摘要
不同于主材,斜材承载力的计算方法世界各国的差异很大,缘于各国对斜材端部的局部扭转约束、构造偏心、主斜材的单位刚度比、拉杆对交叉点的支撑作用等影响因素的认识和处理不同。中国新版"架空送电线路杆塔结构设计技术规定"参照美国"送电铁塔设计导则"的方法,用6个K值公式来进行讨论,探讨其不足。
Due to the different understanding and treatment about the local torque constraint of skew steel bar top, eccentric structure, unit rigidity ratio and the support of guyed pole to cross point, there is a great difference in the algorithm for skew steel bar bearing capacity worldwide：, being differ from the main material, The disadvantage of china new version ＂structure design rule of head transmission line tower＂ is discussed in this present paper, comparing with American ＂ design guide of power transmission tower＂ , with Six： formulae of k.
出处
《四川电力技术》
2008年第B08期83-86,共4页
Sichuan Electric Power Technology
关键词
格构式铁塔
单斜材
交叉斜材
构造偏心
局部扭转约束
长细比
承载力
grid type steel tower single skew steel bar cross skew steel bar long - thin ratio eccentric structure local torque constraint bearing capacity
