JPH01304239A - Earthquake-isolating elastic part - Google Patents

Abstract

PURPOSE:To obtain an earthquake-proof device to avoid damage suffering from an earthquake by a method in which elastic parts are attached on the same axis in a well-balanced manner to upper and lower faces of a plate connector of metal, plastics, etc., and inserted between the base of building and the foundation. CONSTITUTION:Elastic parts 2 are connectedly set in a well-balanced manner on the upper and lower faces of a rectangular connecting plate 1, and fitting plates 3 of the same form as the plate 1 are fixed to the upper end of the upper part 2 and the lower end of the lower part 2. An earthquake-isolating elastic part is placed on the concrete foundation 5, and anchor bolts 6 projectionally set on the foundation 5 are fixed to the holes 8 of the lower fitting plate 3 with nuts 9. Furthermore, a base 4 is placed on the plate 3 above the elastic parts and fixed with bolt and nut 7 by using a fitting hole 8. The fitting can thus be easily attained, and the vibration or rocking movement of building can also be lessened to avoid the occurrence of damage.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a seismic isolation member used as a seismic isolation device for buildings, floor members in buildings, roads, evacuation plazas, etc. be.

[Prior art] Seismic isolation elastic members used as seismic isolation devices for buildings include:
Single laminated rubber and springs are known.

With regard to any of the above seismic isolation devices such as single layered rubber or springs, there is no idea yet of equipping the roads or evacuation plazas with them to provide seismic isolation.

[Problems to be Solved by the Invention] In the case of single laminated rubber or springs as described above, the positional relationship should be determined individually for attachment to the building or the floor members of the building, etc. Therefore, handling is troublesome.

An object of the present invention is to eliminate the drawbacks mentioned above and to construct a seismic isolation member that can be used as a seismic isolation device for buildings, building floor members, roads, evacuation plazas, etc. That is.

[Means for Solving the Problems] The gist of the structure of the present invention (-) is to provide a seismic isolation device in which a plurality of elastic bodies are arranged in series on the upper and lower surfaces of the connecting plates, respectively.
It is a sexual member.

For the above-mentioned connecting plate, a rectangular, square, or circular plate material with a size of 1 rrf or less is usually suitable from the viewpoint of handling convenience. As for the material, metal, plastic, etc. can be freely adopted. As will be described later, when the elastic bodies attached to the two sides of the connecting plate and the elastic body attached to the lower side are located coaxially in the vertical direction, the connecting plate does not necessarily have such strength. Not required. However, if it cannot be positioned coaxially, the load applied to the upper horizontal body is
Since this connecting plate will disperse the energy to a plurality of elastic bodies below, it is necessary to have sufficient strength to accommodate this. The necessary sufficient strength varies greatly depending on the purpose of use, for example, whether it is used as a seismic isolation device to support the frame of a building or as a seismic isolation device installed on the underside of a floor member. shall be determined.

The elastic bodies may be attached to the upper and lower surfaces of the connecting plate in a series so that they are located on the same axis, or they may be attached to the upper and lower surfaces of the connecting plate. If anything, the former is more appropriate.

In any case, the elastic body is placed on the upper or lower surface of the connecting plate to maintain balance.

]-The elastic body can be molded into various shapes. For example, it can be formed into a cylindrical shape, a tapered cylinder whose diameter becomes larger toward the connecting plate, or a tapered inner phase whose diameter becomes smaller halfway toward the connecting plate. Other shapes are also possible. The material is not limited to a specific material as long as it has the necessary elasticity, mechanical strength, weather resistance, etc. Natural rubber-based or chloroprene-based synthetic rubber is generally suitable.

In addition, the upper end of the elastic body on the upper surface of the connecting plate and the glue on the lower surface of the connecting plate are fixed to the lower end of the outer body, respectively, and 4=j plates are fixed iQ for buildings, flooring materials of buildings, and other objects requiring seismic isolation. It is convenient for reprinting.

The gist of the second configuration of the present invention is an elastic member for seismic isolation in which a plurality of elastic bodies are inserted between upper and lower mounting plates and held in a sandwiched state.

2. The upper and lower mounting plates may be configured to have a square, rectangular, or circular shape with the same dimensions as the connecting plate. The material is also the same as that of the connecting plate.

” - The shape and material of the outer array body also apply to the present invention.
It is similar to that of .

[Function] When the seismic isolation elastic member described above is used as a seismic isolation device for a building, for example, it is inserted between a foundation and a foundation. Of course, the base and one elastic body of the seismic isolation elastic member are bonded together using adhesive or other bonding means, and the lower elastic body and the foundation are also bonded in the same manner.

If a mounting plate is attached to the upper end of the upper elastic body and the lower end of the lower elastic body, they can be easily connected by attaching the mounting plates to the respective foundations or bases. This connection is suitably made using bolts, nuts, etc.

When inserted between the foundations of a building in this way, the natural period of the building becomes longer, so the acceleration response becomes smaller, and in the event of an earthquake, regardless of the large vibration, It is possible to reduce the vibration or shaking of a building and avoid damage caused by it.

In addition, when attaching to floor members such as various floorboards, a seismic isolation bony member is fixed to the lower surface thereof. The elastic body on the second side of the connecting plate is fixed to the lower surface of the floor member with adhesive or the like. If a seismic isolation bony member of the type in which the mounting plate is attached to the upper end of the upper elastic body and the lower end of the lower elastic body is adopted, the upper mounting plate can be bonded and fixed to the bottom surface of the floor member. It can be easily attached to the floor member (4).It is easier to install this way.

In this way, if a seismic isolation elastic member is installed in the flooring of a building, even if the dyed material itself shakes greatly during an earthquake, only a slight vibration will be transmitted to the floor surface. It is possible to protect the articles, etc. installed on top of this.

Needless to say, it also damps vibrations other than earthquakes.

It also makes walking feel softer.

When installing on a road or evacuation plaza, use this or, for example,
If the road is constructed of concrete pavement, it is appropriate to insert an elastic member for seismic isolation between the roadbed and the concrete slab. The connections between the upper and lower elastic bodies with the roadbed or concrete slab are the same as those described in the other examples above. In this case, cushioning materials such as rubber should be inserted between both sides of the road and the outside of the road or around the evacuation plaza.

However, when seismic isolation elastic members are used like levers, the road surface does not shake too much even in the event of an earthquake, etc.
If the safety of moving cars, etc. can be ensured and the area is an evacuation plaza, the shaking of the plaza can be reduced to ensure the safety of evacuees.

The seismic isolation elastic member of the present invention has elastic bodies arranged in two stages, upper and lower, with a connecting plate in between, so that the seismic isolation effect is ensured in two stages by the upper elastic body and the lower elastic body. be done.

In the second aspect of the present invention, the elastic member for seismic isolation is such that the installation of a seismic isolation target to an object requiring seismic isolation is always performed by connecting and fixing the seismic board.
The method of use is the same as that of the present invention except that the seismic isolation effect is achieved in one step.

[Example] A first example of the present invention will be described below based on the drawings.

As shown in FIGS. 1(a) and 1(b), a plurality of elastic bodies 2.2 are provided on the second and lower surfaces of the rectangular connecting plate l, respectively.
... are arranged in a well-balanced manner, and the upper elastic body 2.2...
- Attachment plates 3.3 having the same shape as the connecting plate 1 are fixed to the upper end and the lower end of the lower elastic bodies 2.2, respectively.

The connecting plate 1 was made of a metal plate. ``Second Note A'' Board 3.
The same applies to 3.

In addition, the elastic bodies 2, 2, . − to array outer body 2
．． 2... and the connecting plate 1 and the mounting plate 3.3 are all connected with adhesive.

1. Elastic body 2.2... was molded into a cylindrical shape from chloroprene-based synthetic rubber.

Here, an example in which this seismic isolation elastic member is used for seismic isolation of a wooden building will be described.

As shown in FIG. 2, this seismic isolation elastic member is used by being inserted between the base 4 of the building and the concrete foundation 5.

For installation, before placing the foundation 4 on the concrete foundation 5,
This is done by placing an elastic member for seismic isolation on the concrete foundation 5. The above installation is carried out by passing the anchor bolt 6 protruding from the concrete base faS through the mounting hole 8.8.8 of the lower mounting plate 3, and fixing it by tightening it with the nut 9.9.9. do.

The base 4 is also placed on the mounting plate 3'2 above the seismic isolation elastic member, and connected and fixed with bolts and nuts 7 using the mounting holes 8,8,8.

However, the elastic member for seismic isolation described in 2.
. . are arranged accurately and in a well-balanced manner, and since a plurality of them are fixed to the connecting plate 1, several phrases can be written extremely accurately and quickly. In the case of this example, the top and bottom boards 3.3 are also installed with 1, so the installation to the foundation 4 and concrete foundation 5 is done by mounting the mounting board 3.3.
It is even more efficient because it can be done with

Also, like this, the building's foundation 4 and concrete 1/foundation 5
When an elastic member for seismic isolation is inserted between
To reduce the vibration or shaking of a building in the event of an earthquake, regardless of its large vibration or shaking, and to avoid damage caused by it. In addition, this seismic isolation elastic member has elastic bodies 2, 2, etc. disposed in two stages, upper and lower, between the connecting plate 1, so that the seismic isolation effect is produced in two stages.

3(a) and 3(b) show a second embodiment of the present invention, in which elastic bodies 12, 12, etc. are fixed on the second and lower surfaces of the circular connecting plate 11. This is what I did.

The elastic bodies 12, 12, . Molded from chloroprene-based synthetic rubber.

As in the first embodiment, this can be inserted between the base of a building and used for seismic isolation. However, this example is suitable for placing it in spots rather than inserting it over the entire area between the foundations.

The ease of installation, good seismic isolation effect, etc. are the same as in the first embodiment.

FIGS. 4(a) and 4(b) show a third embodiment of the present invention, in which elastic bodies 22, 22, etc. are fixed to the upper and lower surfaces of a square connecting plate 21. It is. The elastic bodies 22, 22, . . . are formed into tapered cylinders whose diameter increases toward the connecting plate 21. Molded from chloroprene-based synthetic rubber.

This is used by being fixed to the underside of floor members such as floorboards that make up the floor of a building. In the event of an earthquake, by installing it on the sub-floor surface with two pieces that are bonded and fixed to the underside of the floorboard,
Even if the building itself shakes greatly, only a small amount of vibration is transmitted to the floor surface, thus protecting articles installed on the floor surface.

Needless to say, other vibrations and the like are also damped. It also makes walking feel softer.

FIG. 5 shows a second embodiment of the present invention, in which a plurality of cylindrical elastic bodies 32, 32 are disposed between upper and lower mounting plates 31, 31.
... are arranged in a well-balanced manner and held in a sandwiched state.

The elastic bodies 32, 32, . Above mounting plate 3
1.31 is constructed from a rectangular metal plate.

This elastic member for seismic isolation can be used as a seismic isolation system for buildings, similar to the first embodiment of the present invention. Installation procedures and other installation methods are exactly the same.

In terms of action, since the elastic bodies 32, 32, .

[Effects of the Invention] According to the aspect of the present invention, since the plurality of elastic bodies are accurately positioned in advance when being attached to a subject requiring seismic isolation, the elastic bodies can be installed very easily and accurately.

Furthermore, since the elastic bodies are arranged in two stages, upper and lower, with the connecting plate in between, the seismic isolation effect can be produced in two stages.

In addition, if mounting plates are provided on the top and bottom, they can be used to easily and quickly attach to the target subject to seismic isolation.

According to the second aspect of the present invention, since the plurality of elastic bodies are accurately positioned in advance when being attached to a subject requiring seismic isolation, it can be installed extremely accurately. Furthermore, the upper and lower mounting plates allow for easy and speedy installation on areas requiring seismic isolation.

[Brief explanation of the drawing]

1 to 4 show embodiments of the present invention. FIGS. 1 and 2 show a first embodiment. Figure 1(a) is a front view of the elastic member for seismic isolation, Figure 1(b)
is the plan view of Fig. 1 (a), Fig. 2 shows the elastic member for seismic isolation,
It is a partially cutaway schematic cross-sectional view showing a state inserted between a base of a dyed product and a concrete foundation. FIG. 3 shows a second embodiment, in which FIG. 3(a) is a front view of the elastic member for seismic isolation, and FIG. 3(b) is a plan view. FIG. 4 shows a third embodiment, in which FIG. 4(a) is a front view of the elastic member for seismic isolation, and FIG. 4(b) is a plan view. FIG. 5 shows a second embodiment of the present invention.
5(a) is a front view thereof, and FIG. 5(b) is a plan view thereof. ■, 11.21... Connecting plate, 2.12.22.32.
...Elastic body, 3.31...Number board, 4...Base, 5
... Concrete foundation, 6 ... Anchor bolt, 7
...Bolt/Nand, 8...Mounting hole, 9...Nut.

Claims (1)

[Claims] 1. An elastic member for seismic isolation, in which a plurality of elastic bodies are arranged in series on the upper and lower surfaces of a connecting plate, respectively. 2. The elastic member for seismic isolation according to claim 1, wherein the elastic body has a cylindrical shape. 3. The seismic isolation elastic member according to claim 1, wherein the elastic body is formed into a tapered cylinder whose diameter increases toward the connecting plate. 4. The elastic member for seismic isolation according to claim 1, wherein the elastic body is formed into a tapered cylinder whose diameter becomes smaller toward the connecting plate from the middle thereof. 5. The elastic member for seismic isolation according to claim 1, wherein a mounting plate is fixed to the upper end of the elastic body on the upper surface of the connecting plate and the lower end of the elastic body on the lower surface of the connecting plate, respectively. 6. An elastic member for seismic isolation in which a plurality of elastic bodies are inserted between the upper and lower mounting plates and held in a sandwiched state.