Optimization of Link Member of Eccentrically Braced Frames for Maximum Energy Dissipation
Journal of Constructional Steel Research Volume 75
Page 38-44
published_at 2012-08
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| File | |
| Title ( eng ) |
Optimization of Link Member of Eccentrically Braced Frames for Maximum Energy Dissipation
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| Creator |
Nakajima T.
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| Source Title |
Journal of Constructional Steel Research
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| Volume | 75 |
| Start Page | 38 |
| End Page | 44 |
| Abstract |
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.
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| Keywords |
Eccentrically braced frame
Link member
Energy dissipation
Shape optimization
Tabu search
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| Descriptions |
This work is partially supported by the Kajima Foundation’s Research Grant and a Grant-in-Aid for Scientific Research from JSPS, Japan.
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| NDC |
Construction. Civil engineering [ 510 ]
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| Language |
eng
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| Resource Type | journal article |
| Publisher |
Elsevier Ltd.
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| Date of Issued | 2012-08 |
| Rights |
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。
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| Publish Type | Author’s Original |
| Access Rights | open access |
| Source Identifier |
[ISSN] 0143-974X
[DOI] 10.1016/j.jcsr.2012.03.008
[DOI] https://doi.org/10.1016/j.jcsr.2012.03.008
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