Kou kouzou rombunshuu
Online ISSN : 1884-0329
Print ISSN : 1880-9928
ISSN-L : 1880-9928
Evaluation of Elasto-plastic Buckling Stress for Eccentrically Braced Members Considering Reduction of Torsional Rigidity with web Deformation in Inelastic Range
Yoshihiro KIMURAAkemi AMAMOTO
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2008 Volume 15 Issue 58 Pages 47-55

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Abstract

The studies for the buckling behavior of H-shaped compression members with eccentric braces have not been investigated. Our previous papers clarified the influence of web deformation on buckling load for these members with eccentric braces. However, it was shown that the buckling stress for the members of wide flange shapes is higher than that of plate girder, even though their values of rotational rigidity ratio are equal. In addition, the reduction ratio of the buckling stress with web deformation in inelastic range may be different from that in elastic range. This paper suggests the evaluation method of the buckling stress for eccentrically braced members in inelastic range by the energy method and elasto-plastic large deformation analyses.

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© Japanese Society of Steel Construction
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