K‐Factor Paradox
Publication: Journal of Structural Engineering
Volume 112, Issue 8
Abstract
It is demonstrated how the K‐factor concept can give rise to peculiarities that are in direct conflict with the common‐sense approach to design. For example, although a buckling analysis may indicate a K‐value greater than or smaller than 1.0 for a leaning column in an unbraced frame, the designer will always adopt for proportioning such columns. However, the K‐factors obtained from the buckling analysis are the correct values to be included in the moment magnifier expression. The contradictions created by the K‐factor are also apparent in frames with semirigid as well as fully rigid connections. It is proposed that all these anomalies can be eliminated by employing column interaction equations that do not make use of the K‐factor.
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References
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 112 • Issue 8 • August 1986
Pages: 1747 - 1760
Copyright
Copyright © 1986 ASCE.
History
Published online: Aug 1, 1986
Published in print: Aug 1986
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