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 singledegree 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 zeromean 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.
Dynamic response of a bridge deck with one torsional degree of freedom under turbulent wind / Foti, Dora; Monaco, Pietro. - In: WIND AND STRUCTURES. - ISSN 1226-6116. - STAMPA. - 3:2(2000), pp. 117-132. [10.12989/was.2000.3.2.117]
Dynamic response of a bridge deck with one torsional degree of freedom under turbulent wind
Foti, Dora;Monaco, Pietro
2000-01-01
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 singledegree 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 zeromean 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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
