Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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A Proposal of BIL for Reasonable Cost Estimation of Mechanical Contracts and Construction in Design Phases

설계단계에서 적정 기계설비 공사비 산정을 위한 BIM 정보표현수준(BIL) 개선안

  • Park, Bo Sung (Graduate School of Housing and Urban Planning, Seoul National University of Science and Technology) ;
  • Kim, Sean Hay (School of Architecture, Seoul National University of Science and Technology)
  • 박보성 (서울과학기술대학교 주택도시대학원 건축환경설비공학과) ;
  • 김선혜 (서울과학기술대학교 건축학부)
  • Received : 2017.08.28
  • Accepted : 2017.10.26
  • Published : 2017.12.10
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Abstract

Building information modeling (BIM) technology based on 3D modeling has been applied to the entire domestic construction industry since 2010. It can calculate quantity take-off considering construction productivity at design phase. Based on this, it is possible to improve the reliability of construction cost prediction of design phase in the process of cost estimation. However, Building Information Level (BIL) defined by Ministry of Land, Infrastructure and Transport and Public Procurement Service does not seem to offer doable environment due to the lack of detailed application items. By calculating construction cost that meets Construction Cost Estimate Accuracy by American Association of Cost Engineers (AACE) through quantity take-off and cost estimation based on 3D modeling of BIM technology, a BIL improvement proposal at design phase for Mechanical Contracts and Construction is provided here. Results showed that properties including outline and minimum specification of the main equipment, internal main piping, and internal main duct should be defined from the intermediate design phase to have reliable cost estimation.

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References

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