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Title |
Evaluation of Dowel Bar on the One-way Shear and Shear Friction Behaviors of Hybrid Beams Composed of Steel and Reinforced Concrete Elements
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Authors |
권혁진(Hyuck-Jin Kwon) ; 양근혁(Keun-Hyeok Yang) ; 홍승현(Seung-Hyun Hong) |
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DOI |
https://doi.org/10.4334/JKCI.2017.29.1.093 |
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Keywords |
하이브리드 보 ; HSRC 보 ; 장부철근 ; 일축 전단 ; 전단마찰 hybrid beam ; rigid connection ; dowel bar ; one-way shear ; shear friction |
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Abstract |
This study examined the one-way shear in concrete beam region and shear friction in joint region of a hybrid H-steel-reinforced concrete (HSRC) beam system with a simple ductile connection. One-way shear tests were conducted under overhanging beam system with a shear span-to-depth ratio of 1.6. Simple beams for shear friction were tested under two-point symmetrical top loads producing a clear shear span-to-depth ratio of 0.1. Test results showed that the dowel bars arranged in joint region insignificantly influence the propagation of shear cracks but enhances the shear strength of the HSRC beams by approximately 25%. The one-way shear strength and shear friction strength of HSRC beams can be conservatively evaluated using the design equations specified in ACI 318-14 and EC2 shear provisions.
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