JPH1130052A - Unit building and building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve efficiencies in execution of work and economy for a base isolation device and to make the base isolation device develop effective performance by a method wherein base isolation bearings provided at places between columns of building units and footings are arranged, stretching over corners of the adjoining building units, and the adjoining building units are connected with one another with the base isolation bearings. SOLUTION: In a unit building H1 built up by arranging building units U1 constituting the first story and the second stroy adjoiningly on footings 2, base isolation bearings 3, 3 are provided at places between columns 11 and the footings 2. The base isolation bearings 3 are arranged in four units respectively at corners at the outer periphery of the unit building H1, in four units, stretching over the corners of the building units U1, at the outer periphery on positions where the building units are adjoining and in one unit, stretching over four corners of the building units, at the center where the four building units U1 are adjoining, and two pairs of the base isolation bearings 3, 3 positioned on diagonal lines as seen in the plane view of the building unit U1 are connected with the horizontal members 4. As the base isolation bearings 3 are arranged, stretching over the corners of the adjoining building units U1, teh number of base isolation bearings 3 for installation can be reduced, improving efficiencies in execution of work and economy.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a unit building and a building provided with a seismic isolation bearing.

[0002]

2. Description of the Related Art In a light-weight building such as a unit building or a wooden building by a conventional method, anchor bolts laid on a foundation are used.
Since the frame of the building (mainly columns, floor beams, ceiling beams, etc.) is directly fastened and fixed, there is a problem that earthquakes and traffic vibrations are easily transmitted to the building via the foundation.

In recent years, Japanese Patent Application Laid-Open No. 6-15890 discloses
As described in Japanese Patent Publication No. 9, a seismic isolation bearing made of laminated rubber or the like is provided between a pillar and a foundation of a building unit, and an earthquake or traffic vibration is transmitted to the building unit after being attenuated by the seismic isolation bearing. I try to solve the above problem.

[0004]

However, in the prior art described in the above publication, it is difficult to equally input the energy of the earthquake or traffic vibration to a plurality of seismic isolation bearings. The amount of deformation of the bearing varies, and the building is easily distorted as a whole. Therefore, in order to prevent the building from being distorted, it is necessary to increase the cross section of the frame of each building unit, thereby increasing the weight, causing a problem of deteriorating transportability and installation workability. there were.

Further, since seismic isolation bearings are provided between the pillars and the foundation of each building unit constituting the unit building, two to four seismic isolation bearings must be installed at the corners of adjacent building units. No. Therefore, there was a problem in terms of workability and economy.

Furthermore, in the conventional building, including the unit building, a bundle is provided between the pillars separately from the foundation in order to prevent the floor from vibrating or bending. There were no bundles applicable to the building.

Therefore, the present invention has been made to solve the above-mentioned problems of the prior art, and a first object of the present invention is to
The objective is to provide a unit building with seismic isolation bearings that are excellent in workability and economy. The second purpose is to provide a building with excellent seismic isolation performance.

[0008]

According to the first aspect of the present invention, there is provided a box-shaped building unit having a frame provided with pillars at four corners and connecting the pillars with a ceiling beam and a floor beam. In a unit building in which a plurality of building units are arranged adjacently on a foundation, seismic isolation bearings are provided between the pillars and the foundation of each building unit, and seismic isolation bearings provided at the corners of adjacent building units are adjacent. And the adjacent building units are connected to each other by the seismic isolation bearings, and the seismic isolation bearings are connected by a frame.

According to a second aspect of the present invention, in the building unit of the first aspect, two pairs of seismic isolation bearings located on a diagonal line in a plan view of the building unit are connected by a frame.

According to a third aspect of the present invention, in a building in which a plurality of seismic isolation bearings are provided at intervals, a bundle provided between the seismic isolation bearings is provided between the building and the foundation via a vibration-proof material. The one that is attached.

According to a fourth aspect of the present invention, in a building in which a plurality of seismic isolation bearings are provided at intervals, a seismic isolation bearing bundle comprising an upper bundle and a lower bundle is provided between the seismic isolation bearings. The upper part of the bundle and the lower part of the bundle are rotatably fitted and joined by a combination of a spherical body and a bowl-shaped body fitted around the spherical body.

According to a fifth aspect of the present invention, in the building of the fourth aspect, the seismic isolation bearing bundle has a restoring mechanism such as a spring between the upper part and the lower part of the bundle.

[0013]

In the unit building according to the first aspect, the number of seismic isolation bearings can be reduced because the seismic isolation bearings provided at the corners of the adjacent building units are arranged across the adjacent corners. It has excellent workability and economy. Also,
Adjacent building units are connected by the seismic isolation bearings, and the seismic isolation bearings are connected by frames, so that energy such as earthquakes and traffic vibrations are almost equally attenuated by each seismic isolation support before each building Input to the unit makes it difficult for the building unit to be distorted.

According to a second aspect of the present invention, in the building unit according to the first aspect, two pairs of seismic isolation bearings located on a diagonal line in a plan view of the building unit are connected by a frame member. The connection strength between the seismic isolation bearings is increased, and the distortion of the building unit can be reliably prevented.

According to the third aspect of the present invention, since the bundle provided between the seismic isolation bearings is attached between the building and the foundation via the vibration isolating material, the building is combined with the seismic isolation bearing, and an earthquake or the like is caused. Energy is well attenuated, and the effect of seismic isolation is excellent. In addition, floor vibrations other than earthquakes can be prevented by the vibration-proof material, and the structure is simple, so the workability and economy are excellent.

According to a fourth aspect of the present invention, the upper part and the lower part of the seismic isolation bearing bundle are rotatably fitted by a combination of a spherical body and a bowl-shaped body fitted around the spherical body. Since they are joined, the energy of an earthquake or the like is further attenuated, and the seismic isolation effect is further improved.

According to the fifth aspect of the present invention, the seismic isolation bearing bundle has a restoring mechanism such as a spring between the upper part and the lower part of the bundle. it can.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 5 show one embodiment of the present invention according to claims 1 and 2, wherein FIG. 1 is a schematic diagram of a unit building provided with a seismic isolation bearing, and FIG. 2 is a diagram arranged on a foundation. 1 is a schematic front view of a unit building, FIG. 3 is a perspective view of a connected seismic isolation bearing, FIG. 4 is an enlarged perspective view of the seismic isolation bearing of FIG.
FIG. 5 is a perspective view of the frame structure of the building unit.

In FIG. 1 (a), H1 is a unit building, and this unit building H1 is installed on a foundation 2 by arranging four building units U1 constituting the first floor portion adjacent to each other. Four building units U1 constituting a second floor portion are arranged adjacent to a first floor portion. In addition,
GL is a ground line. The above building unit U1
As shown in FIG. 5, as shown in FIG. 5, columns 11, 11,... Are provided at four corners, and the frame 11 has a frame structure 1 in which the columns 11 are connected by ceiling beams 12 and floor beams 13. The interior wall, ceiling, floor, equipment, etc. are attached according to the application.

The pillar 11 and the foundation 2 of each building unit U1
There are seismic isolation bearings 3, 3, ... between them. This seismic isolation bearing 3 is, as shown in FIG.
Four units are installed at each of the outer corners of the unit 1, and
At the position where the building units U1 and U1 are adjacent to each other on the outer periphery of No. 1, four units are installed across the corners, and the unit building H
At a position where four building units U1 are adjacent to each other at the center of one unit, one unit is installed across the corners of each building unit U1, and a total of nine seismic isolation bearings 3 are installed.

As shown in FIG. 3, the seismic isolation bearing 3 is a rolling type seismic isolation bearing, and includes a first tray 31 installed and supported on a foundation 2, a column 11 or a column of a building unit U1. A second tray 32 fixedly supported by the floor beam 13 connected to the first tray 11, the first tray 31, and the second tray 32;
And a ball 33 interposed between the trays 32.

The contact surfaces 34 and 35 of the first tray 31 and the second tray 32 with the ball 33 are formed as curved surfaces. The ball 33 is in contact with the contact surface 3 of the first pan 31.
The rolling type seismic isolation bearing 3 vibrates while rolling along the contact surface 35 of the second tray 32 and the second receiving plate 32, and reduces the vibration of the unit building H1 at the time of the earthquake and performs the seismic isolation function.

The second tray 32 of the seismic isolation bearing 3 is fixed to the column 11 of the building unit U1 or to the floor beam 13 connected to the column 11, but is adjacent to the building unit U1.
The seismic isolation bearings 3 that are arranged across are fixed to the respective building units U1, and adjacent building units U1,
U1 is connected by this seismic isolation bearing 3.

It is more preferable that the seismic isolation bearing 3 is provided with a lifting prevention means.

As shown in FIGS. 1A and 3, the seismic isolation bearing 3 includes two pairs of seismic isolation bearings 3, 3 located on a diagonal line of the building unit 1 in a plan view. Are linked.
Attachment portions 41 are formed at both ends of the frame member 4, and the attachment portions 41 are overlapped with and attached to the attachment portions 36 provided on the periphery of the second tray 32 of the seismic isolation bearing 3.

The frame member 4 may be partially omitted and connected as shown in FIG. 1B instead of the one shown in FIG. 1A. (B) In the figure, the seismic isolation bearings 3, 3 attached to the building unit U1 located in the center of the front row
The frame member 4 for connecting the spaces is omitted.

Next, a method of constructing the unit building H1 having the above configuration will be described. First, a predetermined number of seismic isolation bearings 3, 3,... Were cross-coupled with the frames 4, 4,..., And the combined seismic isolation bearings 3 were installed on the foundation 2, and attached to the foundation 2. The first tray 31 of the seismic isolation bearing 3 is fixed with an anchor bolt (not shown). Next, the building units U1, U1,... Constituting the first floor are installed on the foundation 2 on which the seismic isolation bearing 3 is installed, and the second tray 32 of the seismic isolation bearing 3 is fixed to the building unit U1. I do. Finally, the building units U1 and U1 forming the second floor are placed on the building units U1 and U1 forming the first floor, thereby completing the unit building H1.

In the unit building H1 of this embodiment, since the seismic isolation bearings 3 provided at the corners of the adjacent building unit U1 are arranged over the adjacent corners, the number of the seismic isolation bearings 3 is reduced. And the workability and economy are excellent. By the way, in the conventional unit building, since it is arranged at each corner of the building unit U1, a total of 16 seismic isolation bearings 3 are required. In this embodiment, nine seismic isolation bearings 3 are required. I'm done.

Further, since the adjacent building units U1 are connected by the seismic isolation bearing 3, the energy such as an earthquake or traffic vibration is substantially equally attenuated by the seismic isolation bearings 3, 3. The input to each of the building units U1 and U1 makes it difficult for the building unit U1 to be distorted.

Further, the unit building H1 of this embodiment
, The two pairs of seismic isolation bearings 3, 3 located on a diagonal line in plan view of the building unit U1 are connected by the frame 4, so that the connection strength between the seismic isolation bearings 3 increases, and the building unit The distortion of U1 can be reliably prevented.

Next, another embodiment of the present invention will be described.
FIG. 6 is a schematic view showing a lower portion of a building provided with a seismic isolation bearing according to an embodiment of the present invention. In the figure, H2 is a building, and this building H2 is a wooden detached house, and a building upper part H22 is constructed on a base H21.

In the building H2 of this embodiment, the base H21
Pillars H23 are erected at both ends of the pillar H23 and the foundation 2
The base isolation bearing 30 is provided between the bases 0 through the base H21. A bundle 50 is provided between the columns H23.
A butyl rubber sheet-like vibration isolator 60 is attached to the upper portion of the base H0.
And the bundle base 501.

The above-mentioned seismic isolation bearing 30 is a cylindrical laminated rubber, which is formed by alternately stacking a plurality of cylindrical rubbers and thin steel plates between two vertically disposed trays. In addition, a high-damping rubber having a low hardness capable of effectively absorbing energy such as an earthquake is used as the rubber material, thereby providing a seismic isolation function.

In the building H2 of the present embodiment, the bundle 50 provided between the pillars H23 is attached between the building H2 and the foundation 501 via the vibration isolator 60.
Combined with a seismic isolation bearing 30 provided between 23 and the foundation 20, energy such as an earthquake is well attenuated, and the seismic isolation effect is excellent. In addition, floor vibrations other than earthquakes (for example, traffic vibrations and vibrations generated by the occupants themselves) are also used as the vibration isolator 60.
The structure is simple, so the workability and economy are excellent.

Next, another embodiment of the present invention will be described. 7 and 8 show an embodiment of the present invention according to claims 4 and 5, wherein FIG. 7 is a schematic view showing a lower part of a building provided with a seismic isolation bearing, and FIG. It is sectional drawing of the seismic isolation bearing bundle used.

In FIG. 7, H3 is a unit building, and the unit building H3 is composed of a building unit formed by a floor panel H31 and a wall panel H32 erected on the floor panel H31. The present embodiment is different from the second embodiment in that a seismic isolation bearing bundle 70 is attached in place of the bundle 50 of the second embodiment, and is otherwise the same as the second embodiment. Therefore, the same components as those of the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted. Only different components will be denoted by different reference numerals.

In the building H3 of this embodiment, a wall panel H32 is erected on a floor panel H31, and seismic isolation bearings 30, 30 are provided between the floor panel H31 and the foundation 20. A seismic isolation bearing bundle 70 is installed and mounted on the foundation 501 between the seismic isolation bearings 30, 30.

As shown in FIG. 8, the seismic isolation bearing bundle 70 includes a bundle upper portion 71 and a bundle lower portion 73, and the bundle upper portion 71 and the bundle lower portion 73 are fitted around a sphere 74 and the periphery of the sphere 74. And is rotatably fitted and joined in combination with the bowl-shaped body 72. 75 is a saucer, which is a base 501
It is provided to be installed and mounted on top.

The seismic isolation bearing bundle 70 has a restoring mechanism including a spring body 76 around the upper part 71 and the lower part 73 of the bundle. The spring body 76 is divided and attached at four locations around the periphery. One end of the spring body 76 is fixed to the upper bundle portion 71, and the other end is attached to the periphery of the tray 75.

In the building H3 in which the seismic isolation bearings 30 of this embodiment are provided, the seismic isolation bearing bundle 7 is provided between the seismic isolation bearings 30, 30.
0 is installed on the base 501 and attached. The upper part 71 and the lower part 73 of the seismic isolation
And the bowl-shaped body 72 fitted around the sphere 74 and rotatably fitted and joined, so that energy such as an earthquake is further attenuated, and the seismic isolation effect is more immediate. It is.

Further, the seismic isolation bearing bundle 70 is attached to a bundle upper portion 71.
Since a restoration mechanism including a spring body 76 is provided between the lower portion 73 and the bundle lower portion 73, restoration of post-earthquake vibration is quickened, and floor vibration can be reduced.

[0042]

According to the first aspect of the present invention, since the seismic isolation bearings provided at the corners of the adjacent building units are arranged over the adjacent corners, the number of the seismic isolation bearings is reduced. It can be reduced, and it is excellent in workability and economy.
In addition, since adjacent building units are connected by the seismic isolation bearings and the seismic isolation bearings are connected by the frame, energy such as earthquakes and traffic vibrations are almost equally attenuated by each seismic isolation bearing. After that, the data is input to each building unit, and distortion of the building unit is less likely to occur.

According to a second aspect of the present invention, in the building unit of the first aspect, two pairs of seismic isolation bearings located on a diagonal line in a plan view of the building unit are connected by a frame. The connection strength between the seismic isolation bearings is increased, and the distortion of the building unit can be reliably prevented.

According to the third aspect of the present invention, since the bundle provided between the seismic isolation bearings is attached between the building and the foundation via the vibration isolating material, the building is combined with the seismic isolation bearing, and an earthquake or the like is caused. Energy is well attenuated, and the effect of seismic isolation is excellent. In addition, floor vibrations other than earthquakes can be prevented by the vibration-proof material, and the structure is simple, so the workability and economy are excellent.

According to a fourth aspect of the present invention, in the building provided with a seismic isolation bearing, a seismic isolation bearing bundle is installed and mounted on a foundation between the seismic isolation bearings. Since the bundle upper part and the bundle lower part are rotatably fitted and joined by a combination of a sphere and a bowl-shaped body fitted around the sphere, energy such as an earthquake is further attenuated. The seismic isolation effect is even better.

According to the fifth aspect of the present invention, since the seismic isolation bearing bundle has a restoring mechanism such as a spring between the upper part and the lower part of the bundle, the post-earthquake vibration can be quickly restored and floor vibration can be reduced. it can.

[Brief description of the drawings]

FIG. 1 is a schematic view of a unit building provided with a seismic isolation bearing according to an embodiment of the present invention according to claims 1 and 2;

FIG. 2 is a schematic front view of the unit building of FIG. 1 placed on a foundation.

FIG. 3 is a perspective view of a connected seismic isolation bearing.

FIG. 4 is an enlarged perspective view of the seismic isolation bearing of FIG. 3;

FIG. 5 is a perspective view of a frame structure of a building unit.

FIG. 6 is a schematic view showing a lower part of a building provided with a seismic isolation bearing according to an embodiment of the present invention.

FIG. 7 is a schematic view showing a lower portion of a building provided with a seismic isolation bearing according to an embodiment of the present invention according to claims 4 and 5;

FIG. 8 is a sectional view of a seismic isolation bearing bundle used in the building of FIG. 7;

[Explanation of symbols]

 H1 unit building U1 building unit 1 frame structure 11 column 12 ceiling beam 13 floor beam 2 foundation 3 seismic isolation bearing 4 frame H2 building H21 base H23 pillar H3 unit building H31 floor panel H32 wall panel 20 foundation 30 seismic isolation bearing 50 bundle Reference Signs List 60 anti-vibration material 70 seismic isolation bearing bundle 71 upper bundle 72 bowl-shaped body 73 lower bundle 74 sphere 76 spring body

Claims (5)

[Claims] 1. A box-like building unit having a frame provided with pillars at four corners and connecting said pillars with ceiling beams and floor beams, and a plurality of such building units are arranged adjacently on a foundation. Seismic isolation bearings are installed between the pillars and foundations of each building unit.
Seismic isolation bearings provided at the corners of adjacent building units are arranged straddling the adjacent corners, adjacent building units are joined by the seismic isolation bearings, and the seismic isolation bearings are connected by frames. Unit building characterized by being done. 2. The unit building according to claim 1, wherein two pairs of seismic isolation bearings located on a diagonal line in plan view of the building unit are connected by a frame. 3. A building in which a plurality of seismic isolation bearings are provided at intervals, wherein a bundle provided between the seismic isolation bearings is attached between the building and a foundation via a vibration isolator. Building. 4. In a building in which a plurality of seismic isolation bearings are provided at intervals, a seismic isolation bearing bundle consisting of a bundle upper part and a bundle lower part is attached between the building and the foundation between the seismic isolation bearings. The upper and lower bundles are rotatably fitted and joined by a combination of a sphere and a bowl-shaped body fitted around the sphere. 5. The building according to claim 4, wherein the seismic isolation bearing bundle has a restoring mechanism such as a spring between the upper part and the lower part of the bundle.