Dynamic Responses of Vehicle-CRTS III Slab Track System and Vehicle Running Safety Subjected to Uniform Seismic Excitation

Dynamic Responses of Vehicle-CRTS III Slab Track System and Vehicle Running Safety Subjected to Uniform Seismic Excitation

The dynamic model for the vehicle-CRTS III slab track system is established subjected to uniform seismic excitation, and the calculation program with MATLAB is compiled and verified. The influences of track parameters, seismic intensity, and running speed of the vehicle on the dynamic responses of t...

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Veröffentlicht in:Shock and vibration 2019, Vol.2019 (2019), p.1-12
Hauptverfasser: Xu, Qingyuan, Zhao, Chen, Gong, Kailun, Lou, Ping, Luo, Robert K.
Format: Artikel
Sprache:eng
Schlagworte:
Bridges
Concrete
Derailments
Dynamic models
Earthquake intensity
Earthquakes
Engineering
High speed rail
Mechanics
Parameters
Piers
Running
Safety
Seismic engineering
Seismic response
Traffic speed
Vehicles
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Zusammenfassung:The dynamic model for the vehicle-CRTS III slab track system is established subjected to uniform seismic excitation, and the calculation program with MATLAB is compiled and verified. The influences of track parameters, seismic intensity, and running speed of the vehicle on the dynamic responses of the system and the vehicle running safety are analyzed. The results show that (1) the track parameters have certain influence on the dynamic responses of the system, and the seismic intensity and the running speed of the vehicle have important influence on the vehicle running safety; (2) the derailment coefficient is highly sensitive to seismic intensity, and the wheel load reduction rate is also highly sensitive to the running speed of the vehicle.
ISSN:1070-9622
1875-9203
DOI:10.1155/2019/5308209