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

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Listed:
  • Yuanxun Zheng
  • Zhanlin Cao
  • Pan Guo
  • Pu Gao
  • Peng Zhang
  • Mojtaba Ahmadieh Khanesar

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.

Suggested Citation

  • Yuanxun Zheng & Zhanlin Cao & Pan Guo & Pu Gao & Peng Zhang & Mojtaba Ahmadieh Khanesar, 2021. "Fatigue Performance of Steel-Concrete Composite Continuous Box Girder Bridge Deck," Complexity, Hindawi, vol. 2021, pages 1-15, June.
    • Handle: RePEc:hin:complx:6610830
    DOI: 10.1155/2021/6610830
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