列车运行引起坡子街村房屋振动测试与分析

武广城际铁路列车通过坡子街村时,导致了该村A、B、C三栋房屋明显振动。为了分析房屋振动原因,进行了现场振动测试,从而获得了列车通过时三栋房屋的振动时程。依据测试数据,分别从时域和频域两方面进行处理分析,分析表明:高速列车运行产生的振动引起B、C两栋房屋x轴方向发生共振现象。由于共振效应,B、C两栋房屋x轴方向振动速度峰值反而大于距铁路更近的A栋房屋。结果还发现:列车运行速度加快会明显增加房屋共振的幅度,但列车长度对房屋共振的幅度及振动持时影响均不明显。

Monitoring and Analysis of Buildings Vibration of Pozijie Village caused by Trains Running

In the Pozijie village near Wuhan-Guangzhou Railway,vibration monitoring of three buildings was carried out during train running.To analyze the reason for building vibration,field vibration experiments were conducted to obtain the vibration time of the three buildings during train running.The monitored data were analyzed in the time domain and frequency domain,and some conclusions were drawn.The result showed that resonances occurred on the x direction of the B and C buildings caused by train running.Due to the resonance effect,the peak vibration velocity of B or C buildings along the x direction is higher than that of A building,which is closer to the railway.The result also showed that the increasing train speed results in the higher peak velocity value of resonance of building,however,the length of train has an unobvious effect on the duration and the amplitude of resonance.