The Effects of Bent-up Bar on High Strength Reinforced Concrete Beam-Colum Joint Subjected to Cyclic Loads

반복하중을 받는 고강도 철근콘크리트 보-기둥 접합부의 구부림철근 효과에 관한 연구

The purpose of this study was to investigate the effect of Bent-up Bars in Beam-Column Joint with High-Strength Concrete up to 800 kg/$\textrm{cm}^2$. 5 specimens were tested under reversed cyclic loadings. The primary variables were the number of the Bented Bars with Joint Core, compressive strength and loading patterrns. The results showed that bent-up bars in beam-column joint prevented crack from extending into core but the failure was concreterated at the face of beam-column joint. Thus shear stress constant value(Г) should be revised for High Strength Concrete Beam-Column Joint with Bent-up Bars.