Lateral-Buckling Tests of Cold-Formed RHS Beams
Publication: Journal of Structural Engineering
Volume 121, Issue 11
Abstract
In this paper, tests on the lateral buckling of cold-formed rectangular hollow sections (RHS) beams under uniform bending moment are described. The section size chosen for testing is 75 × 25 × 2.5 mm, which is the largest depth/width ratio manufactured in Australia. The beam spans varied from 2,000 to 7,000 mm to produce a large range of beam-slenderness ratios. Carefully designed loading and support systems were used in the tests to apply gravity load through the centroid of the section and to ensure that simply supported end conditions were achieved. The test results are compared with existing design models and standards. An improved design rule is given for the lateral buckling of cold-formed RHS beams.
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Published In
Journal of Structural Engineering
Volume 121 • Issue 11 • November 1995
Pages: 1565 - 1573
Copyright
Copyright © 1995 American Society of Civil Engineers.
History
Published online: Nov 1, 1995
Published in print: Nov 1995
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