摘　要：基于脉动风的基本理论和Davenport风压功率谱,提出在频域内对输电塔结构迎风面施加风压功率谱的方法,并进行输电塔结构的随机振动分析,得到输电塔自振频率及风压谱施加后的各向位移变化情况,将风压功率谱计算结果与静力计算结果进行比较,得到风振系数加载后结构位移数值偏小,造成设计偏于不安全的结论.建议设计中可尝试动力加载方法,使结构设计更加合理.
关键词：输电塔;风荷载;PSD;ANSYS
分类号：TM753　文献标识码：A
文章编号：1004-9649(2008)04-0035-04

The random vibration analysis of transmission tower based on wind power spectral density method

JU Yan-zhong　 ZHU He　 BAI Jun-feng　

作者简介：鞠彦忠(1963-),男,吉林大安人,博士,教授,院长,从事输电线路的教学与科研研究.E-mail:juyanzhong@126.com
作者单位：鞠彦忠（东北电力大学建筑工程学院,吉林,132012）　
　　　　　 祝贺（东北电力大学建筑工程学院,吉林,132012）　
　　　　　 白俊峰（东北电力大学建筑工程学院,吉林,132012）　

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