Influence of track stiffness on track behaviour under vertical load

The analysis of track behaviour under vertical load is traditionally based on the presumption that the stresses and deformations in track elements can be determined by the application of the Winkler’s Hypothesis. The rail is considered a beam on a continuous elastic foundation. The basis of the hypothesis is a presumption about the proportionality between the load and deflection. However, it is empirically known that the track and track foundation elements in a real environment during the railway exploitation behave neither linearly, nor completely elastically. Moreover, there is a problem with unevenness of the track stiffness along the track. This paper analyses the track stiffness from the aspect of its influence on the quality of the vertical track geometry. The paper analyses optimum stiffness. Optimum stiffness is conditioned by the single stiffness of all the elements of the superstructure and substructure as well as by their mutual compatibility.

• Record URL:
  https://doi.org/10.7307/ptt.v24i5.1176
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03535320
• Authors:
  • Puzavac, Leposava
  • Popovic, Zdenka
  • Lazarevic, Luka
• Publication Date: 2012

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References;
• Pagination: pp 405-412
• Serial:
  • PROMET-Traffic & Transportation
  • Volume: 24
  • Issue Number: 5
  • Publisher: University of Zagreb
  • ISSN: 0353-5320
  • EISSN: 1848-4069
  • Serial URL: https://traffic2.fpz.hr/index.php/PROMTT
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Inspection; Loads; Maintenance of way; Railroad tracks; Roughness; Stiffness
• Identifier Terms: Beam-on-Winkler Foundation
• Uncontrolled Terms: Track geometry; Vertical loads
• Subject Areas: Design; Maintenance and Preservation; Railroads;

Filing Info

• Accession Number: 01469903
• Record Type: Publication
• Files: TRIS
• Created Date: Jan 17 2013 1:49PM