Probabilistic Model for Fatigue Crack Growth in Welded Bridge Details
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Bibliographic Details
| Author(s): |
Henrik Stensgaard Toft
John Dalsgaard Sørensen Thierry Yalamas Julien Baussaron |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Conference: Assessment, Upgrading and Refurbishment of Infrastructures, Rotterdam, The Netherlands, 6-8 May 2013 | ||||
| Published in: | IABSE Conference, Rotterdam, May 2013 | ||||
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| Page(s): | 448-449 | ||||
| Total no. of pages: | 8 | ||||
| Year: | 2013 | ||||
| DOI: | 10.2749/222137813806520938 | ||||
| Abstract: |
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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| Keywords: |
steel fatigue reliability traffic load fracture mechanics welded details
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