文章基本信息

标题：Application of OLAP Information Model to Parametric Cost Estimate and BIM
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作者：Jae Ho Cho ; Bo Sik Son ; Jae Youl Chun 等
期刊名称：Journal of Asian Architecture and Building Engineering
印刷版ISSN：1346-7581
电子版ISSN：1347-2852
出版年度：2011
卷号：10
期号：2
页码：319-326
DOI：10.3130/jaabe.10.319
语种：English
出版社：日本建築学会、大韓建築学会、中国建築学会
摘要：The purpose of this study is to develop a parametric cost estimating model for the early design stage using the OLAP (On-line Analytical Processing; Multi-dimensional Query System) based on quantity case data related to architectural design features. The OLAP system defines architectural design features as parameters that are factors for change in volume of quantity, and these can be used to query quantity information. The parametric estimating model can also evaluate the cost for various alternative designs by utilizing design features as the parameters. The parametric cost model is very highly accurate compared to existing cost estimation methods. The cost estimating process suggested in this study is divided into two stages. The first process involves measuring major quantities based on the design information level. The second process predicts minor quantities that can be used by the OLAP system. In the design development stage, the major quantity items are concrete and forms. The minor quantity items include the ratio of steel (rebar) that must be predicted. In this case study, the steel (rebar) ratio is predicted using the OLAP system in the design development stage.
关键词：OLAP System;Parametric Cost Estimate;Quantity Take-off (Estimation);BIM (Building Information Modeling)