Location

San Diego, California

Presentation Date

30 Mar 2001, 10:30 am - 12:30 pm

Abstract

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. A simple 2D vehicle model is used for the calculation of the axle loads from the longitudinal road profile. The free field soil response is calculated with the dynamic Betti-Rayleigh reciprocity theorem, using a transfer function between the road and the receiver that accounts for dynamic road-soil interaction. The calculation of the transfer function is based on a dynamic substructure method with 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 free field vibrations generated by the passage of a vehicle on a traffic plateau are calculated.

Department(s)

Civil, Architectural and Environmental Engineering

Meeting Name

4th International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics

Publisher

University of Missouri--Rolla

Document Version

Final Version

Rights

© 2001 University of Missouri--Rolla, All rights reserved.

Creative Commons Licensing

Creative Commons License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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The Modelling of Free Field Traffic Induced Vibrations by Means of a Dynamic Soil-Structure Interaction Approach

San Diego, California

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. A simple 2D vehicle model is used for the calculation of the axle loads from the longitudinal road profile. The free field soil response is calculated with the dynamic Betti-Rayleigh reciprocity theorem, using a transfer function between the road and the receiver that accounts for dynamic road-soil interaction. The calculation of the transfer function is based on a dynamic substructure method with 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 free field vibrations generated by the passage of a vehicle on a traffic plateau are calculated.