2007 Proceedings of the 24th ISARC, Kochi, India
M K Sunil
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.
Keywords: No keywords
Abstract: Construction has conventionally been a labour intensive process. Until recently, automation of construction processes was not considered to be economically and technologically sustainable in emerging economies.
Keywords: Construction Automation, Technology Position Map, Indian Construction, Robotics
Abstract: Robots were originally introduced in the production of industrialized building components and modular housing. Later mobile robots were developed for special on-site construction tasks
Keywords: Automation, Robotics, Industrialization, Building Components
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.
Keywords: No keywords
Abstract: The nowadays smart homes try to move from conventional remote-controlled houses to intelligent environments. The focus has been made in blending high-tech computing into the home environment and in substituting the interaction with a box on a table by different friendly & intelligent HMI devices. Nevertheless, the introduction of real ...
Keywords: Smart Homes, Personal Robots, Apartments Design, Human-Robot-Home Interaction
Hiam M. Khoury, Vineet R. Kamat
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 users field of view at any given time ...
Keywords: Context-aware Computing, WLAN, GPS, Tracking, Information Retrieval
S. Purushothaman, P. K. Abraham
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 ...
Keywords: OFDM, Impulse Radio, TDOA, PSD, CRB
Jochen Teizer, Davis Lao, Menache Sofer
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. ...
Keywords: Ultra-Wideband, Real-time, Sensing, Monitoring, Tracking, Emergency Response, Safety, Productivity
Jung Yeol Kim, Hyun Suk Yoo, Soon Wook Kwon, Moon Young Cho
Abstract: Tunnel construction is being increased rapidly in Korea. About 60 percent of total tunnels have been constructed for the last 10 years. So systematic tunnel measurement and maintenance system have been needed. Vibrating wire type sensor is widely used in tunnel measurement system because of their stabil-ity and durability. Vibrating ...
Keywords: Tunnel, Measurement, Zigbee, Wireless
Pekka Kilpeläinen, Rauno Heikkilä, Tommi Parkkila
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 ...
Keywords: Road Construction, Pavement, Automation, Wireless Communication
Min-Yuan Cheng, Li-Chuan Lien, Ming-Hsiu Tsai, Wei-Nien Chen
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 ...
Keywords: Open-Building, Support System, Infill System, Radio Frequency Identification, Maintenance Management
Geetha Kamakshi Gajamani, Koshy Varghese
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 ...
Keywords: RFID, Schedule Updating, Inventory Updating, Project Monitoring
Tomoya Kaneko, Koji Hamada, Tetsu Kondo
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 ...
Keywords: Logistics, Radio Frequency Identification, Supply Chain Management, Traceability
Jae-Hong Song, Nam-Su Lee, Su-Won Yoon, Soon-Wook Kwon, Sangyoon Chin, Yea-Sang Kim
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 ...
Keywords: Material management, Logistics, RFID(Radio Frequency Identification),WSN (Wireless Sensor Network)
Yan-Chyuan Shiau, Jung-Yi Tsai, Shiao-Jing Cheng
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 ...
Keywords: RFID, PDA. Fire Rescue, Building
Alan M. Lytle
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 ...
Keywords: 3D Imaging System, Flash LADAR, 3D Range Camera, Sensor Model
Geraldine S Cheok, Kamel S. Saidi, Alan M. Lytle
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. ...
Keywords: 3D Imaging Systems, ASTM E57, Laser Scanning, Ranging, Standards, Test Protocol
Soungho Chae, Naruo Kano
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 ...
Keywords: Location Information, Stereo Camera, Image Processing, Project Control
Samir El-Omari, Osama Moselhi
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 ...
Keywords: 3D Laser Scanning, Photogrammetry, Progress Reporting, Data Acquisition, Automation
G. Paul, D. K. Liu, N. Kirchner, S. Webb
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 ...
Keywords: Exploration, Collision Avoidance, Bridge Maintenance, Inverse Kinematics
Xiangyu Wang, Ngai Kwok
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 ...
Keywords: Augmented Reality, Autonomous Robot, Built Environment, Inspection
Joo-Heon Kim, Ung-Kyun Lee, Hun-Hee Cho, Kyung-In Kang
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 ...
Keywords: Safety Management, Infrared Sensor, Ultrasonic Sensor
B. Raphael, K. W. Tham, S. C. Sekhar
Abstract: This paper presents a methodology for the integrated control of Indoor Environmental Quality. The most important aspect of the methodology is the treatment of the task as a multi-objective optimization problem. Appropriate control actions that achieve reasonable tradeoffs among conflicting objectives are selected through multi-objective optimization in which predictive ...
Keywords: Building Automation, Control, Multi-Objective Optimization, Indoor Environmental Quality
Masoud Poshtiban, Reza Banaei Khosroushahi, Somayyeh Poshtiban
Abstract: In this paper, a novel idea to prepare indoor fresh air by an environmentally friendly way is proposed. In this design we are inspired by traditional windcatchers which have been being used for centuries in torrid region of Iran. Theirs unique feature of in-dependency to costly energy sources have made ...
Keywords: Windcatcher, Badgir, Fuzzy Controller
M. De Grassi, B. Naticchia, A. Carbonari
Abstract: Improving the sound transmission loss (STL) of glazed facades is needed, as required by the 89/106/CEE European Directive, which imposes high STL values for building facades, whose weak part is generally constituted by the presence of windows, sometimes making them not adequate to observe the recently enacted requirements. As passive ...
Keywords: ASAC System, Sound Transmission Loss, PZT Actuators, Finite Element Analysis
P. Chotiprayanakul, D. K. Liu, D. Wang, G. Dissanayake
Abstract: This paper proposes a three-dimensional force field (3D-F 2 ) method for efficient motion planning and collision avoidance of a 6DOF manipulator in complex and dynamic environments while keeping the planned end-effectors path and speed unchanged. The 3D-F 2 is defined as ellipsoid shapes covering selected links of a manipulator. ...
Keywords: Force Field, 3D-F 2 , Collision Avoidance
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 ...
Keywords: Time-optimal Control, Construction Transport System, Suspended Load
Kyungmo Jung, Kihyun Bae, Dongnam Kim, Daehie Hong
Abstract: Robot system used in building construction sites can efficiently reduce construction time and increase safety by replacing human in dangerous operations. This paper describes the development of a robotic manipulator control algorithm which provides stable and efficient gripping of a pendulum-like object. The pendulum object mimics the construction materials hanging ...
Keywords: Robot, Gripping Control, Pre-Acting Control, Shock Isolator, Steel Construction
M. T. Nguyen, N. M. Kwok, Q. P. Ha, J. Li, B. Samali
Abstract: As building structures frequently collapse and cause losses of lives and properties, due to excessive vibrations induced during earthquake periods, it is crucial to reduce the structural vibrations. This paper develops a Lyapunov-based controller for Magnetorheological (MR) dampers embedded in building structures to mitigate quake-induced vibrations. In this work, MR ...
Keywords: Structural Control, MR Dampers, Semi-Active Control, Lyapunov-Based Control, Seismic Response
Ahmad Hemami, Ferri Hassani
Abstract: In this work the process of penetration of a bucket into bulk media (for loading or excavation) is simulated based on the forces that are involved in the process. The main objective is to simulate the resistance force of medium to cutting by a tool (bucket/blade) during a loading ...
Keywords: Simulation, Resistance Force, Bulk Media
Hyongju Park, Jin-Ok Shin, Sanghak Lee, Daehie Hong
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 ...
Keywords: Obstacle Avoidance, Joint Constraint, Jacobian Pseudo-Inverse, Path Planning
Dongnam Kim, Kyeongwon Oh, Daehie Hong, Jong-Hyup Park, Suk-Hie Hong
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 ...
Keywords: Haptic Device, Excavator, Inverse Kinematics, Dismantling Process
Shigeru Sarata, Noriho Koyachi, Hiroyasu Kuniyoshi, Takashi Tsubouchi, Kazuhiro Sugawara
Abstract: The authors have been conducting development of an autonomous loading system by wheel loader. As a part of the development, a detection method of location of the dump truck will be described in this paper. In the process of loading to the truck in the operation, the loader approaches to ...
Keywords: Wheel Loader, Autonomous System, Loading Operation, Laser Range Finder
Shital S. Chiddarwar, N. Ramesh Babu
Abstract: In this paper, a coordination strategy for determining collision free path of end effectors of two manipulators involved in coordinated manipulation is proposed. This strategy consists of collision checking and path planning modules. Collision checking is done by modeling the links and environment of manipulator using sphere swept volume ...
Keywords: Coordination Strategy, Multiple Manipulators, Collision Checking, Incremental Search
Cheng Zhang, Amin Hammad
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 ...
Keywords: Collaborative Agents, Crane Operation, Simulation
Jayakrishnan T, James D English, Neil Tardella
Abstract: From design to implementation, bi-handed humanoid manipulators are more complex than common industrial robots. Humanoid manipulators have the properties of redundancy and bifurcation, which enable placement of multiple hands or tools at desired positions and orientations within the robots workspace in an unlimited number of ways. To address and ...
Keywords: Branching Robot, Kinematics, Control, Simulation
Stan Sergiu-Dan, Vistrian Maties, Radu Balan
Abstract: Parallel robots have been used in a large number of applications ranging from astronomy to flight simulators and are becoming increasingly popular in the field of construction industry. This paper is aimed at presenting a study on the optimization of the BIGLIDE and BIPOD parallel robots, which comprises two-degree-of-freedom (DOF) ...
Keywords: Optimal Design, Parallel Robots, Genetic Algorithms
B. B. Biswal, B. B. Choudhury
Abstract: Multiple cooperating robots hold the promise of improved performance and increased fault tolerance for large-scale problems. A robot team can accomplish a given task more quickly than a single agent by executing them concurrently. A team can also make effective use of specialists designed for a single purpose rather than ...
Keywords: Multi-Robot, Task Allocation, Strategies, Algorithms
Mohammad Reza Gharib, Amir Ali Amiri Moghadam, Majid Moavenian
Abstract: In this paper, a practical method to design a robust controller for a two-arm manipulator using Quantitative Feedback Theory (QFT) is proposed. As the two arm manipulators have, multivariable nonlinear transfer function, implementation of QFT technique requires first to convert its nonlinear plant into family of linear and uncertain plant ...
Keywords: Two Arm Manipulators, QFT, Loop Shaping, Dynamic Equations
Daniel Castro-Lacouture, L. Sebastian Bryson, Christopher Maynard, Robert L. Williams II, Paul Bosscher
Abstract: To improve productivity in conventional concrete construction, autonomous robots that perform specific tasks are being developed. Single-task robots are capable of enhancing specific functions, though their impact on the overall productivity remains unclear. A robot that incorporates each task-specific piece of machinery used in the concrete paving process into one ...
Keywords: Pavement, Robotics, Computer-Based Simulation, Productivity
Jia-Ruey Chang, Yuan-Hsu Tseng, Shih-Chung Kang, Chih-Hwang Tseng, Po-Huei Wu
Abstract: Traditionally pavement inspections are conducted using manually operated instruments, and hence are very labor-intensive. In this study, the authors propose the idea of using an autonomous robot to perform the pavement inspections, including for evenness and distress. Because inspection instruments are assumed to be mounted on the robots platform, this ...
Keywords: Autonomous Robot, Pavement Inspection, Pavement Evenness, Pavement Distress, Path Planning
M. De Grassi, B. Naticchia, A. Giretti, A. Carbonari
Abstract: Automation of building processes is the right mean to improve the average productivity of the construction industry, moreover in case of big and very complex projects. In addition the manufacturing of uniform high quality products can be pursued. This paper is concerned on an automatic system for interior wall painting, ...
Keywords: Multicolor Painting Robot, Construction Robot, Miniature Laboratory, Scaled-Down Laboratory
Frans van Gassel, Pascal Schrijver
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 ...
Keywords: Curtain Wall System, Wall Panels, Robot Technology, Construction Site Safety
Seungyeol Lee, Myeongsu Gil, Kyeyoung Lee, Sangheon Lee, Changsoo Han
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 ...
Keywords: Ceiling Glass, Installation Robot, Hardware Design
Kai-Yuan Gu, Shih-Chung Kang, Ping-Hung Lin, Jia-Ruey Chang, Mao-Nan Chen
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 ...
Keywords: Robot, Construction Automation, Autonomous Robot
Seungyeol Lee, Seokjong Yu, Sangho Lee, Changsoo Han
Abstract: Recently, there has been a lot of interest concerning remote-control construction robot manipulation in hazardous operation environments including construction sites. However, there are problems involving the method of remote-control in unstructured work environments such as construction sites. In this study, an improved MFR system is described, which helps a human ...
Keywords: Intuitive, OCU (Operator Control Unit), Construction Site
Adrian Bruja, Marian Dima, Catalin Frâncu
Abstract: In this paper is presented a mobile robot for the buildings construction, which, endowed with gripping and adequate tools, can carry out operations of handling, masonry or finishing in the construction industries. The robot has in its componence the following mechanisms:
* mechanism of orientation with 2 DOF's (2 R);
* mechanism ...
Keywords: Mobile Robots, Civil Engineering Flexible Cell
Nagi Reddy Sattigari, Ashwin Mahalingam, George Thomas
Abstract: Aluminium Formwork System is a comparatively new technology in India. Generally, aluminium formwork consists of standard sized panels and custom sized panels. The total area of custom shaped formwork elements can be reduced by optimizing the allocation of standard-sized formwork elements. This can in turn lead to large savings in ...
Keywords: Scheme Preparation, Aluminium Formwork, Bill of Quantities, Optimization
Satyanarayana Reddy D, Koshy Varghese, Srinivasan N
Abstract: Planning multiple heavy lifts on heavy industrial projects has a major impact on construction sequencing, scheduling, budgeting and safety. Hence it has to be planned carefully to reduce the risk and to reduce the cost and duration of the projects. Traditional planning techniques are quite unproductive as they use iterative ...
Keywords: Multiple Heavy Lift Planning, 3D Simulation, Cranes, 4D CAD
Manish Goyal, K N Jha
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 ...
Keywords: 4D Model, Project Planning, Progress Tracking, AutoCAD, MS Project
Ger Maas, Wim Nijman, Wilfred van Woudenberg
Abstract: The development of Virtual Design and Construction solutions needs a target- and vision-oriented approach at three levels: international, national and company. This paper provides an overview of both international and typically Dutch initiatives and how they influence developments at company level. As might be expected, it is challenging to match ...
Keywords: Implementation, Virtual Design, Barriers, Opportunities, Business Drivers
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 ...
Keywords: Building Erection, Assist Method, Activity Checking Method, Information Technology
S. Martinez, S. Montoiro, J. Nuñez, C. Balaguer, J. M. Navarro, C. Bosch, C. Barcena
Abstract: The objective of this paper is to show how the end user can be involved into the whole building process, specifically in social housing. Therefore, the end users preferences are taken into account in order to increase their satisfaction on the product. The first step consists on obtaining the user ...
Keywords: User Oriented, Social Housing, Building Templates
Changbum Ahn, Moonseo Park, Hyun-Soo Lee, Seungjun Roh
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 ...
Keywords: Knowledge Management, Project-Based, Blogs, Information Pulling
Hung-Ming Chen, Hung-Chun Tien
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 ComputerAided Design to allow real-time collaboration between users over the web. All these systems are ...
Keywords: Computer-Aided Design, Internet, Synchronous Collaboration, Distributed Processing, Peer-to-Peer
Ranjeet Joshi, Ramancharla Pradeep Kumar, Maluram Omprakash Sharma
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 ...
Keywords: Ruby on Rails, Google Map, Ajax
P. Soni, Ram Kumar Rathore, Shivashankar B. Nair
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 ...
Keywords: Networked Robots, Information Sharing, Faith, Social System
Atish Kumar Patra, Soumitry Jagdev Ray
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 ...
Keywords: Mobile, AT Commands, Serial Port
Samrat L. Sabat, Layak Ali
Abstract: This paper introduces a novel and efficient optimization method, the Combined Effect Comprehensive Learning Particle Swarm Optimizer (CECLPSO) to handle problems of premature and slow convergence with inferior solution prevailing in PSO and its variants. These weaknesses are resolved by introducing the combined effect of two consecutive global best particles ...
Keywords: Particle swarm optimization, Learning strategy, CLPSO
V. T. Ngo, N. M. Kwok, Q. P. Ha
Abstract: In this paper, a Discrete Particle Swarm Optimization (DPSO) technique is applied as an optimal motion planning strategy for the initialization of mobile robots to establish some geometrical patterns or formations. Firstly, an optimal assignment of location and orientation for each robot in the formation is performed. For ...
Keywords: Motion Planning, Robotic Formation Initialization, Position Assignment, Discrete Particle Swarm Optimization
N. M. Kwok, Q. P. Ha, B. Samali
Abstract: In order to ensure the survival of building structures during earthquake periods, induced vibrations have to be mitigated. In this regard, semi-active control of smart structures using magneto-rheological dampers is becoming an emerging technology. Improvements on vibration reduction are foreshadowed when the dampers are installed at critical locations on the ...
Keywords: Building Control, Damper Placement, Genetic Algorithm, Multi-Objective Optimization
R. Muthu Selvi, R. Rajaram
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 ...
Keywords: Anticipatory Scheduling, Genetic Algorithms, Crossover Operator
Sivakumar Palaniappan, Anil Sawhney, Marco A. Janssen, Kenneth D. Walsh
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 ...
Keywords: Construction Safety, Agent Based Modeling and Simulation, Construction Accidents Causation
Rajeev Ranjan Kumar, Arbind K. Singh
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) ...
Keywords: Site Layout Planning (SLP), Irregular Temporary Facility, Ant Colony Optimization (ACO)
Min-Yuan Cheng, Yu-Wei Wu
Abstract: Taiwans location in a zone of strong seismic activity means that earthquakes regularly threaten human life and transportation facilities. The importance of bridges in Taiwans transportation grid makes the destruction or damage of such during earthquakes impact significantly on peoples livelihood. However, within the grid, the importances of individual bridges ...
Keywords: Bridge, Earthquake, Repair, Rehabilitation, Economic Evaluation
Colin Nithin Nonis, Koshy Varghese, K S Suresh
Abstract: Pipelines are the most efficient, cost effective and environmentally friendly means of fluid transport . 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. ...
Keywords: Analytical Hierarchy Process, Geographic Information Systems, Least Cost Path, Pipeline Routing, Weighting systems
Dilip Kumar P V, Sriram Kiran B, Ramancharla Pradeep Kumar
Abstract: Urbanization is rapidly increasing all over the world. Past 2 decades in India, many cities have attracted large population. Reasons being the belief of better education, health care, job/business prospects, etc. For meeting the demands of population density, many high-rise structures and large public gathering places are emerging in cities. ...
Keywords: Building Evacuation, Public Gathering Places, Disaster, Simulation and Optimum Time
Po-Han Chen, Seyed Mohsen Shahandashti
Abstract: This paper presents a modified two-stage solution finding procedure and some modified simulated annealing algorithms to optimize linear scheduling projects with multiple resource constraints and their effectiveness is verified with a proposed problem. Simulated annealing and improved simulated annealing are compared in the same condition. The Reasons of obtaining improvement ...
Keywords: Modified Simulated Annealing, Modified Two-Stage Solution Finding Procedure, Linear Scheduling, Multiple Resource Constraints
Wei Lo, Yih-Tzoo Chen
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 ...
Keywords: S-Curve, Optimization, Resource Allocation, Genetic Algorithms
A. Cindrela Devi, K. Ananthanarayanan
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 ...
Keywords: Resource Scheduling, Optimization, Genetic Algorithm, Repetitive Project
Po-Han Chen, Seyed Mohsen Shahandashti
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 ...
Keywords: Linear Scheduling, Multi Projects, Multiple Resource Constraints, Simulated Annealing
Min-Yuan Cheng, Ming-Hsiu Tsai
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 ...
Keywords: Fast-Track Construction, Design-Build, Overlap, Project Scheduling, Axiomatic Design (AD)
J. Uma Maheswari, Koshy Varghese
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 ...
Keywords: DSM, Simulation, Basic Sequence, Execution Sequence, Blocks
Wei-Chih Wang, Jang-Jeng Liu
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 ...
Keywords: Uncertain Design Iteration, Simulation, Design Schedule, and Design Process
Hana Nam, Seung Heon Han, Hyoungkwan Kim
Abstract: Construction Cost Index (CCI) is widely used to analyze the construction cost variation in time. It can convert the present construction cost to the future or to the past. The current practice of the future cost estimation is simply an extrapolation of the past CCI, which often leads to the ...
Keywords: Construction Cost Index, Forecasting, Time Series Analysis, Wavelet Transform, Neural Network
Wondae Kim, Hwan-Kook Hwang, Myung Jin Chae
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 ...
Keywords: Sewer Inspection, Digital Image Processing
N. M. Nandhitha, N. Manoharan, B. Sheela Rani, B. Venkataraman, P. Kalyana Sundaram, Baldev Raj
Abstract: The quality of welded steel structures play an important role in determining the reliability of a building. Weld quality is affected by Incomplete Penetration, which is a most commonly occurring defect in welds. An automated adaptive welding system if developed can correct the deviation in the welding current on-line so ...
Keywords: Thermographs, Incomplete Penetration, Region Growing, Color Segmentation
Edmundas Kazimieras Zavadskas, Arturas Kaklauskas
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 ...
Keywords: Intelligent, Voice Stress Analysis and IRIS Recognition Technologies, Construction, Development and Integration
S Noushath, Ashok Rao, G. Hemantha Kumar
Abstract: Contemporary society is highly networked and thus biometrics based surveillance has paramount importance for various security based reasons. The automatic, remote and robot vision based system are being deployed in a large way [11, 12]. The success of these schemes is highly dependent on robust algorithms for both face and ...
Keywords: Face Recognition, Object Recognition, Singular Value Decomposition, Principal Component Analysis (PCA), Fisher Linear Discriminant, Analysis (FLD), Noise Analysis
Tarun Bhambra, S. V. Barai
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 ...
Keywords: Construction Planning and Management, Information Technology, Site Management
Singh Laishram, Satyanarayana N. Kalidindi
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 ...
Keywords: Public Private Partnerships, Project Finance, Debt Financing, and Information Fusion
Wen-der Yu, Jyh-bin Yang, Judy C. R. Tseng, Cheng-tien Yu
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 KMSs are mostly developed based on ...
Keywords: Knowledge Management, Problem-Solving, Knowledge Map, Lessons-Learned, Proactive
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 ...
Keywords: IS Planning, Cognitive Dimensions, Requirements Engineering, Human-Centered Systems
Changyoon Kim, Hyoungkwan Kim, Seung H. Han, Moon Kyum Kim, Changwan Kim
Abstract: Technology fusion is a new way of improving efficiency and effectiveness of construction technology research and development. Technology fusion indicates an interdisciplinary approach of combining different technology areas. To succeed in developing technology fusion-based construction research plans, two major approaches are adopted in this study: technology push investigation and market ...
Keywords: Construction Research, Technology Fusion, Technology Program Planning
Sae-Huyn Ji, Hyun-Soo Lee, Moonseo Park
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 ...
Keywords: Delivery System, Design Build, Design Bid Build, Performance Comparison
Namho Kim, Moonseo Park, Hyun-Soo Lee, Seungjun Roh
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 ...
Keywords: Performance Management, Balanced Scorecard, Data Warehouse, OLAP, Monitoring, Search System
Thomas Bock, Ron Unser
Abstract: Today high-tech fibres such as glass or carbon fibre are used for a wide range of applications, e.g. aviation, navigation, and even astronautics. Innovative ultra-light flexible membranes and stiff shells are utilized wherever the combination of lightweight and high rigidity is needed.
A even newer area will be the construction sector, ...
Keywords: High-Tech Fibres, Composite Materials, FEM, CAD/CAM, Robotics
Jari Rintamäki, Erno Keskinen, Tarmo Tamm, Tönu Mauring
Abstract: A European research activity under title Innovative production of high quality indoor earth plaster by adding natural fibre is realizing new industrial processes for manufacturing traditional building materials. Earth plaster reinforced by natural fibres is a healthy alternative to the use of cement, lime or gypsum based plasters still producing ...
Keywords: Plaster Composites, Fibre Processing, Traditional Building Materials
Kai Jokinen, Erno Keskinen, Roland Meingast, Risto Juvonen
Abstract: Earth plasters represent traditional building materials, which were earlier used to cover walls of buildings. These materials were replaced about one century ago by lime-cement-sand mixtures. Earth-plasters have introduced again and their excellent properties to regulate indoor humidity have been scientifically explained. The accumulation property of moisture also averages the ...
Keywords: Virtual Plant Design, Earth Plaster, Traditional Building Materials
Arne Zucker, Thomas Bock
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 ...
Keywords: No keywords
M. Muthukkaruppan, K. Manoj
Abstract: This paper discusses the case study and, comparison of productivity of a component using a real time multi stationed AUTOMATED ROTARY TRANSFER LINE used for Drilling, tapping and inspecting a standard block of size 50 X 50 X 75 mm with drill size diameter 5 x 20 mm long and ...
Keywords: Automation, Productivity, Electro-Pneumatics, Micro-Controller, Electromagnetic Relays, Reduction Gears
Samuel Y. L. Yin, H. Ping Tserng, W. Jue Hong
Abstract: ABSTRACT Under the continuous compression of life cycles for products from the high-tech industry, all investors expect to recoup an enormous amount of investment within the shortest possible timeframe and raise production rapidly, so they can acquire more market opportunities and improve market share. In view of this, investors desire ...
Keywords: High-Tech, Precast, Waffle slab