设置液压传力装置后制动力作用下的桥梁墩台计算

Abutment Calculation Under Braking Forces for HTD Equipped Railway Bridge

液压传力装置在有效传递制动力的同时，使原来受力明确的桥梁结构成为一超静定时变体系．本文以实验确定的各项参数为基础，介绍了该条件下的动态仿真计算方法和程序验证，并以某大桥的对比设计为例，进行了制动力作用下的桥梁墩顶位移和制动力分配计算。

While effectivly transmitting braking forces with a pair of hydaulic braking force transmission devices(HTD),a railway bridge, formerly definite structure under the action of braking force,becomes an indeterminate time varying system. Based on the parameters determined by experiments,a dynamic simulation method and its verification are discussed.An example to calculate the displacement of peir's top pionts and distribution of braking force is also given according to a contrast design of a built railway bridge.