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Ein Beitrag zum Brückenflattern: Nachweis am ebenen Ersatzsystem und Einfluß des Profils
Citation Link: https://doi.org/10.15480/882.350
Other Titles
Contributions to the bridge flutter problem: Prediction by means of generalized 2-DOF systems and influence of cross-sectional shape
Publikationstyp
Journal Article
Date Issued
1993
Sprache
German
Author(s)
Starossek, Uwe
Institut
TORE-DOI
Wind-induced flutter of bridges occurs as coupled torsional and vertical oscillation or uncoupled torsional oscillation. Bridges with streamlined, plate-like cross-section are prone to coupled flutter; bridges with bluff, non-streamlined section tend to torsional flutter. Prediction of torsional flutter on the basis of measured aerodynamic derivatives essentially corresponds to the prediction of coupled flutter, although, compared to the latter, it can be largly simplified. The theoretical background for the prediction of coupled flutter by means of generalized 2-degree-of-freedom systems and the simplified prediction of uncoupled torsional flutter is discussed. Furthermore, criteria for the classification of cross-sections as plate-like sections are given. These sections generally provide higher critical wind speeds. The given criteria can therefore be used as design rules.
DDC Class
620: Ingenieurwissenschaften
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