JPH11270170A - Structure of parking lot in base-isolated building - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide a structure of a parking lot in a base-isolated building that can reliably absorb horizontal displacement during an earthquake and has excellent airtightness. A partition member made of noncombustible material is attached to a lower end edge of a wall body around a lift of a parking lot on a seismic isolation floor in a building provided with a seismic isolation device on an intermediate floor. The outer periphery of the partition member 4 is surrounded by a stainless steel foil 5. A stainless steel slide plate 6 is placed on the lower floor of the seismic isolation floor. The partition member 4 is mounted on the slide plate 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a parking structure in a base-isolated building.

[0002]

2. Description of the Related Art While many seismic isolation buildings are being planned, "intermediate seismic isolation" buildings in which a seismic isolation layer is installed in the middle of a building are increasing. In these intermediate seismic isolation buildings, carbon dioxide gas may be used as fire extinguishing equipment when mechanical parking facilities are installed underground.

[0003]

[Problem to be Solved by the Invention] In a seismic isolation building having a seismic isolation device in the middle, in the structure of a parking lot provided with a carbon dioxide fire extinguishing system, a fire occurred inside the parking lot. Releases carbon dioxide in some cases. However, since the lift of the parking facility penetrates the seismic isolation floor, if the airtightness of the seismic isolation floor is not perfect, gas harmful to the human body will leak to other levels of the building as well as inside the parking lot.

The present invention has been made to solve the above-mentioned conventional problems, and provides a structure of a parking lot in a base-isolated building which can reliably absorb horizontal displacement during an earthquake and has excellent airtightness. The purpose is to do.

[0005]

In order to achieve the above object, the structure of a parking lot in a base-isolated building according to the present invention is provided in a building provided with a base-isolation device at an intermediate level. A partition made of non-combustible material is attached to the lower edge of the wall around the lift in the parking lot, the entire outer periphery of this partition is surrounded by stainless steel foil, and a stainless steel slide plate is placed on the lower floor of the base-isolated floor. It is characterized by the structure of a parking lot in a base-isolated building, which is arranged and formed by mounting partition materials on a slide plate.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing the structure of a parking lot in a base-isolated building according to the present invention.

<A> The structure of an intermediate seismic isolation building. As shown in FIG. 3, the seismic isolation device 1 is installed on an intermediate floor between the lower floor 2 and the upper floor 7 of the building. Therefore, seismic isolation device 1
Weight of all floors above the installation floor 2 where
It will be supported by the seismic isolation device 1. In this building, the parking lot lift penetrates the upper and lower floors.
The wall 3 around the lift as shown in FIG.
The lower floor 2 and the upper floor 7 thereabove employ an insulated structure.

<B> Installation of the partition member 4. In order to insulate the lower floor 2 of the seismic isolation device 1 and the upper floor 7 thereabove, on the upper floor 7 side, a non-combustible material is formed on the lower edge of the wall 3 around the lift of the parking lot. Attach the painting material 4. The partition member 4 formed of a noncombustible material is formed by, for example, arranging rock wool at the center and surrounding the periphery with ceramic fibers. Further, the partitioning material 4 of the present invention is surrounded on its outer periphery by a stainless steel foil 5, which is a thin stainless sheet.

<C> Lower floor 2 on which seismic isolation device 1 is installed. On the other hand, a stainless steel slide plate 6 is arranged on the floor of the lower floor 2 on which the seismic isolation device 1 is installed. The partition member 4 is mounted on the slide plate 6.

<D> Behavior during an earthquake. At the time of an earthquake, the lower floor 2 on which the seismic isolation device 1 is installed and the upper floor 7 above it can freely generate horizontal displacement. Then, even in the lift of the parking lot, horizontal displacement occurs on the wall 3 around the lift. In that case, the partition member 4 at the lower edge of the upper floor wall 3 freely slides on the upper surface of the slide plate 6 finished with stainless steel. Therefore, the lift in the parking lot is not damaged by the earthquake.

<E> Airtightness. As described above, the parking lot lift according to the present invention is configured such that the lower floor 2 on which the seismic isolation device 1 is installed and the wall 3 of the upper floor 7 above it are placed on the stainless steel slide plate 6 and the upper floor. This is a structure in which the partition member 4 at the lower edge of the wall 3 is mounted. Therefore, the stainless steel foil 5 surrounding the outer periphery of the partition member 4 is completely in close contact with the slide plate 6, and the airtightness between the upper and lower layers of the seismic isolation device 1 can be reliably maintained.
As a result, even if a fire occurs inside the lift and the carbon dioxide gas is sprayed, the carbon dioxide gas does not leak from the space between the lower floor 2 and the upper floor 7 that are structurally insulated. Therefore, the gas harmful to the human body completely stays inside the lift of the parking lot, and it is safe because it does not diffuse into the surroundings from the space between the lower floor 2 and the upper floor 7, which are structurally insulated.

[0012]

As described above, the structure of the parking lot in the base-isolated building according to the present invention is, as described above, because the stainless steel foil 5 surrounding the outer periphery of the partition member 4 is completely in close contact with the slide plate 6, so that during an earthquake, The horizontal displacement can be absorbed, and on the other hand, due to its high airtightness, carbon dioxide or the like sprayed inside the lift does not leak to the outside of the lift, and does not affect the human body. Furthermore, the configuration of the present invention is very economical because it can be easily formed by relatively inexpensive materials.

[Brief description of the drawings]

FIG. 1 is an explanatory view of an embodiment of the structure of a parking lot in a base-isolated building according to the present invention.

FIG. 2 is an explanatory view of a structure of a wall of a lift in a parking lot.

FIG. 3 is an explanatory view of a building in which a seismic isolation device is installed.

Claims (1)

[Claims] In a building provided with a seismic isolation device on an intermediate floor, a partition member made of non-combustible material is attached to a lower edge of a wall around a lift of a parking lot on a base isolation floor. The structure of a parking lot in a base-isolated building, in which the entire periphery is surrounded by stainless steel foil, stainless steel slide plates are placed on the lower floors of the seismic isolation floor, and partitioning materials are mounted on the slide plate.