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Volume 12
Issue 10
10.3390/met12101739
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Article

Fatigue Resistance Analysis of the Orthotropic Steel Deck with Arc-Shaped Stiffener

by
Peng Liu
1,
Yixuan Chen
1,
Hongping Lu
1,
Jian Zhao
2,
Luming An
2 and
Yuanqing Wang
3,*
1
School of Architecture and Civil Engineering, Shenyang University of Technology, Shenyang 110870, China
2
China Railway Construction Bridge Engineering Group Co., Ltd., Beijing 100039, China
3
Department of Civil Engineering, Tsinghua University, Beijing 100084, China
*
Author to whom correspondence should be addressed.
Metals 2022, 12(10), 1739; https://doi.org/10.3390/met12101739
Submission received: 9 September 2022 / Revised: 12 October 2022 / Accepted: 14 October 2022 / Published: 17 October 2022
(This article belongs to the Special Issue Deformation and Torsional Fatigue Behaviour of Steels and Uniaxial Stress Tests)
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Abstract

The orthotropic steel deck is widely used in long-span steel bridges due to its simplicity and efficiency. The welded joint of the U-rib to e deck panel area is extremely sensitive to fatigue cracks. In this study, an orthotropic steel deck with an arc-shape stiffener was proposed that aimed to alleviate the fatigue cracks and enhance the fatigue resistance in long-span steel bridges. Based on the Mingzhu Bay steel bridge, the proposed steel deck FE model was first established. Then, the moving vehicle load was applied to investigate the impact of the arc-shape stiffener on the fatigue stress amplitude and distribution. The Miner fatigue cumulative damage theory was employed to evaluate the fatigue life of the orthotropic steel deck with arc-shaped stiffener, and comparative analyses were carried out. Finally, the results show the maximum stress of the orthotropic steel deck with an arc-shaped stiffener is reduced by 15%, and the fatigue life is improved by 40% compared with the OSD.
Keywords: arc-shaped stiffener; finite element model; fatigue resistance; fatigue life evaluation; orthotropic steel bridge deck arc-shaped stiffener; finite element model; fatigue resistance; fatigue life evaluation; orthotropic steel bridge deck

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MDPI and ACS Style

Liu, P.; Chen, Y.; Lu, H.; Zhao, J.; An, L.; Wang, Y. Fatigue Resistance Analysis of the Orthotropic Steel Deck with Arc-Shaped Stiffener. Metals 2022, 12, 1739. https://doi.org/10.3390/met12101739

AMA Style

Liu P, Chen Y, Lu H, Zhao J, An L, Wang Y. Fatigue Resistance Analysis of the Orthotropic Steel Deck with Arc-Shaped Stiffener. Metals. 2022; 12(10):1739. https://doi.org/10.3390/met12101739

Chicago/Turabian Style

Liu, Peng, Yixuan Chen, Hongping Lu, Jian Zhao, Luming An, and Yuanqing Wang. 2022. "Fatigue Resistance Analysis of the Orthotropic Steel Deck with Arc-Shaped Stiffener" Metals 12, no. 10: 1739. https://doi.org/10.3390/met12101739

APA Style

Liu, P., Chen, Y., Lu, H., Zhao, J., An, L., & Wang, Y. (2022). Fatigue Resistance Analysis of the Orthotropic Steel Deck with Arc-Shaped Stiffener. Metals, 12(10), 1739. https://doi.org/10.3390/met12101739

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