Title: Local and global shape functions in a boundary element formulation for the calculation of traffic induced vibrations
Authors: Fran├žois, Stijn ×
Lombaert, Geert
Degrande, Geert #
Issue Date: Jan-2005
Publisher: Elsevier sci ltd
Series Title: Soil dynamics and earthquake engineering vol:25 issue:11 pages:839-856
Abstract: This paper compares the use of local and global shape functions in a boundary element method that is used in a prediction model for traffic induced vibrations. The boundary element formulation describes the interaction problem between a linear elastic layered half-space and a longitudinally invariant structure representing a road or a railway track. The boundary element formulation in the frequency-wavenumber domain is obtained by means of a weighted residual method. Constant element shape functions, as well as Legendre and Chebyshev shape functions are considered. Their effect on both accuracy and computational effort is investigated. The presence of a singularity in the Chebyshev based shape functions allows to obtain a better approximation for the soil tractions. The theory is applied to road traffic induced vibrations where the response is calculated in a large number of output points. (c) 2005 Elsevier Ltd. All rights reserved.
ISSN: 0267-7261
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Department of Civil Engineering - miscellaneous
Centre for Language and Education, Leuven
Structural Mechanics Section
× corresponding author
# (joint) last author

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