• Title/Summary/Keyword: half-PC slab method

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Benefit·Cost Analysis of Combine Method Using Hollow Precast Concrete Column (중공 PC기둥 복합공법의 편익-비용 분석)

  • Kim, Jae-Yeob;Park, Byeong-Hun;Lee, Ung-Kyun
    • Journal of the Korea Institute of Building Construction
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    • v.16 no.5
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    • pp.429-436
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    • 2016
  • Because of the shortage of construction workers due to The rising labor costs and an aging labor force, construction time has been extended. As a solution, The construction time of high-rise buildings can be reduced by adopting precast concrete construction methods. Most relevant studies have focused on the development and structural analysis of such methods and not on their construction management. Therefore, this study focused on the construction management of the hollow precast concrete column (HPC) method. The objective of this study was to evaluate the performance of HPC formulations through the analytic hierarchy process and benefit-cost analysis. After a gap analysis of the available literature and expert interviews, the evaluation criteria were selected. A questionnaire survey was administered to professionals with ample experience in precast concrete construction for the pair-wise evaluation of the benefit and costs of the HPC method. The results show that the benefits of the HPC method outweighed its costs. Therefore, the HPC method is a suitable substitute for the half-slab method.