Evaluation of the contact area of lorry tyres in Eurocode’s fatigue load model 4 (FLM4)
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Bibliographic Details
| Author(s): |
Sjoerd Hengeveld
(TNO, Delft, The Netherlands)
Adri Vervuurt (TNO, Delft, The Netherlands) Johan Maljaars (TNO, Delft, The Netherlands; Eindhoven University of Technology, Eindhoven, The Netherlands) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Structural Engineering for Future Societal Needs, Ghent, Belgium, 22-24 September 2021 | ||||
| Published in: | IABSE Congress Ghent 2021 | ||||
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| Page(s): | 1488-1495 | ||||
| Total no. of pages: | 8 | ||||
| DOI: | 10.2749/ghent.2021.1488 | ||||
| Abstract: |
Fatigue considerations dominate the design of new, innovative steel bridge decks. Weighing bridge deck al- ternatives requires representative values for contact areas and contact stress distributions of the tyres of heavy vehicles. Fatigue load model 4 in the Eurocode EN 1991-2 (FLM4) provides tyre contact areas together with a set of axle loads. The literature survey presented herein shows that the length of the contact area in FLM4 is too large. The consequence of using a more realistic – i.e. shorter – tyre contact length together with a non-uniform contact stress distribution that is observed in practice, is that the contact stresses increase. As a result, the load effect and the fatigue life of some bridge deck details reduce, as is shown by the analyses presented in this paper. A method is proposed for determining an updated tyre contact area for the FLM4 Eurocode model, leading to a more realistic fatigue damage analyses. |
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| Keywords: |
fatigue steel bridge deck FLM4 lorry tyre contact area
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| Copyright: | © 2021 International Association for Bridge and Structural Engineering (IABSE) | ||||
| License: | This creative work is copyrighted material and may not be used without explicit approval by the author and/or copyright owner. |
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