Wind Induced Vibration Performance of Suspended Double-deck Flat Box Girder Bridge
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Détails bibliographiques
| Auteur(s): |
Guang Hong
(Chang’an University, Xi’an, Shaanxi, China)
Jiawu Li (Chang’an University, Xi’an, Shaanxi, China) Jiaying Wang (Chang’an University, Xi’an, Shaanxi, China) Jun Wang (Chang’an University, Xi’an, Shaanxi, China) Feng Wang (Chang’an University, Xi’an, Shaanxi, China) Yu Li (Chang’an University, Xi’an, Shaanxi, China) |
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| Médium: | papier de conférence | ||||
| Langue(s): | anglais | ||||
| Conférence: | IABSE Congress: Bridges and Structures: Connection, Integration and Harmonisation, Nanjing, People's Republic of China, 21-23 September 2022 | ||||
| Publié dans: | IABSE Congress Nanjing 2022 | ||||
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| Page(s): | 267-275 | ||||
| Nombre total de pages (du PDF): | 9 | ||||
| DOI: | 10.2749/nanjing.2022.0267 | ||||
| Abstrait: |
The paper researches the wind vibration performance of suspended double-deck streamlined bridge deck using the wind tunnel test and numerical simulation. Studies shown that for suspended double- deck bridge, due to the aerodynamic interference of the upper deck, the lower deck is driven by a vertical vibration negative damping, and the vertical vibration is significantly changed. The pressure distribution of the upper deck and the upper edge of lower deck did not change. The wind load acts on the upper edge of lower deck, and the minus attack angle was generated. With the generation, migration and shedding of large-scale vortices at the lower edge of the lower deck, the lower deck occurs the bending-torsional coupling "soft flutter". Moreover, due to the structural static coupling between the upper deck and the lower deck, the bending-torsional soft flutter at the lower deck induces the bending-torsional soft flutter of the double-deck bridge deck. |
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| Mots-clé: |
essai en soufflerie
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| Copyright: | © 2022 International Association for Bridge and Structural Engineering (IABSE) | ||||
| License: | Cette oeuvre ne peut être utilisée sans la permission de l'auteur ou détenteur des droits. |
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