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역량스펙트럼 방법과 수정변위계수법을 이용한 다경간 교량의 내진성능 평가
남왕현(Nam Wang Hyun),송종걸(Song Jong Keal),정영화(Chung Yeong Hwa) 강원대학교 산업기술연구소 2006 産業技術硏究 Vol.26 No.1
Capacity spectrum method(CSM) of ATC-40(1996) and displacement coefficient method(DCM)of FEMA-273(1997) are applied to evaluate the seismic performance of bridges, In this study, equivalent response is obtained from nonlinear static analysis for the 3spans continues bridge and nonlinear maximum displacement response is calculated using CSM and DCM. Nonlinear maximum displacement response of DCM is larger than this of CSM. It is method that DCM can evaluate target displacement and ductility of structural to be easy and simple, but tend to overestimate the maximum displacement response. Therefore, this method is mainly used at preparation design level to evaluate the structural response, It is not desirable to evaluate the seismic performance using DCM.