Ermittlung von Inspektionsintervallen für Rissprüfungen an historischen genieteten Eisenbahnbrücken auf Basis der Bruchmechanik - Teil 2

Translated title of the contribution: Reasonable periods of inspection for crack detection on historical riveted railway bridges based on fracture mechanics – part 2

Harald Unterweger*, Christoph Derler

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

An assessment of the remaining fatigue life based on SN-curves often leads to conservative and imponderable results, because of the high effect of the fatigue damage in the past with minor knowledge of the associated service trains. For a representative single span truss bridge an alternative assessment based on fracture mechanics was done, with calibrated models based on fatigue tests on dismounted historical girders and stress spectra based on numerical simulations of the crossing of the individual service trains. This was the content of part 1 of this paper. Based on the assumption of a starting crack length detectable at regular inspections, remaining fatigue life are calculated for the individual bridge members, leading to a proposal of accurate time periods for inspection. This topic is the content of this part 2 of the paper, including also comprehensive parameter variations to allow a generalization for other historical riveted railway bridges.

Translated title of the contributionReasonable periods of inspection for crack detection on historical riveted railway bridges based on fracture mechanics – part 2
Original languageGerman
Pages (from-to)378-385
JournalStahlbau
Volume90
Issue number5
DOIs
Publication statusPublished - 2021

Fields of Expertise

  • Sustainable Systems

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