矩方法在输电塔可靠度分析中的应用  

Application of Moment Method in the Reliability Analysis of Power Transmission Towers

作　　者：王松涛[1] 吴海洋[1] 杨景胜[1] 冯衡[1] 

机构地区：[1]中南电力设计院,湖北武汉430071

出　　处：《电网与清洁能源》2015年第2期59-66,共8页Power System and Clean Energy

摘　　要：为研究矩方法在输电塔构件可靠度分析中的应用,以风荷载、覆冰荷载、重力荷载以及材料强度为基本随机变量,引入矩方法对一个典型的500 k V角钢直线塔和转角塔进行了构件可靠度分析。结果表明:矩方法简单、高效,将其运用于输电线路构件可靠度分析切实可行,具有重要的理论意义和工程实用价值;各典型塔主材构件在各组合工况作用下可靠指标基本大于目标可靠指标3.7,转角塔构件可靠指标大于直线塔构件可靠指标。In order to study application of the moment method in reliability analysis of the power transmission tower,with wind load, ice load, gravity load and material strength selected as basic random variables, the moment method is used for the reliability analysis of the elements of typical 500 k V suspension tower and angle tower. The analysis results show that the moment method is simple, efficient and feasible with significant theoretical and practical engineering value. The reliability index of all the steel tower elements under different combined load conditions meets the target of 3.7 and the reliability index of the angle tower structure is greater than that of the suspension tower structure.

关 键 词：矩方法 输电塔 可靠度 

分 类 号：TM75[电气工程—电力系统及自动化]