| Issue |
MATEC Web Conf.
Volume 107, 2017
Dynamics of Civil Engineering and Transport Structures and Wind Engineering – DYN-WIND’2017
|
|
|---|---|---|
| Article Number | 00080 | |
| Number of page(s) | 8 | |
| DOI | https://doi.org/10.1051/matecconf/201710700080 | |
| Published online | 24 May 2017 | |
Investigation of Strouhal number of ice-accreted bridge cables at moderate flow turbulence
1 Opole University of Technology, Faculty of Civil Engineering and Architecture, Department of Roads and Bridges, Katowicka 48, Opole 45-061, Poland
2 Academy of Sciences of the Czech Republic, Institute of Theoretical and Applied Mechanics, Czech Republic
* Corresponding author: p.gorski@po.opole.pl
This paper is concerned with the investigation of the Strouhal number (St) for a stationary iced cable model of cable-supported bridges using wind tunnel tests with respect to three principal angles of wind attack. The investigations were carried out in the Climatic Wind Tunnel Laboratory of the Czech Academy of Sciences in Telč. The St values were determined at the flow turbulence intensity of the order of 12%, within the range of the Reynolds number from 2.4·104 to 12.9·104, based on the dominant vortex shedding frequencies measured in the wake of the model. The obtained experimental St values of the iced cable of a cable-supported bridge will allow to determine the critical wind velocity as well as will be helpful for prediction of the cable response due to the vortex excitation phenomenon at moderate flow turbulence condition.
© The Authors, published by EDP Sciences, 2017
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