Paper Title:
The Calculation of the Supporting Stress of Track Plate in Ballastless High-Speed Rail Structure
  Abstract

The slab track is a new sort of track structure, which has been widely used in high-speed rail and special line for passenger. However, the ballastless track structure design theory is still not perfect and can not meet the requirements of current high-speed rail and passenger line ballastless track. In this paper, composite beam method is used to calculate the deflection of the track plate and in this way the vertical supporting stress distribution of the track plate can be gotten which set a basis for the follow-up study of the dynamic stress distribution in the subgrade. Slab track plate’s bearing stress under moving load is analyzed through Matlab program. By calculation and analysis, it is found that the deflection of track plate and the rail in the double-point-supported finite beam model refers to the rate of spring coefficient of the fastener and the mortar.The supporting stress of the rail plate is inversely proportional to the supporting stress of the rail. The two boundary conditions of that model ,namely, setting the end of the model in the seams of the track plate or not , have little effect on the results. We can use the supporting stress of the track plates on state 1to get the distribution of the supporting stress in the track plate when bogies pass. Also, when the dynamic load magnification factor is 1.2, the track plate supporting stress of CRST I & CRST II-plate non-ballasted structure is around 40kPa.

  Info
Periodical
Chapter
Chapter 1: Road and Railway Engineering
Edited by
Shucai Li
Pages
3-9
DOI
10.4028/www.scientific.net/AMM.97-98.3
Citation
Y. Wang, Q. M. Gong, M. F. Li, "The Calculation of the Supporting Stress of Track Plate in Ballastless High-Speed Rail Structure", Applied Mechanics and Materials, Vols. 97-98, pp. 3-9, 2011
Online since
September 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Hao Sheng Gu, Da Yu Zhu
Abstract:This paper attempts to reveal the flexural behaviors of concrete slab reinforced with GFRP bars. Through flexural test, the deformation...
567
Authors: Yu Xu Zhang
Chapter 2: Structural and New Functional Materials
Abstract:The reinforced RC girder with external prestress is applied more and more widely. Reinforcement of the girder is influenced by various...
374
Authors: Zhe An Lu, Xin Jin, Xiao Chun Fan
Chapter 3: Civil Engineering
Abstract:The stress behavior of the reinforced inorganic polymer concrete(IPC) beam was discussed, included the load-deflection curve, craze load and...
891
Authors: Mian Tang, Yu Cai Ning, Xia Xu, Xu Hui He
Chapter 9: Bridge Engineering
Abstract:Abstract:Based on the deflection theory and the virtual displacement principle, the stress state of different components of the self-anchored...
2333