哈尔滨工程大学学报2025，Vol.46Issue(12)：2491-2498,8.DOI:10.11990/jheu.202406035
考虑锈蚀影响的输电杆塔抗风性能评估
Wind-resistance performance assessment of transmission tower considering the effect of corrosion
摘要
Abstract
To study the impact of component corrosion on the wind-resistance performance of transmission towers,a fi-nite element model was established for a specific 110 kV transmission tower.The study incorporated the randomness of corrosion depth in the main components of transmission towers after 10,30,and 60 years of service.By combining the randomness with the probability density evolution theory,the effect of service time on wind-resistance reliability was studied under three basic wind speeds of 15,20,and 25 m/s.The results show that compared with an uncorrod-ed transmission tower,the mean displacement at the tower top under the basic wind speed of 20 m/s increased by 3.2%,5.8%,and 9.8%after 10,30,and 60 years of service,respectively.The corrosion of components considera-bly affects the wind-resistance reliability of the transmission tower;the greater the basic wind speed,the faster the decline in wind-resistance reliability over time.Specifically,when the service time reaches 60 years,the average wind-resistance reliability under the 25 m/s wind condition experiences the greatest drop,decreasing to 30.92%.The research findings can provide a useful reference for evaluating the wind-resistant performance of transmission towers during their service life.关键词
输电杆塔/锈蚀/有限元模型/风致振动/可靠度/概率密度演化/风场模拟/谱表示-降维方法Key words
transmission tower/corrosion/finite element model/wind-induced vibration/reliability/probability density evolution theory/wind field simulation/dimension-reduction spectra representation分类
建筑与水利引用本文复制引用
谭笑,周锐,刘耀东,徐梓栋,张廼龙,陈杰,王浩..考虑锈蚀影响的输电杆塔抗风性能评估[J].哈尔滨工程大学学报,2025,46(12):2491-2498,8.基金项目
国网江苏省电力有限公司科技项目(J2023056). （J2023056）
