摘要
倒落抱杆整立杆塔施工中 ,吊点位置的确定是一项非常重要的设计内容。采用“弯曲应变能最小”准则 ,搜索最优吊点位置 ,可显著降低杆塔最大截面弯矩 ,使之满足杆塔结构强度及抗裂要求。该法适用于任意多吊点、任意荷载、任意变截面等多种情况。
For construction of complete pole-tower with inverted holding poles the determination of hoisting points is a very important design content.Applying the principle of “minimum bending strain energy”to seek for the optimum location of hoisting points can obviously reduce the maximum sectional bending moment,which can meet the requirements for structural strength and anti-crack of pole-towers.The method is suitable for many conditions of optional multiple hoisting points,optional load and optional variable sections.[
出处
《电力建设》
北大核心
2001年第5期18-20,26,共4页
Electric Power Construction
关键词
倒落抱杆
整立杆塔
弯曲应变能量小准则
输电线路
绝缘子
inverted holding poles
erection of complete pole-tower
optimum hoisting points
principle of minimum bending strain energy