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对三个不同参数螺栓连接的多高层钢结构装配节点的抗震性能进行试验和有限元分析,获得以梁端荷载-位移表征的滞回曲线、骨架曲线、延性性能、转动能力、刚度退化曲线等,分析了法兰螺栓和盖板螺栓对试件受力性能的影响。试验和有限元分析结果表明:通过调整盖板螺栓数量和规格,可以实现梁柱刚性连接和变刚度连接,变刚度连接时,可实现多遇地震作用下不滑移,设防地震和罕遇地震作用下利用盖板与梁翼缘相对滑移耗散地震能量;通过分析螺栓接触面的滑移,认为盖板与梁翼缘滑移构造提高了梁端的变形能力,延性以及耗能能力,实现了摩擦耗能,可以用于抗震设防区结构中。
The seismic performance of three high-rise steel structures with bolted joints was tested and the finite element analysis was carried out. The hysteresis curve, the skeleton curve, the ductility, the rotation capacity and the stiffness degradation curve The influence of the flange bolt and the cover bolt on the force performance of the specimen was analyzed. The results of the test and the finite element analysis show that the rigid connection and the variable stiffness connection can be achieved by adjusting the number and specifications of the bolts on the cover plate. When the variable stiffness is connected, it can realize the non-slip under fortified earthquakes, fortified earthquakes and rare earthquakes Under the action of slip, the seismic energy is dissipated by the relative slip between the cover and the beam flange. By analyzing the slip of the bolt contact surface, it is considered that the slippage between the cover and the beam flange improves the deformation capacity, ductility and energy dissipation capacity of the beam end and realizes the frictional energy dissipation , Can be used in earthquake-resistant zone structure.