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Tehnika
2019, vol. 74, iss. 1, pp. 39-44
article language: Serbian
document type: Professional Paper
published on: 07/03/2019
doi: 10.5937/tehnika1901039P
Creative Commons License 4.0
Influence of climate conditions on stresses in CWR on the bridges in Serbia
University of Belgrade, Faculty of Civil Engineering

e-mail: zdenka@grf.bg.ac.rs

Project

Research of technical-technological, staff and organizational capacity of Serbian Railways, from the viewpoint of current and future European Union requirements (MESTD - 36012)

Abstract

Vehicle/track/bridge interaction causes additional stresses in CWR on the bridge, which include stress in rails due to temperature changes in the bridge deck, vertical bending of bridge deck, and braking/acceleration of railway vehicles on the bridge deck. Critical analysis of additional tensile stresses in CWR on the bridge using Smith diagram was performed and presented in this paper. Furthermore, results of rail temperature measuring at several monitoring locations in Serbia were presented. The influence of the local climate conditions and neutral rail temperature on the temperature stress in CWR was analysed. The paper points out that the prescribed values of additional stresses in CWR have to include influence of real local climate conditions on track stability on the bridge.

Keywords

railway; bridge; interaction vehicle/track/bridge; temperature; stress

References

*** (2001) UIC: Code 774-3: Track/bridge interaction: Recommendations for calculations. Paris
*** (2003) DIN: Fachtbericht 101, Einwirkungen auf Bruecken. Deutschland
*** (2003) CEN/TC 250: EN 1991-2:2003, eurocode 1: Actions on structures - part 2: Traffic loads on bridges. Brussel
Direkcija za železnice (2016) Pravilnik o tehničkim uslovima i održavanju gornjeg stroja železničkih pruga. Službeni glasnik RS, broj 39
Freystein, H. (2010) Interaktion Gleis/Brücke: Stand der Technik und Beispiele. Stahlbau, 79(3): 220-231
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Zakeri, J.A., Barati, M., Mohammadzadeh, S. (2017) New Definition of Neutral Temperature in Continuous Welded Railway Track Curves. Periodica Polytechnica Civil Engineering