This paper deals with the numerical modelling of free field traffic induced vibrations during the passage of a vehicle on an uneven road. The road unevenness subjects the vehicle to vertical oscillations that cause dynamic axle loads. The latter are calculated from the vehicle transfer functions and the frequency content of the road profile as experienced by the vehicle axles. A transfer function between the source and the receiver that accounts for the dynamic interaction between the road and the soil is used to calculate the free field response. Its calculation is based on a dynamic substructure method, using a boundary element method for the soil and an analytical beam model for the road. The methodology is finally illustrated by a numerical example where the influence of the soil layering on the free field vibrations generated by the passage of a vehicle on a traffic plateau is shown.
A dynamic soil-structure interaction approach for the modelling of free field traffic induced vibrations
Verfahren der dynamischen Wechselwirkung zwischen Straße und Erdboden für die Modellierung von verkehrsbedingten Freifeldschwingungen
International Congress on Sound and Vibration, 7 ; 2773-2780
2000
8 Seiten, 4 Tabellen, 9 Quellen
Conference paper
English
The influence of the soil stratification on free field traffic-induced vibrations
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