Abstract
To reduce the fatigue stress at the edge of the diaphragm opening of steel box girders, this paper built a finite element model of the steel box girders of the main bridge of Maputo Bridge to calculate the fatigue stress amplitude under wheel load at this location. Based on European standards, the cumulative damage method was employed to evaluate the fatigue performance of the structure and predict its fatigue life. Analysis shows that the original design cannot meet the fatigue life requirements after increasing heavy traffic volume. Therefore, this paper proposed two effective methods to reduce the fatigue stress amplitude at five fatigue locations. The first is to increase the thickness of the upper diaphragm, and the second is to add a small diaphragm 0.3 m away from the original diaphragm. The proposed measures for improving fatigue performance hold reference significance for the anti-fatigue design of orthotropic steel decks.
Publication Date
11-8-2022
DOI
10.14048/j.issn.1671-2579.2022.05.012
First Page
66
Last Page
71
Submission Date
April 2025
Recommended Citation
Bei, Yi; Guibin, Zhou; Shaoling, Ding; and Shangjie, Nie
(2022)
"Anti-Fatigue Design of Orthotropic Steel Deck of Maputo Bridge,"
Journal of China & Foreign Highway: Vol. 42:
Iss.
5, Article 12.
DOI: 10.14048/j.issn.1671-2579.2022.05.012
Available at:
https://zwgl1980.csust.edu.cn/journal/vol42/iss5/12
Reference
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