Simulation Nonlinear of Structural Behavior of Hollow Reinforced Concrete Deep Beams Strengthened by CFRP.

Abstract

Deep beam is adopted in many structural buildings and especially in high rise buildings and bridges in the form of transferee girder. Deep beam is primarily loaded in the plane of the member, such a beam is a two-dimensional member in a state of plate stresses whose dominant feature is shear. The beam theory is not applied on this type of beam. In the current paper, five models that represent reinforced concrete deep beam are simulated using finite elements approach by ANSYS to evaluate the full performance under the effect of four-point load. Controls with four models contain longitudinal perforations amending by carbon fiber reinforced polymer CFRP to restore the strength of deep beam without openings. Different parameters are considered such as openings geometry, CFRP layers and CFRP ordination. The result of the analysis indicates that the finite element approach that is applied for analyzing is close to the experimental test. The presence of CFRP restores the strength capacity of deep beam and the failure mode of the deep beam for all models is shear failure.