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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