JP4824978B2 - Damping device mounting structure - Google Patents

Description

  The present invention relates to a vibration damping device mounting structure for mounting a vibration damping device on a building such as a house.

  The thing of patent document 1 is known as an example of the unit building provided with the damping material. The unit building described in Patent Document 1 has a column omitted corner portion in which a column, a floor beam, and a ceiling beam are connected to each other in a planar rectangular box shape, and a column is omitted at one corner of the planar rectangular shape. In a unit building in which four building units are installed with their column omitted corners facing each other, the ceiling of the building unit having one column omitted corner that is substantially straight with the column omitted corners attached to each other A plate-shaped composite material that is a combination of a reinforcing beam and damping material is attached to the side of the ceiling beam of the building unit that has the other column omitted corner from the side of the beam, and this composite material is connected to the ceiling beam. It is what.

In such a unit building, walking on the floor of the building unit on the upper floor or dropping an object on the floor vibrates the floor, and as a result, the ceiling beam of the building unit on the lower floor vibrates. However, this vibration is absorbed by the damping material in the composite material connected to the ceiling beam, and has the effect of not being propagated to the adjacent building unit.
JP 2000-345619 A

  In the unit building as described above, slight vibrations such as life vibrations can be suppressed, but it is difficult to suppress large vibrations caused by earthquakes and the like. In order to control such a large vibration, a relatively large vibration control device must be attached to the building. In this case, there arises a problem that the living space in the building is narrowed by the vibration control device.

  The present invention has been made in view of the above circumstances, and has a damping device mounting structure capable of easily mounting a damping device capable of damping a large vibration caused by an earthquake or the like without narrowing a living space. The issue is to provide.

In order to solve the above-mentioned problem, the invention described in claim 1 includes, as shown in FIGS. 1 to 4, for example, a plurality of columns 3 and upper beams 4 that connect the upper ends of the columns 3 to each other. 5 and a plurality of building units 2 formed in a substantially rectangular parallelepiped shape by the lower beams 6 and 7 connecting the lower ends of the pillars 3 are connected to each other vertically and horizontally,
The thin damping device 1 is inserted between the building units 2 and 2 adjacent to the left and right, and the damping device 1 is opposed to the upper beams 4 and 4 and the opposed lower beams of the building units 2 and 2 adjacent to the left and right. 6, 6 or fixed to the opposite column ,
The vibration damping device 1 includes an upper support portion 11, a lower support portion 12 positioned below the upper support portion 11, and an oscillating body 13 pivoted to both the upper support portion 11 and the lower support portion 12. The swing body 13 and the upper support section 11 or the lower support section 12 are connected to each other at a position above or below the pivot position between the upper support section 11 and the lower support section 12 of the swing body 13. Vibration damping means 35 for
The lower support portion 12 and the rocking body 13 are pivoted by inserting a pivot shaft 30 into a hole formed in the lower support portion 12, and the hole is an elongated hole that is vertically long. ,
The upper support portion 11 is fixed to the upper beams 4, 4 of the building units 2, 2 that are adjacent to each other on the left and right, or the upper ends of the opposite columns, and the lower support portion is opposed to the building units 2, 2 that are adjacent to the left and right. It is characterized by being fixed to the lower beams 6 and 6 or the lower ends of the opposing columns .

  As shown in FIG. 4, when the vibration damping device 1 is located in the middle of the longitudinal direction of the upper beam 4 and the lower beam 6, the vibration damping device 1 is opposed to the upper beam 4, 4 and the opposite lower beam 6. 6, when the vibration damping device 1 is located between the end portions of the upper beam 4 and the lower beam 6, the vibration damping device 1 is fixed to the opposing column 3 as shown in FIG.

According to the first aspect of the present invention, since the thin vibration damping device 1 is inserted between the adjacent building units 2 and 2, the living space is not so narrowed by the vibration damping device 1. In particular, when an inner wall is provided between adjacent building units 2 and 2, the vibration damping device 1 is not exposed by providing the vibration damping device 1 in the inner wall, which is preferable in terms of appearance.
Further, the thin vibration damping device 1 is fixed to the opposed upper beams 4 and 4 and opposed lower beams 6 and 6 of the building units 2 and 2 adjacent to the left and right, or opposed columns. Since the apparatus 1 can be easily attached and the vibration damping device 1 acts on both adjacent building units 2 and 2, vibration can be suppressed more effectively.
Further, in order to effectively use the damping function from a small deformation of a structure such as a building, the deformation of the building is amplified and transmitted to the vibration damping means 35 using the lever principle.
That is, when the building is deformed by vibration such as an earthquake, the upper beam 4 and the lower beam 6 of the building unit 2 constituting the building are displaced left and right, and accordingly, the upper support portion 11 and the lower support portion 12 are displaced. Are displaced to the left and right. When the upper support portion 11 and the lower support portion 12 are displaced left and right, the swinging body 13 swings like a pendulum around the central portion between the two pivot positions. The vibration of the portion is amplified, whereby the displacement between the upper beam 4 and the lower beam 6 is amplified. Therefore, the deformation of the vibration attenuating means 35 connecting the rocking body 13 and the upper support portion 11 or the lower support portion 12 can be amplified, so that the vibration damping function can be effectively used from the small deformation of the building.
Further, since the rocking body 13 is pivotally connected to both the upper support portion 11 and the lower support portion 12 at a position above or below the intermediate portion between the upper beam 4 and the lower beam 6, the intermediate portion As compared with the one pivoted in FIG. 2, the swinging body 13 can be shortened, and the swinging body 13 can be moved upward or downward from the intermediate portion between the upper beam 11 and the lower beam 12. Therefore, since the rocking body 13 can be prevented from bending in the out-of-plane direction, it is possible to prevent the vibration damping performance from being lowered.

The invention according to claim 2 is the mounting structure of the vibration damping device according to claim 1,
The vibration damping device 1 is inserted between the building units 2 and 2 adjacent to each other on the left and right sides with the width direction parallel to the upper beams 4 and 4 or the lower beams 6 and 6 facing in the left and right direction. And

  According to invention of Claim 2, the damping device 1 can be easily arrange | positioned in the narrow clearance gap between the adjacent building units 2 and 2. FIG.

The invention according to claim 3 is the mounting structure of the vibration damping device according to claim 1, for example, as shown in FIGS.
The vibration damping device 1 is inserted between the building units 2 and 2 adjacent to each other on the left and right sides with the width direction perpendicular to the upper beams 4 and 4 or the lower beams 6 and 6 facing in the left and right direction. And

  According to the third aspect of the present invention, when the space between the adjacent building units 2 and 2 is increased, the vibration damping device can be easily and effectively disposed between the building units 2 and 2.

The invention according to claim 4 is the mounting structure of the vibration damping device according to any one of claims 1 to 3 , for example, as shown in FIGS.
The upper part of the upper support part 11 protrudes from the upper beam, and this upper part (extension part 16) is located above and the lower beam 6 facing the upper building units 2 and 2 adjacent to the left and right. , 6 are fixed.

According to the fourth aspect of the present invention, the upper portion of the upper support portion 11 is fixed to the opposed lower beams 6 and 6 of the building units 2 and 2 that are located above and adjacent to each other on the left and right. The support portion 11 can be firmly fixed, and the vibration damping action of the vibration damping device 1 can be applied to the upper building units 2 and 2.

  According to the present invention, a thin vibration damping device is inserted between left and right adjacent building units, and the vibration damping device is fixed to the opposing upper beam and the opposing lower beam of the right and left adjacent building units. Therefore, the vibration control device does not reduce the living space so much, the vibration control device can be easily attached, and the vibration control device acts on both adjacent building units. I can shake it.

Embodiments of the present invention will be described below with reference to the drawings.
(First embodiment)
In this Embodiment, as shown in FIG. 1, the thin damping device 1 is attached to the unit type building. The unit type building is constructed by connecting a plurality of building units 2 vertically and horizontally. As shown in FIG. 3, the building unit 2 includes four columns 3, upper beams 4 and 5 that connect the upper ends of these columns 3, and lower beams 6 and 7 that connect the lower ends of the columns 3. A ceiling beam (not shown) is installed between the upper beams 4 and 4 on the long side, and a floor (not shown) is provided between the lower beams 6 and 7 on the long side. A beam is constructed.

And in this Embodiment, as shown in FIG. 1, the thin damping device 1 is inserted between the building units 2 and 2 adjacent to the right and left installed in the 1st floor.
The vibration damping device 1 is configured as follows.
That is, first, the vibration damping device 1 includes an upper support portion 11, a lower support portion 12 positioned below the upper support portion, and an oscillating body that is pivotally connected to both the upper support portion 11 and the lower support portion 12. 13 and vibration attenuating means 14 for connecting the swinging body 13 and the upper support part 11 at a position higher than the pivoting position of the upper support part 11 and the lower support part 12 of the swinging body 13. Yes.

The upper support portion 11 includes an upper support portion main body 15 and an extending portion 16 extending upward from the upper support portion main body 15.
The upper support portion 11 is formed of a pentagonal plate-like iron plate, and fixed plates 17 and 17 are formed orthogonally to the upper support portion 11 at both ends of the upper side portion. The fixed plate 17 is formed so as to protrude from both surfaces of the upper support portion 11, and one fixed plate 17 is one of the right and left adjacent building units 2 and 2 installed on the first floor. The other fixed plate 17 protrudes to the other building unit 2 side.
Both fixing plates 17 and 17 are brought into contact with the lower surfaces of the upper beams 4 and 4 facing the left and right building units 2 and 2 installed on the first floor and fixed by bolts 18.

The extension portion 16 is a rectangular plate-shaped iron plate formed integrally with the upper support portion 11, and the upper portion thereof is the lower side of the building units 2, 2 adjacent to each other on the left and right sides. Extends between beams 6 and 6. The lower part of the extension part 16 is located between the upper beams 4 and 4 of the building units 2 and 2 adjacent to each other on the left and right of the first floor. It is fixed.
Furthermore, the upper part of the extension part 16 is located between the opposing lower beams 6 and 6 of the building units 2 and 2 adjacent to each other on the left and right of the second floor. Is fixed through.

The lower support portion 12 is formed of a structural panel for construction having a substantially isosceles triangular plate shape. This structural panel (lower support portion 12) forms a substantially isosceles triangular frame by a plurality of iron frames 12a, and faces 12b and 12b formed of structural plywood on both sides of the frame. It is attached and very rigid. Further, the upper and lower lengths of the lower support portion 12 are longer than the upper and lower lengths of the upper support portion 11, and the thickness of the lower support portion 12 is also thicker than the thickness of the upper support portion 11.
A plate 23 is fixed to the lower portion of the lower support portion 12, and fixed plates 25 and 25 are formed at both ends of the lower side of the plate 23 so as to be orthogonal to the plate 23. The fixed plate 25 is formed so as to protrude from both surfaces of the plate 23, and one fixed plate 25 is one of the building units 2 and 2 adjacent to the left and right installed on the first floor. It protrudes to the unit 2 side, and the other fixing plate 25 protrudes to the other building unit 2 side.
Both fixing plates 25, 25 are brought into contact with the upper surfaces of the lower beams 6, 6 facing the building units 2, 2 adjacent to the left and right installed on the first floor and are fixed by bolts 26.

  Further, an extension plate 27 extending downward is formed integrally with the plate 23 on the lower side of the plate 23, and is opposed to the building units 2 and 2 adjacent to each other on the first floor. It extends to between the lower beams 6 and 6. The extension plate 27 is fixed to the lower beams 6 and 6 by a bolt 28 via spacers 29.

The rocking body 13 is pivotally connected to both the upper support portion 11 and the lower support portion 12.
That is, first, the oscillating body 13 is composed of two oscillating plates. Each of the swing plates is formed of a vertically long iron plate that is formed wider as it goes downward, and its lower end is pointed at an obtuse angle. The two rocking plates are arranged in parallel and spaced apart from each other, and are arranged so that a part of the upper support portion 11 is sandwiched between them.
A pivot shaft 30 is inserted through the lower end of the swing plate. On the other hand, the lower surface of the connecting member 31 is fixed to the frame 12a at the upper end of the lower support portion 12, and the connecting member 31 is inserted between the swinging plates. The connecting shaft 31 is inserted into the connecting shaft 31, and the rocking body 13 is rotatable about the connecting shaft 30. Note that the hole through which the pivot shaft 30 is inserted is an elongated hole that is long in the vertical direction, thereby releasing the upward movement of the pivot shaft 30 when the rocking body 30 is swung.
A pivot shaft 32 is inserted into the lower end of the swing plate at a position above the pivot shaft 30. On the other hand, the pivot shaft 32 is inserted into the lower end portion of the upper support portion 11, and the rocking body 13 can rotate about the pivot shaft 32.
As described above, the rocking body 13 is pivotally connected to both the upper support portion 11 and the lower support portion 12 at a position higher than the intermediate portion between the upper beam 4 and the lower beam 6.

In addition, the swinging body 13 and the upper support part 11 are vibration damping means at a position above the pivotal position (position of the pivoting shafts 32 and 30) between the upper support part 11 and the lower support part 12 of the swinging body 13. It is connected through.
That is, the swing plate constituting the swing body 13 extends to the upper support portion 11 side, and the upper end portion of the swing plate protrudes into the opening 11 a formed in the upper support portion 11.
On the other hand, a damping component 36 having viscoelastic bodies (vibration damping means) 35, 35 is provided in the opening 11a. The vibration damping component 36 includes a vertically-long rectangular iron plate 36a, a pair of horizontally-long rectangular iron plates 36b and 36b that are spaced apart so as to sandwich the plate 36a, and the plate 36a and the plates 36b and 36b. The viscoelastic bodies 35 and 35 provided are provided. The viscoelastic bodies 35 and 35 are formed in a rectangular plate shape, and are fixed to the plate 35a and the plates 36b and 36b by an adhesive or vulcanization adhesion. Further, the plate 36a has the same thickness as the upper support portion 11, and its lower end portion is sandwiched between the upper end portions of the pair of swing plates, and is coupled to the upper end portions of the swing plates by bolts. ing. Further, the viscoelastic bodies 35 and 35 are set to a thickness that protrudes from the surface of the upper support portion 11 in a state where the plate 36a is disposed in the opening portion 11a.

  Further, both end portions of the plates 36b, 36b protrude laterally from the opening portion 11a, and the protruding portions sandwich the upper support portion 11 and separate the upper support portion 11 from a predetermined gap. That is, since the viscoelastic bodies 35 and 35 protrude from the surface of the upper support portion 11, the plates 36 b and 36 b fixed to the surfaces of the viscoelastic bodies 35 and 35 correspond to the protrusions of the viscoelastic bodies 35 and 35. The upper support part 11 is spaced apart. The plates 36b and 36b are connected to the upper support portion 11 with bolts in a state in which spacers are inserted at the intervals. The bolt inserted into one plate 36b passes through the spacer, passes through the upper support portion 11, passes through the spacer, is inserted into the other plate 36b, and is screwed and tightened. As a result, the plates 36 b and 36 b are fixed to the upper support portion 11. The spacers, bolts, and plates 36b and 36b keep the viscoelastic bodies 35 and 35 constant in thickness.

In the vibration damping device 1 as described above, first, the building's housing vibrates left and right due to an earthquake or the like, and thus the building unit vibrates so as to be deformed left and right so that it becomes a parallelogram in a side view. To do. Accordingly, the upper support portion 11 and the lower support portion 12 are displaced left and right. Then, the pivot shafts 32 and 30 that pivot the swinging body 13 to both the upper support portion 11 and the lower support portion 12 are displaced left and right.
When the pivoting shafts 30 and 32 are displaced to the left and right, the rocking body 13 swings like a pendulum around the central portion between the two pivoting positions (positions of the pivoting shafts 30 and 32). The end of the oscillating body 13 is displaced by amplifying the vibration, whereby the displacement between the upper beams 4 and 5 and the lower beams 6 and 7 of the building unit 2 is amplified.
Accordingly, since the deformation of the viscoelastic body (vibration damping means) 35 connecting the rocking body 13 and the upper support portion 11 can be amplified, the vibration damping function can be effectively operated from the small deformation of the building unit 2. . Therefore, the vibration of the building frame can be controlled.

Further, the thin damping device 1 as described above has at least one set of damping devices when the two damping devices 1 and 1 are set as one set and the directions orthogonal to each other in plan view are the X direction and the Y direction. One of 1 is installed along the X direction, and the other is installed along the Y direction. For example, as shown in FIG. 4, two sets of vibration control devices 1 are arranged in the building, and one of the vibration control devices 1 is installed along the X direction, and the other is along the Y direction. is set up.
In FIG. 1 and FIG. 2, the vibration damping device 1 is fixed to the upper beams 4, 4 facing the long sides of the building units 2, 2 adjacent to the left and right and the lower beams 6, 6 facing the long sides. However, as shown in FIG. 3, the vibration damping device 1 is also applied to the upper beams 5 and 5 facing the short side of the building unit and the lower beams 7 and 7 facing the short side. Is fixed.
In this way, one of the vibration damping devices 1 and 1 is arranged along the X direction and the other is arranged along the Y direction, so that the roll of the earthquake is decomposed in the X and Y directions and effectively controlled. I can shake it.

According to the present embodiment, since the thin vibration damping device 1 is inserted between the adjacent building units 2 and 2, the living space is not so narrowed by the vibration damping device 1.
Further, the thin vibration damping device 1 is fixed to the upper beams 4, 4 (5, 5) facing each other and the lower beams 6, 6 (7, 7) facing each other in the building units 2, 2 adjacent to the left and right. Therefore, while being able to attach this damping device 1 easily, since the damping device 1 acts on both adjacent building units 2 and 2, it can suppress more effectively.
Furthermore, since the extension part 15 at the upper part of the upper support part 11 is fixed to the lower beams 6 and 6 facing the building units 2 and 2 located on the upper side and adjacent to the left and right, the upper support part 11 is While being able to fix firmly, the damping action of the damping device 1 can be made to work also on the upper building units 2 and 2.

(Second Embodiment)
5 to 7 show a second embodiment. The second embodiment is different from the first embodiment in that the vibration damping device 1 is adjacent to the left and right sides with the width direction of the upper beam 5 or the lower beam 7 facing the left and right direction perpendicular to each other. Since this is a point inserted between the matching building units 2 and 2 and fixed to the opposing pillars 3 and 3, this point will be mainly described below, and the same reference numerals are given to the same components as those in the first embodiment. The description is simplified or omitted.

  First, in the present embodiment, as shown in FIG. 6, the building units 2 and 2 adjacent to the left and right on the first floor and the second floor are relatively large in the left and right as compared with the case of the first embodiment. It is separated. Reinforcing beams 40 and 40 are installed between the opposing columns of the units 2 and 2 that are separated from each other on the left and right. The upper reinforcing beam 40 is disposed on the extension of the upper beam 4 of the building unit 2, and the lower reinforcing beam 40 is disposed on the extension of the lower beam 6.

And the said damping device 1 is arrange | positioned between the upper and lower reinforcement beams 40 and 40 constructed between the building units 2 and 2 adjacent on either side of the 1st floor. A fixed plate 11b is formed on the upper side portion of the upper support portion 11. The fixed plate 11b is in contact with the lower surface of the upper reinforcing beam 40 and is fixed to the reinforcing beam 40 with bolts 42. .
Further, brackets 43, 43 are formed at the upper ends of the opposing columns 3, 3 of the adjacent building units 2, 2, so that both corners of the upper support portion 11 are bolts. 44 and 44 are fixed.

A fixed frame 45 is provided on the lower side of the lower support portion 12, and a fixed plate 45 a is formed below the fixed frame 45. The fixing plate 45 a is in contact with the upper surface of the lower reinforcing beam 40 and is fixed to the reinforcing beam 40 with bolts 46.
Further, brackets 47 and 47 are formed at the lower ends of the opposing columns 3 and 3 of the adjacent building units 2 and 2 so that both ends of the fixed frame 45 are bolts 48. , 48.

As shown in FIG. 7, the thin vibration damping device 1 as described above includes an upper beam 4 and a lower beam 6 positioned on the long side and on the outer side between the building units 2 and 2 adjacent to each other in the plan view. Further, as described above, it is fixed to the opposing columns 3 and 3 and the reinforcing beam 40 of the adjacent building units 2 and 2.
Thus, in this Embodiment, when the space between the adjacent building units 2 and 2 is enlarged, the vibration damping device 1 can be easily and effectively arranged between the building units 2 and 2.

An example of the attachment structure of the damping device concerning the present invention is shown, and it is the sectional side view. FIG. It is a perspective view showing a building unit. FIG. It is the front view which shows the other example of the attachment structure of the damping device which concerns on this invention. It is a front view which shows schematic structure of the building which attached the vibration damping device. It is the same plan view

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Damping device 2 Building unit 3 Pillar 4,5 Upper beam 6,7 Lower beam 11 Upper support part 12 Lower support part 13 Oscillator 14 Vibration damping means 30, 32 Pivoting axis

Claims (4)

A plurality of building units formed in a substantially rectangular parallelepiped shape are connected vertically and horizontally by a plurality of columns, an upper beam connecting the upper ends of the columns, and a lower beam connecting the lower ends of the columns. And
A thin damping device is inserted between the building units adjacent to the left and right, and this damping device is fixed to the opposing upper beam and the opposing lower beam, or the opposing column of the building unit adjacent to the left and right ,
The vibration damping device includes an upper support portion, a lower support portion positioned below the upper support portion, an oscillating body pivoted to both the upper support portion and the lower support portion, and the oscillating body of the oscillating body. From the pivot position of the upper support portion and the lower support portion, the swinging body and vibration damping means for connecting the upper support portion or the lower support portion at a position above or below,
The lower support part and the rocking body are pivoted by inserting a pivot shaft into a hole formed in the lower support part, and the hole is a long hole that is vertically long,
The upper support is fixed to the upper beam or the upper end of the opposite column of the building unit adjacent to the left and right, and the lower support is the lower beam of the lower beam or the opposite column of the building unit adjacent to the left and right. A structure for mounting a vibration damping device characterized by being fixed to In the mounting structure of the vibration damping device according to claim 1,
The damping device mounting structure is characterized in that the damping device is inserted between building units adjacent to the left and right with the width direction parallel to the upper beam or the lower beam facing in the left-right direction. In the mounting structure of the vibration damping device according to claim 1,
The damping device mounting structure is characterized in that the damping device is inserted between building units adjacent to the left and right, with the width direction being a right angle to the upper beam or the lower beam facing in the left-right direction. In the mounting structure of the vibration damping device according to any one of claims 1 to 3 ,
The upper part of the upper support part protrudes from the upper beam, and the protruding upper part is located above and fixed to the opposite lower beam of the upper building unit adjacent to the left and right. Shaking device mounting structure.

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