Bridge windshield design to avoid aeroelastic phenomena

Ogueta Gutiérrez, Mikel and Franchini Longhi, Sebastian Nicolas (2014). Bridge windshield design to avoid aeroelastic phenomena. In: "15th International Conference European Bridge Conference", 8-9 Jul 2014, Edinburgh, Scotland. pp. 1-9.


Title: Bridge windshield design to avoid aeroelastic phenomena
  • Ogueta Gutiérrez, Mikel
  • Franchini Longhi, Sebastian Nicolas
Item Type: Presentation at Congress or Conference (Article)
Event Title: 15th International Conference European Bridge Conference
Event Dates: 8-9 Jul 2014
Event Location: Edinburgh, Scotland
Title of Book: 15th European Bridge Conference at Structural Faults Repair 2014
Date: 2014
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Aeronaves y Vehículos Espaciales
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Since in 1940 the Tacoma Narrows Bridge was destroyed by the wind, aeroelastic instabilities have been recognized as one of the most challenging aspects of bridge design. They can produce long-term fatigue failure through vortex induced vibrations, or sudden collapse through self-excited flutter. These vibrations may also cause discomfort for the users and temporary closure of the bridge. Wind tunnel studies are a very helpful tool to understand these phenomena. By means of them, the critical wind speed at which vortex induced vibration and flutter appear can be precisely determined and the design of the bridge can be reconsidered in the early steps of the process. In this paper, an optimum design of the bridge section is sought. One of the most relevant parameters that influence the stability of a certain deck is the porosity of the barriers. Section model tests have been carried out to find whether an optimum value of the porosity of the barrier exists. This value or range of values must present neither vortex induced vibration nor flutter.

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Item ID: 36575
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Deposited by: Memoria Investigacion
Deposited on: 12 Nov 2015 12:06
Last Modified: 06 Jun 2016 12:06
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