Effect of Lateral Reinforcement Details to Seismic Performance of RC Piers having Partial Lap-spliced Longitudinal Bars

중실사각단면 교각의 횡철근 상세에 따른 내진성능

Due to the bond failure of lap-spliced longitudinal bars very brittle failure is conducted in existing RC columns. This failure can be, however, prevented by providing partial lap spliced longitudinal bars. But the deformability of columns having various lateral confinements is not confirmed yet. In this study scale models with different confinements were tested to investigate characteristics of seismic behaviors. It was confirmed that deformability was increased dramatically with increase of lateral reinforcements.