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Journal of the Korea Concrete Institute

J Korea Inst. Struct. Maint. Insp.
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  • Korea Citation Index (KCI)

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Title Experimental Verification of Reinforced Concrete Beam with FRP Rebar
Authors 오홍섭 ; 안광열
Page pp.93-100
ISSN 1226-6205
Keywords 연성지수 ; 파괴형태 ; FRP ; 휨성능 ; 모멘트-변위 Ductility index ; Failure modes ; Fiber reinforced polymer ; Flexural capacity ; Moment-deflection
Abstract The use of fiber reinforced polymer (FRP) composites is significantly growing in construction and infrastructure applications where durability under harsh environmental conditions is of great concern. In order to examine the applicability of FRP rebar as a reinforcement in flexural member, flexural tests were conducted. 12 beams with different FRP materials such as CFRP, GFRP and Hybrid FRP and reinforcement ratio were tested and analyzed in terms of failure mode. moment-deflection. flexural capacity, ductility index and sectional strain distribution. The test results were also compared with the theoretical model represented in ACI 440.1R06. Test results indicate that the flexural capacity of the beams reinforced by FRP bars can be accurately predicted using the ultimate design theory. They also show that the current ACI model for computing the deflection overestimates the actual deflection of GFRP series and underestimates the deflection of CFRP series.