Influence of track stiffness on track behaviour under vertical load
Апстракт
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.
Кључне речи:
railways / track / track stiffness / track geometry deterioration / maintenanceИзвор:
Promet-Traffic & Transportation, 2012, 24, 5, 405-412Издавач:
- University of Zagreb, Faculty of Transport and Traffic Sciences
Финансирање / пројекти:
- Истраживање техничко-технолошке, кадровске и организационе оспособљености Железница Србије са аспекта садашњих и будућих захтева Европске Уније (RS-MESTD-Technological Development (TD or TR)-36012)
Институција/група
GraFarTY - JOUR AU - Puzavac, Leposava AU - Popović, Zdenka AU - Lazarević, Luka PY - 2012 UR - https://grafar.grf.bg.ac.rs/handle/123456789/438 AB - 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. PB - University of Zagreb, Faculty of Transport and Traffic Sciences T2 - Promet-Traffic & Transportation T1 - Influence of track stiffness on track behaviour under vertical load EP - 412 IS - 5 SP - 405 VL - 24 UR - https://hdl.handle.net/21.15107/rcub_grafar_438 ER -
@article{ author = "Puzavac, Leposava and Popović, Zdenka and Lazarević, Luka", year = "2012", abstract = "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.", publisher = "University of Zagreb, Faculty of Transport and Traffic Sciences", journal = "Promet-Traffic & Transportation", title = "Influence of track stiffness on track behaviour under vertical load", pages = "412-405", number = "5", volume = "24", url = "https://hdl.handle.net/21.15107/rcub_grafar_438" }
Puzavac, L., Popović, Z.,& Lazarević, L.. (2012). Influence of track stiffness on track behaviour under vertical load. in Promet-Traffic & Transportation University of Zagreb, Faculty of Transport and Traffic Sciences., 24(5), 405-412. https://hdl.handle.net/21.15107/rcub_grafar_438
Puzavac L, Popović Z, Lazarević L. Influence of track stiffness on track behaviour under vertical load. in Promet-Traffic & Transportation. 2012;24(5):405-412. https://hdl.handle.net/21.15107/rcub_grafar_438 .
Puzavac, Leposava, Popović, Zdenka, Lazarević, Luka, "Influence of track stiffness on track behaviour under vertical load" in Promet-Traffic & Transportation, 24, no. 5 (2012):405-412, https://hdl.handle.net/21.15107/rcub_grafar_438 .
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