JP2020090830A - Vibration control fitting and vibration control structure - Google Patents

Abstract

To provide a vibration control fitting which can be easily manufactured at low cost, easily mounted so as to configure a high-magnification bearing wall, and also have a vibration control function.SOLUTION: A vibration control fitting comprising a pair of fixing members to be fixed to a structural material of a house, a plate member sandwiched by the pair of fixing members, a friction member sandwiched by the fixing member and the plate member, a sliding plate sandwiched by the fixing member and the friction member, the fixing member having a substantially L-shaped cross section, the fixing member in contact with the structural material at one plane, other plane of the pair of fixing members sandwiching the plate member, the friction member and the sliding plate, the other planes of the fixing member having one side facing the one plane which includes a convex piece projectingly provided in parallel with the one plane; the plate member having a long hole; and a bolt to be inserted into a bolt hole provided on the other plane of the fixing member and the long hole of the plate member and a nut screwed to the bolt forming the pair of fixing members, the plate member, the sliding plate and the friction member integrally.SELECTED DRAWING: Figure 1

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration damping metal member attached to a structural material such as a pillar or a horizontal member and a vibration damping structure using a frame body made of the structural material in a house.

BACKGROUND ART As a vibration damping member for a house, there is known a vibration damping member which is arranged in a frame made of a horizontal member such as a pillar, a base or a beam.
In particular, in recent years, a large number of viscoelastic dampers have been used.

JP 2007-262707 A

However, since the mechanism of the viscoelastic damper is complicated, there is a problem that the vibration damping member using the viscoelastic damper becomes expensive.
In addition, since viscoelastic dampers do not have a seismic resistance function, if a force acts on a column or horizontal member due to an earthquake or the like, the column or horizontal member will be displaced, and even if the force acting is small, the column or horizontal member will not move. There is a problem that the frame body is displaced and deformed.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vibration damping metal member and a vibration damping structure which can be inexpensively and easily manufactured, can be easily attached, can constitute a high-power bearing wall, and can also have a vibration damping function.

The first invention of the present application made in order to achieve the above object includes a pair of fixing members fixed to a structural material of a house, a plate member sandwiched by the pair of fixing members, and the fixing member and the plate member. It comprises a friction material to be sandwiched and a slide plate to be sandwiched by the fixing material and the friction material. The fixing material has a substantially L-shaped cross-section, and the fixing material has one plane contacting the structural material. The plate material, the friction material, and the slide plate are sandwiched in contact with each other on the other plane of the fixing material, and among the other planes of the fixing material, the side opposite to the one plane includes the one plane. By projecting parallel convex pieces, the plate member has an elongated hole, and by a bolt hole provided on the other plane of the fixing member, a bolt inserted into the elongated hole of the plate member, and a nut screwed to the bolt. A vibration damping metal article, characterized in that the pair of fixing members, the plate member, the sliding plate and the friction member are integrated.
A second invention of the present application is a vibration damping structure in which a damping metal object is attached to a structural material of a house, wherein the structural material has two parallel columns and a horizontal portion above the two columns. It is composed of a beam to be hung and a foundation horizontally laid under the two pillars. The vibration damping metal member is fixed to any structural material, and the vibration damping metal member is fixed from the vibration damping metal member. The vibration damping metal object has a pair of fixing members fixed to the structural member, and a plate member sandwiched by the pair of fixing members. A friction member sandwiched between the fixing member and the plate member, and a slide plate sandwiched between the fixing member and the friction member, wherein the plate member has a long hole and is provided in the fixing member. A vibration damping structure, characterized in that the pair of fixing members, the plate member, the sliding plate, and the friction member are integrated by a bolt inserted into the bolt hole and the elongated hole and a nut screwed into the bolt. provide.
A third invention of the present application provides the vibration damping structure of the second invention, wherein the braces are made of wood.

The present invention can obtain at least one of the following effects by the means for solving the above problems.
(1) Since the vibration damping metal member has a configuration in which only a plate member having a long hole provided by a fixing member, a friction member, and a sliding plate are sandwiched, it can be easily manufactured and is inexpensive. ..
(2) By projecting the convex piece on the fixing member, when the braces are fixed to the plate member, the position of the bracing with respect to the plate member can be easily determined by contacting the convex piece, and the fixing member is obtained. Even when driving screws etc., the braces do not shift.
(3) Since the sliding plate is arranged between the fixing member and the friction member, the fixing member does not participate in friction, so that the fixing member can be inexpensive and suitable for fixing.
(4) Although the metal for rubbing against the friction material is relatively expensive, it can be manufactured at low cost by making the sliding plate thin.
(5) The combination with the friction material can be easily changed only by changing the material of the sliding plate.
(6) The friction effect can be easily changed by freely changing the shape and size of the sliding plate.
(7) By having both the earthquake resistance function and the vibration damping function, damage to the house can be suppressed and the life can be extended.

Explanatory drawing of the damping structure of the present invention Exploded perspective view of the vibration damping metal product of the present invention Side view of the damping metal object of the present invention Explanatory drawing of a brace and a mounting member in the damping structure of the present invention Explanatory drawing (1) of the deformation of the damping material of this invention Explanatory drawing of deformation of the vibration damping metal article of the present invention (2) Explanatory drawing of the damping structure of this invention which concerns on another Example (1) Explanatory drawing of the damping structure of this invention which concerns on another Example (2)

Hereinafter, the damping structure of the present invention will be described in detail with reference to the drawings.

[Example 1]
(1) Damping Structure The damping structure of the present invention is a structure in which a frame made of a structural material such as a pillar or a horizontal member of a house is provided with a damping function.
The vibration damping structure of the present invention includes a frame body composed of two parallel 1a and 1b, a beam 2 extending vertically above and below pillars 1a and 1b, and a base 3, and a damping metal member 4 and This is a combination of braces 5 (Fig. 1). A floor plywood 6 may be arranged on the base 3.
The damping hardware 4 is attached to the pillar 1a at substantially the center in the height direction.

(2) Damping metal member The damping metal member 4 is composed of a pair of fixing members 41 joined to the pillar 1a, a plate member 42 sandwiched by the pair of fixing members 41, and a friction member arranged between the fixing member 41 and the plate member 42. 43 and a sliding plate 44 arranged between the fixing member 41 and the friction member 43. (Figure 2)

(2-1) Fixing Material The fixing material 41 is a member made of steel material having a substantially L-shaped cross section.
The fixing member 41 is provided with a plurality of screw holes 411 on one plane forming one side of the L-shape, and the outside of the one plane is brought into contact with the pillar 1a and fixed by screws or the like (FIG. 3).
Then, the plate member 42, the friction member 43, and the sliding plate 44 are sandwiched on the outer sides of the respective other planes of the pair of fixing members 41.
Plural bolt holes 412 are provided on the other plane of the fixing member 41. Further, among the other planes, a convex piece 413 parallel to the one plane is provided so as to project on a side facing the one plane.

(2-2) Plate Material The plate material 42 is made of a steel plate.
The plate member 42 includes a sandwiching portion 421 and a bracing attachment portion 422.
In the plate material 42, the bracing attachment portions 422 protrude from the fixing material 41 when the holding portion 421 is held by the fixing material 41.
The holding portion 421 is provided with an elongated hole 423 corresponding to the bolt hole 412 of the fixing member 41. The long hole 423 has a shape that is long in the vertical direction so as to be parallel to the pillar 1a that is a structural material when the vibration damping metal member 4 is attached.
The brace attaching portion 422 is provided with a plurality of brace screw holes 424.

(2-3) Friction material The friction material 43 is made of phenol resin.
The friction material 43 suppresses vibration by frictional resistance with the slide plate 44.
The friction material 43 is arranged between the plate material 42 and the sliding plate 44, but since the friction resistance on the plate material 42 side is larger than the friction resistance of the sliding plate 44, the friction material 43 is placed between the plate material 42 and the sliding plate 44. The displacement of the plate member 42 can be tracked simply by sandwiching the plate member in between.
Therefore, it is not necessary to bond the friction material 43, and the damping metal article 4 of the present invention can be easily manufactured.
Since it is not necessary to bond the friction material 43, the shape and size can be freely changed.
Further, since no adhesive is used, there is no fear of strength due to stress concentration or peeling due to curing of the adhesive layer.
However, the friction material 43 and the plate material 42 may be bonded.

(2-4) Sliding plate The sliding plate 44 is made of a material having a low friction coefficient, such as stainless steel, a galvanized steel plate, a nickel plated steel plate, or aluminum.
By disposing the sliding plate 44 between the fixing member 41 and the friction member 43, the friction member 43 is sandwiched between the plate member 42 and the sliding plate 44, and the fixing member 41 does not participate in friction, so it is inexpensive. Can be made of a material suitable for fixing. Further, the sliding plate 44 can be manufactured at low cost by making it smaller and thinner than the fixing member 41.
The slide plate 44 is provided with bolt holes 441 corresponding to the bolt holes 412 of the fixing member 41.

(2-5) Pinching by bolts and nuts The friction material 43 is arranged between the fixing member 41 and the plate member 42, and the sliding plate 44 is arranged between the fixing member 41 and the friction member 43. Bolt holes 412, the long holes 423 of the plate member 42, and the bolt holes 441 of the sliding plate 44 are overlapped with each other, and the bolts 451 are inserted through the nuts by inserting the bolts 451 so as to penetrate the set of fixing members 41 and the plate member 42. The fixing member 41, the plate member 42, the friction member 43, and the sliding plate 44 are integrated by screwing 452.
By tightening the nut 452, a clamping force by the fixing members 41 on both sides acts on the plate member 42, the friction member 43, and the sliding plate 44. Since the vibration damping metal member 4 has a configuration in which the plate member 42, the friction member 43, and the sliding plate 44 are only sandwiched by the fixing member 41, it can be easily manufactured and is inexpensive.
The long holes 423 of the plate member 42 have a shape that is long in the vertical direction, and the number of bolts 451 can be arbitrarily selected along the long holes 423. Therefore, the number of bolts 451 can be selected according to the required clamping force. ..

(3) Brace The damping material 4 of the present invention has the fixing member 41 attached to the pillar 1a. Then, the braces 5 arranged to be inclined from the pillar 1 a to the joint portion of the pillar 1 b and the beam 2 and the joint portion of the pillar 1 b and the floor plywood 6 on the base 3 are connected to the plate member 42.
The braces 5 are made of wood having a square cross section. (Figure 3).
The brace 5 has a side surface abutting against one surface of the brace mounting portion 422 of the plate member 42, and is fixed by driving a screw or the like into the brace screw hole 324 from the other surface of the brace mounting portion 422. At this time, the position of the braces 5 with respect to the plate member 42 can be easily determined by abutting the end surface of the braces 5 on the convex piece 413 of the fixing member 41, and the braces 5 can be pushed even when driving a screw or the like. There is no deviation.
The braces 5 are arranged vertically so as to have a dogleg shape (FIG. 1).
Since commercially available wood can be used for the braces 5, a vibration damping structure can be constructed at a very low cost.

(4) Attaching member One end of the braces 5 is fixed to the plate 42 of the vibration damping metal member 4, and the other end is attached to the frame through the attaching member 7.
The mounting member 7 includes a flat horizontal material mounting portion 71, a flat pillar mounting portion 72 orthogonal to the horizontal material mounting portion 71, and a flat surface orthogonal to the horizontal material mounting portion 71 and the pillar mounting portion 72. And a connecting surface 73 of (FIG. 4).
The attachment member 7 fixes the horizontal member attachment portion 71 to the beam 2 or the floor plywood 6 and the column attachment portion 72 to the column 2 and fixes them with screws or the like.
Then, the braces 5 are brought into contact with the side surface of the connecting surface 73 of the mounting member 7 and fixed by screws or the like.

(5) Seismic resistance function When a force (for example, a seismic intensity of about 1 to 4) acts on a house due to an earthquake, the force acts in a direction in which the columns 1a and 1b are tilted.
In the vibration damping structure of the present invention, the braces 5 are attached via the attachment members 7, and the opposite end of the braces 5 attached to the attachment members 7 is attached to the plate member 42 of the vibration damping hardware 4 (Fig. 5(a), FIG. 6(a)).
The plate member 42 is sandwiched by the fixing members 41 attached to the pillar 1 a, and is tightened by the bolt 451 and the nut 452. Further, a friction material 43 and a sliding plate 44 are arranged between the fixing material 41 and the plate material 42.
Therefore, the columns 1 a and 1 b are reinforced by the rigidity of the mounting member 7, the clamping force of the plate member 42 by the tightening of the bolt 451 and the nut 452, and the frictional force between the friction member 13 and the sliding plate 42. It suppresses the relative displacement of 1a, resists the force in the direction in which the pillar 1a tilts, and exerts a seismic function.
By adjusting the torque when tightening the bolt 451 and the nut 452, the seismic function can also be adjusted.

The braces 5 are fixed with their end surfaces in contact with the convex pieces 413 of the fixing member 41 (FIG. 3).
When the columns 1a and 1b are tilted, the columns 1a and 1b and the braces 5 are displaced, but at this time, when a force (compressive force) in the direction of the columns 1a acts on the braces 5, the braces 5 come into contact with each other. The displacement is suppressed by the protruding piece 413. As a result, the force acting on the braces 5 is dispersed in the convex pieces 413 having an area, and the screws or the like for fixing the braces 5 to the plate member 42 are removed or the fixing member 41 penetrates into the braces 5. Can be prevented.

(6) Vibration damping function When a force greater than the above-described seismic resistance function (for example, a large earthquake with a seismic intensity of 5 or more) acts and the columns 1a and 1b are tilted, the columns 1a and 1b and the braces 5 are displaced.
The brace 5 is attached to the pillar 1b, the beam 2, and the floor plywood 5 via the attachment member 7. Since the horizontal member attachment portion 71 and the column attachment portion 72 of the attachment member 7 are flat, the force acting between the braces 5, the pillar 1b, the beam 2, and the floor plywood 5 is dispersed in the plane. As a result, it is possible to prevent the braces 5 from biting into the pillars 1b, the beams 2, and the floor plywood 5 to deform the frame body, and to secure a high wall magnification.
When the braces 5 are displaced, the fixing material 41 and the plate material 42 are relatively displaced along the direction of the long hole 423 of the plate material 42 (FIGS. 5B and 6B ).
Since the braces 5 are fixed to the plate member 42, the braces 5 and the plate member 42 are displaced in parallel to the pillar 1 a and the fixing member 41. At this time, the friction material 43 located between the plate member 42 and the sliding plate 44 follows the plate member 42 having a large friction resistance, and the friction between the sliding plate 44 and the friction member 43 following the plate member 42 causes an earthquake. The energy of is converted into heat energy and vibration is controlled.
By simply changing the combination with the friction material 43 only by changing the material of the sliding plate 44, it is possible to change the vibration damping effect by friction.
Further, by freely changing the shape and size of the sliding plate 44, it is possible to easily change the vibration damping effect by friction.
By arranging the brace 5 so as to have a dogleg shape (FIG. 1), the compressive force and the tensile force alternately act on the upper and lower brace 5, respectively. As a result, buckling of the braces 5 is unlikely to occur, and an efficient vibration damping structure can be provided.

(7) Combination of seismic resistance function and vibration damping function As described above, the vibration damping structure of the present invention has the clamping force of the plate member 42 by tightening the bolt 451 and the nut 452, and the friction between the friction member 13 and the sliding plate 42. In an earthquake that does not exceed the force, the seismic function works to suppress displacement of the housing structure. For example, in an earthquake with a seismic intensity of about 1 to 4, the structure of the house will not be displaced, so even if the aftershocks are repeated, the house and the damping structure will not be damaged.
In addition, in the case of an earthquake with a seismic intensity of 5 or more, which exceeds the clamping force of the plate member 42 due to the tightening of the bolt 451 and the nut 452, and the frictional force between the friction member 13 and the sliding plate 42, the vibration control function works and the earthquake It reduces the shaking of the house and prevents the collapse of the house.
As described above, the vibration damping structure of the present invention has both a seismic resistance function and a vibration damping function, so that damage to a house can be suppressed and the life can be extended.

[Other Examples]
In the above-described embodiment, the vibration damping metal member 4 is attached to the pillar 1a and arranged so as to have the shape of the braces 5; however, the vibration damping metal member 4 is also attached to the pillar 1b to form the X-shaped braces. May be arranged so as to present (FIG. 7).
By arranging another set of the damping metal member 4 and the braces 5, a higher wall magnification can be secured.
Alternatively, the damping metal member 4 may be attached to the beam 2 and the floor plywood 6 (base 3), and the braces 5 may be arranged in a diamond shape inclining to the centers of the columns 1a and 1b (FIG. 8).

1 Pillar 2 Beam 3 Base 4 Damping material 41 Fixing material 411 Screw hole 412 Bolt hole 413 Convex piece 42 Plate material 421 Clamping portion 422 Bracing attachment portion 423 Long hole 424 Bracing screw hole 43 Friction material 44 Sliding plate 441 Bolt hole 451 Bolts 452 Nuts 5 Braces 6 Floor plywood 7 Mounting members 71 Horizontal frame mounting parts 72 Column mounting parts 73 Connecting surface

Claims (3)

A pair of fixing materials fixed to the structural material of the house,
A plate material sandwiched by the pair of fixing materials,
A friction material sandwiched between the fixing material and the plate material,
A sliding plate sandwiched by the fixing material and the friction material,
The fixing member has a substantially L-shaped cross section,
The fixing member abuts one surface against the structural member, and sandwiches the plate member, the friction member and the sliding plate on the other flat surface of the pair of fixing members,
Among the other planes of the fixing member, on a side facing the one plane, a protruding piece parallel to the one plane is provided in a protruding manner.
The plate material has a long hole,
The pair of fixing members, the plate member, the sliding plate, and the friction member are integrated by a bolt hole formed in the other plane of the fixing member, a bolt inserted into the long hole of the plate member, and a nut screwed with the bolt. Characterized in that,
Damping hardware. A vibration damping structure in which vibration damping hardware is attached to the structural material of the house,
The structural member is composed of two parallel columns, a beam that horizontally extends above the two columns, and a base that horizontally extends below the two columns.
The damping metal fixture is fixed to one of the structural materials,
The structure has two braces arranged from the damping metal object to the structural material facing the structural material to which the damping metal material is fixed,
The damping material is
A pair of fixing members fixed to the structural member,
A plate material sandwiched by the pair of fixing materials,
A friction material sandwiched between the fixing material and the plate material,
A sliding plate sandwiched by the fixing material and the friction material,
The plate material has a long hole,
Characterized in that the pair of fixing members, the plate member, the sliding plate and the friction member are integrated by a bolt hole provided in the fixing member and a bolt inserted into the elongated hole and a nut screwed with the bolt. Vibration control structure. The damping structure according to claim 2,
A vibration damping structure characterized in that the braces are made of wood.

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