JP2007169896A - Vibration control device and vibration control panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vibration control device which can adjust the amount of deformation of a vibration control member with respect to the amount of deformation of a building. <P>SOLUTION: This vibration control device 1 mounted on the building comprises: a pair of upper and lower supporting parts 6 and 7 provided in the state of facing structural parts such as the upper and lower beams 2a and 2b of the building; an oscillating body 8 supported and pivotally connected to each of the upper and lower supporting parts 6 and 7, and oscillating on an almost central part between both pivotally connected parts 8e and 8f when the upper and lower supporting parts 6 and 7 are displaced by vibrations; and a vibration control rubber 9 provided in a position, farther away from the almost central part between both the pivotally connected parts 8e and 8f than the pivotally connected parts 8e and 8f, on the oscillating body 8 and provided on the upper beam 2a of the building. A position of the pivotally connected part 8e of the oscillating body 8 can be changed. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a vibration damping device attached to a building and a vibration damping panel including the vibration damping device in a frame.

  The thing of patent document 1 is known as an example of the damping device attached to a building. This vibration damping device includes a pair of panels attached to a building frame, a pair of stays mounted between the pair of panels, and a hydraulic damper connected between the pair of stays. With this configuration, when vibration energy is propagated to the building frame, the frame is deformed and relative displacement occurs between the panels, and the hydraulic damper can be deformed to control the vibration, but the deformation of the building frame is small. In this case, since the deformation given to the hydraulic damper is small, there is a problem that the damping force for attenuating the vibration of the building is also small. Therefore, a pair of support portions provided facing the building housing, a rocking body pivotally supported by the pair of support portions, and a damping member provided on the end of the rocking body and the building housing Have been proposed.

In this vibration damping device, when deformation occurs in the building frame due to an earthquake or the like, a pair of support portions provided in the building frame are displaced. And the swinging body swings like a pendulum around the center of both pivotal parts, and the end of this swinging body can amplify the swing and amplify the deformation of the damping member. Even the vibration control function can work effectively.
JP-A-2005-207228

  However, because the amount of deformation of the building differs depending on the area, ground, structure, etc., even if the former vibration damping device or the latter vibration damping device is applied as it is, a sufficient vibration damping effect may be obtained depending on the building. It may not be obtained. Therefore, it has been desired to develop a vibration damping device capable of adjusting the deformation amount of the vibration damping member with respect to the deformation amount of the building.

  The subject of this invention is providing the damping device which can adjust the deformation amount of the damping member with respect to the deformation amount of a building.

In order to solve the above problems, the invention described in claim 1 is, for example, as shown in FIGS.
A pair of support portions (for example, the upper support portion 6 and the lower support portion 7) provided to face the structural portion of the building (for example, the upper beam 2a and the lower beam 2b);
When these support portions (for example, the upper support portion 6 and the lower support portion 7) are pivotally supported and supported, and the support portions (for example, the upper support portion 6 and the lower support portion 7) are displaced by vibration. An oscillating body 8 that oscillates about a substantially central portion between both pivotal portions 8e and 8f;
The rocking body 8 is provided at a position farther from the pivotal portions 8e and 8f with respect to a substantially central portion between the pivotal portions 8e and 8f, and the structural portion of the building (for example, the upper beam 2a). , Lower beam 2b and the like) and a damping member (for example, damping rubber 9) provided on at least one of the support portions (for example, the upper support portion 6 and the lower support portion 7),
The position of the pivot part 8e of the rocking body 8 can be changed.
In addition, as a damping member, the damping member which consists of a spring and a damper, viscoelastic materials, such as rubber | gum, an oil damper, etc. are used suitably, Furthermore, you may attenuate a vibration by friction.

  According to the first aspect of the present invention, the distance between the pivoting portions 8e and 8f can be changed by changing the position of the pivoting portion 8e of the oscillating body 8. Therefore, when the building is deformed by an external force, that is, the support portions (for example, the upper support portion 6 and the lower support portion 7) provided in the structure portion of the building (for example, the upper beam 2a, the lower beam 2b, etc.) are displaced. In this case, the amount of deformation of the damping member (for example, the damping rubber 9) is changed by changing the deflection width of the oscillating body 8 with respect to the displacement of the supporting portion (for example, the upper supporting portion 6 and the lower supporting portion 7). Can be adjusted. Further, since the swing width at the position of the swinging body 8 provided with the damping member (for example, the damping rubber 9) is larger than the swing width of the pivoting portions 8e and 8f, the damping member (for example, the damping rubber) Since the deformation of 9) can be amplified, the vibration control function can be used effectively from a small deformation of the building.

According to a second aspect of the present invention, for example, as shown in FIGS. 1 and 2, in the vibration damping device 1 according to the first aspect, the support portion (for example, the upper support portion 6) penetrates in the thickness direction. A plurality of supporting bolt holes (for example, upper supporting bolt holes 6a to 6c) are formed on an extension of a line connecting the pivoting portions 8e and 8f of the rocking body 8 when the rocking body 8 is stationary. Provided,
The swing body 8 has swing body bolt holes 8a to 8c penetrating in the thickness direction at positions corresponding to the plurality of support portion bolt holes (for example, the upper support bolt holes 6a to 6c). It is characterized by being provided.

  According to the second aspect of the present invention, any one of the pair of support portion bolt holes 6a to 6c provided in the support portion (for example, the upper support portion 6) and the support portion bolt holes 6a. The distance between the pivoting portions 8e and 8f can be easily changed by engaging with the rocker bolt holes 8a to 8c corresponding to .about.6c.

  As for invention of Claim 3, as shown, for example in FIG. 1, 2, in the damping device 1 of Claim 2, the said hole 6a-6c for support part bolts or the holes 8a-8c for rocking | fluctuation body bolts are provided. In the state in which the rocking body 8 is stationary, the swinging body 8 is an elongated hole that is long in a direction parallel to a line connecting the pivoting portions 8e and 8f.

  According to the third aspect of the present invention, the distance between the two joint portions 8e and 8f is obtained by the deformation of the building due to the external force and the displacement of the support portions (for example, the upper support portion 6 and the lower support portion 7). Even if it changes, it can prevent that a distortion | strain arises in a support part (for example, the upper support part 6, the lower support part 7) and the rocking body 8. FIG.

  According to a fourth aspect of the present invention, for example, as shown in FIGS. 3 and 4, in the vibration damping device 11 according to any one of the first to third aspects, the vibration damping member (for example, the vibration damping rubber 19). Are respectively provided at both end portions of the rocking body 18 and the structural portion of the building (for example, the upper beam 12a, the lower beam 12b, etc.).

  According to the fourth aspect of the present invention, since the damping members (for example, damping rubber 19) are provided at both ends of the rocking body 18, the damping function can be improved.

  As shown in FIGS. 6 and 7, for example, in the vibration damping panel P, the vibration damping device 31 according to any one of claims 1 to 4 is provided in a rectangular frame. It is characterized by.

  According to the fifth aspect of the present invention, the vibration damping panel P includes the vibration damping device 31 according to any one of the first to fourth aspects, and therefore, according to any one of the first to fourth aspects. Effects similar to those of the described invention can be obtained.

  According to the present invention, when the building is deformed by receiving an external force, it is possible to adjust the deformation amount of the damping member by changing the swing width of the rocking body with respect to the displacement amount of the support portion. In addition, the vibration control function can be used effectively from a small deformation of the building.

Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.
(First embodiment)
FIG. 1 shows a configuration of a first embodiment of a vibration damping device 1 according to the present invention, and FIG. 2 shows a configuration of a main part of the vibration damping device 1.

  As shown in FIG. 1, the vibration damping device 1 is incorporated in a frame surface surrounded by an upper beam 2a, a lower beam 2b, a column 3a, and an intermediate column 3b of a building, and the upper beam 2a, the column 3a, and the intermediate column An upper support portion 6 provided on 3b, a lower support portion 7 provided on the lower beam 2b, the column 3a, and the inter-column 3b, and an oscillating body 8 that is pivotally supported by the upper support portion 6 and the lower support portion 7. The vibration body 8 and a damping rubber 9 provided on the plate 4 described later are provided.

  The upper support portion 6 is formed of a substantially isosceles triangular plate-like iron plate, and is fixed so as to protrude downward from the upper beam 2a. That is, the upper support portion 6 has a plate 4 that integrally extends upward from a substantially central portion of the upper side thereof, and the upper end portion of the plate 4 is fixed to the upper beam 2a by a bolt. Further, brackets 3c and 3d are provided at the upper ends of the columns 3a and 3b, and both corners of the upper support 6 are fixed to the brackets 3c and 3d by bolts. In this way, the upper support 6 is fixed to the upper end of the column 3a, the upper end of the inter-column 3b, and the substantially central portion of the upper beam 2a.

  In addition, as shown in FIG. 2, three upper support bolt holes 6 a to 6 c that penetrate in the thickness direction are formed at the lower portion of the upper support 6. It is provided at equal intervals along the direction parallel to the line connecting the pivot portions 8e and 8f, that is, in the vertical direction.

As shown in FIG. 1, the lower support part 7 is comprised by the structural panel for construction of a substantially isosceles triangular plate shape, and is fixed so that it may protrude upwards from the lower beam 2b. That is, the lower support portion 7 has a frame 5 that integrally extends downward from the lower end portion thereof, and the lower end portion of the frame 5 is fixed to the lower beam 2b by bolts. In addition, brackets 3e and 3f are provided at the lower ends of the pillars 3a and 3b, respectively, and both corners of the frame 5 are fixed to the brackets 3e and 3f by bolts. In this way, the lower support portion 7 is fixed to the lower end portion of the column 3a, the lower end portion of the inter-column 3b, and the substantially central portion of the lower beam 2b.
The lower support portion 7 is formed by forming a substantially isosceles triangular frame by a plurality of iron frames and attaching a face material formed of a structural plywood to both sides of the frame.

  As shown in FIGS. 1 and 2, the lower support portion 7 is provided with a connecting plate 7a at the upper portion thereof, and the connecting plate 7a is provided with a lower support portion bolt hole 7b penetrating in the thickness direction. It has been.

  The vertical length of the lower support portion 7 is longer than the vertical length of the upper support portion 6, and the thickness of the lower support portion 7 is also thicker than the thickness of the upper support portion 6. Since the lower support portion 7 is a plate-like member in which face materials formed of structural plywood are attached to both surfaces of a frame body formed of an iron frame, the lower support portion 7 has extremely high rigidity.

  The rocking body 8 is constituted by a pair of hexagonal plate-like iron plates that are elongated in the vertical direction, and these iron plates are opposed to each other in parallel. In addition, at substantially the center portion of the rocking body 8, three rocking body bolt holes 8a to 8c penetrating in the thickness direction are provided at equal intervals in the vertical direction, and further below the rocking body 8 A lower bolt hole 8d is provided. These oscillating body bolt holes 8a to 8c correspond to the upper support portion bolt holes 6a to 6c of the upper support portion 6 when the oscillating body 8 is stationary, and when the oscillating body 8 is stationary. The hole is elongated in a direction parallel to a line connecting both pivotal portions 8e and 8f described later, that is, in the vertical direction.

In the state where the upper support portion 6 and the lower support portion 7 are sandwiched between a pair of iron plates, the swing body 8 is inserted through the pivot shaft into the swing body bolt hole 8c and the upper support portion bolt hole 6c. At the same time, the pivot shaft is inserted into the swing body lower bolt hole 8d and the lower support portion bolt hole 7b of the connecting plate 7a to be pivotally supported by the upper support portion 6 and the lower support portion 7. Further, the upper support bolt hole 6c and the swinging bolt bolt 8c, the lower support bolt hole 7b and the swinging lower bolt hole 8d inserted through these pivoting shafts are respectively connected to the pivoting portion 8e, It is 8f.
Depending on the amount of deformation of the building when an external force is applied, the pivot shaft is inserted into the upper support bolt hole 6a and the rocker bolt hole 8a, or the upper support bolt hole 6b and the rocker bolt hole 8b. By doing so, the position of the pivot part 8e can be changed, and the distance between the pivot parts 8e and 8f can be changed.
The bolt 8 g connects a pair of iron plates constituting the rocking body 8 and is inserted into a long hole 6 d provided in the upper support portion 6.

  The damping rubber 9 is molded into a rectangular plate shape, and is fixed to the upper end portion of the rocking body 8 and the plate 4 that fixes the upper beam 2 a and the upper support portion 6.

Next, the behavior of the vibration control device 1 when the building vibrates due to an external force such as an earthquake will be described.
First, when the building receives an external force such as an earthquake, the building vibrates, and the structural portion of the building is deformed. In that case, the upper beam 2a and the lower beam 2b are displaced to the left and right, and the column 2a and the intermediate column 2b are inclined in the horizontal direction, and accordingly, the upper support portion 6 and the lower support portion 7 are displaced to the left and right. Then, the pivot portions 8e and 8f that pivot the swinging body 8 to the upper support portion 6 and the lower support portion 7 are displaced to the left and right.

  When the pivoting portions 8e and 8f are displaced to the left and right, the swinging body 8 swings like a pendulum about the substantially central portion between the pivoting portions 8e and 8f. The shake is amplified and displaced. Accordingly, since the deformation of the vibration damping rubber 9 connecting the rocking body 8 and the upper support portion 6 can be amplified, the vibration damping function can be effectively used from the small deformation of the building structure.

  According to the vibration damping device 1 of the first embodiment described above, by changing the position of the pivoting portion 8e of the oscillating body 8, the distance between the pivoting portions 8e and 8f can be changed. Therefore, when the building is deformed by receiving an external force, that is, when the upper support 6 and the lower support 7 provided on the upper beam 2a, the lower beam 2b, the column 3a, and the inter-column 3b of the building are displaced, these upper supports are supported. The amount of deformation of the damping rubber 9 can be adjusted by changing the deflection width of the end of the rocking body 8 with respect to the amount of displacement of the portion 6 and the lower support portion 7. Further, since the swing width of the position of the swinging body 8 provided with the damping rubber 9 is larger than the swing width of the pivoting portions 8e and 8f, the deformation of the damping rubber 9 can be amplified. The vibration control function can be used effectively.

  Further, any one of the upper support part bolt holes 6a to 6c provided in the upper support part 6 and the swing body bolt holes 8a to 8c corresponding to the upper support part bolt holes 6a to 6c. The distance between both pivotal portions 8e and 8f can be easily changed.

  Furthermore, even if the distance between the pivoting portions 8e and 8f changes due to the deformation of the building due to external force and the displacement of the upper support portion 6 and the lower support portion 7, the upper support portion 6 and the lower support portion 7 It is possible to prevent the oscillating body 8 from being distorted.

  In the first embodiment described above, the oscillator bolt holes 8a to 8c are elongated in the vertical direction, but the upper support bolt holes 6a to 6c are elongated in the vertical direction. It may be a hole. Further, the vibration damping rubber 9 is fixed not to the upper end portion of the rocking body 8 but to a substantially central portion between the pivoting portions 8e and 8f as long as it is located away from the pivoting portions 8e and 8f. Good. In addition to the damping rubber 9, a damping member such as an oil damper may be provided on the rocking body 8 and the upper beam 2a.

(Second Embodiment)
FIG. 3 shows the configuration of the second embodiment of the vibration damping device 11 according to the present invention, and FIG. 4 shows the configuration of the main part of the vibration damping device 11.

  As shown in FIG. 3, the vibration damping device 11 is incorporated in a frame surface surrounded by an upper beam 12 a, a lower beam 12 b, and a pair of columns 13 of a building. More specifically, a pair of reinforcing members 13a that are long in the vertical direction are attached to the pair of pillars 13 so as to be in contact with the pillars 13, and are in contact with the reinforcing members 13a. In this state, a pair of long woods 13b that are long in the vertical direction are attached to face each other. Further, the vibration damping device 11 includes a pair of vertical frames 14 provided facing the inside of the pair of woods 13b, a pair of horizontal frames 15 provided facing both ends in the vertical direction of the vertical frames 14, A pair of support portions 16, 17 provided to face the substantially central portion of the vertical frame 14, a rocking body 18 that is pivotally supported by the support portions 16, 17, and the rocking body 18 and the horizontal frame 15. And vibration damping rubbers 19a and 19b provided on both sides.

  The pair of vertical frames 14 are arranged in parallel with each other, and each of the vertical frames 14 is composed of a strip-like mounting plate 14a and a strip-like standing plate 14b erected at right angles to the mounting plate 14a. It is formed in a T shape. The attachment plate 14a is attached to the inside of the wood 13b in a state of being in contact with the wood 13b. Moreover, the support parts 16 and 17 mentioned later are attached to the standing board 14b.

The pair of horizontal frames 15 are arranged in parallel with each other and each have a strip-shaped horizontal outer peripheral plate 15a. A pair of plates 15b are provided at both ends of the outer peripheral plate 15a so as to face each other in the thickness direction, and the ends of the vertical frames 14 are inserted between the base ends of the plates 15b, respectively. 14 and the lateral frame 15 are connected by a bolt.
The vertical frame 14 and the horizontal frame 15 form a rectangular frame.

  A base end portion of a T-shaped fixing member 15c in plan view is inserted between the front end portions of the plate 15b and fixed by welding or the like. A damping box 15d that opens in a direction opposite to the outer peripheral plate 15a is fixed between the fixing plates at the distal ends of the fixing members 15c. The fixing plate of the fixing member 15c is in contact with the outer peripheral surface of the vibration damping box 15d.

  Each of the support portions 16 and 17 is formed of a pair of substantially rectangular plate-like iron plates that are long in the vertical direction, and these iron plates are opposed to each other in parallel. Further, the support portions 16 and 17 are fixed to the vertical frame 14 with bolts in a state where a substantially central portion of the vertical frame 14 is sandwiched between a pair of iron plates constituting the support portions 16 and 17.

  As shown in FIGS. 3 and 4, there are three support portion bolt holes 16 a to 16 c and 17 a to 17 c penetrating in the thickness direction at the substantially central portions of the support portions 16 and 17, and an oscillator 18 described later. In a stationary state, they are provided at equal intervals along a direction parallel to a line connecting both pivotal portions 18d and 18e described later, that is, in the horizontal direction.

  The oscillating body 18 is formed of a substantially rectangular plate-like iron plate that is elongated in the vertical direction, and six oscillating body bolt holes 18a to 18f that penetrate in the thickness direction are formed at the substantially central portion. Is provided along a direction parallel to a line connecting both pivotal portions 18d and 18e described later, that is, in a horizontal direction. The swing body bolt holes 18a to 18c correspond to the support section bolt holes 16a to 16c of the support section 16 in a state where the swing body 18 is stationary, and the swing body bolt holes 18d to 18f are formed by the swing body 18. In the stationary state, they correspond to the support portion bolt holes 17a to 17c of the support portion 17, respectively. Further, the oscillating body bolt holes 18a to 18c are elongated holes that are long in the direction parallel to the line connecting both the pivot portions 18d and 18e, that is, in the horizontal direction.

The oscillating body 18 is inserted between the support part bolt holes 16b and 17b and the oscillating body bolt holes 18b and 18e while being sandwiched between a pair of iron plates constituting the support parts 16 and 17, respectively. The pair of support portions 16 and 17 are pivotally supported. Further, the support portion bolt hole 16b and the swing body bolt hole 18b, and the support portion bolt hole 17b and the swing body bolt hole 18e inserted through these pivot shafts are respectively connected to the pivot portion connection portion 18g, 18h.
Depending on the amount of deformation of the building when an external force is applied, the pivot shaft is inserted into the support bolt hole 16a and the rocker bolt hole 18a, and the pivot is inserted into the support bolt hole 17a and the rocker bolt hole 18f. The connecting shaft is inserted, or the pivot shaft is inserted into the support portion bolt hole 16c and the swing body bolt hole 18c, and the pivot shaft is inserted into the support portion bolt hole 17c and the swing body bolt hole 18e. Thus, the positions of the pivot portions 18g and 18h can be changed, and the distance between the pivot portions 18g and 18h can be changed.

  The damping rubbers 19a and 19b are formed in a rectangular plate shape, and are fixed to the plates 15b attached to both ends of the swinging body 18 in the vertical direction and the inner walls in the damping box 15d of the lateral frame 15, respectively. Has been.

Next, the behavior of the vibration control device 11 when the building vibrates due to an external force such as an earthquake will be described.
First, when the building receives an external force such as an earthquake, the building vibrates, and the structural portion of the building is deformed. That is, the upper beam 12a and the lower beam 12b are displaced to the left and right, and the pair of pillars 13 are inclined in the horizontal direction. Along with this, the rectangular frame formed by the vertical frame 14 and the horizontal frame 15 is a parallelogram. The horizontal frame 15 is displaced left and right, and the vertical frame 14 is inclined in the horizontal direction.

  Then, the pair of support portions 16 and 17 are displaced so as to be obliquely separated from each other, and the support portions 16 and 17 are displaced, so that the rocking body 18 is substantially at the central portion between both the pivot portions 18g and 18h. And swinging like a pendulum, the both ends of the rocking body 18 are displaced by amplifying the vibration. Accordingly, since the deformation of the vibration damping rubbers 19a and 19b connecting the both ends of the rocking body 18 and the vibration damping box 15d of the horizontal frame 15 can be amplified, the vibration damping function is effective from the small deformation of the building structure. Can work on.

  According to the second embodiment described above, the same effects as those of the first embodiment can be obtained, and the vibration damping rubbers 19a and 19b are provided at both ends of the rocking body 18, respectively. Can be improved.

  In the second embodiment described above, the oscillator bolt holes 18a to 18c are elongated in the horizontal direction. However, the oscillator bolt holes 18d to 18f and the support bolt holes 16a to 16c are used. Alternatively, the support bolt holes 17a to 17c may be elongated holes that are long in the horizontal direction. Further, the damping rubbers 19a and 19b are fixed not to the upper and lower ends of the swinging body 18, but to the approximate center between the pivoting portions 18g and 18h as long as they are separated from the pivoting portions 18g and 18h. May be. Moreover, you may provide damping members, such as an oil damper, other than damping rubber 19a, 19b.

(Third embodiment)
FIG. 5 shows the configuration of the third embodiment of the vibration damping device 21 according to the present invention.

  As shown in FIG. 5, the vibration damping device 21 is incorporated in a frame surface surrounded by the upper beam 22a, the lower beam 22b, and the pair of pillars 23 of the building, and is an upper support portion provided on the upper beam 22a. 26, a lower support portion 27 provided on the lower beam 22b, a swinging body 28 pivotally supported by the upper support portion 26 and the lower support portion 27, and the swinging body 28, the upper support portion 26 and the lower support. And oil dampers 29a and 29b provided in the portion 27.

  The upper support portion 26 is configured by a structural panel for construction having a substantially isosceles triangular plate shape, and is fixed so as to protrude downward from the upper beam 22a. That is, the upper support portion 26 has a fixing portion 26d that protrudes upward from both end portions of the upper side, and the upper end portion of the fixing portion 26d is fixed to the upper beam 22a by welding or the like. In addition, oil dampers 29a, which will be described later, are fixed to the opposing surfaces of the pair of fixing portions 26d.

  Further, at the substantially central portion of the upper support portion 26, three upper support portion bolt holes 26a to 26c penetrating in the thickness direction are provided with both pivoted portions 28g, which will be described later, in a state where the swinging body 28 described later is stationary. It is provided at equal intervals along the direction parallel to the line connecting 28h, that is, along the vertical direction.

  The lower support portion 27 is constituted by a structural panel for construction having a substantially isosceles triangular plate shape, and is fixed so as to protrude upward from the lower beam 22b. That is, the lower support portion 27 has a fixing portion 27d that protrudes downward from both ends of the lower side, and the lower end portion of the fixing portion 27d is fixed to the lower beam 22b by welding or the like. In addition, oil dampers 29b, which will be described later, are fixed to the opposing surfaces of the pair of fixing portions 27d.

  In addition, at the substantially central portion of the lower support portion 27, three upper support portion bolt holes 27a to 27c penetrating in the thickness direction are provided with both pivot portions 28g, which will be described later, in a state where the swinging body 28 described later is stationary. It is provided at equal intervals along the direction parallel to the line connecting 28h, that is, along the vertical direction.

  The rocking body 28 is constituted by a pair of substantially rectangular plate-like iron plates that are elongated in the vertical direction, and these iron plates are opposed to each other in parallel. In addition, six rocker bolt holes 28a to 28f penetrating in the thickness direction at a substantially central portion of the rocking body 28 are lines connecting both pivotal portions 28g and 28h described later when the rocking body 28 is stationary. It is provided along the direction parallel to the vertical direction, that is, the vertical direction. The swing body bolt holes 28a to 28c correspond to the support section bolt holes 26a to 26c of the support section 26 when the swing body 28 is stationary, respectively. In the stationary state, they correspond to the support portion bolt holes 27a to 27c of the support portion 27, respectively. Further, the oscillating body bolt holes 28a to 28c are elongated holes that are elongated in a direction parallel to a line connecting both pivot portions 28g and 28h described later, that is, in the vertical direction.

The oscillating body 28 has a pivot shaft inserted through the upper support bolt hole 26c and the oscillating body bolt hole 28c with the upper support portion 26 and the lower support portion 27 sandwiched between a pair of iron plates, and the lower support portion. The pivot shaft is inserted into the bolt hole 27c and the rocking body bolt hole 28d so that the upper support portion 26 and the lower support portion 27 are pivotally supported. Further, the upper support bolt hole 26c and the rocker bolt hole 28c inserted through these pivot shafts, and the lower support bolt hole 27c and the rocker bolt hole 28d are pivoted portions 28g and 28h, respectively. Is forming.
Depending on the amount of deformation of the building when an external force is applied, the pivot shaft is inserted into the upper support bolt hole 26a and the rocker bolt hole 28a, and the lower support bolt hole 27a and the rocker bolt hole 28f. The pivot shaft is inserted through the pivot shaft, or the pivot shaft is inserted into the upper support bolt hole 26b and the rocker bolt hole 28b, and the pivot shaft is pivoted into the lower support bolt hole 27c and the rocker bolt hole 28d. Is inserted, the positions of the pivot portions 28g and 28h can be changed, and the distance between the pivot portions 28g and 28h can be changed.

  The oil dampers 29a are fixed to both side surfaces of the upper end portion of the rocking body 28 and the inner side surface of the fixing portion 26d of the upper support portion 26, respectively. The oil dampers 29b are fixed to both side surfaces of the lower end portion of the rocking body 28 and the inner side surface of the fixing portion 27d of the lower support portion 27, respectively.

Next, the behavior of the vibration control device 21 when the building vibrates due to an external force such as an earthquake will be described.
First, when the building receives an external force such as an earthquake, the building vibrates, and the structural portion of the building is deformed. In that case, the upper beam 22a and the lower beam 22b are displaced to the left and right and the column 23 is inclined in the lateral direction, and accordingly, the upper support portion 26 and the lower support portion 27 are displaced to the left and right. Then, the pivot portions 28g and 28h that pivot the swinging body 28 to the upper support portion 26 and the lower support portion 27 are displaced to the left and right.

  When the pivoting portions 28g and 28h are displaced to the left and right, the swinging body 28 swings like a pendulum around the substantially central portion between the pivoting portions 28g and 28h. The shake is amplified and displaced. Accordingly, the deformation of the oil damper 29a connecting the rocking body 28 and the upper support portion 26 and the oil damper 29b connecting the rocking body 28 and the lower support portion 27 can be amplified, so that The vibration control function can work effectively from a small deformation.

  According to the third embodiment described above, the same effect as in the second embodiment can be obtained.

  In the third embodiment, the oscillator bolt holes 28a to 28c are elongated in the horizontal direction. However, the oscillator bolt holes 28d to 28f and the upper support bolt holes 26a to 26c are used. 26c or the lower support bolt holes 27a to 27c may be elongated in the horizontal direction. Further, the oil dampers 29a and 29b are provided not at the upper and lower ends of the swinging body 28 but at any position away from the pivotal portions 28g and 28h with respect to the substantially central portion between the pivotal portions 28g and 28h. Also good. Further, in addition to the oil dampers 29a and 29b, damping members such as damping rubber may be provided on the swing body 28, the upper beam 22a, and the lower beam 22b.

(Fourth embodiment)
FIG. 6 shows the configuration of the fourth embodiment of the vibration damping device 31 according to the present invention, and FIG. 7 shows the configuration of the main part of the vibration damping device 31.

  As shown in FIG. 5, the vibration damping device 31 is incorporated in a vibration damping panel P that forms a wall of a building. The vibration control panel P is formed by connecting an upper small wall panel 32a and a lower waist wall panel 32b with left and right column members 33, and a rectangular opening P1 is formed at a substantially central portion thereof. ing. A vibration damping device 31 is attached to the inside of the opening P1, and the vibration damping device 31 includes a pair of vertical and horizontal frames 34 and 35 provided on the inner peripheral surface of the opening P1, and each of the vertical frames 34. A pair of support portions 36, 37 that are provided to face each other, a swinging body 38 that is pivotally supported by the support portions 36, 37, and a damping rubber 39 a that is provided to the swinging body 38 and the lateral frame 35. 39b.

  The pair of vertical frames 34 are arranged in parallel with each other, and each of the vertical frames 34 includes a belt-plate-like mounting plate 34a and a belt-plate-like standing plate 34b erected at a right angle to the mounting plate 34a. It is formed in a T shape. The attachment plate 34a is attached to the column member 33 in a state where it is in contact with the inner peripheral surface of the rectangular opening P1. Moreover, the support parts 36 and 37 mentioned later are attached to the standing board 34b.

  The pair of horizontal frames 35 are arranged in parallel with each other, and each have a band plate-like attachment plate 35a. The attachment plate 35a is attached to the small wall panel 32a and the waist wall panel 32b in a state where the attachment plate 35a is in contact with the inner peripheral surface of the rectangular opening P1. The mounting plate 35a is provided with a pair of plates 35b opposed to each other in the thickness direction at both ends thereof, and the ends of the vertical frames 34 are inserted between the base ends of the plates 35b, respectively. The vertical frame 34 and the horizontal frame 35 are connected by bolts.

  A base end portion of a T-shaped fixing member 35c in plan view is inserted between the front end portions of the plate 35b and fixed by welding or the like. A damping box 35d that opens to the inside of the opening P1 is fixed between the fixing plates at the distal ends of the fixing members 35c. The fixing plate of the fixing member 35c is in contact with the outer peripheral surface of the vibration damping box 35d.

  As shown in FIGS. 6 and 7, the support portions 36 and 37 are formed by a pair of substantially isosceles triangular plate-like iron plates, and these iron plates are opposed to each other in parallel. Further, the support portions 36 and 37 are fixed to the vertical frame 34 in a state where the vertical frame 34 is sandwiched between a pair of iron plates so as to protrude inside the opening P1.

  Three support portion bolt holes 36a to 36c and 37a to 37c, which penetrate in the thickness direction, are provided on the projecting portion side of the substantially central portion of the support portions 36 and 37, respectively, in a state where a rocking body 38 described later is stationary. Are provided at equal intervals in the direction parallel to the line connecting the pivoted portions 38g and 38h, that is, in the horizontal direction.

  The oscillating body 38 is formed of a diamond plate-like iron plate that is elongated in the vertical direction, and six oscillating body bolt holes 38a to 38f that penetrate in the thickness direction are provided at the substantially central portion. In a stationary state, it is provided along a direction parallel to a line connecting both pivotal portions 38g and 38h described later, that is, a horizontal direction. The swing body bolt holes 38a to 38c correspond to the support portion bolt holes 36a to 36c of the support portion 36 in a state where the swing body 38 is stationary, and the swing body bolt holes 38d to 38f correspond to the swing body 38. In the stationary state, they correspond to the support portion bolt holes 37a to 37c of the support portion 37, respectively. Further, the oscillating body bolt holes 38a to 38c are elongated holes extending in a direction parallel to a line connecting both pivotal portions 38g and 38h described later, that is, in the horizontal direction.

The oscillating body 38 is sandwiched between a pair of iron plates that constitute the support portions 36 and 37, and the pivot shaft is inserted into the support portion bolt holes 36a and 37a and the oscillating body bolt holes 38a and 38f. The pair of support portions 36 and 37 are pivotally supported. Further, the support portion bolt hole 36a and the swinging body bolt hole 38a inserted through these pivot shafts, and the support portion bolt hole 37a and the swinging body bolt hole 38f are respectively connected to the pivoting portion pivoting portion 38g, 38h is formed.
Depending on the amount of deformation of the building when an external force is applied, the pivot shaft is inserted into the support bolt hole 36b and the rocker bolt hole 38b, and the pivot is inserted into the support bolt hole 37b and the rocker bolt hole 38e. The connecting shaft is inserted, or the pivot shaft is inserted into the support portion bolt hole 37c and the swing body bolt hole 38c, and the pivot shaft is inserted into the support portion bolt hole 37c and the swing body bolt hole 38d. Thus, the positions of the pivot portions 38g and 38h can be changed, and the distance between the pivot portions 38g and 38h can be changed.

  The damping rubbers 39a and 39b are molded in a rectangular plate shape, and are respectively provided on plates 35b attached to both ends of the swinging body 38 in the vertical direction and inner walls in the damping box 35d of the lateral frame 35. It is fixed.

Next, the behavior of the vibration damping device 31 and the vibration damping panel P when the building vibrates due to an external force such as an earthquake will be described.
First, when the building receives an external force such as an earthquake, the building vibrates, and the structural portion of the building is deformed. That is, the vibration control panel P is deformed into a parallelogram, and accordingly, a rectangular frame formed by the vertical frame 34 and the horizontal frame 35 is deformed into a parallelogram, and the horizontal frame 35 is displaced to the left and right and is vertically The frame 34 is inclined in the lateral direction.

  Then, the pair of support portions 36 and 37 are displaced so as to be obliquely separated from each other, and the support portions 36 and 37 are displaced, so that the rocking body 38 is substantially at the central portion between both the pivot portions 38g and 38h. The end of the rocking body 38 is displaced by amplifying the vibration. Therefore, the deformation of the damping rubbers 39a and 39b connecting both ends of the rocking body 38 and the damping box 35d of the horizontal frame 35 can be amplified, so that the damping function is effective from the small deformation of the building structure. Can work on.

  According to the above fourth embodiment, the same effects as those of the second and third embodiments can be obtained.

  In the fourth embodiment described above, the oscillator bolt holes 38a to 38c are elongated holes in the horizontal direction, but the oscillator bolt holes 38d to 38f and the support part bolt holes 36a to 36c are used. Alternatively, the support bolt holes 37a to 37c may be elongated holes that are elongated in the horizontal direction. Further, the damping rubbers 39a and 39b are fixed not to the upper and lower end portions of the swinging body 38 but to the substantially central portion between both the pivoting portions 38g and 38h as long as they are separated from the pivoting portions 38g and 38h. May be. In addition to the damping rubbers 39a and 39b, a damping member such as an oil damper may be provided.

It is a front view which shows the structure of 1st Embodiment of the damping device which concerns on this invention. It is a front view which shows the principal part of 1st Embodiment of a damping device. It is a front view which shows the structure of 2nd Embodiment of the damping device which concerns on this invention. It is a front view which shows the principal part of 2nd Embodiment of a damping device. It is a front view which shows the structure of 3rd Embodiment of the damping device which concerns on this invention. It is a front view which shows the structure of a damping panel provided with the damping device of 4th Embodiment. It is a front view which shows the principal part of a damping panel provided with the damping device of 4th Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Damping device 2a Upper beam 2b Lower beam 3a Column 3b Intermediary column 3c-3f Bracket 4 Plate 5 Frame 6 Upper support part 6a-6c Upper support part bolt hole 6d Long hole 7 Lower support part 7a Connecting plate 7b Lower support part bolt Hole 8 oscillating body 8 a to 8 c oscillating body bolt hole 8 d oscillating body lower bolt hole 8 e, 8 f pivoting portion 8 g bolt 9 damping rubber
11 Damping device 12a Upper beam 12b Lower beam 13 Column 13a Reinforcement material 13b Wood 14 Vertical frame 14a Mounting plate 14b Standing plate 15 Horizontal frame 15a Mounting plate 15b Plate 15c Fixing member 15d Damping boxes 16, 17 Supporting portions 16a to 16c Support part bolt holes 17a to 17c Support part bolt holes 18 Oscillators 18a to 18f Oscillator body bolt holes 18g and 18h Pivoting parts 19a and 19b Damping rubber 21 Damping device 22a Upper beam 22b Lower beam 23 Column 26 Above Support part 26a-26c Upper support part bolt hole 27 Lower support part 27a-27c Lower support part bolt hole 28 Oscillator 28a-28f Oscillator bolt hole 28g, 28h Pivoting part 29a, 29b Oil damper
31 Damping device 32a Small wall panel 32b Waist wall panel 33 Column member 34 Vertical frame 34a Mounting plate 34b Standing plate 35 Horizontal frame 35a Mounting plate 35b Plate 35c Fixing member 35d Damping boxes 36, 37 Supporting parts 36a to 36c Supporting part Bolt hole 37a-37c Support part bolt hole 38 Oscillator 38a-38f Oscillator bolt hole 38g, 38h Pivoting part 39 Damping rubber P Damping panel P1 Opening

Claims (5)

In the vibration control device attached to the building,
A pair of support portions provided opposite to the structure portion of the building;
An oscillating body that is pivotally supported by each of these support portions, and that swings about a substantially central portion between both pivotal portions when the support portion is displaced by vibration;
The swinging body is provided at a position farther from the pivoting portion than the pivoting portion with respect to the substantially central portion between the pivoting portions, and is provided at at least one of the structural portion of the building and the support portion. A member, and
A vibration damping device characterized in that the position of the pivoting portion of the rocking body can be changed. In the support portion, a plurality of support portion bolt holes penetrating in the thickness direction are provided on an extension of a line connecting both pivot portions of the rocking body when the rocking body is stationary,
2. The vibration damping device according to claim 1, wherein the rocking body is provided with rocking body bolt holes penetrating in a thickness direction at positions corresponding to the plurality of support portion bolt holes. apparatus.   3. The support part bolt hole or the rocking body bolt hole is a long hole that is long in a direction parallel to a line connecting the pivoting parts when the rocking body is stationary. The vibration control device described in 1.   The said damping member is each provided in the both ends of the said rocking | swiveling body, and the structure part of the said building, The damping device as described in any one of Claims 1-3 characterized by the above-mentioned.   A vibration damping panel comprising the vibration damping device according to any one of claims 1 to 4 in a rectangular frame.

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