JPH108767A - Vibration-isolation coupling structure of sill and foundation of building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce transmission to a building of generated quakes by composing a sliding joining member of an upper joining member, a lower joining member and a lubricant and constituting an anchor bolt for restraining displacement of a bolt section, an anchor section, a first joint section specifying the tolerance of a clearance between the bolt section and the anchor section, and a second joint section elastically checking the clearance so as to beforehand relax an impulse at the time of the specified action of a maximum clearance by the tying and stopping of the first joint section. SOLUTION: A displaceable state is kept without particularly displacing an upper joining member 40 and a lower joining member 41 in a sliding joining member 4 at the normal time. When quakes are generated by an earthquake, etc., an anchor bolt 5 for restraining displacement receives a check while being inhibited by elastic restoring force by a spring for a second joint section 10, and is separated and moved within a range, which does not exceed a maximum clearance by a ring section for a first joint section 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seismic isolation structure for connecting a foundation of a building such as a residential house to its foundation, and more particularly to transmitting vibration generated by an earthquake or the like to the building. The present invention relates to a seismic isolation connection structure that can be prevented from being caused.

[0002]

2. Description of the Related Art In general, buildings such as residential houses are integrated by firmly fixing a foundation (base pillar, etc.) of the building with anchor bolts or the like on a foundation (concrete foundation) constructed on the ground. It employs a coupling structure.

In such a connection structure, when vibrations due to an earthquake or the like are generated, most of the vibrations are transmitted to the building as it is, which makes the building uncomfortable or, in some cases, adversely affects the building (such as damage). There was a problem of having.

In order to solve such a problem, for example, Japanese Patent Publication No. 7-58012 discloses an L-shaped anchor bolt having a spring portion formed from a middle portion to an upper portion thereof. A technique has been proposed in which a conical relief hole is provided in a base through which a spring portion is inserted, and then the base and the base are connected by the anchor bolt.

[0005]

According to the above-mentioned prior art, even if the anchor bolt swings with the vibration of the foundation, the vibration is absorbed or cushioned by the action of the spring portion.
Vibration transmission to the base is supposed to be prevented. However, in this prior art, the detailed function of the spring portion and the degree of its effective ability are not specified, so that when a relatively large vibration such as an earthquake occurs,
There is a high possibility that all of the vibration cannot be absorbed by the spring portion, and eventually, the vibration may be transmitted to the base side.

Conventionally, no simple and effective technology for general houses has been proposed for preventing vibration generated by an earthquake or the like from transmitting from the foundation to the base.

The present invention has been made in view of such circumstances, and it is an object of the present invention to make it possible to transmit a vibration generated by an earthquake or the like from a foundation to a base, and further to a building as much as possible. It is an object of the present invention to provide a new connection structure between a building base and a foundation which can be reduced.

[0008]

According to the seismic isolation connection structure of the present invention, when connecting the foundation of a building to a foundation having a plurality of ventilation openings formed at intervals, a portion not forming a ventilation opening of the foundation is provided. And, between the base part facing the part and the base, a slide connecting member for connecting the base so that it can be displaced in the horizontal direction with respect to the foundation is arranged, and the part forming the ventilation hole of the base and the part A seismic isolation coupling structure that includes a displacement stopping anchor bolt for stopping the displacement within a predetermined range when the base is displaced with respect to the foundation, between the opposing base portions, The upper joint member attached to the lower surface side of the base,
A lower joining member attached to the upper surface of the foundation so as to face the upper joining member, wherein the opposing surfaces of the upper joining member and the lower joining member are provided with lubricity, and the displacement restraint is provided. The anchor bolts for the bolts are fixed to the base, the anchors fixed to the foundation, and the allowable range of the separation distance between the bolts and the anchors, which are attached together between the bolts and the anchors. A first joint part defined as a tether and a second joint part that elastically restrains the separation distance so as to alleviate the impact in advance when the maximum separation distance is defined by the tethering of the first joint part. It is composed.

The above-mentioned slide joining member is not particularly limited as long as the base can be joined to the foundation so as to be displaceable in the horizontal direction. For example, the upper joining member and the lower joining member are provided. Both are made of an elastic member and a plate material arranged on the facing surface side, and are formed by integrally covering the side portions of the upper joining member and the lower joining member, which are provided with lubricity, with the cover member. desirable.
In this case, the presence of the elastic member is effective in obtaining smoothness of the joint between the upper surface of the foundation and the lower surface of the base.

[0010] The above-described anchor bolt for displacement suppression is not particularly limited as long as it can be stopped so that the displacement is within a predetermined range when the base is displaced with respect to the foundation. For example, the following configuration is possible. That is, the first joint portion is composed of two bars each having a ring portion formed on one end side, and when the ring portions are moved in a direction to separate from each other, the ring portions are connected so that the end portions abut, and the first joint portion is connected. The other end of the bar is configured to be attached to a bolt or an anchor, respectively, and the second joint is composed of two wires having a ring at one end and a spring at the other end. The end portions of the spring portions may be connected to the ends of the ring portions when the ring portions move in the direction in which the ring portions move away from each other, and the ends of the spring portions may be attached to the bolt portions or the anchor portions, respectively.

In the seismic isolation connection structure of the present invention, the base portion facing the ventilation hole of the foundation is fixed in such a form as to surround the periphery of the base portion, and the bolt portion of the displacement stopping anchor bolt is provided. A base protection member comprising a fixed main body and two displacement restraint plates erected on the lower surface side of the main body so as to face the side surface of the ventilation port at a predetermined interval is attached. Things. In this case, the anchor bolt can be firmly fixed directly to the base without applying an excessive load. Further, even if the base is largely displaced in the side direction of the ventilation port, the displacement can be stopped within a predetermined range by the displacement stop plate abutting on the side surface of the ventilation port.

In the seismic isolation connection structure provided with the base protection member, a displacement control plate is provided on the indoor side of the main body of the base protection member at a predetermined interval from the indoor side surface of the foundation. Is preferred. In this case, even if the base is largely displaced from the indoor side to the outdoor direction, the displacement can be stopped within a predetermined range by the displacement stop plate abutting on the indoor side surface portion of the foundation.

[0013] Similarly, installation with bolts for attaching a high-frequency vibration generator for applying micro-vibration to a slide joint member when restoring a position shift due to displacement of a base is provided on a part of the indoor or outdoor side surface of the foundation. It is preferable to bury the substrate for use. In this case, since the slide joining member is easily slid by the high frequency vibration, the displacement of the base can be smoothly repaired.

Similarly, an instrument mounting portion for attaching one end of an interval adjusting instrument used for repairing a displacement caused by displacement of the base is provided on the displacement restraining plate of the base protecting member, and the other end is provided. Is preferably buried in the side of the ventilation opening of the foundation. In this case, the jig for contracting the interval can be easily installed, and the displacement can be smoothly repaired by the jig.

[0015]

Embodiments of the present invention will be described below.

FIG. 1 shows an embodiment of the seismic isolation connection structure of the present invention. In this seismic isolation connection structure, basically, a slide member 4 is arranged between a portion of the foundation 1 where the ventilation opening 2 is not formed and a portion of the base 3 facing the portion,
An anchor bolt 5 for preventing displacement is provided between a portion of the foundation 1 forming the ventilation port 2 and a portion of the base opposed to the portion.
And further, a base protection member 6 is attached to a base portion facing the ventilation port 2. Basic 1 of these
Refers to those constructed on the ground with concrete or the like.

As shown in FIGS. 1 and 2a, the slide member 4 is attached to an upper joint member 40 attached to the lower surface of the base 3 and attached to the upper surface of the foundation 1 so as to face the upper joint member 40. The main part is constituted by a lower joint member 41 to be formed and a lubricant (lubricant) 42 filled between surfaces of the upper joint member 40 and the lower joint member 41 facing each other. More specifically, the upper joint member 40 and the lower joint member 41 are both disposed on an elastic member 43 capable of maintaining elasticity for a long time even under a large load, and on a surface side where the two joint members 40 and 41 face each other. The upper joint member 40 and the lower joint member 41 which are constituted by plates 44 and 45 made of a metal plate or the like, and which are filled with the lubricant 42 and faced with each other, have a cover member 4 made of rubber or the like.
6 integrally. An adhesive layer 49 made of a double-sided tape, an adhesive, or the like used when the elastic member 43 is fixed to the foundation 1 or the base 3 is provided on the side opposite to the plate mounting surface. Further, the outer peripheral portion between the surfaces filled with the lubricant 42 is subjected to a sealing process 47 using a sealing material or the like so that the lubricant 42 does not leak.

The upper surface of the upper plate 45a of the plate 45 of the lower joining member 41 forming one of the surfaces between the surfaces filled with the lubricant 42 may be a smooth surface, but the lubricant 42 is easily retained. If necessary, a predetermined groove 48 may be formed as shown in FIG. 2B. The lubricant 42 includes the upper joint member 40 and the lower joint member 4.
As long as the material 1 slides smoothly in use, a material or the like that is commercially available as a conventionally known lubricant or the like can be used, and the material or the like is not particularly limited. In this example, as a means for providing lubricity to the opposing surfaces of the upper joint member 40 and the lower joint member 41, a method of filling the lubricant 42 between the opposing surfaces is exemplified. The present invention is not limited to this. For example, the plates 44 and 45 may be made of a material impregnated with a lubricant, or may be made of a material having excellent lubricity. May be used. In addition, as the above-mentioned lubricity imparting means, it is also possible to employ a mechanism having a structure in which a bearing or the like is interposed between the upper and lower members so that the two members can slide relative to each other.

The slide member 4 configured as above is
As shown in FIG. 3, the upper binder 40 and the lower binder 41 can relatively move horizontally with the layer of the lubricant 42 as a boundary. Therefore, by installing the slide member 4 between the foundation 1 and the base 3, the base 3
In a state where it is freely displaced in the horizontal direction with respect to.

On the other hand, as shown in FIGS. 1 and 4 to 5, the displacement stopping anchor bolt 5 includes a bolt portion 7 fixed to the base 3 side, an anchor portion 8 fixed to the foundation 1 side, and The first joint 9 and the second joint 10 attached together between the bolt 7 and the anchor 8 constitute a main part thereof. In the anchor bolt 5, a cover for covering the first joint 9 and the second joint 10 may be provided between the bolt 7 and the anchor 8 as necessary.

The bolt portion 7 is formed of a rod having a length penetrating at least in the thickness direction of the base 3.
A screw portion 7 for tightening the nut is provided on the upper end side.
a is formed so as to protrude from the upper surface of the base 2,
On its lower end side, a flange portion 7b abutting on the lower surface of the base 3
Are formed, and the first and second joint portions 9, 1
A connection screw hole 7c in which the No. 0 connecting member 11 is screwed is opened.

Further, the anchor portion 8 includes at least the foundation 1
The whole is made of an L-shaped rod so as to be firmly fixed inside, and a flange portion 8a is provided on the upper end side.
Are formed, and the first and second joint portions 9, 1
A connection screw hole 8b is formed in which the No. 0 coupling joint 12 is screwed.

Further, the first joint portion 9 has a function of defining the allowable range (L _{1 to} L ₃ ) of the separation distance H between the bolt portion 7 and the anchor portion 8 so as to be fixed. In the example, the one having the following configuration is used. That is, two rods 15 and 16 having ring portions 13 and 14 formed on one end side are used.
14 are connected to each other in a chain shape while facing each other, and the other ends of the rods 15 and 16 are connected to the connecting member 1 described above.
It is configured to be detachably attached to the bolt part 7 or the anchor part 8 via 1 and 12, respectively.

As shown in FIG. 6A, each of the ring portions 13 and 14 has a long hole shape with the longest inner diameter r. 13a, 14a) abuts on the end of the ring portion on the other side and does not move further in the direction X (FIG. 6c). In this example, the separation distance H between the bolt portion 7 (connection member 11) and the anchor portion 8 (connection joint 12)
Is the initial value “L ₁ ”, the ring portions 13 and 14 are in a state where they can move in the separation direction X by the maximum dimension D. That is, as shown in FIG. 6C, the bolt portion 7 and the anchor portion 8 are defined so that they can be freely separated at the maximum until the separation distance H becomes “L ₃ = L ₁ + D”, and that the bolt portion 7 and the anchor portion 8 are not further separated. ing. Note that the separation direction X here mainly means an obliquely upward direction rather than the vertical direction. The dimension D is appropriately set. For example, when the base 3 is a prism having a side of 120 mm, the dimension D is set to about 60 to 90 mm.

The second joint portion 10 elastically restrains the separation distance so as to reduce the impact in advance when the maximum separation distance (L ₁ + D) due to the fastening of the first joint portion 9 is regulated. In this example, the one configured as follows is used. That is, the ring 1
The two wire members 22 and 23 having the spring portions 20 and 21 formed on the other ends of the wire members 7 and 18 are used.
8 are connected in a chain shape in a state where they face each other, and the terminal ends of the spring portions 20 and 21 are connected to the connecting member 11,
12 to be detachably attached to the bolt portion 7 or the anchor portion 8, respectively.

As shown in FIG. 6A, each of the ring portions 17 and 18 has a long hole shape having the longest inner diameter s. 17a, 18a) abut against the end of the ring portion on the other side so as not to move further in the separating direction X (FIG. 6b). In this example, the bolt 7 (the connecting member 1)
When the separation distance H between 1) and the anchor portion 8 (the coupling joint 12) is the initial value “L ₁ ”, the ring portions 17 and 18 can move in the separation direction X by a maximum dimension E (<D). ing. In other words, the two ring portions allow the bolt portion 7 and the anchor portion 8 to be freely separated and moved until the separation distance H becomes “L ₂ = L ₁ + E”, and that the bolt portion 7 and the anchor portion 8 are not further separated. It is. This is because when the ring portions 13, 14 of the first joint portion 9 move by a shorter dimension E before moving by the dimension D, the separation distance H
Becomes maximum (L ₃ = L ₁ + D) one step before. No tension is applied to the spring portions 20 and 21 while the ring portions 17 and 18 move apart by the dimension E.

After the ring portions 17 and 18 have moved apart by the dimension E, the spring portions 20 and 2 continue.
1 is stretched (FIGS. 6b and 6c).
That is, the spring parts 20, 21 are connected to the ring parts 17, 1
8 begins to be stretched from the point in time at which they are separated by the dimension E (G
₁ ) The first joint 9 is stretched until it reaches the maximum separation distance D by the ring (G ₂ > G ₁ ). This allows
Bolt portion 7 and the anchor portion 9, 6b, the distance as shown in _{c L 2 (= L 1 +} E) up to a distance L ₃ from (=
During the distance movement (DE) until the distance reaches L ₁ + D), the elastic parts of the spring portions 20 and 21 act to separate relatively slowly. Although the maximum extension G ₂ dimensions E and spring portion of the above is appropriately set, for example, longitudinal 20mm dimension E if base 3 is prism of one side 120 mm, maximum elongation G ₂ is around 90mm Can be set to

As a result, as shown in FIG. 5, the first and second joints 9 and 10 of the displacement-preventing anchor bolt 5 are connected to the connecting member 11 at the upper end and to the connecting member 12 at the lower end. The connecting member 11 is fixed to the screw portion 7c of the bolt portion 7 and the connecting member 12 is fixed to the anchor portion 8
The screw holes 8 are screwed respectively to assemble them. In this example, the connecting member 1
The threads 1 and 12 are threaded in opposite directions, so that when the entire first joint 9 and second joint 10 are turned in a certain direction, the connecting members 11 and 12 are bolted to the bolt 7. And the anchor portion 8 can be screwed at the same time, and when turned in the opposite direction, the connecting members 11, 1
2 can be simultaneously removed from the bolt portion 7 and the anchor portion 8. Moreover, when the connecting members 11 and 12 are screwed to the bolt portion 7 and the anchor portion 8, they are finally firmly fixed by the fastening nut 19.

As shown in FIG. 7, the base protection member 6 is made of two main bodies 60 and 61 such as steel plates which are divided into two parts so as to surround the base part facing the ventilation port 2 from the indoor side and the outdoor side, respectively. It consists of. The main bodies 60 and 61 are attached to the base 3 by bolting 63 at predetermined locations on the upper surface, the lower surface, and the side surface with the base 3 interposed therebetween. In this example, mounting holes for inserting the bolt portions 7 of the anchor bolts 5 are formed on the upper surface side and the lower surface side of the main body portions 60 and 61, respectively.
Wedge-shaped projections 64 are provided on the inner surface sides of the bases 0 and 61 so as to bite into the inside of the surface of the base 3 during mounting.

As shown in FIGS. 1, 7, and 8, the lower surfaces of the main bodies 60 and 61 are opposed to the side surface 2a of the ventilation port 2 at a predetermined interval P. The two displacement stopping plates 65 are provided facing downward (the upper surface of the ventilation port 2). On the surface side of the displacement stop plate 65, a cushioning member 66 for reducing the shock generated at the time of collision with the side surface portion 2a of the ventilation port is provided. Here, the interval P
May be set as appropriate, for example, if the ventilation opening 2 is
In the case of a size of mm × 400 mm, it can be set to about 60 mm.

Further, as shown in FIGS. 8 and 9
As shown in the figure, two displacement restraining plates 67 are provided on the indoor side of the main body 60 at a predetermined interval Q with respect to the indoor side surface 1a of the foundation 1. Displacement stop plate 67
Is provided via an arm 68 projecting from the indoor side of the main body 60, and has a cushioning material 6 on its surface side for cushioning an impact at the time of collision with the basic indoor side surface 1c.
9 is attached.

The seismic isolation coupling structure having such a configuration is as follows.
For example, it is constructed in the following procedure.

First, when the foundation 1 is constructed, the anchor portions 8 of the displacement-preventing anchor bolts 5 are buried at the positions where the ventilation holes 2 are formed. After the foundation 1 is completed, the slide joint member 4 is fixed to the upper surface of the foundation without the ventilation port 2 via the adhesive layer 49 with the lower joint member 41 facing downward. On the other hand, a base protection member 6 is attached to a portion of the base 3 facing the ventilation port 2, and a bolt portion 7 of the displacement-preventing anchor bolt 5 is temporarily fixed with a nut 7b. Next, the base 3 is placed on the foundation 1 while being positioned. At this time, the upper joining member 40 of the slide joining member 4 is fixed to the lower surface of the base 3. Finally, the first joint portion 9 and the second joint portion 10 of the displacement stopping anchor bolt 5 are attached to the bolt portion 7 and the anchor portion 8 via a connecting member, and the bolt portion 7 of the temporarily fixed anchor bolt 5 is permanently fixed. I do. It can be completed by the above procedure. It is needless to say that the construction procedure of the connection structure is not limited to the above procedure example.

Next, the functional operation of the seismic isolation coupling structure will be described.

Basically, the base 1 and the base 3 are maintained in a state where they can be displaced in the horizontal direction by the slide joint member 4 and when the displacement is stopped by a predetermined amount or more by the displacement stopping anchor bolts 5. The displacement is restrained.

More specifically, in normal times,
Foundation 1 and base 3 are in a fixed positional relationship as they were at the beginning of construction. That is, the slide joint member 4 only keeps the upper and lower joint members 40 and 41 in a displaceable state without being particularly displaced, and the displacement-preventing anchor bolt 5 is, as shown in FIG. Foundation 1 and Foundation 3
Is merely kept at H = L ₁ .

On the other hand, when a vibration occurs due to an earthquake or the like, the foundation 1 first vibrates. The vibration transmitted to the foundation 1 is transmitted to the base 3 as it is in a conventional general connection structure, but in this seismic isolation connection structure, the foundation 1 and the base 3 can be displaced in the horizontal direction by the slide connection member 4. In this state, the foundation 1 only vibrates (displaces) below the base 3, and the base 3 (building) on the foundation 1 is located before the occurrence of the vibration due to the law of inertia. And stays at nothing. As a result, the quake is cut off at the foundation 1 and is not transmitted from the foundation 1 to the base 3 side.

At this time, the displacement stopping anchor bolt 5
The first joint portion 9 and the second joint portion 10 correspond to the relative displacement (displacement) between the foundation 1 and the base 3 due to the vibration.
Moves away from each other, but when the amount of displacement is likely to be larger than the maximum separation distance D in the ring portion of the first joint portion 9, the following function is performed.

That is, the displacement between the foundation 1 and the base 3 is first stopped by the ring portion of the second joint portion 10 so as to be within the maximum separation distance E, and then the elasticity of the spring portion of the same second joint portion 10 is reduced. While being restrained by the restoring force, the ring portion of the first joint portion 9 is finally stopped to keep it within the maximum separation distance D. As described above, the displacement-stopping anchor bolt 5 is configured so that the displacement of the foundation 1 and the base 3 is finally within a range not exceeding the maximum separation distance D of the ring portion of the first joint portion 9. And when receiving the final stop by the ring part of this first joint part 9,
Originally, the bolt part 7 and the anchor part 8 and eventually the base 3 receive an instantaneous impact due to the restraining action of the ring part. Outbreaks are mitigated.

In addition, in this seismic isolation connection structure, when the foundation 1 and the base 3 are greatly displaced in the longitudinal direction of the foundation 1 (the ventilation opening 2), the displacement stopping plate 65 is moved to the side of the ventilation opening. The contact with 2a prevents further displacement. Further, when the foundation 1 and the base 3 are largely displaced to the indoor side or the outdoor side, further displacement is prevented by the displacement stop plate 67 abutting against the indoor side surface portion 1a of the foundation. . in this way,
Even when the foundation 1 and the base 3 are largely displaced, the displacement is within the predetermined range by the stopping action of the displacement stopping plates 65 and 67, so that the base 3 comes off from the base 1. Falling is prevented.

In the seismic isolation connection structure, when the base 1 and the base 3 are relatively displaced by the vibration (see FIG. 12), it is necessary to repair the displacement. In addition, when a displacement occurs, the first joint portion 9 and the second joint portion 10 of the displacement stopping anchor bolt 5 are removed (in principle, from the bolt portion 7 and the anchor portion 8) (see FIGS. 10 and 11). After repair, replace with a new one.

In order to repair such a displacement, the present seismic isolation connection structure employs, for example, a configuration as shown in FIG. That is, the installation substrate 30 with bolts for mounting the high-frequency vibration generator is buried in advance in a part of the indoor or outdoor side surface of the foundation 1.

In this case, in order to repair the displacement of the base 3, a predetermined high-frequency vibration generator is attached to the installation board 30 with bolts, and a hydraulic jack 31 is installed in the ventilation port 2. The hydraulic jack 31 may be installed, for example, so as to be in contact with the displacement stopping plate 65 of the base protection member 6. Further, it is preferable that the hydraulic jacks 31 be installed in all the ventilation holes 2. Then, the base 3 is pressed by the hydraulic jack 31 in the direction of restoring the original position while operating the high-frequency vibration generator,
The base 3 is restored to a state that matches the foundation 1. On this occasion,
By transmitting the high-frequency micro-vibration generated from the high-frequency vibration generator to the slide joint member 4 via the foundation 1,
Since the upper joint member 40 and the lower joint member 41 of the slide joint member 4 are more easily slid, the repair work can be smoothly performed.

In addition, as illustrated in FIG. 11, a device mounting portion 33 for mounting one end of a spacing adjusting device 32 (for example, a turnbuckle) used for repairing a displacement is provided with a displacement stopping plate of the base protecting member 6. 65, and an instrument mounting portion 34 for mounting the other end is embedded in the side surface portion 2a of the ventilation hole 2 of the foundation. The interval adjusting device 32 includes:
A screw hole 35 penetrating into the instrument main body is provided, and arms 36 and 37 are respectively inserted from both ends thereof by screw type. By turning the instrument main body in one direction, the arms 36 and 37 are inserted into the screw hole 35. Arm 3
The distance between the ends attached to the 6, 37 ends is gradually reduced. The instrument mounting portion 33 provided on the displacement stopping plate 65 may have, for example, an opening that can be mounted through the arms 36 and 37. In addition, the tool mounting portion 34 to be buried in the side surface portion 2a of the ventilation port 2 may have a metal fitting 38 for connecting the distal end portion of the arm 37 embedded therein at the time of foundation construction.

In this case, the distal end of the arm 36 of the interval adjusting device 32 is provided on the displacement stopping plate 65 by the device mounting portion 33.
, And the distal end of the arm 37 is fixed to the instrument mounting portion 34 provided on the side surface portion 2a with the instrument mounting portion 33 provided on the displacement stopping plate 65 being inserted therethrough. Then, by rotating the main body of the gap adjusting device 32 in a fixed direction, the gap between the tool mounting portion 33 and the tool mounting portion 34 is reduced, and as a result, the base 3 is restored to a position that matches the foundation 1.

[0046]

As described above, according to the seismic isolation connection structure of the present invention, with a simple configuration, it is possible to transmit the vibration generated by an earthquake or the like from the foundation to the base side, and further to the building. It can be reduced as much as possible. In addition, the construction of this connection structure can be easily performed because it does not require any complicated and sophisticated work steps as compared with the conventional construction method. Further, even if the base is displaced from the foundation due to the vibration, the displacement can be easily repaired.

[Brief description of the drawings]

FIG. 1 is a schematic front view showing an embodiment of a seismic isolation connection structure according to the present invention.

FIG. 2 shows an example of a configuration of a slide joining member.
(A) is a sectional view, and (b) is a partial plan view showing an example of the plate surface.

FIG. 3 is an explanatory view showing a state where a slide joining member is slid.

FIG. 4 is a cross-sectional view showing an arrangement state of a displacement stopping anchor bolt.

FIG. 5 is an exploded explanatory view of a displacement stopping anchor bolt.

FIG. 6 is an explanatory view showing a configuration and an operation process of a first joint portion and a second joint portion of the displacement stopping anchor bolt.

FIG. 7 shows an example of a configuration of a base protection member.
(A) is a sectional view, (b) is a top view, and (c) is a bottom view.

FIG. 8 is a front view showing each displacement stopping plate provided on the base protection member.

FIG. 9 is a side view showing a displacement stopping plate provided on an indoor side surface portion of the base protection member.

FIG. 10 is a schematic front view showing an example of a seismic isolation connection structure provided with a displacement correcting facility.

FIG. 11 is a schematic front view showing another example of the seismic isolation connection structure provided with the displacement correcting equipment.

FIG. 12 is a plan view showing an example of a state in which the base and the base are displaced.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... foundation, 2 ... ventilation opening, 3 ... base, 4 ... slide joining member, 5 ... displacement prevention anchor bolt, 6 ... base protection member, 7 ... bolt part, 8 ... anchor part, 9 ... first joint part,
DESCRIPTION OF SYMBOLS 10 ... Second joint part, 13, 14, 17, 18 ... Ring part, 20, 21 ... Spring part, 30 ... Installation base with a bolt, 32 ... Interval adjustment instrument, 33, 34 ... Instrument mounting part, 40 ... Upper joining member, 41 ... Lower joining member, 42
... lubricating agent, 43 ... elastic member, 44, 45 ... plate, 6
0, 61: Main body, 65, 67: Displacement stop plate.

Claims (7)

[Claims] In joining a foundation of a building and a foundation having a plurality of ventilation openings formed at intervals, a portion of the foundation that does not form a ventilation opening and a base portion facing the portion are provided with: A slide connecting member for joining the base to the foundation so that it can be displaced in the horizontal direction is provided, and the base is connected to the base between the part forming the ventilation hole of the foundation and the base part facing the part. A seismic isolation connection structure in which an anchor bolt for preventing displacement is provided to stop the displacement within a predetermined range when it is displaced, and the slide joint member is at least on the lower surface side of the base. An upper joint member to be attached, and a lower joint member attached to the upper surface side of the foundation so as to face the upper joint member, wherein lubricity is imparted to opposing surfaces of the upper joint member and the lower joint member. There, and the displacement restraining anchor bolt, and the bolt portion fixed to the base side, an anchor portion fixed to the base side,
Attached together between the bolt and anchor,
The first joint part which is defined so as to tether the allowable range of the separation distance between the bolt part and the anchor part, and the separation distance such that the impact at the time of the specified action of the maximum separation distance by the tethering of the first joint part is mitigated in advance. A seismic isolation connection between the foundation of the building and the foundation, characterized by comprising a second joint part for elastically restraining the base. 2. The slide joining member according to claim 1, wherein each of the upper joining member and the lower joining member is made of an elastic member and a plate-shaped member arranged on the facing surface side. The seismic isolation connection structure according to claim 1, wherein the side portions of the member and the lower joining member are integrally covered by a cover member. 3. The first joint portion of the displacement-preventing anchor bolt comprises two rods having a ring portion at one end,
When the ring parts are moved in a direction to separate from each other, the ends of the ring parts are connected so as to abut each other, and the other end of the bar is attached to a bolt part or an anchor part, respectively, and The second joint is
A ring portion is formed at one end and a spring portion is formed at the other end 2
When the two ring members are moved in the direction in which they are separated from each other, the ends of the ring members are connected so as to abut each other, and the end of the spring is attached to the bolt or the anchor, respectively. The seismic isolation coupling structure according to claim 1. 4. A main body portion fixed to a base portion facing the ventilation opening of the foundation so as to surround the periphery of the base portion, and a bolt portion of a displacement stopping anchor bolt is fixed, and the main body. 4. A base protection member comprising two displacement restraining plates which are erected so as to face the side surface of the ventilation port at a predetermined interval on the lower surface side of the portion. The seismic isolation coupling structure described. 5. The seismic isolation connection structure according to claim 4, wherein a displacement stopping plate facing the indoor side surface of the foundation at a predetermined interval is provided on the indoor side of the main body of the base protection member. 6. A part of the indoor or outdoor side of the foundation,
5. A mounting board with bolts for mounting a high-frequency vibration generator for applying micro-vibration to a slide joint member when repairing a displacement caused by displacement of a base.
The seismic isolation coupling structure described. 7. An apparatus mounting portion for mounting one end of an interval adjusting tool used for repairing a displacement caused by displacement of a base is provided on a displacement restraining plate of a base protecting member, and the other end is mounted. The seismic isolation connection structure according to claim 4, wherein an instrument mounting portion for the purpose is buried in a side portion of the ventilation hole of the foundation.