Abstract
It is necessary to prepare to strong ground motion beyond our previous assumptions, for instance like a Huge Nankai quake. But with current seismic-isolated house technology, we believe that the deformation of the seismic-isolated layer becomes so big that it exceeds the capacity of the equipment, causing extensive damage to the houses. Therefore, the authors developed devices that restrain deformation of the seismic-isolated layer, and measured the equipment efficiency and vibration properties by shaking table tests of a full-scale house. As a result, by installing the newly-developed oil damper, the building itself did not have substantial damage even with the restrained seismic-isolated layer deformation, and we could prevent overturning of the furniture in the house.
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