Study on the Vibration Caused by Subway Train and Its Effect on Existing Masonry Building
Based on two masonry structures, a situ experiment was carried out to study the subway -induced vibration in Shanghai from two aspects of the vibration level and frequency.Preliminary conclusion both on the ground and in two masonry buildings were: peak value of ground vibrations attenuate with distance.The main frequencies of train-induced vibrations are 40-80 Hz, while those of road traffic-induced vibrations are 10-25 Hz.For the two five-story buildings, Vibrations of the floors increase by height.The vibration acceleration level in the vertical direction of the top floor is 2-4 dB larger than that of the ground floor and when it comes to the horizontal direction, the vibration acceleration level of the top floor is 6-7 dB larger than that of the ground floor; The vibration at floor center is greater than that at corners of the walls and the staircase.The subway-in duced vibration does not exceed the regulations in relevant criterion in this situ experiment, but the influence on the resident cant be ignored.
subway-induced vibration existing masonry building site measurement frequency spectrum vibration level
Q.Xia W.J.Qu
College of Civil Engineering, Tongji University, Shanghai, China
国际会议
第六届国际环境振动学术研讨会(6th International Symposium on Environmental Vibration)(ISEV2013)
上海
英文
231-239
2013-11-08（万方平台首次上网日期，不代表论文的发表时间）