Dynamic stability of the Golden Gate Bridge deteriorated by roadway wind barriers

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F16%3A00460468" target="_blank" >RIV/68378297:_____/16:00460468 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Dynamic stability of the Golden Gate Bridge deteriorated by roadway wind barriers

Original language description

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.

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

JM - Structural engineering

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů