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Development of Capacity Spectrum Method for Shear Building to Estimate the Maximum Story Drift  

Kim, Sun-Pil (현대건설기술개발원 토목설계팀)
Kim, Doo-Kie (국립군산대학교 토목환경공학부)
Kwak, Hyo-Gyoung (한국과학기술원 건설 및 환경공학과)
Ko, Sung-Hyuk (국립군산대학교 토목환경공학부)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.20, no.3, 2007 , pp. 255-264 More about this Journal
Abstract
In the current domestic and overseas standards concerning seismic design, especially on the capacity & demand spectra in the multi-story building, failure is caused more by story drift than by displacement; and the existing capacity spectrum method (CSM) does not make a close estimate of story drift because response is derived using displacement. Therefore, this paper proposes an improved CSM to estimate story drift and its direct effect on the collapse of structures, yet still maintaining the same advantage and convenience of the existing CSM about a most basic model of multi-story building: shear building. To establish its reliability, the proposed method is applied to an example model and results are then compared with those obtained through nonlinear time-history analysis.
Keywords
capacity spectrum method (CSM); story drift; constant-ductility response spectrum; ductility factor; shear building;
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