2015 Proceedings of the 32nd ISARC, Oulu, Finland
Hung-Ming Chen, Kai-Chuan Chang
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 ...
Keywords: Cloud Computing, Big Data Analysis, BIM
Vito Getuli, Tommaso Giusti, Pietro Capone
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 ...
Keywords: Decision Support Systems, Project Information Management, Construction Management, Constructability.
Kyungha Lee, Young-hyun Park, Ghang Lee, Wooyoung Jung, Seungjae Lee, Hwayeon Lee
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 ...
Keywords: Building Information Modeling (BIM), Knowledge base system, Key Performance indexes (KPIs), Best practice
Daeyoon Moon, Soonwook Kwon, Thomas Bock, Hyunglyul Ko
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 ...
Keywords: Augmented Reality, 3-D Visualization, VuzixSmart-Glasses, Pipe-assembly
Jochen Teizer, Olga Golovina, Di Wang, Nipesh Pradhananga
Abstract: The construction industry measures worker safety performance through lagging indicators such as counting numbers of illnesses, injuries, and fatalities. Active leading indicators, such as capturing hazardous proximity situations between ground workers and heavy construction equipment, provide an additional metric for construction site personnel safety performance without incurring worker accidents. This ...
Keywords: Accidents, injuries, and fatalities; heavy construction equipment; proximity and struck-by hazards; lagging and leading indicators; safety; workforce; risk.
Simon Vilgertshofer, André Borrmann
Abstract: In the scope of planning and realizing large infrastructural projects, it is reasonable to create product models as multi-scale models comprising multiple levels of detail (LoD). To avoid inconsistencies among the different LoDs, it is necessary to apply parametric modeling techniques which allow the automatic preservation of the model's consistency ...
Keywords: Product Modeling, Level of Detail, Multi-scale Modeling, Graph Transformation, Parametric Modeling
Jun Yang, Zhongke Shi, Ziyan Wu
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 ...
Keywords: Worker, Activity recognition, Dense trajectory, Machine learning
Salman Azhar, Andrew Jackson, Anoop Sattineni
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 ...
Keywords: Mobile Technologies, Apps, Smart Phone, Tablet, Project Management
Kaijian Liu, Mani Golparvar-Fard
Abstract: Today, the availability of multiple cameras on every jobsite is reshaping the way construction activities are being monitored. Research has focused on addressing the limitations of manual workface assessment from these videos via computer vision algorithms. Despite the rapid explosion of these algorithms, the ability to automatically recognize worker and ...
Keywords: Activity Analysis, Construction Productivity, Video-based Monitoring, Workface Assessment, Crowdsourcing
Soungho Chae, Ryo Mizutani
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 ...
Keywords: process control, camera images, monitoring, tower crane
Seo-Kyung Won, Chang-Han Kim, Choong-Hee Han, Junbok Lee
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 ...
Keywords: Data Breakdown Structure, Process, Pipeline, Permafrost Area, Information Management
Hemanta Doloi, Koshy Varghese, Benny Raphael
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 ...
Keywords: BIM, Social Networks, BIM integration, construction industry
Faridaddin Vahdatikhaki, Amin Hammad
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. ...
Keywords: Dynamic Equipment Workspace, Earthwork Equipment, Real-time Location Systems
Emile Zankoul, Hiam Khoury, Rita Awwad
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 ...
Keywords: Construction Management; Simulation Modeling; Discrete-Event Simulation, Agent-Based Modeling; Earthwork;
Nan Li, Zheng Yang, Chao Tang, Nanlin Chen, Burcin Becerik-Gerber
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 ...
Keywords: Energy conservation measure, Building energy simulation, Energy model, Occupancy, Calibration
Mauricio Toledo, Camila Matabenitez, Miguel Mora
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 ...
Keywords: 4D model, BIM, Excavation, Civil works,
Construction strategy, Soil pixel
Purva Mujumdar, J. Uma Maheswari
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 ...
Keywords: Iteration, Cycles/loops, Construction projects, OpenSTAAD, STAAD
Sungwoo Moon, Jongwon Seo
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 ...
Keywords: Smart glass application, Google Glass, Information exchange, Safety monitoring
Instructions; Authors; ISARC 2015
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 ...
Keywords: Building Information Modeling, Big Data, Smart Cities
Thomas Hilfert, Markus König
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 ...
Keywords: virtual reality, visualization, construction, engineering
Yohei Sugimoto, Hiroshi Seki, Takahiro Samo, Norihiko Nakamitsu
Abstract: To construct nuclear power plants no later than delivery dates for certain, Hitachi adopts the 'open-top construction method.' This method requires civil and mechanical installation works to be carried out concurrently. Therefore, civil and mechanical contractors must share cranes for carrying in materials such as rebar, piping components, and equipment. ...
Keywords: Construction, Nuclear power plant, Crane deployment, Utilization rate, 4D-CAD, Statistical estimation
Milad Rajabi, Thomas Bigga, Mathias A. Bartl
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 ...
Keywords: MEP; RIB iTWO; QTO; Building Model; logics
Tapio Heikkilä, Pentti Vähä, Tuomas Seppälä
Abstract: Wood and combinations of wood and plywood is the most traditional formwork in mould-based shaping of construction components. This kind of formwork usually doesn't include curvatures, but favours straight lines and sharp corners yielding in angular shape concrete building blocks. In this paper we describe a novel robotized method for ...
Keywords: Mould making, manufacturing of concrete elements with specific shape, automatic path planning, robotized method
Viorica Patraucean, Iro Armeni, Mohammad Nahangi, Jamie Yeung, Ioannis Brilakis, Carl Haas
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. ...
Keywords: Building Information Model (BIM), as-built modelling, as-built BIM, as-designed BIM
Mariangela Benedettelli, Berardo Naticchia, Alessandro Carbonari, Michele Pascucci
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 ...
Keywords: Energy Audit, Air Change Rates, Experimental Evalutation
Yong Xiao, Chen Feng, Yuichi Taguchi, Vineet Kamat
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 ...
Keywords: Dimension Information, RGBD Camera, 3D Point Clouds, Compliance Checking
Samad Sepasgozar, Samsung Lim, Sara Shirowzhan, Peter (Y.M.) Kim, Zahra Moussavi Nadoushani
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 ...
Keywords: Implementation, lidar, Construction technology,
Building Information Modelling; laser scanner
Faridaddin Vahdatikhaki, Amin Hammad
Abstract: The construction industry accounted for more than 17% of fatal work injuries, i.e., 806 counts of death, in the U.S. in 2012. Approximately 75% of struck-by fatalities in the construction industry are reported to have been caused by heavy equipment. Researchers have addressed the need for the enhanced safety of ...
Keywords: Risk Map, Visibility and Proximity Hazards, Earthwork Equipment, Safety, Real-time Simulation
Chen Feng, Suyang Dong, Kurt M. Lundeen, Yong Xiao, Vineet R. Kamat
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 ...
Keywords: Marker-based Pose Estimation, Excavation Monitoring and Guidance, Excavation Safety
Kyuhyup Lee, Soonwook Kwon, Joongwhan Shin, Gyusung Choi
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 ...
Keywords: VDI(Virtual Desktop Infrastructure), Cloud Computing, BIM, Design Collaboration, Virtualization
Hyunsoo Lee, Sangik Lee, SeoKyung Park, Jin-Kook Lee
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 ...
Keywords: BIM (Building Information Modeling), Automated Design Assessment, Rule-checking, Translator, Computer-readable form
Seongki Lee, Shabtai Isaac, Thomas Bock
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 ...
Keywords: Process Information Modeling System, Ontology, Construction Automation, Simulation
Cornelius Preidel, André Borrmann
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 ...
Keywords: Automated Code Compliance Checking, Building Information Modeling, BIM, Visual Programming, VPL, Visual Code Checking Language, VCCL
Alexander Braun, Sebastian Tuttas, André Borrmann, Uwe Stilla
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, ...
Keywords: progress monitoring, photogrammetry, process scheduling,
Qian Wang, Jack C.P. Cheng, Hoon Sohn
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) ...
Keywords: Automated Dimension Estimation, Precast Element, Terrestrial Laser Scanner, Building Information Modeling, Irregular Shape
V. Paul C. Charlesraj, Anil Sawhney, Manav Mahan Singh, Aiswarya Sreekumar
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 ...
Keywords: Building Information Modeling, BIM Studio, Curricular Tool, Construction Project Management, Project Management Education
Varun Kasireddy, Burcu Akinci
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 ...
Keywords: Automation, Robotics, Laser scanning, Bridge Information Modeling, As-is BrIM, Bridges, Bridge Inspection, Point Cloud, Deviation Analysis, Infrastructure Modeling, Semantic-rich bridge models
Miguel Mora, Juan Sandoval, Mauricio Toledo
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 ...
Keywords: IFC, Tunneling, Interoperability
Beda Barkokebas, Samer Bu Hamdan, Mohamed Al-Hussein, Juan D. Manrique
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 ...
Keywords: BIM, Cost, Estimation, Automation, Coordination
Julian Kang, Jaeheum Yeon, Swarochisa Kangregula
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 ...
Keywords: BIM, CAVE, Advanced Computing
Sijie Zhang, Jochen Teizer, Nipesh Pradhananga
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 ...
Keywords: construction safety and health, building information modeling, workspace modeling, global positioning system.
Tae Wook Kang, Chang Hee Hong
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 ...
Keywords: IFC, CityGML, LOD, multiprocessing, mapping, conversion
Angelo Luigi Camillo Ciribini, Silvia Mastrolembo Ventura, Michela Paneroni
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 ...
Keywords: Building Information Modeling (BIM), Interoperability, Model Checking, 4D Modeling
Po-Han Chen, Thanh Chuong Nguyen
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 ...
Keywords: Green Buildings, LEED, Sustainable construction
Carlo Biagini, Pietro Capone, Vincenzo Donato, Nora Facchini
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 ...
Keywords: BIM, Historical Building Information Modeling, Site Modeling, Site Simulation, Restoration Interventions Management.
Mika Jaakkola, Pasi Toppi
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 ...
Keywords: Model based construction, BIM, quality assurance, inframodel
Humayun Biswas, Frédéric Bosché, Ming Sun
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 ...
Keywords: Laser Scanning; BIM; 3D; Point clouds; Planning; Quality; Precision; Covered surface; Occlusion
Manu Marttinen, Rauno Heikkilä
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 ...
Keywords: Asphalt Pavement; Information
modelling; Maintenance; Mobile laser scanning;
SeoKyung Park, Hyunsoo Lee, Sang-Ik Lee, Jaeyoung Shin, Jin-Kook Lee
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 ...
Keywords: Automated building design permit system, Classification, Korea building code, BIM (building information modeling)
Hyojoo Son, Changwan Kim, Yelda Turkan
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) ...
Keywords: Laser scanning, BIM, As-built BIM, Scan-to-BIM, MEP systems
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 ...
Keywords: Construction, Manufacturing, Human error, Robotics, BIM
Joonghwan Shin, Soonwook Kwon, Thomas Bock, Daeyoon Moon
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 ...
Keywords: ELIS(Embedded Lift Information System), Sensor fusion, Real-time control, Automated Construction
Donghyun Kim, Soonwook Kwon, Suwan Jung, Sooyeal Park, Jaewoo Park, Jongwon Seo
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 ...
Keywords: Miniature Unmanned Aerial Vehicles (UAVs), Optimal algorithm, Generating 3D model, Earthwork
Maddalena Nurchis, Mikko Valta, Massimo Vaccarini, Alessandro Carbonari
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 ...
Keywords: real-time monitoring, environmental tracking, building control systems
Kien Dinh, Nenad Gucunski, Jinyoung Kim, Trung Duong, Hung La
Abstract: Reflection amplitude at top rebar layer has been used as a main criterion for evaluating attenuation of ground-penetrating radar (GPR) data from concrete bridge decks. However, a recent study has pointed out the limitation of this practice. Motivated by that same research, the current paper presents a robust method for ...
Keywords: Ground Penetrating Radar (GPR), Nondestructive Evaluation (NDE), Concrete Bridge Decks, Bridge Inspection.
Sungwook Lee, Hyojoo Son, Changwan Kim
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 ...
Keywords: Automated measurement, Laser scanning, Pipe slope
Jehyun Cho, Ghang Lee, Seungjae Lee, Hyunoh Kim
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 ...
Keywords: fire evacuation, exit sign, system stability, shortest path algorithm, server-independent system
Taehoon Hong, Kwangbok Jeong, Choongwan Koo
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 ...
Keywords: Image processing, Infrared thermography, Building integrated photovoltaic system (BIPV).
Magdy Ibrahim, Osama Moselhi
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 ...
Keywords: Indoor Localization, Inertial Measurement Unit, 9DoF, Direct Cosine Matrix Algorithm
Alexey Bulgakov, Sergey Emelianov, Thomas Bock, Daher Sayfeddine, Vladimir Erofeev
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 ...
Keywords: Quadrotor, Site management, Structure inspection, particle swarm optimization
Jongwon Seo, Hakjune Lee, Leonildo Cassule, Moon Sungwoo
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 ...
Keywords: Fleet Management; Machine Guidance;
Earthwork; Energy-efficiency; Construction
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, ...
Keywords: Construction workers-on-foot, hazardous proximity situations, injuries and fatalities, heavy construction equipment, proximity detection and alert technology, magnetic field sensing, construction safe
Jussi Leinonen, Mika Jaakkola, Heikki Onninen
Abstract: This research paper describes applicability of mobile laser scanning in road depression measurements. The research was commissioned by the Finnish Transport Agency and performed by Destia Ltd. The applicability was researched by examining accuracy, precision, and repeatability of the laser scanning technology. Two about one kilometre long road segments near ...
Keywords: Mobile Laser Scanning, Lidar, Point Cloud, Road Depression, 3D-model
Khalegh Barati, Xuesong Shen
Abstract: Construction and mining industries are using more than 20% of all non-road engines and listed as the third largest contributor to greenhouse gases (GHGs) emission globally. GHGs emitted from engines in construction and mining sites have not been fully investigated yet. Normally, government agencies and construction contractors estimate emitted pollution ...
Keywords: Greenhouse gases, automated data collection, portable emission measurement system, pollutants emission rate, construction and mining machinery, emission regulation
Mohammad Nahangi, Jamie Yeung, Carl Haas, Scott Walbridge, Jeffrey West
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 ...
Keywords: Realignment and refit; 3D imaging; Robotics; Inverse kinematics; As-built status assessment.
Hyojoo Son, Jongchul Na, Changwan Kim
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 ...
Keywords: As-built information, Progress measurement, 3D point clouds
Ranjith K. Soman, Benny Raphael, Koshy Varghese
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 ...
Keywords: Wireless sensor network, Segmental construction, Sensor placement, ZigBee, Information theory, Launching girder, Automated construction monitoring
Robin Kuenzel, Marcus Mueller, Jochen Teizer, Alexander Blickle
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 ...
Keywords: automation, equipment, lean organization and management, logistics management, multi-agent systems, road infrastructure construction, sensors, supply chain.
Sangik Lee, Hyunsoo Lee, SeoKyung Park, Jaeyoung Shin, Hyunjung Kim, Gyuyeob Jeon, Jin-Kook Lee,
Abstract: Indoor airborne dust concentration is one of the most adverse factors for human health. Especially, inhalable fine particles under 2.5micrometres in diameter (PM2.5) easily permeate into human body causing serious respiratory diseases. The problem is that the air pollutions are hard to be detected with human sense organs alone. Therefore, ...
Keywords: Area Calculation Method, BIM, Automated Building Design Review
Simon Stent, Cédric Girerd, Peter Long, Roberto Cipolla
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 ...
Keywords: Automation, Robotics, Computer Vision, Image Processing, Tunnel Inspection, Tunnel Monitoring
Ming-Chang Wen, Cheng-Hsuan Yang, Yie Chen, Er-Xuan Sung, Shih-Chung Kang
Abstract: This research provides a stereoscopic vision system on an unmanned vehicle system (UVS) for disaster inspection. Taiwan is a disaster-prone area where earthquakes, typhoon, floods and debris flow happen frequently. These disasters usually cause terrain transformation and building collapse that raise the risk for human inspection. However, authorities need instant ...
Keywords: UAS, Disaster, inspection, image processing, remote sensing
Sheng-Yung Cheng, Tai-Yen Kuo, Ci-Jyun Liang, Shih-Chung Kang
Abstract: A tower crane can be reduced the sway oscillation easily by controlling the rotation acceleration. with the proposed open-loop fast control method which is operated by controlling acceleration, the sway angle of suspended load can be maintained during the movement as well as reduced oscillation during and at the end ...
Keywords: Crane, anti-vibration, scaled-model
Joerg Guettler, Christos Georgoulas, Thomas Bock
Abstract: Elderly people usually adverse new technologies, especially robotic system solutions, due to interrelated difficulties concerning their setup, control and operation. An intuitive gesture control algorithm for the Jaco Robotic Arm has been developed, via the Leap Motion Controller gestured based sensor. Instead of just to instruct the Jaco Robotic Arm ...
Keywords: Human-Machine-Interface, Sensing, Service Robotics, Real-time Signal Processing, Ambient Assisted Living
Duanshun Li, Sheng Mao, Ming Lu, Xuesong Shen
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 ...
Keywords: TBM, Navigation, Analytical, Error propagation, accuracy, sensitivity
Dhinesh K. Sukumar, Seongki Lee, Christos Georgoulas, Thomas Bock
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 ...
Keywords: Virtual Reality, Building Information Modeling, Robot Oriented Design, Assembly Process, Oculus VR
Fumihiro Inoue, Satoshi Yuzawa, Satoshi Sato, Shinya Watanabe
Abstract: This paper describes on the estimation method of compressed strength for the concrete construction such as highway roads, large bridges and institution, and the autonomous mobile robot with that the small sized grinding drill. In the control using the torque motor, the feed rate of drill is expected to be ...
Keywords: Estimation Method, Concrete Strength, Grinding Drill, Torque Motor Control, Mobile Robot
Seungyeol Lee, Jeon Il Moon
Abstract: Glass panel (curtain-wall, glass ceiling etc.) is a type of building material for interior/exterior finishing. The demand for larger glass panel has increased along with the number of high-rise buildings and an increased interest in interior design. Typical construction machineries are, however, not adequate for installing the glass panel and ...
Keywords: Progress, Robot, Glazing Process, Construction Site
Kepa Iturralde, Thomas Linner, Thomas Bock
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 ...
Keywords: support body, façade, refurbishment,
Alexander Liu Cheng, Christos Georgoulas, Thomas Bock
Abstract: Physical and cognitive decline associated with the natural aging process require the implementation of integrated and ambulant assistive technologies for the elderly to sustain independence with respect to Activities of Daily Living (ADLs). These technologies, framed in the context of Ambient Assisted Living (AAL), instantiate environments where sensor modules and ...
Keywords: Ambient Assisted Living, Service Robotics, Human-Machine-Interface, Robot Vision, Automation and Robotics
Luan Nguyen, Hung La
Abstract: Three dimensional (3D) mapping of environments has gained significant research interest over the last decades because of its important need for environmental modeling and monitoring. There are many successful research efforts in this field, and even it has been turned into commercial products such as Velodyne Lidar. However, due to ...
Keywords: Robotics, 3D Mapping, Real-time 3D Mapping
Kurt M. Lundeen, Suyang Dong, Nicholas Fredricks, Manu Akula, Vineet R. Kamat
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 ...
Keywords: Marker-based Pose Estimation, Excavation Monitoring and Guidance, Excavation Safety, Alternative Sensor Design
Tatsuo Arai, Kazuto Kamiyama, Pakpoom Kriengkomol, Yasushi Mae, Masaru Kojima, Mitsuhiro Horade
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 ...
Keywords: hexapod, mobile manipulation, inspection, underside, bridge
Jacek Olearczyk, Zhen Lei, Brian Ofrim, Sang Hyeok Han, Mohamed Al-Hussein
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 ...
Keywords: Mobile crane lifts, Lift logistic, Site layout, Algorithm, Visualisation
Cheng-Hsuan Yang, Ming-Chang Wen, Yi-Chu Chen, Shih-Chung Kang
Abstract: This paper provides an innovative approach for bridge inspection by optimizing unmanned aerial system (UAS). A rotorcraft prototype, a camera gimbal mechanism and a workflow is developed in this research. The rotorcraft is used to carry the camera gimbal for capturing image. Since visual inspection is a main method to ...
Keywords: Bridge inspection, UAS, crack inspection, image processing, robotics
Yong-Seok Lee, Si-Hwan Moon, Myeong-Su Gil, Min-Sung Kang, Seung-Hoon Lee, Sang-Ho Kim, Dae-Hie Hong, Chang-Soo Han
Abstract: The highest incidence of disaster at a construction site is about 33.1% and this disaster occurs when an excavator is operated in dangerous site that can have rollover, confinement, and fall. The development of Unmanned excavator is realized briskly for the safety of the operator from these dangers. The system ...
Keywords: Unmanned excavator, Conversion-less system, Workspace Mapping, Remote Contorl
Bharadwaj Mantha, Chen Feng, Carol Menassa, Vineet Kamat
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 ...
Keywords: Mobile indoor robots, occupant comfort, data
collection, and building energy monitoring.
Susanne Rinneberg, Jochen Teizer, Stephan Kessler, Willibald A. Günthner
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 ...
Keywords: attachment, human factors, quick couplers, RF identification technology, safety, visibility.
Matti Immonen, Rauno Heikkilä, Tomi Makkonen
Abstract: Partly automated blade control of excavator has been studied. Main focus of the study were to find means to control one of the excavator's work cylinders automatically while machine operator controls the rest of non-automated work cylinders. This article concentrates on the suitability of a certain inclinometer sensor for partly ...
Keywords: Inclinometer, inclinometer sensor pendulum experiments, partly automated excavator
Seied Mohammad Langari, Amin Hammad
Abstract: Improving safety and productivity of earthwork operations is of paramount importance, especially in congested sites where collisions are more probable. Automated Machine Guidance and Control technology is expected to improve both safety and productivity of earthwork operations by providing excavator operators with higher level of support regarding the path planning ...
Keywords: Earthwork, Excavator, Rapidly exploring random tree
Thomas Camus, Salam Moubarak
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 ...
Keywords: Tunnel Boring Machine, excavation, cutting tool replacement
Sunghoon Eom, Seungyeol Lee, Daejin Kim, Jeon Il Moon
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 ...
Keywords: Management, Single-user multi-robot teleoperated system, handling large valve, offshore plants
Samer Bu Hamdan, Beda Barkokebas, Juan D. Manrique, Mohamed Al-Hussein
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 ...
Keywords: Panelized construction, Inventory management, simulation, Building Information Modeling
Seongki Lee, Wen Pan, Thomas Linner, Thomas Bock
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 ...
Keywords: Deconstruction Process, Agent-Based Modeling, Process Optimization, Complex Adaptive System
Riccardo Pontoni, Martina Giuliani, Alessandro Carbonari, Massimo Vaccarini
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 ...
Keywords: Automated control policies, energy savings, advanced thermal simulation.
Wen Pan, Seongki Lee, Thomas Bock
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 ...
Keywords: Active building system, Adaptable, Advanced construction,
Stathis Eleftheriadis, Dejan Mumovic, Paul Greening, Angelos Chronis
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 ...
Keywords: BIM, LCA, Structural Analysis, Steel Frames, Structural Optimisation
Barbara Orgiano, Emanuela Quaquero, Martina Basciu
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 ...
Keywords: Green Public Procurement, Building process, Building Life Cycle
Andrzej Karlowski, Jerzy Paslawski
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 ...
Keywords: on-line management, flexibility, construction process
Er-Xuan Sung, Meng-Han Tsai, Shih-Chung Kang
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 ...
Keywords: decision support system, information visualization, real-time system, flood hazard warning
Pawan Pandey, J. Uma Maheswari
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 ...
Keywords: Work study, Multiskilling, Dynamic scheduling, repetitive construction.
Natalia Buzalo, Pavel Ermachenko, Alexej Bulgakov, Thomas Bock
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 ...
Keywords: Biosphere Compatibility of Cities, Mathematical Modelling, Photobioreactor, Treatment Plants
Ali Akbarnezhad, KCG Ong
Abstract: The renovation of the interior finishes of residential buildings starts with a soft strip stage involving the removal of the existing fittings, furniture, and finishes, especially floor and wall finishes. Ceramic and stone tiles are among the most common types of floor and wall surface finishes used. Such existing finishes ...
Keywords: Concrete, Finish Removal, Microwave, Automation
Samad Sepasgozar, Steven Davis
Abstract: Implementation of new technology is often required when a company wants to improve productivity and enhance safety in construction. Many studies in the literature have focused on new technology applications in the construction industry and how it can improve productivity or solve a complex problem. However, the literature has overlooked ...
Keywords: Implementation, introducing technology, post adoption, construction technology, heavy equipment, tools.
Jiayu Chen, Bin Ren, Xinyi Song, Xiaowei Luo
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 ...
Keywords: Construction Safety; Mental Workload;
Abstract: Despite recent efforts towards protecting construction personnel from equipment which operates in too close proximity, most of the existing and more advanced accident prevention techniques focus on approaches using sensing technologies. These can alert workers-on-foot or personnel operating the equipment in real-time. The drawbacks that some of these technologies have, ...
Keywords: equipment design and manufacturing, infrared, laser, magnetic fields, prevention through design, pro-active, proximity detection and alert technology, RADAR, radio frequency, real-time, sonar, vision.
M. Reza Hosseini, Mojtaba Maghrebi, Raufdeen Rameezdeen, S. Travis Waller
Abstract: One of the main concerns of construction site managers, as well as insurance companies in the construction industry is the large number of construction accidents. In this study all the accidents occurred on construction sites within the period of 2002-2013 in South Australia (SA) have been considered to investigate the ...
Keywords: Construction Accidents, Construction Projects, South Australia
Tomi Makkonen, Rauno Heikkilä, Annemari Kaaranka, Marika Naatsaari
Abstract: Laser scanned point clouds are important part of the modern work processes in mine industry. Inertia corrected handheld laser scanners are new type of apparatus commercially available from the year 2013 to gather point clouds. These devices are fast to use as the person scanning can walk when holding the ...
Keywords: handheld laser scanner; point cloud; accuracy; tunnel
Carlo Argiolas, Martina Basciu, Emanuela Quaquero, Barbara Orgiano
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 ...
Keywords: Low energy buildings, Bayesian networks, CO2 emissions
Ahmed W. A. Hammad, Ali Akbarnezhad, David Rey
Abstract: Site layout planning has been widely investigated in the literature as a means of minimising transportation costs, improving safety etc. The majority of the research conducted focuses on developing adequate formulations capable of producing optimum results. However, there is a lack of consensus on a particular format to implement for ...
Keywords: Construction site layout planning; Optimisation; Mixed Integer Programming
James Wong, Judy Zhang, Julian Lee
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 ...
Keywords: Hong Kong, construction industry, innovation, R&D, future vision
Jaeyoung Shin, Hyunsoo Lee, Sangik Lee, Seokyung Park, Hyunjung Kim, Jin-Kook Lee
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 ...
Keywords: Assessment of Building Circulation, Quantitative data, BIM
Naoto Mine, Soon Han Wai, Ting Chuan Lim, W. Kang
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 ...
Keywords: formwork, work study, process analysis, man-hour, statistical analysis
Morvarid Farzanehrafat, Ali Akbarnezhad, Parviz Ghoddousi
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 ...
Keywords: Social Sustainability Criteria, Construction Projects, Project Lifecycle.
Pekka Tyni, Rauno Heikkilä, Ilkka Hynynen, Marko Paavola
Abstract: In the research, the automated adjustment of rod mill grinding based on the frequency analysis of acoustic emission was studied. The comminution process was monitored using acoustic emission surveying (AE) and further spectrum analysis. The aim was to clarify whether the acoustic emission could be used to determine the progress ...
Keywords: rod mill grinding, acoustic emission,
spectrum analysis, vibration analysis
Zahra Moussavi Nadoushani, Ali Akbarnezhad
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 ...
Keywords: Structural Systems; Embodied Carbon;
Extraction and Manufacturing Phase;
Xueqing Lu, Steven Davis
Abstract: Safety decisions made by construction workers on-site directly affect the rate of injury. Virtual Reality safety simulators have been created for training workers in site safety. This paper examines the effect that sound has on the realism of virtual reality simulators and the effect that virtual reality training has on ...
Keywords: Virtual reality simulator, Safety training, Sound, Construction
Teemu Kivimäki, Rauno Heikkilä
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 ...
Keywords: Infrastructure; BIM; Cloud
Collaboration; Real-time; Quality Control;
Ayman El Hakea, Soliman Abu-Samra, Ossama Hosny, Moheb Iskander, Hesham Osman
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 ...
Keywords: Optimization, Maintenance, Repair, Cost, Rubble Mound, Coastal, Structures, Markov Chains, Genetic Algorithms
Frédéric Bosché, Baptise Biotteau
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 ...
Keywords: Quality control, surface, flatness, regularity, laser scanning, frequency analysis, wavelet transform
Jozef Gasparík, Sylvia Szalayová
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 ...
Keywords: Construction lifts, optimal method, energy consumtion
Nael Zabel, Maged Georgy, Moheeb Ibrahim
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 ...
Keywords: Dynamic Risk Map, Ant colony model, Risk Severity, Mega Projects
Seth Daniel Oduro, Santanu Metia, Hiep Duc, Quang P. Ha
Abstract: Emissions from motor vehicles need to be predicted to ensure appropriate air quality plans. Two most popular techniques for emission data collection are the on-board measurement and dynamometer testing. This research work explores the use of a nonparametric regression algorithm known as the multivariate adaptive regression splines (MARS) in comparison ...
Keywords: Carbon Monoxide, On-Board Emission Measurement System, Chassis Dyanamometer Testing System, Emission.
Tomi Makkonen, Rauno Heikkilä, Jouko Jylänki, Stephen Fraser
Abstract: The decision to reopen a mine abandoned for 30 years is going to be complex because a significant financial commitment is going to depend on a re-evaluation of both the remaining mineral resource and the surviving mine infrastructure. Historical pre-digital records will need to be assessed and new data acquired ...
Keywords: mine; reopening mine; BIM; historical data, point-cloud laser scans
Sooji Ha, Hoyoung Jeong, Kinam Kim, Hongjo Kim, Hyoungkwan Kim
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 ...
Keywords: Construction Site, Safety Management, Image Processing, Computer Vision, Worker, Equipment, Tracking, Monitoring
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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 ...
Keywords: Construction Automation, Robotics in Construction, Ambient Integrated Robotics, S-Curves