Acceleration Response Spectrum for Predicting Floor Vibration Subjected to Occupants Jumping

Abstract:

The acceleration response spectrum for predicting floor vibration subjected to single person’s jumping load was investigated. Five hundred and six jumping load records from ninety two test subjects were collected by experiments. Each record was then applied to single degree of freedom system to calculate the corresponding peak, 10 s and 1 s running root mean square (RMS) acceleration responses spectra, on which a design oriented spectrum was developed. Spectrum parameters were determined by statistical analysis on the experimental records. These parameters can be calculated by given structural damping ratios and confidence levels. Furthermore, conversion rules between different vibration quantities, i.e. peak and RMS, were established. Finally, the applicability and reliability of the proposed design spectrum were validated by comparing its perditions with experimental and field measurements. The comparison shows that the suggested design spectrum can be used to predict the maximum acceleration response of floors subjected to one person jumping.