| 摘要 |
<P>PROBLEM TO BE SOLVED: To stably and appropriately control seismic isolation. <P>SOLUTION: A vibration damping device is provided with: a seismic isolation laminated rubber 20 that prolongs an own natural period of a building 100; and a vibration-damping force imparting mechanism 30 that imparts a vibration-damping force to the building 100 while using the ground 110 as a fulcrum, to damp vibration of the building 100 in a predetermined direction. The vibration-damping force imparting mechanism 30 includes: an actuator 31 causing displacement of its top end 31c in a predetermined direction when the vibration-damping force imparting mechanism 30 generates a vibration-damping force; and a vibration-damping laminated rubber 32 having elasticity and deformed along the predetermined direction with the displacement of the top end 31c of the actuator 31. The seismic isolation laminated rubber 20 and the vibration-damping laminated rubber 32 are laminated rubbers based on the same material. <P>COPYRIGHT: (C)2012,JPO&INPIT |
