Sag Rods as Lateral Supports for Girts and Purlins
Publication: Journal of Structural Engineering
Volume 113, Issue 7
Abstract
Although cold‐formed sections provide substantial savings, because of their high strength‐to‐weight ratio, their cross‐sectional configuration gives rise to behavioral phenomena not encountered in the more familiar hotrolled sections. Of great concern to structural engineers is the tendency of these members to deform under most conditions of loading and to fail by yielding or local buckling as a result of the stresses developed. Channels and Z‐sections are commonly used as girts and purlins. In many installations, sag rods are used to provide alignment for these members for the attachment of the steel panels and to reduce their tendency to bend laterally and twist. Test results indicate that the presence of sag rods may not always be beneficial to the girts or purlins and, in fact, may cause premature distortional buckling of the compression flange.
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References
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 113 • Issue 7 • July 1987
Pages: 1521 - 1531
Copyright
Copyright © 1987 ASCE.
History
Published online: Jul 1, 1987
Published in print: Jul 1987
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