TY - JOUR

T1 - Effects of bridge cable surface roughness and cross-sectional distortion on aerodynamic force coefficients

A1 - Matteoni,G.

A1 - Georgakis,C.T.

AU - Matteoni,G.

AU - Georgakis,C.T.

PB - Elsevier BV

PY - 2012

Y1 - 2012

N2 - 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.

AB - 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.

KW - Bridge cable

KW - Surface roughness

KW - Shape distortion

KW - Turbulence

KW - Inclined cable

U2 - 10.1016/j.jweia.2012.02.029

DO - 10.1016/j.jweia.2012.02.029

JO - Journal of Wind Engineering & Industrial Aerodynamics

JF - Journal of Wind Engineering & Industrial Aerodynamics

SN - 0167-6105

VL - 104-106

SP - 176

EP - 187

ER -