Einfeldrige Eisenbahnbrücken in Stahl- und Verbundbauweise - umfassende Beurteilung der Ermüdungsgefährdung bei Hochgeschwindigkeitsbetrieb

Translated title of the contribution: Single span steel and composite railway bridges – analyses of increased fatigue damage due to dynamic effects of high-speed trains

Harald Unterweger*, Andreas Schörghofer-Queiroz

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

In the case of steel and composite railway bridges, the fatigue design is often decisive. The stress ranges caused by service trains are covered in the form of damage equivalence factors λ, which, however, are based on a static analysis only. This article summarizes the overall results of a comprehensive numerical study on single-span steel and com-posite structures, with the aim of quantifying the fatigue da-mage from the dynamic train crossing Ddyn and comparing it with the current static design approach. By linking these re-sults with the other requirements for railway bridges in high-speed railway lines (vertical acceleration |av,max|), it is possible to clearly identify which bridge structures could be at risk with respect to the fatigue behaviour due to high-speed operation.
Translated title of the contributionSingle span steel and composite railway bridges – analyses of increased fatigue damage due to dynamic effects of high-speed trains
Original languageGerman
Pages (from-to)47-62
Number of pages16
JournalBauingenieur
Volume97
Issue number3
DOIs
Publication statusPublished - Mar 2022

ASJC Scopus subject areas

  • Building and Construction
  • Civil and Structural Engineering

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