摘要
依据使用条件设计了两种复合材料电杆,并进行电杆真型荷载试验,验证了复合材料杆在主要控制工况下的安全性和可靠性,得出了复合材料电杆设计承载力、变形和破坏特征。试验结果表明:电杆P-△效应产生的附加弯矩较大;电杆破坏特征为距离杆底4.0 m处外边缘玻璃纤维断裂和杆端挤压破坏;拉线对复合材料电杆变形约束有限,建议拉线复合材料电杆在设计中考虑电杆变形影响。
According to working conditions, two types of composite material poles are designed for load tests, and the results verify the safety and reliability of the poles under the main control conditions and obtain the bearing ca- pacity, deformation and failure characteristics of the pole. The results show that the P-△ influence can generate large additional bending moment. The pole failure characteristics is the edge breakage of glass fiber at 4.0 m above the bottom and crushing failure at the root, and the pulling steel wires have little effect on controlling the deforma- tion of the pole, therefore, it suggests taking into account the pole deformation of anchor pole in designing.
出处
《电力科学与工程》
2016年第2期72-78,共7页
Electric Power Science and Engineering
基金
中国南方电网有限责任公司科技项目(K-YN2014-002)
关键词
复合材料电杆
荷载试验
承载力
P-△效应
附加弯矩
composite material pole
load tests
bearing capacity
P- △ influence
additional bending moment
