【摘要】 论述了设置液压传力装置的铁路桥梁随温度变化和制动力作用的墩顶位移对节流量的限定条件，分析确定了不同桥长的节流量范围。通过对实验液压装置的节流特性研究，提出了节流量的测试方法和选用节流阀的推荐旋口度，完成了铁路桥梁采用液压传力装置的技术可行性论证。更多还原

【Abstract】 This paper,on HTD(hydraulic transmision device)equipped railway bridge,espounds the throttlling quantity confined by longitudinal displacements of pier’s top due to varying temperatures and braking force.Based on the reseach on throttle characteristics of an experimental HTD, the paper has advanced the measuring.method for throttlling and recomanded the opening of the throttle valve used in the research,and therefore demonstrated the technical feasibility of HTD’s practical application.更多还原