The analysis on dynamic characteristics and wind-induced responses of steel pipe tower-line system was ac-tively conducted.The mechanical model of steel transmission pipe tower-line system was firstly established.Then,the in-fluence of the pile-soil effect on upper pipe tower was considered by using soil springs and the analytical model of the tow-er-line-foundation system wais developed.The analytical method of the tower-line-foundation system under wind excitation was constructed.A real steel pipe tower-line system in southern coastal areas was selected as an example to investigated the structural wind resistant performance.The results show that the pile-soil effect cannot be omitted in the dynamic anal-ysis of steel pipe tower-line system.
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