摘要
三沪±500kV直流输电线路的杆塔,进行了多方面的优化设计,主要体现在:因绝缘配置比以往工程要高,提高了防污闪能力,故塔头尺寸比以往的要大I;串直线塔和V型串直线塔的塔身均采用方形断面和一次坡型式,既美观,塔身整体刚度也好;塔身上部较窄按小交叉的斜材不等节间布置方式,塔身下部较宽按大交叉的斜材布置方式,使塔身主材受力状况达到最优;悬垂转角塔塔头采用无挂架方式。
The poles and towers design for San-Hu ±500 kV DC project are optimized in many aspects, mainly including： to increase dust flashover resistance due to higher insulation configuration, the size of tower head is larger than previous design; square tower body design, which is not only beautiful, but also strong, is used for both l-shaped and V-shaped towers; small-crossed wed members are arranged unevenly on the narrower upper portion of the tower, while large-crossed wed members form the wider lower portion of the tower, which optimizes main members＇ load condition; and the suspension angled tower uses armless head.
出处
《电力建设》
2008年第6期30-34,共5页
Electric Power Construction
关键词
直流输电线路
杆塔
优化设计
DC transmission project
pole and tower
optimization design
