Research Article
Mar 1976
Buckling of Welded Hybrid Steel I-Beams
Publication: Journal of the Structural Division
Volume 102, Issue 3
Abstract
Allowance is made in the analysis for the effects of the residual stresses produced by welding and sections fabricated from both Universal Mill (UM) plates and flame cut (FC) plates are considered. Early yielding of the beam's web is shown to have little effects upon lateral stability, the stiffness of the compression flange being the most important factor. For a constant weld size, hybrid sections and sections fabricated from the flange material throughout are found to have very similar lateral buckling strengths. Plotting the results on an equivalent lateral-torsional slenderness ratio basis actually causes the hybrid sections' curve to be the highest. Use of this technique also minimizes the effect of variations in cross-sectional shape although the level of residual stresses in the sections remains an important parameter. Sections fabricated from FC plates are found to possess slightly differently shaped lateral buckling curves to sections fabricated from UM plates.
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Published In
Journal of the Structural Division
Volume 102 • Issue 3 • March 1976
Pages: 461 - 474
Copyright
© 1976 American Society of Civil Engineers.
History
Published in print: Mar 1976
Published online: Feb 1, 2021
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Authors
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David A. Nethercot
Lect. Dept. of Civ. and Struct. Engrg., Univ. of Sheffield, Sheffield, United Kingdom
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.