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현장 시공실태에 따른 철근공사 공사비산정기준 개선 연구
송태석(Tae-Seok Song),안방율(Bang-Yul Ahn),오재훈(Jae-Hoon Oh),이한수(Han-Soo Lee) 한국산학기술학회 2022 한국산학기술학회논문지 Vol.23 No.11
철근콘크리트공사 공법은 건축물, 교량, 터널 등의 구조물의 골조를 시공하는데 가장 보편적으로 활용되고 있는 공법이다. 특히 철근공사는 건설공사 공사비 비중이 가장 큰 공종 중 하나로 철근 공사비의 변동에 따라 전체 건설 공사비가 영향을 받고 있어 적정한 건설 공사비산정을 위해서는 합리적인 공사비 산정기준이 필요하다. 본 연구에서는 현장 실태조사 및 내역서 분석을 통해 적정한 철근 공사비를 확보할 수 있는 기준을 제시하고 그 영향성을 분석해보았다. 먼저 기존 공사비 산정기준의 실태와 실제 현장 적용실태를 비교 분석하여 기존 철근 공사비 산정기준의 문제점을 도출하였다. 총 29개의 현장을 대상으로 구조물의 종류, 현장 여건, 철근 규격, 공장가공과 현장가공 등에 따른 가공 및 조립의 적용실태 확인 및 생산성 분석을 수행하였다. 본 연구를 통해 현장시공 실태가 반영된 합리적인 공사비 산정기준이 제시되었으며, 철근콘크리트공사 적정공사비 확보에 일조할 것으로 기대된다. The reinforced concrete construction method is the most commonly used method for constructing structures, such as buildings, bridges, or tunnels. In particular, reinforcing bar work form the largest part of the cost of construction work. Because the overall construction cost is affected by the fluctuations in the cost of reinforcing bar work, it is necessary to develop reasonable standards. This paper presents the standards for calculating the cost of reinforcing bar work. The effects were analyzed by investigating the status at the site and analyzing written details. This study derived problems in the existing standards for calculating the cost of reinforcing bar work by analyzing existing standards for estimating construction costs and how they are applied at the site. This research carried out field investigations on 29 construction sites and analyzed the construction productivity of rebar processing and assembly according to the structures, site conditions, rebar specifications, or factory or site processing. Based on the field investigation results, this research established a revision to the standards for calculating the cost of reinforcing bar work reasonably. It is expected that this will contribute to estimating the cost of reinforced concrete construction appropriately.
송태석 ( Song Tae-seok ),안방율 ( Ahn Bang-yul ) 한국건축시공학회 2022 한국건축시공학회 학술발표대회 논문집 Vol.22 No.1
Reinforced concrete is the most widely used construction method for constructing structures. There is a lot of process for constructing Reinforced concrete structures such as installing rebars, molds and support, mixing and placing concrete, and curing. So the reinforced concrete work accounts for a large part of the total construction cost for constructing structure. For this reason a reasonable standard for estimating the cost of reinforced concrete construction has to be established and it will be possible to secure appropriate costs for construction work. In this study, we analyze the revision factors of the standard for estimating the cost of reinforced concrete construction and present them to secure reasonable construction costs.
오재훈 ( Oh Jar-hoon ),안방율 ( Ahn Bang-yul ) 한국건축시공학회 2022 한국건축시공학회 학술발표대회 논문집 Vol.22 No.1
Pruning is the most important work for the growth and aesthetics of street trees. It is also the most actively conducted maintenance work. However, the specifications, application methods, and cost criteria for pruning have not been systematically established. This has recently caused a lot of confusion in the practice of street tree pruning, such as indiscriminate pruning and lack of construction costs. Therefore, this study clarified the contents of work according to the form of pruning. It added 'aesthetic pruning,' which takes into account design. In addition, It revised equipment not in conformity with the law and excluded personnel necessary for on-site traffic control so that they could be reflected separately. As a result, this study is expected to contribute a lot to securing appropriate construction costs for maintaining street trees.