Comparative Assessment of Cable Force Optimization Methods for Asymmetric Cable-Stayed Bridges

Yinzhi Zeng; Wenjie Li; Shiwei Zhao; Xiang Wang; Jian Wang; Jiankun Liu

doi:10.2991/978-94-6463-726-7_26

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Comparative Assessment of Cable Force Optimization Methods for Asymmetric Cable-Stayed Bridges

Authors

Yinzhi Zeng¹, Wenjie Li², Shiwei Zhao¹, Xiang Wang²^{, *}, Jian Wang², Jiankun Liu²

¹China Construction Infrastructure Corp., Ltd., Beijing, 100089, China

²School of Civil Engineering, Sun Yat-Sen Univ., Zhuhai, 519000, China

^*Corresponding author. Email: wangxiang5@mail.sysu.edu.cn

Corresponding Author

Xiang Wang

Available Online 13 June 2025.

DOI: 10.2991/978-94-6463-726-7_26 How to use a DOI?
Keywords: Cable-stayed bridges; post-tensioning; cable forces; structural optimization
Abstract: Cable-stayed bridges have received extensive applications due to their superior structural efficiency for large spans and excellent aesthetic benefits. A well-optimized set of cable forces are critical for achieving the desired structural responses of a completed cable-stayed bridge under the specified loading conditions. In this study, the cable forces of an asymmetric cable-stayed bridge currently under construction are optimized and compared using genetic algorithms (GA) and particle swarm optimization (PSO) methods. The numerical model of the bridge is implemented in OpenSees in consideration of the cable sag effect and geometric nonlinearity. The strain energy-based and displacement-based objective functions are employed for the cable force optimization. Comparison of the results indicates that the PSO method tends to provide more reasonable force and displacement responses of the bridge at the expense of increased computational costs.
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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Volume Title: Proceedings of the 2024 6th International Conference on Hydraulic, Civil and Construction Engineering (HCCE 2024)
Series: Atlantis Highlights in Engineering
Publication Date: 13 June 2025
ISBN: 978-94-6463-726-7
ISSN: 2589-4943
DOI: 10.2991/978-94-6463-726-7_26 How to use a DOI?
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.

Cite this article

ris enw bib

TY  - CONF
AU  - Yinzhi Zeng
AU  - Wenjie Li
AU  - Shiwei Zhao
AU  - Xiang Wang
AU  - Jian Wang
AU  - Jiankun Liu
PY  - 2025
DA  - 2025/06/13
TI  - Comparative Assessment of Cable Force Optimization Methods for Asymmetric Cable-Stayed Bridges
BT  - Proceedings of the 2024 6th International Conference on Hydraulic, Civil and Construction Engineering (HCCE 2024)
PB  - Atlantis Press
SP  - 257
EP  - 265
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-726-7_26
DO  - 10.2991/978-94-6463-726-7_26
ID  - Zeng2025
ER  -

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