The International Association for Automation and Robotics in Construction
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Abstract: In hazardous and uncertain sites, teleoperation is often utilized to execute scheduled procedures from a safe location. A visualization interface, which provides the remote operator with visual information to enhance spatial awareness, is essential to understand site information and receive feedback from the robot. To be effective, the interface must ...
Abstract: Thermal Point Clouds (TPCs) can provide valuable information during the inspection and assessment of the performance of buildings and for energy auditing; however, it faces two issues regarding data: scanning time and redundancy optimization. The use of continuous and discrete scanning paths can decrease collection times, and the automation of ...
Abstract: Construction automation is vital for increasing efficiency, reducing costs, and enhancing safety in the industry. In this paper, we present our latest advancements in autonomous excavator systems (AES) specifically designed for earth moving operations in construction sites. Our proposed architecture integrates perception, planning, and control by merging multi-modal perception sensors ...
Abstract: Modular construction methods have recently gained interest due to the advantages offered in terms of safety, quality, and productivity for projects. In this method, a significant portion of the construction is performed off-site in factories where modular components are built in different workstations, assembled on the production line, and shipped ...
Abstract: Automated construction quality control and as-built verification often involve comparing 3D point clouds captured on-site with as-designed Building Information Models (ad-BIM) at the individual element level. However, signal noise and occlusions, common in data captured from cluttered job sites, can negatively affect the performance of these methods that overlook the ...
Abstract: Efficient performance tracking and monitoring systems can facilitate timely decision-making by management. However, cycle time, which is commonly employed as a monitoring system in segmental production sites, can be time-consuming and only allows for the identification of inefficiencies, rather than supporting decision-making. In this context, operational management concepts with broad ...
Abstract: Reuse of building systems and components has the potential of taking full advantage of the residual utility of building materials. In this matter, disassembly planning plays a critical role for retrieving reusable components in an optimized way. Unfortunately, the implementation of disassembly planning for buildings, at a component level, is ...
Abstract: In order to lower the huge carbon dioxide emissions due to building heating, the goal of this communication is to show how the design of insulation panel layout can be strongly computer-aided during façade building energy renovation projects. The work has been achieved during an applied collaborative research project (ISOBIM), whose ...
Abstract: One main challenge in the full automation of building code compliance checking is in the extraction and transformation of building code requirements into computable representations. Semantic rule-based approach has been taken mainly due to its expected better performance than machine learning-based approach on this particular task. With the recent advancement ...
Abstract: Additive Manufacturing (AM) provides many advantages when applied to the field of construction. However, due to the large scale of construction projects, time requirements for the printing process are also large, making AM processes susceptible to the influence of external variables. Accordingly, it is advisable to employ methods that can ...
Abstract: In response to its stagnating productivity and growing demand for sustainability, the architecture, engineering, and construction (AEC) industry is increasingly pushing ahead regarding digitization and automation. Building Information Modeling (BIM) and Additive Manufacturing (AM) are two technologies that contribute significantly to this development. Although these technologies have similar basic principles ...
Abstract: Visual Simultaneous Localization and Mapping (V-SLAM) is commonly employed as a method in construction robots due to its efficient and cost-effective nature for information acquisition. However, detection and positioning using V-SLAM face significant challenges in low-light construction scenes, such as underground garages or dim indoor locations, where detecting enough valid ...
Abstract: Autonomous excavation systems are currently being developed to help address issues of poor productivity, by automating the excavation process and reducing manpower onsite. However, the impact of automation on the productivity of the excavation process remains to be determined. This paper uses a simulation approach to study this question. A ...
Abstract: This paper presents the development of a prototypical digital twin package for multi-rotor aerial vehicle(MAV) systems, with potential application for monitoring a construction site. The focus is how to create a virtual representation of an actual surveillance system that can be updated from real-time data to effectively help with its ...
Abstract: Construction workers have an increased risk of having muscle fatigue and musculoskeletal injuries, among other non-fatal workplace injuries. As a result, this project aimed to develop and evaluate a low-cost passive wearable exoskeleton system for improving construction workers' safety and health performance, mainly by mitigating the risk of developing musculoskeletal ...
Abstract: The purpose of this manuscript is to outline a scientific task aimed at improving the technological and organizational methods for pressing piles into the ground. The study proposes the development of conceptual piling equipment and construction methods for various structural and technological solutions for pile fields, especially under complicated conditions. ...
Abstract: Recently, global positioning systems - GLONASS and GPS are increasingly used for road construction machines. Often, mobile stations installed on the construction site are used, which increase positioning accuracy, but have a limited range. Providing a signal source to every running machine is very costly. Taking into account the often ...
Abstract: We are currently experiencing a shortage of skilled labor in the construction industry, thus it is imperative to improve productivity at construction sites. One of the most effective ways to address this issue is through the implementation of autonomy. Machine control systems have been utilized for heavy equipment for over a ...
Abstract: To rationalize and automate public civil engineering works, it is crucial to directly utilize the information produced by the contractor for quality/ as-built inspection, and progress measurement. In this study, a highly reliable common data environment that utilizes blockchain and smart contracts to ensure tamper resistance and traceability of construction ...
Abstract: Real-time sensing data and continuously updated project documents pose challenges to project managers who need to analyze these data and documents to derive meaningful information necessary for decision-making. To collect and incorporate heterogeneous data both from offsite and onsite sources, the authors: (1) developed a construction tasks, resources, and techniques ...
Abstract: Scheduling is an essential part of project management, and many processes like procurement, fabrication, and resource mobilization are based on these schedules. If the actual targets lag from the pre-planned schedules, waste is generated in the form of idle inventory. It also results in an increased workload on man and ...
Abstract: In construction, project schedules are still created and updated manually, which takes time, causes errors, and leads to poor planning and scheduling, one of the main reasons for project delays today. Consequently, overcoming these challenges requires an automated schedule management method that extracts information and knowledge from existing and previous ...
Abstract: Site layout planning (SLP) constraints are handled heuristically or through a mathematical approach, as presented in the SLP literature. The real-life constraints of SLP are modelled as mathematical equations and are attempted to be handled through optimisation models. It is observed that the existing mathematical SLP models handle a limited ...
Abstract: Construction 4.0 and Digital Twin are the emerging concepts of the digital era in the Construction Sector. The crux of these digital technologies lies in capturing the rich "real physical" data to model the "virtual" structure to enable the experiments for specific decision-making. Although protocols for the hazardous operations had ...
Abstract: In developing countries infrastructure investment is increased in last few decades. Public private partnership plays important role in low- and middle-income countries for providing finance. 95% of India international trade is transport through port sector. Hence it is big infrastructural project for India to connect with other countries. Public private ...
Abstract: Advanced intelligent robotics technologies like autonomous and collaborative robots in construction sites have been explored in the literature for more than a decade. However, there are only a few prototypes that successfully make it to the field due to various reasons. There is burgeoning interest in the design, development and ...
Abstract: Construction formwork activities are physically demanding and repetitive, increasing the risk of work-related musculoskeletal disorders. This study proposed a digital twin approach to evaluate the ergonomic risks associated with vertical formwork operations using steel formwork systems in Indian construction projects. The on-site observation captured the workers' postures, allowing for more ...
Abstract: Labor shortage has consistently been a challenge in the construction industry for decades. As a data-heavy industry, information access and technological innovations are critical for pique performance. Currently, the industry is witnessing a global trend of workforce diversity, as industry leaders are emphasizing its importance. Research shows that gender and ...
Abstract: Design Hub India and Jade University of Applied Sciences conducted a simulation game in Bangalore, India to teach the networked and digital planning methodology Building Information Modelling (BIM). The teaching format was developed in Germany and has already been implemented and field-tested in teaching. At this event, the format was ...
Abstract: Digital workflows in the Architecture, Engineering and Construction (AEC) industry have been working with a wide range of software solutions trying to enable a Design-to-Production (DtP) end-to-end data flow. Thereby, state-of-the-art software solutions attempt to streamline the design and production processes accordingly. However, most digital workflows lack in terms of adequate ...
Abstract: Bridges are essential components of civil infrastructures that enable joining highways and cities, as well as facilitating movement between different geographical locations. Deterioration of bridges can pose a threat to public safety and hinder economic activities. The development of innovative and reliable asset management tools to support the optimization of ...
Abstract: The integration of BIM (Building Information Modeling) and GIS (Geographic Information System) is promising to develop Asset Management Systems (AMS) for complex systems such as university assets. The potential lies in the ability to connect and contextualize data from several domains and at different scales, considering the relationship between buildings ...
Abstract: In construction management, a spatial conflict between two activities is generally identified as the intersection between related workspaces. Such assumption works well for detecting the majority of conflicts. Nevertheless, in certain dynamic scenarios, a spatial interference between two activities may occur even if the related workspaces do not intersect each ...
Abstract: An omnidirectional (i.e., 360°) camera is an efficient device that can capture the status of a room with a single shot. To detect objects in a spherical image captured by a 360° camera, the image should be flattened and divided into patches reflecting normal fields of view (NFoV). However, detecting ...
Abstract: In domain-specific named entity recognition (NER), the out-of-vocabulary (OOV) problem arises due to linguistic features and rare vocabulary. OOV problem is particularly challenging in agglutinative languages such as Korean. The irregular decomposition of morphemes makes it difficult to represent all of them in language model dictionaries, resulting in poor NER ...
Abstract: In construction environments, modifications to the dimensions, positioning, and trajectory of plumbing infrastructure within edifices are frequently necessitated by on-site conditions and pragmatic installation procedures. Recent advancements in Scan-to-BIM technology have streamlined pipe construction processes by monitoring development through a 3D model. However, existing 3D point cloud processing methods rely ...
Abstract: Mining is rapidly digitalizing and big data surrounds mines in their everyday activities and processes. Building Information Modelling (BIM) has long since taken an indispensable role in the design and management of buildings and infrastructures and is currently widely used as a standard for information management. Based on the results ...
Abstract: The current trends exhibit that the construction industry is focusing on implementing the Building Information Model (BIM) to improve visual analyses, cost estimation, and information exchange. Though standards, requirements, and development control rules (DCR) govern the construction project lifecycle, only a few applications have been developed to investigate BIM's capability ...
Abstract: The automation of steel construction requires new possibilities to link process data, measured deviations and tolerances. Our current research in robotic steel fabrication aims to address this challenge by developing an adaptive information model interface that can seamlessly integrate the cross-process considerations necessary for precise and efficient fabrication. The objective ...
Abstract: Digital twins, the virtual counterparts of objects throughout their life cycle, are a crucial component of ongoing digitization. While the civil engineering community has already recognized the advantages of utilizing digital twinning, there is still a lack of comprehensive research in the field, resulting in uncertainties. This article proposes a ...
Abstract: Management of environmental hazards in underground mining and construction sites has always been a challenging task for project managers and site engineers. Poor ventilation, the production of hazardous gases, dust, and considerable heat and humidity are some of the inherent characteristics of these ecosystems. Most conventional underground risk management methods ...
Abstract: Following the example set by Industry 4.0, digitization is being proven as a vital tool in equipment-intensive construction processes. Telematics data from equipment is sent to platforms. The profitable use of this data is part of today's research regarding digital twins. This paper shows the conformity to Industry 4.0 terminology ...
Abstract: While 3D Light Detection and Ranging (LiDAR) sensor technology is becoming more advanced and cheaper every day, the growth of digitalization in the Architecture, Engineering and Construction (AEC) industry contributes to the fact that 3D building information models (BIM models) are now available for a large part of the built ...
Abstract: Monitoring the progress of construction operations on site is crucial to keep an up-to-date schedule. In the past, manual methods were used for that purpose, which lead to errors and delays in generating up-to-date schedules. Current practices and research lines have been studying different methodologies to reach a fully automated ...
Abstract: In the digitalized era of Construction 4.0, ensuring the confidentiality, availability, and integrity of digital assets through cybersecurity is crucial for the construction industry. Although more than 75% of respondents from a Forrester survey who are in the construction, engineering, and infrastructure industries reported to have experienced a cyber-incident in ...
Abstract: The U.S. Army Corps of Engineers (USACE) Savannah District recently invested in the adoption of a process of transferring 3D Light Detection and Ranging (LiDAR) scan data into a Building Information Model (BIM), a process commonly known as Scan to BIM. This research explores the challenges and benefits of adopting ...
Abstract: The construction industry is going through a digital transformation where automation and robotics are slowly making their way into construction projects. This change brings numerous benefits, such as cost and time efficiency and higher accuracy and quality. At the same time, it raises cybersecurity concerns. Since most construction environments are ...
Abstract: Robustness to overexposure conditions poses a significant challenge in the visual simultaneous localization and mapping (V-SLAM) of construction robots. Limitations in sensor exposure lead to the loss of information, making it difficult to track enough feature points for construction robots under overexposure conditions, owing to the assumption of constant brightness ...
Abstract: The implementation of Building Information Modelling (BIM) is a widely adopted pattern of revolution in the construction sector and the results gained through BIM adoption in multidisciplinary projects are well pronounced. Even though BIM is a widely accepted technique, its adoption in Kerala, especially for Kerala government projects is rare. Kochi ...
Abstract: The construction industry is one of the most information-intensive industries where the success of projects depends on information being accurate, complete, timely, readily available, and understandable by different recipients. As projects become complex and processes become more digitized, the value of capturing, tracking, accessing, and sharing lifecycle-spanning data becomes critical ...
Abstract: The aim of the research is to discover the interrelation between Construction 4.0 technologies and Sustainable development Goals (SDG) in a complex project. The construction of the National Athletic Stadium in Hungary of the 25.000m2 steel and cable membrane roofing structure demanded special innovations due to its uniqueness and its ...
Abstract: Building Information Modeling (BIM) has demonstrated a wide range of merits over traditional and modern constructions. The integration of generative design (GD) with BIM in the construction industry has become an interesting topic, even though the concept is not very new. Prefabricated construction (PC) offers several advantages over traditional construction ...
Abstract: Recent developments in Artificial Intelligence (AI) provide unprecedented automation opportunities in the Architecture, Engineering, and Construction (AEC) industry. However, despite the enthusiasm regarding the use of AI, 85% of current big data projects fail. One of the main reasons for AI project failures in the AEC industry is the disconnect ...
Abstract: Buildings are one of the major energy consumers and the biggest producers of greenhouse gases, accounting for close to half of all energy emissions in construction industry. Construction stakeholders have been increasingly focusing on the broad idea of sustainable building design and construction technologies. The goal of sustainable design extends ...
Abstract: The use of robotic platforms greatly facilitates the reconstructions of 3D models of buildings and automates tasks that would be tiring and inaccurate when carried out manually. In the specific area of thermal monitoring of buildings, robots can also develop an important role providing dense temperature information of envelopes and ...
Abstract: Traditional construction processes have certain shortcomings, due to the waste generated, the quality, safety, and environmental problems, etc. In this sense, certain technological innovations are presented as an acceptable alternative in a country to improve these construction processes. One of them is 3D concrete printing, which requires a printer that ...
Abstract: Building recovery is always a major issue after disasters due to the urgent need for efficient assessment of damaged buildings and effective management of required resources. At the same time, it is necessary that building recovery planning considers the impact of used materials on the environment as well as the ...
Abstract: The integration of BIM and sustainability is a key success criterion for sustainable planning, construction and operation and maintenance. Actually, various research is conducted to integrate the economic, environmental and social aspects in the BIM method. Especially, Life Cycle Assessment (LCA) and Life Cycle Costing (LCC) are subjects of research. ...
Abstract: The construction industry is highly energy intensive and causes significant environmental impacts and reduction in natural resources. A radical change in current practices is necessary for achieving a circular economy in the construction sector. Structural holes in the supply chain, coordination of diverse stakeholders, and resource management at the end ...
Abstract: The goal of this study is to identify people's intentions to use smartwatches and how their use of these devices is affected by the advantages and disadvantages of the IoT. For the research work, five cities were chosen, Delhi, Mumbai, Kolkata, and Chennai. These cities were chosen as a study ...
Abstract: The International Association for Automation and Robotics in Construction (IAARC) and the 39th ISARC organizing committee are pleased to present the Proceedings of the 39th International Symposium on Automation and Robotics in Construction held, in a hybrid mode, on July 13-15, 2022, at Universidad de los Andes, Bogotá, Colombia. The ...
Abstract: The debates around the Urban Heat Island phenomenon (UHI) have gained momentum in the context of smart cities and sustainable development. It is crucial to understand the complex interaction between urban features and temperature variation in the city based on reliable and detailed data. Yet, the complex interaction between the ...
Abstract: Geometric quality control (QC) in a construction project is an important but time-consuming and not value-adding task. While significant progress is being made in construc-tion digitalisation, geometric QC processes remain highly manual and inefficient. This manuscript proposes a new methodology to pre-process initial information contained in the as-designed Building Information ...
Abstract: The preservation of highway infrastructure is essential for maintaining its capacity, safety, and efficiency for commerce and defense. Pavements are among the most important elements of highway systems that deteriorate over time. Hence, the goal of pavement asset management is to seek efficient investments where the methods applied will aid ...
Abstract: Segmentation tasks in computer vision have been adopted in various studies in the civil engineering domain to provide accurate object locations in images. However, preparing an-notation to train segmentation models is a time consuming and costly process, which hinders the use of segmentation models in vision-based applications. To address the ...
Abstract: The use of robotics in construction projects is still in its infancy despite the opportunities that robots can present to the improvement of construction practices. One of the strategies to effectively increase the reliance on robots in construction is increasing the knowledge and improving the educational programs about robotics for ...
Abstract: Conventional mobile robots rely on pre-built point cloud maps for online localization. These map points are generally built using specialized mapping techniques, which involve high labor and computational costs. While in the archi-tectural, engineering and construction (AEC) industry, as-planned building information modelings (BIM) are available for management and operation. In ...
Abstract: Natural disasters lead to severe deterioration of valuable highway assets, including pavements that should quickly return to service after extreme events such as flooding. Various prediction models were developed to predict pavement performance for several purposes, including maintenance management, budget allocation, and investment strategy. However, limited studies focused on developing ...
Abstract: Machine learning (ML) is a purpose technology already starting to transform the global economy and has the potential to transform the construction industry with the use of data-driven solutions to improve the way projects are delivered. Unrealistic productivity predictions cause increased delivery cost and time. This study shows the application ...
Abstract: Progress monitoring is one of the essential tasks while executing a construction project. Effective monitoring will lead to an accurate and timely analysis of the project's progress which is required to make vital decisions for project control. On the other hand, inefficient and delayed updates regarding the project's progress, which ...
Abstract: With growing demand for large scale exterior envelope prefabrication solutions beyond precast concrete, Engineer-to-Order (ETO) prefabrication firms must develop reliable methodologies to manage finish goods inventory of large components. The imbalance between fabrication time and installation requires ETOs to forecast likely consumption of transportation resources at the proposal stage with ...
Abstract: Generating digital 3D buildings models from scratch is time consuming and labor intensive. In this paper, we present an automated detection process leveraging computer vision and the information available in 2D drawings to reduce 3D modeling time. The recognition system is limited to walls and has two parts: (1) Image ...
Abstract: The heating, ventilation, and air conditioning (HVAC) system is a highly complex part of a building that requires high specialty and expertise to understand and analyze for energy modelling and simulation purposes. Significant manual effort is needed for information extraction from the mechanical designs, to support the creation of an ...
Abstract: The rapid pace of technological transformation in sustainability assessment in the construction industry has directed the development of tools and policies. Building information modelling (BIM)-based documentation processes for green building certification systems (GBCS) credits continually require re-assessments. The relationship between BIM and GBCS is minimal in the current literature, which ...
Abstract: The majority of innovative approaches in the realm of the retrospective generation of building information models for existing structures deal with geometry extraction from point clouds or engineering drawings. However, many building-specific or object-specific attributes for the enrichment of building models cannot be inferred from these geometric and visual data ...
Abstract: BIM (Building Information Modeling) has become increasingly important in recent years. At the center of BIM is the digital information model of a building. While such information models are already used intensively in building construction for small-scale robotic applications, digital models are only used for large-scale measures and machines in ...
Abstract: Building Information Modeling (BIM) was conceived as a working method for networked planning using software assistance. Multiple stakeholders in the construction industry are involved in the design and management of digital representations of the physical and functional characteristics of a facility in the BIM model. Design variant management coupled ...
Abstract: The concept of Digital Twin (DT) has emerged in recent years to facilitate the use of Building Information Modeling during the entire projects' lifecycle. In the DT concept, cyber-physical system theory is utilized to collect condition data about an existing asset and then integrate this data into the digital model. ...
Abstract: This paper proposes a pipeline for the automation of data between two realms: i) simulation, in a fully nonlinear, and time-dependent structural analysis model and, ii)concrete maturity monitoring data from the construction site. The connection enables an information construct understood for its use within the Digital Twin of the ...
Abstract: The use of standardized BIM Classification Systems helps to improve the efficiency of the tendering, planning, and control of construction projects. The Colombian government has identified BIM as a key strategy to help increase the construction industry's productivity and improve value for money in public works projects. At the core ...
Abstract: This document presents an automated pipeline to process sensor-based data produced during load tests on digitally twinned HS railway bridges. The research is developed within the frame of the H2020 European project ASHVIN, related to Assistants for Healthy, Safe, and Productive Virtual Construction, Design, Operation & Maintenance using Digital ...
Abstract: The low level of digitization in sharing information and the fragmented processes in the construction supply chain negatively affects cash flow across the supply chain, resulting in non- and late-payment issues. Even though a cloud-based 5D BIM platform and Blockchain-enabled smart contracts have the potential to address the issues, their ...
Abstract: This paper examines the value of including digital twin technology as a hands-on learning activity in a graduate-level building construction course. The methodology of teaching digital twins as a unit is presented, and the benefits of introducing this topic are examined within the framework of several learning objectives. The campus ...
Abstract: The achieved benefits of Open Infrastructure BIM in Finland have been studied. The newest concept of Open InfraBIM in Finland is introduced. Industrial experiences and observed remarkable benefits in three large-size infrastructure design and construction projects carried out in 2012-2022 are presented and evaluated. Based on the observations and achieved ...
Abstract: The digital transformation of the construction industry is accelerating with the advances in information technology (IT) and operational technology (OT) and their convergence. While the benefits of such transformation in construction are apparent, cybersecurity aspects are usually overlooked. Cyber-attacks against project information can cause the exposure of confidential project data, ...
Abstract: Fire management is a key aspect of building management. During a fire, the primary reason why evacuees cannot evacuate in time and causalities occur is their lack of familiarity with the evacuation route. In practice, two dimensional images or videos are used as aids for firefighting educational training. However, they ...
Abstract: Construction safety training through Virtual Reality (VR) environments offers workers an interactive and immersive experience. Many complex interactions and realistic scenarios are possible in VR using accessories such as data gloves and trackers which allow data recording on incidents. For example, misinterpretation of hand signals construction workers give during operations ...
Abstract: Securing the safety of highway work zones is one of the most pressing issues in the highway maintenance and oper-ation community. Recent studies have indicated that high-way workers keep suffering from fatal injuries and death caused by traffic, long-night shifts, and limited space for ma-neuvering. In the meantime, recent advances ...
Abstract: The acceptance of concrete printing as a viable construction method is limited because of a lack of expertise and due to the heterogeneous and non-standardized nature of additive manufacturing (AM) data modeling, affecting the reliability and the interoperability of the concrete printing process. To advance standardization of AM data modeling ...
Abstract: Unmanned aerial vehicles (UAVs) are being employed in many areas such as photography, emergency, entertainment, defence, agriculture, forestry, mining and construction. Over the last decade, UAV technology has found applications in nu-merous construction project phases, ranging from site map-ping, progress monitoring, building inspection, damage as-sessments, and material delivery. While extensive ...
Abstract: The interest in the use of robots in the construction industry has been around for several decades; however, the advancement of technology for related applications has been slow. Considering that most construction robots are not fully automated and require extra guidance and instructions from the operators, an autonomous way for ...
Abstract: Building activities involving heavy suspended elements are one of the construction activities with the highest level of danger. Typically, during these activities, one or two masons work in conjunction with a machine such as a crane or a lift-ing machine. Several robotics solutions have been proposed to replace the masons ...
Abstract: Teleoperated construction machinery dominates construction sites, as it can, with relatively little effort, prevent operators from working in dangerous conditions by keeping them in the control loop. However, the operators usually have to execute tasks with limited situational information due to poor depth perception from 2D camera images, reducing local ...
Abstract: In this paper, a framework for foam printing with a Cable-Driven Parallel Robot (CDPR) is described for building large parts. Compared with the traditional robotic systems, CD-PRs have a large workspace that can include the printing area. In addition, the potential reconfigurability of CDPRs is an asset to get rid ...
Abstract: One of the many ways in which automation may help the construction industry is on-site material management. This paper presents an automated process where materials are selected for staging by detecting construction progress from site images. The materials are then delivered to their re-spective workface locations by a robot. The ...
Abstract: Work-related musculoskeletal disorders continue to be a severe problem in the construction industry. Rebar workers are exposed to ergonomic risks such as repetitive stooping and forward bending resulting in low back injuries. Wearable systems such as back support exoskeletons are emerging as potential solution to reducing the risk of low ...
Abstract: Planning, monitoring, and maintenance of highway assets is an essential, long-term operation for successful civil infrastructure management. These monitoring and maintenance activities are usually carried out manually, suffering from time-consuming, costly, potentially dangerous tasks. The advancements in Unmanned Aerial Vehicles (UAVs) and computer vision technologies have demonstrated the potential to ...
Abstract: Identifying efficient processes for classifying text-based safety reports using Machine-Learning (ML) is an essential area of research. However, much of the previous work on the topic relies on supervised learning approaches, which are often manually intensive and require large volumes of pre-labeled data. To achieve reduced requirements for human intervention ...
Abstract: The interpretation of construction contracts is crucial to the management and success of a project. Correct and accurate interpretation could support the smooth construction of high-quality built assets. Misunderstanding and omissions may lead to costly rework and delay. One main challenge of construction contract interpretation lies in the length of ...
Abstract: In complex and dynamic construction sites, efficient progress monitoring and reporting play an important role in preventing schedule delays and cost overruns. Such reporting requires detailed and accurate records from job sites to help project managers in comparing project's current state to its as-planned state for enabling timely corrective actions. ...
Abstract: Construction is looking closely as Industry 4.0 paradigm (I4.0) transforms many processes in Manufacturing. Technologies associated with I4.0 were born out of the ever-present necessity of automation (and integration) on the shop floor, as well as of better management in product lifecycle with computer-aided software. Although indeed relevant outside Manufacturing, ...
Abstract: After the COVID-19 outbreak, a new concept of building maintenance (BM) systems is needed because current approaches highly rely on physical contact between workers, engineers, and managers. It imposes health and safety risks as increasing concerns about infections and spreads. This adds burdens to take unavoidable close contact and health ...
Abstract: With the use of digital data, in conjunction with technologies such as BIM and digital twin, construction professionals have the ability to monitor the progress efficiently and perform detailed quality assessments. The rapid development of multiple data acquisition technologies, such as terrestrial laser scanning (TLS) and photogrammetry techniques, has allowed ...
Abstract: Oil and Gas (O&G) projects have complex engineering endeavours. A digital information management process is vital to increasing efficiency due to projects' size and complexity. The industrial plants' commissioning is regarding on-site testing to check performance and ensure final compliance of all equipment and systems installed. On-site commissioning procedures are ...
Abstract: The Architecture, Engineering, and Construction (AEC) industry has undergone a significant and radical transformation in its design and documentation process as it evolved from the days of the drafting board to today's Building Information Modeling (BIM) process. As BIM remains the center of this transformation, it is important to keep ...
Abstract: The applicability of wireless 5G network to the information communication needs of autonomous excavations is studied. An autonomous excavator developed by the University of Oulu is used for the experiments in a 5G test network at the Linnanmaa Campus of the University of Oulu. In the experiments, remote and autonomous ...
Abstract: In a volatile, uncertain, complex, and ambiguous world, Industry 4.0 can be the silver lining of the construction industry which has been facing daunting chronic problems for decades. The transformative impact of Industry 4.0 which has been well documented in the industrial sector has spurred interested among construction researcher to ...
Abstract: In construction projects, the space required for executing each activity is unanimously recognized as a limited but renewable resource, like workers, equipment, and materials. Overloading a given resource space, as demonstrated by statistics, leads to efficiency losses and safety threats. Despite the valuable contributions provided by academics and the construction ...
Abstract: State-of-the-art building energy systems exhibit a high technical complexity. In the commissioning phase, technical building elements (TBE) are put into operation trade-by-trade and as linked complete systems. Besides the correct wiring on component level, instantiating the building automation and detecting errors is a cumbersome process in practice. The paper addresses ...
Abstract: Sharing building data or building models still represents a problem within design practices in the architecture, engineering and construction industry. Additionally, digitalization, automation or traceability of processes face numerous workflows and changing stakeholder constellations, with multiple software tools escaping the scopes of common data environments or similar digital solutions. Vague ...
Abstract: Digital technologies are taking place in all spheres of the society and affecting every business sector including the construction industry. As a key player of the industry, local government in New Zealand invests in numerous digitalised Asset Management Information Systems (AMIS) in order to efficiently and effectively manage its infrastructure ...
Abstract: As innovations in construction robotics are being tested and deployed on site thanks to technological advancements in computing and sensing, Civil Engineering researchers must consider how to connect real-world innovations with research and teaching at a much faster pace. Observing the practice helps identify problems and test engineering solutions and ...
Abstract: Automation of construction processes facilitates increased productivity and overall higher project performance. This paper presents a methodology for comparative assessment of different construction processes and selection of an optimal solution based on appropriate automation implementation. Construction processes are quantitatively evaluated using a methodology combining case-based reasoning and compositional modeling. Through ...
Abstract: The construction industry is characterized by low productivity and inefficient processes. In addition, the level of digitalization and automation in this industry is low compared to other industries. Although the added values of using robots in the industry have been known for a long time and the technology has been ...
Abstract: Construction documentation is necessary on every project. Information captured must be accurate, timely and actionable. With several technologies and techniques available, the aim of this study is to determine the current state of the industry on this topic. The objectives of this study are to investigate the status of construction ...
Abstract: Construction remains among the most hazardous workplaces, thus a significant amount of time and effort in reporting and investigating the accident occurrences has been done in the past decades by government agencies. In light of construction safety, analyzing textual information in construction accident records may assist in our comprehension of ...
Abstract: Flaggers are a high-risk profession. They are always required to work closely with the open traffic lanes. Any distracted, speeding or intoxicated drivers might hit them, leading to their injuries and fatalities. From 1980 to 1992, a total of 54 fatalities involving flaggers in the construction industry have been reported. ...
Abstract: In this paper, we propose a teleoperatedconstruction 3D printing technology, called TeleLayering, forplanetary and terrestrial applications. The TeleLayeringtechnology is enabled by effective multimodal control andmonitoring systems and enhanced construction 3D printingrobots to build or repair a variety of structures in extremeenvironments without the need for human presence on thejobsite. This ...
Abstract: As an integrated process in construction projects,quality assessment and management (QA&M) can be importantto prevent failures during construction. The existing QA&Mpractice such as the evaluation of the geometric tolerance andsurface qualities is mostly performed manually which can belabor-intensive and tedious. This study proposes a computationalframework for a robot to perform ...
Abstract: Additive manufacturing (AM) is no longer a new technology and is already being used profitably in many sectors of the economy. AM is also becoming increasingly popular in the construction industry, and more and more research is focused on unlocking new building materials for AM. As a digital fabrication method, ...
Abstract: Construction inspection is an important part of the construction management process to ensure that the project is compliant with the requirements, regulations, and standards. Due to time and cost constraints, inspectors representing owners, as well as architects, designers, and other stakeholders might not be able to visit and inspect the ...
Abstract: The research presented in this paper introduces a novel method for Augmented Reality informed human-machine collaboration in the context of timber prefabrication. The concept is based on the craftsman controlled instructive interaction between a High Level of Automation (robotic) fabrication setup and a human co-worker. It argues that by enabling ...
Abstract: Efficient project monitoring is a key to a project's success. Linear construction projects span across large distances and require similar activities to be carried out repeatedly over multiple small segments for project completion. Thus, monitoring their progress becomes challenging. This is a matter of concern since proper progress monitoring can ...
Abstract: Population aging is one of the major challenges facing the world. In particular, the advent of China's aging society caused by various factors will be a major threat to its future development. Therefore, serious measures need to be taken to achieve its demographic sustainability. Smart furniture can be considered as ...
Abstract: In this paper, we propose an excavator activity analysis and safety monitoring system, leveraging recent advancements in deep learning and computer vision. Our proposed system detects the surrounding environment and the excavators while estimating the poses and actions of the excavators. Compared to previous systems, our method achieves higher accuracy ...
Abstract: With the growth in automated data collection of construction projects, the need for semantic navigation of mobile robots is increasing. In this paper, we propose an infrastructure to leverage building-related information for smarter, safer and more precise robot navigation during construction phase. Our use of Building Information Models (BIM) in ...
Abstract: A view is among the critical criteria in an architectural design process. Presently, it is assessed by conventional site observation, labour-intensive data collection, and manual data analysis before designing a building mass, plan, façade, openings, and interior space. City Information Model (CIM), with its capabilities to store, visualize, and analyze ...
Abstract: Blockchain is a disruptive technology that has great potential in securing BIM data immutability and traceability. However, integrating BIM management with blockchain still faces a risk of sensitive information leaking because blockchain is such a transparent network that BIM data are disclosed to every member. Therefore, this paper proposes a ...
Abstract: Wastewater treatment plants (WWTPs) are a type of critical civil infrastructure that play an integral role in maintaining the standard of living and protecting the environment. The sustainable operation of WWTPs requires maintaining the optimal performance of their critical assets (e.g., pumps) at minimum cost. Effective maintenance of critical assets ...
Abstract: Interoperability is an ever-present challenge for the construction industry despite the intensive research and standardisation efforts, including Building Information Modelling (BIM), and Common Data Environments (CDEs). This paper presents the BIMERR Interoperability Framework (BIF), a cloud-based platform aiming to facilitate seamless data integration, leveraging flexible ontology and data model management ...
Abstract: The application of Building Information Modeling (BIM) technology allows a digital representation of physical and functional characteristics of places, which is particularly beneficial to civil engineering. The present article proposes to evaluate the utilization of BIM technology to quantify the damage caused to concrete structures, based on a systematic review ...
Abstract: The operation of automated construction equipment and autonomous construction robots depends on contextual information regarding the job to be carried out. Therefore, robots as well as equipment require a task-based construction site control system. Such a system also provides some advantages for construction managers. However, some prerequisites must be met ...
Abstract: Tendering & Bidding generally involve many construction units participating in a project bidding. The purchaser selects the best bidder with a short construction period, low cost, high quality, and good reputation. There are huge economic benefits and points of concern behind it. Tendering suffers an increased risk of data tampering ...
Abstract: Half of the global population lives in cities, and it is still increasing as people are moving to cities in search of better education, job opportunities, and so on. The existing infrastructures of the cities are being stretched beyond their capacity and requirements for well-organized urban environment and efficient urban ...
Abstract: Due to the increasing global population, the Architecture, Engineering, and Construction (AEC) industry is placed in front of a significant challenge to provide and maintain the necessary urban development and solid infrastructure systems to support this increase. Infrastructure systems must be resilient and sustainable, especially being critical to the nation's ...
Abstract: Prefabrication is regarded as the first level of industrialization in the construction industry. A unified 4D information model with good interoperability is the key issue to realize effective project management of prefabricated buildings. This paper intends to promote prefabricated buildings' management by developing an IFC-based framework to institute a unified ...
Abstract: Digital 3D environments are already integral parts of construction and are on the critical path of end-to-end site autonomy. They currently provide human users at all levels of an organisation, access to relevant digital representations of job-critical information at various lifecycle modes, from asset design through to asset maintenance. However, ...
Abstract: In construction cost estimation, building information modelling (BIM) has been commonly utilized to support automatic quantity take-off (QTO). However, conventional BIM models do not contain all the necessary information for QTO, and the calculation does not follow the descriptive rules in standard method of measurement (SMM), which impact the cost ...
Abstract: Identifying hazardous zones is one of the priorities and duties of construction safety monitoring. With the emergence of vision intelligence technology, hazardous zones detected by AI algorithms can support safety managers in predicting potential hazards as well as making decisions. However, the risky area in images/videos continues to suffer from ...
Abstract: In recent years, increasing number of unprecedented rainfall events around the world brought about devastating floods that have been a challenge for urban planners and decision makers. Numerous studies addressed these floods to climate change and investigated its trends at different time scales. In face of many uncertainties caused by ...
Abstract: As a product of commercialization in prefabricated buildings, the information of the whole life cycle of Precast Concrete (PC) is an important basis for product quality traceability and progress control. During the stage of production, transportation, storage and installation, some quality problems inevitably appear on PC, and according to the ...
Abstract: Energy retrofitting is paramount to reduce the use of energy in existing buildings, with benefits to the environment and people's economy. The increasing use of novel technologies and innovative methodologies, such as Terrestrial Laser Scanning (TLS) and Building Information Modelling (BIM), is contributing to optimise retrofit processes. In the context ...
Abstract: Building Information Model (BIM) with rich geometric and semantic information of facilities has increasingly been used to establish the City Information Model (CIM). Although BIMs for new buildings are becoming more available, BIMs for most existing buildings can only be modelled from 2D drawings and specifications. Manual BIM modelling is ...
Abstract: A critical aspect of BIM is the capability to embody semantic information about its element constituents. To be interoperable, such information needs to conform to the Industry Foundation Classes (IFC) standards and protocols. Artificial intelligence approaches have been explored as a way to verify the semantic integrity of BIM to ...
Abstract: Building design processes usually follow similar workflows with different stakeholders and interdisciplinary design teams incorporating their individual domain knowledge. To improve the holistic performance of building designs considering economic and environmental qualities, design decisions based on simulations and analysis in early phases have a significant impact on the resultant design. In ...
Abstract: The customer has the opportunity to participate in the space planning of the house when the customer purchases a pre-sold house, which is called a custom modification. The advantage of providing custom modification is that the design of the house can be customized based on the client's living habits. Because the ...
Abstract: 4D simulation can be used in the planning phase of a project for constructability analysis, which aims to optimize construction processes and improve safety management. The same 4D simulation can be used as a digital twin in the construction phase for progress monitoring and identifying potential safety issues based on ...
Abstract: This study was aimed at developing a building information modeling (BIM) process logger that can capture modeling process information as an event log file. BIM log mining is a research area that focuses on utilizing a massive amount of data created from BIM software usage. Several studies have monitored, analyzed, ...
Abstract: The accurate modeling of critical infrastructure systems (CISs) and their interdependencies is essential to assessing and predicting the behavior of interdependent CISs under various operation scenarios. Existing modeling approaches have limited ability to incorporate CIS domain knowledge and capture the systemic heterogeneity among the CISs, and thus cannot simulate the ...
Abstract: To help project managers better understand non-conformance in prefabrication projects, this research presents a probabilistic empirical study on non-conformance reports (NCRs), their root cause and frequency of occurrence, as well as their impact on the project cost and time. Data from a completed nuclear project were collected and analyzed, where ...
Abstract: Designing a reasonable and efficient transportation system of temporary elevators from the perspective of spatio-temporal planning is beneficial for the successful completion of construction projects. Specifically, the determination of the service period and floor of temporary elevators and the consideration of the limited availability of time and space should be ...
Abstract: The traditional method of burying underground utilities (e.g., water, sewer, gas pipes, and electrical cables) has been used for many decades. Repeated excavations related to this method cause many problems, such as traffic congestion and business disruption, which can significantly increase the social costs. Multi-purpose Utility Tunnels (MUTs) are a ...
Abstract: As part of the Architecture, Engineering, and Construction (AEC) industry, heavy civil engineering with its equipment-intensive processes is a current focus of discussion concerning emission reduction. Adopting Industry 4.0 technologies for resource scheduling can significantly increase the savings potential significantly. One of these digital technologies is the Discrete Event Simulation ...
Abstract: Cross-laminated timber (CLT) is used as the primary structural element for high-rise mass timber buildings. The mass timber buildings that are under construction are largely unprotected as they are not yet equipped with active or passive fire protection systems. With the addition of Types IVA, B, and C, the 2021 ...
Abstract: Modular construction aims at overcoming challenges faced by the traditional construction process such as the shortage of skilled workers, fast-track project requirements, and cost associated with on-site productivity losses and recurrent rework. Since manufacturing is done off-site in controlled factory settings, modular construction is associated with increased productivity and better ...
Abstract: Roofing systems are considered one of the items that in most need of frequent inspection and rehabilitation due to its ongoing exposure to the elements. Manual roof inspections are time-consuming and subjective. This study uses Convolutional Neural Network (CNN), an image-processing technique, to classify roofs according to their damage level. ...
Abstract: In monitoring disaster sites, mobile robots represent a fast, reliable, and practical option to remotely inspect active areas in disaster management for applications such as risk management, search and rescue, and structural assessment purposes. Mobile robots can efficiently collect laser scan data and reconstruct the state of ongoing disaster relief ...
Abstract: Progress quantification of construction projects is critical for project managers to manage projects effectively. The trade-off between computation time and accuracy is a key aspect while selecting the quantification method. Though accuracy is essential, project managers require real-time information about quantities of work completed on various building components to make ...
Abstract: Progress monitoring is key to any successful project. Often this is a hectic task that involves manpower in preparing Daily Project Reports (DPRs) to physically monitor the activities on site. Recent developments in the fields of photogrammetry and point cloud processing techniques have laid a new path in using point ...
Abstract: This paper aims to propose an approach to establishing an intelligent interior design reference image database using 360-degree panorama picture sources. Building interior design reference images are usually taken by people in an ad-hoc way and stored/used for various purposes as non-standardized design communication resources. As several web/apps provide such ...
Abstract: Efficient progress monitoring and reporting require detailed and accurate reports from construction sites in a timely manner. These reports include important information to assist decision-making through comparison of as-built information to as-planned state. Manual reporting is time-consuming, error-prone, costly and is highly dependent on site personnel expertise. Advances recently made ...
Abstract: Obtaining accurate information of defective areas of infrastructures helps to perform repair actions more efficiently. Recently, LiDAR scanners are used for the inspection of surface defects. Moreover, machine learning methods have attracted the attention of researchers for semantic segmentation and classification based on point cloud data. Although much work has ...
Abstract: In the construction industry, contractors require precise knowledge of design restrictions originating from regulatory documents and contract specifications. For the automatic compliance checking of the building design regarding these rules, they have to be converted from the representation in natural language to a machine-readable format. This task, if carried out ...
Abstract: As construction projects resume worldwide and workers return to the job site, the possibility of transmitting the Covid-19 could be added to the extensive list of risks confronting workers in the construction sites; thus, the workers need to work alone in an assigned activity. Many workers are already working alone ...
Abstract: Building consume a large amount of energy and a plenty of methods to mine into energy consumption data to aid intelligent management are proposed. However, the data quality issues are inevitable and the influence is lack of discussion. This paper proposed a data cleaning method combing threshold and cluster method. ...
Abstract: Architects today still very often create traditional 2d plans in the early planning phase, which form the basis for discussions with investors, clients and engineers. The designs are often difficult to understand for non-experts and design variants can only be compared with great effort. The use of BIM models simplifies ...
Abstract: The use of robots in construction has increased the safety and productivity in the construction site. Robots execute complex programmed codes to complete construction related tasks. Unfortunately, there are limitations on project management to monitor the execution process of robot due to undeveloped human-robot collaboration interfaces. Digital Twin (DT) is ...
Abstract: Mechanical, Electrical, and Plumbing (MEP) play a crucial role in civil construction projects. MEP is characterized by various interdisciplinary and interconnected activities of multiple trades. Traditionally, not updated design information and communication problems are very common in this industry. Thus, schedule delays and cost overruns are frequent in MEP construction ...
Abstract: On-demand and real-time building information is of great value to support facility management. Such information can be easily retrieved from an up-to-date building information model (BIM), and then intuitively presented to facility managers or inspectors by augmented reality (AR). However, effective spatial registration into BIM so as to align the ...
Abstract: The increased use of construction machinery in the industry poses challenges of safety and regulation for the site workers. A remote monitoring system for the construction machinery can help in avoiding fatal accidents whilst providing continuous sensor information to the user. The present remote controller has shortcomings of accessibility, less ...
Abstract: Energy-efficient buildings have gained an increasing attention in the construction industry thanks to their significant contribution to saving world's energy consumption. Life Cycle Assessment (LCA) provides an opportunity to improving energy performance of buildings through a holistic assessment of their lifecycle. Previous studies have mainly applied Building Information Modeling (BIM) ...
Abstract: As robots are envisioned to be deployed in construction job sites to work with humans, there is an increasing need for developing intuitive and natural communication between robots and humans. In particular, spatial information exchange is critical to navigating or delegating tasks to collaborative robots. However, such deictic gestures are ...
Abstract: Maintaining good communication is important for keeping the construction site safe and the project running smoothly and on schedule. Hand gestures, as one of the common ways to communicate, are widely used on construction sites due to their simple but effective nature. However, the meaning of these hand gestures was ...
Abstract: Highway construction and maintenance projects have been witnessing a significant expansion across the United States. This expansion, coupled with the ongoing problem of labor shortages, adds pressure on state Departments of Transportation (DOTs) to complete more complex projects under more strict cost and schedule constraints. In recent years, construction inspection ...
Abstract: Spatial conflicts affect crews' productivity and workers' safety. The idea of considering workspaces as a limited resource has brought a remarkable contribution to the effectiveness of traditional scheduling techniques that generally do not consider the spatial-temporal dimension of construction activities. In previous studies, the detection of spatial interferences among main ...
Abstract: Different factors combined invariably cause construction fatalities at any time, most of which could be avoided if workers followed the on-site regulatory rules. However, compliance of regulatory rules is not strictly enforced among workers due to all kinds of reasons, even after prior education and training. To address the difficulties ...
Abstract: The purpose of this study is to compare the safety climate by project size and construction activity with different risk levels. Accidents tend to occur more frequently at smaller sites. As safety climate has been regarded as one important leading indicator preventing accidents, this study hypothesized that larger project tend ...
Abstract: Predicting the outcomes of safety incidents on construction projects is of a great value to various project stakeholders. Accurate estimates allow construction managers to take appropriate preventive measures based on the severity of the outcomes. Such estimates can be predicted using machine learning algorithms, although the quality of these estimates ...
Abstract: Tower cranes play an essential role in the execution of most construction projects. Unfortunately, they are also a major source of fatalities and injuries in the industry, owing to their great mass and large footprint on the site. Aiming to proactively identify and mitigate safety hazards in the design and ...
Abstract: The construction industry accounts for a considerable portion of work-related accidents annually. Taking appropriate pre-construction measures can significantly lessen the probability of these accidents occurring. An essential step toward achieving this goal is identifying the unsafe attributes before construction begins. This research introduces a semi-automatic method for identifying and reporting ...
Abstract: One of the problems with unmanned construction is the lack of visual information, which reduces work efficiency to less than half of that in onboard operation. Therefore, methods to provide visual information using drones and image processing were studied in the past. However, the addition of information causes the operator ...
Abstract: A construction site is a dynamic and complex place where multiple activities, process and elements take place. In an era of digitalization revolution, construction safety management on site faces significant challenges, in particular, there is a lack of understanding about how to raise situation awareness (SA) using digital solutions. Against ...
Abstract: The construction industry is suffering from a high rate of accidents that significantly affect the overall performance of projects. Compared to the conventional safety training methods, Virtual Reality (VR) games offer a more immersive and interactive learning experience for the participants. However, training scenarios in most of the existing VR games lack complex tasks and the realistic ...
Abstract: Construction sites are dynamic, and the environment is changing fast, which means the collective safety equipment, such as fall protection barriers, should also be changed to keep it compliant with the construction codes. However, the safety equipment can become non-compliant for several reasons, e.g., temporal removal in combination with incorrect ...
Abstract: The Unmanned Aerial System (UAS), Aerial Robot or Drone has been a multi-purpose tool for professionals, especially for its unknown versatile applications and regardless of its challenges in adoption. In the built environment and the current global situation, the topic of disaster management has grabbed attention from the scientific community, ...
Abstract: The use of robots has typically improved workers' health and safety and increased productivity and quality in manufacturing. Current advances in robotic and computer technology, combined with BIM, have led to new applications in construction. However, there is no general framework to guide the implementation of robots under current construction ...
Abstract: Quality inspection of existing buildings is a task currently performed by human inspectors. In general, these inspections consist of assessing the different elements of a building as they are being constructed, checking that they are within acceptable tolerances, and meeting industry standards. Typically, this process is carried out by doing ...
Abstract: There has been a growing interest in adopting autonomous robots to perform routine tasks in facilities management. The goal of facility management is to ensure that the facility performs to design standards. Currently, the cost of maintenance and operations of a facility over its life cycle is oftentimes more than ...
Abstract: Timber construction and prefabrication are increasingly important. So far, the degree of automation is low. Due to the great variability of construction projects and the building components, automation systems that can adapt flexibly to different construction projects are required. However, a system that fulfills these conditions does not yet exist. ...
Abstract: Safely waking up a robot at an unknown location and subsequent autonomous operation are key requirements for on-site construction robots. In this regard, single-shot global localization in a known map is a challenging problem due to incomplete observations of the environment and sensor obstructions by unmapped clutter. In this work, ...
Abstract: As-built modeling using advanced visual sensing technologies (i.e., photogrammetry and laser scanning) provides an opportunity for a rapid assessment of construction performance, identifying deviations from 3D CAD/Building Information Modeling (BIM) models (i.e., as-planned model). For reliable decision-making, the accuracy and quality of the as-built model are critical. In particular, data ...
Abstract: Featuring manual-intensive labour as the primary source of productivity, the construction industry is plagued with low efficiencies and high safety risks. Increasing ground robots have the potential to address these shorting comings. However, the complicated indoor sites result in many barriers for adopting unmanned ground robots (UGR), especially in path ...
Abstract: Robotic solutions for the construction industry are attracting the attention of researchers and of the market. Among the various technologies, robotic bricklaying promises to become a disruptive technology. However, most of the solutions proposed so far resulted to be inefficient and did not pass the prototype status. One of the ...
Abstract: Broad research concepts are usually developed in different phases where advances are carried out separately. That is the case of the automated and robotic façade renovation with modules. In this case, solutions were developed independently in the context of two research projects. In order to offer a holistic vision, analyze ...
Abstract: Evolving machine control systems for excavators are getting more capable every year in civil engineering, now they are usually equipped with hydraulic motion control, localization, and design models in form of building information modelling (BIM). Machine control systems are advancing side by side with the adoption of fast wireless connections like 5G and growing trends of ...
Abstract: Modular integrated construction (MiC) is a most advanced off-site technology. In a MiC project, it is critical but challenging to install prefabricated volumetric modules efficiently and safely, as they are much heavier and larger than conventional construction components and materials. However, the current crane-lift executions are heavily reliant on operators' ...
Abstract: Design for Manufacture and Assembly (DfMA) is an emerging concept introduced from the manufacturing sector to transform the construction industry and accelerating "off-site" capabilities. Enhancing the sustainability of DfMA is challenging and requires accounting for various environmental and managerial impacts on the process of manufacture and assembly, especially for the ...
Abstract: Delays and cost overruns are frequent in infrastructure construction projects. Deviations are often identified late, and their causes cannot be traced back. Traditionally, decisions are made by experience and not with the support of data directly coming from the site. Moreover, schedules are often static and thus not able to ...
Abstract: The construction industry is increasingly using information technologies (IT) and operational technologies (OT) to enhance processes and operations through digitization. Creating, editing, storing, and sharing information in digital environments is only one side of the coin; the other involves monitoring and controlling physical processes on construction sites. Given the nature ...
Abstract: Construction management can be grouped into two different levels: strategic early planning, that provides the baseline for project monitoring, and short time initiatives, based on objectives and self-organization from actors who are involved in on-site processes. The latter can be considered as a complex system management issue since it presents ...
Abstract: Construction automation helps to improve productivity and project performance. This study demonstrates a methodology for evaluating project performance improvement through appropriate automation of construction processes. This quantitative evaluation approach involves a compositional modeling driven case-based reasoning methodology. Potential processes for executing the activities in a project can be explored by ...
Abstract: Despite the significant benefits of Building Information Modeling (BIM) that can be potentially achieved during the operation and maintenance (O&M) phase, industry has so far mainly focused on its implementation in the design and construction phases. As-built BIM models cannot be efficiently used mainly due to a lack of expertise ...
Abstract: This work examines the potential of process mining in the Architecture, Engineering, Construction, and Operation (AECO) industry, where process mining is rarely applied. The main reason is that standardised processes are hardly ever performed due to the complexity of projects. To address this application gap, the software-supported cost estimation process ...
Abstract: To ensure public safety, major cities in the U.S. have façade ordinances that require periodic façade inspections and reporting of façade conditions. Our shadowing works show that the current inspection processes are based on inspectors' experience rather than systematic inspection guidance. Besides, façade inspectors have different preferences to group their ...
Abstract: Embedments (embeds) are used extensively in construction for the attachment of dissimilar construction materials, such as, concrete to steel and wood to concrete. Coordinating the layout, delivery, and placement of these embeds is a sensitive construction chore, one that if not done properly, can lead to considerable lost productivity, delayed ...
Abstract: Construction projects are often suffered from time delay and cost overrun, unavoidably leading to underperformance and low productivity of the construction industry. Inadequate monitoring of construction progress is one of the key factors behind this scenario that has a detrimental effect on subsequent construction activities. Recent development in 3D Building ...
Abstract: Three-dimensional (3D) printing is a branch of additive manufacturing (AM) that works by slicing a 3D computer aided design (CAD) model into 2D layers and sequentially printing each layer additively until the entire object is obtained. There has been a growing interest in 3D printing in the architecture, engineering, and ...
Abstract: The Jade University of Applied Sciences organized the digital business game "PING PONG", a BIM Game, to teach students in the Department of Architecture the networked and digital planning methodology BIM. Building Information Modelling (BIM) is to become the planning standard for construction projects and thus a fixed component of ...
Abstract: Circular economy (CE) strategies have been considered to help reduce global sustainability pressures in different sectors; however, there is a gap about how they could be used to contribute to the Architectural, Engineering and Construction (AEC) domain. Past research used lifecycle assessment (LCA) methods or experts' opinions to partially identify ...
Abstract: Typical construction project management and production management courses teach the critical path method, in which only the precedence constraint is considered while scheduling activities. By contrast, the tri-constraint method is an object-based scheduling method that considers activity precedence, resource constraints, and spatial availability. However, the tri-constraint method is only taught ...
Abstract: The increased complexity of construction projects coupled with the increase in customer expectations has fueled electrical contractors' interest in innovation as a source of competitive advantage. Emerging technologies such as Augmented Reality and Digital Twins have recently gained momentum in the electrical construction industry. While these emerging technologies provide a ...
Abstract: Lean construction and Construction 4.0 are two prominent concepts challenging traditional practices in the construction industry. The continuous increase in competition and the demand for more efficient project delivery with less waste is pressuring construction companies to adopt these concepts. Body of literature have discussed the benefits of each separately, ...
Abstract: Digital twin technologies have been widely used among different industries, for which different conceptual models and system architectures have been proposed. However, exactly what processes are required for establishing a digital twin for intended use cases has not been fully studied. This study adopts the systematic literature review analysis focusing ...
Abstract: Unlike what South Korea have accomplished in the Architecture, Engineering and Construction (AEC) industry, current situation of Building Information Modeling (BIM) adoption in South Korea is still challenging. To identify the impact of government-driven manners on BIM adoption, this study presented the status of BIM application in South Korea. First, ...
Abstract: The development of new visualization technologies, such as Mixed Reality (MR) and Augmented Reality (AR), has enabled many applications to improve our daily life. For example, AR has been used in landscape assessment by overlaying virtual objects on a real-world scene to enhance the user's experience. For many advanced visualization ...
Abstract: A significant advancement has been contributed by the break-through technologies like smart contracts and blockchain in banking industry, healthcare industry, and construction industry (Zhang 2020). Blockchain can be defined as the distributed public ledger that records all data transaction that is exchanged and shared between the parties within the systems ...
Abstract: The availability of inspection robots in the construction and operation phases of buildings has led to expanding the scope of applications and increasing technological challenges. Furthermore, the Building Information Modeling (BIM) based approach for robotic inspection is expected to improve the inspection process as the BIM models contain accurate geometry ...
Abstract: With the aim of shifting from the traditional linear flow of resources in the construction industry into a circular model, several studies have focused on the reuse and recycling of construction and demolition waste. The present study focuses on the End-of-Life (EoL) decision-making for built facilities, including buildings and infrastructure, ...
Abstract: In recent years, building information modeling (BIM) has been widely used to create animated simulations for engineering demonstrations. On-site engineers often employ animations generated using a BIM system to explain the current project status to their managers, so that the managers can grasp the actual project status. However, the fidelity ...
Abstract: Using Building Information Modeling (BIM) technology, a unique virtual model of a project can be created, which will allow all parties involved in the design process of project members (owners, architects, engineers, contractors, sub-contractors and suppliers) to collaborate more precisely and more effectively than using traditional processes. The collaboration of ...
Abstract: Proper building maintenance is critical to ensuring the well-being of citizens and sustainable development of the urban environment. For high-rise high-density cities, one challenge to building maintenance concerns the inspection of building exteriors, which has been mostly done manually but is of highly risky, labor-intensive, and error-prone. Unmanned aerial vehicles ...
Abstract: Construction progress monitoring and visualization have recently undergone advanced development. However, the data exchange process between construction offices and jobsites still lacks automation and real-time data records. Furthermore, an information gap between construction offices and jobsite activity persists, and progress inspectors still need to visit jobsites to check progress and ...
Abstract: Lighting performance simulators play an important role in the architectural design process, as it provides the means to address lighting design issues early within the design stage of a construction project life-cycle. Currently, several lighting performance simulators provide support for glare simulation and analysis; however, they are primarily limited to ...
Abstract: Construction, one of the most informationintensive industries, plays a vital role in the prosperity of nations and is expected to grow to new heights. This significant expansion, along with the increased complexity and sophistication of construction projects and rapid advances in emerging technologies, has fueled construction companies' interest in innovation ...
Abstract: Well detailed, informative and accurate work instructions are a necessity to mitigate delays in construction. Today, this is done through a combination of shop drawings, documents, sheets, work pre-planning meetings and onsite verbal work instructions to transfer knowledge and information between all actors. Due to the subjectivity of these methods, ...
Abstract: The rotary snow blower vehicle operated for removing accumulated snow on road shoulders must be performed even in the conditions of a poor visibility due to a snowstorm or road markings completely covered by snow. The operators of the vehicle have to pay full attention to avoid contacting road structures ...
Abstract: Since March 2020, 5G has been commercialized mainly in urban areas in Japan, and 5G communication infrastructure demonstration tests are actively conducted among various industries such as telecommunications carriers and construction industries. The authors installed a portable 5G base station close to tunnel portal in "Subcontracting for research and study of ...
Abstract: We have developed a remote operation support system for underwater excavators and conducted Sea experiments. Underwater excavators have been operated by divers boarding on them. Their main task is levelling rubble mounds of port structures in Okinawa?Japan. However, in recent years, remote control is required due to the decrease in ...
Abstract: The wall of the shield tunnel body is made by assembling panels called segments into a ring shape. For the segment transportation in this site, quick, accurate and safe operation is required in each device mainly using a crane. However, in recent years, it is difficult to secure human resources ...
Abstract: Currently, the high demands and needs to improve productivity and labor-saving in construction industries leads to many automation and mechanization. This report aims to address the shortage of skilled worker in the future as well as improvement of safety, productivity and quality. Comprehensive collection and utilization of information were carried ...
Abstract: Most of the cities road marking inspection is performed manually and considered an ideal candidate for automation because it is a labourintensive process. We propose a solution based on automated quality assessment tool for road marking to detect and qualify road marking characteristics. Our data inventory and data collection approach ...
Abstract: An on-site construction progress monitoring and presentation system is herein developed that overlays the virtual building information model (BIM) onto the real-time scene of the construction site using augmented reality (AR). The system utilizes the novel AR technology of simultaneous localization and mapping (SLAM), which is a real-time positioning technology ...
Abstract: The efficient construction of large industrial plants (e.g. concrete plants, chemical plants) in high quality requires precise planning and execution of the individual logistics and assembly steps. For this purpose, detailed step-by-step instructions should be prepared that can be clearly interpreted and thus implemented by the staff on site carrying ...
Abstract: The rapid growth on the field of project management and building information modelling (BIM) has led not only to the enhancement of architectural/structural design, construction methodology and operation of facilities but also to the generating of the new and exciting applications such as 4D simulations, project scheduling and controlling. 4D ...
Abstract: To support mass customization for industrialized construction, researchers and industry have adopted product configuration strategies. Based on the theory of modularization, pre-defined module libraries can be configured into feasible construction projects. However, the digital representation of configuration knowledge is understudied. Current Building Information Modeling (BIM) product modeling does not enable ...
Abstract: The construction industry suffers from low productivity, and the Building Information Modelling (BIM) has not been successful in enhancing the productivity and the flow of information throughout highly fragmented construction projects. Hence, this study aims to facilitate consistency in information and addresses the current gaps in BIM by applying the ...
Abstract: Individual customer needs and accelerating technological advances in Industry 4.0 are leading to rapid manufacturing changes, thus industrial buildings need to accommodate constantly evolving production processes. The load-bearing structure acts as crucial limiting factor regarding the building's flexibility. As structural performance is highly linked to other design-disciplines, there is a ...
Abstract: Enhanced visualisation is one of the low hanging fruits of BIM implementation. It helps in improving clarity in communications and fosters collaboration & coordination of construction projects for efficient delivery. 4D BIM combines the proposed sequence of work in a project with the 3D parametric digital model of the facility ...
Abstract: Information Quality Assessment (IQA) is an important, but often overlooked aspect, of the Building Information Modeling (BIM) process. Models with information quality issues, such as incomplete and incorrect information, may cause rework during the design process if detected early. Otherwise errors may propagate downstream, leading to significant cost consequences to ...
Abstract: The definition of how agreed information deliveries in building projects are achieved and implemented for different objectives and use cases is always a major topic in project management. This procedure is normally specified in accordance with international standards. However, the absence of checklists, guidelines and recommendations for action leads to ...
Abstract: In the last decade, a significant amount of research and development has been conducted at the intersection of Building Information Modelling (BIM) and reality capture data processing, mainly in the two areas often referred to as ?Scanto- BIM' and ?Scan-vs-BIM'. Interestingly, it appears that all these advances have been made ...
Abstract: Global spending on rework in the trillion dollar construction industry is estimated at $570bn of direct costs and $440bn of indirect costs. The cost of rework is on the rise, and the main cause is rooted in quality deviations from construction design. Real-time or even near real-time remote progress monitoring ...
Abstract: The current practice for information sharing with building information modelling (BIM) is a distributed data sharing based on conversions. Conversions are problematic due to data loss, redundancy, and conflicting information. A single data schema used by all applications is a requisite for a conversion-free data collaboration. In the study, a ...
Abstract: The need for efficient computing in construction modelling and analysis workflows often requires making tradeoffs between the inherent advantages and disadvantages of different datatypes being generated and managed. This is notably observed in geometry reconstruction (e.g., scan-to-BIM, reverse engineering, etc.), where a tradeoff often occurs between computational efficiency and the ...
Abstract: The Architecture, Engineering and Construction (AEC) industry is still one of the most hazardous industries in the world. Researchers impute this trend to many factors such as the separation between the phases of safety planning and project execution, implicit safety issues and, most of all, the dynamic and complex nature ...
Abstract: New innovative and digital approaches, in particular digital methods like Building Information Modeling (BIM), are being used more and more in the Architecture, Engineering and Construction (AEC) Sector. However, most of building operation and maintenance processes still follow conventional processes and are hardly supported by digital databases. Within the widespread ...
Abstract: Due to the continuous improvement in data acquisition, storage and evaluation, digital technologies are penetrating ever deeper into the operational business of the construction industry. Modern information and communication systems are at the heart of digital working methods. They encompass the factors - People, Processes and Data -, which are ...
Abstract: Digital twin (DT) is commonly known as a virtual model of a physical object, a process or a system. In order to create DT, the emphasis is on building a Cyber-Physical System (CPS), where information collected from physical processes is used for computation to generate a real-time monitoring cyber model. ...
Abstract: Nowadays, it is ever more common to find mentions in the scientific literature to a "Construction 4.0". Considering, for instance, Offsite Construction, it is clearer how such concept could be realized. Current widespread adoption of BIM helps but is not enough to realize that end, because it is, in general, ...
Abstract: Traditionally, when an engineer wants to use Building Information Model (BIM) on-site to support tasks for construction or maintenance, the common approach is to use a tablet or a notebook to run a BIM viewer, thus requiring manual operation for model manipulation. In addition, the BIM presented through the screen ...
Abstract: Workspaces in a construction project are considered as critical and limited resources. Since the workspace conflicts cause productivity loss and poor quality, construction researchers have been exploring different workspace definitions and solutions to improve the situations. Construction workspace' function can be classified according to the user's needs and characteristics of ...
Abstract: Construction activities require materials or resources to be arranged while planning the route of how these materials or resources can be transported is not a simple process. Traditionally, subcontractors will arrange a daily meeting and negotiate the desired space on site for the next day's resource transporting. However, many of ...
Abstract: The BIM method is perceived as a synonym for the digitalization of the construction industry. The application of this method enables most of all, the consistent and uniform information management and therefore affords a more efficient communication and collaboration environment to all participants in the life cycle of the respective ...
Abstract: Digital Fabrication is an emerging systemic innovation in the architecture, engineering and construction sector. However, the design process for digital fabrication lacks an integrated management process or digital collaboration platform. One reason may be a lack of industry stakeholder needs for such processes and platforms. To explore and facilitate such ...
Abstract: In a centralized air distribution system, the designed ductwork layout impacts the system performance and the construction time and cost. Engineers face various challenges, including spatial limitations, leading them to use assumption-based design methods to balance their design with construction requirements. As a result of this shortcoming, insufficient design details ...
Abstract: Visual facility inspections performed manually are tasks that can be automated. Segmentation of facility image data is one of the automated methods of identifying problems in facilities. However, the machine learning methodology that is mainly used to train the segmentation model requires a large amount of training dataset. Preparing training ...
Abstract: In Japan, earthmoving workers are aging rapidly, and more than one million skilled workers will retire at once in the near future. Thus, the mass retirement of these skilled technicians could bring a significant drop in production capabilities throughout the earthmoving industry. To solve this problem, it is expected that ...
Abstract: Construction robots are devices of increased danger and, under certain conditions, can become a source of injuries to maintenance personnel, as well as lead to the failure of technological equipment. Most of the accidents are associated with the presence of maintenance personnel in the working area during programming, configuration, training, ...
Abstract: In recent years, automation of mining equipment has been required to improve productivity, predictability, and safety of mining operations. Some major mining companies have begun efforts to automate dump trucks that transport overburden and minerals, eliminating the need for human operators, aiming for reducing labor costs, increasing operating hours, and ...
Abstract: The use of robotic systems on construction sites can efficiently reduce construction time and increase safety by replacing construction workers in monotonous or dangerous operations. Robots for on-site construction applications are challenging and difficult to implement because of the evolving and unstructured nature of construction sites, the inherent complexity of ...
Abstract: In the construction of high-rise buildings, the conventional methods for the on-site installation of prefabricated facade modules require considerable manual handling. This unsafe and inefficient practice can be solved through automation. This paper critically reviews automated Unitized Curtain Wall (UCW) installation and discusses opportunities for future development, as found in adjacent ...
Abstract: In Japan's construction industry, techniques of producing complex three-dimensional (3D) formwork at construction sites are conventionally developed using the sophisticated skills of carpenters. Inspie of the development of digital technologies, the production of free-form shapes faces considerable cost and time management risks that require pragmatic solutions. In the efficient building ...
Abstract: Cable path optimization is a commonly encountered problem in industrial construction projects. Numerous designs are technically feasible but are associated with varying construction costs and effort. Hence, selecting the right network is deemed a critical decision. Multiple shortest path algorithms could be deployed to identify the optimal solution. Although they ...
Abstract: An ideal Design-Construction Interface is assumed in the decision making process of initiation and planning. The uniqueness, site conditions and contingencies cannot be envisaged and incorporated in its entirety in all projects. Constructability in resonance to the appropriate technology becomes paramount in deciding the material, structural forms and construction methodology. ...
Abstract: Falls are the leading cause of construction site accidents and made up more than 60 percent of all construction-related deaths in 2018, according to the Korea Occupational Health and Safety Administration (KOSHA). Accordingly, the government conducts intensive management and supervision of scaffolding and scaffolding installation at small sites while inducing ...
Abstract: Traditional project delivery methods are inflexible for projects that require a high level of collaboration among project teams as well as present challenges to innovative design and construction approaches. In today's era, projects are executed at a faster pace at the early stages of scope definition. This causes a high ...
Abstract: The following paper is discussing the potential excavation systems and development of the production tool system of a small-scale mining robot. The limitations of power and weight increase the complexity of the design of the production tools immensely. Each excavation method's efficiency is depending on the material to be excavated, ...
Abstract: Transportation is one of the major contributors in global energy consumption and greenhouse gas emissions. Currently, there are approximately 1.32 billion on-road vehicles around the world, which is expected to be doubled by 2040. This increase has triggered deep concerns over the global issues of climate change and sustainable development. ...
Abstract: Automation of cranes can have a direct impact on the productivity of construction projects. In this paper, we focus on the control of one of the most used cranes, the boom crane. Tower cranes and overhead cranes have been widely studied in the literature, whereas the control of boom cranes ...
Abstract: Path planning, as a primary mission in crane lift planning, has a profound and direct impact on the safe and efficient execution of lift jobs on construction sites. Typically, the main objective of path planning is to find the shortest (or a relatively short) and collision-free path from the load ...
Abstract: Recently, it began the spread of bulldozers using information technology during controlling the machine to increase the efficiency of the entire execution of work, including avoiding the usually necessary final surface treatment. Blade control mechatronic system for leveling work of bulldozer blade enables the bulldozer to effectively perform a ground ...
Abstract: Equipment selection for a construction project is a complex decision making task that impacts the project cost significantly. The literature highlights the increasing focus of recent studies on tower crane (TC) optimization, largely due to the shift from horizontal to vertical construction. Many studies tend to select a single TC ...
Abstract: This research presents the design framework of the artificial intelligent algorithm for an automated building management system. The AI system uses wireless sensor data or IoT (Internet of Things) and user's feedback together. The wireless sensors collect data such as temperature (indoor and outdoor), humidity, light, user occupancy of the ...
Abstract: This paper proposes an IoT-enabled network of low-cost sensors that are co-located for construction site monitoring. The network performance enhancement is achieved via its system dependability in terms of improved availability, integrity, reliability, maintainability, security and safety in real-time monitoring of environment parameters. The sensor motes of various sensing modules ...
Abstract: Cybersecurity threats related to new technologies get little attention until an incident occurs, and vulnerabilities are highlighted. In the case of construction projects, any cyber breach, either malicious or incidental, has the potential to cause significant damage. This varies from unauthorized access of sensitive project information to hijacking construction equipment ...
Abstract: Recently, as technologies combine, AR (Augmen ted Reality)/VR(Virtual Reality)/MR(Mixed Reality) and advanced sensing equipment are being developed. The possibilities of their application to construction fields is likewise increasing. Research into applying these techniques to facility maintenance, manager training, and safety/evacuation training is being actively conducted. In the case of the ...
Abstract: Application of technologies as laser scanning, remote sensors, drones or mobile applications are playing a major role in changing the management procedures of maintenance and operation activities in the roads. Without scarifying the quality of the data, tasks can be performed in less time while maintaining the same level of ...
Abstract: The growth in the size and the level of complexity of construction equipment imposes tremendous hazards in construction sites. Any breakdown or failure of such systems may not only cause the delay in construction but also lead to the loss of life and properties. To address these issues, this paper ...
Abstract: Deterioration models significantly contribute to increasing the efficiency of life-cycle planning for highway assets. Therefore, asset managers strive to maximize the accuracy of such models and intensify the efficacy of the life-cycle plan. Even though nearby assets have been thought to have an impact on each other's conditions, usually, such ...
Abstract: Steel embed plates are a vital component in connecting steel to concrete members. They are most often used in the construction of tilt-wall concrete buildings, but can be used anytime there is a need to attach steel to a concrete panel or slab. Proper anchorage and connection to concrete should ...
Abstract: This paper presents the learning outcomes of the Open InfraBIM and Construction Automation workshop in OuluZone motorsport Center, Finland, during October 2019. Totally of 45 students from the University of Oulu, the Oulu University of Applied Sciences, and the Oulu Vocational College were challenged to build the Speedway track by ...
Abstract: Considerable body of literature exits on automated site data acquisition for tracking and progress reporting of construction operations. While GPS-based solutions have been widely investigated in many studies for outdoor tracking of these operations, indoor tracking proved to be more challenging. This paper focuses on indoor material localization and investigates ...
Abstract: In order to teleoperate excavators remotely, human operators need accurate information of the robot workspace to carry out manipulation tasks accurately and efficiently. Current visualization methods only allow for limited depth perception and situational awareness for the human operator, leading to high cognitive load when operating the robot in confined ...
Abstract: Automation for retrieving relevant contents without human interventions has been considered as an essential task in the construction industry. Computer vision has grasped attention to be employed for providing rich data from the surrounding environment and automation of such critical tasks. Nonetheless, various challenges, including the detection of complicated and ...
Abstract: Construction robots have drawn attention in research and practice for decades. Considering most of the construction robots are not fully automated and humans are always involved in the construction process, how humans and robots collaborate has a great impact on the total productivity. Unlike collaboration systems between human-human, human-device and ...
Abstract: The majority of fatalities and traumatic injuries in heavy industries involve mobile plant and vehicles, often resulting from a lapse of attention or communication. Existing approaches to hazard identification include the use of human spotters, passive reversing cameras, non-differentiating proximity sensors and tag based systems. These approaches either suffer from ...
Abstract: Building assets surveys are cost and time demanding and the majority of current methods still rely on manual procedures. New technologies could be used to support this task. The exploitation of Artificial Intelligence (AI) for the automatic interpretation of data is spreading throughout various application fields. However, a challenge with ...
Abstract: Workers in a construction site may be exposed various hazards and risks and may work with excessive demands beyond their physical abilities. It is important for construction companies to sustain a workforce in the work environment that does not sacrifice worker safety and health and maintains the required productivity. The ...
Abstract: With the development of the construction industry, many problems such as human safety are remaining unsolved. The construction holds the worst safety record compared to other industrial sectors, approximately 88% of accidents are related to workers' safety. The high complexity of the construction site compare to the ordinary living environment ...
Abstract: Accurate information on workers' behavior is important for safety and productivity management on construction sites. In recent years, some methods for estimating construction workers' behavior using sensing data have been proposed to collect the data based on scientific evidence. Due to the limitations of previously proposed methods that usually relied ...
Abstract: Learning by doing creates a marked impact on a trainee's cognitive ability. Technologies such as Virtual Reality (VR), Augmented Reality (AR) etc. aid in developing platforms to enhance the learning experience of users. These technologies can be particularly effective in construction sites which are complex and contain hazards difficult to ...
Abstract: In 2014, a regular inspection of public infrastructure facilities (bridges, etc.) once every five years be-came a legal system. Of the approximately 730,000 bridges nationwide, 530,000 are small-scale bridges with a bridge length of 2-15m. These bridges are often not easily accessible by inspection engineers. Therefore, in this study, for ...
Abstract: In order to ensure the safety of construction workers during the construction process, supervision of violations of safety regulations and control of hazardous situations not recognized by the workers are continuously required. However, due to the dynamic nature of the construction site, the hazardous situation is always changing and there ...
Abstract: In the UK, the railing sector has a large number of ageing masonry bridges that need to be examined every year. The traditional inspection regime consists of visual observation with manually recording the defect information observed on the structure. Previous studies have shown that this method of inspection is not ...
Abstract: In typical heavy industrial construction projects, scaffolding can account for 30% to 40% of the total direct manhours. However, most industrial contractors estimate scaffolding manpower based on a certain percentage of the direct work, which leads to cost increase and schedule delay due to inaccurate estimation. In order to aid ...
Abstract: Concrete bridges are important infrastructures, which thus need effective rehabilitation to maintain good condition. Bridge rehabilitation projects often have tight schedules, multiple participants and constraints, and scattered project information. Thus, improving information integration in these projects can be critical. This research develops a concrete bridge rehabilitation project management ontology (CBRPMO) ...
Abstract: Real-time monitoring of the condition of equipment enhances effective decision-making in terms of machine maintenance and operational efficiency. This study presents a multi-layered system architecture to monitor the real-time health of a sensor-integrated hand-tool. The architecture is designed based on specific components, features, and requirements of each layer. The study ...
Abstract: During the early phases of building design, the architects create many variants and make important decisions about different design aspects and details mostly based on their own experience and know-how. In order to reduce the risks brought by arbitrary decisions, a lot of effort was put into developing simulation tools. ...
Abstract: Construction Site Layout Planning (SLP) is one among the processes that consider decision-making as essential to achieving the desired project performance. In lack of decision support system (DSS), the project planners employ learnings from experience to make decisions that often lead to sub-optimal planning of site, resulting in congestion, safety ...
Abstract: Reusing of the past information and lessons learned helps practitioners in better management of various aspects of construction projects, such as cost estimation, planning, contracting, and design. Measuring the similarity of construction projects improves the efficiency of the existing information systems in retrieval of relevant cases. It was hypothesized that ...
Abstract: Wildfires pose a big threat to human life and property safety. Previous studies on wildfire risk management focused mainly on understanding wildfire behaviour through computer simulations. Effective wildfire risk management also largely depends on the evacuation performance success. Computational tools tend to be the best approach for simulating wildfire evacuation ...
Abstract: Three-dimensional (3D) measurement that captures the state of construction sites is key to promoting ICT-supported construction processes. Structure-from-Motion (SfM) and Multi-View Stereo photogrammetry are the best solutions for small and mid-sized construction companies due to their high portability and low cost. However, efficient creation of high-quality 3D dense models using ...
Abstract: We have been and are doing development and research on construction AI system based on Actor- Critic framework. This paper discusses cyber agents who are computerized agents of mobile entities, which are composed of construction machines, vehicles and workers. Each of the cyber agents would carry with simple function to ...
Abstract: For earthwork, whether or not it will be possible to automatically generate a work plan for construction machinery has become the key to realizing autonomous construction of earthworks. The use of AI is being sought by some researchers for the automatic generation of construction setups. Efforts are being made to utilize ...
Abstract: Studies have shown that early design finalization is important for projects utilizing Off-site Prefabrication and final assembly on site. Freezing engineering design at an early stage has various advantages such as streamlined manufacturing and timely transportation to site as well as timely deployment of adequate resources on site for assembly. ...
Abstract: Modular Integrated Construction (MiC) is an advanced type of modular construction focusing on addressing high-density high-rise buildings and is adopted as a new policy initiative in Hong Kong. Previous studies have examined the potential for using different methods and technologies to support project delivery in offsite and modular construction. However, ...
Abstract: Remicon, an important material constituting the structure of a building, needs an efficient quality management system throughout the entire process from production to delivery, including production management, shipment-transport management, and delivery management, to ensure the required performance by the contractor. Nowadays Remicon factories becoming smart factories and automated form for ...
Abstract: Lending inspiration from the manufacturing industry, industrialized house-builders have adopted some of its characteristics such as high standardization of configurable products and manufacturing processes. Standardization of product and information flow within industrialized house-building has shown to beneficially increase offsite manufacturing efficiency. They have however not been able to transfer the ...
Abstract: IIn the construction industry, there is often a need to identify and localize assets and activities on the jobsite to assess and improve the performance of their associated processes. Traditional methods for monitoring construction activities are costly and time-consuming. Excavators and dump trucks are among the most common assets used ...
Abstract: The construction industry has insufficient utilization of standard work and workload. Generally, scheduling for construction projects follows the common sense of the industry. The sequencing of activity and its duration estimation is highly dependent on the experience of the experts who are assigning them to the project, and it is ...
Abstract: The construction industry has been forever blighted by delay and disruption. To address this problem, this study proposes the Fitzsimmons Method (FM method) to improve the scheduling performance of activities on the Critical Path before the project execution. The proposed FM method integrates Bayesian Networks to estimate the conditional probability ...
Abstract: Although execution is generally the phase during which challenges faced by the construction industry become apparent, it only represents the tip of the iceberg. Execution depends on the effectiveness of construction planning and control ? an area identified by researchers as in need of improvement. Production Strategy is a fundamental ...
Abstract: A majority of safety accidents in construction workplaces stem from workers' unsafe behaviors. Such unsafe behaviors are often caused by "risk habituation," the tendency to underestimate a risk after previous repeated exposure to similar hazardous situations. Understanding the risk habituation process in construction is critical for intervening and preventing the ...
Abstract: Design features that form urban settings such as greenery, height of buildings, and variation in the building façade (materials, color, and proportion) are known to have effects on how people experience environments. As the urban population grows and shifts to urban settings for living (e.g., 82% of people live in ...
Abstract: Productivity and safety are in a trade-off relationship, and the improvement of the safety management system of construction sites is a pressing issue. Therefore, it is important to know and analyze information about incidents at real construction sites. However, it is difficult to gather information about these incidents from workers' ...
Abstract: An Unmanned Aerial Vehicle (UAV), equipped with a Light Detection And Ranging (LiDAR) scanner, can collect high-accuracy point cloud data of facilities in cluttered indoor environment. Recent developments in aerial robotics have demonstrated navigation through designated waypoints, yet little has been investigated on the trajectory to complete a full scan ...
Abstract: Many of Japan's bridges built during the period of high economic growth are deteriorating and require proper maintenance. However, due to the shortage of specialist in the field of civil engineering as well as the declining birthrate and aging population, the current bridge periodic inspection the proximity visual inspection and ...
Abstract: Lean construction (LC) and Building Information Modeling (BIM) support an integrated vision for short cycle plan-do-check-act cycles of planning and control in construction. However, operations control tasks, such as delivery of design information to the field, monitoring, progress evaluation and error detection are still largely manual and thus time-consuming, costly ...
Abstract: Due to limited funds, road authorities around the world are facing challenges related to bridge management and the escalating maintenance requirements of large infrastructure assets. Nowadays, many government organizations have published a variety of data to enable transparency, foster applications, and to satisfy legal obligations. Open governments data like bridge ...
Abstract: Building information modeling (BIM) is a rapidly developing technology used in the construction industry. Many construction companies have implemented BIM into their construction processes for executing various construction management tasks, including four-dimensional (4D) progress simulation and cost control. However, 4D progress simulation has not been simultaneously integrated and compared with ...
Abstract: Logistics management plays an essential role in supporting the primary activities in manufacturing industries. Similarly, in the construction industry, logistics operations are a crucial part that directly influence the construction operations. Construction operations management requires various stakeholders to collaborate through effective communication and prompt information sharing. However, logistics management in ...
Abstract: In recent years, the use of intelligent construction equipment with sensors attached to construction heavy equipment used in civil engineering earth work has become commonplace. Sensors provide a variety of information on construction equipment, and this information is used to control the cutting edge of construction equipment called machine control ...
Abstract: Data sets are often incomplete and low-quality at the end of a construction project. This creates rework or hinders opportunities to use data during future activities of the facility lifecycle (e.g. facility management, renovation, demolition). This research prototypes and evaluates a novel process to use blockchain and smart contracts in ...
Abstract: As the world witnesses the fourth industrial revolution, construction remains a newcomer that lags in its adoption of technological innovations. The information-intensive nature of the construction industry, coupled with its multidisciplinary nature, has pushed construction to enter the era of Big Data and has provided fertile ground for research on ...
Abstract: The construction industry is forecast to grow from its already impressive size to unprecedented new heights. This significant expansion, along with the increased complexity and sophistication of construction projects, has placed more pressure on construction companies to maintain their vitality and grow in the modern market. As the fourth wave ...
Abstract: As climate change increases the frequency and intensity of natural disasters, proactive disaster management is needed to reduce the damage caused by the natural disasters. Existing reports that record the scale, damage, and response of natural disasters can be used as references for proactive disaster management. However, it is labor-intensive ...
Abstract: We obtained various effects about ?Efficiency, Quality, Safety, Improving the work environment and Human resource development' through overall utilization of Information and Communication Technologies (hereinafter referred to as ICTs) in the excavation work and management at Yoneshiro-gawa River, a first-class river. At the topographic surveying stage, we used the UAV and ...
Abstract: In road maintenance, it is necessary to construct an environment that manages 3D data and maintenance information for its effectivity and efficiency. Engineers should be able to use 3D data not only for virtually reviewing the design of a facility, but also for analyzing building operations and performance. Using 3D ...
Abstract: Approximately a half century has passed since the construction of expressways in Japan, and expressways have become decrepit over the decades. In order to ensure safety and security of expressways for the next generation, expressway companies have been carrying out large-scale renewal works of bridges and tunnels (hereinafter collectively the ...
Abstract: The Ministry of Land, Infrastructure, Transport and Tourism (MLIT) is promoting the use of drones and other robots to improve the construction and management processes and improve the efficiency of infrastructure inspections, and is preparing an AI development environment that supports "human judgment." Specifically, MLIT is preparing "teaching data" which ...
Abstract: Plenty of variance lies in the development stage of a typhoon, including its location, direction, and surrounding meteorological conditions. Affected by such numerous contributing factors, it is not always easy for nowaday technology to make accurate typhoon forecasts. The experiences from the past typhoons may provide decision-makers with sufficient information ...
Abstract: Cracks are one of the significant criteria utilized for diagnosing the disintegration of solid structures. Normally, a structural designer with specific information would assess such structures by checking for breaks outwardly, outlining the aftereffects of the examination, and afterward getting ready to investigate information based on their discoveries. A review ...
Abstract: Natural disasters such as bushfires, wildfires, hurricanes, earthquakes, and floods cause significant socioeconomic losses with associated damages to communities. From 2005 to 2014, the worldwide damage caused by disasters has been more than US$1.4 trillion, with 0.7 million deaths and 1.7 billion people affected. In order to reduce the negative ...
Abstract: Payment issues are necessary in the construction industry, often manifested by high levels of arrears and long-term payment delays. An automated payment could be a solution to speed-up the payment process after successful completions. In this paper, a framework is proposed for the automated payment via Building Information Modeling (BIM), ...
Abstract: Based on case studies within the construction industry, the application of location-based construction scheduling and utilizing software-based rule checking has delivered promising research results. We first explain a path on how the lessons from existing work practices can be used in digitalizing construction processes. This includes the objective of describing ...
Abstract: At the beginning of a construction project, cost, time and quality are defined, which must be adhered to throughout the entire construction process. Compared to other industries, risk management in the construction industry is often treated negligently. Risk management is rather an additional documentation task than an effective project management ...
Abstract: In order to dramatically improve the productivity and safety of tunnel construction, we are developing a new construction production system "Shimizu Smart Tunnel". Based on the concept of "Digital Twin", it utilizes data sensing technology and information communication technology to acquire all kinds of data from people, machines and environment ...
Abstract: A long-standing problem in the field of automated reasoning is designing systems that can describe a set of actions (or a plan) that can be expected to allow the system to reach the desired goal. Artificial Intelligence (AI) techniques provide the means to generate plans and to reason with as ...
Abstract: Modern heavy machinery, including mobile cranes, are increasingly equipped with information systems in the form of head-down displays that present supportive information. Due to the physical presence of head-down displays, they are usually placed far away from operators' line of sight, thus the information is unintentionally overlooked. This paper investigated ...
Abstract: The installation of curtain wall modules (CWMs) is a risky activity carried out in the heights and often under unfavorable weather conditions. CWMs are heavy prefabricated walls that are lifted normally with bindings and cranes. High stability is needed while positioning in order not to damage the fragile CWMs. Moreover, ...
Abstract: This research presents a novel method for a data flow that synchronizes building information with the robot map and updates building components to their "as-built" states, in order to facilitate an on-site mobile construction process. Our experiments showcase mobile mapping and localization of a robotic platform featuring segmentation, plane association ...
Abstract: Recently 3D management solution utilizing BIM/CIM is expected for construction and inspection management. Especially for inspection utility, big data such as huge number of inspection pictures and sounds should be managed with location data of taking data and should be taken with high quality and resolution on 3D world. This ...
Abstract: Widespread use of autonomous robots in on-site construction has been limited because it is impractical to preprogram robots to perform quasi-repetitive tasks due to the relatively loose work tolerances and deviations of as-built work from the project design. Robotization of field construction work must thus be conceived as a collaborative ...
Abstract: Delivering energy-efficient buildings or settlements has become a popular topic amongst architects, engineers, and building engineering physicists. There are many methods for improving building energy performances, both for new build projects and for retrofitting existing buildings. However, the construction industry faces some profound challenges to satisfy the increasing demand for ...
Abstract: For thousands of years, the human construction process was mainly done by hand. In an era when automation technology is so mature, although some components of building components can be produced industrially, on-site construction and special component production still require a lot of manpower. But no matter how skilled the ...
Abstract: Exact development progress estimation has been demonstrated to be basic to the accomplishment of a structure venture. The techniques for robotized development progress estimation proposed in past examinations have certain constraints in light of fragmented informational collections. The principle target of this research was to create a precise, basically completely ...
Abstract: Boom cranes are among the most common material handling systems due to their simple design. Some boom cranes also have an auxiliary jib connected to the boom with a flexible joint to enhance the maneuverability and increase the workspace of the crane. Such boom cranes are commonly called knuckle boom ...
Abstract: The overall performance of a life-cycle phase under investigation can be improved if Multi-Design for X (MDFX) techniques design guidelines are applied concurrently. However, the complexity of selecting MDFX techniques at the conceptual and detailed design stages during machine development can increase by uncertain and imprecise knowledge about the MDFX ...
Abstract: Construction workers behaviour is important for safety, health and productivity management. Workers 3D postures are the data foundation of their behaviours. This paper established a preliminary 3D posture dataset of construction tasks and provided a 3D posture estimation method based on 2D joint locations. The results showed that the method ...
Abstract: Real-time activity monitoring is becoming one of the most significant technologies on construction sites because it can be applied to a variety of management problems, such as productivity formula and safety monitoring. However, current monitoring technologies are limited to recognizing postures in an ideal environment rather than dealing with the ...
Abstract: Continuous and robust process planning is contrary to the different goals of project participants in the construction business. The aim of holistic building process management must be to optimize the overall process by streamlining individual processes. Lean management methods are increasingly being used to harmonize building processes. For this purpose, ...
Abstract: Production control, especially lean construction approaches, has necessitated the needs of eliminating waste onsite. Though the collaborative methods such as Location-Based Management System (LBMS) and Last Planner System (LPS) have proven the improvement of productivities, the process of data collection has still remained manual, which could result in inaccuracy and ...
Abstract: This study was performed to identify the theoretical attribution of project type that moderates the impact of project delivery systems on cost performance. Previous studies have used direct relationship analysis to evaluate the project performance (e.g., the relationship between PDS and its cost performance, or the relationship between project type ...
Abstract: Automation and robotics offer significant potential to address some of the challenges faced by facility managers to efficiently operate and maintain indoor building environments. Previous efforts have focused on deploying mobile service robots for scheduled and periodic tasks such as monitoring, inspecting, and collecting data. Localization and navigation are two ...
Abstract: Recent advances in the development of Internet-of-Things (IoT) devices have enabled researchers to apply such on building automation systems (BAS). Especially in existing BAS, one big challenge is the diversity of communication methods. In such systems, gateways are required to connect various devices. However, while there are very few IoT-gateways ...
Abstract: The explosion of high-rise building projects has increased the awareness on the importance of the planning and management of vertical transportation systems (i.e., tower cranes, construction elevators and concrete pumps). Although researchers have made beneficial efforts in several aspects of vertical transportation systems (e.g., optimal design capacities and layouts), the ...
Abstract: Closed circuit television (CCTV) is probably one of the most important technologies that is used by municipalities in order to monitor the structural and operational condition of sewer pipes. To be useful, CCTV video footage needs to be collected according to standards, which make such an operation, time consuming especially ...
Abstract: The arrival of Building Information Modelling (BIM) platforms to the Architecture, Engineering and Construction (AEC) markets and companies has led to a significant increase in efficiency in this economy sector. However, many AEC companies try to implement BIM as a normal or incremental change or improvement in technology rather than ...
Abstract: Detection of design changes is essential for collaboration and version management in the design process of buildings. However, current detection methods based on Building Information Modeling (BIM) usually cause unreliable or meaningless results. This is because most of the current researches look at the question from a data change view, ...
Abstract: Adaptive reuse has the potential to maximize the residual utility and value of existing assets through green design methods such as selective disassembly planning. Studies in the field of selective disassembly for adaptive reuse of buildings are scarce and there is no evidence of established methodologies and/or analysis for the ...
Abstract: In road maintenance, it is necessary to construct an environment that manages three-dimensional data and maintenance information for its effectivity and efficiency. The primary objective of this research is to support road maintenance work using three-dimensional data by combining point cloud data of terrestrial laser scanning and unmanned aerial vehicles ...
Abstract: Industry foundation classes (IFC) is widely accepted as a promising standard for building information modeling (BIM). IFC data can be processed with many open toolkits such as IfcOpenShell and java standard data access interface (JSDAI), which greatly supports BIM research and technology development. However, IFC data is not intuitive and ...
Abstract: The adoption of Building Information Modelling (BIM) has influenced the traditional methods of planning, design, construction and operation of a physical asset. Organizations in Canada have adopted BIM to improve designs, foster stakeholder collaboration, and facilitate construction processes. To understand the extent of BIM adoption and implementation in the industry, ...
Abstract: A common problem when operating heavy hydraulic machines consists in low-frequency resonance phenomena that significantly limit the bandwidth of the closed loop position control. The interest in this topic is further motivated by the fact that the usage of traditional dynamic models of hydraulic actuators usually leads to the identification ...
Abstract: Modularization in construction involves erection of large and heavy prefabricated modules at the job site. Modules, especially in industrial plants, are required to be lifted without any tilted angles vertically and horizontally to prevent applying bending moments to the lifting lugs and structural components. Configuration of rigging elements, which are ...
Abstract: As construction projects become larger and more complex and the amount of information increases, the necessity of introducing BIM becomes bigger and the importance of BIM-based drawing extraction is also increasing. In particular, the construction document (CD) stage draws and documents the subjects determined from the project planning stage so ...
Abstract: Automated construction involves complex interactions between machines and humans. Unless all possible scenarios involving construction and equipment are carefully evaluated, it may lead to failure of the structure or may cause severe accidents. Hence monitoring of automated construction is very important and sensors should be deployed for obtaining information about ...
Abstract: Digitization and automation in construction are increasing particularly due to the establishment of Building Information Modelling (BIM). The models of BIM contain geometric as well as semantic information. The level of abstraction ranges from coarse models up to detailed modeled technical components of the buildings. So far, BIM has been ...
Abstract: IoT based platforms are enhancing decision-making capabilities in many sectors. The impact of IoT in construction has not been significant because of the unstructured nature of the process and the project-based approach to construction. Further, the technology platforms available today do not support high data flow from distributed locations as ...
Abstract: Machine Learning Algorithms (ML) offer a high potential with low manual effort to discover appropriate energy efficiency measures for buildings. Although many building automation systems (BAS) record a high amount of data, technical systems such as boilers provide only a few data points per building. However, machine-learning algorithms require training ...
Abstract: The worlds population is aging at an unprecedented pace. Aging society is not only a severe crisis in the developed world such as Germany and Japan, but also a rigorous challenge in emerging economies such as China. Many age-related diseases are fostered by the lack of physical, cognitive, and social ...
Abstract: To increase the energy efficiency of building energy systems, many control strategies have been investigated in recent years. Researchers apply control strategies to different building energy systems in order to evaluate their performance. However, the scientific community lacks a commonly accepted reference building model and evaluation criteria. In this paper, we ...
Abstract: A common problem when operating heavy hydraulic machines consists in the inability of performing accurate motion. In the last few years the development of non-linear control techniques and the production of increasingly more accurate and cheaper hydraulic drives induced a steadily growing interest towards the development of controlled hydraulic systems. ...
Abstract: We present a roadmap for guiding public officials on establishing platforms for citizen empowerment in the smart city. The proposed roadmap is not a technical architecture. Rather, a set of paradigms, guidelines and references to advanced technology approaches that can support building a technical architecture. We start from the perspective ...
Abstract: Infrared Thermography (IRT) is a widely used non-destructive method for energy audits. However, plenty of research indicates that the performance of passive thermography is influenced by the method of data collection. Unmanned Aircraft Systems (UAS) has been successfully employed for conducting RGB photogrammetry, but the data collected from an infrared ...
Abstract: Interest in integrating E-construction in highway construction projects has increased in recent years due to reductions in staffing and resources across Departments of Transportation (DOTs) and initiatives from the Federal Highway Administration (FHWA). Specifically, the addition of e-construction methods offers a boost in efficiency and safety in highway resurfacing jobs. ...
Abstract: The development and implementation of risk response strategies contributes to effective risk management processes in construction organizations. Risk response strategies need to be developed and implemented as follows: first, all possible risk responses for each given risk event of a project are identified; next, each risk response is evaluated to ...
Abstract: Statistical reports point to the fact that civil infrastructure projects remain hazardous working environments. Despite the implementation of various safety procedures, the frequency and cost of work-related injuries are significant. Improvements in sensor technologies, wireless communication and processing power of computers as well as advancements in machine learning and computer ...
Abstract: Disruptive technologies offer avenues to significantly improve the performance of construction project delivery. While the construction industry is often labeled as conservative and unimaginative with regard to technology adoption, significant strides have been made in recent years specifically, the use of Building Information Modeling (BIM) for information storage, distribution ...
Abstract: This research aims to explore the effectiveness of chatbot system for highly-complex data management. With the growing popularity of mobile devices, the conversational information technology (IT) service, such as chatbot, has permeated into our daily life. Conversation-based systems are now widely utilized for helping the user to access the data ...
Abstract: Safety improvement in construction remains a high priority due to the significant rate of accidents compared to other industries. Despite the ongoing multitude of safety studies and policy recommendations concerning the high rate of injuries and casualties in construction, the extent of damage sustained is still significant. Major research studies ...
Abstract: With the emergence of 3D technologies in a recent decade, BIM software makes it easy to detect those conflicts in the early stage of a project. Clash detection in BIM software is now a common task. Among those conflicts found by BIM software, however, a relatively high percentage belongs to ...
Abstract: The retrieval of as-is information for existing buildings is a prerequisite for effectively operating facilities, through the creation or updating of Building/Asset Information Models (BIM/AIM), or Digital Twins. At present, many studies focus on the capture of geometry for the modelling of primary components, overlooking the fact that many recurring ...
Abstract: Managing digital information in construction is commonly described through Building Information Modelling (BIM), which advocates seamless chains of information, increased coordination between different actors and a life-cycle perspective on information management. However, low adoption outside the design phase entails that handling information in production is in many cases manual and ...
Abstract: Kinetic facades are dynamic building surfaces that manage light, ventilation, energy, or information. The programming of Kinetic facades require a vast technical expertise of building systems, materials and computer devices and constant alteration of models to examine till the desire purpose of the kinetic façade is achieved. There heavy dependence ...
Abstract: Today, with the development of technology, various buildings can be constructed in the field of architecture, and the size and complexity of construction are increasing, and the life cycle of buildings is also increasing. As a result, the importance of technology and systems that can maintain and manage not only ...
Abstract: It is known that process simulation is a feasible solution to deal with real-world complexities and problems. Civil infrastructure in particular, is a complex system that can benefit from process simulation. This paper provides a critical overview of different simulation modelling paradigms used in construction to achieve better system performance. ...
Abstract: Site layout planning (SLP) is categorized as a non-deterministic polynomial time (NP) hard or complete class problem. Inefficient SLP can lead to congestion, safety conflicts and productivity reductions. Significant attention to the problem is evident in the field of construction management. A number of optimization routines and mathematical models are ...
Abstract: This paper aims to propose an approach to inferring relevant BIM objects using techniques for recognition of design attributes and calculation of visual similarity using a deep convolutional neural network. Main objective is a visual-input based modelling approach to the automated building and interior design, and this paper represents a ...
Abstract: Indoor environment monitor and control are important aspects of reducing building energy consumption and maintaining occupants visual and thermal comforts. Previous research showed that the lots of buildings were not able to provide designed service level in the daily operation and the feedback from occupants showed that the predetermined service ...
Abstract: This paper presents an approach to classifying spatial categories of space objects using their textual properties in IFC data. As a standardized data format of building information, IFC enhances the data interoperability between the heterogeneous domain software. However, there are some problems that required information is omitted due to the ...
Abstract: Commissioning (Cx) of heating, ventilating, air conditioning (HVAC) systems has emerged as an effective sustainable practice to ensure high performance of these systems during operation. According to a DOE report, HVAC systems used 62% of the energy consumed by buildings in the US in 2011. It was also reported that ...
Abstract: Consistently updating, analyzing, and managing construction-related information is one of the key success factors in project management. Quite a few construction projects have recently started to utilize instant messaging (IM) applications such as Slack, WhatsApp, and WeChat as a communication channel among project participants to share daily construction information due ...
Abstract: Conventional demolition approaches of razing a building at the end of its life-cycle generate a large amount of mingled debris, which is difficult to reuse and recycle. Compared to demolition, deconstruction involves disassembling a building systematically and it is a more environmentally friendly alternative. Recent research studies have focused on ...
Abstract: Large construction projects generate thousands of documents that require a careful management. The classification of documents is an important step in document management and control. Construction documents are generated in different formats, many of which are unstructured and contain drawings and images, which makes the task of document classification and ...
Abstract: Emergency management can benefit from advanced information and communication technology (ICT), since it can support officers in charge of emergency management to deal with urgent decision within a really short deadline. Further enhancement can derive from the application of holonic systems, which typically deal with the unexpected. In fact, unexpected ...
Abstract: Robot assisted construction processes in the architectural domain which include assembly are uncommon due the size difference of the robot with respect the scale of the output. In order to extend the workspace of industrial robots, these can be mounted on top of a mobile platform. However industrial mobile robotics ...
Abstract: Safety in the construction industry remains a major challenge despite the technological advancements made in recent years. In recent years, ontologies are applied to give a formal structure to the knowledge in different domains. Ontologies also facilitate the integration of various domain knowledge and thus allow for better cross-functional developments ...
Abstract: An essential component of effective safety management systems is the identification and proactive mitigation of hazards through the completion of job hazard assessment (JHA). Aimed at identifying potential hazards and subsequently implementing controls that reduce the likelihood or severity of incidents, JHA is a manual process influenced by the experiences, ...
Abstract: Proactive approaches designed to prevent incidents before they occur are essential for achieving effective safety management. Emerging as an important component of proactive safety management, leading indicators are used to assess and control safety performance. With the aim of reducing the number or severity of worksite accidents, methods capable of ...
Abstract: Media age has seen a huge amount of data flowing in from all directions, be it online news sources, social media, technical documents, and many more. There is a huge scope of these data sources for utilization in the transportation sector that can potentially improve the current practice of transportation ...
Abstract: Although minor overflows do not cause a huge amount of loss; as the number of such overflows increases, the amount of water wasted, and the compound consequent challenges become considerable. Therefore, detecting overflows, investigating their cause root and resolving them in a timely manner are among new needs for infrastructure ...
Abstract: Reusing knowledge from past projects is a critical task in construction, given the increasing complexity in such projects: numerous stakeholders, a multi-disciplinary domain, and multi-objectives besides the traditional ones such as cost and schedule. Unstructured data, such as progress reports and minutes, is a rich source of knowledge that can ...
Abstract: The characteristics of dynamic construction sites increase the difficulty of collecting the high-quality geometric data necessary to achieve construction management activities. This paper introduces a new autonomous framework for 3D geometric data collection in a dynamic cluttered environment using an unmanned ground vehicle (UGV) and an unmanned aerial vehicle (UAV). This method first deploys UAV to collect photo ...
Abstract: Well-coordinated construction site logistics are important for the efficient assembly of large-scale plants. Delays in logistics have a negative impact on assembly processes and vice versa. Incorrect storage or improper transport can lead to damage to the sensitive plant components. All relevant logistical constraints must therefore be systematically analyzed, assessed ...
Abstract: The Triple Bottom Line (TBL) framework defined by Elkington in 1998 [1] proposed three aspects of sustainability: economical, environmental and social. However, several researchers have observed that further studies are needed to guide people and companies on how to achieve sustainable development. Specifically, many gaps are found in trying to ...
Abstract: Building Information Modeling (BIM) is a methodology to digitally represent all the physical and functional characteristics of a building. Importantly, in smart buildings smart components that are enabled with sensing and actuation need to be modeled accurately within the BIM model. This data representation needs to include multiple status of ...
Abstract: Semantic segmentation of closed-circuit television (CCTV) images can facilitate automatic severity assessment of sewer pipe defects by assigning defect labels to each pixel in the image, from which defect types, locations and geometric information can be obtained. In this study, a deep convolutional neural network (CNN), namely DilaSeg, is developed ...
Abstract: In this study, we propose information exchange process for the effective integration of building information modeling (BIM) into an augmented reality (AR)-based smart facilities maintenance (SFM) system. The proposed SFM system refers to a system that combines technologies such as AR and IoT sensors in the field maintenance work. This ...
Abstract: On a construction site, progress deviations can cause fatal damages to the project and stakeholders. Therefore, accurately monitoring and managing the construction environment is essential. Efficiently detecting and recognizing the changes will be the key factor for monitor and management goals. In this research, we present a framework for detecting ...
Abstract: Indoor localization and navigation of unmanned aerial vehicles (UAVs) is a critical function for autonomous flight and automated visual inspection of construction elements in continuously changing construction environments. The key challenge for indoor localization and navigation is that the global positioning system (GPS) signal is not sufficiently reliable for state ...
Abstract: Recently, the integration of Building Information Modeling (BIM) technology and Virtual and Augmented Reality (VR/AR) technologies during the operation and maintenance phase has been increasingly adopted. There has also been a surge of interest in the exploitation of Internet of Things (IoT) for constructed facilities, in the form of ...
Abstract: Images acquired by UAV can be analyzed for resource management on construction sites. However, analyzing the construction site images acquired by UAV is difficult due to the characteristics of UAV images and construction site images. This paper proposes an image augmentation method to improve the performance of an object detection ...
Abstract: The modular construction technique is the one key technology that can substantially advance the competitiveness of the construction industry. However, the industry is having difficulty creating an optimum environment for broader and more effective use of modularization due to one key barrier: implementing a modular construction technique, that is, shipping ...
Abstract: In the Japanese construction industry, it is predicted that during the next ten years, more than a million veteran technicians will retire, and a sudden shortage of experienced technicians will be inevitable. One way of countering this problem now being considered is the use of robotics technology to support inexperienced ...
Abstract: The application of robotics in the construction industry has been growing recently. However, it suffers from the lack of construction dedicated systems. The industry is characterised largely by designers and researchers scrambling to adapt systems from other industries and trying to apply them to the construction industry. In the application ...
Abstract: Crane operators fatigue is one of the significant constraints should be monitored. Otherwise, it may lead to inefficient crane operations and safety issues. Recently, many deep neural networks have been developed for fatigue monitoring of vehicle drivers by processing the image or video data. However, the challenge is to distinguish ...
Abstract: As modular construction becomes popular, an increasing number of products are prefabricated in an offsite construction environment. While improving the productivity and efficiency of construction-oriented production, it also raises the complexity of process planning. Although the specifications of a product are fully defined by Building Information Models (BIM), no information ...
Abstract: Microbial corrosion of concrete is a severe problem that significantly reduces the service life of underground sewers in countries around the globe. Therefore, water utilities are actively looking for in-situ sensors that can quantify the biologically induced concrete corrosion levels, in order to carry out preventive maintenance before any catastrophic failures. As a solution, this paper ...
Abstract: Construction monitoring plays a vital role in modular construction practice, since faulty installation of individual parts could incur significant delays and extra cost to the project, modular construction eagerly requires a real time progress monitoring. Previous researchers tended to get as-built site data back at first, like making cloud points ...
Abstract: This paper details the development of an open-source eye- and gaze-tracking mechanism designed for open, scalable, and decentralized Active and Assisted Living (AAL) ecosystems built on Wireless Sensor and Actuator Networks (WSANs). Said mechanism is deliberately conceived as yet another service-feature in an on-going implementation of an extended intelligent built-environment ...
Abstract: Various image-based building object recognition approaches have been developed to create as-is Building Information Models (BIMs) of existing buildings. However, existing approaches generally rely on human-designed features to automatically or semi-automatically recognize building objects, which makes them sensitive to input images and difficult to extend to new building objects. Furthermore, ...
Abstract: With increased computing power to render 3D models and affordability of as-built data acquisition technologies, new techniques for enhancing the quality of pre-project planning of adaptive reuse projects can be investigated. The main objective of this research is to present a decision making methodology to select the optimum effort using ...
Abstract: Building Information Modeling (BIM) covers the whole lifecycle of a building and facilitates the coordination of activities in the design, construction, and operation stages. However, during the design stages of pre-construction, it is time-consuming for a BIM project team to resolve design clashes as they integrate models finished by individual ...
Abstract: Automation in construction manufacturing is becoming increasingly common due to the drive for higher productivity and increased quality. One important consideration in the implementation of automation is the training and maintenance of the equipment. This study proposes an approach to assess the training for assembly/disassembly and maintenance of machines developed ...
Abstract: Rebar engineering is a construction method for building structures that is critical to the earthquake resistance of the entire building. The construction process and quality of rebar have always been valued by the construction industry, and it is imperative to improve the quality of reinforcement construction to reduce injuries. In ...
Abstract: Currently, numerous approaches to Indoor Positioning Systems (IPSs), such as RSSI (Received Signal Strength Indication), fingerprint, PDR (Pedestrian Dead-Reckoning), and image recognition, have been developed. But each individual positioning method has unique drawbacks. In this study, we provide an IPS with a novel combined positioning method that applies Building Information ...
Abstract: This study describes a simple head mounted display(HMD) viewing system for an unmanned construction system(UCS) and an assessment of the work efficiency using the HMD system. The deployment of a UCS is a significant problem because majority of the construction machines are not compatible with remote operation. In this study, focusing ...
Abstract: Governments are always looking to monitor safety violations on construction sites. Those violations are not only causing numerous injuries and deaths to workers but also delays and subsequently costs to the project developers. In the hierarchy of control, personal protective equipment (PPE), albeit the least effective, is still one of ...
Abstract: Achieving high energy-efficient building designs requires conducting energy analyses iteratively starting from the conceptual stage to ensure suitable selection of building components to meet energy performance requirements. In recent years, advanced BIM capabilities have allowed designers to assimilate design and energy modeling processes geared towards improving productivity. However, there are ...
Abstract: The overall performance of a life-cycle phase under investigation can be improved if Multi-Design for X (MDFX) techniques design guidelines are applied concurrently. However, the complexity of selecting MDFX techniques at the conceptual and detailed design stages during machine development can increase by uncertain and imprecise knowledge about the MDFX ...
Abstract: LiDAR (Light Detection and Ranging) emerges as a mapping technology that provides fast, accurate, and reliable data with geometric representation of construction facilities. The technology has received high recognition especially since the importance of digital transformation in construction projects has been emphasized. However, the current state of 3D technologies including ...
Abstract: The design of rebar in reinforced concrete (RC) structures is a mandatory stage in building construction projects. Due to the large number and complicated arrangement rules of rebar in each design code, it is impractical, labor-intensive and error-prone for designers to avoid all clashes (i.e., collisions and congestion) manually or ...
Abstract: The localization of a robot is a crucial part of any task that involves the mobile manipulation of objects. The precise repositioning of a mobile robot within the workspace is particularly important for on-site construction in situations where the operating area is much larger than the reach of the robot ...
Abstract: Selection of appropriate project delivery system is key for project success. It also gains much importance in a fast developing economy like India where there is a greater emphasis on development of housing and infrastructure involving huge investments. The present practices of project delivery led to inefficiency and distrust among ...
Abstract: The consumption of fossil fuels by on-road vehicles is a main source of air pollution specifically greenhouse gases (GHGs) worldwide. The construction industry, due to the use of a large number of heavy-duty equipment including haulage trucks, contributes to a significant amount of fuel consumption and consequent emissions production. Due ...
Abstract: Importance has been placed on improving productivity at construction sites in a recent year, reducing bitterness and repetitive work, and improving the e?ciency of inspec- tion and management work. Since buildings usually have a unique shape, e?ciency improvement methods used in mass production plants had not been able to be ...
Abstract: Injuries and fatalities resulting from workplace accidents remain a global concern within the construction industry. While education and training of personnel offer well known approaches for establishing a safe work environment, Serious Games in Virtual Reality (VR) is being increasingly investigated as a complementary approach for learning. They yet have ...
Abstract: It is well documented that Building Information Modeling (BIM) can significantly improve project performance and productivity. Although the construction phase typically involves in the largest part of financial cost during the project life, insufficient attention has been paid in academia to quantitatively address the impact of BIM on labor productivity. ...
Abstract: Simultaneous evacuation is the most widely used evacuation strategy in buildings. However, there are other evacuation strategies that might lead to safer outcomes if selected appropriately. Different forms of evacuation result from applying time delays to phased evacuation or altering path planning. The best strategy for evacuation depends on the ...
Abstract: This paper presents the initial planning phase results of excavator automation in the SmartBooms research project funded by Business Finland. Automation control is a key factor for the earth construction industry. Automation of excavators enables increased productivity and accurate adjustment of the digging work process, especially in depth control, which ...
Abstract: In a dynamic construction site, sound generated by work activities and equipment operations is one of vital field data indicating construction progress, work performance, and safety issues. However, because of an enormous number of construction work types, accurate sound classification is currently limited. To address this challenge, this study proposes ...
Abstract: Drawbacks of the absence of the flow view in the conventional construction logistics planning gain more attention. Inefficiency and wastes (e.g., on-site overstock) in the construction logistics caused by adopting an avoidance strategy is recognized. Meanwhile, the unstable labour productivity and periodic planning method cause difficulties for adopting Just-in-Time (JIT) ...
Abstract: The integration of design and construction processes remains, after decades of dedicated research, a great challenge. Even considering the specific context of pre-fabrication and modularization, it was just in recent years, with increasing adoption of Building Information Modeling (BIM) processes, that the challenge, albeit in a virtual environment, begins to ...
Abstract: Recent research efforts have shown that human thermophysiological features could play a crucial role in inferring occupants thermal comfort, which is required for comfort-aware heating, ventilation, and air conditioning (HVAC) operation. Our previous studies have demonstrated that variations of respiration, a representative human thermophysiological feature, can be non-intrusively quantified by ...
Abstract: Automation of the code compliance checking has been explored extensively, particularly in recent years with the emergence of building information modelling (BIM). Still, automated code compliance checking has not yet been fully realized, as there is no standardized method for rule interpretation and building model preparation for code compliance. Manual ...
Abstract: Schedule assessment models were created to ensure the proper development of a schedule. The checks can be categorized into scheduling-related and constructability reviews. Most of the existing automated models are targeted towards two-dimensional schedules, and not nth-dimensional, despite the emergence of building information modelling in the construction industry. The ...
Abstract: Architectural, Engineering, Construction (AEC) and Facility Management (FM) industry rely on varied expertise to achieve a highly successful project. The industry professionals in these fields require greater level of collaboration in managing the expectation of a project success. When every individual in the team uses different BIM software, it becomes ...
Abstract: During construction, digital terrain models based on images from unmanned aerial vehicles (UAVs) are useful, as they rapidly provide data for objective volume calculations that can be used to monitor in-progress earthworks. As many curved objects are present on construction sites and as construction materials and equipment can provide partial ...
Abstract: The construction industry has been suffering from both low labor productivity growth and safety issues, due to the increasing project site complexities and the lack of skilled labors. As a potential technical solution, Augmented Reality (AR) has been studied to reduce the cognitive workloads in construction job sites by visualizing task-related information in the direct context ...
Abstract: Over the last few decades, the investments in more complicated construction projects, involving multiple disciplines and different teams, have increased the need for more complex communication means. The purpose of communication methods is to ensure higher levels of coordination between project participants (owners, architects, engineers, contractors, suppliers, etc.). Adequate communication ...
Abstract: The type and quantities of formwork system are necessary information for construction process of a concrete-framed building and the solution to this problem usually lays on the shoulders of specialized consulting firms or contractor's engineering department. These calculations are generally performed using available procedures and guidelines. The conventional formwork design ...
Abstract: Construction sites require many efforts to be well organized due to the complicated tasks and various construction machines. Recently, computer vision technology has gained success in the construction research field. By deploying single or multiple cameras, we can extract construction information from videos and then help the project manager to ...
Abstract: Laser scanning-based techniques have been applied for checking the dimensional tolerances of concrete elements. Several studies utilized Terrestrial Laser Scanning (TLS) for measuring concrete floor waviness. The results of those efforts have shown that accurate floor waviness information can be obtained using TLS. Unmanned Aerial Vehicles (UAVs) mounted with cameras ...
Abstract: Remote building information modeling (BIM) model review collaboration is the trend in the architecture, engineering, and construction (AEC) industry. Virtual communication environment is a key factor in a successful collaboration. However, the proper environment has yet to be fully revealed. Therefore, this study aims to identify the effective environment. We ...
Abstract: Many project managers and researchers have emphasized the importance of considering uncertainty in the scheduling of EPC projects, and perform stochastic analysis when preparing a schedule to reflect uncertainties of duration for project activities. In this case, the uncertainty of the individual activity duration is treated as probabilistic variables, and ...
Abstract: In the operations and maintenance (O&M) stage of a building, thermal comfort and acoustic comfort are essential for the health and productivity of occupants. There are many complaints about the indoor human comfort in office buildings due to inappropriate indoor temperature or noise. Building information modeling (BIM) technology is an ...
Abstract: A vehicle-mounted video camera, which is one of low-cost off-the-shelf devices, can be used economically for pavement crack monitoring. The pavement frames obtained by the video camera can be merged to form a mosaic image, from which road distress information can be extracted. However, quality of crack detection in the ...
Abstract: This paper is sharing an on-going project about the design of a software package, tentatively coined as RS4B, for the builders of modularized construction. The shortage of labour resources and safety awareness issues have become the emerging problems in the construction industry. As the price of robots gradually decreases within ...
Abstract: Crane simulations are necessary for selecting a proper type of crane for an erection task in a construction project. However, simulating the motion of a specific crane is hardly realized because modelling a specific crane is complex. Thus, by taking advantage of a robot arm with multiple degrees of freedom, ...
Abstract: The purpose of this paper is to classify the level of formation of the bid price by using the type of uncertainty inherent in the bid document as a variable. To this end, the research examined the factors of the project related to the bid price presented in the previous ...
Abstract: A construction contract facilitates payments through the supply chain by integrating people, activities, and events throughout the project period through obligations, permissions, and prohibitions in its terms and conditions. The management of payments is a manual process and is more difficult in the case of construction projects as different stakeholders ...
Abstract: This paper proposes a cloud-based data management framework that integrates open data from the government and monitoring data from construction site sensors. The integrated data can be consumed by artificial intelligence for smart construction project management, e.g. schedule control, resource arrangement and workers safety. The framework includes two major parts: ...
Abstract: Thanks to the digital representations provided through Building Information Modeling (BIM), successful adoption of emerging digital technologies have been increasingly reported within the constriction and facility management research community. On the other hand, the number of research studies exploiting the principles of the Internet of Things (IoT) to enhance automation ...
Abstract: Preventing natural disasters from causing substantial social-economic damages relies heavily on the disaster resilience of the nations critical infrastructure. According to the National Academy of Sciences, research on understanding and analyzing the disaster resilience of our infrastructure systems is a national imperative. To address this need, this paper proposes an ...
Abstract: In recent years, researchers have relied heavily on data (historical and real-time) and digital solutions to support informed decisions. Consequently, data analysis has become an integral part of the design and construction process. Researchers spend a tremendous amount of time cleaning, organizing, and understanding the data. Artificial Intelligence (AI) can ...
Abstract: Rebar inspection plays an essential role during construction phases to assure the safety of the construction. Usually, inspectors use 2D drawings and tape measures to inspect rebars. However, the effectiveness of the inspection is greatly hindered by indirect three-dimensional information in 2D drawings and visual obstruction of measuring by rebars, ...
Abstract: Temporary structures are used during construction and removed after construction. It is necessary to inspect these structures in terms of quality and stability in an automated manner. However, the storage and sharing of inspection data of temporary structures is a problem because most of them have not been included in ...
Abstract: Designing a building, so that it adheres to all the relevant applicable constraints imposed by construction codes to cultural preferences to the owners styles and aesthetics, can be a daunting task, requiring many laborious hours of review and modification. Given the increasing adoption of Building Information Modeling (BIM) in the ...
Abstract: The monitoring technique by combination of the measurement method with the fine precision of the sensor collecting the satellite-based information that can determine the displacement space, is available to a variety of diagnostic information. The measurement method by a GNSS with the sensors is being requested. The progress of natural ...
Abstract: Tracking and monitoring resources in construction is of great interest to an industry that is in the pursuit of continuous improvement. Real-time location sensing technology like Global Navigation Satellite Systems (GNSS) and (or in combination with) Radio Frequency Identification (RFID) have already been introduced in commercial applications to report the ...
Abstract: Efforts to integrate construction planning have thus far focused on the interoperability of models and computer applications. However, merely linking different models, e.g. design and schedule, while useful, necessarily restricts planners to an iterative improvement of plans. This research defines a single integrated mathematical model with singularity functions ...
Abstract: The application of BIM and data analytics in facility management is an area of growing interest and research. The ability to mine data from occupant complaints in real-time and visualize this at the building and building cluster scale provides new opportunities for facility managers to more effectively respond to occupant ...
Abstract: Building Information Modeling (BIM) as a new method presents a number of opportunities and challenges for the architectural, engineering and construction (AEC) industry. Obviously, there are many issues in the way of implementing BIM. Some of these issues have been largely eliminated over time and by the advancement of related ...
Abstract: Temporary construction structures (TCSs), such as formwork and scaffolding, attract a lot of attention due to their impact on the schedule and cost of construction projects. In many cases, the determination of the consumption (i.e., labor, materials, and equipment) of TCSs is a complex process subject to errors. This paper ...
Abstract: Railway infrastructure projects provide required physical and organizational facilities for transportation networks. Production flows in railway construction are complex especially when a hybrid of on - site and off - site processes is in progress. With railway projects still experiencing budget and time overruns, there is need to re-examine production ...
Abstract: Unmanned Aerial Vehicles (UAVs) have opened a wide range of opportunities and applications in different sectors including construction. Such applications include: 3D mapping from 2D images and video footage, automated site inspection, and performance monitoring. All of the above-mentioned applications perform well outdoors where GPS is quite reliable for localization ...
Abstract: The Indoor Environmental Quality (IEQ) in a building affects occupants well-being and productivity. Traditionally, models are developed to predict IEQ satisfaction from physical measurements. These approaches work fine in a laboratory environment but tend to fail in real-world applications. Recent work focuses on collecting direct human feedback on IEQ. However, ...
Abstract: Checking conformance of construction management practices to practice specifications is typically performed manually by experts in the Engineering and Construction (E&C) sector. Though conformance checking is known to increase performance of a project, this process takes considerable time as several professionals have to go through thousands of pages of documents, ...
Abstract: Masonry structures in historical sites are deteriorating due to ageing and man-made activities. Regular inspection and maintenance work is required to ensure the structural integrity of historic structures. The inspection work is typically carried out by visual inspection, which is costly and laborious, and yields to subjective results. In this ...
Abstract: In this study, a sound analysis-based detection and reporting system for accidents that occur during concrete pouring is proposed. First, the process of the existing monitoring system was examined and problems were noted, and studies and technical approaches to sound analysis were analyzed. Pouring sound samples were then collected from ...
Abstract: Facility maintenance tasks require extensive historical data and information to be stored, retrieved and managed. Although several mobile- based devices have been proposed to access the maintenance information from three -dimension (3D) building information model (BIM) environment, these devices are deficient in simultaneously updating the maintenance information both in the ...
Abstract: Building Information Modelling (BIM) and Internet-based tools are communication aids. During the product and process design phase partners must coordinate, cooperate and collaborate with stakeholders. Creative and collaborative work is necessary in order to create value for the end consumer and society and to develop smart buildings. Forth is type ...
Abstract: Despite its documented success, the use of Building Information Modelling (BIM) continues to raise questions related to its implementation at an institutional level. Therefore, several institutions have produced guidelines specific to BIM to communicate their expectations in regard to BIM in their projects. However, such guidelines do not exist among ...
Abstract: The building information modelling (BIM) approach, which is utilized to retain information in a digital format, facilitates easy information updating and transfer in the three-dimensional (3D) CAD environment. When the application of BIM models are adopted in the project, the inspection and the inspection and modification records of BIM models ...
Abstract: Field engineers take and collect several pictures from construction sites every day, and these pictures serve as records of a project. However, many of these images are loaded to and remain on computers in an unorganized manner because tagging, renaming, and organizing them is a time - consuming process. This ...
Abstract: There is a necessity to expand the supply apartment houses for the vulnerable classes. In addition, it is required to manage the assets for public rental housing to improve economic efficiency, such as improving the residential environment to prevent the surge of maintenance expenses due to deterioration. Therefore, it is ...
Abstract: Building Information Modelling (BIM) has been indicated as the right tool to provide the construction industry with the productivity boost that has been lacking in the last 40 years. This momentum finds its highest fulfilment in the support provided by BIM models to knowledge management and the automation of process. ...
Abstract: This contribution aims to increase quality level of organization applying the EFQM (European Foundation for Quality Management) excellence model. It provides analysis of current quality management trends, defines EFQM model structure a criteria and possibilities of its introduction in construction companies all over the world. The purpose of this contribution ...
Abstract: In Japan, deterioration of many tunnels and bridges have become a serious problem. Moreover, engineers that manage them are insufficient due to aging. Therefore, we developed an under-actuated hammering robot that can imitate hammering sounds of inspection workers. When we use this robot, workers can detect concrete defects by using ...
Abstract: Product development for commercial façade systems is a complex procedure. Since the Grenfell Tower disaster in London in June 2017, the import, use and sale of polyethylene core Aluminum Composite Panels (ACP) has been reduced. This encourages research on development of new façade systems using advanced production techniques such as ...
Abstract: Robotic systems are increasingly becoming a relevant factor for so-called "made to order" production, as is the case in the construction industry. The aim of this contribution is to provide a basis for a cross-disciplinary discussion on the topic of robotics in the construction industry, in which both technical issues ...
Abstract: Tracking design completeness during the early phases of complex construction projects is a vital need for project participants to measure their progress. It is also a challenge, because design completeness depends on both geometric details and engineering information related to the model. Tracking level of development (LOD) of the designed ...
Abstract: Automation of construction is urgent needs for improving efficiency of works, reducing the number of personnel, and working in extreme environments such as other planet or moon or disaster-stricken area. However, the current situation is still insufficient due to reasons of such complexity of work and high risk especially at ...
Abstract: Temporary work is about 10% of the total construction cost, and affects completeness of a building since it is directly related to the quality of building. However, BIM-based design of temporary work is used as a complement to the 2D design. Furthermore, the inspection and evaluation of temporary facility is ...
Abstract: In recent years, considerable concern has arisen over the application of Building Information Modeling (BIM). BIM has been widely utilized for solving the drawbacks of traditional preliminary cost estimation by creating a cost-estimation model. However, since the function of structural analysis and design in BIM is still in its developing ...
Abstract: This research aims to develop a knowledge base for a disaster management question-answering dialogue system. The rapid growth of the amount of data has led to the variance of data in terms of their formats, sources, and attributes. Hence, the difficulties of decision makers to accomplish their missions accurately and ...
Abstract: The marking robot has been developed for the purpose of streamlining marking operations at power plant construction sites and accelerating equipment installation work. This robot can draw line segments with accuracy of 1 mm or less on floors and walls of the construction site in cooperation with a three-dimensional measuring ...
Abstract: Off-site construction has undergone a rapid development driven by their favorable characteristics, such as fast construction, waste reduction and clean on-site environment. Nevertheless, frequent engineering changes often create unpredictable challenges for precast production planning, resulting in production delay or additional storage costs. In order to achieve the target of just-in-time ...
Abstract: More and more high-rise buildings are being erected in extensively populated countries such as China nowadays with the requirement of higher living standards. However, on the one hand, with the development of aging society, the labor shortage has become a remarkable problem; on the other hand, the danger and difficulties ...
Abstract: Retrofits of existing buildings have great potential to reduce global energy consumption and greenhouse gas emissions. Energy modeling of existing buildings, which is commonly conducted to prioritize retrofit strategies, relies on as-is building energy models (BEMs) that represent actual conditions of buildings. Recent efforts have focused on leveraging sensing technologies ...
Abstract: Apartment housebuilding takes too long time and optimal solutions are seldom found. In housebuilding projects, there is an increased popularity of using virtual models for analyses of structural integrity and floor layout. However, these analyses are seldom coordinated since the models rarely are linked and the designers are not working ...
Abstract: Adding manually thermal insulation onto an existing building is an inefficient and labor-intensive process. To avoid such manned labor on site, recent approaches have been developed for installing prefabricated modules onto existing buildings envelopes. However, the monitoring and the analysis of these approaches expose that these procedures are still time-consuming ...
Abstract: While on the one hand the BIM methodology is an essential reference for the construction of new buildings, on the other hand it is receiving particular attention and interest also from owners of large building stocks who want to take advantage of the benefits of Building Information Modelling so as ...
Abstract: This paper describes the development of an automated stand-alone application for generating 2D drawings using information from an IFC file, independent of existing BIM authoring tools. Using the application described in this paper, plan, section and elevation drawings can be extracted with no additional effort. The approach described in this ...
Abstract: The public housing construction industry in Hong Kong faces conspicuous challenges of high demands, safety, an ageing workforce, inconsistent quality and stagnant productivity. Compared to the manufacturing industry, the degree of automation in the construction sector lags behind. Based on the on-going consultancy project commissioned by the Construction Industry Council ...
Abstract: Industrialized house-builders are moving towards an enhanced product ion where management of information along the value chain is critical in order to deliver housing projects on time and with the desired quality. Today digital tools and systems are used in both design and production to produce, deliver and instruct actors ...
Abstract: The cost of the operation stage in a project life cycle is much higher than that of other stages in the building lifecycle. Efficient use of facility management can save money. However, the information of the traditional facility management cannot effectively be employed, which in turn affects the quality of ...
Abstract: Predefinitions in house-building platforms is developed as routines to manage project building information models over to production data by documents and digital drawings. Visualisation of the information flow in the industrialised house-building process is hard to track and information are often presented as islands, seldom described in the flow for ...
Abstract: Information management for Urban Facility Management (UFM) is a key enabler for a more sustainable built environment [1]. This paper presents a further development of a case study research concerning the implementation an innovative UFM service. The UFM process is enabled thanks to a robust data engineering approach and Information ...
Abstract: Recently, the accurate prefabricated Curtain Wall Modules (CWM) used as building facade are gaining popularity around the world. However, the conventional manual procedure for installation of CWM is dangerous for labour work. More so, it is a time consuming and expensive task. Automation of the CWM installation using a cable ...
Abstract: Simulation and predictive models to verify the energy performance of new or retrofitted existing buildings strongly need tuning procedures based on energy monitoring in the operational phase, thus to avoid performance gap concerns. The value chain of an uninterrupted information for energy models based on design data (e.g. for new ...
Abstract: Building management systems monitor and control building performances in real-time. Most control systems, which have been developed in the last decade, achieve the required performances relying on a centralised and hierarchical framework. In the regular operation phase, these systems are usually able to efficiently reach their goals, whereas they often ...
Abstract: As an elementary part of building projects, construction logistics encompasses planning, control and monitoring functions to ensure the flow of materials and people on the construction site. Furthermore, it includes the management of storage areas and site facility planning. Despite its importance, the implementation of construction logistics often does not ...
Abstract: Unmanned aerial vehicles (UAV) have gained tremendous interest in the construction management domain as a platform for progress monitoring, safety supervision, quality inspections, and overall job site logistics. With the continued growth of UAV application within construction domain, it is essential for construction program graduates to develop a general understanding ...
Abstract: Throughout history, waves of industrial revolutions have disrupted established manufacturing methodologies. Traditional construction processes have been transformed by new means of creating objects and computing information. The manufacturing of steel is no exception to this trend. Past methods for the creation of steel included hot forming (casting, extruding and welding), ...
Abstract: The Building Information Modeling (BIM) is getting more and more common into building construction, but it hasnt been developed into underground work so far, although it would be very useful. Indeed, underground works strongly interact with their environment, and with many different stakeholders, whose data are partitioned into their own ...
Abstract: Extracting knowledge from data on near hits (aka. close calls) might warrant better understanding on the root causes that lead to such incidents and eliminate them early in the risk mitigation process. While a close call is a subtle event where workers are in close proximity to a hazard, its ...
Abstract: The Architecture Engineering and Construction/ Facility Management (AEC/FM) industry plays a significant role in the development of economy. In recent years, the wide application and development of Building Information Modelling (BIM) promote the development of informatization and digitalization of AEC/FM industry. However, due to the limitation of a one single ...
Abstract: The timely updates and delivery of construction material on a job site could have a significant impact on the overall duration, quality, and cost of the project. The study focuses on analyzing the role of Internet of things in providing a real-time update on the delivery and data for material ...
Abstract: This paper describes a method of providing a panoramic image using single image transmission system. In recent years, demands for small robots performing inspection work by remote control are expanded. On the remote control of robots, to provide information of environment around the robots is important for operators. Multiple images ...
Abstract: Ensuring high efficiency in construction through advanced planning techniques must be supported by the simulation of construction processes. In previous research, the potential for multi-agent based simulation to support the planning phase were successfully shown with regard to some typical construction tasks. Among the main benefits determined by this approach ...
Abstract: Building Information Modeling (BIM) represents a procedural and technological transition that emerges as a change agent in the Architecture, Engineering and Construction (AEC) industry. 4D modeling refers to a BIM dimension that associates the 3D model of an enterprise with the planning schedule information, providing the visualization of the actual ...
Abstract: Pipe spool fabrication is still highly dependent on skilled craft labour and thus is subjected to the productivity issues, such as rework, that plague the construction industry. Rework is a major challenge and is estimated to account for up to 12% of the total cost of a major project. Identifying ...
Abstract: With a scenario of intense difficulties faced by the construction industry, improvements of the productive processes are demanded in order to make them more efficient, optimizing resources such as human, materials and financial ones, aggregating quality to the delivered product. Thus, this study aims the application of a methodology of ...
Abstract: The introduction of robotics in construction offers the possibility of implementing design processes that incorporate unforeseen levels of complexity. Not only does this allow for the construction of high degrees of formal differentiation, but for the conception of projects with a high-resolution integration of performative qualities. These performance aspects can ...
Abstract: This paper presents the general aim of the research at the Institute of Structural Design (ITE) at Braunschweig University of Technology to bring digital design and digital fabrication together to develop resource efficient construction elements, manufacturing processes and building systems. Basis of research at ITE is the so-called Digital Building ...
Abstract: Several data exchange standards support the open exchange of building data. Industry Foundation Classes (IFC) standard is the most widely implemented within software solutions and the most used in practice. This standard is developed by buildingSMART International and describes a schema defined with EXPRESS data modelling language also including the ...
Abstract: This paper addresses the problem of explaining the reason for mixed assessment results in comparing cost performance of project delivery systems (PDS). In particular, we focus on mediator effects for the explanation that would traditionally not be handled by project performance evaluation disciplines. Previous studies revealed that two kinds of ...
Abstract: This paper aims to describe a natural language processing (NLP) and deep learning-based approach for supporting automated rule checking system. Automated rule checking has been developed in various ways and enhanced the efficiency of building design review process. Converting human-readable building regulations to computer-readable format is, however, still time-consuming and ...
Abstract: A comprehensive research has been initiated by Korean government in order to disseminate modernized traditional Korean building (Hanok). Major objectives of this project include reducing construction cost and enhancing performance by developing construction materials and method for modernizing traditional Korean architecture. For example, modern construction methods such as glulam, steel ...
Abstract: The usability of the Internet of Things (IOT) is accelerated by making intelligent and equipping different machines and devices with smart sensors. IOT is used in smart cities, transportation, construction cases. IOT has the cap ability to provide real-time information for drivers and citizens to design their routes to avoid ...
Abstract: As construction projects become larger and more complicated, the importance of information sharing among various project participants throughout the entire life-cycle of a facility is ever-increasing. Establishment of standard classification system is the most fundamental task for systematic and efficient management of construction information. In recent years, technology advancement of ...
Abstract: This paper presents the integration of an Internet of Things wearable device as a personal interfacing node in an intelligent built-environment framework, which is informed by Design-to-Robotic-Production and -Operation principles developed at Delft University of Technology. The device enables the user to act as an active node in the built-environments ...
Abstract: Automated progress monitoring becomes more and more common in the construction industry. Recent approaches often use new methods like Unmanned aerial vehicles (UAVs) for a capturing large construction sites. However, the used methods often lack accuracy due to occluded elements and/or reconstruction inaccuracies from using photogrammetric methods. This paper presents ...
Abstract: The inventory of deteriorating infrastructure is increasing, and government resources are contracting inversely. The added expenditures of "emergency" repairs caused by asset mismanagement is too expensive and untenable. In response to the funding shortfall for transportation projects throughout Wisconsin, the Wisconsin Department of Transportation (WisDOT) needs to develop a strategic ...
Abstract: Sophisticated geometric and semantic models are the basis for many applications in the field of Building Information Modeling. While the requirements in terms of detail, flexibility and conformity on those models and thus on the corresponding modeling tools increase, especially in the case of parametric and procedural modeling, open questions ...
Abstract: Construction management courses are currently mostly based on frontal lectures, homework and exams where the exams comprise of questions similar to the ones that the professor showed in the lectures & later the student is asked to solve at home. In practice, construction engineers are required to be able ...
Abstract: Earthwork productivity varies depending on a unique geologic condition, types of earthwork equipment, and an equipment allocation plan. For this reason, it is difficult to accurately estimate the productivity of an earthwork. To address this issue, this paper develops an imaging-to-simulation method in which a real jobsite data is automatically ...
Abstract: Constructing soil and water conservation (SWC) facilities is crucial to protect soil and water resources, maintain natural ecology and landscape, and prevent erosion, landslide, debris flow, and other disasters. Due to the existence of mountainous terrain in Taiwan and the frequent prevalence of extreme climate changes, thousands of SWC construction ...
Abstract: Buildings contribute to socio-economic development of the human societies, but they are also among the main consumers of energy and contributors to the greenhouse gas emissions during their lifecycles. The construction phase of building projects is typically recognized for substantial use of natural resources and energy consumption. Steel, reinforced concrete, ...
Abstract: The job allocation models used in construction projects have been designed mainly to meet the objectives of the employers such as maximizing productivity and tended to pay inadequate attention to meet the needs and objectives of construction workers. Meeting the objectives of workers, however, is a basic component of corporate ...
Abstract: Building information modeling (BIM) is a new technology that supports lifecycle information management for buildings. Ontology, derived from philosophy, is another technology utilized to describe real-world entities and to infer their semantic relationships. Each year disasters such as fires, earthquakes and floods affect not only buildings but all occupants inside, ...
Abstract: This study suggests an indoor localization method to estimate the location of a user of a mobile device with imaging capability. The proposed method uses a matching approach between an actual photograph and a rendered BIM (building information modeling) image. A pre-trained VGG 16 network is used for feature extraction. ...
Abstract: The emergence of Building Information Modeling (BIM) technology makes the quantity takeoff process faster and more reliable. It helps reduce the effort in cost estimation to survey the cost feedback on alternative schemes in the early stages of design. However, at these stages, the quantity could be absent or in ...
Abstract: Retrieving proper accident cases and extracting risk factors from them are crucial for construction safety management. However, the process was often challenging due to unstructured properties of text data in accident reports, which caused limited, inefficient, and non-consistent information retrieval and knowledge gathering. To overcome the problems, this research aimed ...
Abstract: This paper presents the results of the practical learning experience when combine three different school level students to learn open infrastructure building information modelling (infra BIM) and automation during OuluZone workshop week. Students started to build Speedway track in OuluZone test centre with one-week resources with the help of experts ...
Abstract: Building Information Modeling (BIM)-based processes are increasingly being adopted worldwide. With it, possibilities to exploit digitization had been appearing for the AEC sector. In that context, the present work aims to investigate how, and in which form, a Cyber-Physical System (CPS), one of many different but complementary technologies associated with ...
Abstract: We discuss the idea of developing Information Modeling (IM) for an existing underground facility so that it can be efficiently utilized as an Underground Laboratory (UL) for the testing of machinery, automation and robotic systems in tunnel construction. The ULs are located in old mines or underground storage facilities of ...
Abstract: Occupant comfort plays an important role in office buildings in terms of environmental, social, and economic aspects. Facility managers need to evaluate occupant feedback to moderate the negative consequences on office users and ultimately on the corporations that occupy office spaces. However, in the current facility management systems, occupant feedback ...
Abstract: Building Information Modelling (BIM) has been implemented by architecture, engineering and construction (AEC) firms since it effectively manages and integrates information throughout the building life cycle bringing long term benefits compared to existing practices. BIM models serve as communication between design and construction phases. These models are used to determine ...
Abstract: Building Information Modeling (BIM) is a technique in which a three-dimensional (3D) building model is constructed and designed in a computer. In recent years, BIM has been widely used in design and construction phases, but it has not been widely used in operation and maintenance phases, which account for the ...
Abstract: As the importance of maintainability for the energy efficiency of industrial plants is emphasized, thermographic inspection has been widely used as a key technique. However, the thermographic inspection cannot provide clear information due to the limitation of low resolution in inspecting wide areas where the worker cannot acquire data in ...
Abstract: Photovoltaic (PV) solar energy is rapidly growing as a n attractive alternative to fossil fuels. PV panels can harvest the solar power and turn it into a clean source of electricity. Traditionally, PV panels are only used on the rooftops of buildings. However, with the emergence of building-integrated solar panels ...
Abstract: Information retrieval and automated progress estimation of on-going construction projects have been an area of interest for researchers in the field of civil engineering. It is done using 3D point cloud as-built and as-planned model. Advancements in the field of photogrammetry and computer vision have made 3D reconstruction of buildings ...
Abstract: Building Information Modeling is the process and the technology transition from a traditional single sequential form to a modern multiple parallel form of data integration. BIM is the process of data sharing and distribution with the ability to employ the data via numerous applications for managing several multidimensional tasks and ...
Abstract: This paper presents an ongoing work in relation to the development of a parametric design algorithm and an automated system for additive manufacturing that aims to be implemented in 3D clay printing tasks. The purpose of this experimental study is to establish a first insight and provide information as well ...
Abstract: One of the difficulties encountered at a plant construction site is frequent changes to design, which causes work overload. This can lead to increased construction costs, delayed progress, inferior work quality and poor productivity due to redundant work among project participants or omission of work. In this study, we propose ...
Abstract: Unrecognized hazards increase the likelihood of workplace fatalities and injuries substantially. However, recent research has demonstrated that a large proportion of hazards remain unrecognized in dynamic construction environments. Recent studies have suggested a strong correlation between viewing patterns of workers and their hazard recognition performance. Hence, it is important to ...
Abstract: Building automation is becoming increasingly popular due to the growing use of the Internet of Things (IoT) framework in the built environment. While there has been a spurt of mobile applications that control electronics in buildings, most of these utilize complex user-interfaces that require multiple interactions to realize user-intent which ...
Abstract: Earthmoving operations are complex system where many resources collaborate to carry out tasks. Although considerable efforts have been made in the development of efficient methods and systems for recommending appropriate fleets of equipment, in practice, average production rate method still prevails in favour of its simplicity at the cost of ...
Abstract: Temporary haul road layout design is a main factor influencing the cost and safety of haulage in heavy civil construction, especially on large site grading projects which entail mass earthworks. The ideal design of temporary haul road layout is to deliver the project in the lowest construction budget while guaranteeing ...
Abstract: In the past two decades, the Architecture, Engineering and Construction (AEC) industry has investigated different approaches to improve communication among project parties, including Virtual reality (VR) however these approaches have not been widely adopted by the industry. Today, the tremendous advancements in technologies and computer hardware have potentially improve d ...
Abstract: Infrastructure systems are very essential to every aspect of life on Earth. Existing Infrastructure is subjected to degradation while the demands are growing for a better infrastructure system in response to the high standards of safety, health, population growth, and environmental protection. Bridges play a crucial role in urban transportation ...
Abstract: The increasing complexity of buildings has brought some difficulties for emergency response. When fires occur in a building, limited perception regarding the disaster area and occupants can increase the probability of injuries and damages. Thus, the availability of comprehensive and timely information may help understand the existing conditions and plan ...
Abstract: This paper presents the problem of model comparison in platform-neutral collaboration of Building Information Models. The paper describes that model matching and comparison strategies for platform-neutral models (i.e. IFC models) are the keys to solve the problem of iterative change management during BIM collaboration workflows. It is highlighted that the ...
Abstract: Three-dimensional (3D) models are increasingly becoming an important tool in project management. At the same time, the 3D data of construction industry is more and more large, whether it is caused by large model scene or the requirement of model accuracy. In order to meet the requirements of the model ...
Abstract: Automation is generally assumed to improve project productivity. However, not enough research is done in the area of quantitative methods to evaluate productivity improvements through automation in construction. The aim of this study is to develop a methodology for analyzing productivity of any given automation system for construction. A case ...
Abstract: Interactive verification of construction works should provide for compliance between planned vs. completed works. The task of its fulfilment (especially for larger investment projects) is rather time and labor consuming. There is potential to reduce the duration of a verification process as well as to ensure the results are more ...
Abstract: In the U.S., the increasing electricity demand gives pressure on the power grids because of its limited capacity to serve demand. Instead of building new power plants to meet the increasing demand, Demand Response (DR) programs incentivize end-consumers to reduce certain electricity demand during certain periods (e.g., peak demand and ...
Abstract: Sensor technologies play a significant role in monitoring the health conditions of urban sewer assets. Currently, the concrete sewer systems are undergoing corrosion due to bacterial activities on the concrete surfaces. Therefore, water utilities use predictive models to estimate the corrosion by using observations such as relative humidity or surface ...
Abstract: Building Information Modelling (BIM) is an epochal phenomenon in AEC. Most of the developed countries has already adopted BIM by regulations. Biggest projects around the world executing by BIM which provides more effective project management process. Whole construction progress including; feasibility, design, construction and commissioning became digital visualization. Any required ...
Abstract: Construction work involves a number of repetitive and physically demanding tasks. Exposure to these labor intensive tasks with awkward postures result in an increase in biomechanical risk factors that may lead to work-related musculoskeletal disorders (WMSDs). Thus, it is essential to provide training for apprentice-level workers to adopt safe working ...
Abstract: The widespread application of offsite facilities has encouraged the construction industry to make use of manufacturing approaches to develop efficient production systems. To fully realize the advantages of offsite construction, management must be able to effectively schedule production activities to increase productivity and improve time efficiency. This necessitates a tool ...
Abstract: Efficient inspection and maintenance of bridges are vital for improving safety and sustainability of infrastructure systems. Recently, Light Detection and Ranging (LiDAR) scanners are used for detecting surface defects. The LiDAR scanner can be mounted on an Unmanned Aerial Vehicle (UAV), which provides easier accessibility to most parts of the ...
Abstract: Automation has been an active research topicin the construction industry for many years to improve the accuracy, reliability, and efficiency of the construction process. This study identifies global research trends in automation in construction during the past 15 years by analyzing papers published in the journal Automation in Construction. Text ...
Abstract: Buildings are typically designed to be aesthetically pleasing and cost effective, leaving out maintainability. This is partly because existing tools do not permit the involvement of facility managers or their inputs in the design phase. This has often resulted in the design of buildings with components or systems that cannot ...
Abstract: An effective realization of a building construction project - without incurring in congested site areas or decline of productivity - tightly depends on the construction activities planning process that, should consider and manage site workspaces availabilities. In this context, in the past couple of decades many research efforts have been ...
Abstract: Recent research on facility management has focused on leveraging location-based services (LBS) to assist on-demand access to model information and on-site documentation. Researchers highlight that fast and robust indoor localization is of great importance for location-based facility management services, especially considering when using facility management services in a mobile computing ...
Abstract: Construction process simulation allows producing a virtual copy of an existing or planned construction site. The detailed analysis of construction processes and construction logistics with the support of simulation models creates a better understanding of the performance defining aspects. In many construction sites, the actual performances lag behind the planned ...
Abstract: Current construction logistics planning in practice is executed as an experience-driven planning and proved as inefficient. Previous outcomes of Building Information Modelling (BIM) provide the fundamental of a digital construction logistics planning. However, an underlying logistics concept and a guidance from the production theory for applying BIM in logistics are ...
Abstract: Due to the increasing growth of labor cost, academics and practitioners in this field have focused on finding ways to improve work productivity. Many previous studies have indicated that mental status has a deep influence on productivity. However, the relationship among work productivity, psychological state, and physical status has not ...
Abstract: Amongst increasing innovations in frontier engineering sciences, the advancements in Robotic and Autonomous Systems (RAS) has brought about a new horizon in construction applications. There is evidence of the increasing interest in RAS technologies in the civil construction sector being reflected in construction efforts of many military forces. In particular, ...
Abstract: Four-dimensional (4D) Building Information Modelling (BIM) has been credited with improving construction planning procedures. The integration of 3D model with schedule information has enabled the effective detection of design and planning flaws in many construction projects. Due to the lack of research on using 4D BIM in Turnaround Maintenance (TAM) ...
Abstract: The number of cities that are implementing sustainable transportation programs has been recently on the rise. Reliance in large urban areas is on the use of public transportation systems such as busses and rapid transit lines (heavy rail) to act as the main mode of public transport in multi-modal transport ...
Abstract: Construction workers are commonly subjected to ergonomic risks due to awkward postures and/or excessive manual material handling. Accurate ergonomic assessment will facilitate ergonomic risk identification and the subsequent mitigation. Traditional assessment methods such as visual observation and on-body sensors rely on subjective judgement and are intrusive in nature. To cope ...
Abstract: Although Industry Foundation Classes (IFC) provide standards for exchanging Building Information Modeling (BIM) data, authoring tools still require manual mapping between BIM entities and IFC classes. This leads to errors and omissions, which results in corrupted data exchanges that are unreliable and compromise the interoperability of BIM models. This research ...
Abstract: The management of large building stocks with limited resources poses a problem of prioritization of refurbishment actions. Also, available information is often incomplete and the process of standardization and updating is expensive and time consuming. Some public administrations are developing BIM models of their stock, but they want to limit ...
Abstract: Construction accidents, injuries, and fatalities have not declined significantly, despite continuous efforts from researchers, safety professionals, and strongly-enforced safety laws. In managing safety, construction personnel are required to access a variety of rules, regulations, guidelines, and documents. However, finding the right contents, and communicating them to right person tends to ...
Abstract: Design of steel rebar in reinforced concrete (RC) members is usually conducted individually based on loading conditions, support conditions, and geometric conditions of the considered RC members only. Member-member interactions are rarely considered at the design stage, leading to potential rebar clashes (hard clash) or congestion (soft clash) at beam-column ...
Abstract: Design optimization frameworks used in manufacturing can be adopted into construction to solve complex and relatively unsolved challenges, as recent construction methods progressively incorporate more manufacturing aspects. For example, the specification and dimensional control for compliance checking of construction components can be solved using tools existing in manufacturing. Even building ...
Abstract: Modular construction has gained momentum in North America as an emerging construction paradigm in recent years. Modular buildings are assembled from components that are prefabricated in manufacturing plants and transported to the construction site for assembly. The current manual-based approach to modular construction, which typically applies the traditional stick-building-under-a-roof method, ...
Abstract: The current construction industry slowly adapts towards the new possibilities created through digitalization. However there still a major gap in the information flow between planning phases and the start of construction. With modern robotics we see a chance to mediate this gap. By using cloud accessible CAD software and linking ...
Abstract: The BERTIM Research Project is funded by the European Commission in order to develop a system for an efficient building envelope upgrading. The main goal of this envelope upgrading consists on adding a new 2D or 3D module onto the building external layer. The modules are made out of timber, ...
Abstract: Coronary heart disease (CHD), and its different variants, is one of the major reasons of increased death rates in industrialized nations. As the beginning of the disease is symptom free, unconsciousness and sudden death, as well as health related distortions can trigger accidents at construction sites any time. Therefore, there ...
Abstract: Real-time location tracking systems (RTLS) for personnel and machinery in outdoor civil engineering environments quite often use commercially-available Global Navigation Satellite System (GNSS) technology. Although the GNSS is an important approach in outdoor positioning and logistics coordination, their signals are not able to penetrate buildings due to their signal strength. ...
Abstract: This paper presents an initial proof-of-concept implementation of a comprehensively intelligent built-environment based on mutually informing Design-to-Robotic-Production and -Operation (D2RP&O) strategies and methods developed at Delft University of Technology (TUD). In this implementation, D2RP is expressed via deliberately differentiated and function-specialized components, while D2RO expressions subsume an extended Ambient Intelligence ...
Abstract: The ability to make the right decisions during the construction process ensures online monitoring of process in progress and the environment. The use of wireless technologies to collect data from sensors and transmit data over the Internet and mobile networks creates new opportunities in this field. A goal of paper ...
Abstract: Despite the consistent growth of global markets and emergence of cutting-edge technologies, construction jobsites remain among the most dangerous workplaces with extremely high accidents rates. In the safety management process, it is necessary to review and assess a variety of safety documents and data. Numerous public agencies provide open access ...
Abstract: The current urbanization, industrialization and planning of new city-districts require efficient design to manage the energy, ecology and economical demands set for living environment. The efficiency of Building Information Model (BIM) design in construction sites has been proven through many projects. The full overview and control of design, construction and ...
Abstract: Currently the structural engineering and construction technologies go through substantial paradigm shift and development between energy conservation, health and living cost issues. Increasing energy consumption for e.g. heating and cooling and the constant effort to energy preservation in all forms promotes the manufacture of sustainable low-energy or near-zero energy houses, ...
Abstract: Despite the growing interest towards Building Information Modelling (BIM) adoption by the Brazilian construction industry, the use of this process in a way that permeates all stakeholders of the entire construction life cycle stages are still incipient. In general, the use of BIM is typically limited to the design phases ...
Abstract: This paper aims to classification and structuring of explicit objects and properties which can be utilized in KBimCode and develop database in the Korean building Act. In order to conduct automated building code compliance checking, it is essential to translate requirements in Korean Building Act into a series of explicit ...
Abstract: Fatalities resulting from cave-in hazards during excavation work in the United States account for 48% of the trench fatalities in construction every year per Occupational Safety and Health Administration (OSHA) data. Recent trends indicate that fatalities from trench and excavation hazards in the US are increasing. Often the experience of ...
Abstract: An important aspect of construction project management is site layout planning (SLP) which involves key decision making on aspects like location of tower cranes, location of inventories, parking spaces, temporary structures and understanding movement and co-ordination among various trades. SLP necessarily involves visualizing the progress of construction through the project ...
Abstract: There is a continual challenge within the construction industry to achieve schedule, budget, and quality expectations at a time when projects are more complex and their designs and assembly involve some measure of abstract spatial skills. In postsecondary institutions, these abstract spatial skills have routinely been taught through drafting and ...
Abstract: In case of re-modeling construction project, it has various difficult situations to carrying out the projects comparing with general construction project. The re-modeling project needs to do several make decision makings which is to define the scope of utilization, extra works and O&M(operation & maintenance). Especially, the construction delays and ...
Abstract: This study examined whether the augmented reality (AR) technology affects the quantity take-off performance of construction management (CM) undergraduate students. The sample for the study consisted of 22 sophomore CM students taking an estimating course at Western Carolina University in the U.S.A. To determine whether AR images help students' quantity ...
Abstract: In order to maintain a reliable facility management (FM) service for a commercial office building, a facility personnel and the building owners make a decision with detailed-level building Operation and Maintenance (O&M) data. By analyzing the data, they can make decisions in terms of whether to and/or where to invest ...
Abstract: As the scale of construction increasing and the structure being more complicated, it is necessary to use the computer information technology to promote the industrial efficiency and tend with information management. The application of Building Information Modeling (BIM) has become the trend. As there are different benefits in each phase ...
Abstract: Taiwan Green Building Evaluation System was established in 1999 by the Government, that main axis was ecological, energy saving, waste reduction and health (EEWH), to enhance the effectiveness of promoting green building design in Taiwan. The Green Building Measure System (GBM) was completed by the the Ministry of the Interior, ...
Abstract: The use of modular construction methods for projects offers significant time and environmental improvement relative to conventional construction methods. Currently, there is a lack of appropriate assessment approaches to capture the differences between modular and conventional construction. This paper proposes a framework to aid decision makers in choosing between the ...
Abstract: Preserving irreplaceable historic structures is an important factor in architecture design studies. The environmental, cultural and economic benefits cannot be overemphasized. We have an obligation to record and preserve the history of each generation because the buildings change with us. Historic buildings are not too complex to benefit from the ...
Abstract: Facility managers usually need to make decisions under different types of MEP system breakdowns. They usually fight to find the information required to restore the system. However, the BIM model developed usually lacks of information to satisfy the what-if analysis under various maintenance scenarios. Although several researchers took the linked-information ...
Abstract: In recent days, digital fabrication is termed as third industrial revolution and its interaction with extrusion based cementitious material has been well known as concrete printing. Concrete printing is a promising technology where robotic/gantry systems, controlled by digital model deposits concrete layer by layer following the G-code, generated from NC ...
Abstract: This study compares the performance of six classifier models (ANN, KNN, C4.5, SVM, LR, and NB) for predicting the business failure of construction companies after three years from 2009 to 2012. Although previous studies have explored numerous business failure prediction models for construction companies, these models have focused on short-term ...
Abstract: The use of modular construction as opposed to traditional on-site construction presents an opportunity to improve a projects economic and sustainable performance. At the same time, substantial savings in the overall projects duration can be achieved. The potential for reducing the overall makespan period involved in manufacturing and assembling the ...
Abstract: The cost and carbon efficiency of building structures could be enhanced by the current developments in design automation and optimisation techniques. The study focuses on a common structural system seen in the majority of mid- and high-rise buildings in the UK: flat slabs with reinforced concrete columns. A multilevel optimisation ...
Abstract: The reliability of structural performance of bridges in Taiwan are affected by both in-service loading and material deterioration due to extreme environmental factors. With an inventory of 27,895 bridges and culverts in Taiwan Bridge Management System (TBMS), there are more than 8,840 bridges that are over 30 years and around ...
Abstract: The construction industry is undergoing a new wave of industrialisation driven by the shift towards off-site construction and the growing interest in mass-customisation of building systems. On one side the industry is acquiring new manufacturing and automation capabilities. On the other, it has a need to understand how to develop ...
Abstract: Radio Frequency Identification (RFID) technology has become one of the most important technologies for improving management efficiency. This study enhances facilities maintenance by integrating RFID, web-based, and artificial intelligence techniques. A data management module is developed first to collect facilities maintenance data. A statistical module is established to graphically display ...
Abstract: Apartment buildings and residential buildings in Taiwan have become more and more community oriented. Precise control of residential buildings operational performance is increasingly important. Using network data envelopment analysis (Network DEA) and existing data, this study develops a three-phase based residential building operational performance assessment model and use it to ...
Abstract: Naturally, buildings will deteriorate during its life cycle. On the other hand, sustainability of building condition is the main objective in providing service for users. Therefore, building maintenance management should be a priority to achieve that objective. As a special case, in Indonesia, government agencies face a quite complicated problem ...
Abstract: When facilities was exceptionally occurs, the traditional operation method is either to repair or replace. Before operation procedures starts, it needs to be taken through a series of actions of notification with paperwork. Thus, the management on site tends to make the operation procedure with inefficiency and inconvenience. The recent ...
Abstract: Traditional property management models are not able to meet new customers requirements in terms of detailed information of the property quality and conditions. This paper aims to develop a framework for application of advanced visualization technology in residential property marketing to offer a detailed 3D information model to customers through ...
Abstract: As there is an increasing number of disasters hitting countries around the world, numerous mitigation strategies have been proposed and implemented to alleviate such impacts. Indeed, every year many public and private organizations work together to prepare various disaster exercises for training their first responders. Design of an appropriate drill ...
Abstract: In the building life cycle, the design phase is related to the usability and practicability of the building operation. Communicating ideas regarding the design requirement is the key point. In healthcare building design, it contains the most multiple, rigorous, and complex system. The healthcare design should be fully considered. However, ...
Abstract: In this paper, we propose a solution to improve the construction management capacity. Our solution contains three parts: a Location Identification System, a Work Progress Management System, and a Statistical Analysis & Visualization System. The Location Identification System locates the equipment and the worker inside the construction site, by using ...
Abstract: Interior design elements, particularly colours, have shown significant influence on employers performance in office environments. The task performance was often measured against different coloured offices in physical built environments. An identified challenge for these studies is to alter colour settings for experiments. Immersive virtual environment (IVE), as an advanced technology, ...
Abstract: The content of fire cause investigation is not only the fire prevention as reference but also the significant gist to improve firefighting. But in point of fire site investigation, mostly were using handwriting document for recording information at present, obviously lacking with carrying convenience and recording instantaneity. Meanwhile, after causing ...
Abstract: Development and expansion in the cities have increased the demand for road construction projects in different regions of the world. The construction projects in the modern era require the utilization of latest technology. BIM and its collaboration with other technologies like GPS, UAV, AR/VR, and telematics have successfully proven their ...
Abstract: Usually, it is necessary for general contractor to handle constructability review of infrastructure and civil projects during the construction phase. Generally, constructability review usually be analyzed and applied at job onsite using 2D CAD drawings. The constructability review integrated with 2D CAD drawings usually cause timeconsuming problems and problem misunderstandings. ...
Abstract: This paper describes the visual language-based approach for the definition of building permit related rules. The conventional design phase of architecture has a high possibility of occurring error and time consuming because of the necessary handling of human resources. The introduction of BIM (Building Information Modeling) enables those inconvenient and ...
Abstract: In this study, the frequently encountered issues related to reinforced concrete nodes (beam and girder protection layers, beam column protection layers, and binding wire collision, etc.) were sorted out and analyzed. Building Information Modeling (BIM) was employed to solve the problems resulted from the complex node issues. Moreover, new steel ...
Abstract: 3D Indoor space topology, mainly referred as floor layouts and navigation routes, is the foundation of indoor Location-based Services (LBS), such as navigation in large shopping malls or interchange in large transport stations. Manually generating this topology is highly time-consuming, less cost effective, and prone to errors. This research adopts ...
Abstract: According to rapid deterioration of many domestic tunnels and bridges, engineers that manage them have become insufficient. For this reason, it is desired to develop an automatic hammering robot that can inspect them quickly and accurately. If a hammering sound by the robot is similar to a sound by engineers, ...
Abstract: In the Japanese construction industry, the number of young workers is decreasing and skilled workers are aging. For that reason, efforts to improve productivity by using information technology (IT) and robot technology are under way. One of them is UAV. In civil engineering work, UAV is utilized in volume ...
Abstract: A reinforced concrete box culvert (RCBC) is a structure that allows water to flow under a road, trail, or similar obstruction. Currently, many RCBCs are located under cities and roads. If a ground subsidence occurs owing to the sudden collapse of an RCBC, it could result in a serious accident. ...
Abstract: New products in mechatronics, and especially the spreading of microcontrollers, allow a rise in robotic projects of building construction companies. This new context gives the ability to non mechatronic experts to develop building sites robotics. In this paper we will describe the design process of a drilling robot prototype made ...
Abstract: Recently, advanced and semi-automated equipment, laser-scanner and Unmanned Aerial Vehicles (UAVs), has been used for construction project. Especially, photogrammetry using image acquired from UAVs can make high accuracy data and need low cost compared with terrestrial and aerial Lidar. Unmanned Aerial vehicles (UAVs), aerial movable image sensing platform, have started ...
Abstract: The equipment used in earthmoving operations poses a significant threat to the safety of the equipment operator and construction workers due to the operators inherently poor visibility of the surrounding environment. This study proposes a method of automated detection of nearby obstacles with monocular vision, with the goal of protecting ...
Abstract: Estimating the productivity of construction operations is one of the most challenging tasks for project managers. Therefore, the construction industry always looks toward new advancements for automating this process. New automated methods for productivity estimation aim to detect the types, locations, and activities of construction equipment based on sensory data. ...
Abstract: The traditional cost-based Earned Value Management (EVM) method, and the related Earned Schedule Management (ESM) and Earned Duration Management (EDM), for construction project schedule control has been founded on the basis of the Planned Value (PV). However, the relevant risk factors are usually not taken into account while the scheduler ...
Abstract: The traditional construction schedule planning methods are mostly based on the project activities list broken down by the experienced engineers who primarily analyze the work content of construction drawings, and the activity durations estimated by simulating the construction process according to the conditions of the construction site. However, such an ...
Abstract: Value engineering (VE) has a great potential to enhance project delivery. It has become a standard practice for many government agencies, private engineering firms and contractors since its first adoption. Decision makers judge the alternatives performance under selected criteria and simultaneously weighing the relative importance of the criteria in order ...
Abstract: Schedule delay is one of the worrying problems in the construction industry. Activity delays might increase project duration, cost and sometimes cause delay claim disputes between parties in construction projects. Some methods have been developed for analyzing and measuring project schedule delays, but most of those methods contain assumptions and ...
Abstract: According to the research of Taiwan Institute of Economic Research, the domestic PPP (Public Private Partnership) projects create economic growth rate of about 0.08% per NTD 10 billion of capital. In Feb. 2015, project report by Ministry of Finance indicated that signed PPP projects over the years have injected investment ...
Abstract: Abstract The United Nations in 1992 through the "United Nations Framework Convention on Climate Change (UNFCCC)" on the "Anthropogenic Greenhouse Gas" emissions to make global control of the declaration, so "carbon reduction" has become the topic of concern to countries around the world. (Energy Efficiency and Carbon Reduction ...
Abstract: The article is based on the work carried out on Unmanned Ground Systems Landscaping and Integration Study UGS-LIS that has been done for European Defence Agency (EDA) by such European entities like: GMV Innovating Solution, Industrial Research Institute for Automation and Measurements and Military University of Technology. There are ...
Abstract: Unmanned construction is a construction method of operating construction machines from a remote place by using radio waves. In Japan, unmanned construction has many applications in disaster sites where people can not enter. However, unmanned construction is less than half of the construction efficiency as compared to normal boarding operations. ...
Abstract: This paper is a technical review of the smart excavator guidance system being used in Australia. The construction industry contributes towards 8% of the countrys GDP (Gross Domestic Product) which makes it one of the largest sectors of the nations economy. Efficient earthworks have a significant impact on all construction ...
Abstract: Digital transformation is an ongoing challenge in construction. Whereas central storage and planning with Building Information Modeling (BIM) can be considered state-of-the-art, the integration of real-time data like environmental and localization data of workers in indoor work environments can provide further benefits for operations management in construction and facility management. ...
Abstract: Scaffolding system plays an important role at construction sites. According to the Occupational Safety and Health Administration (OSHA), 65% of the construction workers use scaffolding system frequently. Each year, there are 4500 injuries and 50 death caused by scaffold-related accidents, costing American employers $90 million on lost workdays. Thus well ...
Abstract: In a construction project, the scaffolding system is an important temporary facility to support the process of construction. Without properly assembling scaffoldings, the construction process could be delayed, and workers could be exposed to danger. However, construction workers usually rely on their past experiences to assemble scaffoldings without detailed planning. ...
Abstract: Building Information Modeling (BIM) technology developed in the recent decades and provided a new perspective which shifted the trend from simple 2D drawings to intelligent 3D modeling. Earthwork is the primary component of any construction project regardless of the scale of work. In the modern world, it has become possible ...
Abstract: The goal of Building Information Modelling (BIM) is the integral overarching digital modelling of all properties regarding a building as well as its construction. This is targeted through the integration and support of all involved experts. Due to the interdisciplinary nature of this task, the necessary data often only exists ...
Abstract: In this paper we present a comparison between the older DSTV file format and the newer version of the IFC standard, dedicating special attention of its impact in the robotization of welding and cutting processes in the construction industry. In the last decade, we have seen a significant increase in ...
Abstract: Unmanned Aerial Systems (UASs) have been proven a useful utility for mapping or site scanning purposes. Practical applications emerge in the form of inspecting structures that are hard to reach, deterioration analysis, construction monitoring or quantifying material in landfills. From a technological perspective many of these applications rely on the ...
Abstract: This paper presents the ROBO-SPECT European FP7 project, funded under the ICT-2013.2.2 programme on Robotics use cases & Accompanying measures. The main objective of the ROBO-SPECT system is to provide a robotized, faster and reliable alternative to manual tunnel structural inspection and assessment. Physical developments include the design and ...
Abstract: A major part of recent developments in civil engineering in the urban context evolved around building and city models. Especially for a precise risk assessment of damages to existing buildings induced by ground movements, accurate models are inevitable. Beside the shape of a building, the focus is also on components ...
Abstract: Generation and quality of as-built models influence their usage in subsequent applications such as progress monitoring,quality control, and deviation detection. The quality of any 3D reconstructed model heavily depends on the raw inputs and the post processing involved. While laser and LiDAR based ...
Abstract: Real-time vision systems are widely-used in construction and manufacturing industries. The significant proportion of computational resources of such systems is used in fiducial identification and localisation for the tracking of the motion of moving targets. The requirement of the identification systems is to localise a pattern in the image captured ...
Abstract: In order to get the building construction permit, the building owners who intend to construct or modify their buildings must submit documents to the local government officers for approval. Typically, the government officers will review the submitted documents and check city planning and land uses designations in accordance with laws ...
Abstract: Todays population has reached a growth rate never seen before, and, globally, there are examples of traditional cities that have failed to adapt to this sudden change. Therefore, in some areas of the world, the overall quality of life has become unbearable. A proactive response is needed in order to ...
Abstract: The incorporation of novel technologies in building and settlement design involves unique challenges, such as frequent design changes, the risk of cost overruns and the need to synchronize the work of different stakeholders who did not previously collaborate. This paper describes the development of a set of control and optimization ...
Abstract: Since April 2009, Korea has been importing 1.5 million tons of LNG(Liquefied Natural Gas) annually from the Sakhalin-II project, which is operated by Gazprom, Russia's largest state-run gas company. Also, it is expected that the cost of pipeline construction will reach $55 ~ 60 trillion by 2018. In this long-distance ...
Abstract: The conventional Building Information Models (BIM) does not contain knowledge about the relation between different pieces of information. To be able to understand the information the recipient must have sufficient knowledge within the given domain. When information cannot reach to the relevant party in real time or in advance that ...
Abstract: General contractors usually need to handle subcontractors payment requests periodically according to the progress of the construction project. The documents required for payment requests are related to various types of information generated form construction work items. Consequently, construction company needs to spend a lot of efforts to verify and approve ...
Abstract: In order to improve the efficiency of construction management, a new methodology is presented to develop translatability for construction BIM(Building Information Modeling) and ERP(Enterprise Resource Planning) by using UML(Unified Modeling Language) tool. The method includes a new rational operation process can be developed to improve efficiency. Besides, the competitive ability ...
Abstract: Building information modeling (BIM) is considered as a major trend of the construction industry in the future. In traditional way for estimating the cost of the HVAC system in buildings, a lump sum method is adopted as a rough approximation. Instead of detailed quantity calculation, the lump sum method ...
Abstract: There are some twenty-nine thousand bridges in Taiwan, managed respectively by Taiwan Railways Administration, Taiwan Area National Freeway Bureau, Directorate General of Highways, and local governments. According to the current bridge maintenance guidelines in Taiwan, bridge inspection is mainly carried out through visual inspection, supplemented with equipment inspection. Bridge inspectors ...
Abstract: This paper presents a novel pipeline for development of an efficient set of tools for extracting information from the video of a structure, captured by an Unmanned Aircraft System (UAS) to produce as-built documentation to aid inspection of large multi-storied building during construction. Our system uses the output from a ...
Abstract: Bridge plays an important role for transportation networks but its damage can threat public safety and hinder economic activity. Timely bridge management is needed not only to keep operating services but also to ensure traffic safety. Nowadays economically developed countries such as the U.S., Canada, Japan, and Korea have difficulties ...
Abstract: Determining accurate concrete strength is a major civil engineering problem. Test results of 28-day concrete cylinder represent the characteristic strength of the concrete that has been prepared and cast to form the concrete work. Waiting 28 days is quite time consuming, but it is important to ensure the quality control ...
Abstract: Google Tango® is an augmented reality based Android tablet that contains customized hardware, an array of sensors, and software designed to track the full 3D motion of the device while simultaneously creating a map of the environment. The embedded sensors allow the device to make over a quarter million 3D ...
Abstract: Automated recognition of building elements convey vital information for inspection, monitoring and maintenance operations in indoor environments. However, existing object recognition methods from point clouds suffer from problems due to sensor noise, occlusion and clutter, which are prevalent in indoor environments. This paper proposes an object recognition method based on ...
Abstract: Laser scanning is the de-facto system to collect large amounts of geometrical information, especially indoors. Total stations are usually used for accuracy and information-rich results. However, in some cases the target area is not suitable for using a terrestrial laser scanner. For instance, too cramped or difficult-to-access space can be ...
Abstract: Researchers have developed various eco-feedback systems that aim at reshaping energy consumption behaviors of building occupants for energy conservation. Different technologies have been used to build the interface of eco-feedback systems through eco-feedback information is delivered. One emerging technology that has been envisioned for this purpose but rarely tested in ...
Abstract: Some public buildings, which date back to the 1980-1990s, often miss to comply with comfort basic requirements. Also, their energy consumption is often above thresholds posed by regulations presently in force. Hence, low-cost technology improvements for renovation with high return on investment is a good opportunity in order to limit ...
Abstract: New digital technology has the potential to decrease the environmental footprint of construction activities,while they increase the productivity and safety involved in major construction projects. Digital technologies such as web-based building information modelling (BIM) and sensing technology are emerging technology that can be widely employed in construction projects in developing ...
Abstract: This Building Information Modelling (BIM) is considered an innovative method to design, construct and manage a building. BIM can reduce time, cost and enhance project quality. The objective of this study is to identify and evaluate the challenges that are facing the application of BIM in the Palestinian construction ...
Abstract: Architectural information is managed throughout the life cycle of a building. Building information modeling (BIM) serves as a shared knowledge resource for information about a facility, forming a reliable basis for decisions during its life cycle from inception onward. BIM technology has been utilized increasingly in quantitative ways in the ...
Abstract: The great development of Information and Communication Technology (ICT) in recent years, especially network-based and cloud-based technologies, has led to a significant increase in efficiency of Building Information Modeling (BIM) platforms, which motivated a radical change in the management of Architecture, Engineering and Construction (AEC) companies through the implementation of ...
Abstract: Indoor acoustics is an important issue in the design of facilities such as concert halls, lecture theaters and hospitals, which require a quiet environment. To perform acoustic analysis in the current acoustic simulation tools, 3D modeling of the facility geometry in those tools is needed, which is a time consuming ...
Abstract: Conflict analysis is one of the most recognized benefits of employing Building Information Modeling (BIM) to the mechanical, electricity and plumbing (MEP) system, especially at the design stage. However, at the construction stage, the MEP professional still strives to install the MEP system only according to the BIM model due ...
Abstract: This paper presents the results of a five-year longitudinal study conducted to analyze the changes in the building information modeling (BIM) services provided by top contractors from 2011 to 2015. Many previous studies analyzed the trend of BIM adoption through questionnaires, case studies, or interviews, all methods that are subject ...
Abstract: Construction equipment such as excavator, dozer, loader with automation system help the efficiency, accuracy to improve and reduces the cost. And the phenomena about avoiding particular occupation and a shortage of manpower in construction field as the low birth rate and aging has recently come up to the fore as ...
Abstract: Despite the long-term benefits gained through road maintenance projects, the work zone involved can cause serious traffic congestion and greatly increase traffic delay. Variable speed limit (VSL) enforcement provides a means to reduce the travel time and alleviate the traffic congestion in work zones. This paper presents a novel proactive ...
Abstract: The paper will describe a design of functional model of a bricklaying industrial robot that is able to technically implement the complete process of bricklaying. The system will be created at a reduced scale and will be able to brick object. The robotic system for bricklaying will use special developed ...
Abstract: In recent years, increasing attention has been paid to indoor positioning. This paper presents a BIM-based Indoor positioning technology using a monocular camera. This technology utilizes a monocular camera to obtain on-site image. An improved corner detection algorithm is used to identify the corners of the ground tile in the ...
Abstract: There exists many types of different RTLS systems that can be used in the construction sector for tracking people and assets. Previous research showed that such system can be used with success especially during the construction stage of the object. Lean Management is a methodology based on waste reduction in ...
Abstract: Locating construction equipment and workers during construction are critical for improving safety and productivity. The current indoor locating practices employ real time locating systems to provide alerts when workers expose to safety risks in a construction site. These studies assess risks based on the distance of the worker from hazard ...
Abstract: The early detection of overruns in construction industry is essential for effective project management. Inefficient and wasteful project reporting systems contribute in project failure as it deprives project management team from taking immediate corrective actions. Reporting and dashboard tools allow multiple data source extraction and processing, which facilitate producing integrated ...
Abstract: over and rapid advancement in construction
Abstract: Among the increasing complexities and surface development, underground utilities installation, renewal and repair remain one of the most challenging projects worldwide. In addition, the crucial need for a minimal surface disruption is what even makes it more thought provoking for contractors/specialists to maintain. That is why, trenchless technology has been ...
Abstract: Road construction companies work on delivering multiple projects at the same time. Careful planning and allocation of each project's resources need to be determined and evaluated in order to minimize their costs and maximize their profits. In this paper, a model was developed with the objective of trading off between ...
Abstract: This contribution explores a novel combination of methods from robotics and BIM by working on Building Information Models (BIMs) with the Open Motion Planning Library (OMPL), an extensible programming interface and reference collection of various algorithms for sampling-based motion planning. We present a seamless workflow from industrial BIM generation to ...
Abstract: One of the fundamental issues of site plan development is the location of a tower crane which needs to be designed to meet specific criteria and specific needs of structures. With today's traditional techniques it is quite difficult to consider optimal position and to select adequate technical parameters of a ...
Abstract: Application of the AGV (automatic guided vehicle) has broadened in factories and warehouses. Although most AGVs use magnetic tape for the guide path, the guided method has some problems. Once a path has been set, you require re-installation of the magnetic guide tape on a floor in order to reset ...
Abstract: As buildings have become more complex, the construction industry has become more specialized, but it is under greater pressure to become more efficient, productive and integrated. Thus, all recent and novel attempts including Lean Construction (LC) philosophy, Integrated Project Delivery (IPD) method and recently Building Information Modeling (BIM) technology are ...
Abstract: Over the last decade, the rate of fatality of workers in construction work zones has been of serious concern. One of the most frequent accidents happens due to a ground worker being struck by construction equipment. A major reason behind this is the inability of equipment operators to be aware ...
Abstract: While Building Information Modeling (BIM) has been increasingly accepted in the construction industry, the rich project information in BIM is still not well utilized to support the field construction management. Project managers need to spend significant time and effort to find out useful project information (such as plans and specifications) ...
Abstract: The quality and precision of casted industrial floor is often a dispute between an investor and a contractor. Its geometrical and physical properties divert from values defined by the project and also often do not meet the criteria of National Standards requirements. The aim of this paper is to evaluate ...
Abstract: Precast concrete elements are popularly used in the construction of buildings and infrastructures because they enable higher construction quality, less construction time, and less environmental impact. To ensure the performance of complete precast concrete systems, dimensional quality of individual precast concrete elements must be assessed before they are transported to ...
Abstract: Automated monitoring systems have proven to be effective in improving the productivity of equipment-intensive operations in the construction and mining sectors. Vision-based systems are the most recent methods employed to detect, track, and monitor construction equipment. The currently developed systems, however, analyze video frames captured by a stationary camera, which ...
Abstract: Rebar tying is labor-intensive and expensive, with a high learning curve that restricts proficiency at the craft to a great deal of construction field experience. Obtaining this experience requires tasks that are taxing on the human body, often resulting in muscular and skeletal injuries. Previously, research and engineering controls for ...
Abstract: The down-peak period is an important aspect of hoist operations in construction projects. To make the vertical transportation service more efficient, the operation parameters of down-peak should be modeled precisely in the process of planning. A simulation model is developed to analyze the operations of elevator in down-peak. The ...
Abstract: Offsite construction has gathered momentum in recent years due to its improved performance in terms of project cost, schedule, quality, environmental impact, and safety. Offsite prefabricated systems vary depending on the size of prefabricated components, which affect the need for onsite construction. These systems include categories such as modular, panelized, ...
Abstract: Building Information Modeling (BIM) and its implementation in Architecture, Engineering and Construction (AEC) industry is rapidly growing all over the US. The growing utilization of BIM application has resulted in accumulation of tremendous volumes of computer-generated design data. Such vast datasets provide practitioners with an opportunity to extract valuable information ...
Abstract: Italy possesses a unique cultural heritage that is constantly under threat from natural and anthropic risks: fire vulnerability is one of the main causes of architectural heritage destruction. The goal of this work is to propose a methodological approach to the management and preservation of historical building heritage with respect ...
Abstract: Early hazard recognition in the construction environment plays a pivotal role in accident prevention. Modern technological advances in the field of visualization and display hardware enable unrivaled situational experiences when using head-mounted displays. Low-cost hardware, high refresh rates and increasing resolutions of devices enable immersion into a virtual world with ...
Abstract: Site layout and logistics planning generally plays an important role for the successful execution of construction activities. The allocation of the right amount and size and the timely use of resources play critical roles. Compared to other industrial sectors the construction industry shows a lack of technological progress in site ...
Abstract: Recognizing construction assets from as-is point cloud data of construction environment provides essential information for engineering and management applications including progress monitoring, safety management, supply-chain management, and quality control. This study proposes a fast and automated processing pipeline for construction target assets recognition from scattered as-is point clouds. The recognition ...
Abstract: Recently, the use of curtain wall systems has been increasing. The architect should be able to intuitively select materials and design elements that are the most suitable for the building from among diverse curtain wall systems. However, in the current curtain wall design processes that are mostly implemented in 2D, ...
Abstract: According to the Ministry of Land, Infrastructure and Transport in Korea, the number of bridges over 30 years old will be three times in 2025 than three thousands in 2015 so that proper maintenance enforcement has emphasized. The Korean government legislated on the Special Act on Safety Control for Infrastructure ...
Abstract: Safety is the highest priority for most construction professionals. However, enforcing the safety requirements and self-regulation of construction jobsites can be difficult. Often, one safety manager is responsible for multiple jobsites and must split their time appropriately depending on the type of work and size of job. This, coupled with ...
Abstract: Modular residential construction activities often require prolonged standing, bending, stooping, and material handling, while working in crowded spaces; these activities increase the potential risk of work-related musculoskeletal disorders (WRMSDs), which may worsen over time, resulting in permanent disability and, consequently, the loss of ability to work. The use of system ...
Abstract: Bridges are exposed to different types of damages within their lifetime. Bridge maintenance is an essential procedure that can significantly affect lifetime and serviceability of bridges. First step in bridge maintenance is inspection. Visual inspection has been traditionally the dominant method of bridge inspection. Although visual inspection is still used ...
Abstract: Construction progress management and work analysis are often difficult in building interiors. In order to make progress management easier, the authors developed methods for recording the interior work environment. These methods record data using Microsoft Kinect sensors. In this paper, the authors describe methods for recording work data utilizing several ...
Abstract: This paper presents an approach of using cable-driven parallel robots for automated construction. Masonry buildings are considered as appropriate application case due to repetitive construction procedures, high demands on quality as well as accuracy of construction, and handling of small and lightweight material. In this context, the application of Building ...
Abstract: Deterioration models are required and used in Bridge Management System (BMS) to predict the condition and performance of bridges. Effective maintenance of bridge structure relies on the accuracy of deterioration models used to predict bridge performance. Markov Model is a deterioration forecasting model that is widely used in BMS. However, ...
Abstract: The industrial construction industry makes use of prefabrication, preassembly, modularization and off-site fabrication (PPMOF) for project execution because they offer a superior level of control as compared to on-site operations. This control is enabled by systematic and thorough performance feedback loops. Improvement of the feedback systems within these facilities will ...
Abstract: Even engineers who have the same job title and are working on the same project have different skills and backgrounds. However, despite the importance of assigning the right person to the right job to ensure successful project delivery, current human resource (HR) allocation practices are only concerned with the list ...
Abstract: Digital models have many benefits for construction; for example, clash detection prior to approval, ability to confirm assembly sequencing, verification of as-built dimensions, and more. Customizing and preparing such models for project delivery takes a large amount of time and, unfortunately, cannot guarantee that the physical building or part can ...
Abstract: Accurate and rapid condition assessment of in-service infrastructure systems is critical for system-wide prioritization decisions. One major assessment consideration is structural section loss due to deterioration, for instance from corrosion. Modern 3D imaging, which generates high-resolution 3D point clouds, is capable of measuring this degradation. Despite growth in the fields ...
Abstract: On congested sites in many cities around the world, there is no space available for installing heavy tower cranes and the approach roads are narrow. On such sites, it is desirable to have an automated construction system that can assemble the required components without the use of heavy lifting equipments. ...
Abstract: Building designers have increasingly looked at simulation to improve the performance of building systems with the primary objective of simultaneously maximizing comfort, and minimizing energy use. The quality of the simulations depends on the quality of the data being input into the models. The input data for simulation comprises the ...
Abstract: Cranes remain a vital tool for the construction of infrastructure such as buildings, bridges, etc. Recently, there has been renewed interest in crane automation in dealing with concerns on safety and possible performance degradation due to system uncertainties and disturbances. One potential solution to the problem is the use of ...
Abstract: One of the material waste streams in the construction of concrete structures is the waste generated during cutting of steel bars to their final required length. The amount of waste generated to produce the required length of steel bars can be affected considerably by the cutting patterns adopted. Waste can, ...
Abstract: The advantages and disadvantages of Building Information Modelling adoption have been extensively investigated in available literature. However, the focus of previous studies has been placed mainly on BIM adoption in relatively large organizations and little effort has been made to investigate the effects that the size of the organizations may ...
Abstract: The Heating, Ventilation and Air Conditioning (HVAC) system consumes the major part of energy in buildings. By analyzing the gap between the actual energy consumed and the required energy to satisfy heating/cooling loads, it is estimated that an average of 38% of the energy can be saved with the adoption ...
Abstract: Unmanned construction is actively employed at dangerous locations where people cannot enter because of disaster damage. Unmanned construction is a technology of remotely controlling construction machines as an effective system of construction to ensure the safety of operators. However, the work efficiency of unmanned construction is poorer than that of ...
Abstract: Unmanned construction with remotely operated construction machines is actively used a means of construction work in dangerous areas with no access to people such as rehabilitation work sites damaged by natural disasters including earthquakes or volcano eruptions. Unmanned construction is expected to progress in the field as a quick and ...
Abstract: This paper presents the factors that could potentially affect the reliability of a serverless smart exit sign system, namely an evacuation guidance system based on a wireless sensor network (WSN) without a central server. Serverless smart exit sign system dynamically changes the directions of signs to indicate the shortest safe ...
Abstract: The increase in the rate of urbanisation worldwide has led to a boom in the construction industry sector in most major cities. To cope with the associated rising demand for further services and facilities, contractors find themselves frequently obliged to extend working hours on construction sites. Construction of major infrastructure ...
Abstract: Vision-based automated recognition of worker actions has gain lots of interest during the past few years. However, existing research all requires pre-segmented video clips, which is not applicable in the real situation. Furthermore, pre-segmented videos abandon the temporal information of action transition. A joint action segmentation and recognition method, which ...
Abstract: As many countries are becoming more aware of environmental issues, both the governmental and private sectors are making more of an effort to achieve eco-friendly construction. However, the assessment of circumstances for building energy performance and green building standards of legislation are still based on two dimensions and manual work. ...
Abstract: An energy audit is a standard process to support the decision-making in the area of energy management. Nevertheless, an energy auditor does not succeed as easily and quickly in identifying all the energy streams in a facility in order to decide whether retrofitting the audited object is beneficial. In fact, ...
Abstract: This article is proposing a human state estimation system on the basis of multiple bio information implemented into a movable cover chair called 'Office Deployable Getaway'. The proposed system consists of 2 sub-systems; the first sub-system analyzes fatigue based on eye movement including blinking rate and eye closure time while ...
Abstract: The Model View Definition (MVD) approach to interoperability of BIM models requires software vendors to write export functions that can map their internal representation to the whole scope of each of many domain-specific target MVDs. However, in everyday practical use of models, a user receiving an exchanged model often ...
Abstract: Numerous previous studies have dealt with the use of automated technologies for on-site, real-time data collection to support construction project control. Most of these studies are based on the assumption, that the collected data can be compared with planning data to identify deviations and implement control actions. However, construction scheduling ...
Abstract: This paper proposes a new framework for digital design to fabrication workflow to create an effective collaboration process between human designers and industrial robots, in order to redefine the relationship between design and production. This framework aims at redefining the current one-directional workflow of design to robotic fabrication that is ...
Abstract: Modeling as-is site condition and tracking the three-dimensional (3D) location of mobile assets (e.g., worker, equipment, material) are essential for various construction applications such as progress monitoring, quality control and safety management. Many efforts have been dedicated to vision-based technologies due to their merits in cost-effectiveness and light infrastructure compared ...
Abstract: All temporary structures at the construction stage are collectively called falsework. As part of the falsework, the importance of system shoring support (SSS) is often overlooked in construction projects, thus causing increasing accidents from SSS collapse. The 2014 occupational accident statistics of the Council of Labor Affairs show that most ...
Abstract: Mobile information service can provide positioning, query, text, drawings, video and other browser interfaces. It is an indispensable object to most people. Advanced technologies have changed the manner and speed of information delivery. People need to work for a long time for buying a house. Choosing a suitable house is ...
Abstract: Site planning is critical for efficient and safe construction operations. Current industry practice primarily relies on highly experienced planers and their personal judgment to anticipate and prevent space conflicts during construction operation. Inaccurate and unreliable site space planning not only leads to major loss of time and cost, but also ...
Abstract: Action recognition and tracking of construction heavy equipment is the first step for benchmarking and analyzing the performance of individual machines and evaluating the productivity of a jobsite as a whole. Aside from direct observations, the current approaches for automatically recognizing and tracking various actions of construction heavy equipment includes: ...
Abstract: Renewable Sources are at the front line of policy discussions for replacing the fossil fuels around the world. Piezoelectric (PE) material can generate electricity in response to mechanical stress. Knowing that cars put a significant amount of stress onto the roadways every day, the use of piezoelectric transducer for asphalt ...
Abstract: Augmented Reality can be of immense benefit to the construction industry. The oft-cited benefits of AR in construction industry include real time visualization of projects, project monitoring by overlaying virtual models on actual built structures and onsite information retrieval. But this technology is restricted by the high cost and limited ...
Abstract: Recently UAV has been used in various fields such as construction and civil engineering, disaster, terrain analysis, transportation, etc. In addition, many companies from all over the world are focusing on developing UAV technology. The market of personal UAV has been growing and attracting people's attention year after year due ...
Abstract: BIM (Building Information Modelling) technology has been expanded for using in construction project during the past 20 years. However, recently its spread has been delayed than the initial expectations, due to the high-cost of BIM infrastructure development, the lack of regulations and process. In design phase, especially, collaboration based on ...
Abstract: This paper briefly illustrates the application of Building Energy Consumption Simulation (BECS) for sustainable construction education. The curricula of building-related majors have not greatly taken advantage of simulated environments as supplementary tools besides traditional methods. The main purpose of the research project was to determine how a simulation application ...
Abstract: Currently, as plant market grows up, client demands to increase construction quality, technology and to reduce construction time. Due to the vast scale of the construction site and complexity of process, plant project can have some problems of communication among the project participants, the duplication of work, errors and rework. ...
Abstract: This paper aims to describe applications of KBimCode that enables representation, definition and evaluation of building permit rules for BIM-enabled code compliance checking. KBimCode is a standardized script language. It is developed to represent the Korean Building Act as explicit computable rules. The application of KBimCode can be summarized as: ...
Abstract: Surveillance cameras are becoming indispensable tools due to their ability to ensure security in buildings. However, many organizations claim that purchasing, installing and maintaining these cameras are costly. Furthermore, current practices have conducted different 2D and 3D techniques to find the optimum camera placement inside buildings. These techniques have many ...
Abstract: Current development in structural engineering allows designers to create efficient and controlled structural systems, which lead into savings in terms of financial cost, time consumption and lack of lucidity in structural designs. Building Information Modeling (BIM) creates a great opportunity for cooperation of individual experts within one project to maximize ...
Abstract: Digital technologies, including hand-held laser scanners and locating systems, are being increasingly introduced to the construction market and have the potential to provide real-time data to create construction information modeling (e.g. shop drawings and as-built). Focusing on the unique advantage of these technologies, this paper identifies the challenges and opportunities ...
Abstract: Public administrations are encouraged to adopt actions for energy requalification of public buildings, which are responsible for considerable amounts of energy consumption. Low-cost technology improvements for energy renovation with high return on investment is a good opportunity when resource shortage hampers the adoption of expensive refurbishment. To this purpose, the ...
Abstract: This paper aims to propose an approach to automated lighting layout system in indoor space in the perspective of auto-generation of design alternatives. Lighting environment is one of the most important factors in the domain of interior design. Well-designed lighting environment enables occupants to perform their actions safely. Furthermore, it ...
Abstract: Layout planning of climbing formwork system is a prerequisite for executing efficient and cost-effective structural framework in a high-rise building construction. However, most of the formwork system layout is operated manually under heuristic approach of the supervisor, and thus is prone to errors that affect constructability of the entire construction. ...
Abstract: This paper proposes an extended Ambient Intelligence (AmI) solution that expresses intelligence with respect to both Information and Communications Technologies (ICTs) and spatial reconfiguration in the built-environment. With respect to the former, a solution based on a decentralized yet unified Wireless Sensor Network (WSN) is proposed. This is deployed across ...
Abstract: Purpose: building cladding installation process is one of the most important tasks in the construction phase. This paper will focus on the development of a fast and effective method for assembly precast concrete exterior wall panel in high-rise building. The existing method can be described as inefficient, time consuming, expensive ...
Abstract: In Finland several work sites reported errors of several centimeters between the height results when using different commercial virtual reference station networks and receiver brands. The real time kinematic results are calculated by manufacturer provided software containing in-house know-how. Further complications for calculations will arise when using physical or especially ...
Abstract: This paper aims to describe a case study of parametric interior design based on BIM (Building Information Modeling). As the practical use of BIM-based design grows, its influence expands into the field of interior architecture design. BIM makes possible to check various design plan, reach decision making in an ...
Abstract: Innovative solutions for rapid and intelligent survey and assessment methods are required in maintenance, repair, retrofit and rebuild of enormous numbers of bridges in service throughout the world. Motivated by this need, a next-generation integrated bridge inspection system named SeeBridge is proposed. To frame the system, an Information Delivery Manual ...
Abstract: This paper aims to develop the scenario-based analysis of indoor circulation using BIM-enabled parameterized quantities of a circulation path computed by BIM-enabled applications such as walking distance, spatial topology, number of turns, etc. A building circulation plays an important factor to plan overall spatial configuration based on specific purposes so ...
Abstract: Current building modeling environments lack the ability to support coordinated, incremental and systematic description of project requirements, design specifications, and the set of interactions that emerge among them, from different stakeholders, during building design. This paper discusses the prospect of a system-centric modeling framework that integrates a parametric CAD tool ...
Abstract: Construction industry must make more extensively use of automation and robots in order to increase its productivity and reduce its impact in the environment. It seems that the first steps in this direction was taken with the Building Information Modeling (BIM) paradigm. Wide adoption of BIM, particularly for the activities ...
Abstract: Limited space availability is a common issue faced by construction projects and it has great impact on project productivity and safety performance. Effective management of space is challenging due to the highly dynamic and complex nature of construction site environment. Among them is space modeling, i.e. how to capture and ...
Abstract: Some problems of efficiency in the cut and bent rebar supply chain is related to stakeholder's interaction and the flow of information between designers, constructors and rebar fabricator. In the actual process, distinctive standards are used for exchange of information between design and fabrication. The BVBS format represents a standard ...
Abstract: As recent buildings have been getting higher and larger, vertical construction lift planning and operation are key factor for successful project. Although many studies have been trying to set up a construction lift planning system at early stage before lift installation. But there are not regarding real-time control system for ...
Abstract: Nuclear power plant (NPP) outages involve a large number of maintenance activities with a tight schedule and zero-tolerance for accidents. Outage projects thus need real-time control to ensure safety and productivity. During outages, crane lifting is critical for outage control and risk management. An effective outage control method should monitor ...
Abstract: Buildings are continuously recognized as being responsible for significant amount of carbon emission to the environment. A good way to reduce this emission is through the choice of appropriate materials. However, selection of buildings materials is typically based on a number of factors, some of which can either be cost ...
Abstract: Effective progress monitoring of construction activities is always of great value to project stakeholders. It is increasingly being recognized that the success of any project is hinged on the level of awareness of the project status. Although, automated technologies have shown to potentially offer real-time information for quick decision making, ...
Abstract: The paper introduces a new approach for the representation of masonry walls in Building Information Modeling applications. The proposed representational scheme addresses the different types and levels of information required to support the design and construction of masonry walls. In particular, the paper proposes the concept of masonry wall 'region', ...
Abstract: According to the United Nations Environment Program (UNEP), 87% of the US population will be living in urban areas by 2030 which brings in an increasing demand for residential buildings in metropolitan areas all over the US. High performance houses and net zero house which equipped with photovoltaic (PV) panels ...
Abstract: Recent studies increasingly offer new Building Information Modelling (BIM) solutions and some other studies are modelling BIM adoption and implementation practices. However, the migrating process from the current practice of using desktop-based BIM to a web-based BIM covering broader activities of the entire project lifecycle is complicated. This paper intends ...
Abstract: 3D printing, also known as additive manufacturing, has become an established technology in many industry sectors for the fabrication of three-dimensional (3D) objects. The layered production of scaled prototypes and smaller series typically use automated computer controlled systems that rely on a-priori designed digital 3D models. General principles for 3D ...
Abstract: Ironwork is considered one of the most dangerous construction trades due to its fall-prone working environment. Since safety-hazard identification is fundamental to preventing ironworkers' fall accidents, engineering measures have been applied to eliminate fall hazards or to reduce their associated risks. However, a significant quantity of hazards usually remains unidentified ...
Abstract: Cranes typically represent the single biggest equipment investment deployed on a construction site. The success of lifting operations depends on addressing project conditions and adequate site safety management. The Crane Lifting Plan (CLP) is a safety document wherein the information required for planning crane lifting operations are encapsulated and analyzed. ...
Abstract: The industry's interest in building façade maintenance is rising with the growing number of new high-rise buildings in the metropolises. The conventional method of cleaning the façade of high-rise buildings relies on the use of ropes, gondolas, and the winch system involving human labor. Recently the building maintenance unit (BMU) ...
Abstract: Because of the increasing number of high-rise buildings and large glass facades and the resulting problem of safe and effective maintenance, many studies have been going on progress to develop automated window cleaning systems in the last few years. But the research has not been going on progress to make ...
Abstract: With the architectural environment is constantly changing such as high-rise buildings, high-ceilinged space, and special space constantly constructed, thus the fire disasters are becoming diverse and difficult to predict. Therefore, the development and application of building's fire disaster prevention integration system become an urgent requirement for prevention the disaster and ...
Abstract: One of the main causes of pavement rutting is the repetitive action of traffic loads which results in the accumulation of permanent deformations. As a result, it is important to understand the characteristics of the permanent deformation behavior of asphalt mixes under repeated loading and to build the accurate mix ...
Abstract: Current inspection process has productivity issues, such as double handing information, time-consuming data aggregation, lack of information transparency and so on. About inspections for plant maintenance, site managers encounter difficulties in getting global pictures tracing a significant amount of inspection information at management perspective. The decision-making is based on paper-based ...
Abstract: Heat stress is a well-known occupational hazard, and climate change together with the increased frequency and intensity of extreme heat events has made risks more severe and widespread. The liquefied natural gas (LNG) construction industry is found to be more susceptible to heat stress than other industries because LNG workers ...
Abstract: Struck-by-equipment hazard, i.e, contact collision between worker-on-foot and construction equipment or between equipment and equipment, is a major cause of injuries and fatalities in construction. A variety of smart technologies and systems have been developed and utilized to alleviate the risks of this type of hazard. However, most of the ...
Abstract: Recent advances in data and information technologies have enabled extensive digital datasets to be available to decision makers during the life cycle of a civil infrastructure project. However, much of the data is not yet fully reused due to the challenging and time consuming process of extracting the desired data ...
Abstract: The US National BIM Standard proposes facilitating information exchanges through Model View Definitions (MVDs). An MVD, defines a subset of the IFC schema that is needed to satisfy one or many exchange requirements of the AEC industry. In the MVD definition for precast concrete domain specified in precast concrete Information ...
Abstract: In the architecture, engineering and construction (AEC) industry model-based data exchange methods are mainly based on manual file transfer, data conversion, and data-merge. File-based Building Information Model (BIM) data exchange is either in vendor specific file formats or neutral format using Industry Foundation Classes (IFC). IFC Model View Definitions (MVDs) ...
Abstract: The manufacture-installation of prefabricated modules for the refurbishment market needs to be lifted to a more integrated, systemized and automated level, in order to transform the existing buildings stock towards near zero energy consumption at reasonable cost. In building renovation, prefabricated modules have to be industrially customized to each building, ...
Abstract: Stonemasonry is a traditional industry with a long history. Due to increasingly competitive markets in a hazardous work environment with high physical strain on the stonemasons, a system was developed to automate natural stone surface processing in order to diminish repetitive movements in manual labor. This is achieved using a ...
Abstract: In this study, a system which utilizes Cloud technology to establish a data center to store and manage multiple BIMs simultaneously has been developed. This BIM data center can not on-ly handle the big data of massive BIMs using multiple servers in distributed manner, but also can be accessed by ...
Abstract: Choosing the optimal strategy for the seismic retrofit of an existing building is a difficult problem. This difficulty increases in the case of complex buildings systems with different strategic requirements in terms of organization layout and structural features. This paper contributes to solving this complexity by combining management and technical ...
Abstract: This paper introduces an effort to develop a national-level building information modeling (BIM) knowledge base system that includes various BIM-related statistics and best practices. This study is being conducted as part of a US$5,800,000 national research and development project in South Korea to build open BIM-based building design standards and ...
Abstract: In the pipe installation and management stage which takes the greatest proportion in most construction projects, workers use 2-D CAD plans to inspect 3-D shape construction. Moreover, duplication, error, omission or rework of tasks due to a communication limitation between project participants and inefficient information management can occur, which results ...
Abstract: Wide spread monitoring cameras on construction sites provide large amount of information for construction management. The emerging of computer vision and machine learning technologies enables automatic recognition of construction activities from videos. As the executors of construction, the activities of construction workers have strong impact on productivity and progress. Compared ...
Abstract: At the end of 2013 it is estimated that there are nearly 13,000 apps related to design and construction available on Apple's iPad. with this many apps available in the market finding the right app for a construction manager can be a challenge. The purpose of this research was to ...
Abstract: To improve the efficiency of construction site management, we developed a system that provides a three-dimensional model (3D model) textured with images of the status of working areas where construction work is under way. The system has already been applied to a construction site for evaluating its practical performance. The ...
Abstract: The securing of alternative energy is essential, since the Republic of Korea (hereafter, ROK) depends on 97% of its supply from overseas. Since G20 Summit Conference of 2011, it became possible to receive natural gas from Russia for 30 years starting from 2015 with mutual cooperative agreement for the procurement ...
Abstract: While Building Information Modelling (BIM) is considered to be highly beneficial for managing construction projects over initiation to completion phases, the perception among the professionals is quite diverse especially in the Australian Construction context. Such a diverse viewpoint is due to lack of objective analysis of cost versus benefits and ...
Abstract: Earthwork equipment accounts for a large proportion of the fatalities on construction sites. In the period between 1992 and 2002, struck by vehicles and struck by objects (e.g., vehicle parts, vehicle loads, or falling vehicles) were identified as the causes of 30% and 24% of deaths on excavations sites, respectively. ...
Abstract: One of the most common operations to any construction project is earthwork. In fact, most, if not all, construction projects begin with earthwork activities. These activities require heavy equipment, are generally quite costly and consume a considerable amount of time. on another hand, the construction industry is becoming increasingly competitive ...
Abstract: Assessing the effectiveness of energy conservation measures (ECMs) before their actual implementation in buildings is critical. It has become the mainstream to employ calibrated building energy models to quantify expected energy savings from ECMs and justify their application. However, there is empirical evidence that reveals noticeable discrepancies between simulated and ...
Abstract: IT use in construction has grown lately and it has helped project teams to better understand and improve sizing of work packages. This supports decision making when selecting construction strategies, which is one of the main problems associated to projects late completion and cost overruns. Large excavation projects can benefit ...
Abstract: Structural designers especially in India use STAAD (Structural Analysis And Design) software to execute the structural analysis and design. This analysis and design follow typical steps in sequence starting from model preparation by defining nodes and elements, material properties, support conditions, loads along their combinations, analyses, design options, etc. During ...
Abstract: The Google glass is a next generation technology for information management. This technology has a great chance of advancing information exchange at construction sites. When Google glass is applied to construction management, the application can free construction supervisors from the burden of holding paper documents such as drawing and manuals ...
Abstract: As the Architecture, Engineering, Construction, and Facilities Management industry undergoes a profound change with Building Information Modeling (BIM), it seems the right moment to properly re-structure the inherent processes to promote a new wave of innovation. To leverage digital information from each individual project into business value for the whole ...
Abstract: Presenting significant building or engineering 3D-models is a crucial part of the planning, construction and maintenance phases in terms of collaboration and understanding. Especially in complex or large-scale models, immersion is one of the major key factors for being able to intuitively perceive all aspects of the scene. A fully ...
Abstract: Nowadays, many leading construction companies are still using 2D drawings, Microsoft Excel or other spreadsheet programs to prepare tenders regarding MEP trades. 2D drawings are scanned and the quantities of commodities are extracted and imported into spreadsheet programs. This method is not accurate and transparent. In addition, too much time ...
Abstract: Building Information Models (BIMs) are becoming the official standard in the construction industry for encoding, reusing, and exchanging information about structural assets. Automatically generating such representations for existing assets stirs up the interest of various industrial, academic, and governmental parties, as it is expected to have a high economic impact. ...
Abstract: Buildings energy audits ask for a thorough analysis of the audit object. According to the series EN 16247, all the factors affecting actual energy consumption must be assessed and estimated. One of the hardest contributions to be quantified at this stage is air change rates of buildings, particularly when no ...
Abstract: In many civil engineering tasks, dimensional analysis of environmental objects is significant for spatial analysis and decision-making. Tasks such as as-built geometry generation need to efficiently interpret the critical dimensions of specific objects (e.g., diameter of a pipe, width of an opening) in a potentially cluttered environment based on data ...
Abstract: Recent studies show a great potential of improving construction productivity through using real-time applications to measure change orders and other objects to create as-built. As an enhancement to this promising concept, this paper presents the process of implementation of an efficient framework for as-built Building Information Modelling (BIM) using a ...
Abstract: The pose of an articulated machine includes the position and orientation of not only the machine base (e.g., tracks or wheels), but also each of its major articulated components (e.g., stick and bucket). The ability to automatically estimate this pose is a crucial component of technical innovations aimed at improving ...
Abstract: Recently BIM technology has been expanded for using in construction project. However its spread has been delayed than the initial expectations, due to the high-cost of BIM infrastructure development, the lack of regulations, the lack of process and so forth. In design phase, especially, collaboration based on BIM system has ...
Abstract: This paper aims to describe an approach of implementation for an interpreter that translates the human natural language into a computer-readable form. Selected building permit-related sentences in Korea Building Act are within the scope of this paper. Among the various applications of BIM, the benefit of automated design assessment has ...
Abstract: So far, the use of Building Information Modeling (BIM) to support automatic prefabrication and on-site assembly processes during a construction project has been limited. The modeling and management of information concerning the diverse elements involved in these construction processes, such as activities, objects, flows and operations, has not been sufficiently ...
Abstract: One of the most important issues during the planning of a construction project is to maintain the quality of the design planning constantly at a high level. Therefore this quality must be checked continuously in terms of accuracy and compliance to the applicable codes and guidelines throughout the duration of ...
Abstract: Construction progress monitoring is an essential but time-consuming work on all construction sites. This research introduces a method to facilitate the as-planned versus as-built comparison through image based monitoring. A dense point cloud is reconstructed from the images that is compared to an existing 4D building information model (BIM). However, ...
Abstract: Nowadays precast concrete elements are widely used in buildings, bridges, and other civil infrastructure facilities because precast elements allow rapid construction and high precision quality control. However, the quality inspection of precast concrete elements primarily relies on manual inspection, which is time consuming and error-prone. Recently, terrestrial laser scanner (TLS) ...
Abstract: Present approach to education within most design, construction and built environment schools is reported to be fragmented. As the industry moves towards more collaborative and integrative paradigms, the education sector needs to start shaping the 'pipeline' of graduates that can better fit the changes occurring in industry. This paper is ...
Abstract: Most of bridges in the United States (US) were constructed long ago, so they have only 2D drawings and sketches, depicting the design information, as part of their documentation. Moreover, since routine inspection is conducted once every two years, it is challenging for inspectors in terms of situational and spatial ...
Abstract: Technology implementation has become crucial to reduce costs and diminish errors in construction projects. In massive projects such as tunneling construction, computational modeling can be useful for several planning, execution and control activities during the lifecycle of the project. An analysis of the building requirements was done in a particular ...
Abstract: The current on-site (stick-built) construction process is hampered by inefficiencies and limited in terms of opportunities for technological innovation. The efficiency of on-site construction practice is contingent upon the effectiveness of the specific model used to communicate information. Architects use CAD models to develop a project design, while construction engineers ...
Abstract: The Cave Automatic Virtual Environment (CAVE), first introduced in 1992, is a projection-based Virtual Reality system that surrounds the viewer with 4 screens arranged in a cube. Those who are surrounded by large screens, displaying the viewer-centered images of a 3D computer model, could gain a certain level of feeling ...
Abstract: Safety as well as productivity performance in construction is often poor due to congested site conditions. We lack a formalized approach in effective activity-level construction planning to avoid workspace congestion. The objective of this study is to investigate and prototype a new Building Information Modeling (BIM) enabled approach for activity-level ...
Abstract: Over the last few years, to increase the competitiveness of domestic construction industries, the governments of US, UK, Japan, and other developed countries have introduced Building Information Modeling (BIM) as part of their support policy; as a result, BIM information is increasing rapidly. In this regard, the need for studies ...
Abstract: Building Information Modelling (BIM) represents a long-term investment that could allow reduction of time and cost control by optimising design and construction processes. It also ensures greater effectiveness of control systems. The paper is focused on a public procurement case study regarding the BIM-based validation and construction optimisation of an ...
Abstract: The selection and development of a project location is critical to the success of a green building project. LEED (Leadership in Energy and Environmental Design) is one of the most popular Green Building certification systems in the world. Traditionally in LEED design, architects and designers have to analyze project location ...
Abstract: Dealing with renovation and restoration of historical building heritage, it often means to face several difficulties concerning the way of representing not only the ancient building and the design ideas, but also the phases of interventions on site. The designers have always to take into account a range of possible ...
Abstract: The model based quality assurance method has been developed to replace traditional manually made quality measurements. The idea is to use the excava-tor's machine control system to document the accu-racy (height and width) of the road at the same time as the structure is completed. This new method has been ...
Abstract: Terrestrial laser scanning is finding an increasing range of applications in the Architectural Engineering Construction and Facilities Management (AEC/FM) industry. While significant progress has been made in the performance of laser scanners and multi-scan registration, planning for scanning -- i.e. the selection of locations for the scanner and registration targets ...
Abstract: Different possibilities to utilize information modelling and automation in roadway maintenance and renovation, have been studied in Finland during 2010 -- 2014. Mobile laser scanning was used for the initial data surveys. For the surveys and later design and construction phases, there are generally two alternative methods available for the ...
Abstract: This paper aims to describe rule checking method, classification and its demonstration. As applications of BIM extends, there have been some challenging projects on automated building compliance checking. The current rule-making method is developer-centered and thus is difficult to define rules without propound programming knowledge. This paper introduces high level ...
Abstract: The use of Building Information Modeling (BIM) technology to support building design and construction practices is becoming a standard in the U.S. and worldwide, and various benefits of implementing BIM, such as reduced RFIs and change orders, have already been proven. However, efficient integration of BIM with facility management (FM) ...
Abstract: There is a heavy reliance on the skill set of human workers on a building construction site. Most building structures are compromised by human error due to the following partial list of factors such as inadequate training, non-availability of the proper toolset, inaccurate measurement systems, incomplete data, incorrect interpretation of ...
Abstract: higherThe higher the contrsuction site, the longer the vertical length of movements of construction lifts carrying workers or material. At skyscraper high-rise construction, an experienced supervisor manages the lift operation for vertical moving of material. Therefore, there are needs for computational tools to assist managers on site to make a ...
Abstract: Recently, advanced and semi-automated equipment is used for earthwork project. For automated and intelligent earthwork management, surveying method needs to be improved and updated to acquire and store on-site information. Unmanned Aerial Vehicles (UAVs) was considered as an important technology and using UAVs in various areas are prominent area in ...
Abstract: Optimal energy management of underground transportation systems is widely recognized as a key aspect for significant energy savings at regional level. The three-year long EU funded 'Seam4us' research project (2011 to 2014) aims to create a system for optimized integrated energy management, relying on the Passeig de Gracia metro station ...
Abstract: There has been an increasing need for diagnostic methods to detect energy leakage in order to reduce energy consumption of buildings. Currently, an infrared thermography is used as a preliminary investigation tool because it does not cause physical damage during the exploratory investigation. In practice, diagnosis of the building using ...
Abstract: A smart exit-sign system is an exit-sign system that can proactively orient the direction of an exit sign toward the shortest safe path in fire situations. In a previous study, an automated direction setting algorithm for a smart exit sign was proposed that assumed the exit signs were controlled by ...
Abstract: Various green projects were executed to reduce the energy consumption in building sector. In particular, it is necessary to improve the thermal insulation performance of existing residential buildings. Even though it is critical to evaluate the thermal insulation performance in operation and maintenance phase, most of the policies and previous ...
Abstract: Localization and tracking of resources on construction jobsites is an emerging area where the location of materials, labor, and equipment is used to estimate productivity, measure project's progress and/or enhance jobsite safety. GPS has been widely used for outdoor tracking of construction operations. However, GPS is not suitable for indoor ...
Abstract: Historically, bridges earned high importance in trade and commerce, wars and transport. Nowadays bridges consist one the aspects of development of the infrastructure in a country. The main role today of such structures is to interconnect different terrestrial parts. In a fast growing state like the UAE, we see frequently ...
Abstract: In this study, fleet control technology that can maximize coordination between earthwork equipment such as excavators, bulldozers, graders, dump trucks and rollers and a site office is introduced. In order to enhance the performance of bucket and blade based equipment, machine guidance technology is employed. The site office plans and ...
Abstract: Approximately 17% of the 721 fatalities in the US in 2011 resulted from workers colliding with objects or equipment in the work environment. Construction site conditions often create hazardous proximity situations by requiring workers-on-foot and heavy equipment to be in close proximity. Current safety management, incl. industry safety best practices, ...
Abstract: Aligning and plumbing of construction assemblies is a fundamental problem because of reliance on manual solutions for geometric feedback control problem involved with practices such as pipefitting and steel structures erection. Where defective components and segments are not well controlled, the errors propagate in larger components and therefore cause more ...
Abstract: As-built building information models (BIMs) need to be represented with the composing building elements having their own functional semantic information. In order to generate such as-built BIMs with composing building elements, it is necessary to recognize each of the semantic elements and separate them from each other. In addition, the ...
Abstract: Launching Girder is an equipment extensively used in prefabricated segmental construction of viaducts. It is used to lift, assemble, post-tension and load the spans of bridges constructed using the incremental launching method. Currently, there is limited automation in the operation of launching girders worldwide. Construction efficiency can be improved significantly ...
Abstract: This article presents an overview of the SmartSite research project that adopts machine learning, decision theory and distributed artificial intelligence to design and test a multi-agent system (MAS) for asphalt road construction. SmartSite puts major emphasis on sensing and communication technologies that integrate real-time automated information exchange in the supply ...
Abstract: We introduce a low-cost robotic system designed to enable the safe, objective and efficient visual inspection of tunnels. The system captures high resolution images and processes them to produce maps of tunnel linings that are suitable for detailed inspection. It is unique in that the total cost of hardware is ...
Abstract: Practical Tunnel-boring Machine (TBM) guidance systems usually use sophisticated instruments to obtain the orientation of the TBM. These systems require frequent calibration and work shutdown, making the procedure complex and time consuming. Besides, the majority of current TBM guidance solutions cannot provide the position of the invisible cutter head analytically ...
Abstract: The planning of construction process is crucial for successful project management and based on which all other sub-tasks and activities follow. Labour-intensive construction process which relies on field workers' own intuition and interpretation, has been too complicated to control, which can lead to mistakes, wasted time, and fatal accidents in ...
Abstract: The need for ameliorating the physical properties of existing buildings' envelopes is growing. For that purpose, a widely used solution is to add new layers on the external face. Each layer performs a function; insulation, moisture barrier or finishing. Energy harvesting devices can be installed on too. Each of these ...
Abstract: Vision-based pose estimation, in which optical cameras monitor fiducial markers to determine the three dimensional positioning and orientation of an articulated machine's end effector, offers a promising low-cost alternative to currently available sensor packages that are non-ubiquitous and cost prohibitive for a large portion of the market. Whereas traditional sensor ...
Abstract: Almost a half century ago, Japan started to increase her national wealth and to invest social infrastructures. Those activities could have accelerated its economy and brought further national wealth. Now spending many years almost all those facilities get old and some of them are severely damaged. Appropriate maintenances are quickly ...
Abstract: Heavy industrial construction project requires the installation of hundreds of large and heavy modules. Effective utilization of lifting equipment is critical to ensuring economical project start-up. Capturing and evaluating global crane relocation, movement and decommissioning as well as particular object lift study and digital visualization are also essential for budget ...
Abstract: Background: Optimizing and improving energy performance of buildings while maintaining occupants' comfort are primary goals for building managers. In order to analyze a building's energy performance and make informed retrofit, maintenance, or operational decisions, decision-makers need access to credible real-time data illustrating how building systems are being used by its ...
Abstract: This article introduces a new approach of an intelligent equipment attachment identification system based on passive radio frequency sensing technology that provides operators with the assurance the correct attachment is used while all hydraulic functions, which are so far set manually, are maintained. The article first provides an introduction to ...
Abstract: Among the various domains of the construction sector, tunnelling exhibits its own specificities in particular in terms of risks. Several techniques have been developed through the years in order to make excavation works more efficient and safer. Tunnel Boring Machines (TBM) were invented some 60 years ago and the concept ...
Abstract: Teleoperated robot systems have been developed for operator to allow for various tasks via the remote control system. Even though they have been used in industrial applications such as construction, assembly, maintenance and etc., we cannot find a multi-agent remote controlled robot system as 1:N (here, '1' refers to the ...
Abstract: Off-site construction is gaining more consideration from builders in North America, as it provides better quality products in less time and cost. Panelized construction is an increasingly popular off-site construction method in which components are panels fabricated off-site then transported to the site for assembly. Panels are manufactured at a ...
Abstract: Due to an increasing need for buildings to meet sustainability criteria, the deconstruction and refurbishing market is a thriving market worldwide. Considering that construction and demolition waste account for a large proportion of all wastes produced, novel and scalable solutions for systemised building deconstruction have to be developed. Systemised building ...
Abstract: As public buildings are responsible for considerable amounts of fuel consumption, public administrations are encouraged to adopt interventions for energy requalification of their real estates. In particular, low-cost energy requalification with high return on investments is a good opportunity when resource shortage hampers the adoption of expensive refurbishment. However, in ...
Abstract: Using the abstract idea of considering a building as a human body. For instance if we consider the structure and envelope of the building to be the skeletal system and the skin, then the technological, managerial, production and assembly systems of the building would be the nervous system and cardiovascular ...
Abstract: The present research investigates the potential to reduce the environmental impacts of structural systems though a more efficient use of materials. The main objective of this study is to explore and to develop an automated and integrated methodology that utilises Building Information Modelling's (BIM) capabilities combined with structural analysis and ...
Abstract: Today more than ever, the world of Public Procurement is regulated by a large and diverse body of law, constantly updated and enriched. The environmental issue is one of the subjects that is gaining more and more on the international level and so the new regulations of Procurement must consider ...
Abstract: Management of construction processes is extremely difficult due to the nature of the construction industry. The ability to make the right decisions during the construction process ensures online monitoring of process in progress and the environment. Flexibility seems to be an advantage for solve mentioned problems in the case of ...
Abstract: Disaster prevention and response is becoming increasingly concerned not only with disaster mitigation, but also with the integration of hazard-related data. Take flood hazards for example, decision makers require precipitation data and the critical threshold value to judge when to evacuate the residents. Therefore, a system that can provide key ...
Abstract: There is acute shortage of skilled worker globally against increasing demand of infrastructure, changing work cycle; absenteeism, etc. Mechanisation, automation, and several approaches have been attempted to overcome this shortage that resulted in marginal improvements. The primary reason for this can be attributed to insufficient coordination among key stakeholders. To ...
Abstract: We develop the idea of creating wastewater treatment facilities for biosphere compatible buildings with maximum-closed cycles with respect to water and energy. The idea started from experiments with closed-loop ecological Life Support Systems for space flights carried out in the 60s-80s last century. Water recycling is accomplished by functioning the ...
Abstract: Construction companies suffer huge losses due to labor fatalities and injuries. Since more than 70% of all accidents are related to human activities, detecting and mitigating human-related risks holds the key to improve the safety condition of construction industry. Many research reveals the psychological and emotional conditions of workers could ...
Abstract: The increasing complexity in the construction field is linked with the number of products and solutions that are constantly developed and which consider all aspects of the build. Referring to the energy efficiency, the EU regulations are becoming stricter in order to solicit the market towards building components able to ...
Abstract: The Hong Kong construction industry has been a powerful engine behind the city's rapid urban development. It serves to improve the living environment and standards, create a connected society, promote Hong Kong's sustainable development, and enhance Hong Kong's long-term competitiveness. To tackle manpower shortfall and to enhance its efficiency, the ...
Abstract: This paper describes an approach to the assessment of building circulation by using quantitative data and applying its weight. People have considered building circulation because of various requirements as well as design decision making. This is why assessment of building circulation plays an important role before construction stage. BIM (Building ...
Abstract: On formwork, more than 50 percent of construction cost is labor cost, since large number of skilled workers are required for site work. Therefore, it is important to reduce man-hours in order to improve productivity in this area. To reduce man-hours, it is necessary to improve work methods and to ...
Abstract: The objective of sustainability in construction is generally stated as achieving a balance between economic, environmental and social impacts of projects. However, while significant literature is available on economic and environmental impacts; little has been done to investigate social impacts of construction projects and methods for evaluating such impacts. This ...
Abstract: The structural system of a building is usually selected by comparing the structural performance, costs and ease of construction of different alternative systems. Other sustainability criteria including carbon footprint have been overlooked traditionally in making such a decision. This paper aims to highlight the important effect of the choice of ...
Abstract: The paper introduces a new method for infrastructure construction project quality control, which enables real-time monitoring of project progress and quality. The tradition method for quality control reporting in construction projects is measuring the built surfaces via total station or GNSS rover and then using surveying CAD software to produce ...
Abstract: The significant increase in the world population living within close proximity to coastlines has assigned further importance to coastal protection structures. This importance has been even ascertained given the increasing risks posed by climate change. from this standpoint comes the importance of maintenance and repair strategies for coastal protection structures ...
Abstract: Current methods for surface flatness control in construction are based on sparse measurements and therefore may lead to inaccurate and imprecise results. Previous research has shown that Terrestrial Laser Scanning (TLS), with the accuracy and density of 3D point clouds it can provide, could support more complete and reliable control ...
Abstract: Getting fuels, economizing with them and effective utilization of them belong to the most complex problems of the present and future. Energy saving is one of the most important environment factor in construction company with developed and implemented Environment Management System (EMS) according to ISO 14001. We try in our ...
Abstract: Although many studies were carried out to identify the range of risky events in construction projects and the recommended response and precautionary strategies, little has addressed the means of making such decisions in an optimal way. Unfortunately, complex projects are marred with numerous interconnected causes and effects, which make project ...
Abstract: Increase of unpredictable and severe climate events has led to development of technologies for climate change adaptation. Types of adaptation technologies for climate change vary in terms of technological characteristics and the range of their adaptation impact as well. For accurate economic assessment, this paper presents a method to value ...
Abstract: Productivity indicators in industry suggest that conventional construction methodology has reached its limits. This is true even in highly developed nations, where numerous construction projects cause considerable time, quality and cost deficits. This indicates the necessity of an overdue transformation of the whole sector--in particular of its procedural and technological ...
Abstract: The need for automation has conventionally been driven by the shortage and rising costs of skilled workers. There has been a perception that in emerging countries such as India, the priority for automation is low due to the availability of skilled workers. However, the massive scale of infrastructure development planned ...
Abstract: Productivity is a comprehensive problem in many countries. Particularly in construction and resources sectors, low productivity will potentially discourage future investments as building assets is becoming more and more unaffordable and unsustainable. In recent years, Building Information Modelling (BIM) is becoming much more active than ever. In order to fully ...
Abstract: Access to sustainable, affordable and secure energy is one of the major Australian strategic priorities to maintain and improve the health of Australians, sustain economic growth, and to mitigate climate change. Australia is investing in clean, efficient, reliable energy systems to secure a prosperous and, environmentally sustainable future. In addition, ...
Abstract: Conventional construction reached its limits. Numerous construction projects, such as Cologne subway site causing a billion euro collapse of a library containing cultural heritage assets, the x times cost overruns of Elbphilharmony Hamburg and the x tens of thousands quality defects of Berlin Brandenburg Airport indicate the necessity of an ...
Abstract: Leveraging the advanced estimation and control algorithms for power systems have always been associated with the renewable energy sources, rational power generation, consumer stimulus, emission reduction, as well as economically viable objectives. The model predictive control (MPC) strategies, that employ an economic-related cost function for real-time control, has lately proved ...
Abstract: Infrastructure robotics is about research on and development of methodologies that enable robotic systems to be used in civil infrastructure inspection, maintenance and rehabilitation. This paper briefly discusses the ...
Abstract: Bridge deck inspection is essential task to monitor the health of the bridges. This paper reports the data collection and analysis for bridge decks based on our novel robotic system which can autonomously and accurately navigate on the bridge. The developed robotic system can lessen the cost and time of ...
Abstract: Electric power industry is undergoing a profound change. The change is driven by technical, economic and environmental factors. The emerging challenges are particularly significant for distribution grids, where the level of automation or smartness is relatively low. With the push for energy conservation, demand-side management (DSM) and demand response (DR) ...
Abstract: Users are increasingly expecting intelligent behavior from automated building systems. However, incorporating and integrating user preferences in an automatic control algorithm is a complex task. In most commercial systems, control is done through local search techniques ...
Abstract: Satellite-based positioning is becoming the prevalent solution for positioning and alignment of drill holes in open pit mines, quarries and construction sites. This is due to the accuracy and convenience of the systems, leading to improved blasting ...
Abstract: Tunnel construction method using a tunnel boring machine (TBM) is commonly adopted for building underground infrastructure, such as railways, roads, sewers, or utility pipelines. TBM tunnelling entails precise guidance of the machine in the underground space, as well as effective construction management and project control. The research aims to address ...
Abstract: This paper presents a systemic Bayesian network (BN) based approach for dynamic risk assessment for adjacent buildings in tunnel construction. This approach consists of four steps in detail, namely, hazard analysis, BN learning and BN-based risk analysis. In the dynamic risk analysis framework, the predictive, sensitivity and diagnostic analysis techniques ...
Abstract: Few robots are found on the worksite today and the construction process has remained unchanged since pre-industrial times, the only major advancement being the replacement of human and animal power with motors, despite research efforts in construction automation. Contrarily, the planning stages of projects have benefited from advances in simulation ...
Abstract: The paper deals with the use of biological life support systems, initially created for long-duration space flights [1, 2], for the solution of problems with the sustainability of metropolitan cities, which must meet the requirements of decrease of environmental load. Motivated by applications in issues of design of water purification ...
Abstract: Open-sea ship-to-ship transfer operation is an alternative way to avoid port congestion. This process involves a relatively small vessel which transports containers between the harbour and a large cargo ship equipped with a container crane. However, the presence of disturbances and uncertainties caused by harsh open-sea conditions can produce an ...
Abstract: In modern days, there has been an increasing trend to build high-rise buildings. Until now, the methods to maintain building wall have relied on human efforts. However, there exist dangers and difficulties caused by height of buildings. Due to this problem, the need for system that can maintain building wall ...
Abstract: Automated dynamic management of road construction sites has been studied within the DigiINFRA research project in Finland. A review of currently available commercial solution, including most popular commercial softwares and systems in global markets (Topcon Sitelink3D, Trimble applications, Novatron Xsite, Leica iCONTelematics, Infrakit), is drawn. Test results of the last ...
Abstract: This study focuses on the development of a lightweight building information management (BIM) shape format (LBSF) structure to represent largevolume BIM geometry objects using the geographical information system (GIS) with building facility management. Recently, BIM-based facility management with GIS has been researched with regard to urban facility management. To implement ...
Abstract: Recently, Building Information Modeling (BIM) technology has attracted much attention in the Architecture, Engineering, and Construction (AEC) industry. Despite the growing interest in BIM technology, the benefits of BIM have not yet been fully realized during the course of implementation of BIM because of its low adoption rate among architects. ...
Abstract: This research aims to develop a graph-based representation of building circulation as an extended version of the metric graph structure named UCN (Universal Circulation Network). There are several different methods and algorithms to represent pedestrians indoor circulation for architectural purposes. The UCN has introduced a BIM-enabled approach to measure walking ...
Abstract: Previous studies on automated fire-egress guidance systems have focused on providing the shortest path information from a specific person at a certain point to the closest exit mostly using a mobile device. This study aims to develop a Smart Exit Sign system that can detect dangerous areas in real time ...
Abstract: Single-households, one of the new housing types to emerge recently, seem to experience difficulties in the management of energy use due to the short duration of their residence. However, there has been little study on effective energy management in singlehouseholds. If we can find solutions that reduce energy consumption through ...
Abstract: Modular-based heavy construction projects are recognized as faster, safer, and more efficient than traditional those completed through on-site construction methods. The successful completion of these projects relies on an efficient material handling system, especially when mobile cranes are utilized to satisfy heavy lift requirements. However, engineers are faced with the ...
Abstract: The modular construction manufacturing (MCM) process is a complex operation that combines line flow product movement with a complex activity precedence network. There are physical constraints related to the given facility, as well as logical constraints caused by demand variation. In order to change production line layout and make improvements ...
Abstract: With the increasing popularity of Building Information Modeling (BIM), several research studies have focused on its application in the construction industry, and advancements such as developments of BIM-based tools for construction scheduling and cost estimating have been carried out. Nevertheless, these tools are each developed only for one particular aspect ...
Abstract: Productivity is critical to large and complex capital projects in sectors like infrastructure and resources. It normally relates to a significant scheduling issue when pursuing both time and cost objectives. A poor planning of project schedule might incur both excessive labour cost and project delay. Looking at scaffolding activity, a ...
Abstract: Cost estimation is economically critical before starting off a construction project. One of the essential assignments for materials prices prediction is to control the cost of inventory. Even though the prediction system based on support vector machine (SVM) recently has been emerged as a favourable choice, the prediction accuracy of ...
Abstract: A timely progress monitoring is essential for the success of a large-scale construction project. It enables a site manager to properly prepare resources and make plans for the remaining part of the construction activities. Recently, mobile computing and image processing have been investigated as a means of automating progress monitoring. ...
Abstract: The theme of this contribution fits astride two strands of Construction Management Studies: health and safety risk management on construction site and constructability design approach. Specifically we faces two problems usually considered separately: the lack of specificity, synergy, effectiveness between safety planning and construction process and the lack of concurrence ...
Abstract: Tower crane layout design and planning within construction site is a common construction technical issue and regarded as a complex combinatorial problem. To transport heavy materials, such as rebar, formwork, scaffolding, equipment and steel, tower cranes are needed and should be well located to reduce construction cost and improve safety ...
Abstract: While comprehensive and ongoing competitive intelligence (CI) is employed in a variety of industries to provide valuable input for broad strategic decisions, the construction industry lags behind in adopting this technique. This paper presents a CI model for use in the construction contractor selection process, which is a critical element ...
Abstract: This paper develops a systematic approach with detailed step-by-step procedures for safety management of existing buildings adjacent to tunneling excavation. The potential safety risk of a specific nearby building is assessed within four different risk levels, with the spatial neighbor relation (hazard parameter) and the building health condition (vulnerability component) ...
Abstract: The construction industry is multi-disciplinary and collaborative in nature. Project managers are expected to understand the relations, roles and responsibilities in this collaborative working environment. Construction project managers need to be equipped with skills to process and understand the principles of interdisciplinary working. In order to keep pace with industry ...
Abstract: The construction industry in the world is considered to be one of the most dangerous industries, claiming each year the lives of many workers. In particular, the boom in the construction industry in the Middle East over the past decades was accompanied with significant increase in death tolls and injuries ...
Abstract: Several factors have contributed to the growth of BIM usage in the global construction industry, including availability of appropriate software and hardware tools, the opportunity to minimize errors, waste & cost and increasingly competitive markets [1][2]. An emerging approach in the construction industry is the use of 5D-BIM, by combining ...
Abstract: For the past thirty years, Lebanon has been experiencing cuts in electricity, thus compelled to import it and use noisy and extremely unhealthy generators. This happened at very high prices with even mediocre quality. Hence, an adequate solution to this shortage in electricity supply can be achieved through the use ...
Abstract: Successful implementation of construction projects depends on accurate cost estimation. Cost analysis of construction work items is essential to a cost estimating process for contractors. However, current cost analysis tasks cannot be implemented effectively in practices. Therefore, this study proposes an ontology-based representation framework that aims to address such practical ...
Abstract: The economic and environmental benefits achievable through concrete recycling depend on many parameters including, but not limited to, travelling distances between demolished building and concrete recycling plant and/or landfills, prices of natural and recycled aggregates and the desired quality of the recycled aggregates which itself depends on a number of ...
Abstract: The environmental and safety performance of construction sites are increasingly regarded as critical factors that need to be monitored for the successful completion of construction projects. Research has also repeatedly highlighted the need to minimise the carbon footprint of the construction process and enhance the capacity of the project team ...
Abstract: Efforts undertaken in identifying, analyzing and assessing project risks are only made good use of when proper risk treatment strategies are decided upon and pursued. Based on the criteria established by senior management, the risk management plan goes about defining how each risk is to be handled. There are options ...
Abstract: The uncertain environment in which construction projects are executed poses a challenge to project managers and planners alike as they go about planning and controlling these endeavours. Statistical and simulation models have been devised over the years to assist in estimating the time and cost of construction activities while accounting ...
Abstract: Mobile cranes are used to lift heavy modules in industrial projects. These heavy modules are often prefabricated and each project consists of a large number of lifts (e.g., a typical industrial project may have between 150 and 1000 modules to be lifted). To ensure the safety and efficiency of these ...
Abstract: Today several activities of a construction project can be supported with information technology tools. However, there have been many cases of technology adoption failure. Lack of understanding about the process of technology adoption is often pointed out as the reason. This paper is based on a study to explore BIM ...
Abstract: In the construction industry, many individual trades have to work simultaneously. This creates many potential difficulties on the construction site, primarily in relation to efficiency loss and construction period extension. To improve efficiency, a new interior finishing system for dwelling was developed. By using the system, both interior finishing and ...
Abstract: An important set of information provided through Building Information Modeling (BIM) platforms are quantitative properties of design elements and assemblies. The capability to extract or deduce such quantitative properties from explicit and implicit model information is essential for bidding, procurement, production planning, and cost control activities in the AEC projects. ...
Abstract: Bridge construction projects are inherently complex and iterative, and these place great demands on project management to apply innovative approaches for more comprehensive analysis of performance data under uncertain conditions. Although new technological-based methods such as simulation have proven to be powerful techniques to cope with cyclic and uncertain project ...
Abstract: Construction site layout planning (CSLP) is recognized as a crucial component of construction management. The objective of CSLP is to determine the best arrangement of temporary facilities on a construction site, which would minimize the transportation distance of site personnel and equipment. It could be achieved by creating dynamic layout ...
Abstract: As for forest harvesting in Japan, machine operators have to handle their own forest machines on forest road with steep slope in the deep mountains. One common hazard that they are always facing is machine stability under different ground conditions. This paper presents the contrivances to provide the people concerned ...
Abstract: The use of logistics milestones, as predecessors for construction works, is gaining popularity to improve the control over the material procurement stage and minimize the risks of delay in the project completion resulting from late material deliveries. Transportation is an important phase in the procurement process which can account for ...
Abstract: Advocates of BIM have the ambition of making it a central tool for information management and collaboration among stakeholders on construction projects. Even so, its implementation is often difficult for small construction contracting businesses, albeit that they make up such a large proportion of the construction industry. This paper uses ...
Abstract: The objective of this study is to explore an optimal strategy on energy consumption for a direct expansion (DX) air-conditioning system by using a refrigerant pump in the liquid line to allow the system to operate at a lower condensing pressure. An existing DX rooftop package of a commercial building ...
Abstract: This study discusses the construction and demolition waste recycling stream both in Australia and in Germany. Differences and commonalities in commercial practices between the two countries are outlined, and open research questions are introduced. Following McDonough and Braungarts cradle-to-cradle theorem, and ideal closed-loop system within the building life cycle is ...
Abstract: Building Energy Management Systems consist of hardware and software components. The hardware set-up of BEMS is typically made up of a set of computers in charge of building control and sensoractuator networks. The software side of BEMS is usually made up of a number of functional layers that implement standard ...
Abstract: This comparative study between German and Australian legislation demonstrates that legal frameworks impact on the way in which recycling systems work. Both Australia and Germany operate as Federations and the autonomy of states influences common federation wide practices and standards. In Germanys case however, it is obliged to comply with ...
Abstract: Work in masonry is divided in different tasks and performed by sub-contractors. Sub-contractors specialize in a given skill to accomplish a specific construction task and usually work with crews. Due to this specialization, multiple crews with different skills are present on the jobsite at any one time and the sub-contractor ...
Abstract: Recent studies have focused on increasing energy efficiency in commercial buildings through technological means (e.g., efficient HVAC systems, sensors and sensing systems). However, most studies underestimate the impact of occupants behavioural choices. Lighting systems account for approximately a fifth of the total electricity consumption in the US; commercial buildings account ...
Abstract: In the situation of energy deficiency, the management of the economical and efficient power utilization plays an important role in the national energy policies and has been considered as an essential requirement for the coal production enterprises, especially in the underground ones. The report represents the features of the ...
Abstract: Among alternative energy sources for residential buildings, algae technology has emerged as a promising option due to its closed-loop configuration and the ability to produce biofuel energy while reducing waste stream flow and capturing carbon. Furthermore, this technology has the potential of integrating resource and waste management, and can be ...
Abstract: In recent years, the construction industry has been actively seeking for possible applications of Building Information Modeling (BIM), including the domain of building disaster-prevention management. BIM enables us to present a facility layout in threedimension (3D) and carry the disaster-prevention objects and information whereas the traditional approach can only be ...
Abstract: In the underground mining and tunnelling rock excavation processes, there is plethora of different machine, tool and information system providers involved and practically no general information model covering the complete process. The competition in the field is getting more intense and all the actors should intensify their operations. The information ...
Abstract: While web-based project management systems are widely being implemented in most construction projects, there is a clear lack of understanding among the industry professional in relation to any quantified benefit and achieving success in projects. The aim of this research is to unfold the understanding of the key factors affecting ...
Abstract: This study applied integrated indoor positioning and augmented reality (AR) technologies to develop an on-site viewing model of BIM. In the proposed model, BIM information is displayed and superimposed on real building elements in 3D component models or surrounding texts using AR technology. The building must have a wireless network ...
Abstract: Ready-made building components and joining systems are generally unfit for existing building structures with irregular shapes. Therefore, unplanned and immediate manual work is dominantly practiced as measuring and manufacturing of the customized joining system is not supported. In this respect, by obtaining 3-D shapes of the existing building components and ...
Abstract: Development of the schedule control of precast concrete supply chain has been studied. Main idea was to use BIM model created by structural engineer as a user-interface for schedule control, for saving different status information of the real-time schedule situation of the propagation of structural design, element manufacture, delivery and ...
Abstract: The present development situation of 3D and BIM based process model for tunnel design and construction methods has been studied. Tunnel design is generally done using traditional 2D drawing based working methods. As a basement for the research, the new specifications developed in Finland for national BIM requirements for infra ...
Abstract: A three-dimensional (3D) laser scanner is one of the most well known devices when it comes to creating a 3D model of existing bridges and buildings. Most 3D scanners can pick up point clouds very accurately, which can be used to create an accurate 3D model of existing objects. One ...
Abstract: Machine control systems generate huge amounts of data to be used to build smarter. This information is still not widely used as there are no general methods to access this massive spread of data as these are strictly closed systems. Main tools in our study were an open source 3D ...
Abstract: Background: Information Technology (IT) has reached a level of maturity, where IT can really meet the complexity of the construction industry. IT has reached the ability to support construction not just any more in the facilitating processes as financial services and human resources management (HR), but also to play a ...
Abstract: The collection of as-built data for construction progress monitoring remains challenging. This paper develops two case studies on image-based modeling, in which point cloud models are created based on the photo collection of the construction site. The first case considers 399 unordered construction images previously taken for purposes other than ...
Abstract: Estimation of the carbon emissions in the construction phase of the building life cycle requires acquiring and analysing a great deal of project specific data including the amount of the works performed by different equipment and the unit emissions of various machinery at different work conditions. Such information are very ...
Abstract: Activities undertaken on a construction site are often accompanied with high levels of noise. Addressing the issue of noise pollution in construction is gaining significance with the growing awareness about the social and environmental components of sustainable construction and the increasing numbers of projects being undertaken in congested urban areas. ...
Abstract: Background. Improvement of quality, decrease of terms and cost of construction are inseparably linked with problems of effective use of bulldozer equipment. Purpose. The most important problem of control tractions modes of the bulldozer is the fullest use of traction opportunities of the machine at the expense of management of ...
Abstract: Last decade saw a considerable growth in number of methods to create 3D models for buildings. Some companies have developed their own online maps systems. One of the most well-known of them is Google Maps. The maps are infrequently updated because the process is costly and labor-consuming, and, as a ...
Abstract: Mobile robots with omni-directional wheels can generate instant omni-directional motion including lateral motion without any extra space for changing the direction of the body. So, they are capable of traveling in every direction under any orientation to approach their destinations even in narrow aisles or tight areas. Especially, if a ...
Abstract: Ageing society and individuals with disabilities faces numerous challenges in performing simple tasks in Activities of Daily Living (ADLs), [1]. ADLs represent the everyday tasks people usually need to be able to independently accomplish. Nowadays caring of elderly people becomes more and more important. Performance of ADLs in the long ...
Abstract: Emerging wireless sensor networks (WSN) technology offers a great potential in supporting current project management practices. Deploying wireless sensor networks on construction sites can lead to significant time and cost savings by providing accurate and near-real time data to project management personnel. Continuous monitoring of labor usage, materials placement and ...
Abstract: Developments of Terrestrial Laser Scanning (TLS) and Building Information Modeling (BIM) offer great opportunities to achieve a leap forward in the efficiency and completeness of dimensional control operations. This paper presents an approach that demonstrates the value of this integration for slab flatness control. The approach first employs the Scan-vs-BIM ...
Abstract: Mobile robots in automation construction have been designed for applications of craning, conveying, excavating, and floor polishing. These robots nowadays are equipped with various sensors to detect environmental information and finish tasks autonomously. When robots navigating path needs to be rescheduled, the supervisor of robot can duly interrupt system and ...
Abstract: Microtunneling is a trenchless construction method that is highly adequate to install pipelines beneath roads, rail roads, dams, harbours and environmentally sensitive areas. Microtunneling could be understood as a remotely-controlled, guidance operation of a MicroTunneling Boring Machine (MTBM), where references are provided by a human operator from the surface. A ...
Abstract: One of the most prohibiting factors when attempting to reuse structural steel members or systems of members is the time and labour required to accurately determine dimensions. Current practices dictate that all required measurements are recorded by hand using tape measures and calipers which adds a significant cost to reused ...
Abstract: In the construction industry, fall accidents are the leading cause of construction-related fatalities; in particular, ironworkers have the highest risk of fatal accidents. Detecting near-miss accidents for ironworkers provides crucial information for interrupting and preventing the precursors of fall accidents while simultaneously addressing the problem of sparse accident data for ...
Abstract: Localization (position tracking) inside tunnels is difficult. GPS signal is not available inside tunnels, and installation of wireless access points is expensive. In this work, we propose the use machine vision for localization in tunnels. The advantage for such approach is that it requires no installation of any infrastructure, needed ...
Abstract: The tenet of TQM is the use of measurements to monitor an operation in order to avoid poor quality outputs. The construction faces unique barriers to utilize effective technologies to capture critical process data in real time. This paper presents the results of extensive field testing of wireless systems to ...
Abstract: Recently it is observed that there is an increasing trend of using lidar point clouds in construction, since lidar is able to provide highly accurate 3- dimensional representations of objects. The flip side of a lidar point cloud is its massive size and therefore prolonged time for data processing. Our ...
Abstract: Developing measurement tools to assess urban sustainability is one of the new streams in built environment; however, automated methods of urban form assessment are technically difficult. While planar characteristics of urban forms have been studied traditionally using the spatial metrics from remote sensing data such as Landsat images, height information ...
Abstract: Human detection is an important topic that can be used for many applications, it is mainly found in areas that required surveillance such as airports, casinos, factories, construction and mining sites. In this paper, a novel human detection method is introduced to extract the human figure from an input image ...
Abstract: Capital projects are the backbones of our society and they must go through an evolutionary process of repeated planning and analysis cycles. Ensuring a building is structurally sound, or that a tallest building will add a new image to a city is not enough: new infrastructure and urban development must ...
Abstract: In the last few decades, climatic changes have become very important issue to investigate when dealing with sustainable structures. This paper presents the challenges made by the Bedouin residence of Siwa oasis in Egypt through the case study of three vernacular buildings, in order to identify the best practice and ...
Abstract: An optimum selection of construction company suppliers is one of the most important processes of the top management. The most of construction processes are realised by many suppliers all over the world and during the process of construction planning it is necessary to find an optimum solution which would cover ...
Abstract: Accurate estimates of the state-of-health (SOH) for rechargeable batteries provide a significant value to the management of any operation involving electrical systems. This is especially important for transportation systems, where unexpected battery performance may lead to catastrophic failures. This paper performs experiments aiming at analyzing Lithium-ion battery performances with aging ...
Abstract: Knowledge Management (KM) is a business management technique that promises improved competitive advantage among other benefits for an organization. The application of KM in construction is fairly researched and reported. Although Building Information Modeling (BIM) is gaining wide acceptance among Architects and Project Managers for efficient and effective design and ...
Abstract: Development of building information modelling for dredging process has been studied. In dredging area different 3-D guidance and control systems have been used already over 15 years. However, the information transfer process from early initial data acquirement phase through design and further to construction phase has suffered from information delivery ...
Abstract: The building materials and structural form chosen in design phase not only affect the costs for construction, but also decide the costs for maintenance. However, the large amounts of maintenance costs are not easy to estimate. This article proposes a decision support model adopting life cycle assessment to assist the ...
Abstract: For the past few years, numerous super high-rise buildings have been built around the world. Among them, movement management of materials and labors is closely related to productivity of super-high rise construction. The objective of this study is to develop an algorithm which can increase productivity of lift operation on ...
Abstract: Mechanized earthworks for post-disaster reconstruction largely forks into unmanned construction at hazardous working sites and manned one at less hazardous sites. In order to avoid secondary disasters, it is significant and required to compensate operators realistic sensation in order to enhance spatial awareness in the mechanized earthworks. The mechanized earthworks ...
Abstract: Implementing Information technology (IT) in a system presents varied responses. Prior research models in IT adoption examine dimensions not limited to attitude, subjective norm, ease of use, usefulness, innovation including several moderating variables. Despite consistent blueprints on leverage on IT in the Malaysian construction industry master plan, the exponential growth ...
Abstract: Technological advances in mobile systems, such as smartphones and tablet computers, provide engineers with new opportunities to enhance the current facility management processes. Equipped with powerful system processors, touch screens, and wireless communication capabilities, mobile systems enable the experience of omnipresence of facility information. Building information modeling (BIM) also enables ...
Abstract: In Alberta, Canada, heavy industrial projects are constructed using a prefabrication approach: spools and pipes are produced in the factory, and are assembled into modules that are transported to the industrial plants for installation by mobile cranes. Planning the onsite mobile crane operations is critical to the project budget and ...
Abstract: SatraPM is a web-based software package, aiming to help project managers to easily handle their construction projects via internet. This software is capable of handling all projects of an organization, in which all projects can be defined in EPS the same as users in OBS. A 3D accessing module links ...
Abstract: The AEC (Architecture, Engineering, Construction) industry is an information intensive industry and all related processes employed during different phases of a project, including planning, designing, building, manufacturing, occupying, and maintenance, involve vast amounts of data that is used for a wide variety of purposes. Building Information Modeling (BIM) is a ...
Abstract: Tower crane layout (TCL) is a typical construction site layout (CSL) problem, which is suitablefor a wide range of work assignments and site conditions. Tower crane is one of the key facilities for vertical and horizontal transportation of materials, especially for heavy prefabrication units such as steel beams, ready mixed ...
Abstract: The topic of this article is the automation and robotization in refurbishment processes of industrial buildings. The need to mold these production spaces is quite universal. Particularly in the regions with a high industrial development and with a lack of buildable land, there is a need to convert this kind ...
Abstract: The article discusses the possibility of automation in refurbishment processes of social dwelling built from 1950 to 1970. These massively produced buildings were mostly designed prior to the law enforcement regarding thermal insulation or accessibility. Nowadays, many of these buildings are being retrofitted. The article focuses on the works in ...
Abstract: Projects as regards state-of-the-art mechatronic systems aiming at increase of safety in the mining industry and at improvement of coal production technologies, which have been completed at the KOMAG Institute of Mining Technology, are presented. These projects cover automation, monitoring and visualization systems, systems for implementation of artificial intelligence techniques, ...
Abstract: Life Cycle Analysis (LCA) is a methodology for evaluating the environmental impacts associated with a product during its life cycle. LCA is identified as the most reliable method for verifying environmental impacts; however, current LCA-based approaches have certain limitations for environmental analysis of construction products. Integration of the LCA methodology ...
Abstract: Roadway development rates in Australian underground coal mines are failing to keep pace with modern longwall systems and are unlikely to sustain further improvements in longwall productivity into the future unless step change improvements to roadway development equipment and practices are made. Bottlenecks which limit and constrain improved production and ...
Abstract: The electric power conduit (EPC) in Korea has been constructed since 1978. Facing the challenge of safety and sustainability of the EPC, it is urgent to develop an inspection strategy and maintenance system for the structure based on the concept of life-cycle management. This paper introduces the newly developed mobile ...
Abstract: Today, systems and machinery usually are designed to meet only one specific customers requirements. One reason for this is that underground automation and smart functions are often developed tightly together with a customer. This is natural, since risk and cost can be shared between the customer and the supplier. Nevertheless, ...
Abstract: This paper presents a Cloud-based system framework for providing a web-based building information model (BIM) service. Cloud computing technologies were used to develop a BIM data center, which can handle the big data of massive BIMs using multiple servers in a distributed manner. In addition, the system allows multiple users ...
Abstract: Building Information Modeling (BIM) is an increasingly popular method for generating and managing facility information during the life cycle of a building, ranging from facility conceptualization, through design, construction and its operational life. Organizations involved in Facility Management (FM) have the opportunity to use BIM as a knowledge repository to ...
Abstract: Recently, there is growing trend to build the high-rise and install curtain walls. Following this trend, we developed robot for building wall cleaning work, which moves along Built-in guide rail of building. Because it moves attached at building wall for cleaning work, it can be seriously affected by potential threats, ...
Abstract: The traditional approach to managing information flow between a mine underground and overground, applied in copper mines of KGHM Polska Miedz S.A., is mostly based on exchanging spoken information using the mine telephone network and printed documentation. This way of information flow significantly influences effective use of time of a ...
Abstract: Previous research has shown that Scan-vs-BIM systems are powerful to provide valuable information for tracking structural works (progress, quality, safety). However, the transferability of this capability to other construction areas such as MEP works has not been assessed so far. Comparatively, the construction of MEP systems, in particular pipes and ...
Abstract: This article reports on the current state of an ongoing research project which is aimed at implementing intelligent models for hardly predictable hazard scenarios identification in construction sites. As past evidences showed that no programmatic action can deal with the unpredictable nature of many risk dynamics, we tried to survey on ...
Abstract: In the planning phase of every construction project, layout of temporary facilities is a crucial task; site layout can affect safety, travel cost and time, construction productivity, and space utilization. However, site layout planning can be a complicated problem, due to the interdependency of influencing factors. Although interaction among activities ...
Abstract: The Cigar Lake ore body is a high-grade uranium deposit situated within water-saturated sandstone. In order to extract the uranium ore remotely, ensuring minimal radiation dose to workers, and also to access the ore from stable ground, the Jet Boring System (JBS) was developed. This method of mining involves drilling ...
Abstract: The paper has focused on possibilities of interconnecting information sources concerning monitoring & control of mining industry technical processes (TP), and the related safety hazards. The key issue is the comprehensiveness of the information presented to users. Information can be presented by virtual reality means, when the seemingly true presentation ...
Abstract: Various types of service robots have recently been developed for guarding facilities, caring for the elderly, carrying objects, and cleaning buildings. As barrier-free facilities improve and their use expands, these robots have more space within which to move inside buildings. Yet robots that move autonomously rely on position-detection systems. Though ...
Abstract: As Building Information Modeling (BIM) becomes widely adopted by the construction industry, it holds undeveloped possibilities for supporting Facility Management (FM). Some FM information systems on the market claim to address the needs for FM requirement. However, the question of whether the functionalities provided by the current BIM-based FM software ...
Abstract: Over the past two years, the construction industry has increasingly recognized the benefits and capabilities of building information modeling (BIM) for information integration, visualization and parametric design, reducing the duplication of work and complexity of interface integration, while significantly saving both time and cost. However, due to the variety of ...
Abstract: Mechanical/Electrical/Piping (MEP) systems, due to their complexity and diversity, are the most intricate part of building construction. This being the case, Combined Services Drawings (CSD) and Structure, Electric and Mechanic(SEM) drawings can ensure that all coordination issues are resolved prior to construction. Construction companies attempt to apply Building Information Modeling ...
Abstract: This paper presents an innovative computer vision method for condition assessments of bridges with multiple defects in bridge elements using digital images. This work utilizes 3D model of existing bridges and overlays digital images on 3D model to simulate on-site visual inspection. The analysis of element condition index (ECI) of ...
Abstract: Daily field management of earthmoving operations requires quick and regular decisions for allocating available equipment to different jobs on a project. A general foremans day starts with matching several activities with a suitable set of available equipment to achieve the highest productivity and lowest unit cost. Usually, this decision-making process ...
Abstract: Selecting the best possible cranes and identifying spatial conflict-free locations on sites can result in productivity and safety improvements for large-scale industrial construction projects. In the current practice, experienced lift engineers select cranes based on the heaviest lift and/or the largest lifting radius of the identified crane. This practice is ...
Abstract: Uncertainty is an inherent characteristic of construction projects. Neglecting uncertainties associated with different input parameters in the planning stage could well lead to misleading and/or unachievable project schedules. The objective of this paper is to present a new approach towards scheduling repetitive construction projects while accounting for uncertainty. The paper ...
Abstract: In this research, we devised a measurement method using total stations (TSs) which have the Baum which is a concentric circle reticle, as substitute for crosshairs. The Baum owes its name to the similarity between the concentric circles and trees (Baum in German). By setting one circle on both of ...
Abstract: Building Information Modeling is a prevailing methodology in the building industry and half (by length) of the world's shield tunnels are in Japan. Accordingly, for shield tunnels from 2005 to 2007, we developed a product model called IFC-ShieldTunnel, which is based on Industry Foundation Classes (IFC), in order to meet ...
Abstract: Traditional planning methods such as CPM and PERT have been useful tools to manage construction projects. However, the underlying model of these traditional methods often seems to fail to represent real projects as they tend to assume no interrelationship between project components. In reality, project components have complex dynamic feedback ...
Abstract: This paper describes a method for selection of most suitable project delivery systems for capital projects. It expands upon the method advanced by the Construction Industry Institute (CII) in 2003, and incorporates additional decision criteria and project delivery systems in a multi-tier decision computational platform. The paper integrates the analytical ...
Abstract: Material can be seen as the fuel needed to execute the project from inception to completion. Material installed provides good indicators of progress achieved onsite vis-a-vis project schedule performance. It correlates well with the role of the schedule performance index (SPI) of the earned value method (EVM). Material is recognized ...
Abstract: Vulnerability is a measure of the extent to which a community, structure, services or geographic area is likely to be damaged or disrupted by the impact of particular hazard. Current asset management practices focuses on studying factors that affect performance of isolated infrastructure networks and model a set of actions ...
Abstract: Site inspection is an important component of safety management system. In current practices, the inspectors evaluate the safety condition on a construction site with the assistance of a standardised checklist. However, the checklist emphasizes on evaluating the implementation of safety management system, but provides limited task-specific check items for assessing ...
Abstract: Non-Intrusive Load Monitoring (NILM) is a method of extracting appliance-level power consumption information from aggregate circuit-level data with the goal of giving users feedback regarding their energy consumption so they can take control of their consumption habits. In this paper, we present a novel algorithm for classification of on and ...
Abstract: Recently, the effects of global climate changes have become top concerns for governments decision making regarding infrastructure investments. Extreme weather events that exceed the capacity of existing systems have considerably increased in frequency, and the potential effects of changing trends in temperature and rainfall on infrastructure are difficult to ignore. ...
Abstract: The reliability of mining systems is generally low due to their harsh working conditions. Currently, efforts for improving mining system reliability are often made in isolation. This practice could substantially limit the effectiveness of the efforts on overall reliability improvement of the mining system. To enhance the overall reliability of ...
Abstract: The North Saskatchewan River flows southwest to northeast through a 22-km-long valley in the City of Edmonton, supplying the drinking water to dozens of downstream communities. During heavy rains, combined sewers occasionally overflow into the river, which has a significant negative impact on the water quality and the sensitive environment. ...
Abstract: Indoor localization has gained importance as it has the potential to improve various processes related to the lifecycle management of facilities and to deliver personalized and location-based services. Radio Frequency Identification (RFID) based systems, on the other hand, have been widely used in different applications in construction and maintenance. This ...
Abstract: Scaffolds are temporary structures built to facilitate construction activities on site. A considerable amount of resources are allocated to scaffolding on industrial projects. Variability in geometrical features and space accessibility of structures on industrial projects, in addition to involvement of different trades that share the use of scaffolds, requires an ...
Abstract: In the construction industry, project changes constitute a major cause of delay, disruption, cost increases, poor quality and unsatisfying performance. They are also known as a main factor of litigation between the owners and constructors. Construction projects are essentially process-based, and with the critical role of Information Technology (IT) in ...
Abstract: As the usage of BIM increased in the construction industry, some construction owners started exploring the use of BIM for maintaining their facilities. Construction Operations Building Information Exchange (COBIE), a spreadsheet data format suggested in 2007 to manipulate building information, is considered as one of the solutions that would facilitate ...
Abstract: This paper presents a novel action recognition method for observing human workers using interactions between actions and related objects on an internal construction site. This method can be used to measure work rates for labour productivity monitoring. This monitoring is critical because the performance of a construction project is significantly ...
Abstract: Addressing deficiencies and defects that occur during construction projects is costly and time consuming. The manual quality assurance programs currently used in the industry have certain limitations, including human error and lack of consistency. Hence, there is a need for integrated electronic models that employ new technologies and methods. This ...
Abstract: Unmanned construction technology used for remote control operation of construction machines has some problems to solve compared with manned operation of construction machines, such as fatigue due to long-term operation or decreases in operational efficiency. To solve these problems, we recorded the viewpoints of operators in both manned and remote ...
Abstract: This paper considers the integration of uncertain real-time logistics data for reactive construction scheduling. In order to manage a construction project efficiently, an accurate schedule representing the current project progress is inevitable. The quality and up-to-dateness of such a schedule depends on the availability of real-time data. Typically, real-time logistics ...
Abstract: In this research, earlier developed information integration method and novel web technologies are applied to intensify infrastructure construction process control. The applied method uses semantic methods to integrate scattered information that is later on exploited by process management using state-of-the-art web technologies. The applied method and web technologies not only ...
Abstract: Conventional methods of underground surveying use theodolites/total stations and 3D laser scanners to obtain information about the underground environment. Current methods of geo-referencing these instruments to a mine reference system include triangulation, trilateration and resection. However, despite technological advancements, surveying procedures have remained slow, laborious and relatively unchanged during the ...
Abstract: Simulation techniques have offered significant boosts toward a cost-and-time-optimized planning of construction projects by enabling project managers to effectively comprehend the behavior of projects. Using historic data from projects of like nature, simulation considers uncertainties involved in a project through accommodating the stochastic modeling parameters. However, the heavy reliance on ...
Abstract: The identification of potential accidents on construction sites has been a major concern in the construction industry and it needs a proactive safety plan to reduce the risk of accidents. There are no efficient methods for checking if safety measures are taken properly on construction sites. Consequently, workers on site ...
Abstract: Indoor physical security, as a perpetual and multi-layered phenomenon, is a timeintensive and labor-consuming task. Various technologies have been leveraged to develop automatic access control, intrusion detection, or video monitoring systems. Video surveillance has been significantly enhanced by the advent of Pan-Tilt-Zoom (PTZ) cameras and advanced video processing, which together ...
Abstract: The autonomous control of vehicles interacting forcibly with their environment, such as dozers and tractors, is an unsolved and challenging problem. Forces and motions are inherently coupled between the tool and the means of vehicle propulsion. Furthermore, they are often operated within uncertain and unstructured environments, such as those encountered ...
Abstract: Dump trucks are the main mean for hauling earth material within and outside of the construction and open-pit mining jobsites. The real-time monitoring of the material transportation trips is beneficial for proactive equipment management, volume estimation, and productivity measurement. The traditional manual observation is tedious, non-real-time, and expensive; therefore remote ...
Abstract: Considerable number of methods and procedures has been introduced for trending and progress reporting of engineering, procurement and construction projects. This paper introduces a novel method, designed to augment the set of indices for measuring schedule performance. The concept behind the developed method is to provide early warning by dynamically ...
Abstract: The purpose of this research is to evaluate the impact of Building Information Modeling (BIM) on Just-In-Time (JIT) material delivery, with a focus on how the use of BIM can help improve efficient implementation of JIT and reduce the cost of material management. Previous research and a number of case ...
Abstract: This paper presents the results of field test and theoretical analysis driving resistance articulated 4x4 tracked robot test-bed. Tests were made on four different grounds. Designated elastomeric tracks resistance coefficients are much higher than for steel tracks. This information was important for the proper estimation of energy consumption in the ...
Abstract: Safety management is an important mortal and business function in construction. Contractors have traditionally tracked and reported lagging indicators, e.g. fatalities and lost-time accident rates, to measure their safety performance and stay in compliance with relevant regulations. Over the last several decades, contractors became more proactive in their approach to ...
Abstract: Detailed as-built project schedules are necessary to close out construction projects, benchmarking, forecasting, dispute resolution, and improving cost estimates of future projects. Manual procedures for developments of as-built documentation is time consuming, involves numerous interfaces and human interventions. This paper presents computational framework that encompasses automated site data acquisition and ...
Abstract: It is a general expectancy that in most of the construction and renovation project, the contractor is going to hand over the as-built documents to the owner or the facility management team at the completion of the project. The main challenge for the handover process is to ensure the completeness ...
Abstract: Tunnel Boring Machines (TBMs) are widely used for tunneling in urban areas because of their high advance rate, precise as-built profile and minimal impact to buildings and traffic on the ground. For a tunnel built by a TBM, there are strict requirements on alignment control and safety. To meet these ...
Abstract: Tele-operation manipulators applied in this paper are systems for the remote handling and management of pyroprocessing related facilities in an Argon cell of the KAERI (Korea Atomic Energy Research Institute). Generally, these kinds of systems are composed of a master-slave system and its peripherals installed along the wall of the ...
Abstract: The three-dimensional (3D) reconstruction of as-built industrial plant models plays an important role in revamping planning, maintenance planning, and preparation for dismantling during the lifecycle of industrial plants. Recently, the 3D reconstruction of existing industrial plants was conducted using laserscan data to make surveying processes more efficient. However, the current ...
Abstract: Shipping and stevedoring industry is going to witness a massive increase in the amount of containers to be handled while land constraints become more critical. Offshore transfer operations hence offer a preferable solution to deal with the surge in cargos rather than to expand the port outwards. Recently, there has ...
Abstract: In order to gain competitiveness and compete at a global level, construction companies should improve their efficiency. The problem is even more relevant in the construction field, whose work processes find it hard to evolve towards new automated methods and techniques in the management field. For that reason, this paper ...
Abstract: In this paper a possible methodology to supplement a predictive control approach is reported. The benefits deriving from the application of a predictive control on complex buildings lay on its capability of adapting in advance to the conditioning needs of indoor environments. In fact, the mere reactive control is usually ...
Abstract: Network communication note is a cloud system for an earthwork project. It enables backhoe operators and dump truck drivers to monitor their own works in progress currently and performed up to the present, and to have opportunity to reflect on their own bearings in the earthwork operations, and then could ...
Abstract: The increasing size and complexity of mega construction projects result in having several geographically distributed stakeholders, collaborating with each other to successfully deliver the project. Electronic Product and Process Management Systems (EPPMS) are recently emerging to facilitate the collaboration between stakeholders, reduce the surprises and issues, and improve the project ...
Abstract: Building Information Modeling (BIM) has been gaining a significant edge in the construction industry over the last decade. BIM allows gathering all building information in one shared database that can help all construction entities better understand, integrate and visualize all work progress from inception to operation of the building. The ...
Abstract: Electronic Product and Process Management [EPPM] systems provide the capability to establish and map information flow between different parties in a construction project as well as model project processes. Much of the information relating to processes and their structure, the actors that operate them, and the data associated with each ...
Abstract: During a construction project, it is important to ensure that accurate and pertinent knowledge is delivered on time to appropriate personnel. The criticality of documents exchanged or referred to by various parties, evolves over the course of the project lifecycle. Determining the criticality of documents at different stages of the ...
Abstract: Energy consumption in commercial buildings has been increasing rapidly in the past decade. The knowledge of future energy consumption can bring significant value to commercial building energy management. For example, prediction of energy consumption decomposition helps analyze the energy consumption patterns and efficiencies as well as waste, and identify the ...
Abstract: Initiated and financed by the Canadian Space Agency, Micro-Rover Platform with Tooling Arm (MRPTA) project has targeted the development of a robotic system with remote control and autonomous navigation capabilities for testing a large variety of analogous planetary missions. Although developed for planetary exploration, the navigation system is highly suitable ...
Abstract: It always has been a serious issue to improve safety in mine sites, demolition work sites, and civil engineering work sites. Especially, collision accidents caused by construction equipment damage not only the productivity of operations but also the health and life of workers in those work sites. To solve this problem, ...
Abstract: The networks of interdependencies between elements in building projects, referred to as the project topology, are often complex and difficult for project teams to comprehend. It is hypothesized that a graphbased model of the project topology can be based on existing data in Building Information Models (BIM), facilitating the application ...
Abstract: Fatalities resulting from ground workers colliding with objects and construction equipment accounted for approximately 18% of the total construction fatalities experienced in 2010. Current injury and fatality measuring methods have proven to be inadequate due to their use of passive measures of safety rather than a more active approach, such ...
Abstract: Product Lifecycle Management (PLM) solutions have been serving as the basis for collaborative product definition, manufacturing, and service management in many industries. They capture and provide access to product and process information and preserve integrity of information throughout the lifecycle of a product. Efficient growth in the role of Building ...
Abstract: Concrete reinforcing requires coordination among many roles: structural engineer, estimator, detailer, fabricator, installer and others. The methods used to define and represent concrete reinforcement elements and assemblies in building information models is crucial in determining the efficiency of sharing data among BIM platforms and the effectiveness of using the carried ...
Abstract: Most mining and metallurgical industries produce relatively large quantities of low grade waste heat which they vent, for the most part, to the environment. To date, little is being done to recover some of this heat and transform it from low grade to a high grade energy form such as ...
Abstract: Three-dimensional models are in increasing demand for design, maintenance, operations and construction project management. Point-clouds are the main output of automatic data collection using laser-scanners and photogrammetric technologies. Pipe-works may comprise 50% of the value of important construction projects such as industrial and research facilities. We have developed a practical ...
Abstract: As the building has recently become bigger, higher, and freeform, a technology called BIM (Building Information Modeling), which is a key technology that integrates construction and IT(Information Technology), has been rapidly introduced and expanded. Because BIM technology offers various benefits, countries that introduced BIM early has been actively promoted. However, ...
Abstract: As the amount of construction information used in the growing construction field increases, the importance of efficient construction field management has been growing. Therefore, construction industry have been tried to introduce and conjugate various software and IT technology such as PMIS, Web Camera, RFID, GPS, PDA. However, existing IT technology ...
Abstract: Even though many approaches have been proposed for automated fault detection and diagnosis of Heating Ventilation and Air Conditioning (HVAC) systems, and advanced maintenance programs, such as preventive and predictive maintenance have been applied for the systems, issuing work orders for corrective maintenance is still a reality. Currently corrective maintenance ...
Abstract: In 2005, we automated a forklift-based Hot Metal Carrier to be capable of typical metal transfer operations around a smelter. The project was highly successful and the vehicle has demonstrated hundreds of hours of live autonomous operations to thousands of people from industry and the public. As a result of ...
Abstract: The integration of three-dimensional (3D) data with infrared thermography has received much attention for its potential use as input data for building energy simulations. Therefore, researchers have proposed methods to integrate 3D data with infrared thermography obtained by different sensors. These studies show the potential of the integration of 3D ...
Abstract: Large-scale land reclamation has been undertaken in Singapore since the 1960s. In the early years, the fill materials excavated from the hills. In recent years, sea sand is the main source of the fill materials. The contractors used to import the sea sand from the neighbouring countries such as Indonesia. ...
Abstract: In this paper the utilisation of building information models (BIM) and construction automation on building sites is discussed. A lot of research has been carried out to develop new applications for using BIM to assist construction site planning, different operations and logistics. The methods of production control and management on ...
Abstract: As a part of a large research and development program in Finland, a system calibration for an UAV measurement method having practical experiments in a Jorvas Railway Yard design and construction project. The Railway yard construction are was measured using an UAV measurement device by Smartplanes (Smartone) and using some ...
Abstract: A large research and development program called RYM PRE (Process Re-Engineering) has been active in Finland since 2010. As a part of the program, a work packet Infra FINBIM is focused on the development of new national process model, specifications and requirements for the whole Finnish Infra Industry. In the ...
Abstract: Today road construction sites utilize more and more information modeling in design phases as well as model based 3-D machine control systems in site operations. For main contractor, the management and control of all the site operations is a demanding task including also many challenges created by continuously developing new ...
Abstract: Open-cut method is most widely used for shallow utility lines installation. In urban areas, unexpected utility lines buried underground potentially turn open-cut construction into a highly risky operation, increasing the construction cost while presenting additional safety hazards. Examples include: breaking existing water main leads to flooding the downtown area; hitting ...
Abstract: The utilization of Building Information Modeling (BIM) and model based 3-D control of work machines have increased a lot in new road construction in Finland as well as in other Nordic Countries. Up today, much less attention has been paid into the development of maintenance and rehabilitation processes. As a ...
Abstract: Fluent information exchange between different work phases, software and systems used in infra construction is a key for successful execution of infra construction projects. Open and publicly available information formats with the determined data models aim to facilitate the interoperability between different software and systems developed by competitive vendors. While ...
Abstract: Harsh and dynamic construction sites are generally equipped with cranes in order to rapidly and conveniently move heavy loads from one location to the other. If not properly inspected and managed, this operation can be very hazardous and lead to accidents. As such, a reliable and self-contained monitoring system that ...
Abstract: Information integration and exchange for the entire building life cycle is one of the most important issues in the AEC industry. Although the Building Information Model (BIM) technology is widely utilized to address them, BIM is mainly concerned within the design and construction (D&C) phases. In the operation and maintenance ...
Abstract: It is necessary to assess the physical and functional conditions of highway bridges at regular intervals to ensure they still meet their service requirements. Currently, this condition assessment is mainly performed through visual inspection, which has been identified with several limitations (e.g. the timeconsuming assessment process and heavy reliance on ...
Abstract: The purpose of this paper is to propose the real-time facility management system framework based on Building Information Model (BIM) and Web of Things. Latest IT such as BIM is rapidly spreading to architecture, civil engineering, engineering and maintenance with the aim of simplifying complex system in buildings and facilities, ...
Abstract: Today, with the necessity of timely, on-budget and high quality completion of projects, proper use of construction equipment is essential to ensure project success. Construction equipment places a large monetary burden on the project and if not utilized efficiently, it can result in economic losses. Cranes are one of the ...
Abstract: Musculoskeletal disorders (MSDs) are a group of painful disorders that affect muscles, tendons, nerves, joints, cartilage, and ligaments. They are a serious problem among the workforce in the United States. In the construction industry, high physically demanding tasks expose construction workers to a number of well recognized MSDs risk factors ...
Abstract: Buildings in the United States account for 72% of electricity consumption, 40% of energy consumption, 13% of water consumption, 39% of carbon footprint, and 30% of waste output. In order to minimize these negative environmental impacts, many public and private owners are requesting that their buildings be more sustainable and ...
Abstract: Excavation and earthmoving equipment mostly operate in accident-prone areas. These areas normally have rollover, confinement, and fall or may be considered harmful work areas due to demolitions and sewage removals. It is inevitable that excavation and earthmoving systems should be developed to secure the safety of operators through unmanned and ...
Abstract: There is general acceptance that climate change, which is the most important challenge facing humanity, is anthropogenic and attributed to fossil fuel consumption. Therefore, improving the performance of our existing energy systems and deploy more renewable energy resources is an urgent issue to be addressed. Geothermal refers to existing of ...
Abstract: Recently, 3D printing technology in the manufacturing field is in the spotlight. In the construction industry, similar rapid prototyping technology that does not use conventional form can be applied to meet the demand on free formed structure that can provide aesthetic value and functionality. Conventional formwork can increase construction cost ...
Abstract: As of November 2012, the Alberta government listed 53 oil and gas, oil sands, and mining construction projects either proposed or currently under construction. These industrial plant construction projects have an estimated value greater than 105 million dollars. A common construction method employed for industrial plant projects is fast-track construction, ...
Abstract: By virtue of its complex nature, the construction industry comprises a wide spectrum of interrelated variables and factors. This multifaceted character of the construction industry puts the use of engineering modeling tools and techniques on top of project management necessities. This research introduces a macro-level earthmoving management system using Genetic ...
Abstract: It is always necessary to expand existing buildings, so that they could meet the growing societal needs. Compared with demolishing them and then constructing new ones, the expansion of existing buildings could not only reduce project cost, but also save the use of energy and raw materials in projects. Therefore, ...
Abstract: Intelligent Excavation System (IES) has been considered to be one of the desirable solutions to improve the productivity, quality and safety of the current earthwork processes. IES is composed of various hardware and software modules including task planner (work command generator), local and global work environment sensors, GPS and other ...
Abstract: With more and more industrial construction projects implementing RFID and other sensor-based technologies on fabrication and project sites, new innovative processes are needed to help automatically read and re-position RFID tags while reducing the cost to deploy RFID infrastructure over large areas. RFID tags are being used on construction sites ...
Abstract: This paper presents a BIM-based Risk Identification Expert System (B-RIES) for metro construction, composed of three main built-in subsystems: BIM extraction, knowledge base management, and risk identification subsystems. The engineering parameter information related to risk factors is extracted from the BIM of a specific project where the IFC standard plays ...
Abstract: Construction projects are becoming more demanding both in terms of time and complexity. This necessitates intricate planning and sequencing of activities at the macro and micro level and continuous flow of resources across the project in order to achieve planned targets. Work and Resource planning need to be done in ...
Abstract: An autonomous spray application system for a structural Thin Spray-on Liner (TSL) is targeting productivity and safety on underground coal continuous miners by potentially replacing steel mesh, and has broader applications as surface support and confinement in metalliferous mines and civil tunnelling. Polymer chemistry, coating formulation, geotechnical assessment and the ...
Abstract: This study presents a framework for quality inspection of precast concrete components using the 3D laser scanning technique. As precast concrete-based rapid bridge construction is getting standardized, quality assessment of the precast concrete becomes critical for preventing any failures during the construction process. Moreover, as Building Information Modeling (BIM) gains ...
Abstract: This paper presents a novel model to assess the risk of adjacent buildings in tunnelling environments based on Extended Cloud Model (ECM). ECM is an organic integration of Extension Theory (ET) and Cloud Model (CM), where ET is appropriately employed to flexibly expand the variable range from [0, 1] to ...
Abstract: Over the past decade the use of BIM in the AEC industry has grown several fold and with it the number of standards available for implementing BIM. The National BIM Standard by buildSmart Alliance, the Contractor Guide to BIM by the Associated General Contractors of America, the BIM Project Execution ...
Abstract: As the construction industry is becoming more large-scaled and complex, the BIM technology has been utilized throughout the industry. Since 2008, the construction industry in South Korea (Korea) has required carrying on BIM-based project continually. According to this trend, BIM S/W market, as well as BIM library market is also ...
Abstract: Mining operators are faced with complex information delivered by technology-centric rather than user-centric systems. The ability to achieve high situation awareness (SA) in the face of this data overload is a key challenge for effective decision making and information exploitation. Incidents that result in loss of revenue and even life, ...
Abstract: Hong Kong has a dense distribution of utility services laid under its road network. Utility undertakers frequently demand road openings to install new services and/or maintain existing ones. Road openings can cause troubles to the road network and negatively impact the public interest. Highways Department is responsible for managing road ...
Abstract: Construction equipment is an important type of resources of heavy construction contractors. Since equipment breakdowns can cause project delays and significant financial losses, the contractors are eager to know those factors causing equipment failures directly or indirectly, related to equipment design, maintenance, and operations. Although Bayesian network can be used ...
Abstract: The firms in construction industry could not sufficiently adapt the rapidly emerging information technologies in recent years into their corporate structures. Therefore, in an effort to further exploit the benefits of information technology (IT), integration of the experiences and backgrounds of construction industry and the advantages of IT, is one ...
Abstract: Purpose After a long period of international research and development, BIM has become mature. Many tools support the BIM process, or at least they claim. BIM not only offers opportunities for the Architectural Engineering and Construc-tion industry, but also for the client. In this paper we dont focus on the ...
Abstract: Purpose National bridge information modeling guidelines have been developed in Finland at the behest of the Finnish Transport Agency. The aim was to set, for the first time, national standard of producing and utilizing 3D-information modeling and automation in bridge engineering in Finland. Method In the guidelines, the terminology of ...
Abstract: Purpose The aim of this study is to suggest configuration methodologies of active building information model (BIM) functions that enable to practically control limitations by optimizing schedule overlapping linked to its space models after analyzing workspace conflict analysis for a bridge model. This study also suggests development methodologies of active ...
Abstract: Purpose In this research, novel information integration technology and advances in wireless communication, positioning and machine control systems were combined into a general control method for an improved multi-contractor infrastruc-ture building process. More intense competition and new environmental regulations in the field of infrastructure building are forcing companies to revise ...
Abstract: Purpose This work aims to develop a system that enables improved visualization of Architectural Engineering and Con-struction (AEC) 3D-information for application in design, construction, and management of the built environment. Meth-od A novel Augmented Reality (AR) system is presented that uses a single standard digital camera and which, contrary to ...
Abstract: Purpose As every construction project is quite different according to the type of construction, 3D-representations on design, estimation, construction, and management also need to be different. While the 3D-approach has been widely applied to building projects, it has rarely been tested on large construction projects such as tunnels, mass transit ...
Abstract: Purpose Building Information Models (BIMs) have the potential to support various engineering applications (e.g., build-ing energy analysis, renovation and retrofit planning, and facility management) in the facility operation phase. It is im-portant to keep the information stored in as-is BIMs, accurate and up-to-date. Laser-scanning technology is able to cap-ture the ...
Abstract: Purpose In recent years construction projects have become more complex and time-driven, especially with the rapid rise in the number of active partners involved in each project. Space is regarded as a limited resource on construction sites. Proper planning for site layouts ensuring construction activities can be executed safely and ...
Abstract: Purpose Accurate and timely visualization of the progress of a construction project is a critical element for success. Current methods of data collection for progress visualization tend to be manual. These manual methods are not only error-prone but also time-consuming. Remote sensing technology has been used to resolve those problems ...
Abstract: Purpose In order to provide an economical indoor location detective technique, this study is uses photo images as the indoor spatial identification tags associated with the spatial information of the existing building information model (BIM), so that users can identify their locations via the camera on mobile device based on ...
Abstract: Purpose We propose a new registration algorithm and computing framework, the keg tracker, for estimating a camera's position and orientation for a general class of mobile context-aware applications in architecture, engineering, and construction (AEC). Method By studying two classic types of natural marker-based registration algorithms, homographyfrom-detection and homography-from-tracking, and overcoming ...
Abstract: Purpose We aim to enhance quality level organization by applying the EFQM (European Foundation for Quality Man-agement) excellence model. We do this through analysis of current quality management trends, defining the EFQM-model structure and criteria (Figure 1) and the potential to introduce these with construction companies. We also propose an ...
Abstract: Purpose The slope of roads is one of the most important elements to be monitored to prevent landslides and ensure the safety of vehicles. This fact is particularly relevant in areas such as Galicia (Spain), where, due to its orography, slopes always are a relevant factor in road construction projects. ...
Abstract: Purpose POHVAII is a large research project carried out in Finland between 2007 and 2011 to develop and test a new automated process for concrete driven piling. We also describe recent developments in the Finnish industry and evaluate the technology worldwide. Method Design, modeling, and an XML-based information transferring tool ...
Abstract: Purpose Industrial construction projects are heavily dependent on pre-fabrication of piping components. Unlike traditional manufacturing, many pipe spools have a unique design and need to be custom fabricated due to the one-of-a-kind characteristic of each industrial project. This is reflected in the fact that fabrication sequences vary greatly among pipe ...
Abstract: Purpose The purpose of this paper is to present an indoor location identification methodology using low cost passive Radio Frequency Identification (RFID) for construction projects. Method Location-aware information at construction sites is an emerging area, concerned with automating the delivery of spatial information on the location of materials, workforce, and ...
Abstract: Purpose In recent decades, road inspections have used automated vehicles that integrate LiDAR, GPR, and IRI measurements. GPR-data provide valuable informationtypically about the pavement thicknessfor road assess-ment. The aim of this work is to test the GPR-system to provide geometric information about underpasses of roads, principally related to the depth ...
Abstract: Purpose One of the main concerns regarding integrated water resources management is related to the development of scalable monitoring and control systems for pro-active maintenance of water distribution networks. It is necessary for the availability of ultra-pervasive sensor-actuator networks to be deployed at the district level. The same technology is ...
Abstract: Purpose This article reports on an ongoing research project, which is aimed at implementing advanced probabilistic models for real-time identification of hazardous events at construction sites. The model has intelligent capabilities for near real-time automated recognition of hazardous events during the execution phase. To achieve this, features of Bayesian Networks ...
Abstract: Purpose One of the most critical contemporary issues is achieving and maintaining sustainable development, adapting the use of natural resources to provide for the needs of our rising populations without threatening the survival and quality of life for future generations. Sustainable construction, in particular, is a concept that is gaining ...
Abstract: Purpose Older adults are at increased risk of experiencing loneliness and depression, particularly as they move into different types of care communities.41 Information and communication technology (ICT) usage may help older adults to maintain contact with social ties.12,19,41 However, prior research is not consistent in whether ICTs increase or decrease ...
Abstract: Purpose Renewable energy components such as Building Integrated Photovoltaic (BIPV) often influence the aesthetic quality of a building adversely and hence need to be analyzed for their impact on building form and aesthetics. This be-comes crucial especially in the case of a sun-tracking photovoltaic system. Moreover, there is a need ...
Abstract: Purpose Underground transportation systems are big energy consumers and have a significant impact on energy con-sumption at regional level. One third of the networks energy is required for operating the subsystems of metro stations and surroundings, such as ventilation, vertical transportation and lightning. Although a relatively small percentage of energy ...
Abstract: Purpose In recent times, urban renewal (UR) projects actively try to improve residential environments and recover functions of an urban infrastructure. These projects move forward simultaneously as multiple projects, rather than as one single project. To cope with this, program management techniques and a comprehensive management system which is based ...
Abstract: Purpose This article was developed in the context of research on a construction system based on CAD-CAM-BIM and CNC (Computer Numerically Controlled) technology and it is focused on the implementation of sustainable refurbish-ments in historic districts. During field work in historic districts, it was established that more than 25% of ...
Abstract: Purpose Industry and government in Malaysia coined the term industrialised building system (IBS) to describe the adoption of construction industrialisation, mechanisation, and the use of prefabrication of components in building construction. IBS consists of precast component systems, fabricated steel structures, innovative mould systems, modular block systems, and prefabricated timber structures ...
Abstract: Purpose The recent research trend of building information modelling (BIM) involves interoperability and issues pertaining to the design, construction, operations, and maintenance phases of a building. However, few researchers are concerned with problems encountered in the last two phases of the building life cycle. Since BIM has been widely used ...
Abstract: Purpose Due to the rapid development of cities, underground structures, such as deep excavations and tunnels have been widely used to increase underground space. Since these underground structures are often adopted in old and crowded town area, accidents may easily do serious damage to adjacent structure and even cause some ...
Abstract: Purpose Contingency estimating and management are critical management functions necessary for successful delivery of construction projects. Considering its importance, academics and industry professionals proposed a wide range of methods for risk quantification and accordingly for contingency estimating1. Considerably less work was directed to contingency management including risk mitigate during a ...
Abstract: Purpose The use of Assistive Technologies (ATs) for residential dementia care is increasing, yet there is a gap between what individuals want, what developers design, and how outcomes are evaluated. Despite widespread acceptance that ATs improve quality of living (QOL), there is relatively little data to support such claims. This ...
Abstract: Purpose Service robots are a relatively new branch of robotics after the successful industry robots and the experimental humanoids. Service robots are supposed to perform tasks that normally are done by humans in particular daily life activi-ties. However they do not have to do it in the same way as ...
Abstract: Purpose The number of people requiring care, including Alzheimer patients, will grow while the number of people able to provide care will decrease. We focus on the development of medical, information and communication technologies for improved diagnosis and evaluation of dementia progression in early-stage Alzheimer disease (AD) patients. Method We ...
Abstract: Purpose Buildings need to be adaptable with relative ease to new user requirements, regulations or technologies. Adaptability reduces the effort and expense involved in adding, changing or replacing building components (such as partitions, doors or plumbing fixtures), throughout the building's life-cycle. This increases the buildings' value and sustainability, as well ...
Abstract: Purpose The ability to predict cash demand is crucial for the operation of construction companies. Reliable cash flow prediction during the execution phase can help managers to avoid cash shortages and to control project cash flow effectively. Method This paper presents a new inference model, CF-ELSIMT, for cash flow forecasting. ...
Abstract: Purpose Shoppers are used every day to save energy and ease carrying. The lack of attention to ergonomic considera-tions and safety parameters can lead to injuries and related inconveniences. The purpose of this study is to assess ergo-nomic factors in different types of trolleys and compared to other shoppers. This ...
Abstract: Purpose Aging has become a significant problem in the recent years, due to the aging baby boomers. Most of the supervision systems use vision to perform care functions. However people usually cannot watch video all the time, therefore the proposed sonification for aging Taiwanese is used to express a particular ...
Abstract: Purpose Each production process in construction is closely connected with the question of costs and deadlines. In every project an investor or customer, as well as the construction company, has to meet the planned completion date and the estimated costs associated with the construction. In practice, determining the duration of ...
Abstract: Purpose We developed a production system for performing renovation work with increased use of pre-cut and prefabrication elements. To develop this system, a faithful 3D-CAD model of an existing building was made using a 3D-laser scanner. The purpose of this research is to develop a method for positioning the pre-cut ...
Abstract: Purpose Currently, ICT-products play an important role in improving the quality of life and matching user needs in the information society. The ICTs and embedded tools in public services improve users autonomy, safety, self-realization, social inclusion by facilitating communication between family members, carers and persons with disabilities, etc. Our research ...
Abstract: Purpose The number of older persons in industrialized countries is steadily increasing. Seniors living alone are more numerous, and we must find solutions that will allow them to continue to stay at home comfortably and safely. Smart housings can be one of these solutions. One of the biggest challenges in ...
Abstract: Purpose The purpose of this paper is to present a dynamic planning model for earth moving operations through captur-ing the operations context level (scope change, skill level, etc.). Method Uncertainties, scope, and changes in project condition call for dynamic modeling of earthmoving operations. Static planning and scheduling methods such as ...
Abstract: Purpose When a laser scan is performed and no prior information is available about the building, standard sections of components need to be identified from point cloud data in order to generate informative as-is building information models (BIMs). Currently, the standard steel sections used at a site are not automatically ...
Abstract: Purpose Construction equipment is a key resource, and contractors that own a large equipment fleet take all necessary measures to maximize equipment utilization and minimize equipment failures. Although most contractors implement scheduled maintenance programs and carry out periodic inspections and repairs on their construction equipment, it is still difficult to ...
Abstract: Purpose The outer walls of high-rise buildings contain many grooves of irregular shapes and sizes. Conventionally, gondola systems on platforms are used to carry the workers who conduct maintenance work on the outer walls of high-rise buildings. It is very difficult to perform such works on outer walls using a ...
Abstract: Purpose The Taiwan high-speed railway (THSR) system plays an important role in maintaining efficient transportation of passengers around Taiwan. However, the control mechanisms of THSR and the traditional railway systems are quite different. Drivers on THSR-trains cannot control the cars by themselves; only the control center of THSR can give ...
Abstract: Purpose Structural component detection is a prerequisite for various applications, including construction progress measurement and quality inspection. However, it is still a challenge to detect structural components reliably in construction site images taken from a complex and unstructured construction environment. Because construction site images contain numerous unexpected objects, structural components ...
Abstract: Purpose In an extended research program, started about two decades ago, a number of models have been developed for monitoring and controlling construction. These include models for the control of materials, earthmoving equipment, guardrail installation and labor. All these models convert data on the actual project performance that is obtained ...
Abstract: Purpose Progress is the most often used indicator in construction project management. Nevertheless, excessive man-agement efforts to collect and analyze detailed data have been highlighted as a major barrier for advanced progress management techniques for construction projects. Even though the advent of data acquisition technologies (DATs) pro-vides for automated manipulation ...
Abstract: Purpose Ongoing case studies in different facility settings revealed that current industry solutions (such as BAS and CMMS) still lack the capability to enable users to understand and interpret raw data for operation efficiency as well as plan for maintenance tasks in complex facilities efficiently. There is still a need ...
Abstract: Purpose Gait rehabilitation is a fundamental requirement to avoid disuse syndrome for the long-term hospitalized per-son such as cerebral infarction patient or patient with dementia. In general gait rehabilitation is monotonous and dull, so some entertainment or a sense of achievement is helpful to maintain motivation during the daily exercise. ...
Abstract: Purpose This paper presents a generic method to assess the usability of smart-walkers. With an increasing number of assistive robots available, it is important to make sure they work before making a choice. Mechatronic systems propose more functions that are of interest to the ageing frail or handicapped population than ...
Abstract: Purpose This research investigates the possibility of adapting industrial fabrication methods to produce mass customized ceramic components for complex tectonic systems. The aim is to bring the practice of building ceramic structures close to the contemporary production context by proposing a revision of a well-established production method clay extrusion ...
Abstract: Purpose The project develops an integrated digital workflow for robotic tile placement, a novel construction method that allows for off-site use of industrial robotics for on-site tile surfaces, and a feasibility study for implementing the approach in the context of the tile industry. The proposed approach overcomes limitations of existing ...
Abstract: Purpose For facilitating an independent living for elderly or disabled people, a method has been developed at TUM Building Realization and Robotics Lab, which aims at creating intelligent living environments by adjusting mobility sys-tems and everyday objects (e.g. appliances) as modular and complementary subsystems1. The proposed system com-prises an intelligent ...
Abstract: Purpose Recently, various applications of robotic systems to construction sites have been tried. In this research, a mobile platform-based serial manipulator, the so called mobile manipulator, is employed for construction tasks such as material handling, beam assembly, welding, and so on. Generally, a serial manipulator has 6 DOF (de-grees of ...
Abstract: Purpose The handling of material is a high resource consuming task in many different manufacturing industries and especially in the construction sector. Global demand for material-handling products is projected to rise by 7.0 percent annually until 2014 to a total of $119 billion. Typically, work on the construction site, in ...
Abstract: Purpose Elderly people tend to have several light, or even severe, disabilities, constraining them from most of every household task. Additionally, they tend to consume much of their daily time in the kitchen environment. A typical kitchen arrangement might be useful to most of us, but the actual arrangement and ...
Abstract: Purpose Nowadays, in modern cities many high-rise buildings are equipped with curtain-walls. Before the advent of robot technology, building maintenance experts maintained curtain-walls periodically. However, their work is very dangerous and there are many falls and accidents in the workplace. Because of this danger, the manual maintenance process is very ...
Abstract: Purpose Recently, wind power systems have increased in size as a function of economics of scale and they have become large offshore complexes. Approaching a wind power blade is very hard because not only are the blades set up at the sea but also the winds are very high. Nowadays ...
Abstract: Purpose We researched an automated and robotic facade maintenance robot. This robot can protect people against safety hazards, and save labour cost for building facade maintenance. Our platform is gondola type. Accurate and robust height estimation is necessary for automation. We propose a methodology for height estimation. Method Even though ...
Abstract: Purpose As robots are not yet widely accepted in Europe as service providers in home environments, the authors intent to establish the possibility to distribute robotic elements and mechatronic devices in order to fuse them with various sub-systems of buildings. Thus, robotic service systems could support Activities of Daily Living ...
Abstract: Purpose Our purpose was to develop, by combining architectural and robotic elements, a system that assists elderly people to live self-sufficiently at home. Unlike many other assistance systems our system exploits the ceiling space in order to avoid collisions with conventional living functions. Method Elderly people face numerous limitations in ...
Abstract: Purpose Over the past several years, a variety of assistive technologies have been conceived and developed to support independent living and quality of life of older adults with mild cognitive impairment (MCI) or Alzheimer's disease (AD). Within this area socially-assistive robotics is a growing field. However, although robotics has the ...
Abstract: Purpose Tunnel construction using a tunnel boring machine (TBM) entails precise machine positioning and guidance in the underground space. In contrast to traditional laser-based machine guidance solutions, the proposed research aims to develop an automation alternative to facilitate TBMguidance and as-built tunnel alignment survey during tunnelling operations. Method A fully ...
Abstract: Purpose The purpose of this paper is to present an improved algorithm for optimized acceleration of repetitive construc-tion projects. Method Through a set of iterative steps this algorithm identifies the least costly method that would put a project back on track, while maintaining crew work continuity. The algorithm divides each ...
Abstract: Purpose This paper reports on the development of intelligent probabilistic models for real-time estimation of construc-tion progress, which operate on the basis of a continuous data flow collected by monitoring networks deployed on-site. Several authors listed the advantages that would be provided by the availability of such models, like project ...
Abstract: Purpose The purpose of this project is to demonstrate the market viability of Mon Ami technology to support and maintain the elderly population living independently in the community, ensuring both social engagement and security for the individual and their family caregivers. It should also improve job performance and increase effective ...
Abstract: Purpose As the volume of international trade increased, the needs for large concrete caisson breakwaters, which can accommodate the bigger vessels, increased accordingly. However, due to the size of the caissons, the constructions of large-scale maritime infrastructures often face challenges about how to manage the construction site, improve the construction ...
Abstract: Purpose Operators and drivers are easily exposed to danger by excavators is operating in dangerous places such as slopes, soft ground, building dismantling sites, distressed areas, and construction waste land-fills. For the safe use of conventional excavators as a tele-operated system without any renovation, feedback information of the boom, arm, ...
Abstract: Purpose Improvement of on-site productivity has been a very important issue in the construction industry and construction companies struggle to overcome this problem. In Korea, a construction company considered adopting a newly developed construction tool from other countries. The company would like to measure productivity before and after adopting the ...
Abstract: Purpose One of the potential solutions for designers lack of safety expertise in design decision is utilizing IPD to allow for constructor input. But how this is to be done is often unclear because few cases from either practice or research can be found. In this study we tried to ...
Abstract: Purpose The purpose of this work is to explore the feasibility and accuracy with which people can be located in a construction site using Zigbee technology. Such positioning systems will enable the tracking of workers and this is critical in work areas such as tunnels and other constrained spaces which ...
Abstract: Purpose The objective of this study is to develop an algorithm which can increase productivity of lift operation on temporary twin-cage and multi-cage lifts for construction sites. the algorithm is developed for optimizing operation efficiency at high-rise construction sites. Moreover, it is expected that the algorithm can reduce working hours ...
Abstract: Purpose Ja-wa refers to the construction of reinforced concrete sandwich walls, with variable production capacity for small and large buildings or colonies of houses, with an integrated system of automatic design and control of one-sided concreting with ongoing control of implementation quality; in the context of sustainable development, it includes ...
Abstract: Purpose Research on tele-operated excavators that protect the operator from the risk of tip-over excavators in hazard-ous working areas has increased in popularity. The tele-operated excavator is able to protect workers from risks in haz-ardous working areas, but the operator cannot directly access the tip-over information from the tele-operated excavator. ...
Abstract: The aim of this paper is to define challenges for Automation and Robotics in construction (A+R) to enhance client and social value. Construction contributes to a positive living environment for society and is the largest sector of Europes economy with a size of around 2,500 billion Euros. Ten research projects ...
Abstract: Recently, AEC industries have been much research BIM-based energy performance and green building, in Korea. However, Current researches have the lacks of standard guideline for BIM data for BIM-based energy performance assessment and the limitation of interoperability between BIM software. Interoperability is required to Open BIM-based energy performance assessment and ...
Abstract: The concept of a green building was first introduced to Taiwan in 1999, and began to develop regulations for the design and evaluation of energy-saving buildings. The Ratio of Equivalent Transparency (Req) is a basic index for assessing whether a building is energy-efficient. Req is the ratio of the area of ...
Abstract: Decentralized control architectures for multi-storey buildings using wireless sensors and distributed embed- ding systems have been attracting more research recently. The designs for this application are however limited by the com- putational capacity embedded in each subsystem, the communication bandwidth and range of wireless channels, as well as the temporal ...
Abstract: In many cases of renovation work, it is very difficult to gain sufficient information about the existing building such as the positions and dimensions of the frame, interior and equipment because of incomplete or missing drawings. As a result, it is necessary to fabricate the parts on the construction site. ...
Abstract: The current design practice for high performance, custom facade systems disconnects the initial façade design from the fabrication phase. The early design phases typically involve a series of iterative tests during which the environmental performance of different design variants is verified through simulations or physical measurements. After completing the environmental ...
Abstract: The paper describes the methodology of computer modeling of the building process of projects with utility assessment and the main principles of the integrated cost estimation, project management and quality assurance microcomputer based system developed recently. This expert system is based on quick modeling of the building process by use ...
Abstract: The article shows procedure, which enables to control risk during project lifetime on the basis of earned value theory ratings variation in feasibility study. Sample project has been divided into typical investment tasks, then schedule and cost estimate have been worked out. Information according possible cost and time variation for ...
Abstract: Many engineering consulting firms have adopted knowledge management systems (KMSs) as a tool to record the knowledge and experiences of their engineers and staffs. It was found from previous research that similar construction problems were encountered and resolved by the same firm. The most commonly adopted form of such kind ...
Abstract: The Taipei MRT (Metropolitan Rapid Transit) system has been operated since 1996. Facing the challenge of safety and sustainability of MRT, it is urgent to develop a structural inspection strategy and maintenance system based on the concept of life cycle management. In the mean while, Building Information Modeling (BIM) has ...
Abstract: In order to improve the mobility and practicality of Building Information Models (BIM), a framework using a multimedia device, a global positioning system (GPS) and inclinometer is proposed. The GPS receiver provides location and an inclinometer measures angle of slope, both inclines and declines, of an observer. Based on these ...
Abstract: During the life cycle of a building project, voluminous data and information are usually created along with the delivery processes of building products. Currently, most information management methods are based on several different file collection approaches, which are mostly unrelated. Therefore, the various project participants are unable to synthesize building ...
Abstract: A current trend in the construction sector is the application of Building Information Modeling (BIM) for the efficient integration and management of engineering information. Today, engineering consultant, construction and architectural companies conduct research into the development of BIM in order to integrate and visualize engineering information. The capabilities of BIM ...
Abstract: Over the past five years Building Information Modeling Software (BIM) has made tremendous inroads in the US-AEC industry. The use of BIM software such as Autodesk Revit is now common place among large US contractors. The model is currently being used for issues such as design, engineering, visualization, conflict resolution, ...
Abstract: Building Information Modeling (BIM) has been employed in the AEC industry to provide the data repository for the various stakeholders of construction projects in past years. For example architects use it to streamline the information transition throughout the design phases of a project, structural and MEP engineers use BIM as ...
Abstract: This research introduces the roadmap of Establishment of Korean Traditional House Component Library Project (EKTHCLP) which developed an open BIM-based library system for new Korean traditional house components. In the project, the authors defined a parametric library by an XML-based approach; implemented the library to a browser and then developed ...
Abstract: Recently, Home use digital camera equipped with GPS and compass are available in the market. Some of them are equipped with accelerometer and perform positioning in places where receiving GPS signal is difficult. Using such digital cameras, we can record position and direction of cameras on EXIF information of pictures. ...
Abstract: Real-time occupancy information is valuable to the building industry for a wide variety of applications such as on-site safety management, energy conservation, emergency response and so on. With the emergence of various technologies that can potentially be used for indoor location sensing (ILS), the building industry is in search for ...
Abstract: Construction projects inherently possess uncertainties, which represent risks and opportunities to contracting business entities. Their business success, therefore, is largely defined by how these uncertainties are managed from the planning and estimating to execution phases. Traditionally risks, in particular, have been dealt by converting them into the form of a ...
Abstract: Chinese mediation mechanism has long been relied to resolve every kind of disputes from Western Zhou Dynasty (1046-771 BC). Contemporary Taiwanese legal system inherits this invaluable culture and introduces foreign laws into its legal system. Since dispute board (DB) and the way to enforce its decisions has been widely discussed ...
Abstract: The limitation in the design space of industrialized housing opens up possibilities for the creation of customer focused configuration systems and for increased level of design automation. The creation and performance analysis of design variants can be made quicker and be of better quality with the help of such configuration ...
Abstract: This paper deals with the development of information system for steel fabricator to manage its production and delivery works. Each fabricator has different production and quality management capabilities. However, most of the proposed information models for steel construction management have focused upon the construction site for delivery and erection of ...
Abstract: An effective Incentive/Disincentive (I/D) rate should fall above what a contractor needs to turn a profit by exceeding Contractors Additional Cost (CAC) for expediting construction and below the total cost saving by the agency. However, determining this type of I/D rate has been extremely challenging because of contractors reluctance to ...
Abstract: Existing buildings represent the greatest opportunity to improve building energy efficiency and reduce environmental impacts. However, millions of decision makers of the buildings usually lack sufficient information or tools for measuring their buildings energy performance. The goal of this project is to develop and evaluate rapid low-cost measurement and modeling ...
Abstract: This paper presents a comprehensive refinement of system modeling and optimization study of air-cooled direct expansion (DX) refrigeration systems for commercial buildings to address the energy saving problem. An actual DX rooftop package of a commercial building in the hot and dry climate condition is used for experimentation and data ...
Abstract: The overall attainable reduction in energy consumption and enhancement of human comfort of Heating, Ventilating, and Air Conditioning (HVAC) systems are dependant on thermodynamic behavior of buildings as well as performance of HVAC components and device control strategies. In this paper by refining the models of HVAC components, the influence ...
Abstract: The primary consumers of building energy are heating, cooling, ventilation, and lighting systems, which maintain occupant comfort, and electronics and appliances that enable occupant functionality. The optimization of building energy is therefore a complex problem highly dependent on unique building and environmental conditions as well as on time dependent operational ...
Abstract: This paper describes the application of machine vision technology to prevention of collision accidents with heavy equipment such as hydraulic excavators and cranes. The images of the back side of heavy equipment with cameras which can take a picture with 180 degree shooting angle were captured and the worker was ...
Abstract: Construction progress monitoring has always been a major concern for managers. Several are the advantages provided by a reliable approach in this field, among which we cite efficient project performance control and quality control, timely on-site inspections, better control of health and safety prescriptions against job injuries and fatalities, which ...
Abstract: In this paper, demographic change and ageing societies are identified as potential drivers for the development and implementation of pervasive technologies in our environment. Computers and Microsystems have become smaller and cheaper and become a part of our life and society. Wearable Robots, advanced prosthetics and sensor implants even aim ...
Abstract: In the competitive market of the construction industry, construction firms attempt to implement the projects with the least cost and time, and the highest quality. They try different ways to increase the efficiency of their projects. One of the most important factors which affects the efficiency of construction projects is ...
Abstract: Collisions on construction sites are one of the major causes of fatal accidents. The complexity of equipment operations require detailed planning and better real-time control of the work. Research involving artificial intelligence in construction industry has been done to enhance communication between team workers and resolve distributed problems, for example, ...
Abstract: Crane lift path planning aims to find a collision-free trajectory for the lifted object among on-site obstacles from its pick location to the final location. However, the current manual planning process is time-consuming, prone to errors, and requires the practitioners to have exceptional visual abilities, since the construction site is ...
Abstract: Excavators are widely used in public works and construction sites. Semi-automated or automated excavators are also being developed. They are used for very dangerous tasks such as building dismantlement and disaster restoration. Under difficult circumstances, it is more efficient to use an excavator operated with a remote control system. Many ...
Abstract: Conceptual cost estimates, are prepared at the very early stages of a project, and generally before the construction drawings and specifications are available. At this stage, cost estimates are needed by the owner, contractor, designer, or funding agencies for determination of the feasibility of a project, financial evaluation of a ...
Abstract: The reconstruction of surfaces from unorganized point clouds can be of great use in construction applications. Point clouds are mostly created by 3D scanners. Another technique for generating point clouds is the structure-from-motion technique, where the point cloud is generated from a sequence of images. This paper utilizes a surface ...
Abstract: Automated recognition of worker activities has the potential in aiding quick assessment of labour productivity on construction sites. A novel method called accelerometer based activity recognition has been investigated and preliminary results show that it has good potential for deployment in construction environment. The major decisive factor influencing the performance ...
Abstract: If all data, records, checklists and photographs accumulated during quality checks and labor safety inspections at construction sites are not systematically arranged, stored and tracked. The status of improvements is not confirmed and tracked in a timely manner, not only will engineering quality and construction safety be influenced but work ...
Abstract: Information management became the tidal for most occupations. An effective management system to inte- grate related information for relaxation camp can provide effectiveness from different phases. This can enhance the farm value, feedback with ecology care, and significantly assist for long-term development. In Medium-range Construction Plan for Important Sightseeing Scenic ...
Abstract: The unpredictable traffic condition around the construction site and the operators uneven productivity often make it difficult to rapidly identify an optimum combination among various excavation and hauling units in a soil excavation process. Construction professionals often end up increasing the number of vehicles to manage unpredictable risk, which obviously ...
Abstract: Recent years, new construction systems as AMG (automatic Machine Guidance) and AMC (Automatic Machine Control) have been developed with the Global Positioning System (GPS) and made fit for practical use. Added to this, an indirect measuring theory to control the compaction extent and elasticity, which uses the acceleration data of ...
Abstract: Building information modeling (BIM) is significantly influencing the way in which building and engineering projects are being planned, designed, constructed and maintained. It has been widely advocated that BIM will significantly reduce design and construction errors as well improve project cost and schedule. There is a lack of empirical research ...
Abstract: Obtaining and utilizing as-is information with 3D imaging technologies, such as laser scanners, during various phases of facility life-cycle is becoming common practice. Both during construction and facility operations information derived from laser scanner data can serve many purposes by providing accurate information about the conditions of the facilities at ...
Abstract: A navigation network is required for analysis in several activities during various phases of a building lifecycle, such as building accessibility analysis [22], building egress code compliance ([15], [11]), wayfinding [10], indoor positioning [18] and navigation guidance [18]. Various models for representing navigation networks have been proposed in literature [1], ...
Abstract: The main function of Building Information Modeling is to establish the common internal project-related in- formation for each stage for the whole life cycle of the building. User can fetch and store related information in this inte- grated platform. The data input by former user can be fetched by other ...
Abstract: This study provides an enhanced data model which can represents bridge components in a 3-D model hierarchically. The bridge components were identified through careful investigation of standardized classification systems of construction information, official dictionaries, and technical documents. The identified components were classified into spatial, physical and part elements and defined ...
Abstract: In order to improve the energy efficiency of buildings, many sensors have been being installed in buildings for monitoring temperature, humidity, electricity consumption, etc. In the Building Energy Management Systems (BEMS), it seems that visualization of the monitoring data is the main objective and that managers still have to find ...
Abstract: Vision based tracking can provide the spatial location of project related entities such as equipment, workers, and materials in a large-scale congested construction site. It tracks entities in a video stream by inferring their motion. To initiate the process, it is required to determine the pixel areas of the entities ...
Abstract: Tracking of goods in production and distribution lines is required by manufacturers, retailers, and customers, as well. Companies usually control the quality of their production in the manufacturing phase, but products can also be controlled along the distribution and transportation steps, before they are delivered to customers. The main objective ...
Abstract: The Ministry of Land, Infrastructure, Transport and Tourism of Japan has led the CALS/EC initiative to introduce ICT in public works since 1996. In line with the CALS/EC initiative, documents, plans and data associated with public works are to be delivered in digital form which is called as 'e-delivery'. Therefore ...
Abstract: Interface management plays an important role in construction management due to construction projects tend to be complex. A lot of organizations are joined and implement their own responsible activities. Furthermore, interface- related information is usually distributed in individual participants and not shared with others, and the information about interface problems ...
Abstract: Asset management has been truly a buzz word in recent years for infrastructure management professionals as a promising framework to achieve the optimal use of financial resources and to find smart and carefully crafted decision making processes on maintenance, rehabilitation and replacement activities. This paper addresses major theoretical issues that ...
Abstract: Complex construction projects are subject to numerous constraints that limit the commencement or progression of field operations. Effective management of these constraints is a key element in the look-ahead planning process to ensure a constraint-free work plan, and thus efficient field operations. While past studiesprimarily deal with a limited set ...
Abstract: Construction companies require a management system to increase efficiency and profit due to the competitive and globalized business environment. Changing business environment also requires prompt and flexible responses such as establishing management strategies, increasing value of intangible assets, and measuring and collecting real-time data. Specific approaches are also called for ...
Abstract: Urban renewals in an area or district consist of multiple facilities construction projects, and thus, should be managed as a program. Successful program management is enabled by seamless information of subprojects during its whole lifecycle. In the aspect of data management, program is differentiated with project by its own management ...
Abstract: Urban renewal mega projects consisting of a number of individual projects should be approached from the program level. BIM (Building Information Modeling) can feed information from product models of individual facilities to program management. In order to this end, the projects that are parts of a program have broken down ...
Abstract: Urban Regeneration, a program of land redevelopment in areas of moderate to high density urban land use, has complex procedure and consists of large sub-projects. This make a difficulty in understanding the overall work procedure and acquiring various information which are required to perform work. Especially, information and professional knowledge ...
Abstract: The construction business is gradually progressing towards the implementation of large-scale mega-projects for the creation of a synergy effect within limited grounds. However, various problems are manifesting, such as increased project costs, delays in the construction duration, and conflicts between stockholders. Thus, this study aimed to develop a web-based CBS ...
Abstract: The conceptual phase of capital projects is of strategic importance - an economic evaluation at this early stage is critical to the owners decision-making with limited information. The current study developed a comprehensive but practical system that can be used in such an early phase for economic evaluation of capital ...
Abstract: The planning stage is important for project development because the majority of important decisions are made at this stage. Having a well-defined project plan will reduce project uncertainty and increase the likelihood of the projects success. In other words, based on the level of project definition in the planning stage, ...
Abstract: The accurate registration of 3D point clouds with project 3D/4D models is becoming more and more important with the development of BIM and 3D laser scanning, for which the registration in a common coordinate system is critical to project control. While robust solutions for scan-model fine registration already exist, they ...
Abstract: This research developed an integrated radio frequency identification with building information model (RFID-BIM) to manage life cycle information related to open-building projects. The modularized components of open- building, including structural support systems and infill systems (e.g., partitions, facilities and pipes), which permits repetitive assembly and disassembly. Contractors prefabricate standard modular ...
Abstract: The operation and management plan for a lift, an important factor determining work productivity on a high- rise building construction site, has long been considered to be less significant than those for a tower crane, which has resulted in a lack of studies of systematic operation planning for lift. Due ...
Abstract: This paper describes the ICT-based work management to enhance collaborative works and interactive communication, and to grasp significant information in order to support unmanned construction for post-disaster restoration. Firstly, this paper reports the unmanned constructions that have been and are being done in the Unzen restoration project. Secondly, are presented ...
Abstract: Scouring around bridge piers is the important safety issue of bridge management since it could lead to bridge slanting and collapsing. Since the mechanism of water flow around the pier structure is so complicated, which makes it is very difficult to develop a generic model to determine the scour depth. ...
Abstract: This paper presents the drive bearing evaluation system to quantitatively describe and evaluate driving peculiarities and styles regarding dump truck drivers in a haulage work. The drive bearing represents appearance and motion in driving. It would provide site-manager and resident engineers with quantitatively suitable indices to guide or instruct drivers under their ...
Abstract: Commercial buildings in metropolises are increasing in number or in sophistication or both. The facilities therein, including building works and services installations, entail effective maintenance to ensure satisfactory performance. Owing to uncommon use of fully-automated maintenance systems and concerns with disclosure of maintenance data, there are so far very limited research ...
Abstract: In present the unmanned construction system technology is adapted on initial operation against of the disaster occasion. For instance it has been used in Unzen. It depends on the scale and site situation of disaster which system should be applied to. A lot of remote control technology of operating construction ...
Abstract: Due to the urgent need for a response to energy security, aging commercial buildings are required to conform to increasingly stringent environmental standards, particularly with regard to energy and water consumption. Solutions to reach the energy-related goals seem to exist. However, it is often difficult to gain synergistic benefits from ...
Abstract: Nowadays, Terrestrial Laser Scanner (TLS) is a crucial device in order to acquire geographical data easily. In recent years, advances in accuracy and velocity have enhanced 3D models, but these stand-alone data do not provide the feature extraction. High density point clouds can be obtained with terrestrial laser scanner and ...
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Abstract: Steel bridge erection requires a series of processes in the construction site including shipping, sequentially lifting, and installing bridge components that are fabricated in the factory. Each process is critical and the risks are high due to the fact that conditions in the field are far more complex than in ...
Abstract: The use of Building Information Modeling (BIM) in the construction industry is on the rise. It is widely acknowledged that adoption of BIM would cause a seismic shift in the business processes within the construction industry and related fields. Cost estimation is a key aspect in the workflow of a ...
Abstract: Recent changes within the digital business environment have shifted construction industry toward a more adoption of new technologies as BIM(Building Information Modeling). However, adoption of BIM concept or 3D drawing means a lot of time and labors are needed to develop the 3D model of structure, also all participants in ...
Abstract: Current building climate control systems often rely on predetermined maximum occupancy numbers coupled with temperature sensor data to regulate heating, ventilation, and air conditioning (HVAC). However, rooms and zones in a building are not always fully occupied. Real-time occupancy information can potentially be used to reduce energy consumption. The paper ...
Abstract: This paper explores future requirements of project management information systems (PMIS) for professional construction management (CM) firms. Current constituents and effectiveness of CM-PMIS were analyzed first by surveying ten CM firms in South Korea. The composition of PMIS was quantitatively investigated by two dimensions; system configuration (e.g. in-house developed, ERP/ASP, ...
Abstract: Urban renewal requirements have been important issues for local governments in Taiwan and therefore many urban renewal projects were initiated in the past few years and such demands will be increased in the future. According to past performance of urban renewal projects, projects suffered tons of problems, such as project ...
Abstract: In highway construction, Incentive/Disincentive (I/D) contracting provisions have been widely used to motivate the contractor for early completion of roadway construction in the United States. Although I/D provisions are one of the owners useful management tools, there is no systematic decision support system for the selection of I/D projects. This ...
Abstract: The construction industry has had considerable criticisms on inefficiencies in the quality and outcomes of professional services in project delivery. These criticisms have spanned design, estimating, procurement and construction, whilst a range of manifestations of inefficiencies have been reported in forms of errors, conflicts, omissions, mistakes and descriptive ambiguities. Although, ...
Abstract: Maintenance of subway tunnels and stations is one of the most difficult areas because of limited allowed inspection time and complex environment surrounding the infrastructures. Congested urban buildings and underground facilities make the construction and renovation of subway infrastructures more troublesome. In this paper, 3D information models including geometry models ...
Abstract: Assembly task is an activity of collecting parts/components and bringing them together through assembly operations to perform one or more of several primary functions. As an emerging and powerful technology, Augmented Reality (AR) integrates images of virtual objects into a real world. Due to its self-characteristic features, AR is envisaged ...
Abstract: With the increasing complexity of modern construction projects, maintaining operational safety while increasing the erection speeds of cranes has become an important issue. There are four major problems in current crane operations: (1) dynamically changing working environments, (2) limited viewsfor operators, (3) unclear communication between operators and other crew, and ...
Abstract: Data fusion can be defined as a process for integrating information from multiple and heterogeneous sources to obtain a composite and augmented inference about the state of an entity. Data fusion has been successfully applied in several fields. Its usefulness is becoming evident for the enhancement of automated and remote ...
Abstract: In this paper, we show that automated con -and deconstruction systems often are complex combinations of horizontal and vertical process, assembly and logistics sequences. The combinations of those horizontal and vertical sequences are exactly what characterize todays ship production. Shipyard technology is highly advanced and individual, customized ships are built ...
Abstract: In this paper, we address a new technique for automatic construction of steel structure in high-rise buildings termed RCA system (Robotics & Crane based Automated Construction System). RCA system can be divided into four core systems: 1) Monitoring and control system, 2) Material assembly system, 3) Beam assembly system, 4) ...
Abstract: The implementation of changes in construction projects often causes deviations from the objectives of the project client. One of the causes of this problem is that the tools currently used in projects do not support the identification of the consequences of a change before it is implemented in the project. ...
Abstract: Novel rock breakage techniques are becoming more viable. According to a major research report on explosive free rock breakage (EFRB) completed by the authors and others, the use of microwave energy was highlighted as a high potential technique in assisting the breaking of hard rocks. Microwave energy, as a thermal ...
Abstract: This paper highlights the limitations of the current applications of EVM method in forecasting project durations and introduces a novel concept, embedded in an integrated method, in lieu of those currently in use. The proposed method is designed to improve the accuracy of forecasting, and can be used as an ...
Abstract: This paper presents a novel framework for the integration and development of multi-agent based computation techniques to bridge the cyber/physical divide to enhance early stage design decision-making. Through the development of feedback loops of simulated occupancy behavior with design process, the framework presents a new paradigm for the integration of ...
Abstract: Construction accidents that involve cranes often relate to struck-by incidents, when the crane or its load is in too close contact with personnel, objects, and/or other equipment. In these incidents, limited or poor visibility of resources in the surrounding work space is often the cause of the problem. The result ...
Abstract: Lane closures during paving operation on roads usually restrict the continuity of paving operations and traffic flow, causing delay in paving time and delay of traffic flow time. This paper studies the resurfacing operation of highways using computer simulation. It describes the different types of traffic control devices. It also ...
Abstract: Construction estimates are a product of rigorous data analysis involving sophisticated data from a diverse range of multi-disciplinary sources. These data, often voluminous, are of different quality and are set to achieve slightly different goals which are not necessarily identical to the goal of the estimator. They are also engineered ...
Abstract: Maintenance strategies are typically implemented by optimizing only the cost whilst the reliability of facility performance is neglected. This study proposes a novel algorithm using multi-objective particle swarm optimization (MOPSO) technique to evaluate the cost-reliability tradeoff in a flexible maintenance strategy based on non-dominant solutions. Moreover, a probabilistic model for ...
Abstract: UbiConsEye a "construction site automatic control system" as a more convenient and construction of the surrounding terrain and varied spatial object features and locations to investigate and measure the actual construction work on site is in progress the field situation, the desired time and field installation of terrain and facilities ...
Abstract: The essential role of design process visualization is to capture and represent design information as well as the change of design objects to keep track of reasons behind decision-making activities. The most prominent benefit of BIM, among its wide-spectrum potentials, would be that it made possible to consider simulated building ...
Abstract: A large research program of digital product process has been active (2008-2012) in Finland. The goal of the program has been to increase customer orientation and productivity in company networks that design and deliver products, systems and services to global markets. For small and medium sized companies the developing of ...
Abstract: In the current way for construction cost estimating by using application software in China, the generation of bill of quantity usually needs plenty of manual work, because the design results cannot be used directly. BIM (Building Information Modeling) technology has provided a potential approach to generating bill of quantity more ...
Abstract: Facilities management (FM) usually is difficult and complicated work. The facility staffs usually use paper or information system to record the facilities maintenance work. However, it is not easy for facility staffs to refer the traditional 2D CAD-based information illustration in the facility maintenance. Moreover, the information of same facilities ...
Abstract: In Taiwan, government procurement still relies on the traditional paper-based approach. Much information is mis-carried and then mis-interpreted when procurement information is transferred from that of paper to digital form. This creates design negligence, conflicts, mis-calculations, and inconsistencies among drawings, specifications, etc, which often cause change orders and contract disputes. ...
Abstract: As the IFC (Industry Foundation Classes) was introduced to exchange data between different BIM (Building Information Modeling) applications, construction professionals speculated how effectively it would solve the interoperability issues between these applications. Although previous investigations have demonstrated some limitations of the IFC in terms of exchanging the geometry of the ...
Abstract: In recent years, global warming leads rainfall intensity stronger than before. Therefore, bridge management requires a reliable monitoring platform in current, to monitoring of bridge piers based on the variations of safety and river erosion, can be timely warming of the bridge damage, achieving the maintenance of bridges safety in ...
Abstract: As the need to develop semiautomated and automated construction equipment increases in the construction industry, 3D work environment representation becomes increasingly important. Accurate, realistic, and rapid 3D representation of the work environment can be utilized for obstacle detection and collision avoidance by providing information about the state of the work ...
Abstract: Visual inspection is currently the major approach to evaluate the structural condition of a bridge. Some researchers have done good work on applying special inspection vehicles and robot arms to increase the efficiency and reachability of inspection process. However, such heavy equipment is highly restricted in working space and is ...
Abstract: Infrared thermography has proved to be an adequate technique for building inspection, as it can be used to determine energy efficiency through the measurement of heat losses, air leaks and infiltrations, and also to detect humidity areas. These parameters have great influence in energy consumption of buildings and in their ...
Abstract: This paper will discuss research on ant locomotion, especially in climbing adaptability and transversing steel bridge configurations, for the design of a climbing robot for inspection and condition assessment of complex steel bridge structures. Experiments in ant locomotion were performed and captured using high-speed video equipment capable of recording at ...
Abstract: With continuous advancements in the performance and economics of mobile/remote technologies and computer-aided manufacturing (CAM) systems comes an increase in the plausibility of semi-autonomous construction devices for deployment in response to large-scale humanitarian disasters. Robotic building-making machines capable of continuously and safely erecting replacement housing, urbanistic architecture required for resettlement ...
Abstract: Site layout planning is the task of determining optimum location for construction facilities on the site in order to increase productivity and safety of the project. Most of the existing studies assume all facilities are required for the entire duration of the project which is not a realistic scenario. More ...
Abstract: Technological and conceptual advances in fields such as artificial intelligence, robotics, and material science have enabled robotic architectural environments to be implemented and tested in the last decade in virtual and physical prototypes. These prototypes are incorporating sensing-actuating mechanisms that enable interaction with their users and surroundings in real-time. While ...
Abstract: Mass Rapid Transit (MRT) station is the transport node, with population concentrated, closed-space, more gates this type of space a high risk of accidents hidden. The study based multi-agent simulation (MAS) system to create wayfinding simulation in MRT station, to create an effective evacuation simulation model. It can use to ...
Abstract: The unique, complex and interdependent nature of modern construction operations means that the use of previous datasets in simulating a new project may raise validity issues. To address this problem, the use of real-time data in simulation studies has been introduced and practiced in recent years. However, little is known ...
Abstract: Time-cost tradeoff (TCT) problems have been studied extensively in construction management literatures. TCT decisions, as combinatorial optimization problems, are difficult to find out their optimal solutions. However, Genetic Algorithms (GA) coupled with chaos and K-means clustering approach, named KCGA, can tackle these problems effectively. KCGA has successfully incorporated two opposite ...
Abstract: The construction site layout (CSL) design presents a particularly interesting area of study because of its relatively high level of attention to usability qualities, in addition to common engineering objectives such as cost and performance. However, it is difficult combinatorial optimization problem for engineers. Swarm intelligence (SI) was very popular ...
Abstract: This paper presents a study conducted in collaboration with large Canadian engineering, procurement and construction management (EPCM) firm to identify areas of improvement in the current process of progress reporting and forecasting project status at different targeted future dates. The study focused mainly on trending and time/Cost control of engineering, ...
Abstract: Taiwan is an island exposed to various natural disasters. Currently inventory and inspection data of the existing 28,000 bridges in Taiwan are managed by the Taiwan Bridge Management System (T-BMS). Thus, this research aims at developing a mechanism for fast and automatic evaluation of bridges abilities to resist possible damages ...
Abstract: Surveys found that large contractors replace approximately 10% of their equipment fleet units annually in North America. Cost minimization model is a commonly accepted method for equipment replacement which helps to identify these equipment units whose total owning and operating cost reaches their minimum point as candidates for replacement. While ...
Abstract: Batching production is to process products in lots rather than by the piece and most activities in repetitive construction projects are performed by batching production. Batch size is a key factor which affects duration of construction project and it is recommended to use small batch size for early completion of ...
Abstract: A lot of construction residual soils are generated each year in major construction projects in Taiwan. Currently a Construction Residual Soil Report System (CRSRS) is implemented in Taiwan. It requires to report every month on the sources and destinations, as well as the amount of residual soils. The local government ...
Abstract: Engineering consultation is a knowledge intensive industry. It operates by providing design-related technical services. Although design cost is relatively far less than construction cost, the decisions made in the design phase have a significant impact on the project, especially for large public construction projects. Therefore, this research focuses on establishing ...
Abstract: The interfaces during the construction phase usually cause reworks and conflicts among different project participants. In order to improve construction management, it is necessary to track and solved interfaces when these interfaces will influence the construction works. In practice, the interface information is usually available in related participants and few ...
Abstract: Schedule delays commonly appear in construction projects and result in delay claim progressively. Several studies have proposed various schedule delay analysis methodologies. By using the as-planned and as-built schedules, most previous studies focus on the impact calculation of identified delay events on project duration. They consider the schedule variances between ...
Abstract: Currently, the construction industry, which is already both high-innovated and sophisticated, is searching for new solutions in accordance with the incorporation of information technology. The objective is to create a high value construction industry through convergence with IT technology. However, there is no business model which is practical, profitable and ...
Abstract: Tools like ROS and Gazebo have become more important in light of new building concepts with embedded robotic systems. Over centuries buildings have always been viewed as static structures resistant to changes. However, today they are also viewed as kinetic structures capable of change and adaptation. The concept of kinetic ...
Abstract: Intelligent excavator has four sensors which can detect the length of each cylinder and electronic valves which are used to control flow rate of hydraulic oil electrically. Intelligent excavator is controlled by the information from these sensors and control signals. Using the position control, excavator can work on the programmed ...
Abstract: One of the traditional methods to assess the quality of the coating on the steel bridge surface is calculating the ratio of rust to the total area of coated surface. In North America, digital image processing has been applied on quality assessment of steel bridge coating since late 1990s due ...
Abstract: Maintenance measures at infrastructural buildings such as bridges or tunnels in urban areas always have influence on the traffic flow. Finding a schedule that keeps this impact as low as possible by considering the mutual interaction between several road closures is a highly complex optimization problem. In a current research ...
Abstract: Road signs appear as one of the most important elements for safety purposes and their inspection is typically included in the road management systems. Nowadays, it is becoming more common the use of high performance vehicles to improve the efficiency of the road inspection works. They include sensors as laser ...
Abstract: Availability of accurate location information of components decreases the search time and increases the chance of using shared resources. In our previously proposed framework, RFID tags are attached to components at an early stage of the lifecycle and their memory is used for various purposes throughout the lifecycle. In this ...
Abstract: This manuscript reports the findings of a research endeavor that has characterized the process to deliver detailed workshop and erection design documents for steel structures when outsourced to offshore design service providers, and has assessed the influence of these design processes on construction operations. The study has considered all aspects ...
Abstract: Recently, the curtain wall systems are widely used for the exterior walls of the buildings. In this regard, many studies on their cleaning and maintenance methods are being carried out. Now in order to review on the possibility of the attachment of the cleaning robot to the existing buildings, it ...
Abstract: This paper presents an Internet-based design collaboration of multi-disciplinary teams for the development of a Building Information Modeling (BIM) model. The network allows geographically separated design teams to work simultaneously on a single shared BIM model, using a distributed system to achieve design integration and conflict resolution. A synchronous collaborative ...
Abstract: One of the economical ways of transporting crude oil or gas over long distances is through onshore pipelines. Construction of onshore pipelines, involves considerable repetitive activities at various stages of the project. Cost incurred in the construction of pipelines depends on the length of the pipeline, the route and the ...
Abstract: Building Information Modeling (BIM) is not a novel concept, but there is a growing interest in design collaboration using BIM for construction management in the AEC industry. Recently, mobile computing and augmented reality (AR) become new variations on desktop computers since the combination can create ubiquitous workspaces for practices by ...
Abstract: With the increased awareness of energy consumption as well as the environmental impact of building operations, architects, designers and planners are required to place more consideration on sustainability and energy performance of the building. To ensure most of those considerations are reflected in the building performance, critical design decisions should ...
Abstract: The development of prefabricated facades, using architectural concrete panels or GRC panels, starts by cutting facade maps included in the architectural project. The aim of the architectural department is creating a design of the panels, taking care about the viability in terms of dimensions, weight, location, etc, and also looking ...
Abstract: Although many efforts have been exerted to increase safety on construction sites, it has never been easy to run a construction project with zero accidents. Previous research indicated that lessons learned from previous projects could help construction professionals prevent repetitive mistakes, but those lessons are based on individual experience, and ...
Abstract: This paper presents an experimental case study for managerial process standardization that is supported by theoretical foundations that authorize, integrate, and optimize organizational decisions. The concept of Managerial Process Standardization improves the procedural ability of a business organization to efficiently process, exchange, measure and reason about management decision-making. This paper ...
Abstract: This research is to identify impact factors in both cost and benefit aspects using quantitative techniques and then to determine their corresponding weights for sustainable road engineering projects. The impact factors are initially gathered from literature review and expert interviews, resulting in a total of 10 factors for questionnaire development. ...
Abstract: Owing to the characteristics of construction linear projects, work efficiency is always addressed by prior researchers. However, most studies only consider single-skilled crews for linear projects, and the flexibility of multiskilling in construction is neglected. Recently, researchers have reveals that multiskilling in construction can increase the productivity, flexibility, and continuity ...
Abstract: Conducting a design project of a high-tech facility requires various specialties and rigorous user needs provided from the facility client. Sometime, project client will form a matrix organization with several interrelated functional and projectized divisions to decide those requirements and needs. However, an ill-defined matrix organization very likely causes late ...
Abstract: The demand of Liquefied Natural Gas (LNG) is on a steady increase, and the estimation of world LNG consumption will be doubled by 2030 compared with 2005. In the wake of increasing demand, numerous LNG plant projects are under construction and many new projects are in the planning stage. However, ...
Abstract: Ever improving smart phones and mobile computing technologies provide engineers unprecedented opportunities to innovate the existing processes of construction projects. Researchers in the construction industry tried to use mobile computing technologies for enhancing the management process of construction project on site. This study aims to present a location-based construction site ...
Abstract: In order to maintain security of the bridge and prevent life and property losses caused by earthquakes, typhoons, erosion and other disasters, it is worthwhile to explore the installation of monitoring and management system for bridges. However, in the current bridge management process, most of the discussion is divided into ...
Abstract: In this paper, we develop an algorithm for avoidance of earth obstacles using model-reference impedance control for autonomous excavator. There have been many research in the past regarding autonomous excavation, which were only concerned about position control, force control and path generation. However in order to apply the control system ...
Abstract: In Korea Water Resources Corporation (K-Water) has seen four problems rising in four aspects of property management of approximately 1,200 buildings scattered through put to country. To solve these, ground data for repair and replacement works to be conducted for prevention and will be prepared and building maintenance system (hereinafter ...
Abstract: There are a large number of high-rise buildings equipped with facades (curtain-walls) in modern cities. These facades must be periodically maintained with manual procedures that are costly and risky. For this reason, the interest in developing and employing service robots for the building maintenance has been increased. Automation and robotics ...
Abstract: High-rise apartment projects in Korea have been built up to twenty stories with three to fifteen hundred multi-family units. When these projects are under construction, operation of lifting equipment such as tower cranes substantially influences project costs and scheduling. In other words, the operation of an appropriate crane based on ...
Abstract: Up to now there are robots specializing in stationary industrial operations. The building industry is a highly diversified and dynamic branch and, therefore, robotic systems are not used on the construction site during the building process at all or in a very limited way to handle loads. There exist robotic ...
Abstract: There are two essential management objectives in the construction industry: improvement of construction speed and reduction of materials used. A representative attempt to achieve these objectives, modular housing technologies have been actively applied in many developed countries, including Japan. Modular housing is a method by which a house is assembled ...
Abstract: This paper deals with robust position control of electro-hydrostatic actuator (EHA) systems with system uncertainties. EHA systems compared with conventional hydraulic actuator (CHA) systems are controlled by electric motor directly connected to bidirectional pump and its size is much smaller due to the component integration such as a pump, a ...
Abstract: Current construction project planning tends to be made based on a planners experience, opinion, or equipment suppliers technical support. Furthermore, there is inefficiency and error occurring due to lack of materials for project planning, easy-to-use guidelines or tools. Construction planning needs to accommodate predicted scheduling and be regularly modified to economically ...
Abstract: The Honam High-Speed Railway Lot No.4-2 consisting of 6 bridges including the arch bridge, the extra- dosed bridge and 2 tunnels with a total length of 9.38km and the whole construction work should be completed within 31 months only. In order to control the detailed cost and the construction process ...
Abstract: The construction industry consists of various and massive architectural information as an architectural process includes a variety of design stages with cooperation of many disciplines. A Building Information Modeling (BIM) serves as a shared knowledge resource for information about a facility forming a reliable basis for decisions during its life- ...
Abstract: Overseas construction markets reignited since 2003 overcoming the global economic crisis, while construction markets are growing in Asian developing countries such as Middle Eastern region, China, Philippine, etc. Many of Korean builders operating in such countries are carrying on abroad with around half the total construction orders. Most construction works ...
Abstract: The study proposed a maintenance rating program (MRP) in Taiwan which combines the methods of DEcision MAking Trial and Evaluation Laboratory (DEMATEL) and Analytic Network Process (ANP) to evaluate maintenance activities accurately. In the view of the provincial and county roads in Taiwan, DEMATEL was employed to compute the effects ...
Abstract: Compared with the method of predicting the detailed construction cost based on the information of the detailed quantities derived from the completed work drawings and specifications, the method of predicting the approximate estimate based on facility specification or approximate design information, etc. at the stage before the drawings and specifications ...
Abstract: The repetitive occurrence of similar accidents is one of the most prevalent features of construction disasters. Similar accident cases provide direct information for determining the risks of scheduled activities and planning safety countermeasures. Researchers have developed many systems to retrieve and use past accident cases. However, this research has ...
Abstract: An earthwork for land development projects, which possesses around 20% of the total project cost, consists mainly of simply repetitive tasks such as loading, hauling, dumping, and returning and depends largely on heavy construction machines. The goal of earthwork planning is to minimize the project cost and duration by determining ...
Abstract: The recent development of ubiquitous computing has resulted in an improvement of management performance through real-time monitoring and control. Especially, in high-rise building construction with reinforced concrete structures, form work requires effective management systems to reduce the duration and cost of structural frame work and subsequent activities. Recently, a concrete ...
Abstract: From the end of 20th century, developed countries are making efforts to regenerate old downtown areas of their cities. Urban regeneration program can be simplified as the demolition of existing deteriorated buildings and the construction of multiple new facilities. To maximize the benefit of the construction program within the restricted ...
Abstract: In the 21st century, knowledge has become one of the management paradigms which determines the organization competitiveness. Therefore, construction companies strive to strengthen the capacity of organization by introducing the knowledge management. However, the current knowledge management system applied in the construction industry is operated without a business process. Hence ...
Abstract: Recently, the abnormal climatic changes have been frequently occurred all over world. Construction work is heavily affected by weather because it is mostly performed outdoors unlike other industries. But construction schedule management is not considered by weather in many construction sites and construction work relied on the experience and subjective ...
Abstract: In Japan, over the last 50 years, quality management of construction projects has come to involve many important issues. Moreover, it is now emphasized in all area of manufacturing. However, it may prove difficult or impossible to assure satisfactory quality, relying only upon laws and regulations concerned with quality measurement. ...
Abstract: This paper describes a method for the localization of wireless mobile clients in multistory buildings using a wireless LAN system. The method uses public wireless LAN access points for users and robots that are settled at many places in a multistory building. Data on the physical position of personal electronic ...
Abstract: The Wireless Sensor Network (WSN) technology has been employed in the field of civil engineering especially in structural monitoring and construction safety. To be used in construction safety, the time-synchronization within the sensor network is required to obtain important correlations between events, such as the prevention of equipment collisions. In this work, ...
Abstract: In recent years there has been increasing interest in innovative design and construction of sustainable high- performance buildings. Among the innovative techniques proposed to increase building performance is to dynamically sense, control and manage the ambient building environment, such as temperature, humidity, air quality, artificial lighting, etc. through the installation ...
Abstract: Transportation infrastructure plays an important role in national development. With such unique geographic environment, bridges become the majority of transportation infrastructure and building the bridges is regarded as one of the most important public construction projects in Taiwan. However, Taiwan is also known as its natural disasters such as earthquakes ...
Abstract: The objective of an urban regeneration project is recovery of urban utilities through a physical, environmental, cultural, industrial and economic regeneration. The current paradigm of urban regeneration is not a simple redevelopment as physical redevelopment or improvement. Urban Regeneration is an overall development including a central commercial capacity and business ...
Abstract: Construction process is divided into pre-design and planning, design, construction, management. Pre-design stage is very important considering the influence on other subsequent works. Recently, it is being increased that the importance of information management and decision-making support at the pre-design stage, and related researches are being conducted. As part of ...
Abstract: This study is to find out residential satisfaction, moreover, the effect in corporation performance based on a previous research of the influence on consumers behavior by consumers recognition of the quality of residential environment of apartment house. Further, the empirical study provides a theoretical model comprised of 10 research hypotheses of ...
Abstract: New smartphones generation provided with webcams, tactile screen and internet connection allow adaptation of new technologies and computer applications to this kind of devices. Augmented reality technology becomes widespread and more used each time by everyone. Augmented reality (AR) seeks creating virtual objects in user interface which superimpose over the ...
Abstract: It is almost impossible for road engineers to monitor every road and to successfully and promptly maintain and rehabilitate any defects that have been identified. Therefore, the monitoring and reporting of defects in road systems contributed from the public are indispensable. Location-based service (LBS) has been applied to mobile devices ...
Abstract: This research is a part of Intelligent Excavation System (IES) Development Project which aims the autonomous excavator for earthwork. The developed module focuses on measuring real-time productivity for Task Planning System(TPS) of the IES. This module merges 3D data obtained using two different 3D imaging systems : The 3D laser ...
Abstract: Efforts to improve building construction speed have led to a new construction type, called the modular housing. Designs and construction technologies for the modular house have been actively studied in several countries including Japan, and the technologies have also spread. A relative newcomer to this field, Korea intends to develop ...
Abstract: With the recent development of information technology (IT), automation is being introduced in the construction sites as well as in plants. This study was conducted to address autonomous driving in the outside environment as part of the construction automation task in the advanced fusion construction research project of the Ministry ...
Abstract: Due to the development of construction technology, there is a considerable increase in the number of skyscrapers in the world. Accordingly, there are rapid growing requests about maintenance systems such as cleaning, painting, and monitoring the processes of facade in high-rise buildings. However, it is extremely dangerous working the walls ...
Abstract: As residents and building owners demand maintenance that is required to achieve sustainable building performance, efficient building management methods are required. Even though the demand for maintenance systems is increasing, current maintenance work for high-rise buildings mostly uses conventional ropes and gondolas that pose a high risk of accidents and ...
Abstract: Safety inspection of concrete structures should be strictly carried out since it is closely related with the structural health and reliability. However, it is difficult to find cracks by a visual check for the extremely large structures. So, the development of crack detecting systems has been a significant issue. Final ...
Abstract: Owing to the increasing number of high-rise buildings and large glass facades and the resulting problem of safe and effective maintenance, many trials have taken place in the last few years to develop automated cleaning systems. So as to guide the robots movement on the facade, this study proposes the ...
Abstract: As technology progresses and software developers increasing effort, we can foresee that the bi-directional procedures between design/analysis platforms will be shorten dramatically over time to improve the efficiency of building model analysis. But how about the decision-making phase that even before models been built for analysis? By adopting the Space ...
Abstract: Great efforts have been made worldwide to reduce the Green House Gas (GHG) emission following the "Kyoto Protocol" declared during the United Nations Framework Convention on Climate Change in 1997. Many industries have restructured to meet the standard set by the Protocol. In construction industry, however, no clear guidance has ...
Abstract: Major sources of CO2 release caused by anthropogenic activities include fossil fuel combustion, cement production, and forest clear cut. The first two sources have been recognized as important in the construction industry; efforts have been made to find the causes of and the solutions to the emissions in the fuel ...
Abstract: There are many variations and risks in construction work and the risk is getting increased in accordance of big scale, variation and complexity for the construction work. If the process management is not planned thoroughly, it affects the construction period. . The delay of construction period causes the increase of ...
Abstract: Construction-IT convergence is necessary considering the challenges faced with the construction industry such as reduction of carbon bi-products and energy saving. To promote the convergence, having a proper business model for bringing the best services to its clients is very important. This study aims to present an Evaluation Index, as ...
Abstract: The u-City project proceeds through combining urban development with IT technology. The u-City project has more risks because it has more complexity and diversity compared with normal urban development. Therefore, the u- City project needs a comprehensive risk management system which can control risk factors quantitatively. The current study proposes ...
Abstract: Recently, CBD(Central Business District) mixed-used regeneration programs(mega-projects) composing various types of residential, commercial, office, and cultural facilities are being promoted to maximize land and space utilization in the inside and outside of the country. It has advantages that meet the functions and the needs of each facility and create new ...
Abstract: High-tech buildings lead to new organizational structures multiplying the possibilities of customization and user adaptation. As it will be outlined in the following paper, between industrialized mass customization of buildings and continuous and commercial service value chains built on flexible high-tech buildings a strong relation could be established extending the ...
Abstract: Traditionally we design, engineer and manage the product and production in construction separately. In biology or natural systems both are combined. The following paper will give an introduction to the notion of fusion of the construction as process and building as product phase. Advanced manufacturing concepts such as Konrad Zuses ...
Abstract: Lifting indicates vertical transfer of construction resources. In high-rise building, efficient plan and management on lifting of resources are essential because of enormous impact on schedule, and amount of resources and data. In particular, a hoistone of main lifting equipment for workers and construction materialsmay have direct influence on overall ...
Abstract: 3D calibration was performed for a GPR measurement system for concrete bridge decks. An old bridge having been repaired approximately two years prior with a new bridge deck part was considered in the test results. The deck, including then visible subsurface features, was measured earlier during the construction phase using ...
Abstract: A 3D calibration method was developed for a mobile laser scanning system developed in Finland. The measurement accuracy was validated using a robotic total station for reference measurements, with comparison of reference points with the triangulated surface measured by the laser scanning system. The calibration results are presented and analyzed. ...
Abstract: The paper introduces the main results of a large R&D project called 3D-ROAD carried out 2006-2009 in Oulu, Finland. The primary objective of the project was to develop a 3D functional process for enhancing road structures, utilizing automation, and improving the efficiency and quality of the measuring, design and construction ...
Abstract: The paper introduces and discusses some results of a large active research project in Finland. In this part of the research the aim was to develop an automated total process for deep or column stabilization. Based on work studies and other practical researches an economical analyze of latent economical benefits ...
Abstract: This paper introduces and discusses the aims and first results of a large active research project in Finland. One of the aims of the project is to develop an automated total process for driven piling machine. Several tests have been made and some of the results are briefly discussed. The ...
Abstract: This paper presents a study on applying an integrated application of RFID, GPS and GSM technology for mobile, pervasive and ubiquitous tracking and locating of any objects in construction supply chain and logistics. Accurate and timely identification and tracking of resource are vital to operating a well managed and cost ...
Abstract: An important feature of remote controlled machines is the realistic three-dimensional (3D) modeling system for providing information feedback to the remote operator and facilitating remote operation. This paper describes a system for creating realistic 3D models of actual construction environments for the purpose of improving and extending the capabilities of ...
Abstract: The automated detection of structural elements (e.g. concrete columns) in visual data is useful in many construction and maintenance applications. The research in this area is under initial investigation. The authors previously presented a concrete column detection method that utilized boundary and color information as detection cues. However, the method ...
Abstract: This article will be giving an overview about the technological structure of the futuristic home environments which are basically a combinations of smart environments, sustainable environments, communicable environments, Artificial Intelligence, in cooperation with mechatronic systems. These futuristic environments can be considered as a solution for the expected problems like energy ...
Abstract: Pavement maintenance requires knowing the state of the road surface. Human inspection is the most common method for evaluating this state. Recently, the automated visual inspection has been addressed, but some important questions remain open concerning the variable ambient lighting, shadows, device synchronisation and the large amount of data. In ...
Abstract: Development of nano and biotechnologies encouraged us to develop a concept of automated building, which will significantly reduce the many negative impacts of traditional construction on the environment. The paper describes the concept of Nano- to meter-scale building, a new way of building, which unfolds from the nano into the ...
Abstract: Ubiquitous computing (UC) has been an important stream in distributed computing, which is nowadays recognized as an attractive vision in ambient intelligence (AmI) technologies and home robotic systems. This paper, focusing on our work on the application of field programmable gate array (FPGA) in mobile robotics, presents a prototypical computing ...
Abstract: The ability to obtain 3D information is vital for many applications in construction, manufacturing, and vehicle automation and autonomy. TOF (Time-of-Flight) sensors, which provide depth information at each pixel in addition to intensity, are becoming more widely available and more affordable. This paper examines the applicability of TOF sensors to ...
Abstract: "The first decade of the twenty first century has witnessed a tremendous increase in the demand of sustainable buildings mainly due to mounting energy costs and growing environmental concerns. The most effective decisions related to the sustainable design of a building can be made in the planning and design phases. ...
Abstract: The rates of job injuries and fatalities in construction sites are still too high, with respect to other industrial working places. Statistics show that there are a few main types of risk accidents causing the higher number of fatalities. This paper suggests the development of a novel low intrusive real-time ...
Abstract: A wireless LAN (local area network) was proposed as a means of determining location at a construction site. The high prevalence of equipment and facilities was offered as an advantage compared to existing methods. An experiment was performed to collect RSSI (radio signal strength indications). From the results, variations were ...
Abstract: A remodeling project for deteriotated housing stocks tends to be an important issue in resources recycling because it does not destruct whole building but destruct particularly. However, compared with new building projects, remodeling project has disadvantages in adding destruct work and repair and rehabilitation work as well as causing difficulty ...
Abstract: Safety issues impact construction workforce and industry, for example by generating extra costs and delays. Achieving planned levels of productivity is crucial for the overall success of a construction project. Despite improvements in equipment and workplace ergonomics, the construction industry is still characterized by physically demanding activities and stressful environments. Excessive ...
Abstract: 3D laser scanning technology is now widely and increasingly used to create as-built 3D CAD or Building Information Models (BIM) of existing facilities and new construction. Errors occurred during scanning and data processing stages cause a higher registration error, which in return lead to inaccuracies during the modeling stage. The ...
Abstract: Three dimensional (3D) animation of construction simulation makes communication among different project participants effective by visualizing the construction operation. The effect of 3D animation becomes stronger in a more complex operation. However, the modelling process of the 3D animation requires time-consuming efforts. Thus, interactive modelling environment is strongly preferred where ...
Abstract: Construction projects involve numerous stakeholders and participants. Their communication processes can often times be tampered by ineffective communication systems. With the advent of mobile computing, the quality of communication between project stakeholders and participants could be significantly improved. In this study, for the effective communication among construction participants, an interactive ...
Abstract: The paper presents results of the bridge crane rail (CR) geometry determination with automated measurement system. The system consists of geodetic (robot station) and nongeodetic (electronic measurement systems) technologies. The robot station Leica TCA1101 (equipped with function LOCK and ATR), the three standard prisms for orientation and notebook are located ...
Abstract: This paper presents the Load-Haul-Dump (LHD) remote monitoring and management system based on delay/disruption tolerant network, which aims to manage a fleet to ensure reliable haulage operations at points on construction in hard environment. The fleet means the complement of construction machines, dump trucks, and workers that are working together. ...
Abstract: As for a backhoe, generally, the work efficiency is utilized as one of terms to calculate the work capacity. As the case stands, evaluation metrics such as performance of work tasks, operational skill levels and energy-saving effects are usually and frequently represented by qualitatively volumetric indices of capacity. This paper ...
Abstract: Academicians and industry professionals have demonstrated the use of Radio Frequency Identification (RFID) Tags in construction applications in the past few years. Recently building information modelling (BIM) technology is emerging as the industry standard in the architecture, engineering and construction (AEC) sector. This paper combines the two technologies to monitor ...
Abstract: Construction progress monitoring has been recognized as one of the key elements that lead to the success of a construction project. The first requirement for effective progress monitoring is the collection and analysis of construction progress information. Through the use of image retrieval, progress information about structural components can be ...
Abstract: Since the last few decades, electrical methods have been widely used in geophysical surveying to obtain high-resolution information about subsurface conditions. Resistivity is an important parameter in judging the ground properties, especially detecting buried objects of anomalous conductivity. Electrical DC resistivity sounding is the commonly used technique to obtain the ...
Abstract: Many studies have generated cost estimating relationships (CERs) for transportation projects via data analysis. Some studies collected data from databases, while others sourced data from conventional paper-based formats. When cost data were not in a consistent format, many studies failed to discuss the streamlining of pattern recognition. This study adopts ...
Abstract: Getting fuels, economizing with them and effective utilization of them belong to the most complex problems of the present and future. Energy saving is one of the most important environment factor in construction company with developed a implemented Environment Management system (EMS) according to ISO 14001. We tried in contribution ...
Abstract: The paper describes the main principles and results of the integrated cost estimation and project management microcomputer system developed in the last years on the base of the spatial, technological and time analysis of the building process with use of the methodology of the construction technology design. This expert system ...
Abstract: Recent advances in building information modelling (BIM) have disseminated the utilization of three-dimensional (3D) graphic information in the construction industry. Nevertheless, overall and practical effectiveness of BIM utilization is difficult to justify at this stage. The purpose of this paper is to propose a BIM framework focusing on the issues ...
Abstract: The information-intensive nature of construction projects requires site personnel to have ondemand access to several pieces of construction project data (plans, drawings, schedules, specifications, etc). This paper evaluates the capability of the CIMsteel Integration Standards (CIS/2) product model, and project information systems such as Microsoft Access databases for improving traditional, ...
Abstract: In the new era of computerized building information, communication in a design and construction project demand transactions of large volume building model data containing various engineering domains, which causes increased costs in handling large data and communication problems due to poor understanding about which data should be shared. In this ...
Abstract: Building energy simulation programs have been developed, enhanced, and are in wide-spread use throughout the building construction community (Stumpf et al. 2009). Energy modeling programs provide users with key building performance indicators such as energy use and demand, temperature, humidity, and costs. As the A/E/C industry is embracing the technology ...
Abstract: The paper introduces and discusses bridge engineering, design and construction R&D results in a Finnish bridge cluster consortium (5D-Bridge). Development of national bridge information modelling guideline in Finland is introduced, as well as latest developments in 3D modelling in practice. A library of frequently used bridge components was developed to ...
Abstract: Construction industry consists of many stakeholders and is becoming more complex and interactive. Especially, design phases have a great effect on the efficiency of construction life cycle. Unsystematic and qualitative design management has made it more difficult to accurately manage design stages. To solve this problem, this study developed Integrated ...
Abstract: For larger enterprises usually occupying vast areas, visitors usually need to take long time to reach the objective location in an unfamiliar environment. SQL Server, ASP.net, PDA, GPS, Papago Sdk, wireless communication and windows environment are used in this study to develop Space Navigation and Guide System. The system integrates ...
Abstract: The demands of building materials are often schedule-orientated during execution of a construction project. In this study, RFID, ER Model, database and IT environment were used to develop the Site Material Management System. This system integrates site material control which assisted construction companies to execute material management on construction site. ...
Abstract: This paper proposes a conceptual framework for developing a communication platform to monitoring construction projects remotely. The need for remote monitoring is a requirement today in the construction industry as the number of project sites has increased significantly and the expertise available to resolve site related problems is not easily ...
Abstract: Owing to extensive knowledge management activities are promoted in various enterprises. How to enhance the application of knowledge management systems (KMS) becomes a critical issue. One of the enhanced applications of KMS is the SOS system, which aims at sharing knowledge for solving emerging problems. While it takes time for ...
Abstract: Bill Gates today announces the era of service robotics and estimates that service robotics as part of assisted environments will undergo a similar fast and rigid development as the spread of personal computers in private and economic areas since the nineties. Already in 1961 Joe Engelberger wondered if relegating robotic ...
Abstract: Mass Customization has been introduced and applied in a multitude of industries and should now be transferred and developed further for application in construction industry. Industrialized customization offers particular advantages compared to conventional construction as it allows addressing parameters relevant for individual and sustainable construction consequently and simultaneously. An efficient ...
Abstract: Construction engineers and managers are dealing with emergent problems in their daily works. The problem-solving experiences, usually recorded as historical Lessons-Learned Files (LLFs), accumulated from previous projects are applied repeatedly in similar problems encountered. Such methodology is very similar to the Theory of Inventive Problem Solving (TRIZ) widely adopted in ...
Abstract: This study proposed a KM-oriented BPR model to assist managers to implement the knowledge management in the construction firms. Two philosophies, namely the (1) Business Process Reengineering (BPR) and the (2) Knowledge Management (KM), were combined in the addressed KM-oriented BPR model to ensure the KM operations can be merged ...
Abstract: All construction projects have unique characteristics that must be considered during cost estimating and checking activities. Especially in the conceptual and schematic design stages, owners require precise cost estimates than their information providing. However, information related to the project scope is more likely to change in the early design phases ...
Abstract: To enhance the service quality of property management companies (PMCs), this study focuses on no service quality evaluation but the new service development so that the companies can design new and critical services to meet consumers needs. Service positioning and design are two primary issues for new service development. Accordingly, ...
Abstract: Smart homes are considered a vital technology in an aging society as they compensate for a shortage in care workers. However, often smart homes do not perform well. Performance management is well known in the manufacturing industry but not common in the building industry. The performance approach is the practice ...
Abstract: Design delays can adversely affect the total completion time of a construction project. Factors affecting the delays of design duration are complicated and interrelated. This study proposes a methodology to support identify key driving factors affecting design delays and sieve out the initiating delay factors for improvement. The core of ...
Abstract: Schedule delays commonly appear in construction projects and result in delay claim progressively. Several studies have proposed various schedule delay analysis methodologies, however, most of the studies focused on the analysis of surface data (as-planned and as-built schedules), few of them on evaluating the effects of root causes, such as ...
Abstract: Onsite data collection is essential for estimating onsite productivity, measuring project performance, and tracking large earthmoving operations. This paper presents a web-based system, developed for estimating onsite productivity and tracking earthmoving operations. The paper briefly describes the main components of the developed system and focuses primarily on estimating onsite productivity ...
Abstract: Processes on a job site resemble an industrial manufacturing process. Different stages depend on each other, but are often carried out independently. Automating a job site by utilizing machine control is a way to increase productivity and reduce the operating costs. To meet the tight time schedule for a project ...
Abstract: 1969 one of the first 7 dof kinematics was designed by Konrad Wachsmann and his Team, John Bollinger and Xavier Mendoza. Except of some exhibitions within the seventies, in which this project was described shortly, the Motion Machine or Location Orientation Manipulator remained nearly thoroughly unknown. This article will present ...
Abstract: Socio-technical changes lead to new opportunities. Robots are customizing the industrialized mass production of non/manufacturing industries. Robots ameliorate adverse working and offer better living conditions during demographic changes in societies. Ultimately autonomous systems and robotics could reduce ecological footprint during extreme environmental conditions.
Abstract: This paper reports preliminary results achieved during the experimentation of a new real time localization system, especially designed in support of hospitals emergency management. This system represents the first step of a wider ongoing research project, carried on by the authors in collaboration with the academic spinoff company Smart Space ...
Abstract: This paper presents an ongoing research project concerning the development of an automated safety assessment framework for earthmoving and surface mining activities. This research seeks to determine data needs for safety assessment and investigates how to utilize collected data to promote more informed and efficient safety decision-making. The research first ...
Abstract: The purpose of this paper is presenting a new advanced hardware/software system, boasting two main features: first it performs real time tracking of workers routes in construction sites; then it implements an algorithm for preventing workers to be involved in hazardous situations. This research step is part of a wider ...
Abstract: This paper describes the development of a personal warning system for preventing construction site accidents involving workers and heavy equipment. The required functions were established on the basis of a past accidents model. The system was designed to send a warning via wireless from a server computer to a worker ...
Abstract: Water systems all over the world experience water losses. Leakage is the most common reason of water loss. Problems associated with water main leaks are a growing concern around the globe. These problems include water and energy loss, in addition to considerable properties damage. In current practice, not all water ...
Abstract: We have studied the applicability of RFID tags and developed systems to provide clear work traceability to streamline administrative task in the construction work of a plant. Our test results indicate that RFID tags can be used effectively for these purposes. We have developed a method for effectively proving whether ...
Abstract: Human motion analysis and tracking are a significant research area in the domain of computer vision. Existing systems of today focus on detection of human targets by analyzing their movements in order to recognize the different activities performed by them. Our research work mainly focuses on using detection and tracking ...
Abstract: Controlling construction projects necessitates controlling their time and cost in an effort to meet the planned targets. Management needs timely data that represent the status of the project to take corrective actions, if needed. This paper presents a control model that integrates different automated data acquisition technology to collect data ...
Abstract: Project uncertainties are always the reason of project delay or budget overrun. Especially in tight schedule or project crashing, it is hard to balance both project duration and costs. Past research focused on the optimal schedule and costs, without knowledge of its on-time, within-budget completion risk. This research provides an ...
Abstract: Large amount of construction resources and their scattered locations in a civil construction site make it extremely difficult for project managers to effectively utilize the resources. In order to manage construction resource effectively, a Radio Frequency Identification (RFID) technology was used in this research. RFID tags for metallic objects were ...
Abstract: The AECOO industry is highly fragmented; therefore, efficient information sharing and exchange between various players are evidently needed. Furthermore, the information about facility components should be managed throughout the lifecycle and be easily accessible for all players in the AECOO industry. BIM is emerging as a method of creating, sharing, ...
Abstract: The demand for the development of intelligent construction equipments is increasing gradually to deal with the current problems of construction technology such as lack of skilled workers, aging of engineers, safety issues, etc. Especially, earth work such as excavation is very machine-dependent, and there have been many researches on the ...
Abstract: Project performance control normally requires massive manual data collection the more detailed the required control information, the more labor intensive the data collection must be. Hence, the cost of collecting the data and generating the information is high and the quality, integrity and real-time availability are low. Our proposition, ...
Abstract: The present scenario in India, particularly in metro cities has restricted the horizontal growth, which led to the vertical growth for building construction. Today, fast track construction is a rapidly growing economy, brings rising costs and therefore time saving in construction can compensate significant proportions of the overall construction cost. This paper ...
Abstract: As more and more utility installation and/or maintenance activities are located in highly congested urban roadways, frequent pavement utility cuts in such areas may cause more traffic disruption as well as deteriorate pavement life and quality. Utility owners normally need to obtain permits from public road authorities before commencing utility ...
Abstract: The current global construction market is growing tremendously largely due to globalization of world construction markets, rapid development of world-wide communication technologies, extensions of regional Free Trade Blocks, just to name a few. Korean companies, in search for a growth from the recession of domestic construction market, have expanded into ...
Abstract: Problems in deep excavations are full of uncertain, vague, and incomplete information. In most instances, successfully solving such problems depends on experts' knowledge and experience. The primary object of this research was to propose an "Evolutionary Support Vector Machine Inference Model (ESIM)" to predict wall deformation in deep excavation in ...
Abstract: Knowledge has emerged or been regarded as the most strategically significant resource of the firm. From the resource-based view (RBV), the integration of individuals' specialized organizational capability through knowledge management (KM) has been considered crucial to the creation and sustainability of competitive advantages. Recently, KM has drawn immense attentions from ...
Abstract: Researchers have been studying early planning process since the early 1990's and results from these researches suggest that projects with more early planning efforts are more likely to succeed. This study intends to employ neural networks to build credible models linking preproject planning and project success. Preproject planning status as ...
Abstract: State-of-the-art products commonly outperform construction products that are used in day to day building practice. Also construction products appear to have a diffusion curve that differs from consumer products, slower at first, more rapid later. The social capital theory helps us to understand why certain actors are able to get ...
Abstract: To analyze a schedule is beneficial to understand and organize a project. Project schedules, in which time plans are created based on the Critical Path Method (CPM) or on Resource-Constrained Project Scheduling Problem (RCPSP) optimization, are targets herein. According to the concepts of the Theory of Constraints (TOC), a schedule ...
Abstract: The construction industry alone produced approximately 1.7% of total U.S. greenhouse gas (GHG) emissions in 2002. This is equivalent to 6 percent of the total U.S. industrial-related greenhouse gas emissions. GHG emissions from construction equipments on project sites are highly variable. Standardized method with accuracy and reliability is needed for ...
Abstract: In construction automation, the tracking of worker location or a moving object is important for labor monitoring, resource management, and machine coordination. For object tracking, a camera is often utilized to obtain information of construction vehicle motion which can then be employed in coordination controls. Real-time tracking of autonomous vehicles, ...
Abstract: In order to enable the use of semi-automatic and automatic operations for production on building sites, operations must be planned in advance and controlled on the basis of the planning. In a current research project funded by the Federal Republic of Germany, a method is being developed, which supports the computer-aided ...
Abstract: Double-front construction machinery, which has been designed for adaptation to complicated work, demands higher operational skills to control two manipulators with more multiple joints. To handle more complicated machinery skillfully, intelligent systems that can autonomously identify the current work states and also provide cognitive and operational supports to their operators ...
Abstract: Civil engineering construction work has always been accompanied by a high proportion of tasks that are either dangerous or unpleasant or both. Enhancing the general working environment and boosting safety levels are critical issues for the industry. Meanwhile, the industry has been slow to embrace IT, and there is substantial ...
Abstract: In this paper an automatic control system for a multipurpose road pavement repairing machine (ROADMOTO) is introduced. ROADMOTO machine is equipped with asphalt milling drum and two asphalt spreaders. The old wearing course of the road is heated and milled. Asphalt spreader in the middle of the machine is used ...
Abstract: In this paper, we test whether an autonomous robot can be used to measure the International Roughness Index (IRI), a description of pavement ride quality in terms of its longitudinal profile. A ready-made robot, the Pioneer P3-AT, was equipped with odometers, a laptop computer, CCD laser, and a SICK laser ...
Abstract: The research goal has been synchronizing the process of asphalt production, asphalt transportation and pavement laying by connecting different machines together using wireless technologies. Sensors and GPS positioning units were installed to the machines for measuring process variables (e.g. mass temperature) and detecting events (e.g. loading, unloading). The first prototype ...
Abstract: Automation in construction is considered as one of solutions to fundamental problems which the construction industry has confronted. The development of real-time 3D local terrain modeling is the core methodology of achievement of IES (Intelligent Excavating System) which is a mega-size research concerning automation in construction. Stereo vision technique was ...
Abstract: Automated recognition and modeling of 3D objects located in a construction work environment that are difficult to characterize or are constantly changing is critical for autonomous heavy equipment operation. Such automation allows for accurate, efficient, and autonomous operation of heavy equipment in a broad range of construction tasks by providing ...
Abstract: Autonomous loading implies a fully automated scenario in which automated excavating machines, such as front-loaders, load themselves from a heap of bulk material and deliver to the dumping site. The process comprises all the functions of loading, navigating, obstacle detection and avoidance and unloading to be automated and controlled by ...
Abstract: The numbers of reported accidents related to cranes are increasing during the past 10 years. Although simulation and visualization software are available for path planning of cranes, the high dynamic characteristics of on-site conditions often require re-planning the cranes path to ensure safety and efficiency. Any unpredicted objects on site ...
Abstract: Materials tracking is a key element in a construction materials management system. Deploying a costeffective, scalable, and easy to implement materials location sensing system in real world construction sites has very recently become technically and economically feasible. The evident drawback of the current costeffective and scalable systems is lack of ...
Abstract: In this paper a new process integrating 5D product modelling and 3D on-site surveying for bridge construction is presented. This enables faster and less error prone surveying session preparations, fluent communication of design plans between survey teams, design office and other parties related to the construction project. A prototype system ...
Abstract: Knowledge community of practice (CoP) is a popular approach for knowledge management implementation in construction organizations including contractors and A/E firms. In order to evaluate and improve the performance of the knowledge CoPs, quantification methods for performance measurement were proposed in previous researches. Profound implications may be inferred from the ...
Abstract: In recent years, three-dimensional visualization technologies have been researched and applied for aiding the operations of design, planning, construction, etc. in construction engineering. A three-dimensional (3D) CAD model of a targeted facility or construction project is a requirement. Due to the uniqueness and custom features of construction products, their 3D ...
Abstract: The maintenance and management of facilities is an emerging issue. Decisions on maintenance-related works usually are made based on various types of accumulated historical data, such as design drawings, inspection records, sensing data, etc. There are systems for storing and maintaining such maintenance-related data electronically in database. However, the data ...
Abstract: The use of 4D management tool in construction industry has been growing rapidly in recent years in response to soaring demands on efficient construction management. Successful implementation of this tool in an engineering firm for use in real projects is still challenging. This paper shares the experience on implementing an ...
Abstract: It is essential to perform an effective construction supply chain management in large-scale building construction projects. Since 2006, this research consortium has conducted a research project, named Next generation Intelligent Construction Supply chain management (NICS), that develops a process and a system that support an proactive construction supply chain management ...
Abstract: Recently Building Information Modeling (BIM) has been widely used to manage building information throughout the project life-cycle more effectively and efficiently. Particularly in quantity take-off and estimation, BIM-based process is getting more and more attention, and even BIM-based quantity take-off at the most detailed level has been performed in several ...
Abstract: Even though the fundamental importance of construction components in any given project, industry practices still solely rely on the human ability to individually control thousands of these components on the field. This lack of automation frequently results in critical errors that negatively affect project cost and schedule. Recently, though, the ...
Abstract: Conceptual cost estimates are important to project feasibility studies, even the final project success. The estimates provide significant information for project evaluations, engineering designs, cost budgeting and cost management. This study proposes an artificial intelligence approach, the evolutionary fuzzy hybrid neural network (EFHNN), to improve precision of conceptual cost estimates. ...
Abstract: Most of the current techniques for automating progress data collection promise to eliminate laborintensive tasks associated with manual data collection. A drawback is the necessity to add additional steps to be performed before, during, or after utilization of such technologies. Working with such featureless data and without having semantic information ...
Abstract: Improvement of existing highway systems, such as maintenance, rehabilitation, and reconstruction, is accompanied with lane closure at work zones. Such lane closure causes road user costs for traffic congestion and delays at the work zones. A robust method is developed in this research to support strategic decisionmaking on lane closures. ...
Abstract: This paper is part of an effort to develop measurement systems and methods to better predict the performance of wireless sensor and control networks in building applications. Because of the variability in application requirements, the development of measurement methods to assess the performance of wireless sensor networks in buildings is ...
Abstract: The intended objective of ISP is to develop a comprehensive plan for integrated systems development. Thus, Information Strategy Planning (ISP) is the first step in order for general contractors in the construction industry to introduce Information technology (IT) to their business and project management. Due to a lack of understanding ...
Abstract: Technology acceptance is a challenge that can be addressed properly if decision makers of technology acceptance are aware of all issues that need to be addressed. Borrowing theory of basic ecology, researchers propose an information technology (IT) ecosystem (IECOS) and identified in the entirety all the elements present at IECOS. The study ...
Abstract: Intelligent Building and construction automation in one form or another have been in existence for decades. Open source communication protocol standards such as BACnet have been instrumental in the profilation of intelligent building technologies while yielding many benefits.
Abstract: Building automation has become increasingly common and advanced in the past two decades. There is also a trend toward design of large and significant buildings such as highrise buildings with unusual configurations. In this Keynote Lecture it is argued that the next big step in building automation will be development ...
Abstract: The purpose of the work presented here is to automate productivity measurement so that productivity information will be available on a daily basis, its quality and integrity will be improved and the cost of generating it will be reduced. To do this, the Technion APPC research group started exploring the ...
Abstract: The Ignalina Nuclear Power Plant (NPP) consists of two units, commissioned in 1983 and 1987. Unit 1 of Ignalina NPP was shutdown for decommissioning at the end of 2004 and Unit 2 is to be operated until the end of 2009. Both units are equipped with channel-type graphite-moderated boiling water ...
Abstract: Currently, construction and real estate are characterized by the intensive creation and use of information and communication technology. The authors of this paper in cooperation with other specialists developed the Construction Technology Platform of the Republic of Lithuania. Information and Communication Technology in Construction is one part of the Platform; ...
Abstract: This paper describes the examples of practical applications of CAN-bus system in close control loop system of the equipment for the heavy machines. The document covers three topics. The first one is using CAN-bus in control systems, its pros (small cable harness, easier servicing, etc.) and cons (such as asynchronous ...
Abstract: Life cycle information integration is a significant to construction projects. Radio frequency identification (RFID) technology is highly potential for integrating the information over the construction life cycle. Saving information with RFID tags, essential information can be saved and updated along different phases of the construction life cycle. Moreover, Open-Building (OB) ...
Abstract: Progress monitoring, a critical tool for successful construction projects, provides information on the present state of construction, which can then be compared with the original plan. The comparison can be used in decision-making to control variations in project performance. However, current methods for acquiring and updating information on the progress ...
Abstract: In order to increase the efficiency of employees activities, a Web-based Biometric Mouse Decision Support System for Users Emotional and Labour Productivity Analysis (MDSS-UELPA) was developed by the authors. MDSS-UELPA consists of seven subsystems: Data Capture and Collection Subsystem, Feature Extraction Subsystem, Database Management Subsystem, Model-base Management Subsystem, Equipment Subsystem, ...
Abstract: The need for Light Rail Transit (LRT) in Korea has substantially increased as a result of the heavy traffic congestion in large cities such as Seoul. In Korea, most of the LRT construction projects have been achieved with the help of private sector investment, and the private sector companies that ...
Abstract: Construction logistics plays an important role to complete construction projects successfully. It is necessary to monitor incoming and outgoing resources by time phase. And it is very significant to notify immediately where the incoming material or equipment should go at especially large construction site according to site advantages of RFID, ...
Abstract: The development of "slab track" was started by Japan in 1955 and the "Committee of slab track research" was established in 1971 for exclusive development of slab track. This makes Japan the country that has invested the most effort into slab tracks. On 5th January 2007, the THSR transferred from ...
Abstract: In the dismantling works of office interiors for renewal, a robotic system is needed in order to assist the human workers engaged in this kind of job. Regarding to the items in the ceiling side, after a dismantling task of the ceiling boards, it is necessary to remove the screws ...
Abstract: Applications for 3D imaging systems (e.g., laser scanners) have increased significantly in the past decade. Data from such systems often require registration. Spheres are often used for registration because they look the same from each direction and provide well defined reference points: fitted sphere centers. Common practice is to first ...
Abstract: The construction is probably one of the oldest industries that exist nowadays. The processes and techniques used today are basically the same since ancient times. The main difference is the level of mechanization used in the tasks execution and materials used. What seems obvious is the fact that building industry ...
Abstract: The dismantling processes are very dangerous and there have been many studies for utilizing a remote control system to increase operators safety. This paper deals with the remote control problem by developing a novel haptic device to control an excavator equipped with the crusher which is one of the most ...
Abstract: Recognition of free-form objects located in environments that are difficult to characterize or are constantly changing is critical in providing interactive background information for construction worksite modeling. It also allows for accurate, efficient, and autonomous operation of heavy equipment in a broad range of construction tasks. This paper presents a ...
Abstract: Detecting obstacles and creating a map of surroundings are essential problems for navigation system of unmanned vehicles. Perception systems for autonomous navigation of unmanned ground vehicles (UGVs) must detect all manner of potential navigation hazards. Until quite recently, UGV perception research had focused largely on perception of 3-D terrain geometry ...
Abstract: The importance of unmanned vehicles is directly related to the applications to which it can be successfully applied. This paper will highlight applications, missions, and capabilities that have been demonstrated on the Lewiatan platform to date as well as future application and mission considerations. This platform is equipped with remote ...
Abstract: The Architectural/Engineering/Construction (AEC) industry is slowly shifting toward performance-driven project and project delivery. Assuring good performance requires efficient performance control processes. Among the different construction performance control processes, many critical ones, including progress tracking, productivity tracking and dimensional quality control, rely on efficient three-dimensional (3D) information flows. However, the AEC ...
Abstract: There have been many efforts in automatic object recognition using computing technologies. Especially, in the development of automated construction equipment, automatic object recognition is very important issue for the proper equipment maneuvering. 3D imaging system was used, which employs the TOF (time-of-flight) of a laser to measure the distances of ...
Abstract: The authors discussed on the development of a safety management support system to prevent construction site accidents using working area information. The past disasters on heavy equipment were evaluated to clarify the causes of the accidents, and the functions for support system to prevent collision were defined. The design of ...
Abstract: This paper reports the results of preliminary experiments concerning position tracking of workers in construction sites. The experiments are part of an ongoing research concerning the development of a new generation of advanced construction management systems allowing real-time monitoring and coordination of tasks, automatic health and safety management, on-site delivery ...
Abstract: Monitoring of special structures is more and more widely spread to estimate their state while in use. The forecast reliability is conditioned by a quality of the observation program, equipment and apparatuses, by means of processing and analysis of the observation results. For this purpose there was established a Site ...
Abstract: In day of Internet and mobile phones of wireless broadcast of data, GPS tools to collecting and transmitting of information, in real time one should to create tools, which will assemble this information and will be capable to aid technological decision in constriction industry. Building and first of all ...
Abstract: The casualties due to slope failures such as landslide, rock fall, debris flow etc. are about 24% in total casualties caused by natural disasters for the last 10 years in Korea. And these slope failures in Korea are focused in the season in which typhoon and torrential rain take place. ...
Abstract: Tunnel accident is apt to become a serious disaster when it occurs. But tunnel construction is being increased rapidly in Korea because tunnel has advantages and usefulness. According to Korean Ministry of Land, Transport and Maritime Affairs, total length of road tunnels was extended from 150 km to 648 km ...
Abstract: Results of analysis of recent accidents in public buildings are presented. It is shown that construction state identification systems are integral part of public and local warning and security systems. Structure of construction of state identification system is proposed and analysed. It is established that in order to ensure wide ...
Abstract: Pre-planning stage is a most important stage to determine the success of the project throughout the construction lifecycle. Therefore, all information generated from the pre-planning stage must be processed and retained in the format which all he project participants can share. Furthermore, using object-oriented attributes and meta-data in BIM ...
Abstract: Roads in Korea have been extended drastically in their lengths with high demand for highway construction caused by the economic upsurge in the early 1970s and they are playing a significant role as a key facility to support sustainable economic growth ever since. Importance of roads is growing even more ...
Abstract: Infrastructural projects under a Design, Build, Finance and Maintenance contract (DBFM) need a different approach for information management. This paper gives an insight of Dutch initiatives in the HSL ZUID project (High speed rail track from Amsterdam to Antwerp). This contract is awarded is 2001 and delivered as a DBFM contract ...
Abstract: LitPOS the state network of permanent reference GNSS stations is operational from July 2007. It provides data both for the real-time and post-processing applications. LitPOS stations cover the all territory of Lithuania. Total number of GNSS stations is 25 therefore the integration of some stations of neighbouring countries ...
Abstract: This paper describes a new framework and its algorithms of using frequent positioning data to entitle rapid learning among construction site managers and workers for safety. If collected accurately and in real-time, the location, speed, and trajectory of construction resources (e.g., workers, equipment, materials) can lead to important information regarding ...
Abstract: In project development it is hardly possible to get exhaustive and accurate information. As a result, the situations occur, the consequences of which can be very damaging to the project. Inaccurate evaluation of the strategy related to capital investment and project implementation is one of the reasons why such estimates ...
Abstract: Lessons-learned file (LLF) is commonly adopted to retain previous knowledge and experiences for future use in many construction organizations. Current practice in capturing LLF is mainly through the costly and time-consuming manual processes conducted by the construction engineers or managers. Moreover, many construction knowledge accumulated from previous projects is berried ...
Abstract: This paper describes the Web-based Biometric Mouse Intelligent (WBMI) System developed by the authors for measuring and analysis of users emotions and labour productivity with a biometric mouse. The research included development of the WBMI System, which works in the background and is able to assess users emotional state and ...
Abstract: Effective and rapid finding a way out in emergency is always a problem for occupants who get trapped in indoor environment such as inside buildings or vessels. In such a case, rescuers often rely on emergency signs or verbal communication to direct trapped people to the exits. However, many problems ...
Abstract: This paper proposes a new algorithm using Simulated Annealing (SA) for stochastic scheduling. Stochastic effects are added with nondeterministic activity durations. Simple simulated annealing can not properly handle such a complex problem so an improved version is produced and utilized within the algorithm. Generally, the availability of resources is not ...
Abstract: The purpose of construction management is to successfully accomplish projects, which requires a continuous monitoring and control procedure. To dynamically predict project success, this research proposes an Evolutionary Support Vector Machine Inference Model (ESIM). ESIM is developed based on a hybrid approach that fuses support vector machine (SVM) and fast ...
Abstract: It is very often the case that the units responsible for the maintenance of the building have to repair industrial flooring. The large number of available materials and technologies as well as some other factors, make it necessary to use tools which would help to make good decisions. Hybrid advisory ...
Abstract: Nowdays construction sector SMEs lack of e-business solutions. Paper reflects finding of e-NVISION project evaluating SMEs need for external services and providing decription of proposed Company/Supplier Information Retrieval Service, Supplier/Company Discovery Service, Tender Configurator, Procurement Configurator, Service for the Location of Services, Service Registry, Connector to EU Public Tender Service ...
Abstract: Recently, as the scale, structure, capacity and use of buildings are more complicated in construction projects, it is more difficult to estimation projects costs. Because its projects scale is much bigger than any other projects one and total project cost is concluded after project is finished, it is important to ...
Abstract: With the advancement of information technology, various public building maintenance and management systems, such as BMS, HMS, FMC, and KOROMBUS, have been developed. The developed systems enhance safety on highway facilities and efficiency of highway facility maintenance process. At the same time, the importance of exchanging and sharing highway facility ...
Abstract: The paper presents a review of problems of usefulness of IT solutions on offer in construction sector. Universal development trends in IT are compared with conditions and capabilities of construction market in Poland. Shortcomings of proposed IT solutions for construction industry, as well as conditions for IT implementation are presented. ...
Abstract: The quality of early cost estimates is critical to the feasibility analysis and budget allocation decisions for public capital projects. Various research have been attempted to develop cost prediction models in the early stage of a construction lifecycle. However, existing studies are limited on its applicability to actual projects because ...
Abstract: The paper presents the research aimed to find the way for efficient monitoring and control of subcontractor performance in large construction projects. As a result the procedure for recording and processing the nonconformities is proposed. Procedure consists of the following stages: the identification of nonconformity (defect, work performed is at ...
Abstract: A model for comparing the inventory costs of purchasing under the economic order quantity (EOQ) system and the just-intime (JIT) order purchasing system in existing literature concluded that JIT purchasing was virtually always the preferable inventory ordering system especially at high level of annual demand. By expanding the classical EOQ ...
Abstract: While constructing projects schedule three criteria must be considered: time, cost, and scope. Additionally risk related to all that criteria also has to be taken into account. Thus, project planning problem can be defined as a multiple-criteria decision problem under risk. In the paper a project scheduling problem is analyzed. ...
Abstract: Information processing is critical to the successful development and execution of a construction project plan. Currently, Building Information Modeling (BIM) has been widely used in representing the physical and functional characteristics of design and construction. However, in order to use BIM effectively in construction project planning, more construction knowledge should ...
Abstract: Benchmarking philosophy was applied to construction management process reengineering so that process managers can reengineer processes by learning the best-practice companys process. For this purpose, this paper addressed the process adaptability evaluation method to assist managers determining the best-to-learn process from the best-practice companies. By using the proposed method, the ...
Abstract: In this paper we discuss about production scheduling. In manufacturing industry, efficient methods to solve resource constrained scheduling problems are needed. The aim is to find such schedule, which would meet the requirements of job priority relations, resource constraints, minimizing it by some criteria. In many cases this criterion is ...
Abstract: This paper presents a work-item-based scheduling system that employs MD CAD model, Object Sequencing Matrix (OSM), and Genetic Algorithms (GAs) to generate the time-cost integrated schedule for construction projects. Consisting of MD CAD objects, the MD CAD model ensures the consistency and efficiency of information processing and integration in project ...
Abstract: There are quite many researches dedicated to application of Internet based decision support systems for solution of various tasks of construction process, but there is a lack of feasibility studies and practical application to solve legislative tasks. In order to assess dispute resolution methods of economically, socially and/or from other ...
Abstract: As the backbone of national transportation, sharing more than 90% of all domestic transportation, roads in Korea have been extended drastically in their lengths since highway construction was triggered in the early 1970s. Among various road components, pavement has a direct impact on the ride comfort of road users. As ...
Abstract: This paper deals with one of methods for estimating the probability distribution of the project completion time in stochastic PERT network. This method combines Monte Carlo simulation with exact analysis. The exact probability distribution for a subnet is used to improve an estimator of probability distribution for larger networks. In ...
Abstract: Preparation of an agreement has a great influence on economic success of both parties and on their behaviour in order to increase their profits and to protect themselves against possible loss. It is important to use technological innovations in construction contracting. Even when the construction contractor is selected and the ...
Abstract: The disturbances of processes in progress are in construction production engineering basic problem making difficult planning both under in relation to time, as and costs. The conception of introduction of flexibility came into result of observation of problems alongside realization of runways, the roads of circling, customs terminals, driveway as ...
Abstract: With the growth of information technologies in the field of construction industry over the last years, numerical building information modeling and process simulation has evolved to a fully accepted and widely used tool for project life circle management. A growing diversity between disciplines, participants, tasks, tools and events while project ...
Abstract: Digital automatic levels are a precise instruments used for precise leveling. Operation of digital levels is based on the digital processing of video indications of a coded staff. At the beginning of measurement a visual pointing of the instrument into the surface of leveling meter is performed. After that the ...
Abstract: The paper discusses designing, modeling and application of electric drives with linear induction motors for constructional purposes: high voltage line fault localizing and shunting system of power supply for site, application of thyristors to shunt phase fault, horizontal transport systems with linear electric drives of constructional equipment for transportation of ...
Abstract: Appropriate selection of a formwork system is a crucial factor in successfully completing any high-rise building construction project. However, in practice, the selection of an appropriate formwork system has depended mainly on the intuitive and subjective opinion of practitioners with restricted experience. Therefore, in this study, a decision support model ...
Abstract: Multi-attribute methods in road construction can be used on the national, organization and project levels. However, most of assessment methods are seeking to find how to make the most economic construction decisions, and most of all these decisions are intended only for economic objectives. Computerised Asphalt Mixing Plants (AMP) are ...
Abstract: This article deals with a new method of forecasting standard work time for specialized worker flows. The methodology of this article is based on the use of information technologies and linear regression analysis. The main advantage of this method is that it allows the user to establish standard work time ...
Abstract: The risk of investment in a construction objects is an important decision leading to the project success. The decisionmaking process, based on the established risk assessment principles expressed in linguistic terms, requires qualitative judgement and experiential knowledge of the construction experts. Presented structured and realistic model deals systematically with different ...
Abstract: It is long recognized by the industry practitioners that how well preproject planning is conducted has great impact on project outcome. Through industry project data collection and model analysis, this research intends to investigate the relationship between preproject planning and project success. In early stage of the project life cycle, ...
Abstract: This research using the Monte Carlo Method needle to the disaster to cause disaster damages in the discussion community to guard against the disaster relief plan and the disaster reciprocity, provides recognizes the community dangerous region the spatial distribution. The research to the community guards against the disaster relief spatial ...
Abstract: The popular models developed under of queueing theory describe how systems function within an infinitely long time interval. Yet, a real work is executed within the limited time intervals of work-shifts. The study was performed on the basis of one example involving excavations made by one excavator and the transportation ...
Abstract: A lot of complicated optimisation tasks are solved with the help of computer technologies in the information age. It is necessary to solve the task of a multi-criteria selection and optimisation in order to reach the optimal selection and intercoordination of the elements of Intelligent Ambient Assisted Built-up Living (in ...
Abstract: Multi-criteria decision making is used in many areas of human activities. Criteria can to be qualitative and quantitative. They usually have different units of measurement and different optimization direction. The normalization aims at obtaining comparable scales of criteria values. In the new program LEVI 4.0 version the following normalization methods ...
Abstract: The choice among alternative automatic equipment used to protect the construction site against major accidents is considered. Methods of multi-attribute selection are suggested to implement the choice. This includes attributes accounting for the possibility of failure of the automatic equipment (safety-related attributes). The epistemic uncertainty in the safetyrelated attributes is ...
Abstract: It has been recognized that a system that facilitates efficient communication and interaction is critical in order to improve coordination between AEC project participants. Various research literatures show that migration of conventional AEC work processes, which have relied heavily on two-dimensional drawings, to more convergent processes that share a single ...
Abstract: Information about the factors that lead to the deterioration of bridges is essential for bridge maintenance. Pinpointing what these factors are will certainly enhance the effectiveness of bridge management. However, a review of the literature reveals that such deterioration factors are usually determined from expert opinion. In other words, there ...
Abstract: Uncertainty and risk are close related both as threats associated with indefinite source and consequences during the implementation of construction projects. The article deals with through analysis of possibilities to reduce uncertainty solving technological and economical problems. The methodology is presented as step by step tool for risk and uncertainty ...
Abstract: "Points On Construction (POC)" is a site network tracking system based on a platform system of collaborative intelligent construction management that has two holds. One is a back office management system in maintenance and service applications for construction machinery. Another is a comprehensive, web-enabled management system to support day-to-day construction ...
Abstract: Urban renewal projects have been increasingly undertaken in many nations to cover diverse functions through rehabilitating complex spaces vertically and horizontally. Urban renewal projects usually require a great amount of resources and interrelationships which inherently involves various participants and stakeholders from both public and private sectors. Hence, urban renewal projects need to be ...
Abstract: The main task of the energy sector of today is reliable generation of safe, ecologically clean, effective and economically perspective energy. This objective may be implemented by forming the energy sector management policy, by changing and defining management and operational costs, and by assessing the impact of energy infrastructure on ecology. Therefore, the ...
Abstract: In recent years of Taiwan, the city turns a phenomenon development quickly, causing the city population increase suddenly. The usage of various vehicle and machine equipment increases increasingly, making the situation quality of the city noise pollution turn worse increasingly. Be located the campus in the city and it closes to community ...
Abstract: This research examines dynamics associated with new representational technologies in complex organizations through a study of the use of a Single Model Environment, prototyping and simulation tools in the mega-project to construct Terminal 5 at Heathrow Airport, London. The ambition of the client, BAA, was to change industrial practices reducing project costs and ...
Abstract: Globalisation, constantly increasing amounts of information, rapid change of society, segmentationthese are the challenges which boost the importance of social and cultural role of education considerably. The society is able to react to these challenges only when the education system is modern, flexible and open to constant change and new ideas. The response ...
Abstract: In recent years, automation and robots have been applied at different domains to coordinate collaborative behavior in distributed systems and providing a powerful basis for proactive applications of complex nature, specially in large scale disasters requiring complex tasks to be performed by groups under extreme time and resource constraints. Sri Lanka is ...
Abstract: With the use of modern information and communication technologies the distance education in construction has become easier and effective than ever before. However, the focus of the most of the construction distance education systems in place today is the need of students who are geographically prevented from attending the programmes hosted by ...
Abstract: The construction industry of Estonia has experienced a period of economic growth which has started to turn down for now and the output forecasts state that this recess will continue. While the availability of unskilled workforce will be growing, the lack of high quality skills in the labour market is becoming even ...
Abstract: Integrated Practice is a large issue being discussed by architects and construction managers today. Changing the relationship between the activities of design, construction and facilities management. And at the center of that discussion is this idea of Building Information Modeling.
Abstract: Infrastructure construction is typically of large financial scale and is less structured than building construction projects. Hence, real-time control of on-site infrastructure construction, based on high quality data, is essential to identify discrepancies between actual and planned performances.
Abstract: This paper presents research that is evaluating the capability of an automated location-based methodology in identifying and retrieving contextual project information on indoor and outdoor construction sites for supporting decision-making tasks of site personnel. Under this methodology, construction entities visible in a user’s field of view at any given time ...
Abstract: The advent of the Global Positioning System (GPS) provided reliable and accurate position information worldwide for outdoor environment. However, many applications are emerging where position information is required and the environment or complexity considerations prohibit the use of GPS. As a result, areas as diverse as robotics, sensor networks, and ...
Abstract: Monitoring construction site activities is a critical concern to most stakeholders (owners, contractors, architects, engineers, suppliers, etc.) in a construction project. Successful projects are often determined by the level of awareness of project status or work task performance. Thus, information has inherent value for real-time or near real-time decision making. ...
Abstract: The goal of the project is to survey the applicability of machine automation and wireless communication technologies in road repairing and surfacing. The focus is on the control of the worksite and road repairing and road surfacing process. This process contains design, construction, quality control and work site management. The ...
Abstract: By applying the Radio Frequency Identification (RFID) technology, this study embedded the RFID tags in the components of open-buildings to store the raw design data so that data can be passed to the maintenance phase and automatically provided to the building users. For this purpose, this paper focused on the ...
Abstract: Automated project monitoring system has the potential to be effective in controlling project performance through continuous monitoring and control of the project in real time using Automated Data Collection tools. This paper presents a system that is designed to investigate the use of RFID for automated schedule and inventory ...
Abstract: The authors have developed a construction logistics system using a radio frequency identification technology for finely controlling several construction sites in order to improve the transportation and handling of construction materials. This system was experimentally applied to some small construction sites in the Tokyo metropolitan area for a few months ...
Abstract: It is necessary to manage materials (including prefabricated components) and identify their data communication process by collecting relevant information in real time for effective and efficient material management in construction projects. Recently, there have been many studies and developments using various wireless technologies including Radio Frequency Identification (RFID) for acquiring ...
Abstract: Since Taiwan is a crowded island, serious disaster will cause personnel casualty and property damage. When calamity happens, how to effectively deal with the emergency is a significant task for the Fire Con-trol Department. Currently the standard operation procedure for fire rescue is: (a) receives building fire report, (b) inquires ...
Abstract: The use of high frame-rate 3D imaging systems for construction equipment control is part of a broader research effort at the National Institute of Standards and Technology investigating innovative technologies for automated construction, performance and evaluation of 3D imaging systems, and construction object recognition and tracking. A probabilistic measurement model ...
Abstract: In 2006, the ASTM E57 committee was established to develop standards for 3D imaging systems. A 3D imaging system is a non-contact instrument that is used to measure the range and bearing to and/or the 3D coordinates of points on an object or within a region of interest. ...
Abstract: In this paper, the authors discussed the overview of a method for estimating the 3-D coordinated data for development of a project control system with stereo camera images. The information for control project with location information in the 3-dimensional space of time series from images is proposed. SFM (Structure From ...
Abstract: Modeling 3D point cloud images scanned with the LADAR (LAser Distance And Ranging) is a time consuming process that lacks the capability of capturing material type, texture, and color of scanned objects. To extract information from construction sites and update quantities of work completed as well as mapping as-built information ...
Abstract: This paper describes a technique for autonomously exploring a complex steel bridge environment using a 6DOF anthropomorphic robotic arm, instrumented with a laser range scanner. Potential knowledge gained from a 3D range scan at an end-effector position and orientation (pose) is estimated, then arm configurations which avoid obstacles and unknown ...
Abstract: During the past several years, there has been an increasing interest in deploying mobile robots to inspect building structures. Augmented Reality (AR), which can impose digital information into the real working space, has been proved to be effective in providing most relevant information in an intuitive manner. Combining the strength ...
Abstract: Human resources are continuously gaining importance in association with construction site management. With increasing interest being shown in the use of state-of-the-art technologies such as radio frequency identification (RFID) in site management, we developed a device based on infrared radiation and ultrasonic sensors for application in the management of human ...
Abstract: The paper describes time-optimal control of construction transport systems with suspended loads, for example gantry type robots. Permissible oscillations of the loads are restricted because of safety requirements while transporting, especially at the end point. A mathematical model of such systems is presented as a pendulum attached by a ...
Abstract: The paper focuses on the establishment of optimized bucket path planning using numerical solution method, for a force-reflecting backhoe which is affected by excavation environment including potential obstacles. The developed path planning method can be used for precise bucket control and more importantly for obstacle avoidance which is directly related ...
Abstract: Since the processes of dismantling are very dangerous, there have been many studies to develop remote operating devices using joystick. In this paper, in order to improve the operability of the dismantling equipment that is usually an excavator, a novel concept of tele-operated haptic device is proposed. Operators who use ...
Abstract: Operating cranes in a construction project should meet several requirements of capacity, safety and spatial constraints. Much research has been done about selecting cranes, simulating the work processes, training operators and optimizing working paths to improve the efficiency and reduce conflicts in real construction operations. However, most of the research ...
Abstract: Robots are only incidentally used to assemble wall panels in high-rise buildings, even though robotic technology is available for various applications. These applications can improve construction site safety and increase the productivity of the assembly process. A research project initiated at Eindhoven University of Technology (TU/e) in the Netherlands aims ...
Abstract: Building materials and components are much larger and heavier than many industrial materials. Ceiling glass is a type of building material for interior finishing. The demand for larger ceiling glass has increased along with the number of high-rise buildings and an increased interest in interior design. The objective of the ...
Abstract: This paper presents the ongoing research into the design and development of a general-purpose autonomous robot. The major components of the robot are four ultrasonic sensors, one electronic compass, three microprocessors, a laptop computer, and three motors for three wheels. Software architecture was developed to process the information obtained from ...
Abstract: Planning for construction projects faces challenges due to complexity in design and short deadlines. Further, very limited tools are available to planners for integrating the visual representations of site with the progress of time, which results into their relying on experience and imagination to decide the appropriate sequence of construction ...
Abstract: Already, authors provided the method (activity checking method) which does planning validity checking whether the execution of the activity will be possible or not used work data and component data, and construction progress checking used completed wok data. Assist functions of this method are used for construction from planning to ...
Abstract: Knowledge management (KM), through learning from past projects, has been considered as an effective means for continuous improvement. However, many KM initiatives have failed to meet this expectation, due to the top-down, controlled approach and an ineffective transferring mechanism. To address this challenging issue, this paper proposes a project-based KM system ...
Abstract: The Internet has revolutionized the way software systems work. Many applications, such as online games and instant messengers, have utilized web-related technologies to cooperate over the Internet. Recently, some researchers have utilized web-related technologies in Computer–Aided Design to allow real-time collaboration between users over the web. All these systems are ...
Abstract: Earthquake problems are not new to our country. We have witnessed several moderate earthquakes in last 2 decades causing innumerable property loss and life loss. In order to minimize the losses, we need to raise the awareness about earthquake resistant design of structures. This can be achieved by spreading the ...
Abstract: With a recent surge in robotics research, the need to develop a platform for robots and human beings to interact and co-exist has become imperative. Though advances in Internet technologies have enabled devices including robots to be plugged onto the network, a lot of hurdles still remain. In this paper ...
Abstract: Communication via mobile phones is becoming increasingly common among humans but next in the pipeline is communication between human and robots. This project promotes wireless connectivity which makes it hassle free affair. In this paper we propose the concept of controlling a robot by a mobile phone from a remote ...
Abstract: Disk schedulers in current operating systems schedule a request as soon as the previous request has been completed. In many common applications disk read requests are issued synchronously with short period between them In this case, the scheduler switches to a request from another process with the assumption that the ...
Abstract: Traditional research in construction safety focused on accident data analysis, identification of root cause factors and safety climate modeling. These research efforts did not study the dynamic repetitive interaction among multiple root cause factors. Recently safety research focuses on developing accident causation models. These models attempt to explain how the ...
Abstract: This paper introduces a novel approach to enhance the general practice of layout planning of construction sites for producing the efficient utilization. In this work, a solution to the problem is attempted for unequal and irregular temporary facility using robust search and optimization capabilities of Ant Colony Optimization (ACO) ...
Abstract: Pipelines are the most efficient, cost effective and environmentally friendly means of fluid transport [1]. When selecting the route of a cross country pipeline, the goal is to route it so that it has the greatest utility to the public while minimizing negative impacts to people and the natural environment. ...
Abstract: While striving to satisfy owners’ needs, to minimize construction cost and pursue the maximum profits under a fixed contract amount and duration is always one of the most important objectives of contractors. Only a sound work plan, which includes optimal working sequences and perfect timing for executing each individual ...
Abstract: The efficacy of managing a construction project mainly depends on proper planning and scheduling. Mass housing projects are highly repetitive in nature, as the methods used for construction are often repetitive or cyclic. Resources are therefore being deployed repeatedly for the similar or identical tasks in these projects. In order ...
Abstract: This paper integrates multi-project scheduling and linear scheduling concepts. Since the problem is combinatorial, a two-stage heuristic solution-finding procedure is used to model the problem with multiple resource constraints. Simulated annealing is utilized as a searching engine in the second stage to find the probable optimized solution. The first stage ...
Abstract: The fast-tracking delivery method has received considerable attention over the last decade because of its time saving feature depending on overlapping of phases of a project. However, to implement the fast-tracking construction, not only the overlapping relationship between design and construction phases, but also the estimating the reduction of the ...
Abstract: DSM (Design/Dependency Structure Matrix) is a potential tool for planning iterations and also for evaluating alternate sequences. The standard DSM operations can determine the basic sequence and can identify the existence of cycles/loops. These cycles/loops are grouped as blocks. There can be many strategies for executing the ...
Abstract: Although slightly improving the control of the design schedule may greatly reduce the total duration of the project, but little effort has been made to control the schedule of the design project. Scheduling design activities is complicated chiefly because the design activities often have different degrees of information dependencies between ...
Abstract: Sewer pipelines are buried underground and often forgotten until serious failure happens. Effective and reliable sewer system management is very important for the safe and clean environment. In order to maintain the intended capacity of pipes, effective maintenance based on accurate condition assessment is required. This research suggests a new ...
Abstract: Intelligent systems (neural networks, expert, knowledge, decision support and other systems) in construction can be used on the national, organization and project levels. However, most of all neural networks, knowledge, decision support and expert systems are seeking to find how to make the most economic construction decisions, and most of ...
Abstract: This paper will address a new approach to construction management: Qualitative Construction Site Assessment System (QCSAS). QCSAS is essentially a site management software package. The objective of this system is three fold. Firstly, it aims to provide a holistic view of construction site to the project manager. It tries to ...
Abstract: The systematic aggregation of information is crucial in decision making. If the information is derived from various sources, then the information fusion problem can be transformed into a multi-criteria decision making model. The information fusion problem, thus, is reduced to (a) determining the structure of the hierarchy to ...
Abstract: Construction is an experience-based discipline, knowledge or experience accumulated from previous projects plays very important role in successful performance of new works. More and more construction organizations have adopted commercial Knowledge Management Systems (KMSs) for developing their own Knowledge Management (KM) functionalities. The existing KMS’s are mostly developed based on ...
Abstract: Automation and Information Systems (IS) implementation in the construction industry have evolved in scope and scale of effects over the years. With their growing importance, there is a need for a more practical IS planning approach. Along with the alignment of Information Technology Strategy with the overall corporate strategy of ...
Abstract: Design build (DB) is a construction project delivery system which has become one of the favored ones and the growth of DB by the public agencies has been steadily increasing. DB can be viewed as an evolutionary project delivery system, since DB project team members collaborate on work with each ...
Abstract: Many companies have managed their business performance in order to achieve their enterprise purpose. Performance management which applied concept of BSC (Balanced Scorecard) is widely used all over the world. In the construction industry, BSC-based performance management is currently introduced with needs of balanced performance evaluation. However, most companies actually ...
Abstract: Aesthetics is not ‘something out of this world’ that happens in ‘Parises’ and ‘New Yorks’ and ‘Bombays’ and at exorbitant prices.” (Vinoo Kaley, cp. “Build your House”). The current work tries to improve, to embellish and to simplify life for slum dwellers by creating a module system for their housing ...
Abstract: Although the Japanese industrial robot companies are proud of their number and sales of commercial industrial robots, the advanced research and developments are to look at the future robotics used in new applications. The term Robot Technology (RT) suggests rather broad meaning not limited to the conventional robot arm and its applications. It ...
Abstract: The future points to the application of IT to the construction robot for the overall processes of civil engineering work from the planning and design stages to the maintenance management. The Civil Engineering Technology Subcommittee in charge of civil engineering work field in the Robotics Committee in Construction of the Japan Society ...
Abstract: Civil engineering construction work has always been accompanied by a high proportion of tasks that are either dangerous or unpleasant or both. Enhancing the general working environment and boosting safety levels are critical issues for the industry. Meanwhile, the industry has been slow to embrace IT, and there is substantial scope for ...
Abstract: Called the urban arteries, the traffic is significantly affected by its congestion. One of the solutions to this is overpass, whose construction is forced to be amidst heavy traffic and thus extending the construction period. To deal with these situations, a crossing-over structure method have been developed in a range of sectors ...
Abstract: There has already been progress in the development of unmanned construction and inspections of structures on land, mainly because it is possible to use radio waves and optical images that are effective ways to remotely control work and operate robots. In contrast it is not easy to develop unmanned work methods for ...
Abstract: The Sea Hunter system is the next-generation construction management support system that allows highly accurate guidance control for positioning workvessels at any time and any place. Positioning accuracy is achieved by WADGPS. This report describes the construction results and effectiveness of the Sea Hunter system, which were obtained from actual construction of the ...
Abstract: Autonomous Underwater Vehicles (AUVs) are suitable for underwater observation, since they can swim freely without an umbilical cable. This paper proposes a robust navigation method for AUVs operating around artificial structures such as piers, quays and breakwaters. This method consists of a State Estimator and a Guidance System, enabling localization in the configuration ...
Abstract: The quality of the design has been recognized as one of the key factors to the success of the engineering project. However, engineers need to repeatedly perform design tasks, such as processing information, to produce an appropriate design result. Such a design process involves many activities and lead into one or several ...
Abstract: State-of the-art three-dimensional (3D) software allow for information exchange with other software used within the AEC industry. In advanced applications construction schedule has been successfully integrated into 3D projects, and the resulting 4D models provide an innovative decision making tool that can facilitate the construction of large scale projects. Though ...
Abstract: When the completion of a project is delayed, how to accurately analyze the impact of a delayed activity on the project is a main problem for construction project managers. Available professional scheduling tools have been widely employed to plan and control construction schedules. They are not designated for delay analysis that requires ...
Abstract: The field of building design is complex, and the successful interplay between iterative and interdependent processes, roles and actions can be seen as a foundation of developing good architectural design solutions and building projects. Over the years, the development of ICTM (Information- and Communication Technologies Management) has led to several changes in the ...
Abstract: The curtain wall design process of Korea can be mainly divided into Basic DWG phase performed in architectural design phase and Shop DWG phase performed in the curtain wall design phase. The designing in such process (the process of going over to Shop from Basic) is being performed mainly by ...
Abstract: Technological advancement plays a key role in business competitiveness of a construction firm in the market. Nowadays, there are many free patent databases worldwide, which provide important sources for information of the technological advancement of construction firms. By combination of patent mapping techniques and properly selected commercial patent analysis software, the knowledge of ...
Abstract: Quantifying the benefits of a knowledge management system (KMS) is a difficult job. Very little literature was found to report the rate of investment (ROI) resulted from a KMS. Quantification of returns from KMS investments involves several tasks: identification of value added knowledge management (KM) activities, identification of benefits generated by the value ...
Abstract: The purpose of this study was to investigate the extent to which integration/automation technologies are being used in executing projects in the Taiwanese and American industries and to quantify the similarity and difference in technology usage in the two areas. This was accomplished by two industry-wide surveys and analysis of 209 American ...
Abstract: The development and performance of construction industry are strongly relative with citizens living quality in each country.Such is meaning that the life cycle management (LCM) and life cycle assessment (LCA) are important issues to each construction project. In this 21st century, information technology (IT) is an important issue for economic ...
Abstract: As the buildings of Taiwan have been stepping towards the aging stage, the act of after-use maintenance of buildings gradually becomes a mainstream movement. After the serious fire of Welcome Restaurant happened in 1995, Taiwan government has been comprehensively implementing Public Safety Inspection Declaration System for the refuge facilities and the constructed ...
Abstract: In this article, we would like to introduce the WABOT-HOUSE project. The attraction of the Waseda University, the School of Science and Engineering, through the Gifu prefecture was the cue of the project. In consequence, the WABOT-HOUSE is the co-operation project with industrial and administrative sectors. Its goal is to encourage the ...
Abstract: Recently, ubiquitous computing is a hot topic. And, ubiquitous computing brings big benefit for robotics. Distributed computers provide much information to robots. And, distributed sensors help the navigation and manipulation of robots based on the sensor network. Moreover, to distribute the actuators at the environment, environment becomes one of the ...
Abstract: Although the use of spraying robotized systems for interior painting was already shown to be feasible and convenient, a lot of experiments must be carried out in the future to deliver a highly autonomous robot for interior painting. A new approach is proposed: two laboratories are set, the former being a full-scale ...
Abstract: The objective of this research is to develop the small-size and light weight window cleaning robot. The prototype of window cleaning robot has been developed. The dimensions of prototyped robot are approximately 300mm x 300mm x 100mm and its weight is approximately 3 kg. The prototyped robot consists of two independently driven ...
Abstract: T-52 Enryu was developed for the purpose of the heavy duty works in disaster spots. It was aimed for heavy labor of a first aid rescue operation in disaster spot and developed large-scale rescue robot T-52 Enryu in corporation with Kitakyushu City Fire And Disaster Management Department, National Research Institute of Fire ...
Abstract: Between Amsterdam and Antwerp a new High Speed Rail link with the length of 96 KM is under construction and will be opened in April 2007. Based on the existing Rheda Ballastless Track construction system a new and improved construction method has been developed. New equipment was designed. After two years of ...
Abstract: In civil engineering projects, operators run their machine, while monitoring machine operation data, soil conditions, situation around their machines, and so on. They basically follow the work directions that are issued based on the machine design and field conditions, such as topography of the site. An increasing number of construction robots are ...
Abstract: At the early design stages in architecture, designers need to go to site frequently and record the contextual information of site with sketches. However, designers still require recalling the significant site information when they go back to their workplace. The main objective of this research is building a mediated workplace ...
Abstract: Despite waste management in construction industry has a significant impact on both economical and environmental issues, the current level of waste management performance in Korean construction is reported as relatively low. To improve any type of management performance, it is necessary to diagnose the current status of the performance level. In this context, ...
Abstract: Overseas construction projects are exposed to diverse and complex risks, including political, economical, social, and cultural issues. They tend to have a high possibility of loss/failure compared to domestic projects. For this reason, risk management is getting more important, emphasized, and systemized so as to improve the project performance. Since each phase of ...
Abstract: The earned value management (EVM) approach is considered to be the most objective method available in the measurement of project performances. Nevertheless, the method is limited and does not directly account for variation in individual performance values about a normal or natural level of project performances. Because of that, conventional EVM may cause ...
Abstract: This paper puts forward an integrated framework for proactive and optimal decision making on projects adopting a process simulation approach. Upstream decisions on project selection and scope definition are linked with the downstream operational processes and service delivery of projects. The findings presented in this paper are based on a case study conducted ...
Abstract: A large-scale of civil infrastructure systems is associated with great amounts of project resources and activities interoperated with various participants and organizations. Well-defined methodology for information acquisition and communication became more critical in the management of civil infrastructure than ever before. Rapidly emerging wireless sensor technology has been drawing a log of attention ...
Abstract: The enormous stock of underground lifeline structures constructed in Japan during the high economic growth period is aging with each passing year. In addition, the need for efficient execution of inspection, diagnosis and repair work is also increasing, as is the severity of the issues involved, including burgeoning repair and renewal costs; ...
Abstract: We developed the Mirror Tele-camera System for efficiency improvement of inspection by TV-camera. And we developed the Sewer Internal-Image Conversion System and the Sewer-Inspection Support System by using the image of the Mirror Tele-camera System. 1) The Mirror Tele-camera System, a camera that can obtain a 360-degree side scan image to improve pipeline ...
Abstract: Due to the location and environment of Taiwan, the frequency of nature disaster is high and the caused damages to the human life, properties and transportation facilities are serious. Considering the disaster prevention of bridge structures caused by earthquake, scour, debris flow, corrosion and senescence, literatures involving the developed bridge management information systems ...
Abstract: In recent years, increasingly more construction companies have adopted the Enterprise Resource Planning (ERP) system in some form for increasing productivity and work efficiency. However, the current practice on construction Quality Control (QC) still centers on quality control of work items associated with construction activities. This makes it difficult to integrate or collaborate ...
Abstract: Advancements in sensor technology have brought the automated real-time bridge health monitoring system. Many long span bridges in Korea and in Japan have adopted this real-time health monitoring system. However, current systemuses complicated and high costwired networkamongst sensors in the bridge and high cost opticalcable between the bridge and the management center, which ...
Abstract: This paper describes a research project that attempt to develop a process integrating method and finally to create a multi-agent system to support the cooperation in a design-build team. The approach taken is to apply Business Process Reengineering (BPR) philosophy for providing a process-based fast-tracking execution mechanism for design-build teams. An Integrated Design-Build ...
Abstract: Sekisui House, Ltd. constructed a zero-emissions recycling system which enables 100% recycling of construction wastes discharged from the companys construction sites. In this system, all construction wastes are recovered at the companys plants, completely sorted, and consigned to recycling facilities for treatment. Sekisui House has maximized sorting accuracy by adopting a 2-stage sorting ...
Abstract: The new house-building market in Japan can be divided into two parts. A half is occupied with detached houses built by large prefabricated house manufacturers as well as rather small local builders. The composition of the detached house-building market is: A little less than 20 % occupied with prefabricated house manufacturers, ...
Abstract: A UK-led construction consortium, ManuBuild, representing ten European countries, has secured 10 million Euros of EU funding for a four year research programme, with a key focus on the supply of housing. It is the largest EU funding ever awarded to the industry and promises a step change from current modern methods ...
Abstract: The author proposes the action-based 4+1 system for management of a constructed complex or construct, which consists of four operational functions and one integral function. They are self-descriptive, self-sensing, self-image over history, self-search, and finally their integral function, self-judge. The management system attempts to establish the means of real time adjustment between design ...
Abstract: The automobile design in "the Chain of Quality" is finished completely in design phase. On the other hand, in construction projects, the design activity for keeping quality is extended into construction phase after design phase activities. The actual condition in construction industry is carried out not in design phases, but in ...
Abstract: In a super-highrise residence project, the project manager needs to forge a long-term risk management plan which covers any problems which may occur from the beginning of the project to the time of demolition. Development of a system which supports a risk strategy effectively is needed as a project becomes more complex. ...
Abstract: In this paper, the risk sharing rules are investigated to characterize the contractual structure of the project contracts.The authors exclusively focus upon theGCWand the FIDICforms,which can be regarded as typical examples of incomplete contract forms.Risks involved in construction works are classified into exogenous and endogenous ones. The paper claims that cleardifferences in both ...
Abstract: Normally, the owner must contract with construction contractors and core system contractor at the same time in the public projects. Especially, for an infrastructure project, the core system contractor and construction contractor may sometimes pass their requests concerning with ambiguous conditions of interfaces to the owner by changing the design, or by modifying ...
Abstract: Currentmonitoring and controlmethods rely on massive manualwork. As a result, control information is expensive to acquire, or is generated irregularly. Additionally, the information is only available infrequently and its quality and integrity are low.The purpose of the work presented in this paper is to improve monitoring and control information, i.e. ...
Abstract: In the last years, several robots for building façade cleaning have been designed and some prototypes have been developed. However, most of these robotics systems are too expensive to be introduced in the market or are only able to cope with very simple completely flat glass façades. Funded by the European Commission, ...
Abstract: The National Institute of Standards and Technology (NIST) is developing a real-time control system for a robotic crane (the NIST RoboCrane) that will perform automated structural steel pick-and-place operations. The control system architecture is based on the NIST Real-time Control Systems (RCS) reference model, which defines a system development methodology and a hierarchical ...
Abstract: The need for additional port capacity has rapidly risen over the last few years due to globalization. Due to high cost of land procurement, land reclamation has become a very promising alternative for expanding and constructing new ports. The presence of soft marine clay poses a major challenge for port development as ...
Abstract: Since the development of the PERT/CPM method in 1958, many planning and controlling tools have been developed; however, no method has exceeded the PERT/CPM to make an epoch-making impact on the methodology for planning and controlling at a construction site. The advanced technologies are strongly expected to serve as platforms for the development ...
Abstract: With the decline of construction investment, clients demand for Quality Cost Down and Shorter Construction Period becomes more intense. And some surveys show that most dissatisfied contractors service for client goes to cost related matter including cost management and unclear decision making process. This report tries to demonstrate how one ...
Abstract: This paper presents a synopsis of the effort at the National Institute of Standards and Technology (NIST) to develop standard protocols for the performance evaluation of 3D Imaging Systems. A 3D imaging system is an instrument used to measure rapidly the 3D coordinates of points on an object or within a ...
Abstract: A seamless means of distributing information between a job site and a site office is often necessary in construction management. Most information written on drawings shows locations. We developed an information sharing tool with a drawing based interface that runs on both a desktop computer and handheld computer, as well as two ...
Abstract: The ability to automatically recognize, locate and track structural steel components during production, fabrication, and erection in real-time using laser-based 3D imaging technologies has the potential to provide a notable improvement in the productivity of the steel industry. This paper provides a review of current practices in the U.S. steel construction industry ...
Abstract: An outline of the developed system for autonomous loading operation by wheel loader will be described. The system consists of three sub-systems: (1) Environment measuring and modeling, (2) Planning and (3) Motion control. The environment measuring sub-system measures 3D shape of the environment by stereo-vision system. The shape of the ...
Abstract: This paper introduces an on-going research effort at the Peter Kiewit Institute (PKI) at Omaha, Nebraska for developing sensor-aided intelligent mobile robots that provide high-level navigation functions for indoor construction site security and safety using wireless sensor networking (WSN) technology. The ultimate goal of the research is the complete integration ...
Abstract: Researches on humanoid robots have become more and more active in various fields. One of the purposes is to construct a coexistent and cooperative society between humanoid robots and human. The body of humanoid robots is similar to human beings enabling them to walk with a pair of legs and to work ...
Abstract: The great majority of robot construction machine currently in service are remotely controlled with the help of video information. Most of these robots are connected to remote-control cameras. In certain circumstances, video images of these robot systems cannot provide clear relative positional relationship between the topography where the job is being done and ...
Abstract: A piece of automation equipment such as a robotic crane for steel erection has no intrinsic knowledge of the process it automates. Thus, geometric and spatial information about a component such as a steel member, and the motion sequences that must be executed to move that component from a staging area to ...
Abstract: In recent years, some unmanned operation systems for the hydraulic excavator are required and some systems are already developed. However, it is difficult to realize effective operation utilizing such systems, because the operator cannot sense ground condition. The skillful operator adaptive their operation to the excavating environment based on the ...
Abstract: The excavation process has got two main features. The first one is the soil digging. It can be regarded as a quasi-static process in fact, in which the acceleration could be neglected. The second one is the soil transportation and bucket discharging. It can be considered as a dynamic process. Some parts ...
Abstract: In recent years, automation system based on IT technology becomes very popular not only for manufacturing industries but also for the construction and civil engineering industries. The conventional location survey method in the civil engineering construction site is pinpoint location survey for a broad objective area. The conventional method has severe constraints when ...
Abstract: Efforts to promote the information integrated construction of civil engineering work include the study and development of systems for efficiently conducting work and saving labor. However, such systems are often designed for a specific construction site or machinery, so construction information cannot be fully applied to other work sites or ...
Abstract: Ministry of Land, Infrastructure and Transport has been promoting computerized construction for the purpose of rationalization of construction and improvement of supervision and inspection work with regard to improvement of efficiency of construction, enhancement of safety, quality assurance and conservation of environment, etc. by effective use of information in relation to construction where ...
Abstract: Many coastal areas in Japan are in a distressed condition due to beach erosion. Sand bypass systems offer one countermeasure for beach erosion. In the conventional sand bypass method, heavy equipment such as a backhoe is used to collect sand when the location is above sea level, and a dredging ship ...
Abstract: The work shows the principles and techniques that were the base of conceiving the control equipment to drive the robot mechanism, to align the video camera used for the checking of the pipe and the way of taking over the video images on a computer. The driving of the robot moving system ...
Abstract: The current pavement sign marking operations are manually carried out, which are labor-intensive. This method requires blocking traffic for a long period of time resulting serious traffic jam. Also, the workers are exposed to possible injury and even death by passing traffic. This paper deals with the development of a robotic system ...
Abstract: Automatic data identification (Auto ID) technology such as bar code has grown rapidly in various industries. However, the focus of these applications has primarily been limited to the internal operations of a few larger companies. One of the major barriers to adopt modern Auto ID technologies in the construction industry is the ...
Abstract: The SCM system must apply to the curtain wall work because many stakeholders are participated in this work. By the way, each participant has its own system. Although the system is helpful for them to control its enterprise, it isnt available between one another system. The SCM system is necessary ...
Abstract: Both recent legislation codes and the evidence of the effects of high noise levels on human health have directed research activities towards the problem of the improvement of Sound Transmission Loss (STL) of glazed facades in the frequency range (low-medium) where passive means were already shown to be not effective. Adopting active ...
Abstract: This paper describes the large-scale movable monument exhibited at the International Expo 2005, Aichi, Japan, as the first application of an adaptive structure using a VGT mechanism. This monument is composed of three identical movable towers comprising four truss members combined by VGT at joints. The VGT is an adaptive truss with ...
Abstract: This research investigates the feasibility of web technology as a means of handling service requests for delivering high quality service in building operation and maintenance. This research proposes a web-based graphic service request (WGSR) system as a pragmatic solution to the limitations of current computerized maintenance management system (CMMS) processes. ...
Abstract: The Automated Building Construction System (ABCS), which was developed for the construction of high-rise structural-steel buildings, applies the ideas of factory automation to the construction site and allows work to be done in a comfortable factory. It applies automation, robotics, and computer technology to building construction. ABCS integrates the Super Construction ...
Abstract: Robots are only incidentally used to assemble wall panels in high-rise buildings, even though robotic technologies for various applications are available. These applications can improve construction site safety and increase the productivity of the assembly process. A research project initiated at Eindhoven University of Technology (TU/e) in the Netherlands aims to ...
Abstract: To efficiently and effectively manage projects in the construction phase, project managers have to transfer information within the drawings to obtain a project schedule. However, practically, the result is usually arbitrary depending on the project schedulers experiences. This research employs MD CAD objects as basic scheduling components to develop a model that can ...
Abstract: It is important that how to improve junior engineers efficiently acquire construction projects experience. For junior employees training, how to effectively reuse the tacit knowledge through information technology becomes an important subject in construction. If the knowledge map could be applied in construction, it would achieve the following spots: (1) enhance the knowledge ...
Abstract: Recently, Knowledge Management (KM) has been applied to business management practice. Surprisingly, there are few studies that address the most fundamental problem in KM: people may prefer not to share their knowledge in order to preserve their intellectual or proprietary values in the organization. Without the premise of each individuals willingness to ...
Abstract: 'Knowledge Management' (KM) is a promising business management concept that is gaining wide acceptance and is being implemented in various sectors to achieve improved level of performance and competence. Project management competence is one of the most significant criteria upon which the project performance is dependent on. Further, effective project management relies ...
Abstract: Knowledge management (KM) is the organization, creation, sharing and flow of knowledge within organizations. The reuse of information and knowledge minimizes the need to refer explicitly to past projects; reduces the time and cost of solving problems, and improves the quality of solutions during the construction phase of a construction project. The knowledge ...
Abstract: This paper focuses on evaluation of the performance characteristics of workflows in constructions modeled with stochastic Petri nets (SPN). This goal is achieved by focusing on a new model for Artificial Social Systems (ASS) behaviors. ASS exists in practically every multi-agent system, and play a major role in the performance and effectiveness ...
Abstract: Accurate progress management is one of the critical factors for successful project management in the sense that it enables forecasting risks and taking corrective action by monitoring project status. However, the existing progress measurement methods have limits on accuracy and reliability due to ad-hoc measurement based on the personal experience of the ...
Abstract: This paper presents the design of an XML schema-driven, tool-building environment, named XsEnvironment, to facilitate application of construction information standards. XsEnvironment is designed to take an XML Schema of a construction information standard, as input information, and then automatically build the corresponding form-based XML information processing applications, which may include XML information editor, ...
Abstract: The Automated Life Cycle Management System (ALMS) is a web based system that is devised to manage a curtain wall from design to installation and maintenance using Radio Frequency Identification (RFID) tags on the curtain wall units. ALMS is not yet completed, but the prototype was implemented to analyze the effects. It ...
Abstract: In order to enhance experience management for engineers participating in construction projects, it is helpful to provide engineers the experience exchanging and sharing platform to understand important issues form the previous executed projects during the construction. The proposed experience maps help engineers better to illustrate what they have previous earned experience to real-life ...
Abstract: This technology displays each 3-dimensional stage of construction based on building model, construction plan model and process model, and is utilizable for the presentation in order-received stage and work directions in construction management stage. Moreover, this method not only can reduce input time sharply as compared with the method using conventional CAD and ...
Abstract: In 1999,Law Concerning Special Measures against Dioxins was enacted. An incineration plant exceeding the effluent standard of dioxins stops operation and the plan of demolition is carried out. When demolish an incineration plant polluted by dioxins，it is necessary to ensure workers safety, neighbors health and their living environment. Authors have developed an automatic ...
Abstract: Construction work should be simplified by introducing modularity into both structural components and means of assembly. Based on this idea, we have proposed a novel concept of fully automated construction system called Automatic Modular Assembly System (AMAS), which drastically reduces the difficulty of automated construction task. In this paper, we focus on distributed ...
Abstract: In construction projects, one of the main problems in the schedule planning and control is the determination of the project schedule, especially, when the resources required are limited. Project managers or schedulers have used an estimated time to assure the completion time of either an activity or a project. However, this traditional ...
Abstract: Construction project scheduling is crucial to project success. From the perspective of contractors, a practical schedule based on engineering experience not only improves the accuracy of project duration and cost estimation during the bidding process, but also facilitates the operation during project execution. This study employs Constraint Programming (CP) techniques to resolve resource-constrained ...
Abstract: Buffer in construction management means a cushion that protects the planned project schedule from uncertainty. Traditional buffer management, however, often fails to perform its purpose, hence reducing efficiency in schedule management. Such failure has been mainly attributed to the fact that traditional buffering is based on experience rather than being made in a ...
Abstract: Pre-project planning is the project phase encompassing all the tasks between project initiation to detailed design. The development of a project scope definition packages is one of the major tasks in the pre-project planning process. Project scope definition is the process by which projects are defined and prepared for execution. It is ...
Abstract: The study of construction planning assist method using information technology is being continued steadily. However, the practical planning assist methods like a automatically checking construction plan instantaneously have not been proposed. The purpose of this paper is to provide functional and practical new construction planning assist method using construction model. Authors developed Erection ...
Abstract: The assignment of staff to projects is a regular activity for many contractors, government agencies and consulting firms. Whereas the primary objective of the assignment is to maximize the overall profit, issues dealing with manpower management must also be incorporated to ensure strong morale and to enhance competitiveness. Such issues include to ...
Abstract: Current monitoring and control methods rely on massive manual work. As a result, control information is expensive to produce, or generated irregularly. Additionally, the information is only available infrequently - in many cases after the controlled activity was completed - and its quality and integrity are low. The purpose of ...
Abstract: Computer-Integrated Construction (CIC) is the capability of a computer system to create models of certain aspects of the design and construction processes and consequently to direct them into reality. The premise of CIC is that the clear-cut separation between the competencies, know-how and responsibilities has now been turned upside down by the introduction of information technology in ...
Abstract: This paper deals with machine collaboration in modern construction sites like that proposed in the FutureHome building system and suggests a scenario for implementing a safe collaborative system. The collaboration is meant to happen between automatic machines and between machines and operators. Safety issues are discussed and treated as part of ...
Abstract: Mankind has continued challenging to the universe with curiosity since mid-1950s, and, as a result, the mankind could step on the moon and launch the satellites and exploration robots to several planets including Mars to collect desired information. The construction has contributed to the mankinds development and abundant life for a long time. The interests ...
Abstract: Automation within the range of handling and assembly applications requires qualified solutions due to the complex technological processes. The long-term goals are the reduction of cycle time and an increase of the process quality. They can be achieved by innovative concepts which are based on parallel kinematics, realizing higher speeds and accelerations with constant accuracy compared ...
Abstract: The main purpose of tunnel ventilation system is to maintain CO pollutant concentration and VI (visibility index) under an adequate level to provide drivers with comfortable and safe driving environment. Moreover, it is necessary to minimize power consumption used to operate ventilation system. To achieve these purposes, FLC (fuzzy logic controller) has been usually utilized because ...
Abstract: Digital inclinometers are used in geotechnical engineering to monitor lateral deformations of excavation walls, retaining walls, embankments and landslide areas. Current conventional slope inclination measurement requires a person to manually lower a probe into a grooved casing and record inclination at prescribed intervals as the probe is drawn upwards. Developing an automated inclinometer system would enable continuous ...
Abstract: The NIST Construction Metrology and Automation Group (CMAG) has ongoing research in the application of laser imaging technologies in construction. Previous work has primarily focused on terrestrial LADAR scanning for applications such as terrain characterization, earthmoving analysis, and targeted object localization. The LADAR systems used in those research efforts can be characterized by long scan intervals and ...
Abstract: In buildings, windows and glazed facades are often the weak link in protecting the interior from exterior noise. Since passive means for improving the Sound Transmission Loss (STL) of glazed facades are very expensive and are effective only at high frequencies, an active controller that increases the STL in the low frequency range is an ...
Abstract: Predicting the environment people will be living in during the next millennium is not easy task, even at all possible. Film makers continually portray baffling urban decay where chaos takes over amidst convulsive and apparently uncontrollable growth. When this is coupled with a grotesque transformation of human relationships the consequence of a generalized mistrust in mankinds ...
Abstract: This paper describes a research effort directed to produce methods to model three-dimensional scenes of construction field objects in real-time that adds valuable data to construction information management systems, as well as equipment navigation systems. For efficiency reasons, typical construction objects are modeled by bounding surfaces using a high-frame rate range sensor, called Flash LADAR. The ...
Abstract: A photograph always makes an image of objects as they are without any alteration, so that a photograph is recognized as highly accurate information. Thus the photograph has been widely used as a record of site, routine work particularly for construction control and inspection. As a characteristic of photograph, the point of view for a photo ...
Abstract: Automated construction is in high demand in many applications in the extreme environments such as space structure construction. In order to avoid exposure of human workers, construction machines are usually remote-controlled for such applications. Because of communication delay and narrow communication bandwidth, such systems require high-level expertise and also are ineffective and frustrating to the operators. We ...
Abstract: The recomposition of fragments is a challenging task that must exploit all the available information about fragments and the whole skill of human operators. A new approach to the recomposition of fragmented artworks is presented. It has being developed working on the problem of recomposing the St. Matthew fresco, painted by Cimabue in the Upper ...
Abstract: Accurate analyses of equipment idle time is crucial for the efficient utilization of construction equipment in a large construction project. The less idle time the equipment has, the higher productivity the construction can achieve. However, it is not practical to measure construction equipment idle time by human visual observation. This ...
Abstract: Pollution control and landfill remediation are urgent incumbents, and robot technology is effective means to supply safe and worthy solutions, on condition to figure out reliable task-oriented architectures and to enable remote-steered duty cycles by implementing the appropriate software-hardware information aids. The paper presents a noteworthy example achievement, specially addressing ...
Abstract: Controlling of excavators arm is an important and basic task in autonomous research of hydraulic excavator at present, but the behavior of the excavators arm is dominated by the nonlinear dynamics of the hydraulic actuators. To find a feasible way to control excavators arm and realize autonomous excavation, firstly, Full kinematic and dynamic models of ...
Abstract: The efficient and unerring development of sophisticated manipulation machinery strongly relies on the efficient use of CAE (Computer Aided Engineering) methods. Meanwhile these methods more and more spread into areas, which have been so far domains of so called VR (Virtual Reality). This encompasses the design aspect as well as the simulation of an already defined ...
Abstract: During the eighties, the construction industry in Japan was in trouble. The image was bad, too many fatal accidents happened on the construction sites and craftsmen preferred to work in other industries. In addition, the space for constructing high-rise buildings was minimal, especially in the big cities. This is why in the nineties, the leading ...
Abstract: Tensegrity is a technology that can be applied to structures and its use can influence the construction time efficiency and project management in general. A significant drawback for a systematic application of tensegrity structures in the construction industry is the particularly complex geometry that engineers and architects have to generate in a two or three dimensional ...
Abstract: The building construction industry in Europe is now experiencing new forms of procurement and production systems, reflecting a matured market client/user-dominated, where the demand of new building is both for high-quality and low costs. The current state-of-the-art in building procedures must be improved, according to the dynamism of economic, social and technological factors that greatly affect ...
Abstract: Information technology can be generally understood as techniques and methods needed for creating, processing, refining, transferring and utilizing information through different working processes of construction. For managing information process different measurement, software, modeling, information communication as well as numeric control technologies are needed on the operational level. A visionary model of automated total process ...
Abstract: This paper deals with fully automating the pavement lane painting operations utilizing robotic technology. This study includes a novel design of robot structure that can be easily installed on support commercial truck and image processing algorithms that can recognize deteriorated lane marks. With this robot system, a single operator within a cab is capable of ...
Abstract: Quality management of the construction process is finding its way into the construction industry and authorities. with the goal of higher profitability, increased efficiency, reduced cycle-time, decreased call-backs and warranty work, and increased customer satisfaction. To reach a total quality management throughout the whole lifecycle of a construction (consisting of the steps 'planning', 'design', 'construction', operation and ...
Abstract: Automation in construction is one of the important issues in the field of robotics, but is distinct from factory automation (FA). Because of variations in materials and management, the role of automation in construction is often limited. A curtain wall is a large, heavy breakable object and requires precision installation, making it a better candidate ...
Abstract: one of the most important requirements in repairing and maintaining of pipelines is the ability to monitor and evaluate the pipes interior. This work deals with the design and prototyping of an apparatus to traverse piping systems for inspection, cleaning and or examination of the piping systems. At first, the existing pipe crawlers are studied ...
Abstract: In this paper a study of feasibility is presented for using robots or robotic systems in novel applications concerning with activities related to analysis and restoration of historical sites of architectonic interest. The work has been developed within a collaboration between DART and LARM Laboratories, of University of Cassino. Design requirements and peculiarities of operation of ...
Abstract: A number of problems in the construction industry could be solved with the aid of automation and robotisation technologies. There are indications that automation and robotisation processes are similar to transition processes. Recent years have seen a good deal of research into these kinds of often complex processes and how to manage them. This knowledge may ...
Abstract: This paper puts forward a framework for benchmarking appropriate remuneration schemes for optimum labour productivity in highly unique construction industries in modern engineering practice. Socio-economic motivational factors among the various stakeholders have been identified and analyzed in order to incorporate in overall decision making process. The research aims to develop an automated decision support system (DSS) forecasting ...
Abstract: The sequence of design activities is vital, particularly in interdisciplinary projects. Sequencing of activities is influenced by the information dependency among the activities. The dependency relationships among the design activities in a project are of three types independent, dependent and interdependent or loops. Interdependent activities (or loops) require assumed information to start and progress. If ...
Abstract: Combining the design-build and fast-tracking delivery methods, this study aimed to reengineering the fast-tracking processes across both organizations of designer and constructor, so that fast-tracking processes in the design-build team can span across organizational boundaries and are composed of cooperating workflows executed in different organizations. For this purpose, two subjects are described in this study, namely, ...
Abstract: Conceptual cost estimate plays an essential role in project feasibility study. In practice, it is performed based on estimators experience. However, due to the inaccuracy of cost estimate, budgeting and cost control are planned and executed inefficiently. Support Vector Machines (SVMs), an Artificial Intelligent technique, is used to conduct the construction cost estimate. The algorithms of ...
Abstract: Finding the shortest path between any two nodes in a network is a classical problem in a number of research areas. Although some general shortest path algorithms have already been developed, such as Dijkstras shortest path algorithm, in some situations, their computation complexity is too high to be of any ...
Abstract: Mobile robotics can be successfully applied for 3D environment exploration and reconstruction. Here, a vehicle tracking system is described based on combining laser and camera information aiming at building maps of unstructured environments. The proposed system integrates a ground-fixed CCD camera with a phase-shifting laser to follow the vehicle moving across the environment. The method comprises two ...
Abstract: With the complexity of construction process, process information visualization and representation is often key research issues. Among those issues, when the problematic events occurred and need attentions of responsible persons, the notice methods are often applying multiple communication media such as vocal communication, SMS messages and pictures taken from the ...
Abstract: Among the goals of intelligent soil compaction is feedback control of vibration frequency, force amplitude, and forward velocity to optimize the compaction of soil. The development of a robust model structure for feedback control and/or soil parameter identification for continuous quality control/quality assurance requires comprehensive information about the machine's behavior, e.g., vibration characteristics. This paper describes the ...
Abstract: In construction scheduling, problems can arise when each activity can be started at different time points and the resources needed by the activities are limited. Moreover, activities have required conditions to be met, such as precedence relationships, resource demands, etc. To resolve these problems, a two-phase GA (genetic algorithms) model is proposed in this paper, in ...
Abstract: The Application of IT is not as popular as other areas at Construction Industry in Taiwan. Since IT can help enterprises to integrate most complex information, we can make big progress in cost, quality and service. Construction Industry has to integrate surveying, planning, design, structural design, shop drawing, contracting, valuation, and so on, we need ...
Abstract: In order to maintain ecological environment, protect limited natural resources, promote the quality of life, and advance the eternally usage of all precious resources, we have some good achievement in both industrial circles, government official areas, and academic communities. Since each engineering method will cause different impact, we need to effectively grasp the biological information for ...
Abstract: Real-time decision-making with partial information is commonplace in the daily tasks of a construction manager/engineer. However, traditional decision support systems (DSSs) do not support partial information inference. Data pre-processing was adopted to solve the data-incompleteness problem. Unfortunately, such approach may be biased. This paper presents a newly developed neuro-fuzzy system, named Variable-attribute Fuzzy Adaptive Logic Control Network (VaFALCON), ...
Abstract: This paper presents an integrated Web-based Cost Estimator (iWICE) system. The iWICE incorporates the influence of site conditions into a previous developed Web-based Intelligent Cost Estimator (WICE) system for highway construction projects. A VaFALCON neuro fuzzy system is employed to construct the site condition knowledge-based system that provide modifications for work unit costs from WICE. Moreover, VaFALCON ...
Abstract: The Construction environment has been changed tremendously for last few years in Taiwan. Since the capital has been flowed to China, real estate has no more good market. By the way, the practice of volume ratio makes the problem of vacant houses worse. In order to solve the land investment pressure, build companies need ...
Abstract: In Italy, monitoring presences in the building site represents an important problem for technical and organising aspects and at the same time from the economical and administrative point of view. The existance of a social clause concerning the respect of the terms of the national contract signed by trade unions in the contracts of public ...
Abstract: Although the Japanese industrial robot companies are proud of their number and sales of commercial industrial robots, the advanced research and developments are to look at the future robotics used in new applications. The term Robot Technology (RT) suggests rather broad meaning not limited to the conventional robot arm and its applications. It ...
Abstract: Recently, sensing technology has been experiencing quantum leaps in price reduction and in performance. This has occurred because of simultaneous advances in new materials, cheap computing power, micro to nano-level integrated fabrication, wireless networking, and sophisticated information technology. At the same time, the pace of business and the pace of change have been ...
Abstract: The paper aims to discuss future direction of management of innovative technologies toward construction innovation. Our focus here is technology and knowledge fusions. At first technology and knowledge fusions in building construction are described. Secondary processes of technology and knowledge fusions are analyzed focusing on automation technology and information technology. Thirdly, a strategy ...
Abstract: As modern projects become increasingly complex, dynamic, and pressed for time, delivering them on time and on budget using traditional means is becoming more and more challenging. Strategic Project Solutions, Inc. (SPS) has successfully extended Lean Manufacturing techniques to complex production-based project environments, namely large construction and industrial projects. To support large and complex ...
Abstract: AMT Co., Ltd., which was founded in November 5th 1998, possessesoutstanding skills in designing, manufacturing and operating computer-based motion systems. In particular, the company is recognized as promising in business areas such as hydraulic system, robot using the servomotor system, automated construction machine and animatronics. In the company, the R&D ...
Abstract: Optimal integrated design is potentially the most significant consequence of recent advances in service robotic technologies, enabling novel organizational forms to evolve. This paper provides a broad vision of the advent of a novel multi-disciplinary organizational function in the manufacturing and service sectors. Socio-technical management means an appreciation of the ...
Abstract: Nowadays, the dependence of productivity on construction equipment is getting bigger and the mass of equipment cost is increase, those are indirect evidence of important of equipment. But construction field has the characteristic that is the various activities and wide work area. These make many problems in the operating of equipments. These problems ...
Abstract: The actual research trends in robotics and automation in construction industry (RAC) are much different in comparison with the last decade. While during the 90s the R&D activities were focused in the development of new robotic systems (most of them teleoperated) and in existing machinery automation, the actual efforts are concentrated more in ...
Abstract: Recently, the construction industry is increasingly internationalized. Especially in the Northeast Asian region, there are opportunities in which companies from various countries collaborate in projects more and more. And a lot of problems are caused by the differences between Western project management and local project management. The aim of this study is, as ...
Abstract: This paper introduces the result of a survey aimed at identifying the factors that affect the quality management system of construction process in China. This research was carried out to analyze the factors and to rank them according to their degree of importance. Two phases (design phase and construction phase) of ...
Abstract: In this paper the type of CAD model-based automation is studied for the domain of infra construction tasks. The needs for machine control models vary from machine to machine. This paper describes as examples the machine control models needed for road graders, asphalt pavers, excavators, milling machines and steamrollers the most typical ...
Abstract: Rapid development of computer or communication technology brought the IT, Information Technology, to the road construction field also. IT may include possibility for rationalization of job site work. Among them, new technology 3D-MC, 3 Dimensional Machine Control system, can unify following data, field design, survey, and machine control. Therefore 3D-MC is able to ...
Abstract: Ground and rock mass considered in tunnelling have characteristics such as uncertainty, heterogeneity and structural complexity because they have been formed undergoing various geological events for a long period. So, it is difficult for engineers to predict behaviors of rock mass in tunneling. In the paper the authors describe the ...
Abstract: Specification of reinforcement method was suggested according to the ground condition and tunnelling environment such as adjacent building and surface settlement. Tunnel database consists of 8 different groups of data according to the tunnel construction situations and major problems of ground. A tunnel countermeasure expert system based on client/server system ...
Abstract: This paper introduces information flow models for the total process of automated road rehabilitation. Only superstructure layers of roads are considered in this examination. The practical processes and tools used in the common construction processes in Finland and Italy are examined. The purpose is to demonstrate the comprehensive development of automation into rehabilitation ...
Abstract: In the customer-focused paradigm, high quality products or services can strengthen competitiveness, raise market-share, and provide a basis for long-term relationship with owners. But in most cases, the lack of quantitative data makes it difficult for managers to judge the current status of quality appropriately during a construction phase. Although quality is one ...
Abstract: The high risk, uncertainty and complicated interface for division of work in the construction industry have resulted in endless engineering dispute issues. Submitting claims during the performance of construction contracts can be money wasting and time-consuming process. This paper summarizes dispute issues occur often on construction site, clarifies what responsibility each party should ...
Abstract: It is not unusual that BOT firms are granted to develop or operate certain business/project beyond the main scope of a BOT project, such as the surrounding land development. By granting these BOT project associated business, government can improve the project expected return and financial viability, and encourage potential developers to participate in ...
Abstract: Construction equipment management and performance data are valuable assets for large contractors that need such historical data for decision making about resource allocation and equipment replacement; however, with large amounts of accumulated data, traditional data analysis based on a transactional system becomes increasingly inefficient. This paper summarizes a web-enabled data ...
Abstract: Conceptual cost estimation during the early stage of a construction project plays important role for feasibility analysis and project planning. Traditional approaches rely heavily on experienced engineers, and may cause loss of conceptual estimation knowledge of the firm. This paper proposes a method integrates a previous developed conceptual cost estimation method (PIREM) with the ...
Abstract: Knowledge map is one of the most important and useful tools in the knowledge management field. Knowledge map can be used to effectively plan the implementation of a knowledge management strategy for a term, department, and enterprise. With the assistance of knowledge map, users cannot only easily understand and identify where the knowledge ...
Abstract: In the last years, several robots for building façade cleaning have been designed and some prototypes have been developed. However, most of these robotics systems are too expensive to be introduced in the market or are only able to cope with very simple completely flat glass façades. Funded by the European Commission, ...
Abstract: To assess safety, cracks in concrete structure are measured by inspectors, who observe cracks with their naked eyes and record them. But manual inspection is slow, and measured crack data is subjective. Therefore, this study proposes inspection system for measuring cracks in concrete structure and providing objective crack data to be used in ...
Abstract: This research present a system named Prioritization System (PS) to support the maintenance engineers while they are making the decision about the priorities for maintenance applications of school buildings. Distinguished from the other research done before, which built the priority model only with historical data, the PS presented in this research bases both ...
Abstract: Knowledge management has already demonstrated a number of benefits and has offered justification for further implementation. The Internet facilitated its development and growth via fast and timely sharing of knowledge. By sharing knowledge, a enterprise can creates exponential benefits from the knowledge and experience as employee learns from it. In Taiwan, the construction industry ...
Abstract: The duration of a construction project must be an important item in construction contracts. If a contractor can work in the planned parameter, the contractor can finish the construction project in a timely manner. However, when construction industry is compared to other industries, it is difficult to complete a construction project in which ...
Abstract: It is the time resource that one deals with in scheduling. The task is how one can achieve the optimal allocation of a given time resource over a set of assigned activities. Most of the existing scheduling methods use a parametric time by which the activities are orderly allocated in accordance with ...
Abstract: Practitioners often manage construction interfaces and scheduling separately. However, poor management of construction interfaces frequently causes delays in project duration. This work develops an innovative scheduling model that incorporates management of construction interfaces for building projects. The proposed model comprises five steps, including generating an integrated schedule, establishing interface work groups, identifying front- and ...
Abstract: Applying the business process engineering and organization planning philosophy, this study focuses on the human resource planning for the construction management process reengineering to develop the team-based human resource planning (THRP) method for humanpower allocation, which assists construction companies for scheming, and assaying humanpower al lo c a t ion alternatives as the ...
Abstract: Roadway construction planning processes involve a large amount of information regarding design, construction methods, quantities, unit costs, and production rates. GIS (Geographic Information System) is a very effective tool for integrating and managing various types of information such as spatial and non-spatial data required for roadway construction planning. This paper proposes a GIS-based ...
Abstract: This study relies on integrated inventory theory which merges with the supply chain concept and aims at the steel bar material of precast factorys twoechelon supply chain system. In order to consider the variable demand rate, unfixed supply time, unfixed supply frequency and unfixed supply quantity, this study builds a strategic model that minimizes ...
Abstract: This paper describes the major components of software architecture of an autonomous visitor guide robot with the brief explanation of its hardware system. This robot, Butler, was deployed in a real office environment, Intelligent Robot Research Center at KIST, where it guided many visitors successfully. To make the robot navigate the office and ...
Abstract: The wave of advanced information technology will drastically change the ordinary construction systems in the Japanese construction industry. The procurement and delivery systems of the Ministry of Land, Infrastructure and Transportation will also be computerized. Construction robots need to be regarded as a construction system in the context of the sophistication of information ...
Abstract: The study presents a practical, optimal control system of the discharge process of a backhoe bucket. The process begins when the bucket is filled and ends when the bucket come back to the digging position. In the process, several geometrical constraints are considered, such as, clearance dimension, and obstacles in the excavator working ...
Abstract: The implementation of industrial robots in construction industry has proven to be difficult. The problem is not the technique but rather the difficulties in mixing human and robot labour in the dynamic, unstructured environment on site. Both systems need their specific basic conditions, which are impossible to provide on the ...
Abstract: In the decades to come, building production will concentrate in the metropolitan centres of the world due to the migration of the worlds population to the major cities. An improvement of the construction process in densely populated inner cities will be the task of the future. This focuses on performance management, construction ...
Abstract: The feasibility of CC along with its unique capabilities and key performance characteristics (speed, surface quality, material variety, possibility of embedding reinforcement, etc ) have been demonstrated in the construction of relatively large geometrical shapes and structural components using a variety of construction materials. Construction and testing of full-scale concrete wall ...
Abstract: Humanoid robot walks by a pair of legs and works using two hands. About this humanoid robot, authors investigate about the possibility of its application to various works on site. Investigation is conducted by the following three methods. The first one is an investigation of matching the demand function of the latest ...
Abstract: Mechanization is necessary for safer and more efficient underwater construction work in port areas. Teleoperated underwater construction machines are under developing. The problem is that conventional TV camera system is useless in water because of turbidity. Haptic information is introduced as the aid to control construction machines substituting for visual information. Components of ...
Abstract: The concrete pipe laying works are conducted in most of the construction sites. Several automated systems for the pipe laying works have been developed in advanced countries to improve productivity, safety, and quality, and to gain potential savings in costs. They mainly focused upon easy handling and clamping system for the pipes. ...
Abstract: Now there is a requirement in the simple and reliable, universal and effective systems providing given accuracy of conducting of holes. At creation of commercial plants of the directed lining of holes it is necessary to correlate integrally a design of head gear (HG) and installations as a whole, ways ...
Abstract: In the long run reusable partitions walls have lower costs and are more economical and especially more variable compared to convenient post-and-beam-structures. Because room requirements mainly in office and administration building change faster and faster, an extensive potential on future markets for these technologies exists.
Abstract: In this paper, we describe implementation and test result for a LonWorks based control system in which air conditioner is handled by LonWorks node. The LonWorks based control system for handling air conditioner remotely is integration of control nodes because LonWorks is a communication protocol which is adopted as a standard protocol in ...
Abstract: This paper provides information on Mixed Reality (MR), and more specifically Augmented Reality (AR) and their potential applications in heavy construction equipment and operator training. Mixed Reality involves the use of special display and tracking technologies that are capable of seamlessly merging digital (virtual) content into a real environment. Conceptual ...
Abstract: Improving the scheduling of the design project can greatly reduce the total duration of the project. However, appropriately representing the schedule of a design project is complicated chiefly because the design activities often have different degrees of information dependencies between each other. That is, design process involves a number of iterations ...
Abstract: This paper presents a methodology for integrating 3D (three-dimensional) object transformations with simulation in order to build a 4D model to aid practitioners to visualize tower crane operations on the computer screen. Since the detailed project schedule is already divided into work-packages, the proposed methodology will further divide each work-package ...
Abstract: In this paper, earth coordinate of the guidance robot for the visually impaired is detected by using GPS (Global Position System), and the system which leads the visually impaired to position information (TM coordinate) in Korea is achieved through map-matching with electronic map. The visually impaired need more information about the walking path than ordinary people when ...
Abstract: Automation of construction processes can result in reduced project costs and increased worker safety. A process that lends itself to automation is the picking and placing of objects. However, determining the pose (position and orientation) of an object is critical. LADAR (laser detection and ranging) data provides 3D information of ...
Abstract: Motion tracking and object segmentation are the most fundamental and critical problems in vision tasks such as motion analysis. An active contour model, snake, was developed as a useful segmenting and tracking tool for rigid or non-rigid objects. Snake is designed on the basis of snake energies. Segmenting and tracking can be executed ...
Abstract: 3D spatial-modeling can be used in various safety-enhancement applications and for as-built data acquisition in project-control systems. The objective of the research reported herein was to provide spatialmodeling methods that represent construction sites in an efficient manner and to validate the proposed methods by testing them in an actual construction environment. Algorithms to ...
Abstract: Nuclear Power Plant (NPP) Construction is a long-term project with huge scales of construction data and it requires a large number of materials, labor and equipment. Also it is a grand scale project that invested with billions to build a major power supply system. To effective manage NPP construction project, it is essential ...
Abstract: The construction market has been declined significantly for last few years in Taiwan. In order to survive in such difficulty environment, we have put some efforts on improving construction methods, creating new materials, and some other aspects. However, the most important factor to assure the success for construction companies is ...
Abstract: To face the worldwide competition and pervasively use of new information technologies, enterprise resource planning (ERP) systems are executed and implemented to enhance their competition capabilities. In order to implementing ERP systems successfully in construction industries, an appropriate analysis model ICE-PP (IDEF0 in Construction Engineering with The Proven Path) is presented in the ...
Abstract: The Public Construction Commissioner (PCC) in Taiwan is sponsoring a project to establish the mechanism for developing information standards, in terms of XML schemas, for public construction work and develop an XML Schema repository system for managing and publishing the standardized XML schemas. Parts of the ebXML (Electronic Business using eXtensible Markup Language) ...
Abstract: Larger construction companies generally have several on-going projects at one time, many internationally. The ability to make corporate decisions in a timely manner for these companies becomes critical to avoid costly corrective measures. The information necessary for making such decisions comes from a large pool of corporate data. In order to efficiently process ...
Abstract: Work information in a construction project can be effectively used to analyze the project status related to schedule, cost, productivity etc. The purpose of this research is to develop a computer-based system using PDA and barcode technology to measure and monitor the amount of workforce resources and productivity. The developed system is expected ...
Abstract: Most contractors negotiate with suppliers for their construction procurement according to negotiators experiences instead of extensive exploration of negotiable options and negotiators preferences. Consequently, negotiators often reach suboptimal agreements, and leave money on the table. This research developed an agentbased computer system that find optimal agreements using the genetic algorithm, compared the ...
Abstract: Recently construction workers tend to work alone and are getting older. In such working atmosphere, monitoring their works at the site is necessary for keeping task performance quality and accuracy. However, the management and evaluation of workers performance can only be done by supervisors physical observation. Understanding of their works ...
Abstract: This paper presents a research effort designed to produce a digital imaging-based method to efficiently assess the level of construction project progress. Cameras are widely used to monitor and record various activities on a construction site. The images produced by the cameras can be processed with digital imaging techniques to ...
Abstract: Although considerable achievement has been made to the development of methods of extracting 3D geometrical information of objects from a scene, there are still major difficulties to visualize complex objects into descriptive CAD models. This paper introduces a new framework for rapid 3D modeling for complex planar objects which would enable automated material ...
Abstract: This research used a 3D scanner to retrieve the geometric information of finished pipe layout inside ceiling space and used the 3D point clouds to facilitate follow-up building management. The presence of as-built pipes enables the measurement of relative locations between various pipes, pipes and slabs, or pipes and walls. ...
Abstract: Many facilities management systems depend on location information for identifying facilities of interest. However, obtaining location information in a large open space is not sometimes easy due to lack of landmarks. Although Global Positioning System (GPS) is well known for its ability to provide accurate positioning when used outdoor, it was seldom intended ...
Abstract: In this paper we propose an efficient method of localization for mobile agents by using the active beacon. Active beacons include the ultrasonic sensor, RF module and 8bit microprocessor. Existent systems have the constraint that one beacon cannot cover wide area since ultrasonic sensors have limits in the angle of ...
Abstract: A form-based XML information processor, named XsForm, has been developed in this work. XsForm takes an XML schema as input and generates the corresponding Windows forms automatically to facilitate gathering, editing, sharing, and management of XML information. The information processed in XsForm is then saved into a well-formed and valid XML file for ...
Abstract: This paper reports the development of mobile computing in construction management. The paper focuses on the methodology of the development based on EUC. First, the paper indicates the effectiveness of EUC in construction projects. The authors introduce design pattern of user interface and the use of UML for EUC. Secondly, the paper describes ...
Abstract: This paper describes a research study that is investigating data and technology requirements for the implementation of integrated real-time materials management on construction job sites. Specifically, the research aims (1) to formalize methods for accurate and timely materials tracking and (2) to define data integration needs between sensing technologies, materials ...
Abstract: A progress management in construction projects plays an important role in providing as-built information for project planning, control, cost engineering, and many others. However, progress information has not been collected through objective methods or criteria but mainly based on an individuals own experience or subjective judgment, which results in the limits of consistency, ...
Abstract: Timely temperature control in curing newly placed mass concrete is one of the major factors in forming quality concrete. Quick action is necessary to ensure proper designed strength of concrete and avoid cracking when the temperature of the concrete constantly changes. Generally, an automatic recording thermo-hygrograph is used to measure ...
Abstract: In one construction production process, a huge quantity of data is used and it has complicated relation among companies and systems. But the system environment which associates it is not established by the present construction production. Therefore, when the event which blocks a process plan occurs, great cost occurs in change of a ...
Abstract: Ministry of Economy, Trade and Industry of Japan had run an R&D project on humanoid robotics since 1998 for five years. In the first two years, platforms for humanoid robotics research were developed. In the next three years, researches were carried on for five different applications. We joined a group of the ...
Abstract: The NIST Construction Metrology and Automation Group is researching structural steel pick-andplace operations using a robotic crane coupled with sensor data distribution and construction component identification and tracking systems. This paper outlines new developments in this research including the addition of an automated gripper mechanism for RoboCrane and 4D-CAD sequenced multi-component placement. In addition, ...
Abstract: Localization is one of the most important issues for mobile robots since all tasks are commanded to a mobile robot based on the assumption that the mobile robot knows its position. Even though non-probabilistic techniques are faster than probabilistic approaches, those are sensitive to measurement errors and a mobile robot may lose its ...
Abstract: The recent use of information technology (IT) has effectively promoted integration of fragmented information under the distributed construction environment. However, to date, many Internet based system for online project collaboration solutions do not provide standard formats in transmitting contractual documents and project-related information specifically for public projects. This paper provides ...
Abstract: This paper describes an implementation of the Integrated Construction Process Management System, which includes manufacturing process management features for building parts, and also includes construction process management features at construction site.
Abstract: A daily report is one of the critical documents in construction projects, since it helps them keep track of various as-built information such as task performed, manpower, equipment, and material used on a daily basis. Despite the important role in progress management, the daily reporting process is time-consuming, and the representation of task ...
Abstract: Current study of material management on construction site insists that the ratio of material handling costs to total project costs varies in 30 to 80% depends on the type of construction and the cost of materials [1]. Site layout planning and material management are fundamental to reduce materials handling and ...
Abstract: Accurate cost estimation in the early stage of project lifecycle is essential for both effective financial planning and cost control of construction projects. Previous efforts by the research team have developed a Web-based Intelligent Cost Estimator (WICE) system. This paper describes a further step of WICE research to develop a special-purpose web agent for ...
Abstract: The FIATECH Smart Chips project, in conjunction with Shaw Pipe Fabricators and Fluor Corporation, undertook field tests of current RFID technology to determine its technical feasibility for automatically identifying fabricated pipe spools in a laydown yard and tracking shipment through portals. The results indicate the technology could work effectively in the field environment ...
Abstract: Being an integral part of accessing the modern automated system, Auto-ID (Automatic Identification) system is a proven technology of providing a more accurate, detailed, timely and advanced information for architectural operation. Currently, the various technologies that are used for Auto-ID are: barcodes, optical character recognition (OCR), radio frequency identification (RFID), magnetic stripe and ...
Abstract: The knowledge of design experts, mostly tacit, holds tremendous value if made reusable for the right project at the right time. With emerging CMC (Computer-Mediated Communication) technologies, architectural practice has been transformed and faces new opportunities for capturing and reusing tacit design knowledge in a distributed design environment. This paper ...
Abstract: In conceptual design of architectural artefacts, designers from different disciplines work together. Multi-disciplinary collaboration is required when buildings and their construction have a complex nature. If this collaboration is not effective and efficient, it might lead to the construction of buildings that clients disapprove cost too much regarding the delivered quality and extend ...
Abstract: 3D parametric modeling technology was first introduced about 15 years ago, but still only a few sectors in Architecture, Engineering, and Construction (AEC) have successfully adopted the technology in production. This paper reports the second phase of an early successful collaboration project between an industry sector, academia and a CAD ...
Abstract: Terneuzen- On the 14th of March 2003, the Westerschelde Tunnel was opened after a construction phase of five and a half years. The tunnel was constructed using modern technologies which were partially supported by software and other automated equipment. It?s uncommon to use highly automated technologies in construction projects because the unique character ...
Abstract: In construction production field, since various type of disturbance factor is existed, it is difficult to manage related information by using conventional model. In this paper, a new concept of ?Parts and Packets unified architecture? is proposed. Data or information related to a product are carried by product itself and can be handled ...
Abstract: The EU FutureHome project is focusing in the development of new modular building construction with several important features: high quality, variety of designs, mass production, reasonable cost, and etc. To reach this objective three main points can be study: a) integration approach during all the stages of the building design (from architectural design ...
Abstract: This paper discusses the advanced concept of Industrial, Flexible and Demountable (IFD) building. The IFD concept aims to balance the interests of all construction industry stakeholders. The use of industrial building methods for offices, schools and factories has gained broad popularity in the practice. However, the building clients conventional view does not give ...
Abstract: Real-time control of on-site construction is a growing field still in its infancy. A model for automated control was developed, implemented and validated in the field, to verify if Project Performance Indicators (PPI) can be automatically measured and controlled. The concept behind this development is that indirect data ? locations measured automatically at ...
Abstract: In 1997 a development project was started aiming on mechanisation of the process of paving floors with ceramic tiles. Together with a number of companies from The Netherlands, Germany and Belgium and with additional funding from the European Commission the project was carried out by A+ innovations in cooperation with the Eindhoven University ...
Abstract: Equipping engineering machines and trajectory vehicles with automatic and remote control systems is necessary in case there is any environmental hazard for an operator i.e. environment conditions, an impact from fire field etc. It is particularly crucial when there is no possibility for any person to be in a machine or in its ...
Abstract: Articulated wheel tool-carriers manufactured up to 20-25 tons of total weights are wide available on the construction equipment market and have a lot of unique advantages not accessible on Ackerman steering or truck-mounted equipment such as : - for weight up to 20 t high cross-country mobility ? comparable to heavy military tracked ...
Abstract: We report a system for remote control and automatic management of a fleet of earth-moving and construction machines with assisted guidance in earthworks and road construction. The system can be divided into three segments: control segment, positioning segment, data transmission segment. The positioning segment is based on WAAS or classical DGPS techniques. The ...
Abstract: As part of the Future Home project, research was conducted to look into ways of improving the security and develop methods and reliable systems to detect possible failures and to avoid any harm to the machinery and installations and, above all, to the workers in the construction site. The work described in this ...
Abstract: Micro-electro-mechanical systems (MEMS) have been identified as one of the most promising technologies and will continue to revolutionize the industry as well as the industrial and consumer products by combining silicon-based microelectronics with micro-machining technology. All the spheres of industrial application including robots conception and development will be impacted by this new technology. ...
Abstract: For safe and efficient execution using the microtunneling method, it is necessary to understand both buried objects and ground information. The authors adopted an electromagnetic wave sensing system, devised an antenna that can be installed in a microtunneling driving machine with a diameter of approximately ø350 mm, and incorporated an original analysis algorithm ...
Abstract: DOSAT H04 is an integral automatic control system for the production and sales management of premixed concrete in cyclical operation gravimetric plants. This system is a tool that guarantees to obtain an stable quality in the production of premixed concrete, and also to control the material resources and invoicing issues of ...
Abstract: The NIST Construction Metrology and Automation Group, in cooperation with the NIST Intelligent Systems Division, is researching robotic structural steel placement through an ongoing program entitled Performance of Innovative Technologies for Automated Steel Construction. This program, initiated in response to an American Institute of Steel Construction request for a 25 % reduction in ...
Abstract: The Dutch government encourages innovative construction by subsidizing cohesive industrial, flexible and demountable building (IFD) pilot projects. Industrial building concerns the process-related aspects of production, robotization, mechanization, automation, prefabrication, communication, etc. Flexible building involves products that are made in accordance with customers wishes and the possibility to make adjustments when the ...
Abstract: This paper describes a research project of the Dutch foundation for building research, aimed at identifying and describing the key technologies for robotics and automated production systems in the building & construction industry. The project focusses on the dutch building & construction industry (housing & utility buildings excluding civil engineering ...
Abstract: Information about products for the construction industry is increasingly often provided to designers in digital ways that enable them to apply the information directly in the design process. Digital product catalogues are provided using various media and formats and several initiatives are taken by the industry and by CAD developers to integrate this ...
Abstract: This paper presents an overview of a computer-based site layout model and focuses primarily on the project setup phase. The developed model has four modules: user interface, database, project module, and layout module. Setting up the project in the proposed model is carried out by the project module, utilizing open architecture concept. The ...
Abstract: To support automation and robotisation for construction, there are many requirements. A very basic one is the availability of the information about the building or structure to be constructed. The information may include the design of all the specialties in the building. The format of the geometry of the building elements should be ...
Abstract: This paper describes the first results of an R&D project Intelligent Bridge carried out in Finland. The aim of the project is to develop new methods for 3-D design of concrete bridges and further connect and bring the design models to the source information of site measurements. A new design concept ...
Abstract: Numeric road construction processes and their parts are today developed worldwide. This paper describes research in Finland, which is conducted with companies using national technology funding in a research and development project entitled Intelligent Road Construction Site. In its entirety, four public research projects and two product development projects are today ongoing. One ...
Abstract: This paper describes the first results of R&D project "Intelligent Street" carried out in Finland. The aim of the project is to develop new measuring and design methods and tools for street design and construction. Usability and accuracy of laser scanning technology was tested in field-tests done in Itäreimarintie street pilot in Helsinki ...
Abstract: The increased use of prefabricated components, the complexity of new building shapes, and the speeding up of production in construction, demand an efficient and precise dimensional control. Meanwhile Information and Communication Technology (ICT) increasingly supports construction, among others, CAD systems and Total Stations, are being used for the purpose of dimensional control. In ...
Abstract: The best sustainable urban development strategy of another country cannot just be copied. Strategies can only be adapted into a real economic, social, political, legislation/regulation and provision situation of the existing state. There is no such thing as a single sustainable urban development strategy to suit all societies and that could be applied ...
Abstract: A characteristic of the building sector is that different actors (responsible for design, production, construction, use) are separated by markets. Those markets hide a lot of information. As an example the production costs of prefabricated concrete elements are considered. One market strategy of a production unit of those components can be to search ...
Abstract: In a construction project, although the completion day of the project is clearly decided, construction schedule is often changed by the weather or the actual progress situation of the project. Therefore, when a difference arises between present state and the master schedule, it is necessary to adjust the construction schedule ...
Abstract: The paper presents a video-sensitive virtual interface used in technological process controlling. The control panels are substituted by this graphical system, with all advantages that can be focused from there. In robotic control are involved many controlling instruments and whole this set can be implemented with some virtual controls such as below description. ...
Abstract: This study endeavors to focus on developing an evaluation method for comparative analysis of process performance before and after reengineering. Business Process Reengineering (BPR) is a relatively recent concept that has stemmed from management and computer science roots. Process performance evaluations are crucial to managers in identifying the benefit of new process after ...
Abstract: Over the last 40 years ever more sophisticated computer hardware and commensurate developments in software have enabled much design to be computerised. More recently systems integration has allowed software to automatically pass data from package to package. This has effectively automated elements of the design process. As with all developments there have ...
Abstract: Industrialization is the aggregation of a large market to divide into infinitesimal fractions the investment in a technology capable of simplifying the production of complex goods and therefore reducing the costs. Simplification is the goal. Whenever the first four degrees of Industrialization, Prefabrication / Mechanization / Automation / Robotics, transfer the tasks from ...
Abstract: This paper proposes a method of pose (position and orientation) fitting of construction components in a construction site for automated handling based on the relation between components (parts) and their information (packets). Robots can acquire the required information of the component via the environmentattached storages, such as RFID devices. When an ID reader ...
Abstract: The primary objective of this research is to realize an adaptable online architectural virtual reality (VR) model whose color attributes can be changed dynamically according to the identified emotional state of the user. We believe that the current approach to developing electronic based design environments is fundamentally defective with regard to support for ...
Abstract: Construction work needs in many cases human sense and decision, and consist in combination of every task and machine. In this aspect it must be effective that an operator can proceed a project while she/he is managing and operating tasks and several machines at a site with just-in-time accurate decision by means ...
Abstract: Project planning is an essential task of project management that is taught in most undergraduate and postgraduate programmes within universities. However unlike in engineering or other technological areas, students in the management of engineering projects will probably not have the opportunity during their study to test and employ the concepts they have learned ...
Abstract: The application of 3D and 4D CAD software is considered to be able to offer possibilities for more consistent project documentation and visualisation, which should eventually enable fail cost reduction. 4D software is seen as a tool for project organisers and project team members to better communicate and analyse schedule information.. In this ...
Abstract: Feasibility studies must cover different disciplines such as need-based feasibility, technological feasibility and economical feasibility. In the present work a comprehensive feasibility analysis model for the use of robots in performing construction tasks is presented. This model is mainly focussed on the need analysis in order to present criteria for decision making. The ...
Abstract: The selection process for a suitable programming environment for construction robotic systems should satisfy a range of requirements identified from both a users and systems point of view. In the present work two different object-oriented programming environments are chosen for comparison, namely MATLAB as an example of text-based programming and LabVIEW as iconic-based ...
Abstract: The foundations of buildings in urban environments are very often piled ones. During earth moving works the sides of digging area have to be supported by sheet pile walls to maintain constant earth pressure conditions against existing foundations. The piles and sheet piles are very often driven by vibratory methods, in which case ...
Abstract: A number of piles should be driven into the ground by a hammering process in order to make the ground under the structure safe and strong when construction companies build a high structure such as building and bridges. It is essential to determine whether piles are penetrated into the ground enough to ...
Abstract: This paper describes the experiences relating to transmission of digital video information from an on-board video camera of inspection wall climbing robots. The decoder is modified in the proposed transmission scheme. The main difference with the conventional scheme is an interaction of the reference frame with the post-processing. If video coding and post-processing ...
Abstract: Over the last several decades, many concrete tunnels have been constructed on roads, highways, and railways. For safety in concrete tunnels, periodic inspections have been conducted using nondestructive testing technologies and techniques. However, non-destructive test cannot replace the visual inspection due to their slow and complicated procedures. For this reason, they have been ...
Abstract: With funding from the NorthEast Gas Association (NGA), the U.S. Department of Energy (DoE) and NASA, Carnegie Mellon University (CMU) has developed Explorer, a long range, un-tethered, modular inspection robot for the visual inspection of 6 and 8 natural gas distribution system pipelines. The robot can be launched into the pipeline under live ...
Abstract: Construction managers need to access the real construction site to manage the construction project. They have recently handled various types of digital information such as drawings, specification, checklists and daily reports. They usually use sheets of paper and/or field notes. As a result, a gap in time and space between the outdoor construction ...
Abstract: Todays information exchange in managing projects are to a great extent supported by information technology. Especially mobile computing potencials can significantly improve the information exchange in construction. This paper addresses some important mobile computing potencials which can help tackle project collaboration and information dissemination problems. Special attention is given to the organizational and mobility ...
Abstract: To improve the availability of reliable information on an arbitrary location in or outside a construction project and to exchange information faster, more efficient and in an interactive way HBG developed the UPIA-device. With this handheld device location based information can be generated on site and can be used interactive by reliable and ...
Abstract: Electronic construction information portals have become popular in recent years but most portals are intended for business transaction processing. This paper describes a web-based construction information portal (e-Portal) intended for use by construction engineers. A functional framework for the portal is presented along with a 4-Tier architecture including the Presentation Layer, Application Layer, ...
Abstract: Over the past decades, construction firms have been using several off-the-shelf telecommunications services to provide the communication means necessary to their mobile personnel on the jobsite. Despite this the traditional telecommunication systems are nowadays offering a wider range of services to the construction industry, but they are still considered expensive and inflexible. This ...
Abstract: This paper presents the design of an XML-based document flow management system, called XDFM (XML-based Document Flow Management), for increasing efficiency in processing documents in construction projects. X-DFM provides four services via Web Services: the document flow services, content management services, authorization services, and message services. The document flow services are designed based on ...
Abstract: The 1990s have seen a technological shift in the construction sector from IT driven solutions to IT enabling ones. Not only IT companies but also construction companies are continually investing, evaluating and focusing on new technologies to create collaborative spaces among different participants geographically dispersed and to share information among partners in the design ...
Abstract: Construction projects are composed of a large number of contractors, subcontractors, and suppliers that comprise the project supply chain. Construction supply chain management as a field of study concerns itself with improving the coordination of these firms to improve project performance along various metrics such as speed, cost, reliability, quality, etc. In order ...
Abstract: In AEC each participant of a construction project (designer, the constructor, etc) takes part in many other projects and each of these groups of participants are probably working in collaborative spaces. What happens then, when for instance the designer must hold as many collaborative spaces as projects he carries on? In the construction ...
Abstract: New technology often drives organisational changes. The influence of Information and Communication Technology (ICT) on modern business is enormous. ICT not only supports improvements in the primary process but, for example, also enables better planning and much improved logistics. Here communication technology is equally or even more important than information processing itself. In the ...
Abstract: In construction, failure of design professionals to consider how a builder will implement the design can result in scheduling problems, cost escalation, delays and disputes during the construction process. The integration of construction knowledge and experience during planning and design is termed here as constructability. Though many design professionals in the Netherlands may ...
Abstract: Risk management in construction encompasses four main phases; risk identification, quantification, mitigation and control. Risk identification has been recognized as the most crucial phase of a successful risk management program. This paper briefly describes a model, designed to automate the risk identification process. The model facilitates the development of an electronic checklist of ...
Abstract: Construction management education, like most education and indeed, most things, is changing rapidly. There is a move towards student centred learning which is intended to allow students to gain knowledge at their own pace and develop transferable skills during the course of their education. In Construction Project control is an essential task of ...
Abstract: Planning in the construction industry, as is well known plays an important part in the successful outcome of a project. How a task has to be dealt with and with which tools is part of the engineers work load and it is in their responsibility to assure that this planned work is ...
Abstract: In this paper an approach for the throughput evaluation of the construction manufacturing systems is presented. The throughput is evaluated with a heap-based algorithm for the Petri nets model of the construction systems. The Petri nets model is a stochastic one, and the firing rate of the transitions are calculated with Markov chains ...
Abstract: More than 200 capital facility projects from across the U.S. have been assessed on the issue of technology usage at the work function level and overall project cost and schedule success. Work functions (WFs) that may leverage project cost and schedule performance were identified. The analyses suggested that degrees of technology ...
Abstract: This paper will propose to investigate results obtained from automated measuring process control of temperature in cement fabrication with the simulation modeling by probability distribution functions and conducted at yield goodness of fit results. The simulations results enable the comparison with the data obtained by automated real-time project process data which ...
Abstract: The conceptual estimate plays an essential role in project feasibility study. In practice, it is performed based on estimators experiences. However, due to the inaccuracy of cost estimate, budgeting and cost control are planned inefficiently. In order to increase the estimate accuracy, this study employed the Evolutionary Fuzzy Neural Inference Model (EFNIM) to ...
Abstract: The profit of Construction Industry has been tremendously reduced for recent years in Taiwan. In order to survive in this difficult environment, Management becomes the key issue to achieve companys target. We need a powerful tool that can help us to handle complicate process such as estimation, bidding, purchasing and site-management in the ...
Abstract: Information technology (IT) that is achieving astounding progress has been applied to rationalize construction project management and is expanding the potential for the automation and use of robots in construction work. But the development of IT based systems has often resulted in cases where it is difficult for multiple systems to share electronic ...
Abstract: Enterprise Resource Planning (ERP) is the latest high-end solution information technology has lent to business application. Enterprise resource planning systems are highly complex information systems. The implementation of these systems is a difficult and high cost proposition that places tremendous demands on corporate time and resources. Many ERP implementations have been classified as ...
Abstract: As a result of the rapid advance of information technology (IT) and development of CALS/EC in recent years, the MLIT (Ministry of Land, Infrastructure and Transport) and other organizations that order public works projects now deliver the results of survey and design work and completed work drawings as electronic data and can now ...
Abstract: Reliable and timely information describing up-to-date performance is a prerequisite for effective management of construction. Existing methods for on-site data collection are labor-intensive, subjective, and the data are frequently available only after activities have been completed. Monitoring of the main lifting equipment on construction sites can provide real-time, low-cost and objective data for ...
Abstract: Practically, the effective management of subcontracting selection within a construction project has been regarded as one of the critical factors for achieving project success. This study takes advantage of IT initiatives of e-commerce to combine with the use of electronic information exchange standards Java XML (extensible markup language) to propose a push-strategic and ...
Abstract: In order to improve the efficiency of construction management, a new methodology-Beauty is presented to develop translatability for construction BPR (Business Process Reengineering) and ERP (Enterprise Resource Planning) by using ARIS (Architecture of integrated Information Systems) and UML (Unified Modeling Language) tool. The Beauty method includes four phases that inclusive of business process ...
Abstract: Building projects which are build in the Dutch Industrial, Flexible and Sustainable (IFD) Building programme usually focus on the design of the project and the application of prefabricated parts. Though this is indeed an important factor in IFD-projects, the paper supports the idea that successful IFD projects rely on three aspects: An industrialised ...
Abstract: Over the years, the art of block laying has been an important factor in building construction. Different cultures and construction experts have developed various styles, giving values to block laying. The major problem in block laying has been traced to the poor productivity of the masons. This has really hindered the construction time ...
Abstract: The development of the Kapla® window frame means a breakthrough in the timber window frame market in the Netherlands. This development is a typical example of a combined process and product innovation, a joint project with the relevant branch organizations. The success of the Kapla® window frame proved that the methodology developed works ...
Abstract: This paper presents a new approach with software agents to support the task of preventive fire protection engineering. Agents are stationary or mobile software components to support the user in his planning tasks according to their specific design. Agents can act autonomously within their environment, which means that they can solve problems without the ...
Abstract: We explore the reasons why advanced information technology applications have not been adopted by the AEC industry. Within the industry, however, some sectors have made significant moves toward adoption of advanced IT. By examining these areas of success, we propose a framework for the incremental conversion of the AEC industry to fully incorporate advanced ...
Abstract: The second release of the CIMsteel Integration Standards (CIS/2) has been endorsed by the American Institute of Steel Construction as the standard for the electronic exchange of structural steel project information for the North American steel design and construction industry. Derived from the deliverables and experiences of the Pan-European Eureka CIMsteel Project and published ...
Abstract: The use of project website and web cam technology in the construction industry is limited to providing basic information about the project and 24/7 pictures of the site. This paper discusses the promises of a site-based website that serves as the central hub for real-time communication, monitoring, and control in building construction. Such a ...
Abstract: Building market has been shortened for last few years and tremendously affected the construction profit in Taiwan. In order to survive in such abominable environment, people have put many efforts on construction methodology, materials, budget planning, and strategy alliance. However, to properly enhance the construction management is the key issue to raise company?s competition. ...
Abstract: The construction scale is growing rapidly; therefore, to subcontract is a common style in Taiwan?s construction industry. Selecting appropriate subcontractors is a key to assure the success of a construction project. With different environment, construction project usually invoke complex attributes. We need a good tool to help engineers to pick the best selections during ...
Abstract: During the construction phase, participants in a multi-contract project acquire external real-time scheduling information from other involved parties and use this to make appropriate decisions in regard to project control. There are two major obstacles to project participants gaining efficient access to external information in a distributed data environment: (1) the variety of ...
Abstract: The Digital Library Initiative (DLI) concerns itself with the automatic creation, organization, and indexing of complex collections of data. With its own wealth of data types, the construction industry pushes the boundaries of the current technologies, especially with regards to automatic archival of construction project information. Many issues unique to the construction projects, such as data provenance and ...
Abstract: The initiative of implementing Internet-based solutions for the integration of the supply chain of materials will not succeed if there is not assurance of collaboration and communication among the parties in the construction business. Neither EDI nor web-based supply chain applications can facilitate both the process integration and flexibility required by the construction ...
Abstract: This paper presents the findings from the design and construction of the Helsinki University of Technology Auditorium Hall 600 (HUT-600) in Finland. Running simultaneously with the construction project, an international research partnership extensively documented and analyzed the use of product modeling and interoperability standards for information exchange. The project team improved design cycle times and ...
Abstract: Uncertainties make construction dynamic and unstable, mostly by creating non value-adding change iterations among construction processes. Particularly, when a project is fast-tracked without proper planning, those change iterations can cause the disruption of the construction process. For this reason, to effectively handle fast-tracking change iterations involved in fast-tracking need to be identified, and the ...
Abstract: High quality modular construction is one of the solutions for the fast growing need for affordable high quality housing in Europe, which can not be solved by conventional building technology. The software environment for automatic modular construction AUTMOD3 has been developed, by University Carlos III de Madrid, in the frame of the European Union ...
Abstract: Project cost becomes increasingly variable if many cost items for a construction project are correlated, and this can increase the uncertainty of completing a project within a target budget. This work presents a factor-based computer simulation model for evaluating project costs given correlations among cost items. Uncertainty in the total cost distribution of an ...
Abstract: This paper describes a computing environment, called WorkMovePlan, that supports the exchange of data pertaining to resources shared between multiple production units and between multiple projects. It presents issues related to the generation and management of this data exchange and the development of a distributed, multi-project scheduling system that is deployed in industry practice.
Abstract: An industry-wide survey was used to collect project data from more than 200 capital facility projects on the issue of technology usage at the work function (WF) level and overall project success. Findings pertaining to associations between project success and technology usage at the work function level are discussed. The project success variables analyzed ...
Abstract: Construction is generally believed to be a fragmented industry and increased integration and coordination among different processes and parties is considered by many experts as one of the ways that can resolve most of the problems created by fragmentation. Process inefficiency and a lack of effective quality control in the products of construction ...
Abstract: Today, most of the construction companies are using computer-aided softwares for cost estimation and cost control. The cost estimation is done before the construction begins while the cost control is performed during the construction period. The organization which controls the cost could be different from the organization which prepares the cost estimate. Moreover, ...
Abstract: De Bolder (?The Bollard?) is a 42.5 metre-high building with a circular cross-section of 30 metres and a weight of 25,000 KN. It was built in an industrial plant, transported a considerable distance across water, subsequently put ashore and placed on a foundation. This study focuses on the differences in construction methods and ...
Abstract: This paper briefly describes a model, designed to automate data acquisition and analysis for planning and scheduling highway construction projects. The paper briefly describes the proposed model, and focuses primarily on its automation aspects. Geographic information systems is employed to analyze spatial data and estimate cut and fill quantities. The model also stores activities ...
Abstract: This paper begins by introducing the developmental work carried out within the scope of the OSYRIS project, in the aim of proposing a new IT infrastructure for road-building sites and by drawing attention to the need for an electronic connection between paving operations and the asphalt mixing plant. The set of system specifications required to satisfy this connection is ...
Abstract: The ability of company managers to respond to variations in performance in construction projects is severely limited by the time delay common in existing information and control systems in reporting schedule, budget and quality deviations from plan. We propose a system for interpreting data acquired automatically by monitoring the activity of major construction ...
Abstract: The Dutch government encourages innovative construction by subsidizing cohesive industrial, flexible and demountable building (IFD) pilot projects. Industrial building concerns the process-related aspects of production, robotization, mechanization, automation, prefabrication, communication, etc. Flexible building involves products that are made in accordance with customer?s wishes and the possibility to make adjustments when the building is in ...
Abstract: The manufactured housing project FutureHome, which received major funding from the European Commission, has developed the engineering know-how to create affordable, high quality, cost effective manufactured housing, with a customer focus that takes account of diversity of styles, designs, materials and locations. The provision of housing to an acceptable standard is becoming an ...
Abstract: While current CAD (Computer-Aided Design) systems provide a variety of data representation schemes (e.g. wire-frames, surface, and solid modeling) and data exchange protocols, they fail to address automation issues in retrieval of building information to be used in different AEC (Architecture, Engineering, and Construction) applications. In these CAD systems, topological information (also known as ...
Abstract: The performance of engineering activities has significant impacts on the successfulness of implementing industrial construction projects. Improving engineering performance can lead to better project outcomes. Previous studies on engineering performance improvement have either focused on the use of certain techniques or products, or looked at specific engineering processes or areas. There has been a ...
Abstract: Automation as pertaining to the construction industry is the use of mechanical and electronic means to achieve automatic operation or control to reduce potential exposure, time, or effort while maintaining or improving quality. Contractors utilize automated technologies on projects as a means of saving cost, reducing project durations, improving quality and consistency, and ...
Abstract: NIST is working directly with industry to improve repair and conversion operations of ships in dry dock. This work allows transfer of technology to construction and other industries requiring worker-access to large, external surfaces with minimum footprint and maximum system rigidity and control, while augmenting conventional suspended-scaffold systems and moving toward more autonomous large-scale ...
Abstract: This paper presents an analysis of various natural and civilization disasters being angled as possibilities of usage of the remote control or autonomous machines. There are determined the requirements for such a systems of theses vehicles or machines which are able to remove effects of natural disasters and local military conflicts or terrorist ...
Abstract: The labor intensive construction industry has a very high accident rate. One of the key reasons for this is the exposure of workers to a hazardous environment such as heights, confined narrow spaces, and exposure to health threatening fumes, dust, and noise. Tele-robotic operation, which allows an operator to control a mechanical tool from ...
Abstract: This paper introduces the statistical error modeling approach for a computercontrolled large-scale manipulator (LSM). The LSM is sufficiently representative of several types of construction equipment to be able to serve as a general test bed. In the analysis, three factors which are measurable in real time: distance, hydraulic pressure, and payload, were varied ...
Abstract: The NIST Construction Metrology and Automation Group, in cooperation with the NIST Intelligent Systems Division, is researching robotic structural steel placement as part of a project to develop an Automated Steel Construction Testbed. This project was initiated in response to industry requests for advanced tools and methodologies to speed the erection of steel structures ...
Abstract: This paper presents a critical analysis of the economic impacts of past, ongoing, and planned research of BFRL?s construction systems integration and automation technologies (CONSIAT) program. The CONSIAT program is an interdisciplinary research effort within BFRL to develop key enabling technologies, standard communication protocols, and advanced measurement technologies needed to facilitate the delivery of ...
Abstract: A shortage of skilled labor exists in the construction industry. Fortunately, advancement in construction equipment and material technologies, along with modularized components and estimating and scheduling strategies have offset the shortage of skilled construction labor. The construction industry has witnessed a drop in real wages since 1970. Decline in real wages may be ...
Abstract: Understanding how the building design influences construction costs is a challenging task for estimators. Estimators must recognize the design conditions that affect construction costs and customize the cost estimate accordingly. Estimators have different preferences for how and when to adjust a project?s activities, resources, and resource productivity rates that form the basis of ...
Abstract: Construction zones are geometric units of work in the construction planning process. Using construction parameters and geometric properties, construction zone generation mechanisms change the level of detail of the 3D geometry and corresponding activities of the planned project. We have defined and implemented a set of mechanisms for construction zone generation. Decomposition provides ...
Abstract: Flexible extension walls - watched on a long-term-use - have lower costs and are more economical and especially more variable compared to convenient post-and- beamstructures. Because room requirements ? mainly in office and administration building ? change faster and faster, an extensive potential on future markets for these technologies exists
Abstract: The work described in this paper is the follow-up of the first analysis presented in the previous ISARC on the same theme. The paper start by recalling the background with is the ISO TC-127 WG2 standardization initiative. Then he applies a basic logical model of site information system for civil-engineering sites to various existing or under development ...
Abstract: This paper proposes a method of configuration of database system for parts oriented construction. In parts oriented construction, robots acquire information related to the tasks from the server through ID attached to the construction components. This system aims (1) simplification in motion planning of the construction robots using information attached to components, (2) ...
Abstract: To facilitate information standardization and sharing in Construction Industry, this paper presents a simple but effective approach that maps the UML (Unified Modeling Language) object-oriented information model related to a construction project to an XML schema, then to a Relational DataBase (RDB) schema. First of all, the mapping between UML model and XML schema ...
Abstract: Digital image processing has been prevalently adopted in different areas. In the construction field, image processing has been used for defect detection on steel bridge painting and underground sewer systems. However, non-uniformly illuminated images always cause recognition problems and affect the accuracy. In order to resolve these problems, the neuro-fuzzy recognition approach (NFRA) was ...
Abstract: This study offers a method for creating a representation of an on-going construction site by using a geometric approach. The representation includes the definition of 3D data between the design and construction stages. A method is proposed for using a 3D long-range laser scanner to retrieve information on site occurrences, in order to ...
Abstract: In large-scale construction sites there are constant needs for rapid recognition and accurate measurement of objects so that on-site decisions can be made quickly and safely. Current methods involve full area laser range scanning systems that can produce very detailed models of a scanned scene, however the computational and data acquisition time that is ...
Abstract: Precast concrete material suppliers are responsible for the components that they manufacture from casting until up to 25 years after installation. To effectively manage the production and storage at a the production facility, to streamline the construction process and to quickly repair a component should there be a problem, information about components must ...
Abstract: Although the universal definition of MEMS product possesses a number of distinctive features, they are miniature systems involving one or more micro-mechanical components or structure. Infrastructure assessment has recently addressed an important field for MEMS application. For example, satisfactory laboratory experiment in the area of concrete monitoring has been developed. Although the experiment ...
Abstract: The NIST Construction Metrology and Automation Group (CMAG), in cooperation with the NIST Intelligent Systems Division (ISD), is developing performance metrics and researching issues related to the design and development of a "Next Generation LADAR" sensor that will enable general automation in structured and unstructured environments. This paper quickly reviews the basic physics and ...
Abstract: As of today, the DGPS-based Computer Integrated Road Construction systems for compaction support require high investments (about 50% of total machine cost), mostly due to the high cost of the positioning equipment. Worksite tests show that the majority of the compaction errors are serious omissions of the compaction plan. The article discusses the accuracy ...
Abstract: A flexible on-board data management structure for a construction machine and interfaces between its elements are discussed. The solution, which grants the required flexibility and enables advanced, distributed functions is discussed on the example of the road paving process.
Abstract: A survey of current practices revealed that very little control is normally done in earthmoving management. A model to control road construction projects was developed. The model is based on the concept of automatically measuring performance, by measuring locations at regular time intervals, and converting them into controlled parameters. According to this concept, control algorithms ...
Abstract: To realize the all NO-DIG (trenchless method) operation of conduit installation, NTT developed the microtunneling method ?ACEMOLE? allowing long-distance and curved installations and promoted use of this method. NO-DIG method is not widespread in construction works because its construction cost is not economically compared with opencut method. We developed new ACEMOLE to solve these ...
Abstract: In cold and snowy parts of Japan, most snow is removed from roads by mechanical snow removers, and to deal with roadside conditions and guarantee safe operation, these machines are normally operated by two people: an operator and an assistant. Work is in progress to develop automatic steering systems for snow removers in order ...
Abstract: This paper reports on research related to avoiding collisions in construction sites using differential GPS technology. In this project, the researchers developed and implemented a system where GPS technology was used in tracking a single vehicle and relaying its information to a central server. Using another simulated vehicle, the server evaluated collision scenarios and ...
Abstract: This paper discusses the prototype implementation of a system developed by researchers at the National Institute of Standards and Technology (NIST) for the transfer of real-time on-site metrology and metrology-based data for tracking steel frame construction. The purpose of the implementation is to demonstrate the feasibility of automatically transferring information from the construction site ...
Abstract: Considering the established needs for operator training in the construction industry and vastly improved data communication using Internet2, the feasibility of an effective Internet based training system for backhoe operators is increasing. This paper presents ongoing work on a prototype system designed with the idea that eventually any electronically controlled backhoe can be adapted ...
Abstract: The demand for new buried utilities, such as gas, power and fiber-optic communication lines is growing with new construction, re-construction, and the growth of the communication infrastructure worldwide. Because the machinery for placing the new utilities underground, such as backhoe excavators, trenchers, augers, drills, and plows, don?t ?feel? when they are getting close to ...
Abstract: Rehabilitation of urban infrastructures has received considerable attention in North America, creating a need for automation. Automating the rehabilitation process of various infrastructure facilities is driven by the need for cost reduction, higher quality and improved safety. This paper describes an automated system, AUTO-DETECT, recently developed, for rehabilitation of sewer pipes. AUTO-DETECT automatically analyzes ...
Abstract: For efficiency, construction managers take care of several job sites simultaneously. In order to be omnipresent, we propose a notification of ubiquitous construction management. Here we try to adopt the system, so named the Robotoid Manager, with; · AR system with mobile computers · Message board information system · Multi schedule optimizing · Progress monitoring and ...
Abstract: Frequent assessment of as-built conditions is necessary for active project control during construction. Assessment of as-built conditions involves collecting accurate as-built information and comparing the as-built information collected with given design and schedule information. Currently, different technologies exist for collecting accurate and comprehensive as-built information. The as-built information generated through these technologies is then manually ...
Abstract: Construction is an information intensive industry in which the accuracy and timeliness of information is paramount. Construction projects can experience extensive delays or rework due to information that is unavailable, inaccurate or simply outdated. Handheld computers (HHC) have the potential to solve some of these problems by providing field workers with accurate, reliable ...
Abstract: The design of mobile and wearable computing devices involves decisions about how the user interacts with the hardware and software composing the device. Since applications of, and usage environments for, mobile and wearable computers has varied greatly, it has been difficult to build on previously collected design knowledge. The Interaction Constraints Model described in this paper offers an ...
Abstract: Construction is of great interest for applying practical and theoretical results in the field of robotics. The Economic efficiency potential of using robots is defined by construction quantities, high level of manual work, hard and unfavorable working conditions. Mounting operations are the main focus for the practical use of robots. The lecture describes technological ...
Abstract: The concept of ?ROD?(1) or robot oriented design had been developed during my doctorate dissertation at the university of Tokyo between 1984 and 1988. It has been further developed in order to quickly assemble buildings which can be moved into only 24 hours after the beginning of their construction. Time is money, all ...
Abstract: The CYCLONE methodology has become well established and its six standard modelling elements provide a simple, straightforward tool for the study of various construction operations. Many construction-specific simulation systems employ CYCLONE or CYCLONE-like symbols for system modelling. However, CYCLONE?s simplicity also limits its functionality in model construction operations in terms of realism and accuracy. This ...
Abstract: As the computer supported road construction systems evolve, the issues of compatibility and inter-operability start to play more important role in than the limitations posed by computing resources. The paper discusses modelling methods currently in use and presents a novel, efficient and flexible environment description for on-board systems in this context. The results of ...
Abstract: Personal Digital Assistants (PDA) and World Wide Web (WWW) that are rapidly gaining popularity are fundamental technologies for a vision of information access for anyone, anytime, anywhere. However, there are few applications for on-site engineers to use the Personal Digital Assistants (PDA) in the construction industry. In the view of construction productivity, the ...
Abstract: This paper focuses on non-numerical information such as operational procedures for processing and assembling members used in wooden construction systems and aims at developing a knowledge-based system (KBS) for generation and control of this information. The process involves dividing the building construction system into basic units, defining and describing those units, and then inputting ...
Abstract: Taking advantages of the advanced information technology, more and more construction businesses begin to adopt the large scale information system, such as web-based project management system, Enterprise resource planning (ERP), supply chain management (SCM), electronic knowledge management (eKM) and so on, to improve the management efficiency and productivity. However, it seems there is no ...
Abstract: Skyscrapers and Hi-tech factories are a hot topic among construction industry nowadays. As the function of buildings become more sophisticated, subcontractors of a project are more closely related. It is difficult task for designers to present a 3D construction project at a 2D level especially when the building is full of equipments and ...
Abstract: Transport systems are the essential parts of technological processes of building and provide the spatial and temporal conformation of work of all devices and units of production. Transport systems are not passive elements of structure of production circuit; they affect important indices of work of main transformed units, determining the extent of their ...
Abstract: Tests of a novel concept for tracking construction components were carried out at the National Institute of Standards and Technology. The approach makes use of laser radar and retro-reflective barcodes attached to manufactured building materials. Tests were conducted for various barcode sizes and spacings through a variety of ranges to a maximum of 40 ...
Abstract: The Network Numerical Modelling (NNM) methods was developed to aid in project mapping (representation), planning, analysis and control
Abstract: Enhancing the accuracy of an approximate cost estimate is a critical issue since the estimate ordinarily predicts the total cost of a project with insufficient project information. In order to facilitate the approximate cost estimate process, this paper proposes a computer-based integrated system that enables the flexibility to varying amount and accuracy of ...
Abstract: Advances in information technology (IT) are promoting corporations in various industries to improve their business process. Electronic business is also a current trend for the construction industry. Before adopting more new information technologies in a construction firm, the decision maker should know the firm's present conditions of IT applications, evaluate its real needs of ...
Abstract: This study shows the nature of weather risk with a sample project with different networks. The total duration will change by different networks, the starting month, and the different sites. To analyse how to evaluate the risk of weather, by using Mote Carlo simulation and Neural Network to predict potential delay, this study ...
Abstract: The objective of supply chain management is to quickly obtain real-time information, minimize cost, increase levels of service, improve communication among supply chain components, and increase flexibility in terms of delivery and response time. In the traditional construction industry, construction processes are always labor-intensive, manual, and time-consuming. With the advent of the information technology, ...
Abstract: Basing on the design of continuous free systems with definite frequency spectrum, with cascade structure, the dynamical flexibility of such systems has the alternating: pole, zero, pole, zero, etc. Nevertheless, the frequency with the zero value is always a pole. On the other hand, in the case of systems with cascade structure but ...
Abstract: Construction equipment is rapidly being retrofitted with robotic capabilities for improved control and safety. To operate this equipment effectively, an operator must constantly relocate the equipment and position objects within the work environment. Current commercially available equipment technology does not provide real-time information to the operator and requires costly and computationally intensive computer hardware ...
Abstract: The paper is about a new method, aiming at estimating in real time the compaction degree reached by an asphalt compactor. This method was developed at LCPC in the frame of a European project called OSYRIS (Open SYstem for Road Information Support). This method is based upon various measurements using proprioceptive sensors and a ...
Abstract: Some aspects of systematic design of computer control system for a hydraulic excavator are discussed. A concept of software layers is presented, which can help to lower project cost and to improve the ability of system to be modified and extended.
Abstract: Open System for Road Information Support is an open, supportive system for construction, maintenance and rehabilitation of a road, mainly focused, but not limited to the flexible pavement (asphalt). The project aims towards an European standard for a work documentation and work support system for a road worksite.
Abstract: More and more civil-engineering sites, and especially road construction are experimenting all over the world new kind of systems aiming at improving quality and efficiency of the construction tasks. These systems make profit of the new technologies of information and communication, still rarely used on the sites. Most of them bring partial solutions but ...
Abstract: Adequate economic justification is a key requirement for the implementation of robotic systems in the construction industry. In the present work the concept of off-line simulation is used to provide the user with a rational approach for economic decision making with regard to the use of robotics. The proposed off-line simulation process ...
Abstract: An Internet-based management information system for the logistics of highway construction and maintenance vehicles has been designed and implemented by using Microsoft Visual FoxPro. This presented system is not only useful for the logistics of highway construction and maintenance vehicles but also helpful for the prevention of scandal intentions and activities
Abstract: In surface grading operations the final surface profile depends on the series of preceeding tasks. For example, when the road surface is levelled with the use of a numerically controlled grader, it is necessary to consider subsequent compacting tasks as well, as the final result should include a uniform compaction ...
Abstract: The idea of the automatic handling of the flexible suspended load by cranes working in different air condition has been presented in the paper. The microprocessor control systems worked out for cranes give the possibility to automatic position the handling load in the every point of the three dimensional transport space with simultaneous elimination ...
Abstract: Recently, there is an increasing interest in controlled excavation processes. The modern control software and hardware make hydraulic systems more suitable for enhancement of a large spectrum of human efforts. This is mainly through control of repetitive processes, such as trenching and drilling, requiring constant attention of machine operators.
Abstract: In order to control execution based on data from construction machinery, and thus computerize and rationalize project execution, information integrated construction systems are being developed[1]. Meanwhile, to perform tele-operation of construction machinery, telecommunication systems and mobile network systems for construction are being developed. However, these systems being developed for civil engineering are not compatible; standards ...
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Abstract: The paper describes a rebar constructibility model, which was developed in an object-oriented graphic environment. The model is intended to be used during the design phase to automatically diagnose potential rebar-related constructibility problems (the Diagnosis Module), as well as to offer solutions and implement them (the Correction Module). The Diagnosis Module was implemented first ...
Abstract: To evaluate how the detail design of the building construction system influences the outputs of the system such as the construction steps and the construction period, it is necessary to know the order in which building members are assembled. This paper presents a method for generating and optimizing the assembly order of building ...
Abstract: Automation in construction gained sizable momentum during the last decade and considerable efforts have been made to benefit from this emerging technology in reducing cost and improving quality of work performed in this industry. This is particularly true in inspection and maintenance tasks of infrastructure facilities. This paper presents an automated system for inspection ...
Abstract: Prototype system of virtual construction field was developed in this study. Making the production plan of architectural construction was attempted by using the system. As a result, it was confirmed that the virtual construction field was effective to the making of the production plan.
Abstract: Mark-up estimation involves many uncertain and complex factors making it difficult to model them using conventional mathematical methods. Artificial neural networks (ANNs), which can adapt themselves to training data, have recently been applied to mark-up estimation. However, there are two major drawbacks of this application; firstly, an ANN system is unable to explain why ...
Abstract: The size, shape and slope of pipes are major components of the overall cost of wastewater collection systems. In the past, designers have used charts and specialized rules to determine the size, slopes and materials when designing wastewater collection networks. However, genetic algorithms (GA) provide powerful technique for automating the design and minimizing the ...
Abstract: A study for the Swedish government on a ?design and build? project has examined the underlying process and has found a series of inconsistencies between what is claimed and what appears to have happened. The project could not regarded as having been especially complex. Even so, detailed analysis using computer modelling techniques has shown ...
Abstract: An integrated network is being developed over the next few years for the construction and real estate sector in Singapore to improve its productivity and competitiveness. Electronic plan checking system is one of the IT system of this integrated network. Its aim is to automate the process of checking of building plans for ...
Abstract: Rationalisation efforts in the construction industry are more and more affiliated with the attempt to automate the building processes. This requires mobile systems, which can move themselves independently to their place of work and execute their job there. Apart from the development of suitable planning tools for the application of these systems, their control ...
Abstract: This paper describes the use of radio frequency identification (RFID) for use by constructors as a way to improve the efficiency of construction site operations. An overview of the technology is initially provided. Next, a pilot test related to jobsite material receiving was conducted as part of a Construction Industry Institute research project to ...
Abstract: This research aims to promote accountability in Japanese system of project management including the phases of architectural design and building construction. In introducing automation or robotics into construction industry, Japanese system is often regarded as characteristic one that cannot be accommodated to the systems of foreign countries. It is sometimes taken up as the ...
Abstract: "To err is Human" . The basis of the discussion of the Man-machine Interface is due to imperfection of the human. Any human being make mistakes. Mistakes make at construction sites could be fatal. The management of the safety of the sites is important aspect in the construction industry in ensuring the safety ...
Abstract: Information technology in the construction industry opens new frontiers redefining an internet approach to communication and project coordination. The ongoing exploration of such technologies confirms the techniques of transforming the current process of project procurement, design and construction to enable multiple benefits. An internet-based, collaborative information system can offer benefits such as: · Improved communication · ...
Abstract: This paper presents a quantitative valuation method for automation/robotics investments based on modern option pricing theory in finance. This framework explicitly considers the investments? uncertainty/risk and embedded managerial options. It further aligns the valuation of the investments with the market opinions. The analysis may help construction firms more accurately compute the value of automation/robotics ...
Abstract: Contemporaneous documents are favored in claims litigation or arbitration over any after the-fact proofs like expert witnesses. Each contracting group in a project enterprise creates, manages, and stores its documents, using proprietary methods and systems. This has proven to be an expensive exercise when effecting court-ordered document exchanges during discovery periods. To solve this ...
Abstract: As our drinking water and waste water infrastructure age, it is important to increase the knowledge about the actual status of the infrastructure. Assessment of pipeline condition is becoming a priority with municipal authorities worldwide. CCTV based assessment is the norm, however accurate assessment is difficult to achieve in practice as subtle defects are ...
Abstract: This paper reports on the use of a "Cooperative Ventures" approach to execute a construction project. As demonstrated in this case study, the proposed method is potentially a practical means for project implementation. The effectiveness of this method is examined through a case study in which the project planning and design phases are ...
Abstract: An automated construction system has been developed to reduce the total cost of high-rise reinforced concrete building construction. It has been already applied to three condominium construction projects in Japan and one office building construction project in Singapore since 1995. Application of this system ensures good quality, improves the working and environmental conditions, reduces ...
Abstract: This paper focuses on a new application for simulation as a tool specifically designed for holistic evaluation of project functionality within a life cycle project management framework. The authors describe a methodology for development of the aforementioned simulation tool, dubbed as DSMS (Dynamic Simulation Modeling System), devoted to Project Management decision making. The ...
Abstract: Two types of biologically-inspired underwater robotic systems are introduced for underwater deployment and inspection purpose: 1) Amoebot, a shape-changing robot that mimics the swimming action of microorganism; 2) RoboGlider, an under-actuated 1DOF robotic platform whose locomotion is inspired by the phenomenon of falling leaf or paper. The movement of those underwater systems can be ...
Abstract: General contractors, private owners, and public agencies are often faced with a problem; how to evaluate bids from competing construction organizations with respect to important, but difficult to qualify variables other than the lowest price. The paper presents a methodology for comparing the qualifications and work capacity of construction firms using a fuzzy logic ...
Abstract: One of the most important aspects of running a construction business is cash flow management. More and more construction companies collapse due to deficiency of liquidity to support their daily activities instead of the failure of the engineering knowledge and skills. Hence, the need for cash flow management has become the ...
Abstract: The main difference between industrial robots which are applied to the prefabrication of building components and the construction robots which are mostly used for on-site work, is its mobility based on interaction with the environment through sensors and built-in intelligence, and the need to cope with the specific conditions on ...
Abstract: This paper will describe the development of an improved methodology for accurately analyzing and interpreting data regarding the condition of sanitary sewer systems. The proposed methodology enables fast and accurate assessment, which is significant in building a sewer condition database for asset management. The inspection system obtains optical data from the ...
Abstract: The global shortage of quality housing, with governments pushing expansion of their house-building programmes, points to an opportunity for the development of factory housing systems and the effective use of prefabrication. In recent years, numerous construction companies have experimented with the use of off-site production for housing, most of them resulting no significant cost-savings. ...
Abstract: Several new information and computing technologies in construction engineering and management are discussed. They include neural networks, object-oriented programming, concurrent engineering, Internet computing, and collaborative computing. Examples of research performed by the author and his associates in recent years are described briefly.
Abstract: This paper discusses examples of the latest developments in robotics technologies in the United States that may be of interest to construction robot systems developers. Both theoretical, far reaching research such as collaborative robotics as well as hardware systems oriented R&D is included in the paper. Examples of the latest industry initiatives and consortia ...
Abstract: There has never been an industry-wide benchmarking study of the levels of technology used across the various life-cycles or phases of projects. The primary objective of this study was to measure the extent to which task integration and task automation (IA) technologies are being used in executing capital facility projects, including those used ...
Abstract: Constructed facilities or buildings are comprised of many components, each of which is usually represented in product data models by their spatial information including three dimensional (3-D) geometry and topology. Geometrical data describes the facility components? dimensions and locations, whereas topological data represents information about spatial relationships (e.g. connectivity, adjacency, containment, etc.) between the facility ...
Abstract: Dynamic nature of the A/E/C industry, multiple project participant, and disconnected communication between project participants make it difficult to develop integrated information systems for the A/E/C industry. This paper focuses on defining of interrelationship between data model and process model for construction project management, as a step toward fully integrated project management. The paper ...
Abstract: The CIRC project has been the first major European project aiming at introducing the benefits of new technologies into the road work sites. After having introduced the project and its functional objectives, the paper describes the two products that were developed, the one for the compactors and the one for the asphalt pavers. ...
Abstract: Information technology and communication technology offer increasingly improved possibilities for automation and robotisation in mobile construction machines. Apart from the electronic systems the intelligent connection of subsystems by a network plays a crucial role. The preconditions for the connection within mobile construction machines were created with the research project "Standardisation of Open Communication in Mobile ...
Abstract: The lack of confidence in the selection of a Probability Distribution Function (PDF) to depict an activity duration has limited the use of simulation as a tool for constructors. The PDF used for a construction simulation should be continuous, limited between two positive time intercepts, and with a unique mode in its defined ...
Abstract: The International IMS IF7 Project has developed a new type of the construction assembly methods for Large-scale Structure in view of the concept, an Innovative and Intelligent Field Factory for a large-scale building construction such as high-rise residences, ship building, etc. in order to improve productivity on construction site. Much smaller investment and earlier ...
Abstract: The effective application of Information Technology (IT) in construction requires a combination of strategic and tactical development. This paper adopted a simplified strategic IT planning framework of four levels---national and government level, professional and institution level, construction enterprise level and construction project level to review the alternative strategies in the use of IT in ...
Abstract: Bridge management systems (BMS) comprise various techniques need to help make decisions on the type of works that need to be performed to maintain the serviceability of a bridge and to extend its useful life. These decisions rely on current and future bridge conditions therefore it is essential for a ...
Abstract: This paper investigates two different project delivery systems in Taiwan and Japan, and presents a pilot study to evaluate the effectiveness of risk reduction of these systems in construction projects. Basically, Fault Tree Analysis is used to assess the probability of risk occurrence and to identify the importance of risk factors contributing to risk ...
Abstract: One of the various strategic decisions that have to made by construction contractors is whether or not to submit a bid for a new project when an invitation has been received. An innovative neural network model is proposed in this paper to help contractors in making their bid/ no bid decisions. This model ...
Abstract: The gradual arrival of robotics onto the construction scene in the past two decades has given rise to a whole new realm of mechanization and management. In order to decline which tasks are best suited for automated construction, the different levels of automation must first be defined. Theses are mechanization, robots, mechanized construction systems, ...
Abstract: Newly developed continuous M-Y mixer has number of mixing units connected in series. When using it in the horizontal way, it fully complies the 2n mixing theory of kneading and lapping mechanism. When using it in the vertical way, mixing work can be done under gravity force only, with the new modified mechanism ...
Abstract: The use of a scanning laser to measure terrain changes due to excavation at a construction site is described. The objective at this phase of the project is to develop the tools necessary to measure terrain changes in real-time. This paper focuses on adaptations required to extend previously developed scanning procedures and post-processing ...
Abstract: Using boom-manipulators for raising high-altitude monolithic buildings with the help of sliding shutterings provides high economic indexes. Using boom-allocators in a combination with the detailed logistics at a building platform causes essential savings of time, that is one of the basic factors both in monolithic construction, and in economy generally. The significant effect brings ...
Abstract: At the present time, electronic data exchange in construction industry is mainly used for the exchange of information related to technical design, most of the time using proprietary data formats from the CAD systems in use. Planning, control and management activities are very often not supported automatically, and standard models to enable their automatic ...
Abstract: High-rise steel structure buildings are generally constructed using tower cranes. But in this conventional method, quality and work schedules are easily affected by wind or rainfall, and there are many dangerous working conditions. The automated building construction system, called ABCS, is new construction method which integrates all-weather warehouse facilities, automated conveyor equipment and centralized ...
Abstract: The diffusion of technology utilisation in the construction industry has not progressed according to expectations; there are many examples of innovative technology (e.g. construction automation, field robotics, video conferencing, web and multimedia technology etc.) failing to achieve satisfactory levels of adoption, practical application and usage if adopted. Many technology projects commenced in the construction ...
Abstract: Traditional business partnerships are changing in response to technology advancements and business innovations. Many companies have already reengineered their internal processes, and now the focus has shifted to their trading partners. With network connectivity, supply chain integration is the core strategic competence that enables many companies to act as one. A supply chain represents ...
Abstract: For the construction industry, the demands for optimization and greater efficiency become particularly urgent when the flow of project information extends beyond the borders of organizations. Driven by the need to attain even greater corporate competitive advantages, many business philosophies advocate the use of ?the power of information technology to radically redesign business processes.? ...
Abstract: The exchange and reuse of the information have become a much more critical issue for the success of the project management in the Architecture, Engineering and Construction (AEC) industry. The appearance of Extensible Markup Language (XML) provides a potentially well-adopted solution to alleviate the pain of data exchange. Based on XML, this research proposes ...
Abstract: Among the most significant factors contributing to projects? success in the A/E/C industry is effective communication. One shortcoming of current project websites is that the published information may be static and does not enable professionals to take advantage of the wide range of functionality available through the Internet. This has generally led to ...
Abstract: This paper presents a prototype VR (virtual reality) system that allows participants of a construction project to immerse in a vivid 3-D environment via the Internet and effectively review alternative building models. Using the system, engineers, architects and other participants of a construction project can exchange project information. Construction sequences and schedules can be ...
Abstract: The successful construction of a facility highly depends on adequate planning, design, and control of the construction process. In an effort to better monitor and control the construction project, the construction industry has been engaged extensively in the development of a new computerized design and management system applying the concept of Computer Integrated Construction ...
Abstract: This paper presents evaluation of BART - Bridge Assessment and Rating Tool, an intelligent decision support tool for analysis of reinforced concrete, pre-stressed concrete and steel/concrete composition type of bridges based on fuzzy arithmetic and fuzzy reasoning. BART relies on data obtained from field measurements and observations on bridges to predict a "safe" window ...
Abstract: In the framework of Halftime a research program of HBG and TNO tests were carried out with GPS measurement systems on different machinery. On two building sites in the Netherlands the GPS measurements were performed with a paver and a piling rig. In the horizontal plane the accuracy of RTK GPS was sufficient ...
Abstract: Current practice of providing an ?As-built? survey as the completion of work should not be the only mechanism for observation of problems in the construction process. In many cases, survey data is available early in a project, but may not yet have been reconciled against the engineering intent. CIAMS (Construction Information And Management ...
Abstract: The construction industry has made active efforts, such as CALS/EC, to realize seamless and smooth data integration during a whole project lifecycle. In the construction stage of a project, an automatic control equipment, which needs only to input design data, would be desirable. Utilization of construction records for quality control and inspection is ...
Abstract: To cope with earthquake-related secondary disasters, city gas utilities in Japan have promoted several countermeasures in the last two decades. Tokyo Gas Co. introduced an earthquake monitoring and rapid damage assessment system, SIGNAL, with 331 SIsensors in 1994, as well as installing automated shutoff valves and intelligent meters. After the 1995 Kobe Earthquake, the ...
Abstract: This paper presents the issue of integrating design and construction in the context of Computer Integrated Construction (CIC). A new approach of a proposed strategic framework using the Modularised Approach is highlighted to overcome the complexity of integrating design and construction whereby such integrated environment need to share data via a central core. Such ...
Abstract: The construction industry has acknowledged that its current working practices are in need of substantial improvements in quality and efficiency and has identified that computer modeling techniques and the use of prefabricated components can help reduce times, costs, and minimise defects and problems of on-site construction. This paper describes a virtual environment to ...
Abstract: The paper describes how modern computer and telecommunications technology has enabled the creation of a piling instrumentation system that integrates seamlessly with the rest of the site and project management processes. The system, called SIRIS, consists of an industrial computer and sensors on the piling rig, a notebook computer used by the site foreman ...
Abstract: This paper presents a computer aided bridge management system (CADBMS) and its implementation in the context of Papua New Guinea. The expert system includes a bridge management information system database (BMISD) and knowledge based database (KBD) logically linking all bridge parameters to the repair, maintenance and rehabilitation (RMR) options. The KBD is written ...
Abstract: Large portion of Kyung-bu high-speed railway in Korea was constructed in the form of bridges or tunnels. Most of bridges were designed to be prestressed continuous concrete box girder type. The precast span method was selected for the construction of prestressed concrete box girder bridges for its merits of good quality, fast construction speed, ...
Abstract: The construction industry is an information rich industry, both in terms of the information generated and exchanged amongst its participants, as well as the information it absorbs from outside sources. The effective management and delivery of information is crucial to the successful completion of a construction project life cycle. Although ...
Abstract: The railway system with its high capacity, low energy consumption, comfort and punctuality now is the main stream of the inland transportation system around the world. The high cost and heavy load of the maintenance work of the traditional ballast track system have attracting the attention of the recent studies. The results of ...
Abstract: To orchestrate future disaster relief operations, the authors had learned from their experience of the Ji-Ji Earthquake that both the equipment and the staffs need to be modernized. Also, to have a better chance to fight disasters, it is obvious that a state-of-art command center built upon the most current technologies is desired. ...
Abstract: The Ji-Ji earthquake was the most damaging earthquake that Taiwan has ever suffered over the past century. In addition to mountain collapses, landslides, fault slippage, bridge ruptures, and roadway buckling, tens of thousands of buildings were also crushed by the powerful force of the earthquake. In the Ji-Ji earthquake, the most serious damaged infrastructures ...
Abstract: In recent years it has become a trend to use the Geographical Information System (GIS) for disaster mitigation and hazard prevention. The GIS can quickly and efficiently process large amount of spatial data and their attributes. When deployed, it is a valuable tool for decision supports and in-disaster responses, and it can facilitate ...
Abstract: Common conduits are indispensable for the populous metropolitans and the advanced industrial parks, such as the Hsinchu Science-Based Industrial Park. The various pipelines in the common conduits serve not only as the nerve system but also the circulating system of the industrial parks. The maltiple functions of the common conduits may affect not only ...
Abstract: Taiwan has been active in construction new railway system in recent years and, furthermore, several old railway systems are undergoing overhaul. The trackwork engineering will be one of the major key to decide whether the railway was successful or not, Now-a-day, All the railway systems in the world are concentrating on improving the trackwork ...
Abstract: This paper depicts the approach of constructing a virtual reality environment for simulating building construction operations. The virtual environment is established to demonstrate the constructability of building during the building delivery process. Particularly, the functions such as navigation of construction sites, simulation of construction operations, and evaluation of construction details will be critical to construction ...
Abstract: The FPLM, Full-span Precast and Launching Method, is selected as the main construction method for the long viaducts in the Taiwan High-Speed Railway (THSR) project. In order to maximize the advantage of this method, ?design for construction? should be emphasized. It means that construction knowledge and experience should be taken into consideration among ...
Abstract: Planning and scheduling is one of the key factors to the success of a construction project. Because of the increasing complexity and size of construction projects nowadays, preconstruction schedules tend to comprise a large number of activities. These schedules often contain unintentional errors and conflicts, and those due to the lack of experience. ...
Abstract: CITIS (Contractor Integrated Technical Information Service) is a standard originated from the U.S. Department of Defense. It defines a set of functions for sharing contractually required digital information between the owner and contractors. This research develops a project-oriented information sharing system, named PIAS (Project Information Acquisition Service), which supports not only CITIS functions for ...
Abstract: Concrete formwork is a labor-intensive and time-consuming operation. Many modular formwork systems have been developed to automate the formwork construction and to improve its productivity and cost effectiveness. Usually, proper planning in architechtual design of building, form reuse scheme, resource allocation (modular form sets, cranes, workers, etc.), and construction sequence is required to ensure ...
Abstract: Information, communication and controlling technology play important roles in disaster rescues. Referring to the needs of a disaster rescue, this article outlines the structure needed for a Monitoring and Supporting System. It is hoped that such a system will improve the efficiency of the Disaster Command Center and the management of field rescue operations.
Abstract: It is found that most road damages triggered by the Ji-Ji earthquake occurred in the Taichung City, the Taichung County, and the Nantou County. The main causes for these road damages are landslides and rockfalls. Therefore, in the emergency roadwork to repair these roads it is not only necessary to remove the debris ...
Abstract: There will be four elevated water towers in Tainan Science-based Industrial Park (TSIP) in southern Taiwan, as this project is totally completed. During the construction of one of the four elevated water towers, it was found that the cost of the scaffolding system could be as high as one fifth of the total ...
Abstract: The article summarizes the overall idea of the study and presented the results of the first stage -- "simulation visualized of construction schedule". At present, we have corresponded and combined the CPM network diagram and the 3D object model for dynamic presentation. This kind of 4D dynamic diagram always simulates the 3D outlook ...
Abstract: At the early stage of bridge design, many factors are considered before determining the bridge's geometrical alignment and length of spans, which have great influence on the construction method and costs. Traditionally, the alignment and spans are determined based on the design engineer's experience. However, the resulting design, though feasible, may not necessarily be ...
Abstract: Besides introducing every kind of implementation of quality control institution leading to automatic management implemented by this Bureau in recent years, the management system also leads in the widening project of the Chungshan ( NH1 ) Freeway executed by stages. By the performance of the standard and systematic quality management institution, we can keep ...
Abstract: Bridges are the most important components in expansive transportation networks. And bridge management systems (BMS) have been developed to help government agencies maintain the bridges in their districts. However, bridge management systems vary with the different bridge types and the different management requirements for each maintenance level. The multi-level framework of a set of ...
Abstract: A management information system for the supervision of highway construction projects has been designed and implemented by using the Microsoft Visual FoxPro. The implemented system is so helpful that the top management officials of the Highway Bureau can fully have all the construction projects under control.
Abstract: The twenty-first century is a century that combines information and communication technology. Through upgrading information and communication technology, messages will be conveyed easily and, thus, affect road-user?s life directly. The Taiwan Highway Bureau engaged in general censorship operation by combing GPS and GIS, and based on geograph information system of highway engineering facilities to ...
Abstract: In order to make the government procurement efficient, transparent, nondiscriminating, and accountable, the electronic government procurement system is the solution. Accordingly, the Article 33 of Government Procurement Law (GPL) provides that the suppliers may use electronic devices to send the tender. This paper demonstrates how the electronic government procurement system works and how it can ...
Abstract: This paper presents a computerized planning approach to optimize substructure construction sequence for medium to high rise buildings in restricted urban areas. Common substructure construction alternatives include traditional excavation and strutting method, top/down method, and ?go over next slab? method. Since different alternative may result in different construction cost and duration, the best alternative ...
Abstract: There are lots of potential hazardous areas in Taiwan due to high-density land-use and construction building. Up to today, every city area in Taiwan is still continuously expending. Natural disasters such as earthquake, typhoon, flood etc. are happened from time to time within all year long. In addition, based on the high density ...
Abstract: The problems caused by debris flows are becoming more and more serious in Taiwan. In order to perform the risk assessment for hazard mitigation, the database of debris flow rivers of Chen-You-Lan Watershed was constructed. The potential factors as well as the natural environmental data of debris flow river and basin were built ...
Abstract: Due to financial constraints of local governments, budgeting public work projects can be highly politicized affairs. But as the economy grows, people are demanding higher standards of government service and want public works projects performed using only objective and scientific methods. This study uses overall evaluation and Delphi methods as well as non-probability questionnaires ...
Abstract: This paper presents the safety performance of one-layer shoring systems of wood and metal post-shores. The test results indicate that the base stiffness to ground of shores is 50 tonnes-cm/rad for wood post-shores and 70 tonnes-cm/rad for metal post-shores. The system critical loads increase with the numbers of strong shores, but are not ...
Abstract: This paper uses the experience from the search and rescue operation at the Dong- Xing Building, which collapsed in the Ji-Ji Earthquake, as a real example to study the risk factors that contributed to the deaths of the residents of the collapsed building. This paper also examines a possible strategic plan to rescue ...
Abstract: Contract Management is an important issue in Construction Industries. We need to exactly discuss every detail, agreement and write them precisely on paper to ensure subcontractors can construct project correctly. In CCMS (Construction Contract Management System), when we key in some necessary information, it can automatically generate the whole contract document. This system can ...
Abstract: This article aims at the needs for bridge disaster-prevention and repairs in Taiwan. It discusses disaster-prevention planning and establishes a Geographical Information System (GIS) database which has the capability of spatial analysis and visual display to form a dynamic real-time disaster-prevention management system. The GIS database contains the bridge inventory data module, the periodical ...
Abstract: The purpose of this paper is to present an application of virtual reality (VR) formats in environmental information management which could have facilitated the retrieval and illustration of damaged site information during Taiwan 921 earthquake. Disadvantages in data collection are listed. The comparison of data types lead to the demand for the collection of ...
Abstract: This is a research funded by National Science Foundation NSC 89-2815-C-032- 012-E The Build ? Operate - Government largely emphasizes Transfer strategy. Officials and academicians. Yet, no successful examples can be found in Taiwan until year 2000.The High ? Speed - Rail. BOT system could be number one case on this island.This paper will investigate ...
Abstract: After the Ji-Ji earthquake, almost all communications were paralyzed. Therefore, the damage reports could not be collected quickly, and the rescue effort could not be initiated responsively. This clearly demonstrated the urgent needs to establish a disaster communication system that serves as the nerve center of disaster mitigation. It requires the design and incorporation ...
Abstract: Reasonable and up-to-date construction cost data is essential for budget making, bidding, and auditing in the construction industry. Generating a construction budget is a highly professional task and usually takes substantial time and man-hours to collect project cost data. Hence, it is always a critical point for the construction industry to set up ...
Abstract: In comparison with the other transportation modes, rail rapid transit already enjoys a higher degree of safety as it is designed with the exclusive right of way and the automatic train control and monitoring systems. Nevertheless, rail rapid transit systems are not free from serious accidents, which often led to human injuries and ...
Abstract: Since 1990, the ROC government has promoted a 10-year plan of Industry Automation to provide guidance for the automation development of various industries. The construction industry is one of them. According to this plan, in the last decade, the government has invested more than US$15 million and adopted tax reduction, interest subsidy of loan ...
Abstract: Current network techniques presume that there is only one logical sequence of the activities in a project, therefore planners need to choose one particular logical sequence of the activities even if there is more than one possible sequence. This may request engineers expend many work hours to update the variable relationships between activities ...
Abstract: In the past decades, several simulation models have been developed to analyze the performance of construction projects and site operations that are fraught with uncertainty. Due the lack of successful practical examples being report, however, the construction industry still has a doubt in using simulation techniques. For this reason, this paper presents a simulation-based ...
Abstract: Design has an inherently iterative nature, especially for multi-disciplinary building design projects. Managing the design process with the consideration of this iterative nature needs to cluster the complex dependencies between design tasks and information delivered between design disciplines and to represent it in a communicable way. This paper uses modified IDEF0v notations to capture ...
Abstract: In the past years, computer visual simulation is more important in many research domains. Architect and developer can easy estimate architectural design in specialized field with tools of computer-aided design (CAD). But it is not enough for urban planning and design. Because a real urban environment must links to other spatial information. Besides, the ...
Abstract: This research has shown the difficulties associated with the design information and the search through the huge design space generated during the design process. This research presents an approach to these problems by utilizing a search process whose concept is derived from natural genetics. Genetic algorithms (GAs) have been introduced in the optimization problem ...
Abstract: A good construction-site layout plan could directly or indirectly save construction cost and improve on construction efficiency; the larger of construction project or higher of construction overlapping is, the more important of construction-site layout is plan. Moreover, today?s constructive automatic technique reaches a specific degree; the application of automatic technique in construction-site layout plan ...
Abstract: Foundation construction process has been an important key point in a successful construction engineering. The frequency of using diaphragm wall construction method among many deep excavation construction methods in Taiwan is the highest in the world. The traditional view of managing diaphragm wall unit in the sequencing of construction activities is to establish each ...
Abstract: Constructability analysis and the resulting adjustments in facility design have a significant potential in improving cost effectiveness of construction projects. However, traditional constructability knowledge acquisition techniques are the key barrier to successful constructability improvement. A new approach to automated constructability lessons-learned documentation and constructability analysis is presented, building upon elements of constructability analysis and improvement ...
Abstract: As the complexity of a construction project increases, the occurrence of changes becomes unavoidable. In addition to the direct impact, a change may also have consequential impact (ripple effect) on the performance of project duration and cost. Built on a schedule network, this paper proposes a model, called LOGIC that uses a logic-based (including ...
Abstract: This study improves the horizontal directional drilling method (HDD) by using an autonomous land vehicle (ALV) with a radio directional finding (RDF) system. The ALV with an RDF system carrying a digital positioning device can locate a moving or static underground drill bit and track it. Not limited to a pre-determined track or ...
Abstract: The purpose of this paper is to introduce the Integrated Construction Management Information System (CMIS) application to typical construction supervision projects. Even though some of the engineers working at the job site have computers to compile their data or handle their documents, it is still not easy for them to transmit their engineering ...
Abstract: This paper introduces how an automatic system for supervision and management of construction schedule was established to monitor the High Speed Rail BOT Project in Taiwan. With the application of P3 and PDA through e-mail, field sites, field offices and headquarters can be linked together so that information can be transferred, shared and updated ...
Abstract: Applying a computerized on-line maintenance effort to decrease maintenance cost and increase maintenance quality is the pursuing objective of modern rail transportation (MRT) corporations. This report aims to introduce the approaches that merges together the MRT operational strategy and the integrated logistics support (ILS) concept into a computerized maintenance management system (CMMS). By effectively using ...
Abstract: Based on the characteristics of highly specialized corporation in construction industry, it's a very crucial and important practice to select appropriate subcontractors to implement specific subprojects. In this research, the overall subcontracting supply chain of a construction project is considered as a global procurement system and an optimal combination of subcontractors can be obtained ...
Abstract: For the past decade, Taiwan?s construction industry has faced several challenges. The shortage of labor, increasing environmental consciousness, the competition of foreign construction firms, and the necessity to increase productivity are among the major concerns. In response to these problems, construction industry was included as one of the many industries targeted to promote and practice automation under the ten ...
Abstract: Aerial photos and engineering blueprints developed in a related database can be used for facilitating construction site management by their distinct contrast features. The contrast would be much more distinguishing through the 3D spatial factors. The 3D spatial factors are mostly from the aerial photos and close range image by means of image ...
Abstract: Programme and resource management are two important factors to the successful implementation of projects in the construction industry. Historically, however, project resources are managed in isolation from the project programme, typically by accounting means. The shortcoming of this approach is they are not ?activity based? and therefore only record the past performance and do ...
Abstract: It is vitally important to maintain the safety of construction of rapid transit systems which usually call for deep excavations in densely populated areas with very poor ground conditions. It is equally important to protect adjacent structures and properties along the routes during construction and instrumentation and monitoring are routinely carried out to achieve ...
Abstract: With numerous large-scale underground construction projects continuously carried out in Taiwan in recent years, a huge amount of excavated soil has been produced. However, legal dumpsites are scarce and the cost of dumping is relatively high. In order to save money, unethical contractors dumped the spoil maliciously into rivers and valleys, resulting in water ...
Abstract: This paper describes the ineffectiveness of current methods adopted by site engineers in processing information referred to or generated during construction. The authors propose a system-- Site Engineer Digital Assistant?that integrates promising information technology (IT) to improve current ways of data processing at construction site. This promising information technology is specified and the structure ...
Abstract: The quality of finished Hot-Mix Asphalt (HMA) pavement is important to owners, contractors, and highway users. Primary factors affecting quality of HMA pavement are material properties, mix volumetrics, compaction energy, temperature, moisture content, thickness of mat, and subgrade support. A systems approach is necessary to control these multiple and often-changing ...
Abstract: In this study developed is virtual and real-field construction management system(VR-Coms) where integrated are virtual construction simulation,planning,scheduling and performance management system to evaluate productivity and safety in virtual simulated and real-field construction.VR-coms offer supporting modules for learning and discovering solutions with objective to manage construction at right speed with improved ...
Abstract: First of all,introducing the topic we would like to describe how information management system for reinforcement of structural concrete has changed since the beginning as a solution for public works,till the last improvement of Schnell and Iproin.Both of them oriented towards building structure with reinforcement assembled on the workshop instead ...
Abstract: An integrated object framework, called BCOF (Building Construction ObjectFramework), for realization of ISO Building Construction Core Model (ISO BCCM or ISO PartJ06) is proposed in this paper to address the multidisciplinary problems of information integration in the AEC (Architecture, Engineering, and Construction) industry. Discussions are given first on both the ...
Abstract: Schedule controlling is a critical task in managing construction projects.However, in practice most contractors do not control and update schedule frequently due to the lack of proper controlling method. In the real construction world. most decision-making rules are not based on the mathematical method, but on the contractor's assumptions, limitations ...
Abstract: A significant problem in construction automation is the difficulty of interfacing and integrating subsystems(eg.sensors,databases,visualization systems) into a useful whole.In this paper,we describe our past and present efforts toward the design and implementation of network protocols to address this problem.Our current design efffort concentrates on communicating,"who.what,where and when"data over internet-protocol(IP)networks,and is ...
Abstract: Motivated by the interest of a civil construction company and the very attractive scenario characteristics for the application of Distributed Artificial Intelligence techniques, we are developing MACIV, a Multi-Agent System for Resource Management in Civil Construction Companies CCCC). This system is based on Distributed Artificial Intelligence techniques that allow a ...
Abstract: After a building has been designed the construction process necessary to make the building also has to be designed. The theoretical framework of the "Construction Plan" has been adapted to our research project in order to structure the design of this process. The crane plan exists in this framework as ...
Abstract: This paper illustrates thr benefits of using 3-D animation in planning crane operations for heavy and critical lifts on construction sites.A methodology for crane selection,location,and on site utilization is presented.The methodology is incorporated into a computer system that integrates a selection module,3-D animation module and three databases,dedicated respectively for cranes,rigging ...
Abstract: In pursuing construction and design concepts apporpriate for the information age,the authors have considered kit-of-parts theory.A kit-of-parts is a collection of discrete building components that are preengineered and designed to be assembled in a variety of ways to define a finished building.Since a well designed component can be mass-produced and ...
Abstract: The production of prefabricated structures implies following certain regulations and applying certain work management in order for the process to proceed within the framework of the set requirements (deadline, costs, building and process quality). The application of inappropriate technology and management eliminates the advantages offered by prefabricated construction. Since the ...
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Abstract: The process of engineering, procurement, and construction (EPC) project execution uses a great amount of diversified information. A means to integrate the various sources of data and concisely display this information is needed. An advanced object-oriented system developed by Jacobus Technology, Inc. and customized by Fluor Daniel, Inc., allows data ...
Abstract: Project work process automation and integration technologies and advancements are emerging rapidly and yet fragmented,limited in functionality and not yet cost-beneficial in many areas.The construction industry's application of these advancements varies widely and is not well understood.This paper proposes a data gathering process and summary metrics that can be used ...
Abstract: Traditionally the contractually required data are delivered with paper format,which could cause many problems such as waste of papers,difficulties in managing documents,error-prone in data processing etc.If the owner and contractors in a construction project do not share the information specified in their contract efficiently and consistently,their communication cannot be effective ...
Abstract: Experiment for teleoperation of a truss structure on engineering test satellite no 7 (ETS-VII) is performed as a part of space robotics missions.Truss is effective for a space structure because of its lightness and compactness.Recently a space robot operated from the ground is expected to construct space structure.This paper ...
Abstract: A major obstacle to the refinement of modem construction engineering practice is the inability of the industry to exactly predict (in some theoretical rigorous manner) the before- the-event performance of construction workers in the execution of particular tasks or to account for the actual method or systems of work employed ...
Abstract: This paper deals with the design study of cable suspended robotic manipulation systems for manipulation with heavy weight objects in relatively large operation workspace. A concept based on three cable winch systems working in mutual coordination is presented. Principal mathematical relations for kinematic and force analysis are shows as well ...
Abstract: This paper presents new ideas for executing interior painting tasks by a robot.A unique end-effector was developed utilizing the advantages of the robotic system by an appropriate work-method.An analysis of the painting task,accompanied by full-scale experiments,was conducted in order to examine the integration between humans and the robot in their ...
Abstract: Accurate and timely identification and tracking of construction components are critical to operating a well-managed and cost efficient construction project.,Establishing standards to support identification and tracking technologies has the potential to enable the construction industry to seamlessly integrate work processes at the jobsite.This paper discusses on-going research at NIST ...
Abstract: During the last years much effort was invested to develop an automated plant for prefabricating masonry elements. Partly automated systems were improved, but up to now none of them can be compared to the automation standards known from concrete precasting plants. In 1996 the first fully automated and highly flexible ...
Abstract: The aim of this paper is to present concepts for the motion control of redundant manipulators in a changing environment. In order to be able to avoid collisions with unexpected and moving obstacles,an intelligent control concept is required which combines the off-line planned paths with on-line sensor information. ...
Abstract: This paper presents a comparison of various ways to use a robotic system for building a wall. This task is analyzed in order to introduce a few optional systems that differ from each other by their level of autonomy and the task allocation between humans and the robot. An economic ...
Abstract: The construction sector has a large number of highly dangerous manual operations related to inspection, assembly and maintenance. A significant part of these operations takes place in large scale environments formed by metallic structures. Specially developed self-supported robots have been introduced for this purpose during the last years. This paper ...
Abstract: Climbing and Walking Robots can be used to resolve some problems of maintenance, inspection and safety ill industry. The first prototypes already developed have proved able to perform tasks in hostile environments and serve as a work platform for manipulators in inaccessible areas. The inspection of storage tanks is a ...
Abstract: This paper discusses a Dumber of key issues for the development of robust, obstacle detection systems for autonomous mining and construction vehicles. A taxonomy of obstacle detection systems is described; An overview of the state-of- the-art in obstacle detection for outdoor autonomous vehicles is presented with their applicability to the ...
Abstract: The problem of stabilization of desired crane position and load at the flexible cable tip is considered. The stabilizing control is linear feedback. This control law depends on the platform position, velocity and integral of this position. It contains also the information about the angle between the vertical and the ...
Abstract: The position control of a load at the far end of a long, non-rigid arm by an actuator at the near end is considered. The actuator must integrate two tasks: position control of the load and active absorption of vibration to steady it in position. A control strategy based on ...
Abstract: Sewerage is a very large and important infrastructure in water industry. Because around 20% of the municipal pipe network is estimated to be significantly damaged it is of high priority to inspect, maintain, and repair public sewers. During the last years mobile robots have been developed to inspect but also ...
Abstract: This paper proposes the navigation system of autonomous mobile robot. The conventional robot was moved in the navigation method based on the landmark recognition. But, the landmark was often lost sight of, as the result the robot's self-position was lost. The authors propose the method that the error that was ...
Abstract: In impedance control of hydraulic excavators the piston position and ram force of each hydraulic cylinder for the axis control of the boom, arm, and bucket can be determined. The problem 'is thus how to find the control voltage applied to the servovalves to track these commands to the hydraulic ...
Abstract: This research is concerned with a construction robot system that uses a mobile manipulator in order to make a large fence made up of concrete blocks. One of problems in making such a fence by a mobile manipulator is the existence of stacking errors caused by traveling errors under nonholonomic ...
Abstract: The provision of housing in Western Europe is characterised by stark contrasts. On the one hand, Sweden considers its housing needs in terms of requiring in the region of 30,000 dwellings per year. Compare this with the UK, where more than two million homes are presently regarded as unfit. Elsewhere, ...
Abstract: The goal of this Brite-EURAM EC research project is to fulfill a need throughout industry for automated robotic systems that perform remote operations on large and complex vertical surfaces and ceilings with far more versatility and task repeatability than has been achieved hitherto. The final system will comprise of a ...
Abstract: The definition of the excavation geometry in concrete removal has a considerable effect on the longevity of the subsequent replacement repair material. Also, when removing defective material, it is important to use methods that do not cause micro-cracking and other structural damage. The hydro-erosion concept, a controlled version of hydro-demolition, ...
Abstract: This paper is about the Computer Integrated Road construction project, which is a Brite-EuRam III funded project, lasting 1997-1999, aiming at introducing a new generation of control and monitoring tools for road pavements construction. These new tools will bring significant improvements in terms of management of the work and control ...
Abstract: The traditional methods for masonry have reached their system limits and cannot contribute to further effectiveness. Further rationalisation can only be achieved by the reduction of labour and construction times. Therefore a certain innovative leap is required by a system approach that combines the already existing construction technologies with new ...
Abstract: Tubular space frames (frameworks with members orientated in 3D) are highly efficient systems from the structural point of view. Designs using such structures are being developed for major bridges. They can provide overall cost-effective solutions, as this form can achieve a much lower weight than that of an alternative conventional ...
Abstract: Construction robot design for reliability is of particular importance due to the robots interaction with the environment and high level of human involvement, which impose additional safety hazards. Many methods tools and approaches exist, however none offers full and exhaustive reliability analysis or the given system. Research presented in this ...
Abstract: Resonance drives are considered with adaptive control for robotics. The use of these drives allows increasing machine's quickness several times and decreasing energy expenses simultaneously 10-50 times, Elements of artificial intellect are introduced into the drives. It has been shown that micro-controller used for adaptive control, can be also ...
Abstract: This paper discusses the various problems which an integrated facilities management system in an intelligent building must deal with in order to optimize the various building services as well as the consumption of energy. Air conditioning control and energy management are covered as fundamental aspects. The PID traditional control system ...
Abstract: Work at the National Institute of Standards and Technology on laser radar imaging of a construction site is described. The objective of the research is to make measurements required in a construction project quicker and cheaper than current practice and to do so without impacting existing operations. This can be ...
Abstract: Non destructive mapping of reinforcement may be needed in concrete elements of old buildings where changes or an extensive maintenance is required. It is needed if reliable design drawings are not available.The mapping will indicate the location of reinforcement bars, their size and depth of cover. The objectives of the ...
Abstract: Different measurement systems have been developed for the automatic, on-line monitoring of the parameters that define the quality of the bentonite muds used in drilling and excavation works: Plastic viscosity, yield value, filter capacity, sand content, and ion content. These systems enable a continuous control of the mud characteristics, so ...
Abstract: The purpose of this paper is to highlight the need for automated real-time project control, as well as to present a model for such control, based on Automated Data Acquisition (ADA). The idea behind the present development is to determine if measuring the location of workers, or other mobile agents ...
Abstract: This paper describes the real-time data acquisition system specially developed for this test facility. This system is able to address up to 256 sensors and synchronise the measuring with the test car position. The layout of the system allows an optimal signal to noise ratio.This communication is complemented with a ...
Abstract: Computerized intelligent systems can simulate human expertise, as well as analyze and process vast amounts of data instantly. This paper presents a hybrid intelligent computerized model for constructed surfaces quality assessment. The assessment of steel bridge coating is used to exemplify the model. The model will automate the assessment process ...
Abstract: In this paper, we propose an improved dead-reckoning method for estimating current position and orientation of the mobile robot using wheel-rotation sensors and a gyroscope. Up to now, pre-identified model is usually used to get more accurate posture from the gyroscope. However, this model can lose its accuracy during the ...
Abstract: Real time interpretation of outdoor scenes for video-surveillance applications is a complex task. These kind of systems are supposed to work day and night, 365 days per year, under changing environmental conditions, variable weather and lighting conditions, with a minimum ratio of false alarms. Video-surveillance systems should be able to ...
Abstract: This paper presents a novel implementation of a low-cost passive acoustic resonator for observing and amplifying inaudible sound produced by a microfork of an insect-like microrobot. The implementation demonstrates all alternative way of finding a simple yet practical, low cost, and effective solution for amplifying sound by fundamental of physics, ...
Abstract: Construction industry is one of major industries in Japan. Although Japanese economy is severe condition in these days, research and development for automation and robotics in construction is still active. Automatcd building construction systems are developed and applicd to actual projects. Many types of automated systems are developed for tunneling. ...
Abstract: The development in the field of construction is being predominantly characterized by increasing shortage of skilled labour. This shortage will have to be compensated for by an increase in the level of prefabrication to be achieved in the manufacture of pre-cast concrete, wooden, steel frame and brick wall building elements. ...
Abstract: In recent years demand for low-cost housing construction to these the following paragraphs are to relate has been increasingly requested by politics and management. A lot of examples have shown that quite a considerable reduction of costs of production can be achieved without loss of quality, and that ...
Abstract: In Construction Planning, it is necessary to select the most suitable construction method for the requirements oy the design. However, as information on the construction method chiefly depends on individual experience, the construction method might not have always been selected properly. In this pap er the overall concept of the ...
Abstract: R&D activities on construction technology in Japan are mainly carried out by large general contractors. Thcy have their own R&D staffs and facilities. Almost all subjects of their R&D are related to the improvement productivity and quality. In this paper I mention about R&D activities on productivity improvement of construction. ...
Abstract: This paper presents the fundamental concepts for automation of assembly processes at interior finishing. First the technological and organizational workflows and influence parameters of typical process chains at interior finishing are analysed. Then, potentials of rationalization utilizing hybrid configurations of automation systems are derived. Taking into consideration the fundamental requirements ...
Abstract: This paper intends to give a short overview about existing climbing robot systems and projects, the techniques of climbing robots and especially a description of the robots RoSy I and RoSy II. Furthermore it shows some aspects and arguments for the use of climbing robots and what climbing robots are ...
Abstract: The efficient and precise operation of heavy machines with coordinated motion in multiple axes requires advanced computer-based control approaches. Furthermore, the increasing complexity of such systems demands for comprehensive user assistance as well as for extensive monitoring. This paper presents a Cartesian control system of a drilling boom for blasting ...
Abstract: The right tower crane operated correctly allows the contractor to build quickly and cheaply. The choice or a tower crane is a complex matter. Many variables have to be discussed at an early stage. The Eindhoven University of Technology is conducting three research progects to develop a set of tools ...
Abstract: The paper is about a novel operator-aiding system, specially designed for the road compactors, in the frame of a European project called Computer Integrated Road Construction". After having recalled the main objectives, which are closely related to the mechanical quality of the road, the paper gives a general overview of ...
Abstract: This paper describes the current progress on the development of an automated Hot Mix Asphalt (HMA) construction system that integrates productivity and material quality to achieve the cost-effective construction operation within material specification criteria. It is a challenging task to analyze HMA operation, as its elements are complex and dynamic. ...
Abstract: The objective of this paper is to discuss why Construction CALS (C-CALS, in short) is needed for complex construction projects and to propose a benefit-cost analysis model for justifying the implementation of C-CALS from the viewpoint of economy. This paper identifies six different Cases of data standardization for the delivery ...
Abstract: Remote maintenance and on-site support of operators and maintenance personnel is becoming increasingly important for efficient use of complex machinery. For enterprises active in global markets. the provision and support of a worldwide service network produces high cost on top of product prices and service cost. Both imply major drawbacks ...
Abstract: Presented is a unified theory df construction robotics based upon the idea of behaviour programmable physical action units and modules. The theory covers both animate and inanimate construction machines and the paper gives examples of the theory's use to model dynamic systems composed of. disparate-form, active agents. Some new ideas ...
Abstract: Simulation and modeling of construction systems has been the subject of much research over the past twenty years however there is still remains a need for a user friendly, high accuracy modelling method that comprehensively represents the complex dynamics and often time varying logics of the field construction process. This ...
Abstract: As a result of automated construction methods, which many construction companies have worked on these days. Consequently, the following construction planning systems are needed: I) the best framework partition plan, 2) the best layout plan of the hardware and the best usage plan of workers at the construction site, ...
Abstract: A real-time control system is needed for measuring and improving productivity and quality in asphalt pavement operations. This paper presents four computer integrated methodologies necessary to develop a real-time control system for asphalt paving operation. These methodologies include: (I) simulation modeling for optimal allocation of resources. (2) automatic truck dispatching ...
Abstract: The current practices on the road construction worksites have begun to change rapidly and fundamentally since the arrival on the market of new real-time positioning systems. These systems mean it is now possible to overcome the main weakness existing on construction sites today, e.g .. the huge gap between the ...
Abstract: This paper describes the development of a control system for shield tunnelling machines. The purpose of this control system is to avoid soil stress reductions during the shield tunnelling process that are due to sub optimal machine control. In the current situation, this sub optimal control can occur because the ...
Abstract: Tensegrity prisms are three-dimensional self-stressing cable systems with a relatively small number of disjoint compression members, invented by Buckminster Fuller. They form novel structural geometries and they constitute a class of mechanisms that have not been previously studied for possible application as variable geometry truss (VGT) manipulators. They have a ...
Abstract: Landfill space is an important commodity for landfill companies. It is desirable to develop an efficient tool to assist space management and monitor space consumption. When recyclable wastes or particular waste materials need to be retrieved from the landfill site, the excavation operations become more difficult without an efficient tool ...
Abstract: In the frame of its research about real-time positioning and control of road construction equipment, the « Laboratoire Central des Ponts et Chaussees, has carried out in 1996 a study to know more about the actual vertical accuracy that a RTK1 GPS2 could reach under worksite conditions. This ...
Abstract: The use of Real Time Kinematic (RTK) GPS has made real-time decimeter and centimeter positioning possible. Standalone GPS, however, does have shortcomings: At least four satellites must be visible at all times to maintain positioning. If satellite view is obstructed, position information is no longer available. When satellites become again ...
Abstract: A good metrology system in the automated environment must. (1) measure the three dimensional position and attitude of any component to a reasonable degree of accuracy; (2) acquire these data fairly rapidly; and (3) be capable of making reliable measurements anywhere on site. A significant limitation for existing surveying systems ...
Abstract: The evolution toward sensors/metrology systems with embedded processing holds great potential for construction automation, provided that effective, standard communications and data-exchange techniques can be developed. Unfortunately, most metrology systems have limited interfaces that slight the communications/data- exchange issues. Serial, hardwired links (e.g., RS-232,422) are a common, low denominator.The ...
Abstract: Imaging sensor systems are inevitable components of intelligent and automated machinery. Imaging sensor systems based on the laser radar (ladar) principle are proposed to provide advanced machine capabilities such as collision avoidance, obstacle detection, object recognition and position determination. This paper describes the adaption of a 3-d ladar camera to ...
Abstract: Traditional scheduling software such as P 3, OPENPLAN and Microsoft Project have been widely used for schedule. planning for various construction projects. However, these software do not employ the effects of rains in the scheduling process. . Thus, two identical projects would yield the same total project duration even though ...
Abstract: Based on our experience, an emphasis in construction scheduling is not always same. Then we surveyed various opinions of construction engineers about construction scheduling. As a result it was clarified that methods of construction scheduling were different in each phase of projects and each type of projects. We classified construction ...
Abstract: The all-weather automated construction system has been developed to reduce the total cost of high-rise reinforced concrete building construction, and was applied to a 26-story reinforced concrete condominium project located in Chib a prefecture in 1995 for the first time in the world. This automated construction system consists of four ...
Abstract: In order to meet the increasingly sophisticated requirements for large-scale construction projects, in 1993, Penta-Ocean Construction began to develop a comprehensive system that would facilitate building construction work in all weather with minimum disturbance to the surrounding neighborhood. We call this system FACES: Future Automated Construction Efficient System. The system ...
Abstract: A variety of improvements have been added to the Shimizu Manufacturing system by Advanced Robotics Technology (SMART) developed by Shimizu Corporation based on evaluation of the results from the system's application in the construction of a building in Nagoya, Japan several years ago. The improved system was used this time ...
Abstract: This research project is a part of IMS IF7 titled "Innovative, Intelligent Field Factory," which is one of IMSresearch projects in Japan. The research program of IF7 consists of the three work packages. In work package 1, particular emphasis will be placed on realization of modularized construction system. Work ...
Abstract: Though the construction industry was one of the first to adopt aspects of Information Technology (IT) in the areas such as drafting and design, its introduction at the site level remains sparse. One of the reason for this is believed to be the suspicions that exists in the industry as ...
Abstract: The majority of automated construction research and development has been bottom-up, from the construction / engineering side rather than top-down from the design end. The first part of this paper is devoted (0 the design of a research programme which seeks to address topics related to the conceptual design of ...
Abstract: The article deals with the operation of robot systems for the onsite construction of residential buildings and their integration in a semi-automated construction process. On one hand the integration and necessary work preparation tasks will be described for a mobile onsite masonry robot developed in the European project ROCCO (Robot ...
Abstract: Automation and robotics in construction field are being undertaken in views of shortage and aging of construction workers and skilled workers, improvement of working environment and maintenance of good conditions free from hard work and danger. In-depth examination has been carried out at alomost all the sites and surveyed as ...
Abstract: In order for construction robots to become accepted on site it will be necessary for them to achieve demonstrable levels of operation safety at least equivalent to and probably higher than the equivalent manually operated system. In order to achieve the required levels of performance it will be necessary to ...
Abstract: The paper describes an underwater climbing robot for inspection of underwater constructions. It contains an overview of design and technical parameters of the robot. The technological module for inspection is considered. Pecularities of underwater application and different transport modes of robots motion to initial working position are presented. Experimental characteristics ...
Abstract: On-orbit assembly technology is a key for future large scale structure construction. For several decades, many concepts of space structures have been proposed and some of them have the idea of Robotic construction systems. Authors have developed a concept of a truss joint system for large scale orbital structures and ...
Abstract: This paper describes a 1,500 metric ton, mobile, remotely operated worksystem that has been designed to excavate and retrieve buried hazardous and low level nuclear waste. The mobile work system includes seven independent, multi-degree-of-freedom, telerobotic excavation tools and four remotely operated, double-lid transfer systems to move the waste through the ...
Abstract: The problem addressed is plastering of walls and ceilings during the construction of apartment and office buildings. The concrete wallls are to be covered by a smooth layer of plaster, a few millimeters thick. The workplace is structured enough that map generation, navigation and motion planning can be performed autonomously. ...
Abstract: An automated CAD/CAM -system for wood frame wall panel manufacture is presented. The paperless plant -philosophy based Computerized Wall Panel -system is blueprint free and utilizes leading edge CAD and Automation technologies resulting in increased productivity, labor savings and increased quality of the end products.
Abstract: The "AMURAD" system developed by Kajima Corporation is so-called "building factory". The first to fourth floors function as a factory where low level construction work is performed utilizing integrated construction information. When one floor is completed, it is pushed up by special computer-controlled jacks. The first application of this system ...
Abstract: This paper will introduce a multi-designer and multi-construction machine system which has a realizeability capacity. It also provides a cooperative creation environment from design activity to prototype construction, which is indispensable for product development and the predictive simulation of complex construction projects.The requirements, the necessary functions and the implementation of ...
Abstract: This research is aimed at developing a seismic measurement based method for estimating pile bearing capacity. By modeling the rigid body motion of the pile-soil system. the pile bearing capacity is analytically derived as a function of mass. natural frequency. damping ratio. and soil quake. Tltis paper presents the procedure ...
Abstract: As one of the studies on automatization in the deep soil improvement method, theoretical and experimental studies were carried out to develop a method to estimate soil properties in real-time during construction. In the theoretical study, the resistance acting on the improving machines from the ground was studied with soil ...
Abstract: This study focuses on developing an automated schedule monitoring system for precast building construction. Erection of prefabricated structural components is the major critical activity for the precast building construction. An efficient lifting schedule plan and control can significantly reduce construction conflicts and project delay. In this research, the system, ArcSched, ...
Abstract: A methodoöogy and several algorithms for interactive motion planning are deveLoped for multiequipment Landfill operations in an automated Landfill system (ALS). A system for establishing ALS is aLso proposed in the paper. To deveLop a multi-truck/multicompactor automated Landfill system, the major probLems can be classified into three principal categories: (1) ...
Abstract: To support the utilization of discrete-event simulation in the analysis and planning of heavy construction operations, this research investigation has established a framework for a more simplified simulation environment. This framework is a resource operation cycle-based simulation modeling approach using an object-oriented information system to support project managers. This approach ...
Abstract: "With an aim of automating and streamlining construction work as well as securing safety, the Ministry of Construction has been striving from 1990 to 1994, for the accomplishment of a general technology development project, 'Development of new construction process technology' that covered an extensive field of construction. The primary ...
Abstract: The Agency of Industrial Science and Technology of the Ministry of International Trade and Industry has started the feasibility study on the new project "Friendly Network Robotics" in 1996. This project is conducted under the Industrial Science and Technology Frontier Program. The project aims at developing technologies to construct human ...
Abstract: This article describes the state of art, relating to automized processes, in different fields of the German construction industry. First the German demands for future construction efforts are shown and the specialities of the German construction sites are presented. Then the actual state of the art of different autornized construction ...
Abstract: Construction automation and robotics research in the United States has been part of the academic and industrial R&D effort since early 1980's. First construction robot and related protptypes were developed in 1982-83. Since then, approx. 10 R&D centers nationwide are engaged in robot hardware development for construction and hazardous waste ...
Abstract: This paper deals with the application of a large range robot for on site assembly operations in the construction industry. The wall erection task, using standard and special concrete blocks, is the main operation of the robot. The assembly process and the robot have been developed under the Computer Integrated ...
Abstract: The handling of complex machines such as redundant manipulators requires ap-propriate control systems in order to make the operating of the system easier and to reduce processing time. This paper presents an advanced control system for a drilling rig used in tunnel construction which is currently under develop- ment in ...
Abstract: This paper proposes a strategy for handling a heavy object by cooperation of a position-controlled robot and a crane with multiple wires. Installation of compliant mechanism is essential to avoid excessive inner forces caused by positioning errors of the robot and the crane. First, the necessary mechanical conditions to achieve ...
Abstract: While advanced construction automation technology undoubtedly has great potential it has not as yet achieved any significant degree of industry use. This paper analyses some of the reasons for this and then proposes a new method for the creation of cost-effective field and project automation systems.
Abstract: This paper describes the most recent work on the development of the autonomous robot excavator - LUCIE 2 at Lancaster. Although the LUCIE project (Lancaster University Computerised Intelligent Excavator) has been running for about five years, in recent months it has undergone a radical change in both system hardware and ...
Abstract: This is a vibratory roller with an automatic compaction data processing functions capable of performing compaction work by monitoring the compaction degree in a nondesttuctive method. The roller is equipped on its main body with a travel-type RI sensor to measure density in real time and sensors to measure the ...
Abstract: The integration of robotics and automation techniques in sanitary landfill operations would dramatically reduce construction workers' exposure to hazardous materials and improve the productivity of landfill operations. The autonomous equipment would provide a system where the productivity associated with waste spreading would be increased. Since there are uncertain job-site conditions ...
Abstract: The open caisson method is used in a wide variety of applications such as the construction of building foundations or vertical shafts and, of the various methods available, the open caisson method has a long history of use in foundation construction. Both the structure of the caisson itself and the ...
Abstract: The pneumatic caisson method is applicable in any type of ground and permits the ground being excavated to be observed directly, hence it provides a reliable foundation. However, since the working chamber is put under high pressure, high temperature, and high humidity, his method requires robust, experienced workers. On the ...
Abstract: It is required for construction to have execution of high quality and high precisionhowever, Today's shortage of skilled workers and aging workingforce is causing a deterioration of quality. Therefore developing new technology for construction sites has become more important than ever before. And we need to promote the spread the ...
Abstract: The "Dredger" was developed as a specialized vessel for improving the water quality of lake Kasumigaura by dredging its muddy bottom ooze. Unlike normal dredging with a dredger, ooze dredging is a dredging operation performed under difficult constraints, namely, removing only the very oozy sludge built up on the surface ...
Abstract: Faced by a need to overcome work force shortage and vanishing skill replacement, a semi-automatic lift-up system of pre-assembled roof floor is developed by Hazama Corporation, which is one of general contractors in Japan. The semi-automatic lift-up system is able to automatically lift the pre-assembled roof floor up along with ...
Abstract: New buildings are experiencing a continuous increase in the sophistication of their building systems and methods of construction. This situation creates a need for a planning tool that is capable of serving one or more of the complex set of activities during the project life phases. Several researchers have devised methods ...
Abstract: Voice recognition technology is one form of the Automatic Identification system. This automatic data coUection through voice has been successfully applied in many other industries and has the potential to be used in construction quality control. Using this technology, the operator can enter information simply by speaking the desired data ...
Abstract: Up to now, the construction industry has not achieved a very high degree of automation. This lack has resulted in a demand for very flexible and automated heavy-duty machines, as well as integration concepts for automated construction sites. The utilisation of Information Technology (IT) in outdoor applications, specially in the ...
Abstract: It is common that the tunnel construction site in the hard rock ground is remotely located from office on the site, making it difficult to manage the construction works real-time wise with high accuracy. Moreover, the current demands for the increases in length, size and depth of the tunnels and ...
Abstract: Design, manufacturing and erection activities of prefabricated units are highly complex, fragmented, time consuming and demand expert personnel. A recent study by the author revealed that the prefabrication industry is highly fragmented, manual intensive and behind other manufacturing based products in terms of information technology and automation. This is causing ...
Abstract: This research effort aims to use a Case-Based Reasoning (CBR) approach for construction planning and attempts to investigate its advantages over traditional expert systems approach. Many expert systems for construction planning have been developed, but the existing planning systems are incapable of dealing with the situations when the required input ...
Abstract: Project planning functions are to establish project activities, their logical relationships and interrelationships to each other, and the sequences in which they are to be accomplished. The process of assigning activities' duration and identifying the start and completion times of activities and project is considered as project scheduling. Project planning ...
Abstract: This paper describes the development of a scheduling prototype system that assists schedulers in managing constraints that are normally encountered in the scheduling of multi-storey building projects. Constraints such as technological constraints, time constraints, resource limitations, space congestion, safety and managerial constraints are treated in this study. The system breaks ...
Abstract: This paper describes research which is underway in the School of Architecture and Building Engineering at the University of Liverpool. The main aim of the first stage of this research is to develop a theoretical model for site layout visualisation. Emphasis has been placed on investigating ways of integrating and ...
Abstract: The study reported in this paper demonstrates an interactive Computer-Integrated Construction system (CIC) with graphic display for custom design of concrete buildings and automated on-site implementation by robotic devices. The developed system utilizes standardized reusable modular forms which are specially designed for assembly and disassembly by robots. These forms serve ...
Abstract: This paper presents a topological model for reinforcing elements that can be employed to generate equipment-level instructions for automated rebar cage fabricating and placing machines. The model presented in this paper supports extraction of information pertaining to hooks and splices in logarithmic running time during the construction/manufacturing stage. In addition, ...
Abstract: The Construction Planning and Manageability Prediction (CM) System builds a master plan and schedule that explicitly represents planned construction methods and resource utilization. The system simulates the schedule and identifies potential risks causing difficulties during construction. An automated diagnosis procedure analyzes the simulation results to identify potential risk factors in ...
Abstract: The Siberian Automobile and Highway Institute presents the results of research on development of the AUTOMATION -EQUIPPED WORKING PLACE OF A CONSTRUCTION ENGINEER (AEWPCE) program package for a personal computer. The complex consists of three main blocks: BLOCK A is the scheduling on the imitation model basis; BLOCK B is ...
Abstract: A new method for detecting underground obstacles, such as water pipes and power transmission cables, during excavation works is proposed in this paper. The studied method is based on the concept of sensor fusion and incorporates of visual information and force sensor data. The resistive force which acts on the ...
Abstract: Most construction work; indoors and outdoors, involves movements. In the development of robots to be used at the construction site, one of their intended functions is movement control, positioning in particular. In the field of industrial robots as well, recent developments incorporate movement functions represented by AGV (Automatically guided vehicle), ...
Abstract: Skilled rough terrain crane operators say that they take many sensory information for getting more precise movements of a machine. The first experiment in this paper reveals which sense is the most important factor for crane operation. By using a 25ton crane simulator, (visual, acoustical and tactile) information of an ...
Abstract: It is a serious problem with the construction industry that there has been a growing shortage of skilled workers together with the problem of their aging. Rationalization of work, labor saving, and safety control through automation of construction equipments have also been desired. The automation of dam concrete transfer has ...
Abstract: Fundamental advances in sensors, actuators, and control systems technology are creating opportunities to improve the performance of traditional construction equipment. New capabilities are being developed as well. These improvements in performance and new capabilities are resulting in better safety and efficiency. However, selecting control strategies can be confusing and measuring ...
Abstract: Self-programming, intelligent, flexible machine systems offer a desirable alternative to high-volume, hard automation solutions in the complex, ill-structured and dynamic field of construction. A theory of construction is developed which shows that the nature of construction requires the capability for problem solving. Highly complex, dynamic problems require a high degree ...
Abstract: Based on conditions in the area surrounding a site, in certain cases constraints apply to the use of cranes in construction. Such cases include sites very close to a road, railway line, power transmission line, or another building, as well as sites where legal restrictions such as civil aeronautics law ...
Abstract: Fatalities caused by industrial accidents in the construction industry have remained level since the first half of the 1980s. The majority of these fatalities are caused by falls, contact between workers and construction equipment, or by overturning construction equipment. This project was undertaken to study the hitting between workers and ...
Abstract: As the construction process moves towards an increasingly automated scenario, the design of fixing systems which can be easily handed by robotic devices becomes an essential factor in the eventual viability of the whole system. This project has studied many common and many uncommon fixing methods, in a survey covering ...
Abstract: There is increasing demand for labor saving and improvement of work environment in today's construction sites, necessarily resulting in more extensive mechanization, robotization and information- intensification for different work steps. Three important technologies supporting these trends are data processing by computer, electronic communications and control techniques. Through the study by ...
Abstract: To realize stable excavation control on unsound ground and linear control along with scheduled lines when excavation operations are performed with tunnel boring machines, etc; driving jack systems have been developed as an application of parallel links which enable us to use position/posture controls with 6 degrees of freedom. This ...
Abstract: In recent years, with the overcrowding of cities in Japan, the use of underground space has become more and more intensive. As a result, the shield tunnelling method has been increasingly used for underground development. Also recently, the diameter of shield tunnels has increased, and the conditions under which the ...
Abstract: We introduced the outline of the remote-control type automated transit system in a paper presented at the 11th International Symposium on Automation and Robotics in Construction, entitled ""The Development of a remote-control transportation system for use in underground space"". This system is used to convey excavated soil, materials and tools ...
Abstract: The automatic segment assembly robot has been adopted on a shield machine used in a subway construction project for a 600m tunnel construction. The robot was implemented successfully and operated throughout the project without having any practical problems concerning assembly accuracy or the time required for segment assembly. Moreover, the ...
Abstract: Automatic segment assembly technology for use with the shield construction method has, as a result of the recent increase in the diameters of shield tunnels, become increasingly important as a way to improve safety and cut labor requirements at shield construction sites, and the development process has now passed from ...
Abstract: The construction process of a NATM tunnel consists of geological data logging and rock mass classification, monitoring of the changes of rock strain and stress, as well as blasting and excavation. Nevertheless, the disadvantages of traditional manual recording of tunnel-related information are: 1) it is difficult to record data in ...
Abstract: The authors describe practical sensor systems suitable for a mobile bricklaying robot for automated masonry construction on a building site. The major sources of error encountered during the automated masonry construction process as well as the required tolerances for the masonry process are described. Based on these considerations, two sensor ...
Abstract: The development of automated construction has been promoted in the construction industry in recent years, and this paper based on the project entitled ""Automated Construction of Exterior Finish Panel"", which was awarded the top prize in the Practical Application Section at the 10th International Construction Robot Symposium, furthers that development. ...
Abstract: For automatizing building construction systems with robots, the WASCOR (WASeda COnstruction Robot) IV research project has been organized since 1992 by System Science Institute, Waseda University. This multi-client research project includes nine general constructors and one construction machinery manufacturer. The purpose of this paper is to report a part ...
Abstract: This paper describes the first installation of advanced CAD/CAM and flexible manufacturing technologies available to U.S. industrialized homebuilders. The production system can produce both interior and exterior wood frame wall panels in an infinite variety of configurations to meet virtually any architectural design need. The paper describes how this production ...
Abstract: The Nagoya Dome currently under construction is a ball park featuring the world's largest single-layer latticed dome roof with a daylight admitting-and-cutting facility in its center. Because of the roofs iron frame having all of its splices connected by welding, the erection of the roof required highly sophisticated technology and ...
Abstract: During the last ten years Removable Modular Building Systems in the Netherlands have made remarkable progress by using mechanization and automation. These are not the only techniques, as logistic techniques, design according to a modular system and standardization of joints, are also used. An interesting question is what designers of permanent ...
Abstract: This article describes a method for analyzing mechanized and robotized production processes on the building site. The method is based on the theory of system analysis, which describes information, material and energy transformation processes. The basic diagram of the Worker-Equipment System was developed for this purpose. The concepts of mechanization ...
Abstract: This paper examines the problem of the development of industrially useful general purpose robotic construction agents and discusses number of key intellectual constructs used to create them. A new abstract form, umbrella notion based around the idea of systems deployment structures is presented. The implications of thinking with this new ...
Abstract: The purpose of the automated, computer-integrated building realization process is to generate, automatically, all the information and the related documents for the design and the construction of a built facility. The paper reviews the concept of the computer controlled realization process and describes the knowledge base of the system employed ...
Abstract: Quality control of asphalt pavements is an important concern of highway agencies and contractors. Compaction is an important step in this process as it leads to an increase in pavement strength and durability. While there are a number of factors that influence the in-situ pavement density, the number of passes ...
Abstract: The first part of the paper gives a definition of positioning in the context of road worksites and stresses the advantages brought by the new positioning systems. A logical classification of these systems is also proposed. One technique in particular which seems to be more promising at the moment : ...
Abstract: Intelligent Vehicle Highway Systems are currently a high-priority area of research and development in many countries and can make significant improvements in mobility, safety, and productivity of transportation systems by utilizing advanced technologies from electronics, communications, and computer science. There are many research thrust areas that are useful to both ...
Abstract: Application of Geographic Information Systems (GIS) in construction disaster relief planning is presented. A case study of GIS developed for Fulton counted in the state of Georgia is presented. The project identifies potential resource allocations and accessible roads network using TranCAD GIS computer program. This model could be used for ...
Abstract: The paper deals with integration of the data processing problems in the complex design construction process, aiming to minimize the total time spent on data processing. Sequence of the basic tasks under observation is: quantity surveying and estimating, drawing up the technological models and calendar plans of Construction (including ...
Abstract: Production budget planning in the building products industry is the process of committing and allocating resources to manufacture building products for 12 months ahead in order to satisfy certain criteria set by top management. It is a highly complicated and time consuming process and demands experienced production managers to handle ...
Abstract: Unlike most civil engineering projects, trenching schemes are not confined to a recognized site but, by their nature, connect distant locations and involve working ina variety of rural and urban environments. In trench construction, one of the tasks for the engineers is to select a suitable route to minimize construction ...
Abstract: The Brawal excavators have original proprietary structure protected by numerous patents. The sliding working accessories enabling optimization of the parameters of cutting and of additional functions, for example exact scarping. Energy-recuperation system decreases the cost of operation and temperature of the hydraulic oil, thus increasing the machines capacity to work ...
Abstract: This paper presents a concept of a microprocessor control system with flexible structure and parameters, designed for steering and positioning working components of machines driven by electro-hydraulic systems. An idea for decomposition of a block structure of the control system was presented, as well as the idea of transposing block ...
Abstract: This paper is based on a research project undertaken by a consultancy company, a research institute, and six construction component manufacturing firms. The goal was to draw up a methodology foe initiating lean production activities in construction component manufacturing, and to verify the potential of lean production in this industry ...
Abstract: In this article we present several important aspects of a software system control. This is designed and developed for a wall assembly robot in an European Espirit III project called ROCCO, RObot assembly system for computer integrated construction. The system consists of an off-line program for planning of complex assembly tasks ...
Abstract: The paper describes the development of the special industrial multi-axis anthropomorphic angular robots, of ALR type their design, computer control and the intelligence. Human interaction and the robot control versus management control ( the management factory control) are also addressed. At the institute of production machines and the systems ...
Abstract: Planning heavy lifts is a time consuming and costly activity. Several systems have recently been developed for computer aided heavy lift planning that increase planning productivity and dependability of lift plans. These systems must handle a wide range and growing volume of both graphical and non graphical data, including information ...
Abstract: This paper presents the results of theoretical analysis of all-wheel drive kinematic discrepancy influence on drawbar pull for wheeled working machines. The research project was undertaken to verify and confirm theoretical solutions. Presented analysis shows possibilities for improvement of wheeled machines and dynamic and energetic as well as exploitational way ...
Abstract: Studies of the use of advanced technology in manufacturing have given clear indication of the need for simultaneous changes in organization and management practices if a successful and sustainable implementation of advanced technology is to be assured. It can also be shown that it is sometimes counterproductive to introduce new ...
Abstract: This paper discusses the dependability of machines with particular reference to construction equipment in relation to increasing levels of automation. Various strategies are presented and their impact on utilization systems. Finally, reducing health hazards and environmental protection are in dependability assessments.
Abstract: In this paper, the author conducted survey on two construction planning processes in an attempt to establish a system of CAP(Computer aided planning) for construction projects. The surveys were followed by a discussion of the structure and characteristics of planning. The author concluded that current systems for computer-aided construction plans, ...
Abstract: Essential difficulties in the operation of a single-bucket excavators is the fact that they are multi-functional machines. They can be fitted out with a range of various working features. Hence, elaborate automatic control system is being indispensible. It makes possible, the flexible co-operation with the operator in carrying ought to ...
Abstract: The aim of this paper is to present the simulation system for analysis of the specialized mobile systems, which are equipped with a human operator supported computer system (on board or tele-operator ). Simulation is performed in real time, using a computer system and a mobile robot. Visualization of ...
Abstract: In order to define the requirements for automation and robotics technologies as applied to the construction industry it is necessary to consider the task structures within which these technologies are to be applied. This in turn implies that any particular task or activity for which automation is to ...
Abstract: Successful robotic and automated systems require a well defined, structured and controlled work environment. It is therefore clear that before automation in the construction process can be effectively implemented, uniformity and clarity of the various tasks to be automated must be introduced. The structuring of the process must be addressed ...
Abstract: This paper provides a comprehensive comparison between two groups of nondeterministic scheduling methods: 1) probabilistic and 2) fuzzy set based methods. A numerical example is used to demonstrate the differences between the two groups of methods. The comparison is conducted considering three aspects: 1) theoretical assumptions, 2) data acquisition and ...
Abstract: For the development of automated building construction system with robots, the WASCOR (WASeda Construction robot) research project has been organized since 1982 by the system science institute, waseda university. The WASCOR IV project started in 1992. The research theme of the wascor IV project is to develop automated construction systems ...
Abstract: The WASCOR research project was organized in 1982 by the system science institute, Waseda university, Tokyo, japan, aiming at automizing building construction by robotics. This is collaborated by nine general contractors and a construction machinery manufacturer. WASCORIV has been working on the automized building interior finishing system. In the symposium ...
Abstract: This paper presents a novel method of obtaining an accurate estimate of the shape of a sewer from a sequence of images captured by a camera moving along its length. An image flow technique is first applied. This gathers information from the whole image plane to produce a global description ...
Abstract: Application of automatic control into compaction equipment is one of the most complex problem compared with other machines used in civil engineering works. This is due to the difficulties in getting proper feedback, consisting of a transfer to the compactor and information on the state of soil being just under ...
Abstract: The tele-earthwork system is intended to ensure the safe performance of a series of earthwork, from the excavation of soil to the loading, transportation and the disposal of excavated soil, through the remote control steered from a centralized control room located away from the working areas, by using a variety ...
Abstract: Automation and robotics have often been mentioned as possible solutions to health and safety problems in construction. Several studies have prioritized automation and robotics opportunities based in part on health and safety considerations. These and other studies conclude that automation and robotics will be most cost effective in tasks that ...
Abstract: This paper describes the need for automation and robotics developments to take effective cogniscence of relevant occupational health and safety requirements and guidance. The latter includes existing and developing standards, together with recent and proposed legislation. It looks at how automation and robotics techniques should be developed to help those ...
Abstract: This is a system that performs travel course control (automatic steering) of construction machines and three dimensional positioning control of working equipment simultaneously and with high accuracy, according to the design plan of the road. This system consists of two blocks a fixed station and a movable station (construction machine). ...
Abstract: A mobile drilling robot has been developed by TNO Building and Construction Research in cooperation with Dutch industries. This robot will be used for drilling holes for, among others, anchor bolts for fastening railway tracks to a concrete foundation or holes for starter bars. One of the design criteria was ...
Abstract: This paper presents the concept and implementation of a task- level instruction system for an autonomous drilling robot used in railway installation work. The research objectives are: to reduce the required programming effort, make more intelligent robot behaviour possible and bring the programming abstraction level to a task- instruction level. ...
Abstract: In this article a concept and first prototype realisations will be presented for a fault tolerant assembly tool and the effects to the other subsystems of the ROCCO robotic system. The tool integrates active and passive compliment elements, gripping devices and sensor systems. The features of the other subsystems such ...
Abstract: This paper reports the progress in research and development of a mobile bricklaying robot for use on the construction site. Its practical and market orientated design has been a key aspect of the project from the start.
Abstract: Nowadays, robotic systems are considered as key technologies for construction automation and a way to increase the productivity of the building process. The efficiency of the robot work could be increased by a suitable high level planning system, whereby the sequence of robot working points, the walls sequence and the ...
Abstract: This paper presents Concplanner, a Computer Aided Process Planning system capable of generating pictorial construction process plans for automated concrete construction. Concplanner provides an efficient user- interface by adopting interactive computer graphic programming techniques. International Standards Organisation Computer graphic functional interface standard PHIGS has been employed to: (1) obtain ...
Abstract: This paper describes a simulator- based decision support tool for manufactures of prefabricated homebuilding components. The Generic Industrialized Housing Manufacturing Simulator (GIHMS) serves as an experimental factory, capable of simulating factory performance under various product design, factory design, and operations management scenarios. GIHMS unique strength lies in its user-friendly WINDOWS-based ...
Abstract: Contractors who repeatedly build the same kind of facilities accumulate experience in scheduling the needed construction work. When parts of a facilitys design are copied from one project to the next, the previously developed schedules could be refused to schedule future work. The aim of the presented research is to ...
Abstract: This paper demonstrates the application of a prior-use evaluation model developed to assist management to evaluate the probable impact of introducing automated equipment on construction sites. Two case studies have been used to illustrate the importance of not only considering the particular project characteristics, when assessing the potential benefits associated ...
Abstract: This paper discusses the creation of virtual reality tools for the detailed planning of construction activities. The development and operation of a prototype interactive construction machine simulator is detailed. A description is then given to the extensions being made to the prototype system to create a generalised construction simulator with ...
Abstract: This paper outlines some of the potential applications of Virtual Reality to a variety of construction problems. It is envisaged that the main role of VR will be to provide a more natural interface to the data being manipulated by computer software. For example, the ability to visualise the state ...
Abstract: The scope and structure of communication between a heavy machines operator and the computerised systems HMOAS (in Polish WORM) implemented to a backhoe excavator are presented. The system user interface employed enables a selected choice of information to pass on to the operator. The interface concept is based on a ...
Abstract: It is argued that the flow process analysis essentially provides two new options for improvement of production: elimination or reduction of non value adding activities (also called waste) in flow processes and increase of output value from the customer point of view. The typical categories of waste and value loss ...
Abstract: The optimum control of a building project is the aim of the supervision of construction in a construction company. In order to get a real optimum control of the cooperation between man, machinery and material at the construction site it is necessary to plan the construction process. A rough planning without ...
Abstract: Various new techniques, such as the multi-layer, block, unit, and lift-up methods, have recently been introduced for the construction of high-rise buildings. The aim of bringing in these new methods is labor-saving and reducing the construction period, and the trend is likely to continue in the future. Little progress, however, ...
Abstract: Before arriving at any decision regarding the use of automated devices to perform specific tasks, it is necessary to consider a variety of factors including, health and safety, the building design, quality standard, labour cost, productivity, the project environment, mobility, available sensors and the like. In short there are three ...
Abstract: One of the main reasons for the slow pace of implementation of automation technology in the construction industry, including construction robots, can be found in the fact that the construction industry has been following the automation development strategy of its predecessor, the manufacturing industry. The economic justification method developed for ...
Abstract: This paper discusses that it is necessary to develop proper methodologies to ensure the stable production rate in a prefabrication factory under the fluctuation of the demand, in order to succeed in the implementation of automation and robotization in the factory. Authors applied the fuzzy theory to estimate the forthcoming ...
Abstract: A collision-free motion planning method for two robots operating in a three dimensional workspace is presented. The strategy for collision avoidance is based on the concept of a collision map which predicts potential collisions between robots moving along predetermined time optimal trajectories. The collision map is easily constructed, can cater ...
Abstract: For automatizing building construction systems with robots,, the WASCOR (WASeda Construction Robot) research project has been organized since 1982 by the System Science Institute, Waseda University. This multi-client research project includes nine general constructors and one construction machinery manufacturer. The purpose of this paper is to report the research ...
Abstract: The objective of ESPIRIT III project n. 6660 RoadRobot Operator Assisted Mobile Road Robot for Heavy Duty Civil Engineering Applications, is the development of a Generic Multipurpose Control Architecture which will be applied to an outdoor construction site consisting of several heavy duty platforms. One of the ...
Abstract: A critical problem in dynamic environments and especially on construction sites is coordinating the use of limited space to accommodate resources and their changing demand for space over time. This paper presents a heuristic model that allocates site space to resources associated with an activity schedule so that no ...
Abstract: The ACE MOLE 1200-M2 is a robot system for constructing small diameter-long distance tunnels with one man control. This is achieved by automating all the construction works from tunnel excavation to lining finish. All aspects of mechatronics utilised in this. This robot system can select free alignment, over a curvature ...
Abstract: The SMART system is an integrated automated construction system which automates a wide range of construction procedures, including the erection and welding of steel frames, laying of concrete floor planks, installation of exterior and interior wall panels, and the installation of various other units under its all weather protection ...
Abstract: To totally mechanize construction work in building production, particularly through the introduction of robots, construction methods that can be carried out by machines must be developed. In developing new construction methods, the characteristics of construction machinery must be carefully considered, and new machines and materials must be developed. Mechanized construction ...
Abstract: A collaborative information system must fit the market, organization, culture and norms of the group it support. In the Architecture/Engineering/Construction (AEC) industry, a computer-based framework for collaboration needs to consider issues such as its application suitability in various project organizations, and the ability to operate under partial knowledge. This paper ...
Abstract: A wealth of information is contained in the proceedings of the ten International Symposiums on Automation and Robotics in Construction [Ref. 1 10]. To date, a catalogued index of this material has not been available, making navigation through these volumes and studies of construction automation trends very difficult. ...
Abstract: Information technology and information management structures are now well established at all levels within the manufacturing industry and supports the use of automated and robotic tools within the manufacturing process. Though the construction industry has adopted the elements of IT, there remains a little penetration at the site level. This ...
Abstract: Due to increased complexity of projects, an integrated information environment is needed. To demonstrate the capabilities of such a system, we choose an implementation in automated shield tunnelling. Automated shield tunnelling applications have increased in popularity due to the increased flexibility and construction safety. These automation machines have proven to ...
Abstract: The effective management of construction drawings is an important provision in the design and construction process, particularly where they amount to many hundreds or thousands. Whilst nowadays the majority of drawings are CAD based and therefore compatible for computer based management systems, there is still little evidence of this being ...
Abstract: A succession of wall climbing robots have been built by the designers at the University of Portsmouth and Portech Ltd. This paper describes the latest machine, SCOUR, which has been designed to inspect and maintain large vertical or horizontal curved surfaces. Machines of this type are used where human ...
Abstract: Productivity is a key issue in the construction industry. It has been forecasted that the labour productivity of the Japanese construction industry should be increased twice in the year 2010, comparing with the present rate. Automation and robotics in next generation construction should try to improve not only productivity but ...
Abstract: In order to maintain a comfortable office environment periodical inspection of the air conditioning equipment is very important. It is necessary to measure the air temperature and the volume of the controlled outlet air correctly from the ceiling air diffuser. The periodical inspection of a large number of ceiling air ...
Abstract: Multi-disciplinary research programmes have been established at Sheffied Hallam University to investigate specific areas of the Information Technology into the Construction industry theme. Interest is currently centred upon the development of suitably robust knowledge-based and related engineering systems for application in non-man-entry (NME) sewer renovation. Initial efforts have been directed ...
Abstract: In the construction industry, both construction and management technology have been developed, as well as industrization, automation. However, many problems were found in the process of applying such technologies for each construction projects in which it is required to move to the different work place and forced to construct at ...
Abstract: The AIBS (ATLSS Integrated Building Systems) program was developed to coordinate on-going research projects in automated construction and connections systems. The objective of this program is to design, fabricate, erect, and evaluate cost-effective building systems with a focus on providing a computer integrated approach to these activities. A family of ...
Abstract: The presented robotic system is based on the idea of Computer Integrated Construction (CIC). This means the integration of all trades and processes from architectural planning to execution of construction work. It contains computer aided design and computer aided generation of robot programs, custom made prefabrication of small building components ...
Abstract: Large-Scale Manipulators (LSMs) are gaining attention in construction automation research because of their long reach and positioning capabilities. A case study based on the Model Plant data compiled by the Construction Industry Institute indicates that LSMs have very high potential in industrial construction. They can be used for pipe, cable ...
Abstract: The modern attempt in the construction industry is to reduce and replace heavy labor and messy activities with ergonomic methods. Placing and compaction of fresh concrete on a building site is one of such areas. Today it is difficult to recruit young people for this kind of work. For the ...
Abstract: Crane and hoist systems can potentially benefit from contemporary advances made in electronics based enabling technologies and control systems engineering. This paper describes the design and implementation of a modular distributed control system for crane and hoist automation in manufacturing and construction. The distributed control platform has been realised using ...
Abstract: Computers are becoming essential tools for integrating design, planning, fabrication, and construction. Computer-controlled construction equipment are poised to receive information from data generated in the design phase. The robotic execution of construction operations, however, depends on complex models for autonomous and intelligent control. This paper discusses the implementation of a ...
Abstract: A number of mathematical and analytical tools are available to assist in risk assessment for industrial and other robots. This paper is concerned with the use of a hazard and operability study (HAZOP) methodology to analyse the range of hazardous conditions and to assess the degree of risk associated with ...
Abstract: The automation and robotics for earth moving machines were introduced to reduce labor cost and increase machines performances, the increment of position accuracy of the excavator bucket obtained by laser and/or automatic control systems meets both objects. Experimental tests and simulations have shown excavating accuracy to be about two centimeters, ...
Abstract: This paper presents a model for managers to use to assess the feasibility of robotising particular tasks on a construction site. A case study illustrates the applications of the model with respect to the use of concreting robots on a construction project. This case study highlights the importance of taking ...
Abstract: Methodology for the economic justification of automated technology has already been developed in the manufacturing arena. This paper discusses the modifications required for application of this methodology to the construction industry. Modifications are necessary due to the industrys conservative nature in adapting new technology, the fact that the construction process ...
Abstract: In recent years there has been an increase in the amount of soil removed from construction sites. Factors contributing to this trend include a steady expansion in construction demand, larger structures, and greater use of underground spaces. In urban areas such as Greater Tokyo, processing of the residual soil from ...
Abstract: The King Fahds extension of the Prophets Holy Mosque in Madinah, Saudi Arabia, is the largest and most complex addition in the Mosque history. One of the most innovative features in this landmark project remains to be the unique twenty seven sliding domes, 18m x 18m each, covering its twenty ...
Abstract: This paper describes the further development of earlier work on wall climbing robots and recent research on the development of control systems, to enable the robots to learn the best strategies for climbing and carrying out various inspection and maintenance tasks on civil engineering and building structures. There are three ...
Abstract: Recently, CAD research has concentrated on shifting CAD systems from the traditional line based structure to a more intelligent and object oriented structure. Most work in this area, however, has concentrated on developing applications for design work, leaving construction phase applications largely ignored. The authors of this paper have begun ...
Abstract: This paper describes the basic research for an underground excavation robot. This robot consists of three system components: the manipulation system, the locomotion system, and the task planning system. In order to keep the operator away from the hazardous worksite, the task should be performed through teleoperation or performed autonomously. ...
Abstract: Frequent changes in the paving conditions of general roads in japan require considerable labor. This demands a heavy work load and a high level of skill to the asphalt paving operators and screedmen, and also affects the work load of subsequent manual operations, such as shovelling and raking. In this ...
Abstract: The 3-Dimensional Modular Unit Construction System involves constructing a) in fixed cycle time using b) 3-D Modular Unit Building Blocks which are assembled at a c) factory automated staging area on the jobsite prior to be lifted into place on the building. This system has great potential to facilitate the ...
Abstract: The use of prefabrication to enhance constructability necessitates careful planning for access of the prefabricated modules within a construction site. Current planning tools are inadequate for representing the integrated information required for planning access. Hence developing a reliable plan using these tools is time consuming. This paper presents a computerized ...
Abstract: Close range photogrammetric measurement is a proven method for the mapping of industrial structures and has been widely employed within the process plant and nuclear industries. Unfortunately the radiological conditions encountered within active parts of many nuclear installations may severely contain any measurement system which depends on photo-chemical imaging. ...
Abstract: TNO Building and Construction Research is developing an autonomous drilling robot. This robot is to be used for drilling holes for anchor bolts which fasten rail to concrete slabs. Special features of the drilling robot are: its high precision and the relative large diameter of the holes it can drill. ...
Abstract: Fundamental cultural differences between industries helps explain why automation and robotics have been successful in manufacturing but have largely failed in construction. In construction there has traditionally been a clear separation between a project design phase and its field operations. In manufacturing engineering design and shop floor fabrication are highly ...
Abstract: This paper focuses on developing an automated site layout system for temporary construction facilities. The site layout of temporary facilities (TF) is an important preplanning task that can either enhance or adversely affect the construction productivity. An efficient TF layout can significantly reduce construction conflicts and improve project efficiency. In ...
Abstract: Increasing research and development in the area of construction robotics and computer-aided-construction has resulted in large number of automated construction equipment applications. Full potential of such construction equipment can be realized by providing the collision avoidance motion planning capabilities. Models used in motion planning can be categorized into two types: ...
Abstract: Space scheduling pertains to allocating the work space to resources associated which activates in a schedule as it changes over time. This is an important aspect of materials management in dynamic environments in which many pieces of equipment, crews, and possibly robots move about, as congestion and interference would seriously ...
Abstract: Today, the three dimensional (3D) solids modeling design technology and the deployment of integrated relational databases on projects in construction industry have provided the opportunity for advancing the level of achievable integration and automation in the design, construction, and operation of major industrial facilities. The key development has been linking ...
Abstract: GEC Alsthom Engineering Systems, Who were required to weld the Main Loop Pipe work as the part of the mechanical erection contract on the sizewell 'B' PWR, where approached by its client to make a significant reduction in the program schedule for this particular task. This paper will describe how, ...
Abstract: Highway spills of hazardous substances expose emergency response personnel and the public at large to the risk of explosion, fire, and contamination. When the spill is of an unknown substance, response personnel must first determine its identity. Problems of human exposure make automated or remotely controlled sampling and analysis as ...
Abstract: In June 1989 CAPSY has been introduced for the first time at the ISARC89 in San Francisco. CAPSY (Computer Aided Positioning SYstem) is intended to be low-cost real-time location toll for construction. Operating in working area with dimensions like 300 by 500 feet it is capable of locating itself to ...
Abstract: In Japan, many large projects have been undertaken such as the 513-hectare artificial island of Kansai International Airport and the about 1,000-hectare offshore development project of Haneda International Airport. In case of civil engineering works involving such a wide area, it is important from the view point of construction management ...
Abstract: Previous research has demonstrated the automation can improve the industrial pipe lifting productivity. However, there is little information on finding how much productivity can be improved in other parts of pipe erection process to coordinate with the productivity improvement in pipe lifting. The processes of piping construction include pipe delivery, ...
Abstract: The self supported segment assembly robot, [O-SERO]*, has been developed through several fundamental equipments and a series of assembly tests in the factory, then applied to a real project. 70 no.s of segment ring (inside diameter: 6.0 meters) where assembled in the tunnel. The assembly process is full automatically done ...
Abstract: This paper gives a comprehensive description of the construction industry in Sweden, such as its magnitude, sectors and activity level. It also describes the development in the construction trade during the last decades both in general terms and in an R&D perspective. This background is furnished to put the ...
Abstract: In facing demands for higher productivity and improved quality the U.K. Construction Industry has been active in R&D in the area of automation and computer integrated construction . Attention has been given to the application of Information Technology to the construction process and in particular in integrating the functions of ...
Abstract: In this paper the current state-of-the-art in advanced automation and robotics in Australia is reviewed. The paper briefly documents the history of robotics research in Australia and identifies the stage in the technology development cycle that has been attained.it is thought that the end of the start phase has ...
Abstract: This paper deals with major tasks to be carried out in promoting the automation and robotization of construction works and with the effects of these advanced technologies when commercialized. The two subjects were derived from a detailed analysis of each category of diverse construction works with respect to : (1) ...
Abstract: The tasks that the construction industry should be accomplished at construction sites today and in the future are the saving labor and the reduction of the construction period.to accomplish these challenging objectives, automatic and robotic construction systems of construction work have been actively by construction industry Japan. However, a basic ...
Abstract: Many construction experts claim that the construction industry must implement automation and robotics as part of an overall program to increase productivity, safety, and quality, and to remain competitive in the face of growing global competition. The limited experience of applying robots to construction, together with conclusions drawn on ...
Abstract: This paper provides a methodology for pre-selecting a limited number of activities for detailed investigation using existing robotic feasibility analysis techniques, such as that proposed by Kangari & Halpin. The QCF Delphi method has been employed to survey a significant portion of a companys site management, in order to determine ...
Abstract: Robotics and construction have at least one common characteristic, both are manifestly fragmented and subject to high levels of specialisation.as such, the sources of information and knowledge necessary to bridge the interface between the two communities is difficult to identify, and effecting comprehension of their technologies and cultures is problematic. ...
Abstract: After a ten year period of development, construction robotics is now more mature than at the very early beginning. Many research have been carried out both in hardware (HW) (design and tests of experimental robots for instance) and in software (SW) (management of robotized construction process for instance).These research works ...
Abstract: There is a need to introduce the application of automation and robotization for excavation and concrete pouring to improve the working environment and to compensate for the labor shortage. Therefore, as an example, we have decided to study on concrete dam construction using the RCD (Roller Compacted concrete for Dam) ...
Abstract: In this report, the present condition of life-line piping construction work has been analyzed. Life-line piping includes water supply, sewerage, electric power, city gas and communication and need of Automation and Robotization in construction work has also been studied. The group arranged the technical problems attended for automated construction system ...
Abstract: The purpose of this paper is twofold: 1) to introduce a new methodology to evaluate facility systems and the application of robotics in facility management operation; 2) to use the methodology to analyze the viability of the application of robotics ins installing polyurethane foam (PUF) roof systems. The Romer is ...
Abstract: In this paper,the development of the three-dimensional survey robot system using a helicopter by radio-control or a semisubmerged low rolling type survey boat for the purpose of mainly labor saving in the management of the output of construction works among the construction of the structures for harbor works and for ...
Abstract: The computer-aided automated design (CAD) system with some new original methods of synthesis of adaptive control system and formulated regulations for choosing these methods in dependence on the features and requirements to the manipulator to be designed are considered in this paper. The peculiarity is that with the help of ...
Abstract: Highway maintenance automation presents substantial opportunities to reduce labor costs, improve work quality, and decrease worker exposure to roadway hazards. A research project at Carnegie Mellon University and the University of Texas at Austin has demonstrated an automated method for filling pavement cracks that is a cost effective application of ...
Abstract: With the increase in traffic volume in recent years, the snowplow operators have to constantly monitor the surrounding conditions and passing vehicles, and take extreme care and precautions during work. For using the rotary snowplow, which has various operating levers, technique and experience of a high level are required .in ...
Abstract: The industrialization of the building industry has opened a new dimension by the introduction of advanced information technologies offering new possibilities for the building process. Due to the increasing market requirements and nowadays available technological potentials, traditional building production will be replaced by one-of-a-kind computer integrated construction systems, the use ...
Abstract: Todays construction robots are largely machines which simply carry out a construction task. Fully robotized construction must include automation and integration of the numerous management functions together with robotization of the construction task. Important management functions, including planning, scheduling and budgeting, are discussed with a view to their automation using ...
Abstract: Geographic information systems (GIS),a technology for spatial data analysis which is widely used in geology, appears to have significant potential in construction applications. GIS as well as computer-aided design (CAD) are two computerized systems widely used in engineering design and spatial management. Currently, CAD is the most popular tool in ...
Abstract: Artificial Reality (AR) in a new computer interface technology which is expected to have a major impact on A/E/C firms. The system works as an interactive animation system which allows advance simulation modeling in 3-d.Artificial Reality is a display and control technology that can surround a person in an interactive ...
Abstract: The Construction Robotic Equipment Management System (CREMS) has been developed as a response to the need by one of the best known Japanese construction and engineering firms to effectively manage diverse robots on future construction sites. This paper outlines a generic decision logic for comparison of conventional work methods and ...
Abstract: Full automation and real robotization require some kind of built-in intelligence. Automation requires in this way automatic decision-making, based on some kind of artificial intelligence tool. The Department of Construction Management at the Technical University of Denmark has for a number of years been heavily involved in developing this kind ...
Abstract: We are working on a common information model called UNIWBS which uses the work breakdown structure concept .UNIWBS is intended to support project information integration and project planning and control as well. By using the UNIWBS, we are also developing a conceptual knowledge-based expert system called DYNAPACK for generating planning, ...
Abstract: This paper describes the modeling concepts and design of COOP, a new general purpose discrete-event simulation system for construction process modeling. COOPS simulation models are represented by graphical networks that are constructed interactively on the screen using primitive objects, such as activities, queues, consolidation nodes, routers, links, flags, resources, and ...
Abstract: Civil Design Project vary in complexity in recent years. Big Civil Project have been already started for 21st century. It is possible to design structures, which have been difficult to design before, using some high-technology computer methods, e.g. , FEM Analysis System, CAD/CAM system, etc. We are sometimes able to ...
Abstract: This paper describes how product model information together with building knowledge is used to generate robot operation plans. This approach is explained using a case of the design and installation of a suspended ceiling system. In this case study an information reference model for suspended ceiling product models is discussed. ...
Abstract: The inspection and maintenance of buildings and other structures constitutes a significant proportion of the workload of the construction industry. Difficulties associated with access, risk of injury and costs, point to the need to reduce human involvement and look for means of automating these activities. In this paper conceptual requirements ...
Abstract: This automatic exterior precast concrete wall panel installation system performs a series of in-situ construction work, from spraying paint on exterior precast concrete wall panels, to transporting and installing them. The system consists of an automatic exterior precast concrete wall panel paint spraying system, an automatic transportation system and an ...
Abstract: We have developed face marking system (named tunnel marker) using for tunnel construction. This system is composed with laser projector, total station, tripod, controller and surveying mirror.It can intermittently project following items to the appointed place from optical located position in the tunnel. This operation is by wireless.(1) Center point ...
Abstract: In the recent shield tunnelling, various requirements are sing led out as targets to overcome for the purpose of meeting the varied social needs; as such requirements, there are lengthening of tunnels, boring at deeper levels, construction of tunnels of larger section, etc. But, for solving these problems, the works ...
Abstract: We have connected the various automatic construction systems for shield construction by a high speed network. We have developed a Total Shield Construction Control System (KSGS Kajima Shield General Control System) that controls all the systems in a centralized control room. This control system has already been installed on ...
Abstract: It is very important to know the volume of discharged soil for more adequate excavating control of the shield tunneling machines. In confined soil shields and mechanical shields, excavated soil is discharged by belt conveyors and muck cars, so it has been difficult to evaluate the discharged soil volume. In ...
Abstract: Mobile manipulators with very large reaches and high payloads like telescopic cranes or concrete booms are important machines for the construction industry. Those systems have to be very safe. One important item is to ensure stability under any condition.This paper describes an approach to control the stability considering ground conditions. ...
Abstract: Two noticeable events will spend-up the development of road construction robotics: - the recent availability on the market of adapted localization systems, - the increasingly developing utilization of computer aided design in the study of road construction projects.Currently, no links do exist between the design studies and ...
Abstract: An automated landslide protection wall construction system and an automated concrete placing system were developed and applied in an underground LNG tank construction project at the Negishi plant of Tokyo Gas. The underground LNG tank is a huge vertical shaft storage of liquefied natural gas. This tank is a concrete ...
Abstract: A new automatic reinforcement preassembling system introduced in a underground LNG tank construction project at the Sodegaura Plant of Tokyo Gas is discussed in this chapter. The system incorporates a curved ...
Abstract: For the submarine excavation of the anchorage foundation for the Kurushima Bridge connecting Honshu and Shikoku, a computer aided construction system was set up and used to strictly control all the construction processes, including the submarine topography survey prior to excavation, routine excavation, finish and confirmation of the excavated sea ...
Abstract: The thrust area of Finnish construction automation is concrete component prefabrication. Also mobile on site robotics and other themes are developed. It is recognised that changes in organisation, building systems and information management are needed in connection to the introduction of advanced automation in construction. National projects, which aim at ...
Abstract: The article describes two R&D projects which are now in progress to develop robots for the Swedish construction industry. The projects are being carried out by two co-operating groups, one in the Stockholm area and one in the Gothenburg area. In addition to these projects, a long-term research project is ...
Abstract: The construction material, shotcrete, has gained more importance in the last years, more especially in tunnelling and underground construction. Through the automation of the shotcrete nozzle con-shotcreting with respect to the assessment criteria of concrete quality, economy (rebound) and working conditions (dust development) which occur during conventional manual treatment could ...
Abstract: The current state of robotic technology is briefly reviewed with a view to establish what developments need to take place to enable the fully integrated site of the future. A scenario is presented depicting how such a project could be organised from tender stage to completion and implications ...
Abstract: Employees in the construction industry are exposed to exceptional physical burdens and accident and health risks. Extensive research projects conducted in the past or currently in progress have provided practical solutions for reducing these burdens and hazards. Shotcreting is used here as an example to demonstrate how improvements in equipment and ...
Abstract: The paper discusses two original systems to automatically eliminate negative behaviours in mobile construction equipment with 4WD.For example in an articulated frame steer machine one of the devices allows for over 2 fold decrease of energy consumption by steering gear. The devices have been designed on the basis of both ...
Abstract: The main cost factor in the construction and operation of drainage systems in residential areas continue to be the sewer systems for waste water and storm water. Surveys have shown sewer systems to be in an alarming state of dilapidation which , among other factors, may give rise to diffused ...
Abstract: Some important problems of building maintenance is cleaning of walls, ceilings, and floors, cleaning of window glasses in high rise office buildings. The problem is specially advanced for application in nuclear power station halls, under ground stations etc. Robotic systems for these purposes consist of mobile robot having horizontal motion ...
Abstract: This paper describes the automatized excavating system that was developed for excavating ditches for drains. This system we developed is composed of two sub- systems, an automatic surface finishing system and a laser guided system. The controller calculates the position of the bucket- tip by using information of the laser ...
Abstract: This paper describes the development of a prototype of automated conveyance system and the feasibility study carried out at the actual construction site. The system, consisting of highly intelligent robots (automatic forklift, automatic wagon, automatic lift, and automatic roller conveyor) functioned harmoniously and autonomously realizing an automatic conveyance of ...
Abstract: In order to manage site precast concrete construction which has been increasing, an integrated construction management system employing a unique 3-D modelling method and analogue process input method was developed. At the planning stage, the system supports interactive planning between member configuration and installation planning, by a visual method and ...
Abstract: PrT- Nets are useful as an instrument of inference. The article will give a short introduction in the PrT-Net theory and shows on same example how to transfer the work process in a PrT-Net structure.
Abstract: CIPRO* is knowledge based simulation system that enables its users to relate project design drawings and specifications to process networks and associated resources. Each process is defined in terms of actions, corresponding project components, availability and attributes of resources, a network of operations and queues and operation functions. CIPROS infers ...
Abstract: This paper introduces the concept of macro manipulators as the means whereby the whole robotization of construction may become practicable. Two examples of full scale machines which are in the process of commercialization are presented to illustrate the feasibility of the technology. The paper examines in brief the applications potential ...
Abstract: Programmable and mobile manipulators with very large reach are vital machines in the construction site of the future. This paper gives an overview of the developments in this subject which started in 1986. With the ESPRIT II project LAMA the enabling technologies for large manipulators will be provided in a ...
Abstract: This paper is dealing with two sensor systems for a large manipulator with the reach of 20 meters, which are under development as a part of a running ESPRIT II project. One system is an opto-electric position sensor system closely linked to the manipulator arm, which has the aim at ...
Abstract: The U.S. Army Human Engineering Laboratory ( HEL), in cooperation with the national Institute of standards and Technology (NIST) and martin Marietta Aero & Naval Systems (MMA&NS), has developed a test-bed to study the use of robots for materials handling in the field. In June 1990, the team completed ...
Abstract: The fulfilment of todays demand for particular pavement course thicknesses and a particular evenness in the construction of road surfacing is one of the main task set road building equipment. This aim can be reached through the use of electro-hydraulic control facilities for the working units of the corresponding construction ...
Abstract: Among the road construction tasks, finishing is one of the most important because, once carried out, nothing can be done anymore to improve the quality of the profile. The behaviour of this equipment and of the material it handles is more complicated that it seems to be. The most significant point of ...
Abstract: Most frequently, vibratory rollers are used for compaction tasks during earth works and road construction. An increase in the roller performance can be achieved by automatically adapting the machines parameters which determine the compaction result and by automatically controlling the state of compaction continuously. The actual problem is, that because ...
Abstract: The development of expert systems in construction management has been widely implemented to deal with heuristics involved in construction decisions. The role of the construction foreman, particularly his span of control (number of subordinates) has not received the degree of attention it deserves in research and in expert systems. Situational ...
Abstract: This paper presents an integrated systems approach, utilizing a hybrid methodology for the generation of practical cost and schedule baselines and for bid preparation under the prevailing competitive bidding environment. The system incorporates enhancements to the various functions that cover the quantitative aspects of estimate preparation, including: direct and indirect ...
Abstract: The evaluation of project plans in construction is seen to be an important task which will become more so as project complexity increases and computers become used more and more, initially as aids to planners and ultimately as automatic generators of plans. This paper discusses automated plan evaluation, and in ...
Abstract: The mobile construction robot system of VTT consists of a track based vehicle, an industrial robot, support legs and process tooling. The main purpose of the control of the vehicle is the navigation and estimation of the position of the vehicle on construction site with an accuracy of ±50mm.The system ...
Abstract: This paper presents the Panorama project, its objectives and technical approach, first results of autonomous motion with an experimental platform, and application scenarios. The Panorama project aims to develop an advanced perception and navigation system for automated industrial vehicles dealing with partially structured and partially known environments (outdoors).Applications concern the automation ...
Abstract: Testing of geometric quality of a precast unit is aimed at yielding reliable information on the features achieved at yielding reliable information on the features achieved in production. Therefore the authors present a measuring system consisting of a robot, the sensors and the coordinating computer. The main goal of this ...
Abstract: Even under the very severe operating conditions typical for the construction machinery area electronic control systems are being used more and more Examples of presently used electronic control systems in a big European construction machinery suppliers program of excavators, wheeled loaders and track type vehicles are presented
Abstract: The complexity of the construction machine with its working implements has reached a degree at which the driver is no longer in a position to operate the machine continuously in the most efficient way. By introducing closed control circuits the operator can partly, or in some cases entirely be relieved ...
Abstract: In the building industry, individually-tailored mechanical systems still dominate the field of construction work on bridges, factory halls, and buildings, as well as preventive maintenance work and repairs in various applications. Recently a strong demand to develop and integrate new robot controllers and mechanical systems for the building industry can ...
Abstract: We have developed the system operated by means of a computer for controlling direction of shield machine, which is one of the important parts in controlling shield method. The system consists of three sub-systems. The automatic survey system measures the position and direction of shield machine. The data acquisition system measures ...
Abstract: This paper describes a landmark High-Accuracy Position Control System for Underground Diaphragm Walls. The demand for ultra-large underground diaphragm walls, reaching the maximum depth of 170 m and thickness of 3.2, has lately increased. This high-accuracy position control system for use in the construction of such underground diaphragm walls is ...
Abstract: The development and computer coding of an accurate simulation model is probably the most important time consuming activity in the modelling of systems and the operations they are involved in. This hardship has confined the use of simulation modelling to the planning stages of the project. The object oriented view ...
Abstract: This paper discusses the role of product modelling technology in construction robotics control. Information models for the representation of construction product and process information enable more intelligent behaviour of construction robot tools, because construction knowledge can be transferred into the robots. In this paper an information model is presented for ...
Abstract: Simulation offers a tool that enables the simulator to compare alternative technologies in an environment that closely models the real world. Advantages of automation from a production perspective can be established by building a simulation model and experimenting with it on the computer. This paper illustrates this by specifically simulating ...
Abstract: It is known that mobility of future robotic construction plants, which is their main function, is ensured by the possibility of high-precision positioning and by the orientation capability of a movable robot in reference to a stable (engineering type) system of coordinates related to the parameters of the site. We ...
Abstract: Vision systems are inevitable components of intelligent and automated construction machinery. 3-D vision systems are proposed to provide advanced machine capabilities such as collision avoidance, robotic manipulation, terrain mapping, and more. The range images generated by the 3-D sensors substantially facilitate robust, real-time data processing required for intelligent and automated ...
Abstract: GPS is a new radio-wave positioning system, which allows the user to ascertain his position from waves transmitted from the GPS satellites. A system using GPS navigation sensors was applied to positioning of earthwork equipment. While the precision obtained in single-point positioning was only around 20m, the precision could be ...
Abstract: The following report details the procedure for the erection of buildings in solid brickwork with prefabricated wall panels. The first part describes the partially automated plant as it already exists and of which several are in operation. The second part delineates the stages of development as they have been planned ...
Abstract: This paper describes the design and performance of a robot system NERO (Nuclear Electrics Robot Operator), commissioned by Nuclear Electric PLC. The robot was first operational in February 1991. The system consists of a robot climbing vehicle and a specially designed control console. The robot is pneumatically powered and uses ...
Abstract: The joint venture NOELL/NIS received the order for the project and planning work and execution of the dismantling of the nuclear power plant Niederaichbach from the Kernforschungszen-trum Karlsruhe. According to the present situation of the work progress a green meadow planted with green bushes shall be created in about 4 years ...
Abstract: Pipes used in buildings for supply of hot and cold water, as well as of water for air-conditioning systems, are subjected to deterioration due to the various factors, which may lead to leakage and blockage of the pipes and to malfunctioning of the systems. Causes of the deterioration vary but ...
Abstract: Remote controlled operation requires a lot of information about the working environment. Cameras and proximity sensors cannot give all the information being considered as necessary for working in a narrow and hardly observable environment. If the environment is geometrically more or less defined, computer support can give the missing information. The ...
Abstract: An inner construction work robot test system has been designed and evaluated at VTT. The designed, but partially realized, robot system could reach and transfer a payload of 10 kg to any inner surface of such a room in any orientation, the maximum height of which is close to the ...
Abstract: An automatic directional drilling system for vertical bore holes has been developed by Schwing Hydraulik Elektronik and Deutsche Montan Technologie (DMT) as a joint venture. This system measures the inclination continuously during the drilling process and corrects minor deviations from plumb by immediate counter steering. The actual angles and the ...
Abstract: For the last two years, a French research project aimed to define the specification of construction robots, with regard to the mobility requirements. Mechanical aspects, as well as motion planning and positioning function were carefully examined, for a panel of building construction basical operations. Conclusions are carried out for construction ...
Abstract: The objective of this paper is to identify and study object oriented constrsucts exhibiting feedback mechanisms required for the operational simulation of construction projects. To illustrate the concepts involved, we choose a demonstration in earthmoving operations. Contrary to manufacturing operations, the "factory floor", i.e. the construction site, has a profound ...
Abstract: The paper describes the technological development of full-scale robotic execution, at construction sites, of several types of interior finishing tasks, the latest stage in the evolution of a multipurpose interior finishing robot. The robot will perform various building tasks, adaption of a mobile carriage, working tools, material feeding systems, and ...
Abstract: Ohbayashi corporation has been engaged in the construction of a block of flats which, upon its completion, will be the tallest reinforced concrete building in Japan. A computerised comprehensive control system was developed for the reinforcement work for efficiency in the management work and, at the same time, mechanisation and ...
Abstract: Developments in automating traditional construction methods have been fraught with difficulty. In part, this has been due to attempts at adapting conventional robotic manipulators to suit the construction plant and equipment have evolved from different origins and there are significant differences in the requirements of each. This paper discusses these ...
Abstract: It is possible to devise a components-based approach to the design and construction of industry and commerical buildings without compromising architectural quality. Modular building systems, based on the components of the parts-set proposed in this paper, could provide an answer for building owners and users requiring flexible, highly-serviced space. This ...
Abstract: Total control over the design, management and construction of a building eludes most project teams. The magnitude of the resolved prevent it happening. Certainty is sought but rarely achieved because of the ill-defined nature of the design problem. Rekindled interest in component-based modular building systems provides a timely oppurtunity to ...
Abstract: The purpose of this development is to create a repairing robot which is able to perform chipping the deteriorated lining concrete in the wall of the power cable tunnel, exposing and derusting the reinforcement simultaneously. As a chipping method, a super high pressure water jet method as actually used ...
Abstract: As part of its Advanced technology programme, the DTI has introduced an advanced initiative to assess economic benefits across a diverse range of application areas and to develop technological sub-systems which are not specific to a particular industry. The AR initiative has been spearheaded by the tunnelling collaborative group which ...
Abstract: During the past several years, the automation of design of construction projects has taken major leaps that affeted construction. Construction drawings are now produced with CAD programs using standard data, specifications are generated with expert systems that influses requirements of testing standards, while construction contracts are derived from ...
Abstract: With the enormous expenses associated with the construction of a new building, it is necessary to take every possible precaution to see that the building endures for the longest possible period, with the minimum of unschedules maintenance and repairs. The need to eliminate unforeseen problems, from unscheduled machinery downtime, to ...
Abstract: In the construction of large-scale structures such as nuclear power plants, an enormous amount of large-diameter reinforcement bars are used, and generally thousands of drawings are required to fabricate them. The installation and fabrication of heavy reinforcng bars are laborious and dangerous for woekers. To facilitate drawing preparation and ...
Abstract: A micro-computer based expert system in field of construction planning of hose building has been developed. This system encapsulates some of the knowledge experts in the field use for programming the used by construction planners as a decision making supporting tool. The evalution processer device for this system has ...
Abstract: A pull system for planning and control coupled with Just-In-Time (JIT) production creates a well integrated manufacturing operation characterized by exemplary productivity, and low work-in-process. The construction industry is also well suited for this approach using many of the techniques required by a pull system, such as JIT and team-style ...
Abstract: Adaption of new and exciting computer technologies such as knowledge based( KBS), object-oriented databases (OODBs), and robotics will dramatically alter projects. The premise of this paper is however that we need to re-think how many of these automation technologies should be developed and inter-related. A generalized core theory is vital ...
Abstract: This paper describes an expert system aiming at creating the environment for engineers to generate construction plans efficiency based on the Down from the top planning methodology. An experiment for a building project was studied to investigate the competence of the methodology. A prototype system has been implemented in KEE ...
Abstract: A computer program, ATOP, for generating and managing construction schedules is presented. The program includes tools for interactive project breakdown into locations. The activities needed to accomplish each location are defined using an activity type library which also forms a knowledge source for initial schedule calculation. The initial schedule can ...
Abstract: This paper represents an integrated software approach to the development of a computerised knowledge based system for construction planning and scheduling. The system, ESCHEDULER embraces hybrid methodology to make use of and to build on available experimental knowledge in construction planning, and to enhance currently available project management software and ...
Abstract: Within the academic and construction communities, there has been growing concern about how to deal accurately with the ever-changing nature of the whole construction business. In order to deal with the hostile construction environment, there is a great need in the construction industry to develop and implement a practical monitoring ...
Abstract: This paper illustrates a system prototype development for integrating estimating data and planning information, based on the standard method of measurement of building works (SMM) and bills of quantities. This results in the integration of estimating data and planning information for management. Sensitivity of the system prototype to changing conditions ...
Abstract: In order for an item of robotic construction plant to function it must be precisely located on site relative to its task. This can be achieved through the provision of a global or site reference framework and of a local or task speicific reference framework. In green field applications in ...
Abstract: Reductions in the size and cost of sensors, microprocessors, and transmission and data storage devices permit the development of construction tools with built-in sensing and data processing capabilities. Such "smart tools" could assess installation conditions and respond accordingly, allow inspection at the time of installation, and, with appropriate data transmission ...
Abstract: A great number of large scale marine construction projects have been undertaken in Japan. One example of such a project, the Akashi Kaikyo Bridge, wil be the largest suspension bridge in the world when complete. One of the great projects of the century, it has gigantic main tower foundations 81 ...
Abstract: After having shown the necessity to locate in the three dimensions the civil engineering machines whose tasks are to be automated, the authors recall the advantages and disadvantages of the different existing systems and methods. The main point of the system is about an original location system using an on-board ...
Abstract: The knowledge needs of an agent may be met by exploiting the knowledge environment. In particular, knowledge can be obtained from other agents or a variety of knowledge repositories such as databases. Humans readily satisfy much their knowledge needs in the way just mentioned, but there is still a lack ...
Abstract: This paper focuses on the problems associated with instructing assembly robots to perform tasts in an autonomous, reliable, and component way within a real world environment. In the context of achieving these objectives we identify two major limiting factors directly affecting the efficiency, task reliability, and economic viability of robotic ...
Abstract: A mobile robot of the fourth generation requires an on-line, real-time sensory feedback system to guide the robot, to stay on planned path, or to avoid unexpected obstacles. The study we oresent in this paper concerns a multisensors and multiprocessors fusion in order to create a new model of the ...
Abstract: It is the general consensus in the literature that the potential that the potential for the development and use of advanced robotics in construction is promising. It is belived that automation and robotics will put a stop to the decline in construction productivity that occured in the last 20 years ...
Abstract: This paper describes work which is taking place into the use of artificial intelligence techniques to evaluate construction project schedules. Following an introduction to the topic in which the need for evaluation is explained and possible types of evaluation are examined, two methods of checking completeness are presented: one in ...
Abstract: Remote manipulator operations require a high level of telepresence. This can be achieved by a combination of tactile audio and visual links used in association with an effective deployment system for the slave arms. The combination of these elements has been termed the 'bridge between master and slave' by the ...
Abstract: This paper discusses results of a SERC sponsored investigation of the impacts and problems of automation in materials management on large construction sites. Surveying five large construction firms in U.K. with structured questionaires and formal interviews, the investigation centred around an evaluation of the level of automation in materials planning, ...
Abstract: Project parties need to contribute their efforts throughout the project life-cycle. This is especially the case in fast-tracked projects that have become commonplace in construction industry. The crude methods available currently have become inadequate for these severe demands. in this paper, we describe the utility of constraint management theory as ...
Abstract: What does object oriented programming have to offer project management software systems? This question is examined by first seeking out those development trends and directions that will be of importance for project management systems in the future. These are ability to the flexibility, integration and intelligence. The basic characteristics of ...
Abstract: Construction processes involving the manipulation and assembly of small components are ver ancient. These traditional processes, among which masonry is the most developed (but not the only one) have undergone very slight progress until the last decades. Improving the efficiency of the process was the main incentive to such progress. ...
Abstract: This paper describes the implementation and experience with a construction scheduling procedure incorporating knowledge based techniques. The system works from a site layout drawing and whilst the process can be operated almost 'automatically' experience so far indicates that it is necessary to be able to use the system in its ...
Abstract: Robotics implementatio on construction sites poses significant challenges to both contractor firm management as well as technical staff. Only a few large construction firms in Japan currently utilize fleets of robotics in diverse work tasks. Similar equipment is expected to be implemented by large construction firms in other industrialized nations. ...
Abstract: The management of construction automation androbotics are as important as the technological aspects for the successful implementation of the tecnology in the construction industry. Quality, reliability, productivity, and competitiveness are commonly advanced as the motivation for implementing robots and automation in construction operations. However, the emphasis has been mostly on ...
Abstract: The increasing concern within te construction industry over the future decline in the labour market has prompted a need to investigate alternative construction methods, particularly automated or robotized ones. A method for researching these issues in relation to the work of a major contractor and for identifying the technical and ...
Abstract: The influencing factores which favor or hinder the development, market penetration and use of robotics and other forms of automation on construction sites were studied by the author and collegues in the United States, Canadam Japan, England, West Germany and Sweden from 1985 to 1987. Data collection was accomplished through ...
Abstract: The identification and specification of construction operations and the selection of construction methods, including equipment and labour resources, are central activities in the production planning of construction projects. The decisions taken are complex and the choice of construction method and estimate of production output have serious consequences for the effectivesness ...
Abstract: Automation and robotic applications for use in the North American construction industry are currently under development at numerous university and industry laboratories. A number of these applications have been tested under simulated or actual jobsite conditions; some have provided enough information to determine technical success or economic feasibility of the ...
Abstract: This paper reports on the results of a Norwegian-Finish feasibility project on construction robotics, carried out in 1988. The aim of this project was to determine and evaluate the most suitable robotization themes from the point of view of the construction industries in the respective countries. Functional requirements and preliminary ...
Abstract: For rationalizing building construction systems with robots, we organized WASCOR (WASeda Construction Robot) research project at System Science Institute, Waseda University in 1982. The project team is composed of 10 university professors in the field of civil, mechanical, industrial engineering and system science, management and engineers from 9 general contractors ...
Abstract: Based on the concept of Robot Oriented Design which was presented at the 5th international symposium on robotics in construction in June 1988, this paper proposes a design analysis for the ROD robot-oriented-design synthesis of structural elements. The structural elements are beam and column including their joining system. A systematic ...
Abstract: Design and construction are highly fragmented for many types of projects in the US construction industry. This vertical and horizontal fragmentation leads to inefficiencies during construction. Knowledge based systems provide a means to partially automate the process of construction input to design and assist in reducing the adverse impact of ...
Abstract: Functional requirements, technical specifications and economical feasibility on masonry robotic theme have been investigated. Two alternatives are discussed: a modular SCARA-based system and a six D.O.F. articulated configuration. Market prices of $310000 and $350000 respectively have been estimated for the systems with a payback period of 6 years with realistic ...
Abstract: On February 24, 1987, the Greater Vancouver Sewerage and Drainage District awarded an $8.5 million contract to Dillingham-Manson. A Joint Venture for construction of the Iona Outfall-Submarine section. The work to be done under this contract involved the installation of approximately 10,500 ft. of twin 90 inch diameter steel outfall ...
Abstract: To increase safety and reduce costs in maintaining buried pipelines, we have been studying various types of robots capable of inspecting and repairing such pipelines from inside, and we have recently succeeded in developing automatic welding robots to reinforce welds from the inside of a steel pipe with a diameter ...
Abstract: More stringent requirement on the integrity of safety-related components in power plants with a view to ensuring the availability of these installations and to rationalizing in-service inspections and repairs have resulted in the continuous and rapidly advancing enhancement of the inspection and repair methods used. This ...
Abstract: Knowledge representation and reasoning techniques derived from Artificial Intelligence (AI) research permit computers to generate plans, not merely analyze plans generated by human planners. They explicitly represent knowledge about how generate plans in the form of initial and goal states, descriptions of actions along with their preconditions and effects, and ...
Abstract: Construction schedules exist in many forms to serve many purposes. They are prepared by various means by different individuals either manually or aided by computer software. Work which is underway to automate the production of schedules is now being supplemented by the development of an evaluation package for general usage. ...
Abstract: The paper describes the development of a neural network based method for solving complex construction operational problems. A brief introduction to neural networks is provided. Particular reference is made to the mechanics and properties of the technique and its potential as a management problem solving tool. Following this, the optimal ...
Abstract: The concept of Computer Integrated Construction (CIC) creates many challenges in developing an integrated system which links vertically and horizontally all the different participants on a construction project. In addition to the sharing of information, CIC provides new opportunities for construction management which include integrated planning and control. Researchers at ...
Abstract: The automation of the excavation process requires consideration not only of the design and operation of the excavator drive and control systems but also of the mechanics of the excavation process itself. The paper therefore discusses the developments necessary in these areas in relation to the operation of a simple ...
Abstract: A project, named ROBAT, of design and realization of an autonomous mobile platform for the building industry, achieving tasks at the end of carcass work, is currently developed within the ECOLE DES MINES DE DOUAI. Generally, it is possible to give a model for third generation mobile robots, which is ...
Abstract: To establish a drawbar-pull control system to obtain a maximum productivity of a flexible tracked vehicle i.e. bulldozer running on a super weak marine sediment, the traffic performance of vehicle could be clarified by the use of a micro-computer in robotics for construction from the initial information of terrain properties ...
Abstract: Construction inspection for quality control and quality assurance is central to ensuring compliance to contract standards and to assuring owners that work has been done right. This is especially true on critical facilities where inadequate performance can have severe consequences, for example, in the construction of earth works to contain ...
Abstract: Logic relationships of activities in a CPM network can be categorized into highly dependent and largely independent. The current available CPM scheduling techniques, however, equally treat the logic relationships and, thus, is considered as one of its major deficiencies. This paper proposes an approach that starts from a preliminary network ...
Abstract: Robotic construction equipment will need to plan and replan in response to rapidly changing site and external market conditions of a project. A group of researchers at Standford University is conducting research on the potential of artificial intelligence (AI) techniques to develop enhanced tools for generating plans and schedules automatically ...
Abstract: Many new demands in the construction industry encourage increased automation of design and construction, but realizing the opportunity presents many management challenges. One of the greatest is awareness of potential advantages for the firm. The purpose of this paper is to describe the possible competitive advantages from advanced technologies for ...
Abstract: Mobile robots a wide range of tasks await them but what forms can this type of tool make? The design of the robot tools is determined by the most important functions, i.e. transporting in order to move the robot, and handling. Depending on the combination of these components ...
Abstract: RTRAK is a mobile, computer based, gamma scanning and radiation mapping system developed by Chem-Nuclear Systems and MK-Ferguson Company for use on the Uranium Mill Tailings Remedial Action Project. Verification of large land areas contaminated with ...
Abstract: Most of the positioning and navigation systems developed for construction machines have been focused on satisfying 2D navigation requirements. In this paper, a system is proposed for continuous and accurate tracking of a bulldozer or corresponding moving machine. Tracking is based on 3D coordinate determination using a time-of-flight laser range ...
Abstract: Mobility has been early identified as a key function for future construction robots. It is then essential to develop navigation modules, pilot modules and positioning modules that fit with the constraints of the work site. Concerning the positioning modules (that provides coordinates and orientation of the mobile robot related to ...
Abstract: Robotics application to the execution of construction tasks has been attracting attention in the engineering community since early 1980s, both in Japan and in other highly industrialized nations. First working prototypes of construction robots have been appearing in Japan on a number of construction sites operated by several leading Japanese ...
Abstract: Robotics techniques in operation in the industry or under development in laboratories supply basic functions to carry out many different operations. Some of these techniques are compatible with construction sites operations under reasonable economic constraints, some other are not (too fragile, too costly, ). Obviously, construction site operations are ...
Abstract: The geometric configuration of construction tower cranes - with well defined joints and degrees of freedom - allows to transform them, via robotic technologies, to semi -automatic equipment. We wish to add a fast and accurate navigation option to be used by the operator, mainly for cyclic, routine tasks. We report here on the ...
Abstract: In this paper, a system which employs robots in the automation of construction work is proposed. Specifically, the methodology of a robotized system design in reinforced concrete work are described. Reinforced concrete work involves various works such as mold and reinforcement assembly, concrete placement, straight finish, and mold demolition. The ...
Abstract: The development of machinery becomes successful only with their popular use which is greatly influenced by the rate of operation. This requires workable policy decisions which address the possession and allocation of machines in conformity with various project environments and the nature of the machines. This paper dealt with the ...
Abstract: Construction CAE is a simulation, planning, and scheduling software system that integrates a Computer Aided Design (CAD) system with a relational database management system (RDBMS) and cost control tools. The system takes the CAD three-dimensional model data as input and stores it in the RDBMS. The data is then extracted ...
Abstract: The author points out that the existing simulation systems cannot represent precisely the ill-structured logic in construction operations without if-then representation. He also discusses the methodologies of system simulation which are based on artificial intelligence methods. The author then presents a prototype system developed of the simulation system, and shows ...
Abstract: This paper presents the development of a mobile robot for the autonomous AGV (Automated guided Vehicle) which has no external guiding systems and navigates by vision. We chosen indoor environments for autonomous AGV and the environment was modified according to their structural complexity and artificial landmarks were used to modify ...
Abstract: This paper introduces a new erection system of steel beams and columns by applying robots for building construction. This system is composed of crane, positioning, adjusting, welding, climbing scaffold robot and so forth. Features of this system are shown by the following items. a) Robots for positioning, adjusting ...
Abstract: The Symbolic Unified Project Representation (SUPR) Model was developed to achieve integration of construction information. It provides modular units, and the environment necessary to model project information in a unified manner, thus enabling diverse systems to collaborate and share information. Construction robots are becoming increasingly important construction resources, and their ...
Abstract: Modeling of global work environments requires the implementation of techniques capable of explicitly defining and capturing interrelationships amongst the individual components that comprise the system. A construction environment creates particular modeling challenges that are a result of its loosely defined working infrastructure. In a detailed effort to develop a methodology ...
Abstract: We have developed a knowledge base for a CAD system in architecture using an object oriented environment associated to Prolog. The aim of this research was to make the system a true assistant for the architect. The mock-up we have done shows that this approach is possible if the user ...
Abstract: The knowledge acquisition process in traditional knowledge engineering methods has been identified as the bottleneck in the development of expert systems. A system called the Interactive Domain Model (IDM) has been developed to automate the development of diagnostic expert systems. The IDM embodies meta-knowledge about the diagnosis of physical systems, ...
Abstract: During the past few years, a cluster of development projects with wide participation have been initiated in Finland in order to create the necessary basis for a second wave of industrialization of construction in the next decade. The targets include the creation of an open construction system based on prefabricated ...
Abstract: "Since 1983, Ministry of Construction has been engaged in the research project ""Development of Advanced Systems for Construction Technologies with Proper Use of Electronics"". This project has the purpose of making contribution to improve construction technologies related to planning, design, execution, maintenance and conservation by application of the electronics-related technologies. ...
Abstract: Several factors concerning to rationalization of building construction technology are dealt with from the administrative point of view, with special stress on utilization of electronics-oriented advanced technology. Once behind other major ministries in connection with this kind of technology, MOC, the Ministry of Construction has been getting more affirmative to ...
Abstract: This report presents the current status of the "Advanced Robot Technology" Project in Japan. The "Advanced Robot Technology" project is aimed at research and development on advanced robot systems capable of carrying out inspection, maintenance, rescue, and other complex tasks in dangerous environments that preclude any direct human intervention. R&D ...
Abstract: Robot systems to be applied to the actual dismantlement of the Japan Power Demonstration Reactor (JPDR) have been developed in the Japan Atomic Energy Research Institute (JAERI) since 1981 as a part of the technical development for reactor decommissioning. The development has been carried out through the steps of the ...
Abstract: Geometric reasoning, the integration of geometric representation and inference in advanced computer systems, is presented as an issue at the forefront of research in construction automation. The unique demands that construction automation poses on such reasoning are discussed. An architecture that provides a structure for geometric reasoning is presented and ...
Abstract: Several years have passed since the first robot introduction into building construction sites. Earnest efforts by the involved people developed some types of construction robots in the industry. But the construction industry is understood to be a very difficult area of robotization and there is no integrated robotized building construction ...
Abstract: This paper reports on the preliminary work of a research project which is looking at the extent to which modifications in basic building technology might be necessary to accelerate the progressive robotization of on-site production processes. The research programme, which is outlined, will incorporate studies of on-site processes for certain ...
Abstract: In the development of construction robots and the designing of their operational systems, to accurately grasp the real state of the construction process and to collect extensive data as well as to be well prepared for various conditions is indispensable. This study, on work study for robotization of construction process ...
Abstract: Artificial intelligence and robotics will change construction practices and education sufficiently to require new approaches. Starting with design and continuing into facilities management. Current linear relationships of the parties to construction shall change to become clustered relationships, to allow better integration of services. Clustered relationships will cause owners, designers, constructors ...
Abstract: The aim of this paper is to explain four robotic systems for assembly and finishing work in building construction. "Mighty Shackle Ace" is a radio control auto-release clamp to execute steel column and beam erection safely and efficiently. "FLATKN" is a concrete slab finishing robot which provides high work efficiency ...
Abstract: Robots operating in a constructed facility must possess knowledge about and a description of their environment. This information is organized into a domain model. This paper presents current work investigating issues in developing domain models of constructed facilities for robotic applications using an object-oriented approach. Requirements regarding model contents and ...
Abstract: The economical interest of robots for construction sites is not yet fully asserted. Existing experimental robots are still complex and costly machines. Most of these future robots are likely to be mobile robots. It is then essential to research simple technical solutions to ensure the mobility function. Attempts to use ...
Abstract: Automatic identification systems, particularly bar codes, are an essential link in achieving automated construction materials management system. There is a significant future in bar coding, as is evident in other industries. The opportunity to promote data transfer between organizations and companies has not been adequately explored. By following the research ...
Abstract: We, a general contractor, is operating on the management principle of integrated system from designing to Construction, and is directed toward an engineering contractor. In 1965, large general-purpose computers were installed to start reorganization of the job processing systems, and the environments of use have been improved ever since, from ...
Abstract: The need to increase safety, productivity, quality and efficiency in construction is a challenge to researchers to seek and develop bold innovative changes. Technological adaptation of successful concepts from other industries into construction, offer an important path for innovative progress. This paper will provide an insight into some aspects of ...
Abstract: Most of future construction robots are likely to be mobile robots. They will also manipulate tools to perform various tasks. The coordination of the mobile robot movements, of the handling of tools and products, of the task control will be executed by informatic systems that will probably be on-board systems. ...
Abstract: One idea for the step up of robotization in building construction is to change the conventional construction works adaptable to robotics. In this paper, a structural system for the wall erection named SMAS (Solid Material Assembly System) is proposed and the developed hardware systems are mentioned. SMAS is a kind ...
Abstract: In order to achieve higher productivity in outdoor works such as construction, mining, agriculture, forestry, etc.,, it will be necessary to develop highly-advanced machines. We have just established a new organization for research and development activity of sensing and control systems for autonomous land vehicles for outdoor work using millimeter ...
Abstract: An important aspect of construction project control is accurate development of a baseline schedule. It becomes the standard against which all progress and performance is measure. Knowledge-Based Expert Systems (KBESs) offer promise of helping managers control projects better. Research at U.C.Berkeley is being conducted to utilize this tool. Concepts necessary ...
Abstract: This paper reviews the capabilities and application of the CONSTRUCTION PLANEX system. This knowledge-based expert system assists in the selection of construction technology, the definition of work tasks, the estimation of required resources and durations, the estimation of costs, and the preparation of a project schedule. The system has been ...
Abstract: This paper presents an approach to providing an automated decision support system for Preliminary Building Design. It integrates knowledge from different domains, mainly from construction, using Knowledge Based Expert Systems methodology. Given the overall geometric parameters for the building, this approach explicitly incorporates construction knowledge about major building components such ...
Abstract: Modern building comprises the assembly of discreet and diverse systems for their structure, fabric and services. Each system comprises manufactured products, building design and construction skills and a completed element that requires maintenance in use. The success of the total building is dependent on how well the design, construction and ...
Abstract: Multi-link articulated booms have a multitude of applications in civil engineering, e.g. concrete pouring, building maintenance etc., but also firefighting. In the Kernforschungszentrum Karlsruhe (KfK) a new system with a multi-link articulated boom of 22.2 m maximum length and 6 rotary axes is under development in cooperation with Putzmeister-Werk. Our ...
Abstract: The following is a review of the current status and future plans of the research concerning tower crane operations, carried out by the Technical Research Centre of Finland (VTT). Firstly, an empirical time-motion study of crane operations on building sites is described. The results can be used for creating a ...
Abstract: The paper gives an overview of the work performed in a national project by the companies Putzmeister, AEG and Dornier together with the IPA-Stuttgart. The principal hardware and software is now completed and tested. The first results show that the specifications of the system can be realized.
Abstract: When an existing product manufacturing process is automated, the largest savings are gained when consideration is given to modifying the design of the product and the components from which it is assembled. Traditionally, the manufacture of the products individual components and its final appearance were the main factors in ...
Abstract: Results of the experimental analysis of the operation system of a hydraulic excavator for deep trench works are described in this paper. The system of the operation of a hydraulic excavator has a hierarchical structure. The system is a sequentially controlled system which is consists of several partial systems in ...
Abstract: Automatic control systems for construction machinery have been developed, which control the motion of attachments. The purpose of these systems is to simplify such difficult operations as level crowding of a hydraulic excavator and level luffing of a crawler crane. The control systems consist of a microcomputer-based controller, sensors and ...
Abstract: Repeated studies have been conducted on the automatization of construction work and for greater efficiency in processing of information and the operation of the Equipment Center, that serves many construction sites, are dealt with as one study. Temporary construction materials which flow between jobsites and the Equipment Center and the ...
Abstract: A compact survey system for small shield tunneling has been developed. The real time data acquisition system offers information on pitching, tolling and yawing of the shield machine as well as location. A set of the system comprises a target including three LEDs and a prism reflector, a detector including ...
Abstract: "With increasing resources being devoted to the field of inspection and maintenance of buildings and structures, the use of robots to carry out this type of work is a natural development. In order to carry out survey/inspection maintenance and repair, it is currently necessary to gain access to the faces ...
Abstract: This paper deals with a new type of automated inspection robots with the inch worm mechanism in particular, for inspecting pipelines from the outside of pipe surfaces of constructions during and after construction. Since pipelines are necessary for life lines, these are laid out in many constructions. Therefore, the inspection ...
Abstract: Among other concerns, construction planning involves the choice of construction technology, the definition of work tasks, the estimation of required resources and durations, the estimation of costs and the preparation of a project schedule. A prototype knowledge intensive expert system to accomplish these tasks. CONSTRUCTION PLANEX, is described in ...
Abstract: "This paper develops a philosophy for the use of Artificial Intelligence (AI) techniques as aids in engineering project management. We start by classifying the subtasks associated with project management as taxonomy of separate functions and levels. We then assess the cognitive requirements for each project management subtask. Recognizing the cognitive ...
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Abstract: The purpose of this paper is to present the EUREKA / GEO project : a robot for finishing work on facades. This project joins presently three partners : the French building construction CBC company (Campenon Bernard Construction), coordinator of the project, the british Simon Engineering company, world leader in auto-elevators, ...
Abstract: Purdue University research on the application of robotics to construction began in the summer of 1986. It is based on the assumption that construction can benefit from the advanced automation technology available now in manufacturing. The current work activity spans in three directions: a. Design of a prototype Automated Construction Worker ...
Abstract: Cranes are used on nearly every building site as the primary means of materials movement, certainly during the critical early stages. Because of their cost it is prudent to optimize their use, such that on the well managed site the rate of work and the speed of the lifting operations ...
Abstract: Knowledge may be conveniently represented in Expert Systems for scheduling constructions by means of frames, or equivalently, by assemblies of feature sets (pairs of the type NAME_OF_FEATURE, VALUE_OF_FEATURE). Each frame is a description of a constraint which is to be observed in a feasible schedule. Such a representation is simple ...
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Abstract: This paper presents a survey of the information processing aspects of mobile robotics, including architecture, position estimation, world modelling, sensor data integration, vision, and planning. For each topic, a definition is offered, followed by a discussion of the major issues. Points for which a consensus seems to have emerged within ...
Abstract: The aim of this project is to tackle the problem of architects knowledge representation. Our approach is based on the belief that part of architects knowledge can be extracted from graphical documents and classical vocabulary. We propose an organisation of that knowledge through different points of views: form, function, construction and ...
Abstract: In a complex construction industry, such as that in the UK, the building process is predominantly that of assembling components made off-site. This requires that all the components are detailed, together with the methods of fixing, sufficiently early to ensure that the components are delivered to site at the right ...
Abstract: Solid modelling has been recognized as a powerful computer-aided design tool, being informationally complete and semantically well-formed. However, it is insufficient by itself to support the design process of complex artifacts such as buildings, since it lacks the abstraction properties provided by computer-aided drafting tools. This paper presents an integrated approach ...
Abstract: The link between CAD-systems and FE-programs seems to be very promising because they use in some sense the same data: geometry as well as some information about mechanical properties are normally contained in the CAD-system. The inclusion of FE entities in the Initial Graphics Exchange Standard (IGES) may be an ...
Abstract: The historical cultural setting of construction is a fiercely competitive market place. The predominant volume of work is done by more than a million small, closely held, weakly capitalized companies. Layer of contracts and subcontracts effectively spread risks but also restrict the capital formation required for significant technical progress. The ...
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Abstract: The works presented in this paper concern the use of a rule-based system, furtherly interfaced with the CAD system X2A, to provide and aid to the designer in building and solving multicriteria problems. Since the building quality is evaluated with several points of view (architectural, thermal, acoustical, economical), we can consider ...
Abstract: Over the past decade the consistent labelling problem has received considerable interest in Artificial Intelligence. In particular, machine vision, cryptography and theorem proving. Many algorithms have been developed for solving consistent labelling problems. A majority of these algorithms are based on heuristic search. Techniques such as constraint propagation and forward ...
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Abstract: This paper presents an expert system project, the main aim of which was to obtain information on the viability of the present microcomputer-based expert system shells in interpreting a collective agreement of the building industry in Finland. The same expert system was built using two different shells, Guru and Insight ...
Abstract: "Il est possible de definir le design comme un processus a la recherche d'un projet physique ou organisationnel qui, une fois realise, accomplira certains objectifs et se conformera a certaines contraintes . Ce procesus, qui d'habitude s'applique a des situations non triviales, eat caracterise par 1'exercise d'une pensee creatrice et ...
Abstract: La phase de conception des projets de batiments necessite Ie recours a des outils informatiques aujourd'hui bien maitrises : logiciels algorithmiqucs de calculs, de metres et de dessins. Par contre, la simulation du comportement des concepteurs qui, face a des enjeux techniques ou/et economiques, maitrisent tres tot les bons choix ...
Abstract: Cet article est une tentative de presentation du dessin d ' architecture, it plus precisement de la notion c'element d ' architecture dans Its systemes constructifs, vus sous l'angle d'un langage du projet, it d'un projet de langage , lors de la conception . Nous nous proposons d'analyser ce langage ...
Abstract: Cette communication expose plus particulierement les notions de representation de cornaissances dans Ies systemes de C.A.0 en Architecture.ll traite plus particulierement des techniques a base de structures de "frames" et de langages orentes obiets. La necessite davoir une structure dynamique pouvant nous alder a representer la semantique des "objets" manipules ...
Abstract: The advantage of production systems such as OPS5 over structured programming becomes most evident when they are applied to large, ill-structured problems. These applications are abundant in architectural design. Although efficient algorithms exist for some domains in architecture, empirical knowlede is essential in others. This situation calls for hybrid implementations ...
Abstract: Ce presentation decrit le developpement des systemes experts pour les applications en construction fait a la laboratoire de cout de construction du Centre de Recherche Technique de Finlande. Cinq systemes de demonstration sont decrits. Les applications sont: reglements contre l'incendie, repeinture des facades en bois, conseils sur les prets pour ...
Abstract: L'objet des travaux presentes ici concerne l'optimisation des methodes de conception de lhabitat dans un contexte de CAO. Partant d'une analyse critique du fonctionnement des systemes de CAO-Batiment actuels, nous nous interessons plus particulierement au probleme de l'aide aux modifications dune proposition. Assurer Ia qualite du pro jet, tout en ...
Abstract: "Le Societe BERTIN & Cie developpe un, prototype de systeme expert en diagnostic thermique, EXTHER, dont 1'objectif est 1'aide au conditionnement thermique d'enceintes et de systbmes clos. Les phenomenes thermophysiques mis en jeu dans ce type de problemes sont varies ( convection naturelle ou forcee , rayonnement , conduction ) ...
Abstract: Dans le processus de conception et de production d'un batiment, la gestion des informations relatives au projet et I'echange de ces informations entre les divers participants a I'acte de batir tient une place essentielle, ntais se heurte a des difficultes de mise en oeuvre qui ralentissent le travail individuel de ...
Abstract: This paper relates the problems encountered while developing and integrating modules for technical and cost evaluation into the CAAD system "X2A". Two major components were used to allow the system to evolve the modularity of its architecture and its construction around a data base management system working simultaneously with a set ...
Abstract: Les systemes de C.A.O. en Batiment sont susceptibles de servlr notamment aux fins suivantes : - 1. aide a l 'elaboration dune esquisse de batiment 2. evaluation d'une esquisse ou d'un Avant-Projet 3. realisation des documents et plans d'execution. Nous nous limiterons a revaluation technique et economique d'esquisse ou d' Avant-Projet. Apres avoir brievement ...
Abstract: Le systeme M.A R.S. a pour but de supporter le processus de Programmation Architecturale. Pour cela il propose une Modelisation qui permet de prendre en compte toutes les informations que I'architecte manipule lors de ce processus (texte, graphique, images, etc_). L'organisation propose permet de bestir un modele concret comme specialisation ...
Abstract: This paper describes the transfer of an expertise on the Architectural rules of composition formulated by the Architect Andrea PALLADIO, during the XVI century. The regular Architecture, in other words, the Architecture organized by rules, belongs Francois DE CHAMBRAY, constitute a traditional expertise, consequently few controversial. In this context, the ...
Abstract: Le projet d' architecture rapporte constamment le prob1eme de pro jet a son contexte. Le changement continu d'echelle nest done pas un jeu de representation pure mais devient un changement de language qui s' efforce de rendre l'espace du projet visible et controlable. Il est done desirable de depasser less methodologies ...
Abstract: To be profitable an AEC CAD system must be capable of rendering information supplementary to that which the user supplies. The transf ormation of a wire frame into structural equipements and fiinishings constitutes the base of a second generation of CAD SYSTEMS. This transformation depends on the integration as data of ...
Abstract: L'accroissement de la production et l'amélioration des conditions de travail dans la construction de batiments béton arme sont des problèmes cruciaux dans l'industrie de construction. Depuis longtemps les efforts remarquables ont été faits dans ce domaine au Japon. Les recherches sur les robots et les activités developpées par le gouvernement, ...
Abstract: Current research In construction automation Is focusing on automating Individual processes Instead of approaching the problem from a hierarchical systems viewpoint ; thus many systems being studied treat the construction site as a "hostile" environment and Incorporate many sensors to extract Information from the building. As a result, sensor and ...
Abstract: The aim of this paper is to explain current trends in the design of construction machines and the influence of electronics in the control of these units. The paper is based on information by German manufacturers at the BAUMAfair in Munich April 1986. Altogether three systems of considerable interest related to ...
Abstract: Construction robots operate in an environment very different from that of manufacturing robots. This environment is less structured. more complex and more dynamic than is the norm in manufacturing. In addition. construction robots are inherently mobile, as they are engaged in building or maintaining an immobile structure whihc is large ...
Abstract: Descriptions of architectural designs in terms of building assembly operations are examined and the use of these descriptions for evaluating automatic construction considered. Descriptions are generated using a grammatical fmalism consisting of shape rules based on the spatial relations between components. Similar rule based descriptions can be given for architectural ...
Abstract: En accord avec les innovations de méthodes de construction et les robotisations au chantier. les ingénieures de construction ont besoin des instruments plus convenables de direction pour la planification et la programmation. L'auteur a developpe une inethoclologie alternative de simulation pour le processus de construction au chantier. Ce modéle de ...
Abstract: Cet articleprésente les progr-ès récents clans le développementdes robots mobiles capablesde comportement intelligent dirige par un but. Sa contribution essentielte est la description d'une architecture logicielle qui permet au systeme robotique do coordonner action et perception en utilisant la connaissance. Cette architecture so decompose en deux architectures hiérarchiques pour le ...
Abstract: La mise en place progressive des techniques informatiques dans le secteur du Bâtiment laisse presager, a terme, des modifications importantes des methodes et des outils traditionnels. Une telle tendance est déjà marquee dans la fabrication des composants, notamment par I'introduction de machines automaiques dont certaines sont des robots utilisant des informations ...
Abstract: This paper - considers the opportuntiis for general robotic excavation based on available experience with utility pipe excavation, and on the broader base of of robotic technology. We first critique our robotic pipe excavator toidentify shortcomings and specializations that would be limiting to more robust and general excavation systems. ...
Abstract: Principaux thames abordes: Au Japon, dans le domaine de la construction, de nombreux robors ont ere developpes et utilises avec pour objectif l'automatisation des taches et par 'consequence la reduction du personnel, notamment celui affecte a des travaux penibles ou dangereux. Dans le present rapport nous presentons le SSR-3, robot ...
Abstract: According to the robotization of construction works, project managers will be more required to understand all of the activities in the construction site. Therefore, relevant management tools are very essential for them in meeting the goal of projects. The authors pointed out the needs of computer graphics regarding the planning ...
Abstract: The intent of this paper is to identify the basic factors involved in the successful application of robotic systems to the preliminary site investigations of ground conditions in hazardous waste areas. Specific attention is directed to the human-robot-environment interations in hazardous landfill.
Abstract: "The potential for use of robots in construction, agriculture, mining, undersea and space is presently being explored in research and prototype systems. This paper reviews the history and justification for this development including consideration of both technological and economic constraints. The current worldwide status of implementation of robots in construction ...