The Structural Engineer > Archive > Volume 52 (1974) > Issues > Issue 3 > Residual Stresses and their Influence Upon the Lateral Buckling of Rolled Steel Beams
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Residual Stresses and their Influence Upon the Lateral Buckling of Rolled Steel Beams

The effects of residual stresses on the inelastic buckling of rolled, I-section steel beams are studied using a numerical technique to predict the stiffness of the partially yielded section. Both idealized and measured residual stress patterns are employed and a variety of different sections and grades of steel are considered. Some attention is also given to the effect upon inelastic lateral buckling of the type of variation in material properties likely to be encountered in practice. General conclusions regarding the influence of residual stresses on beam buckling are drawn and improvements to Nethercot's simple method for estimating inelastic buckling strength described. D.A. Nethercot