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Flexural Capacity of Locally Buckled Steel I-Beams Under Moment Gradient


Medium: journal article
Language(s): English
Published in: The Open Construction and Building Technology Journal, , n. 1, v. 7
Page(s): 244-250
DOI: 10.2174/1874836801307010244

Lateral-torsional buckling (LTB) and flange local buckling (FLB) are treated as two independent phenomena in AISC-LRFD 360-10 in which the flexural capacity of locally buckled beams is determined as the minimum value obtained for the limit states of LTB and FLB. A 3-D nonlinear finite-element model using ABAQUS is developed in this research to investigate the interactive flexural capacity of steel I-beams with compact web under moment gradient. It was found that the AISC approach is adequate for beams withcompact or noncompactsections, however, too conservative for beams withslender flangesrepresenting a considerable interaction between LTB and FLB limit states.

Copyright: © 2013 Amin Mohebkhah, Behrouz Chegeni

This creative work has been published under the Creative Commons Attribution 4.0 International (CC-BY 4.0) license which allows copying, and redistribution as well as adaptation of the original work provided appropriate credit is given to the original author and the conditions of the license are met.

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