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Study on Wind Vibration Control Effect of the Tower and Tower-Line Coupling System of the Transmission Tower

Currently, the Chinese code calculate the wind loads of transmission towers and lines separately, the code methods make the loads of ground wire which was regarded as external loads force on the transmission tower, without considering the coupling effect between the tower and line, this method does not accord with the actual working state of the transmission tower. Therefore, according to the actual state of tower-tower-line coupling, this article established the finite element model of its system. What’s more, on the basis of different layout of damper system, the dynamic response and vibration reduction effect of the tower-line coupling system under different conditions were studied in this paper. The results show that, both can reduce the system’s vibration effectively while considering the tower-line coupling and with the consideration of different damper layout schemes at the same time. The third scheme which is tower head lower half part edge member bar plus dampers had the most significant vibration reduction effect. The research results can be reference for engineering design and engineering practice, it also has a certain theoretical and practical significance.