한국지진공학회:학술대회논문집 (Proceedings of the Earthquake Engineering Society of Korea Conference)
- 한국지진공학회 2006년도 학술발표회 논문집
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- Pages.589-596
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- 2006
수정 모드해석방법을 이용한 비대칭 벽식 구조물의 내진성능평가
Seismic Assessment of Plan-irregular Wall Structures using Adaptive Modal Analysis
초록
Torsional behavior of eccentric structures under seismic loading may cause stress and/or strain concentration, which result in the failure of the structures in an unexpected manner. This study propose how to assess the seismic capacity of plan-irregular RC wall structures. The seismic capacities ate expressed in terms of lateral displacement capacity of each wall. The seismic demands for displacement are assessed by so called displacement-based design approach. Those seismic capacity and demands are combined D-R coordinate, which is made up of lateral displacement and rotation angle. To expand these concepts to the inelastic region the adaptive modal analysis method is used. In addition, the failure mechanisms including torsional failure are defined on D-R coordinate. Finally, seismic assessments of two 3-story plan-irregular wall structures ate presented.
키워드