Vibration Analysis of 3D Timoshenko Beams Subjected to Moving Vehicles
Publication: Journal of Engineering Mechanics
Volume 137, Issue 11
Abstract
This study solves the three-dimensional (3D) dynamic interaction problem between simply supported Timoshenko beams and vehicles by using theoretical equations. The model includes intermediate supports, so train-rail-soil interaction can be analyzed. The vehicle equations are formed by using a matrix method by the assemblage of spring-dampers and rigid links, and the bridge formulations are decoupled using the modal method. The Newmark method is then used to analyze these vehicle-bridge equations. Variable speed, road irregularities, vehicle eccentricities, and multiple vehicles are considered. The comparison of the beam displacements between the current and finite-element methods indicates that the accuracy of this method is acceptable.
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Information
Published In
Journal of Engineering Mechanics
Volume 137 • Issue 11 • November 2011
Pages: 713 - 721
Copyright
© 2011 American Society of Civil Engineers.
History
Received: Aug 11, 2008
Accepted: Jun 2, 2011
Published online: Jun 4, 2011
Published in print: Nov 1, 2011
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