JP3188114U - Seismic isolation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seismic isolation device provided in a building to levitate the building itself in the event of an earthquake or the like. SOLUTION: A foundation upper plate 2 which is integrally overlapped with a building B is installed on an upper surface of a foundation bottom plate 1 of a building B, and a centrifugal fan 3 serving as a centrifugal compression mechanism is installed on a hole 8 provided in the foundation upper plate 2. Deploy. When an earthquake is detected, the centrifugal fan 3 rotates to blow air from the hole 8 provided in the foundation upper plate 2 onto the foundation bottom plate 1 so that the foundation upper plate 2 integrated with the building B is lifted. .. Arrange multiple seismic isolation devices. [Selection diagram] Fig. 1

Description

      The present invention relates to a seismic isolation device that is provided in a building and floats up in the event of an earthquake.

      There is a seismic isolation device that is installed in a building so that the building itself can be lifted in the event of an earthquake. However, for example, the “airbag type seismic isolation device” of Patent Document 1 described below is performed by inflating an air bag, and the “pneumatic floating type seismic isolation device” of Patent Document 2 uses air stored in an air tank. Although they are used, they are used once by detecting earthquake motion, so it takes time to replenish the air and cannot cope with the aftershock that occurs in the event of a large earthquake. There is.

  Japanese Patent Laid-Open No. 2001-90091   Utility Model Registration No. 3119675

      This device is a seismic isolation device that is installed in a building and lifts the building itself in the event of an earthquake or the like. The purpose of the present invention is to obtain a device that can be used continuously and continuously as a seismic isolation device that floats the board.

  When the foundation top board 2 that overlaps with the building is installed on the upper surface of the foundation bottom board 1 of the building B, and the centrifugal fan 3 is arranged on the hole 8 provided in the foundation top board 2 and an earthquake is detected, The centrifugal fan 3 is rotated, and air is blown to the foundation bottom board 1 from the hole 8 provided in the foundation upper board 2 so that the foundation upper board 2 integrated with the building B is lifted. Seismic device A.

      This device is a seismic isolation device that is installed in a building and lifts the building itself in the event of an earthquake or the like. As a seismic isolation device, it can be used continuously and continuously, so it is particularly effective as an aftershock countermeasure. It is also applied to earthquakes and vibrations in storms and other disasters.

It is explanatory drawing of the seismic isolation apparatus of this device.

      FIG. 1 is a cross-sectional view of an embodiment of the seismic isolation device A according to the present invention, in which B is a building, 1 is a foundation bottom, 2 is a foundation top, and 3 is a centrifugal fan (an example of two arrangements). 4 is a floor, 5 is under the floor, 6 is a supporting wood, 7 is a seal, and 8 is a hole provided in the foundation upper board 2. The seal 7 is arranged between the foundation bottom board 1 and the foundation upper board 2 at the periphery, and is fixed in the upper part of the figure, and the lower part is opened to allow air to come out, but this is arranged as necessary. The centrifugal fan 3 is given as an example of a centrifugal compression mechanism, but this centrifugal compression mechanism is a mechanism that rotates an impeller in a casing and compresses air radially using centrifugal force, and can be designed in various ways. . The centrifugal fan 3 is installed so as to cover the hole 8 provided in the foundation upper board 2.

      The centrifugal fan 3 is connected to sensors, wiring, equipment, etc. that provide earthquake information in the event of an emergency such as an earthquake early warning or seismometer. High-pressure air is ejected from the hole 8 provided in the base 2 toward the foundation bottom 1 as shown by the arrow in the figure, and the building base 2 on which the floor 4 and the underfloor 5 are placed is lifted by the reaction. In hovercraft, it is similar to blowing out air from a levitation fan from the bottom of the hull and letting it rise from the water surface by the wind pressure.

    In the case of a large earthquake, aftershocks often occur after the initial earthquake, but the centrifugal fan 3 always operates every time. In preparation for a power failure, a separate power generator, a battery, and the like are separately provided as a standby power source for the centrifugal fan 3. Depending on the size of the building, the number of centrifugal fans 3 or the number of sets is increased or decreased around the building.

A Seismic isolation device B Building 1 Foundation bottom 2 Foundation top 3 Centrifugal fan 4 Floor 5 Under floor 6 Support wood 7 Seal 8 Hole

Claims (2)

  On the upper surface of the foundation bottom of the building, a foundation top board that is integrated with the building is installed, and a centrifugal compression mechanism is placed in the hole provided in the foundation top board, and the centrifugal compression mechanism rotates when an earthquake is detected. And the base isolation board which floated the foundation top board united with the said building by blowing air on the foundation bottom board from the hole provided in the foundation top board, The seismic isolation apparatus characterized by the above-mentioned.   A plurality of seismic isolation devices comprising a plurality of seismic isolation devices according to claim 1.

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