Research on wind field characteristics measured in U-shaped valley at bridge site by Lidar
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Bibliographic Details
| Author(s): |
Jun Wang
(Chang’an University, Xi’an, Shannxi, China)
Jiawu Li (Chang’an University, Xi’an, Shannxi, China) Guang Hong (Chang’an University, Xi’an, Shannxi, China) Feng Wang (Chang’an University, Xi’an, Shannxi, China) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Bridges and Structures: Connection, Integration and Harmonisation, Nanjing, People's Republic of China, 21-23 September 2022 | ||||
| Published in: | IABSE Congress Nanjing 2022 | ||||
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| Page(s): | 733-741 | ||||
| Total no. of pages: | 9 | ||||
| DOI: | 10.2749/nanjing.2022.0733 | ||||
| Abstract: |
Currently, research on wind fields of U-shaped valleys is rarely reported. In order to study the wind characteristics in a mountainous U-shaped valley, a lidar was placed at a bridge site located in a U-shaped valley. Then, nearly 6 months of original data ranging from 0 m to 810 m were analyzed statistically. It was found that the wind parameters are correlated among different virtual wind towers (VWTs). The wind speed profile is divided into three categories: disordered, linear and nonlinear. The wind direction is consistent with the main wind direction at the bridge site and the average wind direction of different VWTs has a high consistency. The concept of wind-direction deflection rate is put forward to describe the variation of wind direction with height. These measured wind parameters could be used as a reference for bridge wind- resistant design. |
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| Keywords: |
bridge engineering LiDAR field measurement wind characteristics U-shaped valley bridge site
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| Copyright: | © 2022 International Association for Bridge and Structural Engineering (IABSE) | ||||
| License: | This creative work is copyrighted material and may not be used without explicit approval by the author and/or copyright owner. |
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