In this paper, the vibrations of environments and nearby buildings induced by running trains were studied through the in situ experiments at a bridge site and two buildings near railway lines. The results show that the vibration levels of the environmental ground and the building floors increase with train speed and vehicle loads, while attenuate with the distance to the railway lines; There exists an amplifying zone of the ground vibration at certain distances (about 35-45m) to the railway track (line vibration source); For multi-story buildings, higher floors vibrate more strongly than lower ones.
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