FiniteElement Analysis of CRTS II Double Block Ballast-less Track

Qingzhong Duan

Chongqing Jiaotong University, Chongqing, 400074, China

Abstract: With the improvement of the safety, stability and comfort of modern railway traffic, ballastless track system has been widely accepted by the industry and has been widely used in China. In order to provide a deeper understanding of ballastless track and provide a solid foundation for further research, it is necessary to reasonably design the ballastless track structure and its construction. In this paper, the stress response and displacement response of the CRTS II double block ballastless track concrete track slab and the base plate on the subgrade under the action of the track ｌｏａｄ on the subgrade are emphatically analyzed by the numerical simulation software ANSYS. ｓｅｌｅｃｔ reasonable finite element type and calculation parameters, and establish foundation plate model, track slab model and sleeper model, rail and fastener model. The stress and strain results of the CRTS II type double block ballastless track on the subgrade under the ｌｏａｄ of the train are obtained by analyzing the action mode and the action position of the train ｌｏａｄ.

Keywords: Ballastless track; Concrete; Track board; Finite element analysis