Experimental Investigation of the Interaction of Local and Overall Buckling of Stainless Steel I-Columns
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Volume 135, Issue 11
Abstract
This paper describes an experimental program carried out at the University of Sydney to study the interaction of local and overall flexural buckling in stainless steel I-columns. The columns were composed of cold-formed back-to-back channels, connected with sheet metal screws. Two stainless steel alloys were considered: austenitic AISI304 and ferritic AISI404. Tests were carried out to determine the material properties. The results reveal nonlinear stress-strain behavior with low proportionality limit, moderate anisotropy, and enhanced strength as a result of cold working. A total of 24 columns were tested under an axial load, applied with a nominal eccentricity of , where =effective length. The length of the specimens varied between 500 and 3,000 mm in 500-mm increments. Twin specimens were tested for each length. All columns were tested between pinned ends. The research aims to rectify the lack of experimental data on local-overall interaction buckling in stainless steel columns with open cross section.
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Information
Published In
Journal of Structural Engineering
Volume 135 • Issue 11 • November 2009
Pages: 1340 - 1348
Copyright
© 2009 ASCE.
History
Received: May 31, 2008
Accepted: Mar 30, 2009
Published online: Apr 1, 2009
Published in print: Nov 2009
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