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Influence Of Cable Tension On The Mechanical Properties Of Cable -stayed Bridge

Submitted2018-11-27
Last Update2018-11-27
TitleInfluence Of Cable Tension On The Mechanical Properties Of Cable -stayed Bridge
Author(s)Author #1
Author title:
Name: Li Xiaozhong
Org: School of Civil Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, China
Country:
Email:

Author #2
Author title:
Name: Chen Xingchong
Org: School of Civil Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, China
Country:
Email: lj2018576590@163.com

Other Author(s)
Contact AuthorAuthor #2
Alt Email: lj2018576590@163.com
Telephone:
KeywordsCable-stayed bridge, Cable damage, Model updating, Mechanical properties
AbstractThe cable force and girder alignment problem of cable-stayed bridge under different damage conditions are studied. According to the characteristics of the force analysis on the cable-stayed bridge, the composite structure composed of cable-stayed cable, main girder and cable tower is considered as an example of a single-tower cable-stayed bridge and the finite element updating model based on the principle of sensitivity analysis is set up with the test data. The cable damage model is established by the elastic modulus reduction method. The effect of single cable and multi-cable force failure on the safety performance of cable-stayed bridge is simulated and the change law of cable internal force redistribution and corresponding deflection caused by different degrees of cable force failure in different position cables is analyzed and summarized. This method provides a basis for damage location and safety assessment of cables of cable-stayed bridges.
Paperview paper 4548.pdf (536KB)

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