| Issue |
MATEC Web Conf.
Volume 310, 2020
4th International Scientific Conference Structural and Physical Aspects of Construction Engineering (SPACE 2019)
|
|
|---|---|---|
| Article Number | 00012 | |
| Number of page(s) | 8 | |
| DOI | https://doi.org/10.1051/matecconf/202031000012 | |
| Published online | 05 March 2020 | |
Probabilistic fatigue analysis of existing steel structure
1
VSB-Technical University of Ostrava, Faculty of Civil Engineering, Department of Structural Mechanics, Ludvika Podeste 1875/17, 708 33 Ostrava-Poruba, Czech Republic
2
Institute of Physics of Materials of the Academy of Sciences of the Czech Republic, Zizkova 22, 616 62 Brno, Czech Republic
3
Brno University of Technology, Faculty of Civil Engineering, Institute of Structural Mechanics, Veveri 331/95, 602 00 Brno, Czech Republic
* Corresponding author: martin.krejsa@vsb.cz
The paper deals with evaluation of possible fatigue damage of existing steel crane structure. It is possible to use the some traditional methods to solve the problem - a concept of fatigue S-N curves (which are mainly used for designing of a new structures) or the procedures based on linear fracture mechanics utilizing the Paris-Erdogan’s law (which are suitable for estimation of remaining lifetime). For the resistance assessment the relevant data of load effects caused by cyclically loaded structure operation are necessary for both concepts. For the prediction of fatigue damage over time, calibration functions for short edge cracks were derived based on the results of the experiment, and the acceptable size of the fatigue crack in damaged structural component under analysis was determined. Using the derived relationships, a stochastic analysis of the selected element was performed and the results are discussed.
© The Authors, published by EDP Sciences, 2020
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