Effect of Turbulence on the Aerodynamic Stability of Long Span Bridges

Chun Guang Li; Zheng Qing Chen; Zhi Tian Zhang

doi:10.4028/www.scientific.net/AMR.639-640.452

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 639-640Effect of Turbulence on the Aerodynamic Stability...

Effect of Turbulence on the Aerodynamic Stability of Long Span Bridges

Abstract:

The study deals with the problem of turbulence effect on the instability of a long span suspended bridge. Wind tunnel test of three representative section models have been carried out in four type of passive grid turbulence flow to clarify the effect of turbulence intensity and turbulence scales. It was found that the turbulence has little effect on the derivatives of those streamlined deck sections, while it exhibits significant stabilizing effect on the bluff rectangular section prism. The loss of spanwise correlation may not be the main reasons induce the change of flutter stability in turbulence.

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Periodical:

Advanced Materials Research (Volumes 639-640)

Pages:

452-455

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.639-640.452

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Online since:

January 2013

Authors:

Chun Guang Li, Zheng Qing Chen, Zhi Tian Zhang

Keywords:

Passive Grid, Spanwise Correlation, Turbulence

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References

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