Title: Concrete Shear Strength: Another Perspective

Author(s): A. Koray Tureyen and Robert J. Frosch

Publication: Structural Journal

Volume: 100

Issue: 5

Appears on pages(s): 609-615

Keywords: fiber-reinforced polymer reinforcement; reinforced concrete; shear; shear strength.

DOI: 10.14359/12802

Date: 9/1/2003

Abstract:
Recent tests of beams reinforced with fiber-reinforced polymer (FRP) bars indicate that traditional design methods for shear are not suitable for the design of beams incorporating these materials. The goal of this research was to develop a simple method for the design of FRP-reinforced beams and to determine if a common approach for steel and FRP-reinforced members is possible. This study presents a model for calculating the concrete contribution to shear strength of reinforced concrete beams. The applicability of the model is supported by comparing the computed shear strengths with the experimental strengths of 370 specimens. The shear strength equation developed from the model is simplified to provide a design equation that is applicable for both steel and FRP-reinforced beams. The design equation is shown to provide conservative results across the range of variables known to affect shear strength.