Wind Tunnel Experiments with Active Control of Bridge Section Model

Henriette I. Hansen, Palle Thoft-Christensen

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    Abstract

    This paper describes results of wind tunnel experiments with a bridge section model where movable flaps are integrated in the bridge girder so each flap is the streamlined part of the edge of the girder. This active control flap system is patented by COWIconsult and may be used to increase the flutter wind velocity for future ultra-long span suspension bridges. The purpose of the wind tunnel experiments is to investigate the principle to use this active flap control system. The bridge section model used in the experiments is therefore not a model of a specific bridge but it is realistic compared with a real bridge. Five flap configurations are investigated during the wind tunnel experiments and depending on the actual flap configuration it is possible to decrease or increase the flutter wind velocity for the model.
    Original languageEnglish
    Place of PublicationAalborg
    PublisherDept. of Building Technology and Structural Engineering
    Number of pages6
    Publication statusPublished - 1998
    SeriesStructural Reliability Theory
    Number185
    VolumeR9839
    ISSN1395-7953

    Bibliographical note

    In: Processing IABSE Symposium on "Long-Span and High-Rise Structures", Kobe, Japan, September 2-4, 1998, pp. 199-204

    PDF for print: 12 pp.

    Keywords

    • Wind Tunnel Experiments
    • Bridge Section Model
    • Flaps
    • Movable Flaps
    • Bridge Girder
    • Active Control Flap System
    • COWIconsult
    • Flutter Wind Velocity
    • Ultra-Long Span Suspension Bridges
    • Flutter
    • Suspension Bridges
    • Flap Systems
    • Flap Configurations
    • Intelligent Bridge

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