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A calibrated verification model for fatigue assessment of road bridges
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.ORCID iD: 0000-0002-2833-4585
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.ORCID iD: 0000-0002-3699-0814
2019 (English)In: Proceeding of Nordic Steel 2019, 2019Conference paper, Published paper (Refereed)
Abstract [en]

The format suggested in the Eurocode for fatigue verification of road bridges is under scrutiny in thispaper. The model is easy to use in practice, which is important for design purposes, but its accuracyhas been questioned. For this reason, a reliability-based evaluation of the safety level has beenperformed and is briefly recapitulated in this paper. It shows a large scatter in reliability index rangingfrom unacceptably low to overly conservative. A calibration of the existing model has been performedshowing a more consistent reliability level. Results from comparisons of the existing and calibratedmodels are shown for real bridges considering the influence on design stress ranges. The results showthat the Eurocode model is conservative for short span bridges subjected to low traffic volume. Forother cases, the Eurocode model is non-conservative.

Place, publisher, year, edition, pages
2019.
Keywords [en]
Steel bridge; Fatigue; Reliability; Eurocode; Calibration
National Category
Civil Engineering
Identifiers
URN: urn:nbn:se:kth:diva-259748DOI: 10.1002/cepa.1098OAI: oai:DiVA.org:kth-259748DiVA, id: diva2:1353368
Conference
The 14th Nordic Steel Construction Conference (NSCC)
Note

QC 20191111

Available from: 2019-09-23 Created: 2019-09-23 Last updated: 2019-11-11Bibliographically approved

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Citation style
  • apa
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  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
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  • text
  • asciidoc
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