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滑动铰节点是用于抗弯钢架梁端的一种柔性连接。它是一种非对称的摩擦连接,能量通过梁下翼缘的开槽螺栓连接滑动耗散。摩阻力和荷载-位移滞回曲线的重复性依赖于所用垫片的类型。迄今为止,已对结构中使用的黄铜和低碳钢垫片进行了研究。对使用不同硬度钢垫板的滑移件进行相关试验,试验材料包括低碳钢、高强调质钢和耐磨钢。负担垫片滑动的梁和楔子的材料选用G-300低碳钢。模拟地震作用对试样进行动态测试。不同试样的所有位移曲线中,硬度最大的耐磨钢滑动特性最稳定、材料磨损最小、摩阻力最大。与黄铜相比,高强钢能够随时使用、成本较低、较易获得且不易腐蚀,这使得高强度钢成为更好的选择。
Sliding hinge joints are a flexible connection to the beam end of a flexural steel frame. It is an asymmetrical frictional connection that dissipates energy by sliding through a slotted bolt on the lower flange of the beam. The repeatability of friction and load-displacement hysteresis curves depends on the type of gasket used. To date, structural brass and mild steel gaskets have been studied. Relevant tests are carried out on slippage members with different hardness steel backing plates. The test materials include mild steel, HSS and wear resistant steel. G-300 mild steel is used as the material for the load-bearing sliding beams and wedges. Simulate the earthquake action on the sample dynamic test. Among all the displacement curves of different samples, the wear resistant steel with the highest hardness has the most stable sliding characteristics with the least material wear and the largest frictional resistance. Compared with brass, high strength steel can be used at any time, low cost, easy to get and not easy to corrosion, which makes high strength steel to become a better choice.