Dynamic behavior and stability of transmission line towers under wind forces

Battista, Ronaldo C.; Rodrigues, Rosângela Schwarz; Pfeil, Michèle S.

doi:10.1016/s0167-6105(03)00052-7

Cited by 132 publications

(67 citation statements)

References 3 publications

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“…Because of their characteristics, including their geometric nonlinearity and closely spaced modes of vibration, the dynamic behavior of transmission lines has significant effects on the wind-induced vibration response of transmission towers. Damage to highvoltage overhead transmission lines caused by environmental impacts, especially by wind-induced vibration, has been an important issue for engineers and researchers in the power industry throughout the world [1][2][3][4][5][6][7][8]. Since the introduction of the first high-voltage transmission lines, this issue has been studied continually, but reasonable solutions have not yet been obtained.…”

Section: Introductionmentioning

confidence: 99%

Wind-Induced Coupling Vibration Effects of High-Voltage Transmission Tower-Line Systems

Zhang

Zhao

Wang

et al. 2017

Shock and Vibration

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A three-dimensional finite element model of a 500 kV high-voltage transmission tower-line coupling system is built using ANSYS software and verified with field-measured data. The dynamic responses of the tower-line system under different wind speeds and directions are analyzed and compared with the design code. The results indicate that wind speed plays an important role in the tower-line coupling effect. Under the low wind speed, the coupling effect is less obvious and can be neglected. With increased wind speed, the coupling effect on the responses of the tower gradually becomes prominent, possibly resulting in the risk of premature failure of the tower-line system. The designs based on the quasi-static method stipulated in the current design code are unsafe because of the ignorance of the adverse impacts of coupling vibration on the transmission towers. In practical engineering, when the quasi-static method is still used in design, the results for the design wind speed should be multiplied by the corresponding tower-line coupling effect amplifying coefficient .

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Section: Introductionmentioning

confidence: 99%

Wind-Induced Coupling Vibration Effects of High-Voltage Transmission Tower-Line Systems

Zhang

Zhao

Wang

et al. 2017

Shock and Vibration

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“…Battista et al [2] established the finite element analysis model of the transmission tower-line system and studied the dynamic response and stability of the transmission tower line system *Address correspondence to this author at the School of Civil and Hydraulic Engineering, Shandong University, Jinan, Shandong, 250061, China; Tel: +86 531-88396182; Fax:+86 531-88392843; E-mail: tianl-007@163.com in time domain and frequency domain under wind action. Okamura et al [3] obtained the wind characteristics and the wind response of power transmission tower in mountainous area by full-scale measurements and investigated the flow around a two-dimensional mountain by wind tunnel tests.…”

Section: Introductionmentioning

confidence: 99%

The Collapse Analysis of A Transmission Tower Under Wind Excitation

Tian¹,

Yu²,

Ma³

et al. 2014

TOCIEJ

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Abstract:The collapse of a transmission tower under wind action is studied in this paper. A three-dimensional finite element model of the transmission tower is established based on a real project. The birth-to-death element technique is adopted in ABAQUS/Explicit. Kaimal fluctuating wind power spectrum and the harmony superposition method are used to simulate the fluctuating wind speed time history. The dynamic behavior and the collapse mechanism of the transmission tower under three different angles of attack α = 0 o , 45 o and 90 o are carried out, respectively. The results show that the collapse of the transmission tower at 45 o angle of attack occurs easily, but it is contrary at 90 o angle of attack. The fracture position of the transmission tower under wind excitation is obtained, and the initial damage of the members happens simultaneously in the main and the secondary element. The results of the collapse analysis can provide reference to the design of the transmission tower and the reinforcement of this structure to prevent the collapse of the tower.

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“…In 2003, researchers adopted a bracing bar element to develop a relatively free model with free and restrained end in the two connected ends [46]. In addition, a so-called 'element death' option from the ADINA program was applied in the models in order to simulate a cable rupture situation.…”

Section: Modelling Of Conductors and Insulatorsmentioning

confidence: 99%

Structural Analysis of Lattice Steel Transmission Towers: A Review

Chen¹,

Ou²

2016

J Steel Struct Constr

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Lattice Transmission Towers (LTT) and the associated transmission line systems are important infrastructure in modern society. Due to the complicated load conditions and the nonlinear interaction among the large number of structural components, accurate structural analysis of the LTT systems has been a challenging topic for many years. Still today there are some gaps between research and industrial practice. This paper presents a summary of research outcomes from current literature. Recent developments in structural modelling and failure prediction technology are reviewed in terms of connection joints, individual members and structural systems subjected to static and dynamic loads. The advantages and disadvantages of different approaches have been compared. Finally, the knowledge gaps, associated challenges and possible research directions are highlighted.

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Dynamic behavior and stability of transmission line towers under wind forces

Cited by 132 publications

References 3 publications

Wind-Induced Coupling Vibration Effects of High-Voltage Transmission Tower-Line Systems

Wind-Induced Coupling Vibration Effects of High-Voltage Transmission Tower-Line Systems

The Collapse Analysis of A Transmission Tower Under Wind Excitation

Structural Analysis of Lattice Steel Transmission Towers: A Review

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