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Vibration Analysis for Pendent Pedestrian Path of a Long-Span Extradosed Bridge

Author

Listed:
  • Chuanjie Cui

    (College of Civil Engineering, Tongji University, Shanghai 200092, China)

  • Rujin Ma

    (College of Civil Engineering, Tongji University, Shanghai 200092, China)

  • Xiaohong Hu

    (College of Civil Engineering, Tongji University, Shanghai 200092, China)

  • Wuchao He

    (Shanghai Municipal Engineering Design Institute (Group) Co., Ltd., Shanghai 200092, China)

Abstract

Pendent pedestrian path is a new structure form in long-span city bridges to satisfy vehicle passing demand and pedestrian passing demand simultaneously. For such design form, besides the traditional comfort problem caused by pedestrians, the vibration induced by upper passing vehicles and oncoming turbulent wind also cannot be ignored. In this research, the vibration characteristics of the pendent pedestrian path induced by pedestrians, upper vehicles, and turbulent wind are all investigated based on a designed long-span extradosed bridge. The results show that the design of the pedestrian path could satisfy the comfort demands comprehensively regardless of the local magnification effects of pedestrian path vibration. Reducing the spacing of the supported beam is meaningful for suppressing the local vibration effects. The road roughness of the upper pavement has significant effects on the maximum acceleration of pedestrian paths while the influence of the vehicle speed is relatively limited. An approximate quadratic relationship is observed between the buffeting-induced acceleration and the oncoming wind speed. Thus, the pedestrian path should be closed during strong winds.

Suggested Citation

  • Chuanjie Cui & Rujin Ma & Xiaohong Hu & Wuchao He, 2019. "Vibration Analysis for Pendent Pedestrian Path of a Long-Span Extradosed Bridge," Sustainability, MDPI, vol. 11(17), pages 1-15, August.
    • Handle: RePEc:gam:jsusta:v:11:y:2019:i:17:p:4664-:d:261436
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    Citations

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    Cited by:

    1. Shuo Yang & Jianrong Yang & Rui Li, 2023. "Evaluation of Pedestrian Comfort for a Footbridge with Hinged Piers," Sustainability, MDPI, vol. 15(13), pages 1-14, June.
    2. Lianhuo Wu & Mingjin Zhang & Fanying Jiang & Zelin Zhou & Yongle Li, 2023. "An Analytical Solution for Unsteady Aerodynamic Forces on Streamlined Box Girders with Coupled Vibration," Sustainability, MDPI, vol. 15(9), pages 1-14, April.
    3. Xiaoming Lei & Limin Sun & Ye Xia & Tiantao He, 2020. "Vibration-Based Seismic Damage States Evaluation for Regional Concrete Beam Bridges Using Random Forest Method," Sustainability, MDPI, vol. 12(12), pages 1-18, June.
    4. Lianhuo Wu & Zelin Zhou & Jinxiang Zhang & Mingjin Zhang, 2023. "A Numerical Method for Conformal Mapping of Closed Box Girder Bridges and Its Application," Sustainability, MDPI, vol. 15(7), pages 1-13, April.

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