Effect of Residual Stress on Cold‐Formed Steel Column Strength
Publication: Journal of Structural Engineering
Volume 117, Issue 6
Abstract
The effect of residual stress on the flexural buckling strength of cold‐formed steel columns is studied. Based on the results of 93 column tests and the measured residual stresses, significant relation is observed between the reduction of column strength, the magnitude and distribution of residual stress, and the flat‐width ratio of the plate element of the cold‐formed section. In this study, a new concept called the “second reduction” is developed to account for the effect of the residual stresses on the local buckling behavior of cold‐formed steel columns. Based on this concept, a possible design procedure is outlined for the prediction of the flexural buckling strength of cold‐formed steel columns. The theoretical predictions are found to be in good agreement with the test results.
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References
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 117 • Issue 6 • June 1991
Pages: 1622 - 1640
Copyright
Copyright © 1991 ASCE.
History
Published online: Jun 1, 1991
Published in print: Jun 1991
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