Computational & Technology Resources
an online resource for computational,
engineering & technology publications
Civil-Comp Proceedings
ISSN 1759-3433
CCP: 71
COMPUTATIONAL CIVIL AND STRUCTURAL ENGINEERING
Edited by: G. De Roeck and B.H.V. Topping
Paper XIII.1

Vibrations of Short Span Railway Bridges for High Speed Lines

P. Museros, M.L. Romero, A. Poy and E. Alarcon

Departamento de Mecánica Estructural y Construcciones Industriales, Universidad Politécnica de Madrid, Madrid, Spain

Full Bibliographic Reference for this paper
P. Museros, M.L. Romero, A. Poy, E. Alarcon, "Vibrations of Short Span Railway Bridges for High Speed Lines", in G. De Roeck, B.H.V. Topping, (Editors), "Computational Civil and Structural Engineering", Civil-Comp Press, Edinburgh, UK, pp 275-284, 2000. doi:10.4203/ccp.71.13.1
Abstract
The physical model based on moving constant loads is widely used for the analysis of railway bridges. Nevertheless, this model is not well-suited for the study of short span bridges (L<=15-20 m), and the results it produces (displacements and accelerations) are much greater than those obtained experimentally. In this paper two factors are analysed which are believed to have an influence in the dynamic behaviour of short bridges. These two factors are not accounted for by the moving loads model and are the following: the distribution of the loads due to the presence of the sleepers and ballast layer, and the train-bridge interaction. Several numerical simulations have been performed in order to decide on their influence, and the results are presented and discussed herein.

purchase the full-text of this paper (price £20)

go to the previous paper
go to the next paper
return to the table of contents
return to the book description
purchase this book (price £75 +P&P)