Research on Identification of Time-Varying Cable Force
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Bibliographic Details
| Author(s): |
Junzheng Zhang
(CCCC Second Harbor Engineering Company LTD., Wuhan 430040, China; Key Laboratory of Large-span Bridge Construction Technology, Wuhan 430040, China; CCCC Highway Bridge National Engineering Research Centre Co. Ltd, Wuhan 430040, China)
Ruili Shen (Professor, School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Bridges and Structures: Connection, Integration and Harmonisation, Nanjing, People's Republic of China, 21-23 September 2022 | ||||
| Published in: | IABSE Congress Nanjing 2022 | ||||
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| Page(s): | 1304-1312 | ||||
| Total no. of pages: | 9 | ||||
| DOI: | 10.2749/nanjing.2022.1304 | ||||
| Abstract: |
Cables have been widely used in the construction of cable-supported bridge due to their light weight and high strength mechanical properties. As the key component of cable supported bridge, real-time monitoring of the time-varying cable force of cable is very important for the construction, operation and maintenance of long-span bridges. Based on the time-frequency analysis method of multisynchrosqueezing transform, a new identification method of time-varying cable force is proposed. First, the theory of time-varying modal parameter identification based on time-frequency analysis method is studied. On this basis, the relationship between the time-varying cable force and the instantaneous natural frequency is obtained. Finally, the accuracy of the proposed method under different conditions is studied. The results show that the proposed time-varying cable force identification method has good accuracy and robustness. |
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| Keywords: |
time-frequency analysis cables and hangers of bridge time-varying cable force multisynchrosqueezing transform
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| Copyright: | © 2022 International Association for Bridge and Structural Engineering (IABSE) | ||||
| License: | This creative work is copyrighted material and may not be used without explicit approval by the author and/or copyright owner. |
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