한국공간구조학회논문집 (Journal of Korean Association for Spatial Structures)

  • 제23권2호
  • /
  • Pages.79-90
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  • 2023
  • /
  • 1598-4095(pISSN)
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  • 2287-7401(eISSN)
한국공간구조학회 (Korean Association for Spatial Structures)
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연속지진에 대한 지진 취약 철근콘크리트 건축물의 FRP 재킷 보수 전략 연구

Repair Scheme of FRP Column Jacketing System for Seismically-vulnerable RC Buildings under Successive Earthquakes

  • 김수빈 (경상국립대학교 대학원 건축공학과) ;
  • 김혜원 (국립재난안전연구원, 지진방재센터) ;
  • 박재은 (국립재난안전연구원, 지진방재센터) ;
  • 신지욱 (경상국립대학교 건축공학과)
  • Kim, Subin (Department of Architectural Engineering, Gyeongsang National University) ;
  • Kim, Haewon (Earthquake Hazards Reduction Center, National Disaster Management Research Institute) ;
  • Park, Jaeeun (Earthquake Hazards Reduction Center, National Disaster Management Research Institute) ;
  • Shin, Jiuk (Department of Architectural Engineering, Gyeongsang National University)
  • 투고 : 2022.10.17
  • 심사 : 2022.12.15
  • 발행 : 2023.06.15
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초록

Existing reinforced concrete (RC) frame buildings have seismic vulnerabilities because of seismically deficient details. In particular, since cumulative damage caused by successive earthquakes causes serious damage, repair/retrofit rehabilitation studies for successive earthquakes are needed. This study investigates the repair effect of fiber-reinforced polymer jacketing system for the seismically-vulnerable building structures under successive earthquakes. The repair modeling method developed and validated from the previous study was implemented to the building models. Additionally, the main parameters of the FRP jacketing system were selected as the number of FRP layers associated with the confinement effects and the installation location. To define the repair effects of the FRP jacketing system with the main parameters, this study conducted nonlinear time-history analyses for the building structural models with the various repairing scenarios. Based on this investigation, the repair effects of the damaged building structures were significantly affected by the damage levels induced from the mainshocks regardless of the retrofit scenarios.

키워드

과제정보

이 논문은 행정안전부 국립재난안전연구원 재난안전 공동연구 기술개발사업의 지원(2022-MOIS63-003) 및 정부(과학기술정보통신부)의 재원으로 한국연구재단의 지원(NRF-2021R1F1A1059976)을 받아 수행된 연구임.

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