A30 Bridge Montreal - Aerodynamic Stability of Parallel Box-Girders
Author(s): |
Ender Ozkan
Jan Dale Andrew Allsop Stoyan Stoyanoff |
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Medium: | conference paper |
Language(s): | English |
Conference: | 35th Annual Symposium of IABSE / 52nd Annual Symposium of IASS / 6th International Conference on Space Structures: Taller, Longer, Lighter - Meeting growing demand with limited resources, London, United Kingdom, September 2011 |
Published in: | IABSE-IASS 2011 London Symposium Report |
Year: | 2011 |
Abstract: |
The proposed Beauharnois Canal Bridge is part of a 42km extension of Highway 30 in Quebec, Canada, and is located between the towns of Beauharnois and Melocheville. The bridge consists of twin composite box girder sections with bluff concrete edge parapets. An aerodynamic assessment was carried out in early stages of the project which highlighted the risks associated with vortex- induced vibrations, particularly during the construction stages. Extensive wind tunnel tests were conducted to evaluate the aeroelastic performance of the bridge at various construction stages and in permanent condition. Temporary mitigation measures and construction staging sequences were developed to improve the performance of the decks during construction. |
Keywords: |
wind tunnel test bridge construction safety barriers vortex shedding aerodynamic stability wake galloping independent spring suspension system temporary mitigation measures twin-box girder bridge
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