摘要
介绍了一种架空输电线路分支塔基础预高值的计算方法 :通过分析分支塔的受力情况得到总体偏斜方向,再对偏斜率进行分解实现,最终得到各个塔腿的预高值。计算表明,该方法所得到的最终预偏率满足目标预偏率的要求,同时,满足铁塔安装的要求。该方法保证了铁塔运行过程中铁塔状态满足相关规范的要求。最后,以220 kV梓河线路工程π接点分支塔为例,介绍了该方法的具体应用。
The paper introduces a calculation method of pre-high value for tower tounclatlon oi overneaa transmission line.By analyzing the force situation of branch tower,the overall deviation direction is obtained. Then the deflection rate is decomposed and realized.The results show that the method can meet the requirements of target eccentricity and installation.Meanwhile,the method ensures the state of iron tower and meets the requirements of relevant codes during the operation.Finally,the author takes the π contact branch tower as an example to introduce the application of the method.
出处
《国网技术学院学报》
2017年第4期1-3,10,共4页
Journal of State Grid Technology College
关键词
分支塔
基础预高
计算方法
tower branch
basic pre-high
calculation method
