Paper Information

Journal:   CIVIL ENGINEERING INFRASTRUCTURES JOURNAL (CEIJ) (JOURNAL OF FACULTY OF ENGINEERING)   JUNE 2015 , Volume 48 , Number 1; Page(s) 157 To 174.
 
Paper: 

INVESTIGATION OF THE INFLUENCES OF TRACK SUPERSTRUCTURE PARAMETERS ON BALLASTED RAILWAY TRACK DESIGN

 
 
Author(s):  SADEGHI J.*, HASHEMINEZHAD A., ESSMAYIL KABOLI M.
 
* CENTRE OF EXCELLENCE IN RAILWAY TRANSPORTATION, SCHOOL OF RAILWAY ENGINEERING, IRAN UNIVERSITY OF SCIENCE AND TECHNOLOGY, TEHRAN, IRAN
 
Abstract: 

The main design criteria of ballasted railway tracks include rail deflections, rail bending stresses, rail wheel contact stresses, sleeper bending moments and ballast sleeper contact pressures. Various criteria have been defined for the design of ballasted railway tracks due to the various mechanical properties of track components and their complex interaction. Therefore, the railway track design is a difficult and time-consuming process. These complications highlight the need to focus attention on the necessity of a thorough investigation into the effect of the track and rolling stock parameters on the design criteria. In an attempt to overcome this problem, a sensitivity analysis of the main railway track design criteria was conducted in this study. Consequently, the roles of track and rolling stock parameters (including track modulus, sleeper spacing, train speed and axle load) in the design of railway track were investigated for various track design criteria. The research findings provide new and practical suggestions in the analysis and design of ballasted railway tracks.

 
Keyword(s): BALLASTED RAILWAY TRACK, DESIGN APPROACH, SENSITIVITY ANALYSIS, TRACK SUPERSTRUCTURE COMPONENTS
 
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