An Experimental Study on the Base Isolation of Equipments using Small-Scale Laminated Rubber Bearings

축소 적층고무베어링을 설치한 시설물의 지반진동 분리에 관한 실험 연구

The base-isolation technology is to set up LRB between the base of a building and the ground to protect the building from seismic force. As Korea belongs to the region of moderate or weak seismicity it is more resonable to apply the base-isolation technology of LRB in the field of the response reduction of equipments under machine or transportation vibrations than in the field of seismic response reduction of buildings, In this paper small-scale LRB's designed for the response reduction of equipments are manufactured and tested for thier performance. The shaking table test is conducted to analyze the characteristics of LRB such as the variation of natural frequencies damping ratios and equipments responses.