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Anfas Thowfeek, Nashwan Dawood, Ramesh Marasini, John Dean

Industrial case study of innovative managerial control system applied to site control process (IMCS-CON)

Abstract: Construction projects are complex, fragmented and highly risk business, due to the nature of construction operations. Therefore project managers require more efficient techniques and tools to plan and monitor the construc-tion project. In recent years many research studies have been carried out in order to make construction industry more efficient, profitable and attractive business. The IMCS-CON developed as decision support system for project mangers to assist project-controlling processes using a holistic approach. The IMCS-CON provide a framework to measure, analyse, review, and report performance data and enabling project management team to make corrective decision and keep project on track. The IMCS-CON system was evaluated using a case study of £2.3 million, three-story residential apartment building project in UK. The IMCS-CON system utilises multivariate statistical process control techniques to monitor the construction site variables. The MSPC combines a large number of variables into few independent vari-ables, which then can be monitored and any process deviations from the normal operating conditions can be identified with corrective actions suggested. The IMCS-CON models on-site information as quantitative variables and uses his-torical data and establishes patterns of correlated variables and assists project management in making future decisions. The outputs can also be visualised in multi-dimensional graphs. Statistics of external variables and internal variables influencing construction site operations were identified using a real life case study. The results of modelling the vari-ables and conducting experiments with IMCS-CON are analysed and discussed in this paper.

Keywords: performance measurement, construction process variables, statistical process control, construction proc-ess benchmarking, construction process improvement, construction productivity

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Full text: content.pdf (1,290,858 bytes) (available to registered users only)

Series: w78:2007 (browse)
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Annie Guerriero, Gilles Halin, Sylvain Kubicki

INTEGRATING TRUST CONCEPTS IN A DASHBOARD INTENDED FOR THE BUILDING CONSTRUCTION COORDINATOR

Abstract: The growing complexity of AEC projects leads to increase the importance of the building construction coordinator’s role. Moreover, the uncertainty linked to the environment of the building construction activity makes way for the notion of trust. The coordinator canmake use of a multiple tools/views for accomplishing his mission (e.g. planning, meeting report) but these views offer only a limited vision of the cooperation context. So we suggest analyzing data coming from these different views to obtain some trust indicators informing the coordinator about trust in the good progress of the building construction activity. Our approach distinguishes 4 aspects of the activity conditioning the global trust level: task progress, actor’s performance, documents required to perform the task, and building elements resulting from the task. Our proposal suggests introducing these trust indicators in a dashboard included in a multi-view interface allowing the coordinator identifying the tasks with a low level of trust and understanding the nature of the potential dysfunctions.

Keywords: Building construction, Coordination, Trust, IT-support, Dashboard, Model-Driven Engineering

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Full text: content.pdf (484,486 bytes) (available to registered users only)

Series: w78:2008 (browse)
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Annie Guerriero, Sylvain Kubicki, Gilles Halin

A model-based approach to develop a dashboard tool integrating trust concepts in AEC

Abstract: In the Architecture Engineering and Construction (AEC) sector, cooperation between actors is essential for project success. During the building construction activity, the organization of actors is both hierarchical, transver-sal and adhocratic. Moreover, the quality of cooperation is fundamentally influenced by the management of interde-pendences between tasks and between actors. In this context, the development of new assistance tools has to integrate these heterogeneous parameters relative to coordination and trust. We inspired about Model-Driven Engineering ap-proach to propose a models infrastructure integrating cooperation context modelling and views modelling. We develop on the basis of this infrastructure a dashboard dedicated to the building site coordinator. This tool currently in design stage provides indicators about the trust in the good progression of activity. Moreover, it would enable context under-standing by combining these indicators in a multi-views interface. Thus, the user could navigate in the context using multiple views like meeting report, planning, performance evaluation, or 3D mock-up, and obtain more information about a particular indicator.

Keywords: building construction, cooperation, coordination, trust, process modelling, dashboard, model-driven en-gineering

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Full text: content.pdf (1,622,431 bytes) (available to registered users only)

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Archer G O, Futcher K, McMahon M A

Multi-participant project informationmanagement system

Abstract: This paper examines how information technology is contributing in a significant wayto the management of construction projects. The deployment of a project informationmanagement system (PIMS) was a mandatory requirement on the construction phaseof 'Route 3, Tsing Yi and Kwai Chung Sections', which is an important element ofHong Kong Government's airport core programme of projects (ACP).The paper reviews the concerns of the Client for the ACP and how the PIMScontributed to alleviating them. It includes comments, based on empirical evidence,on the implications for the change which is needed in the construction industry as itmigrates from paper-based systems to computer-based information technologies. Inparticular the need for adherence to quality-assured site procedures within aconstruction process which is traditionally highly differentiated and transitory innature.Analysis of data and consideration of the issues, arising from the use of thePIMS in the control of costs, settlement of disputes and in the dissemination ofinformation, provides guidance, which is relevant to a deployment of PIMS in thefuture.

Keywords: construction; project-management, information management-systems.

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Full text: content.pdf (335,635 bytes) (available to registered users only)

Series: w78:1997 (browse)
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Atkin, B.L.

A Multi-Stage Decision Model for Use at the Early Design Stage of Construction Projects

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Full text: content.pdf (1,289,829 bytes) (available to registered users only)

Series: w78:1986 (browse)
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B Raphael

Multi-Criteria Decision Making for the Design of Building Façade

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Full text: content.pdf (440,454 bytes) (available to registered users only)

Series: w78:2014 (browse)
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Bjork B C, Lownertz K, Kiviniemi A

ISO 13567 - the proposed international standard for structuring layers in computer aided building design

Abstract: Layering is a widely used method for structuring data in CAD-models. During the last few years national standardisation organisations, professional association, user groups for particular CAD-systems, individual companies etc. have issued numerous standards and guidelines for the naming and structuring of layers in building design. Recently ISO has defined a draft international standard, ISO/DIS 13567, in order to increase interoperability betwen different CAD applications for building design.The principles which have been followed in the design of the draft standard are first presented, after which the paper describes the semantical organisation of the standard proposal and its default syntax. Important mandatory information categories deal with the party responsible for the information, the type of building element shown, and whether a layer contains the direct graphical description of a building part or additional information needed in an output drawing etc. Non-mandatory information categories facilitate the structuring of information in rebuilding projects, use of layers for spatial grouping in large multi-storey projects, and storing multiple representations intended for different drawing scales in the same model etc.Pilot testing of ISO 13567 is currently being carried out in a number of countries which have been involved in the definition of the standard. In the paper two implementations, which have been carried out independently in Sweden and Finland, are described. The paper concludes with a discussion of the possible benefits of the standard. Incremental development within the industry, is contrasted with the more idealistic scenario of building product models.

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Full text: content.pdf (442,818 bytes) (available to registered users only)

Series: w78:1996 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.standards (0.048516) class.synthesis (0.043906) class.represent (0.015610)
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Permission to reproduce these papers has been graciously provided by the University of Ljubljana. The assistance of the editor, Prof. Ziga Turk, is gratefully appreciated.


Björk B-C, Löwnertz K, Kiviniemi A

ISO DIS 13567 - The Proposed International Standard for Structuring Layers in Computer Aided Building Design

Abstract: Layering is a widely used method for structuring data in CAD-models. During the last few years national standardisation organisations, professional associations, user groups for particular CAD-systems, individual companies etc. have issued numerous standards and guidelines for the naming and structuring of layers in building design. In order to increase the integration of CAD data in the industry as a whole ISO recently decided to define an international standard for layer usage. The resulting standard proposal, ISO 13567, is a rather complex framework standard which strives to be more of a union than the least common denominator of the capabilities of existing guidelines. A number of principles have been followed in the design of the proposal. The first one is the separation of the conceptual organisation of information (semantics) from the way this information is coded (syntax). The second one is orthogonality - the fact that many ways of classifying information are independent of each other and can be applied in combinations. The third overriding principle is the reuse of existing national or international standards whenever appropriate. The fourth principle allows users to apply well-defined subsets of the overall superset of possible layernames. This article describes the semantic organisation of the standard proposal as well as its default syntax. Important information categories deal with the party responsible for the information, the type of building element shown, whether a layer contains the direct graphical description of a building part or additional information needed in an output drawing etc. Non-mandatory information categories facilitate the structuring of information in rebuilding projects, use of layers for spatial grouping in large multi-storey projects, and storing multiple representations intended for different drawing scales in the same model. Pilot testing of ISO 13567 is currently being carried out in a number of countries which have been involved in the definition of the standard. In the article two implementations, which have been carried out independently in Sweden and Finland, are described. The article concludes with a discussion of the benefits and possible drawbacks of the standard. Incremental development within the industry, (where ”best practice” can become ”common practice” via a standard such as ISO 13567), is contrasted with the more idealistic scenario of building product models. The relationship between CAD-layering, document management product modelling and building element classification is also discussed.

Keywords: CAD-system, layering, standardisation

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Full text: http://www.itcon.org/1997/2 (available to registered users only)

Series: itcon:1997 (browse)
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Bloomfield D, Amor R

I-SEEC: an internet gateway to european construction resources

Abstract: For the construction industries to move into the knowledge society and knowledge economy they need to be able to build upon their existing information base. This information base is unique within individual countries (though often with significant overlap between countries, for example, with Eurocodes utilised across Europe) and usually widely dispersed. Drawing together the information resources within nations, and then connecting them with each other to form trans-national resources enables a more effective, informed and intelligent industry. I-SEEC is a collaborative project funded by the European Union with the overall goal of creating an infrastructure to enable and link high quality commercial electronic information services throughout its member countries. This project started in March 2000 and finishes in April 2001. It builds upon a previous EU project - CONNET (CONstruction information service NETwork). This paper provides a description of the final state of the infrastructure, services and business models available through I-SEEC. The countries participating in I-SEEC are Finland, Iceland, Italy, the Netherlands, Slovenia, Spain and the United Kingdom. CONNET provides access to a range of high quality Internet-based services for the construction industry in Europe. It provides both a European entry point to identify resources and national entry points for localised service delivery. The European CONNET entry point provides a range of technology park services as well as industry-specific services. These services include: · Management of security services, including installation and monitoring of security systems · Help desk, providing a point of contact for potential service providers and for problem resolution · Information broker role, enabling transparent access to information in the CONNET services · Technology observatory service, including leading edge, current and best-practice technologies · Provision of user profiles, allowing personalised delivery of updates in areas of interest · Multi-classification support, permitting handling of national systems used across the EC. · Inter-service communication services, allowing all comparable services to be identified and a query to be passed from one service to another service to answer. · Multi-language support, enabling EC languages to be handled correctly and to provide basic translations between them. The services offered by I-SEEC include a Technical Information Centre, Waste Exchange Centre, Electronic News Service, Calculation and Software Centre, Who's Who in Construction, Specialist Equipment Directory and a Best Practice Information service. The CONNET infrastructure and the I-SEEC information services provide the means to promote effective use of information by construction industry professionals in an efficient and cost-effective way. The ability to pass queries from one high quality service to another in a different country is a substantial contribution to the CIB goal of providing information to achieve performance. This paper draws out lessons learned - both technological and practical - in the course of this multi-country initiative to develop a portal for the construction industry. It also invites participation in this open initiative and describes how existing and developing services across the world can be made interoperable within a CONNET (and any Internet portal) environment.

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Full text: content.pdf (416,345 bytes) (available to registered users only)

Series: w78:2001 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.economic (0.056731) class.deployment (0.046867) class.collaboration (0.041581)
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Permission to reproduce these documents have been graciously provided by CSIR Building and Construction Technology. The assistance of the editors, Mr. Gustav Coetzee and Mr. Frances Boshoff, is gratefully appreciated.


Brauns J, Rocens K

Multi-parameter optimization in the design of lining steel shell

Abstract: The thermobuckling problems of inner lining steel shell of thermobattery are solved. By using linear theory of cylindrical shells in case of thermal action only, a critical temperature interval is determined depending on shell geometry and stiffness of basic structure. On the basis of multi- objective optimization design methods for optimum weight and fastening of shell to basic structure are derived.

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

Series: ecce:1997 (browse)
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