长短腿输电线路铁塔的优化分析  

The Optimization Design of Unequal Legs Transmission Tower

作　　者：赵瑜[1] 张晓燕[1] 靳彩[1] 

机构地区：[1]华北水利水电学院土木系,河南郑州450011

出　　处：《华北水利水电学院学报》2004年第2期22-25,共4页North China Institute of Water Conservancy and Hydroelectric Power

摘　　要：采用有限元法对输电线路中使用的长短腿铁塔和非长短腿铁塔结构进行计算比较,分析了长短腿的形式对铁塔塔身受力性能的影响,并对长短腿铁塔塔身的腹杆形式、开口、根开和截面材料进行了优化研究.最后给出设计建议供参考.In the mountains areas, the unequal legs transmissioniron tower ought to be designed when the distance between the tower′s legs is larger, or the fluctuation of tower′s topography is greater. Because four original altitudes of iron tower is not in the same horizontal,the difference in the performances from the equal leg iron towers is caused.FEM(Finite Element Method) is used to compute and analyze the two iron towers and deduce the rules of the unequal legs to the tower′s body .By following the rules,the arrangements of web members, the dimensions of the hatches and materials of sections are optimized in order to reduce the imbalance ranges of the internal forces of tower′s body and satisfy the economical request.

关 键 词：长短腿 铁塔 有限元 

分 类 号：TM753[电气工程—电力系统及自动化]