Study on wind environment of Sanshui River Bridge site

Hua Bai; Hong Bai

doi:10.1117/12.906126

28 October 2011 Study on wind environment of Sanshui River Bridge site

Hua Bai, Hong Bai

Proceedings Volume 8205, 2011 International Conference on Photonics, 3D-Imaging, and Visualization; 82052Q (2011) https://doi.org/10.1117/12.906126
Event: 2011 International Conference on Photonics, 3D-imaging, and Visualization, 2011, Guangzhou, China

Abstract

The wind environment in Sanshui River Bridge surrounding is very complex. Through the simulation on the wind tunnel test of bridge terrain, this thesis studies how the wind characteristic parameter varies as the wind direction changes and the influence of its surrounding. Experiment results show that due to surrounding terrain, the wind profile of some wind angle are not in accordance with the exponential distribution .When the wind direction is corresponded to the trend of the river valley, the average exponent of wind profile is smaller than those of any other; the turbulence s near the side slope in the valley are relatively larger and the turbulence of the bridge middle main span is larger than 15%; there is no obvious accelerative effect in bridge location; turbulence integral scale does not change as much as turbulence intensity; the power spectrum of fluctuating wind is greatly influenced by mountains and its power is remarkably weakened.

Citation Download Citation

Hua Bai and Hong Bai "Study on wind environment of Sanshui River Bridge site", Proc. SPIE 8205, 2011 International Conference on Photonics, 3D-Imaging, and Visualization, 82052Q (28 October 2011); https://doi.org/10.1117/12.906126

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