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Title |
Evaluation of Steel Pull-Out of Reinforced Concrete Beam-Column Joints
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Keywords |
보-기둥 접합부 ; 뽑힘 현상 ; 보 주인장철근 미끄러짐 ; 연성능력 ; 전단강도 beam-column jont ; pull-out ; beam reinforcement slip ; ductile capacity ; shear strength |
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Abstract |
In this report, the test results of five reinforced concrete beam-column joint subjected to cyclic load are presented. The main purpose of the research is to investigate the influence of the steel pull-out of the beam-column joints to the shear and ductile capacity of the RC beam-column assembles. In addition, the influence of the amount of beam reinforcement to the joint shear and ductile capacity is evaluated. Test results indicate that the yield penetration of steel bar increases as the joint shear strength ratio, Vj1/Vjby decreases. And the slippage of the steel bars are varied according to the region of the beam-column joints. The pull-out of the steel bars of five specimens was almost the same regardless of the joint shear strength ratio, Vj1/Vjby. Because it was affected by not only the yield penetration of steel bar but also the axial elongation in the plastic hinge.
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