JP2017078452A - Vibration control device and structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure aseismic performance while achieving a low cost.SOLUTION: A vibration control device 10 which is installed between a pair of reinforcement beams 4 and 4 positioned one above the other comprises: an upper bracket 12 which is connected to an upper reinforcement beam 4 and downwardly extended; a lower bracket 13 which is connected to a lower reinforcement beam 4 and upwardly extended; a damper body 21 which is installed between the upper bracket 12 and the lower bracket 13 and attenuates relative displacement, in a horizontal direction, therebetween; and a support member 32 which is longer than the damper body 21 in a vertical direction with an upper edge section 32a thereof connected to the upper reinforcement beam 4 and a lower edge section 32b thereof connected to the lower reinforcement beam 4.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a vibration damping device and a structure that improve the vibration damping performance of a building.

Conventionally, between a pair of upper and lower mounting members, a viscoelastic damper (vibration damping member) provided between a pair of upper and lower mounting members, and a pair of upper and lower mounting members as described in Patent Document 1 below, for example And a vertical support member that supports a vertical load acting in the vertical direction is known.
According to such a configuration, a force in the bending direction acts on the upper and lower ends of the vertical support member when relative displacement of the upper and lower mounting members occurs. In order to release the force in the bending direction, in the configuration disclosed in Patent Document 1, the vertical support members are attached to the upper and lower attachment members via spherical plain bearings.

Japanese Patent No. 5535662

  By the way, in the structure disclosed by the said patent document 1, since a spherical plain bearing is provided in the up-and-down edge part of an up-down direction support member, cost starts.

  This invention is made | formed in view of the situation mentioned above, Comprising: It aims at providing the damping device and structure which can ensure seismic performance, being low-cost.

In order to solve the above problems, the present invention proposes the following means.
The vibration damping device according to the present invention is a vibration damping device installed between a pair of horizontal members positioned above and below each other, and is joined to the upper horizontal member and extends downward, and the lower bracket A lower bracket which is joined to a horizontal member and extends upward; a damper which is provided between the upper bracket and the lower bracket and damps a relative displacement in a horizontal direction between the upper bracket and the lower bracket; and And a vertical load support member that is long in the vertical direction and has an upper end portion coupled to the upper horizontal member and a lower end portion coupled to the lower horizontal member.

In this case, between the pair of horizontal members positioned above and below, the damper is provided between the upper bracket extending downward from the upper horizontal member and the lower bracket extending upward from the lower horizontal member. The vertical dimension can be reduced. Thereby, at the time of an earthquake etc., the horizontal relative displacement of the upper horizontal member and lower horizontal member transmitted via an upper bracket and a lower bracket can be attenuated efficiently.
Further, since the vertical load support member is longer than the vertical dimension of the damper, the vertical load support member is joined to the upper horizontal member at the upper end of the vertical load support member and to the lower horizontal member at the lower end. The displacement angle in the member can be reduced. Therefore, it is not necessary to use costly spherical plain bearings or the like at the upper end and lower end of the vertical load support member.

  Further, a gusset plate to which the vertical load support member is coupled is integrally provided on each of the upper horizontal member and the lower horizontal member, and the gusset plate provided on the upper horizontal member is The gusset plate provided on the lower horizontal member has an upper coupling portion to which the upper end portion of the vertical load support member is coupled at a position above the damper, and the vertical load supporting member is disposed at a position below the damper at the vertical position. You may make it have the lower coupling | bond part to which the said lower end part of a load support member is couple | bonded.

In this case, the upper and lower ends of the vertical load support member are firmly coupled to the upper and lower horizontal members by attaching the vertical load support members via gusset plates provided integrally with the upper and lower horizontal members. Can do.
Moreover, since the upper and lower gusset plates have an upper coupling portion and a lower coupling portion on the vertical load support member side with respect to the upper and lower horizontal members, the vertical load support member can be easily coupled.

  The vertical load support members may be provided on both sides of the gusset plate sandwiched in the direction in which the horizontal member extends.

  In this case, by arranging the vertical load support members on both sides of the gusset plate and increasing the number of vertical load support members, the vertical load can be dispersed and supported by the plurality of vertical load support members. Therefore, the vertical load supported by each of the vertical load support members is reduced, and each of the vertical load support members can be thinned. Thereby, the cross-sectional dimension in the horizontal surface of a damping device can be made small.

  Moreover, the vertical support part comprised by the said gusset plate and the said vertical load support member may be made to be located in the displacement absorption direction center part of the said damper.

  In this case, it is possible to suppress an eccentric force from being applied to the vertical load support member by suppressing the vertical support portion from being offset from the central portion in the displacement absorption direction of the damper with respect to the damper.

  The upper bracket and the lower bracket have a cross-sectional H shape having a web portion and a flange portion provided orthogonal to both sides of the web portion, and at least a part of the vertical load support member is You may make it arrange | position in the space pinched | interposed into the said flange part of the both sides of a web part.

  In this case, the vertical load support member is arranged by disposing at least a part of the vertical load support member in the space between the flange portions on both sides of the web portion with respect to the upper bracket and the lower bracket having an H-shaped cross section. The protrusion dimension in the direction away from the surface of the web portion can be suppressed. Thereby, the cross-sectional dimension in the horizontal surface of a damping device can be made small.

  The vertical load support members may be provided on both sides of the horizontal member sandwiched in a direction intersecting the direction in which the horizontal member extends.

  In this case, by arranging the vertical load support members on both sides of the horizontal member and increasing the number of vertical load support members, the vertical load can be dispersed and supported by the plurality of vertical load support members. Therefore, the vertical load supported by each of the vertical load support members is reduced, and each of the vertical load support members can be thinned. Thereby, the cross-sectional dimension in the horizontal surface of a damping device can be made small.

  The damper may be a steel damper.

  In this case, by using a steel damper as the damper, it is possible to make it less susceptible to thermal effects than when the damper is a viscoelastic damper. In other words, when the ambient temperature rises, the viscoelastic damper softens the viscous body that absorbs vibration energy and decreases its energy absorption capacity, whereas the steel damper does not have a viscous body, so the ambient temperature rises. Not affected. Therefore, even when the vibration control device is provided outside the building, high vibration resistance can be reliably maintained.

  A structure according to the present invention includes a plurality of horizontal structures provided at intervals in the vertical direction, and the vibration damping device as described above provided between horizontal members in the horizontal structures positioned above and below each other. It is characterized by providing.

  In this case, in the event of an earthquake or the like, the relative displacement in the horizontal direction can be efficiently attenuated by the vibration control device. Further, it is not necessary to use costly spherical plain bearings or the like at the upper end portion and the lower end portion of the vertical load support member constituting the vibration damping device.

  According to the vibration damping device of the first aspect, since it is not necessary to employ a spherical plain bearing for the vertical load support member, it is possible to ensure earthquake resistance performance at a low cost.

  According to the vibration damping device of the second aspect, the upper and lower ends of the vertical load support member can be firmly and easily coupled to the upper and lower horizontal members by providing the gusset plates on the upper and lower horizontal members. .

  According to the vibration damping device of the third aspect, each of the vertical load support members can be thinned. Thereby, the cross-sectional dimension in the horizontal plane of the vibration damping device can be reduced, and the installation position of the vibration damping device is restricted, the appearance becomes a sword, and the visual field is prevented from being obstructed by the vibration damping device. It becomes possible.

  According to the vibration damping device of the fourth aspect, since it is possible to suppress the eccentric load from being applied to the vertical load support member, it is possible to suppress the bending moment from acting on the upper and lower ends of the vertical load support member, and to reduce the vertical load. It can be supported efficiently.

  According to the vibration damping device of the fifth aspect, the cross-sectional dimension in the horizontal plane of the vibration damping device can be reduced. As a result, it is possible to prevent the installation position of the vibration damping device from being restricted, the appearance to be stabbed, and the visual field from being obstructed by the vibration damping device.

  According to the vibration damping device of the sixth aspect, each of the vertical load support members can be thinned. Thereby, the cross-sectional dimension in the horizontal plane of the vibration damping device can be reduced, and the installation position of the vibration damping device is restricted, the appearance becomes a sword, and the visual field is prevented from being obstructed by the vibration damping device. It becomes possible.

  According to the vibration damping device of the seventh aspect, high vibration resistance can be reliably maintained even when the vibration damping device is provided outside the building.

  According to the structure of the eighth aspect, since it is not necessary to employ a spherical plain bearing for the vertical load support member, it is possible to ensure earthquake resistance performance at a low cost.

It is a perspective view showing the outline of the installation structure to the frame of the building of the damping device concerning one embodiment of the present invention. It is a front view which shows the structure of the damping device shown in FIG. It is AA arrow sectional drawing of the damping device shown in FIG. FIG. 3 is a cross-sectional view of the vibration damping device shown in FIG. It is a front view which shows the damper apparatus which comprises the damping device shown in FIG.

Hereinafter, a vibration damping device according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing an outline of an installation structure of a vibration damping device according to an embodiment of the present invention in a building frame. FIG. 2 is a front view showing the configuration of the vibration damping device shown in FIG. FIG. 3 is a cross-sectional view of the vibration damping device shown in FIG. 4 is a cross-sectional view of the vibration damping device shown in FIG. FIG. 5 is a front view showing a damper device that constitutes the vibration damping device shown in FIG. 2.
As shown in FIG. 1, a building housing (structure) 1 is provided with a plurality of horizontal structures 2 such as balconies projecting outward from the outer surface 1 a at intervals in the vertical direction. Each horizontal structure 2 has, for example, a rectangular shape in plan view, and includes a reinforced concrete slab, a truss assembled in a horizontal plane, and the like. In this embodiment, the horizontal structure 2 is horizontally laid between the side beams 3 and 3 extending in a direction orthogonal to the outer surface 1 a of the housing 1 and the end portions of the side beams 3 and 3. A reinforcing beam (horizontal member) 4 arranged in parallel with 1a, and brace members 5 and 5 installed obliquely between the frame beam 1b and the reinforcing beam 4 provided along the outer surface 1a of the frame 1; It is equipped with.
Here, the reinforcing beam 4 is so-called H steel, and includes a web 4a positioned in a vertical plane and flanges 4b positioned in the horizontal plane above and below the web 4a.

  A vibration damping device 10 is provided between the horizontal structures 2 and 2 positioned above and below each other outside the housing 1. Here, the vibration damping device 10 is disposed in each corner 2c on the side separated from the outer surface 1a of the housing 1 in each horizontal structure 2.

  As shown in FIGS. 2 to 4, each damping device 10 includes a damper portion 11 that absorbs energy of horizontal relative displacement caused by an earthquake or the like generated between the horizontal structures 2 and 2 positioned above and below, And a vertical support portion 30 that supports a load in the vertical direction between the horizontal structures 2 and 2 located in the vertical direction.

  The damper portion 11 includes an upper bracket 12 that hangs downward from the reinforcing beam 4 of the upper horizontal structure 2, a lower bracket 13 that protrudes upward from the reinforcing beam 4 of the lower horizontal structure 2, And a damper device 20 provided between the upper bracket 12 and the lower bracket 13.

The upper bracket 12 and the lower bracket 13 are each formed from, for example, an H-shaped steel 15. The H-shaped steel 15 includes a plate-like web portion 15a and flange portions 15b that are provided at both ends of the web portion 15a and are formed orthogonally to the web portion 15a in a T-shape. The upper bracket 12 and the lower bracket 13 are provided such that the H-shaped steel 15 extends in the vertical direction and the flange portion 15b is positioned in the same vertical plane as the web 4a of the reinforcing beam 4. The upper end 12a of the upper bracket 12 is integrally joined to the lower flange 4b of the reinforcing beam 4 constituting the upper horizontal structure 2 by welding or the like. The lower end 13a of the lower bracket 13 is integrally joined to the upper flange 4b of the reinforcing beam 4 constituting the lower horizontal structure 2 by welding or the like.
The lower end portion 12b of the upper bracket 12 and the upper end portion 13b of the lower bracket 13 are opposed to each other with a predetermined dimension, for example, about 600 mm, in the vertical direction.

  As shown in FIG. 5, the damper device 20 is a steel damper, and includes a damper main body (damper) 21 and attachment members 22 respectively provided above and below the damper main body 21.

  The damper main body 21 is, for example, a steel damper having a strip shape or a plate shape extending in the vertical direction, and is formed of a steel material having a yield point lower than that of the housing 1, the upper bracket 12, and the lower bracket 13. Here, the damper main body 21 may have an appropriate shape, material, and structure as long as it has a required vibration energy absorption performance.

  The attachment member 22 connects the lower end portion 12b of the upper bracket 12 and the damper main body 21, and the upper end portion 13b of the lower bracket 13 and the damper main body 21 respectively. In this embodiment, the attachment members 22 are provided on both sides in the width direction of the damper main body 21, respectively, and are provided in a belt-like attachment member 22A that is long in the vertical direction and in the center in the width direction of the damper main body 21, and are rectangular in the width direction. Each of which is connected to the upper bracket 12, the damper main body 21, and the lower bracket 13 by a plurality of bolts 23. In addition, the width direction of the damper main body 21 is, in other words, the displacement absorption direction of the damper device 20, and is the direction in which the reinforcing beam 4 extends in the illustrated example.

  In the damper device 20, the horizontal relative displacement between the upper bracket 12 and the lower bracket 13 is input to the top and bottom of the damper main body 21 via the mounting member 22. The damper main body 21 is elastically deformed or plastically deformed in accordance with the relative displacement of the upper and lower portions in the horizontal direction, and absorbs (attenuates) the displacement energy in the horizontal direction.

  As shown in FIGS. 2 to 4, the vertical support portion 30 is connected to the upper and lower reinforcing beams 4, 4 integrally with the gusset plates 31 </ b> A, 31 </ b> B, and extends in the vertical direction and is coupled to the upper and lower gusset plates 31 </ b> A, 31 </ b> B. The support member (vertical load support member) 32 is provided. The vertical support portion 30 is located at the center in the width direction of the damper device 20.

  As shown in FIGS. 2 and 3, the gusset plates 31 </ b> A and 31 </ b> B are provided in pairs on both surfaces of the web 4 a with respect to the upper and lower reinforcing beams 4. Gusset plates 31A and 31B are integrally joined to web 4a and flanges 4b and 4b, respectively, by welding. The gusset plates 31A and 31B are positioned in a vertical plane orthogonal to the surface of the web 4a in each of the upper and lower reinforcing beams 4, and the width direction of the damper device 20 when viewed from the direction orthogonal to the surface of the web 4a. It is provided so as to be located concentrically with the center position (central portion in the displacement absorption direction) C.

As shown in FIG. 4, the gusset plate 31 </ b> A joined to the upper reinforcing beam 4 has a support member attachment portion (upper coupling portion) 31 s. The support member attachment portion 31s projects beyond the end portion 4s of the lower flange 4b on which the support member 32 is provided, to the side away from the surface of the web 4a (the direction intersecting the extending direction of the reinforcing beam 4). At the same time, it extends a predetermined length below the flange 4b. The gusset plate 31A is formed so that the projecting dimension T in the direction away from the surface of the web 4a gradually increases from the upper side to the lower side.
The gusset plate 31B joined to the lower reinforcing beam 4 has a support member attachment portion (lower coupling portion) 31t. The support member attachment portion 31t protrudes beyond the end 4s of the upper flange 4b on which the support member 32 is provided to the side away from the surface of the web 4a and extends a predetermined length above the flange 4b.

  In addition, at least a part of these gusset plates 31A and 31B is in a space S sandwiched between the flange portions 15b and 15b on both sides of the web portion 15a with respect to the H-shaped steel 15 constituting the upper bracket 12 and the lower bracket 13. Has been placed.

As shown in FIG. 4, two support members 32 are provided on both sides of the upper and lower reinforcing beams 4, 4 sandwiched in a direction intersecting with the extending direction of the reinforcing beams 4, 4. Further, the support member 32 sandwiches the gusset plates 31A and 31B in the direction in which the reinforcing beams 4 and 4 extend in each of one side and the other side in the direction intersecting with the direction in which the upper and lower reinforcing beams 4 and 4 extend. It is provided on each side. Each support member 32 is made of an angle material made of steel and having an L shape in a plan view.
Each support member 32 is preferably as long as possible in the vertical direction, and is at least longer than the length of the damper device 20 in the vertical direction. Further, each support member 32 has an upper end portion 32 a positioned directly below the lower flange 4 b of the upper reinforcing beam 4 and a lower end portion 32 b positioned immediately above the upper flange 4 b of the lower reinforcing beam 4. The length is more preferable.

  Each of the support members 32 having an L shape in a plan view has an upper end portion 32a and a lower end portion 32b with respect to the support member attachment portion 31s of the upper gusset plate 31A and the support member attachment portion 31t of the lower gusset plate 31B. Pin-joined by a plurality of bolts 33. As shown in FIG. 3, each support member 32 has one flat plate portion 32p along the gusset plates 31A and 31B and the other flat plate portion 32q parallel to the web portion 15a at a position spaced from the surface of the web portion 15a. It is provided so that it may be located in. Further, at least a part of the support member 32 is arranged in a space S sandwiched between flange portions 15b and 15b on both sides of the web portion 15a with respect to the H-shaped steel 15 constituting the upper bracket 12 and the lower bracket 13. .

When such a vibration damping device 10 is displaced in the horizontal direction together with the housing 1 due to an earthquake or the like, when the upper reinforcing beam 4 and the lower reinforcing beam 4 are displaced relative to each other, the upper bracket 12 of the damper portion 11 is disposed. And the lower bracket 13 are relatively displaced in the horizontal direction. This relative displacement is input to the damper main body 21 via the upper and lower mounting members 22. In the damper main body 21, the energy of the displacement is attenuated by the deformation of the damper main body 21 with respect to the relative displacement in the horizontal direction between the upper bracket 12 and the lower bracket 13. Here, the damper main body 21 is elastically deformed or plastically deformed depending on the magnitude of the relative displacement.
In this manner, the damper body 21 absorbs the energy of the relative displacement in the horizontal direction of the casing 1 through the upper bracket 12 and the lower bracket 13, thereby improving the seismic performance of the casing 1.

  On the other hand, in the vibration damping device 10, the support member 32 supports the load in the vertical direction between the upper reinforcing beam 4 and the lower reinforcing beam.

As described above, according to the vibration damping device 10 and the building housing 1 according to the present embodiment, the damper main body 21 is connected to the upper reinforcing beam 4 between the pair of reinforcing beams 4 and 4 positioned above and below each other. By providing the upper bracket 12 extending downward and the lower bracket 13 extending upward from the lower reinforcing beam 4, the vertical dimension of the damper main body 21 can be reduced. Thereby, in the event of an earthquake or the like, the relative displacement in the horizontal direction between the upper reinforcing beam 4 and the lower reinforcing beam 4 transmitted via the upper bracket 12 and the lower bracket 13 is efficiently reduced by the damper main body 21. Can be attenuated.
Further, since the support member 32 is longer in the vertical direction than the vertical dimension of the damper main body 21, the joint portion to the upper reinforcing beam 4 at the upper end portion 32a of the support member 32 and the lower reinforcing beam at the lower end portion 32b. The displacement angle in the joining member to 4 can be reduced. Therefore, the upper end portion 32a and the lower end portion 32b of the support member 32 do not need to use costly spherical plain bearings and the like, and it is possible to ensure high earthquake resistance while being low in cost.

Further, by attaching the support member 32 via gusset plates 31A and 31B provided integrally with the upper and lower reinforcing beams 4, the upper end portion 32a and the lower end portion 32b of the support member 32 are connected to the upper and lower reinforcing beams 4 and 4 respectively. It can be firmly bonded to each other.
Further, since the upper and lower gusset plates 31A and 31B have the support member attachment portion 31s and the support member attachment portion 31t on the support member 32 side with respect to the upper and lower reinforcement beams 4 and 4, Can be easily combined in the vicinity of the reinforcing beams 4 and 4.

  In addition, with respect to the upper bracket 12 and the lower bracket 13 having an H-shaped cross section, the gusset plates 31A and 31B and a part of the support member 32 are in the space S sandwiched between the flange portions 15b and 15b on both sides of the web portion 15a. It is stored. Thereby, the protrusion dimension to the direction spaced apart from the surface 15f of the web part 15a of the gusset plates 31A and 31B and the support member 32 can be suppressed. Therefore, the cross-sectional dimension in the horizontal plane of the vibration damping device 10 can be reduced. As a result, it is possible to prevent the installation position of the vibration damping device 10 from being restricted, the appearance to be a sword, or the visual field from being obstructed by the vibration damping device 10.

  The gusset plates 31A and 31B and the support member 32 are on both sides of the reinforcing beam 4 in the direction intersecting the extending direction of the reinforcing beam 4, and on both sides of the gusset plates 31A and 31B in the extending direction of the reinforcing beam 4. Since each is provided, the vertical load can be dispersed and supported by the plurality of support members 32. Therefore, the vertical load supported by each of the support members 32 is reduced, and each of the support members 32 can be thinned. Thereby, the cross-sectional dimension in the horizontal surface of the damping device 10, especially the dimension in the direction orthogonal to the web 4a of the reinforcement beam 4 can be made small. As a result, it is possible to prevent the installation position of the vibration damping device 10 from being restricted, the appearance to be a sword, or the visual field from being obstructed by the vibration damping device 10.

  Further, the vertical support portion 30 configured by the gusset plates 31 </ b> A and 31 </ b> B and the support member 32 is provided so as to be positioned in a vertical plane including the center position C in the width direction of the damper main body 21. Thereby, it can suppress that the eccentric force is applied to the support member 32 by suppressing that the vertical support part 30 offsets to the side from the center part of the displacement absorption direction in the damper apparatus 20 with respect to the damper main body 21. FIG. Thereby, it is possible to suppress the bending moment from acting on the upper and lower end portions 32b of the support member 32 and to support the vertical load efficiently.

  Moreover, since the damper main body 21 is a steel damper, compared with the case where the damper main body 21 is made into a viscoelastic damper, it can make it hard to receive a thermal influence. Therefore, even when the vibration damping device 10 is provided at a position where the temperature is likely to rise due to solar radiation or the like, such as outside the building, high vibration resistance can be reliably maintained.

The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, the support member 32 is coupled to the gusset plates 31A and 31B joined to the upper and lower reinforcing beams 4, but the gusset plates 31A and 31B may have any shape. For example, in the above embodiment, the gusset plates 31A and 31B are configured such that the projecting dimension of the reinforcing beam 4 from the web 4a gradually changes in the vertical direction, but the present invention is not limited thereto, and the projecting dimension may be constant.
Further, instead of the gusset plates 31A and 31B, the support member 32 may be coupled to the upper and lower reinforcing beams 4 using other brackets or the like. Even in this case, it is preferable that the upper end portions 32a and 32b of the support member 32 are coupled at positions as close as possible to the upper and lower reinforcing beams 4 and 4 so that the length of the support member 32 in the vertical direction is increased.

Moreover, about the structure of the housing 1, what kind of structure may be sufficient.
Further, the vibration damping device 10 and the horizontal structure 2 above and below the vibration damping device 10 can be provided at the same time when the housing 1 is newly installed, or the vibration damping device 10 and the horizontal structure 2 can be provided to the existing housing 1. Good.
Moreover, although the horizontal structure 2 was provided so that it might protrude outward from the outer side surface 1a of the housing 1, it is not restricted to this. The vibration damping device 10 having the above-described configuration can be provided between the horizontal structures such as beams and slabs that constitute the casing 1 and are positioned above and below each other.

  In addition, it is possible to appropriately replace the constituent elements in the embodiment with known constituent elements without departing from the spirit of the present invention, and the above-described modified examples may be appropriately combined.

1 Housing (structure)
4 Reinforcement beam (horizontal member)
DESCRIPTION OF SYMBOLS 10 Damping device 12 Upper bracket 13 Lower bracket 15 H-shaped steel 15a Web part 15b Flange part 21 Damper main body (damper)
30 Vertical support parts 31A, 31B Gusset plate 31s Support member attachment part (upper joint part)
31t Support member mounting part (lower joint part)
32 Support member (vertical load support member)
32a Upper end part 32b Lower end part C Width direction center position (displacement absorption direction center part)

In order to solve the above problems, the present invention proposes the following means.
The vibration damping device according to the present invention is a vibration damping device installed between a pair of horizontal members positioned above and below each other, and is joined to the upper horizontal member and extends downward, and the lower bracket A lower bracket which is joined to a horizontal member and extends upward; a damper which is provided between the upper bracket and the lower bracket and damps a relative displacement in a horizontal direction between the upper bracket and the lower bracket; and And a vertical load support member whose upper end is coupled to the upper horizontal member and whose lower end is coupled to the lower horizontal member , the upper horizontal member and the lower horizontal member. Each of the members is integrally provided with a gusset plate to which the vertical load support member is coupled, and the gusset plate provided on the upper horizontal member includes the damper. The gusset plate provided on the lower horizontal member has an upper coupling portion to which the upper end portion of the vertical load supporting member is coupled at a position above the vertical position, and the vertical load supporting member is disposed at a position lower than the damper at the vertical position. It has a lower joint part to which the lower end part of the load support member is joined, and the vertical load support member is provided on both sides sandwiching the gusset plate in the extending direction of the horizontal member, respectively. To do.

In addition , by attaching the vertical load support members via gusset plates integrally provided on the upper and lower horizontal members, the upper and lower ends of the vertical load support members can be firmly coupled to the upper and lower horizontal members. it can.
Moreover, since the upper and lower gusset plates have an upper coupling portion and a lower coupling portion on the vertical load support member side with respect to the upper and lower horizontal members, the vertical load support member can be easily coupled.

Further , by arranging the vertical load support members on both sides of the gusset plate and increasing the number of the vertical load support members, the vertical load can be dispersed and supported by the plurality of vertical load support members. Therefore, the vertical load supported by each of the vertical load support members is reduced, and each of the vertical load support members can be thinned. Thereby, the cross-sectional dimension in the horizontal surface of a damping device can be made small.

Further, the vibration damping device according to the present invention is a vibration damping device installed between a pair of horizontal members positioned above and below each other, and is joined to the upper horizontal member and extends downward, and a lower side A lower bracket that is joined to the horizontal member and extends upward, a damper that is provided between the upper bracket and the lower bracket, and that attenuates a relative displacement in the horizontal direction between the upper bracket and the lower bracket, and A vertical load support member that is vertically longer than the damper, has an upper end coupled to the upper horizontal member, and a lower end coupled to the lower horizontal member, and the upper bracket and the lower bracket include: It has a cross-sectional H shape having a web portion and a flange portion provided orthogonal to both sides of the web portion, and at least a part of the vertical load support member is the web It may be a are arranged on opposite sides of the flange portion sandwiched by spaces.

Further, the vibration damping device according to the present invention is a vibration damping device installed between a pair of horizontal members positioned above and below each other, and is joined to the upper horizontal member and extends downward, and a lower side A lower bracket that is joined to the horizontal member and extends upward, a damper that is provided between the upper bracket and the lower bracket, and that attenuates a relative displacement in the horizontal direction between the upper bracket and the lower bracket, and A vertical load support member that is longer than the damper and has an upper end portion coupled to the upper horizontal member and a lower end portion coupled to the lower horizontal member, and the vertical load support member includes the horizontal load member. The members may be provided on both sides sandwiched in a direction intersecting the direction in which the horizontal member extends.

Further , by providing the upper and lower horizontal members with gusset plates, the upper and lower ends of the vertical load support member can be firmly and easily coupled to the upper and lower horizontal members.

In addition , each of the vertical load support members can be thinned. Thereby, the cross-sectional dimension in the horizontal plane of the vibration damping device can be reduced, and the installation position of the vibration damping device is restricted, the appearance becomes a sword, and the visual field is prevented from being obstructed by the vibration damping device. It becomes possible.

According to the vibration damping device of the second aspect , since it is possible to suppress the eccentric force from being applied to the vertical load support member, it is possible to suppress the bending moment from acting on the upper and lower ends of the vertical load support member, and to reduce the vertical load. It can be supported efficiently.

According to the vibration damping device of the third aspect , the cross-sectional dimension in the horizontal plane of the vibration damping device can be reduced. As a result, it is possible to prevent the installation position of the vibration damping device from being restricted, the appearance to be stabbed, and the visual field from being obstructed by the vibration damping device.

According to the vibration damping device of the fourth aspect , each of the vertical load support members can be thinned. Thereby, the cross-sectional dimension in the horizontal plane of the vibration damping device can be reduced, and the installation position of the vibration damping device is restricted, the appearance becomes a sword, and the visual field is prevented from being obstructed by the vibration damping device. It becomes possible.

According to the vibration damping device of the fifth aspect , high vibration resistance can be reliably maintained even when the vibration damping device is provided outside the building.

According to the structure of the sixth aspect , since it is not necessary to employ a spherical plain bearing for the vertical load support member, it is possible to ensure earthquake resistance performance at a low cost.

Claims (8)

A vibration damping device installed between a pair of horizontal members positioned above and below each other,
An upper bracket joined to the upper horizontal member and extending downward;
A lower bracket joined to the lower horizontal member and extending upward;
A damper that is provided between the upper bracket and the lower bracket and damps a horizontal relative displacement between the upper bracket and the lower bracket;
A vertical load support member which is longer than the damper and has an upper end coupled to the upper horizontal member and a lower end coupled to the lower horizontal member;
A vibration damping device comprising: Each of the upper horizontal member and the lower horizontal member is integrally provided with a gusset plate to which the vertical load support member is coupled,
The gusset plate provided on the upper horizontal member has an upper coupling portion to which the upper end portion of the vertical load support member is coupled at a position above the damper,
2. The vibration damping device according to claim 1, wherein the gusset plate provided on the lower horizontal member has a lower coupling portion to which the lower end portion of the vertical load support member is coupled at a position below the damper.   The said vertical load support member is a damping device of Claim 2 provided in the both sides which pinched | interposed the said gusset plate in the direction where the said horizontal member is extended, respectively.   4. The vibration damping device according to claim 2, wherein a vertical support portion configured by the gusset plate and the vertical load support member is located at a center portion of the damper in a displacement absorption direction. The upper bracket and the lower bracket have an H-shaped cross section having a web portion and flange portions provided orthogonal to both sides of the web portion,
5. The vibration damping device according to claim 1, wherein at least a part of the vertical load support member is disposed in a space sandwiched between the flange portions on both sides of the web portion.   The said vertical load support member is a damping device as described in any one of Claim 1 to 5 each provided in the both sides which pinched | interposed the said horizontal member in the direction which cross | intersects the direction where the said horizontal member extends.   The vibration damper according to any one of claims 1 to 6, wherein the damper is a steel damper. A plurality of horizontal structures provided at intervals in the vertical direction;
The vibration damping device according to any one of claims 1 to 7, provided between horizontal members in the horizontal structure positioned above and below each other.
A structure comprising

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