为研究端承式钢管混凝土叠合柱柱脚节点的抗震性能，本文设计了考虑轴压比和锚筋配筋率两个参数的5个试件进行拟静力试验，探讨了柱脚节点的抗震破坏模式，分析了滞回曲线、延性、刚度退化、强度退化和耗能能力等抗震性能指标的演化规律。试验结果表明：5个试件最终破坏形态均为压弯破坏；轴压比对柱脚节点抗震性能指标影响显著，而在界限破坏点附近时锚筋配筋率对刚度退化和强度退化影响不明显；各试件滞回曲线饱满，耗能能力强，承载能力稳定，延性良好，屈服后刚度下降缓慢，表明端承式钢管混凝土叠合柱柱脚节点具有良好的抗震性能，满足抗震设计的要求；弹性阶段后期，钢管受拉时端承式钢管混凝土叠合柱柱脚截面的应变分布偏离平截面假定，该现象可通过提高锚筋配筋率得到改善。

To investigate the seismic performance of end-bearing steel tube-reinforced concrete column base, five specimens were designed for pseudo-static test, considering the differences of axial compression ratio and anchor reinforcement ratio. The seismic failure mode of column base was investigated, and the evolution law of seismic performance indexes was analyzed, such as hysteresis curves, ductility, stiffness degradation, strength degradation and energy dissipation capacity. The test results show that five specimens all fail in bending failure. The axial compression ratio has a significant impact on seismic performance indexes of column base, but the anchor reinforcement ratio has no obvious influence on stiffness degradation or strength degradation of column base near the balanced failure point. Each specimen has a full hysteresis curve, good energy dissipation capacity, stable bearing capacity and good ductility, and the stiffness decreases slowly after yielding. This demonstrates the excellent seismic performance of end-bearing steel tube-reinforced concrete column base, meeting the requirements of seismic design. In the late elastic stage, the strain distribution of end-bearing steel tube-reinforced concrete column base section deviates from the plane-section assumption when the steel tube is in tension. This phenomenon can be improved by increasing the anchor reinforcement ratio.