Influence of track stiffness on track behaviour under vertical load
Article (Published version)
MetadataShow full item record
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.
Keywords:railways / track / track stiffness / track geometry deterioration / maintenance
Source:Promet-Traffic & Transportation, 2012, 24, 5, 405-412
- University of Zagreb, Faculty of Transport and Traffic Sciences
Showing items related by title, author, creator and subject.
Određivanje kvaliteta geometrije koloseka primenom fraktalne analize mernih podataka / Assessment of track geometry quality using fractal analysis of measured data Lazarević, Luka (Универзитет у Београду, Грађевински факултет, 2016)
Track stiffness and the vertical track geometry deterioration modeling / Krutost šinske podloge i modeliranje propadanja vertikalne geometrije koloseka Milosavljević, Leposava; Popović, Zdenka; Lazarević, Luka (Univerzitet u Nišu, Niš, 2012)
Lazarević, Luka; Vučković, Dejan; Popović, Zdenka (SAGE Publications Ltd, 2016)