Steel-concrete composite beams have been widely used in the high-rise buildings and large span steel structure. Composite beams effective flange width has been further investigated in domestic, as well as the force and deformation within elastic stage and plastic stage.
Steel-concrete composite beams give full paly yo the advantages of steel and concrete material. It is light weight, efficient, and applicable to large span. . The composite beam is mainly used in high-rise building and large span steel structure building at home and abroad. Commonly used for of composite slabs are concrete slabs, steel sheeting concrete floor and steel truss for floor plate; and H-shaped steel composite form is often used in cast-in -place steel -concrete compoisite beams .