Original title: Dynamic Interactions of a Train Moving Over a Rail Suspension Bridge with Multiple Support Settlements
Authors: Yau, Y. D. ; Frýba, Ladislav
Document type: Papers
Conference/Event: International Conference on Vibrational Problems 2011, Praha (CZ), 2011-09-05 / 2011-09-08
Year: 2011
Language: eng
Abstract: With the consideration of multiple support settlements, interaction responses of a train running over a rail suspension bridge will be investigated. The suspension bridge is modeled as a single-span suspended beam with hinged ends and the train as successive moving oscillators with identical properties. To conduct this dynamic problem with non-homogeneous boundary conditions, the total deflection response of the suspended beam is divided into two parts: the static component and the dynamic deflection. Then, the coupled equations of motion for the suspended beam carrying multiple moving oscillators are converted into a set of nonlinearly coupled generalized equations by Galerkin’s method, and solved using the Newmark method using incremental-iterative procedure. From the present numerical demonstrations, the differential movements of bridge supports will significantly affect the dynamic response of the running vehicles but insignificant influence on the bridge response.
Keywords: ground settlement; high speed train; suspension bridge; vehicle/bridge interactions
Project no.: CEZ:AV0Z20710524 (CEP), NSC 97-2221-E-032-022-MY2
Funding provider: National Science Council of Taiwan
Host item entry: Vibration Problems ICOVP 2011 - Supplement, ISBN 978-80-7372-759-8

Institution: Institute of Theoretical and Applied Mechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0199765

Permalink: http://www.nusl.cz/ntk/nusl-55932


The record appears in these collections:
Research > Institutes ASCR > Institute of Theoretical and Applied Mechanics
Conference materials > Papers