In order to study the impact of the defect of the Grout-filled lap joint on the seismic performance of the prefabricated concrete column, the static test of the concrete column with four axial compression ratio of 0.3 is designed. One of the pillars is good for the Grout-filled lap without any defect, and the other three columns have different size defects in the center of the three steel bars. The experimental results show that the hysteresis curve of the non-defective components is full, the stiffness degradation is slow, the energy dissipation and ductility are good. The peak difference between the positive and negative direction of the defect member's hysteresis curve increases with the increase of the defect, and the squeezing effect becomes more obvious with the defect increase. With the increase of defects, the bearing capacity of the component decreases gradually, and the bearing capacity of the defect side is decreased obviously, resulting in uneven stress distribution. Ductility decreases with increasing plasma anchor defects, the ductility of the largest defect column is only 76％ of the standard parts, but smaller defects incremental effect on ductility is relatively small, the displacement ductility coefficient of three pillars with different defect size is less than 10％ The stiffness degradation rate is proportional to the size of the slurry anchor defect, and the stiffness and degradation rate tend to be consistent when the load is larger. The defect has a great influence on the energy dissipation capacity of the component, and the maximum defect component can consume only 65％ of the defective components.%为研究浆锚搭接连接的缺陷对装配式混凝土柱抗震性能的影响,设计了4根轴压比为0.3的浆锚搭接混凝土柱,进行拟静力试验.其中有一根柱为浆锚良好无任何缺陷的构件,其余3根柱在单侧3根钢筋中部设置不同大小的缺陷.试验结果表明,无缺陷构件的滞回曲线较为饱满,刚度退化较慢,耗能及延性性能良好.缺陷构件滞回曲线的正负方向峰值差异随缺陷增大而增大,捏缩效应随缺陷增大更为明显.随缺陷的增大,构件承载力逐渐降低,缺陷侧承载力下降明显,造成应力分布不均.延性随浆锚缺陷的增加不断减小,最大缺陷柱的延性只有标准件的76％,但较小缺陷增量对延性影响相对较小,3根不同缺陷大小的柱位移延性系数相差不到10％.刚度退化速率与浆锚缺陷的大小成正比,当荷载较大时刚度及退化速度趋于一致.缺陷对构件耗能能力影响较大,最大缺陷构件耗能仅为无缺陷构件的65％.
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