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Probabilistic Model for Fatigue Crack Growth in Welded Bridge Details

 Probabilistic Model for Fatigue Crack Growth in Welded Bridge Details
Auteur(s): , , ,
Présenté pendant IABSE Conference: Assessment, Upgrading and Refurbishment of Infrastructures, Rotterdam, The Netherlands, 6-8 May 2013, publié dans , pp. 448-449
DOI: 10.2749/222137813806520938
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In the present paper a probabilistic model for fatigue crack growth in welded steel details in road bridges is presented. The probabilistic model takes the influence of bending stresses in the join...
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Détails bibliographiques

Auteur(s):



Médium: papier de conférence
Langue(s): anglais
Conférence: IABSE Conference: Assessment, Upgrading and Refurbishment of Infrastructures, Rotterdam, The Netherlands, 6-8 May 2013
Publié dans:
Page(s): 448-449 Nombre total de pages (du PDF): 8
Page(s): 448-449
Nombre total de pages (du PDF): 8
Année: 2013
DOI: 10.2749/222137813806520938
Abstrait:

In the present paper a probabilistic model for fatigue crack growth in welded steel details in road bridges is presented. The probabilistic model takes the influence of bending stresses in the joints into account. The bending stresses can either be introduced by e.g. misalignment or redistribution of stresses in the structure. The fatigue stress ranges are estimated from traffic measurements and a generic bridge model. Based on the probabilistic models for the resistance and load the reliability is estimated for a typical welded steel detail. The results show that large misalignments in the joints can have a significant influence on the reliability level.

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