Finite Element Analysis of Shear Behaviors for Steel Fiber Reinforced Concrete Corbels by ANSYS

Based on the experimental results of 12 steel fiber reinforced concrete corbels, the numerical simulation by nonlinear finite element method was adopted to analyze their behaviors and to explore the influence of steel fiber volume ratio, the shear span to depth ratio and the strength of concrete on the shear behaviors, crack and deformation of concrete corbels. The results indicate that the shear behaviors increases with the increase of the volume ratio of steel fibers or steel fiber concrete strength. The shear behaviors decreases with the increase of shear span ratio. Steel fiber enhances the cracking-resistance capacity of the steel fiber reinforced concrete corbels, decreases the width of the crack and restricts lateral deformation of concrete. Furthermore, the results of the numerical simulation and the results of the relevant experiments coincide well, and it proves the rationality of unit type and material stress-strain relations and failure criteria used in the infinite element analysis model.