Finite Element Analysis of Flat Slab with Punching Shear Reinforcement

Punching shear failure is a major problem encountered in the design of reinforced concrete flat slabs. The utilization of shear reinforcement via shear bolts, shear studs or other means has becomes a choice for improving punching shear capacity. In this paper Finite-element analyses (FEA) of flat slab with shear reinforcement are presented and discussed. The punching shear strengthening is done using carbon fiber reinforced polymer (CFRP) strips which is externally bonded to the tension face of the slab. The effect of varying CFRP strengthening amount and configuration on the punching shear capacity of the slab specimens was investigated. The results clearly showed that CFRP strengthening leads to signi�cant improvements in the structural behaviour of slab-column connections. The general finite element software ANSYS 18 can be used successfully to simulate the punching shear behaviour of reinforced concrete flat plates.