JP2002213100A - Vibration control wall structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vibration control wall structure enabling a damper to be positioned between corners by use of a simple arrangement for cost reduction, while suppressing noises during oscillation. SOLUTION: The vibration control wall structure 1 has an axially extensible attenuation device 8 positioned like a brace in a wall space 7 defined by the right and left columns 3 and 4 and the upper and lower horizontal members 5 and 6 of a building 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a damping wall structure in which a cylinder-rod type damping device, that is, a so-called cylinder-rod type damper is mounted on a wall of a building or the like.

[0002]

A technique has been proposed in which a damping device is embedded in a wall of a building or the like so that the wall has a damping structure, and thus the entire building has a damping structure.

A cylinder having a cylinder and a rod penetrating the cylinder as one of such damping devices.
The rod-type damping device is configured such that one end side of the cylinder is formed into a column or a horizontal member at one corner of a wall space defined by left and right columns and upper and lower horizontal members, and one end side of a rod protruding from the cylinder is formed as a wall space. Is used by being attached to a pillar or a horizontal member at the other corner diagonally to one corner.

By the way, such a damping device needs to expand and contract and swing with respect to a pillar or a horizontal member at each corner when the building is shaken due to an earthquake or the like and the wall space is deformed. One end side of the cylinder and one end side of the rod are swingably attached to the corner column or horizontal member via a glasses joint or the like, but using such a glasses joint or the like causes an increase in price, In addition, there is a possibility that abnormal noise due to slippage is generated in the swing.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned points, and has as its object to reduce the cost by disposing the damping device between the corners with a simple structure, and to reduce the cost. An object of the present invention is to provide a vibration-damping wall structure free from abnormal noise.

[0006]

According to a first aspect of the present invention, there is provided a damping wall structure, which is provided in a wall space defined by right and left pillars of a building and upper and lower horizontal members, and is stretchable in the axial direction arranged in a strut manner. A flexible damping device, wherein the damping device includes a rod and a cylinder through which the rod is axially movably movable, and one end of the rod protruding from the cylinder is At one corner of the wall space, it is immovably fixed to at least one of the pillar and the horizontal member with a joining means, and one end of the cylinder is located diagonally to one corner of the wall space. At the other corner, it is fixedly attached to at least one of the pillar and the horizontal member by another joining means, and is damped by deformation of the wall space due to the relative horizontal movement of the upper horizontal member relative to the lower horizontal member. The device is Which is adapted to be seen.

According to the vibration damping wall structure of the first aspect, the damping device can be bent. When the building is shaken by an earthquake or the like and the wall space is deformed, the damping device itself is bent. As a result of being able to expand and contract in the axial direction following the deformation of the wall space, a desired damping effect can be exhibited, and one end of the rod and one end of the cylinder are joined to diagonally opposite corners of the wall space. Because of the immovable fixation by means, slip here does not occur,
In addition, there is no possibility that abnormal noise due to slippage is generated in the swing, and the cost can be reduced because it is not necessary to use a glasses joint or the like.

In the present invention, at least one of the rod and the one end of the cylinder may be fixedly fixed by welding (in this case, a welded portion, which is a welded portion, serves as a joining means). ) Is preferably fixed to the corresponding corner of the wall space by at least one of a one-sided and a two-sided frictional connection by a corresponding joining means as in the vibration damping wall structure according to the second aspect of the present invention. I have.

The immovable fixation by the one-sided or two-sided frictional joint does not exclude the immovable fixation by the welded portion. However, the work of installing the damping device in the wall space can be simplified, and the working time can be greatly reduced. In addition, there is a possibility that the damping device can be easily replaced, and furthermore, a stronger fixing can be achieved by using it together with the immovable fixing by the welded portion.

In the vibration damping wall structure according to the third aspect of the present invention, in the vibration damping wall structure according to the first or second aspect, at least one of the two joining means is provided at a corresponding one end of the cylinder and the rod. A fixed mounting plate member, another mounting plate member fixed to at least one of the pillar and the horizontal member at a corresponding corner of the wall space, and a bolt for fastening the two mounted mounting plate members together. I have it.

According to the vibration damping wall structure of the third aspect, the two mounting plate members are fastened together by bolts, so that the one-sided frictional bonding of the two mounting plate members can be obtained firmly, and the immobilization by the bonding means is achieved. Sticking can be effectively achieved at low cost.

In the vibration damping wall structure according to a fourth aspect of the present invention, in the vibration damping wall structure according to the first or second aspect, at least one of the two joining means is provided at a corresponding one end of the cylinder and the rod. A fixed mounting plate member, another mounting plate member fixed to at least one of the pillar and the horizontal member at a corresponding corner of the wall space, and a pair of paired members sandwiching the two mounting plate members butted against each other at the end surfaces. It has a holding plate, and bolts that fasten both mounting plate members and a pair of holding plates together.

According to the vibration damping wall structure of the fourth aspect, the two mounting plate members are jointly fastened by the bolts via the pair of holding plates, so that the two mounting plate members and the pair of holding plates are The surface friction joining can be obtained firmly, and the immobilization by the joining means can be more effectively achieved at low cost.

In the vibration damping wall structure according to a fifth aspect of the present invention, in the vibration damping wall structure according to the fourth aspect, the pair of holding plates are twisted at an intermediate portion thereof.

According to the vibration damping wall structure of the fifth aspect, when the building is shaken greatly and the wall space is largely deformed, large deformation of the damping device is avoided by bending deformation at the twisted portion of the holding plate. Thus, the function of the damping device can be maintained without any problem.

In the present invention, the damping device only needs to be a flexible device having at least a rod and a cylinder. Preferably, the damping device is provided in a cylinder as in the sixth embodiment. A piston fixed to the rod and having a through hole, and a viscous fluid disposed in the cylinder are provided, and the viscous fluid passes through the through hole based on the axial movement of the piston relative to the cylinder. A damping device that is configured to generate a damping force by flow, a rod piston that is fixed to the rod by forming a gap between the cylinder and the cylinder, such as a damping wall structure according to a seventh aspect. And a viscous fluid disposed in the cylinder, and through a gap between the cylinder and the piston based on the axial relative movement of the piston with respect to the cylinder. Like a damping device that generates a damping force by the flow of a viscous fluid or a damping wall structure according to an eighth aspect, a bulging portion provided on a rod or a cylinder in a cylinder and a bulging portion disposed in the cylinder. A preferred example is a damping device that includes lead and generates a damping force by the flow of lead based on the axial movement of the bulging portion with respect to the cylinder or the rod.

Such a damping device is relatively long even if both end portions thereof are immovably fixed by joining means, so that it can cope with a large deformation of the wall space with a little bending,
Therefore, even in a large earthquake, the function of the damping device can be maintained without any problem.

A building to which the damping wall structure of the present invention is applied
It may be a new building or an existing building, including business or office buildings including public and private sectors, apartment houses including detached houses, and detached houses.

Next, the present invention and its embodiments will be described in more detail based on preferred examples shown in the drawings. The present invention is not limited to these examples.

[0020]

1 to 3, a damping wall structure 1 according to the present embodiment is provided with a brace in a wall space 7 defined by left and right columns 3 and 4 and upper and lower horizontal members 5 and 6 of a building 2. FIG. An axially expandable and contractable damping device 8 is provided.

The building 2 is a high-rise building in this example,
In addition to the wall space 7 on the predetermined floor, if necessary, the wall space on the same floor adjacent to the wall space 7 on the predetermined floor and the wall spaces 11 and 12 on the upper floor and lower floor than the predetermined floor are also provided. Although not shown, the damping device is similarly arranged in a brace shape. Further, in the illustrated example, one damping device 8 is arranged in the wall space 7, but two or more damping devices 8 may be arranged.

The damping device 8 comprises a rod 21 and a rod 21
, A piston 24 fixed to the rod 21 in the cylinder 22 and having a through hole 23, and a viscous fluid 25 such as a silicon fluid disposed in the cylinder 22. Rod 21
The damping force is generated by the flow of the viscous fluid 25 through the through hole 23 based on the movement of the piston 24 relative to the cylinder 22 in the direction A (axial direction) through the through hole 23.

A connecting member 32 is attached to one end 31 of the rod 21 protruding from the cylinder 22. The connecting member 32 includes a cylindrical member 33 fixed to the one end 31 by a pin, a screw, or the like, and a cylindrical member 33. 33 has a lid 34 fixed to one end surface thereof.

A connecting member 36 is attached to one end 35 of the cylinder 22.
And a lid 38 fixed to one end surface of the cylindrical member 37.

One end 31 of the rod 21 is connected to the connecting member 3.
2 and the joining means 41 are fixedly attached to the lower horizontal member 6 at the corners 42 of the wall space 7.

The joining means 41 is fixed to the lid 34 by welding or the like, and is fixed to the lid 34 so as to be fixed to the one end 31 via the lid 34 and the cylindrical member 33; The lower horizontal member 6 at the corner 42 of the space 7
Mounting plate member 46 fixed to the end face 4 by welding or the like;
Mounting plate members 45 butted against each other at 7 and 48
, And a pair of holding plates 49 and 50, and a plurality of high-strength bolts 51 that fasten the mounting plate member 45, the mounting plate member 46, and the pair of holding plates 49 and 50 together.

The one end 35 side of the cylinder 22 is
At the corner 61 located diagonally to the corner 42, the upper horizontal member 5 is fixedly attached to the upper horizontal member 5 with the connecting member 36 and the joining means 62.

The joining means 62 is, like the joining means 41,
The mounting plate 65 is fixed to the lid 38 by welding or the like, and is fixed to the one end 35 via the lid 38 and the cylindrical member 37 by being fixed to the lid 38. A mounting plate member 66 fixed to the horizontal member 5 by welding or the like, and a pair of holding plates 6 for holding the mounting plate members 65 and 66 butted against each other at end surfaces 67 and 68.
9 and 70, a plurality of high-strength bolts 7 for fastening both mounting plate members 65 and 66 and a pair of holding plates 69 and 70 together.
1 is provided.

In the above-described damping wall structure 1, the building 2 shakes due to an earthquake or the like, and the upper horizontal member 5 relatively vibrates in the H direction (horizontal direction) with respect to the lower horizontal member 6, thereby deforming the wall space 7. In this case, the damping device 8 expands and contracts in the A direction, and in this expansion and contraction, the flow of the viscous fluid 25 through the through hole 23 based on the movement of the piston 24 via the rod 21 relative to the cylinder 22 in the A direction. Creates a damping force, thus
The horizontal vibration of the upper horizontal member 5 with respect to the lower horizontal member 6 in the H direction is attenuated to reduce the shaking of the building 2 due to an earthquake or the like and to attenuate the vibration early.

In the damping wall structure 1, the long damping device 8 can be bent when the wall space 7 is deformed. In other words, the long damping device 8 is bent in the wall space 7 to deform the wall space. 7, the one end 31 side of the rod 21 and the one end 35 side of the cylinder 22 are diagonally opposed to the corners 42 and 6 in the wall space 7.
1 can be fixedly fixed by the joining means 41 and 62 so that no slippage occurs here,
In addition, there is no possibility that abnormal noise due to slippage is generated in the swing, and since there is no need to use a glasses joint or the like, the cost can be reduced.

According to the damping wall structure 1, the rod 21
On one end 31 side, both mounting plate members 45 and 46 are jointly fastened by high-strength bolts 51 via a pair of holding plates 49 and 50, and on one end 35 side of the cylinder 22, both mounting plate members 65 and 66 are mounted. Are jointly fastened by the high-strength bolts 71 via the pair of holding plates 69 and 70, so that a two-sided frictional joint can be firmly obtained, and the immovable fixation by such a two-sided frictional joint can be more effectively performed at low cost. Can be achieved, the work of installing the damping device 8 in the wall space 7 can be simplified, the working time can be greatly reduced, and the damping device 8 can be easily replaced. By using together with the immobilized fixation by the part, more firm fixation can be achieved.

The above-mentioned damping wall structure 1 employs the damping device 8 which causes the viscous fluid 25 to flow through the through-holes 23 to thereby generate a damping force. Or together with this, the cylindrical inner peripheral surface 9 of the cylinder 22
A piston 24 having an outer diameter such that an annular gap is formed between the piston 24 and the cylinder 2 is fixed to the rod 21 based on the movement of the piston 24 with respect to the cylinder 22 in the direction A.
2 through the annular gap between the cylindrical inner peripheral surface 91 and the cylindrical outer peripheral surface 92 of the piston 24.
A damping device that is configured to generate a damping force due to the flow of may be used.
As shown in FIG.
The damping wall structure 1 may be configured in the same manner as described above by using the damping device 83 having the bulging portion 81 provided integrally with the lead member 82 and the lead 82 disposed in the cylinder 22. The damping device 83 is connected to the cylinder 22 of the bulging portion 81 via the rod 21.
The damping force is generated by the flow of the lead 82 based on the relative movement of the lead 82 in the direction A.

As shown in FIG. 4, a pair of holding plates 4
9 and 50 and 69 and 70 may be twisted at their intermediate portions 85 and 86, such intermediate portions 85 and 86
By using the holding plates 49 and 50 and 69 and 70 twisted at the time, when the building 2 shakes greatly and the wall space 7 is greatly deformed, the holding plates 49 and 50 and 69 and 7 are used.
The damping device 8 or 8 by bending deformation at the twisted part of 0
3 can be avoided, and the function of the damping device 8 or 83 can be maintained without any problem.

In the vibration damping wall structure 1, the one end 31 of the rod 21 and the one end 35 of the cylinder 22 are connected to the corners 42 and 61 of the wall space 7 by the joining means 41 and 62 for performing two-surface friction welding. The mounting plate member 45 and the mounting plate member 46 are superimposed on the one end 31 side of the rod 21 without using the holding plates 49 and 50 and 69 and 70, but the mounting plate members 46 45 and 46 are fastened together with bolts, preferably high-strength bolts 51, and on the one end 35 side of the cylinder 22, the mounting plate member 65 and the mounting plate member 66 are similarly overlapped. 65 and 66 are fastened together by bolts, preferably high-strength bolts 71, and one end of the rod 21 is attached to the corners 42 and 61 of the wall space 7 by joining means for performing one-side frictional joining. One end 3 of the 1-side and cylinder 22
The fifth side may be fixed.

[0035]

According to the present invention, it is possible to provide a damping wall structure in which the damping device can be arranged between the corners with a simple structure, the cost can be reduced, and no noise is generated in the swing. it can.

[Brief description of the drawings]

FIG. 1 is a front view of an example of a preferred embodiment according to the present invention.

FIG. 2 is an enlarged plan view of a joining means on one end side of the rod of the example shown in FIG.

FIG. 3 is an enlarged plan view of a joining means on one end side of the cylinder of the example shown in FIG. 1;

FIG. 4 is a front view of another example of the preferred embodiment according to the present invention.

[Explanation of symbols]

 Reference Signs List 1 damping wall structure 2 building 3 left column 4 right column 5 upper horizontal member 6 lower horizontal member 7 wall space 8 damping device 21 rod 22 cylinder 25 viscous fluid

────────────────────────────────────────────────── ─── of the front page continued (51) Int.Cl. ⁷ identification mark FI theme Court Bu (reference) F16F 15/023 F16F 15/023 a F-term (reference) 2E002 EB13 FA02 FA09 FB08 FB15 FB17 GA02 GA05 GA14 HA02 HA04 HB02 HB05 JA01 JA02 JB02 JB05 LA03 LB03 LC02 LC05 MA12 2E125 AA04 AA14 AA33 AB01 AC14 AC15 AG03 AG04 AG12 AG32 AG57 BB19 BB22 BB35 BB37 BC09 BD01 BE08 BF04 CA05 CA14 CA90 EA25 3J048 AA05 AB01 EB04 BB01 BA03 EA03

Claims (8)

[Claims] 1. A damping wall structure comprising a wall space defined by left and right columns and upper and lower horizontal members of a building, which is provided with an axially expandable and contractible damping device arranged in a strut manner, wherein the damping device is , A rod, and a cylinder through which the rod penetrates movably in the axial direction. One end of the rod protruding from the cylinder has at least one of a pillar and a horizontal member at one corner of the wall space. One end of the cylinder is fixedly attached to one side by a joining means, and one end of the cylinder is connected to at least one of the pillar and the horizontal member at the other corner located diagonally to one corner in the wall space. The damping device can be flexed in the deformation of the wall space based on the relative horizontal movement of the upper horizontal member with respect to the lower horizontal member with the joining means of (1). 2. At least one of the one end side of the cylinder and the rod is fixed to a corresponding corner of the wall space by a corresponding joining means with at least one of a one-sided and a two-sided frictional joint. 2. The damping wall structure according to 1. 3. At least one of the two joining means is:
A mounting plate member fixed to a corresponding one end of the cylinder and the rod, and another mounting plate member fixed to at least one of the pillar and the horizontal member at a corresponding corner of the wall space; The vibration damping wall structure according to claim 1 or 2, further comprising a bolt for fastening the plate member together. 4. At least one of the two joining means,
A mounting plate member fixed to a corresponding one end of the cylinder and the rod, and another mounting plate member fixed to at least one of the column and the horizontal member at a corresponding corner of the wall space, butted against each other at end faces. The damping wall structure according to claim 1 or 2, further comprising a pair of holding plates for holding the both mounting plate members, and bolts for fastening the both mounting plate members and the pair of holding plates together. 5. The damping wall structure according to claim 4, wherein the pair of holding plates are twisted at an intermediate portion thereof. 6. A damping device includes a piston fixed to a rod in a cylinder and having a through hole, and a viscous fluid disposed in the cylinder, wherein the piston has an axial relative position with respect to the cylinder. The damping wall structure according to any one of claims 1 to 5, wherein a damping force is generated by the flow of the viscous fluid through the through hole based on the movement. 7. A damping device includes a rod piston fixed to a rod with a gap formed between the cylinder and the cylinder, and a viscous fluid disposed in the cylinder. The damping force according to any one of claims 1 to 5, wherein a damping force is generated by the flow of the viscous fluid through a gap between the cylinder and the piston based on the relative movement of the piston in the axial direction. Diaphragm wall structure. 8. The damping device includes a bulge provided in the rod or the cylinder in the cylinder, and lead provided in the cylinder, and the damper has an axial relative position of the bulge to the cylinder or the rod. The vibration damping wall structure according to any one of claims 1 to 5, wherein a damping force is generated by the flow of lead based on the dynamic movement.