论文部分内容阅读
无碴轨道是一种新型的轨道结构型式,越来越多地应用于高速铁路。目前,无碴轨道结构计算理论还不完善,多采用叠合梁的方法。现采用平面有限元方法,把荷载和轨道结构看成一个系统,对板式无碴轨道在荷载作用下的竖向位移和内力进行了分析,并通过MATLAB编程实现,计算结果符合无碴轨道结构基本原理。
Ballastless track is a new type of track structure, more and more used in high-speed railway. At present, the theory of ballastless track structure calculation is not perfect, and the method of using composite beams is more. Now using the plane finite element method, the load and track structure is regarded as a system. The vertical displacement and internal force of the ballastless track under load are analyzed and programmed by MATLAB. The calculated results accord with the basic structure of ballastless track principle.