预制混凝土管柱柱脚节点抗震性能试验研究

RESEARCH AND ANALYSIS OF ASEISMIC PROPERTY OF PRECAST CONCRETE PIPE COLUMN FOOTING JOINT

通过对柱脚节点的试验研究,对比分析预制混凝土管柱与普通混凝土柱柱脚节点的破坏特征、承载能力和延性、滞回特性和刚度退化等抗震性能指标。研究表明:预制混凝土管柱在抗震过程中有较好的抗剪性能和耗能能力,抗震性能可靠,具有替代普通混凝土柱的能力。

Through the experiments on the column footing joint,such performance indexes as failure characteristic,bearing capacity and ductility,hysteresis characteristic and rigidity degradation of the column footing joints were compared between concrete-filled prefabricated concrete tube column and ordinary concrete columns. The investigation showed that concrete-filled prefabricated concrete tube column had good shear strength and energy dissipation capacity in the seismic process,and had reliable seismic performance and the ability to replace ordinary concrete columns.