|Table of Contents|

[1] Hui Yi, Xu Liang,. Parametric analysis of the nonlinear primary resonance of spatial cable suspension bridges [J]. Journal of Southeast University (English Edition), 2024, 40 (2): 165-175. [doi:10.3969/j.issn.1003-7985.2024.02.007]
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Parametric analysis of the nonlinear primary resonance of spatial cable suspension bridges()
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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:
40
Issue:
2024 2
Page:
165-175
Research Field:
Traffic and Transportation Engineering
Publishing date:
2024-06-13

Info

Title:
Parametric analysis of the nonlinear primary resonance of spatial cable suspension bridges
Author(s):
Hui Yi1;  Xu Liang2
1School of Civil Engineering, Chongqing University, Chongqing 400030, China
2School of Civil Engineering, Suzhou University of Science and Technology, Suzhou 215011, China
Keywords:
suspension bridge;  spatial cable;  nonlinear dynamics;  multiple scale method;  primary resonance
PACS:
U441.3
DOI:
10.3969/j.issn.1003-7985.2024.02.007
Abstract:
A comprehensive model based on continuum theory is adopted to conduct the parametric analysis of the primary resonance of the nonlinear vibration of spatial cable suspension bridges. This model can simultaneously account for the geometric nonlinearity of both the vertical motion of the deck and the vertical-horizontal motion of the cable. Based on this model and the multiple scale method(MSM), the modulation equations of the primary resonance responses are derived for spatial cable suspension bridges. Nonlinear coefficients in the modulation equations are determined to have notable influences on the maximum response amplitude of the primary resonance of the system and the hardening or softening characteristics of the investigated vibration mode. Meanwhile, system parameters, such as the inclination angles of the main cable and hanger, the sag-to-span ratio of the cable, and the tensile stiffness ratio between the deck and cable, can notably influence the nonlinear coefficient. The dynamic properties of the system can change dramatically in the form of sudden changes in the nonlinear coefficient of the symmetric vibration of the deck and cable if the parameter is located near the singularity, which should be avoided in the design of the system. This study can provide reference for the design of the bridge structure.

References:

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Memo

Memo:
Biography: Hui Yi(1985—), male, doctor, professor, alihui@cqu.edu.cn.
Foundation items: The Scientific Research Foundation of Suzhou University of Science and Technology(No.332311106), the National Natural Science Foundation of China(No. 52078087), 111 Project of the Ministry of Education and the Bureau of Foreign Experts of China(No. B18062).
Citation: Hui Yi, Xu Liang.Parametric analysis of the nonlinear primary resonance of spatial cable suspension bridges[J].Journal of Southeast University(English Edition), 2024, 40(2):165-175.DOI:10.3969/j.issn.1003-7985.2024.02.007.
Last Update: 2024-06-20