摘要
根据梁轨相互作用力原理和橡胶支座的特性；提出了橡胶支座矫上无缝线路的伸缩附加力、挠曲附加力，断轨力及支应反力的计算方法；并通过算例对橡胶支座梁与固定－活动支座简支梁的计算结果进行比较，为桥上无缝线路和桥梁墩台设计提供了理论计算依据。
Based on the theory of the bridge/rail forces and the characteristics of thebridge rubber support,the computation methods of additional expansive force,additionalflexure force,rail rupture force and bearing reaction of the jointless track on the rubber sup-port bridge are presented.Besides,the influence of the rubber support on bridge/rail forceis further analvsed.From the example,the computation results above are compared withthose of the fixed-slided support.The theoretical computation is thus provided for thejointless and pier/abutment design.
关键词
铁路桥
无缝线路轨道
橡胶支座
梁轨相互作用力
railway bridge,jointless tracks, rubber support,bridge/rail interaction forces
