Location

San Diego, California

Session Start Date

3-26-2001

Session End Date

3-31-2001

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

Appears In

International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics

Meeting Name

Fourth Conference

Publisher

University of Missouri--Rolla

Publication Date

3-26-2001

Document Version

Final Version

Rights

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

Document Type

Article - Conference proceedings

File Type

text

Language

English

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Mar 26th, 12:00 AM Mar 31st, 12:00 AM

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.