한국지진공학회:학술대회논문집 (Proceedings of the Earthquake Engineering Society of Korea Conference)
- 한국지진공학회 2001년도 추계 학술발표회 논문집 Proceedings of EESK Conference-Fall 2001
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- Pages.200-207
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- 2001
복합모드감쇠를 고려한 구조물의 지진취약도분석
Seismic Fragility Analysis of the Structure Considering Composite Modal Damping
초록
This paper introduces a methodology of seismic fragility analysis and discusses the basic input variables, focusing on the conservatism and variability of reference response spectrum. The procedures to consider the composite modal damping in the seismic fragility analysis is presented and its effects on the seismic capacity of structure is evaluated through an example analysis of the nuclear power plant structure which has typical composite modal damping characteristics. Two seismic fragility analyses were performed to obtain the seismic capacities which evaluated by considering the composite modal damping and the single damping characteristics. The results showed that the seismic fragility analysis without considering the different values of composite modal damping may considerably overestimate the seismic capacity of coupled structures.
키워드