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M Lo Prete, L Dal Cerro, V Bonora

“Canopée des Halles de Paris” Case study for an innovative digital approach to tender competition

Abstract: The traditional tender competition procedure embeds a series of negative aspects, linked to the use of 2D technical drawings that describe geometries and technological solutions of which an architectural project is composed. The technical language linked to orthogonal projections is no longer a good medium to describe contemporary architectural concepts: during the tender a potential incoherence generated by 2D representation may lead to a not accurate evaluation of costs, risks, and time. The goal of this study is to introduce an innovative concept of digital tendering, integrating the traditional set of 2D technical drawings into a 3D interoperable model based on the widely diffused IFC format, detached from specific commercial approaches. This implemented documentation will help construction societies to better comprehend the complexity of the technical solutions, through a pedagogic 3D model which contains all the information needed for economical evaluation and a series of direct links to the whole project documentation. “Canopée des Halles” project was approached during the PRO phase, which preceded the tender competition. During this period the company DECODE played an intermediary role, developing a 3D master model based on technical information and made it evolve through a verification and correction process. Once the model was completed, DECODE acquired the documentation for the tender and started to fill the 3D model with semantic information useful during the calculation phase. Then the geometries were linked to their specific 2D technical documentation and the whole master model was exported into an IFC interoperable format. Construction companies received from the Paris City Hall a dvd, containing the 4D model (3D geometry + information), the pdf documentation attached to this and the eveBIM viewer. Into this innovative approach eveBIM represented the pedagogical instrument able to increase the comprehension of the project and provide a technical support to the calculation process through a paper-less approach.

Keywords: Digital tender competition, IFC, Interoperability, Master model, ICT strategies.

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Full text: content.pdf (466,610 bytes) (available to registered users only)

Series: w78:2011 (browse)
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Miyatake Y, Yamazaki Y, Kangari R

Tbe SMART system project: a strategy for management of information and automation technology in computer integrated construction

Abstract: In today's construction industry, information and automation technology must be viewed as potential resources. Computer Integrated Construction (CIC) is an emerging technology, and it is an approach to assisting construction f m s respond to the difficult environment in which they are operating currently. There is no standard formula for CIC. A strategy for implementing CIC should be formulated, and promoted at the highest company level. To demonstrate the concept of CIC, a prototype system should be introduced to investigate integration problems. It only presents a way of approaching the CIC. SMART (Shimizu Manufacturing system by Advanced Robotics Technology) system is a part of Shimizu s strategy for developing CIC based on site automation systems which automates a wide range of construction process. It also integrates a wide range of design, planning and management activities of the project. By introducing SMART system, amount of labour required and the construction period are both reduced significantly, and the planning and management productivity is increased. The objective of this paper is to describe the strategy in management of information and automation technology development from a Japanese construction company' s view point, and to present a prototype made1 for CIC implementation. Although the prototype system is not established as a comprehensive system, it can be viewed as a strategy toward a total CIC.

Keywords: automation; computer; integration; construction; robotics; information

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Full text: content.pdf (813,241 bytes) (available to registered users only)

Series: w78:1993 (browse)
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Permission to reproduce these papers has been graciously provided by the National University of Singapore. The assistance of the editors, particularly Prof. Martin Betts, is gratefully appreciated.


Myllymäki R

Demands made on the it organisation by businessprocess re-engineering

Abstract: Collaboration between information technology (IT) staff and construction managers is a basiccondition for a successful business process re-engineering project. Since such collaboration is notalways free from problems, this paper focus on preparations that will assist the IT organisation tomeet the challenges of a business process re-engineering project. The viewpoint taken is that of theIT manager.The material in this paper is based on experience gained in YIT Corporation in the period 1989-1997. During these years the writer participated in several information system development projectsas project secretary or project manager, and has been responsible for IT matters in YIT Corporationsince 1995. YIT Corporation is a company which has a variety of interests and it is the largestconstruction company in Finland.

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Full text: content.pdf (61,379 bytes) (available to registered users only)

Series: w78:1997 (browse)
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Pilgrim M, Bouchlaghem D, Holmes M, Loveday D

Visualisation in building design and analysis

Abstract: "Research on data visualisation is undergoing major developments in a number of different fields. These developments include investigating ways of applying visualisation techniques and systems for more efficient manipulation, interpretation and presentation of data. Research into applied visualisation has so far taken place in the fields of Computational Fluid Dynamics, Medicine, Social Sciences, and the Environment. In the built environment field however, the potential of new visualisation technologies to enhance the presentation of performance data from simulation programmes (of the type used by engineering design consultants, for example) has remained almost unexplored. Improvements in this area would lead to a better and more efficient use of these simulation programs and would facilitate the interpretation of such output data by construction industry professionals, leading to better, more informed design decisions. This paper presents an initial study on Data Visualisation and its effective use in the thermal analysis of buildings. Much of the current data visualisation in the engineering and scientific world focuses on very large data sets produced by applications such as FEA, CFD or GIS. As such the tools developed to date are often too expensive or not appropriate for the visualisation of the relatively smaller data sets produced by thermal analysis tools. The objective of the work summarised here was to develop a method of visualising the data produced by the thermal analysis tools which would run on an average desktop PC and be easy to maintain/customise and above all present the data in an intuitive manner. A workplace observational study of several engineers performing such an analysis revealed each was spending a significant amount of time manipulating the output within commercial spreadsheet packages. Further studies revealed the most common tasks were the inspection of predicted internal conditions, location of glazed elements transmitting significant solar radiation and the identification of high internal surface temperatures. Two applications were therefore proposed. The first is designed to automatically process the output within the spreadsheet environment. The second is designed to display the solution in three dimensions to aid spatial recognition and data navigation. The spreadsheet tools were developed over a period of several months and then released to all users of the analysis tools. The 3D tool was developed over a longer period and has been subjected to small group tests. Each tool was developed using Microsoft Visual Basic making them both easy to maintain and freely available. The 3D tool reads in flat text files produced by the analysis and automatically generates a framed HTML page with an embedded 3D VRML world describing the building and its results. This study shows that each of the proposed applications significantly improves some of the attributes associated with usability, namely; learnability, efficiency, memorability, errors and satisfaction. The spreadsheet tool increased efficiency and decreased errors but offered no real satisfaction. The 3D tool offers increased satisfaction but at present does not efficiently present all of the data required. Finally, It is possible to develop low cost Data Visualisation tools to improve the overall usability of a thermal analysis tool within a built environment consultantcy."

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Full text: content.pdf (404,505 bytes) (available to registered users only)

Series: w78:2000 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.social (0.027102) class.environment (0.018138) class.economic (0.016196)
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Permission to reproduce these documents have been graciously provided by Icelandic Building Research Institute. The assistance of the editor, Mr. Gudni Gudnason, is gratefully appreciated


Rodrigues A

Emergency warning and management in dam rupture using online mapping

Abstract: The work presented in this paper was developed in the context of a NATO Science for Stabilityproject (NATO PO FLOODRISK- Dam Break Flood Risk Management in Portugal) that aimed todevelop tools to improve the management of flood hazards in downstream valleys of dams. Theresults of the project were applied to the Arade Valley, in the south of Portugal.The tools developed by the project involved the following: the Daminfo system, which incorporateda database holding relevant information on Portuguese dams associated with geographic data; a setof dam break models, developed in the context of the case-study in order to identify and display arange of critical inundation areas; and DamAid, an emergency warning and management system fordam ruptures.This paper describes the design and development of DamAid. Its main purpose is to provideauthorities with enough information to produce decisions in real time, with a step-by-step reminderof the emergency plans' procedures, and with sufficiently robust tools to enable the gathering ofdecision-makers that are geographically apart. The system is based on existing plans' definitions andprocedures for emergencies that may occur in the Arade valley and includes the necessary (preemergency)information to aid decision-makers during the emergency period. It also includes anonline mapping application integrating the information developed to evaluate the situation duringthe several steps of the emergency plan.

Keywords: Emergency warning and flood management, Online mapping, Internet, geographicinformation system, land use management, inundation maps.

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Full text: content.pdf (570,693 bytes) (available to registered users only)

Series: ecce:2001 (browse)
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Sarbach A

Standards and communication systems in construction planning

Abstract: A planning team today has to cope with new boundary conditions. On the one hand, these are the economic situation and structural changes in the building trade, and, on the other hand, the new technical possibilities in the planning process and in the area of communications. The standards and communication systems compiled as part of our project support both aspects. Through a uniform document management, a legal basis and the standardization of the drawings time is saved avoiding a multiple processing of the same plan documents. The standards are take into account the use of modern and direct communications and tools. The data occurring is structured and organized during the planning period, so that it can be further used in the operating phase of a building. The Engineering Data Management System manages the organizational standards and controls the different communication systems used. Thus both components are united in a single method. An essential part of our project is the development of this program. My article describes firstly the Standards, then the different communication systems and finally the developed Engineering Data Management System.

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Full text: content.pdf (2,797,760 bytes) (available to registered users only)

Series: w78:1995 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.legal (0.042675) class.economic (0.041679) class.communication (0.033688)
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Permission to reproduce these papers has been graciously provided by the Stanford University, USA. The support of the editors, particularly Prof. Fischer is gratefully appreciated.


Siu M-F,Lu M,AbouRizk S

Improving sophistication and representation of skilled labor schedules on plant shutdown and maintenance projects

Abstract: Plant shutdown and maintenance, commonly termed as the turnaround project in the industry, aims to ensure safe and reliable production of an existing oil refinery and to expand capacities of existing plant facilities. Subject to constraints such as fixed project period, limited total budget, earliest activity start times, confined working areas and emerging events and found work during project execution, it is challenging to make, track and update detailed hour-by-hour turnaround schedules so as to effectively allocate specialist trades and skilled laborers. The ultimate goal is to complete the turnaround in a fixed time window and bring plant production back on line. Different from common construction project schedules, activity definitions, logical relationships and resources availabilities constantly change. The existing project scheduling methodology and tools are not sufficient or capable to cope with turnaround scheduling. This paper is intended to reveal the complexities of a typical turnaround project. A new methodology framework is proposed to plan resource-constrained, location-based turnaround activities. An in-house developed simulation-based scheduling tool is further employed to generate detailed resource allocation plans, factoring in resource availability limits and shift calendar constraints. The resource configurations can be further optimized, resulting in the shortest total project duration. In conclusion, this research has led to significant improvements on sophistication and representation of skilled labor schedules critical to effective planning and control of turnaround projects.

Keywords: Shutdown,Maintenance,Turnaround,Scheduling,Optimization,Resource Allocation,Resource Calendars,Resource Shifts,Resource Breaks,Visualization

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Full text: content.pdf (1,327,592 bytes) (available to registered users only)

Series: convr:2013 (browse)
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Song Y, Chua D K H

COSSE: component state network centric model for verifying temporal and spatial consistency in project schedules

Abstract: Constructability analysis is critical for the success of an AEC project, but its effective implementation is difficult due to the inherent complexity and multi-trades interaction over a frequently long development period. A consistently integrated project model can provide a collaboration platform among project designers, constructors, suppliers and owners/stakeholders to jointly improve the project construction. This paper looks at the integration of the key aspects, namely product, process, resource, and function, to facilitate the collaboration in constructability analysis. Specifically, it presents a COmponent State nEtwork cEntric (COSEE) Model to integrate these 4 important project aspects. Moreover, the relationships among product, construction work package, intermediate function system, and space resource model are examined. Based on the centric component state network and the relationship among the 4 aspect models, the spatial and temporal consistency in the project schedule can be verified.

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Full text: content.pdf (376,684 bytes) (available to registered users only)

Series: w78:2003 (browse)
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Permission to reproduce these papers has been graciously provided by the University of Auckland. The assistance of the editor who provided the full texts and the structured metadata, Dr. Robert Amor, is gratefully appreciated.


Stewart P

Recent changes in the use of inforrmation technology by the Australian construction industry

Abstract: The construction industry in Australia has undergone significant restructuring in the past three years, and many companies are introducing information technology to displace labour and reduce operating costs. CAD systems are now being used widely, and the exchange of data is occurring at an increasing rate between all disciplines. This period of change provides the industry with an opportunity to introduce a rational approach to the exchange of information, and the possibility of collaboration on computerised systems that would have application across the construction industry.

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Full text: content.pdf (1,692,181 bytes) (available to registered users only)

Series: w78:1993 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.communication (0.044816) class.economic (0.009931) class.software-software (0.009197)
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Permission to reproduce these papers has been graciously provided by the National University of Singapore. The assistance of the editors, particularly Prof. Martin Betts, is gratefully appreciated.


T. Celik, Y. Baalousha & F. Ibisevic

Developing a forecasting model for the prediction of inflation rates for use in life cycle cost analysis

Abstract: Life cycle cost (LCC) is a technique that satisfies the requirements of owners for adequate analysis of total costs. Inflation rate may be considered as one of the main parameters that may have an effect on a LCC analysis of a project. Therefore it is necessary during the life cycle cost analysis to carry out a detailed analysis and predict inflation rates for the future.This paper outlines the development of an artificial neural network model for forecasting the inflation rates for the project period. The artificial neural network back propagation algorithm is implemented by using Mat lab Package. The model trained by 25 inflation index values and tested with 25 inflation index values, by comparing the two sets, the error rates was found as 0.022. LCC spreadsheet was developed in Microsoft Excel, taking into consideration all costs that may be in-curred during the project life and predicted inflation rate.

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Full text: content.pdf (164,180 bytes) (available to registered users only)

Series: w78:2009 (browse)
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