" A state of the art review of Static Analysis of Multi Layers RC Deep Beams Under Combined Shear and Torsion "

Abstract

RC deep beams, which serve as transfer girders in bridges and tall buildings, are crucial structural systems that must be safe since they bear heavy loads across small spans. The shear strength and pure torsion together of deep beams is not reliably and properly predicted by recent design standards in practice codes, and in some situations, they are dangerous. To improve current design methodologies and more precisely anticipate the shear and torsion capacity of such members, it is the goal of this effort to understand the behavior of (hybrid) deep beams and their controlling factors. This study examines the impact of vertical and horizontal reinforcement and shear span ratios on failure modes and strengths. This study summarizes earlier research on strengthening Deep (hybrid) beams by the ratio of vertical and horizontal reinforcement resist both shear and torsion and adding SFRC technology. It also illustrates the impact of several strengthening materials of concrete, fiber reinforced concrete and ultra-high strength concrete (UHSC) and their effect on the flexural strength of RC beams