Calibration of partial safety factors for fatigue design of steel bridges

The aim of this paper is to propose a new framework for assessment of fatigue partial safety factors with focus on steel bridges welded joints. Fatigue resistance S-N curves for constant amplitude (CA) and variable amplitude (VA) loadings are defined using a novel probabilistic approach based on Maximum Likelihood (ML) and Monte-Carlo Simulations (MCS) methods. The proposed framework includes ML-MCS-based S-N curves of different welded detail categories and it is applicable for the case of deterministic and probabilistic CA loadings as well as for VA loadings. One example is developed, that of a typical bridge fatigue sensitive welded joint. The results are compared to Eurocode standards both in terms of partial safety factor values and of characteristic S-N curves.


Editor(s):
Haukaas, Terje
Published in:
Proceedings of the 12th International Conference on Applications of Statistics and Probability in Civil Engineering (ICASP12).
Presented at:
12th International Conference on Applications of Statistics and Probability in Civil Engineering (ICASP12)., Vancouver, Canada, July 12-15, 2015
Year:
2015
Laboratories:


Note: The status of this file is: Involved Laboratories Only


 Record created 2015-07-22, last modified 2018-09-13

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