Non-linear vehicle-bridge-wind interaction model for running safety assessment of high-speed trains over a high-pier viaduct

Journal ar
Journal of Sound and Vibration
  • Volumen: 419
  • Fecha: 14 April 2018
  • Páginas: 63-89
  • ISSN: 10958568 0022460X
  • Source Type: Journal
  • DOI: 10.1016/j.jsv.2017.12.038
  • Document Type: Article
  • Publisher: Academic Press
© 2018 Elsevier Ltd In order to properly study the high-speed traffic safety on a high-pier viaduct subject to episodes of lateral turbulent winds, an efficient dynamic interaction train-bridge-wind model has been developed and experimentally validated. This model considers the full wheel and rail profiles, the friction between these two bodies in contact, and the piers P-Delta effect. The model has been used to determine the critical train and wind velocities from which the trains cannot travel safely over the O'Eixo Bridge. The dynamic simulations carried out and the results obtained in the time domain show that traffic safety rates exceed the allowed limits for turbulent winds with mean velocities at the deck higher than 25 m/s.

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