Experiment on Anti-seismic Performance of Reinforced Concrete Columns with Clip Reinforcement

Aimed at the problems of great construction difficulty and complicated reinforcement of reinforced concrete structure, a new S-shaped clip reinforcement was developed as replacement of stirrups in reinforced concrete columns while retaining the equivalent anti-seismic performance. The tests of the reinforced concrete columns with conventional reinforcement and the S-shaped clip reinforcement replaced stirrups were carried out. Two group specimens with size of 700 mmiA700 mm having different ratios of reinforcement and replacement of clip reinforcement were subjected to the low-cycle reversed loading test. The test results show bearing capacities under two reinforcement patterns are nearly equivalent. The clip reinforcement could limit longitudinal buckling reinforcement and could restrain core concrete. Hysteretic curves of column tend to perfection. Compared with conventional reinforcement patterns, S-shaped clip reinforcement strengthens energy dissipation ability and anti-seismic performance of member.