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Impact Coefficient Analysis of Long-Span Railway Cable-Stayed Bridge Based on Coupled Vehicle-Bridge Vibration

Auteur(s): ORCID




Médium: article de revue
Langue(s): anglais
Publié dans: Shock and Vibration, , v. 2015
Page(s): 1-9
DOI: 10.1155/2015/641731
Abstrait:

Compared with medium and small span bridges, very limited attention has been paid on the research of the impact coefficient of long-span railway bridges. To estimate the impact effects of long-span railway bridges subjected to moving vehicles, a real long-span railway cable-stayed bridge is regarded as the research object in this study, and a coupled model of vehicle-bridge system is established. The track irregularities are taken as the system excitation and the dynamic responses of the vehicle-bridge system are calculated. The impact effects on main girder, stayed cable, bearings, and bridge tower are discussed at various vehicle speeds. The results show that different components of the long-span railway cable-stayed bridge have different impact coefficients. Even for each part, the impact coefficient is also different at different local positions. It reveals that the impact coefficients in the actual situation may have significant differences with the related code clauses in the present design codes.

Copyright: © 2015 Yongle Li, Shifu Dong, Yulong Bao, Kejian Chen, Shizhong Qiang
License:

Cette oeuvre a été publiée sous la license Creative Commons Attribution 3.0 (CC-BY 3.0). Il est autorisé de partager et adapter l'oeuvre tant que l'auteur est crédité et la license est indiquée.

  • Informations
    sur cette fiche
  • Reference-ID
    10676348
  • Publié(e) le:
    28.05.2022
  • Modifié(e) le:
    01.06.2022
 
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