在桥梁地基与基础之间设计"一种用于桥梁基础的减隔震支座",配合传统的桥墩顶部减震结构,减小地震水平作用力和竖向荷载对桥墩的影响.通过对桥梁基础减隔震支座进行竖向加载和水平拟静力加载试验,得出支座的竖向刚度及支座的荷载-位移滞回曲线,并进行分析.桥梁基础减隔震支座在承受竖向单向轴力的作用下,能够保持稳定,在水平地震作用下,具有良好的耗能能力,能够发挥消能减震作用.%A kind of isolation bearing for bridge foundation is designed between bridge foundation and foundation, which can reduce the influence of horizontal force and vertical load on pier by cooperating with the traditional pier top structure. The vertical stiffness and the load-displacement hysteretic curve of the bearing are obtained through the vertical loading and horizontal quasi-static loading tests of the isolation bearing of bridge foundation. The isolation bearing of bridge foundation can keep stable under the action of vertical unidirectional axial force. Under the action of horizontal earthquake, it has good energy dissipation capacity and can play the role of energy dissipation and seismic reduction.
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