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2024 | OriginalPaper | Chapter

Retrofitting Methods for Shear Strengthening of Reinforced Concrete Beams Using CFRP

Authors : R. Arvindh Raj, R. Senthilkumar

Published in: RC Structures Strengthened with FRP for Earthquake Resistance

Publisher: Springer Nature Singapore

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Abstract

Due to the ageing of infrastructures, there is a need for repair and rehabilitation of the structures at later stages. The usage of carbon fiber-reinforced polymer for strengthening is one such practice that has become common in the Indian scenario. This paper specifically discusses the comparison of different application methods of carbon fiber-reinforced polymers for enhancing the shear capacity of the reinforced concrete beams. Near surface mounted carbon fiber-reinforced polymer strips, externally bonded carbon fiber-reinforced polymer strips and externally bonded carbon fiber-reinforced polymer strips with U–wrap are the methods adopted for strengthening reinforced concrete beams for shear. Three-point loading flexure tests were conducted on the strengthened beams, and it was found that the near surface mounted method exhibited a 28.5% increase in the shear capacity of the beam. In contrast, the externally bonded method exhibited an 18.5% increase, and externally bonded with U–wrap exhibited a 142% increase in the shear capacity of the beam compared to the control beam.

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Metadata
Title
Retrofitting Methods for Shear Strengthening of Reinforced Concrete Beams Using CFRP
Authors
R. Arvindh Raj
R. Senthilkumar
Copyright Year
2024
Publisher
Springer Nature Singapore
DOI
https://doi.org/10.1007/978-981-97-0102-5_12