Title: Flexural Behavior of One-Way Concrete Slabs by Hybrid Glass Fiber-Reinforced Polymer-Steel Reinforcements

Author(s): Farzad Hatami and Amin Dehghani

Publication: Structural Journal

Volume: 118

Issue: 1

Appears on pages(s): 179-188

Keywords: finite element analysis; glass fiber-reinforced polymer (GFRP); hybrid reinforcement; one-way slab

DOI: 10.14359/51728085

Date: 1/1/2021

Abstract:
A relatively new solution for overcoming corrosion of steel in concrete is the use of fiber-reinforced polymer material as a cost-effective alternative to replacing traditional methods and materials. This study has been carried out on a one-way concrete slab strip under static loading, with hybrid steel and glass fiber-reinforced polymer (GFRP) reinforcement as well as entire steel or almost entirely GFRP reinforcement and the effect of reinforcement ratio and method of hybrid reinforcement on flexural behavior of slabs have been compared. Furthermore, it has conducted finite element analysis to determine the ultimate capacity of studied slabs and has been compared with experimental test results. The results show that using a combination of steel and GFRP reinforcements, respectively on the lower and upper grid of one-way slabs, slightly decreases the ultimate strength, but the corresponding deflection is not increased significantly. Also, energy absorption, flexural stiffness, and linear ductility are slightly decreased.