JP3061724B2 - 3D seismic isolation floor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method for reducing the amount of floor vibration caused by an earthquake or the like.
It relates to a seismic isolation floor for protecting and properly operating the A equipment.

[0002]

2. Description of the Related Art With the recent development of technology, precision office equipment such as computers and various office automation equipment have been installed in rooms. Such precision office equipment must not only prevent overturning in the event of an earthquake, but also operate normally during such times. For this reason, a part of the indoor floor is used as a base-isolated floor instead of the floor fixed to the building. In this case, the problem is how to connect both the fixed floor and the seismic isolation floor where relative displacement occurs. In this regard, Japanese Patent Publication No. 63-58991 discloses a conventional technique in which a part of a seismic isolation floor is overlapped on a fixed floor, and a stepped portion is supplemented with an elastic member. Also, Shoko 61-17
No. 151 discloses a method of fixing a fixed floor flush with a seismic isolation floor to a building with a hinge. However, Japanese Patent Publication No. 63-
In the technique disclosed in US Pat. No. 5,899,91, the relative displacement in the horizontal direction is performed on both the fixed floor and the surface quake floor. However, since the vertical displacement of the fixed floor is transmitted to the surface quake floor, it is not an earthquake countermeasure. In the technique disclosed in Japanese Utility Model Publication No. 61-17151, the fixed floor and a part of the building are fixed by hinges, so that the load on the fixed floor is applied to the hinges, and there is a problem in strength.

[0003]

SUMMARY OF THE INVENTION The present invention relates to a three-dimensional base-isolated floor cushioning structure capable of absorbing vertical displacement, instead of the conventional structure in which the buffer floor absorbs only horizontal relative displacement. The purpose is to provide.

[0004]

Means for Solving the Problems As a result of intensive studies, the present inventors have used a buffer panel for a buffer section that fills the space between a fixed floor and a seismic isolation floor, and have one end of the buffer panel. It has been found that the above-mentioned object is achieved by fitting the base as a supporting portion to a fixed floor or a base-isolated floor, and has reached the present invention. That is, the present invention relates to a fixed floor of a building, a seismic isolation floor which is installed horizontally in a building and is capable of reciprocating on a certain horizontal plane and upper and lower surfaces, and a buffer unit which fills a space between the fixed floor and the seismic isolation floor. In the three-dimensional seismic isolation floor, the end on the seismic isolation floor side of the buffer panel that is larger than the space of the buffer part is fitted with a projection provided on a spherical or cylindrical support provided on the end of the seismic isolation floor. A three-dimensional seismic isolation floor, wherein a fixed floor side end of the buffer panel is overlapped on a fixed floor, a fixed floor of a building, and a fixed horizontal surface which is horizontally installed inside the building. And a three-dimensional seismic isolation floor comprising a seismic isolation floor capable of reciprocating upper and lower surfaces, and a buffer part filling up the space between the fixed floor and the surface seismic floor, wherein the fixed floor side of a buffer panel larger than the space of the buffer part To the spherical or cylindrical support provided at the end of the fixed floor It was vignetting projections and fitted, a 3-dimensional MenShinyuka, characterized in that superposed ends of MenShinyuka side of the buffer panel on the MenShinyuka.

[0005] In the present invention, the fixed floor is a floor installed integrally with the building.
It shakes with the ground and buildings. On the other hand, the seismic isolation floor is a floor having a function of absorbing vibration of the building, such as a large spring, a rubber material, rollers, bearings, wheels and rails, and the like. It is installed horizontally and can reciprocate on a certain horizontal plane and upper and lower surfaces.

In the three-dimensional seismic isolation floor of the present invention, a buffer panel is used as a buffer part for filling a space between the fixed floor and the seismic isolation floor, and one of the ends of the buffer panel is used as a support part to provide a fixed floor. And may be fitted to the base-isolated floor. By taking such a three-dimensional seismic isolation floor structure,
Both the relative displacement in the horizontal direction and the relative displacement in the vertical direction between the fixed floor and the seismic isolation floor can be simultaneously filled by the buffer panel bridging the two. The structure of the three-dimensional seismic isolation floor of the present invention will be described with reference to the drawings. FIG. 1 is an overall structure, and FIG. 2 is an enlarged view of a portion where a space portion (buffer portion) of a fixed floor portion and a seismic isolation floor portion is joined. One end of the buffer panel 1 is overlapped on the fixed floor 3, and the other end of the buffer panel 1 is supported on the upper column of the seismic isolation floor. Here, the spherical or cylindrical supporting portion 4 has a U-shaped cross section so as to be rotatable.
It has a U-shaped groove 5 in the shape of a letter. The protrusion 6 provided on the spherical or cylindrical support member 4 is fixed with a flat screw or the other end of the buffer panel 1. As a result, when the seismic isolation floor 2 is displaced in the horizontal and vertical directions, the buffer panel 1 operates to follow. FIG.
In the structure shown in FIGS. 2 and 3, the cushioning panel is supported on the seismic isolation floor side, but on the contrary, it is fitted with the projection provided on the spherical or cylindrical support provided on the end of the fixed floor. May be.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are sectional views showing one embodiment of the present invention. FIG. 3 is a cross-sectional view of this embodiment in a normal state. FIG.
5 shows the case where the seismic isolation floor moves to the fixed floor due to the earthquake, and FIGS. 6 and 7 show the case where the seismic isolation floor moves in the direction away from the fixed floor. First, the base-isolated floor is formed around the base-isolated floor and the fixed floor on the wall side, as shown in Fig. 1, and a buffer space (horizontal, vertical displacement absorbing part) between the base-isolated floor and the periphery. It is constructed by overlapping the buffer space between the base-isolated floor and the fixed floor with the buffer panel.

Accordingly, in this embodiment, when an earthquake occurs, the seismic isolation floor moves to the fixed floor as shown in FIG. 4, in which the buffer panel slides in the horizontal direction and the vertical displacement decreases. When displaced, the other end of the buffer panel floats upward on the fixed floor. In this way, also when the horizontal displacement of the seismic isolation part moves to the fixed floor side and / or when the vertical displacement is displaced downward, the other end of the buffer panel floats upward on the fixed floor, The buffer panel follows in three dimensions. Also, as shown in FIG. 5, when the vertical displacement of the seismic isolation floor part is displaced upward, the other end of the buffer panel comes into contact with the fixed floor panel on the fixed floor, and one end of the buffer panel Is supported and fixed to the seismic isolation floor,
Operates following the upward displacement of the base isolation floor.

As shown in FIG. 6, when the seismic isolation floor moves in the direction away from the fixed floor when an earthquake occurs, the buffer panel slides horizontally, and the vertical displacement is displaced downward. At this time, the other end of the buffer panel slightly rises above the fixed floor end. Similarly, when the vertical displacement is displaced upward as shown in FIG. 7, the other end of the buffer panel comes into contact with the fixed floor panel on the fixed floor end, and one end of the buffer panel is free. The seismic floor is supported and fixed, and operates to follow the upward displacement of the seismic isolation floor. In the state where an earthquake has occurred, the following operation of the buffer panel is repeated as shown in FIGS. 4 to 7, but after the end of the earthquake, the state returns to the state of FIG.

[0010]

As is apparent from the above description, according to the present invention, the buffer space (horizontal and vertical displacement absorbing gap) between the seismic isolation floor and the fixed floor is isolated at one end of the buffer panel. The floor is fixed to the floor or fixed floor, and the other end is overlapped with the fixed floor or seismic isolation floor and closed. When the seismic floor moves in the direction away from the fixed floor, the buffer panel slides on the fixed floor against horizontal displacement, and when a vertical displacement occurs, the buffer panel floats up and down, while floating Simultaneously absorbs horizontal and vertical displacement of the base-isolated floor. As a result, the present invention can absorb the vertical displacement of the base-isolated floor in comparison with the conventional example, and can improve the performance of the three-dimensional base-isolated floor. Further, since the structure is simple, construction efficiency can be improved.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing the overall structure of an embodiment of the present invention.

FIG. 2 is a partially enlarged view of an embodiment of the present invention.

FIG. 3 is a cross-sectional view in a normal state.

Fig. 4 When the seismic isolation floor moves to the fixed floor

FIG. 5: When the seismic isolation floor moves to the fixed floor

FIG. 6: When the base-isolated floor moves away from the fixed floor

FIG. 7 shows a case where the seismic isolation floor moves in a direction away from the fixed floor.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Buffer panel 2 Base-isolated floor part 3 Fixed floor part 4 Spherical or cylindrical support part 5 U-shaped groove 6 Projection part 7 Elastic body 8 Post (fixed floor part) 9 Post (seismic isolated floor part)

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-6-56311 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E04H 9/02 331 E04F 15/18 601 E04B 1/36 E04F 15/024

Claims (2)

(57) [Claims] 1. A fixed floor of a building, a base-isolated floor horizontally installed inside the building and capable of reciprocating on a certain horizontal plane and upper and lower surfaces,
And a three-dimensional base-isolated floor comprising a buffer section filling the space between the fixed floor and the base-isolated floor, wherein an end of the buffer panel larger than the space of the buffer section on the base-isolated floor side is attached to an end of the base-isolated floor. A three-dimensional seismic isolation floor, wherein the fixed panel-side end of the buffer panel is overlapped on a fixed floor by fitting with a projection provided on a provided spherical or cylindrical support portion. 2. A fixed floor of a building, a seismic isolation floor horizontally installed inside the building and capable of reciprocating on a given horizontal plane and upper and lower surfaces.
And a three-dimensional base-isolated floor including a buffer section that fills a space between the fixed floor and the base-isolated floor, wherein an end on the fixed floor side of a buffer panel larger than the space of the buffer section is provided at an end of the fixed floor. A three-dimensional seismic isolation floor characterized by fitting a projection provided on a spherical or cylindrical support part, and overlapping an end on the seismic isolation floor side of the buffer panel on the seismic isolation floor.