RESIDUAL SEISMIC PERFORMANCE OF RUBBER BEARINGS SUBJECTED TO MULTIPLE SIMULATED EARTHQUAKE WAVES AND DAMAGE EVALUATION BY AE METHOD

Abstract

 This study experimentally investigated the correlation between the residual performance of rubber bearings and nondestructive evaluation by the AE method. Shear tests simulating earthquake waveforms were conducted on rubber bearing specimens, followed by cyclic compression loading tests and AE measurements, and the correlation between AE measurement data and residual performance obtained from performance verification tests was investigated. As a result, it was confirmed that there was a correlation between the RMS of AE waveforms, and equivalent damping constants, indicating that the AE method could be used to evaluate residual performance.