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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Smart Structures and Systems, An International Journal Smart Structures and Systems, An International Journal Vol.15 No.3
- 발행연도
- 2015.1
- 수록면
- 847 - 862 (16page)
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초록· 키워드
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Typical base isolated buildings are designed so that the superstructure remains elastic in design-levelearthquakes, though the isolation layer is often quite nonlinear using, e.g., hysteretic elements such as lead-rubberbearings and friction pendulum bearings. Similarly, other well-performing structural control systems keep thestructure within the linear range except during the most extreme of excitations. Design optimization of these isolatorsor other structural control systems requires computationally-expensive response simulations of the (mostly or fully)linear structural system with the nonlinear structural control devices. Standard nonlinear structural analysis algorithmsignore the localized nature of these nonlinearities when computing responses. This paper proposes an approach forthe computationally-efficient optimal design of passive isolators by extending a methodology previously developedby the authors for accelerating the response calculation of mostly linear systems with local features (linear ornonlinear, deterministic or random). The methodology is explained and applied to a numerical example of a baseisolated building with a hysteretic isolation layer. The computational efficiency of the proposed approach is shown tobe significant for this simple problem, and is expected to be even more dramatic for more complex systems.
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참고문헌 (34)
참고문헌 신청
Bhatti, M. A. / 1978 / Optimal design of an earthquake isolation system
Bouc, R. / 1967 / Forced vibration of mechanical systems with hysteresis / Proceedings of the 4th Conference on Nonlinear Oscillation, Prague, Czechoslovakia 315
Bucher, C. / 2009 / Probability-based optimal design of friction-based seismic isolation devices / Struct. Saf 31(6):500~507
Buckle, I.G. / 1990 / Seismic isolation : History, application, and performance—a world view / Earthq. Spectra 6(2):161~201
Constantinou, M.C. / 1983 / Probabilistic optimum base isolation of structures / J. Struct. Eng. -ASCE 109(3):676~689
Bouc, R. / 1967 / Forced vibration of mechanical systems with hysteresis / Proceedings of the 4th Conference on Nonlinear Oscillation, Prague, Czechoslovakia 315
Bucher, C. / 2009 / Probability-based optimal design of friction-based seismic isolation devices / Struct. Saf 31(6):500~507
Buckle, I.G. / 1990 / Seismic isolation : History, application, and performance—a world view / Earthq. Spectra 6(2):161~201
Constantinou, M.C. / 1983 / Probabilistic optimum base isolation of structures / J. Struct. Eng. -ASCE 109(3):676~689
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