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Dynamic Characteristics Of Transmission Tower - Line Coupled System Considering Torsional Effect

Submitted2020-06-28
Last Update2020-06-28
TitleDynamic Characteristics Of Transmission Tower - Line Coupled System Considering Torsional Effect
Author(s)Author #1
Author title:
Name: Ying Zhou
Org: School of Civil Engineering and Structure, Wuhan University, China
Country:
Email: whu_zhy@163.com

Author #2
Author title:
Name: Shuguo Liang
Org: School of Urban Construction, Wuhan University of Science and Technology, China
Country:
Email: 14698870@qq.com

Author #3
Author title:
Name: Lianghao Zou
Org: School of Civil Engineering and Structure, Wuhan University, China
Country:
Email: lhzou@whu.edu.cn

Other Author(s)
Contact AuthorAuthor #3
Alt Email: lhzou@whu.edu.cn
Telephone:
KeywordsTransmission tower-line system, Multi-particle model, Dynamic characteristics, Seismic resistance, Torsion.
AbstractThe multi-particle model is a common method for calculating the dynamic characteristics of typical transmission tower-line coupled systems. The existing multi-particle model often ignores the torsional effect of the transmission tower when performing tower-line coupling. In order to increase the accuracy of the calculation results of dynamic property, for the first time, the torsional effect of the transmission tower is incorporated into the traditional multi-particle model by increasing the degree of freedom of the transmission tower-line system in theoretical formulae. The developed formulae were then used to analyze the inherent frequencies of transmission towers and tower-line coupled systems of a typical tower-line structure. The theoretical calculation results are rather similar to the three-dimensional finite element analysis results and to the experimental results regarding translational motion frequency and torsional frequency. The research results could have civil engineering application value for multi-particle model theoretical research and seismic analysis of vibration characteristics of transmission tower-line systems.
Paperview paper 5013.pdf (950KB)

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