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- Publisher
- SAGE
- Copyright
- © 2013 SAGE Publications
- ISSN
- 1369-4332
- eISSN
- 2048-4011
- DOI
- 10.1260/1369-4332.16.8.1355
- Publisher site
- See Article on Publisher Site
Abstract
A numerical solution for the dynamic response of train-track-bridge coupled system taking into account the influence of soil-structure interaction is studied and verified by field experiments. A three-dimensional vehicle–track-bridge coupling dynamics model is developed, in which the vehicle subsystem, the track subsystem and the bridge subsystem are coupled through wheel-rail interaction and track-bridge interaction, respectively. The soil-structure interaction between the bridge foundation and the soil is simulated by spring stiffness exerted on group-pile foundation. In a case study, the dynamic responses of a high-speed train and a continuous beam bridge are calculated by three models, that is fixed-base model, equivalent-stiffness model and the proposed whole-pile model. The comparison of simulated and experimental results show that soil-structure interaction has significant influence on the lateral dynamic response of the bridge; The whole-pile model is proposed to study the coupled vibration of bridge and vehicle, which gives more reasonable simulation result than the other two models.
Journal
Advances in Structural Engineering – SAGE
Published: Aug 1, 2013