943 results found for model estimation

2017 Proceedings of the 34rd ISARC, Taipei, Taiwan 2017

Dimensional Variability Analysis of Construction Assemblies Using Kinematics Chains and Building Information Models

Mohammad Nahangi, Christopher Rausch, Carl Haas and Jeffrey West
Pages 45-50

Design optimization frameworks used in manufacturing can be adopted into construction to solve complex and relatively unsolved challenges, as recent construction methods progressively incorporate more manufacturing aspects. For example, the specification and dimensional control for compliance checking of construction components can be solved using tools existing in manufacturing. Even building information models (BIM) assist with clash detection for identifying potential ...

Keywords: Local feature descriptors, hashing, hash table, RANSAC, 3D object recognition, clutter, laser scanning

Developing a BIM-Based Integrated Model for CAD to CAM Production Automation

Xiaoxi Li, Ahmed Qureshi and Mohamed Al-Hussein
Pages 51-58

Modular construction has gained momentum in North America as an emerging construction paradigm in recent years. Modular buildings are assembled from components that are prefabricated in manufacturing plants and transported to the construction site for assembly. The current manual-based approach to modular construction, which typically applies the traditional stick-building-under-a-roof method, is time-consuming and labour-intensive. However, the application of automated prefabrication ...

Keywords: BIM, Perfabricated wall production, Automation

Towards Cloud Informed Robotics

Sven Stumm, Peter Neu and Sigrid Brell-Cokcan
Pages 59-64

The current construction industry slowly adapts towards the new possibilities created through digitalization. However there still a major gap in the information flow between planning phases and the start of construction. With modern robotics we see a chance to mediate this gap. By using cloud accessible CAD software and linking it directly with a web interface, new means of cloud ...

Keywords: Cloud, Robotics, BIM, Production immanent design

Improving Indoor Location Tracking Quality for Construction and Facility Management

Matthias Neges, Mario Wolf, Markus Propach, Jochen Teizer and Michael Abramovici
Pages 88-95

Real-time location tracking systems (RTLS) for personnel and machinery in outdoor civil engineering environments quite often use commercially-available Global Navigation Satellite System (GNSS) technology. Although the GNSS is an important approach in outdoor positioning and logistics coordination, their signals are not able to penetrate buildings due to their signal strength. Despite some recent advances in research, reliable indoor navigation remains ...

Keywords: Building Information Modelling, Facility Maintenance and Management, Human-Machine Interface, Localization, Sensing and Monitoring, Tracking, Visualization, Web-based Systems

FEA in Road Engineering Applications?

Filip Fedorik, Tomi Makkonen and Rauno Heikkilä
Pages 128-133

The current urbanization, industrialization and planning of new city-districts require efficient design to manage the energy, ecology and economical demands set for living environment. The efficiency of Building Information Model (BIM) design in construction sites has been proven through many projects. The full overview and control of design, construction and life-cycle of a structure brings sustainability to buildings and provides ...

Keywords: BIM, Road engineering, FEA, Interoperability, Efficiency

Integration of Structural Health Control in BIM for Current and Future Residential Buildings

Filip Fedorik, Rauno Heikkilä, Tomi Makkonen and Antti Haapala
Pages 134-139

Currently the structural engineering and construction technologies go through substantial paradigm shift and development between energy conservation, health and living cost issues. Increasing energy consumption for e.g. heating and cooling and the constant effort to energy preservation in all forms promotes the manufacture of sustainable low-energy or near-zero energy houses, often with some independent energy production capability included. As ...

Keywords: BIM, Building physics, Hygro-thermal analysis, Mould, Interoperability

IFC-Based Cut & Bent Rebar Supply Chain Integration

Alex Maciel and Fabiano Correa
Pages 140-147

Despite the growing interest towards Building Information Modelling (BIM) adoption by the Brazilian construction industry, the use of this process in a way that permeates all stakeholders of the entire construction life cycle stages are still incipient. In general, the use of BIM is typically limited to the design phases and some planning and construction activities, but it is not ...

Keywords: IFC, Reinforcing bars, Supply Chain

AR(Augmented Reality) based 3D Workspace Modeling for Quality Assessment Using As-Built On-Site Condition in Remodeling Construction Project

Song Yi Lee, Soon-Wook Kwon and Tae Kyu Ko
Pages 181-188

In case of re-modeling construction project, it has various difficult situations to carrying out the projects comparing with general construction project. The re-modeling project needs to do several make decision makings which is to define the scope of utilization, extra works and O&M(operation & maintenance). Especially, the construction delays and cost-increase are caused by absence of reviews on existing building, ...

Keywords: Augmented Reality, As-built Model, Remodeling, Human Assisted Matching

A Study on the Effect of the Use of Augmented Reality on Students' Quantity Take-off Performance

Sung Joon Suk, George Ford, Youngcheol Kang and Yong Han Ahn
Pages 189-192

This study examined whether the augmented reality (AR) technology affects the quantity take-off performance of construction management (CM) undergraduate students. The sample for the study consisted of 22 sophomore CM students taking an estimating course at Western Carolina University in the U.S.A. To determine whether AR images help students' quantity take-off performance, the students were asked to take off the ...

Keywords: Augmented Reality, Quantity take-off, Estimating, Students' performance

IFC of BIM Automatic Retrieving and Linking for Building Envelope Energy Efficiency Measuring - Ministry of the Interior Green Building Electronic Evaluation System in Taiwan

Kuochung Wen and Wunbin Siao
Pages 206-213

Taiwan Green Building Evaluation System was established in 1999 by the Government, that main axis was ecological, energy saving, waste reduction and health (EEWH), to enhance the effectiveness of promoting green building design in Taiwan. The Green Building Measure System (GBM) was completed by the the Ministry of the Interior, Taiwan, If the GBM and BIM can be linking, it ...

Keywords: IFC, BIM, EEWH, GBM, Green building

Modular vs Conventional Construction: A Multi-Criteria Framework Approach

Ahmed Hammad and Ali Akbarnezhad
Pages 214-220

The use of modular construction methods for projects offers significant time and environmental improvement relative to conventional construction methods. Currently, there is a lack of appropriate assessment approaches to capture the differences between modular and conventional construction. This paper proposes a framework to aid decision makers in choosing between the latter construction methods through the integration of building information models ...

Keywords: Modular Construction, Construction Methods, Prefabrication, Sustainable Construction, BIM

Constructing a MEP BIM Model for Different Maintenance Scenarios - A Case Study of Air Conditioning

Po Cheng Wu and Chung Wei Feng
Pages 229-238

Facility managers usually need to make decisions under different types of MEP system breakdowns. They usually fight to find the information required to restore the system. However, the BIM model developed usually lacks of information to satisfy the what-if analysis under various maintenance scenarios. Although several researchers took the linked-information approach, such as using COBIE (Construction-Operations Building Information Exchange), to ...

Keywords: Building Information Modeling (BIM), Dynamo, Facility Management (FM), Ontology, Air Condition System

Automation of Robotic Concrete Printing Using Feedback Control System

Biranchi Panda, Jian Hui Lim, Nisar Ahamed Noor Mohamed, Suvash Chandra Paul, Yi Wei Daniel Tay and Ming Jen Tan
Pages 276-280

In recent days, digital fabrication is termed as “third industrial revolution” and its interaction with extrusion based cementitious material has been well known as concrete printing. Concrete printing is a promising technology where robotic/gantry systems, controlled by digital model deposits concrete layer by layer following the G-code, generated from NC program. However, the robotic system does not consider the material ...

Keywords: Digital construction, Feedback control, Concrete printing, Autonomous robot

Comparison of Single Classifier Models for Predicting Long-term Business Failure of Construction Companies Using Finance-based Definition of the Failure

Hyunchul Choi, Hyojoo Son, Changwan Kim, Hyeonwoo Seong, Hyukman Cho and Sungwook Lee
Pages 282-287

This study compares the performance of six classifier models (ANN, KNN, C4.5, SVM, LR, and NB) for predicting the business failure of construction companies after three years from 2009 to 2012. Although previous studies have explored numerous business failure prediction models for construction companies, these models have focused on short-term failure, defined as failure occurring within one year, and have ...

Keywords: Data Mining, Machine Learning, Project Management, Business failure, Prediction model

Mass Estimation of On-road Construction Equipment Based on Modelling Operational Parameters

Khalegh Barati and Xuesong Shen
Pages 294-301

Earthmoving operations are considered as one of the main activities in construction industry. These operations involve processing and moving soils and rocks to destination using earthmoving equipment like trucks and haulers. The measurement of the mass of materials carried by equipment in each trip has always been one of the main challenges in this field. Currently, different metric and volumetric ...

Keywords: Construction industry, mass, operational parameters, engine load, on-road equipment, data collection

Decision Support System for Modular Construction Scheduling

Ahmed Hammad, Ali Akbarnezhad, David Rey and Hanna Grzybowska
Pages 302-307

The use of modular construction as opposed to traditional on-site construction presents an opportunity to improve a project’s economic and sustainable performance. At the same time, substantial savings in the overall project’s duration can be achieved. The potential for reducing the overall makespan period involved in manufacturing and assembling the modularised components, along with the constant need for aligning the ...

Keywords: Resource-constrained project scheduling, Parallel machine scheduling problem, Modular construction, Optimisation, Mixed Integer Programming

Multilevel Computational Model for Cost and Carbon Optimisation of Reinforced Concrete Floor Systems

Stathis Eleftheriadis, Philippe Duffour, Paul Greening, Jess James and Dejan Mumovic
Pages 308-315

The cost and carbon efficiency of building structures could be enhanced by the current developments in design automation and optimisation techniques. The study focuses on a common structural system seen in the majority of mid- and high-rise buildings in the UK: flat slabs with reinforced concrete columns. A multilevel optimisation approach is established combining BIM data and FEM with a ...

Keywords: Optimisation, Reinforced Concrete, Cost, Carbon, BIM, FEM

Performance Assessment of Residential Buildings Management Utilizing Network Data Envelopment Analysis

Wei Tong Chen, Pei-San Tan, Nida Fauzia and Chao Wei Wang
Pages 339-344

Apartment buildings and residential buildings in Taiwan have become more and more community oriented. Precise control of residential buildings operational performance is increasingly important. Using network data envelopment analysis (Network DEA) and existing data, this study develops a three-phase based residential building operational performance assessment model and use it to assess the operational efficiency of 26 cases to obtain the ...

Keywords: Residential buildings, Performance assessment, Case management, Network data envelopment analysis

Condition-Based Building Maintenance Strategy Selection Using Constraint Programming

Shu-Shun Liu and Gilang Ramadhan
Pages 345-351

Naturally, buildings will deteriorate during its life cycle. On the other hand, sustainability of building condition is the main objective in providing service for users. Therefore, building maintenance management should be a priority to achieve that objective. As a special case, in Indonesia, government agencies face a quite complicated problem regarding maintaining public buildings. There are so many public buildings ...

Keywords: Building Maintenance, Condition-Based Maintenance, Maintenance Strategy, Optimization, Constraint Programming

A Study of BIM Based Building Facilities Online Repair System

Nai-Hsin Pan, K.Y. Chen
Pages 352-357

When facilities was exceptionally occurs, the traditional operation method is either to repair or replace. Before operation procedures starts, it needs to be taken through a series of actions of notification with paperwork. Thus, the management on site tends to make the operation procedure with inefficiency and inconvenience. The recent rise of BIM. Due to BIM's functionality and data-rich of ...

Keywords: BIM, QR Code, Facility management

A Framework for Using Advanced Visualization Tools for Residential Property Management

Mehrafarin Takin, Jinghan Peng, Samad Sepasgozar and Hamidreza Ebrahimi
Pages 359-365

Traditional property management models are not able to meet new customers’ requirements in terms of detailed information of the property quality and conditions. This paper aims to develop a framework for application of advanced visualization technology in residential property marketing to offer a detailed 3D information model to customers through the real estate websites. The paper will present the result ...

Keywords: Advanced Visualization Technologies, 3D Models, 3D Scanners, Real Estate On-line platform, Residential properties

HAZUS-Based Drill Scripts Generation Using Unity and Ontology with Semantic Rules

C.P. Chu, C.Y. Liu, C.C. Hsieh, C.H. Chang, and C.C. Chou
Pages 366-371

As there is an increasing number of disasters hitting countries around the world, numerous mitigation strategies have been proposed and implemented to alleviate such impacts. Indeed, every year many public and private organizations work together to prepare various disaster exercises for training their first responders. Design of an appropriate drill script, hence, plays an important role of enhancing the capability ...

Keywords: MAZUS-MH, serious game, ontology, Semantic Web Rule Language (SWRL)

Immersive Virtual Environment (IVE) as a Potential Tool for Interior Colour Study in Office Environments

Shaojie Zhang, Jeonghwan Kim, Shan-Ying Shih, Choongwan Koo and Seung Hyun Cha
Pages 396-200

Interior design elements, particularly colours, have shown significant influence on employers’ performance in office environments. The task performance was often measured against different coloured offices in physical built environments. An identified challenge for these studies is to alter colour settings for experiments. Immersive virtual environment (IVE), as an advanced technology, may potentially address to this challenge. Although few studies applied ...

Keywords: Immersive virtual environment (IVE), physical built environment, task performance, proofreading tasks

Flexible Earthwork BIM Module Framework for Road Project

Hassnain Raza, Waqas Tanoli, Seungsoo Lee and Jongwon Seo
Pages 410-415

Development and expansion in the cities have increased the demand for road construction projects in different regions of the world. The construction projects in the modern era require the utilization of latest technology. BIM and its collaboration with other technologies like GPS, UAV, AR/VR, and telematics have successfully proven their worth in provision of a solution to various construction industry ...

Keywords: Earthwork, 3D BIM, Road, Module, Partitioning Technique

Application of Civil Information Modeling for Constructability Review for Highway Projects

Yick Hong Liau and Yu-Cheng Lin
Pages 416-422

Usually, it is necessary for general contractor to handle constructability review of infrastructure and civil projects during the construction phase. Generally, constructability review usually be analyzed and applied at job onsite using 2D CAD drawings. The constructability review integrated with 2D CAD drawings usually cause timeconsuming problems and problem misunderstandings. Civil information modeling (CIM) is one of the latest concepts ...

Keywords: Civil information modeling, CIM, Highway, Constructability, Construction phase, General Contractor

Visual Language-based approach for the Definition of Building Permit Related Rules

Hayan Kim, Jin-Kook Lee, Jaeyoung Shin and Jinsung Kim
Pages 423-429

This paper describes the visual language-based approach for the definition of building permit related rules. The conventional design phase of architecture has a high possibility of occurring error and time consuming because of the necessary handling of human resources. The introduction of BIM (Building Information Modeling) enables those inconvenient and repetitive process to be compact and automatize. Especially in the ...

Keywords: BIM (Building Information Modeling), Building permit related rules, Rule-making, Visual language, Rule definition

Automating the Generation of Indoor Space Topology for 3D Route Planning Using BIM and 3D-GIS Techniques

Will Y. Lin, Pao H. Lin and H. Ping Tserng
Pages 437-444

3D Indoor space topology, mainly referred as floor layouts and navigation routes, is the foundation of indoor Location-based Services (LBS), such as navigation in large shopping malls or interchange in large transport stations. Manually generating this topology is highly time-consuming, less cost effective, and prone to errors. This research adopts 3-D GIS technology and proposes a novel workflow to automatically ...

Keywords: 3-D GIS, Indoor Space Topology, 3D Navigation graph, Building Information Modeling

A Study on the Modeling of Independently Driven Quadruped Crawler System for Posture Control of Special Purpose Machine for Disaster Response

Sang Keun Lee, Ji Woo Ha, Sang Ho Kim, Yong Seok Lee, Dong Ik Sun and Chang Soo Han
Pages 472-477

The crawler-leg mobile system is a sub-mechanism of special purpose machines for the early stage rescue and reconstruction in disaster. This system plays a role in controlling the posture to prevent rollover when the special purpose machine is running on rough terrain. In this paper, a mechanism is introduced for posture control of a crawler-leg mobile system and coordinates for ...

Keywords: Independently Driven Quadruped Crawler, Posture Control, Special Purpose Machine, System Modeling, Crawler-Leg Mobile System

Evaluating the Performance of Convolutional Neural Network for Classifying Equipment on Construction Sites

Mohammad Soltani, Seyedeh-Forough Karandish, Walid Ahmed, Zhenhua Zhu and Amin Hammad
Pages 509-516

Estimating the productivity of construction operations is one of the most challenging tasks for project managers. Therefore, the construction industry always looks toward new advancements for automating this process. New automated methods for productivity estimation aim to detect the types, locations, and activities of construction equipment based on sensory data. Computer Vision (CV) is one of the most promising automated ...

Keywords: Computer Vision, Equipment detection, Convolutional Neural Networks, Sensory data

A Risk-Based Critical Path Scheduling Method (I) : Model and Prototype Application System

Hsien-Kuan Chang, Wen-Der Yu and Shao-Tsai Cheng
Pages 518-526

The traditional cost-based Earned Value Management (EVM) method, and the related Earned Schedule Management (ESM) and Earned Duration Management (EDM), for construction project schedule control has been founded on the basis of the Planned Value (PV). However, the relevant risk factors are usually not taken into account while the scheduler is estimating the duration of an activity. As a result, ...

Keywords: Risk management, EVM, Construction Planning, Schedule Control

A Risk-Based Critical Path Scheduling Method (II) : A Visual Approach System Using BIM

Hsien-Kuan Chang, Wen-Der Yu and Shao Tsai Cheng
Pages 527-535

The traditional construction schedule planning methods are mostly based on the project activities list broken down by the experienced engineers who primarily analyze the work content of construction drawings, and the activity durations estimated by simulating the construction process according to the conditions of the construction site. However, such an approach does not only give hard time the new engineers ...

Keywords: Risk management, BIM, Construction scheduling and control

Value Engineering Decision Making Model Using SMART

Ahmed Montaser and Ali Montaser
Pages 536-543

Value engineering (VE) has a great potential to enhance project delivery. It has become a standard practice for many government agencies, private engineering firms and contractors since its first adoption. Decision makers judge the alternatives performance under selected criteria and simultaneously weighing the relative importance of the criteria in order to reach a global judgment. Multi-Criteria Decision Analysis (MCDA) has ...

Keywords: Value Engineering, Simple Multi Attribute Rating technique (SMART), Criteria and Decision Making

An Analysis Using Game Theory on the Investment Incentive of PPP Projects

Shiau-Jing Ho, Sheng-Lung Lin and Hui-Ping Tserng
Pages 552-559

According to the research of Taiwan Institute of Economic Research, the domestic PPP (Public Private Partnership) projects create economic growth rate of about 0.08% per NTD 10 billion of capital. In Feb. 2015, project report by Ministry of Finance indicated that signed PPP projects over the years have injected investment for an amount of approximately NTD 30.6 billion in 2014, ...

Keywords: Public Private Partnership, Game theory, EVA, Investment incentive, Nash Equilibrium, Equilibrium solution, PPP

Building Carbon Footprint(BCF) Evaluation for Social Amenities and Education Center in Taipei

Ying Chiao Chiu and Po Han Chen
Pages 560-564

Abstract – The United Nations in 1992 through the "United Nations Framework Convention on Climate Change (UNFCCC)" on the "Anthropogenic Greenhouse Gas" emissions to make global control of the declaration, so "carbon reduction" has become the topic of concern to countries around the world. (Energy Efficiency and Carbon Reduction in New Taipei City from the Perspective of Carbon Emissions ...

Keywords: Building Carbon Footprint (BCF), Building Information Modeling (BIM) , Evaluation

Using BIM to Automate Scaffolding Planning for Risk Analysis at Construction Sites

Chung-Wei Feng and Szu-Wei Lu
Pages 610-617

Scaffolding system plays an important role at construction sites. According to the Occupational Safety and Health Administration (OSHA), 65% of the construction workers use scaffolding system frequently. Each year, there are 4500 injuries and 50 death caused by scaffold-related accidents, costing American employers $90 million on lost workdays. Thus well conducted risk analysis on the scaffolding system could have significant ...

Keywords: BIM, Scaffolding System, Risk Analysis, Ontology, Dynamo

Using BIM to Automate Information Generation for Assembling Scaffolding - A Material Management Approach

Chung Wei Feng and Tzu Fang Hsu
Pages 618-625

In a construction project, the scaffolding system is an important temporary facility to support the process of construction. Without properly assembling scaffoldings, the construction process could be delayed, and workers could be exposed to danger. However, construction workers usually rely on their past experiences to assemble scaffoldings without detailed planning. Consequently, lack of necessary components delivered to the site, assembling ...

Keywords: Automate Scaffolding System, BIM, Ontology, Dynamo, Material Management

PAD Based 3D Earthwork BIM Design Module for Machine Guidance

Waqas Tanoli, Hassnain Raza, Seungsoo Lee and Jongwon Seo
Pages 626-631

Building Information Modeling (BIM) technology developed in the recent decades and provided a new perspective which shifted the trend from simple 2D drawings to intelligent 3D modeling. Earthwork is the primary component of any construction project regardless of the scale of work. In the modern world, it has become possible to model and analyze the changes accurately in earthwork using ...

Keywords: BIM, 3D Modeling, Earthwork, Machine Guidance

BIM for the Steel Fabrication Industry Robotic Systems

Pedro Tavares, Carlos Costa, Pedro Malaca, João Silva, Luis Rocha and Germano Veiga
Pages 639-645

In this paper we present a comparison between the older DSTV file format and the newer version of the IFC standard, dedicating special attention of its impact in the robotization of welding and cutting processes in the construction industry. In the last decade, we have seen a significant increase in the request for automation in the steel fabrication industry. These ...

Keywords: BIM, IFC, Robotized Welding and Cutting, Automation, Construction Industry

An Improved Robot for Bridge Inspection

Harriet Peel, Shan Luo, Anthony Cohn and Raul Fuentes
Pages 663-670

"This paper presents a significant improvement from the previous submission from the same authors at ISARC 2016. The robot is now equipped with low-cost cameras and a 2D laser scanner which is used to monitor and survey a bridge bearing. The robot is capable of localising by combining a data from a pre-surveyed 3D model of the space with real-time ...

Keywords: Bridge inspection, monitoring, SfM, SLAM, ROS

A Cascaded Classifier Approach to Window Detection in Facade Images

Marcel Neuhausen, Alexander Martin and Markus König
Pages 690-697

A major part of recent developments in civil engineering in the urban context evolved around building and city models. Especially for a precise risk assessment of damages to existing buildings induced by ground movements, accurate models are inevitable. Beside the shape of a building, the focus is also on components compromising a building’s stiffness. Particularly, by including wall openings such ...

Keywords: Window Detection, Cascaded Classifier, Urban Environments, Building Classification, Building Reconstruction

Comparison of Handheld Devices for 3D Reconstruction in Construction

Madhumitha Senthilvel, Ranjith K Soman and Koshy Varghese
Pages 698-705

Generation and quality of as-built models influence their usage in subsequent applications such as progress monitoring,quality control, and deviation detection. The quality of any 3D reconstructed model heavily depends on the raw inputs and the post processing involved. While laser and LiDAR based scanning are widely prevalent, lower cost equipment and sensors ...

Keywords: 3D Reconstruction, as-built modelling, stereo vision, infrared depth sensors

Method of Optimal Machine Selection for Construction Processes from the Point of its Energy Consumption Minimizing with Software Support

Jozef GaŠparÍk, Lucia PauloviCovÁ, Sylvia SzalayovÁ and MariÁn GaŠparÍk
Pages 730-736

Energy saving is one of the most important environmental factor during the process of building realization. The optimal selection of machine or machine group for building processes is very important role of building planner during the process of building planning. During this process building planner have to analyse several factors influencing the final effective decision concerning this problem. There are ...

Keywords: Construction mechanized process, Energy Consumption Minimizing, Optimal Method

Application of Configuration Management for Engineering Information Management in Pipeline Projects

Doyun Lee, Seokyung Won, Choonghee Han, Moonyoung Cho and Junbok Lee
Pages 750-757

Since April 2009, Korea has been importing 1.5 million tons of LNG(Liquefied Natural Gas) annually from the Sakhalin-II project, which is operated by Gazprom, Russia's largest state-run gas company. Also, it is expected that the cost of pipeline construction will reach $55 ~ 60 trillion by 2018. In this long-distance pipeline construction project, the importance of effective management of the ...

Keywords: Configuration Management, Data Breakdown Structure, Pipeline, Engineering Information Management, Conformity, Traceability

Employing Ontology and BIM to Facilitate the Information for Subcontractor’s Payment Requests and Ledger Generation

Chung-Wei Feng, Yi-Jao Chen and Hsin-Yi Yu
Pages 783-792

General contractors usually need to handle subcontractor’s payment requests periodically according to the progress of the construction project. The documents required for payment requests are related to various types of information generated form construction work items. Consequently, construction company needs to spend a lot of efforts to verify and approve the submitted documents in order to record accounts on the ...

Keywords: BIM, Ontology, Dynamo, Payment Request,Ledger Generation

Empirical Research on BIM Application for Cost Estimation of HVAC System in Buildings

Sy-Jye Guo, Li-Wei Chiang, Jyun-Yu Chen and Un-On Chong
Pages 799-803

Building information modeling (BIM) is considered as a major trend of the construction industry in the future. In traditional way for estimating the cost of the HVAC system in buildings, a lump sum method is adopted as a rough approximation. Instead of detailed quantity calculation, the lump sum method often result in inaccurate total cost and quantities. The ...

Keywords: HVAC system, BIM, lump sum, Quantity, Cost estimation

Integrated Activity Scheduling and Site Layout Planning

Shabtai Isaac, Yi Su and Gunnar Lucko
Pages 804-810

A temporal-spatial scheduling model is used to consider the location and movement of equipment, material and temporary structures on a construction site over time, ensuring efficient yet safe processes. The model ties together activity scheduling and dynamic site layout planning, fully integrating two domains that have so far been treated separately. Their integration is facilitated by modeling temporary site objects ...

Keywords: Scheduling, Singularity Function, Site Layout, Cranes

Automatic Generation of 3D Models from UAV-Captured Image Data for Immersive VR Applications

Nei-Hao Perng, Bo-Sheng Bai, Po-Han Chen, Jen-Yu Han, Ming-Yi Jiang, Jyun-Hao Huang, Cheng-Wei Su and Po-Yuan Chen
Pages 812-815

There are some twenty-nine thousand bridges in Taiwan, managed respectively by Taiwan Railways Administration, Taiwan Area National Freeway Bureau, Directorate General of Highways, and local governments. According to the current bridge maintenance guidelines in Taiwan, bridge inspection is mainly carried out through visual inspection, supplemented with equipment inspection. Bridge inspectors would usually approach the bridge structure for visual inspection. However, ...

Keywords: UAV, VR, 3D-Model, Automatic

Adaptive Second-Order Sliding Mode Control of UAVs for Civil Applications

Van Truong Hoang, Ansu Man Singh, Manh Duong Phung and Quang Ha
Pages 816-822

Quadcopters, as unmanned aerial vehicles (UAVs), have great potential in civil applications such as surveying, building monitoring, and infrastructure condition assessment. Quadcopters however are relatively sensitive to rotational noises so that their performance may be quickly downgraded in the case of inadequate control, system uncertainties and/or disturbances. In this study, we deal with the quadrotor control problem by proposing a ...

Keywords: Quadcopter, robustness, adaptation, quasi-ontinuous second-order sliding mode control, monitoring system

Automatic Crack Detection in Built Infrastructure Using Unmanned Aerial Vehicles

Manh Duong Phung, Van Truong Hoang, Tran Hiep Dinh and Quang Ha
Pages 823-829

This paper addresses the problem of automatic inspection by means of Unmanned Aerial Vehicles (UAV) for health monitoring of infrastructure. Our approach comprises two stages, data collection using unmanned aerial vehicles and image processing with histogram analysis. For the data collection, a 3D model of the monitored structure is first created by using vision-based sensors attached on the UAV. Based ...

Keywords: Crack detection, Unmanned aerial vehicles, Health monitoring, Image stitching

Investigating the Accuracy of 3D Models Created Using SfM

Kosei Ishida
Pages 834-839

Technological innovations in photogrammetry have progressed over time, and civil engineers in Japan have employed this technology for earthworks. Photogrammetry has also been introduced to building construction work, and in particular, it is used in the surveying of buildings and the production of architectural drawings in repair work. With this motivation, the authors evaluate the accuracy of Three-dimensional (3D) model ...

Keywords: Photogrammetry, SfM, Accuracy, Height

Construction Inspection through Spatial Database

Ahmad Hasan, Ashraf Qadir, Ian Nordeng and Jeremiah Neubert
Pages 840-847

This paper presents a novel pipeline for development of an efficient set of tools for extracting information from the video of a structure, captured by an Unmanned Aircraft System (UAS) to produce as-built documentation to aid inspection of large multi-storied building during construction. Our system uses the output from a Simultaneous Localization and Mapping system and a 3D CAD model ...

Keywords: Computer Vision, Construction Inspection, Spatial Query, Metric Data Analysis

Developing a Pattern Model of Damage Types on Bridge Elements Using Big Data Analytics

Soram Lim, Sehwan Chung and Seokho Chi
Pages 849-855

Bridge plays an important role for transportation networks but its damage can threat public safety and hinder economic activity. Timely bridge management is needed not only to keep operating services but also to ensure traffic safety. Nowadays economically developed countries such as the U.S., Canada, Japan, and Korea have difficulties to maintaining over 30–year-old bridge structures, the aged structures. While ...

Keywords: Bridge Management, Infrastructure Maintenance, Damage Pattern, Big Data analytics, O&M

Prediction of Concrete Compressive Strength from Early Age Test Result Using an Advanced Metaheuristic-Based Machine Learning Technique

Doddy Prayogo, Min-Yuan Cheng, Janice Widjaja, Hansel Ongkowijoyo and Handy Prayogo
Pages 856-863

Determining accurate concrete strength is a major civil engineering problem. Test results of 28-day concrete cylinder represent the characteristic strength of the concrete that has been prepared and cast to form the concrete work. Waiting 28 days is quite time consuming, but it is important to ensure the quality control process. Machine learning techniques are increasingly used to simulate the ...

Keywords: Concrete, Compressive Strength, Early Strength, Machine Learning, Prediction

An Investigation of Google Tango® Tablet for Low Cost 3D Scanning

Mark Froehlich, Salman Azhar and Matthew Vanture
Pages 864-871

Google Tango® is an augmented reality based Android tablet that contains customized hardware, an array of sensors, and software designed to track the full 3D motion of the device while simultaneously creating a map of the environment. The embedded sensors allow the device to make over a quarter million 3D measurements every second, updating its position and orientation in real-time, ...

Keywords: Project Tango®, Simultaneous Localization and Mapping (SLAM) devices, 3D scanning, Point cloud, Augmented reality

Using SLAM-based Handheld Laser Scanning to Gain Information on Difficult-to-Access Areas for Use in Maintenance Model

Tomi Makkonen, Rauno Heikkilä, Filip Fedorik and Pekka Tölli
Pages 887-892

Laser scanning is the de-facto system to collect large amounts of geometrical information, especially indoors. Total stations are usually used for accuracy and information-rich results. However, in some cases the target area is not suitable for using a terrestrial laser scanner. For instance, too cramped or difficult-to-access space can be a limiting factor. In complex cases, standard scanning methods are ...

Keywords: Mine shaft, BIM, Laser scanning, SLAM, Maintenance model

Integration of Control Policies for Comfort Improvement in a Large Public Building

Massimo Vaccarini, Alessandro Piccinini, Letizia D'Angelo and Alessandro Carbonari
Pages 908-915

Some public buildings, which date back to the 1980-1990s, often miss to comply with comfort basic requirements. Also, their energy consumption is often above thresholds posed by regulations presently in force. Hence, low-cost technology improvements for renovation with high return on investment is a good opportunity in order to limit the required budget. To this purpose, the integration of advanced ...

Keywords: Comfort improvement, Control systems, Energy analysis, Cost-benefit analysis, BIM

A Methodology of Building Code Checking System for Building Permission based on openBIM

Jungsik Choi and Inhan Kim
Pages 945-950

Architectural information is managed throughout the life cycle of a building. Building information modeling (BIM) serves as a shared knowledge resource for information about a facility, forming a reliable basis for decisions during its life cycle from inception onward. BIM technology has been utilized increasingly in quantitative ways in the architecture, engineering, and construction disciplines. However, owing to increasing requirements ...

Keywords: Automated Code Checking System, Building Code, Building Information Modeling(BIM), Design Quality, Industry Foundation Classes(IFC)

Improving Indoor Acoustics Performance of Concert Halls Using Building Information Modeling

Yi Tan, Yi Fang, Teng Zhou, Qian Wang and Jack C.P. Cheng
Pages 959-966

Indoor acoustics is an important issue in the design of facilities such as concert halls, lecture theaters and hospitals, which require a quiet environment. To perform acoustic analysis in the current acoustic simulation tools, 3D modeling of the facility geometry in those tools is needed, which is a time consuming process. Building information modeling (BIM) is now commonly used in ...

Keywords: Architecture design, BIM, Decoration Materials, Indoor Acoustic Simulation, Speaker Position

Smoothing Process of Developing the Construction MEP BIM Model - A Case Study of the Fire-Fighting System

Chung-Wei Feng and Wei-Ting Lin
Pages 967-974

Conflict analysis is one of the most recognized benefits of employing Building Information Modeling (BIM) to the mechanical, electricity and plumbing (MEP) system, especially at the design stage. However, at the construction stage, the MEP professional still strives to install the MEP system only according to the BIM model due to insufficient information. This is because the BIM model of ...

Keywords: BIM, Dynamo, Ontology, Material Management

Changes in the BIM Service Provision of Top BIM Companies: A Five-Year Longitudinal Study

Namcheol Jung and Ghang Lee
Pages 975-981

This paper presents the results of a five-year longitudinal study conducted to analyze the changes in the building information modeling (BIM) services provided by top contractors from 2011 to 2015. Many previous studies analyzed the trend of BIM adoption through questionnaires, case studies, or interviews, all methods that are subject to respondents’ perspectives. To objectively analyze the changes in BIM ...

Keywords: Building information modeling (BIM), BIM service, BIM use, Longitudinal study

Pose and Position Estimation of Dozer Blade in 3-Dimensional by Integration of IMU with Two RTK GPSs

Dong-Ik Sun, Sang Ho Kim, Yong Seok Lee, Sang Keun Lee, and Chang Soo Han
Pages 991-996

Construction equipment such as excavator, dozer, loader with automation system help the efficiency, accuracy to improve and reduces the cost. And the phenomena about avoiding particular occupation and a shortage of manpower in construction field as the low birth rate and aging has recently come up to the fore as a serious social issue. But, those automation system embeded with ...

Keywords: Machine Guidance, Dozer, Sensor Fusion

Optimal Variable Speed Limit Control under Connected Work Zone and Connected Vehicle Environment

Shuming Du, Saiedeh Razavi and Wade Genders
Pages 997-1004

Despite the long-term benefits gained through road maintenance projects, the work zone involved can cause serious traffic congestion and greatly increase traffic delay. Variable speed limit (VSL) enforcement provides a means to reduce the travel time and alleviate the traffic congestion in work zones. This paper presents a novel proactive VSL control algorithm for freeway work zone traffic management under ...

Keywords: Variable Speed Limit, Connected Work Zone, Connected Vehicles, Total Travel Time

Modelling of Industrial Robotic Brick System

Michal Bruzl, Vyacheslav Usmanov, Rostislav Šulc and Pavel Svoboda
Pages 1013-1020

The paper will describe a design of functional model of a bricklaying industrial robot that is able to technically implement the complete process of bricklaying. The system will be created at a reduced scale and will be able to brick object. The robotic system for bricklaying will use special developed software which will convert the necessary data of mathematical model ...

Keywords: Robotic, brick, system, BIM, IFC, robot, KUKA

BIM-Based Indoor Positioning Technology Using a Monocular Camera

Yichuan Deng, Hao Hong, Hui Deng and Han Luo
Pages 1030-1036

In recent years, increasing attention has been paid to indoor positioning. This paper presents a BIM-based Indoor positioning technology using a monocular camera. This technology utilizes a monocular camera to obtain on-site image. An improved corner detection algorithm is used to identify the corners of the ground tile in the on-site image. Combining the geometric information from BIM, this paper ...

Keywords: aIndoor positioning, BIM, Image recognition, Computer Vision

Web-Based Integrated Project Controls System

Ahmed Montaser and Ali Montaser
Pages 1061-1068

The early detection of overruns in construction industry is essential for effective project management. Inefficient and wasteful project reporting systems contribute in project failure as it deprives project management team from taking immediate corrective actions. Reporting and dashboard tools allow multiple data source extraction and processing, which facilitate producing integrated web-based visualized report in near-real-time to be available for project ...

Keywords: Web-based reporting, Integrated reporting, Cost reporting, Project control and ORACLE Business Intelligence

2016 Proceedings of the 33rd ISARC, Auburn, AL, USA 2016

Analytical Hierarchy Process Decision Support System (AHP-DSS) for Trenchless Technology

Mohamed Salah, Soliman Abu Samra, Ossama Hosny
Pages 1-9

Among the increasing complexities and surface development, underground utilities installation, renewal and repair remain one of the most challenging projects worldwide. In addition, the crucial need for a minimal surface disruption is what even makes it more thought provoking for contractors/specialists to maintain. That is why, trenchless technology has been an economical choice for many contractors/specialists, especially in urban areas, ...

Keywords: AHP, Decision support system, Modeling, Trenchless technology

Time-Cost Tradeoff for Multiple Paving Projects Using Genetic Algorithms

Mohamed Salah, Tarek Zaki and Ossama Hosny
Pages 10-18

Road construction companies work on delivering multiple projects at the same time. Careful planning and allocation of each project's resources need to be determined and evaluated in order to minimize their costs and maximize their profits. In this paper, a model was developed with the objective of trading off between time and cost for Multiple Paving Projects using Genetic algorithms ...

Keywords: Paving Projects; Multiple Project; Resource Allocation; Optimization; Genetic Algorithms; Construction Planning.

Site Plan Development: Tower Crane Placement Using BIM Based on Data Obtained from IFC File

Tomas Funtík and Jozef Gašparík
Pages 36-41

One of the fundamental issues of site plan development is the location of a tower crane which needs to be designed to meet specific criteria and specific needs of structures. With today's traditional techniques it is quite difficult to consider optimal position and to select adequate technical parameters of a tower crane. This task is rather time consuming and complicated. ...

Keywords: BIM, Tower Crane, Building Technology

Field Construction Management Application through Mobile BIM and Location Tracking Technology

J. Park, Y.K. Cho and K. Kim
Pages 83-89

While Building Information Modeling (BIM) has been increasingly accepted in the construction industry, the rich project information in BIM is still not well utilized to support the field construction management. Project managers need to spend significant time and effort to find out useful project information (such as plans and specifications) for field management, and communicate with construction participants in the ...

Keywords: Building Information Modeling, Bluetooth, Cloud communication, Construction management, Location tracking

Adaptive Control of Bulldozer's Workflows

Alexej Bulgakov, Sergei Emelianov, Thomas Bock and Georgy Tokmakov
Pages 90-97

The most important task for bulldozer's traction mode control is to use its traction capacity in full by means of its end-effectors control. To keep traction mode at maximum or at a given resistance value applied to end-effectors automatically is difficult due to a great number of stochastic factors affecting the bulldozer. Bulldozer is taken as a mechatronic system [1, ...

Keywords: Robotics and mechatronics, Automation and control, Bulldozer, Neural network technologies.

Hybrid Simulation Modeling of Hoist Down-Peak Operations in Construction Sites

Shousheng Xiang, Mehrdad Arashpour and Ron Wakefield
Pages 156-164

The down-peak period is an important aspect of hoist operations in construction projects. To make the vertical transportation service more efficient, the operation parameters of down-peak should be modeled precisely in the process of planning. A simulation model is developed to analyze the operations of elevator in down-peak. The model incorporates hybrid use of discrete-event simulation and agent-based modeling ...

Keywords: Agent-based modeling, Automation, Building projects, Construction management, Discrete event simulation, Elevator planning, Robustness, Process visualization, Validation

Alternative Scheduling and Planning Processes for Hybrid Offsite Construction

Tarek Salama, Ahmad Salah and Osama Moselhi
Pages 165-173

Offsite construction has gathered momentum in recent years due to its improved performance in terms of project cost, schedule, quality, environmental impact, and safety. Offsite prefabricated systems vary depending on the size of prefabricated components, which affect the need for onsite construction. These systems include categories such as modular, panelized, prefabricated, and processed materials construction. Each category has its own ...

Keywords: BIM, Panelized Construction, Planning, Hybrid Offsite Construction Introduction.

A Sequential Pattern Mining Approach to Extract Information from BIM Design Log Files

Saman Yarmohammadi, Reza Pourabolghasem, Arezoo Shirazi, Baabak Ashuri
Pages 174-181

Building Information Modeling (BIM) and its implementation in Architecture, Engineering and Construction (AEC) industry is rapidly growing all over the US. The growing utilization of BIM application has resulted in accumulation of tremendous volumes of computer-generated design data. Such vast datasets provide practitioners with an opportunity to extract valuable information regarding the process of design. Design log files, in particular, ...

Keywords: Building Information Modeling, Data Mining, Sequential Pattern Mining, BIM Log Files

HBIM and Fire Prevention in Historical Building Heritage Management

Giulia Frosini, Carlo Biagini, Pietro Capone, Vincenzo Donato and Tommaso Giusti
Pages 182-190

Italy possesses a unique cultural heritage that is constantly under threat from natural and anthropic risks: fire vulnerability is one of the main causes of architectural heritage destruction. The goal of this work is to propose a methodological approach to the management and preservation of historical building heritage with respect to fire safety. This approach aims to facilitate the process ...

Keywords: HBIM, interoperability, fire safety, historical buildings.

A Framework for Developing an Estimation Model of Damages on Bridge Elements Using Big Data Analytics

Soram Lim, Sehwan Chung, Seokho Chi and Junho Song
Pages 241-249

According to the Ministry of Land, Infrastructure and Transport in Korea, the number of bridges over 30 years old will be three times in 2025 than three thousands in 2015 so that proper maintenance enforcement has emphasized. The Korean government legislated on the Special Act on Safety Control for Infrastructure in 1995 and rated the condition grade of ?A? to ...

Keywords: Bridge Management, Infrastructure Maintenance, Damage Estimation, Big Data

Ergonomic Assessment of Residential Construction Tasks Using System Dynamics

Hossein Abaeian, Ndukeabasi Inyang, Osama Moselhi, Mohamed Al-Hussein and Marwan El-Rich
Pages 258-266

Modular residential construction activities often require prolonged standing, bending, stooping, and material handling, while working in crowded spaces; these activities increase the potential risk of work-related musculoskeletal disorders (WRMSDs), which may worsen over time, resulting in permanent disability and, consequently, the loss of ability to work. The use of system dynamics (SD) modeling to assess ergonomic risks provides a decision ...

Keywords: residential construction task, system dynamics, ergonomic risk

Analytical Model and Data-driven Approach for Concrete Moisture Prediction

Karthick Thiyagarajan and Sarath Kodagoda
Pages 298-306

The advent of smart sensing technologies has opened up new avenues for addressing the billion dollar problem in the wastewater industry of H2S corrosion in concrete sewer pipes, where there is a growing interest in monitoring the environmental properties that govern the rate of corrosion. In this context, this paper proposes a methodology to predict the moisture content of concretes ...

Keywords: Analytical Model, Data-driven approach, Drying-wetting process, Electrical resistivity data, Gaussian Process prediction model, Moisture data.

Automated Construction of Masonry Buildings using Cable-Driven Parallel Robots

T. Bruckmann, H. Mattern, A. Spenglerc, C. Reichert, A. Malkwitz and M. König
Pages 332-340

This paper presents an approach of using cable-driven parallel robots for automated construction. Masonry buildings are considered as appropriate application case due to repetitive construction procedures, high demands on quality as well as accuracy of construction, and handling of small and lightweight material. In this context, the application of Building Information Modeling (BIM) as data source is proposed. Furthermore, a ...

Keywords: Automation and Robotics, Building Information Modeling (BIM), Mechatronics, Simulation

Integration of NDE Measurements and Current Practice in Bridge Deterioration Modeling

Marwa Ahmed, Osama Moselhi and Anjan Bhwomick
Pages 341-349

Deterioration models are required and used in Bridge Management System (BMS) to predict the condition and performance of bridges. Effective maintenance of bridge structure relies on the accuracy of deterioration models used to predict bridge performance. Markov Model is a deterioration forecasting model that is widely used in BMS. However, research showed that Markov Model has many shortcomings. This research ...

Keywords: NDE, Deterioration Modeling, Bridges, DBNs

Discrete and Continuous Simulation Approach to Optimize the Productivity of Modular Construction Element

Mona Afifi, Mohamed Al-Hussein, Simaan Abourizk, Ahmed Fotouh and Ahmed Bouferguene
Pages 350-356

Bolstered by significant productivity improvement in manufacturing technology, the construction paradigm has shifted toward industrialized construction methods, such as modular construction. Modular construction has benefitted from the long term development of the manufacturing technologies and core techniques used in the assembly production lines of construction prefabrication plants. Lean production is a methodological approach for assembly line production that aims to ...

Keywords: Lean, construction, productivity, simulation

Arbitrary 3D Object Extraction from Cluttered Laser Scans Using Local Features

Mohammad Nahangi, Thomas Czerniawski, Christopher Rausch and Carl Haas
Pages 366-373

Determination of construction performance metrics requires intensive processing of large amounts of data collected on construction sites including cluttered laser scans. For example, for quality control of construction components using 3D laser scans, the acquired point cloud should be cleaned and the object-of-interest should be extracted for measuring the incurred deviations. Such a procedure is tedious, time consuming and inaccurate ...

Keywords: Local feature descriptors, hashing, hash table, RANSAC, 3D object recognition, clutter, laser scanning

Incorporating BIM into Architectural Precast Concrete Fabrication

Jeffrey Collins
Pages 392-402

Digital models have many benefits for construction; for example, clash detection prior to approval, ability to confirm assembly sequencing, verification of as-built dimensions, and more. Customizing and preparing such models for project delivery takes a large amount of time and, unfortunately, cannot guarantee that the physical building or part can be built as modeled; a disconnect between design intent and ...

Keywords: Building Information Modeling, BIM-based workflow, Precast concrete, Parametric modeling, Fabrication, Computer Aided Design

Automated 3D Image-Based Section Loss Detection for Finite Element Model Updating

Kasra Ghahremani, Ali Khaloo and David Lattanzi
Pages 403-411

Accurate and rapid condition assessment of in-service infrastructure systems is critical for system-wide prioritization decisions. One major assessment consideration is structural section loss due to deterioration, for instance from corrosion. Modern 3D imaging, which generates high-resolution 3D point clouds, is capable of measuring this degradation. Despite growth in the fields of point cloud analysis, few studies have addressed the potential ...

Keywords: 3D imaging, Condition assessment, Computer vision, Damage detection, Finite element model, Computational mechanics, Structural damage

Fast Terminal Sliding Mode Control for Gantry Cranes

Ansu Man Singh, Van Truong Hoang and Q. P. Ha
Pages 437-443

Cranes remain a vital tool for the construction of infrastructure such as buildings, bridges, etc. Recently, there has been renewed interest in crane automation in dealing with concerns on safety and possible performance degradation due to system uncertainties and disturbances. One potential solution to the problem is the use of robust techniques based on the Sliding Mode Control (SMC) methodology. ...

Keywords: Machine Control Systems, Mechatronics, hoist control, Automation and Robotics

Simulation of HVAC Local Control Based on Occupants Locations and Preferences

Zheng Liu, Shide Salimi and Amin Hammad
Pages 462-469

The Heating, Ventilation and Air Conditioning (HVAC) system consumes the major part of energy in buildings. By analyzing the gap between the actual energy consumed and the required energy to satisfy heating/cooling loads, it is estimated that an average of 38% of the energy can be saved with the adoption of more efficient control strategies. Occupancy-driven management has attracted great ...

Keywords: Energy consumption, energy simulation, occupancy, locations, preferences, HVAC setpoint.

A Multi-Objective Mixed Integer Programming Model for Minimising Obtrusive Effects and Installation Costs of Night-time Lighting on Construction Sites

Ahmed Hammad, Ali Akbarnezhad and David Rey
Pages 505-514

The increase in the rate of urbanisation worldwide has led to a boom in the construction industry sector in most major cities. To cope with the associated rising demand for further services and facilities, contractors find themselves frequently obliged to extend working hours on construction sites. Construction of major infrastructure projects, such as road works, is conducted at times of ...

Keywords: Construction Lighting, Light Pollution, Multi-Objective Optimisation, Mixed Integer Programming, - constraint Method, Sustainable Construction Operations.

Joint Segmentation and Recognition of Worker Actions using Semi-Markov Models

Jun Yang, Zhongke Shi and Ziyan Wu
Pages 522-528

Vision-based automated recognition of worker actions has gain lots of interest during the past few years. However, existing research all requires pre-segmented video clips, which is not applicable in the real situation. Furthermore, pre-segmented videos abandon the temporal information of action transition. A joint action segmentation and recognition method, which can segment continuous video stream while recognizing the action type ...

Keywords: Action Segmentation, Action Recognition, Worker, Semi-Markov Models

Emissions Modelling of Earthmoving Equipment

Khalegh Barati and Xuesong Shen
Pages 538-546

Earthmoving operations produce high amount of emissions and are one of the main sources of air pollutants in construction and mining industries. Modelling and quantifying the emissions produced by earthmoving equipment is the first step for developing emissions reduction schemes. Currently, emissions of construction and mining equipment are mainly estimated through simulation or laboratory tests which may not represent the ...

Keywords: Emissions, Earthmoving Equipment, Field Experiments, Site Observation, Data Analysis

Optimum Driving Pattern for Minimizing Fuel Consumption of On-road Vehicles

Jacob Klein, Xuesong Shen and Khalegh Barati
Pages 555-562

The consumption of fossil fuels by on-road vehicles is the greatest source of air pollution and the second largest source of greenhouse gases (GHGs) globally. The emitted pollutions have caused major problems such as respiratory diseases. Also, as the sources of these types of fuels are diminishing, their price is projected to steadily increase. This necessitates developing strategies and policies ...

Keywords: Fuel Consumption, Statistical Modelling, Fuel Efficiency, On-road Vehicle, Instrumentation

Reduced-order Models for Supporting Energy Audits of Buildings

Mariangela Benedettelli, Alessandro Carbonari, Berardo Naticchia and Massimo Vaccarin
Pages 563-571

An energy audit is a standard process to support the decision-making in the area of energy management. Nevertheless, an energy auditor does not succeed as easily and quickly in identifying all the energy streams in a facility in order to decide whether retrofitting the audited object is beneficial. In fact, energy auditing of buildings is usually a time consuming and ...

Keywords: Energy audit, Reduced-order models, Energy retrofit

Human State Estimation System Implemented in an Office Deployable Getaway Based on Multiple Bio Information

Sayaka Nakaso, Jörg Güttler, Akira Mita and Thomas Bock
Pages 572-580

This article is proposing a human state estimation system on the basis of multiple bio information implemented into a movable cover chair called 'Office Deployable Getaway'. The proposed system consists of 2 sub-systems; the first sub-system analyzes fatigue based on eye movement including blinking rate and eye closure time while the second sub-system analyzes breath frequency. These indicators are detected ...

Keywords: Human-Machine-Interaction, Breath Detection, Fatigue Analyzation, Human Mood, Eye Recognition, Ambient Assisted Living

A Cloud-Based BIM Platform for Information Collaboration

Ling Ma and Rafael Sacks
Pages 581-589

The Model View Definition (MVD) approach to interoperability of BIM models requires software vendors to write export functions that can map their internal representation to the whole scope of each of many domain-specific target MVDs. However, in everyday practical use of models, a user receiving an exchanged model often requires information that is outside the scope of the exporting ...

Keywords: Building Information Modelling, Model View Definition, Cloud based database, Information collaboration, Semantic enrichment

Optimizing the Trajectory of the Painting Robot

Michal Bruzl, Vyacheslav Usmanov, Pavel Svoboda and Rostislav Šulc
Pages 605-612

The main objective of this research work was to create a technological and mathematical model of the robotic arm movement for conducting painting work. For experiment was chosen model of the robotic arm, which corresponds in its construction robots commonly used in industrial production. This model of the robot was adapted to the conditions of carrying out painting work. One ...

Keywords: Mathematical model, Robotic arm, Painting work, Trajectory for moving, Energy of servomotors

Dynamic Space Conflict Modeling for Construction Operations

Arian Saeedfar, Lingguang Song and Satish Gore
Pages 634-641

Site planning is critical for efficient and safe construction operations. Current industry practice primarily relies on highly experienced planers and their personal judgment to anticipate and prevent space conflicts during construction operation. Inaccurate and unreliable site space planning not only leads to major loss of time and cost, but also negatively impact safety performance. Recent research has introduced new planning ...

Keywords: Dynamic Planning, Space Demand, Space Conflict, Safety, Productivity

Low Cost Augmented Reality Framework for Construction Applications

Sai Meghasyam Kodeboyina and Koshy Varghese
Pages 659-668

Augmented Reality can be of immense benefit to the construction industry. The oft-cited benefits of AR in construction industry include real time visualization of projects, project monitoring by overlaying virtual models on actual built structures and onsite information retrieval. But this technology is restricted by the high cost and limited portability of the devices. Further, problems with real time and ...

Keywords: Construction, Augmented Reality, Marker-based Tracking, Information Retrieval, Google Cardboard.

Analysis of Accuracy Factor for 3D Reconstruction using 2D Image Obtained from Unmanned Aerial Vehicle (UAV)

H.L. Ko, S.W. Kwon, S.W. Chung, D.Y. Moon, J.W. Park, J.W. Seo and S.M. Kang
Pages 678-685

Recently UAV has been used in various fields such as construction and civil engineering, disaster, terrain analysis, transportation, etc. In addition, many companies from all over the world are focusing on developing UAV technology. The market of personal UAV has been growing and attracting people's attention year after year due to the low cost of UAV. Especially, in construction industries ...

Keywords: UAV, Structure from motion, illumination

Resource Allocation Methodology of Virtual Desktop Infrastructure in Cloud Computing BIM: Focusing Korean Small and Medium Sized Architectural Design Firm

K.H. Lee, S.W. Kwon, J.H. Shin, D.H. Kim, D.Y. Moon, S.Y. Lee
Pages 694-702

BIM (Building Information Modelling) technology has been expanded for using in construction project during the past 20 years. However, recently its spread has been delayed than the initial expectations, due to the high-cost of BIM infrastructure development, the lack of regulations and process. In design phase, especially, collaboration based on BIM system has being a key factor for successful next ...

Keywords: VDI (Virtual Desktop Infrastructure), Cloud Computing, BIM, Design Collaboration, Virtualization

3D Grid Size Optimization of Automatic Space Analysis for Plant Facility Using Point Cloud Data

Gyuseong Choi, Soonwook Kwon, Dong Hyun Kim, Dae Yoon Moon, Suwan Chung, Song Yi Lee and Hyung Lyul Ko
Pages 711-719

Currently, as plant market grows up, client demands to increase construction quality, technology and to reduce construction time. Due to the vast scale of the construction site and complexity of process, plant project can have some problems of communication among the project participants, the duplication of work, errors and rework. To solve this problem, 3D cloud point data of space ...

Keywords: 3D grid size, Space matching, Point cloud, Laser Scanning

Optimizing Surveillance Camera Placement in Buildings Using BIM

Ameen Albahri and Amin Hammad
Pages 729-734

Surveillance cameras are becoming indispensable tools due to their ability to ensure security in buildings. However, many organizations claim that purchasing, installing and maintaining these cameras are costly. Furthermore, current practices have conducted different 2D and 3D techniques to find the optimum camera placement inside buildings. These techniques have many limitations which can affect the camera coverage. On the other ...

Keywords: Surveillance cameras, BIM, Optimization, Genetic Algorithm

Integration of BIM and FEA in Automation of Building and Bridge Engineering Design

F. Fedorik and T. Makkonen and R. Heikkilä
Pages 735-741

Current development in structural engineering allows designers to create efficient and controlled structural systems, which lead into savings in terms of financial cost, time consumption and lack of lucidity in structural designs. Building Information Modeling (BIM) creates a great opportunity for cooperation of individual experts within one project to maximize an efficiency of the design and minimize errors between concrete ...

Keywords: BIM, FEA, Interoperability, Bridge engineering, Building engineering

Challenges and Opportunities for Implementation of Laser Scanners in Building Construction

Samad M.E. Sepasgozar, Cynthia Wang and Sara Shirowzhan
Pages 742-751

Digital technologies, including hand-held laser scanners and locating systems, are being increasingly introduced to the construction market and have the potential to provide real-time data to create construction information modeling (e.g. shop drawings and as-built). Focusing on the unique advantage of these technologies, this paper identifies the challenges and opportunities for implanting such technologies to create multi-dimensional information modeling based ...

Keywords: Laser Scanner, Implementation, Challenges, Ease of Use, Building Information Modelling, Drawing.

Design and Simulation of a Fuzzy Supervisory Control System Integrated in a Small Public Building

Alessandro Carbonari, Silvia Meschini, Mariangela Benedettelli
Pages 752-760

Public administrations are encouraged to adopt actions for energy requalification of public buildings, which are responsible for considerable amounts of energy consumption. Low-cost technology improvements for energy renovation with high return on investment is a good opportunity when resource shortage hampers the adoption of expensive refurbishment. To this purpose, the integration of advanced control policies may optimize energy use of ...

Keywords: Fuzzy logic, advanced control systems, energy saving, heating system, public buildings

Auto-Layout of Lighting Objects to Support Lighting Design in the Early Phase of Design

Hyunjung Kim, Jinhua Huang, Yeon-Sook Hwang and Jin-Kook Lee
Pages 761-769

This paper aims to propose an approach to automated lighting layout system in indoor space in the perspective of auto-generation of design alternatives. Lighting environment is one of the most important factors in the domain of interior design. Well-designed lighting environment enables occupants to perform their actions safely. Furthermore, it supports occupants? psychological stability. In existing lighting design process, difficultness ...

Keywords: Automated lighting arrangement system, Building information modeling(BIM), Parametric design, Alternative creation,

Evaluation of Lifting Efficiency of Double-Cage Construction Lift in Supertall Building Construction

Wansoub Kim, Dongmin Lee, Taehoon Kim, Seung Woo Kim, Hong-Ku Jung, Hunhee Cho and Kyung-In Kang
Pages 787-795

Construction lifts are key equipment used in the vertical transportation of resources in supertall building construction. Also, according to the increase of vertical lifting distance, construction lifts are becoming more important for successful projects completion. However, a limited number of construction lifts were hard to handle the lifting load during peak-time in which the construction resources are concentrated. Also, a ...

Keywords: Double-cage, Construction Lift, Supertall Building, Lifting Efficiency, Discrete Event Simulation, CYCLONE

Development of the Scenario-Based Evaluation of Indoor Circulation using BIM-enabled Parameters

Jaeyoung Shin, Jin-Kook Lee and Jinhua Huang
Pages 835-843

This paper aims to develop the scenario-based analysis of indoor circulation using BIM-enabled parameterized quantities of a circulation path computed by BIM-enabled applications such as walking distance, spatial topology, number of turns, etc. A building circulation plays an important factor to plan overall spatial configuration based on specific purposes so that it has been one of priorities even in the ...

Keywords: Building Information Modeling (BIM), Indoor circulation, Scenario-based evaluation, Parameterization

Applying Systems Modeling Approaches to Building Construction

Francisco Valdes, Russell Gentry, Charles Eastman, Stephen Forrest
Pages 844-852

Current building modeling environments lack the ability to support coordinated, incremental and systematic description of project requirements, design specifications, and the set of interactions that emerge among them, from different stakeholders, during building design. This paper discusses the prospect of a system-centric modeling framework that integrates a parametric CAD tool with a system modeling application to assess design intent based ...

Keywords: Building Information Modeling, Model Based Systems Engineering, System Modeling Language, Building Construction, Knowledge-Based Design.

Data-Processing Model for Vertical Zoning based on Construction Lift Operation Records for High-rise Building

J.H. Shin, S.W. Kwon, D.H. Kim, D.Y. Moon, S.W. Chung, G.S. Choi and K.H. Lee
Pages 881-888

As recent buildings have been getting higher and larger, vertical construction lift planning and operation are key factor for successful project. Although many studies have been trying to set up a construction lift planning system at early stage before lift installation. But there are not regarding real-time control system for lift during construction stage. In this study, we use sensor ...

Keywords: Construction lift, Vertical zoning, ELIS(Embedded Lift Information System)

A Process-Driven Representation Schema for Masonry Wall Assemblies

Andres Cavieres, Russell Gentry and Charles Eastman
Pages 914-922

The paper introduces a new approach for the representation of masonry walls in Building Information Modeling applications. The proposed representational scheme addresses the different types and levels of information required to support the design and construction of masonry walls. In particular, the paper proposes the concept of masonry wall 'region', as a suitable abstraction to represent the variety of view-dependent ...

Keywords: BIM, Masonry, Representation, Levels of Development, Design Process, IFC.

Data-Driven Scene Parsing Method for Construction Site Monitoring

Hongjo Kim, Kinam Kim and Hyoungkwan Kim
Pages 943-947

This paper presents the applicability of a nonparametric scene parsing model for recognizing all objects in an image. The data-driven model labels all the pixels of query images as their object classes using the labels in similar images of the existing dataset. The model has a flexible number of parameters depending on the size of the training data, it is ...

Keywords: Monitoring, Construction Site, Computer Vision, Image Processing, Scene Parsing, Object Recognition

Integrating Crane Information Models in BIM for Checking the Compliance of Lifting Plan Requirements

Justin K.W. Yeoh, Jun Huat Wong and Le Peng
Pages 966-974

Cranes typically represent the single biggest equipment investment deployed on a construction site. The success of lifting operations depends on addressing project conditions and adequate site safety management. The Crane Lifting Plan (CLP) is a safety document wherein the information required for planning crane lifting operations are encapsulated and analyzed. A range of regulatory, safety and operational requirements must be ...

Keywords: Crane Lifting Plans, Crane Information Model, Regulatory Compliance, Construction Requirements

Development of BIM-Based Real-time Evacuation and Rescue System for Complex Buildings

Min-Yuan Cheng, Kuan-Chang Chiu, Yo-Ming Hsieh, I-Tung Yang and Jui-Sheng Chou
Pages 999-1008

With the architectural environment is constantly changing such as high-rise buildings, high-ceilinged space, and special space constantly constructed, thus the fire disasters are becoming diverse and difficult to predict. Therefore, the development and application of building's fire disaster prevention integration system become an urgent requirement for prevention the disaster and reach all protection of life and property. The response system ...

Keywords: Wireless Sensor Networks, Building Information Modeling, Bluetooth Sensor, Route Optimization, 3D Visualization

Modeling the Permanent Deformation Behavior of Asphalt Mixtures Using a Novel Hybrid Computational Intelligence

Min-Yuan Cheng and Doddy Prayogo
Pages 1009-1015

One of the main causes of pavement rutting is the repetitive action of traffic loads which results in the accumulation of permanent deformations. As a result, it is important to understand the characteristics of the permanent deformation behavior of asphalt mixes under repeated loading and to build the accurate mix model before they are placed in roadways. This study proposed ...

Keywords: Symbiotic Organisms Search, Least Squares Support Vector Machine, Asphalt concrete mixture, Flow number, Prediction

A Framework for Establishing Early Warning System for Working in Hot Environments

Wen Yi, Junxiang Zhu, Xin Liu, Xiangyu Wang and Albert Chan
Pages 1025-1031

Heat stress is a well-known occupational hazard, and climate change together with the increased frequency and intensity of extreme heat events has made risks more severe and widespread. The liquefied natural gas (LNG) construction industry is found to be more susceptible to heat stress than other industries because LNG workers are subjected to heat stress not only from outdoor strenuous ...

Keywords: Heat stress, Health and safety, Liquefied natural gas (LNG) construction industry, Early-warning system

An Integrated INS-GPS-Raspberry Pi System Using the Time-Sphere Model for Real-Time Identification of Struck-by-Equipment Hazard

Jun Wang, Shuming Du and Saiedeh Razavi
Pages 1032-1040

Struck-by-equipment hazard, i.e, contact collision between worker-on-foot and construction equipment or between equipment and equipment, is a major cause of injuries and fatalities in construction. A variety of smart technologies and systems have been developed and utilized to alleviate the risks of this type of hazard. However, most of the existing technologies and systems perform with a high rate of ...

Keywords: Real-Time Hazard Identification, Construction Safety, Technological Innovation, Raspberry Pi, Struck by, False Alarm, 4D Model, Inertial Navigation System

Technical Term Similarity Model for Natural Language Based Data Retrieval in Civil Infrastructure Projects

Tuyen Le and H. David Jeong
Pages 1048-1055

Recent advances in data and information technologies have enabled extensive digital datasets to be available to decision makers during the life cycle of a civil infrastructure project. However, much of the data is not yet fully reused due to the challenging and time consuming process of extracting the desired data for a specific purpose. Digital datasets are presented only in ...

Keywords: Civil infrastructure project, Landxml, Data retrieval, Natural language interface, NLP, Vector space model

Consolidated Exchange Models for Implementing Precast Concrete Model View Definition

Kereshmeh Afsari and Charles Eastman
Pages 1056-1064

The US National BIM Standard proposes facilitating information exchanges through Model View Definitions (MVDs). An MVD, defines a subset of the IFC schema that is needed to satisfy one or many exchange requirements of the AEC industry. In the MVD definition for precast concrete domain specified in precast concrete Information Delivery Manual (IDM), four sets of Exchange Models (EMs) have ...

Keywords: Exchange Model, MVD, Precast Concrete, IFC, BIM

A Model for Real-Time Control of Industrial Robots

Fereshteh Shahmiri and Jeremy Ficca
Pages 1065-1072

In this study a user-friendly model is developed for architects and designers without advanced programming skills who need to operate their projects in a real-time workflow from parametric design to robotic fabrication. Based on the implemented network capabilities in proposed model, not only one but also multiple robotic arms can interact and collaborate with design model data. In the network ...

Keywords: Real-time, Networking, Socket Communication, TCP/IP, UDP, Robotic Fabrication

Cloud-Based BIM Data Transmission: Current Status and Challenges

Kereshmeh Afsari, Charles Eastman and Dennis Shelden
Pages 1073-1080

In the architecture, engineering and construction (AEC) industry model-based data exchange methods are mainly based on manual file transfer, data conversion, and data-merge. File-based Building Information Model (BIM) data exchange is either in vendor specific file formats or neutral format using Industry Foundation Classes (IFC). IFC Model View Definitions (MVDs) proposed by the US National BIM Standard can assist cross-platform ...

Keywords: BIM, Cloud Computing, Data Exchange, IFC

2015 Proceedings of the 32nd ISARC, Oulu, Finland 2015

A Cloud-based System Framework for Storage and Analysis on Big Data of Massive BIMs

Hung-Ming Chen, Kai-Chuan Chang
Pages 1-8

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 using various online devices anywhere anytime for information sharing and ...

Keywords: Cloud Computing, Big Data Analysis, BIM

Automatic Detailing of Parametric Sketches by Graph Transformation

Simon Vilgertshofer, André Borrmann
Pages 1-8

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 across the different LoDs in the case of modifications. Previous ...

Keywords: Product Modeling, Level of Detail, Multi-scale Modeling, Graph Transformation, Parametric Modeling

Development of a Monitoring System with Adjusted Multiple Images of Construction Site

Soungho Chae, Ryo Mizutani
Pages 1-5

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 evaluation results confirm that the system is effective for assessing ...

Keywords: process control, camera images, monitoring, tower crane

Evalutation of Agent-Based and Discrete-Event Simulation for Modeling Construction Earthmoving Operations

Emile Zankoul, Hiam Khoury, Rita Awwad
Pages 1-8

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 over the years, whereby the need to continuously find ways ...

Keywords: Construction Management; Simulation Modeling; Discrete-Event Simulation, Agent-Based Modeling; Earthwork;

Impact of Building Occupancy on Assessing the Effectiveness of Energy Conservation Measures

Nan Li, Zheng Yang, Chao Tang, Nanlin Chen, Burcin Becerik-Gerber
Pages 1-6

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 measured performance of the ECMs. One possible reason for such ...

Keywords: Energy conservation measure, Building energy simulation, Energy model, Occupancy, Calibration

Improving Planning in Congested Sites Using 3D and 4D Modelling: A Case Study of a Pile-Supported Excavation Project in Chile

Mauricio Toledo, Camila Matabenitez, Miguel Mora
Pages 1-8

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 from the use of 3D and 4D models to improve ...

Keywords: 4D model, BIM, Excavation, Civil works, Construction strategy, Soil pixel

Integrated Framework for Automating the Structural Design Iteration

Purva Mujumdar, J. Uma Maheswari
Pages 1-8

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 this design process in STAAD, iterations generally occur either due ...

Keywords: Iteration, Cycles/loops, Construction projects, OpenSTAAD, STAAD

Methods for Simulating Crane-Deployment Plans Used in Construction of Nuclear Power Plants

Yohei Sugimoto, Hiroshi Seki, Takahiro Samo, Norihiko Nakamitsu
Pages 1-8

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. First, civil contractors make crane-deployment plans, which consist of crane ...

Keywords: Construction, Nuclear power plant, Crane deployment, Utilization rate, 4D-CAD, Statistical estimation

Optimization of the Quantity Take-off (QTO) Process for Mechanical, Electrical and Plumbing (MEP) Trades in Tender Estimation Phase of the Construction Projects

Milad Rajabi, Thomas Bigga, Mathias A. Bartl
Pages 1-8

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 and effort is required to keep these files up to ...

Keywords: MEP; RIB iTWO; QTO; Building Model; logics

Robotized Method for Manufacturing Individual Concrete Elements with Specific Shapes

Tapio Heikkilä, Pentti Vähä, Tuomas Seppälä
Pages 1-5

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 manufacturing individual concrete elements with specific shapes. It is based ...

Keywords: Mould making, manufacturing of concrete elements with specific shape, automatic path planning, robotized method

State of Research in Automatic As-Built Modelling

Viorica Patraucean, Iro Armeni, Mohammad Nahangi, Jamie Yeung, Ioannis Brilakis, Carl Haas
Pages 1-7

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. The purpose of this paper is to provide a general ...

Keywords: Building Information Model (BIM), as-built modelling, as-built BIM, as-designed BIM

Utilisation of a New Terrestrial Scanner for Reconstruction of As-Built Models: A Comparative Study

Samad Sepasgozar, Samsung Lim, Sara Shirowzhan, Peter (Y.M.) Kim, Zahra Moussavi Nadoushani
Pages 1-9

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 new Scan Station that enables contractors to acquire accurate data ...

Keywords: Implementation, lidar, Construction technology, Building Information Modelling; laser scanner

Vision-Based Articulated Machine Pose Estimation for Excavation Monitoring and Guidance

Chen Feng, Suyang Dong, Kurt M. Lundeen, Yong Xiao, Vineet R. Kamat
Pages 1-9

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 both safety and productivity in many construction tasks. A computer ...

Keywords: Marker-based Pose Estimation, Excavation Monitoring and Guidance, Excavation Safety

A Study on Design of Virtual Desktop Infrastructure (VDI) System Model for Cloud Computing BIM Service

Kyuhyup Lee, Soonwook Kwon, Joongwhan Shin, Gyusung Choi
Pages 1-6

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 being a key factor for successful next generation building project. ...

Keywords: VDI(Virtual Desktop Infrastructure), Cloud Computing, BIM, Design Collaboration, Virtualization

An Ontology for Process Information Modeling

Seongki Lee, Shabtai Isaac, Thomas Bock
Pages 1-7

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 studied. In order to support the proper handling of construction ...

Keywords: Process Information Modeling System, Ontology, Construction Automation, Simulation

Automated Progress Monitoring Based on Photogrammetric Point Clouds and Precedence Relationship Graphs

Alexander Braun, Sebastian Tuttas, André Borrmann, Uwe Stilla
Pages 1-7

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, due to the numerous obstructions found on a construction site, ...

Keywords: progress monitoring, photogrammetry, process scheduling,

Automated Quality Inspection of Precast Concrete Elements with Irregular Shapes Using Terrestrial Laser Scanner and BIM Technology

Qian Wang, Jack C.P. Cheng, Hoon Sohn
Pages 1-8

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) has been used to improve quality inspection. The authors' group ...

Keywords: Automated Dimension Estimation, Precast Element, Terrestrial Laser Scanner, Building Information Modeling, Irregular Shape

BIM Studio - An Immersive Curricular Tool for Construction Project Management Education

V. Paul C. Charlesraj, Anil Sawhney, Manav Mahan Singh, Aiswarya Sreekumar
Pages 1-8

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 an offshoot of an ongoing sponsored research project aims at ...

Keywords: Building Information Modeling, BIM Studio, Curricular Tool, Construction Project Management, Project Management Education

Challenges in Generation of As-Is Bridge Information Model: A Case Study

Varun Kasireddy, Burcu Akinci
Pages 1-8

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 awareness in order to thoroughly recall past condition information, just ...

Keywords: Automation, Robotics, Laser scanning, Bridge Information Modeling, As-is BrIM, Bridges, Bridge Inspection, Point Cloud, Deviation Analysis, Infrastructure Modeling, Semantic-rich bridge models

Computational Support for Tunneling Activities: A Case Study in the Construction of the New Subway System of Santiago, Chile

Miguel Mora, Juan Sandoval, Mauricio Toledo
Pages 1-7

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 case study with the aim of evaluating how the current ...

Keywords: IFC, Tunneling, Interoperability

Coordination of Cost Estimation for Industrialized Residential Projects Through the Use of BIM

Beda Barkokebas, Samer Bu Hamdan, Mohamed Al-Hussein, Juan D. Manrique
Pages 1-6

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 use management tools and spreadsheets to assist in project estimating ...

Keywords: BIM, Cost, Estimation, Automation, Coordination

Fabrication of BIM CAVE 2: Challenges in Handling 9 Screen Walls

Julian Kang, Jaeheum Yeon, Swarochisa Kangregula
Pages 1-5

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 that they are actually walking in the model. As Building ...

Keywords: BIM, CAVE, Advanced Computing

Global Positioning System Data to Model and Visualize Workspace Density in Construction Safety Planning

Sijie Zhang, Jochen Teizer, Nipesh Pradhananga
Pages 1-7

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 construction planning that can pro-actively improve construction safety. The presented ...

Keywords: construction safety and health, building information modeling, workspace modeling, global positioning system.

IFC-CityGML LOD Mapping Automation Based on Multi-Processing

Tae Wook Kang, Chang Hee Hong
Pages 1-8

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 on integrating or mapping BIM object information to Geographic Information ...

Keywords: IFC, CityGML, LOD, multiprocessing, mapping, conversion

Implementation of an Open and Interoperable Process to Optimise Design and Construction Phases of a Residential Building Project: A Case Study Using BIM in a Public Procurement

Angelo Luigi Camillo Ciribini, Silvia Mastrolembo Ventura, Michela Paneroni
Pages 1-9

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 actual residential building designed in a compact urban context of ...

Keywords: Building Information Modeling (BIM), Interoperability, Model Checking, 4D Modeling

Integration of Building Information Modeling (BIM) and LEED's Location and Transportation Category

Po-Han Chen, Thanh Chuong Nguyen
Pages 1-3

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 based on traditional maps with manual calculations, which require a ...

Keywords: Green Buildings, LEED, Sustainable construction

IT Procedures for Simulation of Historical Building Restoration Site

Carlo Biagini, Pietro Capone, Vincenzo Donato, Nora Facchini
Pages 1-8

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 compatible solutions that avoid to endanger the cultural significance of ...

Keywords: BIM, Historical Building Information Modeling, Site Modeling, Site Simulation, Restoration Interventions Management.

Model Based Quality Assurance Process in a Infra Construction Project - Case Riippa-Eskola RU2 -Double Rail Project

Mika Jaakkola, Pasi Toppi
Pages 1-6

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 used for quality assurance for cuttings, em-bankments and road layers ...

Keywords: Model based construction, BIM, quality assurance, inframodel

Planning for Scanning Using Building Information Models: A Novel Approach with Occlusion Handling

Humayun Biswas, Frédéric Bosché, Ming Sun
Pages 1-8

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 -- is still done quite subjectively by surveyors and is ...

Keywords: Laser Scanning; BIM; 3D; Point clouds; Planning; Quality; Precision; Covered surface; Occlusion

A Field-Oriented Test-Simulation of Embedded Lift Information System for High Rise Buildings

Joonghwan Shin, Soonwook Kwon, Thomas Bock, Daeyoon Moon
Pages 1-7

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 decision how to control and monitor numerous lifts by integrated ...

Keywords: ELIS(Embedded Lift Information System), Sensor fusion, Real-time control, Automated Construction

A Study on Generation of 3D Model and Mesh Image of Excavation Work Using UAV

Donghyun Kim, Soonwook Kwon, Suwan Jung, Sooyeal Park, Jaewoo Park, Jongwon Seo
Pages 1-7

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 recent times. Unmanned Aerial vehicles (UAVs), aerial movable image sensing ...

Keywords: Miniature Unmanned Aerial Vehicles (UAVs), Optimal algorithm, Generating 3D model, Earthwork

Attenuation-Based Methodology for Condition Assessment of Concrete Bridge Decks Using GPR

Kien Dinh, Nenad Gucunski, Jinyoung Kim, Trung Duong, Hung La
Pages 1-8

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 performing GPR attenuation analysis. Also based on correlation between A-scans, ...

Keywords: Ground Penetrating Radar (GPR), Nondestructive Evaluation (NDE), Concrete Bridge Decks, Bridge Inspection.

Framework for Evaluating the Thermal Insulation Performance of Existing Residential Buildings Using the Infrared Thermal Image and Image Processing Method

Taehoon Hong, Kwangbok Jeong, Choongwan Koo
Pages 1-4

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 studies have focused on thermal insulation materials and systems in ...

Keywords: Image processing, Infrared thermography, Building integrated photovoltaic system (BIPV).

IMU-Based Indoor Localization for Construction Applications

Magdy Ibrahim, Osama Moselhi
Pages 1-8

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 applications due to the lack of signal coverage; particularly inside ...

Keywords: Indoor Localization, Inertial Measurement Unit, 9DoF, Direct Cosine Matrix Algorithm

Mobile Laser Scanning Technology in Road Depression Measurements

Jussi Leinonen, Mika Jaakkola, Heikki Onninen
Pages 1-9

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 Porvoo, Finland, were chosen for test sites. Both of them ...

Keywords: Mobile Laser Scanning, Lidar, Point Cloud, Road Depression, 3D-model

Modeling Emissions of Construction and Mining Equipment by Tracking Field Operations

Khalegh Barati, Xuesong Shen
Pages 1-9

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 approximately based on consumed fuel for emission tax purpose. Despite ...

Keywords: Greenhouse gases, automated data collection, portable emission measurement system, pollutants emission rate, construction and mining machinery, emission regulation

Robotic Kinematics Analogy for Realignment of Defective Construction Assemblies

Mohammad Nahangi, Jamie Yeung, Carl Haas, Scott Walbridge, Jeffrey West
Pages 1-7

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 severe problems. In order to address such a challenging problem ...

Keywords: Realignment and refit; 3D imaging; Robotics; Inverse kinematics; As-built status assessment.

Semantic AsBuilt 3D Modeling of Buildings Under Construction from Laser-Scan Data Based on Local Convexity without an As-Planned Model

Hyojoo Son, Jongchul Na, Changwan Kim
Pages 1-6

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 as-built BIM needs to be generated and updated during or ...

Keywords: As-built information, Progress measurement, 3D point clouds

A Sway Reduction Controller for Construction Crane

Sheng-Yung Cheng, Tai-Yen Kuo, Ci-Jyun Liang, Shih-Chung Kang
Pages 1-4

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 of movement. In this paper, we design and produce a ...

Keywords: Crane, anti-vibration, scaled-model

Analytical Tunnel-Boring Machine Pose Precision and Sensitivity Evaluation for Underground Tunnelling

Duanshun Li, Sheng Mao, Ming Lu, Xuesong Shen
Pages 1-9

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 including commonly used laser point tracking system. This makes it ...

Keywords: TBM, Navigation, Analytical, Error propagation, accuracy, sensitivity

Augmented Reality-Based Tele-Robotic System Architecture for On-Site Construction

Dhinesh K. Sukumar, Seongki Lee, Christos Georgoulas, Thomas Bock
Pages 1-8

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 worst but commonly happening cases. In this sense, applying innovative ...

Keywords: Virtual Reality, Building Information Modeling, Robot Oriented Design, Assembly Process, Oculus VR

Automated Measurement and Estimation of Concrete Strength by Mobile Robot with Small-Sized Grinding Drill

Fumihiro Inoue, Satoshi Yuzawa, Satoshi Sato, Shinya Watanabe
Pages 1-6

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 a constant as the torque depending on load. However, the ...

Keywords: Estimation Method, Concrete Strength, Grinding Drill, Torque Motor Control, Mobile Robot

Development of a Smart Shoe for Building a Real-Time 3D Map

Luan Nguyen, Hung La
Pages 1-8

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 natural localization challenges, not much research for 3D mapping wearable ...

Keywords: Robotics, 3D Mapping, Real-time 3D Mapping Algorithms, SLAM

Electromechanical Development of a Low Cost End Effector Pose Estimation System for Articulated Excavators

Kurt M. Lundeen, Suyang Dong, Nicholas Fredricks, Manu Akula, Vineet R. Kamat
Pages 1-8

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 systems determine end effector pose via kinematic chains passing through ...

Keywords: Marker-based Pose Estimation, Excavation Monitoring and Guidance, Excavation Safety, Alternative Sensor Design

A BIM-Based Simulation Model for Inventory Management in Panelized Construction

Samer Bu Hamdan, Beda Barkokebas, Juan D. Manrique, Mohamed Al-Hussein
Pages 1-6

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 rate that exceeds that of on-site assembly of the panels, ...

Keywords: Panelized construction, Inventory management, simulation, Building Information Modeling

A Lumped Parameter Model for Dynamic Simulation of Energy Control Policies Applied to Small Public Buildings

Riccardo Pontoni, Martina Giuliani, Alessandro Carbonari, Massimo Vaccarini
Pages 1-8

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 order to properly plan such a process, a detailed energy ...

Keywords: Automated control policies, energy savings, advanced thermal simulation.

FloodViz: A Visual-Based Decision Support System for Flood Hazard Warning

Er-Xuan Sung, Meng-Han Tsai, Shih-Chung Kang
Pages 1-8

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 information in real time is required. We developed a visual-based ...

Keywords: decision support system, information visualization, real-time system, flood hazard warning

Mathematical Modelling of Phosphorus Accumulation in Photo-Biological Treatment Plants of a Biosphere-Compatible City

Natalia Buzalo, Pavel Ermachenko, Alexej Bulgakov, Thomas Bock
Pages 1-9

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 microalgae-bacteria human ecosystem. One of the problems for systems of ...

Keywords: Biosphere Compatibility of Cities, Mathematical Modelling, Photobioreactor, Treatment Plants

The Effectiveness of an Intelligent System for Real-Time Hygrothermal Management in Low Energy Buildings

Carlo Argiolas, Martina Basciu, Emanuela Quaquero, Barbara Orgiano
Pages 1-8

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 achieve better performances. The slavish copy of construction methods, without ...

Keywords: Low energy buildings, Bayesian networks, CO2 emissions

A Comparison of Mixed Integer Programming Models for the Construction Site Layout Problem

Ahmed W. A. Hammad, Ali Akbarnezhad, David Rey
Pages 1-9

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 the problem, particularly in regards to the assumptions and constraints ...

Keywords: Construction site layout planning; Optimisation; Mixed Integer Programming

An Approach to the BIM-Enabled Assessment of Building Circulation Using Quantitative Data and its Weight

Jaeyoung Shin, Hyunsoo Lee, Sangik Lee, Seokyung Park, Hyunjung Kim, Jin-Kook Lee
Pages 1-7

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 Information Modeling) and its applications enable us to examine various ...

Keywords: Assessment of Building Circulation, Quantitative data, BIM

Integrated Simulation Model for Maintenance and Repair Optimisation for Rubble Mound Coastal Structures Using Markov Chains, Regression and Genetic Algorithms

Ayman El Hakea, Soliman Abu-Samra, Ossama Hosny, Moheb Iskander, Hesham Osman
Pages 1-8

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 especially in low-lying coastal areas. This research provides an integrated ...

Keywords: Optimization, Maintenance, Repair, Cost, Rubble Mound, Coastal, Structures, Markov Chains, Genetic Algorithms

Optimal Method of Building Elevator Selection from the Point of their Energy Consumption Minimizing

Jozef Gasparík, Sylvia Szalayová
Pages 1-7

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 contribution to refer to one of the ways as early ...

Keywords: Construction lifts, optimal method, energy consumtion

Optimal Reduction of Project Risk Severity: A Case Study

Nael Zabel, Maged Georgy, Moheeb Ibrahim
Pages 1-7

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 dynamics rather difficult to understand and control. A research was ...

Keywords: Dynamic Risk Map, Ant colony model, Risk Severity, Mega Projects

Predicting Carbon Monoxide Emissions with Multivariate Adaptive Regression Splines (MARS) and Artificial Neural Networks (ANNs)

Seth Daniel Oduro, Santanu Metia, Hiep Duc, Quang P. Ha
Pages 1-9

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 with the artificial neural networks (ANN) for the purpose of ...

Keywords: Carbon Monoxide, On-Board Emission Measurement System, Chassis Dyanamometer Testing System, Emission.

Reopening an Abandoned Underground Mine - 3D Digital Mine Inventory Model from Historical Data and Rapid Laser Scanning

Tomi Makkonen, Rauno Heikkilä, Jouko Jylänki, Stephen Fraser
Pages 1-8

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 both to prove up an ore reserve and to assess ...

Keywords: mine; reopening mine; BIM; historical data, point-cloud laser scans

2014 Proceedings of the 31st ISARC, Sydney, Australia 2014

Economic Model Predictive Control - A Review

Tri Tran, K.-V. Linga, Jan M. Maciejowski
Pages 35-42

Leveraging the advanced estimation and control algorithms for power systems have always been associated with the renewable energy sources, rational power generation, consumer stimulus, emission reduction, as well as economically viable objectives. The model predictive control (MPC) strategies, that employ an economic-related cost function for real-time control, has lately proved a numerically ef?cient approach to managing the portfolio of energy ...

Keywords: Economic MPC, Quadratic dissipativity constraint

Modified Discrete Event Simulation Algorithm for Control of Automated Construction Operations

Joseph Louis, Phillip Dunston
Pages 126-133

Few robots are found on the worksite today and the construction process has remained unchanged since pre-industrial times, the only major advancement being the replacement of human and animal power with motors, despite research efforts in construction automation. Contrarily, the planning stages of projects have benefited from advances in simulation and modeling technologies. We propose a mechanism for leveraging information ...

Keywords: Automation and Control, Simulation, Robots, Construction Operations

Performance Test for Rapid Surface Modeling of DynamicConstruction Equipment from Laser Scanner Data

C. Wang, Y.K. Cho
Pages 134-141

In modern dynamic construction fields, more attention has been paid on safely operating heavy construction equipment such as cranes, excavators, and concrete pump. In order to improve the safety in complicated jobsites, it is highly required to provide heavy equipment operators with accurate measurement of on-site objects in near real time. In this paper, a rapid surface modeling method and ...

Keywords: Construction equipment, Point cloud, Object recognition, 3D modeling, Safety

Offshore Container Crane Systems with Robust OptimalSliding Mode Control

R. M. T. Raja Ismail, Nguyen D. That, Q. P. Ha
Pages 149-156

Open-sea ship-to-ship transfer operation is an alternative way to avoid port congestion. This process involves a relatively small vessel which transports containers between the harbour and a large cargo ship equipped with a container crane. However, the presence of disturbances and uncertainties caused by harsh open-sea conditions can produce an excessive sway to the hoisting ropes of the crane system. ...

Keywords: Sliding mode control, Offshore crane, Ocean wave, Gusty wind, Lyapunov, Linear Quadratic Regulator (LQR).

Towards Autonomous Robotic In-Situ Assembly on Unstructured Construction Sites Using Monocular Vision

C. Feng, Y. Xiao, A. Willette, W. McGee, V.R. Kamat
Pages 163-170

Unlike robotics in the manufacturing industry, on-site construction robotics has to consider and address two unique challenges: 1) the rugged, evolving, and unstructured environment of typical work sites; 2) the reversed spatial relationship between the product and the manipulator, i.e. the manipulator has to travel to and localize itself at the work face, rather than a partially complete product arriving ...

Keywords: On-Site Construction Robotics, Autonomous Assembly, Modular Construction, Pose Estimation

A New Hysteretic Model for Magnetorheological Elastomer Base Isolator and Parameter Identification Based on Modified Artificial Fish Swarm Algorithm

Y. Yu, Y. Li, J. Li
Pages 176-183

Magnetorheological elastomer (MRE) base isolator is a new semi-active control device that has recently acquired more attention. This paper proposes a new model for MRE base isolator to portray the nonlinear hysteresis between generated force and the displacement. In this model, a hyperbolic expression is proposed to compare with the classical Bouc-Wen model, which includes internal dynamics represented by a ...

Keywords: Base isolation; Magnetorheological elastomer; Parameter identification; Artificial fish swarm

Development of Lightweight BIM Shape Format Structureto Represent Large Volume Geometry Objects Using GISwith Facility Management

T.W. Kang, C.H. Hong
Pages 185-193

This study focuses on the development of a lightweight building information management (BIM) shape format (LBSF) structure to represent largevolume BIM geometry objects using the geographical information system (GIS) with building facility management. Recently, BIM-based facility management with GIS has been researched with regard to urban facility management. To implement this use case, the BIM geometry objects are required to ...

Keywords: BIM, Lightweight, Shape, Format, Performance

The Adoption of Building Information Modeling in the Design Organization: An Empirical Study of Architects inKorean Design Firms

H. Son, S. Lee, N. Hwang, C. Kim
Pages 194-201

Recently, Building Information Modeling (BIM) technology has attracted much attention in the Architecture, Engineering, and Construction (AEC) industry. Despite the growing interest in BIM technology, the benefits of BIM have not yet been fully realized during the course of implementation of BIM because of its low adoption rate among architects. Therefore, it is significant important in successful adoption of BIM ...

Keywords: Behavioral intention, Building and architecture, uilding information modeling, Technology acceptance model, Design organizations

A Demonstration of BIM-Enabled Quantitative Circulation Analysis Using BERA Language

Hyunsoo Lee, Jisoo Kim, Minkyu Shin, Inhan Kim, Jin-Kook Lee
Pages 202-209

This paper describes a BIM-enabled spatial analysis approach that enables us to compute specific quantitative data using BERA (Building Environment Rule and Analysis) Language and its tool. By comparing design alternatives for an actual building model, this paper also demonstrates building circulation and its associated properties of numeric data. The conventional software-driven approaches have intrinsic limitations that include limited interfaces, ...

Keywords: Indoor spatial analysis, automated design review, rule-checking, BERA language, building circulation, Numeric data, NDBC

Wood-Frame Wall Panel Sequencing Based on Discrete-Event Simulation and Particle Swarm Optimization

Mohammed Sadiq Altaf, Mohamed Al-Hussein, Haitao Yu
Pages 254-261

In recent years off-site construction has become popular in North America due to the superior quality of the product, improved productivity, and reduced environmental impact. The panelized construction approach is one of the most readily utilized off-site construction methods. In a wood-frame panelized construction plant, wall panels are customized according to various design parameters such as length; height; number of ...

Keywords: Panelized construction, Discrete-event simulation, Particle swarm optimization, Panel sequencing

Post-Simulation Visualization Application for Production Improvement of Modular Construction Manufacturing

M. Moghadam, B. Barkokebas, M. Al-Hussein
Pages 270-277

The modular construction manufacturing (MCM) process is a complex operation that combines line flow product movement with a complex activity precedence network. There are physical constraints related to the given facility, as well as logical constraints caused by demand variation. In order to change production line layout and make improvements within the context of Lean, a tool is needed to ...

Keywords: Modular Construction Manufacturing, Lean, Production, Simulation, Visualization, Resource Utilization

BIM-Based Integrated Framework for Detailed Cost Estimation and Schedule Planning of Construction Projects

Hexu Liu, Ming Lu, Mohamed Al-Hussein
Pages 286-294

With the increasing popularity of Building Information Modeling (BIM), several research studies have focused on its application in the construction industry, and advancements such as developments of BIM-based tools for construction scheduling and cost estimating have been carried out. Nevertheless, these tools are each developed only for one particular aspect of construction management, such as scheduling or cost estimating. As ...

Keywords: Building Information Modeling, Integrated Framework, Detailed Cost Estimation, Construction Scheduling

A Discrete Firefly Algorithm for the Scaffolding Modular Construction in Mega Projects

J.J. Liu, L. Hou, X.Y. Wang
Pages 295-301

Productivity is critical to large and complex capital projects in sectors like infrastructure and resources. It normally relates to a significant scheduling issue when pursuing both time and cost objectives. A poor planning of project schedule might incur both excessive labour cost and project delay. Looking at scaffolding activity, a foremost and prerequisite construction activity for the subsequence LNG equipment ...

Keywords: LNG, Time and cost trade-offs (TCTPs), Firefly Optimization Algorithm, Scaffolding

Enhanced Online LS-SVM Using EMD Algorithm for Prices Prediction of Building Materials

Ying-Hao Yu, Hsiao-Che Chien, Pi-Hui Ting, Jung-Yi Jiang, Pei-Yin Chen
Pages 302-308

Cost estimation is economically critical before starting off a construction project. One of the essential assignments for materials’ prices prediction is to control the cost of inventory. Even though the prediction system based on support vector machine (SVM) recently has been emerged as a favourable choice, the prediction accuracy of SVM is usually deteriorated with nonstationary price data. Thus the ...

Keywords: Support Vector Machine, Nonstationary Data, Empirical Mode Decomposition, Intrinsic Mode Functions, Online LS-SVM

A Model for Construction Contractor Selection Using Competitive Intelligence (CI)

Mahdi Safa, Arash Shahi, Carl T. Haas, Majeed Safa, Keith Hipel, Sandra MacGillivray, Dawn Fiander-McCann
Pages 329-336

While comprehensive and ongoing competitive intelligence (CI) is employed in a variety of industries to provide valuable input for broad strategic decisions, the construction industry lags behind in adopting this technique. This paper presents a CI model for use in the construction contractor selection process, which is a critical element of construction project management and one that inherently entails risk ...

Keywords: Construction management, Competitive Intelligence (CI), Megaproject, Contractor selection, Risk

5D BIM: A Case Study of an Implementation Strategy in the Construction Industry

Anoop Sattineni, Jennifer A. Macdonald
Pages 361-367

Several factors have contributed to the growth of BIM usage in the global construction industry, including availability of appropriate software and hardware tools, the opportunity to minimize errors, waste & cost and increasingly competitive markets [1][2]. An emerging approach in the construction industry is the use of 5D-BIM, by combining the traditional three dimensions of a BIM with the schedule ...

Keywords: Construction Management, 5D-BIM, Case Study, 5D-BIM Implementation

Simulation of On-Shore Wind Farm Construction Process in Lebanon

E. Zankoul, H. Khoury
Pages 368-376

For the past thirty years, Lebanon has been experiencing cuts in electricity, thus compelled to import it and use noisy and extremely unhealthy generators. This happened at very high prices with even mediocre quality. Hence, an adequate solution to this shortage in electricity supply can be achieved through the use of renewable energies, in particular wind energy or power produced ...

Keywords: Construction Management, Wind Energy, Wind Farm, Simulation, Optimization, AnyLogic

Developing an Ontology-Based Representation Framework for Establishing Cost Analysis Knowledge Base for Construction Work Items

Han-Hsiang Wang, Shao-Wei Weng, Abdoul Aziz Gansonre, Wei-Chih Wang
Pages 377-384

Successful implementation of construction projects depends on accurate cost estimation. Cost analysis of construction work items is essential to a cost estimating process for contractors. However, current cost analysis tasks cannot be implemented effectively in practices. Therefore, this study proposes an ontology-based representation framework that aims to address such practical problems. The framework can be used to establish a cost ...

Keywords: Construction Management, Cost Analysis, Cost Estimation, Ontological Modeling, Ontology

An Integrated 5D Tool for Quantification of Construction Process Emissions and Accident Identification

J.K.W. Wong, H. Li, G. Chan, H. Wang, T. Huang, E. Luo
Pages 393-397

The environmental and safety performance of construction sites are increasingly regarded as critical factors that need to be monitored for the successful completion of construction projects. Research has also repeatedly highlighted the need to minimise the carbon footprint of the construction process and enhance the capacity of the project team and on-site workers in detecting and avoiding potential construction site ...

Keywords: Carbon emissions, construction process, virtual prototyping, construction accidents

Automation for Mobile Crane Motion Planning in Industrial Projects

Zhen Lei, SangHyeok Han, Ahmed Bouferguène, Mohamed Al-Hussein, Ulrich Hermann
Pages 410-417

Mobile cranes are used to lift heavy modules in industrial projects. These heavy modules are often prefabricated and each project consists of a large number of lifts (e.g., a typical industrial project may have between 150 and 1000 modules to be lifted). To ensure the safety and efficiency of these lifting activities, crane motion planning is needed. However, in practice, ...

Keywords: Mobile crane, motion planning, industrial projects, 3D visualization

A Study on Significance of System Dynamics Approach in Understanding Adoption of Information Technology in Building Construction Projects

Vinay Mathews, Koshy Varghese, Ashwin Mahalingam
Pages 418-425

Today several activities of a construction project can be supported with information technology tools. However, there have been many cases of technology adoption failure. Lack of understanding about the process of technology adoption is often pointed out as the reason. This paper is based on a study to explore BIM technology adoption process and attempt to model and evaluate the ...

Keywords: System dynamics, Construction projects, Information technology, Adoption

A Knowledge-Based Framework for Quantity Takeoff and Cost Estimation in the AEC Industry Using BIM

S. Aram, C. Eastman, R. Sacks
Pages 434-442

An important set of information provided through Building Information Modeling (BIM) platforms are quantitative properties of design elements and assemblies. The capability to extract or deduce such quantitative properties from explicit and implicit model information is essential for bidding, procurement, production planning, and cost control activities in the AEC projects. Current solutions for quantity take off (QTO) and cost estimation ...

Keywords: Knowledge based systems, knowledge inference, quantity take off, cost estimation, precast concrete

A BIM Based Construction Site Layout Planning Framework Considering Actual Travel Paths

J.C.P Cheng, S.S. Kumar
Pages 450-457

Construction site layout planning (CSLP) is recognized as a crucial component of construction management. The objective of CSLP is to determine the best arrangement of temporary facilities on a construction site, which would minimize the transportation distance of site personnel and equipment. It could be achieved by creating dynamic layout models that allow layout planners to cater the changing requirements ...

Keywords: Construction site layout planning (CSLP), Building information modelling (BIM), Genetic algorithm (GA), Non-Euclidean distance

A Formwork Layout Model Based on Genetic Algorithm

D. Lee, H. Lim, T. Kim, H. Cho, K.I. Kang
Pages 474-479

The recent increase in the number of irregularly shaped tall building has caused a continuous increase in the formwork costs. To reduce the cost of forms, modular forms are widely used since they are cheap and reusable. However, they cannot be applied around columns which are irregularly arranged. This study introduces a formwork layout model using a genetic algorithm to ...

Keywords: formwork layout, optimization, genetic algorithm, tall building

Energy-Efficient Air-Cooled DX Air-Conditioning Systems with Liquid Pressure Amplification

V. Vakiloroaya, Q.P. Ha
Pages 489-498

The objective of this study is to explore an optimal strategy on energy consumption for a direct expansion (DX) air-conditioning system by using a refrigerant pump in the liquid line to allow the system to operate at a lower condensing pressure. An existing DX rooftop package of a commercial building located in a hot and dry climate zone is used ...

Keywords: Energy Saving; Experimental Study; HVAC; Modelling; Liquid Pressure Amplification

Development and First Testing of a Framework for Predictive Energy Control of Underground Stations

A. Giretti, R. Ansuini, A. Carbonari
Pages 506-513

Building Energy Management Systems consist of hardware and software components. The hardware set-up of BEMS is typically made up of a set of computers in charge of building control and sensoractuator networks. The software side of BEMS is usually made up of a number of functional layers that implement standard management functionalities. This paper will present an application of Model ...

Keywords: BEMS, predictive control, real-time control

Predicting Energy Usage Using Historical Data and Linear Models

Majeed Safa, Jeremy Allen, Mahdi Safa
Pages 531-535

This paper presents a method to predict energy usage, based on weather conditions and occupancy, using a multiple linear regression model (MLR) in research office buildings. In this study, linear regression models of four research office sites in different regions of New Zealand were selected to show the capability of simple models to reduce margins of error in energy auditing ...

Keywords: Energy prediction, energy auditing, linear regression model, office buildings, energy saving, optimization

Modelling October 2013 Bushfire Pollution Episode in New South Wales, Australia

Hiep Nguyen Duc, Sean Watt, David Salter, Toan Trieu
Pages 544-548

From mid-October 2013 to the beginning of November 2013, New South Wales (NSW) experienced a significant sustained bushfire spring period in the Blue Mountains, the Central Coast and the Southern Highland causing property damages in those areas, and high pollution (particle and ozone) episodes over the metropolitan areas of Sydney. This paper studied the extent of the air pollution due ...

Keywords: NSW bushfire, WRF meteorological model, particle air pollution, MODIS Aqua/Terra satellites

Measurement Scheme and Automatic Prediction for Ground Vibration Induced by High-Speed Rail on Embankments

Yit-Jin Chen, Yi-Jiun Shen, Chi-Jim Chen
Pages 568-575

Experience shows that ground vibration induced by high-speed trains can reach levels that cause environmental problems, such as human annoyance, possible damage to old and historical buildings, and interruption of sensitive instrumentation and processes. In engineering, understanding the characteristics of the vibration source, path, and influence distance on various influence factors is essential. Thus, a reliable vibration measurement scheme for ...

Keywords: Environmental Vibration, Ground Vibration Measurement, High Speed Rail, Embankment, Ground Vibration Prediction, Support Vector Machine

Prediction of NOx Vehicular Emissions Using On-Board Measurement and Chassis Dynamometer Testing

S. D. Oduro, S. Metia, H. Duc, G. Hong, Q. P. Ha
Pages 584-591

Motor vehicles’ rate models for predicting emissions of oxides of nitrogen (NOX) are insensitive to their modes of operation such as cruise, acceleration, deceleration and idle, because these models are usually based on the average trip speed. This study demonstrates the feasibility of using other variables such as vehicle speed, acceleration, load, power and ambient temperature to predict NOX emissions. ...

Keywords: Nitrogen Oxide, On-Board Emission Measurement System, Chassis Dyanmometer Testing System, Emission

Application of Building Information Modeling in Designing Fire Evacuation – a Case Study

Kun-Chi Wang, Shih-Yu Shih, Wen-Shuo Chan, Wei-Chih Wang, Shih-Hsu Wang, Abdoul- Aziz Gansonre, Jang-Jeng Liu, Ming-Tsung Lee, Yuan-Yuan Cheng, Ming-Feng Yeh
Pages 593-601

In recent years, the construction industry has been actively seeking for possible applications of Building Information Modeling (BIM), including the domain of building disaster-prevention management. BIM enables us to present a facility layout in threedimension (3D) and carry the disaster-prevention objects and information whereas the traditional approach can only be presented in two-dimension. Therefore, it could be possible to improve ...

Keywords: Building information modeling, disasterprevention management; evacuation routes, disaster prevention training

General Information Model and its application for Rock Excavation in Underground Work Sites

Esa Viljamaa, Irina Peltomaa, Annemari Kaaranka
Pages 602-609

In the underground mining and tunnelling rock excavation processes, there is plethora of different machine, tool and information system providers involved and practically no general information model covering the complete process. The competition in the field is getting more intense and all the actors should intensify their operations. The information management and integration of different information systems’ data is among ...

Keywords: Information Model, Information Management, Data Integration, IFC, IREDES, Rock Excavation

Performance and Impacts of Web-Based Project Management Systems in Construction Projects

H. Doloi
Pages 610-615

While web-based project management systems are widely being implemented in most construction projects, there is a clear lack of understanding among the industry professional in relation to any quantified benefit and achieving success in projects. The aim of this research is to unfold the understanding of the key factors affecting the implementation decisions and aided benefits of such webbased systems ...

Keywords: IT application, web-based systems, project management, project performance, structural model

Integration of Augmented Reality and Indoor Positioning Technologies for On-Site Viewing of BIM Information

Hung-Ming Chen, Ting-Yu Chang
Pages 616-623

This study applied integrated indoor positioning and augmented reality (AR) technologies to develop an on-site viewing model of BIM. In the proposed model, BIM information is displayed and superimposed on real building elements in 3D component models or surrounding texts using AR technology. The building must have a wireless network environment inside, and each room uses the same set of ...

Keywords: IT Application, Augmented Reality, Indoor positioning, BIM

Towards 3-D Shape Restructuring for Rapid Prototyping of Joining Interface System

S.-K. Lee, C. Georgoulas, T. Bock
Pages 624-631

Ready-made building components and joining systems are generally unfit for existing building structures with irregular shapes. Therefore, unplanned and immediate manual work is dominantly practiced as measuring and manufacturing of the customized joining system is not supported. In this respect, by obtaining 3-D shapes of the existing building components and using them for the customization of the joining parts, construction ...

Keywords: IT Applications, 3-D Shape Registration, Joining System, Rapid Prototyping

Reactive Adaptation of Construction Schedules by Applying Simulation-Based Optimization

Kamil Szczesny, Markus König
Pages 632-639

This paper deals with the adaption of construction schedule due to real-time data. This real-time data needs to be evaluated regarding the effects on the schedule. If significant delays or other problems are identified, the schedule should be adapted. That means that under the existing condition a new schedule needs to be generated. Thereby, different constraints of the target schedule ...

Keywords: Reactive Construction Scheduling, Schedule Adaptation, Simulation-based Optimization

A Novel Inference Model for Post-Earthquake Bridge Safety and Failure Probabilities Prediction - a Case Study in Taiwan

Min-Yuan Cheng, Yu-Wei Wu, Yung-Fang Chiu, Yu-Chen Ou, Chien-Kuo Chiu
Pages 661-666

Bridges are a vital and significant component of Taiwan’s transportation infrastructure. Therefore, regular and comprehensive inspections of existing bridges are necessary to prevent damage and traffic disruption and reduce earthquake-related damage and casualties. However, due to the large number of bridges in Taiwan, the time and budget required to perform traditional structural analyses (preliminary assessment, detailed analysis) on every bridge ...

Keywords: Seismic Assessment, Deterioration of Materials, Seismic Capacity, Evolutionary Support Vector, Machine Inference Model

BIM Based Schedule Control for Precast Concrete Supply Chain

J. Nissilä, R. Heikkilä, I. Romo, M. Malaska, T. Aho
Pages 667-671

Development of the schedule control of precast concrete supply chain has been studied. Main idea was to use BIM model created by structural engineer as a user-interface for schedule control, for saving different status information of the real-time schedule situation of the propagation of structural design, element manufacture, delivery and site erection directly to the BIM model by using a ...

Keywords: BIM, supply chain, schedule control, precast concrete

Information Modelling Based Tunnel Design and Construction Process

R. Heikkilä, A. Kaaranka, T. Makkonen
Pages 672-675

The present development situation of 3D and BIM based process model for tunnel design and construction methods has been studied. Tunnel design is generally done using traditional 2D drawing based working methods. As a basement for the research, the new specifications developed in Finland for national BIM requirements for infra sector were used. However, underground tunnels are not yet considered ...

Keywords: 3D, BIM, tunnel design

Rapid 3D Modelling of an Existing Building using Photos

Yang Liu, Julian Kang
Pages 676-679

A three-dimensional (3D) laser scanner is one of the most well known devices when it comes to creating a 3D model of existing bridges and buildings. Most 3D scanners can pick up point clouds very accurately, which can be used to create an accurate 3D model of existing objects. One may speculate that a 3D laser scanner can also be ...

Keywords: 3D CAD Model, Photogrammetry

Mining Rules for Satellite Imagery Using Evolutionary Classification Tree

L.C. Lien, Y.N. Liu, M.Y. Cheng, I-C. Yeh
Pages 689-696

Classification Tree (CT) can establish explicit classification rules of Satellite Imagery (SI). However, the accuracy of explicit classification rules are poor. Back-Propagation Networks (BPN) and Support Vector Machine (SVM) both can establish a highly accurate model to predict the classification of SI but cannot generate the explicit rules. This study proposes a novel mining rule method named Evolutionary Classification Tree ...

Keywords: Satellite Imagery (SI), Back Propagation Networks (BPN), Support Vector Machine (SVM), Evolutionary Classification Tree (ECT), Particle Bee Algorithm (PBA)

Roadwork Site 3D Virtual Visualization Using Open Source Game Engine and Open Information Transfer

T. Makkonen, R. Heikkilä, A. Kaaranka, K. Nevala
Pages 697-701

Machine control systems generate huge amounts of data to be used to build smarter. This information is still not widely used as there are no general methods to access this massive spread of data as these are strictly closed systems. Main tools in our study were an open source 3D game and simulation engine for visual 3D presentation (Panda3D), a ...

Keywords: open data transfer, 3D visualizations, 4D visualization, machine control system

Visualization of As-Built Progress Data Using ConstructionSite Photographs: Two Case Studies

H. Jadidi, M. Ravanshadnia, M.H. Alipour
Pages 706-713

The collection of as-built data for construction progress monitoring remains challenging. This paper develops two case studies on image-based modeling, in which point cloud models are created based on the photo collection of the construction site. The first case considers 399 unordered construction images previously taken for purposes other than progress monitoring, whereas the second case considers 118 photos that ...

Keywords: Construction site photographs, Image-based modelling, Visualization, Progress monitoring, Decision making, Information technology, Huge construction sites

A Computational Framework for Estimating the Carbon Footprint of Construction

Z.S. Moussavi Nadoushani, A. Akbarnezhad
Pages 714-721

Estimation of the carbon emissions in the construction phase of the building life cycle requires acquiring and analysing a great deal of project specific data including the amount of the works performed by different equipment and the unit emissions of various machinery at different work conditions. Such information are very project specific and vary from one stage of the construction ...

Keywords: CO2 emission, Construction stage, Automation, BIM, Quantity takeoffs

A Mixed-Integer Nonlinear Programming Model for Minimising Construction Site Noise Levels through Site Layout Optimisation

A.W.A. Hammad, D. Rey, A. Akbarnezhad
Pages 722-729

Activities undertaken on a construction site are often accompanied with high levels of noise. Addressing the issue of noise pollution in construction is gaining significance with the growing awareness about the social and environmental components of sustainable construction and the increasing numbers of projects being undertaken in congested urban areas. The documented methods for reducing noise pollution in construction include ...

Keywords: construction site layout, mixed integer nonlinear programming, MINLP, optimisation, construction noise estimation, sustainability

Bulldozer as a Mechatronics System with the Intelligent Control

Alexej Bulgakov, Thomas Bock, Georgy Tokmakov
Pages 768-777

Background. Improvement of quality, decrease of terms and cost of construction are inseparably linked with problems of effective use of bulldozer equipment. Purpose. The most important problem of control tractions modes of the bulldozer is the fullest use of traction opportunities of the machine at the expense of management of work tool. Automatic maintenance of the maximum traction power or ...

Keywords: Robotics and mechatronics, Automation and control, Bulldozer, Neural network technologies

Generation the 3D Model Building by Using the Quadcopter

T.T. Bertram, T.T. Bock, A.G. Bulgakov, A.A. Evgenov
Pages 778-783

Last decade saw a considerable growth in number of methods to create 3D models for buildings. Some companies have developed their own online maps systems. One of the most well-known of them is Google Maps. The maps are infrequently updated because the process is costly and labor-consuming, and, as a rule, the update is not necessary. The process of 3D ...

Keywords: 3D-model, 3D-reconstruction, Building, Aerial photogrammetry, Quadcopter, UAV, Texturing

Controlling Slab Flatness Automatically Using Laser Scanning and BIM

Frédéric Bosché, Emeline Guenet
Pages 813-820

Developments of Terrestrial Laser Scanning (TLS) and Building Information Modeling (BIM) offer great opportunities to achieve a leap forward in the efficiency and completeness of dimensional control operations. This paper presents an approach that demonstrates the value of this integration for slab flatness control. The approach first employs the Scan-vs-BIM principle of [5] to segment TLS point clouds and match ...

Keywords: laser scanning, BIM, quality control, surface, slab, flatness, regularity

Extended Range Guidance System for the Teleoperation of Microtunnelling Machines

A. Jardón, S. Martínez, J. G. Victores, C. Balaguer
Pages 837-846

Microtunneling is a trenchless construction method that is highly adequate to install pipelines beneath roads, rail roads, dams, harbours and environmentally sensitive areas. Microtunneling could be understood as a remotely-controlled, guidance operation of a MicroTunneling Boring Machine (MTBM), where references are provided by a human operator from the surface. A review of current technologies and main working principles of traditional ...

Keywords: Microtunneling machine, guidance systems, graphical interface, teleoperation

A Preliminary Investigation into Automated Identification ofStructural Steel Without A Priori Knowledge

J. Yeung, M. Nahangi, S. Walbridge, C.T. Haas
Pages 847-853

One of the most prohibiting factors when attempting to reuse structural steel members or systems of members is the time and labour required to accurately determine dimensions. Current practices dictate that all required measurements are recorded by hand using tape measures and calipers which adds a significant cost to reused steel. To mitigate this cost, a semi-automated method for identifying ...

Keywords: Steel Reuse, Object Identification, 3D Imaging, Automation

Implementation of As-Built Information Modelling UsingMobile and Terrestrial Lidar Systems

S. M.E. Sepasgozar, S. Lim, S. Shirowzhan, Y.M. Kim
Pages 876-883

Recently it is observed that there is an increasing trend of using lidar point clouds in construction, since lidar is able to provide highly accurate 3- dimensional representations of objects. The flip side of a lidar point cloud is its massive size and therefore prolonged time for data processing. Our research aims to develop an efficient framework for as-built modelling ...

Keywords: As-built, Scanner, Mobile lidar, Terrestrial, BIM, Construction

Human Detection Using Gradient Maps and Golden Ratio

Feng Su, Gu Fang
Pages 890-896

Human detection is an important topic that can be used for many applications, it is mainly found in areas that required surveillance such as airports, casinos, factories, construction and mining sites. In this paper, a novel human detection method is introduced to extract the human figure from an input image without prior information or training. This method firstly uses a ...

Keywords: Human Detection, Head and Shoulder Detection, Human Body Estimation, Human Figure Extraction

Autocorrelation Statistics-Based Algorithms for Automatic Ground and Non-Ground Classification of Lidar Data

Sara Shirowzhan, Samsung Lim
Pages 897-902

Classification of lidar data to ground and nonground points is important for accurate topography mapping and reliable estimation of slope, volume and buildings’ geometry over urban areas. Manual or semi-automatic classification provides relatively good results, however, automatic classification in complex areas with diverse object sizes is still challenging. This research aims to propose two novel algorithms based on Getis-Ord Gi* ...

Keywords: Automatic classification, Bare earth extraction, Spatial association, DSM, DEM, NDSM

SOH Estimation of Lithium-ion Batteries for Electric Vehicles

D. Qing, J. Huang, W. Sun
Pages 925-928

Accurate estimates of the state-of-health (SOH) for rechargeable batteries provide a significant value to the management of any operation involving electrical systems. This is especially important for transportation systems, where unexpected battery performance may lead to catastrophic failures. This paper performs experiments aiming at analyzing Lithium-ion battery performances with aging due to different temperatures and charging-discharging rates, and the optimum ...

Keywords: State-of-health, Capacity attenuation, Charging-discharging rate, Electric Vehicle

Knowledge-Based Building Information Modeling (K-BIM) for Facilities Management

V. Paul C. Charlesraj
Pages 936-941

Knowledge Management (KM) is a business management technique that promises improved competitive advantage among other benefits for an organization. The application of KM in construction is fairly researched and reported. Although Building Information Modeling (BIM) is gaining wide acceptance among Architects and Project Managers for efficient and effective design and construction management, the adoption of BIM in operations during post-construction ...

Keywords: IT Applications, Knowledge Management, Building Information Modeling, Facilities Management, Knowledge-based BIM, Ontology

Development of the BIM Based Process for Dredging Works

R. Heikkilä, T. Leinonen, H. Paukkeri, H. Virtanen
Pages 948-952

Development of building information modelling for dredging process has been studied. In dredging area different 3-D guidance and control systems have been used already over 15 years. However, the information transfer process from early initial data acquirement phase through design and further to construction phase has suffered from information delivery gaps, undetermined modelling and information delivery methods. In the paper, ...

Keywords: BIM, Automation, Dredging

Decision Support Model with Life Cycle Assessment for Building in Design Phase

Chia-Chen Wei, Chia-Chi Hsiang, Tzu-Chi Shan
Pages 966-971

The building materials and structural form chosen in design phase not only affect the costs for construction, but also decide the costs for maintenance. However, the large amounts of maintenance costs are not easy to estimate. This article proposes a decision support model adopting life cycle assessment to assist the project owner and architect engineering for selecting an appropriate building ...

Keywords: Life Cycle Assessment, Building Information Modelling, Decision Support System

A Study on Vertical Zoning Algorithm of Real-Time Construction Lift Control for High-Rise Building

Joonghwan Shin, Soonwook Kwon, Donghyun Kim
Pages 972-977

For the past few years, numerous super high-rise buildings have been built around the world. Among them, movement management of materials and labors is closely related to productivity of super-high rise construction. The objective of this study is to develop an algorithm which can increase productivity of lift operation on twin-cage and multicage temporary lift for construction site. The algorithm ...

Keywords: Construction Hoist, Vertical Zoning, ELIS(Embedded Lift Information system)

Measurement of Theoretical Relationships in Building Information Modelling Adoption in Malaysia

Wallace Imoudu Enegbuma, Uche Godwin Aliagha, Kherun Nita Ali
Pages 1000-1008

Implementing Information technology (IT) in a system presents varied responses. Prior research models in IT adoption examine dimensions not limited to attitude, subjective norm, ease of use, usefulness, innovation including several moderating variables. Despite consistent blueprints on leverage on IT in the Malaysian construction industry master plan, the exponential growth rate of building information modeling (BIM) experiences various challenges in ...

Keywords: Building Information Modelling (BIM), Construction Industry, Information Technology, Malaysia, Partial Least Square (PLS)

2013 Proceedings of the 30th ISARC, Montréal, Canada 2013

Correlation-Based Model for Evaluating Ground Penetrating Radar (GPR) Data of Concrete Bridge Decks

K. Dinh, T. Zayed
Pages 44-53

The Ground Penetrating Radar (GPR) has been studied for a long time as a non-destructive evaluation (NDE) technology for inspection of concrete structures. Currently, the most widely used technique for interpreting GPR data of concrete bridge decks is the one that based on the amplitudes measured at various interfaces such as asphalt-concrete, top rebar, or slab bottom. The assumption behind ...

Keywords: Ground Penetrating Radar (GPR), Non-destructive Evaluation (NDE), Concrete Structures, Concrete Bridge Decks, and Bridge Inspection.

Development of a New Energy-Efficient Hybrid Solar-Assisted Air Conditioning System

V. Vakiloroaya, R. Ismail, Q.P. Ha
Pages 54-65

The paper aims at developing a hybrid solar-assisted air conditioner system for performance enhancement and energy efficiency improvement. To increase sub-cooling of the refrigerant at partial loads, we propose a new discharge bypass line together with an inline solenoid valve, installed after the compressor to regulate the mass flow rate of the refrigerant vapour passing through a hot water storage ...

Keywords: Energy Saving, Linear Quadratic Regulator, Solar-Assisted Air-Conditioner, Sub-cooling

Robotic Upgrading of Postwar Social Dwelling Envelopes

K. Iturralde, Thomas Bock
Pages 84-91

The article discusses the possibility of automation in refurbishment processes of social dwelling built from 1950 to 1970. These massively produced buildings were mostly designed prior to the law enforcement regarding thermal insulation or accessibility. Nowadays, many of these buildings are being retrofitted. The article focuses on the works in the external envelope. The task of renewing the whole social ...

Keywords: Renewal, façade, hanging robot, double facade

A Proposed “Model for Adoption" High Technology Products (Robots) for Indian Construction Industry

S. Jain, M. Phadtare
Pages 110-118

Construction industry is considered as labour intensive, having shortage of skilled labour, unsafe with large number of industrial accidents. Construction industry requires high technology automation products (Robots) for improving productivity, safety, quality etc. Robots are developed by various countries in different areas like demolition, earthwork, bridge, tunnels, road work, underwater works, trenches and piping, maintenance etc. however they are still ...

Keywords: High technology products, robots, construction industry, adoption, India, SAM

Improving Construction Environmental Metrics through Integration of Discrete Event Simulation and Life Cycle Analysis

H. Golzarpoor, V. González, M. Poshdar
Pages 130-139

Life Cycle Analysis (LCA) is a methodology for evaluating the environmental impacts associated with a product during its life cycle. LCA is identified as the most reliable method for verifying environmental impacts; however, current LCA-based approaches have certain limitations for environmental analysis of construction products. Integration of the LCA methodology with Discrete Event Simulation (DES) provides a sound framework for ...

Keywords: Discrete Event Simulation, Life Cycle Analysis, Environmental Analysis, Construction Management

Development of Mobile Inspection and Diagnostic System for Electric Power Conduit

Sang-Kyun Woo, Kyung-Jin Kim, Ki-Jung Kim, Byong-Don Youn
Pages 160-167

The electric power conduit (EPC) in Korea has been constructed since 1978. Facing the challenge of safety and sustainability of the EPC, it is urgent to develop an inspection strategy and maintenance system for the structure based on the concept of life-cycle management. This paper introduces the newly developed mobile inspection and diagnostic system of the EPC. The novel aspect ...

Keywords: Mobile, Safety inspection, Diagnosis, BIM, USN, RFID, LBS

A Cloud-Based Framework for Online Management of Massive BIMs Using Hadoop and WEBGL

Hung-Ming Chen, Chuan-Chien Hou, Tsung-Hsi Lin
Pages 179-186

This paper presents a Cloud-based system framework for providing a web-based building information model (BIM) service. Cloud computing technologies were used to develop a BIM data center, which can handle the big data of massive BIMs using multiple servers in a distributed manner. In addition, the system allows multiple users to access the BIM data center online to submit and ...

Keywords: Building Information Model, Cloud Computing, WebGL, Hadoop, IFC

Landslides Damage Risk Evaluation Model for Mountain Roads - a Case Study in Taiwan

Min-Yuan Cheng, Yu-Wei Wu, Jhao-Bo Hsu
Pages 219-228

Landslides not only cause interruption of road traffic but also cause damage to passing by vehicles and injure people in Taiwan. Due to the budget limitation of government, the overall assessments and maintenance of all road slops cannot be fulfilled. Priority of road for maintenance is a crucial task for road maintenance department to identify. The purposes of this research ...

Keywords: Slope, Mountain-Roads, Probability of Landslides, Risk Analysis, Damage Evaluation

Bayesian Classifier with K-Nearest Neighbor Density Estimation for Slope Collapse Prediction

Min-Yuan Cheng, Nhat-Duc Hoang, Nai-Wen Chang
Pages 267-274

Heavy rainfall and typhoon oftentimes cause the collapse of hillslopes across mountain roads. Disastrous consequences of slope collapses necessitate the approach for predicting their occurrences. In practice, slope collapse prediction can be formulated as a deterministic classification problem with two class labels, namely “collapse” and “non-collapse”. Nevertheless, due to the criticality and the uncertainty of the problem, evaluating the collapse ...

Keywords: Slope Collapse Prediction; Bayesian Inference; K-Nearest Neighbor; Probabilistic Classification

Simulation Applications in Construction Site Layout Planning

S. Razavialavi, S. AbouRizk
Pages 275-284

In the planning phase of every construction project, layout of temporary facilities is a crucial task; site layout can affect safety, travel cost and time, construction productivity, and space utilization. However, site layout planning can be a complicated problem, due to the interdependency of influencing factors. Although interaction among activities is one of the major drivers of site layout planning, ...

Keywords: Site layout planning, Simulation, Layout optimization, Construction preplanning

Conflict Impact Assessment between Objects in a BIM System

Yi-Chun Lin, Shin-Hsun Chou, I-Chen Wu1
Pages 337-344

Mechanical/Electrical/Piping (MEP) systems, due to their complexity and diversity, are the most intricate part of building construction. This being the case, Combined Services Drawings (CSD) and Structure, Electric and Mechanic(SEM) drawings can ensure that all coordination issues are resolved prior to construction. Construction companies attempt to apply Building Information Modeling (BIM) to manage and integrate engineering information and solutions efficiently ...

Keywords: BIM, CSD, SEM, Conflict Detection, Impact Assessment

A Study of Image-Based Element Condition Index for Bridge Inspection

R. S. Adhikari, O. Moselhi, A. Bagchi
Pages 345-356

This paper presents an innovative computer vision method for condition assessments of bridges with multiple defects in bridge elements using digital images. This work utilizes 3D model of existing bridges and overlays digital images on 3D model to simulate on-site visual inspection. The analysis of element condition index (ECI) of bridges requires information about the severity and extent of defects ...

Keywords: Digital Images, Visual Inspection, Condition Index, Distress types, 3D visualization

A Simplified Online Solution for Simulation-Based Optimization of Earthmoving Operations

Yasser Mohamed, Mostafa Ali
Pages 368-376

Daily field management of earthmoving operations requires quick and regular decisions for allocating available equipment to different jobs on a project. A general foreman’s day starts with matching several activities with a suitable set of available equipment to achieve the highest productivity and lowest unit cost. Usually, this decision-making process needs to be quick, and depends to a great extent ...

Keywords: Earthmoving, Resource Allocation, Simulation, Optimization

A Framework for Crane Selection in Large-Scale Industrial Construction Projects

SangHyeok Han, Shafiul Hasan, Zhen Lei, Mohammed Sadiq Altaf, Mohamed Al-Hussein
Pages 387-394

Selecting the best possible cranes and identifying spatial conflict-free locations on sites can result in productivity and safety improvements for large-scale industrial construction projects. In the current practice, experienced lift engineers select cranes based on the heaviest lift and/or the largest lifting radius of the identified crane. This practice is relatively time-consuming, and optimization of the crane’s use and location ...

Keywords: Optimum crane selection, Crane selection matrix, Visualization, Heavy structure

Development and Application of a Product Model for Shield Tunnels

Nobuyoshi Yabuki, Takashi Aruga, Hiroshi Furuya
Pages 435-447

Building Information Modeling is a prevailing methodology in the building industry and half (by length) of the world's shield tunnels are in Japan. Accordingly, for shield tunnels from 2005 to 2007, we developed a product model called IFC-ShieldTunnel, which is based on Industry Foundation Classes (IFC), in order to meet the future demand for such a product model. IFC-ShieldTunnel was ...

Keywords: Tunnel, Product model, Interoperability, IFC, Schema

Multi-Criteria Optimizing Method of Earthwork Machine Group Selection Implemented into Soil Processes

J.Gašparík, L. Paulovicová, L. Prokopcák, M. Gašparík
Pages 448-458

The optimal selection of machine or machine group for building processes is very important role of building planner during the process of building planning. During this process building planner have to analyze several factors influencing the final effective decision concerning this problem. There are several factors and criteria for effective selection of building machines. In our contribution there are analyzed: ...

Keywords: Optimization, multi-criteria, earthwork machine

Dynamic Planning of Construction Activities Using Hybrid Simulation

H. Alzraiee, O. Moselhi, T. Zayed
Pages 459-467

Traditional planning methods such as CPM and PERT have been useful tools to manage construction projects. However, the underlying model of these traditional methods often seems to fail to represent real projects as they tend to assume no interrelationship between project components. In reality, project components have complex dynamic feedback process that requires modeling of inherent uncertainty in the execution ...

Keywords: Dynamic Planning, Discrete Event Simulation, System Dynamic, Construction

Real-Time Simulation of Mining and Earthmoving Operations: A Level Set-Based Model for Tool-Induced Terrain Deformations

D. Holz, A. Azimi, M. Teichmann, S. Mercier
Pages 468-477

In this work we present a novel level set-based model for the real-time simulation of soil deformations. A level set defined by a signed distance function and sampled in a regular 3D grid represents and tracks the soil volume under deformation. Moving away from classical 2.5D heightfield representations of soil to a full 3D volume representation allows for improved tracking ...

Keywords: Physics-based simulation, Computer graphics, Soil mechanics, Deformable surfaces, Virtual reality

Understanding the Effect of Interdependency and Vulnerability on the Performance of Civil Infrastructure

A. Atef, O. Moselhi
Pages 497-505

Vulnerability is a measure of the extent to which a community, structure, services or geographic area is likely to be damaged or disrupted by the impact of particular hazard. Current asset management practices focuses on studying factors that affect performance of isolated infrastructure networks and model a set of actions to control the expected performance of these networks. This approach ...

Keywords: Vulnerability assessment, Interdependency assessment, ArcGIS, Fuzzy neural networks

Novel Techniques for the Detection of ON and OFF States of Appliances for Power Estimation in Non-Intrusive Load Monitoring

Suman Giri, Po-Hsiang Lai, Mario Bergés
Pages 522-530

Non-Intrusive Load Monitoring (NILM) is a method of extracting appliance-level power consumption information from aggregate circuit-level data with the goal of giving users feedback regarding their energy consumption so they can take control of their consumption habits. In this paper, we present a novel algorithm for classification of on and off states of appliances. We compare the performance of our ...

Keywords: Non-Intrusive Load Monitoring, Energy Disaggregation, Energy Efficiency, Machine Learning, Power Estimation, Normalization.

Framework for Estimating Cost of Infrastructure Adaptation to Climate Change

H. Lee, T. Park, H. Jeong, H. Kim
Pages 548-554

Recently, the effects of global climate changes have become top concerns for governments’ decision making regarding infrastructure investments. Extreme weather events that exceed the capacity of existing systems have considerably increased in frequency, and the potential effects of changing trends in temperature and rainfall on infrastructure are difficult to ignore. It is essential for governments to estimate the costs and ...

Keywords: Adaptation, climate change, infrastructure, future climate scenario

Automatic Object Recognition and Registration of Dynamic Construction Equipment from a 3D Point Cloud

Mengmeng Gai, Yong Cho
Pages 564-571

This paper introduces a model-based automatic object recognition and registration framework to assist heavy equipment operators in rapidly perceiving 3D working environment at dynamic construction sites. A video camera and a laser scanner were utilized in this study to rapidly recognize and register dynamic target objects in a 3D space by dynamically separating target object’s point cloud data from a ...

Keywords: Equipment, 3D, point cloud, object recognition, construction safety

Fuzzy Clustering-Based Model for Productivity Forcasting

Farid Mirahadi, Tarek Zayed
Pages 596-607

Forecasting productivity of construction operations is a difficult but crucial task in planning construction projects. Over the past decades, many models have been developed to forecast productivity for different construction operations. Models made up of several functional relations and controlled by a specific number of control rules are more in line with human reasoning and logic. Neural-Network-Driven Fuzzy Reasoning (NNDFR) ...

Keywords: Productivity forecasting, Fuzzy reasoning, Fuzzy clustering, Neural network, Clustering-based model, Genetic algorithm, Multi-dimensional membership function

Indoor Localization of RFID-Equipped Movable Assets Using Mobile Reader Based on Reference Tags Clustering

A. Motamedi, M. M. Soltani, A. Hammad
Pages 626-634

Indoor localization has gained importance as it has the potential to improve various processes related to the lifecycle management of facilities and to deliver personalized and location-based services. Radio Frequency Identification (RFID) based systems, on the other hand, have been widely used in different applications in construction and maintenance. This paper investigates the usage of RFID technology for indoor localization ...

Keywords: Asset localization, RFID, Location-based services, Pattern matching, Clustering

Estimation and Planning Tool for Industrial Construction Scaffolding

C. Kumar, S. M. AbouRizk, Y. Mohamed, H. Taghaddos, U. Hermann
Pages 634-642

Scaffolds are temporary structures built to facilitate construction activities on site. A considerable amount of resources are allocated to scaffolding on industrial projects. Variability in geometrical features and space accessibility of structures on industrial projects, in addition to involvement of different trades that share the use of scaffolds, requires an extensive understanding of scaffolding requirements. Hence, it’s important to plan ...

Keywords: Scaffolding, Industrial Construction, Estimation

A Model for Implementing & Continuously Improving the Automated Change Management Process for Construction Mega Projects

Sh. Karimidorabati, C. T. Haas, J. Gray
Pages 643-652

In the construction industry, project changes constitute a major cause of delay, disruption, cost increases, poor quality and unsatisfying performance. They are also known as a main factor of litigation between the owners and constructors. Construction projects are essentially process-based, and with the critical role of Information Technology (IT) in this industry, projects, especially mega projects, are being managed remotely. ...

Keywords: Change Management, Change Requests, Simulation, Workflow

Automatic Generation of COBIE Data from Revit

J. Lee, W. Jeong, V. Faghihi, J. Kang
Pages 653-660

As the usage of BIM increased in the construction industry, some construction owners started exploring the use of BIM for maintaining their facilities. Construction Operations Building Information Exchange (COBIE), a spreadsheet data format suggested in 2007 to manipulate building information, is considered as one of the solutions that would facilitate the process of transferring information from BIM to applications for ...

Keywords: BIM, COBIE, automatic generation, Revit, Facilities Management

Integration of Uncertain Real-Time Logistics Data for Reactive Scheduling Using Fuzzy Set Theory

K. Szczesny, M. König, L. Laußat, M. Helmus
Pages 691-698

This paper considers the integration of uncertain real-time logistics data for reactive construction scheduling. In order to manage a construction project efficiently, an accurate schedule representing the current project progress is inevitable. The quality and up-to-dateness of such a schedule depends on the availability of real-time data. Typically, real-time logistics data contain information about the availability of material, equipment and ...

Keywords: Real-time logistics data, reactive construction scheduling, uncertainty modeling, fuzzy set theory, discrete event simulation

Real-Time Simulation of Earthmoving Projects Using Automated Machine Guidance

F. Vahdatikhaki, A. Hammad, S. Setayeshgar
Pages 718-730

Simulation techniques have offered significant boosts toward a cost-and-time-optimized planning of construction projects by enabling project managers to effectively comprehend the behavior of projects. Using historic data from projects of like nature, simulation considers uncertainties involved in a project through accommodating the stochastic modeling parameters. However, the heavy reliance on the statistical data and not taking into account the context-specific ...

Keywords: Real-time simulation, Automated Machine Control/Guidance, 4D modeling

Real-Time Safety Risk Analysis of Construction Projects Using BIM and RTLS

S. Setayeshgar, A. Hammad, F. Vahdatikhaki, C. Zhang
Pages 731-741

The identification of potential accidents on construction sites has been a major concern in the construction industry and it needs a proactive safety plan to reduce the risk of accidents. There are no efficient methods for checking if safety measures are taken properly on construction sites. Consequently, workers on site are not given enough awareness about dangerous areas. In addition, ...

Keywords: Safety, Simulation, Real time, BIM, RTLS

Improving Indoor Security Surveillance by Fusing Data from BIM, UWB and Video

M. Rafiee, H. Siddiqui, A. Hammad,
Pages 742-752

Indoor physical security, as a perpetual and multi-layered phenomenon, is a timeintensive and labor-consuming task. Various technologies have been leveraged to develop automatic access control, intrusion detection, or video monitoring systems. Video surveillance has been significantly enhanced by the advent of Pan-Tilt-Zoom (PTZ) cameras and advanced video processing, which together enable effective monitoring and recording. The development of ubiquitous object ...

Keywords: Indoors Security, Data Fusion, BIM, UWB, PTZ Security Camera

Autonomous Robotic Dozing for Rapid Material Removal

Gary M. Bone, Scott G. Olsen, Graham E. Ashby
Pages 753-762

The autonomous control of vehicles interacting forcibly with their environment, such as dozers and tractors, is an unsolved and challenging problem. Forces and motions are inherently coupled between the tool and the means of vehicle propulsion. Furthermore, they are often operated within uncertain and unstructured environments, such as those encountered in underground mining. There is a growing industrial interest in ...

Keywords: Autonomous dozer, mobile robots, dozing, hybrid dynamic systems, model-based control, optimal control, mining

A Visual Sensing Approach to Estimate Material Hauling Cycles in Heavy Construction and Surface Mining Jobsites

E. Rezazadeh Azar, B.Y. McCabe
Pages 774-782

Dump trucks are the main mean for hauling earth material within and outside of the construction and open-pit mining jobsites. The real-time monitoring of the material transportation trips is beneficial for proactive equipment management, volume estimation, and productivity measurement. The traditional manual observation is tedious, non-real-time, and expensive; therefore remote sensing technologies, namely GPS and RFID, have been employed for ...

Keywords: Computer vision, automated productivity measurement, hauling trip, dump truck, earth material.

Impact of Building Information Modeling on Just-in-Time Material Delivery

I.A. Ocheoha, O. Moselhi
Pages 793-801

The purpose of this research is to evaluate the impact of Building Information Modeling (BIM) on Just-In-Time (JIT) material delivery, with a focus on how the use of BIM can help improve efficient implementation of JIT and reduce the cost of material management. Previous research and a number of case studies have addressed the positive impact of BIM on construction ...

Keywords: Building Information Modeling (BIM), Just-In-Time (JIT), Material Management, Vendor selection

Validation of Roling and Steer Resistance of Articulated Tracked Robot

M.J. Lopatka, T. Muszynski
Pages 802-811

This paper presents the results of field test and theoretical analysis driving resistance articulated 4x4 tracked robot test-bed. Tests were made on four different grounds. Designated elastomeric tracks resistance coefficients are much higher than for steel tracks. This information was important for the proper estimation of energy consumption in the process of driving.

Keywords: (UGV) Unmanned Ground Vehicles, tracked robot, articulated steering, driving resistance

Real-Time As-Built Tunnel Product Modeling and Visualization by Tracking Tunnel Boring Machines

X. Wu, M. Lu, S. Mao, X. Shen
Pages 857-865

Tunnel Boring Machines (TBMs) are widely used for tunneling in urban areas because of their high advance rate, precise as-built profile and minimal impact to buildings and traffic on the ground. For a tunnel built by a TBM, there are strict requirements on alignment control and safety. To meet these requirements, it is important to monitor the position of the ...

Keywords: As-built modeling, Visualization, Tunnelling, Construction

Knowledge-Based Approach for 3D Reconstruction of As-Built Industrial Plant Models from Laser-Scan Data

H. Son, C. Kim, C. Kim
Pages 885-893

The three-dimensional (3D) reconstruction of as-built industrial plant models plays an important role in revamping planning, maintenance planning, and preparation for dismantling during the lifecycle of industrial plants. Recently, the 3D reconstruction of existing industrial plants was conducted using laserscan data to make surveying processes more efficient. However, the current 3D reconstruction process from laser-scan data is still limited due ...

Keywords: As-built 3D model, Laser-scan data, Ping and instrumentation diagram, Plant database, Plant information model

Pervasive Sensor Network for Real Time Environmental Monitoring in Construction Sites

A. Carbonari, B. Naticchia, M. Vaccarini, G. Novembri
Pages 914-921

In order to gain competitiveness and compete at a global level, construction companies should improve their efficiency. The problem is even more relevant in the construction field, whose work processes find it hard to evolve towards new automated methods and techniques in the management field. For that reason, this paper suggests how construction companies could apply new technologies to implement ...

Keywords: Automation and Robotics, remote sensing, construction sites, environmental monitoring

Preliminary Implementation of a Predictive Control for Ventilation Systems in Metro Stations

M. Vaccarini, A. Carbonari, A. Giretti
Pages 922-929

In this paper a possible methodology to supplement a predictive control approach is reported. The benefits deriving from the application of a predictive control on complex buildings lay on its capability of adapting in advance to the conditioning needs of indoor environments. In fact, the mere reactive control is usually affected by response delays, mainly determined by latency intrinsic in ...

Keywords: Energy efficiency, predictive control, building systems, metro stations

A Conceptual Approach to Discovering Knowledge from Construction Workflows

A. J. Antony Chettupuzha, Carl T. Haas, Joel Gray
Pages 972-978

Electronic Product and Process Management [EPPM] systems provide the capability to establish and map information flow between different parties in a construction project as well as model project processes. Much of the information relating to processes and their structure, the actors that operate them, and the data associated with each instance of a process is encapsulated within workflows. The wealth ...

Keywords: Construction workflows, knowledge discovery, suitability measures

Predicting HVAC Energy Consumption in Commercial Buildings Using Multiagent Systems

Nan Li, Jun-young Kwak, Burcin Becerik-Gerber, Milind Tambe
Pages 987-994

Energy consumption in commercial buildings has been increasing rapidly in the past decade. The knowledge of future energy consumption can bring significant value to commercial building energy management. For example, prediction of energy consumption decomposition helps analyze the energy consumption patterns and efficiencies as well as waste, and identify the prime targets for energy conservation. Moreover, prediction of temporal energy ...

Keywords: Heating, ventilation, and air conditioning (HVAC), Energy consumption prediction, Commercial building, Multiagent systems (MAS)

Analyzing Building Information Using Graph Theory

S. Isaac, F. Sadeghpour, R. Navon
Pages 1013-1020

The networks of interdependencies between elements in building projects, referred to as the project topology, are often complex and difficult for project teams to comprehend. It is hypothesized that a graphbased model of the project topology can be based on existing data in Building Information Models (BIM), facilitating the application of graph-theoretic algorithms to analyze this topology. The objective of ...

Keywords: Design Management, BIM, Graph Theory

Integration of PLM Solutions and BIM Systems for the AEC Industry

S. Aram, C. Eastman
Pages 1046-1055

Product Lifecycle Management (PLM) solutions have been serving as the basis for collaborative product definition, manufacturing, and service management in many industries. They capture and provide access to product and process information and preserve integrity of information throughout the lifecycle of a product. Efficient growth in the role of Building Information Modeling (BIM) can benefit vastly from unifying solutions to ...

Keywords: PLM, BIM, PDM, AEC industry

Concrete Reinforcement Modeling for Efficient Information Sharing

S. Aram, C. Eastman, M. Venugopal, R. Sacks, M. Belsky
Pages 1056-1064

Concrete reinforcing requires coordination among many roles: structural engineer, estimator, detailer, fabricator, installer and others. The methods used to define and represent concrete reinforcement elements and assemblies in building information models is crucial in determining the efficiency of sharing data among BIM platforms and the effectiveness of using the carried data in production planning, fabrication and site work activities. Starting ...

Keywords: Reinforcement, concrete, BIM, IFC, interoperability, geometric modeling

Automated Cost Analysis of Energy Loss in Existing Buildings through Thermographic Inspections and CFD Analysis

Youngjib Ham, Mani Golparvar-Fard
Pages 1065-1073

Understanding energy performance of existing buildings is vital to increasing their efficiency and reducing the overall energy consumptions. This entails facility managers to systematically monitor building energy performance and reliably identify and analyze potential problems. Currently, infrared thermography is widely used as a primary diagnostic tool for the detection of building performance problems. Nonetheless, applications of thermal images for building ...

Keywords: Building Retrofit, Thermography, Image-based 3D Reconstruction, Computational Fluid Dynamics (CFD), R-value

Dynamic Biomechanical Simulation for Identifying Risk Factors for Work-Related Musculoskeletal Disorders During Construction Tasks

J. Seo, S. Lee, T. J. Armstrong, S. Han
Pages 1074-1084

We propose a dynamic biomechanical simulation method that uses motion capture to evaluate the risk of Work-related Musculoskeletal Disorders (WMSDs). Statistics show that WMSDs accounted for 33% of all non-fatal occupational injuries and illness in construction in 2009, and were a leading cause of temporary and permanent disability. Present methods rely largely on self-reports from workers, observational techniques, and direct ...

Keywords: Work-related musculoskeletal disorders, Biomechanical model, Motion capture

Autonomous Modeling of Pipes within Point Clouds

Mahmoud Ahmed, Carl T. Haas, Ralph Haas
Pages 1093-1100

Three-dimensional models are in increasing demand for design, maintenance, operations and construction project management. Point-clouds are the main output of automatic data collection using laser-scanners and photogrammetric technologies. Pipe-works may comprise 50% of the value of important construction projects such as industrial and research facilities. We have developed a practical and cost-effective approach, based on the Hough-transform and judicious use ...

Keywords: No keywords

Automated Reconstruction of 3D As-Built Building Information Model for Building Energy Performance Assessment

C. Kim, H. Son, C. Kim
Pages 1139-1147

The integration of three-dimensional (3D) data with infrared thermography has received much attention for its potential use as input data for building energy simulations. Therefore, researchers have proposed methods to integrate 3D data with infrared thermography obtained by different sensors. These studies show the potential of the integration of 3D data and infrared thermography using various systems. However, these studies ...

Keywords: As-built model, Building information model, Building energy simulation, Infrared thermography, 3D data

Automatic Generation of BIM Using Parametric Family

J. Lee, Y. Liu, J. Kang, S. Ahn
Pages 1157-1163

A monolithic caisson is one of the major structural components commonly used in the construction of docks, breakwaters, and container terminal quay walls. Since the structure of monolithic caissons is typical and somewhat simple, its design process is also typical and repetitive, but still time consuming. To reduce the total time and enhance productivity, we developed a parametric model in ...

Keywords: BIM, Parametric modeling, Revit Family, automatic generation

Stochastic Simulation Model for a Long Distance Sand Transportation Process

J. Kang, S. Ahn
Pages 1164-1170

Large-scale land reclamation has been undertaken in Singapore since the 1960s. In the early years, the fill materials excavated from the hills. In recent years, sea sand is the main source of the fill materials. The contractors used to import the sea sand from the neighbouring countries such as Indonesia. However, in early 2000, the sea sand import from Indonesia ...

Keywords: Arena Simulation, Sand Transportation

Applicability of an Unmanned Aerial Vehicle Surveying to the Measurement of Digital Terrain Model

R. Heikkilä, J. Heikkilä, M. Mikkonen
Pages 1177-1183

As a part of a large research and development program in Finland, a system calibration for an UAV measurement method having practical experiments in a Jorvas Railway Yard design and construction project. The Railway yard construction are was measured using an UAV measurement device by Smartplanes (Smartone) and using some reference points measured by a GNSS device. The measured data ...

Keywords: Unmanned aerial surveying, digital terrain model

Development of BIM and Automation Based Total Process for Infra Construction – the State of the Art in Finland

R. Heikkilä, K. Laatunen
Pages 1184-1189

A large research and development program called RYM PRE (Process Re-Engineering) has been active in Finland since 2010. As a part of the program, a work packet Infra FINBIM is focused on the development of new national process model, specifications and requirements for the whole Finnish Infra Industry. In the Infra FINBIM, total 15 companies and main owners and 3 ...

Keywords: Infra, BIM, Automation, Total Process

Dynamic Management of Road Construction Operations on Site

R. Heikkilä, P. Tiitinen
Pages 1190-1196

Today road construction sites utilize more and more information modeling in design phases as well as model based 3-D machine control systems in site operations. For main contractor, the management and control of all the site operations is a demanding task including also many challenges created by continuously developing new technology. In the paper, the main requirements for successful dynamic ...

Keywords: Road Construction, Site Operations, Dynamic Management

A Study on Measuring of Reinforced-Concrete Structure by 3D Laser Scanner and Making Design of Pre-Cut Interior Finishing Components with Polygon Model

Kosei Ishida, Naruo Kano, Takeshi Igarashi, Hirohiko Fujii, Yuji Oosawa, Shintaro Sakamoto, Hiroyuki Tomita
Pages 1208-1215

To achieve renovation work without noise, the authors developed techniques of manufacturing pre-cut interior finishing components for renovation work. In this paper, to achieve the system of pre-cut interior finishing components, the authors describe a measuring method of reinforced-concrete structure by 3D laser scanner and then describe a method of making a design of pre-cut interior finishing components with the ...

Keywords: 3D laser scanner, Point clouds, Pre-cut, 3D CAD, Reinforced-Concrete Building

Development of BIM based rehabilitation and maintenance process for roads

R. Heikkilä, M. Marttinen
Pages 1216-1222

The utilization of Building Information Modeling (BIM) and model based 3-D control of work machines have increased a lot in new road construction in Finland as well as in other Nordic Countries. Up today, much less attention has been paid into the development of maintenance and rehabilitation processes. As a part of a large research and development program RYM PRE ...

Keywords: Automation, Roads, Information modeling, Mobile Laser Scanning, Maintenance

Use of a CO2 Gas Injection System in a Laboratory Model to Study Controlled Recirculation

V. Gangrade, F. Calizaya, M.G. Nelson
Pages 1223-1232

Recirculation is the major concern associated with the utilization of booster fans. In controlled recirculation, a portion of the return air is purposely mixed with the intake air and the mixture is directed towards a working district, while the air quantity and gas concentrations in the air are closely monitored and managed. The objectives of this study were to determine ...

Keywords: Ventilation, Booster Fan, Controlled Recirculation, CO2 Injection

Expansion of Building Information Model for Disaster Mitigation

Cheng-Ting Chiang, Chia-Ying Lin, Chien-Cheng Chou
Pages 1247-1254

Information integration and exchange for the entire building life cycle is one of the most important issues in the AEC industry. Although the Building Information Model (BIM) technology is widely utilized to address them, BIM is mainly concerned within the design and construction (D&C) phases. In the operation and maintenance (O&M) phases, however, the information integration and exchange issue becomes ...

Keywords: Building information model, Model-driven architecture, Disaster mitigation

Regeneration of Congested Areas by Robotic Urban Renewal

K. Iturralde, T. Bock
Pages 1255-1262

Dense transport infrastructure areas lack green facilities, they produce annoying noise and they are big energy consumers. As far as there is no free land or space, adding a vegetal covering to existing infrastructures has become a choice in order to get a more pleasant and comfortable environment. Noise barriers are getting spread all over the highways and sometimes they ...

Keywords: Urban, infrastructures, robotic assembly, green covering, energy source

Realtime Facility Management System Framework Based on Building Information Modeling and Web of Things

Seongki Lee, Sung-Ah Kim, Eun-Ho Oh, Eun-Young Shin, Tai-Kyung Kang, Yoo-Sub Lee
Pages 1281-1287

The purpose of this paper is to propose the real-time facility management system framework based on Building Information Model (BIM) and Web of Things. Latest IT such as BIM is rapidly spreading to architecture, civil engineering, engineering and maintenance with the aim of simplifying complex system in buildings and facilities, minimizing operation cost, providing high value services and advancing facility ...

Keywords: Building Information Model, Web of Things, CAFM, BEMS

TSP-Based Model for On-Site Material Handling Operations with Tower Cranes

Amir Zavichi, Kaveh Madani, Petros Xanthopoulos, Amr A. Oloufa
Pages 1288-1295

Today, with the necessity of timely, on-budget and high quality completion of projects, proper use of construction equipment is essential to ensure project success. Construction equipment places a large monetary burden on the project and if not utilized efficiently, it can result in economic losses. Cranes are one of the most important and expensive operational devices on construction sites. They ...

Keywords: Optimization, Scheduling, Tower crane, Automation, Decision support system

Criticality-Based Model for Rehabilitating Subway Stations

M. Abouhamad, T. Zayed
Pages 1296-1304

According to the Canadian Urban Transit Association (CUTA), 140 Billion CAD is required to maintain, rehabilitate, and replace subway infrastructure between 2010 and 2014. The current practice adopted by transit authorities for prioritizing subway stations for rehabilitation is based on the station structural needs. While this classification is reflective of station condition, other factors, such as station size, location and ...

Keywords: Subway stations, criticality Index, Fuzzy Analytic Network Process, Fuzzy Preference Programming

Human-Robot Integration for Pose Estimation and Semi-Autonomous Navigation on Unstructured Construction Sites

Chen Feng, Nicholas Fredricks, Vineet R. Kamat
Pages 1317-1325

Compared to widespread successful deployment of robotic manipulators for repetitive and hazardous tasks in related industries such as manufacturing, the construction industry has achieved relatively limited benefits from robotics and soft automation. Unlike manufacturing, where robotic solutions benefit from the structured layout of the environment (e.g., factory assembly line), construction robots face unique challenges that arise from the rugged, dynamic, ...

Keywords: Semi-autonomous navigation, Pose estimation, Mobile robot, Construction basic task

Study on Methodology for Detecting the Status of General Excavator without Renovation

Min-Sung Kang, Myeongsu Gil, Seunghoon Lee, Dongsu Shin, Chang-Soo Han, Jung Soo Han, Bo-Hyun Yu
Pages 1334-1341

Excavation and earthmoving equipment mostly operate in accident-prone areas. These areas normally have rollover, confinement, and fall or may be considered harmful work areas due to demolitions and sewage removals. It is inevitable that excavation and earthmoving systems should be developed to secure the safety of operators through unmanned and remote control systems. Therefore, this research proposes a system that ...

Keywords: Installation type, Tele-operated Excavation System, Sensor-based estimation, Human-Robot Cooperation

Mobile 3D Mapping for Surveying Earthwork Using an Unmanned Aerial Vehicle (UAV)

Sebastian Siebert, Jochen Teizer
Pages 1366-1375

Unmanned Aerial Vehicles (UAV) as a data acquisition platform and as a measurement instrument have become attractive for many surveying applications in civil engineering. However, their performance is not well understood for these particular applications. The specific scope of the presented work is the performance evaluation of a UAV system that was built to rapidly acquire mobile 3D mapping data ...

Keywords: Aerial surveying, camera, geomatics, laser scanning, mapping, photogrammetry, range point cloud, total station, safety, surveying, unmanned aerial vehicle (UAV), vision sensing

Developing Visualized Schedules for Plant Information Modeling

B. Leonard, H. Taghaddos
Pages 1376-1385

As of November 2012, the Alberta government listed 53 oil and gas, oil sands, and mining construction projects either proposed or currently under construction. These industrial plant construction projects have an estimated value greater than 105 million dollars. A common construction method employed for industrial plant projects is fast-track construction, which is used to reduce construction time. Contractors begin fast-track ...

Keywords: Plant Information Modeling, Industrial Plant Construction, Schedule Visualization, Animation, Modular Construction

Optimum Planning for Multi-Project Earthmoving Operations

S. Abu-Samra, A. H. El Hakea, C. Khalil, O. Hosny, A. Elhakeem
Pages 1394-1403

By virtue of its complex nature, the construction industry comprises a wide spectrum of interrelated variables and factors. This multifaceted character of the construction industry puts the use of engineering modeling tools and techniques on top of project management necessities. This research introduces a macro-level earthmoving management system using Genetic Algorithms (GAs) to reach the optimum allocation of earthmoving equipment. ...

Keywords: Earthmoving equipment, Multi-project optimization, Genetic Algorithms, Macro-level management

The Resonant Phenomena in a Pneumatic Drive Piston

L.T. Raevskaia
Pages 1412-1417

We discuss the stability problem of a piston of the reversible axial-piston pneumatic motor called DAR-14M. We performed the full analysis of stress and deformation characteristics of the piston near a resonant frequency with the help of FEM ANSYS. We estimated the own frequency of the piston analytically for the given motor, this estimate was confirmed numerically in the model ...

Keywords: Frequency of a forced oscillation, axial - piston pneumatic motor, near resonance behaviour

Sata Communication Manager for an Intelligent Excavation System

Jeonghwan Kim, Jongwon Seo
Pages 1418-1427

Intelligent Excavation System (IES) has been considered to be one of the desirable solutions to improve the productivity, quality and safety of the current earthwork processes. IES is composed of various hardware and software modules including task planner (work command generator), local and global work environment sensors, GPS and other sensors to acquire the excavator’s status, robotic controller and electronic ...

Keywords: Automated excavator, Construction equipment, Data communication, Intelligent earthmoving

Evaluation of Location Based Management System in the Construction of Power Transmission and Distribution Projects

Abhiram Shankar, Koshy Varghese
Pages 1447-1455

Construction projects are becoming more demanding both in terms of time and complexity. This necessitates intricate planning and sequencing of activities at the macro and micro level and continuous flow of resources across the project in order to achieve planned targets. Work and Resource planning need to be done in such a way that limited resources give optimal output. Currently ...

Keywords: Work-flow, Resource-flow, Location

A Novel Model for Risk Assessment of Adjacent Buildings in Tunnelling Environments

Limao Zhang, Xianguo Wu, Miroslaw J. Skibniewski, Yueqing Chen, Hanbin Luo
Pages 1481-1490

This paper presents a novel model to assess the risk of adjacent buildings in tunnelling environments based on Extended Cloud Model (ECM). ECM is an organic integration of Extension Theory (ET) and Cloud Model (CM), where ET is appropriately employed to flexibly expand the variable range from [0, 1] to (-8, +8), and CM is used to overcome the randomness ...

Keywords: Cloud Model; risk assessment; adjacent buildings; complex environments; decision support

Coordination Guidelines for Virtual Design and Construction

Anoop Sattineni, Kyle Mead
Pages 1491-1499

Over the past decade the use of BIM in the AEC industry has grown several fold and with it the number of standards available for implementing BIM. The ‘National BIM Standard’ by buildSmart Alliance, the ‘Contractor Guide to BIM’ by the Associated General Contractors of America, the ‘BIM Project Execution Planning Guide and Templates’ from Penn State University, the ‘BIM ...

Keywords: Coordination Guidelines, BIM Guidelines, BIM Standards, Virtual Design and Coordination

Derive Establishment Strategy of BIM Library Market and Optimal Revenue-Sharing Strategy between the Business Principals

Dong-min Lee, Chan-ho Park, Jae-sang Ahn, You-na Cha, Sang-yoon Chin
Pages 1500-1507

As the construction industry is becoming more large-scaled and complex, the BIM technology has been utilized throughout the industry. Since 2008, the construction industry in South Korea (Korea) has required carrying on BIM-based project continually. According to this trend, BIM S/W market, as well as BIM library market is also gradually activated. Many countries have already been establishing Web-based BIM ...

Keywords: BIM, Library market, Revenue-sharing, Game theory, Application, Korea, Distribution System

2012 Proceedings of the 29th ISARC, Eindhoven, The Netherlands 2012

Smart-BIM (Building Information Modeling)

B. de Vries, E. Allameh, M. Heidari Jozam
Pages 0-0

Purpose After a long period of international research and development, BIM has become mature. Many tools support the BIM process, or at least they claim. BIM not only offers opportunities for the Architectural Engineering and Construc-tion industry, but also for the client. In this paper we don’t focus on the professional client, but on the client of a building assignment ...

Keywords: BIM, smart technology, client support

National Guidelines for Bridge Information Modeling and Automation

Rauno Heikkilä
Pages 0-0

Purpose National bridge information modeling guidelines have been developed in Finland at the behest of the Finnish Transport Agency. The aim was to set, for the first time, national standard of producing and utilizing 3D-information modeling and automation in bridge engineering in Finland. Method In the guidelines, the terminology of different main design phases of bridges and information models is ...

Keywords: 3D, information modeling, bridges

BIM Functions for Optimized Construction Management in Civil Engineering

Hyoun Seok Moon, Hyeon Seung Kim, Leen Seok Kang, Chang Hak Kim
Pages 0-0

Purpose The aim of this study is to suggest configuration methodologies of active building information model (BIM) functions that enable to practically control limitations by optimizing schedule overlapping linked to its space models after analyzing workspace conflict analysis for a bridge model. This study also suggests development methodologies of active BIM-functions, linking an optimized method and improved strategies of future ...

Keywords: active BIM, passive BIM, optimization, risk assessment, workspace conflict

Markerless Vision-Based Augmented Reality for Enhanced Project Visualization

Frédéric Bosché, David Tingdahl, Ludovico Carozza, Luc Van Gool
Pages 0-0

Purpose This work aims to develop a system that enables improved visualization of Architectural Engineering and Con-struction (AEC) 3D-information for application in design, construction, and management of the built environment. Meth-od A novel Augmented Reality (AR) system is presented that uses a single standard digital camera and which, contrary to other investigated approaches, does not rely on any markers inserted ...

Keywords: realities or application systems, augmented reality, image-based, markerless

Parametric Modelling Based Approach for Efficient Quantity Takeoff of NATM-Tunnels

Daegu Cho, Nam-Seok Cho, Hunhee Cho, Kyung-In Kang
Pages 0-0

Purpose As every construction project is quite different according to the type of construction, 3D-representations on design, estimation, construction, and management also need to be different. While the 3D-approach has been widely applied to building projects, it has rarely been tested on large construction projects such as tunnels, mass transit systems, dams, highways, etc. Meanwhile, characteristics of NATM (New Austrian ...

Keywords: information technology, BIM, parametric modeling, NATM tunnel

Dynamic Simulation and Visualization for Site Layout Planning

Kai-Yun He, I-Chen Wu
Pages 0-0

Purpose In recent years construction projects have become more complex and time-driven, especially with the rapid rise in the number of active partners involved in each project. Space is regarded as a limited resource on construction sites. Proper planning for site layouts ensuring construction activities can be executed safely and efficiently is until now a time-consuming manual process. Site layout ...

Keywords: layout planning, optimization, Monte Carlo method, 4D visualization

BIM-Image-Based Indoor Localization Prototype

Ming Hsiu Tsai, Yu Cheng Hus, Cheng Ming Chiu, Sheng Huang Chuang
Pages 0-0

Purpose In order to provide an economical indoor location detective technique, this study is uses photo images as the indoor spatial identification tags associated with the spatial information of the existing building information model (BIM), so that users can identify their locations via the camera on mobile device based on the real images. Method Unlike the wireless and radio frequency ...

Keywords: indoor localization, BIM, image recognition, IFC

Automated Prediction of Condition State Rating in Bridge Inspection

R.S. Adhikari, O. Moselhi, A. Bagchi
Pages 0-0

Purpose This paper presents a new automated method to predict condition state rating in bridge inspection. The method is designed to identify proper risk-based inspection interval by neural networks and image processing techniques. Meth-od The surface defect considered in this research work is the loss of surface portion (scaling) of concrete due to freeze-thaw action based on Ontario Structure Inspection ...

Keywords: bridge inspection, condition state rating, neural networks, image analysis

Automated Quality Excellence Evaluation

Jozef Gašparík, Marián Gašparík
Pages 0-0

Purpose We aim to enhance quality level organization by applying the EFQM (European Foundation for Quality Man-agement) excellence model. We do this through analysis of current quality management trends, defining the EFQM-model structure and criteria (Figure 1) and the potential to introduce these with construction companies. We also propose an electronic manual and an automated evaluation system of the criteria ...

Keywords: management & social issues, quality, automation, model, excellence, system, construction

Automating Fabrication Sequencing for Industrial Construction

Di Hu, Yasser Mohamed, Simaan M. AbouRizk
Pages 0-0

Purpose Industrial construction projects are heavily dependent on pre-fabrication of piping components. Unlike traditional manufacturing, many pipe spools have a unique design and need to be custom fabricated due to the one-of-a-kind characteristic of each industrial project. This is reflected in the fact that fabrication sequences vary greatly among pipe spools. Planning these sequences has considerable impact on the fabrication ...

Keywords: automated planning, industrial construction, artificial intelligence planning, dynamic programming

Automated Pipeline Extraction for Modeling from Laserscanned Data

Joohyuk Lee, Changmin Kim, Hyojoo Son, Changwan Kim
Pages 0-0

Purpose Threedimensional (3D) as-built plant models are required for various purposes, such as plant operation, maintenance, and the expansion of existing facilities. The as-built plant model reconstruction process consists of as-built plant measurement and 3D plant model reconstruction. As-built plant measurement uses 3D laser scanning technology to efficiently acquire data. However, the current method used for 3D as-built plant model ...

Keywords: automation, as-built modeling, as-built pipe, parametric modeling, RANSAC

Gerontechnology Acceptance by Older Hong Kong People

Ke Chen, Alan H.S. Chan, Shing Cheung Chan
Pages 0-0

Purpose Technology develops at tremendous speed and its impact on our daily life is immense. However, studies have found that older adults are less likely to use technologies than younger people. The purpose of this study was to investi-gate the gerontechnology acceptance by the older population in Hong Kong. Acceptance was examined in terms of atti-tude and usage behaviour. Method ...

Keywords: Communication & governance, technology acceptance and usage, Hong Kong

A Bayesian Model for Real-Time Safety Management in Construction Sites

Emanuela Quaquero, Carlo Argiolas, Alessandro Carbonari, Filippo Melis
Pages 0-0

Purpose This article reports on an ongoing research project, which is aimed at implementing advanced probabilistic models for real-time identification of hazardous events at construction sites. The model has intelligent capabilities for near real-time automated recognition of hazardous events during the execution phase. To achieve this, features of Bayesian Networks have been exploited. In addition, inputs to the model are ...

Keywords: Automation, health and safety, Bayesian networks, construction sites

BIPV Prototype for the Solar Insolation Calculation

Manish K. Dixit, Wei Yan
Pages 0-0

Purpose Renewable energy components such as Building Integrated Photovoltaic (BIPV) often influence the aesthetic quality of a building adversely and hence need to be analyzed for their impact on building form and aesthetics. This be-comes crucial especially in the case of a sun-tracking photovoltaic system. Moreover, there is a need to propose a rea-sonably accurate but quick system to estimate ...

Keywords: information technology, BIM, solar insolation, clearness index, BIPV

Risk Communication Design for Older Adults

Vaibhav Garg, Lesa Lorenzen-Huber, L. Jean Camp, Kay Connelly
Pages 0-0

Purpose Older adults are more susceptible to fraud offline than younger adults. As they increasingly use the internet for activities including managing financial assets, this susceptibility is transferred online. Thus, there is an imminent need to communicate the risks inherent in these new technologies, especially that of data disclosure, to older adults. These risks might best be communicated by using ...

Keywords: communication and governance, security, older adults, risk communication

MDA-Based Facility Management Applications under BIM

Chia-Ying Lin, Chien-Cheng Chou
Pages 0-0

Purpose The recent research trend of building information modelling (BIM) involves interoperability and issues pertaining to the design, construction, operations, and maintenance phases of a building. However, few researchers are concerned with problems encountered in the last two phases of the building life cycle. Since BIM has been widely used in the design and construction phases, further expanding the BIM ...

Keywords: information technology; BIM; model-driven architecture; facility management

Applying Building Information Modelling in Environmental Impact Assessment for Urban Deep Excavation Projects

Siang-Rou Lu, I-Chen Wu, Bin-Chen Benson Hsiung
Pages 0-0

Purpose Due to the rapid development of cities, underground structures, such as deep excavations and tunnels have been widely used to increase underground space. Since these underground structures are often adopted in old and crowded town area, accidents may easily do serious damage to adjacent structure and even cause some casualties. Professional engineering knowledge and experience can reduce or avoid ...

Keywords: BIM, environmental impact assessment, deep excavation, monitoring

Fuzzy Set-Based Contingency Estimating and Management

Osama Moselhi, Ahmad Salah
Pages 0-0

Purpose Contingency estimating and management are critical management functions necessary for successful delivery of construction projects. Considering its importance, academics and industry professionals proposed a wide range of methods for risk quantification and accordingly for contingency estimating1. Considerably less work was directed to contingency management including risk mitigate during a project. Generally, there are two types of risks; (i) known ...

Keywords: Contingency, Management, Estimating, Depletion, Fuzzy set theory

Alzheimer’s Patient Activity Assessment Using Different Sensors

Carlos Fernando Crispim-Junior, Veronique Joumier, Yu-Liang Hsu, Ming-Chyi Pai, Pau-Choo Chung, Arnaud Dechamps, Philippe Robert, François Bremond
Pages 0-0

Purpose The number of people requiring care, including Alzheimer patients, will grow while the number of people able to provide care will decrease. We focus on the development of medical, information and communication technologies for improved diagnosis and evaluation of dementia progression in early-stage Alzheimer disease (AD) patients. Method We compared several sensors (video and accelerometer) to assess elderly performance ...

Keywords: health & self-esteem, multiple sensors monitoring systems, alzheimer dementia

Prediction of Project Cash Flow Using Time-Depended Evolutionary LS-SVM Inference Model

Min-Yuan Cheng, Nhat-Duc Hoang, Yu-Wei Wu
Pages 0-0

Purpose The ability to predict cash demand is crucial for the operation of construction companies. Reliable cash flow prediction during the execution phase can help managers to avoid cash shortages and to control project cash flow effectively. Method This paper presents a new inference model, CF-ELSIMT, for cash flow forecasting. The developed CF-ELSIMT utilizes weighted Least Squares Support Vector Machine ...

Keywords: construction management, weighted LS-SVM, cash flow forecasting, cost control

Application of Queuing Theory in Construction

Vjacheslav Usmanov, Cenek Jarský
Pages 0-0

Purpose Each production process in construction is closely connected with the question of costs and deadlines. In every project an investor or customer, as well as the construction company, has to meet the planned completion date and the estimated costs associated with the construction. In practice, determining the duration of construction at minimum costs is still not based on the ...

Keywords: queues theory, optimal choice, machines combination, construction, simulation

Laser Positioning System Using RFID-Tags

Shintaro Sakamoto, Naruo Kano, Takeshi Igarashi, Hiroyuki Tomita
Pages 0-0

Purpose We developed a production system for performing renovation work with increased use of pre-cut and prefabrication elements. To develop this system, a faithful 3D-CAD model of an existing building was made using a 3D-laser scanner. The purpose of this research is to develop a method for positioning the pre-cut and pre-fabrication elements precisely and at short notice. Method First, ...

Keywords: automation, renovation work, total station, 3D CAD, RFID tag, positioning

Dynamic Planning of Earthmoving Projects Using System Dynamics

Hani Alzraiee, Osama Moselhi, Tarek Zayed
Pages 0-0

Purpose The purpose of this paper is to present a dynamic planning model for earth moving operations through captur-ing the operations context level (scope change, skill level, etc.). Method Uncertainties, scope, and changes in project condition call for dynamic modeling of earthmoving operations. Static planning and scheduling methods such as CPM and PERT neglect – and are incapable of – ...

Keywords: earthmoving planning, system dynamics, simulation

Bid Decision Making with Prospect Game Theory

Min-Yuan Cheng, Chia-Chi Hsiang
Pages 0-0

Purpose This study proposes a new bidding decision model (Prospect Game Theory Model for Bidding Decision, BDPGTM) for construction companies to set optimal bidding prices. Method This study has successfully integrated fuzzy preference relations (FPR) with fuzzy rating (FR), cumulative prospect theory (CPT) and game theory (GT). FPR was employed to forecast implementation probability for bidding strategies, and to simplify ...

Keywords: bidding decision making, cumulative prospect theory, game theory

Integrating of Optimization and Data Mining Techniques for High-Speed Train Timetable Design Considering Disturbances

Ting-Wu Ho, Te-Che Chen, Chien-Cheng Chou
Pages 0-0

Purpose The Taiwan high-speed railway (THSR) system plays an important role in maintaining efficient transportation of passengers around Taiwan. However, the control mechanisms of THSR and the traditional railway systems are quite different. Drivers on THSR-trains cannot control the cars by themselves; only the control center of THSR can give the commands, which are based on the train timetables and ...

Keywords: timetable, optimization model, data mining, high speed rail

Is Color an Intrinsic Property of Construction Object's Representation? Evaluating Color-Based Models to Detect Objects by Using Data Mining Techniques

Nahyae Hwang, Hyojoo Son, Changwan Kim
Pages 0-0

Purpose Structural component detection is a prerequisite for various applications, including construction progress measurement and quality inspection. However, it is still a challenge to detect structural components reliably in construction site images taken from a complex and unstructured construction environment. Because construction site images contain numerous unexpected objects, structural components in the images are observed under different poses and varying ...

Keywords: automation, color, construction object detection, data mining technique, ensemble model

Combining Automatically and Manually Collected Data for Project Monitoring and Control

Shabtai Isaac, Ronie Navon
Pages 0-0

Purpose In an extended research program, started about two decades ago, a number of models have been developed for monitoring and controlling construction. These include models for the control of materials, earthmoving equipment, guardrail installation and labor. All these models convert data on the actual project performance that is obtained through Automated Data Collection (ADC) technologies, into information that can ...

Keywords: automation, project control, automated data collection

New Sampling Scheme for Neural Network-Based Meta-Modelling with Application to Air Pollutant Estimation

H. Wahid, Q.P. Ha, H. Duc
Pages 0-0

Purpose A new method for the design of experiments (DOE) or sampling technique is proposed, using a distance weight function and the k-means theory. The radial basis function neural network metamodelling approach1 is used to evaluate the performance of the proposed DOE by using an n-degree of test function, applied to the complex nonlinear problem of spatial distribution of air ...

Keywords: Automation, sampling, experimental design, metamodel, radial basis function network, air pollution model

Integrated Approach for Older Adult Friendly Home Stair-Case Design

Mona Afifi, Belinda Parke, Mohamed Al-Hussein
Pages 0-0

Purpose The concept of designing or modifying home environments plays an important role in maintaining safety for older adults (65 and older). Poor staircase architectural design could contribute to increasing the risk of falling for older adults. The purpose of this research is to evaluate staircase architectural design by investigating the risk of falling asso-ciated with staircase elements and aiming ...

Keywords: staircase design, older adult, risk of falling

Robotic Tile Placement: Tools, Techniques and Feasibility

Nathan King, Martin Bechthold, Anthony Kane, Panagiotis Michalatos
Pages 0-0

Purpose The project develops an integrated digital workflow for robotic tile placement, a novel construction method that allows for off-site use of industrial robotics for on-site tile surfaces, and a feasibility study for implementing the approach in the context of the tile industry. The proposed approach overcomes limitations of existing methods that focus merely on efficiency. Instead, the proposition of ...

Keywords: robotics, ceramic tile, computation

Modeling of a Mobile Manipulator for Redundancy Resolution

Baeksuk Chu
Pages 0-0

Purpose Recently, various applications of robotic systems to construction sites have been tried. In this research, a mobile platform-based serial manipulator, the so called ‘mobile manipulator’, is employed for construction tasks such as material handling, beam assembly, welding, and so on. Generally, a serial manipulator has 6 DOF (de-grees of freedom). The mobile manipulator suggested in this paper adds 2 ...

Keywords: mobile manipulator, redundancy resolution, construction robot

Height Estimation of Gondola-Typed Facade Robot

Dong Yeop Kim, Hwadong Sun, Jong Su Yoon, Chang-Woo Park
Pages 0-0

Purpose We researched an automated and robotic facade maintenance robot. This robot can protect people against safety hazards, and save labour cost for building facade maintenance. Our platform is gondola type. Accurate and robust height estimation is necessary for automation. We propose a methodology for height estimation. Method Even though there are many sensor systems for height estimation, a new ...

Keywords: robotics, gondola, facade, maintenance, height estimation

Estimation of Job-Site Work Progress through On-Site Monitoring

Alberto Giretti, Alessandro Carbonari, Gabriele Novembri, Federico Robuffo
Pages 0-0

Purpose This paper reports on the development of intelligent probabilistic models for real-time estimation of construc-tion progress, which operate on the basis of a continuous data flow collected by monitoring networks deployed on-site. Several authors listed the advantages that would be provided by the availability of such models, like project performance and quality control, timely onsite inspections, better control of ...

Keywords: automation, Bayesian networks, work progress, construction sites

Estimation with Applications to Dynamic Status of an Excavator without Renovation

Seunghoon Lee, Min-Sung Kang, Dong-Su Shin, Chang-Soo Han
Pages 0-0

Purpose Operators and drivers are easily exposed to danger by excavators is operating in dangerous places such as slopes, soft ground, building dismantling sites, distressed areas, and construction waste land-fills. For the safe use of conventional excavators as a tele-operated system without any renovation, feedback information of the boom, arm, and bucket cylinder should be estimated as a schematic of ...

Keywords: robotics, sensing mechanism, estimation, installation type tele-operated excavator

Static Compensation ZMP Algorithm Preventing Tips-Over of a Tele-Operation Excavator

Bo-Hyun Yu, Ki-Young Park, Kyung-Don Lee, Chang-Soo Han
Pages 0-0

Purpose Research on tele-operated excavators that protect the operator from the risk of tip-over excavators in hazard-ous working areas has increased in popularity. The tele-operated excavator is able to protect workers from risks in haz-ardous working areas, but the operator cannot directly access the tip-over information from the tele-operated excavator. We propose the static compensation ZMP (Zero Moment Point) algorithm ...

Keywords: excavator, tips-over, ZMP (Zero Moment Point), CoG(Center of Gravity)

Aging and Architecture Design Aids by Integral ‘Age-Proof’ Housing Models

Peter Schmid, Gabriella Pal-Schmid
Pages 0-0

Purpose: The aim was to offer integral design aids for ’age-proof’ housing. The main goal is to enable architectural de-signers to develop housing concepts of a higher than usual quality for aging users. Easy-to-follow models as design aids were developed in the context of R&D. These models indicate what to avoid, where protection is needed, and how to improve design ...

Keywords: ‘Age-Proof’ Housing Model, Architecture and Aging, Integral Design Aids

2011 Proceedings of the 28th ISARC, Seoul, Korea 2011

Automated System of Building Machine Group Selection from the Point of Energy Consumption Minimization

Josef Gasparik, Marian Gasparik
Pages 19-24

Energy saving is one of the most important environmental factor during the process of building realization. The objective of our contribution is proposal of building machine group selection automated system for earth processes from the point of energy consumption minimization. There is described at this paper structure of machine selection optimizing method for building processes, model example with results concerning ...

Keywords: Building, Machine, Automated System, Energy, Optimization, Earth Process

A Comparative Study on the Relationship between Residential Density and Vehicular Energy Use in Florida

Yongjin Joo, Young Il Kim, Tae-Ho Kim
Pages 39-44

High population, vehicles, and employment and high energy use could generate congestion that has been considered as a result from diseconomies of agglomeration. However, congestion and energy use problem could be mitigated in a compact city due to shorter commuting distance, efficient vehicular operation, etc. US government and local state governments have been trying to redirect its energy use to ...

Keywords: Urban Density, VMT, Energy Use, & Compact Development

Laser Marking System Based on 3D CAD Model

Shintaro Sakamoto, Naruo Kano, Takeshi Igarashi, Hiroki Kishimoto, Hirohiko Fujii, Yuji Oosawa, Kentarou Minami, Kousei Ishida
Pages 64-69

In many cases of renovation work, it is very difficult to gain sufficient information about the existing building such as the positions and dimensions of the frame, interior and equipment because of incomplete or missing drawings. As a result, it is necessary to fabricate the parts on the construction site. We have been developing a system for measuring existing buildings ...

Keywords: Renovation Work, 3D CAD, 3D Laser Scanner, Total Station, Marking

On Computer Modelling and Utility Assessment of Buildings and Projects

Cenek Jarsky
Pages 89-94

The paper describes the methodology of computer modeling of the building process of projects with utility assessment and the main principles of the integrated cost estimation, project management and quality assurance microcomputer based system developed recently. This expert system is based on quick modeling of the building process by use of typical construction technology network diagrams, which can be prepared ...

Keywords: Construction Technology, Building Process, Network Analysis, Model, Utility Assessment, Project Management

A Crowd Model with Multiple Individual Parameters to Represent Individual Behaviour in Crowd Simulation

Quanbin Sun; Song Wu
Pages 107-112

This paper presents a crowd model which aims to simulate the individual behaviour and increase the heterogeneity in crowd simulation thus to achieve a more realistic simulation result. This model builds upon the physics foundation by referencing both Reynolds’ Boids model and Helbing’s Social Force model. The mechanism of behaviour processing is based on the Reynolds’ steering behaviours model. The ...

Keywords: Crowd Simulation, Crowd Modelling, Individual Behaviour, Multi-Agent System, Social Force Model

The Study of BIM-Based MRT Structural Inspection System

Chung-I Yen, Jieh-Haur Chen, Pei-Fen Huang
Pages 130-135

The Taipei MRT (Metropolitan Rapid Transit) system has been operated since 1996. Facing the challenge of safety and sustainability of MRT, it is urgent to develop a structural inspection strategy and maintenance system based on the concept of life cycle management. In the mean while, Building Information Modeling (BIM) has become an emerging technology in the architecture and construction industries. ...

Keywords: Building Information Modeling, Metropolitan Rapid Transit System, Shield Tunnel, Facility Management, Structural Inspection

Enhanced Platform for Building Information Modeling to Improve Reality

Boong Yeol Ryoo; Hyung Keun Park
Pages 136-137

In order to improve the mobility and practicality of Building Information Models (BIM), a framework using a multimedia device, a global positioning system (GPS) and inclinometer is proposed. The GPS receiver provides location and an inclinometer measures angle of slope, both inclines and declines, of an observer. Based on these two additional inputs, the proposed system displays a BIM element ...

Keywords: Mixed Reality, Building Information Model (BIM), Global Positioning System (GPS), Inclinometer, Augmented Reality (AR)

BIM–Based Building Curriculum Vitae System

Wei-Liang Kuo, Yi-Wei Lee, Kai-Yun He and I-Chen Wu
Pages 138-143

During the life cycle of a building project, voluminous data and information are usually created along with the delivery processes of building products. Currently, most information management methods are based on several different file collection approaches, which are mostly unrelated. Therefore, the various project participants are unable to synthesize building information from different sources. To address this problem, we propose ...

Keywords: BIM, 3D Models, Information Integration, Information Visualization, Construction Life Cycle

Preparing A Buindling Information Model For Facility Maintenance And Management

Anoop Sattenini, Salman Azhar, Joseph Thuston
Pages 150-155

Over the past five years Building Information Modeling Software (BIM) has made tremendous inroads in the US-AEC industry. The use of BIM software such as Autodesk Revit is now common place among large US contractors. The model is currently being used for issues such as design, engineering, visualization, conflict resolution, construction simulation, subcontractor co-ordination and cost projection. In theory a ...

Keywords: Facility Management, Building Information Modeling, University Facilities Division

The BIM-Based Information Integration Sphere for Construction Projects

Chung-Wei Feng, Osama Mustaklem, Yi-Jao Chen
Pages 156-161

Building Information Modeling (BIM) has been employed in the AEC industry to provide the data repository for the various stakeholders of construction projects in past years. For example architects use it to streamline the information transition throughout the design phases of a project, structural and MEP engineers use BIM as the database for their design projects, and project engineers use ...

Keywords: BIM, Information Integration Model

Simple Tool for Cost Estimation of Recovery of Damaged Sites

Masaru Kaidzu; Hiroyuki Takiguchi
Pages 176-181

Recently, Home use digital camera equipped with GPS and compass are available in the market. Some of them are equipped with accelerometer and perform positioning in places where receiving GPS signal is difficult. Using such digital cameras, we can record position and direction of cameras on EXIF information of pictures. When it is shown on maps using GIS, we can ...

Keywords: No keywords

Intuitive and Usable Risk-Based Cost Contingency Estimation Model for General Contracting Firms

Javier Ordonez; Borinara Park
Pages 193-198

Construction projects inherently possess uncertainties, which represent risks and opportunities to contracting business entities. Their business success, therefore, is largely defined by how these uncertainties are managed from the planning and estimating to execution phases. Traditionally risks, in particular, have been dealt by converting them into the form of a contingency. Ironically, however, cost estimators have relied on deterministic ways ...

Keywords: Contingency, Risk Management, Risk Register

Stochastic Decision Making for Sustainable Energy System Selection

Jui-Sheng Chou; Citra Satria Ongkowijoyo
Pages 199-205

A sustainability enhancement is generally measurable by its environmental, economic, and socio-cultural effects. To apply this concept, this study developed and empirically tested a risk-based method for evaluating renewable energy policy. The proposed graphical matrix approach coupled with Monte Carlo simulation identifies and measures critical performance indicators at an acceptance level of reliability when comparing alternative renewable energy schemes. The ...

Keywords: Multi-criteria Decision Making; Monte Carlo Simulation; Graphical Matrix Approach; Sustainability Assessment; Renewable Energy

An Agent-Based Simulation Approach to Urban Morphology Analysis

Liang Chen; Edward Ng
Pages 212-216

The analysis of urban morphology and its impact on ventilation is a critical task in urban planning. Accurate urban-scale computational fluid dynamics models (CFD) are sometimes too expensive for rough estimations. Effective and convenient computer tools that could depict the pattern of the urban roughness are in great need. This paper presents a simulation approach which is grounded in the ...

Keywords: Urban Morphology Analysis, Multi-agent System, Way-finding

Stochastic Modeling for Quantifying Optimal Incentive Amounts of Early Project Completion

Kunhee Choi, Koohong Chung, Eun Suk Park, Jae Ho Pyeon
Pages 225-226

An effective Incentive/Disincentive (I/D) rate should fall above what a contractor needs to turn a profit by exceeding Contractor’s Additional Cost (CAC) for expediting construction and below the total cost saving by the agency. However, determining this type of I/D rate has been extremely challenging because of contractor’s reluctance to disclose pertinent CAC data and state transportation agencies’ lack of ...

Keywords: Infrastructure, Rehabilitation, Innovative Contracting, Incentive/disincentive, Decision-support Model, Stochastic Modeling, Road User Cost

Towards Optimization of Building Energy and Occupant Comfort Using Multi-Agent Simulation

Laura Klein, Geoffrey Kavulya, FarrokhJazizadeh, Jun-young Kwak, Burcin Becerik-Gerber, Pradeep Varakantham, MilindTambe
Pages 251-256

The primary consumers of building energy are heating, cooling, ventilation, and lighting systems, which maintain occupant comfort, and electronics and appliances that enable occupant functionality. The optimization of building energy is therefore a complex problem highly dependent on unique building and environmental conditions as well as on time dependent operational factors. To provide computational support for this optimization, this paper ...

Keywords: Building Energy Consumption, Multi-agent Systems, Occupant Comfort, Multi-objective Optimization

Conceptual Cost Estimation of Pump Stations Projects Using Fuzzy Clustering

Mohamed Marzouk; Magdy Omar
Pages 304-309

Conceptual cost estimates, are prepared at the very early stages of a project, and generally before the construction drawings and specifications are available. At this stage, cost estimates are needed by the owner, contractor, designer, or funding agencies for determination of the feasibility of a project, financial evaluation of a number of alternative projects, or establishment of an initial budget. ...

Keywords: Conceptual Cost Estimation, Fuzzy Clustering, Pump Stations Projects

Structure-From-Motion for Earthwork Planning

Khaled Nassar, Ebrahim A.Aly, Younghan Jung
Pages 310-316

The reconstruction of surfaces from unorganized point clouds can be of great use in construction applications. Point clouds are mostly created by 3D scanners. Another technique for generating point clouds is the structure-from-motion technique, where the point cloud is generated from a sequence of images. This paper utilizes a surface reconstruction technique to model and quantify earthwork. The described technique ...

Keywords: Structure-from-motion, Construction, Earthwork, Image Processing, 3D Surface Reconstruction

Discussion on the Relaxation Camp Facility Management and the Establishment of the Information System

Yan-Chyuan Shiau, Lian-Ting Lu, Meng-Jia Yeh, Shu-Jen Song, Chin-Ting Wang
Pages 329-334

Information management became the tidal for most occupations. An effective management system to inte- grate related information for relaxation camp can provide effectiveness from different phases. This can enhance the farm value, feedback with ecology care, and significantly assist for long-term development. In “Medium-range Construction Plan for Important Sightseeing Scenic Spot”, the Ministry of Communications Sightseeing Bureau in Taiwan indicated ...

Keywords: Relaxation Camp, Facility Management, Database, ER Model

Automatic Creation of Semantically Rich 3D Building Models from Laser Scanner Data

Antonio Adan, Xuehan Xiong, Burcu Akinci, Daniel Huber
Pages 343-348

Laser scanners are increasingly used to create semantically rich 3D models of buildings for civil engineering applications such as planning renovations, space usage planning, and building maintenance. Currently these models are created manually – a time-consuming and error-prone process. This paper presents a method to automatically convert the raw 3D point data from a laser scanner positioned at multiple locations ...

Keywords: Interior Modeling, 3D Modeling, Scan to BIM, Lidar, Object Recognition, Wall Analysis, Opening Detection

Bad Apple Theory of Human Error and Building Information Modelling: A Systemic Model for BIM Implementation

Peter E.D. Love, David J. Edwards, Sangwon Han
Pages 349-354

Building information modeling (BIM) is significantly influencing the way in which building and engineering projects are being planned, designed, constructed and maintained. It has been widely advocated that BIM will significantly reduce design and construction errors as well improve project cost and schedule. There is a lack of empirical research about the underlying ‘latent conditions’ contributing to error, which has ...

Keywords: BIM, Error, Learning, Technology, Software Vendor

Representation Requirements of As-Is Building Information Models Generated from Laser Scanned Point Cloud Data

Engin Burak Anil, Burcu Akinci, Daniel Huber
Pages 355-360

Obtaining and utilizing as-is information with 3D imaging technologies, such as laser scanners, during various phases of facility life-cycle is becoming common practice. Both during construction and facility operations information derived from laser scanner data can serve many purposes by providing accurate information about the conditions of the facilities at the time of the scanning. Currently, the information derived from ...

Keywords: As-is BIM, As-built BIM, As-designed BIM, Laser Scanner, Point Cloud

Cobie-Based Lightweight Representation of a Building Navigation Network

Saurabh Taneja, Asli Akcamete, Burcu Akinci, James H. Garrett, Lucio Soibelman, E. William East
Pages 361-366

A navigation network is required for analysis in several activities during various phases of a building lifecycle, such as building accessibility analysis [22], building egress code compliance ([15], [11]), wayfinding [10], indoor positioning [18] and navigation guidance [18]. Various models for representing navigation networks have been proposed in literature [1], such as graph-based, set-based and hybrid models, but there is ...

Keywords: Geometric Topology Network, Navigation guidance, COBie, BIM

Use BIM to Construct Electronic Resume System for Building Project

Yan-Chyuan Shiau, Ming-Teh Wang, Chi-Huan Lin, Zhe-Yu Guo
Pages 367-372

The main function of Building Information Modeling is to establish the common internal project-related in- formation for each stage for the whole life cycle of the building. User can fetch and store related information in this inte- grated platform. The data input by former user can be fetched by other relevant personnel to improve project quality, save time, as well ...

Keywords: Database, ER Model, Construction Resume, RFID, BIM

Enhancement of Spatial and Physical Elements for IFC-Based Bridge Data Model

Bong-Geun Kim; Sang-Ho Lee
Pages 375-376

This study provides an enhanced data model which can represents bridge components in a 3-D model hierarchically. The bridge components were identified through careful investigation of standardized classification systems of construction information, official dictionaries, and technical documents. The identified components were classified into spatial, physical and part elements and defined as entities according to the framework of IFC (Industry Foundation ...

Keywords: Bridge Component, Data Model, Standard, Industry Foundation Classes

Data Storage and Data Mining of Building Monitoring Data with Contexts

Nobuyoshi Yabuki, Yoshihiro Yoshida, Shota Tsukamoto, Tomohiro Fukuda
Pages 377-378

In order to improve the energy efficiency of buildings, many sensors have been being installed in buildings for monitoring temperature, humidity, electricity consumption, etc. In the Building Energy Management Systems (BEMS), it seems that visualization of the monitoring data is the main objective and that managers still have to find problems from the visualized data with drawings of buildings as ...

Keywords: Data Mining, Knowledge Discovery, Context, Monitoring Data, Building, Sensor, Energy Efficient Building

Green Score: Developing a Measurement Model for Sustainable Pedestrian-Friendly Environment Based on Space Syntax

Yongjin Joo, Young Il KIM, Tae-Ho Kim
Pages 385-390

Pedestrian-oriented transportation has recently emerged as an important issue to supplement transportation modes as a method to reduce traffic accidents and environmental pollution. Compared to the increasing attention, practical studies considering the transportation environment in Korea are very limited. As a first step for studying the service level of pedestrian environment, it is necessary to develop an objective and systematic ...

Keywords: Walking Environmental Score, Space Syntax, AHP(Analytic Hierarchy Process), Web GIS Service

Theoretical Issues in Advancing Infrastructure Asset Management Programs

"David" Hyung Seok Jeong, Syadarudin Syachrani, Colin S. Chung
Pages 417-418

Asset management has been truly a buzz word in recent years for infrastructure management professionals as a promising framework to achieve the optimal use of financial resources and to find smart and carefully crafted decision making processes on maintenance, rehabilitation and replacement activities. This paper addresses major theoretical issues that must be answered in order to advance the infrastructure asset ...

Keywords: Infrastructure Management, Asset Management, Deterioration Model, Clustering Approach

A Conceptual Framework for Total Constraint Management in Construction

Ted Blackmon, Rehul Saxena, Lingguang Song
Pages 419-424

Complex construction projects are subject to numerous constraints that limit the commencement or progression of field operations. Effective management of these constraints is a key element in the look-ahead planning process to ensure a constraint-free work plan, and thus efficient field operations. While past studiesprimarily deal with a limited set of constraint types, there is a need for a more ...

Keywords: Constraints, Workface Planning, Total ConstraintManagement, Classification, Tracking

Ethical Consideration of Construction Union Strategies in Jurisdictional Disputes Based on an Agent-Based Modeling (ABM) and a Game Theory

Borinara Park
Pages 424-429

Union-related conflicts, building trade unions jurisdictional disputes in particular, have a long history in the US construction industry since the establishment of the unions. Jurisdictional boundaries constantly change and craft jurisdictional privileges are occasionally encroached. The outcomes of these conflicts and confrontations are pricy because they affect local and regional construction markets negatively. Yet explanation of this phenomenon is not ...

Keywords: Union Disputes, Ethics, Prisoner’s Dilemma, Game Theory, Agent Based Modeling (ABM)

Sustainable Business Process Management Model for Construction Companies

Song Young Woong, Choi Yoon Ki
Pages 430-435

Construction companies require a management system to increase efficiency and profit due to the competitive and globalized business environment. Changing business environment also requires prompt and flexible responses such as establishing management strategies, increasing value of intangible assets, and measuring and collecting real-time data. Specific approaches are also called for to achieve realistic, organized and rational management amid constant and ...

Keywords: BPM (Business Process Management), IT (Information Technology), PI (Process Innovation)

A Study on Data Interaction among Different Levels of Detail in Planning Phases for Mega Projects

Hyeon-Jeong Choi, Min-Ji Kwon, Ju-Hyung Kim, Jae-Jun Kim
Pages 442-448

Urban renewals in an area or district consist of multiple facilities construction projects, and thus, should be managed as a program. Successful program management is enabled by seamless information of subprojects during its whole lifecycle. In the aspect of data management, program is differentiated with project by its own management structure. Specified architectural design data of individual facilities become the ...

Keywords: Web-based Planning, Multi-project Data Management, Data Interaction, Program Management, Planning Phase, Product Model, LOD (Level of Detail)

An Economic Evaluation System for Building Construction Projects in the Conceputal Phase

Hyung-Jin Kim; Yong-Chil Seo
Pages 467-472

The conceptual phase of capital projects is of strategic importance - an economic evaluation at this early stage is critical to the owners’ decision-making with limited information. The current study developed a comprehensive but practical system that can be used in such an early phase for economic evaluation of capital building construction projects. The system integrates four analytical steps: project ...

Keywords: Economic Evaluation, Capital Projects, Conceptual Phase, Automation, Historical Database

Data Mining-Based Predictive Model to Determine Project Financial Success Using Project Definition Parameters

Seungtaek Lee, Changmin Kim, Yoora Park, Hyojoo Son, Changwan Kim
Pages 473-478

The planning stage is important for project development because the majority of important decisions are made at this stage. Having a well-defined project plan will reduce project uncertainty and increase the likelihood of the project’s success. In other words, based on the level of project definition in the planning stage, project success or failure can be predicted. The aim of ...

Keywords: Cost Performance, Data Mining, Performance Prediction, Project Definition Rating Index, Project Planning, Support Vector Machine

Plane-Based Coarse Registration of 3D Point Clouds with 4D Models

Frederic Bosche
Pages 479-484

The accurate registration of 3D point clouds with project 3D/4D models is becoming more and more important with the development of BIM and 3D laser scanning, for which the registration in a common coordinate system is critical to project control. While robust solutions for scan-model fine registration already exist, they rely on a fairly accurate prior coarse registration. This paper ...

Keywords: Coarse Registration, Laser Scan, Point Cloud, 3D, 4D, CAD Model

Radio Frequency Identification (RFID) Integrated with Building Information Model (BIM) for Open-Building Life Cycle Information Management

Min-Yuan Cheng; Nai-Wen Chang
Pages 485-490

This research developed an integrated “radio frequency identification with building information model” (RFID-BIM) to manage life cycle information related to open-building projects. The modularized components of open- building, including structural support systems and infill systems (e.g., partitions, facilities and pipes), which permits repetitive assembly and disassembly. Contractors prefabricate standard modular components offsite prior to installation. RFID technology can facilitate the ...

Keywords: Open-building, Life Cycle, BIM, RFID, 4D

Using Genetic Algorithms to Estimate the Scour Depth around the Bridge Pier

Chung-Wei Feng, Shen-Haw Ju, Hsun-Yi Huang, Pao-Sheng Chang
Pages 514-519

Scouring around bridge piers is the important safety issue of bridge management since it could lead to bridge slanting and collapsing. Since the mechanism of water flow around the pier structure is so complicated, which makes it is very difficult to develop a generic model to determine the scour depth. Many researchers have tried to estimate the scour depths around ...

Keywords: Genetic Algorithm, Scouring around Bridge Piers, Natural Frequency

BIM-Based Energy Mornitoring with XML Parsing Engine

Jeong-Han Woo, Carol Diggelman, Bass Abushakra
Pages 544-545

Due to the urgent need for a response to energy security, aging commercial buildings are required to conform to increasingly stringent environmental standards, particularly with regard to energy and water consumption. Solutions to reach the energy-related goals seem to exist. However, it is often difficult to gain synergistic benefits from the installations. The energy savings actually achieved are often disappointing. ...

Keywords: BIM, Energy Efficiency, Baseline Building Model, XML Parser, Sensor Network

Detection, Modeling and Classification of Moldings for Automated Reverse Engineering of Buildings from 3D Data

Enrique Valero, Antonio Adan, Daniel Huber, Carlos Cerrada
Pages 546-551

Laser scanner data is increasingly being used for the detailed reverse engineering of buildings. This process is currently primarily manual, but recent research has shown that basic structures, such as walls, ceilings, floors, doorways, and windows, can be detected and modeled automatically. Building on this previous research, we focus on the modeling of those linear moldings that typically surround doorways, ...

Keywords: BIM, Moldings, Laser Scanner Data, Segmentation, Modeling

Lessons Learned in Building Information Modeling Applications

Jie Gong; H. Felix Lee
Pages 558-559

Keywords: Building Information Modeling, 4D Simulation, Model-based Estimating, Clash Detection

Simulation for Steel Bridge Erection by Using BIM Tools

Chui-Te Chiu, Tseng-Hsing Hsu, Ming-Teh Wang, Hsien-Yen Chiu
Pages 560-563

Steel bridge erection requires a series of processes in the construction site including shipping, sequentially lifting, and installing bridge components that are fabricated in the factory. Each process is critical and the risks are high due to the fact that conditions in the field are far more complex than in the factory. A detailed lifting plan is important to ensure ...

Keywords: Building Information Modeling, Steel Bridge Erection, Virtual Design and Construction

Estimating with BIM: A Survey of US Construction Companies

Anoop Sattineni; R. Harrison Bradford II
Pages 564-569

The use of Building Information Modeling (BIM) in the construction industry is on the rise. It is widely acknowledged that adoption of BIM would cause a seismic shift in the business processes within the construction industry and related fields. Cost estimation is a key aspect in the workflow of a construction project. Processes within estimating, such as quantity survey and ...

Keywords: BIM, Estimating, Survey, US Construction Companies

Case Study: Development of BIM U-Education System with Open BIM Library

Jin Woo Jeon; Shin Jo Eom
Pages 570-571

Recent changes within the digital business environment have shifted construction industry toward a more adoption of new technologies as BIM(Building Information Modeling). However, adoption of BIM concept or 3D drawing means a lot of time and labors are needed to develop the 3D model of structure, also all participants in the project network have to familiar with 3D tools. Internationally, ...

Keywords: BIM, Education, Training, Ubiquitous, U-learning System, BIM Library

Development of Position Measurement System for Construction Pile Using Laser Range Finder

Fumihiro Inoue, Takeshi Sasaki, Xiangqi Huang, Hideki Hashimoto
Pages 574-580

This paper describes the development of an accurate long-distance position measurement system for construction pile using Laser Range Finders (LRF). The pile positioning and driving is the first work that is one of the important works to request the attentions in the building construction. In general, though the position of piling is measured by the total station that is high ...

Keywords: Laser Range Finder, Construction Pile, Position Measurement, Survey System, Estimation Method

Sensor Networks for Acoustic Source Localization Using Acoustic Fingerprint in Urban Environments and Construction Sites

Chantri Polprasert, Pornanong Pongpaibool, Pratana Kukieattikuool, Chalee Vorakulpipat, Siwaruk Siwamogsatham
Pages 581-586

We investigate the feasibility and performance of the acoustic localization system using the acoustic fingerprint for asynchronous wireless sensor network (WSN) in urban environments and construction sites. The location estimation is calculated by comparing the acoustic fingerprint obtained from multiple sensors with those pre-computed in the database. To calculate the fingerprint, we avoid expensive measurement process by using a 2-dimensional ...

Keywords: Surveillance, Monitoring, Acoustic source localization, Wireless sensor network, Fingerprinting

Concrete Strength Evaluation Technique Using Piezoelectric Guided-Wave Propagations

Dong Jin Kim, Changgil Lee, Seok Inn Hong, Seunghee Park
Pages 595-596

Recently, novel methods using piezoelectric materials to monitor the strength development of concrete during curing process have been reported. However, these methods showed some limitations to obtain an absolute concrete strength in real-world. In order to estimate the absolute strength of the concrete, the concrete strength monitoring method using guided- wave propagation is proposed in this study. Because the wave ...

Keywords: Concrete Strength Estimation, Guided-Wave Propagation, Embedded Piezoelectric Sensor, Linear Regression

Simulation Model to Predict Project Time and Cost Performance of Incentive/Disincentive Construction Projects

Jae-Ho Pyeon, Kunhee Choi, Moonseo Park, Sooyoung Kim
Pages 615-616

In highway construction, Incentive/Disincentive (I/D) contracting provisions have been widely used to motivate the contractor for early completion of roadway construction in the United States. Although I/D provisions are one of the owner’s useful management tools, there is no systematic decision support system for the selection of I/D projects. This paper presents a project time and cost performance simulation model ...

Keywords: Incentive/Disincentive, Alternative Contracting, Decision Support Systems, Project Performance, Highway Construction

Development of 3D Information Models for the Maintenance of Subway Infrastructures

Chang Su Shim; Seong Wook Kim
Pages 623-624

Maintenance of subway tunnels and stations is one of the most difficult areas because of limited allowed inspection time and complex environment surrounding the infrastructures. Congested urban buildings and underground facilities make the construction and renovation of subway infrastructures more troublesome. In this paper, 3D information models including geometry models and their related information were developed for the maintenance of ...

Keywords: Maintenance, Subway, 3D Information Model, Inspection, Assessment

A Generation Step for Force Reflecting Control of a Pneumatic Excavator Based on Augmented Reality Environment

Nguyen Thanh Trung, Dinh Quang Truong, Kyoung Kwan Ahn
Pages 637-642

Nowadays, excavators play an important role in construction machinery. Among them, pneumatic excavators are suitable selections for some specific applications, because of their advantages. As a new trend, automation of excavation helps improving productivity, safety, and reducing of operation costs, consequently, making construction works become feasible even in hostile environment. In traditional auto-operating methods, excavators are controlled by joysticks through ...

Keywords: Excavator, Pneumatic Actuator, Modeling, Augmented Reality, Force Reflecting

A Smart Crane Operations Assistance System Using Augmented Reality Technology

Yi-Chen Chen, Hung-Lin Chi, Shih-Chung Kangm, Shang-Hsien Hsieh
Pages 643-649

With the increasing complexity of modern construction projects, maintaining operational safety while increasing the erection speeds of cranes has become an important issue. There are four major problems in current crane operations: (1) dynamically changing working environments, (2) limited viewsfor operators, (3) unclear communication between operators and other crew, and (4) oversimplified control interfaces impeding efficient and safe erections. This ...

Keywords: Augmented Reality, Path Planning, Crane Operation, User Interface

A Graph-Based Approach to the Modeling of Changes in Construction Projects

Shabtai Isaac; Ronie Navon
Pages 672-677

The implementation of changes in construction projects often causes deviations from the objectives of the project client. One of the causes of this problem is that the tools currently used in projects do not support the identification of the consequences of a change before it is implemented in the project. The objective of the present research is to develop a ...

Keywords: Change Control, Project Modeling, Project Management, Decision Making

Simulation of Resurfacing Pavement Operation of Highways under Lane Closure Condition

Mohamed Marzouk, Marwa Fouad, Moheeb El-Said
Pages 706-710

Lane closures during paving operation on roads usually restrict the continuity of paving operations and traffic flow, causing delay in paving time and delay of traffic flow time. This paper studies the resurfacing operation of highways using computer simulation. It describes the different types of traffic control devices. It also describes the different types of paving including; semi-rigid paving and ...

Keywords: Computer Simulation, Lane Closure, Resurfacing Operation, Highway Reconstruction Project

Virtual Reality and Estimating Practice: A Software Selection Model for Estimating

Oluwole Allfred Olatunji
Pages 711-716

Construction estimates are a product of rigorous data analysis involving sophisticated data from a diverse range of multi-disciplinary sources. These data, often voluminous, are of different quality and are set to achieve slightly different goals which are not necessarily identical to the goal of the estimator. They are also engineered in different technologies which an estimator must be able to ...

Keywords: Computer-aided Estimating, Estimating Practice, Integration, Iinteroperability ISO, Virtual Reality

Probabilistic Performance Reliabiilty-Cost Tradeoff for Maintenance Strategy

Jui-Sheng Chou; Thanh-Son Le
Pages 717-724

Maintenance strategies are typically implemented by optimizing only the cost whilst the reliability of facility performance is neglected. This study proposes a novel algorithm using multi-objective particle swarm optimization (MOPSO) technique to evaluate the cost-reliability tradeoff in a flexible maintenance strategy based on non-dominant solutions. Moreover, a probabilistic model for regression parameters is employed to assess reliability-based performance. A numerical ...

Keywords: Cost Management, Maintenance Strategy, Performance Reliability, Monte-Carlo Simulation, Multi-objective Optimization, Particle Swarm Algorithm

3-D Road Sensor Network Analysis Based on Dem Images and Ubiconseye

Sang-Ho Yeon; Hak-doo Kim
Pages 725-727

UbiConsEye a "construction site automatic control system" as a more convenient and construction of the surrounding terrain and varied spatial object features and locations to investigate and measure the actual construction work on site is in progress the field situation, the desired time and field installation of terrain and facilities in place of the status information that can be configured ...

Keywords: Spatial Image, DEM, 3D, Road Network Analysis, UbiConsEye, Ubiquitous, Sensor Network, GPS

Design Process Visualization System Intergrating BIM Data and Performance-Oriented Design Information

Sung-Ah Kim, Yoon Choe, Myeongho Jang, Wookje Seol
Pages 728-733

The essential role of design process visualization is to capture and represent design information as well as the change of design objects to keep track of reasons behind decision-making activities. The most prominent benefit of BIM, among its wide-spectrum potentials, would be that it made possible to consider simulated building performances such as energy efficiency for critical decision-making criteria even ...

Keywords: Design Process Visualization, BIM Data, Design Versions, Building Performance Evaluation, Social Data

Intelligent Generation of Bill of Quantity from IFC Data Subject to Chinese Standard

Ma Zhiliang, Wei Zhenhua, Zhang Xiude, Qiu Shixun, Wang Pengyi
Pages 740-745

In the current way for construction cost estimating by using application software in China, the generation of bill of quantity usually needs plenty of manual work, because the design results cannot be used directly. BIM (Building Information Modeling) technology has provided a potential approach to generating bill of quantity more efficiently by utilizing the computable and reusable information which is ...

Keywords: Cost Estimating, Building Information Modeling, IFC Standard, Bill of Quantity, Chinese Standard

Enhancing Maintenance Management Using Building Information Modeling in Facilities Management

Yu Chih Su, Yi Chien Lee, Yu Cheng Lin
Pages 752-757

Facilities management (FM) usually is difficult and complicated work. The facility staffs usually use paper or information system to record the facilities maintenance work. However, it is not easy for facility staffs to refer the traditional 2D CAD-based information illustration in the facility maintenance. Moreover, the information of same facilities maintenance needs to repeat the record and cause inconvenience for ...

Keywords: Building Information Modeling, Facilities Maintenance Management, Information Technology

Development and Testing of Integrated Bridge Disaster Prevention and Management Platform

H. P. Tserng, S. H. Ju, K. C. Chang, C. W. Feng, C. T. Lin, J. Y. Han, K.W. Weng, N. H. Peng, H. C. Chung, P. S. Chang, P. C. Chen
Pages 772-776

In recent years, global warming leads rainfall intensity stronger than before. Therefore, bridge management requires a reliable monitoring platform in current, to monitoring of bridge piers based on the variations of safety and river erosion, can be timely warming of the bridge damage, achieving the maintenance of bridges safety in the flood. In view of bridge design and construction technology, ...

Keywords: GPS, Wireless Sensor Network, Bridge monitoring, Scour, Management Information System (MIS)

Fusion of Time-Of-Flight Camera and Stereo Camera Data for Enhanced 3D Work Environment Representation for Construction Equipment Automation

Hyojoo Son, Gyomin Lim, Changwan Kim
Pages 801-806

As the need to develop semiautomated and automated construction equipment increases in the construction industry, 3D work environment representation becomes increasingly important. Accurate, realistic, and rapid 3D representation of the work environment can be utilized for obstacle detection and collision avoidance by providing information about the state of the work environment. This paper describes a system to create a 3D ...

Keywords: 3D Work Environment Representation, Construction Eequipment, Flash LADAR, Semiautomated and Automated Equipment, Multi-sensor Data Fusion, Stereo Camera

An Approach to Automated Detection of Failure in Temporary Structures Supported by Concrete Shoring

Younghan Jung; Sangmook Lee
Pages 807-812

This paper suggests advanced video processing methods for monitoring temporary structures to detect possible structural failures. The causes of failures are mainly related to human error, but the imposed loads of structural failures can also be caused by complicated events such as accumulated stress, deflection, wind, vibration, and lateral forces. However, there is a lack of interactive tools to detect ...

Keywords: Video Imaging, Automated Detection, Temporary Structures, Shoring, Hidden Markov Model

Automation of Thermographic 3D Modelling through Image Fusion and Image Matching Techniques

S. Laguela, J. Armesto, H. Gonzalez-Jorge, P. Arias, J. Herraez
Pages 818-823

Infrared thermography has proved to be an adequate technique for building inspection, as it can be used to determine energy efficiency through the measurement of heat losses, air leaks and infiltrations, and also to detect humidity areas. These parameters have great influence in energy consumption of buildings and in their users' well-being, which is demonstrated by the appearance of regulations ...

Keywords: Infrared Thermography, Pan-sharpening, Image Matching, Geometry, Building

Auto-Regressive Compensation Technique for a Reliable Non Invasive Structural Health Monitoring System

Berardo Naticchia, Massimo Vaccarini, Alessandro Carbonari, Pierpaolo Scorrano
Pages 826-831

Detecting the health status of buildings is critical to produce correct diagnoses that could prevent many pathologies, as well as driving maintenance interventions through timely and well targeted operations. The constant innovation in the development of low power wireless sensing devices provides an unparalleled chance to develop efficient monitoring system prototypes, conceived to be very low intrusive and operating in ...

Keywords: Structural health monitoring, real-time control, dynamic temperature compensation, autoregressive models

A System Diagnosis through the Recognition of the Mode of Dynamic Motions of a Shaft by the Indirect Measurement in Journal Bearing

Rai-Wung Park
Pages 839-844

This work presents a method to develop a system diagnosis regarding to shaft in journal bearing. The timely righteous estimation and judgment of the states is very important for the safe operation in time domain system. The synthesis of this problem presumes that all state variables are observable for concerned system. But it seems that it is not feasible to ...

Keywords: Diagnosis, Observer, Mode, Indirect Measurement, Journal, Bearing

Rethinking Automation in the Sustainable Building

Brian R Wood
Pages 845-850

Since the first ISARC conference in 1984 and the formation of IAARC in 1990 there has been much development of interest in and understanding of automation and robotics in construction. The ‘intelligent building’ [1] [2] and the ‘learning building’ [3] are conceptual examples. Yiu and Yau [4] have published a ‘learning model of intelligent home’. At the same time there ...

Keywords: Automation, Control, Occupant behavior, Building performance, Sustainability, Users

High Tech / Low Tech: Tectonic Machines, Earth-Built Traditions, and Constructing The Exigent City

Marcus Shaffer
Pages 851-856

With continuous advancements in the performance and economics of mobile/remote technologies and computer-aided manufacturing (CAM) systems comes an increase in the plausibility of semi-autonomous construction devices for deployment in response to large-scale humanitarian disasters. Robotic building-making machines capable of continuously and safely erecting replacement housing, urbanistic architecture required for resettlement economies, and semi-permanent “emergency cities”, represent our enormous technological potential ...

Keywords: Tectonic Machines, Displacement Environments, Earth-built Traditions, Exigent Cities

Dynamic Site Layout Planning Using MTPE Principle from Physics

Mohsen Andayesh; Farnaz Sadeghpour
Pages 857-862

Site layout planning is the task of determining optimum location for construction facilities on the site in order to increase productivity and safety of the project. Most of the existing studies assume all facilities are required for the entire duration of the project which is not a realistic scenario. More advanced studies have proposed dynamic models to reflect the changes ...

Keywords: Dynamic Site Layout Planning, Construction Site Safety, Construction Site Management, Optimization

A Study of Wayfinding in Taipei Metro Station Transfer: Multi-Agent Simulation Approach

Kuo-Chung WEN; Wei-Chen SHEN
Pages 875-879

Mass Rapid Transit (MRT) station is the transport node, with population concentrated, closed-space, more gates this type of space a high risk of accidents hidden. The study based multi-agent simulation (MAS) system to create wayfinding simulation in MRT station, to create an effective evacuation simulation model. It can use to this type of space as a basis for risk assessment ...

Keywords: Multi-agent Simulation, MRT Station, Wayfinding, Spatial Information Technology

Automated Head Pose Estimation of Vehicle Operators

Soumitry J. Ray; Jochen Teizer
Pages 880-885

In this paper we propose a method for evaluating the dynamic blind spot of an operator of a construction vehicle by integrating static blind spot map of a construction vehicle with the head orientation of the operator. By computing the position and orientation of the equipment operator’s head, the field-of-view (FOV) of the operator is known which is projected on ...

Keywords: PCA; SVR; head pose estimation; equipment blind spot and visibility; range TOF camera; safety

Lessons Learned from Schedule Estimation Using Real-Time Data in a Concreting Operation

Sangwon Han; Pan Hao
Pages 886-891

The unique, complex and interdependent nature of modern construction operations means that the use of previous datasets in simulating a new project may raise validity issues. To address this problem, the use of real-time data in simulation studies has been introduced and practiced in recent years. However, little is known about the details of how to use real-time data to ...

Keywords: Real-time Data, Discrete Event Simulation, Concrete Delivery, Schedule Prediction

Genetic Algorithm-Based Chaos Clustering Approach for Optimizing Construction Time-Cost Tradeoff Problems

Min-Yuan Cheng, Kuo-Yu Huang, Cao Phu Cuong
Pages 892-897

Time-cost tradeoff (TCT) problems have been studied extensively in construction management literatures. TCT decisions, as combinatorial optimization problems, are difficult to find out their optimal solutions. However, Genetic Algorithms (GA) coupled with chaos and K-means clustering approach, named KCGA, can tackle these problems effectively. KCGA has successfully incorporated two opposite properties contraction and diversity which come from K- means and ...

Keywords: K-means Clustering, Chaos, Genetic Algorithms, Construction Management

Trending and Forecasting in Construction Operations

Osama Moselhi; Xiao hui Xiao
Pages 905-910

This paper presents a study conducted in collaboration with large Canadian engineering, procurement and construction management (EPCM) firm to identify areas of improvement in the current process of progress reporting and forecasting project status at different targeted future dates. The study focused mainly on trending and time/Cost control of engineering, procurement and construction (EPC) projects. It encompassed a field study ...

Keywords: Forecasting, Cost Control, Visualized Progress Reporting

Fully Automated Registration of 3D CAD Model with Point Cloud from Construction Site

Changmin Kim, Joohyuk Lee, Minwoo Cho, Changwan Kim
Pages 917-922

In construction automation applications, registration between the 3D computer-aided design (CAD) model and the point cloud obtained by remote sensing technology is an important process such as progress monitoring and as-built modeling. However, the registration method to align the 3D CAD model and point cloud in construction automation has limitations because the registration is performed manually, which is less accurate ...

Keywords: Iterative Closest Point, Principle Component Analysis, 3D Registration

A Study on the Factors Affecting the Economical Life of Heavy Construction Equipment

Hongqin Fan; Zhigang Jin
Pages 923-928

Surveys found that large contractors replace approximately 10% of their equipment fleet units annually in North America. Cost minimization model is a commonly accepted method for equipment replacement which helps to identify these equipment units whose total owning and operating cost reaches their minimum point as candidates for replacement. While the model is conceptually clear with the aim of achieving ...

Keywords: Construction Equipment, Replacement Analysis, Decision Tree Modeling, Decision Support

Impacts of Matched Batch Sizes on Time Reduction in Construction Projects

Euysup Shim
Pages 929-934

Batching production is to process products in lots rather than by the piece and most activities in repetitive construction projects are performed by batching production. Batch size is a key factor which affects duration of construction project and it is recommended to use small batch size for early completion of construction projects. However, it is possible that batch sizes are ...

Keywords: Batch Size, Matched Batch Size, Productivity, Time Reduction

Performance Evaluation Mechanism for Engineering Consultants– Cases Study on Taipei Rapid Transit Systems

Chien-Hui Sun; Nie-Jia Yau
Pages 941-946

Engineering consultation is a knowledge intensive industry. It operates by providing design-related technical services. Although design cost is relatively far less than construction cost, the decisions made in the design phase have a significant impact on the project, especially for large public construction projects. Therefore, this research focuses on establishing a performance evaluation mechanism for the consulting firms that execute ...

Keywords: Performance Evaluation, Engineering Consultant, Taipei Rapid Transit Systems

Business Models for Convergence of Construction and Information Technology -A Senario Planning-Based Approach

Sung hoon Park, Soonwook Kwon, Mina Lee
Pages 955-956

Currently, the construction industry, which is already both high-innovated and sophisticated, is searching for new solutions in accordance with the incorporation of information technology. The objective is to create a high value construction industry through convergence with IT technology. However, there is no business model which is practical, profitable and marketable. Also, valid pre-research for development and study have not ...

Keywords: Scenario Planning, Cross-Impact, Business Model, IT Convergence

Modeling and Operating Robotic Environments Using Gazebo/ROS

Thomas Linner, Alaguraj Shrikathiresan, Maxim Vetrenko, Bernhard Ellmann, Thomas Bock
Pages 957-962

Tools like ROS and Gazebo have become more important in light of new building concepts with embedded robotic systems. Over centuries buildings have always been viewed as static structures resistant to changes. However, today they are also viewed as kinetic structures capable of change and adaptation. The concept of kinetic architecture or dynamic buildings is currently being exploited by many ...

Keywords: Kinetic Architecture, Building Information Modeling, Middleware, Robot Operating System (ROS)

Development of Optimized Point Clouds Merging Method for Rapid Processing to Generate Earthwork Site Model

Soonwook Kwon, Mi Na Lee, Moon Joo Lee, Myungjin Chae, Junbok Lee
Pages 963-968

As a continuation of the authors’ research presented in previous years (ISARC), these authors focus on the processing aspect of the 3D terrain models acquired from heterogeneous 3D scan sources. This includes a revision of the authors’ ICP-based merging algorithm to achieve better accuracy in the ever-changing shape of an earthwork site with acceptable penalty in speed, and the introduction ...

Keywords: Registration, 3D Point, Automatic Construction

Study on Modeling and Control of Excavator

Le Quang Hoan, Chan Se Jeong, Hack Sun Kim, He Lim Yang, Soon Yong Yang
Pages 969-974

An excavator is a typical hydraulic heavy-duty human-operated machine used in general versatile construction operations, such as digging, carrying loads, grounding and dumping loads. However, operating excavators in the hazard environment such as earthquake, nuclear decomposition etc is not suitable for human to operate on site. Therefore, automation in excavator has been investigated to protect the operators from the harmful ...

Keywords: Excavator, Modeling, Automation, Control, Manipulator

A Fast and Automated Method for Extracting Tunnel Cross-Sections Using Terrestrial Laser Scanned Data

Soohee Han, Hyungsig Cho, Sangmin Kim, Joon Heo
Pages 1013-1018

In tunnel construction, overcut along with undercut estimation is one of the most important factors to be considered before proceeding to the next operation. It is currently analyzed based on sparsely sampled points surveyed using a total station, but not much time is allowed for surveying and analyzing for economic reasons. A fast and automated method is presented to extract ...

Keywords: Terrestrial Laser Scanner, Tunnel, Cross-Section, Point Cloud, Hashing

Hibrid Approach of Cameras and GPS for Displacement Measurements of Super Long-Sapn Bridges

Wonjo Jung, Do Hyoung Shin, SungKwon Woo, Won-jin Park, Sangbin Kim
Pages 1032-1037

In a recent decade, the GPS has been introduced to directly measure the displacements of super long-span bridges. However, due to its high cost, it is not appropriate to apply a number of GPS receivers in a super-long span bridge in order to measure the displacements through the overall bridge. From the limited point-based measurements of the displacement, a mode ...

Keywords: Super Long-span Bridge, Displacement, Digital Camera, GPS, Maintenance

Multi-Disciplinary Design Collaboration for Developing a BIM Model Using a Hybrid Client-Server and P2P Network Model

Hung-Ming Chen; Chuan-Chien Hou
Pages 1061-1066

This paper presents an Internet-based design collaboration of multi-disciplinary teams for the development of a Building Information Modeling (BIM) model. The network allows geographically separated design teams to work simultaneously on a single shared BIM model, using a distributed system to achieve design integration and conflict resolution. A synchronous collaborative design platform for inter-disciplinary collaboration was developed in this study. ...

Keywords: Internet, BIM Model, Collaboration, Multi-discipline, Computer-aided Design

Productivity Improvement in Construction of Onshore Oil & Gas Pipeline Tie in Joints Execution

Ananthanarayanan Kuppusamy; Saravanan Ramar
Pages 1067-1072

One of the economical ways of transporting crude oil or gas over long distances is through onshore pipelines. Construction of onshore pipelines, involves considerable repetitive activities at various stages of the project. Cost incurred in the construction of pipelines depends on the length of the pipeline, the route and the timely completion of the project. One of the difficult areas ...

Keywords: Productivity Improvement-pipeline-“Tie in” Joint, Simulation

Building Information Modeling (BIM)-Based Design of Energy Efficient Buildings

Chung-Suk Cho, Don Chen, Sungkwon Woo
Pages 1079-1084

With the increased awareness of energy consumption as well as the environmental impact of building operations, architects, designers and planners are required to place more consideration on sustainability and energy performance of the building. To ensure most of those considerations are reflected in the building performance, critical design decisions should be made by key stakeholders early during the design development ...

Keywords: Building Information Modeling, LEED, Energy Efficiency, High Performance Building, Scope Definition, PDRI, Whole Building Design

Modeling Deep Beam Strengths with a Genetic Programming System

Hsing-Chih Tsai; Yong-Huang Lin
Pages 1104-1109

This paper proposes a genetic programming system (GPS) to both predict and program deep beam strength. The soft prediction is to provide estimated results for problems and the soft programming is to represent problems with meaningful formulas. In proposed GPS, two models of genetic programming (GP) and weighted genetic programming (WGP) are involved. GP is structured of a tree topology, ...

Keywords: Genetic Programming, Weighted Genetic Programming, Genetic Programming System, Deep Beam Strengths

An Optimization Model for Linear Project Scheduling Considering Multi-Skilled Crews

Shu-Shun Liu; Chang-Jung Wang
Pages 1141-1142

Owing to the characteristics of construction linear projects, work efficiency is always addressed by prior researchers. However, most studies only consider single-skilled crews for linear projects, and the flexibility of multiskilling in construction is neglected. Recently, researchers have reveals that multiskilling in construction can increase the productivity, flexibility, and continuity of work, this study therefore proposed a duration optimization mode ...

Keywords: Linear Project Scheduling, Multi-skilled, Constraint Programming

Performance Evaluation Model of the Client's Matrix Organization for a Design Project

Wei Chih Wang, Yueh Hua Lin, Chu Hsuan Chung, Ming Tsung Lee, Chia Li Lin
Pages 1143-1148

Conducting a design project of a high-tech facility requires various specialties and rigorous user needs provided from the facility client. Sometime, project client will form a matrix organization with several interrelated functional and projectized divisions to decide those requirements and needs. However, an ill-defined matrix organization very likely causes late and indefinite decisions. Consequently, poor performance of design arises. Identifying ...

Keywords: Design Delays, Matrix Organization, Decision Making Trial and Evaluation Laboratory Technique (DEMATEL), High-tech Facility Design Project

Stage-Gate Process Integrated Risk Management Framework for Overseas LNG Plant Projects

Hwa-Uk Hong, Woo-Sik Jang, Seung H. Han, Kyeong-Ho Chin
Pages 1151-1156

The demand of Liquefied Natural Gas (LNG) is on a steady increase, and the estimation of world LNG consumption will be doubled by 2030 compared with 2005. In the wake of increasing demand, numerous LNG plant projects are under construction and many new projects are in the planning stage. However, since there are limited numbers of companies that have a ...

Keywords: Liquefied Natural Gas (LNG), Risk Management Framework, Stage-gate Process, Design Phase

Computational Intelligence Estimation of Natural Background Ozone Level and its Distribution for Air Quality Modelling and Emission Control

Herman Wahid, Q. P. Ha, H. Nguyen Duc
Pages 1157-1163

Background ozone, known as the ozone that occurs in the troposphere as a result of biogenic emissions without photochemical influences, has a close relationship with human health risk. The prediction of the background ozone level by an air quality model could cover a wider region, whereas a measurement method can only record at monitoring sites. The problem is that simulation ...

Keywords: Background Ozone, Air Quality Modelling, Radial Basis Function, Spatial Distribution

Developing Bridge Monitor Platform Using GPS and Communication Technology

K. C. Chang, H. P. Tserng, K.W. Weng, Y. W. Chen, H. T. Tseng
Pages 1172-1177

In order to maintain security of the bridge and prevent life and property losses caused by earthquakes, typhoons, erosion and other disasters, it is worthwhile to explore the installation of monitoring and management system for bridges. However, in the current bridge management process, most of the discussion is divided into two parts: superstructure and substructure. In this research, the Wireless ...

Keywords: Bridge Disaster Prevention and Management, Real-time Monitoring, Wireless Sensor Network, Disaster Warning

Avoidance of Earth Obstacles for Intelligent Excavator

Jangho Bae, Chang Seup Lee, Daehie Hong
Pages 1184-1189

In this paper, we develop an algorithm for avoidance of earth obstacles using model-reference impedance control for autonomous excavator. There have been many research in the past regarding autonomous excavation, which were only concerned about position control, force control and path generation. However in order to apply the control system or algorithm to the actual autonomous excavation, it is essential ...

Keywords: Autonomous Excavator, Impedance Control, Avoidance of Earth Obstacles

A Novel Bayesian Network Approach for Engineering Reliability Assessment

Sou-Sen Leu; Quang-Nha Bui
Pages 1190-1195

Bayesian network (BN) learning is difficult task due to the limitation of available data in most engineering fields. On the other hand, BN which constructed bases on experts’ judgments is hard to evaluate and often inaccurate. In this work we introduce a novel method called expert-based structural EM (Ex-SEM) for Bayesian network construction which combines limited objective data and experts’ ...

Keywords: Bayesian Network, Structural Learning, Expert Knowledge, Reliability Assessment

An Extended Hand Movement Model for Haptic-Based Remote Operation of Infrastructure Maintenance Robots

Pholchai Chotiprayanaku, Dikai Liu, Gamini Dissanayake
Pages 1196-1202

When human operator is in the control loop of a robotic system, which operates in unstructured, complex and dynamic environments such as those in construction and steel bridge maintenance, human factors will have significant effect on the operational performance and control of the robot. This paper aims to investigate this effect and develop efficient methods for operational performance improvement. An ...

Keywords: Human-Robot Interaction, Haptic Interface, Human Factor, Steel Bridge Maintenance Robot

Automatic Construction Quantity Calculation System

Ying-Hua Huang; Chen-Yang Lin
Pages 1223-1224

The current ways to determine construction material quantities: calculating manually or using evaluation computer software, are time consuming and lack of accuracy. This study proposes an automatic calculation system to compute construction material quantities using a three dimensional architecture model based on CAD image files. The proposed system reduces the errors produced by manual input, increases the accuracy of calculated ...

Keywords: Material Quantity, Construction, 3-D Model, Automation System

Robust Control of Hydraulic Actuator Using Back-Stepping Sliding Mode Controller

Jeongju Choi
Pages 1261-1266

To develop an unmanned automatic excavator system the control performance of hydraulic actuators should be guaranteed. However, hydraulic actuators with single rod cylinder have inherently severe nonlinearities that significantly affect to the command following performance of end-effect. PID control system widely used in industries is not proper to compensate the nonlinearities and it is difficult to cancel the unexpected disturbance. ...

Keywords: Excavator, Hydraulic System, Back-stepping Controller, Sliding Mode Controller

Development Of CBR-Based Road Construction Project Cost Estimation System

Tai Kyung Kang, Wonyoung Park, Yoo Sub Lee
Pages 1314-1319

Compared with the method of predicting the detailed construction cost based on the information of the detailed quantities derived from the completed work drawings and specifications, the method of predicting the approximate estimate based on facility specification or approximate design information, etc. at the stage before the drawings and specifications are completed tends to rely greatly on the subjective judgment ...

Keywords: Approximate Estimate, Approximate Quantities, Case Based Reasoning (CBR)

Fuzzy Based Condition Assessment Model Prototype of Middle And Small-Size Buildings

Hyeon Wook Jo, In Su Jung, Chan Sik Lee
Pages 1330-1331

The safety diagnosis of buildings is very important for continuous maintenance of them. However, the current safety and precision safety diagnosis in maintenance have focused on inspecting the first and second grade facilities. Considering that middle and small-size buildings except for the first and second account for 99.2% of whole buildings, the safety diagnosis of middle and small-size buildings should ...

Keywords: Middle and Small-Size Buildings, Safety Diagnosis, Fuzzy, Condition Assessment

Optimized Earthwork Planning Methodology for Land Development Projects

Hyeongi Baek; Jongwon Seo
Pages 1332-1333

An earthwork for land development projects, which possesses around 20% of the total project cost, consists mainly of simply repetitive tasks such as loading, hauling, dumping, and returning and depends largely on heavy construction machines. The goal of earthwork planning is to minimize the project cost and duration by determining soil allocation, equipment configuration, and haul route. Due to the ...

Keywords: Earthwork Planning, Optimization, Simulated Annealing Algorithm, Land Development Project

Optimum Performance Evalution of Reinforced Spring Suspension System Using Nonlinear Analysis Method

Byeong-Soo Kim; Byung-Young Moon
Pages 1336-1340

Air springs are prevalently used as suspension in train. However, air springs are seldom used in automobiles where they improve stability and comfort by enhancing the impact-relief, breaking, and cornering performance. Thus, this study proposed a new method to analyze air springs and obtained some reliable design parameter which can be utilized in vehicle suspension system in contrast to conventional ...

Keywords: Suspension Spring, Rubber Characteristics, Reinforcement Cord, Nonlinear Mechanics, Finite Element Analysis, Optimum Evaluation

Prediction Model for Hoisting Time Using Luffing-Type Crane for High-Rise Building Construction

Yoonseok Shin, Chang-Yeon Cho, Jung-Yeol Kim, Heebok Choi, Moon-Young Cho
Pages 1341-1342

Hoisting planning for systematic and efficient vertical transportation is one of the key factors for successful completion in high-rise building construction. However, despite this importance, minimal research has been carried out for predicting hoist time, which is a key player in hoisting planning. Therefore, this study proposed a prediction model for vertical hoisting time using a luffing-type crane. From the ...

Keywords: Hoisting Time, Luffing-type Crane, High-rise Building

Scheduling Model for Multiple Constrution Projects

Seung Hoon Lee, Yumi Woo, Hei Duck Lee, Yong Chil Seo
Pages 1343-1344

From the end of 20th century, developed countries are making efforts to regenerate old downtown areas of their cities. Urban regeneration program can be simplified as the demolition of existing deteriorated buildings and the construction of multiple new facilities. To maximize the benefit of the construction program within the restricted time and the limited financial resources, each project needs to ...

Keywords: Scheduling, Multiple Projects, Cash-flow, Optimization

Data Acquisition for Stochastic Localization of Wireless Mobile Client in Multistory Building

Tomohiro Umetani, Tomoya Yamashita, Yuichi Tamura
Pages 1364-1369

This paper describes a method for the localization of wireless mobile clients in multistory buildings using a wireless LAN system. The method uses public wireless LAN access points for users and robots that are settled at many places in a multistory building. Data on the physical position of personal electronic devices or mobile robots are important in information services and ...

Keywords: Wireless LAN, Localization, Multistory Building, Data Acquisition, Stochastic Estimation

The Effect of the Quality of Apartment Houses on the Residential Satisfaction and Corporation Performance

Hae Lee Yim, Byeong Hun Lee, Ju Hyung Kim, Jae Jun Kim
Pages 1394-1400

This study is to find out residential satisfaction, moreover, the effect in corporation performance based on a previous research of the influence on consumers’ behavior by consumers’ recognition of the quality of residential environment of apartment house. Further, the empirical study provides a theoretical model comprised of 10 research hypotheses of the relationship of each theory variable that is based on ...

Keywords: Apartment Housing, Housing Satisfaction, Prediction Model, Corporation Performance

Dynamic Design of Hydraulic Pressure Control Valve of Active Suspension System Using Experimental Method

Choon-Tae Lee; Byung-Young Moon
Pages 1434-1439

The controllability of active suspension system in automotive vehicle is strongly affected by the performance of pressure control valve. In this study, a new mathematical model and simulation model of the hydraulic pressure control valve of automotive is proposed. And proposed model of the hydraulic pressure control valve are analyzed. The effects of the main design parameters variations on the ...

Keywords: Hydraulic Mechanics, Mathematical Model, Design of Servo System, Signal Processing, Hydraulic Valve, Active Suspension System, Vehicle Dynamics

Space Planning with Green Perspective

Yingchun Hsu
Pages 1470-1471

As technology progresses and software developer’s increasing effort, we can foresee that the bi-directional procedures between design/analysis platforms will be shorten dramatically over time to improve the efficiency of building model analysis. But how about the decision-making phase that even before models been built for analysis? By adopting the Space Dynamic Behavior algorithm, a new “green, energy-saving” layer of information ...

Keywords: Space Planning, Space Dynamic Behavior, Form Generation, Bubble Diagram, Energy Saving

Design of Mooring Fittings of Ship Epqipment by Using The Finite Element Method

Jung-Yong Han; Byung-Young Moon
Pages 1480-1485

Mooring and Towing Fittings mean various devices and fittings to safely fasten vessels to quays, jetties, sea- floating buoys. etc. They include devices such as mooing winches and capstans, fitting such as chocks, fairleads, guide rollers, bollards, and bitts, and the seats and reinforced parts of vessels such fittings are installed. They also include ropes and chains used for mooring ...

Keywords: Design Of Ship Equipment System, Structural Safety, Fitting Device, Design of Mooring System, Chock, Standardization Model, Equipment Test, Safety Working Load

Analysis of Success Factors in Construction IT Convergence

JungA Lim, Soonwook Kwon, Sunghoon Park, Mina Lee
Pages 1511-1512

Construction-IT convergence is necessary considering the challenges faced with the construction industry such as reduction of carbon bi-products and energy saving. To promote the convergence, having a proper business model for bringing the best services to its clients is very important. This study aims to present an Evaluation Index, as well as its process, for construction IT convergence projects, which ...

Keywords: Construction-IT, Convergence, Evaluation Model, Key Success Factors

2010 Proceedings of the 27th ISARC, Bratislava, Slovakia 2010

Realistic 3D Modeling System for Remote Controlled Construction Machines: Multi-Sensor Fusion Based Approach

Hyojoo Son, Changwan Kim
Pages 99-107

An important feature of remote controlled machines is the realistic three-dimensional (3D) modeling system for providing information feedback to the remote operator and facilitating remote operation. This paper describes a system for creating realistic 3D models of actual construction environments for the purpose of improving and extending the capabilities of interactive visual feedback between the operator and remote controlled construction ...

Keywords: Construction machine, flash ladar, interactive visual feedback, realistic 3D modeling, remote control, sensor fusion, stereo vision system

Design of Haptic Device for Excavator with Pressure Transmitter

Dongnam Kim, Kyeong Won Oh, Namhoon Kim, Baeksuk Chu, Daehie Hong, Yoon Ki Kim, Suk-Hie Hong
Pages 147-154

The number of dismantling sites for buildings has been rapidly increased and these processes are very dangerous. So many research papers have been published addressing the development of a remote controller for the dismantling equipments. In this paper, a novel concept of applying haptic control is proposed for the remote control of excavator-like dismantling equipment. As a haptic device system, ...

Keywords: Excavator Control, Haptic Device, Dynamics, Parameter Estimation

Nano-to-Meter-Scale Automated Building

Danijel Rebolj, Martin Fischer, Drew Endy, Thomas Moore
Pages 175-182

Development of nano and biotechnologies encouraged us to develop a concept of automated building, which will significantly reduce the many negative impacts of traditional construction on the environment. The paper describes the concept of Nano- to meter-scale building, a new way of building, which unfolds from the nano into the meter range. The concept is based on bionanorobots, producing building ...

Keywords: Automated building, nanotechnology, biotechnology, Building Information Model (BIM)

FPGA-Based Ubiquitous Computing Intelligence for Robotic Formation Control

Ying-Hao Yu, S. Kodagoda, Q.P. Ha
Pages 193-201

Ubiquitous computing (UC) has been an important stream in distributed computing, which is nowadays recognized as an attractive vision in ambient intelligence (AmI) technologies and home robotic systems. This paper, focusing on our work on the application of field programmable gate array (FPGA) in mobile robotics, presents a prototypical computing node of a ubiquitous robot (Ubibot) for indoor multiple robot ...

Keywords: Ubiquitous computing, FPGA, robotic formation

A Case Study of Building Performance Analyses Using Building Information Modeling

Salman Azhar, Justin W. Brown, Anoop Sattineni
Pages 213-222

"The first decade of the twenty first century has witnessed a tremendous increase in the demand of sustainable buildings mainly due to mounting energy costs and growing environmental concerns. The most effective decisions related to the sustainable design of a building can be made in the planning and design phases. Since Building Information Modeling (BIM) allows for multi-disciplinary information to ...

Keywords: Sustainability, Green building design, Building Information Modeling, Building performance analyses

A Study of Wireless LAN Based Working Area Estimation

Soungho Chae, Takahiro Nakamura
Pages 233-242

A wireless LAN (local area network) was proposed as a means of determining location at a construction site. The high prevalence of equipment and facilities was offered as an advantage compared to existing methods. An experiment was performed to collect RSSI (radio signal strength indications). From the results, variations were shown in RSSI from radio signal transmission conditions, and the ...

Keywords: location information, working area, wireless LAN, RSSI

Development of BIM Standard Database System for the Remodeling of Deteriorated Apartment

Dong-Gun Lee, Hee-Sung Cha, Sik Kim, Hae-Doo Seo
Pages 243-254

A remodeling project for deteriotated housing stocks tends to be an important issue in resources recycling because it does not destruct whole building but destruct particularly. However, compared with new building projects, remodeling project has disadvantages in adding destruct work and repair and rehabilitation work as well as causing difficulty in decision making from diverse project stakeholders. BIM as total ...

Keywords: Remodeling, BIM, Old Aged Apartment

Model-Based 3D Tracking in Multiple Camera Views

Itai Katz, Kamel Saidi, Alan Lytle
Pages 273-279

We present a method for tracking objects in 3D by comparing views from multiple video cameras against a 3D model. Camera-based object tracking is a vast field that until recently has been limited to the 2D (image) domain. With the falling cost of sensors in recent years, the research community has been shifting its focus to 3D tracking using networks ...

Keywords: Camera network, tracking, multiple cameras, 3D

Work Efficiency Evaluation Model

Shigeomi Nishigaki, Katsutoshi Saibara, Shigeo Kitahara, Masaharu Moteki
Pages 336-345

As for a backhoe, generally, the work efficiency is utilized as one of terms to calculate the work capacity. As the case stands, evaluation metrics such as performance of work tasks, operational skill levels and energy-saving effects are usually and frequently represented by qualitatively volumetric indices of capacity. This paper proposes the work efficiency evaluation model that quantitatively visualizes work ...

Keywords: Work control factor, work time factor, workability factor, commentary information

Techniques for Tracking RFID Tags in a BIM Model

Anoop Sattineni, Salman Azhar
Pages 346-354

Academicians and industry professionals have demonstrated the use of Radio Frequency Identification (RFID) Tags in construction applications in the past few years. Recently building information modelling (BIM) technology is emerging as the industry standard in the architecture, engineering and construction (AEC) sector. This paper combines the two technologies to monitor the movement of RFID tags in a BIM environment. Real-time ...

Keywords: Radio Frequency Identification, Building Information Modelling, Tracking

A Comparative Study on Color Model-Based Concrete Image Retrieval in Different Invariant Color Spaces

Hyojoo Son, Changmin Kim, Chagwan Kim
Pages 355-363

Construction progress monitoring has been recognized as one of the key elements that lead to the success of a construction project. The first requirement for effective progress monitoring is the collection and analysis of construction progress information. Through the use of image retrieval, progress information about structural components can be derived from the construction site image. In this paper, the ...

Keywords: Color invariant, color segmentation, image processing, Mahalanobis distance, object recognition

Radial Basis Function Neural Network Metamodelling for 2D Resistivity Mapping

Herman Wahid, Hiep Nguyen-Duc, Q.P. Ha
Pages 364-373

Since the last few decades, electrical methods have been widely used in geophysical surveying to obtain high-resolution information about subsurface conditions. Resistivity is an important parameter in judging the ground properties, especially detecting buried objects of anomalous conductivity. Electrical DC resistivity sounding is the commonly used technique to obtain the apparent 2-D resistivity of the region under investigation. Acquiring the ...

Keywords: Inversion problem, 2D resistivity, radial basis function, metamodelling

Merging Point Clouds from Heterogeneous 3D Scanners for Fast Update of an Earthwork Site Model

Seungwoo Jung, Soonwook Kwon, Hoki Kim, Seokjoon You, Moonyoung Cho
Pages 374-381

In earthwork sites, its terrain shapes are changing continuously as the work proceeds. If someone wants to grab three-dimensional geometry data of such sites, currently available technologies such as 3D laser scanners are unable to collect reasonably precise data in pseudo-real time (i.e., 1-10 scans per second). To tackle the problem, the authors took ‘dual scanners’ approach, where low-speed (yet ...

Keywords: Laser Scanner, Stereo Vision, Shape Registration, Intelligent Excavator, Earthwork

Enhancing Bid Decision Making in the Construction Industry: A New Multi-Criteria Prospect Model

Min-Yuan Cheng, Chia-Chi Hsiang, Hsing-Chih Tsai, Hoang-Linh Do
Pages 410-419

In the construction industry, government agencies and private sector clients typically adopt competitive bidding to determine contract awards. Two critical decisions that bidders face in competitive bidding include those regarding (1) whether or not to submit a bid and (2) what markup scale to use on the submitted bid (if the answer to the first is in the affirmative). This ...

Keywords: Bidding Decision Making, Multi-Criteria Prospect Model, Cumulative Prospect Theory, Fuzzy Preference Relations

Project Data Warehouse Management with Multivariate Analysis

Jui-Sheng Chou, Hsin Wang, Hsien-Cheng Tseng
Pages 430-439

Many studies have generated cost estimating relationships (CERs) for transportation projects via data analysis. Some studies collected data from databases, while others sourced data from conventional paper-based formats. When cost data were not in a consistent format, many studies failed to discuss the streamlining of pattern recognition. This study adopts a standard procedure for identifying CERs for transportation projects. A ...

Keywords: Data Warehouse, Multivariate Analysis, Estimation, Project Management, Transportation

Machine Selection Optimizing Method for Building Processes with Software Suport

Jozef Gašparík, Marián Gašparík
Pages 440-449

Getting fuels, economizing with them and effective utilization of them belong to the most complex problems of the present and future. Energy saving is one of the most important environment factor in construction company with developed a implemented Environment Management system (EMS) according to ISO 14001. We tried in contribution to refer to one of the ways as early in ...

Keywords: Construction, machines, optimizing, energy consumption

Estimation of Bridge Life Cycle Maintenance Costs Using Reliability-Based Model

Rong-Yau Huang, I-Shiang Mao
Pages 450-460

Bridge life cycle maintenance costs can be estimated more accurately if the deteriorating and maintaining process can be simulated objectively. This paper first proposed a reliabilitybased model for prediction of deterioration. The performance of bridge elements was quantified by the reliability index. A stochastic approach was then introduced and the probabilities for what action should be taken at any time ...

Keywords: Bridge, deterioration, reliability, cost estimation

Modelling of the Building Process in Construction Planning and Management Using I.T.

Cenek Jarský
Pages 461-470

The paper describes the main principles and results of the integrated cost estimation and project management microcomputer system developed in the last years on the base of the spatial, technological and time analysis of the building process with use of the methodology of the construction technology design. This expert system is based on quick modelling of the building process by ...

Keywords: Construction technology, building process model, network analysis, project management

Contextual Information Delivery on Construction Sites

Hiam Khoury, Vineet Kamat
Pages 480-489

The information-intensive nature of construction projects requires site personnel to have ondemand access to several pieces of construction project data (plans, drawings, schedules, specifications, etc). This paper evaluates the capability of the CIMsteel Integration Standards (CIS/2) product model, and project information systems such as Microsoft Access databases for improving traditional, and manual information retrieval processes by automatically retrieving contextual project ...

Keywords: Construction, information retrieval, BIM, databases

Using Information Delivery Manual (IDM) for Efficient Exchange of Building Design Information

Changhwan Kim, Soonwook Kwon, Seokjoon You, JungA Lim
Pages 490-497

In the new era of computerized building information, communication in a design and construction project demand transactions of large volume building model data containing various engineering domains, which causes increased costs in handling large data and communication problems due to poor understanding about which data should be shared. In this study, the authors converted Information Delivery Manual, which is a ...

Keywords: IDM (information delivery manual), Industrial Foundation Classes, Object-oriented, Relational Database, Information Model

Bridge Information Modelling (BrIM) and Model Utilization at Worksites in Finland

Teemu Kivimäki, Rauno Heikkilä
Pages 505-513

The paper introduces and discusses bridge engineering, design and construction R&D results in a Finnish bridge cluster consortium (5D-Bridge). Development of national bridge information modelling guideline in Finland is introduced, as well as latest developments in 3D modelling in practice. A library of frequently used bridge components was developed to the use of the Finnish bridge cluster. Also the latest ...

Keywords: 3D, bridge, information, modelling

Digital Competencies in Process of Creating the Knowledge Company in Construction Sector

František Mesároš, Peter Mesároš
Pages 544-550

This study is focused on core competencies for lifelong learning for the knowledge society, especially on the digital competence. The aim of study is twofold. First, to examine the level of the digital competence in sample of graduate university students. Second, to give a proposal of procedure for measuring the level of competence in construction company. The results of research ...

Keywords: Key competencies, digital competence, measurement

Use RFID to Establish Site Building Material Management System

Yan-Chyuan Shiau, Ming-Teh Wang, Meng-Jia Yeh, Shang-Fong Chen
Pages 561-570

The demands of building materials are often schedule-orientated during execution of a construction project. In this study, RFID, ER Model, database and IT environment were used to develop the “Site Material Management System”. This system integrates site material control which assisted construction companies to execute material management on construction site. The system gathered related information such as activities, materials, required ...

Keywords: RFID, material management

Exploring Underlying Patterns of Emergent Problem-Solving in Construction with TRIZ

Pei-Lun Chang, Wen-Der Yu, Shao-Tsai Cheng, Shun-Min Lee
Pages 607-616

Construction engineers and managers are dealing with emergent problems in their daily works. The problem-solving experiences, usually recorded as historical Lessons-Learned Files (LLFs), accumulated from previous projects are applied repeatedly in similar problems encountered. Such methodology is very similar to the Theory of Inventive Problem Solving (TRIZ) widely adopted in technology innovation fields. The similarity inspires the authors of this ...

Keywords: Problem-solving, Knowledge management, TRIZ

Establishing the KM-Oriented BPR Model for Construction Firm - A Case Study

Min-Yuan Cheng, Hsien-Sheng Peng, Chih-Min Huang, Yu-Han Chang
Pages 617-626

This study proposed a KM-oriented BPR model to assist managers to implement the knowledge management in the construction firms. Two philosophies, namely the (1) Business Process Reengineering (BPR) and the (2) Knowledge Management (KM), were combined in the addressed KM-oriented BPR model to ensure the KM operations can be merged with the business processes. That is, by using the proposed ...

Keywords: Knowledge Management (KM), Business Process Reengineering (BPR), construction firm, Architecture of Integrated Information System (ARIS)

Data Preprocessing Method for Cost Estimation of Building Projects

Sae-Hyun Ji, Moonseo Park, Hyun-Soo Lee, You-Sang Yoon
Pages 634-643

All construction projects have unique characteristics that must be considered during cost estimating and checking activities. Especially in the conceptual and schematic design stages, owners require precise cost estimates than their information providing. However, information related to the project scope is more likely to change in the early design phases in response to ongoing scope changes. Also, as only minimal ...

Keywords: Database, cost, estimate, preprocessing

New Service Development Model for Property Management Company

Ming-Hsiu Tsai, Kuan-Ju Wang
Pages 644-653

To enhance the service quality of property management companies (PMCs), this study focuses on no service quality evaluation but the new service development so that the companies can design new and critical services to meet consumers’ needs. Service positioning and design are two primary issues for new service development. Accordingly, a three-dimensional property management service development architecture, which describes service ...

Keywords: Property management, service map, service blueprint, service design

Automated System for Productivity Assessement of Earthmoving Operations

Adel Alshibani, Osama Moselhi
Pages 684-693

Onsite data collection is essential for estimating onsite productivity, measuring project performance, and tracking large earthmoving operations. This paper presents a web-based system, developed for estimating onsite productivity and tracking earthmoving operations. The paper briefly describes the main components of the developed system and focuses primarily on estimating onsite productivity .The proposed system utilizes spatial technologies including GPS and GIS ...

Keywords: Earthmoving, automated data collection, GPS, and productivity

The Helix-Tower by Konrad Zuse Automated Con- and Deconstruction

Thomas Bock, Nora Eibisch
Pages 713-722

In this Paper we present a continuously extendable and retractable tower construction: The Helix-Tower by Konrad Zuse. From 1989 onwards Zuse worked on the design of the heightadjustable tower. In 1993 Zuse had accomplished the prototype HT1 on a 1:30 scale to test the construction. In 1992 he started sketching up a second model (HT2) on a 1:10 scale, which ...

Keywords: Automated con- and deconstruction, Robot Oriented Design, Helixturm

2009 Proceedings of the 26th ISARC, Austin, TX, USA. 2009

Development of Warning System for Preventing Collision Accident on Construction Site

Soungho Chae
Pages 55-60

This paper describes the development of a personal warning system for preventing construction site accidents involving workers and heavy equipment. The required functions were established on the basis of a past accidents model. The system was designed to send a warning via wireless from a server computer to a worker and relevant parties according to estimation of distance between worker ...

Keywords: Safety management, Collision accident, Warning, RFID, Wireless device

Human Motion Analysis Using 3D Range Imaging Technology

Ray Gonsalves, Jochen Teizer
Pages 76-85

Human motion analysis and tracking are a significant research area in the domain of computer vision. Existing systems of today focus on detection of human targets by analyzing their movements in order to recognize the different activities performed by them. Our research work mainly focuses on using detection and tracking of human targets using a 3D range image camera for ...

Keywords: Range Image Processing, Real-Time, Safety, Detection, Tracking, Surveillance, Star-Skeleton Model, Construction Work Zone

Integrating Automated Data Acquisition Technologies for Progress Reporting of Construction Projects

Samir El-Omari, Osama Moselhi
Pages 86-94

Controlling construction projects necessitates controlling their time and cost in an effort to meet the planned targets. Management needs timely data that represent the status of the project to take corrective actions, if needed. This paper presents a control model that integrates different automated data acquisition technology to collect data from construction sites required for progress measurement purposes. Current automated ...

Keywords: 3D laser scanning, photogrammetry, RFID, Tablet PC, Bar Coding progress reporting, data acquisition, automation

An Analytic Model Combining Monte Carlo Simulation and PSO in Estimating Project Completion Probability of Project Durations and Costs

Henyi Jen and Yu-chiun Chen
Pages 95-100

Project uncertainties are always the reason of project delay or budget overrun. Especially in tight schedule or project crashing, it is hard to balance both project duration and costs. Past research focused on the optimal schedule and costs, without knowledge of its on-time, within-budget completion risk. This research provides an analytical model by first using PSO heuristic algorithm to find ...

Keywords: Time-cost trade-off problem, PSO, Monte Carlo Simulation, Probability Matrix

Development and Application of a Systematic Innovation Procedure for Construction Technology

Wen-der Yu, Chih-Ming Wu and Teen-wei Huang
Pages 149-159

Technology innovation has been recognized as a main driver for the advancement of construction industry. Due to the lack of systematic innovation procedure, the advancement of construction technologies has been slow compared with the other industries, e.g., ICT and Biotech Engineering. This paper proposed a Systematic Technology Innovation Process (STIP) for innovation of construction technologies. The STIP method integrates several ...

Keywords: Technology innovation, patent analysis, TRIZ, process model

A Spatiotemporal Approach to Managing Utility Work Schedules

Chien-Cheng Chou, Yi-Ping Chen and Chien-Ming Chiu
Pages 160-168

As more and more utility installation and/or maintenance activities are located in highly congested urban roadways, frequent pavement utility cuts in such areas may cause more traffic disruption as well as deteriorate pavement life and quality. Utility owners normally need to obtain permits from public road authorities before commencing utility activities; however, public road authorities in Taiwan currently just issue ...

Keywords: Pavement, Utility cut, Utility permit, Spatiotemporal objects database, Temporal database

Prediction of Diaphragm Wall Deflection in Deep Excavations Using Evolutionary Support Vector Machine Inference Model (ESIM)

Min-Yuan Cheng and Yu-Wei Wu
Pages 176-182

Problems in deep excavations are full of uncertain, vague, and incomplete information. In most instances, successfully solving such problems depends on experts' knowledge and experience. The primary object of this research was to propose an "Evolutionary Support Vector Machine Inference Model (ESIM)" to predict wall deformation in deep excavation in Taipei Basin. ESIM is developed based on a hybrid approach ...

Keywords: SVM, fmGA, Diaphragm Wall; Excavation; Deflection

Beyond Knowledge Management Platform: Design of Organizational Controls in Managing Knowledge

S. P. Ho, Y. Hsu, E. Lin
Pages 191-198

Knowledge has emerged or been regarded as the most strategically significant resource of the firm. From the resource-based view (RBV), the integration of individuals' specialized organizational capability through knowledge management (KM) has been considered crucial to the creation and sustainability of competitive advantages. Recently, KM has drawn immense attentions from researchers and practitioners in many industries and has become increasingly ...

Keywords: Knowledge management, Knowledge sharing, Organizational controls, Game theory, Case study.

Applying Neural Network Ensemble Concepts for Modelling Project Success

Yu-Ren Wang, Yi-Jao Chen and C.F. Jeffrey Huang
Pages 199-205

Researchers have been studying early planning process since the early 1990's and results from these researches suggest that projects with more early planning efforts are more likely to succeed. This study intends to employ neural networks to build credible models linking preproject planning and project success. Preproject planning status as measured by Project Definition Rating Index (PDRI) is set as ...

Keywords: Preproject Planning, Project Success, ANNs Model

A Research Model for Architectural Meetings to Support the Implementation of New Building Technologies through Collaboration of Brainpower

Frans J.M. van Gassel, Ger J. Maas and Johanna E.M.H. van Bronswijk
Pages 206-212

Implementing new technologies in the domain of "Robotics and Automation in Construction" is necessary to enhance the values for clients and society. The technologies are available but implementing them is the coming challenge. Building technologies are not used exhaustively or intelligently. In the manufacturing industry of complex products collaboration of brainpower through involvement of all stakeholders has resulted in a major ...

Keywords: building technologies, architectural meetings, collaborative brainpower

Basic Study of Smart Robotic Construction Lift For Increasing Resource Lifting Efficiency in High-Rise Building Construction

Chang-Yeon Cho, Soon-Wook Kwon, Junbok Lee, Suk-Jun You, Sang-Yoon-Chin, Yea-Sang Kim
Pages 266-277

Most high-rise buildings are erected in downtown areas, where on-site storage space for construction materials is typically insufficient due to limited spaces. Just-In-Time (or JIT) concept has been adopted so that necessary stock materials and storage spaces can be reduced; for high-rise buildings, however, transporting materials vertically using lifts still poses significant efficiency because its efficiency drops exponentially as the ...

Keywords: Smart Lift, Robotic Construction Lift, High-rise building construction, operation optimization, concept model

Design of Second-Order Sliding Mode Controllers for MR Damper-Embedded Smart Structures

H. Dalvand, H. T. Nguyen, Q. P. Ha
Pages 332-340

This paper presents the design of second-order sliding mode controllers for semi-active control using magneto-rheological (MR) dampers. The approach can be useful in applications involving shock absorbers but here our main concern is the suppression of building vibrations induced by dynamic loadings such as earthquakes or strong winds. The MR dampers have been of increasing interest in structural control as ...

Keywords: No keywords

Motion Control of Excavator with Tele-Operated System

Dongnam Kim, Kyeong Won Oh, Daehie Hong, Yoon Ki Kim, Suk-Hie Hong
Pages 341-347

The number of dismantling sites for buildings has been rapidly increased and these processes are very dangerous. So many research papers have been published addressing the development of a remote controller for the dismantling equipments. In this paper, a novel concept of applying tele-operated device is proposed for the remote control of excavator-like dismantling equipment. As a tele-operated system, this ...

Keywords: Haptic Device, Excavator, Inverse Kinematics, Dismantling Process, Hydraulic System

Application of Appropriate Technologies to 3D Local Terrain Modeling in Real-time for Intelligent Excavating System (IES)

Byung-In Yu, Hyun-seok Yoo , Young-suk Kim, Jong-won Seo and Seungwoo Han
Pages 357-364

Automation in construction is considered as one of solutions to fundamental problems which the construction industry has confronted. The development of real-time 3D local terrain modeling is the core methodology of achievement of IES (Intelligent Excavating System) which is a mega-size research concerning automation in construction. Stereo vision technique was selected as an appropriate method to achieve 3D terrain modeling ...

Keywords: automation, stereo vision, 3D, terrain model

Rapid 3D Object Modeling Using 3D Data from Flash LADAR for Automated Construction Equipment Operations

Hyojoo Son, Changwan Kim and Yoora Park
Pages 372-378

Automated recognition and modeling of 3D objects located in a construction work environment that are difficult to characterize or are constantly changing is critical for autonomous heavy equipment operation. Such automation allows for accurate, efficient, and autonomous operation of heavy equipment in a broad range of construction tasks by providing interactive background information. This paper presents 3D object recognition and ...

Keywords: 3D object modeling; 3D object recognition; construction automation, construction heavyequipment, flash LADAR, range image segmentation

Construction Automation Process Development – Advancing the Collaboration between Finland and California

Rauno Heikkilä, Ty A. Lasky, Kevin Akin
Pages 389-396

This paper presents the total process model of automation for construction and maintenance, with a focus on roads and bridges. This multi-phase model includes: initial measurements, product modeling and design, construction control and machine guidance, quality assurance and control, and lifecycle operations and maintenance. The paper then provides detailed discussion of current applied research results from Finland and California. The ...

Keywords: No keywords

Path Re-Planning of Cranes Using Real-Time Location System

Cheng Zhang, Amin Hammad and Homam AlBahnassi
Pages 412-419

The numbers of reported accidents related to cranes are increasing during the past 10 years. Although simulation and visualization software are available for path planning of cranes, the high dynamic characteristics of on-site conditions often require re-planning the crane’s path to ensure safety and efficiency. Any unpredicted objects on site should be detected and tracked in real time and the ...

Keywords: No keywords

A Data Fusion Model for Location Estimation in Construction

S.N. Razavi and C.T. Hass
Pages 429-436

Materials tracking is a key element in a construction materials management system. Deploying a costeffective, scalable, and easy to implement materials location sensing system in real world construction sites has very recently become technically and economically feasible. The evident drawback of the current costeffective and scalable systems is lack of accuracy and robustness. In this research a data fusion model ...

Keywords: No keywords

Computational Models for Reduction of Quarry Waste for Breakwater Construction Projects

Venkateswara Rao Surati, Koshy Varghese, K. Senthilnathan
Pages 437-444

Construction of Breakwater requires large volumes of appropriately graded rock. Geological characteristics and blasting practices at the quarry determine the gradation of the quarried rock. If the gradation of quarried rock does not meet design requirements, there is wastage of quarried rock or additional cost to reprocess it to meet requirements. This work utilizes mathematical models to forecast the gradation ...

Keywords: Breakwater rock demand, Quarry yield, Blasting parameters, Spreadsheet, Genetic Algorithms

A Component-Based Approach for Generation of 3 Dimensional CAD Models Using a Construction MODEL Component Database

Hung-Ming Chen and Yi-Chi Chu
Pages 460-467

In recent years, three-dimensional visualization technologies have been researched and applied for aiding the operations of design, planning, construction, etc. in construction engineering. A three-dimensional (3D) CAD model of a targeted facility or construction project is a requirement. Due to the uniqueness and custom features of construction products, their 3D models usually have to be built based on basic geometric ...

Keywords: database; Visualization; 3D model; CAD; Virtual Construction

A 3-Dimensional Visualized Approach for Maintenance and Management of Facilities

Hung-Ming Chen and Yu-Hsiang Wang
Pages 468-475

The maintenance and management of facilities is an emerging issue. Decisions on maintenance-related works usually are made based on various types of accumulated historical data, such as design drawings, inspection records, sensing data, etc. There are systems for storing and maintaining such maintenance-related data electronically in database. However, the data accessing mode of these systems is based on text input ...

Keywords: Visualization; Maintenance; Management; Facility; 3D Model

Service-Oriented Integrated Information Framework for Next Generation Intelligent Construction Supply Chain Management

Tae-Hong Shin, Sangyoon Chin, Su-Won Yoon, Yea-Sang Kim, Soon-Wook Kwon and Cheolho Choi
Pages 483-491

It is essential to perform an effective construction supply chain management in large-scale building construction projects. Since 2006, this research consortium has conducted a research project, named Next generation Intelligent Construction Supply chain management (NICS), that develops a process and a system that support an proactive construction supply chain management in real time by taking advantage of ubiquitous sensor network(USN) ...

Keywords: Information Management, SOA (Service-Oriented Architecture), Supply Chain Management, Logistics, Information Technology, Construction Management

Automated Building Information Modeling System for Building Interior to Improve Productivity of BIM-based Quantity Take-Off

Seong-Ah Kim, Sangyoon Chin, Su-Won Yoon, Tae-Hong Shin, Yea-Sang Kim and Cheolho Choi
Pages 492-496

Recently Building Information Modeling (BIM) has been widely used to manage building information throughout the project life-cycle more effectively and efficiently. Particularly in quantity take-off and estimation, BIM-based process is getting more and more attention, and even BIM-based quantity take-off at the most detailed level has been performed in several building projects in South Korea. The practitioners involved in those ...

Keywords: Building Information Modeling (BIM), Three-dimensional CAD model, Quantity Take-off

K-Means Clustering and Chaos Genetic Algorithm for Nonlinear Optimization

Cheng Min-Yuan, Huang Kuo-Yu
Pages 520-526

To reduce the computational amount and improve estimation accuracy for nonlinear optimizations, a new algorithm, K-means clustering with Chaos Genetic Algorithm (KCGA) is proposed, in which initial population are generated by chaos mapping and refined by competition. Within each iteration of this approach, in addition to the evolution of genetic algorithm (GA), the K-means Clustering algorithm is applied to achieve ...

Keywords: Chaos; optimization; K-means clustering; Genetic Algorithm

Sparse Reconstruction and Geo-Registration of Site Photographs for As-Built Construction Representation and Automatic Progress Data Collection

Mani Golparvar-Fard, Feniosky Peña-Mora and Silvio Savarese
Pages 535-543

Most of the current techniques for automating progress data collection promise to eliminate laborintensive tasks associated with manual data collection. A drawback is the necessity to add additional steps to be performed before, during, or after utilization of such technologies. Working with such featureless data and without having semantic information of the scene, geometric-reasoning is problematic and induces estimation errors. ...

Keywords: No keywords

2008 Proceedings of the 25th ISARC, Vilnius, Lituania 2008

Identifying Elements of Enterprise Wide Application Selection Eco-System

Miroslaw J. Skibniewski, S. Ghosh
Pages 0-0

Technology acceptance is a challenge that can be addressed properly if decision makers of technology acceptance are aware of all issues that need to be addressed. Borrowing theory of basic ecology, researchers propose an information technology (IT) ecosystem (IECOS) and identified in the entirety all the elements present at IECOS. The study focuses on identified elements of IECOS borrowing theory of technology acceptance ...

Keywords: Ecology, technology acceptance model, compatibility, usefulness

Web-Based Biometric Mouse Decision Support System for User’s Emotional and Labour Productivity Analysis

A. Kaklauskas, E. K. Zavadskas, M. Seniut, M. Krutinis, G. Dzemyda, S. Ivanikovas, V. Stankevic, C. Šimkevicius, A. Jaruševicius
Pages 69-75

In order to increase the efficiency of employees’ activities, a Web-based Biometric Mouse Decision Support System for User’s Emotional and Labour Productivity Analysis (MDSS-UELPA) was developed by the authors. MDSS-UELPA consists of seven subsystems: Data Capture and Collection Subsystem, Feature Extraction Subsystem, Database Management Subsystem, Model-base Management Subsystem, Equipment Subsystem, e-Self-Reports Subsystem and Graphical Interface. MDSS-UELPA is an online system ...

Keywords: Web-based, Biometric Mouse, Decision Support System for User’s Emotional and Labour Productivity Analysis, Subsystems, Historical Information

Development of a Life Cycle Costing System for Light Rail Transit Construction Projects

Gu-Taek Kim, Kyoon-Tai Kim, Du-Heon Lee, Choong-Hee Han, Hyun-Bae Kim and Jin-Taek Jun
Pages 76-87

The need for Light Rail Transit (LRT) in Korea has substantially increased as a result of the heavy traffic congestion in large cities such as Seoul. In Korea, most of the LRT construction projects have been achieved with the help of private sector investment, and the private sector companies that wished to participate in such projects had to make a ...

Keywords: Life Cycle Cost (LCC), Cost Breakdown Structure (CBS), Light Rail Transit (LRT), Economic Evaluation

Seismic Responses of Civil Structures under Magnetorheological-Device Direct Control

M. T. Nguyen, H. Dalvand, Ying-Hao Yu, Q. P. Ha
Pages 106-112

This paper presents an efficient control strategy for magnetorheological (MR) dampers embedded in building structures to mitigate quake-induced vibrations. In this work, MR dampers are used as semi-active devices, taking the advantages of the fail-safe operation and low power requirement. By using a static hysteresis model for the MR damper, a suitable controller is proposed here for direct control of ...

Keywords: Structural control, MR dampers, semi-active control, seismic response

Measuring and Update of Shape of Pile for Loading Operation by Wheel Loader

Shiegru Sarata; Niriho Kiyachi; Kazuhiro Sugawara
Pages 113-118

Authors have been conducting research on an unmanned loading system by wheel loader. The system has function of sensing, decision making and control of motion. The operation of the system is autonomous completely without any assist of human operator. As a part of the research, the detection method of location and shape of the pile will be described in this ...

Keywords: Wheel loader, Loading operation, Autonomous system, Stereo-vision

Online-Estimation of Vibratory Driven Piles' Bearing Capacity: A First Approach

Markus Schönit, Dirk Reusch
Pages 119-128

Bearing capacity is an important attribute of driven piles. For centuries pile hammers have been used and their number of blows can be interpreted with respect to piles’ bearing capacity and soil characteristics. However, currently no method exists to interpret process parameters of vibratory pile driving with respect to a pile’s bearing capacity. In a first step laboratory piling experiments using ...

Keywords: Bearing capacity, vibratory pile driving, diesel hammer, online-estimation

New Model of Cement Product – Precast Slab Track for THSR (Taiwan High Speed Rail)

Yan-Chyuan Shiau, Chih-Ming Huang, Ming-Teh Wang and Lian-Ting Lu
Pages 129-140

The development of "slab track" was started by Japan in 1955 and the "Committee of slab track research" was established in 1971 for exclusive development of slab track. This makes Japan the country that has invested the most effort into slab tracks. On 5th January 2007, the THSR transferred from Japanese Shinkansen started its commercial operation. The stability and comfort ...

Keywords: Slab track, Taiwan High Speed Rail, Pre-cast track system, Quality management

Detection of Screws on Metal Ceiling Structures for Dismantling Systems

S. Rolando Cruz-Ramírez, Yasushi Mae, Yuusuke Ishizuka, Tomohito Takubo and Tatsuo Arai
Pages 155-162

In the dismantling works of office interiors for renewal, a robotic system is needed in order to assist the human workers engaged in this kind of job. Regarding to the items in the ceiling side, after a dismantling task of the ceiling boards, it is necessary to remove the screws that once held these boards to the Light Gauge Steel ...

Keywords: Dismantling System, Screw Detection, Pose Estimation of LGS

Behavior of Dynamic Processes in Self-Exciting Vibration of an Inpipe Robot

Kazimieras Ragulskis, Marijonas Bogdevicius, Vygantas Mištinas
Pages 209-212

In this paper, a robot for inpipe inspection of underground urban gas pipeline is presented. The robot is developed for visual and Non-Destructive Testing of the pipeline networks. The dynamic model of an inpipe robot with a self – exciting vibratory drive and its feed – compressor with feed – pipe is presented and the equations of its movement were ...

Keywords: inpipe robot, dynamics, self-exciting vibration, feeder, numerical method

Real-Time Object Recognition and Modeling for Heavy-Equipment Operation

Hyojoo Son, Changwan Kim, Hyoungkwan Kim, Kwang-Nam Choi, Jeong-Min Jee
Pages 232-237

Recognition of free-form objects located in environments that are difficult to characterize or are constantly changing is critical in providing interactive background information for construction worksite modeling. It also allows for accurate, efficient, and autonomous operation of heavy equipment in a broad range of construction tasks. This paper presents a realtime process for 3D modeling of a construction worksite scene ...

Keywords: 3D Modeling, Flash LADAR, Heavy Equipment Operation, Object Recognition, Point Clouds.

Modelling of Servo-Drive System with Hydraulic "Multi-Piston" Motor

Jan Szlagowski, Tomasz Miroslaw, Zbigniew Zebrowski
Pages 238-245

The great progress in computer hardware and software technique and technology changed the way of new product designing. It concern not only new designing tools like CAD/CAM programs but also a new approach to creation process. Additional stage of work appeared - the computer modelling. It helps us to find out mistakes at the very beginning. The computer modelling helps ...

Keywords: Computer modelling, hydraulic system, hydraulic piston motor

Automated 3D Data Collection (A3DDC) for 3D Building Information Modeling

F. Bosche, Carl T. Haas
Pages 279-285

The Architectural/Engineering/Construction (AEC) industry is slowly shifting toward performance-driven project and project delivery. Assuring good performance requires efficient performance control processes. Among the different construction performance control processes, many critical ones, including progress tracking, productivity tracking and dimensional quality control, rely on efficient three-dimensional (3D) information flows. However, the AEC industry currently lacks reliable and efficient means of monitoring 3D ...

Keywords: Project Control Processes, Monitoring, Three-dimensional, Automated Data Collection (ADC), Building Information Model (BIM).

A Study of Safety Management Using Working Area Information on Construction Site

Soungho Chae, Tomohiro Yoshida
Pages 292-299

The authors discussed on the development of a safety management support system to prevent construction site accidents using working area information. The past disasters on heavy equipment were evaluated to clarify the causes of the accidents, and the functions for support system to prevent collision were defined. The design of the system was proposed with working area from RFID technology ...

Keywords: Safety Management, RFID, Working Area, past disasters, collision accident

Implementation and Verification of a New California Type Profilograph Based on WLAN

Sugoog Shon, Inkyoon Yoo, Soohyung Lee, Jewon Kim
Pages 384-390

In this paper, profile measurement mechanism of a conventional California type profilograph is discussed and a new analytical model to include the non-linear characteristics of the profile sensing mechanism is introduced. A new digital 7.6 m California type profilograph with the combination of a modern sensor, a roughness evaluation software, and a wireless LAN is implemented for improvement. The accuracy and ...

Keywords: California type profilograph, WLAN, PrI, wavelength response, TCP/IP protocol stack

A Real Time Building Energy Effectivenss Assessment Model

Min Wu, Daniel C.W. Ho
Pages 411-421

While building provides shelter for human being, the previous models for assessing the intelligence of a building seldom consider the responses of occupants. In addition, the assessment is usually conducted by an authority organization on a yearly basis, thus can seldom provide timely assistance for facilities manager to improve and maintain their system. After a critical review of the models ...

Keywords: Real-time, energy consumption, building, assessment

Automatic 3D Modeling Development and Application for Hydraulic Construction

Po-Han Chen, Nguyen Thi Lan Truc
Pages 435-439

Nowadays, the application of 3D models is increasing in almost every field, especially the AEC (Architecture, Engineering, and Construction) industry. Most 3D models are generated through human manipulation with the use of CAD software like 3D Max, AutoCAD or Maya. These software packages are very efficient in 3D modeling, but sometimes they are not easy to use and experience might ...

Keywords: Automatic, 3D modeling, VisualLISP, sluice

Stochastic Scheduling with Multiple Resource Constraints Using a Simulated Annealing-Based Algorithm

Po-Han Chen, Seyed Mohsen Shahandashti
Pages 447-451

This paper proposes a new algorithm using Simulated Annealing (SA) for stochastic scheduling. Stochastic effects are added with nondeterministic activity durations. Simple simulated annealing can not properly handle such a complex problem so an improved version is produced and utilized within the algorithm. Generally, the availability of resources is not enough to complete all the current activities of the project ...

Keywords: Stochastic scheduling, simulated annealing, Monte Carlo method, multiple resource constraints

Dynamic Prediction of Project Success Using Evolutionary Support Vector Machine Inference Model

Min-Yuan Cheng, Yu-Wei Wu
Pages 452-458

The purpose of construction management is to successfully accomplish projects, which requires a continuous monitoring and control procedure. To dynamically predict project success, this research proposes an Evolutionary Support Vector Machine Inference Model (ESIM). ESIM is developed based on a hybrid approach that fuses support vector machine (SVM) and fast messy genetic algorithm (fmGA). SVM is primarily concerned with learning ...

Keywords: Project management, Predictions, Support vector machines, fast messy genetic algorithm

Hybrid Advisory Systems and the Possibilities of IT Usage in the Process of Industrial Flooring Repairs

Marcin Gajzler
Pages 459-464

It is very often the case that the units responsible for the maintenance of the building have to repair industrial flooring. The large number of available materials and technologies as well as some other factors, make it necessary to use tools which would help to make good decisions. Hybrid advisory system is a tool which supports the process of decision ...

Keywords: Advisory systems, hybrid model, industry flooring repairs

Cost Estimation Methodology Using Database Layer in Construction Projects

Kyeong Jin Han, Hyun-Soo Lee, Moonseo Park, Sae-Hyun Ji
Pages 470-475

Recently, as the scale, structure, capacity and use of buildings are more complicated in construction projects, it is more difficult to estimation project’s costs. Because its project’s scale is much bigger than any other project’s one and total project cost is concluded after project is finished, it is important to make cost estimation method and system. In past, it is ...

Keywords: Cost estimation, Cost database, Influence factor, CBR, Regression

Two-Staged Early Cost Estimation for Highway Construction Projects

Du Yon Kim, Byoungil Kim, Seung Heon Han
Pages 490-495

The quality of early cost estimates is critical to the feasibility analysis and budget allocation decisions for public capital projects. Various research have been attempted to develop cost prediction models in the early stage of a construction lifecycle. However, existing studies are limited on its applicability to actual projects because they focus primarily on a specific phase as well as ...

Keywords: Early Cost Estimate, Highway Construction Project, Case-based Reasoning, Regression Tree, Quantity-based model

Virtual 3D Modeling for Optimized Bridge Construction Process

Changyoon Kim, Hyoungkwan Kim, Tae Kwun Park, Moon Kyum Kim, Changwan Kim
Pages 496-499

Over 50% of Korean government construction projects were reported to have been delayed over two years by frequent design changes. These problems are originated from the dynamic and uncertain characteristics of construction projects, such as unpredictable design changes. In particular, civil engineering facilities such as large-scale cable-stayed bridges are complex and require a thorough construction planning, because construction managers often ...

Keywords: Cable-stayed Bridge, 4D CAD, Operation 4D, Process Optimization, 3D Model, Virtual Process Model

An Intelligent Approach for Managing Materials Purchasing in the RMC Industry

Min Wu, Steve Rowlinson
Pages 515-520

A model for comparing the inventory costs of purchasing under the economic order quantity (EOQ) system and the just-intime (JIT) order purchasing system in existing literature concluded that JIT purchasing was virtually always the preferable inventory ordering system especially at high level of annual demand. By expanding the classical EOQ model, this paper shows that it is possible for the ...

Keywords: EOQ, JIT, Multi-agent system, control

Streamlining the Data Transformation Process for Construction Projects via Building Information Modeling

Yi-Jao Chen, Chung-Wei Feng
Pages 549-558

Information processing is critical to the successful development and execution of a construction project plan. Currently, Building Information Modeling (BIM) has been widely used in representing the physical and functional characteristics of design and construction. However, in order to use BIM effectively in construction project planning, more construction knowledge should be transformed and integrated. This paper proposes an activity-based modeling ...

Keywords: MD CAD model; Project planning; Building information modeling

Benchmarking for Construction Management Process Reengineering

Min-Yuan Cheng, Ming-Hsiu Tsai, Wiraputra Sutan
Pages 559-565

Benchmarking philosophy was applied to construction management process reengineering so that process managers can reengineer processes by learning the best-practice company’s process. For this purpose, this paper addressed the process adaptability evaluation method to assist managers determining the best-to-learn process from the best-practice companies. By using the proposed method, the Adaptability Index (AI) can be calculated to represent the acceptance ...

Keywords: construction management process, reengineering, benchmarking, process similarity, trend model.

Using the MD CAD Model to Develop the Time-Cost Integrated Schedule for Construction Projects

Chung-Wei Feng, Yi-Jao Chen
Pages 573-584

This paper presents a work-item-based scheduling system that employs MD CAD model, Object Sequencing Matrix (OSM), and Genetic Algorithms (GAs) to generate the time-cost integrated schedule for construction projects. Consisting of MD CAD objects, the MD CAD model ensures the consistency and efficiency of information processing and integration in project planning. In the development of MD CAD model-based scheduling system, ...

Keywords: MD CAD model; Construction schedule; Genetic Algorithms (GAs)

Decision Support in Analysis of Construction Contracts

Sigitas Mitkus, Eva Trinkuniene
Pages 604-609

Preparation of an agreement has a great influence on economic success of both parties and on their behaviour in order to increase their profits and to protect themselves against possible loss. It is important to use technological innovations in construction contracting. Even when the construction contractor is selected and the price and work terms are negotiated, it’s possible to choose ...

Keywords: Decision support systems, construction contracts, multiple criteria evaluation.

Decision Support Model Using the AdaBoost Algorithm to Select Formwork Systems in High-Rise Building Construction

Yoonseok Shin, Dae-Won Kim, Sung-Woo Yang, Hun-Hee Cho, Kyung-In Kang
Pages 644-649

Appropriate selection of a formwork system is a crucial factor in successfully completing any high-rise building construction project. However, in practice, the selection of an appropriate formwork system has depended mainly on the intuitive and subjective opinion of practitioners with restricted experience. Therefore, in this study, a decision support model using AdaBoost is proposed to select a formwork system suitable ...

Keywords: formwork system, adaptive boosting (AdaBoost), artificial neural network (ANN), decision support model, high-rise building

Multi-Attribute Assessment of the Asphalt Mixing Plants

Henrikas Sivilevicius, Edmundas Kazimieras Zavadskas, Zenonas Turskis
Pages 650-655

Multi-attribute methods in road construction can be used on the national, organization and project levels. However, most of assessment methods are seeking to find how to make the most economic construction decisions, and most of all these decisions are intended only for economic objectives. Computerised Asphalt Mixing Plants (AMP) are one of the most expensive and complicated equipments for construction ...

Keywords: Asphalt mixing plant, quality, attribute, assessment, additive

Automated Evaluation of Alternative Solutions of Building Design

Jonas Saparauskas
Pages 656-663

The purpose of this article – is to create theoretical model in order to enable in automated manner to compare different solutions of building, its part or structure design and to select the best alternative under specific circumstances. Summarizing variant design theory and practice applications in Lithuania and abroad, evaluation model of alternative design solutions is created. By assistance of ...

Keywords: Automated evaluation, theoretical model, facade system, multiple criteria evaluation methods

Modeling of Contractor Selection Taking into Account Different Risk Level

Jolanta Tamošaitiene, Zenonas Turskis, Edmundas Kazimieras Zavadskas
Pages 676-681

This paper presents contractors’ assessment and selection based on the multi-attribute methods in a competitive and risky environment. The model is based on a multi-attributes evaluation of contractors, the determination of their optimality criterion values calculated according to Hodges-Lehman rule. The proposed model could further be applied to construction operations. The attributes of contractor evaluation are selected by taking into ...

Keywords: Attributes, contractor, risk level, Hodges-Lehmann rule

Multiattribute Analysis of Investment Risks in Construction

Leonas Ustinovichius, Zenonas Turskis, Galina Shevchenko
Pages 682-687

The risk of investment in a construction objects is an important decision leading to the project success. The decisionmaking process, based on the established risk assessment principles expressed in linguistic terms, requires qualitative judgement and experiential knowledge of the construction experts. Presented structured and realistic model deals systematically with different risk management situations and assist the investors in reaching the ...

Keywords: SAW, investment risks, classification, multiattribute analysis

A Study of Preproject Planning and Project Success Using ANN and Regression Models

Yu-Ren Wang, G. Edward Gibson Jr.
Pages 688-696

It is long recognized by the industry practitioners that how well preproject planning is conducted has great impact on project outcome. Through industry project data collection and model analysis, this research intends to investigate the relationship between preproject planning and project success. In early stage of the project life cycle, essential project information is collected and crucial decisions are made. ...

Keywords: Preproject Planning, Project Success, Regression Model, ANN Model

Errors of Calculations in M/M/1/FIFO/N/F Model with Limited Duration of Shift

Andrzej Wieckowski, Miroslaw Skibniewski
Pages 708-716

The popular models developed under of queueing theory describe how systems function within an infinitely long time interval. Yet, a real work is executed within the limited time intervals of work-shifts. The study was performed on the basis of one example involving excavations made by one excavator and the transportation of soils excavated using dumps tracks driving within "a closed ...

Keywords: Queueing Theory; Work-Shift; Construction.

Model for Multiple Criteria Analysis of Integrated Intelligent and Built-Up Ambient Assisted Living Environment

Edmundas Kazimieras Zavadskas, Mindaugas Krutinis, Arturas Kaklauskas, Povilas Vainiunas, Jurga Naimaviciene, Lina Povilaityte, Laura Tupenaite
Pages 725-730

Creation of healthy lifestyle conditions and guarantee of indoor life quality is one of the most relevant issues related to research of indoor microclimate and our environment. Guaranteed indoor life quality would improve productivity, as well as reduce morbidity and healthcare expenditures. Intelligent assisted residential environment embraces technological, organizational and institutional innovations. New technology can help to solve the existing ...

Keywords: Built Environment, Ambient Assisted Living, Multiple Criteria Analysis, Model

A Session-Based Collaboration Environment for BIM-Based Project Life-Cycle Management

Sangyoon Chin, Su-Won Yoon, Tae-Hong Shin, Ghang Lee, Cheolho Choi, Soon-Wook Kwon
Pages 745-750

It has been recognized that a system that facilitates efficient communication and interaction is critical in order to improve coordination between AEC project participants. Various research literatures show that migration of conventional AEC work processes, which have relied heavily on two-dimensional drawings, to more convergent processes that share a single common information source based on three-dimensional object-oriented data or BIM, ...

Keywords: BIM, session-based CPLM (Construction Project Life-cycle Management), collaboration

Modelling Country Reliability in Public Private Partnership Infrastructure Projects

Matthias Ehrlich, Robert Tiong Lee Kong
Pages 751-758

Most Public Private Partnership (PPP) infrastructure projects especially in emerging markets carry a high amount of economic foreign exchange (FX) exposure. Risk mitigation instruments (RMI) are frequently implemented by governments to compensate FX loss in the Special Purpose Company (SPC). The experience of many investors is an underestimation of the risk that governments would refuse to readjust the contracts after ...

Keywords: public private partnership, risk mitigation, foreign exchange, cash flow modelling

Assessment of Air Pollution PM10 in the City of Vilnius and its Influence on Life Quality

Agne Matuliauskaite, Vilma Vetaite, Arturas Kaklauskas
Pages 782-788

The authors of this paper participated in two Lincoln Institute of Land Policy Fellowships. One of the goals in the above projects was to develop and to improve a Model of Real Estate Market Value, Pollution and Health Effects Analysis Decision Support System (RE-MVPHE-DSS). The article also introduces a complex and increasing issue: assessment of air pollution PM10, PM2,5 and ...

Keywords: model, particulate matter, air quality measurements, air pollution control, PM10 influence on health

Reaching for the Skies: Time and Turbulence in Digital Technologies and Practices

Jennifer K. Whyte
Pages 836-847

This research examines dynamics associated with new representational technologies in complex organizations through a study of the use of a Single Model Environment, prototyping and simulation tools in the mega-project to construct Terminal 5 at Heathrow Airport, London. The ambition of the client, BAA, was to change industrial practices reducing project costs and time to delivery through new contractual arrangements and new digitally-enabled ...

Keywords: Digital infrastructure, time, technology, visual representations, organizational practices, coordination

Model for an Integrated Analysis of Distance Learning Quality: the Case of Lithuania

Arturas Kaklauskas, Edmundas Kazimieras Zavadskas, Vaidotas Trinkunas
Pages 849-853

Globalisation, constantly increasing amounts of information, rapid change of society, segmentation—these are the challenges which boost the importance of social and cultural role of education considerably. The society is able to react to these challenges only when the education system is modern, flexible and open to constant change and new ideas. The response to needs of swiftly changing society attempted at guarantee of ...

Keywords: Distance learning, quality evaluation, reasoned decisions, decision support

Minimising Content Stagnation in Construction Education: Automating the Content Update through a Shared Web Repository for Distance Construction Education

Kaushal Keraminiyage, Dilanthi Amaratunga, Richard Haigh, Arturas Kaklauskas
Pages 858-863

With the use of modern information and communication technologies the distance education in construction has become easier and effective than ever before. However, the focus of the most of the construction distance education systems in place today is the need of students who are geographically prevented from attending the programmes hosted by an educational institution established physically or virtually. Generally, this arrangement is ...

Keywords: construction distance education, web technologies, shared repositories, content sharing

Sustainable Management of Construction Labour

Irene Lill
Pages 864-875

The construction industry of Estonia has experienced a period of economic growth which has started to turn down for now and the output forecasts state that this recess will continue. While the availability of unskilled workforce will be growing, the lack of high quality skills in the labour market is becoming even more acute when, after joining EU, skilled construction craftsmen have a ...

Keywords: Sustainability, labour management strategies, simulation modelling, multiskilling, workforce

2007 Proceedings of the 24th ISARC, Kochi, India 2007

Automated Project Schedule and Inventory Monitoring Using RFID

Geetha Kamakshi Gajamani, Koshy Varghese
Pages 47-53

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 monitoring in real time. The system considers the use of ...

Keywords: RFID, Schedule Updating, Inventory Updating, Project Monitoring

Development of a Probabilistic Sensor Model for a 3D Imaging System

Alan M. Lytle
Pages 75-80

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 is desired for these imaging systems to better understand and ...

Keywords: 3D Imaging System, Flash LADAR, 3D Range Camera, Sensor Model

Time-Optimal Control of Construction Transport Systems with Suspended Loads

Michael Rachkov
Pages 147-150

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 suspension to a rigid robot body. The time-optimal control consists ...

Keywords: Time-optimal Control, Construction Transport System, Suspended Load

Semi-Active Direct Control of Civil Structure Seismic Responses Using Magneto-Rheological Damper

M. T. Nguyen, N. M. Kwok, Q. P. Ha, J. Li, B. Samali
Pages 157-162

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 dampers are used as semi-active devices, taking the advantages of ...

Keywords: Structural Control, MR Dampers, Semi-Active Control, Lyapunov-Based Control, Seismic Response

Optimal Path Planning for Backhoe Based on Excavation Environment

Hyongju Park, Jin-Ok Shin, Sanghak Lee, Daehie Hong
Pages 169-174

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 to safety issues. An optimal path planning model to minimize ...

Keywords: Obstacle Avoidance, Joint Constraint, Jacobian Pseudo-Inverse, Path Planning

Collaborative Agent-Based System for Multiple Crane Operation

Cheng Zhang, Amin Hammad
Pages 193-198

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 focused on equipment working individually rather than coordinating multiple works, ...

Keywords: Collaborative Agents, Crane Operation, Simulation

Development of a 4-D Model for Application in Construction Management

Manish Goyal, K N Jha
Pages 289-294

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 plan. In the study, the 4D Model has been developed ...

Keywords: 4D Model, Project Planning, Progress Tracking, AutoCAD, MS Project

Synchronous Design Collaboration in a Peer-To-Peer Network

Hung-Ming Chen, Hung-Chun Tien
Pages 319-324

The Internet has revolutionized the way software systems work. Many applications, such as online games and instant messengers, have utilized web-related technologies to cooperate over the Internet. Recently, some researchers have utilized web-related technologies in Computer–Aided Design to allow real-time collaboration between users over the web. All these systems are based on the client-server model. In this kind of collaborative ...

Keywords: Computer-Aided Design, Internet, Synchronous Collaboration, Distributed Processing, Peer-to-Peer

MR Damper Optimal Placement for Semi-Active Control of Buildings Using an Efficient Multiobjective Binary Genetic Algorithm

N. M. Kwok, Q. P. Ha, B. Samali
Pages 361-367

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 building structure. In this paper, the placement of dampers is ...

Keywords: Building Control, Damper Placement, Genetic Algorithm, Multi-Objective Optimization

Modeling Construction Safety as an Agent-Based Emergent Phenomenon

Sivakumar Palaniappan, Anil Sawhney, Marco A. Janssen, Kenneth D. Walsh
Pages 375-382

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 interaction among multiple project factors gets translated into safety incidents. ...

Keywords: Construction Safety, Agent Based Modeling and Simulation, Construction Accidents Causation

Economic Evaluation Model for Post-Earthquake Repair/Rehabilitation of Bridge

Min-Yuan Cheng, Yu-Wei Wu
Pages 389-395

Taiwan’s location in a zone of strong seismic activity means that earthquakes regularly threaten human life and transportation facilities. The importance of bridges in Taiwan’s transportation grid makes the destruction or damage of such during earthquakes impact significantly on people’s livelihood. However, within the grid, the importances of individual bridges differ from one another in terms of their importance/impact on ...

Keywords: Bridge, Earthquake, Repair, Rehabilitation, Economic Evaluation

Optimum Evacuation in Public Gathering Places during the Time of Disaster

Dilip Kumar P V, Sriram Kiran B, Ramancharla Pradeep Kumar
Pages 405-410

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. Places where few thousands of people can meet are quite ...

Keywords: Building Evacuation, Public Gathering Places, Disaster, Simulation and Optimum Time

Optimization of Contractor's S-Curve

Wei Lo, Yih-Tzoo Chen
Pages 417-420

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 activity, can enhance the work efficiency and enable contractors to ...

Keywords: S-Curve, Optimization, Resource Allocation, Genetic Algorithms

A Model for Automated Generation of Resource-Driven Construction Schedule for Housing Industry

A. Cindrela Devi, K. Ananthanarayanan
Pages 421-427

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 to eradicate delays in mobilizing resources, an efficient resource schedule ...

Keywords: Resource Scheduling, Optimization, Genetic Algorithm, Repetitive Project

Simulated Annealing Algorithm for Optimizing Multi-Project Linear Scheduling with Multiple Resource Constraints

Po-Han Chen, Seyed Mohsen Shahandashti
Pages 429-434

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 is slightly different from the other two-stage solution finding procedures ...

Keywords: Linear Scheduling, Multi Projects, Multiple Resource Constraints, Simulated Annealing

Modeling Design Iteration Using DSM and Simulation

J. Uma Maheswari, Koshy Varghese
Pages 441-446

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 activities within the block. The strategy proposed in the ...

Keywords: DSM, Simulation, Basic Sequence, Execution Sequence, Blocks

Scheduling Model for Multiple Design Projects Considering Uncertain Design Iterations

Wei-Chih Wang, Jang-Jeng Liu
Pages 447-452

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 each other. That is, design process involves a number of ...

Keywords: Uncertain Design Iteration, Simulation, Design Schedule, and Design Process

Time Series Analysis of Construction Cost Index Using Wavelet Transformation and a Neural Network

Hana Nam, Seung Heon Han, Hyoungkwan Kim
Pages 453-456

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 inaccurate estimation of future construction cost. This paper presents a ...

Keywords: Construction Cost Index, Forecasting, Time Series Analysis, Wavelet Transform, Neural Network

Information Fusion for Making Credit Decision of PPP Road Projects Boeing

Singh Laishram, Satyanarayana N. Kalidindi
Pages 487-492

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 be used; (b) computing the degree of satisfaction of criteria ...

Keywords: Public Private Partnerships, Project Finance, Debt Financing, and Information Fusion

Model of Proactive Problem-Solving for Construction Knowledge Management

Wen-der Yu, Jyh-bin Yang, Judy C. R. Tseng, Cheng-tien Yu
Pages 493-500

Construction is an experience-based discipline, knowledge or experience accumulated from previous projects plays very important role in successful performance of new works. More and more construction organizations have adopted commercial Knowledge Management Systems (KMSs) for developing their own Knowledge Management (KM) functionalities. The existing KMS’s are mostly developed based on Communities of Practice (COPs) for knowledge sharing and exchange. Such ...

Keywords: Knowledge Management, Problem-Solving, Knowledge Map, Lessons-Learned, Proactive

2006 Proceedings of the 23rd ISARC, Tokyo, Japan 2006

Automation of Road Construction - The State of the Art in Europe

Rauno Heikkilä, Mika Jaakkola
Pages 7-10

Due to the development of 3-D techniques and methods, the utilization of different automated and 3-D based working methods has increased a lot in Europe during last few years. In the paper, this present situation is introduced based on the practical observations and tests gathered from five different Europe countries. Different experiments as well as achieved benefits are described. Conclusions ...

Keywords: Road construction, automation, 3-D machine control

Using DSM and fmGA to Determine the Optimal Design Process for Engineering Design Projects

Chung-Wei Feng, Yu-Chuan Yeh
Pages 90-95

The quality of the design has been recognized as one of the key factors to the success of the engineering project. However, engineers need to repeatedly perform design tasks, such as processing information, to produce an appropriate design result. Such a design process involves many activities and lead into one or several iterative loops. Consequently, the sequence of performing design activities should be ...

Keywords: Design Planning, Optimization, DSM, fmGA

A Framework for Exploring ICTM Impact on Building Design and Management Applied to a Hospital Development Project: Proposing ICTM to Building Design and Management for Information Consistent Control of Construction and Service Robots

Anita Moum, Thomas Bock
Pages 107-112

The field of building design is complex, and the successful interplay between iterative and interdependent processes, roles and actions can be seen as a foundation of developing good architectural design solutions and building projects. Over the years, the development of ICTM (Information- and Communication Technologies Management) has led to several changes in the AECFM (Architecture,Engineering,Construction, Facility Management)- industry. The main topic of this paper ...

Keywords: building design process, building design management, IFC-based BIM, ICT impact, robotics

Constitution of Design Management System for Curtain Wall

Hong-Kyoon Lim, Sang-Ho Yoon, Sang-Woo Park, Sang-Jun Park, Jae-Youl Chun
Pages 113-117

The curtain wall design process of Korea can be mainly divided into Basic DWG phase performed in architectural design phase and Shop DWG phase performed in the curtain wall design phase. The designing in such process (the process of going over to Shop from Basic) is being performed mainly by the outcome. So it is difficult to communicate between subjects ...

Keywords: Curtain wall design management system, process model, product model

Pose Estimation of Construction Materials Using Multiple ID Devices for Construction Automation

Tomohiro Umetani, Kenji Inoue, Tatsuo Arai
Pages 164-169

This paper describes a method of pose (position and orientation) of large object such as construction materials using multiple ID devices for construction automation. Object pose is crucial issue for construction automation, however, the pose can change by the robots and workers that do not have ID reader or measure the object pose. The proposed method supposes the position and direction of each ...

Keywords: parts oriented construction system, data collection and labeling system, radio frequency identification (RFID), pose estimation

Development of a Block Transfer Device Using Net Chains for Automation and Labor Saving

Hitoshi Noguchi
Pages 200-205

A device for transferring wave-dissipating blocks was developed using net chains to allow for automation and labor saving. The device spreads net chains over a block and then tightens the net chains using a wire rope connected to a crane to lift the block. A model device was used to conduct a transfer experiment under several visibility conditions. A practical device ...

Keywords: net chain, block, transfer, labor saving

Data Exchange Platform for Bridge Disaster Prevention Using Intelligent Agent

Min-Yuan Cheng, Yu-Wei Wu
Pages 321-326

Due to the location and environment of Taiwan, the frequency of nature disaster is high and the caused damages to the human life, properties and transportation facilities are serious. Considering the disaster prevention of bridge structures caused by earthquake, scour, debris flow, corrosion and senescence, literatures involving the developed bridge management information systems and the bridge disaster prevention, alert and prediction systems are ...

Keywords: Disaster prevention, Data exchange platform, Agent

A Resource-Based Quality Control e-Model for Construction Projects

Choung-Houng Wu, Shang-Hsien Hsieh, Hui-Ping Tserng, Li-Shing Yi
Pages 327-331

In recent years, increasingly more construction companies have adopted the Enterprise Resource Planning (ERP) system in some form for increasing productivity and work efficiency. However, the current practice on construction Quality Control (QC) still centers on quality control of work items associated with construction activities. This makes it difficult to integrate or collaborate with the ERP system that centers on management of resource ...

Keywords: Construction ERP, Quality Control (QC), Quality Control Breakdown Structure (QCBS), Quality control index

Software Agent for Design-Build Process Cooperation

Ming-Hsiu Tsai, Min-Yuan Cheng
Pages 335-340

This paper describes a research project that attempt to develop a process integrating method and finally to create a multi-agent system to support the cooperation in a design-build team. The approach taken is to apply Business Process Reengineering (BPR) philosophy for providing a process-based fast-tracking execution mechanism for design-build teams. An Integrated Design-Build Framework (IDBF) is proposed which consists of three layers; namely, ...

Keywords: design-build, fast-tracking, business process reengineering (BPR), multi-agent system (MAS), workflow

Development of a Risk Management System for the Project Life Cycle of Super-Highrise Residence

Shuzo Furusaka, Makoto Ohsaki, Kazunori Harada, Sohsuke Arai, Motohiko Yokose, Takashi Kaneta, Hideki Kashii, Katsuki Nakazono, Norikazu Katoh
Pages 375-380

In a super-highrise residence project, the project manager needs to forge a long-term risk management plan which covers any problems which may occur from the beginning of the project to the time of demolition. Development of a system which supports a risk strategy effectively is needed as a project becomes more complex. In this paper, first, through analysis of the life cycle of ...

Keywords: Risk management, Super-highrise residence, Project life cycle, Project management

Development of a Real-Time Control System Architecture for Automated Steel Construction

Kamel S. Saidi, Robert Bunch, Alan M. Lytle, Fredrick Proctor
Pages 412-417

The National Institute of Standards and Technology (NIST) is developing a real-time control system for a robotic crane (the NIST RoboCrane) that will perform automated structural steel pick-and-place operations. The control system architecture is based on the NIST Real-time Control Systems (RCS) reference model, which defines a system development methodology and a hierarchical control architecture in which system tasks and associated information are ...

Keywords: construction automation, real-time control architecture, robocrane, robotic crane, steel construction, task decomposition

Cost Management Using 3D Modeling - Design and Production Process in View of the Client Satisfaction -

Hiromitsu Sone, Makoto Nagao, Hirohiko Fujii
Pages 436-441

With the decline of construction investment, client’s demand for “Quality” “Cost Down” and “Shorter Construction Period” becomes more intense. And some surveys show that most dissatisfied contractor’s service for client goes to cost related matter including cost management and unclear decision making process. This report tries to demonstrate how one of the most advanced information technologies, “3D Modeling” can help ...

Keywords: Design by 3D Model, Client Satisfaction, Cost Management, Integrated Design

Development of Autonomous System for Loading Operation by Wheel Loader

Shigeru Sarata, Noriho Koyachi, Takashi Tubouchi, Hisashi Osumi, Masamitu Kurisu, Kazuhiro Sugawara
Pages 466-471

An outline of the developed system for autonomous loading operation by wheel loader will be described. The system consists of three sub-systems: (1) Environment measuring and modeling, (2) Planning and (3) Motion control. The environment measuring sub-system measures 3D shape of the environment by stereo-vision system. The shape of the pile is converted into the environment models. The planning sub-system ...

Keywords: loading operation, autonomous system, V-shape path, scooping, wheel loader

Development of Bucket Scooping Mechanism for Analysis of Reaction Force Against Rock Piles

Yuta Takahashi, Ryohtaroh Yasuhara, Osamu Kanai, Hisashi Osumi, Shigeru Sarata
Pages 476-481

A bucket control mechanism is developed for the simulation of rock pile scooping by wheel loaders. By measuring the reaction forces from the scooped rock pile by a six axis force sensor installed into this mechanism, the reaction force model can be obtained and its parameters are identified. By using the obtained model for controlling actual wheel loaders, efficient scooping ...

Keywords: wheel loader, autonomous scooping, rock pile, reaction force

Tracing Control for a Tracked Vehicle Based on a Virtual Wheeled Mobile Robot

Masamitsu Kurisu, Kazutaka Takahashi, Toyohiro Konishi, Shigeru Sarata
Pages 482-486

Although a tracked vehicle enables stable movements on rough terrain, in a rotating motion no fixed kinematic model such as the model of wheeled mobile robot exists. Hence, it is difficult to realize a autonomous driving control of the tracked vehicle. In this paper, a new tracking control method for a tracked vehicle is described. The proposed method is constructed by using a ...

Keywords: Tracked vehicle, Tracking control, Wheeled mobile robot

Reliable Position Estimation Method of the Mobile Robot by Laser Scanner and Indoor GPS System

Hyeyeon Chang, JongSuk Choi, Munsang Kim
Pages 505-510

The robust position estimation has been important issue of mobile robot research for past few years. However, because of physical constraint of each sensor, sensor fusion algorithm arise alternative proposal for solving the problem. In this paper, we proposed a sensor fusion algorithm for probabilistic localization of service robot using laser scanner and indoor GPS system. This scheme is a sample based algorithm ...

Keywords: Sensor Fusion, Probabilistic localization, Service robot, indoor GPS system, Range Image Sensor

Cylinder Detection and Grasping Application Using Humanoid Robot

Shingo Maeda, Tomohito Takubo, Kenji Inoue, Tatsuo Arai, Shun Nishide
Pages 517-522

Researches on humanoid robots have become more and more active in various fields. One of the purposes is to construct a coexistent and cooperative society between humanoid robots and human. The body of humanoid robots is similar to human beings enabling them to walk with a pair of legs and to work with their hands. Therefore, humanoid robots have advantages to work in ...

Keywords: Grasping, Cylinder Detection, GUI, Humanoid Robot

A Suggestion on Product Model Driven Construction Robot

Naohiro Ikeda, Syuji Ageishi, Hiroshi Yamamoto
Pages 527-532

The great majority of robot construction machine currently in service are remotely controlled with the help of video information. Most of these robots are connected to remote-control cameras. In certain circumstances, video images of these robot systems cannot provide clear relative positional relationship between the topography where the job is being done and the device at the top end of the machine, resulting ...

Keywords: Robot construction machine, top-end device, 3DCAD, product model

Standard Product Models for Supporting Automated Erection of Structural Steelwork

Vineet R. Kamat, Robert R. Lipman
Pages 533-538

A piece of automation equipment such as a robotic crane for steel erection has no intrinsic knowledge of the process it automates. Thus, geometric and spatial information about a component such as a steel member, and the motion sequences that must be executed to move that component from a staging area to its installed final location must both be programmed into the equipment. ...

Keywords: Automation, CIS/2, Emulation, Structural Steelwork

Development of a Vehicle-Mounted Road Surface 3D Measurement System

Kiichiro Ishikawa, Takashi Onishi, Yoshiharu Amano, Takumi Hashizume, Jun-ichi Takiguchi, Takashi Fujishima, Yoichi Tanaka
Pages 569-573

In recent years, automation system based on IT technology becomes very popular not only for manufacturing industries but also for the construction and civil engineering industries. The conventional location survey method in the civil engineering construction site is pinpoint location survey for a broad objective area. The conventional method has severe constraints when it comes to measure the broad objective area as macro ...

Keywords: GPS-Gyro/IMU, Mobile Mapping System, as-built management, 3D mesurement

Research on the Extendable Data Exchange Standard in Information Integrated Construction of Filling Work

Yoshitaka Minami, Hiroshi Yamamoto, Atsuro Oyama, Toshiyuki Kamei
Pages 574-579

Efforts to promote the information integrated construction of civil engineering work include the study and development of systems for efficiently conducting work and saving labor. However, such systems are often designed for a specific construction site or machinery, so construction information cannot be fully applied to other work sites or construction machinery. It is very important to realize sharing and ...

Keywords: Information integrated construction, Information sharing and linking, Information model, Data exchange standard

Identification of Elastic Constants of the Reinforced Orthotropic Composite Ground from Field Measurements

Hyu-Soung Shin, Gyan N. Pande
Pages 632-635

In this paper, a new methodology for identifying numerous elastic parameters of an orthotropic ground material from field measurements is presented. For a better understanding, a simpler problem, which, however, is in the same concept, is adopted for describing the strategy, which is to identify an orthotropic material from a single structural test. At the heart of the methodology is ...

Keywords: Neural Network, Identification, Orthotropic Material, Field Measurement, Tunnel

Adaptive Sliding Mode Control for Civil Structures Using Magnetorheological Dampers

T.H. Nguyen, N.M. Kwok, Q.P. Ha, J. Li, B. Samali
Pages 636-641

An adaptive sliding mode controller for vibration control is proposed in this paper for structures embedded with magnetorheological (MR) dampers. Civil structures and buildings are liable to damages during earthquake periods. The application of structural control methodologies is important in order to suppress vibrations due to seismic phenomena and dynamic loading. The use of sliding mode control is accounted for by its ...

Keywords: Structural control; MR damper; adaptive sliding mode control

Precise Road Line Localization Using Single Camera and 3D Road Model

Kiichiro Ishikawa, Takashi Onishi, Yoshiharu Amano, Takumi Hashizume, Jun-ichi Takiguchi, Shogo Yoneyama
Pages 675-680

In the near future, precise road line location data is said to be applied to car navigation system and ITS to increase the driving safety. It is important to maintain road data freshness and accuracy. A MMS(Mobile Mapping System) can acquire this road database, while offering an unbeatable productivity with the combination of navigation, and videogrammetry tools. The proposed MMS, featuring a ...

Keywords: Mobile Mapping System, GPS- Gyro /IMU, Road line survey, GIS

Using MD CAD Objects to Automatically Generate a Contract-Driven Schedule

Chung-Wei Feng, Yi-Jao Chen
Pages 740-745

To efficiently and effectively manage projects in the construction phase, project managers have to transfer information within the drawings to obtain a project schedule. However, practically, the result is usually arbitrary depending on the project scheduler’s experiences. This research employs MD CAD objects as basic scheduling components to develop a model that can effectively generate a contract-driven schedule. Several principles are developed to ...

Keywords: MD Model, Construction Schedule, Genetic Algorithm (GA)

Knowledge Sharing Model and its Implication on Knowledge Categorization and Management

S. Ping Ho, Pei-Chi Wu, Yaowen Hsu
Pages 751-756

Recently, Knowledge Management (KM) has been applied to business management practice. Surprisingly, there are few studies that address the most fundamental problem in KM: people may prefer not to share their knowledge in order to preserve their intellectual or proprietary values in the organization. Without the premise of each individual’s willingness to share knowledge, there will be no valuable input for the ...

Keywords: Knowledge Management, Knowledge Sharing, Knowledge Categorization, Game Theory

Workflows in Constructions Modelled with Stochastic Artificial Social Systems

Calin Ciufudean, Constantin Filote, Daniel Popescu
Pages 773-779

This paper focuses on evaluation of the performance characteristics of workflows in constructions modeled with stochastic Petri nets (SPN). This goal is achieved by focusing on a new model for Artificial Social Systems (ASS) behaviors. ASS exists in practically every multi-agent system, and play a major role in the performance and effectiveness of the agents. This is the reason why we introduce a ...

Keywords: Workflow, Artificial Social Systems, Stochastic Petri nets

An Application Model of RFID Technology on Progress Measurement and Management of Construction Works

Su-Won Yoon, Sangyoon Chin, Yea-Sang Kim, Soon-Wook Kwon
Pages 779-783

Accurate progress management is one of the critical factors for successful project management in the sense that it enables forecasting risks and taking corrective action by monitoring project status. However, the existing progress measurement methods have limits on accuracy and reliability due to ad-hoc measurement based on the personal experience of the project manager; there are no general standards. Radio Frequency Identification (RFID) ...

Keywords: Progress Management, RFID, Application Model

Development of Visualization System of Construction Process

Yoichi Yuasa
Pages 800-805

This technology displays each 3-dimensional stage of construction based on building model, construction plan model and process model, and is utilizable for the presentation in order-received stage and work directions in construction management stage. Moreover, this method not only can reduce input time sharply as compared with the method using conventional CAD and CG, but also can reduce correction time according to the ...

Keywords: Building Model, Construction Planning Model, Process Model, Construction Process, and Simulation

Particle Swarm Optimization-Based Coordination of a Group of Construction Vehicles

N.M. Kwok, Q.P. Ha, V.T. Ngo, S.M. Hong
Pages 840-845

The problem of coordinating construction vehicles in formations is tackled using the particle swarm optimization algorithm. Coordinated multi-vehicles are anticipated to outperform single vehicles in terms of economy and flexibility. A possible approach is to apply control theoretic methods to vehicle coordination but this may require complicated system models to be employed. The particle swarm optimization (PSO) algorithm adopted in this work, as ...

Keywords: Multi-vehicle coordination, particle swarm optimization, behaviour-based control, construction site automation.

Control Architecture Characteristics for Intelligence in Autonomous Mobile Construction Robots

Rahee Agate, C. Pace, Derek W. Seward, Mohmed J. Bakari
Pages 846-851

This paper details the implementation of a hierarchial control architecture based on Real-time Control System-Reference Model Architecture (RCS-RMA), for autonomous operation of mobile construction robots.

Keywords: RCS-RMA, Mobile robot, POMDP, PID

Optimization Model of External Resource Allocation for Resource-Constrained Project Scheduling Problems

Kuo-Chuan Shih, Shu-Shun Liu
Pages 864-871

Construction project scheduling is crucial to project success. From the perspective of contractors, a practical schedule based on engineering experience not only improves the accuracy of project duration and cost estimation during the bidding process, but also facilitates the operation during project execution. This study employs Constraint Programming (CP) techniques to resolve resource-constrained project scheduling issues. A new scheduling model aiming for the minimization ...

Keywords: Project scheduling, Resource-constrained scheduling, External resources, Constraint programming

Construction Planning Assist Method Used Construction Model

Yoshihisa Masamura
Pages 884-889

The study of construction planning assist method using information technology is being continued steadily. However, the practical planning assist methods like a automatically checking construction plan instantaneously have not been proposed. The purpose of this paper is to provide functional and practical new construction planning assist method using construction model. Authors developed Erection Planning System applied for erection checking. This system has the ...

Keywords: construction model, construction planning, assist method, activity checking method, information technology

2005 Proceedings of the 22nd ISARC, Ferrara, Italy 2005

Computer-Integrated Construction: Background and a Case Project

Luca Caneparo
Pages 0-0

Computer-Integrated Construction (CIC) is the capability of a computer system to create models of certain aspects of the design and construction processes and consequently to direct them into reality. The premise of CIC is that the clear-cut separation between the competencies, know-how and responsibilities has now been turned upside down by the introduction of information technology in the design and construction processes. The designers can now model the ...

Keywords: computer-integrated construction, project modelling, glued laminated timber, computer numeric control, distributed collaboration, concurrent design

Parallel Robots Used in Passive and Active Protection of the Buildings

Cornel Brisan
Pages 0-0

The paper presents some aspects related to the passive and active protection of the buildings. It is well know that Stewart platform is a mechanism with six degrees of freedom. This main property leads to the idea of its utilization in order to simulate fully the movements of earthquakes. On the other hand, from the same point of view this ...

Keywords: Parallel robots, Earthquakes, Protection of the buildings.

Mathematical Models Construction for Building Robots with Due Account of Elastic Deformations of Mechanisms

Alexej Bulgakov, Thomas Bock
Pages 0-0

The paper presents the formulation of general approach to construction of structural models for elastic manipulators, which can be presented in the form of collection of connected in series bodies experiencing elastic deformation, and suggests the methods of changing over to such structure. The paper describes in detail the method of constructing mathematical models for manipulators with elastic couplings, which is based on the ...

Keywords: building robots, mathematical models, elastic deformations

A Location System with RFID Technology in Building Construction Site

Soungho Chae, Naruo Kano
Pages 0-0

In this paper, the authors explained the overview of data sampling method for development of a location system for workers using RFID technology. Data is the RSSI (Receive Signal Strength Indication) from RFID tag attached to the worker installing a rolling shutter, and was obtained from antennas and RFID readers set around the construction site. Discriminant analysis was done using RSSI collected and the area where ...

Keywords: Location system, RFID Technology, Building construction site, Discriminant analysis model

Real-Time, Three-Dimensional Object Detection and Modeling in Construction

Jochen Teizer, Frederic Bosche, Carlos H. Caldas, Carl T. Haas, Katherine A. Liapi
Pages 0-0

This paper describes a research effort directed to produce methods to model three-dimensional scenes of construction field objects in real-time that adds valuable data to construction information management systems, as well as equipment navigation systems. For efficiency reasons, typical construction objects are modeled by bounding surfaces using a high-frame rate range sensor, called Flash LADAR. The sensor provides a dense cloud of range points which are segmented ...

Keywords: No keywords

Automatic Assembly System for Modular Structure

Yuzuru Terada, Satoshi Murata
Pages 0-0

Automated construction is in high demand in many applications in the extreme environments such as space structure construction. In order to avoid exposure of human workers, construction machines are usually remote-controlled for such applications. Because of communication delay and narrow communication bandwidth, such systems require high-level expertise and also are ineffective and frustrating to the operators. We have proposed a novel concept of automated construction called automatic Modular ...

Keywords: Terms—modular robot; assembly; self-organize; connector

A 3D Laser Scanner Model as Virtual Database for Integrated Analyses

Claudio Alessandri, Marcello Balzani, Nicola Zaltron, Federico Uccelli
Pages 0-0

Some recent experiences of integrated analyses based on the use of 3D laser scanning and related 3D models will be presented. In the first place the idea of a 3D model as a multipurpose virtual database will be focused in relation to specific case studies where the contributions of surveyors, historians, engineers and restorers are tightly related to one another. Applications will concern monuments, historical buildings ...

Keywords: 3D laser scanner, 3D modelling, integrated procedures

Modeling and Controlling for Hydraulic Excavator's Arm

Daqing Zhang, Qinghua He, Peng Hao, HaiTao Zhang
Pages 0-0

Controlling of excavator’s arm is an important and basic task in autonomous research of hydraulic excavator at present, but the behavior of the excavator’s arm is dominated by the nonlinear dynamics of the hydraulic actuators. To find a feasible way to control excavator’s arm and realize autonomous excavation, firstly, Full kinematic and dynamic models of the excavator arm, regarded as a planar manipulator with three degrees (boom, ...

Keywords: adaptive robust control, autonomous excavation, dynamic model, hydraulic excavator, kinematic model, motion control

Development of Hardware In the Loop System (HILS) for Hydraulic Excavator

Tae-Hyeong Lim, Hyun-Chul Cho, Hong-Sun Lee, Soon-Yong Yang
Pages 0-0

Hydraulic excavators have been popular devices in construction field because of its multi-workings and economic efficiency. The mathematical models of excavators have many nonlinearities because of nonlinear opening characteristics and dead zone of main control valve, oil temperature variation, etc. Actual test is needed when new component or control algorithm is developed but many restrictions exist. Hydraulic circuit of excavator is too complex to make models mathematically ...

Keywords: Hydraulic Excavator, HILS, Paper map, AMESim

Virtual Prototyping and Real-Time Simulation of Heavy Equipment Manipulators Including Elastic Deformations and Hydraulics

D. Schramm, D. Franitza, W. Lalo
Pages 0-0

The efficient and unerring development of sophisticated manipulation machinery strongly relies on the efficient use of CAE (Computer Aided Engineering) methods. Meanwhile these methods more and more spread into areas, which have been so far domains of so called VR (Virtual Reality). This encompasses the design aspect as well as the simulation of an already defined device under given workload and working environment along with the option ...

Keywords: CAE, Real-time simulation, multibody systems

Nonlinear Control System Design for Construction Robots: Estimation, Partial Linearization by Feedback and State-Dependent-Parameter Control

E.M. Shaban, K. Zied, C.J. Taylor, D.W. Seward
Pages 0-0

This work is concerned with the development of State Dependent Parameter, Proportional-Integral-Plus (SDP-PIP) control of a prototype robotic arm called Starlifter.

Keywords: PIP Control, Construction Robotics, SDP-PIP control, Partial Linearization by feed back

An Analytic Study of Architectural Design Style by Fractal Dimension Method

Kuo-Chung Wen, Yu-Neng Kao
Pages 0-0

The design style form, is the different current thought and the local characteristic, the penetration idea but gradually develops into has the representative design form. One kind of typical style form usually is and the local humanities factor and the natural condition close correlation also must have in the creation the idea and the model characteristic. The style although displays to the form, but the style ...

Keywords: architectural master, designing style, fractal dimension, architecture analysis

Towards Automated Total Process in Road Construction

Rauno Heikkilä, Mika Jaakkola
Pages 0-0

Information technology can be generally understood as techniques and methods needed for creating, processing, refining, transferring and utilizing information through different working processes of construction. For managing information process different measurement, software, modeling, information communication as well as numeric control technologies are needed on the operational level. A visionary model of automated total process for future road construction is introduced. The main parts of ...

Keywords: Construction, Total process, Information technology, automation.

Petri Net Based Diagnosis for Construction Design

Calin Ciufudean, Adrian Graur, Constantin Filote, Daniel Popescu, Camelia Petrescu
Pages 0-0

In this paper we propose a Petri net within a diagnosis system for construction design. We assimilate the construction process with an assembly process that composes parts and/or subassemblies into a unique product. We assume that the assembly supervisor (AS) system is distributed, and it solves several local AS attached to the nodes of the Petri net model of the assembly process. The research issues that ...

Keywords: Petri nets, diagnosis, assembly process, objective function

Building a Dynamic Path Choice Model of Flooding Evacuation in Urban Area

Kuo-Chung Wen, Chih-Fan Hsu
Pages 0-0

This research has shown the difficulties associated with the GIS and the flooding evacuation path search through the huge searching space generated during the network analysis process. This research also presents an approach to these problems by utilizing a search process whose concept is derived from natural genetics. Genetic Algorithms (GA) have been introduced in the optimization problem solving area by Holland (1975) and Goldberg (1989) and ...

Keywords: Genetic Algorithms, Network Analysis, GIS, Evacuation Path

A Structured Approach to Form Dependency Structure Matrix for Construction Projects

J. Uma Maheswari, Koshy Varghese
Pages 0-0

The sequence of design activities is vital, particularly in interdisciplinary projects. Sequencing of activities is influenced by the information dependency among the activities. The dependency relationships among the design activities in a project are of three types – independent, dependent and interdependent or loops. Interdependent activities (or loops) require assumed information to start and progress. If these assumptions are erroneous, it can lead to rework of a ...

Keywords: Dependency Structure Matrix, Project Planning, Information Flow, Construction Design Projects

Cross-Organization Process Integration in Design-Build Team

Min-Yuan Cheng, Ming-Hsiu Tsai
Pages 0-0

Combining the design-build and fast-tracking delivery methods, this study aimed to reengineering the fast-tracking processes across both organizations of designer and constructor, so that fast-tracking processes in the design-build team can span across organizational boundaries and are composed of cooperating workflows executed in different organizations. For this purpose, two subjects are described in this study, namely, (1) fast-tracking model creation, and (2) cross-organizational process reengineering. Consequently, this research ...

Keywords: design-build, fast-track construction, business process reengineering (BPR) , virtual enterprise (VE), intelligent agent (IA)

Construction Conceptual Cost Estimates Using Support Vector Machine

Min-Yuan Cheng, Yu-Wei Wu
Pages 0-0

Conceptual cost estimate plays an essential role in project feasibility study. In practice, it is performed based on estimator’s experience. However, due to the inaccuracy of cost estimate, budgeting and cost control are planned and executed inefficiently. Support Vector Machines (SVMs), an Artificial Intelligent technique, is used to conduct the construction cost estimate. The algorithms of SVMs solve a convex optimization problem in a relative short time ...

Keywords: Construction Cost, Conceptual Cost Estimate, Support Vector Machines

Mobile Robotics Tecnique for 3D Environment Reconstruction

Annalisa Milella, Mario Foglia, Giulio Reina
Pages 0-0

Mobile robotics can be successfully applied for 3D environment exploration and reconstruction. Here, a vehicle tracking system is described based on combining laser and camera information aiming at building maps of unstructured environments. The proposed system integrates a ground-fixed CCD camera with a phase-shifting laser to follow the vehicle moving across the environment. The method comprises two stages. The first stage is a precalibration process, for the gross ...

Keywords: Mobile robotics, laser measurements, environment reconstruction, mapping.

Planar Map and 3D Model Construction Using a Mobile Robot

Tommaso Gramegna, Giovanni Attolico, Arcangelo Distante
Pages 0-0

Building the planar map and a 3D model of the environment is a fundamental task for a mobile robot that , using several and properly configured equipments and appropriate software modules, can reach these goals with high precision and in an automatic way. Such capability can increase the efficiency and the quality of 3D reconstruction not only in challenging environments (caves, mines, …) but also in ...

Keywords: Autonomous Robot Navigation, Range Sensing, Planar Map Construction, 3D Reconstruction

Instrumentation of a Roller Compactor to Monitor Vibration Behavior during Earthwork Compaction

Robert V. Rinehart, Michael A. Mooney
Pages 0-0

Among the goals of intelligent soil compaction is feedback control of vibration frequency, force amplitude, and forward velocity to optimize the compaction of soil. The development of a robust model structure for feedback control and/or soil parameter identification for continuous quality control/quality assurance requires comprehensive information about the machine's behavior, e.g., vibration characteristics. This paper describes the development of a comprehensive instrumentation system to monitor the three dimensional vibration ...

Keywords: Intelligent Compaction, Vibration Monitoring, Accelerometers, Hall Effect Sensors

The Possibility of Directional Stability Improvement of Articulated Tool-Carriers

Marian J. Lopatka, Tomasz Muszynski
Pages 0-0

Our research shown that there are two main reasons of poor directional stability of articulated tractorstoolcarriers: a small frame articulation which always occur due to different reason and limited perception of driver which has insensitivity zones of lateral and angular location. On this basis the principle for stabilization of steering system was worked out. In this paper the model of articulated tractor, assumption and result of simulating ...

Keywords: Articulated frame vehicle, directional stability, driver aid system, simulated investigation

Planning of Scooping Position and Approach Path for Loading Operation by Wheel Loader

Shigeru Sarata, Yossewee Weeramhaeng, Takashi Tsubouchi
Pages 0-0

Our group developed a method for planning of scooping point and approach path as a part of our ongoing research on autonomous loading operation of wheel loader at construction sites. The planning of scooping position and direction is obtained through processing pile model. The pile model represents shape and volume of the pile, changes of shape and volume by scooping, and ...

Keywords: loading operation, path generation, scooping wheel loader

Cutting and Impedance Model of Soil-Excavator Interaction

Fiorenzo Malaguti
Pages 0-0

The present work considers a double wedge soil cutting model, suitable to describe the soil-tool interaction in automated digging processes. This one or a similar model will be the base to reach a set of equations by which to fit online typical soil and tool parameters, instead to fit these parameters by time consuming autoregressive methods. The final aim is ...

Keywords: Automation, digging, soil, online fitting

Smart GA-Based Cost-Scheduling Model for Resource-Constrained Projects

Haijie Weng, Po-Han Chen
Pages 0-0

In construction scheduling, problems can arise when each activity can be started at different time points and the resources needed by the activities are limited. Moreover, activities have required conditions to be met, such as precedence relationships, resource demands, etc. To resolve these problems, a two-phase GA (genetic algorithms) model is proposed in this paper, in which both the effects of time-cost trade-off and resource scheduling are ...

Keywords: Resource-constrained project scheduling; genetic algorithms; time-cost trade-off; resource scheduling

The Development of Monitoring & Management System for Environment Index of Ecological Engineering

Yan-Chyuan Shiau, Da-Jen Chu, Jen-Chen Jao, Chih-Kun Chu, Tsung-Pin Tsai, Miao-Ling Huang
Pages 0-0

In order to maintain ecological environment, protect limited natural resources, promote the quality of life, and advance the eternally usage of all precious resources, we have some good achievement in both industrial circles, government official areas, and academic communities. Since each engineering method will cause different impact, we need to effectively grasp the biological information for engineers to make the appropriate decisions in choosing the construction system. ...

Keywords: Database, Ecological Engineering, ER Model, GIS

Integrating Site Conditions in a Web-Based Intelligent Cost Estimator (WICE) System for Highway Construction Projects

Wen-der Yu, Gang-wei Fan, Shao-Shung Lo
Pages 0-0

This paper presents an integrated Web-based Cost Estimator (iWICE) system. The iWICE incorporates the influence of site conditions into a previous developed Web-based Intelligent Cost Estimator (WICE) system for highway construction projects. A VaFALCON neuro fuzzy system is employed to construct the site condition knowledge-based system that provide modifications for work unit costs from WICE. Moreover, VaFALCON allows user to input partial attribute information as complete attribute values ...

Keywords: conceptual cost estimating, neuro-fuzzy system, site conditions, highway

2004 Proceedings of the 21st ISARC, Jeju, South Korea 2004

Proposal for Applying Telematics Concept and Analyzing Economical Model in Site

Tai Sik Lee, Dong Wook Lee, Ja Kyung Koo
Pages 0-0

Nowadays, the dependence of productivity on construction equipment is getting bigger and the mass of equipment cost is increase, those are indirect evidence of important of equipment. But construction field has the characteristic that is the various activities and wide work area. These make many problems in the operating of equipments. These problems bring about diminution of workability and productivity, in result it ...

Keywords: Construction equipment, Telematics, Site characteristic, Economical analysis model

3-D Real-Time Accuracy Control of Automated Road Construction Machines

Rauno Heikkilä, Mika Jaakkola
Pages 0-0

This research studied the possibilities for utilizing different a priori types of measuring algorithms in order to improve accuracy and reliability of automated machine control in road construction. Generally in measurement science different a priori types of algorithms have widely been used to estimate beforehand the propagation of randomly appearing errors. While the exact mathematical solutions for derivative measurement quantities, as well as the ...

Keywords: automation in construction, accuracy control, stochastic models, intelligence in automation

Towards Model Based Automation - Different Types of 3-D Machine Control Models for the Automatic Control of Road Construction Machinery

Mika Jaakkola, Rauno Heikkilä
Pages 0-0

In this paper the type of CAD model-based automation is studied for the domain of infra construction tasks. The needs for machine control models vary from machine to machine. This paper describes as examples the machine control models needed for road graders, asphalt pavers, excavators, milling machines and steamrollers – the most typical work machines used in road construction activities. The paper also ...

Keywords: automation in road construction, 3-D CAD, machine control models

Modeling Measurements and Measuring Models – Problems and Solutions of 3-D Geometrical Control in Concrete Bridge Engineering

Rauno Heikkilä, Mika Jaakkola, Pekka Pulkkinen
Pages 0-0

The paper introduces a model and procedure of 3-D geometric process for concrete bridge engineering. New 3-D CAD design tools and 3-D measurement methods were developed and tested in the several real bridge construction projects in Finland during 2001-2004. The paper describes these observations and suggests the first conclusions for future developments as well as more expansive utilization especially in bridge construction in Finland.

Keywords: concrete bridge design, 3-D CAD, 3-D measurements

Application of Engineering Management Information on Construction Disputes and Claims

Min-Yuan Cheng, Chi-En Chang
Pages 0-0

The high risk, uncertainty and complicated interface for division of work in the construction industry have resulted in endless engineering dispute issues. Submitting claims during the performance of construction contracts can be money wasting and time-consuming process. This paper summarizes dispute issues occur often on construction site, clarifies what responsibility each party should bear, identifies the compensable claim items in each dispute issue and ...

Keywords: Construction Disputes and Claims, Daily Records, Construction Claim Decision Making System (CCDMS)

Mining of Conceptual Cost Estimation Knowledge with a Neuro Fuzzy System

Wen-der Yu, Yu-ru Lee
Pages 0-0

Conceptual cost estimation during the early stage of a construction project plays important role for feasibility analysis and project planning. Traditional approaches rely heavily on experienced engineers, and may cause loss of conceptual estimation knowledge of the firm. This paper proposes a method integrates a previous developed conceptual cost estimation method (PIREM) with the ANFIS neuro-fuzzy system for mining of cost estimation data. A case ...

Keywords: Conceptual cost estimation; Neuro-fuzzy; Data mining, KDD; China

Prioritization System for Building Maintenance Applications in Public Universities

Chih-Yuan Chang, Yuan-Chu Chang, Shyh-Meng Huang
Pages 0-0

This research present a system named Prioritization System (PS) to support the maintenance engineers while they are making the decision about the priorities for maintenance applications of school buildings. Distinguished from the other research done before, which built the priority model only with historical data, the PS presented in this research bases both on historical data and knowledge, which is deposited in a school ...

Keywords: Prioritization System, Maintenance, School Building, Knowledge Base, University

Dynamic Prediction Model for Financial Distress in Construction Industry Using Data Mining

S. Ping Ho, Fang Ying Lin
Pages 0-0

The early awareness of a potential financial distress is crucial to firm’s managers for understanding their clients, suppliers and their own firms, and crucial to fund suppliers for assessing the construction firm’s credit worthiness. The purpose of this paper is to develop a dynamic prediction model for financial distress in construction industry using Data Mining. This research expects to provide construction firm managers ...

Keywords: Financial Distress, Distress Prediction, Data Mining, CART (Classification and Regression Tree), Construction Industry

Schedule Management Process Model Based on CSDM

Han-guk Ryu, Hyun-Soo Lee
Pages 0-0

The duration of a construction project must be an important item in construction contracts. If a contractor can work in the planned parameter, the contractor can finish the construction project in a timely manner. However, when construction industry is compared to other industries, it is difficult to complete a construction project in which many construction trades participate during the construction phase. In most cases, ...

Keywords: CSDM(Construction Schedule Data Mart), Schedule Process, Impact Factor, Schedule Risk, CBR(Case-Based Reasoning)

Scheduling Model Considering Construction Interfaces for Building Projects

Wei-Chih Wang, Yu-Ting Lai
Pages 0-0

Practitioners often manage construction interfaces and scheduling separately. However, poor management of construction interfaces frequently causes delays in project duration. This work develops an innovative scheduling model that incorporates management of construction interfaces for building projects. The proposed model comprises five steps, including generating an integrated schedule, establishing interface work groups, identifying front- and post-holding activities for each work group, mapping interface events, and transforming ...

Keywords: Interface management, construction interface, network scheduling, and schedule control

Supply Chain Management System for Construction Material Planning

Pao H. Lin, H. P. Tserng, W. Y. Lin, H. S. Hsu
Pages 0-0

This study relies on integrated inventory theory which merges with the supply chain concept and aims at the steel bar material of precast factory’s twoechelon supply chain system. In order to consider the variable demand rate, unfixed supply time, unfixed supply frequency and unfixed supply quantity, this study builds a strategic model that minimizes the total inventory cost of all participators. Based on the established ...

Keywords: supply chain, integrated inventory, precast, material planning

Automation of an Excavator Based on a 3D CAD Model and GPS Measurement

Tomi Makkonen, Kalervo Nevala, Rauno Heikkilä
Pages 0-0

This study examines the possibilities of controlling a six degrees of freedom excavator with the final objective of controlling the movements of the excavator by using a CAD model of the road surface. Compared to the traditional excavator with 4 DOF, the excavator was provided with two additional degrees of freedom by applying the 2 DOF Rototilt, an accessory commonly in use. The ...

Keywords: robotic excavator, path generation, dig planning, modeling, simulation, triangular terrain model, CAD

Identification of Partially-Exposed Metal Object

Tomohiro Umetani, Yasushi Mae, Tatsuo Arai, Hironori Kumeno, Kenji Inoue, Tomohito Takubo, Hiroshi Niho
Pages 0-0

This paper describes a method of automated type and pose (position and orientation) identification of partially exposed metal objects that makes excavation of hazardous materials safe and efficient. The object pose is estimated by matching a model of the object to the area that is extracted from the range image using the characteristics of metal objects. Experimental results show feasibility of ...

Keywords: This paper describes a method of automated type and pose (position and orientation) identification of partially exposed metal objects that makes excavation of hazardous materials safe and efficient. The object pose is estimated by matching a model of the object to the area that is extracted from the range image using the characteristics of metal objects. Experimental results show feasibility of type and pose identification of partially exposed objects.

Proportional-Integral-Plus (PIP) Gain Scheduling Control of an Intelligent Excavator

Jun Gu, James Taylor, Derek Seward
Pages 0-0

This paper considers the design and implementation of an electro-hydraulic control system for a robotic excavator, namely the Lancaster University Computerised and Intelligent Excavator (LUCIE). The excavator is being developed to autonomously dig trenches without human intervention. Here, a gain scheduling design, based on Proportional-Integral-Plus (PIP) control methods, is utilised to regulate the highly nonlinear joint dynamics. Simulation and initial ...

Keywords: robotic excavator; model-based control; gain scheduling control; proportional-integral-plus

Teleoperation of Construction Machines with Haptic Information for Underwater Applications

Junichi Akizono, Taketsugu Hirabayashi, Takashi Yamamoto, Hiroshi Sakai, Hiroaki Yano, Masaki Iwasaki
Pages 0-0

Mechanization is necessary for safer and more efficient underwater construction work in port areas. Teleoperated underwater construction machines are under developing. The problem is that conventional TV camera system is useless in water because of turbidity. Haptic information is introduced as the aid to control construction machines substituting for visual information. Components of control technologies are visualization of haptic image, force feedback, and similar ...

Keywords: Underwater Construction Machine, Visualization of Haptic Image, Force Feedback, Similar Figure Controller, Leveling Experiment

Neural Network Based Identification of Nine Elastic Constants of an Orthotropic Material From a Single Structural Test

H. S. Shin, S.W. Lee, C. Y. Kim, G. J. Bae
Pages 0-0

In this paper, a new methodology for identifying numerous elastic parameters of an orthotropic material from a single structural test is presented. At the heart of the methodology is the self-learning algorithm which is to extract various stress-strain relationships from a single structural test and train a neural network with the relationships in finite element framework. The constitutive matrix resulting ...

Keywords: neural networks, constitutive relationship, orthotropic material, material identification, self-learning algorithm

Developing a Convenient Balance Beam for Unknown Loads

Keon Young Yi, Yong Jun Kim, Sam Yong Chung, Song Soo Han, Sang Heon Lee
Pages 0-0

Balance beam, a controller that is built adopting the gyro effect, can freely control the attitude of an unstructured object by means of the position controlling of an inner gimbal. However in the former research, the weight (inertia) of a load should be known to issue a proper command for the gimbal, which makes it hard to operate the balance ...

Keywords: gyro effect, balance beam controller, construction equipment, load estimation, gimbal

Applying Simulation Technique to Model Design Iterations

Wei-Chih Wang, Tzong-Shiun Liau, Jang-Jeng Liu
Pages 0-0

Improving the scheduling of the design project can greatly reduce the total duration of the project. However, appropriately representing the schedule of a design project is complicated chiefly because the design activities often have different degrees of information dependencies between each other. That is, design process involves a number of iterations across the design activities. This work develops a simulation-based model ...

Keywords: design iteration, simulation, design schedule, and design process

Automatic Design Mechanism for Resource Distribution for Construction Operations Simulation

T. M. Cheng, M. Y. Hsu, P. C. Chen, C. C. Lin
Pages 0-0

A planner may use simulation for in the analysis and design of construction operation processes to optimize overall performance of a construction system. Normally, the basic elements used in construction operation process simulation system such as CYCLONE (CYCLic Operation NEtworks) are activities and queues. Activity is used to model the execution of the task work which consumes resources and time to perform. Queue acts ...

Keywords: GA, simulation, resource distribution

Integrated 3D Object Transformation and Simulation for Tower Crane Operations on Construction Sites

Muhammad Athar Niaz, Mohamed Al-Hussein, Hyoungkwan Kim
Pages 0-0

This paper presents a methodology for integrating 3D (three-dimensional) object transformations with simulation in order to build a 4D model to aid practitioners to visualize tower crane operations on the computer screen. Since the detailed project schedule is already divided into work-packages, the proposed methodology will further divide each work-package in to lift-packages. Each lift-package is geometrically designated for its ...

Keywords: 3D Transformation, Tower Cranes, Simulation, 3D-animation

The Integrated RMC Dispatching System Based on the Dispatching Center Approach

Chung-Wei Feng, Hsien-Tang Wu
Pages 0-0

Along with the development of the supply chain for the construction industry, an efficient system that coordinates cement trucks to deliver RMC (Ready Mixed Concrete) to various construction sites becomes important. This paper presents an integrated RMC dispatching model based on the dispatching center approach, which utilizes fast messy genetic algorithms (fmGA), simulation technique, and GPS to automatically and dynamically generate ...

Keywords: RMC dispatching, fmGA, GPS, optimization, simulation

Real-Time Adaptive Color Snake Tracker Using Condensation Algorithm

Kap-Ho Seo, Ju-Jang Lee
Pages 0-0

Motion tracking and object segmentation are the most fundamental and critical problems in vision tasks such as motion analysis. An active contour model, snake, was developed as a useful segmenting and tracking tool for rigid or non-rigid objects. Snake is designed on the basis of snake energies. Segmenting and tracking can be executed successfully by energy minimization. In this research, two new paradigms ...

Keywords: Active contours, adaptive color snake model, condensation algorithm, object tracking, image segmentation, energy minimization, optical flow, Kalman filter

Developing Analysis Models for Implementing Construction Enterprise Resource Planning System

Meng-Hsueh Lee, Meng-Hsueh Tserng
Pages 0-0

To face the worldwide competition and pervasively use of new information technologies, enterprise resource planning (ERP) systems are executed and implemented to enhance their competition capabilities. In order to implementing ERP systems successfully in construction industries, an appropriate analysis model ICE-PP (IDEF0 in Construction Engineering with The Proven Path) is presented in the paper and executed in the real case for the implement of ...

Keywords: Enterprise Resource Planning; Construction Industry; Analysis Models

Development of an XML Schema Repository System for Public Construction Information Sharing

Choung-Houng Wu, Shang-Hsien Hsieh, I-Chen Wu, Hui-Ping Tserng, Tzung-Yu Wen
Pages 0-0

The Public Construction Commissioner (PCC) in Taiwan is sponsoring a project to establish the mechanism for developing information standards, in terms of XML schemas, for public construction work and develop an XML Schema repository system for managing and publishing the standardized XML schemas. Parts of the ebXML (Electronic Business using eXtensible Markup Language) Registry Information Model (ebRIM), Version 2.5, proposed by OASIS (Organization for ...

Keywords: XML schema, Repository, Information standardization and sharing, ebXML, Public construction

An Object-Oriented Database for Project Cost Compilation

Chul Soo Kim
Pages 0-0

Larger construction companies generally have several on-going projects at one time, many internationally. The ability to make corporate decisions in a timely manner for these companies becomes critical to avoid costly corrective measures. The information necessary for making such decisions comes from a large pool of corporate data. In order to efficiently process large amount of data, an information model for multiple project ...

Keywords: Construction, Cost, IT, Database, Object-oriented, Information, Multiple Project Management

An Estimating Method of Worker's Task with 6-DOF Sensors

Soungho Chae, Naruo Kano
Pages 0-0

Recently construction workers tend to work alone and are getting older. In such working atmosphere, monitoring their works at the site is necessary for keeping task performance quality and accuracy. However, the management and evaluation of workers’ performance can only be done by supervisors’ physical observation. Understanding of their works will be easier if the data that shows what kind ...

Keywords: 6-DOF sensor, estimation, worker’s task, monitoring

Rapid Graphical Registration for 3D Complex Objects for Construction Workspace Automation

Yong K. Cho
Pages 0-0

Although considerable achievement has been made to the development of methods of extracting 3D geometrical information of objects from a scene, there are still major difficulties to visualize complex objects into descriptive CAD models. This paper introduces a new framework for rapid 3D modeling for complex planar objects which would enable automated material handling and semiautomated equipment control, and could significantly improve safety by ...

Keywords: construction automation, 3D, CAD, complex model, laser range finder

A Development of Interactive Task Generator Based on Task Location Information Analysis

Sangyoon Chin, Woo-Young Kang, Yea-Sang Kim, Kyungrai Kim, Jai-Do Shin
Pages 0-0

A daily report is one of the critical documents in construction projects, since it helps them keep track of various as-built information such as task performed, manpower, equipment, and material used on a daily basis. Despite the important role in progress management, the daily reporting process is time-consuming, and the representation of task information on daily reports are not effective enough to accumulate ...

Keywords: Daily Reports, Task, Location, Space, Information Model, Information System, Database

Model Development of the Material Tracking System for High-Rise Building Construction Project Using RFID Technology

Soon-Wook Kwon, Min-Woo Lee, Jae-Goo Han, Moon-Young Cho, Jae-Woo Park
Pages 0-0

Current study of material management on construction site insists that the ratio of material handling costs to total project costs varies in 30 to 80% depends on the type of construction and the cost of materials [1]. Site layout planning and material management are fundamental to reduce materials handling and re-handling costs and to enhance the efficiency of construction operation ...

Keywords: RFID, high-rise building, finishing work phases, procurement, material tracking

A Web Agent for Conceptual Cost Estimation of Highway Construction Projects

Wen-der Yu, Jia-wei Fu
Pages 0-0

Accurate cost estimation in the early stage of project lifecycle is essential for both effective financial planning and cost control of construction projects. Previous efforts by the research team have developed a Web-based Intelligent Cost Estimator (WICE) system. This paper describes a further step of WICE research to develop a special-purpose web agent for various highway construction project participants to utilize WICE. The proposed system ...

Keywords: Web agent; Neuro-fuzzy; Conceptual estimation; Highway construction; WICE

A Computer-Aided Evaluation System for Integrating Design- and Ordering-Principles into Product Models

Seung Yeon Choo
Pages 0-0

It is true that the commercial applications used in architectural offices have mainly focused on CAD as a drafting tool, although the primary functions of computers in architecture have been changed from the computer-aided drafting to its 2D or 3D graphic representation and in recent years to the collaborative design among different specialists, such as architects, engineers, construction managers, acoustical experts, and so on. ...

Keywords: Design- and Ordering-Principles, Collaborative Design, Product Model, IFC2x, Integration, CAAD

2003 Proceedings of the 20th ISARC, Eindhoven, Holland 2003

Robotics Construction in the 21st Century in Japan- IF7II

Junichi Yagi
Pages 43-48

In construction production field, since various type of disturbance factor is existed, it is difficult to manage related information by using conventional model. In this paper, a new concept of ?Parts and Packets unified architecture? is proposed. Data or information related to a product are carried by product itself and can be handled to manage whole system. It is a unified controller system ...

Keywords: Glue Logic, Parts and Packets, Active Data Base, RFID, Automated Handling, Dynamic Scheduling

IFD Building in Europe

Geert-Jan van den Brand, Hans van Gurchom, Ton Damen
Pages 55-60

This paper discusses the advanced concept of Industrial, Flexible and Demountable (IFD) building. The IFD concept aims to balance the interests of all construction industry stakeholders. The use of industrial building methods for offices, schools and factories has gained broad popularity in the practice. However, the building clients conventional view does not give high appreciation on uniformity in terms of modular and industrialised components ...

Keywords: building process innovation, industrial, flexible, demountable, customer satisfaction, collaborative engineering, comakership, product development

Automated Project Performance Control (APPC) of Construction Resources

Ronie Navon
Pages 78-81

Real-time control of on-site construction is a growing field still in its infancy. A model for automated control was developed, implemented and validated in the field, to verify if Project Performance Indicators (PPI) can be automatically measured and controlled. The concept behind this development is that indirect data ? locations measured automatically at regular time intervals ? can be collected automatically and converted into ...

Keywords: Automated Data Collection; Control; Manpower; Monitoring; Performance Measurement

A Multi-Element System of Surrounding Recognition And Objects' Localization for Unmanned Ground Vehicles

Franciszek Kuczmarski, Barbara Siemiatkowska, Andrzej Typiak
Pages 89-94

Equipping engineering machines and trajectory vehicles with automatic and remote control systems is necessary in case there is any environmental hazard for an operator i.e. environment conditions, an impact from fire field etc. It is particularly crucial when there is no possibility for any person to be in a machine or in its close surrounding. It applies to both extreme environment conditions (high ...

Keywords: Unmanned Ground Vehicle, Surrounding Recognition Systems, Laser Scanner, Visual Unit

Procedure Design for Experiments Towards Modeling of the Cutting Force in Excavation of Bulk Media

A. Hemami, F. Hassani
Pages 111-117

The work discussed in this paper concerns automation of excavation or automation of loading particulate media by an excavating machine. Based on the analysis of the process, knowledge of the force of cutting/digging is required for feedback purposes. The lack of a reliable and well established model for the force in question dictates the primary work of the development of such a model. ...

Keywords: Cutting/digging force, bulk media, model formulation, experiment

Trajectory Arrangement of Bucket Motion of Wheel Loader

Sarata Shigeru, Osumi Hisashi, Hirai Yusuke, Matshushima Gen
Pages 135-140

For autonomous scooping operation by wheel loader, a method for adequate arrangement of bucket trajectory will be proposed. In scooping operation of wheel loader by human operator, bucket motion includes several cycles of arm lift and bucket tilt alternately. Consequently, the tip of bucket moves on alternate short path of horizontal and vertical direction. In this paper, relation between resistance force and advancing direction ...

Keywords: Wheel Loader, Scooping, Bucket Control, Trajectory, Resistance force, Pile

Algorithms for Fitting Cylindrical Objects to Sparse Range Point Clouds for Rapid Workspace Modeling

Soon-Wook Kwon, Katharine A. Liapi, Carl T. Haas, Frederic Bosche
Pages 173-178

Current methods for construction site modeling employ large, expensive laser range scanners that produce dense range point clouds of a scene from different perspectives. While useful for many purposes, this approach is not feasible for real-time applications, which would enable automated obstacle avoidance and semiautomated equipment control, and could improve both safety and productivity significantly. This paper presents human-assisted rapid environmental modeling algorithms for ...

Keywords: construction automation; laser range finder; object fitting; object matching; workspace modeling

Experiences with the Design and Production of an Industrial, Flexible and Demountable (IFD) Building System

Frans van Gassel
Pages 209-214

The Dutch government encourages innovative construction by subsidizing cohesive industrial, flexible and demountable building (IFD) pilot projects. Industrial building concerns the process-related aspects of production, robotization, mechanization, automation, prefabrication, communication, etc. Flexible building involves products that are made in accordance with customer’s wishes and the possibility to make adjustments when the building is in use. Finally, demountable refers to the sustainability ...

Keywords: Building Site, Building System, Industrial Construction , Multidisciplinary Design

A Distributed Object Model for CSCW in the Construction Industry

Jos P. van Leeuwen, A. van der Zee
Pages 221-228

Information about products for the construction industry is increasingly often provided to designers in digital ways that enable them to apply the information directly in the design process. Digital product catalogues are provided using various media and formats and several initiatives are taken by the industry and by CAD developers to integrate this kind of information into CAD systems. Generally, current practice is ...

Keywords: Collaborative Design, Product Data Modelling, Concept Modelling, Distributed Object Model, Semantic Web.

Open Architecture for Site Layout Modeling

Farnaz Sadeghpour, Osama Moselhi, Sabah Alkass
Pages 229-234

This paper presents an overview of a computer-based site layout model and focuses primarily on the project setup phase. The developed model has four modules: user interface, database, project module, and layout module. Setting up the project in the proposed model is carried out by the project module, utilizing open architecture concept. The main advantage in the open architecture is to allow for ...

Keywords: CAD tools, Construction sites, Model design, Open architecture, Site layout planning

Emergent Coherent Behavior of Complex Configurations Through Automated Maintenance of Dominance Relations

N. John Habraken, J. Willem R. Langelaan
Pages 249-255

When we change a configuration by displacing or removing one object in it, desired adjustment of related objects usually follows established relational conventions. If, for instance, we displace a wall in which a window is found, we will expect the window to remain in the wall. At the same time we expect to be free to shift the position of the window in ...

Keywords: Design, Emergent behavior, Dominance relations, bi-directional editing

Applicability of Laser Scanning to the Measurement of 3-D Terrain Model for Street Design

Mika Jaakkola, Rauno Heikkilä
Pages 271-275

This paper describes the first results of R&D project "Intelligent Street" carried out in Finland. The aim of the project is to develop new measuring and design methods and tools for street design and construction. Usability and accuracy of laser scanning technology was tested in field-tests done in Itäreimarintie street pilot in Helsinki area June 2003. Implementations of measurements using helicopter based 3-D ...

Keywords: Street Design, Street Construction, Laser Scanning, Accuracy, Reliability

A Computer Aided System to Improve Dimensional Control of on-Site Construction

Rui Wu, Ger Maas
Pages 277-283

The increased use of prefabricated components, the complexity of new building shapes, and the speeding up of production in construction, demand an efficient and precise dimensional control. Meanwhile Information and Communication Technology (ICT) increasingly supports construction, among others, CAD systems and Total Stations, are being used for the purpose of dimensional control. In order to improve the dimensional control of on-site construction projects, this ...

Keywords: CAD Systems, Dimensional Control, Prefabricated Concrete, Total Stations, UML

A Multiple Criteria Decision Support Web-Based System for Sustainable Urban Development

E.K. Zavadskas, A. Kaklauskas, P. Vainiunas, J. Saparauskas, S. Raslanas, M. Gikys
Pages 295-300

The best sustainable urban development strategy of another country cannot just be copied. Strategies can only be adapted into a real economic, social, political, legislation/regulation and provision situation of the existing state. There is no such thing as a single sustainable urban development strategy to suit all societies and that could be applied to all countries. Based on the analysis of existing information, ...

Keywords: Decision Support Web-Based Systems, Multiple Criteria Analysis, Sustainable Urban Development

IFD Building Systems: a Model Simulating Advantages of Collaboration in the Case of Prefabrication in Concrete

Frank De Troyer
Pages 301-306

A characteristic of the building sector is that different actors (responsible for design, production, construction, use) are separated by markets. Those markets hide a lot of information. As an example the production costs of prefabricated concrete elements are considered. One market strategy of a production unit of those components can be to search for profitable contracts without providing information of the real cost structure. ...

Keywords: Industrial, Flexible and Demountable (IFD), Building System, Activity Based Costing, Life cycle costing

Web-Based an Emotion-Responsive Color Adaptation Process for Interactive Virtual Building Model

JuYeon Kim, HyunSoo Lee
Pages 353-362

The primary objective of this research is to realize an adaptable online architectural virtual reality (VR) model whose color attributes can be changed dynamically according to the identified emotional state of the user. We believe that the current approach to developing electronic based design environments is fundamentally defective with regard to support for multi-person multi-modal design interactions. This paper outlines new facilities within ubiquitous ...

Keywords: Emotion-Response, Virtual Reality Model, Color Adaptation

Towards a Comprehensive Feasibility Analysis for the Use of Robots in the Construction Industry

Derek Seward, Khaled Zied
Pages 399-405

Feasibility studies must cover different disciplines such as need-based feasibility, technological feasibility and economical feasibility. In the present work a comprehensive feasibility analysis model for the use of robots in performing construction tasks is presented. This model is mainly focussed on the need analysis in order to present criteria for decision making. The decision making is performed using the (give in full?)AHP process ...

Keywords: Robots, Automation, Feasibility analysis, The AHP Process, Safety, Risk Assessment, Simulation

A Risk Model for Pile Foundations

Thomas Bles, Saad Al-Jibouri, Jeroen van den Adel
Pages 421-426

This paper describes a model which has been developed for the purpose of assessing major risks associated with various pile foundation types and their resulting financial consequences. The work is based on a review of possible geotechnical sources of risks encountered during the placing of pile foundations. Both literature and experts are used in order to compile lists of risks associated with the ...

Keywords: Risk model, Geotechnical design, Pile foundations

Determining Internal Local Corrosion of Screwed Pipes Through Ultrasonic Testing

Toshio Fukuda, Shintaro Sakamoto, Fumihito Arai, Yasuhisa Hasegawa, Futoshi Kobayashi, Hironori Yui, Yasunori Abe
Pages 465-470

In diagnosing air-conditioning pipe deterioration, it is especially important to inspect screwed parts because their original thickness is thinner than that of straight parts and it is comparatively easy for leakage to occur if there is local internal corrosion. Usually, a radiographic test is used, but this method requires a licensed person to carry out the inspection. We examined a method of ...

Keywords: Surface SH Wave, Screwed Part of Pipes, Ultrasonic Test, Estimation of Corrosion States

Development of a Universal Position Interface, Applied for Reliable and Interactive Access from Distant Locations to Central Database Information Through Unambiguous Position Key in the Construction Industry. (UPIA)

Hans ten Brinke
Pages 493-496

To improve the availability of reliable information on an arbitrary location in or outside a construction project and to exchange information faster, more efficient and in an interactive way HBG developed the UPIA-device. With this handheld device location based information can be generated on site and can be used interactive by reliable and interactive access to a central database on a distant location. ...

Keywords: GPS, information management, location related data, portable computers, position interface, product model database, support systems for monitoring

A Model for Construction Project Management Extranets

Nuria Forcada, Miquel Casals, Xavier Roca
Pages 537-542

In AEC each participant of a construction project (designer, the constructor, etc) takes part in many other projects and each of these groups of participants are probably working in collaborative spaces. What happens then, when for instance the designer must hold as many collaborative spaces as projects he carries on? In the construction sector, each project is unique and the group of people, ...

Keywords: guidelines, extranets, document management

A Construction Process Model for Implementing Constructability in Construction

Jeroen Langkemper, Saad Al-Jibouri, Isabelle Reymen
Pages 551-556

In construction, failure of design professionals to consider how a builder will implement the design can result in scheduling problems, cost escalation, delays and disputes during the construction process. The integration of construction knowledge and experience during planning and design is termed here as ‘constructability’. Though many design professionals in the Netherlands may informally apply such concept in their works, most design firms however ...

Keywords: Constructability, construction planning, construction process, design process, process model, urban construction project

Electronic Checklist of Risk Items on Construction Projects

O. Moselhi, A. Hassanein
Pages 557-562

Risk management in construction encompasses four main phases; risk identification, quantification, mitigation and control. Risk identification has been recognized as the most crucial phase of a successful risk management program. This paper briefly describes a model, designed to automate the risk identification process. The model facilitates the development of an electronic checklist of items that are likely to give rise to risk on construction ...

Keywords: Risk identification, risk management, construction management

The Use of a Simulation Model as a Game for Teaching Project Control in Construction

S.H. Al-Jibouri, M.J. Mawdesley
Pages 563-568

Construction management education, like most education and indeed, most things, is changing rapidly. There is a move towards student centred learning which is intended to allow students to gain knowledge at their own pace and develop transferable skills during the course of their education. In Construction Project control is an essential task of management of projects and good planning and control have long been ...

Keywords: Construction; Management Games; Project Control, Simulation

Estimating the Dependability's in Constructions

Calin Ciufudean, Constantin Filote, Adrian Graur, George Mahalu
Pages 577-581

In this paper an approach for the throughput evaluation of the construction manufacturing systems is presented. The throughput is evaluated with a heap-based algorithm for the Petri nets model of the construction systems. The Petri nets model is a stochastic one, and the firing rate of the transitions are calculated with Markov chains models of the component subsystems of the manufacturing system. The ...

Keywords: Stochastic Petri nets, Markov chains, system availability, heaps of pieces

Probabilistic Model Simulation in Cement Process Fabrication at Casial Factory

Susana Arad, Victor Arad
Pages 589-593

This paper will propose to investigate results obtained from automated measuring process control of temperature in cement fabrication with the simulation modeling by probability distribution functions and conducted at yield goodness of fit results. The simulation’s results enable the comparison with the data obtained by automated real-time project process data which are used in classical analyses of manufacturing process for economical ...

Keywords: Distribution, functions, modeling, probability, simulation

Construction Conceptual Cost Estimates Using Evolutionary Fuzzy Neural Inference Model

Min-Yuan Cheng, Chin-Jung Huang
Pages 595-600

The conceptual estimate plays an essential role in project feasibility study. In practice, it is performed based on estimators’ experiences. However, due to the inaccuracy of cost estimate, budgeting and cost control are planned inefficiently. In order to increase the estimate accuracy, this study employed the Evolutionary Fuzzy Neural Inference Model (EFNIM) to develop an Evolutionary Construction Conceptual Cost Estimate Model (ECCCEM). The ECCCEM ...

Keywords: Conceptual Estimate, Fuzzy Theory (FT), Genetic Algorithm (GA), Neural Network (NN), Order of Magnitude Estimate

Daily Report Module for Construction Management Information System

Yan-Chyuan Shiau, Wen-Chian Wang
Pages 603-609

The profit of Construction Industry has been tremendously reduced for recent years in Taiwan. In order to survive in this difficult environment, “Management” becomes the key issue to achieve company’s target. We need a powerful tool that can help us to handle complicate process such as estimation, bidding, purchasing and site-management in the life-circle of a construction project. In this research, we develop ...

Keywords: Cash Flow, Construction Management, Daily Report, Object Oriented, Site-Management

Study of Data Exchange for Use by Construction Information Systems

Tadashi Yoshida, Hirohumi Hirashita
Pages 611-616

Information technology (IT) that is achieving astounding progress has been applied to rationalize construction project management and is expanding the potential for the automation and use of robots in construction work. But the development of IT based systems has often resulted in cases where it is difficult for multiple systems to share electronic data because these systems were developed independently by different makers for ...

Keywords: Construction Work, Construction Information System, Data Exchange, Data model, Data Exchange Standards

Monitoring Lifting Equipment for Automated Progress Control: A Feasibility Study

Rafael Sacks, Ronie Navon, Aviad Shapira, Irina Brodetsky
Pages 637-642

Reliable and timely information describing up-to-date performance is a prerequisite for effective management of construction. Existing methods for on-site data collection are labor-intensive, subjective, and the data are frequently available only after activities have been completed. Monitoring of the main lifting equipment on construction sites can provide real-time, low-cost and objective data for interpretation within an APPC system. This paper reports on a field ...

Keywords: Automated data collection; Building project model; Construction cranes; Project control

2002 Proceedings of the 19th ISARC, Washington, U.S.A. 2002

Collaborative Fire Protection Engineering Based on Software Agents

Uwe Rueppel
Pages 3-7

This paper presents a new approach with software agents to support the task of preventive fire protection engineering. Agents are stationary or mobile software components to support the user in his planning tasks according to their specific design. Agents can act autonomously within their environment, which means that they can solve problems without the need of control through a human being or another system. In ...

Keywords: Collaboration platform; fire protection engineering; informatio technology; software agents

The Role of the CIMsteel Integration Standards in Automating the Erection and Surveying of Structural Steelwork

K. Reed
Pages 15-20

The second release of the CIMsteel Integration Standards (CIS/2) has been endorsed by the American Institute of Steel Construction as the standard for the electronic exchange of structural steel project information for the North American steel design and construction industry. Derived from the deliverables and experiences of the Pan-European Eureka CIMsteel Project and published by the Steel Construction Institute in the UK, the CIS/2 was ...

Keywords: automated construction, integration, product data model, project delivery, structural steelwork

Development of an Electronic Acquisition Model for Project Scheduling (e-AMPS) Using Java and XML

W. Lin
Pages 41-46

During the construction phase, participants in a multi-contract project acquire external real-time scheduling information from other involved parties and use this to make appropriate decisions in regard to project control. There are two major obstacles to project participants gaining efficient access to external information in a distributed data environment: (1) the variety of data structures that project members may use, and (2) lack of ...

Keywords: Internet; WWW; Project Management; Intelligent Agent; Information Integration

An Automated Selecting Subcontractor Model in e-Commerce

P. Lin
Pages 47-53

From the observation of organization changes in digital economy, the features of organization expansion from its concentrated kernel to the globalized ecommerce scope is identified to rebuild the relationships and connections between the whole subcontracting supply chain for construction projects. An automated subcontracting selection model is proposed and the final decision-making for selection will be approached by Multiple Attribute Utility Theory. Following this methodology, it can ...

Keywords: utility theory, e-commerce, subcontract, decision-making

Capitalizing on Early Project Opportunities to Improve Facility Life-Cycle Performance

C. Kam, M. Fischer, R. Hanninen, S. Lehto, J. Laitinen
Pages 73-79

This paper presents the findings from the design and construction of the Helsinki University of Technology Auditorium Hall 600 (HUT-600) in Finland. Running simultaneously with the construction project, an international research partnership extensively documented and analyzed the use of product modeling and interoperability standards for information exchange. The project team improved design cycle times and minimized data re-entry through an array of design, visualization, simulation, and ...

Keywords: Life-Cycle Analysis, Pilot Project, Product Model

Dynamic Change Management for Fast-Tracking Construction Projects

M. Park
Pages 81-89

Uncertainties make construction dynamic and unstable, mostly by creating non value-adding change iterations among construction processes. Particularly, when a project is fast-tracked without proper planning, those change iterations can cause the disruption of the construction process. For this reason, to effectively handle fast-tracking change iterations involved in fast-tracking need to be identified, and the dynamic behavior of construction resulting from those change iterations must be ...

Keywords: Change, Fast-tracking, Feedback, Rework, Simulation, System Dynamics

Simulation-Facilitated Factor-Based Approach for Cost Correlation Evaluation

W. Wang
Pages 97-102

Project cost becomes increasingly variable if many cost items for a construction project are correlated, and this can increase the uncertainty of completing a project within a target budget. This work presents a factor-based computer simulation model for evaluating project costs given correlations among cost items. Uncertainty in the total cost distribution of an item is transferred to several factor cost distributions according to qualitative ...

Keywords: Computer Simulation; Cost Estimating; Risk Factor; Uncertainty

Development of an Information Model to Enhance Integration and Coordination in the Construction Projects

A. Caballero, S. Ahmed, S. Azhar, M. Barcala
Pages 123-128

Construction is generally believed to be a fragmented industry and increased integration and coordination among different processes and parties is considered by many experts as one of the ways that can resolve most of the problems created by fragmentation. Process inefficiency and a lack of effective quality control in the products of construction are often attributed to fragmentation. The recent developments in information and ...

Keywords: Construction, Information Technology, Coordination, Integration, Modeling

Development of an Integrated Cost Estimation and Cost Control System for Construction Projects

S. Azhar, S. Ahmed, A. Caballero
Pages 129-134

Today, most of the construction companies are using computer-aided softwares for cost estimation and cost control. The cost estimation is done before the construction begins while the cost control is performed during the construction period. The organization which controls the cost could be different from the organization which prepares the cost estimate. Moreover, different softwares are available for cost estimation and cost control. This ...

Keywords: Cost Estimation; Cost Control; Cost Integration; Cost Engineering; Construction Softwares, Data Modeling

Automated Data Acquisition and Planning of Highway Construction

A. Hassanein, O. Moselhi
Pages 149-154

This paper briefly describes a model, designed to automate data acquisition and analysis for planning and scheduling highway construction projects. The paper briefly describes the proposed model, and focuses primarily on its automation aspects. Geographic information systems is employed to analyze spatial data and estimate cut and fill quantities. The model also stores activities typically involved in highway construction and automatically generates the precedence network ...

Keywords: automation; earthmoving; geographic information systems; highway planning

Monitoring Construction Equipment for Automated Project Performance Control

R. Sacks, R. Navon, A. Shapira, I. Brodetsky
Pages 161-166

The ability of company managers to respond to variations in performance in construction projects is severely limited by the time delay common in existing information and control systems in reporting schedule, budget and quality deviations from plan. We propose a system for interpreting data acquired automatically by monitoring the activity of major construction site equipment, such as tower cranes, concrete pumps, etc. The primary ...

Keywords: Automation; Construction equipment; Information technology; Monitoring; Project performance control

Experiences with the Design and Production of an Industrial, Flexible and Demountable (IFD) Building System

F. van Gassel
Pages 167-173

The Dutch government encourages innovative construction by subsidizing cohesive industrial, flexible and demountable building (IFD) pilot projects. Industrial building concerns the process-related aspects of production, robotization, mechanization, automation, prefabrication, communication, etc. Flexible building involves products that are made in accordance with customer?s wishes and the possibility to make adjustments when the building is in use. Finally, demountable refers to the sustainability of the building. This ...

Keywords: Building Site, Building System, Industrial Construction , Multidisciplinary Design

Genetic Algorithms for Accessing Engineering Performance

L. Chang, L. Zhang
Pages 185-190

The performance of engineering activities has significant impacts on the successfulness of implementing industrial construction projects. Improving engineering performance can lead to better project outcomes. Previous studies on engineering performance improvement have either focused on the use of certain techniques or products, or looked at specific engineering processes or areas. There has been a lack of a systematic and analytical approach that improves engineering performance ...

Keywords: engineering performance, genetic algorithms, artificial neural networks

Mixed Reality Benefits for Design Perception

P. Dunston, X. Wang, M. Billinghurst, B. Hampson
Pages 191-196

Design visualization is key to the communication and shared perception of designs and is essential for meaningful design development and collaborations. The initial development of an Augmented Reality Computer Aided Drawing (AR CAD) system for enhancing visualization of models created in standard CAD was presented at the 17th ISARC. AR CAD features a more natural mode for changing views of the model and completely ...

Keywords: 3D CAD; Augmented Reality; Mixed Reality; spatial cognition; visualization; Virtual Reality

Motion Planning Taking Into Account the Dynamic Model of Vehicles: Application to the Compactor

C. Lemaire, P. Vandanjon, M. Gautier, F. Peyret
Pages 223-228

Motion planning is a necessary step before automation in road construction. This paper deals with motion planning for compactors. The compactor is an articulated frame steering vehicle used in road construction. Generally, motion planning uses the kinematic model of the robot. In the case of the compactor, this model is far away from reality because it does not take into account compactor masses and particular ...

Keywords: Compactor, Mobile robots, Motion planning, Dynamic model

Error Modeling for Automated Construction Equipment

Y. Cho, C. Haas, S. Sreenivasan, K. Liapi
Pages 255-262

This paper introduces the statistical error modeling approach for a computercontrolled large-scale manipulator (LSM). The LSM is sufficiently representative of several types of construction equipment to be able to serve as a general test bed. In the analysis, three factors which are measurable in real time: distance, hydraulic pressure, and payload, were varied to determine their influence on position errors in the LSM. It ...

Keywords: automation; kinematics; manipulator; position error; regression analysis

Generating and Maintaining Activity-Based Cost Estimates with Feature-Based Product Models

S. Staub-French, M. Fischer
Pages 287-292

Understanding how the building design influences construction costs is a challenging task for estimators. Estimators must recognize the design conditions that affect construction costs and customize the cost estimate accordingly. Estimators have different preferences for how and when to adjust a project?s activities, resources, and resource productivity rates that form the basis of a cost estimate. Current tools and methodologies lack ways to help ...

Keywords: Cost Estimating; Information Technology; Construction; Product Features

Standardization of Data Flows on Earthworks and Road Pavement Sites Using Information Systems

F. Peyret
Pages 305-311

The work described in this paper is the follow-up of the first analysis presented in the previous ISARC on the same theme. The paper start by recalling the background with is the ISO TC-127 WG2 standardization initiative. Then he applies a basic logical model of site information system for civil-engineering sites to various existing or under development such European systems (CIRC and OSYRIS) to identify and specify the main ...

Keywords: standardization, site information systems, civil-engineering, computer integrated construction, data flows

An UML-XML-RDB Model Mapping Solution for Facilitating Information Standardization and Sharing in Construction Industry

I. Wu, S. Hsieh
Pages 317-321

To facilitate information standardization and sharing in Construction Industry, this paper presents a simple but effective approach that maps the UML (Unified Modeling Language) object-oriented information model related to a construction project to an XML schema, then to a Relational DataBase (RDB) schema. First of all, the mapping between UML model and XML schema is discussed since UML has been a popular tool to ...

Keywords: UML, XML Schema, RDB, Information Standardization and Sharing

Data Interpretation from Leuze RotoScan Sensor for Robot Localisation and Environment Mapping

D. Seward, S. Quayle, K. Zied, C. Pace
Pages 343-348

Two applications for the use of a laser-scanning device are currently under investigation at Lancaster University. Lancaster University Computerised Intelligent Excavator (LUCIE) is an autonomous excavator which navigates using GPS and compass readings. Work is currently concentrating on navigational safety, for which the rotoscan sensor is employed for obstacle detection, and for possible self-localisation and environment comprehension in ambiguous operational states. Starlifter is a robotic arm ...

Keywords: collision detection; navigation; robotics; sensors; surface estimation

On-Board Data Management Structure for Advanced Construction Machinery Support

J. Jurasz, A. Ligier, A. Horn, J. Wendebaum
Pages 409-414

A flexible on-board data management structure for a construction machine and interfaces between its elements are discussed. The solution, which grants the required flexibility and enables advanced, distributed functions is discussed on the example of the road paving process.

Keywords: CANopen; digital work documentation; computer integrated road construction; road product model; site information systems; OPC; XML

Model for Automated Road Construction Control

R. Navon, Y. Shpatnisky, E. Goldschmidt
Pages 425-429

A survey of current practices revealed that very little control is normally done in earthmoving management. A model to control road construction projects was developed. The model is based on the concept of automatically measuring performance, by measuring locations at regular time intervals, and converting them into controlled parameters. According to this concept, control algorithms convert the measured locations to produce two types of real-time ...

Keywords: Automated Data Collection; Benchmarking; Control; Earthmoving; GPS; Monitoring; Road Construction

Force Sensor by Driving Hydraulic Cylinders: Identification of Inertial Parameters and Tests

F. Malaguti, S. Zaghi
Pages 431-436

Force feedback sensors are useful for the planning of robotic digging trajectories. In particular, when combined with force-control algorithms it becomes possible to sense buried objects and to determine the weight of excavated materials. The proposed force sensor system makes use of hydraulic cylinder pressure and thereby measures machine force indirectly. Successful implementation of such an approach will eliminate the need for expensive, direct-force sensors. ...

Keywords: digging robot, force sensor, identification, inertial parameters

Adaptive Control of a Construction Manipulator

V. Gradetsky, M. Rachkov, M. Pushkin
Pages 449-454

The paper describes an advanced control technique that uses a self-adjusting controller. The technique allows changing control parameters of the manipulator according to different technological forces and disturbances acting to the end-effector of the manipulator while performing surface treatment construction operations such as cleaning and polishing. The system is asymptotically stable for the phase error and can be implemented on a base of existed industrial ...

Keywords: adaptive control; construction manipulator, parametrical error; reference model; self-adjusting controller

Computer Technologies in Construction Robots Control

T. Bock, D. Parshin, R. Neudorf, A. Bulgakow
Pages 501-504

Construction is of great interest for applying practical and theoretical results in the field of robotics and computer technologies. The paper presents the composition and special features of kinematics and dynamic models of construction robots, control algorithms synthesis in terms of synergetic approach, planning of robot's movements based on computer techniques. Recommendations on computer technologies application, construction robots control, control programmes development and operators teaching ...

Keywords: automated control system, construction, computer technologies, kinematics, dynamic, model, robot.

Representation and Integration of As-Built Information to IFC Based Product and Process Models for Automated Assessment of As-Built Conditions

B. Akinci, F. Boukamp
Pages 543-548

Frequent assessment of as-built conditions is necessary for active project control during construction. Assessment of as-built conditions involves collecting accurate as-built information and comparing the as-built information collected with given design and schedule information. Currently, different technologies exist for collecting accurate and comprehensive as-built information. The as-built information generated through these technologies is then manually evaluated by comparing it to the design information. This process ...

Keywords: Industry Foundation Classes, integrated design and as-built models, construction

Situation-Aware Interface Design: An Interaction Constraints Model for Finding the Right Interaction for Mobile and Wearable Computer Systems

C. Burgy, J. Garrett
Pages 563-569

The design of mobile and wearable computing devices involves decisions about how the user interacts with the hardware and software composing the device. Since applications of, and usage environments for, mobile and wearable computers has varied greatly, it has been difficult to build on previously collected design knowledge. The Interaction Constraints Model described in this paper offers an application-neutral and domain-independent approach for comparing different applications and usage scenarios. The Interaction ...

Keywords: Design Constraints; Human-Computer Interaction; Industrial Applications; Mobile Computers; Wearable Computing

2001 Proceedings of the 18th ISARC, Krakow, Poland 2001

Software Architecture for Cooperative Buildings

Klaus Bergner, Andreas Rausch, Marc Sihling, Alexander Vilbig, Katja Popp, Thomas Reicher
Pages 1-8

In this paper, we propose an overall software architecture for the application domain of cooperative buildings. Based on an analysis of the predominant functional requirements, we develop a business-oriented conceptual framework, establishing a common understanding of a cooperative building?s entities and their relations. The framework is then mapped to an abstract technical software architecture with suitable system components and interactions. The resulting overall architecture ...

Keywords: cooperative buildings, software architecture, business-oriented framework, componentware

A Theoretical Sensor Model for Hydro Spurt Concrete Cutting

Alexej Bulgakow, Galina Dibrowa, Alexander Drownikow
Pages 1-4

A theoretical sensor model of a nozzle-cover type intended for control and often change a distance from a nozzle cut to a treated surface is considered in this article. The specified feature of this sensor that it can be used as a transformer of a water spurt formed in a circle while flowing from a nozzle.

Keywords: sensor, building, model, hydro spurt cutting instrument

System Modeling of Object-Oriented Construction Process Simulations

Rong-yau Huang, Bing-Chi Hsieh
Pages 1-5

The CYCLONE methodology has become well established and its six standard modelling elements provide a simple, straightforward tool for the study of various construction operations. Many construction-specific simulation systems employ CYCLONE or CYCLONE-like symbols for system modelling. However, CYCLONE?s simplicity also limits its functionality in model construction operations in terms of realism and accuracy. This research took advantage of recent developments in object-oriented design to ...

Keywords: simulation, modelling, construction, CYCLONE

Universal Digital Environment Model for Computer Integrated Road Construction

Jaroslaw Jurasz
Pages 1-6

As the computer supported road construction systems evolve, the issues of compatibility and inter-operability start to play more important role in than the limitations posed by computing resources. The paper discusses modelling methods currently in use and presents a novel, efficient and flexible environment description for on-board systems in this context. The results of its application, conversion methods and data exchange issues are discussed Extensively.

Keywords: computer integrated road construction, ribbon, digital terrain model, environment model, road product model, on-board computer

Development of Adaptive Roof Structure by Variable Geometry Truss

Kohei Kurita, Fumihiro Inoue, Noriyuki Furuya, Takashi Shiokawa, Michihiro Natori
Pages 1-6

Moveable structure has been used for drawbridge and all-weather stadium with retractable roof. These structures move on the rail or turn around the hinge, and these behaviours are monotony and simplicity. However, near future, the shape of construction changes variously as harmonising with surroundings. In order to realize new constructions, we found VGT (Variable Geometry Truss) developed for foldable parabolic antennas of artificial satellites in ...

Keywords: VGT, Adaptive Structure, Roof Structure, Shape Control, and Hemisphere Dome

Knowledge-Based Generation of Operational Procedures for Construction of Wood Structures

Nakajima Masao
Pages 1-6

This paper focuses on non-numerical information such as operational procedures for processing and assembling members used in wooden construction systems and aims at developing a knowledge-based system (KBS) for generation and control of this information. The process involves dividing the building construction system into basic units, defining and describing those units, and then inputting this information into a computer-based KBS. The system then produces ...

Keywords: knowledge-based system, generation system of activity, operational procedures, building construction system, wood structure, Prolog

A Three-State-Model of e-Enterprise for Construction Contractor - A Case Learned in Taiwan

Shin-Jung Pan, Shu-Yi Kuo, H. Ping Tserng
Pages 1-5

Taking advantages of the advanced information technology, more and more construction businesses begin to adopt the large scale information system, such as web-based project management system, Enterprise resource planning (ERP), supply chain management (SCM), electronic knowledge management (eKM) and so on, to improve the management efficiency and productivity. However, it seems there is no effective model for evaluating and implementing an e-Enterprise. A survey ...

Keywords: No keywords

The NNM - Method and a Model of Co-Operation between an Automated Center with Concrete Mixing-Plant and Truck-Mixers

Andrzej Wieckowski, Wladyslaw Buczkowski, Miroslaw Skibniewski
Pages 1-6

The Network Numerical Modelling (NNM) methods was developed to aid in project mapping (representation), planning, analysis and control

Keywords: Project model, Network, GERT, construction

A Model of Supply Chain Management for Construction Using Information Technology

Yu-Cheng Lin, H. Ping Tserng
Pages 1-6

The objective of supply chain management is to quickly obtain real-time information, minimize cost, increase levels of service, improve communication among supply chain components, and increase flexibility in terms of delivery and response time. In the traditional construction industry, construction processes are always labor-intensive, manual, and time-consuming. With the advent of the information technology, it is possible to achieve the supply chain management for ...

Keywords: Information Technology; Supply Chain Management; Internet; Intranet; Extranet; Mobile device; PDA

Manipulator for Removing Debris and other Work after Extreme Events

Victor Balagula, Edvard Smoljanitski, Oleg Sanko
Pages 1-3

This paper presents a description of the basic model of a manipulator for removing debris and work after extreme events. The manipulator consists of different tools which can make all necessary operations to save people in extreme situations.

Keywords: manipulator, blockage, debris, motor-powered grab, two-part bucket

Estimating the Degree of Compaction of Asphalt Using Proprioceptive Sensor and Dynamic Model

Arnaud Delclos, Pierre-Olivier Vandanjon, François Peyret, Maxime Gautier, Michel Froumentin
Pages 1-6

The paper is about a new method, aiming at estimating in real time the compaction degree reached by an asphalt compactor. This method was developed at LCPC in the frame of a European project called OSYRIS (Open SYstem for Road Information Support). This method is based upon various measurements using proprioceptive sensors and a dynamic model of the machine, necessary to extract the desired ...

Keywords: dynamic model, asphalt compaction, automation, resistive effort

Open System for Road Information Support

Agata Ligier, Johannes Fliedner, Juha Kajanen, François Peyret
Pages 1-6

Open System for Road Information Support is an open, supportive system for construction, maintenance and rehabilitation of a road, mainly focused, but not limited to the flexible pavement (asphalt). The project aims towards an European standard for a work documentation and work support system for a road worksite.

Keywords: road construction, site information systems, digital work documentation, road product model, quality management , XML, CAN, Web

The Influence of Structure of Mobile Construction Manipulators on their Kinematic and Dynamic Characteristics

Stanislaw Michalowski, Andrzej Sobczyk, Witold Trzaska
Pages 1-6

For the purpose of studies, a model of a wheeled, construction manipulator was developed and dully analysed.

Keywords: construction manipulators, flexibility, active damping, position control

Standardization of Information System for Civil-Engineering Sites

François Peyret, Hiroaki Miyatake
Pages 1-5

More and more civil-engineering sites, and especially road construction are experimenting all over the world new kind of systems aiming at improving quality and efficiency of the construction tasks. These systems make profit of the new technologies of information and communication, still rarely used on the sites. Most of them bring partial solutions but are not compatible. This diversity, of shape and sometimes of principles, ...

Keywords: information technologies, civil-engineering sites, computer integrated construction, product model, logical analysis

Motion Control for Bucket of Wheel Loader Based on Shape of Pile and Resistance Force

Shigeru Sarata, Hisashi Osumi, Yusuke Hirai, Gen Matsushima, Takashi Tsubouchi
Pages 1-6

For autonomous scooping operation by wheel loader, a method for trajectory generation and motion control of bucket at scooping operation is proposed. Prior to scooping, threedimensional shape of pile is measured by stereovision system with two CCD cameras. The initial trajectory model is modified according to the shape of pile. During scooping, the control values for the actuators are arranged based on the resistance ...

Keywords: Scooping operation, Wheel loader, Scooping trajectory, Bucket motion control, Column model, and Trajectory planning

2000 Proceedings of the 17th ISARC, Taipei, Taiwan 2000

Automated Rebar Constructibility Problems Diagnosis: A Concept-Proving Prototype

Ronie Navon, Aviad Shapira
Pages 1-6

The paper describes a rebar constructibility model, which was developed in an object-oriented graphic environment. The model is intended to be used during the design phase to automatically diagnose potential rebar-related constructibility problems (the Diagnosis Module), as well as to offer solutions and implement them (the Correction Module). The Diagnosis Module was implemented first in a concept-proving prototype. The proposed model searches for constructibility problems ...

Keywords: automation, constructibility, construction, design coordination, reinforcement, reinforced concrete

Fuzzy Neural Network Model for Mark-Up Estimation

Li-Chung Chao, Min Liu
Pages 1-6

Mark-up estimation involves many uncertain and complex factors making it difficult to model them using conventional mathematical methods. Artificial neural networks (ANNs), which can adapt themselves to training data, have recently been applied to mark-up estimation. However, there are two major drawbacks of this application; firstly, an ANN system is unable to explain why and how a particular recommendation is made, and secondly the prediction ...

Keywords: mark-up, neural network, fuzzy logic, fuzzy neural network, construction management.

Agent-Based Approach for Intelligent Automated Landfill Operation System

Sung-Keun Kim, Kyo-Jin Koo, Jeffrey S. Russell
Pages 1-6

Workers and operators in sanitary landfill sites face the health risk due to the constant exposure to the toxic solid, liquid, and gaseous by-products of the waste materials. One solution to this problem is automation technology that can increase productivity and quality as well as safety. But, developing an automated system for landfill operations is usually a complex task due to the dynamic aspect ...

Keywords: Automation system, Landfill operation, Multi-Agent, Task allocation

Man-in-the-Loop Training Simulator for Hydraulic Elevating Platforms

Erno Keskinen, Mika Iltanen, Teemu Salonen, Sirpa Launis, Michel Cotsaftis, Jorma Pispala
Pages 1-8

Hydraulic elevating platforms are commonly used machinery in assembling outside covers to buildings, washing windows etc. Evacuation of people from high places as well as fire-fighting are also well known service areas of elevating platforms. A team of researchers, designers, and end-users has introduced a concept of a man-in-the-loop simulator to be used in operator training for time-critical and accurate boom maneuvers. The hardware ...

Keywords: Hydraulic booms, elevating platforms, training simulators, virtual environments

Cost Analysis and Formulation of Cost Models for Two-Storey Buildings Construction in Malaysia

Ng C. Hock, Zakaria Harun, Hamzah Abdul-Rahman
Pages 1-7

This paper will describe the ongoing research work which is aimed at producing a cost forecasting and planning model most representative of the building in Malaysia. Due to the limitation of data and time, the model is targeted for a particular type of building. Its techniques can however be expanded to other types of buildings. Data was collected from the two-storey residential building projects. ...

Keywords: Cost Modelling, Elemental Cost Analysis, Cost Planning, Cost Forecasting, Cost Control, Monte Carlo Simulation.

Application of Simulation Tool for Strategic Decision Evaluation in Life Cycle Project Management

Hemanta Kumar Doloi, Ali Jaafari
Pages 1-6

This paper focuses on a new application for simulation as a tool specifically designed for holistic evaluation of project functionality within a life cycle project management framework. The authors describe a methodology for development of the aforementioned simulation tool, dubbed as DSMS (Dynamic Simulation Modeling System), devoted to Project Management decision making. The simulation model can act as a dynamic vehicle for optimizing technical ...

Keywords: dynamic simulation, optimization, life cycle project management.

Fuzzy Logic Methodology for the Comparison of Construction Firms

Amaury A. Caballero, Jose D. Mitrani
Pages 1-5

General contractors, private owners, and public agencies are often faced with a problem; how to evaluate bids from competing construction organizations with respect to important, but difficult to qualify variables other than the lowest price. The paper presents a methodology for comparing the qualifications and work capacity of construction firms using a fuzzy logic model. The paper discusses the process of choosing an appropriate ...

Keywords: Construction Management, Fuzzy logic, Decision-making.

An Interactive Cost-Schedule/Payment-Schedule Prototype Integration Model for Cost-Flow Forecasting and Controlling

Hong Long Chen, Wei-Tong Chen
Pages 1-5

One of the most important aspects of running a construction business is cash flow management. More and more construction companies collapse due to deficiency of liquidity to support their daily activities instead of the failure of the engineering knowledge and skills. Hence, the need for cash flow management has become the consensus among researchers and practitioners alike. Nevertheless, to develop a ...

Keywords: integration model, cost-flow, cash-flow, forecasting, controlling

Enterprise Modeling of A/E/C Firm

Ji Sang Park, Teresa M. Adams, Pisun Sirisuksakulchai
Pages 1-6

Dynamic nature of the A/E/C industry, multiple project participant, and disconnected communication between project participants make it difficult to develop integrated information systems for the A/E/C industry. This paper focuses on defining of interrelationship between data model and process model for construction project management, as a step toward fully integrated project management. The paper presents the Information Engineering method for developing an Information Strategy Plan ...

Keywords: Information Engineering, A/E/C, Enterprise Modeling, System Integration

Position Modelling of Planar Two-Link Manipulator with Electrohydraulic Control System

Ryszard Dindorf
Pages 1-6

The paper deals with the problems of kinematic and dynamic modelling, simulation and experimental test of the planar two-link manipulator with the electrohydraulic control. The kinematic model was constructed on the basis of the kinematic relations and the dynamic model by means of bond graphs. On the test stand the dynamic characterisation and identification of the model mechanism was carried out and the accuracy of ...

Keywords: planar manipulator, position modelling, electrohydraulic control system

Phonon Mechanisms: A Know-Why for Vibration in Flexible-Link Robot Arms

Pitikhate Sooraksa
Pages 1-5

Utilizing theory of the secondary quantization, a study of vibration behaviors in flexible-link robot arms is possible in microscopic viewpoints. This paper studies the relation of vibration related to phonon coupling interaction by means of Green?s function method beginning with energy model. Results confirm analytically the existence of the relationship between the macroscopic study employing a classical beam theory such as the Euler-Bounouli theory ...

Keywords: flexible arm, vibration theory, phonon mechanism, vibration behavior, flexiblelink robot

A Bicycle Robot: Part 1 Modeling and Control

Pitikhate Sooraksa, U. Sritheeerawirojana
Pages 1-5

In this paper, a simple fuzzy logic based intelligent architecture is developed for controlling a bicycle robot. The approximated model for membership functions and control gains can be obtained by simply considering the robot as an inverted pendulum in 3-dimensional space. The obtained model is merely a conceptually estimating one because the mismatch modeling and the uncertainty will be taken care by the intelligent ...

Keywords: bicycle robot, fuzzy logic control, modeling, intelligent control, two wheeled robot

Analysis of Risk in Construction Automation Investment

Mark Taylor, S. C. Wamuziri, I. G. N. Smith
Pages 1-6

The decision to invest in construction automation rests upon the financial and intangible benefits. Although a selection of associated costs may be obtained from suppliers or estimated using managerial judgement there is an inherent level of uncertainty surrounding the annual cash flows. Analysis of investment risk may play an important role in the introduction of automated construction technology to UK construction ...

Keywords: Automated construction technology, financial risk, generic appraisal model

Prediction of Highway Bridge Performance by Artificial Neural Networks and Genetic Algorithms

Onur B. Tokdemir, Cemal Ayvalik, Jamshid Mohammadi
Pages 1-8

Bridge management systems (BMS) comprise various techniques need to help make decisions on the type of works that need to be performed to maintain the serviceability of a bridge and to extend its useful life. These decisions rely on current and future bridge conditions therefore it is essential for a BMS to accurately predict the future bridge performance, or in ...

Keywords: Bridge Management System, Artificial Neural Networks, Genetic Algorithms

A Neural Networks Decision-Support System for Bidding in Construction

Mohammed Wanous, A. H. Boussabaine, J. Lewis
Pages 1-4

One of the various strategic decisions that have to made by construction contractors is whether or not to submit a bid for a new project when an invitation has been received. An innovative neural network model is proposed in this paper to help contractors in making their bid/ no bid decisions. This model is based on one hundred and sixty two real bidding situations. ...

Keywords: ANN, ANN Bidding Model, "Bid/ No bid" Criteria, Construction, Syria.

A Framework for Integration of Supply Chain Management Applications Based on the IAI/IFC Model

R. Jardim-Goncalves, R. Tavares, A. Grilo, A. Steiger-Garcao
Pages 1-7

At the present time, electronic data exchange in construction industry is mainly used for the exchange of information related to technical design, most of the time using proprietary data formats from the CAD systems in use. Planning, control and management activities are very often not supported automatically, and standard models to enable their automatic data exchange are just now coming from the research stage. ...

Keywords: Integration, Interoperability, Standards, IAI/IFC, Supply Chain Management

Automatic Controlled Vibratory Pile Driving with Shock-Stress Limitation

Dirk Reusch
Pages 1-6

For several decades vibratory pile driving has been extensively applied in civil engineering, e.g. in the construction of bulkheads. On urban construction sites shock waves occur which could damage nearby building structures and annoy humans. State-of-the-art machinery provides three control inputs (frequency, excitation force and surcharge force) to achieve two almost contradictory goals: fast pile penetration and shock stress below ...

Keywords: vibratory pile driving; shock-stress limitation; nonlinear oscillation; fuzzy control

Construction Industry Business Processes Modeled with Object-Oriented Approach

Chian-Hsueng Chao, Ahmad Hadavi, Wei Lo, Raymond J. Krizek,
Pages 1-6

For the construction industry, the demands for optimization and greater efficiency become particularly urgent when the flow of project information extends beyond the borders of organizations. Driven by the need to attain even greater corporate competitive advantages, many business philosophies advocate the use of ?the power of information technology to radically redesign business processes.? However, the adoption of IT in organizations and the configuration of ...

Keywords: IT (Information Technology), BPR (Business Process Reengineering), OMT (Object Modeling Technique), UML (Unified Modeling Language), CORBA (Common Object Request Broker Architecture)

An Internet-Based Communication Model for A/E/C Industry

Manar Shami, Hazem Elzarka
Pages 1-6

Among the most significant factors contributing to projects? success in the A/E/C industry is effective communication. One shortcoming of current project websites is that the published information may be static and does not enable professionals to take advantage of the wide range of functionality available through the Internet. This has generally led to an overflow of information that may not be useful to all ...

Keywords: Smart Document, Communication Channel, Project Website, Collaboration

Web-Based Virtual Reality Facility Representation and Simulation in Construction Pre-Planning

Shih-Ping Ho, Liang Y. Liu
Pages 1-5

This paper presents a prototype VR (virtual reality) system that allows participants of a construction project to immerse in a vivid 3-D environment via the Internet and effectively review alternative building models. Using the system, engineers, architects and other participants of a construction project can exchange project information. Construction sequences and schedules can be integrated into the 3-D model, and the model can visually simulate ...

Keywords: Pre-planning, facility representation, facility simulation, information technology, virtual reality, VRML, web-based virtual reality, World Wide Web.

The Development of an Automated Cost Estimating System Using 3D CAD and Relational Database

Young-Suk Kim, Se-Wook Oh, Jung-Ryul Kim, Beak-Joon Sung
Pages 1-9

The successful construction of a facility highly depends on adequate planning, design, and control of the construction process. In an effort to better monitor and control the construction project, the construction industry has been engaged extensively in the development of a new computerized design and management system applying the concept of Computer Integrated Construction (CIC). The CIC is a new trend to improve the ...

Keywords: CIC, Information Technology, Cost estimating, 3D CAD, Relational database

Construction of Three-Dimensional Models for Structural Objects from Tomographic Images

Kevin Kuang-Hui Tseng, Ping Lu
Pages 1-7

In this paper, a new surface-based modeling algorithm is presented to construct 3D models of structural objects from 2D slices, which contain contours obtained from tomographic images. The main objective of this method is to produce the most precise possible model for branching bodies taking into consideration that the slices might be far apart in reality. Boolean operations will be used as the technique ...

Keywords: Solid Modeling, Geometric Modeling, B-rep, Boolean Operations, CAD, CAE

Using Genetic Algorithms to Optimize the Dispatching Schedule of RMC Cars

Chung-Wei Feng, Hsien-Tang Wu
Pages 1-6

Effective and efficient dispatch of Ready Mixed Concrete (RMC) cars to construction sites is an important issue for both RMC plant and construction site managers because of the timeliness requirement of RMC. To develop an efficient utilization plan for dispatching RMC cars, RMC plant manager must consider both timeliness and flexibility while meeting the schedule at the job site. However, a system approach to ...

Keywords: Optimization, Genetic Algorithms, RMC Cars Dispatching

Augmented Integrated Fuzzy Neural Network Learning Model in Structural Engineering

Shih-Lin Hung, C. C. Jan
Pages 1-6

Solving engineering problems is a creative, experiential process. An experienced engineer generally solves a new problem by recalling some similar instances examined before and applying what he learned from the present problem, through adaptation or synthesis. According to such a method, the IFN learning model was developed and implemented as a computational model for problem solving. This model has been applied to design problems involving ...

Keywords: Neural Networks, Supervised Learning Models, Unsupervised Fuzzy Learning Model, Structural Design

Optimum Construction Resource in Space, Time and Cost

Chin-Chih Kuo, Ren-Jye Dzeng
Pages 1-6

The article summarizes the overall idea of the study and presented the results of the first stage -- "simulation visualized of construction schedule". At present, we have corresponded and combined the CPM network diagram and the 3D object model for dynamic presentation. This kind of 4D dynamic diagram always simulates the 3D outlook at any point of time in the process of simulating project ...

Keywords: spatial resource, time-cost trade off, geographic information system (GIS), genetic algorithms (GA), 4D dynamic diagram, 3D object model

A Study of GIS Based Decision Support System on Prioritizing Yearly Planning of Drainage Engineering in Taichung County

Nai-Hsin Pan, Wen-Zon Chang
Pages 1-6

Due to financial constraints of local governments, budgeting public work projects can be highly politicized affairs. But as the economy grows, people are demanding higher standards of government service and want public works projects performed using only objective and scientific methods. This study uses overall evaluation and Delphi methods as well as non-probability questionnaires completed by county and city governments and village and neighborhood chiefs ...

Keywords: Multicriteria evaluation, management information system, geographic information system

Study on Urban Rail Rapid Transit Accidents Prevention and Hazards Identification

Lung-Chuang Wang
Pages 1-10

In comparison with the other transportation modes, rail rapid transit already enjoys a higher degree of safety as it is designed with the exclusive right of way and the automatic train control and monitoring systems. Nevertheless, rail rapid transit systems are not free from serious accidents, which often led to human injuries and facility damages. The planning of accident prevention and emergency measures, therefore, ...

Keywords: Rail Rapid transit, Accidents analysis, Hazard identification, Accident causation, Case study

A Study of 3D Spatial Model of Urban Mixed-Use Visual Simulation in Taipei City

Kuo-Chung Wen, Tsung-Hsing Huang
Pages 1-5

In the past years, computer visual simulation is more important in many research domains. Architect and developer can easy estimate architectural design in specialized field with tools of computer-aided design (CAD). But it is not enough for urban planning and design. Because a real urban environment must links to other spatial information. Besides, the urbanization is very fast in Taiwan, mixed-uses is common situation ...

Keywords: Spatial Data Model?Computer Visual Simulation?Urban Simulation

A Study of Computer Aided Layout Design in Taipei Primary School by Hierarchical Artificial Neural Network Approach

Kuo-Chung Wen, Hsiung-Leng Chen
Pages 1-6

Architecture layout design is diversified and complex problem. But designers usually can find out the answer with hierarchical and sequence schema effectively. However, earlier computer-aided architecture design, which problem solving only by binary-logic thinking is very different from human being. The pass decade Artificial Neural Network (ANN) is one of methods that process data like human being. This study is trying to propose a ...

Keywords: Layout Design, ANN, CAAD, Hierarchy

The Study of Using Self-Learning Neural Network in Automatic Construction-Site layout

Ping-Tsang Yang, Shu-Ling Lu
Pages 1-7

A good construction-site layout plan could directly or indirectly save construction cost and improve on construction efficiency; the larger of construction project or higher of construction overlapping is, the more important of construction-site layout is plan. Moreover, today?s constructive automatic technique reaches a specific degree; the application of automatic technique in construction-site layout plan has been accentuated. In general, the requirements of construction-site facilities depend ...

Keywords: Construction-Site Layout Plan, Scientific Management, Artificial Neural Network, Self-Learning Neural Network

The Automatic Layout Model in the Sequencing of Construction Activities of Multi-Objective Diaphragm Wall Unit by Using Self-Learning Neural Network

Ping-Tsang Yang, Shu-Ling Lu
Pages 1-8

Foundation construction process has been an important key point in a successful construction engineering. The frequency of using diaphragm wall construction method among many deep excavation construction methods in Taiwan is the highest in the world. The traditional view of managing diaphragm wall unit in the sequencing of construction activities is to establish each phase of the sequencing of construction activities by heuristics. However, it ...

Keywords: Diaphragm wall, Layout problem, Optimal combination, Artificial Neural Network, Self-Learning Neural Network

Logic-Based Approach for Evaluating Change Impacts

Wei-Chih Wang, Ya-Ling Chiu
Pages 1-6

As the complexity of a construction project increases, the occurrence of changes becomes unavoidable. In addition to the direct impact, a change may also have consequential impact (ripple effect) on the performance of project duration and cost. Built on a schedule network, this paper proposes a model, called LOGIC that uses a logic-based (including hard logic, soft logic, and causal logic) approach to quantitatively ...

Keywords: changes, hard logic, soft logic, causal logic, consequential impact

An Accelerated Subcontracting and Purchasing (ASAP) Model for Construction Projects Unsing XML/XSL Standards

Pao H. Lin, H. Ping Tserng
Pages 1-8

Based on the characteristics of highly specialized corporation in construction industry, it's a very crucial and important practice to select appropriate subcontractors to implement specific subprojects. In this research, the overall subcontracting supply chain of a construction project is considered as a global procurement system and an optimal combination of subcontractors can be obtained within this system. Combined the quick response mechanism of information ...

Keywords: E-Commerce (EC), Subcontracting, XML, XSL, Quick Response, Supply Chain Management (SCM)

A Bidding Model Combined Game Theory and AI Paradigms

Tao-Sheng Wu, Ming-Teh Wang
Pages 1-5

There are many similar attributes in the behaviors of auction and construction bidding. As studied in economics, it has been widely discussed in game theory. However, game theorists may not be familiar with the subtle differences between auction and construction bidding. As an analytical framework, game theory has the merits of reducing the complication of competitive bidding, but it is still difficult to pursue ...

Keywords: completive bidding model, neural network, fuzzy sets, game theory

1999 Proceedings of the 16th ISARC, Madrid, Spain 1999

Knowledge Learning System for Slurry Wall Construction

Ren-Jye Dzeng; Yi-Shan Ho
Pages 47-52

This research proposes an inductive learning model for acquiring the knowledge about the pre-construction planning of a slurry wall system. The model is suitable for the engineering problems where human experts rely on past experience, rule-of-thumbs, or subjective judgement. The system can be used to facilitate human experts to solve a new problem at hand. It can also be used ...

Keywords: slurry wall construction; planning; induction; artificial intelligence; generalisation

Dynamic Modelling and Identification of a Compactor

E. Guillo, M. Gautier
Pages 61-66

This paper deals with the design and identification of the dynamic model of a compactor,an articulated frame steering mobile engine for use in road construction.A classical approach based on an ordinary Least Squares identification method is used.A survey of these techniques is given and applied to estimate dynamic parameters of the compactor and especially the contribution of the contact strengths ...

Keywords: Dynamic modelling; identification; Multisensory data fusion; mobile robots

BCOF: An Integrated Object Framework for Realization of ISO Building Construction Core Model

Chien-Cheng Chou, Shang-Hsien Hsieh; Ming-Teh Wang
Pages 97-102

An integrated object framework, called BCOF (Building Construction ObjectFramework), for realization of ISO Building Construction Core Model (ISO BCCM or ISO PartJ06) is proposed in this paper to address the multidisciplinary problems of information integration in the AEC (Architecture, Engineering, and Construction) industry. Discussions are given first on both the issues related to information integration in the AEC industry and ...

Keywords: AEC Industry; Building Constitution; STEP; SDAI; Object framework

Simulation Model Probability Distribution Functions - Relationships between Input Data and Goodness-of-Fit Tests

Cristiano Maio; Cliff Schexnayder
Pages 103-108

Advances in computer technologies now allow for the accumulation of construction processdata in large quantities. The disadvantage of having a large number of observations is that there are problems with goodness-of-fit tests. This paper addresses the issue of the effect goodness-of-fit tests have on selecting a probability distribution function for use in construction process control, automation or in the development ...

Keywords: Probability; Distributions; Functions; Construction; Simulation; Chi-square; Kolmogorov-smirnov;Anderson-Darling

A Construction Schedule Controlling System Using Web-Based Knowledge Technology

Will Y. Lin; H. Ping Tserng
Pages 111-116

Schedule controlling is a critical task in managing construction projects.However, in practice most contractors do not control and update schedule frequently due to the lack of proper controlling method. In the real construction world. most decision-making rules are not based on the mathematical method, but on the contractor's assumptions, limitations and management style. Thus, expert's experience somehow is a significant ...

Keywords: Scheduling; Expert System; Web-based; Internet; Object-oriented

Simulation in Large-Scale Precast Operations

Edmundo Balbontin-Bravo
Pages 131-136

This document details a rationalisation study on the production of shop-prefabricated parts supported by simulation to analyse potential operating alternatives, The goal was quite specific: to improve productivity and so reduce production costs. Since the study was carried out while the workshop was fully operational, no changes that would have involved stoppages in workshop production could be considered. An initial ...

Keywords: No keywords

Design of an Object Oriented Environment for Planning Mobile Crane Lifts

K. Govinda Roa, Koshy Varghese, N. Ramesh Babu, K. N. Satyanarayana
Pages 145-150

This paper describes the work done towards designing a c;omputer aided system for planning crane operations on a construction site using object-oriented programming concepts. The use ofobject-oriented programming concepts [or design is important as it faciiities robust design, distributed development, modularity. reusabilitv and easy extension of features. Based on the planning and representation requirements,an object-oriented analysis and design was done ...

Keywords: No keywords

Primates - An Expert System for Selecting the Optimal Hall Assembly Method

Milan Trivunic
Pages 173-179

The production of prefabricated structures implies following certain regulations and applying certain work management in order for the process to proceed within the framework of the set requirements (deadline, costs, building and process quality). The application of inappropriate technology and management eliminates the advantages offered by prefabricated construction. Since the process is a complex one and is, from the mathematical ...

Keywords: modeling; expert system; assembly management; concrete assembly halls

Implementation of an Integrated 3-D Information System for EPC Projects

Shannon Holy, Ben Song, Rob Wubbenhorst
Pages 205-210

The process of engineering, procurement, and construction (EPC) project execution uses a great amount of diversified information. A means to integrate the various sources of data and concisely display this information is needed. An advanced object-oriented system developed by Jacobus Technology, Inc. and customized by Fluor Daniel, Inc., allows data integration between 3D-design model information and engineering, material management and ...

Keywords: Construction Visualization; Integrated Project Information; InVision

A Study on Contractual Information Sharing System

Yie-ting Chen, Ming-Teh Wang, Shang-Hsien Hsieh
Pages 217-222

Traditionally the contractually required data are delivered with paper format,which could cause many problems such as waste of papers,difficulties in managing documents,error-prone in data processing etc.If the owner and contractors in a construction project do not share the information specified in their contract efficiently and consistently,their communication cannot be effective and correct.Such problems can be improved by using advanced information ...

Keywords: Document management, contractual information system; CITIS; Information Model; construction CALS

A Humanoid-Robotics Method for Predicting Construction Work Performance

Jonathan O'Brien
Pages 237-242

A major obstacle to the refinement of modem construction engineering practice is the inability of the industry to exactly predict (in some theoretical rigorous manner) the before- the-event performance of construction workers in the execution of particular tasks or to account for the actual method or systems of work employed or to allow for small changes in the task or ...

Keywords: Robotics; construction; simulation; virtual reality; digital people; ergonomics

Initial Steps to Vibration Control of a Concrete Pump

Dirk Nissing, Werner Bernzen, Torsten Wey
Pages 315-320

Concrete pump robots are used for very wide operating ranges, so elastic deformations of the links must be taken into account. Concrete pumps demand actuators with a high power density, able to produce large forces which can be achieved by the use of hydraulically driven actuators. Hydrostatic differential cylinders are widely used because of their simple construction. For ...

Keywords: concrete pump; flexible links; vibration damping; hydraulic actuators; nonlinear control

Computer-Aided Design and Construction of Glued Laminated Timber Structure

Luca Caneparo
Pages 327-332

The paper presents the computer-aided design and construction of a large glued laminated timber structure in Aosta, Italy. The structure was completely computer modeled with in-house developed software, which considers both torsion and curvature constraints of timber. Further proprietary software was used to develop, on a plane, the shape of each timber layer without torsion and curvature. The profiles were ...

Keywords: computer-aided construction; glued laminated timber structure; computer numeric control cut

Electromagnetic Measurement System for Underground Tunneling Robot Identification

Takeshi Tsujimura, Seiji Shirogane, Michito Matsumoto, Tetsuya Manabe
Pages 373-378

This paper proposes a newly developed thin arrayed magnetic receiver system and describes an especially designed 1.3mm thick high sensitive magnetometer. The former enables remote position sensing of underground mobile robots using electromagnetism. It features a sensor sheet spread over the ground above the construction site. The robot position is estimated in high accuracy with its multiple measurement data. The ...

Keywords: Tunneling robot; Magnetometer; Electromagnetics; underground; remote sensing print circuit; estimation; ferromagnetic; magnetic flux density; band path filter

The Identification of the Dynamic Model in the Mining Pressure Regime in Order to Assure the Stability of the Underground Mining Constructions

Victor Arad, Susana Arad, Monica Radulescu, Dana Cosma
Pages 409-413

The paper presents some theoretical considerations regarding the evaluation of the underground mining constructions' stability and practical aspects about identifying experimentally the dynamic regime of the pressure. The identification represents an experimental technique to determinate the dynamic models of the process, an important stage in designing and implementing an elastic performing supporting.

Keywords: identifying; Dynamic; mining pressure; stability; underground construction

Swing-Free Cranes via Input Shaping of Operator Commands

Kenneth N. Groom, Gordon G. Parker, Rush D. Robinett, Frank Leban
Pages 417-421

This paper presents an open-loop control method for suppressing payload oscillation or swing caused by operator commanded maneuvers in rotary boom cranes and the method is experimentally verified on a one-sixteenth scale model of a Hagglunds shipboard crane. The crane configuration consists of a payload mass that swings like a spherical pendulum on the end of a lift-line which is ...

Keywords: No keywords

Stability Domains in the Feedback Gains Space for an Overhead Crane with Flexible Cable

A. M. Formalsky
Pages 423-428

The problem of stabilization of desired crane position and load at the flexible cable tip is considered. The stabilizing control is linear feedback. This control law depends on the platform position, velocity and integral of this position. It contains also the information about the angle between the vertical and the cable at the point of its connection to the platform ...

Keywords: overhead crane: flexible cable: desired equilibrium: linear feedback control: boundary value problem: asymptotic stability: eigenvalues

Dynamic Modelling and Stimulation of a Hydraulic Stepper Cylinder Used in Manipulators and Robots

Ryszard Dindorf
Pages 445-450

The present paper describes dynamic modelling, results of simulation and experimental investigation of a hydraulic stepper cylinder, which find application in manipulators and robots. The method of bond graph is used for modelling of the dynamics of the considered cylinder design. First, an initial digital simulation is performed in order to calculate basic dynamic characteristics of the cylinder design. Next, ...

Keywords: Hydraulic stepper cylinder: dynamic modelling: digital simulation: bond graph method.

Force and Position Control for Electrohydraulic Systems of a Robotic Excavator

Q. P. Ha, Q. H. Nguyen, D. C. Rye, H. F. Durrant-Whyte
Pages 483-490

In impedance control of hydraulic excavators the piston position and ram force of each hydraulic cylinder for the axis control of the boom, arm, and bucket can be determined. The problem 'is thus how to find the control voltage applied to the servovalves to track these commands to the hydraulic systems. This paper presents analytic, simulation and experimental results for ...

Keywords: force and position control: electrohydraulic systems: discontinuous observer: robust sliding mode control: robotic excavator

Scaling Teleoperation Robust to Valuable Time-Delays

Platon A. Prokopiou; Spyros G. Tzafestas
Pages 497-502

This paper presents a general technique for variable time delay compensation in teleoperation, which is based on the prediction of the human arm position and force, i.e. effectively the master state. The method is illustrated within an architecture previously proposed by Yokokohji and Yoshikawa. Scaling of master variables is also incorporated, so that a complete system suitable for most teleoperator ...

Keywords: teleoperation: rime-delays: scaling: human arm: master state prediction: passivity

Analysis of Resistive Forces Acting on the Bucket of LHD in the Scooping Task

Hiroshi Takahashi, Yoshiaki Tsukamoto, Eiji Nakano
Pages 517-522

In order to automate the scooping task, it is desirable that the resistive force acting on the bucket be obtained before the scooping is performed. The objective of this study is to derive theoretically the resistive forces acting on the bucket during scooping of piled rock fragments. First, the changes in the shape of the rock pile due to the ...

Keywords: No keywords

Improved Model of Soil for Environment-Robot Excavator Interaction

Fiorenzo Malaguti
Pages 523-527

Planning of automated digging processes meets difficulties, because is difficult to describe operating environment (soil) - digging robot interaction, here a double-wedge model is proposed as improvement of traditional wedge model generally used. The double-wedge model doesn't introduce sham variables, preserves real geometric dimensions, puts in evidence the inf1uence of control parameters, allows to show the possibility to predict soil ...

Keywords: environment-robot interaction: soil model: trajectory planning

Trajectory Control Performance Analysis of Excavator-Based Sheet-Piler-System

Erno Keskinen and Sirpa Launis, Michel Cotsaftis, Yrjo Raunisto
Pages 535-540

Sheet-piling process poses the problem of prescribing the pile a fixed trajectory in order to drive it correctly into the ground. When representing the complete system of the supporting boom with hydraulic actuators, the gripper and the vibratory unit, the large number of system variables implies the use of assisted control to allow a human operator to handle the operation. ...

Keywords: sheet piling: trajectory performance control: electro-hydraulic servo control

Path Planning of Construction Manipulators Using Genetic Algorithms

PL. Sivakumar, Koshy Varghese, N. Ramesh Babu
Pages 555-560

This paper presents the work done to investigate the potential of applying Generic Algorithms for path planning of construction manipulators. Construction manipulators can rake the shape of specialized equipment such as the pipe manipulator or common equipment such as cranes. The need for automating the path of construction has been identified in number of past studies. Path planning is a ...

Keywords: No keywords

Fuzzy Control Based on a Reflex Avoidance for a Mobile Robot

K. Belmekki
Pages 561-564

In this work, a robot A is moving in a dynamically changing space W, with imprevisible static obstacles and moving objects. We propose for that and in order to control the robot's movement, a reflecting loop based on an analysis of the robot's space. This technique leads to a better estimation of the collision risk and offers a way to ...

Keywords: No keywords

Design for Reliability of the Construction Robot Using Genetic Algorithm

A. M. McCrea, G. J. Bleakley
Pages 611-616

Construction robot design for reliability is of particular importance due to the robots interaction with the environment and high level of human involvement, which impose additional safety hazards. Many methods tools and approaches exist, however none offers full and exhaustive reliability analysis or the given system. Research presented in this paper links the dynamic modelling of a system (using VisSim ...

Keywords: Design for Reliability:Dynamic Modelling:Genetic Algorithms. Construction Robot

Two-Arm Coordination Control by Learning on a B-Spline Model

Jianwei Zhang, Markus Ferch, Alois Knoll
Pages 637-642

To enable a two-arm manipulator system to perform complex cooperating tasks such as carrying a rigid object, establishing a contact to a surface, grinding, etc.. a non- linear multiple input system should be solved. We apply an approach to on-line automatic learning of a B-spline fuzzy controller: This controller model directly connects the sensor inputs to the compensation motion. By ...

Keywords: No keywords

Automated Data Acquisition for On-Site Control

Ronie Navon, Eitan Goldschmidt
Pages 681-686

The purpose of this paper is to highlight the need for automated real-time project control, as well as to present a model for such control, based on Automated Data Acquisition (ADA). The idea behind the present development is to determine if measuring the location of workers, or other mobile agents on-site, at constant time intervals, using remote sensing, provides the ...

Keywords: No keywords

Automated Quality Assessment of Constructed Surfaces through Intelligent Image Processing

Yassir AbdelRazig, Luh-Maan Chang, Miroslaw Skibniewski
Pages 693-699

Computerized intelligent systems can simulate human expertise, as well as analyze and process vast amounts of data instantly. This paper presents a hybrid intelligent computerized model for constructed surfaces quality assessment. The assessment of steel bridge coating is used to exemplify the model. The model will automate the assessment process by using computers to analyze digital images of the areas ...

Keywords: Quality assessment:image processing:pattern recognition:neural networks

Position Estimation of a Car-Like Mobile Robot Using a Gyroscope and Disturbance Conditions

Min Chul Kim, Wan Kyum Chung, Youngil Youm, SangRok Oh
Pages 709-714

In this paper, we propose an improved dead-reckoning method for estimating current position and orientation of the mobile robot using wheel-rotation sensors and a gyroscope. Up to now, pre-identified model is usually used to get more accurate posture from the gyroscope. However, this model can lose its accuracy during the operation including temperature change. To overcome this limitation, a real-time ...

Keywords: Posture estimation: Odornetry:Uncertain parameters of a gyroscope:Disturbance Condition:Real-time identification

1998 Proceedings of the 15th ISARC, Munchen, Germany 1998

Electronic Planning Tools for Tower Cranes

F. van Gassel
Pages 145-151

The right tower crane operated correctly allows the contractor to build quickly and cheaply. The choice or a tower crane is a complex matter. Many variables have to be discussed at an early stage. The Eindhoven University of Technology is conducting three research progects to develop a set of tools to help the contractor choose and use tower CraneS. In ...

Keywords: No keywords

A Benefit-Cost Analysis Model for Implementing Construction CALS

M. Wang, H.-P. Tserng, S.-H. Hsieh
Pages 173-182

The objective of this paper is to discuss why Construction CALS (C-CALS, in short) is needed for complex construction projects and to propose a benefit-cost analysis model for justifying the implementation of C-CALS from the viewpoint of economy. This paper identifies six different Cases of data standardization for the delivery process of construction projects. Furthermore, a detailed cost estimating of ...

Keywords: Construction Automation; CALS; Cost-Benefit Analysis; Information Technology

A Unified Theory of Construction Robotics

J. O'Brien
Pages 191-200

Presented is a unified theory df construction robotics based upon the idea of behaviour programmable physical action units and modules. The theory covers both animate and inanimate construction machines and the paper gives examples of the theory's use to model dynamic systems composed of. disparate-form, active agents. Some new ideas for intelligent controller systems for smart machinery systems are presented. ...

Keywords: No keywords

Research on the Intelligent Construction System - Distributed Automatic Construction Planning System with JAVA

Masahiro Morita
Pages 415-421

As a result of automated construction methods, which many construction companies have worked on these days. Consequently, the following construction planning systems are needed: I) the best framework partition plan, 2) the best layout plan of the hardware and the best usage plan of workers at the construction site, 3) the output of the stage of execution works, in ...

Keywords: No keywords

A Productivity Model for Performance Evaluation of the UT Automated Road Maintenance Machine

Young-Suk Kim, Jason K. Husbands, C.T. Haas, Richard Greer, Angela Reagan
Pages 443-450

An Automated Road Maintenance Machine (ARAMM) for automatically sealing pavement cracks has been developed by the University of Texas at Austin. Automating pavement crack sealing can improve safety, productivity and quality and reduce road user costs as well. Recent initial field trials of the full scale crack sealer have indicated that automated pavement crack sealing is now technically, economically, and ...

Keywords: No keywords

1997 Proceedings of the 14th ISARC, Pittsburgh, USA 1997

Wireless Networking for Integration of Real-Time Construction Metrology Systems

Lawrence E. Pfeffer
Pages 41-50

The evolution toward sensors/metrology systems with embedded processing holds great potential for construction automation, provided that effective, standard communications and data-exchange techniques can be developed. Unfortunately, most metrology systems have limited interfaces that slight the communications/data- exchange issues. Serial, hardwired links (e.g., RS-232,422) are a common, low denominator.The NIST virtual site simulator (VSS) is a test-bed system for ...

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Incorporating a 3D Urban Environment Model between Government and Local Architectural Firms

Naai-Jung Shih, Wei-Jeh Lan
Pages 160-165

The purpose of this paper is to study how to incorporate current modeling data with design under constraints of current computational capability and applied software and hardware of local architecture firms. The study is made to facilitate the review of newly designed buildings and evaluating their possible impact on the surrounding environment. Concerns regarding the operations of government’s departments and ...

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Designing for Automated Construction

A. Scott Howe
Pages 167-176

The majority of automated construction research and development has been bottom-up, from the construction / engineering side rather than top-down from the design end. The first part of this paper is devoted (0 the design of a research programme which seeks to address topics related to the conceptual design of robotic systems for construction, and developing overall design principles for ...

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Economic Analysis of Robots Employment in Building

Abraham Warszawski, Yehiel Rosenfeld
Pages 177-184

The paper presents a complete and a simplified model for the economic analysis of robots employment on building sites. Four generic types of building robots are analyzed with the aid of the model and of the available productivity data, which have been published to-date by developers and users of building robots. General conclusions are presented with respect to 'the feasibility ...

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Evaluation of an Alarm System to Prevent the Overturning of Truck Cranes

Ryoichi Fukagava, Tatsuro Muro, Koichi Tanigami
Pages 206-213

The authors have previously proposed a new method to prevent the overturning of truck cranes considering possible ground failures in the 11th ISARC at Brighton. The first aim of this study was to create an alarm system which can predict and judge the degree of danger from the data between the load and the settlement at outrigger pontoons, especially when ...

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Development and Trial of a Teleconstruction System

Thomas Bock, Mamoru Mitsuishi
Pages 337-339

This paper will introduce a multi-designer and multi-construction machine system which has a realizeability capacity. It also provides a cooperative creation environment from design activity to prototype construction, which is indispensable for product development and the predictive simulation of complex construction projects.The requirements, the necessary functions and the implementation of a "cooperative tele-designing and tele-construction system" which is distributed on ...

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Automated, Real-Time Estimation of Pile Bearing Capacity via Seismic Measurements

Chung-Ham Yang, H. Randolph Thomas
Pages 351-358

This research is aimed at developing a seismic measurement based method for estimating pile bearing capacity. By modeling the rigid body motion of the pile-soil system. the pile bearing capacity is analytically derived as a function of mass. natural frequency. damping ratio. and soil quake. Tltis paper presents the procedure of extracting the natural frequency and the damping ratio from ...

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Estimation of Internal Condition in Piled Fragment Rocks by Use of Resistive Forces Acting on the Bucket of Wheel Loaders

Hiroshi Takahashi
Pages 359-366

In order to automate the scooping task, it is necessary to obtain the resistive forces acting on the bucket before the scooping is performed. In this study, empirical equations to predict the friction coefficient between the bucket and rocks, the friction coefficient among rocks and particle diameters were obtained by using the resistive forces which are measured at the beginning ...

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Interactive Path Planning for Multi-Equipment Landfill Operations

Hui-Ping Tserng, Bin Ran, Jeffrey S. Russell, John J. Uicker
Pages 388-397

A methodoöogy and several algorithms for interactive motion planning are deveLoped for multiequipment Landfill operations in an automated Landfill system (ALS). A system for establishing ALS is aLso proposed in the paper. To deveLop a multi-truck/multicompactor automated Landfill system, the major probLems can be classified into three principal categories: (1) navigation system of multi-equipment, (2) job-site geometric modeL, and (3) ...

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A New Approach to Simulation of Heavy Construction Operations

Kyong J. Kim, G. Edward Gibson,
Pages 398-405

To support the utilization of discrete-event simulation in the analysis and planning of heavy construction operations, this research investigation has established a framework for a more simplified simulation environment. This framework is a resource operation cycle-based simulation modeling approach using an object-oriented information system to support project managers. This approach allows for reusable simulation modeling elements that build various resource ...

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1996 Proceedings of the 13th ISARC, Tokyo, Japan 1996

Study on Super Long Distance Space Telerobotics

Hiroaki Ujiie, Fumio Yasumoto, Kenji Ogimoto, Shigeoki Hirai, Kazuo Machida, Yujin Wakita, S. Peters, P. Backes
Pages 59-64

Telerobotics research for Super Long Distance has been underway between MITI of Japan and NASA JPL of United States. Foe this telerobotics, the limited amount of data transfer,communication delay and the uncertainty of robot environment will be the major issues. To overcome these problems, a telerobotic system, with a knowledge base for object handling, an environment model and a hybrid ...

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A New Approach to Construction Robot Programming

R. Navon, A Retik
Pages 87-94

The paper describes a virtual-reality-based approach to programming construction robots. This approach is needed because of the ever changing conditions and the nature of the construction work. As a result, construction robots need much more programming relative to their industrial counterparts, this being a labor intensive task using known methods. Unfortunately the massive programming investment is not compensated by mass ...

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Heavy Object Handling System by Cooperation of a Robot and a Crane with Multiple Wires

Hisashi Osumi, Tamio Arai
Pages 113-120

This paper proposes a strategy for handling a heavy object by cooperation of a position-controlled robot and a crane with multiple wires. Installation of compliant mechanism is essential to avoid excessive inner forces caused by positioning errors of the robot and the crane. First, the necessary mechanical conditions to achieve the cooperation between position-controlled robots are reviewed. Second, compliance model ...

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Construction Robot Development Using Genetic Algorithm Technique

Anna M. McCrea, Ronie Navon
Pages 151-160

In this paper, it has been shown how to utilize the genetic algoritlun (GA) technique in construction robot development. The investigation of the problem is carried out on the example of an automated device for the restoration of steel bridges, as the technology of the process poses a high level of health hazard and causes environmental pollution. Using GA as ...

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Posture Control of Six-Legged Integrated Locomotion and Manipulation Robot

Haruo Hoshino, Toshio Fukuda, Yuji Adachi, Eiji Muro
Pages 261-270

This paper describes the Six-legged Integrated Locomotion and Manipulation Robot with an omni-directional walking mechanism and 4 d.o.f. manipulator. The walking mechanism consists of a parallel link mechanism connecting the two frames with three linear actuators, and this robot has six extendable legs and can move in any direction. The relative position and angle of the two frames are selected ...

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Simulating Construction Process with an Animation

Naai-Jung Shih
Pages 405-410

This paper presents an animation which simulates construction process by applying tower cranes to assemble shared steel forms in a site of six buildings. Only two sets of steel forms are provided. The animation is simulated based on the length of a cycle.and the number of cycles (a unit period of time) spent for sliding slabs down and moving ...

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An Object-Oriented Environment for the Construction Planning of High-Rise Buildings

Masaaki Ikeda, Amr A. Oloufa, Yasunari Sekihara
Pages 411-420

New buildings are experiencing a continuous increase in the sophistication of their building systems and methods of construction. This situation creates a need for a planning tool that is capable of serving one or more of the complex set of activities during the project life phases. Several researchers have devised methods for the modeling of buildings in an attempt to develop ...

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An Integrated Intelligent Planning Approach for Standardised Prefabricated Components

Nashwan Dawood
Pages 457-465

Design, manufacturing and erection activities of prefabricated units are highly complex, fragmented, time consuming and demand expert personnel. A recent study by the author revealed that the prefabrication industry is highly fragmented, manual intensive and behind other manufacturing based products in terms of information technology and automation. This is causing an extra financial burden on the industry and deprives the ...

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Constraint-Directed Scheduling for Multi-Storey Building Projects

Pasit Lorterapong, Osama Moselhi
Pages 483-492

This paper describes the development of a scheduling prototype system that assists schedulers in managing constraints that are normally encountered in the scheduling of multi-storey building projects. Constraints such as technological constraints, time constraints, resource limitations, space congestion, safety and managerial constraints are treated in this study. The system breaks down a building project into levels of abstraction based on ...

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An Intelligent Virtual Reality Model for Site Layout Planning

A. H. Boussabaine
Pages 493-500

This paper describes research which is underway in the School of Architecture and Building Engineering at the University of Liverpool. The main aim of the first stage of this research is to develop a theoretical model for site layout visualisation. Emphasis has been placed on investigating ways of integrating and representing the site layout information in an electronic model that ...

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Geometric and Topological Representation of Reinforcement Detail for Reinforced Concrete Frame Structures

R. Kunigahalli
Pages 521-530

This paper presents a topological model for reinforcing elements that can be employed to generate equipment-level instructions for automated rebar cage fabricating and placing machines. The model presented in this paper supports extraction of information pertaining to hooks and splices in logarithmic running time during the construction/manufacturing stage. In addition, this model allows constant order insertion and deletion operation during ...

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Automation - Equipped Working Place of a Construction Firm Management Engineer

T. Bobrova, V. Nikitin
Pages 541-546

The Siberian Automobile and Highway Institute presents the results of research on development of the AUTOMATION -EQUIPPED WORKING PLACE OF A CONSTRUCTION ENGINEER (AEWPCE) program package for a personal computer. The complex consists of three main blocks: BLOCK A is the scheduling on the imitation model basis; BLOCK B is the standard and resource provision; BLOCK C is the situation ...

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Development of a Bulldozer Operation Simulator

S. Mimura, Y. Ishimatsu, T. Yoshida
Pages 607-614

Bulldozers and similar general purpose earthmoving equipment frequently handle soil, work which must be done by operators with considerable experience. A study of an artificial intelligence technology based control system that can permit even inexperienced bulldozer operators to perform high quality earthwork has been carried out. This paper provides a summary of that study along with a report on a ...

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The Prediction of the Interaction between an Excavator for the Diaphragm Wall Method and the Surrounding Ground

R. Fukagawa, T. Muro, H. Yamamoto, T. Matsuike
Pages 625-634

The aim of this paper is to propose a reliable mechanical model which can explain the interaction between an excavator for the diaphragm wall method and the surrounding ground. The non-linear interaction between the control plate of the excavator and the ground was formulated by an exponential type function. The sub grade reaction corresponding to the action of the control ...

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Visualisation Technique for Robotic Component Connection Systems

B. L. Atkin, S. O. Popo-Ola, R. D. Wing
Pages 691-698

As the construction process moves towards an increasingly automated scenario, the design of fixing systems which can be easily handed by robotic devices becomes an essential factor in the eventual viability of the whole system. This project has studied many common and many uncommon fixing methods, in a survey covering all areas of engineering industry. Some of the methods are ...

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The Automation of Piling Rig Positioning Using Satellite GPS

D. W. Seward, J. R. Ward, J. D. Findlay, H. Kinniburgh
Pages 727-732

The paper is in two parts: Part one describes the Stent Automatic Pile Positioning and Recording system (SAPPAR) which was launched in November 1994. The system utilises a Trimble satellite global positioning system (GPS) to assist rig drivers to accurately position the rig over a pile position without the need for setting out. Advantages of the system include: Cost savings by ...

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Decision Process of a Control Limit for Micro-Tunnelling Robots

T. Takatsu
Pages 769-778

In this paper, we derive a procedure to design a control limit for Micro-tunnelling Robots. The main problem to design the control limit is that the relation between the trajectory of the Micro-tunnelling Robot and the work quality is unknown. We accordingly make a mathematical model for simulation experiment to know the relation. From the simulation experiment and real data, we ...

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Development of a New Dimension and Computer-Aided Construction System for Shotcreting Robot

M. Cheng, Y. Liang, C. Wey, J. Chou, J. Chen
Pages 867-876

This paper addresses the improvement of the semi-automated shotcreting robot. The arm of the robot has six degree of freedoms and is remotely controlled by the operator using a control box with six sticks and three buttons on the board. However, based on the results of utilization, the concurrent model has two major drawbacks for the job site practice: (1) ...

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Development of Wall Painting Robot

T. Gokyu, M. Takasu, S. Fukuda
Pages 949-956

Wall painting as well as inspection works for structures, so far, have been performed manually through use of scaffolds or gondolas provisionally built all around the subject wall, which, therefore, having raised many problems such as high personal risks, unclean work environments, etc.. The wall painting robot developed this time can perform, as moving attracted on a wall as being ...

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1995 Proceedings of the 12th ISARC, Warsaw, Poland 1995

OPSALC: An Operations Planning System for Autonomous Landfill Compaction

Hui-Ping Tserng, Raghavan Kuingahalli, Jeffrey S. Russell
Pages 63-69

The construction workers and operators associated with the sanitary waste landfilling operation are at high health risks because of constant expose to harmful solids and gases. Automation of spreading and compacting processes during landfilling operation can result in improved safety due to reduction in exposure of workers to harmful environment. This paper describes a software system developed to assist: (1) ...

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GIS Applications in Construction: Planning for Disaster Relief

Roozbeh Kangari, Asif Sani
Pages 77-84

Application of Geographic Information Systems (GIS) in construction disaster relief planning is presented. A case study of GIS developed for Fulton counted in the state of Georgia is presented. The project identifies potential resource allocations and accessible roads network using TranCAD GIS computer program. This model could be used for a disaster relief project to identify the available resources which ...

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An Intelligent Approach to Automate Production Budget Planning in the Building Products Industry

N.N. Dawood
Pages 93-101

Production budget planning in the building products industry is the process of committing and allocating resources to manufacture building products for 12 months ahead in order to satisfy certain criteria set by top management. It is a highly complicated and time consuming process and demands experienced production managers to handle it.This paper discusses the development of an intelligent budget planning ...

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Development of Wall Inspection Robots

A. Nishi, H. Miyagi, K. Ishihara
Pages 103-108

Use of wall-climbing robots for inspection or maintenance of wall surface has been anticipated for a long time. Four quite different models have been developed in our laboratory. The present model can move on a wall by using the thrust force of the propellers and can fly whenever it is required. Its mechanism and control system are discussed.

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Automatic Diagnosing of Fatigue Life of Machine Parts

K.M. Golos, S. Oziemski
Pages 117-121

In the paper one of crucial point in the condition assessment strategy-fatigue life diagnosis has been discussed. The non-linear cumulative fatigue model has been presented.

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Interaction between a Model Excavator and the Surrounding Ground during Positioning Control Tests

R. Fukagawa, T. Muro, K. Hozumi, T. Matsuike
Pages 123-130

A series of laboratory tests by using a model excavator for the diaphragm wall method were carried out in order to investigate the interaction between the model excavator and the surrounding ground. The behavior of excavator is theoretically formulated and the theoretical values were compared with the experimental data. As a result, the calculated displacement of the excavator showed good ...

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The Optimisation of Tool Shapes and Trajectories in Heavy Machines

A. Jarzebowski, J. Maciejewski, D. Szyba, W. Trampczynski
Pages 159-166

The aim of this paper is an experimental determination of the most efficient tool trajectories and tool shapes from energy consumption point of view, for heavy machines tools during the filling process. Laboratory tests were performed under plane strain conditions on a constant slope made of cohesive soil, using various model tools. The most efficient tool trajectories were searched, from ...

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Dynamic Stability of Machines with Articulated Frame Steering in Automatic Warning System Aspect

Piotr Dudzinski, Radoslaw Cieslak, Kazimierz Pieczonka
Pages 299-306

The stability of operation of heavy machines is one of the main factors determining their working ability and safety. This problem is of a major importance for articulated frame machines that have worse stability than machines with the conventional steering system. So far the problem has not been solved satisfactorily. In this paper, problems of the dynamics stability of the ...

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Dynamic Simulation, Nonlinear Control and Collision Avoidance of Hydraulically Driven Large Redundant Manipulators

Martin Schneider, Manfred Hiller, Stenfan Wagner
Pages 341-348

A detailed dynamic model of hydraulically driven mobile large-scale manipulators is presented. The model can be used as simulation model, for the calculation of the forces in the design process and for the development of the controllers, which are required for tracking given trajectories, but also to avoid vibrations. It takes into account all relevant coupling effects between hydraulic drives ...

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Can Construction from the Experience of Other Sectors in Achieving the Appropriate Balance between Organizational and Technological Innovation?

J M Jones, M Saad
Pages 349-356

Studies of the use of advanced technology in manufacturing have given clear indication of the need for simultaneous changes in organization and management practices if a successful and sustainable implementation of advanced technology is to be assured. It can also be shown that it is sometimes counterproductive to introduce new technology without adapting the other elements of the process involved. ...

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CAD Environment for Automated and Robotic Construction

R. J. Luke, M. M. Cusack, J. M. Jones
Pages 423-429

Successful robotic and automated systems require a well defined, structured and controlled work environment. It is therefore clear that before automation in the construction process can be effectively implemented, uniformity and clarity of the various tasks to be automated must be introduced. The structuring of the process must be addressed in the design phase and maintained through to completion.Preliminary work ...

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Building System Design for Development of Automated Interior Finishing System – WASCOR IV Research Project Report (Part II)

Naohisa Sunaga, Yukio Hasegawa, Kinya Tamaki, Hiroshi Kasai, Hiroshi Kurita, Tatsuo Murayama, Hitishi Sugiura, Teruo Yomo, Masashi Matsudo
Pages 457-464

For the development of automated building construction system with robots, the WASCOR (WASeda Construction robot) research project has been organized since 1982 by the system science institute, waseda university. The WASCOR IV project started in 1992. The research theme of the wascor IV project is to develop automated construction systems for interior finishing work. This research theme consists of three ...

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Robot Motion in Unstructured Environment

Manfred Bartha, Max Eibert, Christian H. Schaefer
Pages 499-507

To operate an autonomous vehicle in off-road terrain is one of the most difficult problems in robotic. Since it is not possible to build a high resolution model(3d map) of an unstructured terrain, in particular of an industrial area or a construction site, a robot, driving through this terrain, in particular of an industrial area or a construction site a ...

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A Model for Automatic Control of Vibratory Plate Compactor

Witold Gutkowski, Krzysztof Szelagowski
Pages 555-561

Application of automatic control into compaction equipment is one of the most complex problem compared with other machines used in civil engineering works. This is due to the difficulties in getting proper feedback, consisting of a transfer to the compactor and information on the state of soil being just under compaction. The paper presents an approach to this difficulty and ...

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1994 Proceedings of the 11th ISARC, Brighton, United Kingdom 1994

Hazard Analysis Techniques for Mobile Construction Robots

D W Seward, D A Bradley, F W Margrave
Pages 35-42

This paper introduces the problem of safety for mobile construction robots and explains the concept of a “hazard” in safety analysis. The well known Safety Lifecycle Model is described. This model is then expanded to illustrate the hazard analysis are detailed, and three well known hazard analysis techniques reviewed- HAZOP, FMECA and Fault Tree Analysis. The shortfalls of these techniques ...

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Computer Simulation of Concrete Slab-on-Grade Construction

Osama Moselhi, Stanley Hanson
Pages 125-132

This paper presents a decision support system for contractors specialized in concrete floor finishing, making optimal use of available technology in automation. The paper presents a computer simulation model for concrete slab-on-grade construction considering different levels of automation that integrate conventional manual, semi- automated, and robotic work processes. The data used in the simulation was obtained through a survey of ...

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Development of an Automated Design Aid (ADA) for Improved Buildability and Accelerated Learning

D.R Moore, A. Tunnicliffe
Pages 163-170

This research is targeted towards the provision of support for designers in achieving, and measuring, Buildability whilst allowing for design Creativity and learning. This paper deals with development of Skill Models as an approach to measuring Buildability in a CAD produced design. A Skill Model is specific to one construction task. A library of Skill Models is required for full ...

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Automated Case-Based Scheduling for Power Plant Boiler Erection: Use of Annotated Schedules

I.D. Tommelein, R. J. Dzeng
Pages 179-186

Contractors who repeatedly build the same kind of facilities accumulate experience in scheduling the needed construction work. When parts of a facility’s design are copied from one project to the next, the previously developed schedules could be refused to schedule future work. The aim of the presented research is to articulate project characteristics and describe associated schedules, to accomplish such ...

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Prior-Use Evaluation of the Impact on Company Work Procedures of Using Robots on Construction Sites

C. C. Neil, G. D. Salomonsson
Pages 231-238

This paper demonstrates the application of a prior-use evaluation model developed to assist management to evaluate the probable impact of introducing automated equipment on construction sites. Two case studies have been used to illustrate the importance of not only considering the particular project characteristics, when assessing the potential benefits associated with automated equipment, but to include the whole range of ...

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Materials Handling and Site Layout Control

I. D. Tommelein
Pages 297-304

Construction field operations are markedly inefficient in terms of where and how materials get stored and handled. This is often due uncertainty at the time of advance planning, the difficulties associated with achieving real-time coordination, and lack of control in the field, as materials get delivered and used by many different people throughout the construction process. At any given point ...

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Automating Dynamic Layout Construction

P. P. Zouein, I. D. Tommelein
Pages 409-416

A critical problem in dynamic environments and especially on construction sites is coordinating the use of limited space to accommodate resources and their changing demand for space over time. This paper presents a heuristic model that allocates site space to resources associated with an activity schedule so that no spatial conflicts would arise and all resources can be functional. ...

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Identifying Key Features in a Building Using a Single Uncalibrated Camera

Alastair M. Paterson, Geoff R. Dowling, Dennis A. Chamberlain
Pages 657-664

This paper describes the application of image processing to the automation of external building inspection. A robot is used to locate defects which need to have their positions accurately recorded. The first stage in this process is to locate the robot on the building and a method is proposed where a single image is all that is required to find ...

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1993 Proceedings of the 10th ISARC, Houston, USA 1993

Automated Construction in the ATLSS Integrated Building Systems

B. Vincent Viscomi, William D. Michalerya, Le-Wu Lu
Pages 9-16

The AIBS (ATLSS Integrated Building Systems) program was developed to coordinate on-going research projects in automated construction and connections systems. The objective of this program is to design, fabricate, erect, and evaluate cost-effective building systems with a focus on providing a computer integrated approach to these activities. A family of structural systems, called ATLSS connections, are being developed with enhanced ...

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Application of Large-Scale Manipulators in the Construction Environment

Ting-Ya Hsieh, Carl T. Haas
Pages 55-62

Large-Scale Manipulators (LSMs) are gaining attention in construction automation research because of their long reach and positioning capabilities. A case study based on the Model Plant data compiled by the Construction Industry Institute indicates that LSMs have very high potential in industrial construction. They can be used for pipe, cable tray and structural steel erection as well as elevated concrete ...

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Evaluation of the Position Accuracy of the Excavator Tool

Fiorenzo Malaguti
Pages 117-123

The automation and robotics for earth moving machines were introduced to reduce labor cost and increase machines performances, the increment of position accuracy of the excavator bucket obtained by laser and/or automatic control systems meets both objects. Experimental tests and simulations have shown excavating accuracy to be about two centimeters, the excavating accuracy depends on position accuracy of excavator boom ...

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Robot Implementation Decisions in the Australian Construction Industry

Cecily Neil, Gustav Salomonsson, Miroslaw Skibniewski
Pages 133-140

This paper presents a model for managers to use to assess the feasibility of robotising particular tasks on a construction site. A case study illustrates the applications of the model with respect to the use of concreting robots on a construction project. This case study highlights the importance of taking into account the overall work process on a site when ...

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SIMBASE: A Decision Support System for Economic Justification of Automated Construction Technology

Jae-Jeung Rho, Deborah J. Fisher, Michael W. O'Neill
Pages 141-148

Methodology for the economic justification of automated technology has already been developed in the manufacturing arena. This paper discusses the modifications required for application of this methodology to the construction industry. Modifications are necessary due to the industry’s conservative nature in adapting new technology, the fact that the construction process resembles more a job shop production system rather than a ...

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Propeller Type Wall-Climbing Robot for Inspection Use

A. Nishi, H. Miyagi
Pages 189-196

Use of a wall-climbing robot for inspection or maintenance of wall surfaces has been anticipated for a long time. Three quite different models have been developed in our laboratory. The present model can move on a wall by using the thrust force of a propeller and can fly whenever it is required. Its mechanism and control system are discussed.

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Graphical Site Simulation Using an Object Oriented CAD Model

Toshihiko Aoki, Takahiko Kimura, Kazuhiro Momozaki, Aketo Suzuki
Pages 213-220

Recently, CAD research has concentrated on shifting CAD systems from the traditional line based structure to a more intelligent and object oriented structure. Most work in this area, however, has concentrated on developing applications for design work, leaving construction phase applications largely ignored. The authors of this paper have begun development work on PRISM (Project Representing Intelligent Site Modeler), an ...

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Modeling of Building Construction Activities Using Forms

Amr A. Oloufa
Pages 237-244

In the course of improving the efficiency of building construction activities, the application of discrete event simulation tools may be extremely beneficial. Simulation is used to evaluate construction scenarios and allows the construction manager to evaluate between alternatives. Selection of an optimum mix of equipment and crews may also be studied. However, the practice of simulation in building construction has ...

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Research on Components of Underground Excavation Robot

Keiko Homma, Tatsuo Arai, Hironori Adachi, Tatsuya Nakamura
Pages 245-252

This paper describes the basic research for an underground excavation robot. This robot consists of three system components: the manipulation system, the locomotion system, and the task planning system. In order to keep the operator away from the hazardous worksite, the task should be performed through teleoperation or performed autonomously. Two different teleoperation systems using parallel link manipulators have been ...

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Performance Evaluation Model for Construction Manipulators

Ting-Ya Hsieh; Dr. Carl T Haas
Pages 301-308

This paper describes a model for evaluating the performance of construction manipulators. It involves four steps: (1) constructing the operation plan, (2) evaluating task and machine related parameters, (3) evaluating time components and, (4) total time study. Each of these steps is described in detail, and a hypothetical example is used to demonstrate the procedure. The result indicate that based ...

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Robot Oriented Modular Construction System - Part II: Design and Logistics

H. Kurita, T. Tezuka, H. Takada
Pages 309-316

The 3-Dimensional Modular Unit Construction System involves constructing a) in fixed cycle time using b) 3-D Modular Unit Building Blocks which are assembled at a c) “factory” automated staging area on the jobsite prior to be lifted into place on the building. This system has great potential to facilitate the use of robots on the jobsite and dramatically reduce the ...

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Site Layout of Construction Temporary Facilities Using Enhanced-Geographic Information System (GIS)

Min-Yuan Cheng, James T. O'Connor
Pages 399-406

This paper focuses on developing an automated site layout system for temporary construction facilities. The site layout of temporary facilities (TF) is an important preplanning task that can either enhance or adversely affect the construction productivity. An efficient TF layout can significantly reduce construction conflicts and improve project efficiency. In this research, the system, ArcSite, was developed to assist the ...

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Space Scheduling for Construction Progress Planning and Control

I. D. Tommelien, P. P. Zouein
Pages 415-422

Space scheduling pertains to allocating the work space to resources associated which activates in a schedule as it changes over time. This is an important aspect of materials management in dynamic environments in which many pieces of equipment, crews, and possibly robots move about, as congestion and interference would seriously hamper production. Advanced space scheduling is then warranted to reduce ...

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Integration in Design and Simulation

Robert F. Sullivan
Pages 423-430

Today, the three dimensional (3D) solids modeling design technology and the deployment of integrated relational databases on projects in construction industry have provided the opportunity for advancing the level of achievable integration and automation in the design, construction, and operation of major industrial facilities. The key development has been linking together of these technologies into one system to allow for ...

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Simulation Analysis of Process Piping Construction

Min-Yuan Cheng, James T. O'Connor
Pages 519-526

Previous research has demonstrated the automation can improve the industrial pipe lifting productivity. However, there is little information on finding how much productivity can be improved in other parts of pipe erection process to coordinate with the productivity improvement in pipe lifting. The processes of piping construction include pipe delivery, pipe lifting, pipe alignment, pipe connection, and pipe inspection & ...

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1992 Proceedings of the 9th ISARC, Tokyo, Japan 1992

Robot Oriented Modular Construction System

Takehito Tezuka, Hiroo Takada
Pages 123-132

The tasks that the construction industry should be accomplished at construction sites today and in the future are the saving labor and the reduction of the construction period.to accomplish these challenging objectives, automatic and robotic construction systems of construction work have been actively by construction industry Japan. However, a basic concept of a proposed automatic and robotic construction system. ...

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Management of Spatial Information for Construction Planning and Design Using Geographical Information Systems (GIS)

Min-Yuan Cheng, Koshy Varghese, James T. O'Connor
Pages 393-402

Geographic information systems (GIS),a technology for spatial data analysis which is widely used in geology, appears to have significant potential in construction applications. GIS as well as computer-aided design (CAD) are two computerized systems widely used in engineering design and spatial management. Currently, CAD is the most popular tool in geometric model creating. However, due to the poor capability in ...

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Time-Dependent Evolution of Work Packages

Yu-Lin Huang, C.William Ibbs, Yusuke Yamazaki
Pages 441-450

We are working on a common information model called UNIWBS which uses the work breakdown structure concept .UNIWBS is intended to support project information integration and project planning and control as well. By using the UNIWBS, we are also developing a conceptual knowledge-based expert system called DYNAPACK for generating planning, design, and construction work packages. DYNAPACK will be a testbed ...

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Simulation of a Panel Positioning Robot

Javier Ibanez-Guzman, Brian Atkin, Peter Atkinson
Pages 451-458

This paper describes the work and results of a feasibility study into the simulation of a panel positioning robot. A kinematic model was built, using GRASP and ROBCAD software, to simulate robot motion and to determine optimal configuration, cycle times and work envelopes. A dynamic model was then built, using TUTISM, in order to determine the robot’s dynamic response to ...

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COOPS - Construction Object-Oriented Process Simulation System

Photios G. Ioannou, Liang Y. Liu
Pages 459-468

This paper describes the modeling concepts and design of COOP, a new general purpose discrete-event simulation system for construction process modeling. COOPS simulation models are represented by graphical networks that are constructed interactively on the screen using primitive objects, such as activities, queues, consolidation nodes, routers, links, flags, resources, and free text. All primitive modeling elements are implemented as integrated ...

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An Object-Oriented Simulation System for Construction Operations

Naruo Kano, Norihiro Minami
Pages 469-478

This paper presents the methodology for simulating the process of construction operations by using object-oriented approach. Authors developed a prototype system to model construction operations and to simulate their behaviour at site, which included the random effects of weather and productivity in operations. Through the implementations of this prototype system, authors concluded the object-oriented simulation system would be a competent ...

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Automation of Robot Operation Planning Based on Product Modelling, a Case Study for Suspended Ceiling Installation Robots

Ronald Krom; Frits Tolman
Pages 497-506

This paper describes how product model information together with building knowledge is used to generate robot operation plans. This approach is explained using a case of the design and installation of a suspended ceiling system. In this case study an information reference model for suspended ceiling product models is discussed. Also suspended ceiling installation knowledge is formalized using predicate logic. ...

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Controlling an Intelligent Excavator for Autonomous Digging in Difficult Ground

Derek Seward, David Bradley, Jim Mann, Mark Goodwin
Pages 743-750

This paper reports on the recent advances made in developing an autonomous robot excavator. Previous work on a fifth-scale model was reported at earlier symposia, but the technology has now been transferred to a real excavator – LUCIE – Lancaster University Computerised Intelligent Excavator. The paper concentrates on the architecture of the software control which enables the machine to modify ...

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Forces Prediction of Underwater Soil Cutting by Excavating Robots

Igor Nedorezov
Pages 759-765

The paper deals with the problem of forecasting forces, acting on operating devices (blades) of underwater excavating robots in the course of soil cutting, by means of mathematical simulation methods. To this end, the structure of soil underwater cutting process has been represented as three interacting subsystems: operating device, soil medium and water medium. The processes of cutting forces time ...

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Automatic Level Control of Bulldozer Blade Based on Fuzzy Theory

Ryoichi Fukagawa, Tatsuro Muro
Pages 793-802

Ground leveling by bulldozer blade should be automatically controlled since the operation is an exhausting work for the bulldozer operator. In this paper, fuzzy control is used for the blade operation in the ground leveling. A series of tests using model bulldozing vehicle are carried out to check the effects of membership functions in the fuzzy control and the vehicle ...

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Towards Computer Integrated Road Construction

Peyret Francois, Philippe Herve
Pages 859-868

Two noticeable events will spend-up the development of road construction robotics: - the recent availability on the market of adapted localization systems, - the increasingly developing utilization of computer aided design in the study of road construction projects.Currently, no links do exist between the design studies and the construction work involving digital data which could be used ...

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Task and Motion Planning Technique for Designing Group Control System in Robotic Construction Work

Kinya Tamaki, Yukio Hasegawa, Miroslaw J. Skibniewski
Pages 897-906

The purpose of this paper is to describe a task and motion planning technique for designing a group control system in robotic construction works. This technique deals with hierarchical control of multiple robots and peripheral machinery in an automated construction work-cell. The technique consists of two phases: the task planning and the motion planning. The task planning phase illustrates the ...

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1991 Proceedings of the 8th ISARC, Stuttgart, Germany 1991

Excavator Dynamics and Effect of Soil on Digging

P. K. Vaha, A. J. Koivo, M. J. Skibniewski
Pages 297-306

Automation of excavation work calls for a robotic system able to perform the planned digging work and responsive to interaction forces experienced during excavation. The development of automated excavation control method requires a dynamic model to describe the evolution of the excavator motion with time. The joint torques of the boom mechanism are generated by hydraulic rams which also affect ...

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An Integrated Construction Management System for Site Precast Concrete

Yoshikazu Sasaki, Tetsuo Kanaiwa
Pages 399-408

In order to manage site precast concrete construction which has been increasing, an integrated construction management system employing a unique 3-D modelling method and analogue process input method was developed. At the planning stage, the system supports interactive planning between member configuration and installation planning, by a visual method and with an accurate quantity. At the process control stage employing ...

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Modelling and Controlling the Road Finishing Process

Jean-Louis Gourdon, Francois Peyret
Pages 479-488

Among the road construction tasks, finishing is one of the most important because, once carried out, nothing can be done anymore to improve the quality of the profile. The behaviour of this equipment and of the material it handles is more complicated that it seems to be. The most significant point of this paper is the original mathematical model of the process ...

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A Hybrid Neural Network Methodology for Cost Estimation

Osama Moselhi, Tarek Hegazy and Paul Fazio
Pages 519-528

This paper presents an integrated systems approach, utilizing a hybrid methodology for the generation of practical cost and schedule baselines and for bid preparation under the prevailing competitive bidding environment. The system incorporates enhancements to the various functions that cover the quantitative aspects of estimate preparation, including: direct and indirect cost estimation, planning and scheduling, and resource utilization. For practicality, ...

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Control of a Track Vehicle for Construction Automation

Mika Matikainen, Hannu Lehtinen
Pages 551-560

The mobile construction robot system of VTT consists of a track based vehicle, an industrial robot, support legs and process tooling. The main purpose of the control of the vehicle is the navigation and estimation of the position of the vehicle on construction site with an accuracy of ±50mm.The system takes also care of the support legs and communications between ...

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Modelling and Control of a Hydraulic Large Range Robot

U. Hirsch, A. Jacubasch, H. B. Kuntze, F. Eberle, B. Goller
Pages 609-620

Large range robots are of increasing importance for various difficult applications at building sites or in hazardous areas. In collaboration with industrial partners the KfK has developed such extended multi point (EMIR) which is driven by hydraulic actuators. The position control of EMIR is a tough problem due to the extreme nonlinearities of the kinematics and hydraulic actuators as well ...

Keywords: Hydraulic large range robot,automatic control, modelling of nonlinearities and elasticity, model-based control concepts

Intuitive Simulation Modelling Using Object Oriented Constructs

Amr A. Oloufa
Pages 727-736

The development and computer coding of an accurate simulation model is probably the most important time consuming activity in the modelling of systems and the operations they are involved in. This hardship has confined the use of simulation modelling to the planning stages of the project. The object oriented view is that system is composed of interacting physical objects. Work ...

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Integrated Product and Process Modelling for Construction Robot Control

Ronald Krom, Frits Tolman
Pages 737-746

This paper discusses the role of product modelling technology in construction robotics control. Information models for the representation of construction product and process information enable more intelligent behaviour of construction robot tools, because construction knowledge can be transferred into the robots. In this paper an information model is presented for product as well as process information. The power of such ...

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Simulation Analysis of Automated Earth Boring Methods

Daniel W. Halpin, Antonio A. Gonzalez-Quevedo, Simaan AbouRizk
Pages 747-754

Simulation offers a tool that enables the simulator to compare alternative technologies in an environment that closely models the real world. Advantages of automation from a production perspective can be established by building a simulation model and experimenting with it on the computer. This paper illustrates this by specifically simulating a liner plate tunnelling system using MicroCYCLONE, an easy-to-use simulation ...

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Directional Control Employing Fuzzy Reasoning of a Micro Tunnelling System

Toshio Takatsuka, Tomohiro Kurosawa, Yoshihiro Harada
Pages 893-900

NTT has developed a micro tunnelling system with new directional control employing fuzzy reasoning which can construct a tunnel along the designed line well, in response to a shortage in experienced operators and the need to improve the working condition. Fuzzy reasoning, in which the know-how acquired form experienced operators are loaded, are certified using a dynamic model capable of ...

Keywords: Fuzzy reasoning, directional control, microtunneling

Progress in a Masonry Tasking Robot

Denis Chamberlain, Philip Speare, Seshagiri Ala
Pages 909-918

Four major strands of development are reported; the experimental robot cell for masonry tasking currently being built is described, the operational tolerances required are established and the means of achieving them discussed, an account is given of work undertaken on the production, dispensing and application of bond materials and a CAD model for vision sensing for use in design and ...

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Tile Setting Robot for Exterior Wall

Hitoshi Tomaru, Hitoshi Haino, Seiichirou Ishikawa
Pages 929-936

Komatsu Ltd., Japan Ceramic Tile Association, and Hazama Corporation organized the developing committee of construction robot in 1988, and have been working on the tile setting robot jointly. The tile setting robot has two functions, one is to set tile for exterior wall of building, and the other is to lay (mortaring and finishing) undercoat of building. In this paper, we ...

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1990 Proceedings of the 7th ISARC, Bristol, United Kingdom 1990

A Masonry Tasking Robot

Denis Chamberlain, Philip Speare, Geoffrey West
Pages 1-8

A gantry type robot is being developed for performing masonry tasks, a traditional and extensive activity. For this, vision is considered to be the prime sensor mechanism for inspection and guidance. A CAD model of the block component has been investigated for use in the design, vision and planning tasks. Free of the restraints for the manual process, the block ...

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Object Oriented Simulation of Earthmoving Operations

Amr A. Oloufa
Pages 55-62

The objective of this paper is to identify and study object oriented constrsucts exhibiting feedback mechanisms required for the operational simulation of construction projects. To illustrate the concepts involved, we choose a demonstration in earthmoving operations. Contrary to manufacturing operations, the "factory floor", i.e. the construction site, has a profound impact on the performance of operational resources. Any meaningful representation ...

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Improvement of the Painting Robot (FR-1) and its Application to the Site

S. Sakai, S. Tokioka, M. Wada, H. Inagaki, I. Kasahara, S. Ishigami
Pages 71-78

In june 1988, the first test model(FR-1) of the painting robot was developed, its painting robotization was subjected to a demostration test which, in the Fukushima No.2 Nuclear power plant of the Tokyo Electrical power company was conducted on the outer walls of the sea water heat exchanger building. Based upon the achievements in Fukushma, especially in order to assure ...

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Wall Climbing Robot and its Applications for Building Construction

Valery Gradetsky, Michael Rachkov
Pages 111-117

The paper presents the description of the basic model of the Wall Climbing robot consisting of three main modules: transport, technological manipulator and control. The experience of the designing and rational attaching methods and devices are analyzed. The main devices of the robots like drives, sensors, control, grippers are discussed. The application of Wall climbing robots for building construction for ...

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Control System Design for a Robotic Backhoe

R.H. Bracewell, D.A. Bradley, R.V. Chaplin, D.W. Seward
Pages 222-229

This paper describes the main requirements for, implementation details of and philosophy behind, the controller currently being implemented on a 1/5th scale model "JCB sytle" backhoe arm at Lancaster University. It is somewhat unconvectional in its use of the Harrid RTX2000 microprocessor and FORTH language, which offers great potential for real-time "intelligent" control.

Keywords: FORTH,Harris RTX2000, STE bus, real-time, production system, Inmos Transputer, FORPS

The Evaluation of Expert Systems for Construction Planning

Carlos T. Formoso, Peter S. Brandon
Pages 277-284

A micro-computer based expert system in field of construction planning of hose building has been developed. This system encapsulates some of the knowledge experts in the field use for programming the used by construction planners as a decision making supporting tool. The evalution processer device for this system has focused on the validation of the planners‘expertise model. This paper ...

Keywords: Expert systems, Construction planning, House building

Construction Information System: Integrating Data/Information Systems and Expert Systems

James H. Paek, Norbert L. Lovata
Pages 327-333

Within the academic and construction communities, there has been growing concern about how to deal accurately with the ever-changing nature of the whole construction business. In order to deal with the hostile construction environment, there is a great need in the construction industry to develop and implement a practical monitoring system which can handle the data bases, information systems, and ...

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Sirem: The Absolute Location of Civil Engineering Equipment

Jean Francois Le Corre, Francois Peyret
Pages 391-398

After having shown the necessity to locate in the three dimensions the civil engineering machines whose tasks are to be automated, the authors recall the advantages and disadvantages of the different existing systems and methods. The main point of the system is about an original location system using an on-board measuring device and everstanding luminous grade stakes. In a first ...

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Conception of a Multisensors System for a Mobile Robot Applied to the Building Industry

D. Juge-Hubert, A. Schmitt
Pages 439-446

A mobile robot of the fourth generation requires an on-line, real-time sensory feedback system to guide the robot, to stay on planned path, or to avoid unexpected obstacles. The study we oresent in this paper concerns a multisensors and multiprocessors fusion in order to create a new model of the mobile robot's world. The solution we suggest for a dynamic ...

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Object Oriented Programming for Project Management Software

Thomas M. Froese, Boyd C. Paulson
Pages 513-520

What does object oriented programming have to offer project management software systems? This question is examined by first seeking out those development trends and directions that will be of importance for project management systems in the future. These are ability to the flexibility, integration and intelligence. The basic characteristics of object oriented programming are then described; namely the use of ...

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A Framework for the Management of Construction Robotics and Automation

Ben Obinero Uwakweh
Pages 556-563

The management of construction automation androbotics are as important as the technological aspects for the successful implementation of the tecnology in the construction industry. Quality, reliability, productivity, and competitiveness are commonly advanced as the motivation for implementing robots and automation in construction operations. However, the emphasis has been mostly on technological issues with little consideration on management and human factors. ...

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A Proposed Model Framework for the Socio-Economic and Technical Appraisal of Automation and Robotic Application in Construction

R. Howes, S. Naoum, S. Gruneberg
Pages 591-601

This paper describes a research proposal intended to evaluate the viability of construction automation and robotic applications by the introduction of a two component model consisting of product and automation variables with each interact with their environment. the intention is that obth a qualitative and quantitative evaluation can be made to determine the most appropriate applications for construction robots. It ...

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1989 Proceedings of the 6th ISARC, San Francisco, USA 1989

The Cross Fertilization of Construction and Manufacturing through Computer Integration

Victor E. Sanvido, Deborah J.Medeiros
Pages 73-79

This paper compares the process similarities between the manufacturing and construction industries and identifies areas for cross fertilization through techniques that have been effectively applied to solving productivity problems. ...

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Development and Simulation of an Ergonomic Control System for Large Construction Manipulator

D.G. Alciatore; P.J. Hughes; A.E. Traver; J.T. O'Connor
Pages 183-188

This paper discusses the development and implementation of a new ergonomic manual control system for a large construction manipulator. The manipulator consists of a 22 ton rough terrain hydraulic crane with a multifunction manipulator attachment. The combined device gives a single operator hydraulic control over eight independent joint axes allowing for dextrous positioning of large sections of pipe or steel. ...

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A Least-Commitment Approach to Planning Construction Projects with Repeated Cycles of Operation

Nabil A. Kartam, Raymond E. Levitt
Pages 189-196

Knowledge representation and reasoning techniques derived from Artificial Intelligence (AI) research permit computers to generate plans, not merely analyze plans generated by human planners. They explicitly represent knowledge about how generate plans in the form of initial and goal states, descriptions of actions along with their preconditions and effects, and a control structure for selecting new actions to insert into ...

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An A.I. Approach to Automating the Recognition and Evaluation of Logic Classes in Construction Scheduling

W H Askew, M J Mawdesley, J A N Booth
Pages 197-203

Construction schedules exist in many forms to serve many purposes. They are prepared by various means by different individuals either manually or aided by computer software. Work which is underway to automate the production of schedules is now being supplemented by the development of an evaluation package for general usage. Outlined in this paper are aspects of a research project ...

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Study of the Various Means of Perception in Mobile Robotics Applied to the Building Industry

D. Juge, A. Schmitt
Pages 245-252

A project, named ROBAT, of design and realization of an autonomous mobile platform for the building industry, achieving tasks at the end of carcass work, is currently developed within the ECOLE DES MINES DE DOUAI. Generally, it is possible to give a model for third generation mobile robots, which is a chain with three links: Perception Decision Action. In order ...

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Sightplan: An Artificial Intelligence Tool to Assist Construction Managers with Site Layout

Iris D. Tommelein, Raymond E. Levitt, Barbara Hayes-Roth
Pages 340-347

SightPlan is an expert system that performs construction site layout. The system contains an explicit representation of the strategy it follows to construct a solution. Based on the assumption that the cognitive capabilities of ana agent have an impact on the strategy that agent follows during problem-solving, we decided to experiment with alternate strategies. We modeled one strategy after the ...

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Design of an Interior Finishing Robot with a Simulation Model

A. Warszawski, R. Navon
Pages 467-474

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Animation/Simulation for Construction Planning and Scheduling

Stephen Ditlinger, Kermit Gates
Pages 491-498

Construction CAE is a simulation, planning, and scheduling software system that integrates a Computer Aided Design (CAD) system with a relational database management system (RDBMS) and cost control tools. The system takes the CAD three-dimensional model data as input and stores it in the RDBMS. The data is then extracted from the RDBMS into the system allowing a user to ...

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A Knowledge-Based Simulation System for Construction Process Operations

Naruo Kano
Pages 499-506

The author points out that the existing simulation systems cannot represent precisely the ill-structured logic in construction operations without if-then representation. He also discusses the methodologies of system simulation which are based on artificial intelligence methods. The author then presents a prototype system developed of the simulation system, and shows an example of simulation models and the results using the ...

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Development of a New Steel Erection System - WASCOR Research Project Report (Part 3)

Yukio Hasegawa, Yusuke Matsushita, Toshio Nakamura, Toshikazu Miyazima, Masayuki Terao, Masahiro Nishimura, Yoshinari Mizoue, Junji Taira
Pages 515-522

This paper introduces a new erection system of steel beams and columns by applying robots for building construction. This system is composed of crane, positioning, adjusting, welding, climbing scaffold robot and so forth. Features of this system are shown by the following items. a) Robots for positioning, adjusting and welding operations are mounted on a platform. b) The platform ...

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Symbolic Unified Project Representation (SUPR) Model: an Environment for Automated Construction

Francois Grobler, Simon Kim, LeRoy T. Boyer
Pages 545-552

The Symbolic Unified Project Representation (SUPR) Model was developed to achieve integration of construction information. It provides modular units, and the environment necessary to model project information in a unified manner, thus enabling diverse systems to collaborate and share information. Construction robots are becoming increasingly important construction resources, and their integration into an overall project representation is highly desirable. The ...

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Construction Activity Modelling for Automation

Sotiris A. Pagdadis; James T. O'Connor
Pages 561-568

Modeling of global work environments requires the implementation of techniques capable of explicitly defining and capturing interrelationships amongst the individual components that comprise the system. A construction environment creates particular modeling challenges that are a result of its loosely defined working infrastructure. In a detailed effort to develop a methodology for evaluating the automation potential of construction activities, and the ...

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Automated Knowledge Acquistion for Building Diagnosis Expert Systems

Thomas M. Gatton; Frank W. Kearney
Pages 577-583

The knowledge acquisition process in traditional knowledge engineering methods has been identified as the bottleneck in the development of expert systems. A system called the Interactive Domain Model (IDM) has been developed to automate the development of diagnostic expert systems. The IDM embodies meta-knowledge about the diagnosis of physical systems, such as buildings and machines, and views a particular model ...

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1988 Proceedings of the 5th ISARC, Tokyo, Japan 1988

Elements for Spatial Reasoning in Construction

Christian Giraud, Stephane Hanrot
Pages 105-114

According to AI techniques we see spatial reasoning, in construction, as generation and solving of goals involving a spatial representation model of buildings defining a rich taxonomy of parts and elements, and spatial relationships between these parts and elements. We define spatial representation model and spatial relationship from previous experiments in architect knowledge representation and automated surveying. The aim is ...

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Adapting Building Technology to Facilitate Robotization

Brian Atkin
Pages 221-228

This paper reports on the preliminary work of a research project which is looking at the extent to which modifications in basic building technology might be necessary to accelerate the progressive robotization of on-site production processes. The research programme, which is outlined, will incorporate studies of on-site processes for certain superstructure elements of factory and office buildings. A subsequent stage ...

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Research & Development on Robotic Systems for Assembly and Finishing Work

Takatoshi Ueno, Yasuo Kajioka, Hitoshi Sato, Junichiro Maeda, Nobuhiro Okuyama
Pages 279-288

The aim of this paper is to explain four robotic systems for assembly and finishing work in building construction. "Mighty Shackle Ace" is a radio control auto-release clamp to execute steel column and beam erection safely and efficiently. "FLATKN" is a concrete slab finishing robot which provides high work efficiency and good finish quality. "CFR- 1" is a ceiling panel ...

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A Position and Heading Measurement System for Robots - Laser Navigator

Ken-ichi Nishide, Moritomo Hanawa, Norio Hori
Pages 317-324

This paper describes the development of a position and heading measurement system using for moving robots ( we call ""LASER NAVIGATOR"" ), which is composed of a scanning laser unit (SLU) mounted on a robot and three or more corner-cubes ( retro-reflectors ) fixed on the ground. A coordinate system and corner-cubes are arbitrarily set on a horizontal plane, and ...

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Issues in Domain Modeling of Constructed Facilities

Walid T. Keirouz, Daniel R. Rehak, Irving J. Oppenheim
Pages 341-350

Robots operating in a constructed facility must possess knowledge about and a description of their environment. This information is organized into a domain model. This paper presents current work investigating issues in developing domain models of constructed facilities for robotic applications using an object-oriented approach. Requirements regarding model contents and functionality are identified and the basic architecture of a modeling ...

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Site Layout and Resource Scheduling - An Approach to Modelling Movement around Sites

M J Mawdesley, G Cullingford, A Haddadi
Pages 391-400

This paper describes the results of experiments carried out in order to model the movement of resources round a construction site. The model deve16ped takes into account the accesses provided, the layout of the facilities on the site, the shape of the structural elements and the shape and size of the resources. The results show that it is possible and ...

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Construction Planex: A Knowledge Intensive Planner for Construction Projects

Carlos Zozaya-Gorostiza, Chris Hendrickson, Daniel R. Rehak, Peter Lim
Pages 511-520

This paper reviews the capabilities and application of the CONSTRUCTION PLANEX system. This knowledge-based expert system assists in the selection of construction technology, the definition of work tasks, the estimation of required resources and durations, the estimation of costs, and the preparation of a project schedule. The system has been applied in laboratory simulations in three ways: interactively as an ...

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Bipedal Walking Robot Capable of Moving on a Vertical Wall for Inspection Use

Akira Nishi
Pages 581-588

A robot capable of moving on a vertical or overhanging wall has been expected for inspection use of the outer walls of tall buildings, dams, and some other vertical walls. For the purpose, the sucking force produces by the negative pressure in the suckers is available to sustain the robot on the surfaces. To adopt a robot to the various ...

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A Multi-Link Multi-Purpose Advanced Manipulator with a Large Handling Hemisphere for Out-Door Applications

Dieter Smidt, Christian Blume, Matthias Wadle
Pages 625-634

Multi-link articulated booms have a multitude of applications in civil engineering, e.g. concrete pouring, building maintenance etc., but also firefighting. In the Kernforschungszentrum Karlsruhe (KfK) a new system with a multi-link articulated boom of 22.2 m maximum length and 6 rotary axes is under development in cooperation with Putzmeister-Werk. Our development is aimed at working the system like a large ...

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Development of a Process Simulation Program (ORBIC-1) for a Building Construction Robotics System

A. Sakaguchi, T. Shiokawa, K. Hamada, Y. Yamawaki, K. Izumi, T. Wakisaka
Pages 669-678

A construction process simulation program which is called ORBIC-1, is developed. ORBIC-1 consists of Building Model Data Generation, Construction Process Simulation of Conglomerate Robots, Simulation Result Graphic Display and Simulation Result Analysis subsystems. The results of the simulation process are displayed in 3-D color animation graphics and also analyzed from a construction schematic point of view, and several kinds of ...

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An Optimum Operation of a Bulldozer Running on a Weak Terrain

Tatsuro Muro
Pages 717-726

Establishing an automatically controlled system to obtain a maximum productivity of a bulldozer running on a weak terrain, the total traffic performance of a tracked vehicle could be clarified by use of a micro-computer in robotics from initial informations of terrain material and vehicle dimensions. Here, an useful estimation method of terrain properties: cohesion, angle of internal friction, modulus of ...

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Development on Aquatic Walking Robot for Underwater Inspection

Mineo Iwasaki, Jun-ichi Akizono, Hidetoshi Takahashi, Toshihumi Umetani, Takashi Nemoto, Osamu Asakura, Kazumasa Asayama
Pages 765-774

An experimental model and a prototype model were made for development of underwater inspection robot. The experimental model is overground test robot that is not made watertight. The model was used for basic research and a debug tool for program development. The prototype model made watertight was developed after tests of the experimental model. The model is the first walking ...

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1987 Proceedings of the 4th ISARC, Haifa, Israel 1987

An Expert System for Construction Planning

Chris Hendrickson, Carlos Zozaya-Gorostiza, Daniel Rehak, Eduardo Baracco-Miller, Peter Lim
Pages 1-26

Among other concerns, construction planning involves the choice of construction technology, the definition of work tasks, the estimation of required resources and durations, the estimation of costs and the preparation of a project schedule. A prototype knowledge intensive expert system to accomplish these tasks. CONSTRUCTION PLANEX, is described in this paper. This system generates project activity networks, cost estimates ...

Keywords: Construction:Planning:Computer Application:Expert Systems:Scheduling:Project Management.

Presentation of EUREKA / GEO Project: A Façade Working Robot

Bertrand Tondu, Gilles Clement, Claude Rouveau, Rene Colas, Denis Ahsworth
Pages 94-118

The purpose of this paper is to present the EUREKA / GEO project : a robot for finishing work on facades. This project joins presently three partners : the French building construction CBC company (Campenon Bernard Construction), coordinator of the project, the british Simon Engineering company, world leader in auto-elevators, and the French CEA (Comissariat al ‘Energie Atomique), responsible for ...

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The State of the Art in Mobile Robotics

James L. Crowley
Pages 364-378

This paper presents a survey of the information processing aspects of mobile robotics, including architecture, position estimation, world modelling, sensor data integration, vision, and planning. For each topic, a definition is offered, followed by a discussion of the major issues. Points for which a consensus seems to have emerged within the scientific domain, are then presented, followed by a discussion ...

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The Dynamics of Robot Manipulators with Wheeled Base

To-Choi Lau, Zvi S. Roth
Pages 379-401

"A closed-form Newton-Euler dynamical model of a robot manipulator is derived. The model generalizes previous models in two respects: • It allows for multiple degrees of freedom per robotic joint • It allow for arbitrary placement of a local coordinate frame for each robotic link. The importance of such a model is that it enables a complete force for each robotic link. Forces ...

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A Predictive Model of the Building Design Process

Colin Gray, Edward Coles
Pages 442-446

In a complex construction industry, such as that in the UK, the building process is predominantly that of assembling components made off-site. This requires that all the components are detailed, together with the methods of fixing, sufficiently early to ensure that the components are delivered to site at the right time. The effect of this has been to increase the ...

Keywords: Design; Management; Prolog 2; Expert systems; Construction

An Integrated Approach to Geometric Modelling

Yehuda E. Kalay
Pages 447-457

Solid modelling has been recognized as a powerful computer-aided design tool, being informationally complete and semantically well-formed. However, it is insufficient by itself to support the design process of complex artifacts such as buildings, since it lacks the abstraction properties provided by computer-aided drafting tools. This paper presents an integrated approach to geometric modelling that combines the power of solid modelling ...

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1986 Proceedings of the 3rd ISARC, Marseille, France 1986

A Schematic Representation of the Designer's Logic

O. Akin, Ch-Ch Chen, B. Dave, S. Pithadavian
Pages 47-58

Nos recherches actuelles visent a developper un modele operationnet permettant de decrire la demarche des desiqners en architecture. Nous comptons representer cette demarche par deux taches essentielles: la decomposition du probleme, c'est a dire letabtissernent des parametres' descriptifs du probleme de design, et sa resolution, a partir des parametres definis precedernrnent. Nous allons decrire dans cot article une representation formelle ...

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Problématique-de l'intégration des concepts de l'intelligence artificielle dans un système de CAO en architecture

F. Guena, J.-P. Leininger, K. Zreik
Pages 256-269

This paper relates the problems encountered while developing and integrating modules for technical and cost evaluation into the CAAD system "X2A". Two major components were used to allow the system to evolve the modularity of its architecture and its construction around a data base management system working simultaneously with a set of utilities dealing with the geometrical model. When the designer modifies ...

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Intégration d'un modèle d'évaluation technique et économique de gros-cuvre de bâtiment dans un système de CAO utilisant un système de gestion de base de données réseau

J. Dufau, H. Galley, J.-C. Mangin
Pages 270-280

Les systemes de C.A.O. en Batiment sont susceptibles de servlr notamment aux fins suivantes : - 1. aide a l 'elaboration dune esquisse de batiment 2. evaluation d'une esquisse ou d'un Avant-Projet 3. realisation des documents et plans d'execution. Nous nous limiterons a revaluation technique et economique d'esquisse ou d' Avant-Projet. Apres avoir brievement defini les exigences auxquelles doit satisfaire un tel systeme et ...

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Le système M.A.R.S

D. Berbere, B. David, C. Bernanose
Pages 290-299

Le systeme M.A R.S. a pour but de supporter le processus de Programmation Architecturale. Pour cela il propose une Modelisation qui permet de prendre en compte toutes les informations que I'architecte manipule lors de ce processus (texte, graphique, images, etc_). L'organisation propose permet de bestir un modele concret comme specialisation d'un module abstrait generique. Ce modele exploite egalement la reference ...

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Castor: un modeleur 3D

M. Beigbeder
Pages 349-358

Castor, a paritr du modele CSG (Constructive Solid Geometry), accomplit deux fonctions : • d'une part, it interprete un fichier contenant une description des arbres CSG, • d'autre part, it facettise ces objets de facon a les transmettre , par l'intermediaire d'un tube UNIX, a un programme de visualisation de polygones. Castor, using the CSG (Constructive Solid Geometry) model, has two functions • ...

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CAO a Campenon Bernard - Conception de ponts

J.-P. Chanard, B. Marce
Pages 359-374

CAMPENON BERNARD is a french major company of concrete civil engineering among the first worldwide design companies. Spread of CAD system use is a leading part of its developpement. Along studies a big amount of specific softwares have been developped in the design office to perform more accurate calculations wich enable the erection of the most daring structures.The choice of ...

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Le projet informatique du groupe d'industriel G5: - faciliter i'utilisation des composants béton -faciliter la production des composants béton

M. Rollet, S. Ourties
Pages 389-400

L'utilisation des composants béton pour construire los objets architecturaux posait trois types do problémes aux concepteurs: a) prise on compte de la spécificité des composants trop en amont dans le processus de conception, b) difficulté technique pour utiliser dos composants issus de producteurs différents, c) maitrise difficile de la mise en coordination dimensionnelle. La CERIB, par l'intermédiaire du groupe d'indus'triel G5 (nomenclature PIP),pour la ...

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Major Factors in Robotization of Construction Operations

R. Kangari
Pages 469-479

La robotisation et l'automatisation de la construction d'un batiment necessitent des methodes techniques differentes de celles appliquees dans l'automatisation d'une usine. L'importance des operations , leur mobilite, le genre de techniques utilisees et les conditions de travail ne sont pas les memes pour un chantier de construction et une usine. Une plus grande intelligence , une plage de charge et ...

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Geometry and Domain Modelling for Construction Robots

R. F. Woodbury, W. T. Keirouz, I. J. Oppenheim, D. R. Rehak
Pages 520-528

Construction robots operate in an environment very different from that of manufacturing robots. This environment is less structured. more complex and more dynamic than is the norm in manufacturing. In addition. construction robots are inherently mobile, as they are engaged in building or maintaining an immobile structure whihc is large compared to their dimensions. Another complicating factor is the uniqueness ...

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Simulation Methodology in Construction Process

N. Kano
Pages 541-553

En accord avec les innovations de méthodes de construction et les robotisations au chantier. les ingénieures de construction ont besoin des instruments plus convenables de direction pour la planification et la programmation. L'auteur a developpe une inethoclologie alternative de simulation pour le processus de construction au chantier. Ce modéle de simulation. est presenté par une graphie directive et transforme en ...

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Navigation and World Modeling for a Mobile Robot: A Progress Report

J. L. Crowley
Pages 556-567

Cet articleprésente les progr-ès récents clans le développementdes robots mobiles capablesde comportement intelligent dirige par un but. Sa contribution essentielte est la description d'une architecture logicielle qui permet au systeme robotique do coordonner action et perception en utilisant la connaissance. Cette architecture so decompose en deux architectures hiérarchiques pour le contrôle de la perception et des actions. 'L'article resume les dévelopements ...

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SOFFITO : une maquette de robot mobile pour l'exécution de tâches de second-ceuvre de batiment

C. Girauld, C. Moulin, P. Thomas, J.-L. Salagnac, J.-C. Baillif, G. Gerbel
Pages 568-576

La mise en place progressive des techniques informatiques dans le secteur du Bâtiment laisse presager, a terme, des modifications importantes des methodes et des outils traditionnels. Une telle tendance est déjà marquee dans la fabrication des composants, notamment par I'introduction de machines automaiques dont certaines sont des robots utilisant des informations provenant d'une description numérique du projet de batiment. - Le ...

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The Development of the "Mark II" Mobile Robot for Concrete Slab Finishing

N. Tanaka, M. Saito, K. Arai, K. Banno, T. Ochi, S. Kikuchi
Pages 616-626

La finition du béton de dalle directement réalisée est un travail dur quil est souvent nécessaure d'exécuter'pendant Ia nuit, et la fatigue engendrée par cette tãche est énorme. Par suite; cest une tâche pour laquelle les ouvriers qualifies sont de moins en moins nombreux. C'est pour ces raisons que nous avons concentré nos recherches sur Ie développement dun robot autoroulant ...

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1985 Proceedings of the 2nd ISARC, Pittsburgh, USA 1985

1984 Proceedings of the 1st ISARC, Pittsburgh, USA 1984