Abstract: In this research, we explored the feasibility of using finite element method to research the punching shear performance of FRP (Fiber Reinforced Polymer) bar reinforced concrete two-way slab under concentrated loads. The finite element model of FRP bar concrete two-way slabs was established by using ANSYS software, and the slab’s punching shear failure process was simulated. The P-w curves (load-deflection curves) in ANSYS simulation were obtained and were further compared with curves obtained from offset concentrated load tests. Results revealed that the simulation curves were in good agreement with test curves, which indicated that ANSYS simulation in substitution of partial punching shear tests is feasible. Furthermore, analysis on the P-w curves showed that the punching failure of FRP bar concrete two-way slab under concentrated load is a local brittle failure, and concrete strength, material, reinforcement ratio, as well as load location are the main factors affecting the shape, highest point, and slope of the P-w curves.

Key words: fiber reinforced polymer, concrete slab, punching, ANSYS, finite element