高速列车过站时高架站房楼盖表面风压分析<sup>*</sup>

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Abstract Research purposes: Due to the lighter and more flexible development in the long-span elevated high-speed railway station, it shows more sensitive to the wind pressure changes of the station structure surface generated by aerodynamic force of high-speed trains. In order to explore the wind pressure characteristics of the floor surface when the high-speed trains pass through the long-span elevated station structure, the Fluent dynamic grid and CFD numerical simulation technology was used to analyze the wind pressure characteristics of long-span elevated station's floor surface with the high-speed train running at 350 km per hour in the form of single and double tracks. Both the time-history characteristics and spatial distribution characteristics of the wind pressure on the floor surface were studied.
Research conclusions: (1)The superimposed effect of the train wind on the floor surface has a significant effect on the wind pressure amplitude of the floor surface when the double-track train runs in mid-span intersection compared with the single-track high-speed train. (2)Compared with the single-track running condition, the positive and negative wind pressure extreme values of the head wave at each measuring point in the mid-span area increased to a greater extent, and the minimum increases of the positive and negative wind pressure extreme values of the measuring point were 62.30% and 64.36%. (3)The research results can provide a reference for further optimization of wind resistance design of long-span station structures.

Key words： high-speed train train-induced wind CFD surface wind pressure aerodynamic load transient pressure

Received: 06 December 2023

PACS:

U270.11

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	Articles by authors
	CAI Chenzhi
	AI Yuyan
	ZHOU Zhihui
	HE Xuhui
	ZOU Yunfeng
	ZHANG Yong
	ZHOU De

Cite this article:

CAI Chenzhi,AI Yuyan,ZHOU Zhihui, et al. Analysis of Wind Pressure on the Surface of the Elevated Station Building when the High-speed Train Passes through the Station[J]. Journal of Railway Engineering Society, 2024, 41(7): 75-81.

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https://tdgcxb.crec.cn/EN/ OR https://tdgcxb.crec.cn/EN/Y2024/V41/I7/75

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