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Kanoglu A

Integrated design of an automation system to solve cost estimation problems in design phase

Abstract: "Architectural offices have a complex nature due to the large number of participants that are involved in the design process although they are considered simple organizations. One of the basic project-based problems that architects encounter in design process is to keep the construction costs under the limit given by the customers of the projects and to enlighten the customers about the impacts of their decisions on building costs. Calculation of the impacts of alternative decisions on building costs must be a continuous activity during the design stage and the models developed for the architectural practices should also provide this kind of tools for the architects. Although some of the CAD based software provide this facility, they have limitations. As for the commercial software packages for architectural practices, they were designed mostly in an accounting oriented approach and do not provide cost estimation facilities. This paper presents the integrated design of a computer based office automation system, ASAP (Automation System for Architectural Practices), a model for architectural offices that was developed by considering the lacks of currently available office automation models and the cost estimation system (ASAP-CE) that can be integrated or works independently to expose the estimated costs of alternative solutions for building design."

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Full text: content.pdf (2,369,698 bytes) (available to registered users only)

Series: w78:2000 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.environment (0.046029) class.impact (0.044823) class.economic (0.033568)
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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


Khalfan M M A, Anumba C J

Implementation of concurrent engineering in construction - readiness assessment

Abstract: "There is growing interest in the adoption of Concurrent Engineering (CE) in the Construction Industry. CE has the potential to make construction projects less fragmented, improve project quality, reduce project duration and reduce total project cost. Also, the urgent need to improve the performance of construction can be achieved during the design process by concurrently considering key aspects of the construction project’s downstream phases. It is evident that by adopting CE, the software and manufacturing industries have significantly improved their business processes. While Concurrent engineering (CE) is gaining acceptance, some implementation efforts have not realised their full potential for reducing costs, reducing time, and increasing efficiency, effectiveness and performance for product development efforts. This is due in part to weak planning to support the implementation. One method that has been used successfully to improve CE implementation planning is to conduct an organisation readiness assessment prior to the introduction of CE. This helps to investigate the extent to which the organisation is ready to adopt Concurrent Engineering. Therefore, in order to facilitate the adoption of the CE concept in construction, it is necessary to assess the extent to which firms in the construction industry are ready for the adoption of CE. This can be done by carrying out Readiness Assessment for any construction organisation before the adoption of CE. Readiness assessment tools and models have been developed and used in other industries such as the manufacturing and software engineering industries. This paper discusses Concurrent Engineering and its application to construction. It includes a comparative review of existing readiness assessment tools and models that have been successfully used in the manufacturing and IT sectors. It argues that readiness assessment of the construction supply chain is a necessity for the implementation of CE in construction and assesses the applicability of existing tools and models to the construction industry. A new readiness assessment model for the construction industry called “CERAMConstruct” is presented, with details of the development of the model and its associated questionnaire, assessment methodology, and case studies. The paper concludes that the CERAMConstruct model offers useful benefits in the implementation of CE in construction. Aspects of further work to be done are also outlined."

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Full text: content.pdf (385,123 bytes) (available to registered users only)

Series: w78:2000 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.economic (0.012585) class.strategies (0.009727) class.commerce (0.008958)
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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


Lakka A, Sulankivi K, Luedke M

Measuring the benefits of CE-environment in multi-partner projects

Abstract: This paper deals with the measuring the impact of the usage of concurrent engineering environmentin the multi-partner project. The paper is grounded in the research project ProCE: ProjectManagement and Organization in the CE-environment. The project is attempting to determine thebenefits derived from using the concurrent engineering environment in construction design andproject management routines. In this context, the concurrent engineering environment is defined asa conceptual arena created by any or all technologies enabling collaborative efforts in the buildingprocess.This paper presents the main findings of the state of the art study, where the existing approaches toevaluate information technology IT within multi-partner projects where reviewed from theviewpoint of project management and organization in the construction industry. It also presents theframework for measuring the benefits of using the CE-environment.

Keywords: e-collaboration, groupware, measuring, benefit, Internet, construction, concurrentengineering

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Full text: content.pdf (163,925 bytes) (available to registered users only)

Series: ecce:2001 (browse)
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Yabuki N, Shitani T

An IFC-based product model for RC or PC slab bridges

Abstract: The authors developed a product model for reinforced concrete (RC) or prestressed concrete (PC) slab bridges on the basis of the Industry Foundation Classes (IFC) in order to enable interoperability of various application systems throughout the lifecycle of structures. Based on the analysis of the characteristics of RC or PC slab bridges, new classes for slabs, prestressing strands, sheaths, voids, rebars, and anchoring devices were defined. A feature of the model is that it clearly represents the relationship that the concrete slab contains elements such as rebars, prestressing strands, and voids by representing the concrete slab as a spatial structure element by B-rep. The ifcXML was selected to implement the developed product model after comparing with other XMLs. The authors implemented the schema of the product model and an instance of a prestressed concrete hollow slab bridge using ifcXML. To check the validity and practicality of the model, the product model was integrated with three application systems, by developing converter programs. The application test case shows improved efficiency and validity of the system.

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Full text: content.pdf (392,685 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.


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