A Study for Automated Division of Composite Walls for Quantity Take-off in Construction Document Phase
Received 20 March 2015; received in revised form 7 May 2015; accepted 12 May 2015ABSTRACTWhen Building Information Modeling (BIM) was introduced at the early stage, it was only uti-lized as a three-dimensional visualization tool. Nowadays, however, BIM is being studied forincreasing design productivity and managing enormous information on building life cycle. Oneof the representative research is developing ‘common prototype BIM libraries’. BIM data madeof common prototype libraries should be utilized in various ways, quantity takeoff, code check-ing, energy analysis and so on. However, common prototype BIM libraries are not enough toestimate accurate cost. For example, composite wall libraries should be divided into several sin-gle objects, wall structure and finishes, for the quantity takeoff and construction cost calcula-tion. In this paper, we are suggesting an automated division algorithm of composite wall anddeveloping a system prototype for it. This study is expected to reduce extra modeling work andcontribute to fast and accurate cost calculation in the construction.Key Words:Automated Division, BIM, BIM Library, BIM Quantity Take-off, Common PrototypeLibrary, Composite Wall