浙东某地避雷针塔异常振动问题的分析

Analysis on Abnormal Vibration of Lightning Rod Somewhere in East Zhejiang Province

针对浙东地区某地一根避雷针在一个时间段内多次出现较大幅度振动情况进行了分析。本文验算了风荷载下的结构变形并计算了改避雷针结构的固有频率,探讨了风荷载下避雷针结构变形超标、偶然地震动与地脉动影响及脉动风导致的风致振动等情况的可能性。

This paper analyzes the large amplitude vibration of a lightning rod in a certain time period in the East Zhejiang region.In this paper,the structure deformation under wind load is calculated,and the natural frequency of the structure of the lightning rod is evaluated,and the possibility of the deformation of the lightning rod structure under wind load,the influence of accidental vibration and ground pulsation and the wind-induced vibration caused by pulsating winds are discussed.