摘要
针对华东地区常用220kV四柱钢管杆,选取典型杆型进行结构及杆件受力分析,获得其应力分布情况,发现钢管杆主杆存在明显的y轴方向弯矩远大于x轴方向弯矩的特征。从改变主杆截面强弱轴的角度出发,通过选用椭圆形主杆截面,试算了长短轴比例分别为1.5∶1及2∶1两种情况下的主杆选型结果。与原圆钢管对比,主杆的整体重量明显降低,长短轴1.5∶1及2∶1情况下分别降重9.7%及14.7%,主杆截面优化效果明显,具有明显的经济效益。
To optimize the steel consumption of four-column steel tube pole,this paper selects a typical type of 220 kV pole to study the internal force distribution of the whole structure and specific member.The results show that the bending moment in Y-axis direction is far much greater than that in X-axis.From the idea of changing the strong and weak axes of the main rod section,the elliptic tube section is selected to study the influence of major-minor-axis-ratio on selection results,and the major-minor-axis-ratio is set to be 1.5:1 and 2:l.The results show that compared with the original round steel tube,the overall weight of the main rod is significantly reduced,the weight is reduced by 9.7%and 14.7%,when the major-minor-axis-ratio is set to be 1.5=1 and 2:1.
作者
朱亚鹏
余亮
张炜
薛正元
李殿亮
ZHU Yapeng;YU Liang;ZHANG Wei;XUE Zhengyuan;Li Dianliang(Jiangsu Power Design Institute Co.,Ltd.,China Energy Engineering Group,Nanjing 211102,China)
出处
《武汉大学学报（工学版）》
CAS
CSCD
北大核心
2022年第S02期85-89,共5页
Engineering Journal of Wuhan University
关键词
四柱钢管杆
强弱轴
惯性矩
椭圆钢管
four-column steel tube pole
strong and weak axis
inertia moment
elliptical tube
作者简介
朱亚鹏(1991-),男,硕士,工程师,主要从事输电线路设计工作,E-mail:zhuyapeng@jspdi.com.cn.
