Dynamic stability of the Golden Gate Bridge deteriorated by roadway wind barriers (CROSBI ID 636347)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Buljac, Andrija ; Kozmar, Hrvoje ; Pospíšil, Stanislav ; Macháček, Michael ; Král, Radomil
engleski
Dynamic stability of the Golden Gate Bridge deteriorated by roadway wind barriers
This study focuses on aerodynamic forces, moments and dynamic stability of the Golden Gate Bridge with a roadway wind barrier in place. Wind-tunnel experiments are carried out on the bridge-deck section to compare drag and lift force coefficients, pitch moment, galloping and flutter sensitivity for the bridge-deck section with and without a wind barrier. The experimental results indicate an exhibited influence of a roadway wind barrier on the Golden Gate Bridge aerodynamics and aeroelasticity. In particular, when a wind barrier is in place, there is an increase in drag force coefficients in the entire range of investigated wind incidence angles. For the lift force coefficients, the trends are different for negative and positive wind incidence angles. Absolute values of pitch moment coefficients are larger in the experiment with the wind barrier. Wind barriers are not likely to cause galloping instability, while flutter may be expected at lower wind velocities than it is the case for the empty bridge-deck section.
Golden Gate Bridge ; roadway wind barriers ; galloping ; flutter ; wind-tunnel experiments
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
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Podaci o prilogu
2016.
objavljeno
Podaci o matičnoj publikaciji
Proceedings of the 8th International Colloquium on Bluff Body Aerodynamics and Applications
Boston (MA):
Podaci o skupu
International Colloquium on Bluff Body Aerodynamics and Applications (8 ; 2016)
predavanje
07.06.2016-11.06.2016
Boston (MA), Sjedinjene Američke Države