| Issue |
MATEC Web Conf.
Volume 245, 2018
International Scientific Conference on Energy, Environmental and Construction Engineering (EECE-2018)
|
|
|---|---|---|
| Article Number | 02001 | |
| Number of page(s) | 7 | |
| Section | Bridges, Roads and Tunnels | |
| DOI | https://doi.org/10.1051/matecconf/201824502001 | |
| Published online | 05 December 2018 | |
Ensuring the aerodynamic stability of the long-span bridges through studies in the wind tunnel
1
Peter the Great St. Petersburg Polytechnic University, Polytechnicheskaya st. 29, St. Petersburg, 195251, Russian Federation
2
Krylov State Research Centre, laboratory of Aerodynamics, Moskovskoe shosse 44, St. Petersburg, 196158, Russian Federation
* Corresponding author: hrapunov.evgenii@gmail.com
The main ideas of the aerodynamic studies of large bridges are presented in present paper. Main types of aero-elastic instability for bridges with spans over 100 meters are considered. A two-step modeling approach is presented. At the first stage, the aerodynamic characteristics of the span fragment are considered, at the second.stage the characteristics of the whole bridge. Methods for investigation of bridge oscillations in a special-purpose experimental facility – the Landscape Wind Tunnel – are described. Examples of tests with elastic similar models of bridges are given, and measurements to mitigate dangerous oscillations early in the bridge design process are described.
© The Authors, published by EDP Sciences, 2018
This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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