JP3464094B2 - Unit building - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a unit building having a base isolation structure.

[0002]

2. Description of the Related Art A unit building constructed by arranging a plurality of building units adjacent to each other horizontally and vertically on a foundation is well known as described in Japanese Patent Publication No. 58-37462. . However, in this unit building, the frame of the building unit (mainly composed of columns, floor beams, and ceiling beams) was directly fastened and fixed to the anchor bolts that were planted in the foundation, so earthquakes and traffic vibrations were the basis. There was a problem that it was easily transmitted to the building unit via.

Therefore, in recent years, JP-A-6-15890 has been proposed.
As described in Japanese Patent Publication No. 9, a seismic isolation device made of laminated rubber or the like is provided between the pillar of the building unit and the foundation, and an earthquake or traffic vibration is transmitted to the building unit after being damped by the seismic isolation device. By trying to solve the above problem.

[0004]

However, in the above-mentioned conventional technology, it is difficult to uniformly input the energy of an earthquake or a traffic vibration to a plurality of seismic isolation devices. The amount of deformation of the seismic device varies,
The entire building is easily distorted. 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, which increases the weight, which causes a problem that transportability and installation workability are deteriorated. there were.

In view of the above problems, the present invention has an object to efficiently construct a unit building having a seismic isolation function.

[0006]

In order to achieve the above object, in the unit building according to claim 1 of the present invention, columns are provided at four corners and the columns are connected by ceiling beams and floor beams. constitute a box-like building unit having a, in units building constructed by a plurality located adjacent the building unit on a foundation, the isolator is provided between the pillar and the base of each building unit, building The cross section of the frame of the unit is exempt
Frame of building unit of unit building without seismic device
Seismic isolation devices located under the same building unit are different from the floor beams of the building unit.
In the unit building according to claim 2 of the present invention, the structure is connected by a frame , which is a body, and the frame is diagonally positioned with a horizontal frame connecting adjacent seismic isolation devices. It is configured to include a diagonal frame member that connects the seismic isolation devices together.

[0007]

In the unit building according to the first aspect of the present invention, energy such as an earthquake or a traffic vibration is input to the four seismic isolation devices substantially evenly through the frame material, and after being attenuated by these seismic isolation devices, the building unit To enter. In this way, by inputting energy such as an earthquake or a traffic vibration into the four seismic isolation devices substantially evenly, the amount of deformation of the seismic isolation devices is also approximately equalized, so that distortion of the building unit is less likely to occur. Therefore,
It is not necessary to increase the cross section of the frame of the building unit, and the weight of the building unit can be reduced. In the unit building according to claim 2 of the present invention, since the seismic isolation devices are connected to each other with high strength by including the horizontal member and the diagonal member, distortion of the building unit can be reliably prevented. You can

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION First, based on FIGS. 1 to 4,
The unit building of the first embodiment will be described in detail. FIG. 1 is a schematic view of a unit building H1 according to the first embodiment, and FIG. 2 is an elevational view showing a main part of the unit building H1 according to the first embodiment. The unit building H1 is constructed in a two-story structure. Each of the floor portion and the second floor portion is composed of four building units 1 that are adjacently arranged in two rows and two columns, and the building unit 1 that constitutes the first floor portion is provided with a seismic isolation device 3 on a foundation 2. Has been installed.

As shown in FIG. 3, the building unit 1 is provided with pillars 11 at four corners, the upper ends of these pillars 11 are connected by a ceiling beam 12, and the lower ends of the pillars 11 are connected by a floor beam 13. By constructing a skeleton by this, in this skeleton,
It is formed in a box shape by appropriately attaching a floor material, a ceiling material, and a wall material (not shown).

The seismic isolation device 3, as shown in FIG.
A laminated rubber 33 is provided between the steel plates 31 and 32, and the laminated rubber 33 is fixed to the steel plates on both sides. One is provided between each pillar 11 of the building unit 1 and the foundation 2. One steel plate 32 is fixed to the foundation 2 with anchor bolts A and nuts N, and the other steel plate 31 is fixed to the floor beam 13 of the building unit 1 with bolts B and nuts N.

Further, as shown in FIG. 4, the four seismic isolation devices 3 located under the same building unit 1 are connected to each other by lateral members 4 so that the seismic isolation devices 3 located at adjacent positions are slanted to each other. The seismic isolation devices 3 in FIG.
The lateral members 4 and the diagonal members 5 are fixed to the steel plate 31 on the upper side of the seismic isolation device 3 by bolts B and nuts N at their ends.

That is, in this unit building H1, energy such as an earthquake or a traffic vibration is input to the four seismic isolation devices 3 almost evenly through the horizontal material 4 and the diagonal material 5 and attenuated by these seismic isolation devices 3. After that, input to the building unit 1.
Thus, by inputting energy such as an earthquake or a traffic vibration into the four seismic isolation devices 3 almost evenly, the seismic isolation device 3
Since the amount of deformation of the building unit 1 is also substantially equal, distortion of the building unit 1 is less likely to occur. Therefore, it is not necessary to increase the cross section of the frame of the building unit 1, and the weight of the building unit 1 can be reduced. Further, by reducing the weight of the building unit 1, it is possible to improve transportability and installation workability.

When building the unit building H1,
In advance, seismic isolation device 3, horizontal member 4 and diagonal member 5 in the factory
If is fixed to each building unit 1, at the construction site,
All you have to do is to install the building unit 1 on the foundation 2,
Very few work steps are required.

Next, the unit building of the second embodiment will be described. The unit building H2 of this Embodiment 2 is
The seismic isolation device 3 has a structure capable of supporting a plurality of pillars 11, and one seismic isolation device 3 supports two pillars 11 at a portion where the pillars 11 of the two building units 1 gather.
In the part where the pillars 11 of one building unit 1 gather, one seismic isolation device 3 has a structure in which four pillars 11 are supported. Therefore, a total of 16 columns 11 can be supported by nine seismic isolation devices 3, and the number of seismic isolation devices 3 is greatly reduced compared to the first embodiment. Since the other configurations are the same as those in the first embodiment, the same reference numerals as those in the first embodiment are attached to the drawings and the description thereof will be omitted.

The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific configuration is not limited to this embodiment, and design changes and the like can be made without departing from the scope of the present invention. Even if it exists, it is included in the present invention. For example,
In the embodiment, the seismic isolation device 3 uses the two steel plates 31, 32.
Although the laminated rubber 33 is provided between the laminated rubber 33 and the laminated rubber 33 is fixed to the steel plates 31 and 32 on both sides, the seismic isolation device has a lower surface of the laminated rubber or an upper surface of the lower steel plate. A Teflon layer on the lower steel plate and slide it on the lower steel plate to replace it, or install a ball bearing between the lower surface of the laminated rubber and the upper surface of the lower steel plate to lower the laminated rubber. It may be replaced with a rolling support on the side steel plate.

[0016]

As described above, in the unit building of the present invention, the seismic isolation devices are connected to each other by the frame material, so that an earthquake or a traffic vibration can occur without increasing the cross section of the frame of the building unit. Since it is possible to prevent the building unit from being distorted by such energy, it is possible to obtain an effect that the transportability and the installation workability can be improved by reducing the weight.

[Brief description of drawings]

FIG. 1 is a schematic diagram of a unit building according to a first embodiment.

FIG. 2 is an elevational view showing a main part of the unit building according to the first embodiment.

FIG. 3 is a perspective view showing a framework of a building unit.

FIG. 4 is a diagram showing how the seismic isolation device and the frame are attached to the building unit.

FIG. 5 is a schematic diagram of a unit building according to the second embodiment.

FIG. 6 is an elevation view showing a main part of the unit building according to the second embodiment.

[Explanation of symbols]

1 building unit 11 pillars 12 ceiling beams 13 floor beams 2 foundation 3 seismic isolation device 4 Horizontal material 5 diagonal frame

   ─────────────────────────────────────────────────── ─── Continued front page       (56) Reference JP-A-6-158909 (JP, A)                 JP-A 1-214645 (JP, A)                 JP-A-4-64745 (JP, A)                 JP-A-5-141464 (JP, A)

Claims (2)

(57) [Claims] 1. A box-shaped building unit having a skeleton in which columns are provided at four corners and the columns are connected by a ceiling beam and a floor beam, and a plurality of the building units are adjacently arranged on a foundation. In a unit building configured as above, seismic isolation devices are installed between the pillars and foundations of each building unit, and the seismic isolation devices are not installed in the cross section of the building unit frame.
Larger than the cross section of the building unit skeleton of the unit building
The unit building is characterized by the fact that seismic isolation devices located under the same building unit are connected to each other by a bridge material that is separate from the floor beams of the building unit . 2. The frame member includes a horizontal frame member that connects seismic isolation devices located at adjacent positions and a diagonal frame member that connects seismic isolation devices located at an oblique position. Unit building.