Effects of Using Longitudinal GFRP Reinforcing Bars on Shear Behaviour of RC Beams: A Review

Main Article Content

Abdulrahman A. Ibrahim
Mohammed M. Rasheed

Abstract

Traditional steel-reinforced concrete beams are prone to corrosion, necessitating frequent maintenance and repairs. Glass Fiber Reinforced Polymer (GFRP) bars present a promising alternative due to their superior corrosion resistance, high strength-to-weight ratio, and electromagnetic neutrality. This investigation aims to understand the performance characteristics and potential advantages of GFRP in structural applications, particularly in environments prone to corrosion. A series of experimental and analytical tests evaluated, and key parameters such as deflection, stiffness, crack width, and shear strength are analyzed. The results demonstrated that GFRP-reinforced beams exhibit significantly higher deflections and strains post-cracking compared to their steel-reinforced counterparts. This behavior is primarily attributed to the lower modulus of elasticity of GFRP bars and their distinct bond characteristics with concrete. Furthermore, the shear strength of GFRP-reinforced beams was found to be lower than that of steel-reinforced beams, highlighting the need for adjusted design methodologies. The study underscores the necessity for over-reinforcement in GFRP-reinforced beams to achieve adequate flexural stiffness and suggests the potential benefits of hybrid reinforcement, combining GFRP and steel, to improve overall structural performance and ductility.


 

Article Details

How to Cite
[1]
A. Almudares and M. . Rasheed, “Effects of Using Longitudinal GFRP Reinforcing Bars on Shear Behaviour of RC Beams: A Review”, Rafidain J. Eng. Sci., vol. 2, no. 2, pp. 87–108, Jul. 2024, doi: 10.61268/dpxk0g63.
Section
Review Articles

How to Cite

[1]
A. Almudares and M. . Rasheed, “Effects of Using Longitudinal GFRP Reinforcing Bars on Shear Behaviour of RC Beams: A Review”, Rafidain J. Eng. Sci., vol. 2, no. 2, pp. 87–108, Jul. 2024, doi: 10.61268/dpxk0g63.

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