STUDY OF VIBRATIONS IN A SHORT-SPAN BRIDGE UNDER RESONANCE CONDITIONS CONSIDERING TRAIN-TRACK INTERACTION. INFLUENCE OF IRREGULARITIES ON RESONANCE PHENOMENON

Authors

  • FRAN RIBES-LLARIO UNIVERSITY INSTITUTE FOR MULTIDISCIPLINARY MATHEMATICS, POLYTECHNIC UNIVERSITY OF VALENCIA
  • JOSE LUIS VELARTE-GONZALEZ UNIVERSITY INSTITUTE FOR MULTIDISCIPLINARY MATHEMATICS, POLYTECHNIC UNIVERSITY OF VALENCIA
  • JOSE LUIS PEREZ-GARNES TORRESCAMARA Y CIA DE OBRAS, S.A
  • JULIA IRENE REAL-HERRÁIZ UNIVERSITY INSTITUTE FOR MULTIDISCIPLINARY MATHEMATICS, POLYTECHNIC UNIVERSITY OF VALENCIA

Keywords:

RAILWAYS VIBRATIONS, RESONANCE, CORRUGATION, SQUAT, WHEELFLAT

Abstract

RESONANCE IS A PHENOMENON OF UTMOST IMPORTANCE IN RAILWAYS ENGI-NEERING, LEADING TO VAST DAMAGES BOTH IN TRACK AND VEHICLES. A SHORT-SPAN BRIDGE HAS BEEN MODELED BY MEANS OF A FINITE ELEMENTS METHOD MODEL, CALIBRATED AND VALIDATED WITH REAL DATA, TO STUDY RESONANCE VIBRATIONS INDUCED BY THE PASSAGE OF TRAINS. FURTHERMORE, THE INFLUENCE OF VEHICLE SPEED AND TRACK DAMPING ON THE VIBRATIONS REGISTERED ON THE RAIL, THE SLEEPER AND THE BRIDGE HAS BEEN ASSESSED. DIFFERENT TRACK AND VEHICLE PATHOLOGIES HAVE BEEN PROPOSED AND THEIR EFFECT ON THE RESONANCE OF THE BRIDGE HAS BEEN EVALUATED.

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Published

2016-02-27

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Section

Articles