JP2534171B2 - Vibration suppression device for buildings - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building vibration suppressing apparatus capable of suppressing vibration of a structure due to wind force or seismic force.

[0002]

2. Description of the Related Art Conventionally, as a vibration control device for buildings,
As shown in FIGS. 8 to 11, the steel inner bracing component 15 extending in the longitudinal direction of the braces is provided in the holding hole extending in the bracing longitudinal direction in the steel outer bracing component 13 having a box-shaped cross section. Is arranged, and the viscoelastic material layer 6 is provided between the peripheral surface of the portion of the inner bracing component 15 disposed in the outer bracing component 13 and the inner peripheral surface of the outer bracing component 13. The vibration suppressing bracing member 17 is configured by interposing and fixing, and an expansion and contraction allowing gap 16 is provided between the inner portion of the outer bracing member 13 and the tip of the inner bracing member 15. , A vibration suppressing device in which both ends of the vibration suppressing braces 17 are connected to a central mounting plate 34 and a corner mounting plate 36 fixed to the frame 10 of the building by connecting pins 37 made of bolts. Has been done.

[0003]

In the case of the conventional vibration damping device for a building, the viscoelastic material layer 6 interposed between the outer bracing component 13 and the inner bracing component 15.
Since the area of the building is small, there is a problem that the damping effect of the building is small. It is conceivable to increase the number of the vibration suppressing bracing members 17 used in order to improve the vibration damping effect of the building, but in this case, it is uneconomical as well as being restricted by the plan of the building. The problem arises. In addition, in order to improve the vibration damping effect of the building, it is possible to increase the cross section of the vibration suppressing bracing member 17, but in this case, there is a problem that the plan of the building is restricted.

[0004]

In order to advantageously solve the above-mentioned problems, in the vibration suppressing device for a building according to the present invention, a plurality of first strip-shaped metal plates 1 are arranged in parallel at intervals. A space is provided on one side in the width direction of each first strip-shaped metal plate 1.
A plurality of second bolts 3 and two bolts 3.
The strip-shaped metal plates 4 are arranged in parallel at intervals, a spacer 5 is interposed at one side in the width direction of each second strip-shaped metal plate 4, and the second strip-shaped metal plates 4 are adjacent to each other. The viscoelastic material layer 6 is arranged between the first strip-shaped metal plate 1 and the second strip-shaped metal plate 4, and the tightening bolt 7 has the first strip-shaped outer plate. A long hole 8 provided in the other side portion of the metal plate 1 in the width direction and extending in the longitudinal direction of the strip-shaped metal plate;
The vibration suppressing bracing member 9 is formed by being inserted through one side portion of the strip-shaped metal plate 4 in the width direction and the spacer 5 interposed between the second strip-shaped metal plates 4, and the vibration suppressing braces 9 are formed. Both ends of the padding 9 are connected to the frame 10 of the building.

[0005]

1 to 6 show a vibration suppressing bracing member 9 used in an embodiment of the present invention, in which a plurality of first strip-shaped metal plates 1 made of strip-shaped steel plates are arranged in parallel at intervals. A steel spacer 2 extending in the longitudinal direction of the strip-shaped metal plate is disposed at one side portion of each first strip-shaped metal plate 1 in the width direction, and each first strip-shaped metal plate 1 and each spacer 2 are disposed. And are fastened and coupled by a large number of bolts 3 arranged at intervals in the longitudinal direction of the strip-shaped metal plate. A plurality of second strip-shaped metal plates 4 made of strip-shaped steel plates are arranged in parallel at intervals, and a steel plate extending in the longitudinal direction of the strip-shaped metal plates at one side in the width direction of each second strip-shaped metal plate 4. The second strip-shaped metal plates 4 are arranged between the first strip-shaped metal plates 1 adjacent to each other, and the first strip-shaped metal plates 1 and the second strip-shaped metal plates 4 are interposed.
The viscoelastic material layer 6 is interposed between and, and is integrally fixed.

An ethylene tetrafluoride plate 2 is provided between the other widthwise end of the outer first strip-shaped metal plate 1 and one widthwise side of the adjacent second strip-shaped metal plate 4.
The two sliding plates 11 and 12 are arranged in a state where they are superposed on each other, and the two sliding plates 11 and 12 which are superposed on each other are arranged in a large number at intervals in the longitudinal direction of the strip-shaped metal plate. Two sliding plates 18 and 19 made of a tetrafluoroethylene plate are arranged at positions on the outer surface of the metal plate 1 facing the sliding plates 11 and 12, and the sliding plates 11 and 18 are arranged on the first strip-shaped metal plate 1. It is fixed with an adhesive, and 12 is the second
It is fixed to the strip-shaped metal plate 4 with an adhesive.

[0007] A long hole 8 extending in the longitudinal direction of the strip-shaped metal plate is provided at a position of the outer first strip-shaped metal plate 1 that overlaps with the slide plates 11 and 18, and at each of the slide plates 11 and 18.
The tightening bolts 7 are provided in the long holes 8 provided in the outer first strip-shaped metal plate 1 and the sliding plates 11 and 18, and in the second strip-shaped metal plate 4, the spacer 5 and the sliding plates 12 and 19. The first band-shaped metal plate 1 and the second band-shaped metal plate 4 are tightened by the tightening bolt 7 so as not to separate from each other.

On the other side in the width direction of the outer first strip-shaped metal plate 1, a large number of wide elongated holes 20 extending in the strip-shaped metal plate longitudinal direction are provided at intervals in the strip-shaped metal plate longitudinal direction. The second band-shaped metal plate 4 and the spacer 5 are inserted through the wide and long hole 20 into the second bolts 21 for connecting the second metal plate 4 and the spacer 5.
The strip-shaped metal plate 4 and the spacer 5 are fastened together to form an intermediate 2
The first strip-shaped metal plate 1 of one sheet is protruded from one end portion of the two first strip-shaped metal plates 1 of the outer side, the connection portion 23 having the pin hole 22 is provided, and the first strip-shaped metal plate 1 of the outer side. 24 and an end side portion of the inner first strip-shaped metal plate 1, a spacer 24 is interposed and fastened and coupled by a large number of bolts 25. The spacer 24 and the second strip-shaped metal plate 1 A space 26 is provided between the end of No. 4 and the end of No. 4.

Two second strip-shaped metal plates 4 adjacent to the outer first strip-shaped metal plate 1 are projected from the other end of each first strip-shaped metal plate 1 to form a connecting portion 28 having a pin hole 27. A spacer 29 is provided between the end portion of the second band-shaped metal plate 4 at the center and the end-side portions of the second band-shaped metal plate 4 on both sides thereof, and is fastened and coupled by a large number of bolts 30. ing.

As a material for forming the viscoelastic material layer 6, an asphalt viscoelastic material such as rubber asphalt, an acrylic viscoelastic material such as an acrylic polymer or the like can be used.

FIG. 7 shows a vibration suppressing device for a building using the vibration suppressing braces 9 shown in FIGS. 1 to 6, which is a multi-story structure including a steel column 31 and a steel beam 32. A steel central mounting plate 34 having a connecting through hole 33 is fixed by welding to the central upper portion of the steel beam 32 in the skeleton 10, and at the upper corner between the lower end of the steel beam 32 and the steel column 31. , Steel corner mounting plate 3 having through holes 35 for connection
6 are fixed by welding, and one end portion and the other end portion of the vibration suppressing bracing member 9 have a central mounting plate 34 and a corner mounting plate 36.
On the other hand, they are connected by a connecting pin 37 made of a bolt.

[0012]

According to the present invention, a plurality of first strip-shaped metal plates 1 arranged at intervals and in parallel are connected to one side portion in the width direction by a bolt 3 with a spacer 2 interposed therebetween. ,
A plurality of second strip-shaped metal plates 4 arranged in parallel at intervals.
A spacer 5 is interposed on one side in the width direction of each of the second strip-shaped metal plates 4, and the second strip-shaped metal plates 4 are interposed between the adjacent first strip-shaped metal plates 1 with a viscoelastic material layer 6 interposed therebetween. The attachment bolt 7 is inserted through the elongated hole provided on the other side portion in the width direction of the outer first strip-shaped metal plate 1, the second strip-shaped metal plate 4, and the spacer 5 to form the vibration suppressing bracing member 9 Since the both ends of the vibration suppressing bracing member 9 are connected to the frame 10 of the building,
The area of the viscoelastic material layer 6 can be remarkably increased without increasing the cross section of the vibration suppressing bracing member 9 to improve the vibration damping effect of the building, and the cross section of the vibration suppressing bracing member 9 can be increased. Since it is not necessary to increase the number of the vibration suppressing bracing members 9 to be used, it is economical and is not restricted by the floor plan of the building.

[Brief description of drawings]

FIG. 1 is a side view of a vibration suppressing bracing member used in the practice of the present invention.

FIG. 2 is a front view of the vibration suppressing bracing member shown in FIG.

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

FIG. 4 is an enlarged sectional view taken along line BB of FIG. 1;

5 is an enlarged side view showing the upper part of FIG. 1. FIG.

6 is an enlarged side view showing a lower portion of FIG. 1. FIG.

FIG. 7 is a side view showing a building vibration suppressing device using the vibration suppressing bracing members shown in FIGS. 1 to 6;

FIG. 8 is a side view showing a conventional vibration suppressing bracing member.

FIG. 9 is a sectional view taken along the line CC of FIG. 8;

10 is an enlarged cross-sectional view taken along line DD of FIG.

FIG. 11 is a side view of a conventional building vibration suppressing device using a vibration suppressing bracing member.

[Explanation of symbols]

 1 1st strip | belt-shaped metal plate 2 Spacer 3 Bolt 4 2nd strip | belt-shaped metal plate 5 Spacer 6 Viscoelastic material layer 7 Tightening bolt 8 Long hole 9 Vibration suppression bracing material 10 Frame 11 Sliding plate 12 Sliding plate 18 Sliding plate 19 Sliding plate 20 Wide slot 21 Coupling bolt 23 Connecting part 28 Connecting part 34 Central mounting plate 36 Corner mounting plate 37 Connecting pin

Claims (2)

(57) [Claims] 1. A plurality of first strip-shaped metal plates 1 are arranged in parallel at intervals, and a spacer 2 is interposed at one side in the width direction of each first strip-shaped metal plate 1 by a bolt 3. Combined,
A plurality of second strip-shaped metal plates 4 are arranged in parallel at intervals,
A spacer 5 is interposed on one side in the width direction of each of the second strip-shaped metal plates 4, and each of the second strip-shaped metal plates 4 is arranged between adjacent first strip-shaped metal plates 1. The viscoelastic material layer 6 is interposed between the strip-shaped metal plate 1 and the second strip-shaped metal plate 4, and the tightening bolt 7 is provided on the other side portion in the width direction of the outer first strip-shaped metal plate 1. Long hole 8 extending in the longitudinal direction of the strip-shaped metal plate
And a spacer 5 interposed between the second strip-shaped metal plate 4 and one side portion in the width direction, and the spacer 5 interposed between the second strip-shaped metal plates 4 to form a vibration suppressing bracing member 9. A vibration suppressing device for a structure in which both ends of the vibration suppressing bracing member 9 are connected to a frame 10 of the structure. 2. Two slide plates 1 are provided between the other side portion of the outer first strip-shaped metal plate 1 in the width direction and the second strip-shaped metal plate 4.
The building vibration suppressing device according to claim 1, wherein the first and the second members are interposed.