In the city, subject to the site limitations, requiring the width of the bottom of the communication tower to reduce, so a single tube tower by pro-Lai. The diameter of the tower is 1.2-1.7%. Another feature of the single-tube tower is the use of large machining, installation, is conducive to mass production, and mechanized construction can control the quality, reduce costs and improve efficiency. The drawback of the single tube tower is the larger weight of the tower, the structural displacement is also larger, the higher requirements of the foundation. Comprehensive comparison, in the limited space, the tower is not large, the wind pressure is small, better traffic conditions in the area using a single tube or the appropriate.