双向压弯钢筋混凝土柱的抗震性能

The Seismic Behavior of Bi -- directional Compression -- Flexure Reinforced Concrete Columns

通过对十四根框架柱在斜向反复周期荷载下的恢复力特性试验，研究了荷载角、轴压比、配筋率及节点区纵筋粘结滑移对构件抗震性能的影响。建立了构件斜方向的截面恢复力模型和纵筋粘结滑移恢复力模型。进行了理论计算，并与实测结果进行了比较，结果表明两者吻合良好。

in order to investigate the seismic behavior of reinforced concrete columns under bi- directional loadings, fourteen specimen were tested. The effects of the loading angle, the ratio of axialforce to compressive strength, the percentage of ties and the bond slippage of longitudinal reinforcementsin the joints, etc. on the seismic behavior and restoring force characteristics of the specimen werediscussed. The restoring force model of the oblique section of the member and the restoring force modelof the bond slippage of reinforcements were established. The load -- deflection hysteresis loops of memberswere calculated and compared with the measured results and they are shown in good agreement.