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新型全螺栓单边梁柱节点连接方式能够方便地将方形钢管柱与H形钢梁进行连接,具有现场安装方便,造价经济,变形能力和抗震性能均较好的优点,是轻钢结构中较为理想的连接方式。进行了两个柱壁厚度不同的方形钢管柱分别与H形钢梁组合节点的低周反复加载试验,研究了柱壁厚度对此类节点破坏形态以及抗震性能的影响,分析了节点的受力全过程,以及荷载-位移滞回曲线、骨架曲线、刚度退化和耗能能力等抗震性能指标;同时结合现行规范,评价节点的刚性和延性。研究表明,柱壁厚度对节点承载力、刚度和耗能性能均有一定影响,新型连接方式的方形钢管柱节点属于半刚性全强度连接节点,具有良好的抗震性能和安全可靠的连接,延性较好。
The new full-bolt unilateral beam-column node connection method can conveniently connect the square steel column with the H-shaped steel beam, and has the advantages of convenient installation on site, economical cost, good deformation capacity and seismic performance, and is relatively light steel structure The ideal way to connect. The low-cycle repeated loading test was carried out for the combination of two square column columns with different column wall thicknesses and the H-shaped beam columns respectively. The influence of column wall thickness on the failure morphology and seismic performance of such nodes was studied. The whole process, and the seismic performance indexes such as load-displacement hysteresis curve, skeleton curve, stiffness degradation and energy dissipation capacity. At the same time, the stiffness and ductility of the joints are evaluated in combination with the current codes. The results show that the thickness of the column wall has some influence on the bearing capacity, stiffness and energy dissipation of the joints. The new type of connection is a semi-rigid full strength joint with good seismic performance, safe and reliable connection, ductility it is good.