Monitoring of the thermo-mechanical behaviour of a ballastless track structure

Monitoring of the thermo-mechanical behaviour of a ballastless track structure

Xavier Chapeleau Alexandre Brisson Louis-Marie Cottineau Thierry Sedran Séverine Kolodziejski Caroline Masson Joël Cailliau 

LUNAM Université, IFSTTAR, Route de Bouaye, 44340 Bouguenais, France

CEF – Railway Testing Center, rue Fresnel, 59494 Petite-Forêt, France

ALSTOM transport, rue Albert Dhalenne, 93482 Saint-Ouen, France

RAILTECH International, ZI du Bas Pré, 59590 Raisme, France

Corresponding Author Email: 
xavier.chapeleau@ifsttar.fr, alexandre.brisson@c-e-f.fr, louis-marie.cottineau@ifsttar.fr, thierry.sedran@ifsttar.fr, severine.kolodziejski@c-e-f.fr, caroline.masson@transport.alstom.com
Page: 
37-51
|
DOI: 
https://doi.org/10.3166/I2M.15.1-2.37-51
Received: 
N/A
| |
Accepted: 
N/A
| | Citation
Abstract: 

At the beginning of 2013, a new ballastless track structure (designed and tested in laboratory) based on concrete slabs was built in France. Since December 2013, several trains circulate every day and a monitoring of some sections of the structure is performed continuously. Data collected are compared to the results of finite element simulations used to design the structure in order to verify that the experimental structure can be operated safely. In this paper, a focus is made on the mechanical behavior of the track slabs with thermal gradients.

Keywords: 

instrumentation, ballastless track structure, thermal gradient.

1. Introduction
2. Description du comportement mécanique de la structure sous l’effet de gradient thermique
3. Instrumentation d’une section de la voie ferroviaire sur dalles béton pour la mise en évidence des effets gradients thermiques sur le comportement mécanique de la structure
4. Résultats et discussions
5. Conclusions
Remerciements

Les auteurs tiennent à remercier vivement le ministère français de l’Industrie pour son soutien financier dans le programme de FUI (n° du projet 072906053 ; acronyme : NBT New Ballastless Track). Leurs remerciements vont également aux partenaires industriels du programme NBT : Railtech, Alstom, CEF, RFF, Vossloh pour la confiance et le soutien à leurs travaux de recherche.

  References

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