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Seismic Fragility Assessment for Korean High-Rise Non-Seismic RC Shear Wall Apartment Buildings
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국내 고층 비내진 철근콘크리트 벽식 아파트의 지진취약도 평가

논문 기본 정보

Type
Academic journal
Author
Jeon Seong-Ha (인천대학교 산학협력단) Dong-Hyun Shin (인천대학교 일반대학원 건축학과) Park Ji-Hun (인천대학교)
Journal
Earthquake Engineering Society of Korea 한국지진공학회 논문집 한국지진공학회논문집 제24권 제6호 KCI Accredited Journals
Published
2020.11
Pages
293 - 303 (11page)
DOI
https://doi.org/10.5000/EESK.2020.24.6.293

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Seismic Fragility Assessment for Korean High-Rise Non-Seismic RC Shear Wall Apartment Buildings
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Abstract· Keywords

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Seismic fragility was assessed for non-seismic reinforced concrete shear walls in Korean high-rise apartment buildings in order to implement an earthquake damage prediction system. Seismic hazard was defined with an earthquake scenario, in which ground motion intensity was varied with respect to prescribed seismic center distances given an earthquake magnitude. Ground motion response spectra were computed using Korean ground motion attenuation equations to match accelerograms. Seismic fragility functions were developed using nonlinear static and dynamic analysis for comparison. Differences in seismic fragility between damage state criteria including inter-story drifts and the performance of individual structural members were investigated. The analyzed building had an exceptionally long period for the fundamental mode in the longitudinal direction and corresponding contribution of higher modes because of a prominently insufficient wall quantity in such direction. The results showed that nonlinear static analyses based on a single mode tend to underestimate structural damage. Moreover, detailed assessments of structural members are recommended for seismic fragility assessment of a relatively low performance level such as collapse prevention. On the other hand, inter-story drift is a more appropriate criterion for a relatively high performance level such as immediate occupancy.
#Non-seismic building #Reinforced concrete shear wall #Nonlinear dynamic analysis #Seismic fragility

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References (39)

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FEMA / 1999 / Hazus—MH 2.1: Technical manual. Multi-hazard loss estimation methodology, earthquake model google schola European Union Commission / 2013 / Guidelines for deriving seismic fragility functions of elements at risk: Buildings, lifelines, transportation networks and critical facilities google schola Architectural Institute of Korea / 2005 / Korean Building Code 2005 google schola FEMA / 2000 / Prestandard and commentary for the seismic rehabilitation of buildings google schola 천영수 / 2013 / 완화된 단부 배근상세를 갖는 특수전단벽 구조시스템의 내진성능평가 / 콘크리트학회 논문집 25(3):271~281 dbpia

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