Shear Strengthening of Reinforced Concrete Beams Using GFRP Wraps

Authors

  • M. A. A. Saafan

DOI:

https://doi.org/10.14311/800

Keywords:

strengthening, shear capacity, GFRP, polyester, fiberglass, wrapping

Abstract

The objective of the experimental work described in this paper was to investigate the efficiency of GFRP composites in strengthening simply supported reinforced concrete beams designed with insufficient shear capacity. Using the hand lay-up technique, successive layers of a woven fiberglass fabric were bonded along the shear span to increase the shear capacity and to avoid catastrophic premature failure modes. The strengthened beams were fabricated with no web reinforcement to explore the efficiency of the proposed strengthening technique using the results of control beams with closed stirrups as a  web reinforcement. The test results of 18 beams are reported, addressing the influence of different shear strengthening schemes and variable longitudinal reinforcement ratios on the structural behavior. The results indicated that significant increases in the shear strength and improvements in the overall structural behavior of beams with insufficient shear capacity could be achieved by proper application of GFRP wraps.

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Author Biography

  • M. A. A. Saafan

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Published

2006-01-01

Issue

Vol. 46 No. 1 (2006)

Section

Articles

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How to Cite

Saafan, M. A. A. (2006). Shear Strengthening of Reinforced Concrete Beams Using GFRP Wraps. Acta Polytechnica, 46(1). https://doi.org/10.14311/800