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, Jagbeck A, Karstila K

Concurrent engineering in the tendering process of building and construction

Abstract: CONCUR (Concurrent Design and Engineering in Building and Civil Engineering) is a four year initiative in the European Union Brite-EuRam workprogramme involving industry partners Skanska (Se), IVO Power Engineering (Fi) and Taylor Woodrow (UK), the specification body STABU (Nl), R and D institutions VTT (Fi) and TNO (Nl), and universities DUT (Nl) and KTH (Se). The project will develop, implement and industrially deploy an integrated CAx environment for concurrent construction tendering. CONCUR is addressing the integration of information in the stages which lead to submission of tenders. The goal is to reduce tendering cost by 30 - 50% using integrated information systems and applications. The tendering process is a complex process involving many disciplines each of which uses different types of information. . In essence it is an information refinement process, in each refinement cycle addressing the high risk aspects of the moment. In CONCUR we are addressing the integrated use of information and applications, using Project (Product and Process) Data Technology Using the major informational items the refinement process will come to information specifications. The specifications being derived are not re-invented but use is made of existing and emerging standards such as STEP and IAI. Results of the CONCUR efforts can be fed back to STEP and IAI.

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Series: w78:1998 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.represent (0.023671) class.environment (0.015688) class.impact (0.011018)
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Permission to reproduce these papers has been graciously provided by Royal Institute of Technology, Stockholm, Sweden. The assistance of the editors, Prof. Bo-Christer Björk and Dr. Adina Jägbeck, is gratefully appreciated.


Message development in the building process

Abstract: New communication media offer new opportunities to exchange information between participants in a building project. A case study was done of a specific building project from the viewpoint of a company that produces concrete floors. An executable simulation model was used to create a formal description of the information exchange process. The output of the simulation is an activity schema, a message exchange diagram and a list of messages. The schemata give insight about the information flow and are a resource for developing a strategy for the introduction of electronic communication. The messages serve as a starting point for selecting a standardized electronic message or developing a special one.

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Series: w78:1995 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.communication (0.022605) class.synthesis (0.022488) class.collaboration (0.015924)
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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.


A Asadi, A Hadavi, R J. Krizek

Bridge Life-Cycle Cost Analysis Using Artificial Neural Networks

Abstract: Life-Cycle Cost analysis can significantly assist in making investment decisions. Several recentstudies have recognized the potential benefits of Life-Cycle Cost analysis and call for use of suchanalyses when making infrastructure investments, including investments in bridges. The Life-CycleCost of a bridge consists of the total investment throughout the life of the bridge. This includes theinitial construction cost, repair and rehabilitation costs, and all maintenance costs. The ability toaccurately determine the Life-Cycle Cost of a bridge will help agencies evaluate the asset value ofexisting bridges, make better decisions on the design and construction of new ones, and chooseimproved methods and approaches for rehabilitating existing structures. Research has shown thattimely maintenance, repair, and rehabilitation can lower the Life-Cycle Cost of a bridge. However, thisis a complex and nonlinear problem, and previous studies have failed to develop a satisfactory model. One effective technique for solving nonlinear problems with complicated functions is an ArtificialNeural Network. A neural network is a powerful data-modeling tool that captures and representscomplex input/output relationships. Using a set of input and output data belonging to a particularproblem, a neural system can be trained to predict outcomes for new versions of the same problem.Accordingly, an extensive set of data (bridge dimensions, age, initial cost, and Life-Cycle Cost) for 14Chicago bridges was used to quantify the degree of success that could be achieved with this model.Sixty percent of the data was used as input to train the model and the remaining forty percent was usedto assess the success of the model for predicting the Life-Cycle Cost. The results achieved wereencouraging and suggest that the neural network model is a promising tool for predicting the LifeCycleCost ofa bridge.

Keywords: life-cycle cost, artificial neural network, Chicago Trunnion Bascule bridges. initial cost, repair and rehabilitation cost

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Series: w78:2011 (browse)
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A Cormier, S Robert, P Roger, B Hilaire

Towards a BIM-based service-oriented platform for a collaborative multidisciplinary teamwork

Abstract: With the growing trend in the building industry to usesoftware tools able to handle Building Information Model (BIM), staffs are more and more confronted with workflows conflicts. In order to improve their efficiency, up-to-date techniques for dealing with BIM sharing are required. Attempting to address this issue, a web services platform, especially optimized to deal with the already well-recognized Industry Foundation Classes (IFC) open standard, has been developed.This article describes the platform (architecture, software components, technologies), specially emphasizing on the strategies envisaged for collaborative work support. To illustrate resulting benefits for the building industry,it also gives an overview of the work already performed on a platform service dedicated to dynamic thermal simulation.

Keywords: BIM, IFC, Software-as-a-Service, Life Cycle Support, Design, Simulation

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A Grilo, R Jardim-Gonçalves & A Steiger-Garcao

Shifting the construction interoperability paradigm, in the advent of Service Oriented and Model Driven Architectures

Abstract: A major difficulty construction companies are currently facing is the lack of interoperability of software applications to manage and progress in their business. Organizations are being pressured up by new business relationships, driven for instance by new contractual challenges, which the exchange of information and documents with new partners are often incapable of being executed automatically and in electronic format. This is principally due to problems of incompatibility with the information representation adopted by the software applications they are working with. This problem arises not only during the project phase but also across the whole life cycle that includes operation and maintenance stages. In order to create the enabling conditions for the deployment of the electronic collaborative and commerce platforms it is fundamental to understand the variables that may influence its development, and how they determine the configuration of the e-platform. This paper, after present technology driven standards for the construction industry data management, it proposes the adoption of the emerging Service Oriented and Model Driven Architectures to shift forward the interoperability paradigm in this industrial sector. The paper illustrates some scenarios where significant impact is expected when adopting the proposed methodology.

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Series: w78:2005 (browse)
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Permission to reproduce these papers has been graciously provided by the Technische Universität Dresden.


A Hatami, G Morcous

Life-Cycle Cost Assessment for Bridge Management: An Application to Nebraska Bridges

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Series: w78:2014 (browse)
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A Jafari, V Valentin, M Russell

Probabilistic Life Cycle Cost Model for Sustainable Housing Retrofit Decision-Making

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A Jrade, R Abdulla

Integrating Building Information Modeling and Life Cycle Assessment Tools to Design Sustainable Buildings

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Series: w78:2012 (browse)
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A Moum

A three level approach for exploring the ICT impact on the building design process applied to a real-life project

Abstract: An understanding of how ICT impact on the building design process and the architect's role and contribution within it can be crucial for the building project success. This paper introduces a possible approach of organizing and structuring design process actions and roles, and how ICT impact on them. This approach is based on the definition of three building project levels and could contribute to a better overview of how ICT impact on the building design process and on the architect's role and contribution. The aim of this paper is to illustrate how this approach can be used to explore the ICT impact on a real-life project.

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Permission to reproduce these papers has been graciously provided by the Technische Universität Dresden.


A Redmond, A Hore, R West, J Underwood, M Alshawi

Developing a Horizontal Integrated Life Cycle Costing Analysis Model through BIM

Abstract: Advancing interoperability between design team applications has been a major challenge for advocates of open standards. The buildingSmart alliance and Open Geospatial Consortium Inc in the U.S. have developed and implemented an Architecture, Engineering, Construction, Owner Operator, Phase 1 Testbed that streamlines communications between parties at the conceptual design phase to establish an early understanding of the tradeoffs between construction cost and energy efficiency. The results of this Testbed combined with an on-going collaborative R&D project ‘Inpro’ co-funded by the European Commission to identify business and legal issues of Building Information Modeling in construction were used as theoretical propositions underlying a 2010 Delphi survey. This paper presents the results of one questionnaire of that overall study. It is anticipated that these results will contribute to (i) identifying the most appropriate applications for advancing interoperability at the early design stage, (ii) detecting the most severe barriers of BIM implementation from a business and legal viewpoint, (iii) examining the need for standards to address information exchange between design team, (iv) exploring the use of the most common interfaces for exchanging information, and (v) investigating the industry’s perception on whether the development of a Cloud based BIM Life Cycle Costing would be of significant use to the Irish and UK construction industry. The rationale for this research is to refine the results of the initial questionnaire, AECOO-1, and Inpro R&D projects in order to determine if a prototype based on developing a cloud integrated LCC model through BIM could be generated in the UK and, Ireland and if so, what would be the legalities of implementing such a project.

Keywords: Cloud, BIM, Information Exchange, Interoperability, LCC

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Series: w78:2011 (browse)
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