Optimization of Link Member of Eccentrically Braced Frames for Maximum Energy Dissipation

Journal of Constructional Steel Research 75 巻 38-44 頁 2012-08 発行

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タイトル ( eng )	Optimization of Link Member of Eccentrically Braced Frames for Maximum Energy Dissipation
作成者	Ohsaki M. Nakajima T.
収録物名	Journal of Constructional Steel Research
巻	75
開始ページ	38
終了ページ	44
抄録	An optimization method is presented for design of an eccentrically braced frame (EBF), which is used as a passive control device for seismic design of building frames. The link member between the connections of beams and braces of EBF is reinforced with stiffeners in order to improve its stiffness and plastic deformation capacity. We present a method for optimizing the locations and thicknesses of the stiffeners of the link member. The optimal solutions are found using a heuristic approach called tabu search. The objective function is the plastic dissipated energy before failure. The deformation of the link member under static cyclic loads is simulated using a finite element analysis software package. It is demonstrated in the numerical examples that the dissipated energy can be increased through optimization within small number of analyses.
著者キーワード	Eccentrically braced frame Link member Energy dissipation Shape optimization Tabu search
内容記述	This work is partially supported by the Kajima Foundation’s Research Grant and a Grant-in-Aid for Scientific Research from JSPS, Japan.
NDC分類	建設工学・土木工学 [ 510 ]
言語	英語
資源タイプ	学術雑誌論文
出版者	Elsevier Ltd.
発行日	2012-08
権利情報	Copyright (c) 2012 Elsevier Ltd. This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。
出版タイプ	Author’s Original（十分な品質であるとして、著者から正式な査読に提出される版）
アクセス権	オープンアクセス
収録物識別子	[ISSN] 0143-974X [DOI] 10.1016/j.jcsr.2012.03.008 [DOI] https://doi.org/10.1016/j.jcsr.2012.03.008