Journal of KIBIM (한국BIM학회 논문집)

Korean Institute of Building Information Modeling (한국BIM학회)
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A Study on the Productivity Analysis of 3D BIM-based Fabrication Documents Extraction

3D BIM 기반 철골 제작도면 산출 생산성 분석

  • 함남혁 (한양사이버대학교 건축도시건설공학부 디지털건축도시공학과) ;
  • 양정혜 (한양사이버대학교 건축도시건설공학부 디지털건축도시공학과) ;
  • 여옥경 (한양사이버대학교 건축도시건설공학부 디지털건축도시공학과)
  • Received : 2019.07.26
  • Accepted : 2019.09.27
  • Published : 2019.09.30
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Abstract

Extraction of fabrication documents is very important because it provides information related to tasks of fabrication and construction. Therefore, in the case of a prefabricated member such as a steel structure, it is necessary to improve the productivity of fabrication documents through 3D BIM. However, research and evidence data on direct comparison analysis of 3D BIM-based documents extraction versus 2D CAD-based documents extraction are hard to find. Thus, this study focuses on productivity analysis of 3D BIM based fabrication documents extraction. In this study, the productivity data of fabrication documents extraction for module construction of EPC project was analyzed. For the productivity analysis, a case study on the fabrication documents of Module A (1,965 sheets) and Module B (1,216 sheets) was conducted. Fabrication documents for each module include general arrangement drawing, assembly drawing, single part drawing and single plate drawing. Comparison of 2D CAD based fabrication documents extraction and 3D BIM based fabrication documents extraction, the productivity for the entire work was improved from 17 hours to 16 hours for Module A and 12 hours to 7 hours for Module B. Especially, the productivity of the assembly drawings, which occupies a large part of the fabrication documents, was improved by about 48.75% from the total time required from 281 hours to 144 hours.

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