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Multi-stage energy dissipation and seismic mitigation bridge support structure
The invention provides a multistage energy dissipation and shock absorption bridge support structure which comprises an upper support, a middle support, a lower support, a limiting assembly and a plane friction assembly, the middle support is located between the upper support and the lower support, the plane friction assembly is located on the lower support, the limiting assembly is arranged on the plane friction assembly and makes contact with the upper support, and the plane friction assembly is located on the lower support. The limiting assembly comprises a limiting plate, a shearing bolt and a shearing pin, and the shearing bolt and the shearing pin sequentially penetrate through the limiting plate and the plane friction assembly and extend to the lower support. According to the support structure, during medium and small earthquakes, primary shock absorption and energy consumption are achieved through the shearing process of the shearing bolts and the shearing pins; when a great earthquake occurs, after the shearing bolt and the shearing pin are sheared off, burrs at the shearing connector of the shearing pin and the shearing bolt rub the plane friction assembly, the friction coefficient of the plane friction assembly is increased, the energy dissipation capacity is improved, and the second-stage damping energy dissipation effect is achieved.
本发明提供一种多级耗能减震桥梁支座结构，包括上支座、中支座、下支座、限位组件、平面摩擦组件，所述中支座位于上支座和下支座之间，所述平面摩擦组件位于下支座上，所述限位组件设置在平面摩擦组件上，且所述限位组件与上支座接触，所述限位组件包括限位板、剪断螺栓和剪断销，所述剪断螺栓和剪断销依次穿过限位板、平面摩擦组件并延伸至下支座上。本发明中的支座结构在中、小地震时，通过剪断螺栓、剪断销的剪断过程，实现一级减震耗能；在大地震时，通过剪断螺栓、剪断销剪断后，剪断销和剪断螺栓剪断接口处的毛刺摩擦平面摩擦组件，平面摩擦组件的摩擦系数增大，耗能能力提高，实现二级减震耗能效果。
Multi-stage energy dissipation and seismic mitigation bridge support structure
The invention provides a multistage energy dissipation and shock absorption bridge support structure which comprises an upper support, a middle support, a lower support, a limiting assembly and a plane friction assembly, the middle support is located between the upper support and the lower support, the plane friction assembly is located on the lower support, the limiting assembly is arranged on the plane friction assembly and makes contact with the upper support, and the plane friction assembly is located on the lower support. The limiting assembly comprises a limiting plate, a shearing bolt and a shearing pin, and the shearing bolt and the shearing pin sequentially penetrate through the limiting plate and the plane friction assembly and extend to the lower support. According to the support structure, during medium and small earthquakes, primary shock absorption and energy consumption are achieved through the shearing process of the shearing bolts and the shearing pins; when a great earthquake occurs, after the shearing bolt and the shearing pin are sheared off, burrs at the shearing connector of the shearing pin and the shearing bolt rub the plane friction assembly, the friction coefficient of the plane friction assembly is increased, the energy dissipation capacity is improved, and the second-stage damping energy dissipation effect is achieved.
本发明提供一种多级耗能减震桥梁支座结构，包括上支座、中支座、下支座、限位组件、平面摩擦组件，所述中支座位于上支座和下支座之间，所述平面摩擦组件位于下支座上，所述限位组件设置在平面摩擦组件上，且所述限位组件与上支座接触，所述限位组件包括限位板、剪断螺栓和剪断销，所述剪断螺栓和剪断销依次穿过限位板、平面摩擦组件并延伸至下支座上。本发明中的支座结构在中、小地震时，通过剪断螺栓、剪断销的剪断过程，实现一级减震耗能；在大地震时，通过剪断螺栓、剪断销剪断后，剪断销和剪断螺栓剪断接口处的毛刺摩擦平面摩擦组件，平面摩擦组件的摩擦系数增大，耗能能力提高，实现二级减震耗能效果。
Multi-stage energy dissipation and seismic mitigation bridge support structure
一种多级耗能减震桥梁支座结构
JIA LIZHI (author) / CAO WENGKAI (author) / LI YAPENG (author) / GU HAILONG (author) / JIANG WENYING (author) / SONG JIANPING (author) / ZHU HAI (author) / FANG LIANG (author)
2024-12-06
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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