Influence of Local Deck Vibrations on the Evaluation of the Maximum Acceleration of a Steel-Concrete Composite Bridge for a High-Speed Railway

European design standards have established an upper limit on the deck acceleration of the high-speed railway bridges. However, the influence of local vibrations of the deck members is rarely considered when modelling the vibrational responses of bridges. To evaluate how the inclusion of local deck vibrations might influence predictions of the maximum acceleration, detailed measurements were taken from a steel-concrete composite box-girder bridge on the Italian high-speed railway, and a numerical model of the system was developed. Deck vibrations were measured during high-speed train passages at the maximum train speed of 374 km/h, and compared against a numerical model of the vehicle-bridge system. This analysis revealed that the maximum deck acceleration is 1.3 times greater than the acceleration of the bridge girders, because of the sixth- and seventh-order resonance between the deck’s local vibration modes and the structure with a train running at high speeds over 300 km/h. Moreover, when considering local deck vibrations in the numerical model, we found that the interaction between transient local rail deformations and the vehicle travelling on the rails can increase the acceleration of the deck through resonance.

• Record URL:
  https://doi.org/10.1016/j.engstruct.2019.109736
• Record URL:
  http://www.sciencedirect.com/science/article/pii/S0141029618342627
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/01410296
• Supplemental Notes:
  • © 2019 Kodai Matsuoka et al. Published by Elsevier Ltd. Abstract reprinted with permission of Elsevier.
• Authors:
  • Matsuoka, Kodai
  • Collina, Andrea
  • Somaschini, Claudio
  • 0000-0002-3762-041X
  • Sogabe, Masamichi
• Publication Date: 2019-12-1

Language

• English

Media Info

• Media Type: Web
• Features: Appendices; Figures; Illustrations; References; Tables;
• Serial:
  • Engineering Structures
  • Volume: 200
  • Issue Number: 0
  • Publisher: Elsevier
  • ISSN: 0141-0296
  • Serial URL: http://www.sciencedirect.com/science/journal/01410296

Subject/Index Terms

• TRT Terms: Box girder bridges; Bridge decks; Bridge members; High speed rail; Railroad bridges; Resonance; Vibration
• Geographic Terms: Italy
• Subject Areas: Bridges and other structures; Maintenance and Preservation; Railroads;

Filing Info

• Accession Number: 01722348
• Record Type: Publication
• Files: TRIS
• Created Date: Nov 14 2019 9:32AM