Nonlinear analysis of hollow-core slabs with and without FRP reinforcement

Abstract

In this study, a numerical model of the shear behavior of precast prestressed hollow-core slabs is presented. The nonlinear analysis is conducted using the Abaqus software and the results are expressed as a comparison between hollow-core units with and without fiber-reinforced polymers. Fiber Reinforced Polymer (FRP) composite is commonly used to strengthen and retrofit a large number of structural elements, being a high-strength composite material made of a polymer matrix reinforced with fibers. The shear strengthening technique consists of the appliance of FRP on the inner surface of the slab’s voids. The comparisons are detailed in terms of load-deflection curves, failure load, and crack pattern.