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Online ISSN : 1884-0329
Print ISSN : 1880-9928
ISSN-L : 1880-9928
Evaluation of Equivalent Bracing Rigidity on Elasto-Plastic Buckling Load for H-Shaped Compression Members with Eccentric Braces
Yuki YOSHINOYoshihiro KIMURA
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2013 Volume 20 Issue 79 Pages 79_41-79_51

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Abstract

Our previous papers have evaluated the effect of the eccentric braces to restrain the buckling deformation for H-shaped compression members with an eccentric brace at the center of the member, and with continuously eccentric braces, respectively. But the effect for the continuously eccentric braces may be different from that for an eccentric brace at the center of the compression member. In addition, the reduction ratio of the buckling stress with web deformationin inelastic range may be different from that in elastic range.If it makes the effect of each eccentric bracing equivalent, it is more practical to design the compression members with eccentric braces in the space structures.
This paper compares the elasto-plastic buckling behavior for H-shaped compression members with eccentric braces at the center of members to that with continuously eccentric braces, and estimates the equivalent of the bucking bracing stiffness for two kinds of eccentric bracing methods within critical slenderness ratio.

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© 2013 Japanese Society of Steel Construction
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