角钢塔曲臂K节点变形原因分析及对策研究  

Cause Analysis and Countermeasure Research on K-joint Deformation of Angle-steel Tower

作　　者：辜良雨 李林 廖邢军 刘翔云 陇源杰 付卫斌 GU Liangyu;LI Lin;LIAO Xingjun;LIU Xiangyun;LONG Yuanjie;FU Weibin(Southwest Electric Power Design Institute Co., Ltd. of China Power Engineering Consulting Group, Chengdu 610021, Sichuan, China;Construction Branch of Yunnan Power Grid Co., Ltd., Kunming 650051, Yunnan, China)

机构地区：[1]中国电力工程顾问集团西南电力设计院有限公司,四川成都610021 [2]云南电网有限责任公司建设分公司,云南昆明650051

出　　处：《四川电力技术》2022年第3期66-72,共7页Sichuan Electric Power Technology

摘　　要：酒杯塔和猫头塔在单回交流输电线路中广泛应用,曲臂K节点属于刚度相对薄弱点,文中以某500 kV交流输电线路工程猫头塔曲臂K节点变形统计情况为例,从设计、加工、施工三方面对曲臂K节点变形原因进行了深入分析,提出了合适的结构措施和施工要求,经过某新建工程验证,控制措施效果显著,值得在今后的铁塔设计、施工中借鉴采用。Cup-tower and cathead tower are widely used in single circuit AC transmission lines,but the K-joint of crank arm is a relatively weak point in stiffness.Taking the deformation statistics of the K-joint of crank arm in cathead tower in a 500 kV AC transmission line project for example,the deformation causes of the K-joint of crank arm are analyzed from three aspects of design,processing and construction,and the appropriate structural measures and construction requirements are put forward.Through the verification of a new project,the effect of the control measures is remarkable,which is worthy of reference in the future tower design and construction.

关 键 词：猫头塔 酒杯塔 曲臂 K节点 变形控制 

分 类 号：TM752[电气工程—电力系统及自动化]