Shear Strengthening of Reinforced Concrete Beams Using Fibre Reinforced Polymer: A Critical Review

• Published in: IOP conference series. Materials Science and Engineering Vol. 1200; no. 1; pp. 12015 - 12023
• Main Authors: Hakim, S J S, Mohd Rodzi, M A H, Ayop, S S, Shahidan, S, Mokhatar, S N, Salleh, N
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 01.11.2021
• Subjects: Concrete; Corrosion resistance; Failure modes; Fiber reinforced concretes; Fiber reinforced plastics; Fiber reinforced polymers; Reinforced concrete; Shear strength; Stiffness; Stirrups; Strength to weight ratio; Strengthening; Tensile strength
• ISSN: 1757-8981; 1757-899X
• DOI: 10.1088/1757-899X/1200/1/012015

Abstract The primary purpose of reinforcing bar stirrups in a reinforced concrete beam is to improve shear strength. The FRP system may significantly improve a concrete beam’s ultimate shear strength, serviceability, and ductility. The application of FRP for the repair and reinforcement of the structures has become very popular due to its low weight, high tensile strength, and simplicity of installation on uneven surfaces. FRP material outperforms other traditional materials in strengthening applications due to its high strength-to-weight and stiffness-to-weight ratios, resistance to corrosion, and ease of handling. The overall objective of this research is to investigate and improve the understanding of the recent research in the area of shear FRP strengthening of reinforced concrete beams. In this paper, recent publications were reviewed to see how different anchoring procedures, different factors that affect FRP performance and different failure scenarios affect the shear strengthening of concrete beams. The benefits and limits of FRP systems, as well as some current research trends are discussed in this project. From the research, it can be stated that type of anchorage technique and different parameter give a different impact to failure mode of the beam.