Wind field and wind pressure characteristics of Beijing Daxing International Airport terminal using field measurements

被引：0
|
作者：
Wan H. [1 ]
Hu P. [1 ]
Liu X. [1 ]
Zhang W. [1 ]
Qin K. [1 ,2 ]
Luo Y. [1 ]
机构：
[1] College of Civil Engineering and Architecture, Zhejiang University, Hangzhou
[2] Beijing Institute of Architectural Design, Beijing
来源：
Jianzhu Jiegou Xuebao/Journal of Building Structures | 2024年 / 45卷 / 07期
关键词：
Beijing Daxing International Airport; field measurement; non-Gaussian characteristic; wind field characteristic; wind pressure distribution;
D O I：
10.14006/j.jzjgxb.2023.0621
中图分类号：
学科分类号：
摘要：
Large-span spatial structures are typical wind-sensitive structures, and their wind field and wind pressure have strong randomness and spatiotemporal distribution characteristics. Therefore, it is necessary to conduct a comprehensive and systematic study on synchronous measurements of structural wind field and wind pressure characteristics of such structures. Based on the wind speed and wind pressure measurement data of Beijing Daxing International Airport terminal, the wind field and wind pressure characteristics of the terminal roof were studied in this paper, involving the wind field characteristics at different positions of the roof and the relationship between different wind field characteristics. Combining the measured wind field characteristics, the spatiotemporal distribution and non-Gaussian characteristics of wind pressure on the roof were investigated, and the power spectral densities of fluctuating wind speeds and fluctuating wind pressures were compared. The results indicate that there are significant differences in wind field characteristics at different locations on the roof. The mean wind speed is negatively correlated with the turbulence intensity and gust factor, while the turbulence intensity is positively correlated with gust factor. The wind pressure on the roof exhibits complex spatiotemporal distribution characteristics at windward edges and corridor locations where characteristic turbulence is likely to occur. The wind pressure on the majority of the roof area exhibits a non-Gaussian distribution with skewness less than 0 and kurtosis greater than 3, and the power spectral densities of fluctuating wind pressures and fluctuating wind speeds are significantly influenced by the roof characteristic turbulence. © 2024 Science Press. All rights reserved.
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页码：120 / 130
页数：10
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