Biaxial Bending of Cold-Formed Z-Beams
Publication: Journal of Structural Engineering
Volume 125, Issue 11
Abstract
This paper reports the results of ten biaxial bending tests on unbraced, simply supported, cold-formed steel Z-beams loaded at midspan in planes inclined to the major principal plane. These results and those of six beams loaded in the major principal plane are compared with analytical predictions and with simple design approximations. The tests show that the beam strengths decrease as the load inclination to the major principal plane increases, and that the strength is higher when the load inclination is toward the web than when it is toward the flange lip. Good agreement is demonstrated between the test results and analytical predictions of the strengths. An extended series of analytical predictions is used to develop simple interaction equations that can be used in the design of eccentrically loaded cold-formed Z-beams.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 125 • Issue 11 • November 1999
Pages: 1284 - 1290
History
Received: Feb 9, 1999
Published online: Nov 1, 1999
Published in print: Nov 1999
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