Journal
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
Volume 25, Issue 4, Pages 289-301Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.soildyn.2005.02.005
Keywords
high-speed trains; soil-structure interaction; boundary element methods; impulse response
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This work presents an efficient methodology for the analysis of vibrations in a railroad track system, induced by the passage of conventional and high-speed trains. To this end the Boundary Element Method is used to model the soil-tie system within the framework of impulse response techniques. Conventional Finite Element Methods along with Newmark's integration is used for the modeling of the rail system. The two methods are coupled at the tie-rail interface and the solution is obtained following a staggered, time marching scheme in an efficient manner. The methodology accounts for Soil-Structure Interaction and traveling wave effects. In addition, this work identifies the parameters that affect the efficient modeling of railroad track systems as they pertain to the proposed solution methodology. (c) 2005 Elsevier Ltd. All rights reserved.
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