Authors
JB Jakobsen, TL Andersen, John HG Macdonald, Nikolaos Nikitas, GL Larose, MG Savage, BR McAuliffe
Publication date
2012/11/1
Journal
Journal of Wind Engineering and Industrial Aerodynamics
Volume
110
Pages
100-112
Publisher
Elsevier
Description
This paper focuses on wind-induced vibrations of dry inclined bridge cables in the critical Reynolds number range. The cable response and the associated wind load characteristics are studied experimentally, in the third phase of a major wind tunnel investigation on cable aerodynamics at the National Research Council Canada. The displacement (and acceleration) response of a 6.7m long section cable model, 160mm in diameter, was monitored simultaneously with 162 surface pressure taps, for inclinations of 60°, 77° and 90°. The data corroborate the susceptibility of dry cables to respond, primarily in the across-flow direction, to load variations associated with transitions between flow regimes throughout the drag crisis region. The most vigorous vibrations (stopped at approximately 60% diameter response amplitude) were observed at 60°, with damping ratios below 0.2%. Significant “lock-in” between the lift force …
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Scholar articles
JB Jakobsen, TL Andersen, JHG Macdonald, N Nikitas… - Journal of Wind Engineering and Industrial …, 2012