• Title/Summary/Keyword: 건축공법

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QFD-Based Integrated Model of Dismantling Method Selection and FMEA Risk Assessment for Work Stage (QFD 기반의 해체공사 공법선정과 FMEA 위험성평가 통합 모델)

  • Lee, Hyung-Yong;Cho, Jae-Ho;Son, Bo-Sik;Chae, Myung-Jin;Kim, Hyun-Soo;Chun, Jae-Youl
    • Journal of the Korea Institute of Building Construction
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    • v.21 no.6
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    • pp.629-640
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    • 2021
  • According to statistics from the Ministry of Land, Infrastructure and Transport in 2018, approximately 37% of residential buildings in Korea need to be reconstructed. Due to the rapid growth of the demolition industry, many side effects such as environmental destruction and safety accidents are becoming a problem in the demolition of existing buildings. This study proposes a decision-making process for selecting the most suitable dismantling method for field application by comprehensively considering safety, economic feasibility, and environmental characteristics. In particular, field applicability is evaluated by evaluating risk factors for the selected method. To this end, this study proposes the TOPSIS method for the selection of the dismantling method using the QFD development concept, and the FMEA method as a continuous development process of the selected method.

Seismic Retrofitting of Existing Reinforced Concrete Columns Using Binding Column Method (외부부착형 BCM공법으로 보강된 철근콘크리트 기둥의 내진보강)

  • Hur, Moo-Won;Park, Tae-Won;Lee, Sang-Hyun;Park, Hyun-Soo
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.26 no.5
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    • pp.119-126
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    • 2022
  • This study proposed a BCM(Binding Column Method) that can reinforce the insufficient seismic force of piloti buildings that are not designed for seismic resistance. In addition, 4 reinforcement specimens and 1 reference specimen were manufactured for the proposed seismic reinforcement method. The effect of improving seismic performance before and after reinforcement was examined through repeated loading tests. As a result of experiment, seismic reinforcement specimen with BCM system showed hysteretic characteristics of a large ellipse with great energy dissipation ability and increased strength and stiffness, while reference specimen showed rapid reduction in strength and brittle shear failure column. In addition, it can be seen that the reinforcing effect is improved as the gap is narrow, the torque is large, and the thickness of the L-shaped steel sheet is thicker. The SC4 specimen showed the best seismic performance reinforcement effect.