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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Structural Engineering and Mechanics, An Int'l Journal Structural Engineering and Mechanics, An Int'l Journal Vol.71 No.1
- 발행연도
- 2019.1
- 수록면
- 45 - 56 (12page)
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초록· 키워드
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A modified mechanical model of pre-pressed spring self-centering energy dissipation (PS-SCED) brace is proposed, and the hysteresis band is distinguished by the indication of relevant state variables. The MDOF frame system equipped with the braces is formulated in an incremental form of linear acceleration method. A multi-objective genetic algorithm (GA) based brace parameter optimization method is developed to obtain an optimal solution from the primary design scheme. Parameter sensitivities derived by the direct differentiation method are used to modify the change rate of parameters in the GA operator. A case study is conducted on a steel braced frame to illustrate the effect of brace parameters on node displacements, and validate the feasibility of the modified mechanical model. The optimization results and computational process information are compared among three cases of different strategies of parameter change as well. The accuracy is also verified by the calculation results of finite element model. This work can help the applications of PS-SCED brace optimization related to parameter sensitivity, and fulfill the systematic design procedure of PS-SCED brace-structure system with completed and prospective consequences.
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참고문헌 (34)
참고문헌 신청
Reza Abbasnia / 2014 / Reliability-based design optimization of structural systems using a hybrid genetic algorithm / Structural Engineering and Mechanics, An Int＇l Journal 52(6):1099~1120
Chou, C. C. / 2014 / Development and seismic tests of a cross-anchored dual-core self-centering brace using steel tendons as tensioning elements / Proceedings of the 10th National Conference on Earthquake Engineering
Tayfun Dede / 2013 / Structural optimization with teaching-learning-based optimization algorithm / Structural Engineering and Mechanics, An Int＇l Journal 47(4):495~511
Degertekin, S. O. / 2010 / Harmony search algorithm for minimum cost design of steel frames with semi-rigid connections and column bases / Struct. Multidiscip. O 42(5):755~768
Hossein Ebrahimian / 2015 / Preliminary ranking of alternative scalar and vector intensity measures of ground shaking / Bulletin of Earthquake Engineering 13(10):2805~2840
Chou, C. C. / 2014 / Development and seismic tests of a cross-anchored dual-core self-centering brace using steel tendons as tensioning elements / Proceedings of the 10th National Conference on Earthquake Engineering
Tayfun Dede / 2013 / Structural optimization with teaching-learning-based optimization algorithm / Structural Engineering and Mechanics, An Int＇l Journal 47(4):495~511
Degertekin, S. O. / 2010 / Harmony search algorithm for minimum cost design of steel frames with semi-rigid connections and column bases / Struct. Multidiscip. O 42(5):755~768
Hossein Ebrahimian / 2015 / Preliminary ranking of alternative scalar and vector intensity measures of ground shaking / Bulletin of Earthquake Engineering 13(10):2805~2840
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