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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 Flexural Capacity of Concrete Beam Strengthened with Near-Surface Mounted Carbon Fiber Reinforced Polymer
Authors 오홍섭 ; 심종성 ; 주민관
Page pp.84-92
ISSN 1226-6205
Keywords 휨 성능 ; 역사다리꼴 탄소섬유보강재 ; 표면매립 보강공법 Flexural performance ; Inverse-shaped CFRP ; NSM strengthening method
Abstract This study is to investigate the flexural performance of Near Surface Mounted (NSM) strengthening method using Fiber reinforced Polymer (FRP) materials to concrete structures. For this study, the inverse-shaped trapezoid CFRP composite material which has been registered as New Excellent Technology (NET) 351 was adopted to the concrete structure. In this study, two types of the CFRP types were considered; Type A (15×13×6㎜) and Type B (4×3×10㎜) with different strengthening ratio. In the result of the test, it was proved that NSM strengthened specimens had more flexural performance of 20-100% than that of the unstrengthened specimen. With this test result, the structural efficiency was investigated based on the coefficient of ductility and coefficient of crack resistance.