Prediction accuracy of fatigue-relevant load effects in an orthotropic deck

Johan Maljaars (Corresponding author), Stefan Verdenius, H. Burggraaf, Sjors van Es

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Abstract

The accuracy of stress estimates in Orthotropic Bridge Decks (OBD) may be negatively impacted by the complex load transfer and asphalt properties. Yet, accurate stress estimates are crucial for optimal fatigue verifications. A field measurement and modelling study has been conducted to evaluate the accuracy of finite element (FE) models. The level of detail of the FE model resembled engineering practice. Measurements comprised of strains caused by normal flowing traffic and by single vehicles with known load. The study gave insight into the distribution of the transverse vehicle location, dynamic vehicle–bridge deck interaction, and the asphalt influence. Comparing with international guidelines, the prediction error of FE models of OBDs is on the edge of acceptable.
Original languageEnglish
Article number108459
Number of pages14
JournalJournal of Constructional Steel Research
Volume214
DOIs
Publication statusPublished - Mar 2024

Funding

This study was sponsored by Rijkswaterstaat .

FundersFunder number
Ministerie van Infrastructuur en Waterstaat

    Keywords

    • Orthotropic bridge deck
    • Field tests
    • Model uncertainty
    • Fatigue
    • Asphalt influence

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