Wind response sensitivities of a long suspension bridge
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Bibliographic Details
| Author(s): |
Martin N. Svendsen
(Ramboll)
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Structural Engineering for Future Societal Needs, Ghent, Belgium, 22-24 September 2021 | ||||
| Published in: | IABSE Congress Ghent 2021 | ||||
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| Page(s): | 1675-1682 | ||||
| Total no. of pages: | 8 | ||||
| DOI: | 10.2749/ghent.2021.1675 | ||||
| Abstract: |
The sensitivities of wind-induced design section forces in the main girder of a suspension bridge with a span greater than 1000m are determined under variation of 20 different wind response calculation parameters. The investigated parameters cover turbulence characteristics such as length scales and correlation decay constants, as well as aerodynamic properties of the structure including both static coefficients and aerodynamic derivatives. The response calculations are performed considering both fully correlated static mean wind effects as well as low-frequent quasi-static and resonant turbulence effects. The study further comprises a detailed assessment of the convergence of stresses in the main girder as a function of number of included eigenmodes. Additionally, a full multi-modal response calculation including aeroelastic coupling effects is performed to quantify the accuracy of the simpler mode-by-mode calculation method. |
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| Keywords: |
structural dynamics structural reliability aerodynamics long-span bridges wind engineering
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| Copyright: | © 2021 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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