Thin-Walled Cold-Formed Steel Beams with Holes in Lateral Flexural-Torsional Buckling

Abstract:

In this paper the study on lateral flexural-torsional buckling of steel sigma-cross-section beams with web holes will be presented. The analysis of corresponding stability problem is based on general approach derived for a group of beams including at least mono-symmetric sections loaded transversally to their plane of symmetry. The effective flexural and torsional stiffness of steel beams with holes has been verified by tests. The results of theoretical analysis were compared with specification design procedure and also with actual behaviour of set of beams investigated by experiments. The study conclusions aim to become the background of the supplements to specified provisions for the design of steel structures.

• Periodical: Advanced Materials Research (Volume 743)
• Pages: 170-175
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.743.170
• Online since: August 2013
• Authors: Marcela Karmazínová, Jindrich Melcher, Martin Horáček
• Keywords: Beam, Cold-Formed, Cross-Section Characteristic, Experimental Investigation, Holes, Lateral Flexural-Torsional Buckling, Sigma-Cross-Section, Thin-Walled, Verification

References

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DOI: 10.1002/stab.199900060

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DOI: 10.3403/02338401u