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http://dx.doi.org/10.6106/KJCEM.2011.12.6.79

An Index for Measuring the Degree of Completeness of BIM-based Quantity Take-Off  

Lee, Chang-Hee (대우건설 기술연구소)
Kim, Seong-Ah (성균관대학교 건설환경시스템공학과)
Chin, Sang-Yoon (성균관대학교 건축공학과)
Publication Information
Korean Journal of Construction Engineering and Management / v.12, no.6, 2011 , pp. 79-92 More about this Journal
Abstract
Quantity take-off is one of the critical tasks that determine the cost of a construction project, and its result should be accurate and reliable. BIM-based quantity take-off is a very attractive process for practitioners since the quantity take-off can be done automatically in a fast and accurate way. However, the result of BIM-based quantity take-off can be varied depending on how BIM was modeled. As a project progresses, more detailed design information is getting available, and it can be expected that the degree of completeness and accuracy for the BIMbased quantity take-off is going to be improved as well. However, when estimation is performed at each stage of a project life-cycle, there is no way to measure or forecast how accurate of the quantity take-off result from the BIM data given at the current stage. Therefore, this research derived factors that affect the BIM-based quantity takeoff and developed a methodology and framework to measure and forecast the completeness of BIM-based quantity take-off. The measurement framework and index that are proposed by this research was verified and validated for their consistency and feasibility through six pilot projects.
Keywords
BIM(Building Information Modeling); Quantity take-off; Completeness; Index;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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