Non Linear Finite Element Method of Analysis of Reinforced Concrete Deep Beam

ABSTRACT: This paper describes analysis of deep beams subjected to two point loading with three different L/D ratios (1.5, 1.6, 1.71) using Non-linear Finite element method (ANSYS 9.0 software) in order to investigate the stress and strain distribution pattern at mid-section of the beam. In ANSYS 9.0 software, SOLID 65 and LINK 8 element represent concrete and reinforcing steel bars. Non-linear material properties were defined for both elements .Using ANSYS software Flexural Strains and Stresses were determined at mid-section of the beam and shear stresses near the support of the beam. Also the failure crack-patterns were obtained. Variation of flexural stresses and strains, shear stresses were plotted. It was found that the smaller the span/depth ratio, the more pronounced is the deviation of strain pattern at mid-section of the beam.