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Published on: December 13, 2016
Interactive Buckling of Steel LC-Beams Under Bending
Zbigniew Kolakowski1, Jacek Jankowski2
1Lodz University of Technology, 90-924 Lodz, Poland. zbigniew.kolakowski@p.lodz.pl.
Abstract:
The present paper deals with the interactive buckling of thin-walled lipped channel (LC) beams under the bending moment in the web plane when the shear lag phenomenon and distortional deformations are taken into account. A plate model (2D) was adopted for LC beams. The structures were assumed to be simply supported at the ends. A modal method of solution to the interactive buckling problem within Koiter's asymptotic theory, using the semi-analytical method (SAM) and the transition matrix method, was applied. LC-beams, from short through medium-long via long to very long beams, were considered. The paper focuses on the influence of the secondary global buckling mode on the load carrying capacity for the steel LC-beams under bending.
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