Behavior Of Reinforced Concrete Beams Without Web Reinforcement, Using Finite Element Analysis

Abstract

This study presents a numerical study to simulate the shear behavior of reinforced concrete beam using finite element (FE) modelling.  A three-dimensional finite element (FE) model has been developed by using computer program ANSYS version (15.0) in order to investigate the behavior of three rectangular reinforced concrete beams with different longitudinal reinforcement ratio (1,1.5, 2.5%) without struipps, in terms of crack initiation, propagation and pattern, ultimate shear force as well as shear force-deflection relationship. The analytical results of shear force -deflection response have been compared with available experimental tests. In general, good agreement between the finite element solutions and experimental results have been obtained. The maximum ratio of the experimental ultimate shear force to the numerical ultimate shear force has an average value of (0.928). Parametric studies have been carried out to investigate the effect of compressive strength of concrete (f^' c) and shear span to depth ratio (a/d).