Theoretical Research on Damage Assessment of Suspension Cables Based on Vehicle-Induced Cable Force Ratio

DOI

10.2991/978-94-6463-726-7_74How to use a DOI?

Keywords

suspension bridge; multiple vehicles; cable damage; vehicle-induced cable force

Abstract

Given the critical role of suspender cables in bridge structures, their damage assessment is of paramount importance. To further investigate the damage assessment of suspender cables by vehicle-induced cable forces in multi-vehicle scenarios, this paper focuses on assessing suspender damage using data from single-lane vehicle-induced cable forces. Initially, by leveraging the relationship between cable force influence lines and vehicle-induced cable forces, multiple vehicle-induced cable force peaks are combined (referred to as the peak sum), and a method (upstream-downstream cable force ratio) is employed as the damage indicator. Subsequently, the cable force data under different conditions are obtained by using the finite element model. Ultimately, the damage indicators are validated using data from scenarios involving 1-st, 3-rd, 4-th, and 6-rh lanes. The results indicate that, relative to the 1st-lane and 6th-lane scenarios, the damage indicator demonstrates the most significant trend and the minimum standard deviation in the 3rd-lane and 4th-lane conditions. Within the context of the 3-rd lane, the damage indicator exhibits variation rates of 11.3% and 27.1% for damages at 2% and 5%, respectively, signifying its capability to effectively detect suspender damage. In order to verify the robustness of the method, Gaussian white noise is added to verify the method.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Bo Li
AU  - Ye Xia
AU  - Jipeng Yang
AU  - Ji Qian
PY  - 2025
DA  - 2025/06/13
TI  - Theoretical Research on Damage Assessment of Suspension Cables Based on Vehicle-Induced Cable Force Ratio
BT  - Proceedings of the 2024 6th International Conference on Hydraulic, Civil and Construction Engineering (HCCE 2024)
PB  - Atlantis Press
SP  - 736
EP  - 746
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-726-7_74
DO  - 10.2991/978-94-6463-726-7_74
ID  - Li2025
ER  -