Wind and Structures

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Dynamic response of a bridge deck with one torsional degree of freedom under turbulent wind

  • Foti, Dora (Department of Structural Engineering, Technical University of Bari) ;
  • Monaco, Pietro (Department of Structural Engineering, Technical University of Bari)
  • Published : 2000.06.25
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Abstract

Under special conditions of turbulent wind, suspension and cable-stayed bridges could reach instability conditions. In various instances the bridge deck, as like a bluff body, could exhibit single-degree torsional instability. In the present study the turbulent component of flow has been considered as a solution of a differential stochastic linear equation. The input process is represented by a Gaussian zero-mean white noise. In this paper the analytical solution of the dynamic response of the bridge has been determined. The solution has been obtained with a technique of closing on the order of the moments.

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References

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