Effects of bridge cable surface roughness and cross-sectional distortion on aerodynamic force coefficients

G. Matteoni, C.T. Georgakis

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Theoretical and experimental investigations to date have assumed that bridge cables can be modeled as ideal circular cylinders and the associated aerodynamic coefficients are invariant with the wind angle-of-attack. On the other hand, bridge cables are normally characterized by local alterations of their inherent surface roughness and shape, which might present a significant disturbance for the surrounding wind flow. The present study focuses on the experimental determination, based on static wind tunnel tests, of the aerodynamic coefficients of full-scale bridge cable section models both perpendicular and inclined to the flow, for varying wind angles-of-attack. The wind tunnel test results demonstrate that the aerodynamic coefficients of bridge cables can be significantly affected by the wind angle-of-attack.
Original languageEnglish
JournalJournal of Wind Engineering & Industrial Aerodynamics
Volume104-106
Pages (from-to)176-187
ISSN0167-6105
DOIs
Publication statusPublished - 2012
Event13th International Conference on Wind Engineering - Amsterdam, Netherlands
Duration: 10 Jul 201115 Jul 2011
Conference number: 13
http://www.icwe13.org/

Conference

Conference13th International Conference on Wind Engineering
Number13
CountryNetherlands
CityAmsterdam
Period10/07/201115/07/2011
Internet address

Keywords

  • Bridge cable
  • Surface roughness
  • Shape distortion
  • Turbulence
  • Inclined cable

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