Experiments on a yaw stay cable in turbulent flow in the critical Reynolds number

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Proceedings titleProceedings, Annual Conference - Canadian Society for Civil Engineering
ConferenceAnnual Conference of the Canadian Society for Civil Engineering 2011, CSCE 2011, 14 June 2011 through 17 June 2011, Ottawa, ON
Pages990999; # of pages: 10
SubjectAerodynamic phenomena; Boundary layer wind tunnel; Bridge sites; Critical Reynolds number; Experimental campaign; Inclined stay cables; Long span cable stayed bridges; Mean aerodynamic force coefficient; Sectional model; Stay cable; Turbulence level; Wind directions; Wind induced vibrations; Wind speed; Aerodynamics; Cable stayed bridges; Cables; Circular cylinders; Civil engineering; Experiments; Reynolds number; Turbulent flow; Bridges
AbstractResults of an experimental campaign that focuses on the determination of the mean aerodynamic force coefficients on yawed and inclined stay cable commonly used on long-span cable-stayed bridges are presented in this paper. The tests were carried out on a long sectional model of a cable in the large boundary layer wind tunnel of Politecnico di Milano in smooth and turbulent flow. The experiments revealed that for wind speeds and turbulence level that can occur regularly on bridge sites, across-wind forces that can rapidly changes with wind speed and wind direction are present. The forces are associated with a particular aerodynamic phenomenon that occurs in the critical Reynolds number range for smooth circular cylinders and that can lead to wind-induced vibrations and cable galloping.
Publication date
AffiliationNational Research Council Canada (NRC-CNRC)
Peer reviewedYes
NPARC number21271729
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Record identifierf0ab493f-7084-409e-a7ee-67c02b4cc474
Record created2014-03-24
Record modified2016-05-09
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