Flexural‐Torsional Stability of Thin‐Walled Columns
Publication: Journal of Engineering Mechanics
Volume 118, Issue 12
Abstract
This paper discusses the problem of flexural‐torsional stability of columns with open thin‐walled cross sections. It introduces an analytical solution technique applicable to the differential equation system describing the current problem. The approach derived is more comprehensive than those presented traditionally in the literature and is applicable in determining the value of critical load due to combined buckling modes. The system considered consists of three separate differential equations that are coupled in a general case. Various symmetries of the cross section release these couplings. This presentation is limited, for simplicity, only to columns having singly symmetric cross sections, or at least cross sections of point symmetry. Thus, there are couplings between two of the governing equations, The elastic restraints having varying stiffnesses with respect to translation, rotation, torsion and warping, separately, have been studied as boundary conditions through numerical examples. The stiffnesses of the restraints applied are chosen to cover the range from zero to infinity.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 118 • Issue 12 • December 1992
Pages: 2384 - 2400
Copyright
Copyright © 1992 ASCE.
History
Published online: Dec 1, 1992
Published in print: Dec 1992
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