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ID 46722
file
creator
Nakajima, T.
subject
Eccentrically braced frame
Link member
Energy dissipation
Shape optimization
Tabu search
NDC
Construction. Civil engineering
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.
description
This work is partially supported by the Kajima Foundation’s Research Grant and a Grant-in-Aid for Scientific Research from JSPS, Japan.
journal title
Journal of Constructional Steel Research
volume
Volume 75
start page
38
end page
44
date of issued
2012-08
publisher
Elsevier Ltd.
issn
0143-974X
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
author
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。
relation url
department
Graduate School of Engineering