Study on Sectional-Global Interaction Buckling of Stainless Steel Lipped-C Beam-Columns
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As part of a research series concerning sectional and member capacity of cold-formed stainless steel beam-columns, this paper presents some experimental and simulated results on the interaction buckling behavior of stainless steel lipped-C beam-columns. Two series of tests (12 specimens in each series) were carried out first, for which the cross-section geometry and end restraints of specimens were designed to obtain distortional-global and local-global interaction buckling respectively. The experiments involved two alloys (austenitic S30401 (1.4301) and duplex S32205 (1.4462)) and three loading eccentricity levels (none, small and large). A detailed finite element model based on ABAQUS was developed and verified against test date.