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A decision support system for building refurbishment design

Abstract: "Refurbishment work in the EC currently accounts for more than one-third of the total construction output. This market is expected to grow stronger with the progressive ageing of buildings and the environment impetus to retain buildings. A further dimension is the need to adapt buildings for a greying population. There are important differences between refurbishment and new construction works. The existing building constraints the design solutions, construction technologies and work methods. Mechanisation, planning, and efficient organisation of refurbishment work is difficult, due to the small, labour intensive, and ad hoc, dynamic nature of the work. Also due to the relatively small scale of refurbishment projects, there have been no opportunities for standardisation and the applications of prefabrication and industrialisation are limited. Today, larger sized contractors are rapidly moving into the refurbishment market, in response to the shrinking new-build market and the higher technological demands of large scale refurbishment projects. The EC funded Brite Euram project 4670 is titled ‘Decision Support Systems for Building Refurbishment.’ This project has started in August 1998 and will finish in July 2001. Its objective is to develop a socio-technological-commercial framework and corresponding Decision Support Systems (DSSs) for housing refurbishment, to achieve: ? refurbishments which are more focused on user requirements; ? refurbishment designs which take into account the constraints of the existing building structure; ? increased incorporation of industrialised systems and components; ? organisational procedures and production technologies that recognise the unique nature of refurbishment work. The project is divided into three tasks. Task one aims at developing a DSS for the determination of the refurbishment demand and ballpark costs. Task two involves the development of a DSS for refurbishment design. Task three will result in a DSS for refurbishment process planning and control. This paper describes the approach followed for the ongoing development in task two, the DSS for refurbishment design. The main objectives of this task are to provide decision support at the project level. It will develop a database of layouts of representative existing housing estates and a database of preferred refurbishment layouts for these representative existing housing estates. Another database will be developed containing information on building systems and components that are relevant for the refurbishment process. Task two will establish a protocol for refurbishment design support. This protocol, which is implemented in a decision support information system, involves a number of steps that aid the user in selecting an appropriate housing layout and building systems and components that meet the user’s requirements. These steps involve the evaluation of a the user’s refurbishment demands and selection of a matching representative existing housing layout. Based on further dialog with the system, a preferred refurbishment layout is selected, which in turn is used as the basis for the selection of building systems and components that meet the performance requirements as stated by the user. The paper describes the methodology that is implemented in the system for retrieving performance requirements from the user, and the approaches for matching these to the stock of existing and preferred housing layouts available in the system’s database. The system is characterised by a flexible architecture of both the databases and the user interface, which results in a scalable system that allows the expansion of the databases with new graphical layouts and building systems and components, as well as the addition of new kinds of performance requirements. The system is implemented as an Internet application, which allows the database to be maintained centrally and facilitates world wide access to the system. The system’s implementation involves the combination of graphical and non-graphical data that can be queried and matched with only typical Internet browsing software installed at the client-side."

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Full text: content.pdf (465,782 bytes) (available to registered users only)

Series: w78:2000 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.man-software (0.029035) class.environment (0.012122) class.impact (0.010657)
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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


, 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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Full text: content.pdf (84,538 bytes) (available to registered users only)

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.


Computer aided conformance checking

Abstract: In the building process a number of problems exist with regardtobuilding regulations, causing the conformance checking process to be an island in the building process. This paper discusses an approach that enables us to perform computer aided conformance checking and to integrate the conformance checking process in the building process. The approach is based on the use of product models. This paper discusses theoretical as well as implementationaspects. The paper is an extended abstract of the Ph.D. thesis written by the author (De Waard 92).

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Full text: content.pdf (1,550,159 bytes) (available to registered users only)

Series: w78:1992 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.legal (0.035798) class.synthesis (0.030841) class.communication (0.017275)
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Permission to reproduce these papers has been graciously provided by Research Press of the National Research Council of Canada. The support of the editor, Dr. Dana Vanier, 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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Full text: content.pdf (1,214,000 bytes) (available to registered users only)

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.


_. Jarský

Modelling of buildings and projects with utility assessment

Abstract: The paper describes the methodology of computer modelling of the building process of facilities and 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 in advance. The typical network diagrams can be modified according to the spatial conditions of a certain building and to the amount of construction works and materials. For utility assessment a vector of 10 main aspects (criteria) was created with a common measure unit and certain level of importance each. A database of construction processes was created including the aspects for utility assessment. Thanks to these features the model of the building process can be made about 50 times quicker than current project management systems and it can be used for bidding, project planning and management and utility assessment.

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Full text: content.pdf (586,023 bytes) (available to registered users only)

Series: w78:2009 (browse)
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A A Aibinu, P de Jong, H Wamelink, A Koutamanis

Using Effort Distribution Analysis to Evaluate the Performance of Building Information Modeling Process

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Full text: content.pdf (128,012 bytes) (available to registered users only)

Series: w78:2014 (browse)
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A Akanmu, C J. Anumba, J I. Messner

Mechanisms for Bi-directional Coordination between Virtual Design and the Physical Construction

Abstract: There is considerable growth in the use of virtual models in the construction industry. Many projects are now based on fairly sophisticated models but the use of these models is often limited to the design and tendering/bidding stage. Much more benefit can be derived from these models by extending their use to the construction, operation and maintenance phases of a facility’s lifecycle. A good way of achieving this will involve real-time bi-directional coordination between as-designed models and the physical construction. This will enable improvements in progress monitoring, construction process control, archiving as-built status and active control of building components and sub-assemblies. To maintain bi-directional coordination, computational resources are required to tightly integrate the virtual models and the physical construction. This is termed a Cyber-Physical systems approach. This paper focuses on describing the role of the Cyber-physical systems approach in enhancing bi-directional coordination. It highlights the mechanisms necessary to facilitate this and presents future deployment scenarios to illustrate the potential benefits to the construction industry.

Keywords: Bi-directional coordination, Building Information Models, Cyber-Physical Systems, Physical Construction

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Full text: content.pdf (352,164 bytes) (available to registered users only)

Series: w78:2011 (browse)
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A Almarshad, I Motawa, S Ogunlana

INVESTIGATING KNOWLEDGE MANAGEMENT IN PUBLIC BUILDING MAINTENANCE IN KUWAIT

Abstract: Public Building Maintenance (BM) departments in Kuwait have the duty of maintaining buildings that vary in shape, type, size, complexity and purpose. The services provided by the departments extend from minor repair works to bespoke renovation and reconstruction projects making the process of maintenance complex. Knowledge Management (KM) is being implemented by organisations to improve their business performance. This paper is based on a study that investigated the current state of KM in the public part of the BM sector. Interviews were conducted to identify BM process, current KM activities and tools, barriers to knowledge sharing and perception to KM implementation. Findings of the study have assisted in modifying a proposed BM process based on procedures followed by the majority of interviewed departments, where knowledge capturing, organising, and retrieval activities can then be embedded in the process. The study revealed that there is lack of formal knowledge management techniques carried out within departments. Furthermore, there is no established communication links between branches of the same department resulting in lack of experiences and knowledge exchange between colleagues. Cultural/ethnic differences, fear of losing job, not knowing how to share knowledge and lack of time were the main barriers to knowledge sharing. However, the participants showed a positive attitude toward the introduction of a KM system with added activities and roles in the BM process related to KM.

Keywords: Building maintenance, Knowledge management, Kuwait, Public sector.

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Full text: content.pdf (684,988 bytes) (available to registered users only)

Series: w78:2011 (browse)
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A den Otter, H Jan Pels, I Iliescu

BIM VERSUS PLM: RISKS AND BENEFITS

Abstract: Applying Building Information Modeling (BIM) is a hot issue. The Building industry feels the urge to use it, but at the same time companies see huge risks, since the ownership and control of information becomes unclear when all building information is put together in one model. Also the cost and the benefits do not always land at the same place. To that account three Dutch firms operating in multi- disciplinary building & construction projects asked the authors to execute a research and design project how to solve this problem. As a result a framework for assessing risks was developed for setting up a successful BIM process. It seems the manufacturing industry is much ahead of the Building industry in using these concepts and technology, be it under the name of Product Lifecycle Management. However, comparing the approaches in the Building industry and manufacturing industry shows that, while construction is primarily interested in the risks, manufacturing is primarilyu focussed on the benefits. The paper tries to explain this difference and concludes with some suggestions to reduce risk and enhance the benefits of BIM for construction companies.

Keywords: Data collection, Product Lifecycle management, Building Information Modeling and Data storage.

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Full text: content.pdf (473,694 bytes) (available to registered users only)

Series: w78:2011 (browse)
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A Grilo,A Zutshi, R Jardim-Goncalves

BUSINESS INTEROPERABILITY IN THE CONTEXT OF BIM-BASED PROJECTS

Abstract: This paper proposes a model that closely captures the factors that are responsible for Business Interoperability in the context of collaborative business processes for the deployment of Building Information Modeling. The Business Interoperability Quotient Measurement Model (BIQMM), uses an interdisciplinary approach to capture the key elements responsible for collaboration performance and BIM platform configuration. Through the quantification of the relevance of each element to the particular collaboration scenario, and with the combination of the BIQMM with a multi-criteria decision making tool, the Analytical Network Process (ANP) approach, this model enables a quantitative analysis of Business Interoperability for BIM-based projects, so that an overall interoperability score can be calculated for enhanced performance measurements. An application scenario is presented and the application of the BIQMM and ANP, provides a comprehensive framework for interoperability measurement. The paper concludes by recognizing that relationships between business interoperability and true AEC performance improvements and subsequent economic benefits derived from BIM-based approaches needs to be further developed.

Keywords: Business Interoperability, BIM; Collaborative Working Environments

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Full text: content.pdf (206,617 bytes) (available to registered users only)

Series: w78:2011 (browse)
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