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Online ISSN : 1884-0329
Print ISSN : 1880-9928
ISSN-L : 1880-9928
EFFECT OF LOCAL BUCKLING ON PLASTIC ROTATION CAPACITY OF WIDEFLANGE STEEL BEAMS SUBJECTED TO CYCLIC LOADING
Dawei LIUIori KANAOMasayoshi NAKASHIMA
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2003 Volume 10 Issue 37 Pages 61-70

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Abstract

This paper presents an analytical study on the width-to-thickness requirements for flanges and webs of steel beams subjected to cyclic loading. Limit values are derived numerically for the combination of flange and web thickness that ensure sufficient beam rotation capacity. Interaction between lateral-torsional and local buckling was examined, and local buckling induced by lateral-torsional buckling was found to be the major source of strength reduction when the web is relatively thick. Restraining effect of top flanges (due to the presence of floor slabs) was found to be conspicuous and more pronounced for thick webs.

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© Japanese Society of Steel Construction
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