Idioma:

Dynamic Response of Transmission Tower-Line Systems Due to Ground Vibration Caused by High-Speed Trains

Zhao, Guifeng ; Wang, Meng ; Liu, Ying ; Zhang, Meng

Buildings (Basel), 2023-11, Vol.13 (11), p.2884 [Periódico revisado por pares]

Basel: MDPI AG

Texto completo disponível

Citações Citado por

Enviar para

Título:
Dynamic Response of Transmission Tower-Line Systems Due to Ground Vibration Caused by High-Speed Trains
Autor: Zhao, Guifeng ; Wang, Meng ; Liu, Ying ; Zhang, Meng
Assuntos: Acceleration ; Bridges ; Buildings ; Construction ; Design and construction ; Dynamic characteristics ; Dynamic response ; Electricity distribution ; Energy consumption ; Field study ; Finite element method ; ground vibration ; High rise buildings ; High speed rail ; High speed trains ; high-speed train ; Infrastructure (Economics) ; Laws, regulations and rules ; Load ; Locomotives ; Masonry ; Mathematical models ; Modal analysis ; numerical simulation ; Power supply ; Railroads ; Railway engineering ; Railway networks ; Resonant frequencies ; Seismic engineering ; Simulation ; Soil quality ; Soils ; Trains ; Transmission lines ; transmission tower-line structure ; Transmission towers ; Transportation authorities ; Vibration ; Vibration analysis ; Vibration mode
É parte de: Buildings (Basel), 2023-11, Vol.13 (11), p.2884
Descrição: With the continuous expansion of the scale of power grid and transportation infrastructure construction, the number of crossovers between transmission lines and high-speed railways continues to increase. At present, there is a lack of systematic research on the dynamic characteristics of transmission tower-line structures crossing high-speed railways under vehicle-induced ground vibration. This article focuses on the phenomenon of accidents such as line drops when crossing areas in recent years and establishes a high-speed train track foundation soil finite element model in ABAQUS that considers track irregularity. The three-dimensional vibration characteristics and attenuation law of train ground vibration are analyzed. Acceleration data for key points are also extracted. A separate finite element model of the transmission tower-line system is established in ANSYS, where acceleration is applied as an excitation to the transmission tower-line system, and the coupling effect between the tower and the line is considered to analyze its dynamic response. Subsequently, modal analysis is conducted on the tower-line system, providing the vibration modes and natural frequencies of the transmission tower-line structure. The effects of factors such as train speed, soil quality, and distance from the tower to the track on the dynamic response of the transmission tower-line system under vehicle-induced ground vibration are studied. The results show that the speed range (300 km/h–400 km/h) and track distance range (4.5 m–30 m) with the greatest impacts are obtained. The research results can provide a reference for the reasonable design of transmission tower-line systems in high-speed railway sections.
Editor: Basel: MDPI AG
Idioma: Inglês

Voltar para lista de resultados

Realização: Logos de Redes Sociais:

Dynamic Response of Transmission Tower-Line Systems Due to Ground Vibration Caused by High-Speed Trains

Zhao, Guifeng ; Wang, Meng ; Liu, Ying ; Zhang, Meng

Basel: MDPI AG

Buscando em bases de dados remotas. Favor aguardar.