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Title |
Shear Capacity of the RC T Beams Strengthened for Shear with NSM FRP Strips
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DOI |
https://doi.org/10.11112/jksmi.2022.26.6.256 |
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Keywords |
표면매립; 표면부착; 전단보강; 매립길이; 보강효과 Near-Surface-Mounted (NSM); Externally Bonded (EB); Shear strengthening; Embedded length; Strengthening effect |
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Abstract |
The purpose of this study is to define the shear reinforcing effect of Near-Surface-Mounted (NSM) FRP strips in reinforced concrete (RC)member through a test. Three T shaped RC beams were made and two of them were strengthened with NSM FRP strips for increase shear strength. And those were tested to find the shear strengthening effect. In the test, two case of shear strengthening methods were considered such as 1) with NSMFRP strips having full embedded length and 2) with NSM FRP strips having some what short embedded length and additional externally bonded FRPsheet. As a result, the shear strengthening effect could be obtained when the NSM FRP strips are embedded to have full length up to the bottom ofslab. However the shear strength was not increased in the case of having somewhat short embedded length of NSM FRP strips even additional EBsheet was enhanced.
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