Noise Effects on Shaking Table Test of Structures

진동대를 이용한 구조물의 내진실험시 잡음의 영향에 관한 고찰

The effect of noise on the input motion for the seismic test of structures using shaking table was studied. Table motions usually contain high frequency contents which influence the PGA of input motions. It was shown that the noise influenced PGA much with minor changes in high frequency contents. The Butterworth bandpass filter can be effectively used. The adequacy of the table motion should be judged based on both the frequency contents and the PGA.