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Seismic Fragility Assessment of Ordinary RC Shear Walls Designed with a Nonlinear Dynamic Analysis

비선형 동적해석에 의해 내진설계된 철근콘크리트 보통 전단벽의 지진취약도 분석

  • Jeon, Seong-Ha (Department of Architecture, Graduate School, Incheon National University) ;
  • Park, Ji-Hun (Division of Architecture and Urban Design, Incheon National University)
  • 전성하 (인천대학교 대학원 건축학과) ;
  • 박지훈 (인천대학교 도시건축학부)
  • Received : 2019.01.28
  • Accepted : 2019.04.03
  • Published : 2019.05.01

Abstract

Seismic performance of ordinary reinforced concrete shear wall systems commonly used in high-rise residential buildings is evaluated. Three types of shear walls exceeding 60m in height are designed by performance-based seismic design. Then, incremental dynamic analysis is performed collapse probability is assessed in accordance with the procedure of FEMA P695. As a result, story drift, plastic rotation, and compressive strain are observed to be major failure modes, but shear failure occur little. Collapse probability and collapse margin ratio of performance groups do not meet requirement of FEMA P695. It is observed that critical wall elements fail due to excessive compressive strain. Therefore, the compressive strain of concrete at the boundary area of the shear wall needs to be evaluated with more conservative acceptance criteria.

Keywords

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