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Dynamic Modeling Method and Vehicle Responses of the Floating Bridge Considering the Stiffness of Connected Hinges and Supported Pontoons
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Zhuangpeng Yi1, 2, †, Hongzhi Zhu1, 2, Yujie Li1, 2, Liyu Xiao1, 2, Youyi Zeng1, 2, Quan Pan1, 2
Journal of Dynamics and Control | 2025, 23(10) : 26 - 34
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Journal of Dynamics and Control | 2025, 23(10): 26-34
• Research Articles •
Dynamic Modeling Method and Vehicle Responses of the Floating Bridge Considering the Stiffness of Connected Hinges and Supported Pontoons
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Zhuangpeng Yi1, 2, †, Hongzhi Zhu1, 2, Yujie Li1, 2, Liyu Xiao1, 2, Youyi Zeng1, 2, Quan Pan1, 2
Affiliations
  • 1. School of Civil Engineering, Changsha University of Science and Technology, Changsha　410114, China
  • 2. Key Laboratory of Bridge Engineering Safety Control by Department of Education, Changsha University of Science and Technology, Changsha　410114,China
doi: 10.6052/1672-6553-2025-037
Outline
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For a new type of multi-segment pontoon bridge with alternately supported floats in the span range, a theoretical model of the dynamic response is established which can simultaneously consider the roles of connection hinge stiffness and float support stiffness.In the model, the pontoon segments are regarded as Euler-Bernoulli beams with hinges at both ends, while the action of the floating body and the hydrostatic water is equivalent to the elastic support distributed along the length of the beams. The adjacent segments are connected by hinges with rotational stiffness.The relationship between the structural self-resonance characteristics and the moving vehicle load response with the above two stiffness parameters is investigated.The results show that the proposed method can effectively obtain the response sensitivity interval of the floating body support stiffness and the rotational stiffness of the connection hinges. As the rotational stiffness increases, the segment connection transitions from articulation to rigidity, and the relative angle of the two ends of the hinged joint in the modal state is changed from the “sharp angle” mutation form to the smooth form. When the rotational stiffness is smaller, there is the vertical direction of the connection.When the rotational stiffness is small, significant vertical displacement extremes and corner mutations occurs on the connection；however once the stiffness reaches a certain value, the structural displacement and internal force envelope tends to be stable.

floating bridge structure  /  pontoon alternating support  /  rotational stiffness of connecting hinge  /  frequency and mode  /  responses by moving vehicles
Zhuangpeng Yi, Hongzhi Zhu, Yujie Li, Liyu Xiao, Youyi Zeng, Quan Pan. Dynamic Modeling Method and Vehicle Responses of the Floating Bridge Considering the Stiffness of Connected Hinges and Supported Pontoons[J]. Journal of Dynamics and Control, 2025 , 23 (10) : 26 -34 . DOI: 10.6052/1672-6553-2025-037
Funding
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  • National Natural Science Foundation of China(52278139; 52278141)
  • National Science Fund of Hunan Province(2022JJ30612)
  • Key Discipline Funds for Civil Engineering of Changsha University of Science and Technology(18ZDXK05; 15ZDXK01)
Appendix
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Year 2025 volume 23 Issue 10
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92
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Article Info
doi: 10.6052/1672-6553-2025-037
  • Receive Date：2025-04-01
  • Online Date：2026-03-20
Article Data
Affiliations
History
  • Received：2025-04-01
  • Revised：2025-04-15
Funding
National Natural Science Foundation of China(52278139; 52278141)
National Science Fund of Hunan Province(2022JJ30612)
Key Discipline Funds for Civil Engineering of Changsha University of Science and Technology(18ZDXK05; 15ZDXK01)
Affiliations
    1. School of Civil Engineering, Changsha University of Science and Technology, Changsha　410114, China
    2. Key Laboratory of Bridge Engineering Safety Control by Department of Education, Changsha University of Science and Technology, Changsha　410114,China
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表12种不同金属材料的力学参数
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Number of
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Number of
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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