Volume 1, Issue 2 (12-2014)                   IJRARE 2014, 1(2): 1-10 | Back to browse issues page

XML Print

Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Giannakos K. Sensitivity Analysis of Fastenings’ Types on Track's Life-Cycle. IJRARE 2014; 1 (2) :1-10
URL: http://ijrare.iust.ac.ir/article-1-58-en.html
Civil Engineer, PhD, Fellow ASCE, M. TRB AR 050 & 060 Comm., AREMA, fib, Greece
Abstract:   (1407 Views)
During the study for the dimensioning as well as the selection of the individual materials constituting a 
railway track, the ballast and the substructure present residual deformations, directly related to the 
deterioration of the geometry of the track. The slighter the residual deformations and the slower their 
alteration over time is, the better the quality of the track. The actions acting on the track panel are almost 
proportionally dependent on the total track stiffness that is also influenced seriously by the fastening’s and 
total track’s stiffness. This implies that the average stress on ballast underneath the sleepers’ seating surface 
is also influenced by the stiffness. It is imperative to reduce as much as possible the average stresses at the 
sleepers’ seating surface, by increasing track’s stiffness. In the Greek network since the late 1980’s up to 
2000 an extended research program was performed due to cracks on twin-block concrete sleepers (over 60% 
on the total number laid on track). In the frame of this investigation, a new approach for the actions on 
sleepers and the ballast has been developed, by taking into account the real conditions of the line 
(maintenance etc.) which led to the increase of the demands in the specifications for the use of very resilient 
fastenings. In this paper a Sensitivity Analysis is attempted for different types of fastenings: rigid and 
Full-Text [PDF 1237 kb]   (712 Downloads)    
Type of Study: Research | Subject: General

Add your comments about this article : Your username or Email:

Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

© 2024 CC BY-NC 4.0 | International Journal of Railway Research

Designed & Developed by : Yektaweb