Experimental Evaluation of Shear Behaviors of Concrete Deep Beams with GFRP Shear Reinforcement

Abstract:

This paper deals with the application of Glass Fiber Reinforce Polymer (GFRP) to shear reinforcement for deep beam. Instead of steel stirrup, GFRP shear reinforcement was fabricated in the form of plate with openings and embedded in concrete. An experimental study was performed to evaluate the shear behavior of eight shear reinforced concrete deep beam. Shear test was conducted in which the shear span-to-depth ratio were 1.1, 1.3 and 1.6. Also, shear reinforcement area, and effective depth were considered as variables. Crack patterns, failure modes, and load-displacement were compared in order to evaluate shear strength of the specimens. The effects of these variables on the shear strength of the deep beam were examined. The test results in terms of the shear span-to-depth ratio showed that shear strength increased when the ratio decreased. Also, it showed that shear strength increased as the reinforcement area and the effective depth increased.

• Periodical: Applied Mechanics and Materials (Volumes 764-765)
• Pages: 1080-1084
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.764-765.1080
• Online since: May 2015
• Authors: Young Hak Lee, Hee Cheul Kim, Ha Eun Park, Nam Shik Ahn, Min Sook Kim*
• Keywords: Concrete Beam, Deep Beam, FRP, Shear Reinforcement, Shear Strength

References

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[3] ACI Committee 318-11: Building code Requirements for Reinforced Concrete and Commentary (ACI318-11), Farmington Hills, American Concrete Institute (2011).