Collapse Analysis of a Transmission Tower-Line System Induced by Ice Shedding [PDF]
Frontiers in Physics, 2021 Ice shedding causes transmission lines to vibrate violently, which induces a sharp increase in the longitudinal unbalanced tension of the lines, even resulting in the progressive collapse of transmission towers in serious cases, which is a common ice ...
Jiaxiang Li +5 more
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Study on Wind Vibration Response and Coupling Effect of Transmission Tower-Line System Under Downburst [PDF]
IEEE AccessDownburst is a type of near-surface short-term destructive strong wind that significantly affects wind-sensitive flexible structures like transmission tower-line systems.
Yongli Zhong +4 more
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Performance Evaluation on Transmission Tower-Line System with Passive Friction Dampers Subjected to Wind Excitations [PDF]
Shock and Vibration, 2015 The vibration control and performance evaluation on a transmission-tower line system by using friction dampers subjected to wind excitations are carried out in this study. The three-dimensional finite element (FE) model of a transmission tower is firstly
Bo Chen +3 more
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Experiment Study on Dynamic Effects of Tower-Line Systems Induced by Ice Shedding
Advances in Civil Engineering, 2020 Taking the 220 kV transmission line as the prototype, a test model of the double-span tower-line system with a scale ratio of 1 : 20 was proposed on the basis of dynamic similarity theory. 14 different working conditions including zippered, simultaneous,
Xianzhong Xie +4 more
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Energies, 2019 Under the typhoon disaster, the power grid often has serious accidents caused by falling power towers and breaking lines. It is of great significance to analyze and predict the damage probability of a transmission line-tower system for disaster ...
Hui Hou +5 more
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Numerical analysis on wind-induced vibration response of long-span transmission tower-line system [PDF]
GrađevinarBased on the engineering background related to ±800 kV ultra-high voltage (UHV) transmission lines spanning the Yellow River, finite element models were developed for single-tower and transmission tower-line systems, with their wind-induced responses ...
Xianxin Li +4 more
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Dynamic Response Modeling of Mountain Transmission Tower-Line Coupling System under Wind–Ice Load [PDF]
Buildings, 2023 Transmission lines have the characteristics of being tall tower structures with a large span distribution of transmission lines that are sensitive to external loads such as wind and ice, and belong to strong, nonlinear, complex, rigid-flexible coupling ...
Haoran Song, Yingna Li
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Optimization of VEDs for Vibration Control of Transmission Line Tower [PDF]
Advances in Civil Engineering, 2021 This paper investigates the optimization of viscoelastic dampers (VEDs) for vibration control of a transmission line tower. Considering the stiffness of the steel brace connected to a VED, the mechanical model of the VED-brace system was established ...
Guoping Huang +4 more
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Shaking Table Array Tests of an Ultra-High-Voltage Cup-Type Transmission Tower-Line System [PDF]
Shock and Vibration, 2019 Ultra-high-voltage (UHV) cup-type transmission towers supported with long-span transmission lines are unavoidably subjected to the coupling action between the towers and the transmission lines. Therefore, investigating how tower-line coupling affects UHV
Fei Wang +4 more
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Dynamic Failure Mode Analysis for a Transmission Tower-Line System Induced by Strong Winds [PDF]
EnergiesThe prevailing approach to the wind resistance design of transmission towers is rooted in the quasi-static method. However, this methodology faces criticism for neglecting tower-line coupling dynamics. Despite efforts to boost structural wind resilience,
Shizeng Liu +6 more
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