The practical method for the wind-resistant design of transmission tower-line system by using viscoelastic dampers is actively carried out in this study. The multi-degree-of-freedom (MDOF) models of transmission line are developed for both in-plane/out-of-plane vibration. The equivalent damping ratio of the wind- excited transmission tower is determined by incorporating the viscoelastic dampers. Furthermore, the practical method for wind-resistant design is developed based on the Chinese design code. A real transmission tower-line system constructed in China is taken as the example to examine the feasibility and reliability of proposed approach. The observations demonstrate that the viscoelastic dampers can be utilized in the wind-resistant design of transmission tower-line system because of its simple configuration as well as satisfactory energy- dissipating capacity. The design method proposed in this study can also be applied to wind-resistant design of civil engineering structures installed with other energy-dissipating devices.
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