Patent ID: 7540117

Claim:
A vibration isolation system for building, comprising a vibration isolation layer, the vibration isolation layer including: an upper layer structure consisted of upper beams or slabs and moveable bases, which is coupled to columns of the building; a lower layer structure consisted of lower beams or slabs and fixed bases; and vibration isolation devices and elastic member horizon-resetting devices which are mounted between the upper layer structure and the lower layer structure, wherein: the vibration isolation devices are mounted between the moveable bases and the fixed bases, respectively; the elastic member horizon-resetting devices are mounted between the beams or slabs of the upper layer structure and the lower layer structure, respectively and each elastic member horizon-resetting device is constructed such that an upper hole is provided in the upper beam or slab of the upper layer structure and a lower hole corresponding to the upper hole is provided in the lower beam or slab of the lower layer structure, in which the corresponding upper and lower holes are filled with filling material, and an elastic member having an upper coupling plate and a lower coupling plate is mounted between the filling material filled in the upper hole and that filled in the corresponding lower hole.