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International Journal of Polymer Science
Volume 2015 (2015), Article ID 213583, 8 pages
http://dx.doi.org/10.1155/2015/213583
Research Article

Shear Behavior of Concrete Beams Reinforced with GFRP Shear Reinforcement

Department of Architectural Engineering, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 446-701, Republic of Korea

Received 5 August 2015; Revised 23 September 2015; Accepted 27 September 2015

Academic Editor: Gonzalo Martínez-Barrera

Copyright © 2015 Heecheul Kim et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This paper presents the shear capacities of concrete beams reinforced with glass fiber reinforced polymer (GFRP) plates as shear reinforcement. To examine the shear performance, we manufactured and tested a total of eight specimens. Test variables included the GFRP strip-width-to-spacing ratio and type of opening array. The specimen with a GFRP plate with a opening array showed the highest shear strength. From the test results, the shear strength increased as the strip-width-to-strip-spacing ratio increased. Also, we used the experimental results to evaluate whether the shear strength equations of ACI 318-14 and ACI 440.1R can be applied to the design of GFRP shear reinforcement. In the results, the ACI 440 equation underestimated the experimental results more than that of ACI 318.