Research on Dynamic Responses of a Transmission Tower with Angle Section Members Under Lateral Wind Loadings
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Abstract
The dynamic responses of a transmission tower with angle section members under lateral wind loadings are actively investigated in this study. A real large scale transmission tower is taken as an example to establish the dynamic analytical model by using three dimensional beam elements. The wind loadings in the lateral direction, which are acted on the transmission tower, are simulated to investigate the structural dynamic responses. The observations indicate that the dynamic responses in both the lateral and longitudinal directions are observed if the tower is subjected to lateral wind loadings. The peak wind induced responses in the lateral direction are much larger than those in the longitudinal direction. In addition, the peak stresses of some major members are larger than the yielding strength of the steel material. Therefore, the effects of the lateral wind loadings should be taken into consideration in the design and construction of the transmission tower.
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