高压输电线路复合横担受力性能研究

蔡康毅; 方晴; 杜新喜; 袁焕鑫; 柳欢欢; 张传义

doi:10.13204/j.gyjz202004028

高压输电线路复合横担受力性能研究

doi: 10.13204/j.gyjz202004028

1. 武汉大学土木建筑工程学院, 武汉 430072;
2. 湖北省电力勘测设计院有限公司, 武汉 430040;
3. 武汉南瑞电力工程技术装备有限公司, 武汉 430415;
4. 国网随州供电公司, 湖北随州 441300

基金项目:

中央高校基本科研业务费专项资金项目（2042017gf0047）。

详细信息

作者简介:
蔡康毅,男,1994年出生,硕士研究生。

通讯作者:
杜新喜,duxinxi@163.com。

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出版历程
- 收稿日期: 2019-12-20

RESEARCH ON MECHANICAL PROPERTIES OF COMPOSITE CROSS ARMS IN HIGH-VOLTAGE TRANSMISSION LINES

1. School of Civil Engineering, Wuhan University, Wuhan 430072, China;
2. Hubei Electric Engineering Co., Ltd., Wuhan 430040, China;
3. Wuhan Nari Electric Power Engineering Technology&Equipment Limited Company, Wuhan 430415, China;
4. State Grid Suizhou Electric Power Co., Ltd., Suizhou 441300, China

摘要

摘要: 针对500 kV线路和220 kV线路采用玻璃纤维增强复合材料制造的复合横担开展受力性能研究，进行不同荷载工况下两类复合横担的静力试验和数值分析，考察承载和变形性能，分析极限承载能力。研究结果表明：各试验工况下复合横担整体稳定，连接可靠；各应变或位移测点的有限元曲线与试验曲线比较吻合且基本呈线性关系；各测点的残余应变或位移在卸载后均较小；两类复合横担整体均处于弹性工作阶段且均具有一定安全储备，500 kV线路和220 kV线路复合横担的极限承载为各自最不利工况下设计荷载的2.9倍和1.7倍。
- 高压输电线路 /
- 玻璃纤维增强复合材料 /
- 横担 /
- 静力试验 /
- 有限元
Abstract: The mechanical properties of composite cross arms made of glass fiber reinforced polymer for 500 kV and 220 kV transmission line were studied. Static test and numerical analysis of two types of composite cross arms under different load conditions were conducted. The bearing capacity and deformation performance of the test models were investigated. The ultimate bearing capacity of composite cross arms was also analyzed. It was revealed that the composite cross arms were globally stable and connections were safe under all experimental load conditions. The numerically and experimentally obtained strain and deformation curves were in good agreement with each other. Meanwhile, the residual strain or deformation of each measured point was negligible after unloading. It was also shown that the composite cross arms were in the elastic working stage and exhibited a satisfactory safety reserve. The ultimate bearing capacity of composite cross arms for 500 kV and 220 kV transmission line were 2.9 times and 1.7 times of design load under the least favorable load condition respectively.
- high-voltage transmission line /
- glass fiber reinforced polymer /
- cross arm /
- static test /
- finite element

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参考文献(20)

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