JP2002004630A - Installation structure for aseismatic damper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To install an aseismatic damper without wholly covering a body frame. SOLUTION: In installing this aseismatic damper 1 on a building, steel meshes of high rigidity are respectively fixed on a lower part of an upper beam and an upper part of a lower beam composing a building frame, and the aseismatic damper 1 is installed between the steel meshes. In installing the damper 1 on an existing building, a steel frame 10 is fixed on an outer wall surface, the steel meshes 11 of high rigidity are respectively fixed to an upper side and a lower side of the steel frame 10, and the aseismatic damper 1 is installed between the steel meshes 11. The steel mesh 11 is formed of diagonals 11a and 11b in two directions crossing each other and each inclined to a horizontal surface.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for installing a vibration damper in a building.

[0002]

2. Description of the Related Art FIG. 4 shows an example of a structure in which a vibration damper is installed in a new building or an existing building. FIG. 4 shows a seismic damper 1 using plastic deformation of extremely mild steel for a column 2 for an existing RC building with high rigidity and poor deformation performance.
This is an example of a case in which the steel frame 5 is installed inside a frame 4 formed by the steel frame 3 and the beam 3. FIG. The damping damper 1 is installed between the upper part of the steel frame 5 and the brace 6
(B) shows a high rigidity RC cubic wall 7 provided between the upper and lower beams 3 in a vertically divided state, and the damping damper 1 is installed between them, and (c) shows a case in (a). Brace 6
In place of this, a steel wall 8 reinforced by ribs is used, and the vibration damper 1 made of extreme mild steel is plastically deformed due to interlayer displacement during an earthquake and shear yields, thereby absorbing vibration energy. This will provide a damping effect.

[0003]

When the vibration damper 1 is installed inside the skeleton frame 4 by the above-described structure, the skeleton frame 4 is substantially closed, so that there is no window or the like. Cannot be provided, and when applied to an existing building, it may be necessary to close the existing windows, which may result in unfavorable lighting, ventilation, and views.

[0004] In view of the above circumstances, an object of the present invention is to provide an effective structure that can prevent the frame from being completely closed due to the installation of the vibration damper.

[0005]

According to the first aspect of the present invention, there is provided a structure for installing a vibration damper in a building, comprising a lower portion of an upper beam and an upper portion of a lower beam constituting a skeleton frame. For this purpose, highly rigid steel meshes are fixed to each other, and a vibration damper is installed between the steel meshes.

According to a second aspect of the present invention, there is provided a structure for installing a vibration damper in an existing building, wherein a steel frame is fixed to an outer wall, and high rigidity steel is provided above and below the steel frame. It is characterized in that meshes are fixed and a vibration damper is installed between the steel meshes.

A third aspect of the present invention is characterized in that the steel mesh according to the first or second aspect of the present invention is formed of two-way diagonal members which cross each other and are both inclined with respect to the horizontal.

[0008]

1 to 3 show an embodiment of the present invention. The present embodiment is applied to a case where an anti-seismic damper 1 is installed on an outer wall surface of an existing RC building, and as shown in FIG.
A steel frame 10 made of a steel frame is fixed on the outside of the steel mesh, and steel meshes 11 are fixed on the upper and lower sides of the steel frame, respectively. It was made. That is,
This embodiment is based on a structure in which the vibration damper 1 is installed between the cubic walls 7 shown in FIG. 4B, and by using a high-rigidity steel mesh 11 instead of the cubic walls 7. It is possible to leave the existing window 12 as it is without closing it. FIG. 1A shows an example in which a single damping damper 1 is provided at the center of a steel frame 10, and FIG. 1B shows an example in which two damping dampers 1 are provided side by side. .

As shown in FIGS. 2 and 3, the steel mesh 11 is composed of two diagonal members 11a, 1b, which are perpendicular to each other and are both inclined at an angle of 45 degrees with respect to the horizontal.
1b and its surrounding frame member 11c, and the frame member 11c has bolt holes 11d formed at important places. The steel mesh 11 may be made of cast iron or cast steel manufactured in advance according to a predetermined standard, or may be manufactured by combining strip steels (flat bars) as the diagonal members 11a and 11b. In any case, it is necessary to have sufficient rigidity to fix the vibration damper 1 to the building, that is, sufficient rigidity to operate the vibration damper 1 due to interlayer displacement during an earthquake. Yes, the material, the thickness of the diagonal members 11a and 11b, the size and shape of the mesh, the thickness, and the like may be set so as to obtain desired rigidity.

The steel mesh 11 is formed by a lower surface of an upper horizontal member 10a and a lower horizontal member 10b of a steel frame 10.
H-shaped steel 13 for attaching the vibration damper 1 is fixed to the upper surface of the upper steel mesh 11 and the lower steel mesh 11 by bolts.
Are bolted and fixed, respectively.
3, the damping damper 1 is fixed. A channel member 14 is mounted on the side of each steel mesh 11 and fixed by bolting. The channel member 14 is an H-shaped steel 13 and an upper horizontal member 10 a of the steel frame 10.
Alternatively, it is fixed to the lower horizontal member 10b by bolting. The above-mentioned H-section steel 13 and channel material 1
4 has a function of reinforcing the steel mesh 11. Reference numeral 15 denotes a decorative aluminum pipe material attached for the purpose of blindfolding the vibration damper 1, and reference numeral 16 denotes a decorative member attached to the H-shaped steel 13 so as to be continuous with the steel mesh 11.

According to the above structure, the vibration damper 1 can be installed on the outer wall surface of an existing building with a structure substantially similar to that of the conventional cubic wall 7 shown in FIG. In addition, at the time of an earthquake, the vibration damper 1 can be reliably operated to obtain a vibration control effect. According to the structure of the present embodiment, the steel mesh 11 forms a transparent wall by adopting the steel mesh 11 in place of the conventional RC-made cubic wall 7, so that it is shown in FIG. As described above, even if this is attached to the outside of the existing window 12, the window 12 is not closed, and the lighting, ventilation, and view through the existing window 12 and the steel mesh 11 can be secured as it is, A desirable appearance can be obtained in terms of design, and the steel mesh 11 can also have a function of a security grid or a screen for blindfold.

In particular, since the steel mesh 11 is formed of two diagonal members 11a and 11b that are inclined with respect to the horizontal, the diagonal members 11a and 11b function as braces and are naturally excellent. Horizontal rigidity can be obtained, and therefore, it can be made sufficiently lightweight. Of course, the steel mesh 11 can be manufactured at a sufficiently low cost if mass-produced according to a predetermined standard.

Although the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications and applications as listed below are possible.

In the present invention, the vibration damper 1 is shown in FIG.
In addition to the installation in the form shown in FIG. 1B, it is of course possible to install in another form. For example, depending on the position and size of the existing window 12, the two sets shown in FIG. It is also conceivable to install the steel mesh 11 at intervals. Alternatively, it is also possible to install a steel mesh 11 without gaps in the entire interior of the steel frame 10 and provide one or a plurality of vibration dampers 1 therebetween. Even if 11 is installed, lighting, ventilation, and the view are not spoiled.

The present invention can be applied not only to an existing building but also to a newly constructed building. Of course, it is also possible to install via a steel frame 5 (or directly between the upper and lower beams 3 if possible). Even when installed indoors, since the steel mesh 11 forms a transparent wall, it is less likely to impair the livability and usability as compared with the case of the conventional RC-made cubic wall 7, and has a design. It can also be preferable.

The damping damper 1 is not limited to one using the above-mentioned shear yielding of mild steel, and other types of damping dampers such as viscous dampers and viscoelastic dampers can be employed.

The steel mesh 11 is preferably made of diagonal members 11a and 11b which are orthogonal to each other and each form an angle of 45 degrees with the horizontal as in the above embodiment, but the inclination angles of the diagonal members 11a and 11b are preferable. The angle is not limited to 45 degrees, and both oblique members may form a rhombus mesh that intersects at an arbitrary intersection angle. Further, when a desired rigidity is obtained, a horizontal member and a vertical member may be used. This does not hinder the formation of a vertical or horizontal grid.

The decorative aluminum pipe 15 provided in the above embodiment and the decorative member 1 attached to the H-shaped steel 13
6 is a design element, and may be omitted if unnecessary. Conversely, if necessary, any appropriate decorative or design member may be used as long as the function of the vibration damper 1 is not impaired. Needless to say, it can be added to.

In the above embodiment, the H-shaped steel 13 and the channel material 1 fixed to the steel mesh 11 by bolting are used.
It is also conceivable that 4 is integrally formed in advance on the outer peripheral portion of the steel mesh 11 as a reinforcing frame. Conversely, if the steel mesh 11 itself can secure sufficient rigidity, the channel member 14 and the H-shaped steel 13 are omitted, and the steel mesh 11 is provided on the steel frame 10 (or a steel frame provided inside the building). 5 or the beam 3) and directly fixing the vibration damper 1 to the steel mesh 11 can be considered as the most basic structure.

[0020]

According to the first aspect of the present invention, a high-rigidity steel mesh is fixed to each of the upper and lower beams constituting the skeleton frame of the building, and a vibration damper is installed between the steel meshes. Therefore, the damping damper can be installed on the building with a structure substantially similar to that of the conventional cubic wall, and in the event of an earthquake, the damping damper can be reliably operated to obtain the damping effect. In addition to being able to do so, the steel mesh forms a transparent wall, so that it is less likely to impair the livability and ease of use as compared with a conventional mere cubic wall, and can be made favorable in design.

According to a second aspect of the present invention, a steel frame is fixed to an outer wall of an existing building, a highly rigid steel mesh is fixed inside the steel frame, and a vibration damper is interposed between the steel meshes. Installed, so that the damping damper can be securely and reliably installed on the outer wall of the existing building, and even if the steel mesh is attached to the outside of the existing window, it will not block it. Lighting, ventilation, and views can be secured, and a favorable appearance can be obtained in terms of design.

According to a third aspect of the present invention, the steel meshes are arranged so as to intersect with each other and are all inclined with respect to the horizontal.
Since the diagonal members are formed by the diagonal members in the directions, the diagonal members function as braces and naturally ensure excellent horizontal rigidity.

[Brief description of the drawings]

FIG. 1 is a diagram showing an installation structure of a vibration damper according to an embodiment of the present invention.

FIG. 2 is an enlarged view of FIG.

FIG. 3 is a view showing details of the steel mesh.

FIG. 4 is a view showing an installation structure of a conventional vibration damper.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vibration damper 2 Column 3 Beam 4 Frame 4 Steel frame 10a Upper horizontal member 10b Lower horizontal member 11 Steel mesh 11a, 11b Diagonal member 13 H-section steel 14 Channel member

Claims (3)

[Claims] 1. A structure for installing a vibration damper in a building, wherein high-rigidity steel meshes are respectively applied to a lower part of an upper beam and an upper part of a lower beam constituting a skeleton frame. An installation structure of a vibration damper, which is fixed and a vibration damper is installed between the steel meshes. 2. A structure for installing a vibration damper in an existing building, wherein a steel frame is fixed to an outer wall surface, and high-rigidity steel meshes are fixed above and below the steel frame, respectively. A vibration damper installation structure characterized by installing a vibration damper between the steel meshes. 3. The installation structure of a vibration damper according to claim 1, wherein the steel mesh is formed of two-way diagonal members that cross each other and are all inclined with respect to the horizontal. The installation structure of the vibration damper characterized by the following.