110 kV窄基钢管塔的研究设计

窄基塔作为一种占地面积小、通道相对紧凑的塔型,越来越受到供电部门的青睐。本课题规划设计了1 个9 种塔型系列的110 kV窄基钢管塔,并应用了V型串直线塔、悬垂转角塔等特殊塔型对窄基塔塔型进行了优化,提高经济效益。介绍了窄基钢管塔设计中的技术特点,采用有限元软件对窄基塔进行动力特性分析,得到准确的结构自振周期,进而计算了窄基钢管塔的塔身风振系数。同时,对窄基钢管塔线路进行经济性分析,其可节约线路走廊宽度约20%,造价约为钢管杆线路的75%,具有良好的经济效益及推广应用价值。

Design of 110 kV Narrow-base Steel Pipe Tower

The narrow-base tower,a tower type with small land occupation and relative compact corridor has received more and more favors from the power supply companies.The 110 kV narrow-base steel pipe tower was designed for study and optimized with such special tower types as V-string and hanging angle towers.The technical specifications are introduced in this paper for design of the narrow-base steel pipe towers.Finite element software is used for analysis of the dynamic characteristics of narrow-based towers and i...