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Erschienen in:
2009 | OriginalPaper | Buchkapitel
Local Dynamic Response in Deck Slabs of Concrete Box Girder Bridges
verfasst von : Jianrong Yang, Jianzhong Li
Erschienen in: Computational Structural Engineering
Verlag: Springer Netherlands
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With the effect of vehicle-bridge coupling considered, the local dynamic response in deck slabs of concrete box girder bridges are analyzed. The mathematical model assumes a finite element representation of the slabs with shell elements. And the vehicle simulation uses a 3 dimensional linear vehicle model with 7 independent degrees of freedom. A well-known power spectral density of road pavement profiles defines the deck surface roughness for Good and Poor roads respectively. Response data are produced on concrete highway bridge decks made of straight box section girder. In this way, a parametric study is conducted to analyze the effects of factors such as road surface roughness, vehicle speed, and bridge damping on the bridge dynamic amplification factors (DAFs). Results are presented to verify the extension of the local dynamical effects on concrete box girder decks with different working condition. From these results some general conclusions have been drawn.