【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;计算结果准确,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 is established to calculate the additional longitudinal forces of the integrated system consisting of the track,beams,abutments,piers and foundation;the program to calculate CWR on the curvilinear frame bridge is programmed according to the rule "set-in-right-position";the additional expansion force,bending force and rail-breaking strength of the No.2 Banqi Bridge along Railway Nanning-Kunming are calculated.The calculation results proved to accurate and embodied the interaction principle of the beam and the CWR on bridge.更多还原