The Structural Engineer > Archive > Volume 60 (1982) > Issues > Issue 16 > The Influence of Torsional Restraint Stiffness at Supports on the Buckling Strength of Beams
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The Influence of Torsional Restraint Stiffness at Supports on the Buckling Strength of Beams

The design rules in British Standards relating to bridges and buildings for lateral torsional buckling of beams are summarised. Attention is focused on the torsional restraint requirements at the supports for achieving the ultimate design limit state. The results of an experimentol investigation carried out using hot rolled universal beam sections under the action of a central point load applied at the top flange level are presented. The beams were tested to failure with different degrees of torsional restraint stiffness at the supports and the results compared with the design values obtained from British Standards. B. Bose