주철근의 1/2이 겹침이음된 중공단면기둥의 횡철근비에 따른 변형성능

Effect of Transverse Reinforcement Ratios to Deformability of Hollow Sectional Columns having 50% Lap-spliced Longitudinal Bars

Unlike columns having lap-spliced longitudinal bars in plastic hinge regions columns having 50% of lap-spliced bars were reported to have good ductilities relatively. But the effect of transverse reinforcements to deformability is not clearly confirmed. In this study scale models with different confinements were tested under various loading conditions. It was confirmed that deformability was increased with increase of transverse reinforcement ratio regardless of loading conditions and 75% of confinement yielded the satisfactory deformability.