摘要
提高导线悬挂高度是解决线路走廊紧张地区的建筑物跨越和电磁环境问题的有效手段之一。提高导线悬挂高度后,杆塔趋于大型化,钢耗增大,有必要对结构进行优化。提高导线悬挂高度的方法有升高杆塔和改变导线悬挂方式2种。以华东地区某500kV猫头型直线塔为例,对采用2种方法提高导线悬挂高度后的杆塔结构进行优化,通过塔身重新布置和塔材受力分析,提出合理的塔型方案与结构优化方法。
Tower structural design itself has requirement of optimization. Raising conductor suspension height is one of the solutions to problems of building overcrossing and EM environment in regions with limited line corridors. As suspension height increases, towers become larger, resulting in more steel consumption, which makes it more important to perform structural optimization. There are 2 ways, namely, raising tower height and changing conductor suspension modes, to raise suspension height. Taking 500 kV cat-head-shaped suspension tower in East China as an example, 2 methods are used to study how to raise suspension height, and structural optimization is performed to the raised tower. Through reconfiguration of tower body and loading analysis of tower members, rational tower type and structural optimization methods are proposed.
出处
《电力建设》
2009年第5期35-38,共4页
Electric Power Construction
基金
国家电网公司科技项目(SGKJ[2007]168)
关键词
导线悬挂高度
升高杆塔
导线悬挂方式
结构优化
conductor suspension height
raising tower height
conductor suspending modes
structural optimization
