Probabilistic Model for Fatigue Crack Growth in Welded Bridge Details
| Autor: | John Dalsgaard Sørensen, Thierry Yalamas, Julien Baussaron, Henrik Stensgaard Toft |
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| Přispěvatelé: | IABSE Switzerland, null, IABSE Switzerland |
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | Toft, H S, Sørensen, J D, Yalamas, T & Baussaron, J 2013, Probabilistic Model for Fatigue Crack Growth in Welded Bridge Details . in IABSE S (ed.), IABSE Conference Rotterdam 2013 : Assessment, upgrading and refurbishment of infrastructures . vol. 99, International Association for Bridge and Structural Engineering, IABSE Conference Reports, vol. 99, pp. 448-449, IABSE Conference Rotterdam 2013, Rotterdam, Netherlands, 06/05/2013 . Toft, H S, Sørensen, J D, Yalamas, T & Baussaron, J 2013, Probabilistic Model for Fatigue Crack Growth in Welded Bridge Details . in IABSE S (ed.), IABSE Conference Rotterdam 2013 : Assessment, upgrading and refurbishment of infrastructures . International Association for Bridge and Structural Engineering, IABSE Conference Rotterdam 2013, Rotterdam, Netherlands, 06/05/2013 . |
| Popis: | 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. 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. |
| Databáze: | OpenAIRE |
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