高桥墩的稳定性计算

Calculating on stability of high pier

通过对桥梁高桥墩边界条件的分析,建立了以板式橡胶支座为弹性支承的压杆计算模型,导出了在该计算模型下结构临界荷载的计算公式,通过对广东北江特大桥主墩进行稳定性分析和墩身参数分析,得到了桥墩高度与稳定系数的对应关系,对今后类似的设计工作有一定的参考作用。

Through analyzes the limit situation of high pier, the paper establishes rubber bearing plate in elastic support for the calculation model of the bar, derives calculating formula of structure＇s limit loading ability under the mode. Through analysis on stability and pier body＇s parameter of Beijiang super huge bridge in Guangdong, it derives relationship between height and stability of the pier, and thus provides guidance for such kind of construction.