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Flexural Capacity of Concrete Beam Strengthened with Near-Surface Mounted Carbon Fiber Reinforced Polymer  

Oh, Hong Seob (국립진주산업대학교 토목공학과)
Sim, Jong Sung (한양대학교 토목공학과)
Ju, Min Kwan (한양대학교 토목공학과)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.12, no.3, 2008 , pp. 84-92 More about this Journal
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 ($15{\times}13{\times}6mm$) and Type B ($4{\times}3{\times}10mm$) 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.
Keywords
Flexural performance; Inverse-shaped CFRP; NSM strengthening method;
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