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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
【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。
【Abstract】 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;
【Key words】 topography elevation difference; span; tower line coupling; natural frequency of vibration;
【Key words】 topography elevation difference; span; tower line coupling; natural frequency of vibration;
- 【文献出处】 水电能源科学 ,Water Resources and Power , 编辑部邮箱 ,2013年08期
- 【分类号】TM75
- 【下载频次】39