Dynamic Analysis Of High-speed Railway Bridges Applying Bridge-vehicle Interaction
| Submitted | 2021-07-16 |
| Last Update | 2022-06-27 |
| Title | Dynamic Analysis Of High-speed Railway Bridges Applying Bridge-vehicle Interaction |
| Author(s) | Author #1 Author title:Doctor Name: Abdallah Salama Org: Department of Structural Engineering, Faculty of Engineering, Zagazig University Country: Egypt Email: eng_abdullah203@yahoo.com Author #2 Author title:Professor Name: Atef Eraky Org: Department of Structural Engineering, Faculty of Engineering, Zagazig University Country: Egypt Email: atef_eraky@yahoo.com Author #3 Author title:Engineer Name: Muhammed Yahya Org: Department of Structural Engineering, Faculty of Engineering, Zagazig University Country: Egypt Email: myehia@zu.edu.eg Author #4 Author title:Professor Name: Rania Samir Org: Department of Structural Engineering, Faculty of Engineering, Zagazig University Country: Egypt Email: raniasamir02@gmail.com |
| Other Author(s) | |
| Contact Author | Author #1 Alt Email: muhammedyahya2014@gmail.com Telephone: |
| Keywords | High-speed train, Railway bridge, Train-bridge interaction, Dynamic analysis, Resonance. |
| Abstract | The problem of train passage over bridge is an interaction problem between two systems; the bridge system including track and the passing train system. To consider the bridge-vehicle interaction, a non-linear problem shall be solved because the response of each system depends on the response of the other system simultaneously. Two ways of solving the interaction problem are applied in a FE numerical domain, the first way treats the two systems as one whole system which dynamically updates its stiffness matrix, and the second way considers the transferred forces at contact points between two decoupled systems with constraint equations. The bridge system is modeled as 2D Bernoulli beams and the track as a single continuous non-viscous elastic layer beneath rails with irregularities, and the train system is modeled as separate moving systems with each system having two degrees of freedom (DOFs) and consisting of a lumped mass supported by one layer of suspension system that comprises a spring-damper unit. The parametric study on a non-prismatic continuous prestressed concrete bridge using a high-speed train shows that the interaction models give similar response to moving load model except at resonance speeds for which the latter gives conservative values and higher resonance speeds |
| Paper |  6080.pdf (600KB) |