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Effect of compressive glass fiber-reinforced polymer bars on flexural performance of reinforced concrete beams
, Article ACI Structural Journal ; Volume 119, Issue 6 , 2022 , Pages 5-18 ; 08893241 (ISSN) ; Khaloo, A ; Aliasghar Mamaghani, M ; Khaloo, H ; Sharif University of Technology
American Concrete Institute
2022
Abstract
This research studies the effect of glass fiber-reinforced polymer (GFRP) bars as compressive reinforcement in reinforced concrete (RC) beam members. Three singly and six doubly reinforced GFRP-RC beams were tested under a four-point loading configuration. The effect of compressive reinforcement on the load-bearing capacity, ductility, stiffness, and failure mode is determined. Also, the compressive performance of GFRP bars is evaluated by testing GFRP-RC cylinders. According to the results, GFRP bars in compression had a limited contribution to enhancing flexural strength, and the maximum increment in the flexural capacity of doubly reinforced beams compared to singly reinforced specimens...