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Title |
Structural Performance of Reinforced Concrete Beams Exposed to Freeze-Thawing Environment After Strengthening in Shear with Carbon Fiber-Reinforced Polymer(CFRP)
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Authors |
송선화 ; 김선우 ; 박완신 ; 최기봉 ; 윤현도 |
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Keywords |
동결융해 ; 탄소섬유 보강된 폴리머 ; 철근콘크리트 보 ; 전단보강 freeze-thawing ; carbon fiber-reinforced polymer ; reinforced concrete beams ; shear strengthening |
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Abstract |
In these days, carbon fiber-reinforced polymers (CFRP) have been widely used for retrofitting and/or strengthening structural elements. However, there are not enough test data to predict the long-term performance of the retrofitted structures exposed to freeze-thawing cycles. This paper presents the results of experimental program undertaken to investigate the effects of freeze-thawing cycling (from-18 to 4℃) on the behavior and failure characteristics of reinforced concrete (RC) beams strengthened in shear with CFRP sheet and plate using acoustic emission (AE) technique.
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