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The qualitative influence of model parameters on the dynamic response of a viaduct

journal contribution
posted on 2022-05-30, 13:34 authored by Andre JesusAndre Jesus, Z Dimitrovová, MAG Silva

The qualitative influence of several model parameters on the dynamic response of a railways viaduct, modelled after an actual structure located in Santana do Cartaxo, Portugal, is analysed through a parametric statistical analysis. Two-level factorial experimentation was carried out with the help of a parametric model of the viaduct developed with ANSYS APDL. The range of values admitted for the key parameters and the corresponding deviations from mean values were evaluated from data made accessible by the road authorities and experience. For the sake of simplicity only one axle load was applied on a single module of the viaduct. It was concluded that the analysis of individual effects is satisfactory to obtain key results based on maximum displacements. Nevertheless, regarding peak accelerations, especially at the viaduct deck, interaction effects are important and the influence of key parameters cannot be analysed individually. Therefore, simultaneous consideration of several key parameters provides a better representation of reality associated with the application of statistical analysis.

Funding

Fundação para a Ciência e a Tecnologia of the Portuguese Ministry of Science and Technology, through the project grant PTDC/EME-PME/01419/2008: “SMARTRACK - SysteM dynamics Assessment of Railway TRACKs: a vehicle-infrastructure integrated approach”

History

School

  • Architecture, Building and Civil Engineering

Published in

International Journal of Railway Technology

Volume

1

Issue

2

Pages

89 - 113

Publisher

Saxe-Coburg Publications

Version

  • VoR (Version of Record)

Rights holder

© Saxe-Coburg Publications

Publisher statement

This paper was published in the journal International Journal of Railway Technology and is available at https://doi.org/10.4203/ijrt.1.2.5

Publication date

2012-04-01

Copyright date

2012

ISSN

2049-5358

Language

  • en

Depositor

Dr Andre Jesus. Deposit date: 27 May 2022

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