JP2007186890A - Reinforcing fitting connection device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reinforcing fitting connection device which is available for use in combination with an existing reinforcing fitting to drastically increase the earthquake resistance of a structural skeleton, usable for connecting between building structural members at locations separate from each other, simple in structure, and low in cost. <P>SOLUTION: The reinforcing fitting connecting device 1 is formed of: two connection plates 53, 55 which each have mounting holes 57 formed in one end thereof, for connecting the reinforcing fitting 3 thereto, and a slot 65 extending in a connecting direction, formed in the other end; an intermediate plate 59 interposed between the two connection plates 53, 55, and having a slot 69 formed at the center thereof; viscoelastic bodies 27 arranged between the connection plates 53, 55 and the intermediate plate 59, respectively; a bolt 61 inserted into the slots 65 formed in the respective two connection plates 53, 55, and the slot 69 formed in the intermediate plate 59, and functioning as a connection shaft connecting between the two connection plates 53, 55 in a manner relatively movable in the connection direction, and a nut 63. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a connecting device for reinforcing metal fittings connected to a reinforcing metal fitting attached to a joint portion such as a column and a beam, which is a structural material for construction.

When building a building such as a wooden house, a foundation or a pillar or beam is assembled to form a structural frame.
For example, in Patent Document 1 provided with a vibration control action, a reinforcing hardware is provided at a joint portion between two orthogonal construction structural materials, for example, a joint portion between two construction structural materials such as columns and beams. Is attached.

The reinforcing bracket includes a first connecting portion connected to one of the orthogonal building structural materials, a second connecting portion connected to the other of the orthogonal building structural materials, and the first connecting portion and the second connecting portion. And a spring member provided between the two portions. The spring member is bent and deformed to absorb and dampen vibrations caused by earthquakes and the like to weaken the impact on the structural frame.
Each of these reinforcing metal fittings is independently provided at the joint portion of the structural material for building, and the vibration applied to the joint portion is absorbed by using a single reinforcing metal fitting for each joint portion.

  However, even if the reinforcing bracket is constructed as firmly as possible, there is a limit to the magnitude of vibration energy that can be withstood by a single reinforcing bracket. Moreover, the distance between the structural members for construction connected by the reinforcing metal fitting is limited to a very close position.

Japanese Patent Laid-Open No. 2005-200882

  The present invention was made in light of the existence of the problems of the above-mentioned background art, and by using it in combination with existing reinforcing metal fittings, the seismic resistance of the structural frame is greatly improved, and the building is located at a separated position. An object of the present invention is to provide a connecting device for reinforcing metal fittings that can also be used for connection between structural members.

  In order to solve the above-mentioned problem, the invention described in claim 1 is a connecting device for reinforcing metal fittings connected to a reinforcing metal fitting attached to a joint portion of a structural material for building. A plurality of connecting members having attachment portions for connecting to the reinforcing metal fittings and having elongated holes formed at the other end extending in the connecting direction, and interposed between the plurality of connecting members to form a through hole. An intermediate member having a connecting portion for connecting to the structural material, a viscoelastic body provided between the connecting member and the intermediate member, a long hole of the plurality of connecting members, and a through hole of the intermediate member And a connecting shaft body for connecting a plurality of connecting members in a relatively movable state.

  According to a second aspect of the present invention, in the connecting device for a reinforcing metal fitting according to the first aspect, the through hole of the intermediate member is a long hole extending in the same direction as the long hole of the connecting member. It is a connecting device.

  According to a third aspect of the present invention, in the connecting device for reinforcing metal fittings according to the first or second aspect, the plurality of connecting members are operable in a direction in which the elongated hole extends and a rotational direction about the connecting shaft body. This is a connecting device for reinforcing metal fittings.

  According to a fourth aspect of the present invention, there is provided the reinforcing bracket connecting device according to any one of the first to third aspects, wherein each of the plurality of connecting members is formed with an accommodating recess for accommodating a viscoelastic body. This is a connecting device for reinforcing metal fittings.

  According to a fifth aspect of the present invention, there is provided the reinforcing bracket connecting apparatus according to any one of the first to fourth aspects, wherein the reinforcing bracket is a damping bracket that absorbs vibrations during an earthquake or the like. Connecting device.

According to the connecting device for reinforcing metal fittings of the present invention, it becomes possible to connect a plurality of reinforcing metal fittings, so that the vibration absorption and damping action of the reinforcing metal fittings is enhanced and the earthquake resistance of the structural frame is greatly improved. In addition, the connecting device for the reinforcing metal fittings can be expanded and contracted in the connecting direction within the range of the long holes by the elongated holes and the viscoelastic body formed in the connecting member for the reinforcing metal fittings. The property is further improved.
In addition, if a long connecting device for reinforcing metal fittings is used, it is possible to connect the reinforcing metal fittings attached at spaced positions.

Hereinafter, the best mode for carrying out the coupling device for reinforcing metal fittings of the present invention will be described.
First, the reinforcing metal fitting 3 to which the reinforcing metal coupler connecting apparatus 1 of the present invention is applied will be described.
As shown in the drawing, the reinforcing metal fitting 3 is attached to the joint portion A of the structural material for building such as the column 5 and the beam 7 and absorbs and attenuates the vibration caused by an earthquake or the like to improve the earthquake resistance of the structural housing 9.
The reinforcing metal fitting 3 is connected to the first connecting portion 11 and the second connecting portion 11 via the first connecting portion 11 attached to the front surface side, the second connecting portion 13 attached to the rear surface side, the female screw block 15 and the female screw block 17. The spring member 19 provided between the portion 13 and the mounting plate 21 attached to the front surface of the first connecting portion 11 are overlapped with the mounting plate 21, the first connecting portion 11 and the second connecting portion 13. Bolts 23 and nuts 25 that are fixed together in a closed state, a viscoelastic body 27 interposed between the mounting plate 21 and the first connecting portion 11 and between the second connecting portion 13 and the first connecting portion 11. And have.

The first connecting portion 11 includes a steel plate main portion 29 and a reinforcing plate 31 that is welded in a state of being overlapped with a part of the main portion 29.
A lower end portion of the main portion 29 is bent at a right angle to form a bent piece 33. A reinforcing plate 31 is superposed on the bent piece 33, and the reinforcing plate 31 is bent at a right angle so as to follow the shape of the lower end portion of the main portion 29.

Four inclined holes 35 are formed in the bent piece 33 and the reinforcing plate 31, and these inclined holes 35 are disposed in the vicinity of the main portion 29 and the bent portion of the reinforcing plate 31.
The four inclined holes 35 are inclined toward the bent portion of the main portion 29 (see FIG. 4).
Further, four continuous holes 39 are formed in the bent piece 33 and the reinforcing plate 31. These holes 39 are provided on the bent piece 33 and the front end side (front side in FIG. 3) of the reinforcing plate 31 with respect to the inclined holes 35, and are arranged adjacent to the four inclined holes 35.
A female screw block 15 in which three female screws are formed is fixedly provided on the back surface of the main portion 29 (the rear surface in FIG. 3).

The second connecting portion 13 includes a steel plate main portion 41 and a reinforcing plate 43 welded in a state of being overlapped with a part of the main portion 41.
A right end portion of the main portion 41 is bent at a right angle to form a bent piece 45. A reinforcing plate 43 is superposed on the bent piece 45, and the reinforcing plate 43 is bent at a right angle so as to follow the shape of the right end portion of the main portion 41.

Four inclined holes 35 are formed in the bent piece 45 and the reinforcing plate 43, and these inclined holes 35 are disposed in the vicinity of the bent portions of the main portion 41 and the reinforcing plate 43.
The four inclined holes 35 are inclined toward the bent portion of the main portion 41 (see FIG. 5).
Also, four continuous holes 39 are formed in the bent piece 45 and the reinforcing plate 43. These holes 39 are provided on the bent piece 45 and the front end side (front side in FIG. 3) of the reinforcing plate 43 with respect to the inclined holes 35, and are arranged adjacent to the four inclined holes 35, respectively. A female screw block 17 in which three female screws are formed is fixed to the back surface of the main portion 41 (the rear surface in FIG. 3). The main portion 41 is formed with an opening 47 large enough to receive the female screw block 15 of the first connecting portion 11.

  The first connecting portion 11 and the second connecting portion 13 are overlapped, and the female screw block 15 of the first connecting portion 11 protrudes through the opening 47 to the back side of the second connecting portion 13. Three columnar spring members 19 are provided between the female screw block 15 of the first connecting portion 11 and the female screw block 17 of the second connecting portion 13. Male screws are formed at both ends of the spring member 19. The male screws are engaged with the female screws of the female screw block 15 and the female screw block 17, so that the spring member 19 is connected to the female screw block 15 and the female screw block. 17 is attached.

  A mounting plate 21 is superimposed on the front surface of the main portion 29 of the first connecting portion 11, and three bolts 23 are inserted into the mounting plate 21, the main portion 29, and the main portion 41 of the second connecting portion 13. . The front end of the bolt 23 protrudes from the back surface of the main portion 41, and a nut 25 is attached to the protruding portion to connect the first connecting portion 11, the second connecting portion 13, and the mounting plate 21. Further, a viscoelastic body 27 formed of a synthetic resin having adhesiveness and elastic force is interposed between the main portion 29 and the main portion 41 and between the main portion 29 and the mounting plate 21.

The first connecting portion 11 is extended with a connecting flap 49 formed by projecting a part of the first connecting portion 11 outward. The connecting flap 49 is a rectangular flat plate member, and two mounting holes 51 are provided in a penetrating manner with a certain pitch in the vertical direction. The mounting holes 51 are set to have substantially the same diameter, the same number, and the same pitch as the mounting holes 57 as mounting portions formed at one end of the connecting plates 53 and 55 of the reinforcing bracket connecting device 1.
As shown in FIGS. 1 and 2, the two reinforcing metal fittings 3 are inserted into the holes 39 or the inclined holes 35, and straddle the joint portion between the pillar 5 and the beam 7 by the wood screw 37 screwed into the pillar 5 or the beam 7. It is attached.

The reinforcing bracket connecting device 1 is used for connecting the reinforcing brackets 3 described above.
The reinforcing bracket connecting device 1 includes two connecting plates 53 and 55 as connecting members, an intermediate plate 59 as an intermediate member interposed between the two connecting plates 53 and 55, and the connecting plate 53 and the intermediate plate. 59, an example of a connecting shaft that connects the viscoelastic body 27 provided between the connecting plate 55 and the intermediate plate 59, and the two connecting plates 53 and 55 and the intermediate plate 59 in an overlapped state. And a nut 63 that is a fastening means of the bolt 61.

Each of the two connecting plates is a rectangular flat plate member made of a steel plate and has a long side, and includes a connecting plate 53 provided on the front side in FIG. 6 and a connecting plate 55 provided on the rear side. Two attachment holes 57 for connecting to the reinforcing metal fitting 3 are provided at the outer ends of the connection plates 53 and 55 at a predetermined pitch in the vertical direction.
Bolts 23 are inserted into the mounting holes 57 and the mounting holes 51 formed in the connection flaps 49 on the reinforcing metal fitting 3 side, and the connection plates 53, 55 and the reinforcing metal fitting 3 are connected.

Long holes 65 extending in the connecting direction (the left-right direction in FIG. 2) are formed in the inner ends of the connecting plates 53 and 55, respectively. The connection plates 53 and 55 are freely movable in the direction in which the elongated holes 65 extend and in the rotation direction around the bolt 23.
An accommodation recess 67 formed by press molding is formed at the center of each of the two connecting plates 53 and 55. The housing recess 67 is a recess for housing the viscoelastic body 27, and is composed of a shallow recess having a rectangular shape in front view or rear view.

The intermediate plate 59 is formed by bending one end of a steel plate at a right angle, and includes a flat plate-like main portion 60 and a flat plate-like connecting piece 62 formed integrally with the main portion 60. Three holes 64 are formed in the connecting piece 62. A long hole 69 as a through hole is formed at the center of the main portion 60, and a bolt 61 is inserted into the long hole 65 and the long hole 69 of the two connecting plates 53, 55, The connecting plates 53 and 55 and the intermediate plate 59 are connected so as to be relatively movable in the connecting direction and to be rotatable about the bolt 61.
The connecting piece 62 of the intermediate plate 59 is brought into contact with the beam 7, the wood screw 37 is inserted into the hole 64, and the wood screw 37 is screwed into the beam 7. As a result, the intermediate plate 59 is fixed to the beam 7.

Next, the operation | movement aspect of the coupling device 1 for reinforcement metal fittings concerning embodiment of this invention is demonstrated.
When vibration is transmitted to the structural frame 9 due to an earthquake or the like, the column 5 and the beam 7 are vibrated, and the first connecting portion 11 in the reinforcing bracket 3 coupled to the beam 7 is vibrated in the same direction as the beam 7. The second connecting portion 13 in the reinforcing metal fitting 3 connected to is vibrated in the same direction as the column 5.

Here, since the spring member 19 and the viscoelastic body 27 are provided between the first connecting portion 11 and the second connecting portion 13 as described above, the bending deformation of the spring member 19 and the shape of the viscoelastic body 27 are provided. The vibration energy is absorbed and attenuated by the deformation.
Further, part of the vibration energy transmitted to the first connecting portion 11 is transmitted to the connecting plates 53 and 55 via the connecting flap 49, and the elongated holes 65 formed in the connecting plates 53 and 55 form the elongated holes 65. The two connecting plates 53 and 55 operate in the connecting direction or rotate around the bolt 61 within the range of the length. During this operation, the viscoelastic body 27 absorbs and attenuates the vibration, thereby exhibiting an extremely high vibration control effect that cannot be obtained by the reinforcing metal fitting 3 alone.

As described above, the illustrated embodiment has been described in detail as the best mode for carrying out the present invention, but the specific configuration of the present invention is not limited to the illustrated embodiment. Design changes and the like within a range not departing from the gist of the invention are also included in the present invention.
For example, in the above-described embodiment, a so-called damping metal fitting is shown as the reinforcing metal fitting, but the present invention is not limited to this and can be applied to a reinforcing metal fitting of a type that does not have a vibration control function.
In the above embodiment, the connecting plates 53 and 55 and the intermediate plate 59 are plate-shaped members. However, the present invention may of course have other shapes such as a prismatic shape or a round bar shape, which are limited thereto. It is.

In the embodiment, the connection flap 49 is formed with respect to the first connection part 11 of the reinforcing metal fitting 3 to connect the first connection part 11 and the connection plates 53, 55. It is also possible to connect the second connecting part 13 and the connecting plates 53, 55 by forming a connecting flap 49 with respect to the part 13.
It is also possible to form the connection flaps 49 in both the first connection part 11 and the second connection part 13 and connect the connection plates 53 and 55 to both of them. It is also possible to use the connecting device 1 for reinforcing metal fittings so that three or more reinforcing metal fittings 3 can be connected simultaneously.

  For example, the present invention is applicable to the manufacture and use field of a reinforcing bracket connecting device connected to a reinforcing bracket that is attached to a joint between a column and a beam and absorbs, disperses, and attenuates vibration caused by an earthquake or the like. Have.

It is a perspective view which shows a part of structure housing to which the coupling apparatus for reinforcement metal fittings concerning embodiment of this invention is applied. It is a front view which shows a part of structure housing to which the coupling apparatus for reinforcement metal fittings concerning embodiment of this invention is applied. It is a perspective view which shows the reinforcement metal fitting which is the application object of the connection apparatus for reinforcement metal fittings concerning embodiment of this invention. They are the AA sectional view (a) in Drawing 3, and the partial enlarged views (b) and (c) which show the reinforcing metal fitting which is the application object of the connecting device for reinforcing metal fittings concerning an embodiment of the invention. They are the BB sectional drawing (a) in Drawing 3, and the partial enlarged views (b) and (c) which show the reinforcement metal fitting which is the application object of the connecting device for reinforcement metal fittings concerning an embodiment of the invention. It is a disassembled perspective view which shows the connection apparatus for reinforcement metal fittings concerning embodiment of this invention. It is CC sectional drawing in FIG. 2 which shows the coupling apparatus for reinforcement metal fittings concerning embodiment of this invention. It is a top view which shows the connection apparatus for reinforcement metal fittings concerning embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Connection apparatus for reinforcement metal fittings 3 Reinforcement metal fittings 5 Column 7 Beam 9 Structure housing 11 1st connection part 13 2nd connection part 15 Female thread block 17 Female thread block 19 Spring member 21 Mounting plate 23 Bolt 25 Nut 27 Viscoelastic body 29 Main Part 31 Reinforcing plate 33 Bending piece 35 Inclined hole 37 Wood screw 39 Hole 41 Main part 43 Reinforcing plate 45 Bending piece 47 Opening 49 Connecting flap 51 Mounting hole 53 Connecting plate 55 Connecting plate 57 Mounting hole 59 Intermediate plate 60 Main part 62 Connecting Piece 64 hole 61 bolt 63 nut 65 long hole 67 accommodation recess 69 long hole A joint part

Claims (5)

  In the reinforcing bracket connecting device to be connected to the reinforcing bracket attached to the joint portion of the structural material for building, the reinforcing bracket connecting device has an attaching portion for connecting with the reinforcing bracket at one end and at the other end. A plurality of connecting members formed with elongated holes extending in the connecting direction; an intermediate member interposed between the plurality of connecting members; a through hole is formed and has a connecting portion for connecting to a building structural material; A viscoelastic body provided between the connecting member and the intermediate member, and inserted into the elongated holes of the plurality of connecting members and the through holes of the intermediate member, and the plurality of connecting members are relatively movable A connecting device for a reinforcing metal fitting, comprising: a connecting shaft body connected at   The connecting device for reinforcing metal fittings according to claim 1, wherein the through hole of the intermediate member is a long hole extending in the same direction as the long hole of the connecting member.   3. The reinforcing bracket connecting device according to claim 1 or 2, wherein the plurality of connecting members are movable in a direction in which the elongated hole extends and a rotational direction about the connecting shaft body. apparatus.   4. The reinforcing metal coupling device according to claim 1, wherein an accommodation recess for accommodating a viscoelastic body is formed in each of the plurality of coupling members. Connecting device. 5. The connecting device for reinforcing metal fittings according to claim 1, wherein the reinforcing metal fitting is a vibration control metal fitting that absorbs vibration during an earthquake or the like.

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