ABSTRACT
ABSTRACT: Modem steel making techniques have enabled production of high-strength steels, which are being in structural constructions. The mechanical characteristics of such steels are very much different from those of mild-carbon steel. This investigation concerns with the behaviour and performance of high-strength steel elements, members and structures. The Finite Element Method based study considered the strength and ductility ofl-shaped stub column sections, and short beam sections. The stub columns were subjected to uniform displacements and the short beams were subjected to uniform rotations until complete collapse. The objective is to establish the effects of material stress-strain relationship characteristics on the strength and ductility of structural members. A wide range of flange and web slenderness was selected in order to establish the effects of cross sectional compactness on the section strength and the section ductility. It was observed that the available ductility tends to increase as the flange and web slenderness decrease.
