Fatigue Performance of Steel-Concrete Composite Continuous Box Girder Bridge Deck

Yuanxun Zheng, Zhanlin Cao, Pan Guo, Pu Gao, Peng Zhang and Mojtaba Ahmadieh Khanesar

Complexity, 2021, vol. 2021, 1-15

Abstract: The fatigue performance of the bridge deck significantly affects the safety and durability of the overall steel-concrete composite beam bridge. Based on the vehicle flow information of the highway within 10 years, the fatigue performance of a two-way four-lane steel-concrete composite continuous beam bridge deck is studied in this research. The results indicate that the effect of the wheel track position is negligible for two-way four-lane bridge when the wheel track sways laterally, and the fatigue stress of bridge deck concrete is the most unfavorable while the loading position is 7.0 m away from the bridge center line. The fatigue damage decreases by 30%–40% when the centerline of the lane deviates from the most unfavorable stress position by 1 m. The punching fatigue of the concrete is more sensitive to the changes in slab thickness, and the thickness of the deck concrete slab is recommended to be ≥35 cm.

Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:hin:complx:6610830

DOI: 10.1155/2021/6610830

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