Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Effect of Subgrade Boundary on Seismic Response of the High-Speed Railway Track-Bridge System
As a crucial component of the boundary conditions on both sides of the high-speed railway track-bridge system, the seismic response of the flexible subgrade structure is markedly different from that of the bridge structure. This difference has been increasingly pronounced with the widespread implementation of constant welded rail technology in the construction of high-speed railway bridges. This study delves into the bridge system incorporating the CRTSII ballastless track structure, specifically examining the effect of the longitudinal constraint range of the subgrade structure on the bridge system’s seismic response under various seismic intensities. The findings reveal that the subgrade structure profoundly impacts the bridge system’s longitudinal stiffness, whereas its effect on transverse stiffness is comparatively marginal. It is observed that the impact on the system stabilizes as the subgrade structure extends to 130 meters. Therefore, a 130-meter length of the subgrade structure can be used as a feasible reference value for the range of bridge-subgrade coupling.
Effect of Subgrade Boundary on Seismic Response of the High-Speed Railway Track-Bridge System
As a crucial component of the boundary conditions on both sides of the high-speed railway track-bridge system, the seismic response of the flexible subgrade structure is markedly different from that of the bridge structure. This difference has been increasingly pronounced with the widespread implementation of constant welded rail technology in the construction of high-speed railway bridges. This study delves into the bridge system incorporating the CRTSII ballastless track structure, specifically examining the effect of the longitudinal constraint range of the subgrade structure on the bridge system’s seismic response under various seismic intensities. The findings reveal that the subgrade structure profoundly impacts the bridge system’s longitudinal stiffness, whereas its effect on transverse stiffness is comparatively marginal. It is observed that the impact on the system stabilizes as the subgrade structure extends to 130 meters. Therefore, a 130-meter length of the subgrade structure can be used as a feasible reference value for the range of bridge-subgrade coupling.
Effect of Subgrade Boundary on Seismic Response of the High-Speed Railway Track-Bridge System
Atlantis Highlights in Engineering
Liu, Peng (Herausgeber:in) / Bilgin, Hüseyin (Herausgeber:in) / Yang, Jialing (Herausgeber:in) / Hu, Bin (Herausgeber:in) / Wei, Biao (Autor:in) / Yuan, Shuaijie (Autor:in) / Jiang, Lizhong (Autor:in) / Yu, Yujie (Autor:in)
International Conference on Civil, Architecture and Disaster Prevention and Control ; 2024 ; Xi'an, China
14.06.2024
11 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Effects of CRTS II Unballasted Track on Seismic Response of High-Speed Railway Bridge
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