The Structural Engineer > Archive > Volume 71 (1993) > Issues > Issue 12 > Buckling of Plates in Contact with a Rigid Medium
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Buckling of Plates in Contact with a Rigid Medium

Local buckling of steel plates in compression is often the limiting design criterion for section design. Slenderness limits for plates, stated in Codes of Practice, dictate the form of section and frame analysis that may be used. These slenderness limits have been evaluated assuming free buckles and may be too conservative when the plate is in contact with a rigid medium, e.g. at the top flange of a composite beam or concrete-filled steel section. The evaluation of slenderness limits for elastic, compact and plastic buckling is complex and involves empirical input. This paper describes a method whereby slenderness limits may be evaluated in a rational way. The method is used to obtain slenderness limits for a variety of sections when the plate is in contact with a rigid medium. Professor H.D. Wright

Author(s): Wright, H D

Keywords: ;plates;steel;design;slenderness;codes of practice;comparing;orthotropic;stresses;welds;buckling