中文摘要：

高速度的铁路(高速阅读器) 上的 X 风格拱门桥牌是一个种复杂长跨度的结构，并且轨道桥相互作用是必要的保证高速阅读器的安全和光滑。例如在建设中在高速阅读器上与 450 m 的主要跨度拿一座 X 风格钢盒子拱门桥，联合系统的 rail-stringer-cross beam-suspender-pier-foundation 的一个新综合技工模型被建立，采用模仿在磁道和桥之间的纵的抵抗的非线性的春天元素。X风格拱门桥上的连续焊接栏杆( CWR )的传播法律被研究，并且比较学习被执行讨论几个敏感因素的影响，例如温度负担盒子，纵的抵抗模型，纵的抑制条件的计划，拱门肋骨的 introverted 倾斜，墩和桥墩和栏杆扩大设备的地点的僵硬。精明的结果显示纵的抵抗在这种桥上在 CWR 的纵的力量之上有重要影响，当拱门肋骨倾斜有小效果时。而且，拱门肋骨和吊裤带的温度变化应该在计算被考虑。没有在两个上的扩大设备的栏杆的修理纵的适用并且设定，选择抑制系统结束是更合理的。

英文摘要：

X-style arch bridge on high-speed railways （HSR） is one kind of complicated long-span structure, and the track-bridge interaction is essential to ensure the safety and smoothness of HSR. Taking an X-style steel-box arch bridge with a main span of 450 m on HSR under construction for example, a new integrative mechanic model of rail-stringer-cross beam-suspender- pier-foundation coupling system was established, adopting the nonlinear spring element simulating the longitudinal resistance between track and bridge. The transmission law of continuous welded rail （CWR） on the X-style arch bridge was researched, and comparative study was carried out to discuss the influence of several sensitive factors, such as the temperature load case, the longitudinal resistance model, the scheme of longitudinal restraint conditions, the introverted inclination of arch rib, the stiffness of pier and abutment and the location of the rail expansion device. Calculating results indicate that the longitudinal resistance has a significant impact upon the longitudinal forces of CWR on this kind of bridge, while the arch rib＇s inclination has little effect. Besides, temperature variation of arch ribs and suspenders should be taken into account in the calculation. Selecting the restraint system without longitudinally-fixed bearing and setting the rail expansion devices on both ends are more reasonable.