输电铁塔挂点结构承载力分析  

BEARING CAPACITY ANALYSIS OF THE HANGING LINE STRUCTURE OF TRANSMISSION TOWER

作　　者：郭勇[1] 姚耀明[2] 陈金光[1] 王志勇[2] 沈建国[1] 

机构地区：[1]浙江省电力设计院,杭州310012 [2]国网浙江省电力公司,杭州310007

出　　处：《钢结构》2016年第8期67-70,共4页Steel Construction

摘　　要：以哈密—郑州±800 k V特高压直流输电塔为例,对特高压输电塔挂点结构的承载能力进行了有限元分析,建议挂线板面内承载力参照美国钢结构设计规范进行计算,面外承载力按三边固结、一边自由的双向板进行计算。对局部开槽的角钢横担主材承载力进行了对比计算,建议开槽深度不超过主材肢宽的1/3,同时给出了缓解应力集中的构造措施。Based on the DC transmission tower of Hami—Zhengzhou ± 800 k V UHV project,the finite element analysis was carried out on bearing capacity of hanging line structure. The method of American specification for steel structures was suggested to calculate the in-plane bearing capacity of the hanging plate,and the out-of-plane bearing capacity was calculated according to the two-way slab with three edge fixed and one edge free. The bearing capacity of angle member with local grooving was compared and calculated. The depth limits of the groove wouldn＇t exceeding 1 /3 width of the limb,and the construction measures to alleviate the stress concentration were proposed.

关 键 词：特高压输电塔 挂线结构 有限元分析 

分 类 号：TU398.9[建筑科学—结构工程]