Behavior of Post-tensioned Simply Supported Deep Beams

Abstract

The deep beam is a beam having a large depth/thickness ratio and shear span depth ratio. Because the geometry of deep beams, their behavior is different from the slender beam. Deep beams have many applications for both residential and commercial building structures such as transfer girders, transfer caps of high-rise buildings and as part of a lateral load resisting system (Outriggers)…etc. The use of deep beams has increased rapidly because of their convenience and economic efficiency. Using post-tensioning (PT) in deep beams offers many advantages like significant reduction of reinforcement, high durability, greater stiffness, and hence better cracking and deflection behavior. The prime objective of the thesis is to study the contribution of post-tensioned cables to the main reinforcement of the deep beam and the optimum ratio of (vertical stirrups to side bars) from the required shear reinforcement of the deep beams.