Load testing on a high railway bridge to determine the longitudinal stiffness of the substructure

Research output: Contribution to journalConference articleContributedpeer-review

Contributors

  • M. Wenner - , MKP GmbH (Author)
  • F. Wedel - , MKP GmbH (Author)
  • T. Meier - , Baugrund Dresden Ingenieurgesellschaft mbH (Author)
  • S. Marx - , Leibniz University Hannover (LUH) (Author)

Abstract

Regarding the design of longer railway bridges, the track-bridge-interaction plays a decisive role because of the high braking and acceleration forces as well as the connection of the rail with the superstructure. A fundamental parameter by calculating the effects of track-bridge-interaction is the longitudinal stiffness of piers and abutments with horizontally fixed bearings. The horizontal equivalent stiffness is commonly calculated by a pile grillage model. In the case of the Itz valley railway viaduct, the stiffness has been determined experimentally by a static diagnostic load test to allow the verification of the additional rail stresses and the bearing forces with verified input parameters. Associated with the experiments, numerical analysis of the foundation in a 3D FE model of the soil has been carried out. In this article the design, execution and evaluation of the experiment will be presented. Subsequently, the results of the test will be compared with the calculated prediction of the evaluated models.

Details

Original languageEnglish
Pages (from-to)123-129
Number of pages7
JournalLife-Cycle Civil Engineering : Proceedings
Publication statusPublished - 2019
Peer-reviewedYes
Externally publishedYes

Conference

Title6th International Symposium on Life-Cycle Civil Engineering, IALCCE 2018
Duration28 - 31 October 2018
CityGhent
CountryBelgium

External IDs

ORCID /0000-0001-8735-1345/work/142244560