Studying on Optimization of Construction Cable Force of Asymmetric Fish-Shuttle-Shaped Single Tower Cable-Stayed Bridge
- DOI
- 10.2991/978-94-6463-726-7_36How to use a DOI?
- Keywords
- Asymmetric cable-stayed bridge; fish-shuttle-shaped main tower; optimization of construction cable force; unstressed state method; finite element analysis
- Abstract
The emergence of asymmetric cable-stayed bridges with different shape of main tower poses a number of challenges for analysis of construction cable force. In this paper, based on an asymmetric fish-shuttle-shaped single tower cable-stayed bridge in China, finite element software Midas Civil was adopted to build the model of the bridge. The unstressed state method was used to optimize the construction cable forces of the bridge, and its reasonable construction state was determined. Results indicated that the cable forces under construction calculated completed bridge internal force state ranged from 2620.5 to 6913.1kN, which was slightly reduced overall compared with that under target completed bridge internal force state, assuring the steady and safety of cables during construction. Maximum difference of 6.00% between the cable forces under target completed bridge internal force state and construction calculated completed bridge internal force state. The average error of the cable forces of the whole bridge was 1.41%, among which the average error of 0.99% of the main-span cable forces and 1.83% of the side-span cable forces. That is to say, through an effective tensioning could ensure that the error of construction completed bridge cable forces of the bridge with a span of nearly 400 m was small. In addition, the use of unstressed state method to optimize the cable-stayed bridge construction force could better meet the construction requirements. The maximum stresses of main tower, side-span concrete girders and main-span steel box girders at each construction stage were 23.0, 6.6, and 120.5 MPa, respectively, which was significantly lower than the design strength of corresponding concrete and steel, showing the safety of structural stress state of cable-stayed bridge. The maximum displacements of main tower, side-span concrete girders and main-span steel box girders at each construction stage were 156.5, 20.8, and 1206.4 mm, respectively, which could be ignored compared with the structural dimension and layout, indicating a reasonable structural construction deformation of cable-stayed bridge. The research results can provide reference value for the design and optimization of similar projects.
- 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.
Cite this article
TY - CONF AU - Zhiming Wang AU - Wenshu Sun AU - Shunan Yao AU - Zhiyong Yang AU - Jian Wang AU - Jiankun Liu PY - 2025 DA - 2025/06/13 TI - Studying on Optimization of Construction Cable Force of Asymmetric Fish-Shuttle-Shaped Single Tower Cable-Stayed Bridge BT - Proceedings of the 2024 6th International Conference on Hydraulic, Civil and Construction Engineering (HCCE 2024) PB - Atlantis Press SP - 366 EP - 379 SN - 2589-4943 UR - https://doi.org/10.2991/978-94-6463-726-7_36 DO - 10.2991/978-94-6463-726-7_36 ID - Wang2025 ER -