Experimental Investigation of Aerodynamic Instability of Iced Bridge Cable Sections

Holger Koss, Mia Schou Møller Lund

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    Abstract

    The accretion of ice on structural bridge cables changes the aerodynamic conditions of the surface and influences hence the acting wind load process. Full-scale monitoring indicates that light precipitation at moderate low temperatures between zero and -5°C may lead to large amplitude vibrations of bridge cables under wind action. This paper describes the experimental simulation of ice accretion on a real
    bridge cable sheet HDPE tube segment (diameter 160mm) and its effect on the aerodynamic load. Furthermore, aerodynamic instability will be estimated with quasi-steady theory using the determined load coefficients and experimental simulation on a 1DOF elastically suspended cable section.
    Original languageEnglish
    Title of host publicationProceedings of the 6th European and African Wind Engineering Conference
    Number of pages8
    Publication date2013
    Publication statusPublished - 2013
    Event6th European and African Wind Engineering Conference - Robinson College, Cambridge, United Kingdom
    Duration: 7 Jul 201311 Jul 2013
    Conference number: 6

    Conference

    Conference6th European and African Wind Engineering Conference
    Number6
    LocationRobinson College
    Country/TerritoryUnited Kingdom
    CityCambridge
    Period07/07/201311/07/2013

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