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學術出版;;Publications

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收集所有交通大學研究人員與學生個人或團體所發表之各項學術著作，涵蓋期刊論文、教師專書、學位論文等項。;;Collections of Publications of NCTU Researchers and Students Like Journal Papers and Thesis.

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    Item type:Item,
    SIM-UTILITY: Model for project ceiling price determination
    (2002-01-01)
    Wang, WC
    ;
    土木工程學系
    ;
    Department of Civil Engineering
    Before considering bids submitted by competing contractors for a public procurement project, the owner should determine a project ceiling price or cost estimate to use as a reference point for evaluating the bids. A high ceiling price conflicts with the owner's interests in minimizing costs. Meanwhile, a low ceiling price can jeopardize the project if all bids exceed the ceiling price. This paper proposes a model for determining a reasonable project ceiling price. The model, called SIM-UTILITY, is based on a utility theory and facilitated by a cost simulation approach. The utility theory is applied to reflect the owner's preferences regarding the determination criteria, while the simulation approach is used to generate more objective project cost data to support execution of the utility theory. The advantages of SIM-UTILITY are proven by its successful application to three construction projects in Taiwan. A computerized SIM-UTILITY is expected to be broadly applicable to public construction projects in Taiwan.
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    Item type:Item,
    Module-based construction schedule administration for public infrastructure agencies
    (2004-01-01)
    Dzeng, RJ
    ;
    Wang, WC
    ;
    Tserng, HP
    ;
    土木工程學系
    ;
    Department of Civil Engineering
    Infrastructure projects such as the construction of expressways are often distributed over different regions and must therefore be divided into several tendering packages. The public agencies that administrate such projects manage project packages that must be integrated. All project packages may involve similar work. However, they are carried out by different contractors each with their own scheduling practices. Standardization provides a foundation for more efficient and effective schedule integration, but cannot easily be enforced without objections from contractors. This paper presents a three-stage standardization implementation framework using modularization. A set of network modules that involve normal, repetitive, cyclic, and merging activities was developed for expressway projects. Two computer systems were developed to help contractors use these modules to create schedules, and to help the owner review schedules submitted by contractors. Experiments and a survey were also carried out to validate the proposed framework, demonstrating a significant amount of time saving and errors reduced by using network modules.
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    Item type:Item,
    Electronic-based procedure for managing unbalanced bids
    (2004-05-01)
    Wang, WC
    ;
    土木工程學系
    ;
    Department of Civil Engineering
    Construction lump sum lowest bid procurement is one of the most prevalent methods of awarding construction contracts. For a lump sum bidding practice in Taiwan, after the lowest bidder is awarded a construction project contract, the contractual unit price for each cost item is taken as the product of the owner's estimated unit price and a discounting ratio equal to the total bid price divided by the owner's project cost estimate. This owner-based approach is inequitable because the bidder is denied the right to allocate the risks associated with the costs of performing the work. In U.S. practice, while the unit prices submitted by the bidder are usually considered as the contractual ones, unbalanced bids may occur. This work presents a bidder-based quantitative procedure, built on an electronic-based bidding process for effectively and efficiently supporting reviewing and adjusting the bidder's proposed unit prices for a lump sum procurement project. The advantages of this procedure include that the unit prices electronically obtained front the owner and all qualified bidders are included in analyses during unit-price evaluation, and that rules for unit-price adjustment along with maintaining the total contractual price are included. The novel procedure has been successfully applied to several construction projects in Taiwan and the results have been greatly appreciated by both governments and contractors.