LIU Fen, WANG Qing, YANG Yuan, et al. Study of accelerometer-based vibration monitoring of high-rise building[J]. 2020, (12): 36-39. DOI: 10.13873/J.1000-9787(2020)12-0036-04.
In order to study the vibration problem of high-rise building
taking Yifu building hall of southeast university as an example
the time domain and frequency domain analysis methods of signal are adopted to speculate that the ground surface vibration caused by subway operation and wind excitation are the main factors affecting the vibration. The power spectrum is used to process the acceleration data of the ground above subway operation and the wind speed and direction data of the top of high-rise building. The low-frequency components of the surface vibration and wind excitation vibration frequency are extracted
which verifies that the subway operation and wind excitation are the main factors affecting the vibration of the high-rise building. The maximum vibration of two measured data after wavelet analysis and FIR bandpass filtering is taken as the input source of designed simulation model separately to conduct physical simulation of the vibration response generated by environmental excitation of the target high-rise building. It is proved that the simulation scheme is feasible compared with the measured data
and predicted that: when the ground surface vibration caused by subway and the influence of the1-level wind are both maximum