Finite element analysis of RC deep beams strengthened with I-section and truss reinforcement

Abstract

Shear failure is a major criterion in Reinforced Concrete (RC) Deep Beams, and several investigations were made in the past but only a few succeeded. Alignment of shear reinforcement plays a crucial role in the shear failure and it helps to study its behaviour during critical cracking. This paper investigates the behaviour of 4 deep beams designed by varying the vertical shear reinforcement (in %) and horizontal reinforcement (in %). 2 specimens were cast in conventional way of placing of shear reinforcement and third specimen consists of shear reinforcement in form of truss since deep beams were more effective with strut and tie combinations. A Rolled I section is introduced in the fourth specimen to know the composite behaviour of deep beams. Various parameters like percentage of shear reinforcement, load vs deflection and shear stresses were studied using ABAQUS software.