LATERAL BRACING SPACING AND STRENGTH OF H-SHAPED STEEL BEAMS UNDER CYCLIC LOADING

Abstract

The lateral-buckling behaviour of steel beams are affected significantly by the boundary conditions at both ends of the beam. So the strength of the laterally supported beams should be evaluated with considering the condition of the adjacent span crossing the stiffner. The purpose of this paper is to propose the strength index which can evaluate the maximum strength and the residual strength of laterally supported H-shaped steel beams under cyclic loading considering elastic-plastic behaviour.