Cyclic Performance of Restrained Steel-Concrete Fully Composite Beams Subjected to a Point Load

Abstract

Composite beams are made of steel sections connected with slabs of concrete held together with shear connectors. The beams enhance the loading capacity and stiffness according to AISC and AASHTO design standards. In this study tests on three restrained steel-concrete full composite beams subjected to a cyclic point load and monotonic loading were conducted and their performances on stiffness, strength, ductility and energy dissipation capacity were analyzed and compared with the results of monotonic loading cases. It was found that the degree of the shear connectors and the type of loading and the position of the load were the major factors influencing the stiffness and cumulative energy dissipation capacity of the full composite restrained steel beams.