地势与档距对输电塔线体系平面外自振频率的影响  

Influence of Topography and Span on Natural Frequency of Vibration for Outside Plane of Transmission Tower-Line System

作　　者：屈成忠[1] 武桐[1] 杨光 

机构地区：[1]东北电力大学建筑工程学院,吉林吉林132012 [2]天津市城西供电分公司,天津300000

出　　处：《水电能源科学》2013年第8期164-165,245,共3页Water Resources and Power

摘　　要：针对地势高差与档距对输电塔线体系平面外自振频率的影响,在有地势高差的情况下改变不同档距,利用SAP2000有限元分析软件建模,对塔-线耦合体系平面外自振频率进行分析计算,获得了有地势高差情况下不同档距的塔-线耦合体系平面外自振频率规律,对输电塔抗风、抗震设计具有参考价值。Aiming at the influence of topography elevation difference and span on natural frequency of vibration for outside plane of transmission tower-line system, SAP2000 finite element analysis software is used to calculate the natural frequency of vibration for outside plane of transmission tower-line system by changing different span at the condition of topography elevation difference. The obtained natural frequency of vibration for outside plane of transmission tower-line system has reference for wind and seismic resistant design of transmission tower.

关 键 词：地势高差 档距 塔线耦合 自振频率 

分 类 号：TM726.3[电气工程—电力系统及自动化]