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Seismic Capacity Evaluation of Existing Structures Incorporating Damage Assessment  

Song, Jong Keol (강원대학교 토목공학과)
Yi, Jin Hak (한국과학기술원 스마트사회기반시설연구센터)
Lee, Dong Guen (성균관대학교 건축공학과)
Publication Information
Journal of Korean Society of Steel Construction / v.16, no.5, 2004 , pp. 543-553 More about this Journal
Abstract
This paper covered two related subjects: the use of the inverse modal perturbation technique to assess structural damage in existing structures; and the use of a seismic capacity evaluation to assess damaged structures, with the aid of the identified structural damage. The substructural identification and the Tikhonov regularization algorithm were incorporated for efficient damage assessment of complex and large frame structures. The seismic capacity of a damaged structure was evaluated by comparing the structure's seismic responses and seismic damage indices. The effectiveness of the proposed method has been investigated through the numerical simulation study for a twenty-story frame structure with undamaged and damaged cases, and also different earthquake excitations.
Keywords
structural damage assessment; aseismic capacity; rotational ductility demand; seismic damage index;
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