JP2000179183A - Vibration control wall and its manufacture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a vibration control wall, in which the expansion and deformation of a pair of plates of a vessel constituting the vibration control wall can be prevented when a viscous fluid is injected to the vibration control wall at high pressure and which has stable damping performance. SOLUTION: The vibration control wall comprises a vessel 20, in which an upper section is opened and a viscous fluid 12 is injected, and an inner plate 30 placed into the vessel 20 while having a space, the vessel 20 has a pair of plates oppositely faced while holding a specified space by spacer means 40, the spacer means 40 are penetrated into the inner plate 20 while loose holes 31 in size, in which both the vessel 20 and the inner plate 30 are not brought into contact when both are displaced relatively, are bored, reinforcing members 51-54 are contacted oppositely and fixed on the outsides of a pair of the plates through through-bolts 50 penetrated to the fixing bolts of the spacer means 40, and caps 27, 27 are removed and the viscous fluid 12 is injected into the vessel 20.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration control wall capable of attenuating a ground motion during an earthquake, and more particularly, to stabilizing the quality without injecting a viscous fluid into a container of the vibration control wall. And a method of manufacturing the same.

[0002]

2. Description of the Related Art As shown in FIG. 9, a conventional vibration damping wall 1 has a container 3 attached to a structural member 2 such as a beam on a lower floor via a flange 3a, and a space in the container 3. The inner plate 5 is provided in a non-contact state and is attached to a structural member 4 such as a beam on an upper floor via a flange portion 5a, and a viscous fluid 6 stored in the container 3. Then, when relative displacement due to vibration occurs between the upper and lower structural members 4 and 2 due to an earthquake or the like, the inner plate 5 moves in the viscous fluid 6, and the vibration is attenuated by viscous resistance at this time to control the vibration. .
When the viscous fluid 6 is injected into the damping wall 1, the temperature of the viscous fluid is increased in order to lower the viscosity, and the caps 7, 7 of the injection holes provided at the lower part of the container 3 are removed to apply a high pressure to the viscous fluid 6. It is injected over.

[0003]

However, when the high-temperature viscous fluid is injected under high pressure as described above, there is a problem that the two flat plates 3b, 3b constituting the container are likely to expand outward due to the pressure. . When the flat plate that constitutes the container swells outward, the distance between the inner plate and the inner plate located inside increases, and the viscous resistance of the container and the inner plate during relative movement during an earthquake or the like decreases, and A problem arises in that the wall damping effect is reduced. In addition, since the swelling of the flat plate constituting the container changes depending on the injection pressure and the injection time, there is a problem that the damping performance of the individual damping walls is different and the quality is not stable.

[0004] The present invention has been made to solve the above-mentioned problems, and when a viscous fluid is injected into a container,
It is an object of the present invention to provide a damping wall having a constant damping performance and a stable quality, and a method of manufacturing the same, in which the container is not deformed even when the injection pressure, the injection temperature, and the injection time change.

[0005]

In order to achieve the above-mentioned object, a vibration damping wall according to the present invention is provided with a container having an opening at an upper portion and into which a viscous fluid is injected, and a space inside the container. And a damping wall comprising an inner plate positioned thereon, wherein the reinforcing member is fixed to the outside of the container, and after the viscous fluid is injected into the container, the reinforcing member is removed.

In the above-described vibration damping wall, the container has a pair of flat plates opposed to each other with a predetermined interval maintained by a spacer means. A loose hole having a size such that the two do not come into contact with each other when the relative movement is made is formed. After the fluid is injected, the reinforcing member is removed.

The spacer means comprises a fixing bolt and a nut having a through hole at the center and a cylindrical member, and the fixing means includes a through bolt inserted into the through hole of the fixing bolt, and the reinforcing member is formed by the through bolt. It is convenient to fix it.

[0008] The method for manufacturing a vibration damping wall according to the present invention includes:
It consists of a container into which the upper part is opened and into which a viscous fluid is injected, and a damping wall composed of an inner plate located at an interval in the container, and the container is held at a predetermined interval by spacer means. It has a pair of flat plates facing each other, and the inner plate is provided with a loose hole through which the spacer means penetrates and the container and the inner plate do not come into contact with each other when the inner plate relatively moves. A reinforcing member is brought into contact with and fixed to the outside of the pair of flat plates via a fixing means, and the viscous fluid is injected into the container, and then the reinforcing member is removed.

According to the above-described vibration damping wall and the method of manufacturing the same, even if the viscous fluid is injected under high pressure, the container into which the viscous fluid is injected has the reinforcing member fixed. Since it is reinforced, it does not deform, the distance between the container and the inner plate does not change, the damping performance is constant, and it is possible to provide a vibration control wall with stable quality.

[0010]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows an embodiment of a damping wall, and FIG.
1 is a front view, (b) is a right side view of a state in which a part of (a) is broken, FIG. 2 is an enlarged sectional view taken along line AA in FIG. 1, and FIG. 3 is a line BB in FIG. It is an expanded sectional view along. In FIGS. 1 to 3, the vibration damping wall 10 is composed of a container 20 in which an upper part is opened and a viscous fluid 12 is injected therein, and an inner plate 30 which is located in a non-contact state at an interval in the container 20. Be composed.
In the damping wall 10, the container 20 is fixed to the beam on the lower floor via the bottom plate 25, and the upper plate 13 of the inner plate 30 is fixed to the beam on the upper floor. Then, during an earthquake, a deformation occurs such that the rectangular space formed by the columns and the beams becomes a parallelogram, so that the relative movement of the inner plate 30 with respect to the container 20 is large in the horizontal direction and small in the vertical direction.

The container 20 is composed of a pair of flat plates 21, 22, a pair of side plates 23, 24, and a bottom plate 25, and has an open top. The upper part of the container 20 has a pair of flange plates 2.
6, 26 are fixed so that the opening area at the top is increased, and at the same time, they are reinforced. An injection hole is formed in the bottom of the container 20 on the surface of the flat plates 21 and 22, and the cap 2 is
It is closed by 7, 27. As for the flat plates 21 and 22 constituting the container 20, a vertical reinforcing member 28 is fixed at the center in the horizontal direction, and horizontal reinforcing members 29 and 29 are fixed at substantially the center in the vertical direction.

In this embodiment, the flat plates 21 and 22 are provided with flat plate spacer means 40 at 16 locations, and a pair of flat plates 2 and 22 are provided.
1 and 22 are configured to be opposed to each other while maintaining a predetermined interval by spacer means 40. Here, one spacer means 40 will be described in detail with reference to FIG. The spacer means 40 is composed of a spacer steel pipe 41 for defining the interval between the two flat plates 21 and 22 and a fixing bolt 42 and a nut 43 penetrating and fixing the center of the spacer steel pipe 41. 43 is two flat plates 2
1 and 22 are fixed through the viscous fluid 12 by welding.
Is designed not to leak when injected. In this way, the flat plates 21 and 22 are fixed at a constant interval corresponding to the length of the spacer steel pipe 41. Fixing bolt 42
Is provided with a through hole 44 at the center.

Next, the inner plate spacer means 45 will be described with reference to FIG. The spacer means 45 of the inner plate 30 is for allowing the inner plate 30 to move without directly contacting the two flat plates 21 and 22. In this example, a total of 16 spacers are provided at positions between the spacer means 40. Is provided. The spacer means 45 includes a spacer bolt 46 inserted from the flat plate 21 side of the inner plate 30 and a spacer nut 47 screwed to the spacer bolt 46 on the flat plate 22 side. The axial length of the spacer bolt 46 and the spacer nut 47 is set slightly smaller than the distance between the two flat plates 21 and 22 so that both end surfaces are formed smoothly, and the inner plate 30 is formed of two flat plates 21 and 22. , 22 so that the spacer bolt 46 and the spacer nut 47 can slide and move on the inner surface of the flat plate without directly contacting the inner surface of the flat plate.

The inner plate 30 located at a predetermined interval in the container 20 is configured to be relatively movable with the container 20 at the time of an earthquake or the like. An elliptical loose hole 31 is formed in the portion, and the spacer steel pipe 41 and the fixing bolt 42 of the spacer means 40 are located in the loose hole 31. The size of the oblong loose hole 31 is The size is set to a size that allows relative movement with the plate 30, that is, an oval that is large in the horizontal direction and small in the vertical direction. Note that the loose hole is not limited to an ellipse, but may be changed as appropriate, such as an ellipse.

The vibration damping wall according to the present invention has the above-described configuration, and a method of manufacturing the same will be described below with reference to FIGS. FIG. 4A is a front view showing a method of manufacturing a vibration damping wall according to the present invention, FIG. 4B is a right side view showing a state in which a part of FIG. 4A is broken, and FIG. It is an expanded sectional view which meets CC line of a). When injecting the viscous fluid 12 into the vibration damping wall 10, the through bolt 50 is inserted into a fixing bolt 42 having a through hole 44 formed at the center. Eight vertical square pipes 51 for pressing are vertically opposed to each other between the spacer means 40 of the flat plates 21 and 22, and eight horizontal square pipes 51 for holding are provided outside the vertical square pipe 51. Square pipe 5
2 are vertically contacted with the spacer means 40 therebetween.
Similarly, the vertical square pipe 53 is also brought into contact with the flat plate 22, the horizontal square pipe 54 is brought into contact with the outside thereof, and the clamp plate 5 is placed outside the horizontal square pipes 54.
5 is positioned and fixed by the through bolt 50 and the nut 56.

As described above, the reinforcing square pipes 51 and 53 are vertically positioned between the flat plate spacer means 40, and the horizontal square pipes 52 and 54 are positioned outside the reinforcing square pipes 51 and 53. The flat plates 21 and 22 between the spacer means 40 are reinforced by connecting and fixing. In this state, a viscous fluid injection pipe is connected to the injection hole, and the viscous fluid 12 is injected. Although the viscous fluid 12 is injected under high pressure, the flat plates 21 and 22 constituting the container 20 of the vibration damping wall 10 are reinforced by a large number of square pipes 51, 52, 53 and 54. The flat plates 21 and 22 are not bent outward by the pressure of the fluid 12.

The viscous fluid 12 is injected over a long period of time at a high pressure. When the viscous fluid 12 is filled in the container 20, the pipe for injection is removed and the caps 27, 27 are closed in the injection holes, and the viscous fluid 12 is closed. Is completed. As described above, since the reinforcing member is fixed using the through hole 44 of the spacer means 40, the reinforcing member can be efficiently supported in a short span even when the vibration damping wall 10 is large, and the reinforcing of the flat plates 21 and 22 is efficient. Well done.

In this way, the viscous fluid 12
Is injected, the through bolts 50 fixing the square pipes 51, 52, 53, 54 are removed, and the reinforcing square pipe is removed by removing the clamp plate 55. Square pipe 5
Since the injection of the viscous fluid 12 has already been completed even after removing 1, 52, 53 and 54, the flat plates 21 and 22 are maintained in a flat shape without deformation. For this reason, the distance between the containers 20 does not become large even between the spacer means 40, and the damping wall 10 can secure a predetermined damping performance, can avoid variation in quality, and can stabilize quality. Can be done.

The above-described damping wall 10 has a structure in which the spacer steel pipe 41 is fixed by the fixing bolt 42 and the nut 43 as the spacer means 40 of the flat plates 21 and 22.
As shown in FIG.
1, the fixed pipe 60 is inserted, the nuts 61, 61 are screwed into screw portions formed at both ends of the fixed pipe 60, and the flat plates 21, 22 and the nuts 61, 61 are fixed by welding. Good. In this case, the through bolt 50 is inserted into the through hole in the fixed pipe 60, and the through bolt 5
0, a reinforcing pipe can be attached in the same manner as in the above-described embodiment, so that the pair of flat plates 21 and 22 can be prevented from being deformed when the viscous fluid is injected.

FIG. 7A is a front view of a main part of another example in which another example of a reinforcing member is fixed to a vibration control wall, and FIG. 7B is an enlarged bottom view of the reinforcing member shown in FIG. 7A. is there. In this embodiment, instead of vertical reinforcing pipes, ribbed reinforcing plates 6 are used.
5 shows an example using. The reinforcing plate 65 is composed of a bottom plate 66 in contact with the flat plate 21 of the vibration damping wall 10 and three ribs 67 welded to the bottom plate 66, and reinforces the flat plates 21 and 22 between the spacer means 40 over a wide area. It can be carried out.

FIG. 8 is a sectional view of a main part of another example of the fixing means for fixing the reinforcing means of the flat plate, and a round pipe 70 is vertically in contact with a pair of flat plates 21 and 22 of the damping wall 10. A horizontal round pipe 71 contacts the outside of the round pipe, and the horizontal round pipes 71 pass through the through holes 44 of the fixing bolts 42 constituting the spacer means 40.
It is fixed by. The wire 72 is wound around one round pipe 71 and twisted outside the other round pipe 71 to fix both round pipes. In this example, the wire 72
The round pipe 71 as a reinforcing member can be easily fixed simply by winding and twisting, and the reinforcing member can be easily removed only by cutting the wire 72.

In the above-described embodiment, the reinforcing pipe is configured such that the vertical square pipe is first brought into contact with the vertical square pipe, and then the horizontal square pipe is positioned. It may be arranged to abut between the spacer means and then to position the vertical square pipe outside thereof. Also, the reinforcing pipe is not limited to square pipe,
A circular or other shaped pipe may be used. Further, the reinforcing member is not limited to the pipe, and may be a H-shaped steel, an angle material, a channel material, or the like.

[0023]

As described above, according to the present invention,
When injecting viscous fluid into the container, to inject the viscous fluid by fixing the reinforcing member to the flat plate that constitutes the container,
Even if the injection pressure, the injection temperature, and the injection time change, the container does not deform, and the damping performance of the damping wall is constant, so that the quality can be stabilized. By penetrating a through-hole in the spacer means for keeping the distance between the pair of flat plates constituting the container constant, and fixing the reinforcing means to the through-hole via fixing means, the viscous fluid injection into the flat plate between the spacer means is achieved. The deformation at the time can be efficiently prevented.

[Brief description of the drawings]

FIG. 1 shows an embodiment of a damping wall (a) is a front view,
(B) is a right side view in a partially broken state.

FIG. 2 is an enlarged sectional view taken along the line AA of FIG.

FIG. 3 is an enlarged sectional view taken along the line BB of FIG. 1;

4A and 4B show a method for manufacturing a vibration damping wall according to the present invention, wherein FIG. 4A is a front view, and FIG.

FIG. 5 is an enlarged sectional view taken along line CC of FIG. 4;

FIG. 6 is a cross-sectional view of a main part of another embodiment of the damping wall.

FIG. 7A is a front view of a main part in a state where another example of the reinforcing member is fixed to a vibration damping wall, and FIG. 7B is an enlarged bottom view of the reinforcing member shown in FIG.

FIG. 8 is a sectional view of a main part of another example of the fixing means for fixing the reinforcing means of the flat plate.

9A and 9B show a conventional damping wall, in which FIG. 9A is a schematic front view with a part cut away, and FIG. 9B is a longitudinal sectional view thereof.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 damping wall 12 viscous fluid 13 upper plate 20 container 21, 22 flat plate 23, 24 side plate 25 bottom plate 26 flange plate 27 cap 28 vertical reinforcing material 29 horizontal reinforcing material 30 inner plate 31 loose hole 40 spacer means 41 spacer steel pipe 42 fixing bolt 43 Nut 44 Through hole 45 Spacer means 46 Spacer bolt 47 Spacer nut 50 Through bolt 51, 52, 53, 54 Square pipe 55 Clamp plate 56, 61 Nut 60 Fixed pipe 65 Reinforcement plate 66 Bottom plate 67 Rib 70, 71 Round pipe 72 Wire

Claims (4)

[Claims] 1. A damping wall comprising a container having an open upper portion into which a viscous fluid is injected, and an inner plate located at an interval in the container, and a reinforcing member is provided outside the container. A damping wall, wherein the reinforcing member is removed after a member is fixed and a viscous fluid is injected into the container. 2. The container has a pair of flat plates opposed to each other with a predetermined distance kept by spacer means, and the inner plate is penetrated by the spacer means and both come into contact when the container and the inner plate move relative to each other. A loose hole having a size not to be formed is drilled, and a viscous fluid is injected into the container by fixing and fixing a reinforcing member to the outside of the pair of flat plates via fixing means penetrating the spacer means. The damping wall according to claim 1, wherein the reinforcing member is removed. 3. The spacer means includes a fixing bolt and a nut having a through hole at the center and a cylindrical member, and the fixing means includes a through bolt inserted into the through hole of the fixing bolt, and is reinforced by the through bolt. The damping wall according to claim 2, wherein the member is fixed. 4. A damping wall comprising a container having an open upper portion into which a viscous fluid is injected, and an inner plate located at an interval in the container, and the container is provided with a spacer means. It has a pair of flat plates facing each other with an interval, and a loose hole is drilled in the inner plate so that the spacer means penetrates and the container and the inner plate do not contact each other when the inner plate relatively moves, Vibration fluid is injected into the container by fixing a reinforcing member to the outside of the pair of flat plates via fixing means penetrating the spacer means, and then the reinforcing member is removed. The method of manufacturing the wall.