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Title |
Experimental Study on Improvement of Bond Performance of RC Beams with High-Strength Shear Reinforcement
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Authors |
김상우 ; 김도진 ; 윤혜선 ; 백승철 ; 김길희 |
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Keywords |
부착응력 ; 고강도 전단보강근 ; U자형 전단보강근 ; 부착파괴 ; RC 보 bond stress ; high-strength shear reinforcement ; U-shape reinforcement ; bond failure ; RC beam |
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Abstract |
This study presents a simple method to improve the bond performance of reinforced concrete (RC) beams having high-strength shear reinforcement. In general, the yield strength and the ratio of shear reinforcements are the main parameters governing the shear capacity of RC beams. The yield strength of shear reinforcement, however, has little influence on the bond capacity of RC beams. Therefore, a sudden bond failure of the members with high-strength shear reinforcement can occur before flexural failure. To estimate the structural performance of the proposed method, four RC beams were cast and tested. The main test parameters were the yield strength, ratio, and reinforcing types of shear reinforcements. The experimental results indicated that the proposed method was able to effectively improve the bond performance of RC beams with high-strength shear reinforcement.
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