Prediction accuracy of fatigue-relevant load effects in an orthotropic deck
article
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.
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.
TNO Identifier
993394
Source
Journal of Constructional Steel Research, 214, pp. 1-14.
Pages
1-14