小半径曲线地段桥上无缝线路的设计研究

Design and Study of Continuous Welded Rail on Bridge in the Small Radius Curve Section

研究目的:解决小半径曲线地段桥上无缝线路设计的难题。研究结论:小半径曲线地段桥上无缝线路设计应重点从提高线路横向阻力、降低桥上无缝线路钢轨附加力、适当提高设计锁定轨温等几方面考虑。

Research purposes： To solve the problems on designing continuous welded rail on bridge in the small radius curve section. Research conclusions：When designing continuous welded rail on bridge in the small radius curve section, these factors should be especially considered ： increasing lateral ballast resistance, reducing additional forces of the continuous welded rail on bridge, and properly increasing the design stress - free temperature of rail.