Abstract
Based on the Xiangxi River Bridge project in Xiakou, Xingshan County, Yichang, Hubei Province, this paper adopted Midas/Civil to build a finite element model of the entire bridge space. Meanwhile, it selected the size and angle of the supporting active jacking force during the bridge tower construction of leaning single-tower cable-stayed bridges, counterweight of the main beams, and tensile force of the cables as the structural parameters to study the bridge towers and support stress performance. The results show that as the jacking force increases, the maximum stress during the construction phase of the bridge tower and support gradually increases. As the jacking force angle increases, the maximum stress during the construction stage of bridge towers and support gradually decreases, especially when the jacking force angle is between 40° and 60°. Additionally, the support stress changes more significantly with the angle. The counterweight of the main beams has a significant influence on the supporting axial force. As the counterweight position of the main beam on the main span side gradually moves away from the bridge tower, the maximum axial force during the supporting construction stage shows a trend of first increasing and then decreasing. The tensile force of the cables has the most significant effect on the supporting axial force and the highest sensitivity. Reducing the tensile force of the cables on the side span can significantly decrease the supporting axial force.
Publication Date
8-18-2022
DOI
10.14048/j.issn.1671-2579.2022.04.008
First Page
47
Last Page
52
Submission Date
May 2025
Recommended Citation
Zhifeng, TONG; Lei, XIONG; Xiaoqi, LIU; and Hongyou, CAO
(2022)
"Study on Key Design Parameters of the Constructional Safety of the Leaning Single-Tower Cable-Stayed Bridges,"
Journal of China & Foreign Highway: Vol. 42:
Iss.
4, Article 8.
DOI: 10.14048/j.issn.1671-2579.2022.04.008
Available at:
https://zwgl1980.csust.edu.cn/journal/vol42/iss4/8
Reference
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