Abstract
In order to provide guidance for the design of the steel-concrete combination section of a single-tower mixed beam cable-stayed bridge, a 1:4 scale test model of the steel-concrete combination section of the bridge was made based on the single-tower single-cable mixed beam cable-stayed bridge in Dongfeng Road, Siping City. The stress distribution of the combination section and the relative slip between concrete and steel under the action of axial force and bending moment were studied. The influence of five parameters, such as the thickness of the bearing plate, the diameter of shear nails, the diameter of perforated steel bars, the longitudinal spacing of shear nails, and the longitudinal spacing of perforated steel bars on the force transfer mechanism of the steel-concrete combination section was studied by finite element analysis. The results show that axial force and bending moment transfer smoothly in the combination section mainly in axial force mode and shear force mode. The stress level of each part of the combination section is within the allowable range, and it has a high safety reserve. The difference in local stiffness of the steel-concrete combination section leads to significant fluctuation of transverse stress. The axial force is mainly transmitted through the bearing plate, followed by shear nails and PBL shear keys, accounting for about 50%, 35%, and 15%, respectively.
Publication Date
1-18-2024
DOI
10.14048/j.issn.1671-2579.2022.06.011
First Page
62
Last Page
71
Submission Date
May 2025
Recommended Citation
Yongwei, YANG; Kai, LI; Lu, DENG; Jinlong, GUO; and Liqian, GAO
(2024)
"Experimental and Numerical Study on Steel Concrete Composite Section of Single Tower Cable Stayed Bridge,"
Journal of China & Foreign Highway: Vol. 42:
Iss.
6, Article 11.
DOI: 10.14048/j.issn.1671-2579.2022.06.011
Available at:
https://zwgl1980.csust.edu.cn/journal/vol42/iss6/11
Reference
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