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학술저널
저자정보
Pramanik, Debdulal (Department of Aerospace Engineering and Applied Mechanics, Indian Institute of Engineering Science and Technology [erstwhile Bengal Engineering and Science University]) Banerjee, Abhik Kumar (Department of Aerospace Engineering and Applied Mechanics, Indian Institute of Engineering Science and Technology [erstwhile Bengal Engineering and Science University]) Roy, Rana (Department of Aerospace Engineering and Applied Mechanics, Indian Institute of Engineering Science and Technology [erstwhile Bengal Engineering and Science University])
저널정보
테크노프레스 Coupled systems mechanics Coupled systems mechanics 제5권 제2호
발행연도
2016.1
수록면
101 - 126 (26page)

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Seismic structural fragility constitutes an important step for performance based seismic design. Lateral load-resisting structural members are often analyzed under one component base excitation, while the effect of bi-directional shaking is accounted per simplified rules. Fragility curves are constructed herein under real bi-directional excitation by a simple extension of the conventional Incremental Dynamic Analysis (IDA) under uni-directional shaking. Simple SODF systems, parametrically adjusted to different periods, are examined under a set of near-fault and far-fault excitations. Consideration of bi-directional interaction appears important for stiff systems. Further, the study indicates that the peak ground accelertaion, velocity and displacement (PGA, PGV and PGD) of accelerogram are relatively stable and efficient intensity measures for short, medium and long period systems respectively. '30%' combination rule seems to reasonably predict the fragility under bi-directional shaking at least for first mode dominated systems dealt herein up to a limit state of damage control.

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