VIBRATION CONTROL DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a vibration control device which delivers sufficient vibration control performance against a seismic movement of an expected design earthquake, and has a fail-safe function to minimize damage to a superstructure on the occurrence of an unexpectedly large seismic movement.SOLUTION: A vibration control device 10 which is installed between a substructure 110 and a superstructure 120 of a structure comprises: a lower base member 11 which is fixed to an upper surface 110a of the substructure 110; an upper base member 12 which is fixed to a lower surface 120a of the superstructure 120; a damper member 13 which is curved in a U-shape with one end section 13a thereof fixed to the lower base member 11 and the other end section 13c fixed to the upper base member 12; and a displacement restoration member 14 which restrains a relative displacement between the lower base member 11 and the upper base member 12 in a horizontal direction from getting not less than a predetermined dimension.