Experimental determination of the longitudinal pier stiffness of a long railway viaduct

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Wenner, M.; Meier, T.; Wedel, F.; Schacht, G.; Marx, S.: Experimental determination of the longitudinal pier stiffness of a long railway viaduct. In: Frontiers in Built Environment 5 (2019), 45. DOI: https://doi.org/10.3389/fbuil.2019.00045

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Sum total of downloads: 27

Track–bridge interaction plays a decisive role in the design of long railway bridges due to the high braking and acceleration forces that occur and the fact that the continuous rail is attached to the superstructure. A fundamental parameter for the calculation of the effects of track–bridge interaction is the equivalent longitudinal stiffness of piers and abutments with fixed bearings. The equivalent horizontal stiffness is commonly calculated using a pile group model. The static and “dynamic” stiffnesses of the Itz valley railway viaduct were determined experimentally by using a static diagnostic load test and a braking test, which allowed for the verification of the additional rail stresses and the bearing forces with realistic input parameters. Furthermore, numerical 3D FE analyses of the deep foundation system were carried out to provide class-A predictions of the experimental results. In this article, the experimental setup and the execution and evaluation of the two tests are presented. A comparison of the experimental results and the numerical predictions is also carried out.
License of this version: CC BY 4.0
Document Type: article
Publishing status: publishedVersion
Issue Date: 2019
Appears in Collections:Fakultät für Bauingenieurwesen und Geodäsie

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pos. country downloads
total perc.
1 image of flag of United States United States 12 44.44%
2 image of flag of Germany Germany 12 44.44%
3 image of flag of Turkey Turkey 1 3.70%
4 image of flag of France France 1 3.70%
5 image of flag of Australia Australia 1 3.70%

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