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

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

doi:10.4203/ccp.71.13.1

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.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	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 doi:10.4203/ccp.71.13.1 purchase the full-text of this paper 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)
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