【摘要】 建立以轨道、桥梁、支座、墩台和基础为整体结构的附加纵向力计算有限元模型,依据“对号入座”法则编制了计算曲线刚构桥上无缝线路的程序。计算了南昆线上板其二号大桥附加伸缩力、挠曲力和断轨力,计算结果符合实际,体现桥上无缝线路梁轨相互作用原理。更多还原

【Abstract】 The finite element model was established which was used to calculate additional longitudinal forces with the track,beams,bearings,pier,abutments and foundation as an integrated system,and programs were made to calculate the jointless track on rigid frame bridge with the"set-in-right-position"rule.The additional contractility,deflection force and rail breaking force of No.2 Banqi bridge on Nanning-Kunming line were calculated.The calculation results accord with practice and interaction principle of beam and rail of jointless track on bridge was showed.更多还原