Analysis of Dynamic Response of Simply-Supported Girder Bridge in High-Speed Railway Based on the Moving Rows Mass-Spring Model

Jin Feng Wu; Zhi Jun Zhang; Xiao Zhen Li

doi:10.4028/www.scientific.net/AMM.193-194.919

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 193-194Analysis of Dynamic Response of Simply-Supported...

Analysis of Dynamic Response of Simply-Supported Girder Bridge in High-Speed Railway Based on the Moving Rows Mass-Spring Model

Abstract:

The vibration theory of beam and D’Alembert principle are used to set up vehicle-bridge system for a simply-supported girder bridge under the moving rows mass-spring model. The kinematic equations of vehicle and bridge are derived separately. And with the force balanced relationship and the displacement compatibility conditions between wheels and rail, the equations of vehicle-bridge system are established. A calculating program is complicated with MATLAB language and solved by Newmark-β method. Results show that the effect of the damping ratio on the impact factor is significant and running speed of the vehicle is one of the main actors resulting in vibration of the system.

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Periodical:

Applied Mechanics and Materials (Volumes 193-194)

Pages:

919-924

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.193-194.919

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Online since:

August 2012

Authors:

Jin Feng Wu, Zhi Jun Zhang, Xiao Zhen Li

Keywords:

Dynamic Response, Mass-Spring Model, Newmark, Simply-Supported Girder Bridge

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References

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