JP2013133635A - Vibration control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve workability of installation work of a vibration control device.SOLUTION: A vibration control device 10 comprises an upper transmission member 24, a lower transmission member 26, a hydraulic damper 28, an upper attaching member 30, a lower attaching member 32, an upper spacer 34, and a lower spacer 36. The upper spacer 34 and the lower spacer 36 are fastened to side faces on an outer wall surface side of an upper beam 18 and a lower beam 14, and attached in the state of being projected to the side face of the outer wall surface so as to easily fix the upper attaching member 30 from the outer side of the outer wall surface. The upper attaching member 30 is a metal fitting for fixing an upper end of the upper transmission member 24 to the side face on the outer wall surface side of the upper spacer 34. The lower attaching member 32 is a metal fitting for fixing a lower end of the lower transmission member 26 to the side face on the outer wall surface side of the lower spacer 36.

Description

  The present invention relates to a vibration damping device that absorbs vibration energy of a structure.

  As a conventional vibration damping device, there are an apparatus installed inside a wall portion of a structure and an apparatus installed on an outer wall of the structure. Moreover, since the construction of a vibration damping device of the type housed in the wall portion of a house requires a large amount of work in the case of seismic retrofitting, a vibration damping device that is attached to the outer wall of the house as shown in Patent Document 1 is desired. Has been.

  In the vibration damping device of Patent Document 1, an upper transmission member fixed to an upper beam of a structure and a lower transmission member fixed to a lower beam are coupled to a wall surface (beam or column) of the structure, and the upper transmission member The hydraulic damper is disposed between the upper transmission member and the lower transmission member, and the vibration energy is absorbed by the expansion / contraction operation of the hydraulic damper accompanying the relative displacement between the upper transmission member and the lower transmission member.

JP 2003-314082 A

  However, the technique shown in Patent Document 1 is a configuration in which the upper transmission member and the lower transmission member are fixed only to the side surfaces (surfaces parallel to the wall surface of the structure) of the upper and lower beams. In order to increase the bonding strength between the outer wall, the upper transmission member, and the lower transmission member, a large number of fastening members such as screws or bolts must be used, which causes a problem in workability at the installation site.

  In view of the above circumstances, an object of the present invention is to provide a vibration damping device that solves the above-described problems.

  In order to solve the above problems, the present invention has the following means.

The present invention is provided on the outside of the wall surface of the structure, and an upper transmission member to which horizontal vibration of the upper beam of the structure is input,
A lower transmission member provided on the outside of the wall surface, into which horizontal vibrations of a lower beam of the structure are input;
A damper for attenuating relative displacement due to vibration between the upper transmission member and the lower transmission member;
An upper spacer fixed to a side surface of the upper beam on the wall surface side;
A lower spacer fixed to the side surface of the wall surface of the lower beam;
An upper horizontal portion that contacts the lower surface of the upper spacer, and an upper vertical portion that is fastened to a side surface of the upper spacer on the wall surface side, and an upper mounting member that attaches the upper transmission member to the upper beam;
A lower mounting portion that has a lower horizontal portion that contacts the upper surface of the lower spacer and a lower vertical portion that is fastened to a side surface on the wall surface side, and that attaches the lower transmission member to the lower beam. To do.

  According to the present invention, it is possible to provide a vibration damping device with good on-site workability.

It is a perspective view which shows one Example of the damping device by this invention. It is a perspective view which shows the attachment state of an upper attachment member. It is a perspective view which shows an upper attachment member. It is a perspective view which shows the attachment state of a lower attachment member. It is a perspective view which shows a lower attachment member. It is a top view which shows the structure of an upper attachment member. It is a front view which shows the structure of an upper attachment member. It is a side view which shows the structure of an upper attachment member. It is a figure which shows the construction example of the outer wall to which a damping device is attached. It is a front view which shows the state which attached the damping device to the outer wall surface. It is a side view which shows the state which attached the damping device to the outer wall surface. It is a front view which shows the state which attached the flame | frame for covers to the outer wall surface. It is a side view which shows the state which attached the flame | frame for covers to the outer wall surface. It is a front view which shows the state which attached the cover member to the flame | frame for covers. It is a side view which shows the state which attached the cover member to the flame | frame for covers.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
[Configuration of vibration control device]
FIG. 1 is a perspective view showing an embodiment of a vibration damping device according to the present invention. As shown in FIG. 1, the vibration damping device 10 includes a lower beam 14 fixed to the foundation of a structure, an upper beam 18 laid horizontally to support the second floor, a lower beam 14 and an upper beam. 18 is attached to the outside on the outer wall side of the wall surface space formed by a pair of pillars 20 fixed between 18. When the vibration control device 10 is provided on the first floor wall, the lower beam 14 is a base for supporting the first floor. When provided on the second floor wall, the upper beam on the first floor is the lower beam on the second floor. Become.

  The structure to which the vibration damping device 10 is attached is, for example, a newly built or already built wooden house or wooden building. However, it can be used for lightweight steel houses.

  On the front surface (outer wall surface side) of the lower beam 14, the upper beam 18, and each column 20, an outer wall as shown in FIG. 5 (not shown for easy understanding of the structure in FIG. 1) is formed. The vibration device 10 is directly attached to the lower beam 14 and the upper beam 18 along the outside of the outer wall. In the case of an existing structure, since furniture and electrical appliances are installed inside, it is possible to attach the vibration damping device 10 inside the inner wall, but it is provided on the outer wall side. Further, in modern homes with many windows, there are almost no braces in the wall space without windows, and there are restrictions on the places where they can be installed. Since it is provided outside the space, it is possible to provide the vibration control device on the wall surface provided with the braces. Furthermore, since it is necessary to remove the outer wall or the inner wall in the seismic retrofit, it takes time for installation work. However, with the vibration damping device 10 of this configuration, only the minimum wall is removed, and the outer wall of the existing structure is removed. It can be easily installed in the outer space. In the case of a new construction, the outer wall between the wall surface space and the vibration damping device 10 can be omitted.

  The vibration damping device 10 includes an upper transmission member 24, a lower transmission member 26, a hydraulic damper 28, an upper attachment member 30, a lower attachment member 32, an upper spacer 34, and a lower spacer 36. The upper mounting member 30 is a metal fitting for fixing the upper end of the upper transmission member 24 to the side surface of the upper beam 18 on the outer wall surface side. The lower attachment member 32 is a metal fitting for fixing the lower end of the lower transmission member 26 to the side surface of the lower beam 14 on the outer wall surface side.

  The upper spacer 34 can be fastened to a side surface (attached portion) of the upper beam 18 by a fastening member 54 such as a nail or a wood screw and / or an adhesive, and the upper mounting member 30 can be easily attached from the outside of the outer wall surface. So that it can be fixed to the side of the outer wall. The upper spacer 34 is obtained by cutting wood or a structural plywood into a plate having a predetermined dimension, and has a thickness dimension (Y direction dimension in the drawing) that allows the upper mounting member 30 to be attached.

  The lower spacer 36 can be fastened to a side surface (attached portion) of the lower beam 14 by a fastening member 54 such as a nail or a wood screw and / or an adhesive, and the lower mounting member 32 can be easily attached from the outside of the outer wall surface. So that it can be fixed to the side of the outer wall. The lower spacer 36 is obtained by cutting wood or a structural plywood into a plate shape having a predetermined dimension, and has a thickness dimension (Y direction dimension in the figure) that allows the lower mounting member 32 to be attached.

  The upper transmission member 24 is composed of a structural plywood or the like, and its upper end is fastened to the upper mounting member 30 by a plurality of fastening members 50 such as wood screws or bolts. Further, the upper transmission member 24 is fastened to the upper spacer 34 fixed to the side surface (attached portion) on the outer wall surface side of the upper beam 18 via the upper mounting member 30.

  The lower transmission member 26 is composed of a structural plywood or the like, and the lower end thereof is fastened to the lower mounting member 32 by a plurality of fastening members 50 such as wood screws or bolts. Further, the lower transmission member 26 is fastened to the lower spacer 36 fixed to the side surface (attached portion) of the lower beam 14 via the lower attachment member 32.

  Since the upper spacer 34 and the lower spacer 36 are fixed to the side surfaces of the upper beam 18 and the lower beam 14 on the outer wall surface side, the mounting positions of the upper transmission member 24 and the lower transmission member 26 are changed by changing the thickness in the horizontal direction. Can be adjusted to an arbitrary position. The thickness dimensions of the upper spacer 34 and the lower spacer 36 are selected according to the thickness of the outer wall attached to the side surface on the outer wall surface side of the upper beam 18 and the side surface on the outer wall surface side of the lower beam 14, for example. As a result, the upper transmission member 24, the lower transmission member 26, and the hydraulic damper 28 are mounted on the outside of the outer wall surface, and can perform a vibration control operation without contacting the outer wall surface of the structure. Become.

  In addition, since the thickness of the outer wall surface 60 varies depending on each building, it can be dealt with by preparing a plurality of types having different thicknesses in advance so that the thickness of the upper spacer 34 and the lower spacer 36 can be selected at the installation site. .

  The hydraulic damper 28 is attached so as to be interposed between the lower end of the upper transmission member 24 and the upper end of the lower transmission member 26. The hydraulic damper 28 includes a cylinder 42 filled with hydraulic oil, a piston (not shown) that slides inside the cylinder 42, and a piston rod 44 that is coupled to the piston. Although the hydraulic damper has high durability and is most excellent for permanent use, a damper made of a viscoelastic damper, a friction damper, or extremely mild steel may be used.

  The end of the cylinder 42 is connected to a bracket 46 fastened by a fastening member 52 to the upper end of the lower transmission member 26. The end of the piston rod 44 on the opposite side is connected to a bracket 48 fastened by a fastening member 52 to the lower end of the upper transmission member 24.

  In the vibration damping device 10 configured as described above, for example, when horizontal vibration is input to a structure due to an earthquake, the upper transmission member 24 that transmits vibration via the upper beam 18 and the lower beam 14 A relative displacement in the horizontal direction (for example, a displacement in the X direction in FIG. 1) occurs with the lower transmission member 26. Accordingly, the hydraulic damper 28 interposed between the upper transmission member 24 and the lower transmission member 26 causes the piston to slide in the cylinder 42 and generates a damping force by the damping valve provided on the piston to attenuate the vibration. .

In addition, since the hydraulic damper 28 is attached in a direction in which the cylinder 42 and the piston rod 44 extend in the X direction, the hydraulic damper 28 expands and contracts due to the relative displacement in the X direction of the upper transmission member 24 and the lower transmission member 26. Perform compression operation. Therefore, the hydraulic damper 28 absorbs vibration energy by generating a damping force by the sliding operation of the piston rod 44 with respect to the cylinder 42.
[Mounting structure and configuration of upper mounting member 30 and lower mounting member 32]
FIG. 2A is a perspective view showing an attachment state of the upper attachment member 30. FIG. 2B is a perspective view showing the upper mounting member 30. As shown in FIGS. 2A and 2B, the upper mounting member 30 is formed of a metal material such as iron, and the first fastening portion 30 </ b> A fastened to the upper end of the upper transmission member 24 and the outer portion of the upper spacer 34. It has a pair of 2nd fastening part 30B fixed to the side surface by the side of a wall surface, and several coupling | bond part 30C which couple | bonds between 30 A of 1st fastening parts, and the 2nd fastening part 30B.

  The first fastening portion 30 </ b> A is fastened to the upper end side surface of the upper transmission member 24 by the fastening member 50, and the pair of second fastening portions 30 </ b> B is fastened to the side surface on the outer wall surface side of the upper spacer 34 by the fastening member 56. Each coupling portion 30C is provided in a direction extending in the vertical direction. For example, the upper portion is coupled to the end portion of the first fastening portion 30A by welding, and the lower portion is coupled to the back surface of the second fastening portion 30B. Strength against direction load is increased.

  FIG. 3A is a perspective view showing an attachment state of the lower attachment member 32. FIG. 3B is a perspective view showing the lower mounting member 32. As shown in FIGS. 3A and 3B, the lower mounting member 32 is formed of a metal material such as iron, and the first fastening portion 32 </ b> A fastened to the lower end of the lower transmission member 26 and the side surface of the upper beam 18. A pair of second fastening portions 32B fastened to the upper spacer 34 fixed to the upper spacer 34, and a plurality of joint portions 32C that join between the first fastening portion 30A and the second fastening portion 30B.

  The first fastening portion 32 </ b> A is fastened to the lower end side surface of the lower transmission member 26 by the fastening member 50, and the pair of second fastening portions 32 </ b> B are fastened to the side surface on the outer wall surface side of the lower spacer 36 by the fastening member 56. Each coupling portion 34 is provided in a direction extending in the vertical direction. For example, the upper portion is coupled to the first fastening portion 32A and the lower portion is coupled to the second fastening portion 32B by welding, for example, and the strength against the load in the vertical direction is increased. Has been increased.

  4A is a plan view showing the configuration of the upper mounting member 30. FIG. FIG. 4B is a front view showing the configuration of the upper mounting member 30. FIG. 4C is a side view showing the configuration of the upper mounting member 30. Here, since the configurations of the upper mounting member 30 and the lower mounting member 32 are vertically symmetrical, the configuration of the upper mounting member 30 will be described with reference to FIGS. 4A to 4C, and the description of the lower mounting member 32 will be omitted. .

  The first fastening portion 30A and the second fastening portion 30B are L-shaped in cross section, and each have a vertical portion 30A1, a horizontal portion 30A2, an upper vertical portion 30B1, and an upper horizontal portion 30B2. The first fastening portion 30A and the second fastening portion 30B are joined by welding in a state where the horizontal portion 30A2 and the horizontal portion 30B2 are overlapped with each other, and the first joining portion 30C1 is welded to both ends in the longitudinal direction. The second coupling portion 30C2 is coupled by welding between the vertical portion 30B1 of the second fastening portion 30B and the horizontal portion 30A2 of the first fastening portion 30A.

  As described above, in the upper mounting member 30, the first fastening portion 30A and the second fastening portion 30B are integrated by the first fastening portion 30C1 and the second fastening portion 30C2.

  The vertical portions 30A1 and 30B1 are provided with a plurality of small holes 30D and 30E for inserting fastening members such as nails or wood screws.

As shown in FIG. 2A, the first fastening portion 30 </ b> A has the vertical portion 30 </ b> A <b> 1 fastened to the side surface on the outer wall surface side of the upper transmission member 24 with the horizontal portion 30 </ b> A <b> 2 in contact with the upper end surface of the upper transmission member 24. . Further, in the second fastening portion 30B, the vertical portion 30B1 is fastened to the side surface on the wall surface side of the upper spacer 34 with the horizontal portion 30B2 being in contact with the lower end surface of the upper spacer 34.
[Construction method of vibration damping device 10]
Here, the construction method in the case of the reconstruction which attaches the damping device 10 to the outer wall surface of the already constructed house is demonstrated. Note that an upper mounting member 30 and a lower mounting member 32 are already attached to the lower transmission member 24 and the upper transmission member 26 at the factory. One end of a hydraulic damper 28 is connected to one of the lower transmission member 24 and the upper transmission member 26.
[Procedure 1 of construction method]
FIG. 5 is a diagram showing a construction example of the outer wall surface to which the vibration damping device 10 is attached. As shown in FIG. 5, in the construction procedure 1 of the vibration damping device 10, first, an upper opening 62 and a lower opening 64 are provided in the outer wall surface 60. The upper opening 62 is formed so as to face (expose) the upper beam 18, and is further opened to a position where the horizontal portion 30 </ b> A <b> 2 of the first fastening portion 30 </ b> A can be inserted below the upper beam 18. Further, the lower opening 64 is formed so as to face (expose) the lower beam 14, and is further opened to a position where the horizontal portion 32A2 of the first fastening portion 32A can be inserted above the lower beam 14. The lower beam 14 is fixed to a concrete base 15 of the building by embedded bolts or the like.

  The lateral width dimension LB of each opening 62, 64 is set slightly longer than the lateral width dimension (horizontal length) of the upper spacer 34, the lower spacer 36, the upper mounting member 30, and the lower mounting member 32.

  Further, the vertical width LH of each opening 62, 64 is the horizontal width of the first fastening portions 30A, 32A that abut the upper surface of the lower beam 14 to the vertical width (length in the vertical direction) of the upper spacer 34 and the lower spacer 36. It is set slightly longer than the dimension obtained by adding the thicknesses of the portions 30A2 and 32A2. By setting the vertical width dimension LH of the openings 62 and 64 as described above, the horizontal portions 30A2 and 32A2 of the first fastening portions 30A and 32A are provided on the lower surface side of the upper beam 18 and the upper surface side of the lower beam 14, respectively. A gap for insertion is formed.

As described above, the outer wall surface 60 may be provided with the openings 62 and 64 having dimensions to which the upper spacer 34, the lower spacer 36, the upper mounting member 30, and the lower mounting member 32 can be attached. (Construction) takes less time and workability has been improved. That is, according to the present invention, the deleted area of the outer wall surface 60 can be reduced, the workability of the installation work is good, and the possibility of rain leakage from the outer wall surface 60 can be reduced.
[Procedure 2 of construction method]
FIG. 6A is a front view showing a state in which the vibration damping device 10 is attached to the outer wall surface 60. FIG. 6B is a side view showing a state in which the vibration damping device 10 is attached to the outer wall surface 60. 6A and 6B, in step 2 of the construction method of the vibration damping device 10, the upper spacer 34 and the lower spacer 36 are inserted into the openings 62 and 64, and the upper spacer 34 and the lower spacer 36 are connected to the upper beam. 18, It fixes to the side surface by the side of the outer wall surface of the lower beam 14 with the fastening member 54 and / or an adhesive agent.

  Next, the lower horizontal portions 32B2 and 32B2 of the lower attachment member 32 fastened to the lower end of the lower transmission member 26 are inserted into the gap between the lower opening 64 and the upper surface of the lower beam 14. At this time, the lower horizontal portion 32B2 of the lower mounting member 32 abuts on the upper end surface of the lower spacer 36 fixed to the side surface on the outer wall surface side of the lower beam 14, and the lower vertical portion 32B1 of the lower mounting member 32 is lower The spacer 36 is held in contact with the side surface fixed to the side surface on the outer wall surface side. In this holding state, the lower vertical portion 32B2 of the lower mounting member 32 is fastened to the side surface of the lower spacer 36 by the fastening member 56.

  Thereby, the lower transmission member 26 is fixed to the lower spacer 36 via the lower attachment member 32. The upper transmission member 24 is similarly fixed to the upper spacer 34 via the upper mounting member 30. In this holding state, the upper vertical portion 30 </ b> B <b> 2 of the upper mounting member 30 is fastened to the side surface of the upper spacer 34 on the wall surface side by the fastening member 56.

  At this time, the upper horizontal portion 30B2 of the upper mounting member 30 is in contact with the upper end surface of the upper spacer 34, and the upper horizontal portion 30B2 of the upper mounting member 30 is in contact with the upper end surface of the upper spacer 34. Accordingly, the upper vertical portion 30B1 of the upper mounting member 30 and the lower vertical portion 32B1 of the lower mounting member 32 are firmly fixed in contact with the side surfaces of the upper spacer 34 and the lower spacer 36 on the outer wall surface side.

  For this reason, the vertical support strength of the upper transmission member 24 and the lower transmission member 26 by the upper mounting member 30 and the lower mounting member 32 is further increased, so that the vertical portions 30B1 and 32B1 are fastened to the lower spacer 34 and the upper spacer 36. Thus, the number of fastening members 56 for reducing the number of fastening members 56 is improved, and the workability of the installation work is improved.

  Further, in the present embodiment, a sufficient effect can be obtained without providing a fastening member such as a nail in the horizontal portions 30B2 and 32B2, so that the vertical width dimension LH of the openings 62 and 64 can be reduced. However, in a newly built property, a fastening member may be provided to further increase the strength.

  Thereafter, the end of the cylinder 42 or the piston rod 44 of the hydraulic damper 28 which is not yet connected is connected to the lower transmission member 26 or the bracket 46 or 48 fixed to the upper transmission member 24.

  Further, when the hydraulic damper 28 generates a damping force during the damping operation, a turning force is generated so that the upper transmission member 24 and the lower transmission member 26 are inclined in the horizontal direction with respect to the vertical direction. Since the upper horizontal portion 30B2 and the lower horizontal portion 32B2 of the lower mounting member 32 are in contact with the lower surface of the upper spacer 34 and the upper surface of the lower spacer 36, the rotation of the upper transmission member 24 and the lower transmission member 26 is suppressed, Vibration control can be performed stably.

Further, upper cover support portions 70 having a U-shaped cross section are fastened to the left and right ends of the vertical portion 30A1 of the upper mounting member 30, and a cross section is formed in the lower vertical portion 32B1 of the lower mounting member 32 in a U shape. The lower cover support portion 72 is fastened. The upper cover support part 70 and the lower cover support member 72 are attached so that the upper side is open.
[Procedure 3 of construction method]
FIG. 7A is a front view showing a state in which a cover frame is attached to the outer wall surface 60. FIG. 7B is a side view showing a state in which the cover frame is attached to the outer wall surface 60. As shown in FIGS. 7A and 7B, in step 3, the cover frame 80 is attached to the upper cover support portion 70 and the lower cover support member 72. The cover frame 80 includes left and right vertical frames 82 and 84, a horizontal frame 86 that connects the upper ends of the vertical frames 82 and 84, and a plurality of pressing members 88 that are horizontally mounted in a lattice between the vertical frames 82 and 84. And have.

The vertical frames 82 and 84 are supported in a state where the lower end portions are fitted in the U-shaped grooves of the lower cover support member 72, and the vicinity of the upper end portions are fastened to the left and right protruding portions of the upper cover support portion 70. The pressing member 88 is a regulating member for suppressing the movement of the lower transmission member 24, the upper transmission member 26, and the hydraulic damper 28 in the Y direction.
[Procedure 4 of construction method]
FIG. 8A is a front view showing a state in which a cover member is attached to the cover frame 80. FIG. 8B is a side view showing a state where a cover member is attached to the cover frame 80. As shown in FIGS. 8A and 8B, in step 4, the cover member 90 is attached around the cover frame 80. The cover member 90 includes a front cover 92 that covers the front surface of the cover frame 80, side covers 94 and 96 that cover the space between the vertical frames 82 and 84 and the outer wall surface 60, and an upper cover 98 that covers the top surface of the horizontal frame 86. And a lower cover 99 that covers the bottom of the cover frame 80.

  The cover member 90 is attached so as to cover the front surface, the left and right side surfaces, and the top and bottom surfaces of the cover frame 80 by being coupled to the left and right vertical frames 82 and 84 and the horizontal frame 86 of the cover frame 80.

  The cover member 90 has a dustproof / waterproof structure, protects the vibration damping device 10 housed therein from dust and wind and rain, and prevents rainwater from entering through the openings 62 and 64 of the outer wall surface 60.

  In the above description, the renovation work for installing the vibration damping device 10 on the outer wall surface 60 of an existing building has been described. Of course, the present invention can also be applied to the case of installing in a newly built house.

  Of course, the vibration damping device of the present invention can be applied not only to the outer wall surface of the building but also to the wall surface inside the building.

  Moreover, since the opening 62 and 64 formed in a wall surface may be comparatively small, the damping device of this invention is not restrict | limited to the material of the wall surface, For example, it can be installed also with a tin, a wooden structure, and concrete.

  In this embodiment, in the structure of the prior art document, when horizontal vibration is input, the upper transmission member and the lower transmission member are relatively displaced in the horizontal direction and are connected by a hydraulic damper. Since the upper transmission member and the lower transmission member receive a force that causes the upper transmission member and the lower transmission member to rotate so as to be inclined with respect to the upper beam and the lower beam, the fastening strength by the fastening member is prevented so that the upper transmission member and the lower transmission member do not float from the upper beam and the lower beam. There is a problem that the installation work takes time to increase the height. However, in the present embodiment, the upper horizontal portion 30B2 of the upper mounting member 30 contacts the lower surface of the upper spacer 34, and the lower horizontal portion 32B2 of the lower mounting member 32 contacts the upper surface of the lower spacer 36. The force to rotate the upper transmission member 24 and the lower transmission member 26 when the relative displacement between the upper transmission member 24 and the lower transmission member 26 is attenuated by the damper 28 can be suppressed. The number of fastening members that fasten the attachment member 32 to the upper spacer 34 and the lower spacer 36 can be reduced to improve the workability of installation work on site. Furthermore, the openings 62 and 64 required for the outer wall surface 60 can be installed with a minimum opening area for inserting the upper and lower spacers 34 and 36 and the upper and lower horizontal portions 30B2 and 32B2. The structure is excellent in workability for seismic retrofit because it requires a minimum amount of time and can minimize the external exposure of columns and beams during implementation. Moreover, since the opening area of the openings 62 and 64 provided in the outer wall surface 60 is small, it can be implemented with almost no reduction in heat insulation and weather resistance.

10 Damping device 14 Lower beam 18 Upper beam 20 Column 24 Upper transmission member 26 Lower transmission member 28 Hydraulic damper 30 Upper mounting member 30A, 32A First fastening portion 30A1, 30B1, 32A1, 32B1 Vertical portion 30A2, 30B2, 32A2, 32B2 Horizontal portion 30B, 32B Second fastening portion 30C, 32C Joint portion 30C1 First fastening portion 30C2 Second fastening portion 30D, 30E Small hole 32 Lower mounting member 34 Upper spacer 36 Lower spacer 42 Cylinder 44 Piston rod 46, 48 Bracket 50, 52, 54, 56 Fastening member 60 Outer wall surface 62 Upper opening 64 Lower opening 70 Upper cover support member 72 Lower cover support member 80 Cover frame 82, 84 Vertical frame 86 Horizontal frame 88 Holding member 90 Cover member 92 Front cover 94, 96 Side cover 98 Top cover 9 bottom cover

Claims (2)

An upper transmission member provided outside the wall surface of the structure, to which horizontal vibration of the upper beam of the structure is input;
A lower transmission member provided on the outside of the wall surface, into which horizontal vibrations of a lower beam of the structure are input;
A damper for attenuating relative displacement due to vibration between the upper transmission member and the lower transmission member;
An upper spacer fixed to a side surface of the upper beam on the wall surface side;
A lower spacer fixed to the side surface of the wall surface of the lower beam;
An upper horizontal portion that contacts the lower surface of the upper spacer, and an upper vertical portion that is fastened to a side surface of the upper spacer on the wall surface side, and an upper mounting member that attaches the upper transmission member to the upper beam;
A lower mounting portion that has a lower horizontal portion that contacts the upper surface of the lower spacer and a lower vertical portion that is fastened to a side surface on the wall surface side, and that attaches the lower transmission member to the lower beam. Damping device. On the outer wall surface of the structure, an upper opening is formed at a position facing the upper beam, and a lower opening is formed at a position facing the lower beam,
The upper spacer is attached to the side surface of the upper beam from the upper opening,
2. The vibration damping device according to claim 1, wherein the upper spacer is attached to a side surface of the lower beam from the lower opening.

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