NUMERICAL SIMULATION FOR DETECTING INTERNAL VOID OF SEISMIC RUBBER BEARING

抄録

Deteriorated seismic rubber bearings exhibit inadequate isolation effects during earthquakes. Hence, the early detection of deterioration is necessary to provide safe, isolated structures. Deterioration of seismic rubber bearings usually starts from small internal voids in rubber. This study aimed to clarify the influence of a void in a seismic rubber bearing on elastic waves via numerical analyses. The results showed that a void affects the amplitude of the waves observed at a receiver if the void is located near the receiver.