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Volume 13
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10.3390/app13169197
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Article

Research on Dynamic Response of a Single-Tower Cable-Stayed Bridge with Successive Cable Breaks Based on a 3D Index

by
Yongjian Chen
1,
Song Wang
1,
Kai Huang
1,*,
Jiwei Zhong
2 and
Hui Cheng
2
1
College of Civil Engineering, Fuzhou University, Fuzhou 350108, China
2
Railway Bridge Science Research Institute, Ltd., Wuhan 430034, China
*
Author to whom correspondence should be addressed.
Appl. Sci. 2023, 13(16), 9197; https://doi.org/10.3390/app13169197
Submission received: 7 July 2023 / Revised: 30 July 2023 / Accepted: 4 August 2023 / Published: 12 August 2023
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Abstract

Aiming at the problem of cable breakage of an asymmetric single-tower cable-stayed bridge by taking a single-tower cable-stayed bridge that has been in operation for more than 20 years as an engineering example, a spatial finite element model that reflected the actual stress state of the structure was established and a method for solving the time point of cable breakage was proposed. The results show that the strength of the main girder, pylon and cable could meet the stress requirements of the vibration caused by successive cable breaks, and the maximum dynamic displacement of the main girder did not exceed the stiffness limit. Although the breakage of the stay cable caused the stress in the adjacent position and the corresponding position on the opposite side of the tower to increase sharply, the stress fluctuation in other positions was small. The fluctuation of the dynamic stress of the cable tower was relatively small, but the displacement of the tower top changed greatly. The dynamic response of the cables breaking in succession was less than that of simultaneous breaking, and the structural vibration caused by cable breaking was not as severe as that caused by simultaneous breaking.
Keywords: single tower; cable-stayed bridge; successive cable breaking; 3D index; dynamic response single tower; cable-stayed bridge; successive cable breaking; 3D index; dynamic response

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MDPI and ACS Style

Chen, Y.; Wang, S.; Huang, K.; Zhong, J.; Cheng, H. Research on Dynamic Response of a Single-Tower Cable-Stayed Bridge with Successive Cable Breaks Based on a 3D Index. Appl. Sci. 2023, 13, 9197. https://doi.org/10.3390/app13169197

AMA Style

Chen Y, Wang S, Huang K, Zhong J, Cheng H. Research on Dynamic Response of a Single-Tower Cable-Stayed Bridge with Successive Cable Breaks Based on a 3D Index. Applied Sciences. 2023; 13(16):9197. https://doi.org/10.3390/app13169197

Chicago/Turabian Style

Chen, Yongjian, Song Wang, Kai Huang, Jiwei Zhong, and Hui Cheng. 2023. "Research on Dynamic Response of a Single-Tower Cable-Stayed Bridge with Successive Cable Breaks Based on a 3D Index" Applied Sciences 13, no. 16: 9197. https://doi.org/10.3390/app13169197

APA Style

Chen, Y., Wang, S., Huang, K., Zhong, J., & Cheng, H. (2023). Research on Dynamic Response of a Single-Tower Cable-Stayed Bridge with Successive Cable Breaks Based on a 3D Index. Applied Sciences, 13(16), 9197. https://doi.org/10.3390/app13169197

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