JP2002309798A - Damping wall structure - Google Patents

Abstract

(57) [Abstract] [Problem] To use a large number of non-structural plate materials installed in a building to provide a small amount of vibration and to control the damping structure, and to provide a low-cost, unlimited installation place. Provide a damping wall structure. SOLUTION: A plate member 18 made of a non-structural member is provided on a part of a building 1 via a vibration damping member 16. The vibration damping member 16 is mounted on a side surface of the plate 18. Glass is used for the plate 18. A part of the building 1 includes an outer wall portion, a partition portion, a space between beams 14 or columns 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a damping wall structure interposed in a building to suppress vibration.

[0002]

2. Description of the Related Art Japanese Patent Laid-Open Publication No.
JP-A-303714 discloses a vibration damping structure in which a fiber-reinforced and hardened material is interposed between a building frame and a precast concrete plate (hereinafter referred to as a PC plate) provided as a structure. Specifically, a PC board forming a wall surface is arranged in a construction plane surrounded on all sides by beams and columns forming a skeleton, and the upper and lower peripheral surfaces of the PC board are placed between two upper and lower beams opposite to each other. And a fiber reinforced mortar interposed therebetween. In this vibration damping structure, when a substantially horizontal relative displacement occurs between beams located above and below due to an earthquake or the like, the fiber reinforced mortar interposed between the PC plate and the beams is deformed in the shearing direction. Since this fiber reinforced mortar has high toughness, its hysteresis damping property absorbs vibration energy, suppresses relative displacement between the PC board and the beam, and suppresses vibration of the skeleton.

[0003]

However, in the above-described conventional vibration damping structure, the PC board provided on the surface of the structure via the fiber reinforced mortar is a structural body.
The board is required to have rigidity and strength that can withstand wind pressure and seismic force as well as its own weight and the weight of the load. Therefore, the above-mentioned damping structure is applied to a bearing wall or the like. However, since the placement of the bearing wall is structurally limited, the degree of freedom in design is low, and it is difficult to obtain desired damping performance. Further, the fiber reinforced mortar interposed between the PC plate and the beam forming the wall surface has a poor restoring property, so that there is also a problem that repeated use is difficult.

In view of the foregoing, the present invention has been made in view of the above-mentioned conventional problems, and has a vibration damping structure using a small number of non-structural members provided in a building to bear a light load and An object of the present invention is to provide an inexpensive vibration damping wall structure in which the installation place is not limited.

[0005]

In order to achieve the above object, in the vibration damping wall structure of the present invention, a plate material which is a non-structural member is provided on a part of a building via a vibration damping member made of a viscoelastic body. It is characterized by the following.

According to the present invention, since a viscoelastic body is interposed between a part of a building and a plate, vibration energy input to the building due to an earthquake or the like is absorbed by the viscosity of the viscoelastic material. Therefore, vibration can be attenuated.

Further, since the above-mentioned plate members are constituted by a large number of non-structural members provided in a building, a load acting on each plate member due to vibration is dispersed. Therefore, each plate member can be a non-structural member, and the structural strength of the building does not decrease due to the arrangement position of the plate member. For this reason, the arrangement position of the plate material can be freely laid out without restriction, and the construction cost can be reduced because a new structural member having high rigidity and strength is not required as the plate material.

When the vibration damping member is mounted on the plate material from the side, the vibration damping member undergoes shear deformation in accordance with the displacement of the plate material, and has a sufficient vibration damping function to efficiently absorb vibration energy. can do.

Further, when the plate is made of glass,
This damping wall structure can be applied to a glass window of a building, and light can be taken while having a damping function. In particular,
In consideration of the feeling of openness and lighting, even in a building having a large outer peripheral area covered with glass, the glass window can be provided with a vibration damping function. Therefore, it is not necessary to use a wall material that shields the structure surface in order to provide a vibration damping function, and a more open space can be realized.

[0010] The part of the building may be an outer wall of the building, a partition, a space between beams, or between columns.

[0011]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is an exploded perspective view showing a first embodiment of the vibration damping wall structure of the present invention.

As shown in FIG. 1, the damping wall structure according to the first embodiment of the present invention comprises two adjacent columns 12, two upper and lower beams 14 bridged therebetween, 12 and beam 1
Sheet glass 18 provided on the surface formed by 4
And a support member 20 for supporting the plate glass 18 on the columns 12 and the beams 14, and a viscoelastic body 16 serving as a vibration damping member interposed between the support member 20 and the plate glass 18. In the present embodiment, for example, Scotchdamp (registered trademark: VEM manufactured by Sumitomo 3M Limited) is used as a preferable viscoelastic body 16.

The plate glass 18 is formed to be slightly smaller than the area of the building surface to allow deformation of the building frame due to an earthquake or the like, and has four edges parallel to the pillars 12 and the beams 14 on both surfaces thereof. Near the center of the viscoelastic body 1
6 are adhered.

The support member 20 is made of an L-shaped steel material, and one plate portion forming the L shape is adhered to the plate glass 18 by the viscoelastic body 16 and the other plate portion is connected to the column 12 and the beam 14.
Are fixed by well-known means.

That is, the plate glass 18 provided in the structure composed of the columns 12 and the beams 14 has its edges sandwiched from both sides by a support member 20 via a viscoelastic body 16. 20 is fixed to the column 12 and the beam 14 and the vibration damping wall 1
0 is formed.

When vibration is input to the building due to an earthquake, wind pressure, or the like, the upper and lower beams 14 are displaced between layers, and the structure is sheared in the horizontal direction, and the sheet glass 18 rotates in the vertical direction. At this time, the viscoelastic body 16 interposed between the plate member 18 and the support member 20 provided on the column 12 and the beam 14
Is hysterically deformed in the shear direction and absorbs vibration energy, so that vibration can be attenuated. Especially sheet glass 18
Since many non-structural members such as are provided in the building, it is possible to disperse the load acting on each non-structural member due to vibration, thereby reducing the load on each non-structural object, The structural strength of the building does not decrease depending on the arrangement position of the plate material.

Further, since the plate glass 18 forming the plate material is attached from the side by the viscoelastic body 16 adhered to the wall surface thereof, the viscoelastic body 16 is moved according to the displacement of the plate glass 18.
In this case, shear deformation easily occurs, and a sufficient vibration damping function is provided, so that vibration energy can be efficiently absorbed.

Further, since the plate material is the plate glass 18,
For example, when this damping wall structure is applied to an outer wall of a building, it is possible to provide a damping function while ensuring lighting inside the building. In particular, even if almost the entire peripheral surface is covered with glass as in a recent building, the outer wall portion made of the glass can be provided with a vibration damping function, so the glass window is closed only for providing the vibration damping wall. There is no necessity, and sufficient lighting can be ensured and a good appearance can be maintained.

As a modification of the first embodiment, the same operation and effect can be obtained by providing a viscoelastic body 16 over the entire periphery of the edges of the sheet glass 18 as shown in FIG.

Hereinafter, another embodiment of the present invention will be described. The overall schematic structure is substantially the same as the structure of the above-described first embodiment. Only the differences will be described.

In the second embodiment of the present invention, as shown in FIGS. 3 to 5, the frame 22 is fixed to a building 1 surrounded by columns 12 and beams 14 and fixed thereto. Viscoelastic body 16
A wall surface of the plate glass 18 is adhered to the wall. In this damping wall structure, the frame 22 and the sheet glass 1
8 and the glass wall unit 24 integrated via the viscoelastic body 16 can be preassembled in a factory or the like and carried into the construction site, so that work on the site is reduced, workability is improved, and the construction period is shortened. And glass sheet 1
8 can be easily replaced even if it is damaged.

In this glass wall unit 24, 2
It is also possible to use two frame members to sandwich the viscoelastic body 16 on both sides of the plate glass 18.

Further, since the damping wall 10 has no application as a structure, it can be laid out at any position regardless of the frame structure. In particular, by forming the damping wall into parts as described above, the damping wall can be applied as the partition wall 26 as shown in FIG. 6, and can be moved to a desired place as needed.

Further, as shown in FIG. 7, when the frame 22 and the edge of the blind grid 28 are placed between the small beams 14a so as to overlap with each other, even if the building is a Japanese style building, the atmosphere of the building is not impaired. A vibration function can be provided.

FIGS. 8 and 9 show a third embodiment.
The damping wall structure of the present invention is suspended from a frame 60 as a curtain wall 58. At this time, the viscoelastic body 16 is placed between the upper and lower wall panels 54 and 56 and the plate glass 18.
If they are brought together into the construction site with the interposition of them, installation work on the site becomes easy, and if they are brought into the site in a state where they are separated, transport work and handling on the site become easy and easy to handle.

FIGS. 10 and 11 show a fourth embodiment, in which the damping wall structure of the present invention is applied to a double window 34 provided between a hanging wall 30 and a waist wall 32 of a building. . This places a plurality of glass sheets 18 along the hanging wall 30 and the waist wall 32 between adjacent columns 12. The supporting member 20 is adhered to the upper and lower edges of both sides of the plate glass 18 via the viscoelastic body 16 with the viscoelastic body 16.
By fixing “0” to the hanging wall 30 and the waist wall 32, respectively, a vibration damping function can be provided without impairing the open feeling of the continuous windows 34. Here, if the setting block 50 is interposed between the plate glass 18 and the waist wall 32 and supported from under the plate glass 18, the plate glass
8 can be maintained at a position away from the waist wall 32, so that it can be easily constructed. The setting block 50 is applicable not only to the present embodiment but also to other embodiments.

FIGS. 12 to 14 show another embodiment of the fixing method of the sheet glass 18 in the above embodiment, wherein bolts 36 penetrating the sheet glass 18 are used, and each bolt 36 is L-shaped from both sides of the sheet glass 18. Are supported by the upper and lower beams 14 using the support member 38 of FIG.

The glass sheet 18 is provided with a plurality of through-holes 40 at the periphery thereof, penetrating the wall surface thereof, along the edge of the glass sheet 18. The through hole 40 has a diameter sufficiently larger than the outer diameter of the screw portion of the bolt 36, and an annular buffer ring 42 interposed between the bolt 36 and the inner peripheral surface is inserted inside the through hole 40.

The support member 38 has an insertion hole 44 having a diameter sufficiently larger than the outer diameter of the screw portion of the bolt 36 in the plate portion of the L-shaped plate portion disposed on the plate glass 18 side.

The support 38 is abutted from both sides of the glass sheet 18 via the viscoelastic body 16, and the bolt 36 is penetrated therethrough and fixed by the cap nut 46. At this time, the washer 48 is interposed between the support member 38 and the bolt head and the cap nut 46 so that the bolt 3
It is desirable to disperse so that the fastening force due to 6 is not concentrated.

According to the present embodiment, the support 38 is provided for each bolt 36, and the area covered with the plate glass 18 by the support 38 is reduced as much as possible, so that a more open space can be realized. Further, as shown in FIGS. 15 to 17, when the support member 38 and the viscoelastic body 16 provided for each bolt 36 are provided only on one surface of the glass plate 18 and fixed by the countersunk bolt 52 from the opposite side, they protrude from the wall surface. It is possible to form a window having nothing and a clean and good appearance.

In the present embodiment, the sheet material is the sheet glass 1
The number is set to 8, but is not limited thereto, and may be a partition wall material or a general outer wall material.

[0033]

As described above, in the vibration damping wall structure of the present invention, the vibration can be suppressed because the vibration damping member is interposed between a part of the building and the plate.

Since a large number of non-structural members provided in the building are used as the plate material constituting the vibration damping wall, no new structure is required, so that the construction cost can be reduced. Further, since a large number of damping walls are provided, the load is dispersed and the load acting on each is reduced, so that the damping walls can be laid out freely.

Further, since the viscoelastic member is mounted from the side, shear deformation occurs in the vibration damping member in accordance with the displacement of the plate member, so that vibration energy can be efficiently absorbed.

Further, when the plate is made of glass,
A glass window having a vibration damping function can be formed, and a space that can be lit and has an open feeling can be formed.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a first embodiment of a vibration damping wall structure of the present invention.

FIG. 2 is an exploded perspective view showing a modification of the first embodiment.

FIG. 3 is a front view showing an embodiment of a building to which the damping wall structure of the present invention is applied.

FIG. 4 is a front view showing an application example of the damping wall structure of the present invention to a glass wall unit.

FIG. 5 is a rear view showing the glass wall unit.

FIG. 6 is a front view showing an example in which the present invention is applied to a partition wall of a vibration damping wall structure.

FIG. 7 is a front view showing an application example of the damping wall structure of the present invention to a Japanese-style building.

FIG. 8 is a cross-sectional view showing an application example of a curtain wall having a damping wall structure according to the present invention.

FIG. 9 is a front view showing an application example of a curtain wall having a vibration damping wall structure of the present invention.

FIG. 10 is a front view showing an application example of the damping wall structure of the present invention to a continuous window.

FIG. 11 is a perspective view showing an application example of the damping wall structure of the present invention to a double window.

FIG. 12 is a perspective view showing another fixing method of the sheet glass in the present invention.

FIG. 13 is a side sectional view of FIG.

FIG. 14 is an enlarged perspective view of a fixing portion in FIG.

FIG. 15 is a perspective view showing a modification of the method for fixing a glass sheet according to the present invention.

FIG. 16 is a side sectional view of FIG.

FIG. 17 is an enlarged perspective view of a fixing portion in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Building 12 Column 14 Beam 16 Viscoelastic body (damping member) 18 Sheet glass

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Yasunori Hashimoto 2-15-2 Konan, Minato-ku, Tokyo Obayashi Corporation Tokyo Head Office (72) Inventor Satoshi Uezawa 1-1-1, Suehirocho, Tsurumi-ku, Yokohama-shi, Kanagawa Asahi Glass Co., Ltd. (72) Inventor Kiyoshi Okuma 3-8-8 Minamihashimoto, Sagamihara-shi, Kanagawa F-term in Sumitomo 3M Limited (Reference) 3J048 AA01 AC05 BD08 DA06 EA38

Claims (4)

[Claims] 1. A damping wall structure, wherein a plate material which is a non-structural member is provided on a part of a building via a damping member made of a viscoelastic body. 2. The damping wall structure according to claim 1, wherein the damping member is attached to the plate from a side surface thereof. 3. The damping wall structure according to claim 1, wherein said plate member is made of glass. 4. The building according to claim 1, wherein the part of the building is an outer wall of the building, a partition, a space between beams or columns.
4. The vibration-damping wall structure according to any one of Items 1 to 3.