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A study on the Composition of the Production Rates System to Prepare Standards for Calculating the Construction Cost of PC Structure Apartments Based on Off-Site Construction (OSC)

OSC 기반 PC구조 공동주택 공사비 산정기준 마련을 위한 품셈 체계 구성에 관한 연구

  • Lee, Hansoo (Standard Construction Cost Research Institute, Hyeonin PCM) ;
  • Lee, Chiho (Standard Construction Cost Research Institute, Hyeonin PCM) ;
  • Lee, Jeongwook (Standard Construction Cost Research Institute, Hyeonin PCM) ;
  • Noh, Hyunseok (Department of Civil Engineering, Korea University)
  • 이한수 ((주)현인피씨엠 표준건설원가연구소) ;
  • 이치호 ((주)현인피씨엠 표준건설원가연구소) ;
  • 이정욱 ((주)현인피씨엠 표준건설원가연구소) ;
  • 노현석 ((주)현인피씨엠 표준건설원가연구소)
  • Received : 2021.10.07
  • Accepted : 2021.10.18
  • Published : 2021.11.30

Abstract

The PC structure based on the OSC (Off-Site Construction) is mentioned as a representative method of innovation in the construction industry that converts the existing construction environment from site-centered to factory production-transportation-site assembly. However, recent research on PC method has focused on improving the functions of subsidiary materials and improving the production system to increase productivity and institutional / policy R&D that can be universally applied to the life-cycle stage of ordering / design /construction is insufficient. In particular, the absence of standardized cost calculation standards makes it difficult to calculate and verify of objectified appropriate construction cost. So which is an obstacle to the activation of the PC method. In this study, the standards for construction costs of domestic and foreign PC method were surveyed and similar Construction Standard Production Rates were analyzed to confirm the product structure suitable for PC method. Subsequently, the construction procedures and input resources for each PC subsidiary materials were identified through on-site surveys to derive component for subsidiary materials, and the factors of change in the product according to the construction characteristics(height, weight of subsidiary material) were verified. As a result the standard product calculation system suitable for the site installation of the PC method for apartment was presented.

OSC (Off-Site Construction)기반의 PC구조는 기존의 시공 환경을 현장중심에서 공장생산-운반-현장조립의 단계로 전환하는 건설산업 혁신의 대표적 방안으로 거론된다. 그러나, 최근까지의 PC공법 관련 연구는 개별 부재의 기능개선과 생산성 증대를 위한 생산 체계 개선을 중심으로 이루어지고 있으며, 발주/설계/시공의 생애주기 단계에 보편적으로 적용할 수 있는 제도적/정책적 연구 개발은 부족한 실정이다. 특히, 표준화 된 비용산출 기준의 부재는 객관화된 적정공사비의 산출과 검증을 어렵게하여 PC공법 활성화에 장애가 되고 있다. 본 연구에서는 국내외 PC공법 공사비 기준을 조사하고 유사 표준품셈 항목을 분석하여 PC공법에 적합한 품셈 구조를 확인하였다. 이후, 현장조사를 통해 PC부재별 시공절차와 투입자원 을 확인하여 부재별 품 구성요소를 도출하였으며, 시공특성(높이, 부재중량)에 따른 품의 변화요소를 검증하여 공동주택 PC공법 현장설치에 적합한 표준품셈 체계를 제시하였다.

Keywords

Acknowledgement

본 연구는 국토교통부/국토교통과학기술진흥원의 지원으로 수행되었음(과제번호 21ORPS-B158109-02).

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