JPH10205167A - Vibration damping antiseismic device in building, vibration damping antiseismic method, and vibration damping antiseismic structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To damp and absorb shocks and vibration caused by earthquake so as to restrain a building itself from oscillating, so as to prevent the building from being damaged or collapsing. SOLUTION: One or more of spaces 4 are formed in a block body 5 made of elastic materials such as synthetic resin or rubber, and a vibration damping member 6 made of a particulate material such as sand or iron particles is filled in the spaces 4, and a concrete footing and metal fixing panels 3, 3a fixed to a foundation are secured to the upper and lower surfaces of the block body 5 so as to constitute a vibration damping antiseismic device 1. The lower fixing panel 3 is secured to the concrete footing so as to arranged and fix a plurality of vibration damping antiseismic devices 1 at predetermined positions on the concrete footing. The foundation is laid on the vibration damping antiseismic devices 1, and is secured to the upper fixing panel 3a. Thus, the vibration damping antiseismic devices 1 are interposed between the foundation and the concrete footing. With this arrangement, the oscillation caused by earthquake can be restrained through vibration damping antiseismic action caused by the block body 5 and the particulate vibration damping material 6, and then is transmitted to the building after being damped.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for preventing a building from collapse or destruction due to an earthquake.
It is related to seismic isolation devices.

[0002]

2. Description of the Related Art Conventionally, in a wooden building, as shown in FIG. 23, an upper end of an anchor bolt a protruding from the upper surface of a concrete foundation b is inserted through an insertion hole d formed through a proper position on a base c. The base c is placed directly on the concrete foundation b in such a manner as to be inserted, and a washer e and a nut n are attached to the protruding ends of the anchor bolts a and screwed to fasten the base c on the concrete foundation b. Because of the integration of the two, there is a disadvantage that the shock and vibration of the earthquake are transmitted to the frame of the wooden building as it is. It only makes heavy use of the framework to make it strong enough to withstand the impact of the earthquake, and the building itself shakes in the same way as the ground vibrations. Cannot be prevented .

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vibration control and seismic isolation device for a building which absorbs and absorbs shocks and vibrations caused by an earthquake to prevent the destruction and collapse of the building. Is what you do.

[0004]

DISCLOSURE OF THE INVENTION The present invention is based on the above-mentioned conventional technology, and in view of the problem that a wooden building having a base directly disposed on a concrete foundation cannot absorb or absorb shocks and vibrations caused by an earthquake, One or more spaces are formed in a block body made of an elastic material such as rubber, and the space is filled with a vibration damping material made of a granular material such as sand and iron particles. On both upper and lower sides of the body,
A metal fixing plate is fixed to the concrete foundation and the base, and a bolt insertion hole is formed at a protruding portion of each end of the fixing plate from the block main body to form a vibration control and seismic isolation device.

[0005] An anchor bolt of a concrete foundation is inserted into the bolt insertion hole of the lower fixing plate in the above-mentioned seismic isolation / seismic isolation device, and a washer and nut are attached to the protruding end and screwed. Then, a plurality of seismic isolation / seismic isolation devices were installed and fixed at predetermined positions on a concrete foundation, a base was laid on the seismic isolation / seismic isolation device, and a washer was attached to penetrate the base from above. The joint bolt is inserted through the bolt insertion hole of the upper fixing plate in the seismic isolation / seismic isolation device, and a washer and nut are attached to its protruding end, and the base is fixed to the base and the seismic isolation / seismic isolation device. By installing a seismic control and seismic isolation device between the concrete foundation and the base, the vibration caused by the earthquake is attenuated and transmitted to the building using the seismic control and seismic isolation action of the block body and the granular damping material. Like above Problems are those that were resolved cents.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. Reference numerals 1, 1a... Denote vibration damping / seismic isolation devices interposed between a concrete foundation B and a foundation C in a wooden building W. The seismic control and seismic isolation devices 1, 1a... Are arranged and fixed at appropriate positions on a concrete foundation B, and a base C of a wooden building W is laid and fixed thereon. On the upper surface of B, a plurality of anchor bolts A, Aa ... for fastening the seismic control / isolation devices 1, 1a ... to the concrete foundation B
Is protruding.

As shown in FIGS. 1 to 11, each of the vibration damping / isolation devices 1, 1a... Is a block 2 having a rectangular parallelepiped shape, and a concrete foundation fixed on both upper and lower surfaces of the block 2. B and the fixing plates 3 and 3a for the base C.

The block 2 has one or a plurality of spaces 4 made of an elastic material such as synthetic resin or rubber (hereinafter referred to as an elastic synthetic resin). The formed hollow block body 5 and the vibration damping material 6 which is filled in the space 4 and is made of countless granular materials such as sand and metal particles.
It consists of.

As shown in FIG. 3, the space 4 of the block body 5 is desirably formed in a multi-layered form in which a plurality of spaces are formed in the vertical direction. ing.

The block body 5 includes a main body 5a having all the spaces 4 open at one end and an integral part of the main body 5a so that all the spaces 4 can be filled with the vibration damping material 6. A lid part 5b that is fixed and closes the opening on one end side of all the space parts 4.
It consists of.

[0011] In addition, the vibration control and seismic isolation devices 1, 1a ... shown in FIG.
Are formed with a plurality of spaces 4 in the vertical and longitudinal directions of the block body 5, and are provided with the vibration control and seismic isolation devices 1, 1a,... Shown in FIGS.
Form a plurality of spaces 4 in the longitudinal direction of the block body 5, and the vibration damping and seismic isolation devices 1, 1a shown in FIG. Are formed on the side surface of the block main body 5 with the filling holes 7 of the vibration damping material 6 penetrating through the respective space portions 4. A closure plug 8 is fitted and fixed to 7.

In particular, in the case of the vibration control and seismic isolation devices 1, 1a, etc. in which a plurality of spaces 4 are formed in the longitudinal direction of the block main body 5,
As shown in FIGS. 4 to 6, a pair of inner surfaces 9, 9a facing each other in all the space portions 4 are connected to the upper inclined surfaces 10, 10a inward and downward from the opening edge, and the upper inclined surfaces 10, 10a. It comprises vertical surfaces 11, 11a extending vertically downward from the lower end, and downward inclined surfaces 12, 12a extending outward and downward from the lower ends of the vertical surfaces 11, 11a.

[0013] Alternatively, as shown in FIG.
Inward from the upper and lower sides of the plurality of inclined pieces 13, 13a ..., 14,
14a are integrally protruded, and the inclined pieces 13, 13a.
Are arranged in the longitudinal direction of the block body 5 at predetermined intervals.

The block body 5 is, as shown in FIG.
The upper member 15, the lower member 15a, and the upper and lower members 15a and 15b, as shown in FIG.
It may be a composite material composed of a middle layer member 15b disposed between 15 and 15a.

The fixing plates 3, 3a fixed to the upper and lower surfaces of the block body 2 have both ends protruding from both ends of the block body 2. , Aa ... through the upper fixing plate 3a.
Joint bolts J, which will be described later,
Ja insertion holes 17 and 17a are formed respectively.

Reference numerals 18 and 18a denote compression springs provided between the projecting portions at both ends of the upper and lower fixing plates 3 and 3a. The compression springs 18 and 18a fix the upper and lower ends to the fixing plates 3 and 3a. .

In the above embodiment, the vibration damping / isolation devices 1, 1a... Are provided with compression springs 18, 18a.
As shown in FIGS. 10 and 11, the block body 2 and the fixing plate 3,
The damping / seismic isolation device 1, 1a,...

As shown in FIGS. 12 and 13, stopper pins 22, 22 are provided on the upper surface of the projecting portion of the lower fixing plate 3.
It is desirable to protrude the stopper pins 22, 22.
The upper end of a is set so as not to abut on the upper fixed plate 3a.

As shown in FIG. 21, a water return piece 19 is formed continuously above both ends of the lower fixing plate 3 and a light shielding piece 20 is formed below both ends of the upper fixing plate 3a. May be.

It is preferable that the raw material of the block body 5 is recycled waste tires, and it is preferable that a synthetic pyrethrin-based insecticide such as a pyrethroid insecticide for controlling insects such as termites is mixed. Although not shown, it may be made of a foamed resin having countless cells.

The vibration damping material 6 is sand or metal particles.
In the case of metal particles, it is desirable to dispose of the scrap iron and other metal scraps, form them into granules, and recycle them.

The shape of the vibration damping / isolation devices 1, 1a,... In plan view is not limited to a horizontally long rectangular shape.
As shown in (a), (b) and (c), it may be L-shaped, T-shaped or cross-shaped.

The concrete foundation B on which the seismic control and seismic isolation devices 1, 1a,... Is installed has a flat shape without beams in the drawing, but is not limited to such a form. It may be solid basis.

Next, the work of mounting the seismic isolation / seismic isolation device according to the present invention will be described.
Are inserted through the insertion holes 16, 16a of the fixing plate 3 below the fixing plate 3, and nuts N, Na are screwed into the protruding end portions thereof, so that the nuts N, Na are fixed at predetermined positions on the concrete foundation B. After fixing the seismic and seismic isolation devices 1, 1a ..., the base C is laid on the seismic / seismic isolation devices 1, 1a ... and the base C
Through the joint bolts J and Ja through the fixing plate 3a above the respective vibration control and seismic isolation devices 1, 1a,.
17a, the nuts N1 and N1a are screwed into the protruding ends thereof, and the base C is fixed on the vibration control / isolation devices 1, 1a... As shown in FIGS. 15, 16, 17, and 18, The seismic control and seismic isolation devices 1, 1a, ... are installed between the concrete foundation B and the base C.

Finally, as shown in FIGS. 19 and 20, a gap H between the seismic control and seismic isolation devices 1, 1a... A panel body 21 having air permeability is installed along the outer periphery of the building so as to close Ha.

Next, the operation of the vibration control and seismic isolation device in the building according to the present invention will be described.
The upper wooden building W is mounted on the base C via the seismic control and seismic isolation device 1,
1a ... is fixed on the top. When an earthquake occurs, the vibration caused by the earthquake is attenuated and transmitted to the wooden building W by the elastic action of the seismic control and seismic isolation device 1, 1a. Decrease.

More specifically, no matter what direction the roll comes from due to the elastic restoring force of the compression springs 18 and 18a, the block 2 deformed in response to the roll automatically returns to its original shape, Since the compression springs 18 and 18a are pre-tensioned, the base C, that is, the wooden building W side is pulled by the concrete foundation B, so that the wooden building W is lifted by strong wind. To prevent

Further, since the innumerable granular materials constituting the vibration damping member 6 are independent of each other, they move while rubbing each other in accordance with the space portion 4 deformed with the deformation of the block body 5. The force acting on the block body 2 is dispersed, and the vibration is attenuated.

[0029]

In summary, the present invention relates to a concrete foundation B
And the seismic isolation / seismic isolation device 1, 1a ...
Since one or a plurality of spaces 4 are formed in a block body 5 made of synthetic resin having elasticity, and the space 4 is filled with a granular vibration damping material 6, the block body 5 and the vibration damping material are formed. Even if a load such as a building W is applied to the block body 2 made of the material 6, since the granular vibration damping material 6 is filled in the space 4, the crush deformation of the block body 2 can be suppressed. In addition, the granular vibration damping material 6 exists in the space 4, but since the block body 5 and the vibration damping material 6 are separate bodies and do not have a coupling relationship therebetween, the deformation of the space 4
By moving the vibration damping material 6 while rubbing each other,
Since the deformation force acting on the block 2 can be dispersed and absorbed, the vibration caused by the earthquake is greatly attenuated and the building W
And the building W can be prevented from being destroyed or collapsed.

Further, both ends of the fixing plates 3 and 3a fixed to the upper and lower surfaces of the block main body 5 are made to protrude from the block main body 5, and bolt insertion holes 16, 16a.
7 and 17a, the anchor bolts A, Aa on the concrete foundation B side are inserted into the bolt insertion holes 16, 16a of the lower fixing plate 3, and the bolt insertion holes 17, 17a on the upper fixing plate 3a.
Then, by inserting the joint bolts J and Ja penetrating the base C, the seismic control and seismic isolation devices 1, 1a,... Can be installed, and the installation work can be simplified.

A plurality of spaces 4 are formed in the vertical direction of the block body 5, a plurality of spaces are formed in the longitudinal direction of the block body 5, or a plurality of spaces 4 are formed in the vertical and longitudinal directions of the block body 5. Therefore, the vibration damping material 6 housed in the block main body 5 housed in the space portion 4 can be subdivided, so that the vibration damping material 6 in each space portion 4 accompanying the deformation of the block body 2 can be reduced. You can move smoothly,
In particular, in the case of the seismic isolation / seismic isolation devices 1, 1a,... Formed in the vertical direction, since the thickness of each of the space portions 4 becomes thin, vibration in each of the space portions 4 due to the deformation of the block body 2 is performed. Since the movement of the damping material 6 is performed smoothly, the deformation force acting on the block body 2 can be further dispersed and absorbed, so that the vibration caused by the earthquake can be further attenuated and transmitted to the building W.

Also, a pair of opposed inner side surfaces 9 and 9a in the space 4 are connected to upper inclined surfaces 10 and 10 inward and downward from the upper end.
a, a vertical surface 11, 11a extending vertically downward from the lower end of the upper inclined surface 10, 10a, and a downward inclined surface 12, 12a extending outward and downward from the lower end of the vertical surface 11, 11a. Since the angle between the upper surface 4 and the upper and lower inclined surfaces 10, 10a, 12, 12a is acute, the space portion 4 can be deformed even if the external force acting on the block body 2 is small, so that the vibration can be reduced to some extent. On the other hand, seismic control and seismic isolation can function.

A plurality of inclined pieces are arranged on the upper and lower surfaces of the space 4 at predetermined intervals in the longitudinal direction of the block body 5 and are inclined toward one end of the block body 5.
, 14, 14a... Are formed, so that the inclined pieces 13, 13a.
By expanding and contracting the mutual interval of the adjacent inclined pieces 13,
Since the vibration damping material 6 between 13a…, 14, 14a… is moved and the deformation force acting on the block body 2 can be dispersed and absorbed, the vibration caused by the earthquake is greatly attenuated and transmitted to the building W. Can be done.

Since the compression springs 18 and 18a are disposed between the projecting portions of the upper and lower fixed plates 3 and 3a, the compression springs 18 and 18a are similarly deformed even when a force is applied from any direction. Because it automatically returns to its original shape by elastic restoring force, it can attenuate vibrations in response to vibrations from any direction, especially it can be equipped with a vibration damping function. A function of dispersing and absorbing the deformation force of the material 6 can be provided, and a more efficient damping function can be provided in the vibration control and seismic isolation devices 1, 1a,. Wooden building W
Since the side is pulled to the concrete foundation B, it is possible to prevent the wooden building W from rising due to the strong wind, and it is also possible to suppress the swing of the wooden building W under the strong wind.

Are provided on the upper surface of the projecting portion of the lower fixing plate 3, and the upper end portions of the stopper pins 22, 22a are separated from the upper fixing plate 3a. So, if an earthquake that exceeds the design seismic intensity occurs,
In the unlikely event that the compression springs 18 and 18a fall off or the block body 2 ruptures and breaks, the wooden building W
Even if the load acts on the block body 2 and the upper fixing plate 3a goes down, it stops by contacting the stopper pins 22, 22a... You can do it.

The concrete foundation B and the base C are connected by the vibration control and seismic isolation devices 1, 1a..., And the pests, especially termites, crawl on the surface of the vibration control and seismic isolation devices 1, 1a. If it does not reach the base C, the insects will not reach the base C, but since the insect repellent is mixed in the block body 5, it is possible to prevent the pests from climbing from the concrete foundation B side to the base C.

The seismic control and seismic isolation devices 1, 1a... Are interposed between the concrete foundation B and the base C, and the seismic control and seismic isolation devices 1, 1a are provided.
... and the concrete foundation B are screwed into the anchor bolts A, Aa ... and the anchor bolts A, Aa ... inserted in the bolt insertion holes 16, 16a ... of the lower fixing plate 3 in the vibration control and seismic isolation devices 1, 1a ... Fix with nuts N, Na ...
And the base C are inserted through the base C and into the bolt insertion holes 17, 17a of the upper fixing plate 3a of the seismic control / isolation device 1, 1a. Bolt J,
Ja and the joint bolts J, the nuts N1 and N1a screwed to the Ja are fixed. Therefore, since the concrete foundation B and the base C are not directly connected, the deformation of the block body 2 between the fixing plates 3 and 3a is not hindered. The vibration control and seismic isolation functions of the block body 2 can be made to function efficiently, and the vibration damping efficiency due to the earthquake can be improved.

Further, in the case of a general foundation, the beam portion is raised and formed so as to form a gap between the base C and the ground surface, but since the concrete foundation B is formed in a flat shape, By laying the base C on the seismic control and seismic isolation devices 1, 1a... Installed on the concrete base B, a gap is formed between the base C and the concrete base B. The labor of constructing the beam part can be omitted, and the construction work of the concrete foundation B can be simplified.

Further, the concrete foundation B is mounted on the anchor bolts A,
Aa ... is installed and constructed, and the anchor bolts A, Aa ... are inserted into the bolt insertion holes 16, 16a ... of the lower fixing plate 3 of the seismic control / isolation device 1, 1a ... Seismic device 1,
1a ... is installed on concrete foundation B, and nuts N, Na ... are screwed into anchor bolts A, Aa ..., and seismic isolation / isolation devices 1, 1a ... are fixed on concrete foundation B. Seismic control and seismic isolation device 1, 1a installed on the base C
, The joint bolts J, Ja penetrating the base C are inserted into the bolt insertion holes 17, 17a of the upper fixed plate 3a of the vibration damping / isolation devices 1, 1a,. The nuts N1 and N1a are screwed into J and Ja to fix the base C to the seismic control and seismic isolation devices 1, 1a. The anchor bolts A, Aa... And the joint bolts J, J are inserted into the bolt insertion holes 16, 16a..., 17, 17a of the fixing plates 3, 3a.
a, and nuts N, Na..., N1, N1a are simply screwed into the anchor bolts A, Aa... and the joint bolts J, Ja, so that the vibration control and seismic isolation devices 1, 1a. It can be installed, and its practical effect is extremely large.

[Brief description of the drawings]

FIG. 1 is a plan view of a vibration control and seismic isolation device according to the present invention.

FIG. 2 is a front view of FIG.

FIG. 3 is a central cross-sectional view of FIG.

FIG. 4 is a sectional view showing another embodiment of FIG. 3;

Fig. 5: Vibration control with block composed of upper and lower members
It is a center cross-sectional view of a seismic isolation device.

FIG. 6 is an exploded perspective view of the seismic isolation / seismic isolation device in which a block body is constituted by upper, middle, and lower layer members.

FIG. 7 is a sectional view showing another embodiment of FIG. 3;

FIG. 8 is a sectional view showing another embodiment of FIG. 3;

FIG. 9 is a sectional view showing another embodiment of FIG. 3;

FIG. 10 is a plan view of a vibration damping / seismic isolation device without a compression spring.

FIG. 11 is a front view of FIG. 10;

FIG. 12 is a front view of the seismic control and seismic isolation device provided with a stopper pin.

FIG. 13 is a front view of a vibration damping / seismic isolation device without a compression spring provided with a stopper pin.

FIG. 14 is a main part front view showing an installed state of the vibration damping / seismic isolation device.

FIG. 15 is an enlarged view of a main part of FIG. 14;

FIG. 16 is a sectional view taken along line XX of FIG.

FIG. 17 is an enlarged view of a main part of FIG. 14;

18 is a sectional view taken along line YY of FIG.

FIG. 19 is a front view of a wooden building provided with a vibration control / seismic isolation device.

FIG. 20 is an enlarged sectional view taken along the line ZZ of FIG. 19;

FIG. 21 is a partial cross-sectional side view showing an installed state of a vibration control / seismic isolation device in which water return pieces and light shielding pieces are provided on upper and lower fixed plates.

FIG. 22 is a schematic plan view of a vibration control / seismic isolation device having another three patterns.

FIG. 23 is an enlarged front view of a main part showing a laid state of a conventional base.

[Explanation of symbols]

 1, 1a ... Seismic control and seismic isolation device 3, 3a Fixing plate 4 Space 5 Block body 6 Vibration damping material 9, 9a Inner surface 10, 10a Upper inclined surface 11, 11a Vertical surface 12, 12a Lower inclined surface 13, 13a ... Inclined pieces 14, 14a ... Inclined pieces 16, 16a ... Bolt insertion holes 17, 17a Bolt insertion holes 18, 18a Compression springs A, Aa ... Anchor bolts B Concrete foundation C Base J, Ja Joint bolts N, Na ... Nuts N1, N1a nut

Claims (11)

[Claims] A seismic control / seismic isolation device interposed between a concrete foundation and a base, wherein one or more spaces are formed in an elastic synthetic resin block main body,
The space portion is filled with a granular vibration damping material, and both ends of a fixing plate fixed on the upper and lower surfaces of the block main body are protruded from the block main body, and a bolt insertion hole is formed in the protruding portion. And seismic isolation devices for buildings that do not work. 2. A seismic isolation / seismic isolation device for a building according to claim 1, wherein a plurality of spaces are formed in the vertical direction of the block body. 3. The seismic isolation / seismic isolation device for a building according to claim 1, wherein a plurality of spaces are formed in a longitudinal direction of the block body. 4. A pair of inner surfaces facing each other in the space, wherein an upper inclined surface inwardly downward from the upper end, a vertical surface vertically downward from the lower end of the upper inclined surface, and an outer surface from the lower end of the vertical surface. 4. The seismic control and seismic isolation device for a building according to claim 3, wherein the seismic control device is constituted by a downwardly inclined surface. 5. A plurality of inclined pieces which are arranged in parallel at predetermined intervals in the longitudinal direction of the block main body and are inclined to one end side of the block main body on both upper and lower surfaces of the space portion. 3 Seismic control and seismic isolation devices for buildings. 6. The vibration control and seismic isolation device for a building according to claim 1, wherein a plurality of space portions are formed in the vertical and longitudinal directions of the block body. 7. The vibration damping and seismic isolation device for a building according to claim 1, wherein compression springs are arranged between projecting portions of the upper and lower fixed plates. 8. A stopper pin 22, 22a... Protrudes from an upper surface of a projecting portion of the lower fixing plate 3, and an upper end of the stopper pin 22, 22a. Claims 1, 2, 3, 4,
Seismic control and seismic isolation devices for buildings 5, 6, or 7. 9. The block body, wherein an insect repellent is mixed in the block main body.
And seismic isolation devices for buildings in Japan. 10. The method of claim 1, 2, 3, 4, 5, 6, 7,
8 or 9 seismic isolation / seismic isolation device is interposed between the concrete foundation and the base, and the seismic isolation / seismic isolation device and the concrete foundation are inserted into the bolt holes of the lower fixed plate of the seismic isolation / seismic isolation device The seismic control and seismic isolation device and the base are penetrated through the base and inserted into the bolt insertion holes of the upper fixing plate in the seismic control and seismic isolator. A seismic control and seismic isolation structure for a building, characterized by being fixed by a joint bolt and a nut screwed onto the joint bolt. 11. The seismic control and seismic isolation structure for a building according to claim 10, wherein the concrete foundation is formed flat. 11. The concrete foundation according to claim 1,2,
Anchor bolts are installed at predetermined locations at the installation locations of the seismic control and seismic isolation devices of 3, 4, 5, 6, 7, 8 or 9, and the bolt holes for lower fixing plates in the seismic isolation and seismic isolation devices are constructed. Insert the anchor bolt into the inside, install the seismic isolation / seismic isolation device on the concrete foundation, screw the nut on the anchor bolt, fix the seismic isolation / seismic isolation device on the concrete foundation, and then After laying the base on the installed seismic isolation / seismic isolation device, insert the joint bolt penetrating the base into the bolt insertion hole of the upper fixed plate in the seismic isolation / seismic isolation device, and joint bolt Screw a nut on the
Seismic isolation and seismic isolation construction method for buildings, characterized in that the base is fixed to the seismic isolation device.