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Lateral-torsional buckling of channel beams

Seah, L.K. / Khong, P.W.

AbstractA theoretical and experimental study of the buckling behaviour of channel beams with unbraced longitudinal edge stiffeners, bent in such a way that the stiffeners are in compression, is presented. For a relatively short length of beam loaded in such a manner, the beam will buckle symmetrically. However, for a relatively long beam the lateral-torsional buckling may well be the governing mode of failure. The investigations presented here are confined to the latter case of lipped channel beam sections subjected to pure bending. A semi-analytical, semi-numerical approach is used in the theoretical analysis to predict the critical lateral-torsional buckling moments of such beams. Comparison between the theoretical and experimental results is presented and the agreements obtained are reasonably good.

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Lateral-torsional buckling of channel beams

Seah, L.K. / Khong, P.W.

AbstractA theoretical and experimental study of the buckling behaviour of channel beams with unbraced longitudinal edge stiffeners, bent in such a way that the stiffeners are in compression, is presented. For a relatively short length of beam loaded in such a manner, the beam will buckle symmetrically. However, for a relatively long beam the lateral-torsional buckling may well be the governing mode of failure. The investigations presented here are confined to the latter case of lipped channel beam sections subjected to pure bending. A semi-analytical, semi-numerical approach is used in the theoretical analysis to predict the critical lateral-torsional buckling moments of such beams. Comparison between the theoretical and experimental results is presented and the agreements obtained are reasonably good.

Lateral-torsional buckling of channel beams

Seah, L.K. / Khong, P.W.

AbstractA theoretical and experimental study of the buckling behaviour of channel beams with unbraced longitudinal edge stiffeners, bent in such a way that the stiffeners are in compression, is presented. For a relatively short length of beam loaded in such a manner, the beam will buckle symmetrically. However, for a relatively long beam the lateral-torsional buckling may well be the governing mode of failure. The investigations presented here are confined to the latter case of lipped channel beam sections subjected to pure bending. A semi-analytical, semi-numerical approach is used in the theoretical analysis to predict the critical lateral-torsional buckling moments of such beams. Comparison between the theoretical and experimental results is presented and the agreements obtained are reasonably good.

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Title:

Lateral-torsional buckling of channel beams

Contributors:

Seah, L.K. (author) / Khong, P.W. (author)

Published in:

Journal of Constructional Steel Research ; 17 ; 265-282

Publication date:

1990-10-01

Size:

18 pages

ISSN:

DOI:

https://doi.org/10.1016/0143-974X(90)90076-S

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

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