采用自攻螺钉对胶合木梁柱节点进行横纹加强可有效传递木材的横纹拉应力和顺纹剪应力,从而延缓木材开裂、提高节点性能。为了研究自攻螺钉的布置间距、直径和个数等参数对加强节点受力性能的影响,对4组采用不同布置间距、直径和个数的自攻螺钉加强胶合木螺栓连接梁柱节点进行单调和低周往复加载试验,得到各组节点的刚度、延性、承载力、破坏模式和抗震性能。结果表明:自攻螺钉个数增加、直径增大,节点的承载力、破坏转角、延性系数以及节点总耗能增大;自攻螺钉布置间距的变化对节点在单调荷载作用下的承载力和延性系数无明显影响;而节点在往复荷载作用下时,随着自攻螺钉布置间距的减小,节点承载力和总耗能降低。 Adopting self-tapping screws to reinforce the horizontal stripes of the glulam beam-column joints can effectively transmit the transverse and transverse grain shear stress of the wood, thus delaying the cracking of the wood and improving the node performance. In order to study the effect of parameters such as arrangement pitch, diameter and number of self-tapping screws on the mechanical behavior of strengthened joints, four groups of self-tapping screws with different arrangement pitch, diameter and number were used to reinforce the joints And low cycle reciprocating loading test, the stiffness, ductility, bearing capacity, failure mode and seismic performance of each group of nodes were obtained. The results show that the number of self-tapping screws increases, the diameter increases, the bearing capacity, failure angle, ductility coefficient and total energy consumption increase. The variation of self-tapping screw spacing on the bearing capacity under the monotonic load and The ductility coefficient has no obvious effect; while the node under the reciprocating load, with the reduction of pitch of the self-tapping screw arrangement, the bearing capacity and total energy consumption of the node decrease.