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本文介绍了ZM_2型输电塔动力试验的初位移和脉动测量方法及其数据分析原理,对实测结果进行了分析,得出了输电塔纵向(送电线方向)、横向前两阶振型的动力参数和扭转及竖向振动的基频和阻尼。实验表明,扭转振动在该型输电塔的动力计算中是不可忽略的。
This paper introduces the method of the initial displacement and pulsation measurement and the data analysis principle of the ZM_2 type transmission tower power test. The results of the actual measurement are analyzed, and the dynamic parameters of the transmission tower in the longitudinal (feeding line direction) and horizontal two front vibration modes are obtained. The basic frequency and damping of the torsional and vertical vibrations. Experiments show that torsional vibration is not negligible in the power calculation of this type of transmission tower.