Finite Element Simulation of Steel Plate Concrete Beams subjected to Shear

In a test series ofSteel plate Concrete (SC) beams conducted by the authorsto determine the minimum shear reinforcement ratio, complex structural behavior of the tested beams was observed, including shear cracking occurred within the concrete in the web and bond-slip failure of the bottom steel plate of the beam due to insufficient shear reinforcement ratio (Qin et al. 2015).This paper focuses on finite element simulation (FEM) of the SC beams withemphasis on shear and bond-slip behavior. A new constitutive model is proposed to account for the bond-slip behavior of steel plates. Also, the Cyclic Softened Membrane Model proposed by Hsu and Mo (2010)is utilized to simulate the shear behavior of concrete with embedded shear reinforcement. Both constitutive models areimplemented into a finite element analysis program based on the framework of OpenSees (2013).The proposed FEM is able to capturethe behavior of the tested SC beams.