铁道标准设计2016，Vol.60Issue(8)：6-11,12,7.
桥上纵连板式无砟轨道挠曲力计算分析
Analysis and Calculation of Deflection Force of Longitudinally Connected Ballastless Track on Bridge
摘要
Abstract
According to the structural characteristics of longitudinally connected ballastless track on bridge, this paper calculates the deflection force under temperature load, analyses the influence of train load action length and live load mode to bridge on the deflection force and studies beam-track interaction rules under deflection force of longitudinally connected ballastless track on bridges based on the model established with finite element method for the calculation of deflection force of longitudinally connected ballastless track on bridges. The results show that the additional longitudinal forces of rail caused by the flexure deformation of bridges are relatively small; the additional longitudinal forces of rail on simple supported beam bridge are no more than 21. 6 kN;the additional longitudinal forces of rail on continuous bridge are no more than 24. 0kN. In the stress calculation of components, the expansion and contraction force or deflection force should be selected according to the specific component. Due to the big differences with ballast track and unit slab non-ballast track on bridges, it is also needed to find the most unfavorable train loading mode of deflection force according to different test components. It is suggested that loading is conducted on the active side to the bridge.关键词
纵连板式无砟轨道/挠曲力/梁轨相互作用/简支梁桥/连续梁桥Key words
Longitudinally connected ballastless track/Deflection force/Beam-track interaction/Simple supported beam bridge/Continuous beam bridge分类
交通工程引用本文复制引用
邢梦婷,王平..桥上纵连板式无砟轨道挠曲力计算分析[J].铁道标准设计,2016,60(8):6-11,12,7.基金项目
国家自然科学基金委高铁联合基金重点项目(U1234201) （U1234201）
