A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Research on the Suspender Tension Method of Beam-Arch Combined Bridge with Beam-First-and-Arch-Next
As the beam-arch combination system bridge gives full play to the structural characteristics of beam bending, arch compression and their combination, the structural stress is more complex. Therefore, the internal force and linearity of the bridge meet the design requirements, and the suspender tensioning control is very important. In order to avoid multiple tensioning, cumbersome error correction, too much choice of calculation methods, this paper uses finite element calculation software MIDAS CIVIL to establish the whole bridge construction stage model and arch-beam combination bridge force characteristics to determine the number of times of tensioning, tensioning sequence and the size of the tensile force, etc., to form a set of simple and practical suspender tensioning program. In combination with the actual tensioning of the suspender of Caojiaping Bridge, the frequency method is used to measure the cable force of the suspender, and the stress-strain and deformation of the main girder and arch ribs are verified and measured. Practice has shown that following this simple and practical hanger tensioning scheme can meet the requirements of the arch ribs, main girder forces, and linear shape. And after the bridge is completed, the single cable strength and design of the cable strength in the error is less than 10%, the sum of the suspender cable strength error is less than 1%. The practical tensioning program formed in this paper has high practical value and reference value in the actual construction process.
Research on the Suspender Tension Method of Beam-Arch Combined Bridge with Beam-First-and-Arch-Next
As the beam-arch combination system bridge gives full play to the structural characteristics of beam bending, arch compression and their combination, the structural stress is more complex. Therefore, the internal force and linearity of the bridge meet the design requirements, and the suspender tensioning control is very important. In order to avoid multiple tensioning, cumbersome error correction, too much choice of calculation methods, this paper uses finite element calculation software MIDAS CIVIL to establish the whole bridge construction stage model and arch-beam combination bridge force characteristics to determine the number of times of tensioning, tensioning sequence and the size of the tensile force, etc., to form a set of simple and practical suspender tensioning program. In combination with the actual tensioning of the suspender of Caojiaping Bridge, the frequency method is used to measure the cable force of the suspender, and the stress-strain and deformation of the main girder and arch ribs are verified and measured. Practice has shown that following this simple and practical hanger tensioning scheme can meet the requirements of the arch ribs, main girder forces, and linear shape. And after the bridge is completed, the single cable strength and design of the cable strength in the error is less than 10%, the sum of the suspender cable strength error is less than 1%. The practical tensioning program formed in this paper has high practical value and reference value in the actual construction process.
Research on the Suspender Tension Method of Beam-Arch Combined Bridge with Beam-First-and-Arch-Next
Sustain. Civil Infrastruct.
Yuan, Bingxiang (editor) / Bilgin, Hüseyin (editor) / Luo, Qingzi (editor) / Han, Zejun (editor) / Yang, Xueqiang (editor) / Zhang, Xigen (author) / Gao, Jincheng (author) / Zeng, Hui (author) / Li, Shenglong (author) / Jia, Zhenquan (author)
International Conference on Civil Architecture and Structural Engineering ; 2024 ; Guangzhou, China
2024-10-28
8 pages
Article/Chapter (Book)
Electronic Resource
English
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