Buffeting Response of Suspension Bridge Girder with Separate Control Flaps

Truc Huynh, Palle Thoft-Christensen

    Publikation: Bog/antologi/afhandling/rapportRapportForskningpeer review

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    Abstrakt

    This paper presents the calculation of the root mean square (RMS) response of a suspension bridge using separate control flaps (SCF) in turbulence conditions. It is assumed that the mean wind velocity is not large enough to cause coupled vibrations and that single mode buffeting response is of interest. The RMS response is determined on the basis of the equation of motion, which is formulated stochastically according to the wind random turbulence components. It is further assumed that the sum of the motion-induced forces and the buffeting-induced forces from the girder and the flaps is computed on the basis of independent flutter derivatives and independent aeroelastic coefficients from the girder and from the flaps. The theory is demonstrated by a numerical example based on a long-span suspension bridge model with the Great Belt girder.
    OriginalsprogEngelsk
    UdgivelsesstedAalborg
    ForlagDept. of Building Technology and Structural Engineering
    Antal sider9
    StatusUdgivet - 2000
    NavnStructural Reliability Theory
    Nummer193
    Vol/bindR0014
    ISSN1395-7953

    Bibliografisk note

    Presented at the European Conference on Structural Control, Champ sur Marne, France, July 3-7, 2000

    PDF for print: 16 pp.

    Emneord

    • Aeroelastic Forces
    • Buffeting Forces
    • Wind Spectra
    • Stochastic Modal Analysis
    • Suspension Bridges
    • RMS
    • SCF

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