| Title |
A Proposal of BIL for Reasonable Cost Estimation of Mechanical Contracts and Construction in Design Phases |
| Authors |
Bo Sung Park ; Sean Hay Kim |
| DOI |
https://doi.org/10.6110/KJACR.2017.29.12.663 |
| Keywords |
기계설비공사 ; 건축정보모델 ; 정보표현수준 ; 공사비산정 Mechanical contracts and construction ; Building information modeling(BIM) ; Building information level(BIL) ; Cost estimation |
| 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. |