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Title |
Evaluation of Shear Performance of Reinforced Concrete Beams for Varying Reinforcement Details of Web Opening
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Authors |
김민준(Min-Jun Kim) ; 이범식(Bum-Sik Lee) ; 김동환(Dong-Whan Kim) ; 김형국(Hyeong-Gook Kim) ; 이용준(Yong-Jun Lee) ; 김길희(Kil-Hee Kim) |
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DOI |
https://doi.org/10.11112/jksmi.2018.22.4.019 |
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Keywords |
철근콘크리트 보 ; 유공 ; 유공 보강근 ; 전단성능 RC beams ; Web openings ; Web opening reinforcement ; Shear performance |
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Abstract |
This study evaluates the shear performance of reinforced concrete members with web opening reinforcement. A total of 4 reinforced concrete members with or without openings were cast then tested. The main variables investigated were with or without of web openings and with or without of web opening reinforcement, respectively. The proposed web opening reinforcement was a rectangle and rhombus-shaped spiral considering of construct ability. Test result showed that the proposed web reinforcement had improved shear capacity and ductility of the specimens. It was found that the web opening reinforcement proposed in this study had a positive effect on the shear strength and crack control of RC beams with web openings. In addition, it was confirmed that the analytical results by the current design codes underestimates the test results of the specimens with the proposed web opening reinforcement.
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