Location

San Diego, California

Session Start Date

5-24-2010

Session End Date

5-29-2010

Abstract

The purpose of this study is to investigate the response of an elastic beam on a Winkler foundation under a moving load. The load is assumed as a moving harmonic load and the beam is considered as an infinite Bernoulli-Euler beam with constant cross-section. The approach of Winkler foundation for the elastic foundation is very common in the practical applications although it does not accurately represent the continuous characteristic of the foundations. In this model the interaction between the vertical springs is only considered. In the solutions of the problem, the double Fourier Transform is applied and for its invention Inverse Fast Fourier Transform(IFFT) is used. In the numerical example, the effect of the moving load velocity on the dynamic displacement response of the beam is discussed. The maximum deflections of the beam due to the moving load velocities are illustrated.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

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

Meeting Name

Fifth Conference

Publisher

Missouri University of Science and Technology

Publication Date

5-24-2010

Document Version

Final Version

Rights

© 2010 Missouri University of Science and Technology, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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May 24th, 12:00 AM May 29th, 12:00 AM

Dynamic Behavior of an Elastic Beam on a Winkler Foundation under a Moving Load

San Diego, California

The purpose of this study is to investigate the response of an elastic beam on a Winkler foundation under a moving load. The load is assumed as a moving harmonic load and the beam is considered as an infinite Bernoulli-Euler beam with constant cross-section. The approach of Winkler foundation for the elastic foundation is very common in the practical applications although it does not accurately represent the continuous characteristic of the foundations. In this model the interaction between the vertical springs is only considered. In the solutions of the problem, the double Fourier Transform is applied and for its invention Inverse Fast Fourier Transform(IFFT) is used. In the numerical example, the effect of the moving load velocity on the dynamic displacement response of the beam is discussed. The maximum deflections of the beam due to the moving load velocities are illustrated.