Patent RU-2614822-C2 (RU)
Inventor: KANEKO Shukhej
IPC: E04H9/02
Filed: 2013-06-11
Granted: 2017-03-29
Abstract: FIELD: construction. 
     SUBSTANCE: seismic isolation device is placed between the building part above the foundation and the foundation to withstand the vertical load of the building part above the foundation on the foundation and to isolate the building part above the foundation from the horizontal vibrations of the foundation; it comprises the upper flange sheet connected to the building part above the foundation and the lower flange sheet connected with the foundation. The housing of laminated rubber is located between the upper flange sheet and the lower flange sheet and comprises a plurality of elastic rubber material layers and a plurality of rigid material layers, alternately laminated in the vertical direction and connected by means of vulcanization to one another. The hollow cylindrical cladding layer, which covers the plurality of elastic rubber material layers and the respective outer edges of the plurality of rigid material layers, is connected by means of vulcanization to the outer edges of the plurality of rigid material layers and forms a single unit with the plurality of rubber elastic material layers. The body of laminated rubber comprises at least one columnar opening. A cylindrical lead column is placed in the columnar opening. A pair of discoidal locking elements is respectively attached to the upper flange sheet and the lower flange sheet on the lower surface and the upper surface of the cylindrical lead column near the columnar opening. The plurality of rigid material layers includes a plurality of upper rigid material layers located in the immediate vicinity of the upper flange sheet and adjacent to one another in the vertical direction, a plurality of lower rigid material layers located in the immediate vicinity of the lower flange sheet and adjacent to one another in the vertical direction, and a plurality of intermediate rigid material layers located between the plurality of upper rigid material layers and a plurality of lower rigid material layers in the vertical direction. Each of the plurality of upper rigid material layers has a greater extent in the horizontal direction than an adjacent upper intermediate rigid material layer, and protrudes horizontally outward from the outer edge of the upper adjacent intermediate rigid material layer abutting to the plurality of upper rigid material layers from the plurality of intermediate rigid material layers. Each of the plurality of lower rigid material layers has a greater extent in the horizontal direction than the lower adjacent intermediate rigid material layer, and protrudes horizontally outward from the outer edge of the lower adjacent intermediate rigid material layer near the plurality of lower rigid material layers of the plurality of intermediate rigid material layers. The upper adjacent intermediate rigid material layer has the same length in the horizontal direction with the central intermediate rigid material layer located closer to the center in the vertical direction than the upper adjacent intermediate rigid material layer of the plurality of intermediate rigid material layers. The lower adjacent intermediate rigid material layer has the same length in the horizontal direction with the central intermediate rigid material layer located closer to the center in the vertical direction than the adjacent lower intermediate rigid material layer of the plurality of intermediate rigid material layers. The upper cladding layer portion covering the plurality of upper rigid material layers protrudes in the horizontal direction facing outwardly relative to the cladding layer portion covering the intermediate rigid material layer and is connected by means of vulcanization to the lower surface of the upper flange sheet located near the plurality of upper rigid material layers. The lower cladding layer portion covering the plurality of lower rigid material layers protrudes in the horizontal direction facing outwardly relative to the cladding layer portion covering the intermediate rigid material layer and is connected by means of vulcanization to the upper surface of the lower flange sheet located near the plurality of lower rigid material layers. The layer of elastic rubber material of elastic rubber material layers, which comes into contact with the upper flange sheet and is located between the plurality of upper rigid material layers and the upper flange sheet, is connected to the bottom surface of the upper flange sheet by means of vulcanization. The layer of rubber elastic material of elastic rubber material layers, which comes into contact with the bottom flange sheet and is located between the plurality of lower rigid material layers and the lower flange sheet, is connected to the upper surface of the lower flange sheet by means of vulcanization. The uppermost rigid material layer of the plurality of upper rigid material layers, which is the closest to the upper flange sheet, has a greater length than other upper rigid material layers, excluding the uppermost rigid material layer, and protrudes horizontally outward from the outer edges of other upper rigid material layers, excluding the uppermost rigid material layer, and the lowermost layer of rigid material of the plurality of lower rigid material layers, which is located closest to the lower flange sheet, has a greater length than other lower rigid material layers, excluding the lowermost rigid material layer, and protrudes horizontally outward from the outer edges of other lower rigid material layers, excluding the lowest rigid material layer. Each of the plurality of upper rigid material layers has an upper circular outer edge extending horizontally outwardly from the circular outer edges of the plurality of intermediate rigid material layers. Each of the plurality of lower rigid material layers has a lower circular outer edge extending horizontally outwardly from the circular outer edges of the plurality of intermediate rigid material layers. The upper circular outer edge and the bottom circular outer edge, respectively, have a larger diameter than the circular outer edges of the plurality of intermediate rigid material layers. 
     EFFECT: provision of effective seismic isolation for building structures. 
     9 cl, 7 dwg