An Analytical Solution for the Elastic Lateral-Distortional Buckling of I-section Beams

Ng, M, L-H. and Ronagh, H. R. (2004) An Analytical Solution for the Elastic Lateral-Distortional Buckling of I-section Beams. Advances In Structural Engineering, 7 2: 189-200. doi:10.1260/1369433041211129


Author Ng, M, L-H.
Ronagh, H. R.
Title An Analytical Solution for the Elastic Lateral-Distortional Buckling of I-section Beams
Journal name Advances In Structural Engineering   Check publisher's open access policy
ISSN 1360-4332
Publication date 2004-04-01
Sub-type Article (original research)
DOI 10.1260/1369433041211129
Volume 7
Issue 2
Start page 189
End page 200
Total pages 12
Editor J. M. Ko
Place of publication United Kingdom
Publisher Multi-Science Publishing Co. Ltd.
Language eng
Subject C1
290801 Structural Engineering
680203 Civil
Abstract Lateral-distortional buckling may occur in I-section beams with slender webs and stocky flanges. A computationally efficient method is presented in this paper to study this phenomenon. Previous studies on distortional buckling have been on the use of 3(rd) and 5(th) order polynomials to model the displacements. The present study provides an alternative way, using Fourier Series, to model the behaviour. Beams of different cross-sectional dimensions, load cases and restraint conditions are examined and compared. The accuracy and versatility of the method are verified by calibrating against the results of other published studies. The present method is believed to be a simple and efficient way of determining the buckling load and mode shapes of I-section beams that are susceptible to lateral-distortional buckling modes.
Keyword Construction & Building Technology
Engineering, Civil
Lateral-distortional Buckling
Elastic Buckling
Fourier Series
Structural Stability
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Q-Index Code C1

 
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Created: Wed, 15 Aug 2007, 15:01:17 EST