Effect of Reinforcing Material on Punching Shear Strength of PC Slabs and its Evaluation

Abstract

In order to clarify the effect of the reinforcing material on the punching shear strength of PC slabs, including the fracture process, various studies were conducted using existing experimental data and FEM analysis. As a result, it was confirmed that the effect of the reinforcing bar ratio on the punching shear strength of PC slabs is smaller than that for RC slabs, whereas the effect of short fibers is equal to or greater than that for RC slabs. In addition, it was shown that the punching shear strength of PC slabs using fiber reinforced concrete can be evaluated well by adding to the load on the concrete content the load on the short fiber content, taking into consideration the effects of the residual tensile strength and the effective height.