大跨越输电塔风振系数研究  

Study on wind-induced vibration coefficient of large span transmission towers

作　　者：陶青松[1] 林致添[1] 

机构地区：[1]江苏省电力设计院,江苏南京210024

出　　处：《武汉大学学报（工学版）》2007年第S1期192-195,共4页Engineering Journal of Wuhan University

摘　　要：针对三江口长江大跨越输电塔工程实例,用SAP2000建立该塔的三维有限元模型,对模型进行有限元动力分析,计算结构适用于工程设计的输电塔第一自振周期及第一振型系数,确定大跨越塔的风振系数,以指导大跨越塔的抗风设计.Based on the Sanjiangkou Yangtze River 500 kV large span transmission tower,its three-dimensional finite element model is built in SAP2000.And the dynamic analysis is carried out;and the first free vibration period and mode coefficient are obtained.Lastly,the wind-induced vibration coefficient of the tower is confirmed;and it is used in the wind-resistant design of the large span transmission tower.

关 键 词：大跨越输电塔 自振特性 风振系数 

分 类 号：TU347[建筑科学—结构工程]