Modeling of the Spatial Structures for Dynamic Analysis and Evaluation of Performance Point Based on Capacity Spectrum Method

동적해석을 위한 대공간 구조물의 모델링 및 능력스펙트럼법에 의한 성능점 산정

Performance based seismic design is a very efficient method in evaluating the seismic capacity of building. In this study, the method estimating the performance point of the spatial structures based on capacity spectrum method(CSM) is proposed. And for efficient evaluation for the performance point of the spatial structures, the algorithm to convert spatial structural system to ESDOF system is proposed. Its efficiency is confirmed by comparing with time history analysis of full model. And dynamic behaviors of spatial structures are examined by using this method. At last, evaluation of structural performance according to variation of stiffness after plastic deformation is carried out.