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Online ISSN : 1884-0329
Print ISSN : 1880-9928
ISSN-L : 1880-9928
PLASTIC DEFORMATION CAPACITY OF H-SECTION BEAMS WITH LONGITUDINAL WEB STIFFENERS
Tsutomu HOSHIKAWAYukihiro HARADA
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2013 Volume 20 Issue 80 Pages 80_19-80_32

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Abstract

The purpose of the present study is to investigate how longitudinal stiffener plates can improve plastic deformation capacity of the H-section steel beams with a thinner web. Efficiency of the retrofit can be quantitatively estimated by an accumulated plastic deformation obtained from cyclic loading tests and numerical simulation. The quantitative estimate method of prevention effect of local buckling by the theory of elastic buckling of plates is proposed. The design procedure of stiffeners by prediction formula of plastic deformation capacity and increasing rate in strength is proposed.

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© 2013 Japanese Society of Steel Construction
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