Journal of the Korea Concrete Institute (콘크리트학회논문집)

Korea Concrete Institute (한국콘크리트학회)
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Development of Performance-Based Seismic Design of RC Column Using FRP Jacket by Displacement Coefficient Method

FRP 보강 철근콘크리트기둥의 변위계수법에 의한 내진성능설계기법 개발

  • Cho, Chang-Geun (BK21, School of Architecture and Civil Eng., Kyungrook National University) ;
  • Ha, Gee-Joo (Dept. of Architectural Engineering, Kyungil University) ;
  • Bae, Su-Ho (Dept. of Civil Engineering, Andong rational University)
  • 조창근 (경북대학교 건설공학부, BK21 미래지향 글로벌 방재 전문인력 양성 사업단) ;
  • 하기주 (경일대학교 건축학부) ;
  • 배수호 (안동대학교 토목공학과)
  • Published : 2007.08.31
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Abstract

In the current research, the scheme of displacement-based seismic design for seismic retrofit of concrete structures using FRP composite materials has been proposed. An algorithm of the nonlinear flexural analysis of FRP composite concrete members has been presented under multiaxial constitutive laws of concrete and composite materials. An algorithm for performance-based seismic retrofit design of reinforced concrete columns with FRP jacket has been newly introduced to modify the displacement coefficient method used in reinforced concrete structures. From applications of retrofit design, the method are easy to apply in the practice of retrofit design and give practical prediction of nonlinear seismic performance evaluation of retrofitted structures.

본 연구에서는, FRP 피복 보강에 의한 철근콘크리트 구조물의 변위-기반 내진성능설계 기법을 제시하였다. FRP 피복 콘크리트 부재에 대한 비선형 휨 해석을 위한 정밀 예측을 위하여 콘크리트 및 FRP 복합재료의 다축 구성관계를 고려한 해석 모델을 제시하였다. FRP 피복 보강에 의한 내진성능설계를 위하여 기존 철근콘크리트 구조물에 적용하던 변위계수법에 의한 방법을 개선하여 성능 개선 부재의 FRP 보강 두께 결정을 위한 알고리즘을 제시하였다. 대상부재의 성능 개선 설계 적용을 통하여, 본 연구에서 제시된 방법은 성능 개선 설계에 적용하는데 쉽고 용이할 뿐만 아니라 성능 개선된 부재에 대한 비선형 지진 성능 거동을 추정하는데도 실용적인 것으로 평가된다.

Keywords

References

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