JP6717636B2 - Vibration control device - Google Patents

Description

The present invention relates to a vibration damping device for suppressing the shaking of a structure due to an earthquake or the like, and can be used as a measure against earthquakes or wind pressure of a structure such as a low-rise building or a bridge.

The following Patent Document 1 discloses a vibration damping device for suppressing shaking of a structure due to an earthquake or the like. This vibration damping device includes a vibration damping device disposed inside a quadrangular frame formed by four constituent members constituting a structure, and a radiating member extending radially from the vibration damping device to the quadrangular frame. The vibration damping device is configured to include four braces connected to the frame, and the vibration damping device is formed to include a plastic deformable body, and vibration energy that deforms the rectangular frame is transmitted through the braces. Is transmitted, the vibration energy is absorbed by the plastic deformation of the plastic deformable body, and the vibration is damped and suppressed.

The plastic deformable body of the vibration damping device of Patent Document 1 is a quadrangular frame-shaped body formed by combining four band-shaped members, and the four corner portions of the frame-shaped body are respectively provided with Brace is connected.

JP 2000-27483 A

In order to reduce the manufacturing cost, the vibration damping device arranged at a plurality of required locations in the structure is required to form the plastically deformable body of the vibration damping device with a simple structure using a small number of members.

SUMMARY OF THE INVENTION An object of the present invention is to provide a vibration damping device capable of easily forming a plastically deformable body of a vibration damping device by reducing the number of members and reducing the manufacturing cost.

A vibration damping device according to the present invention includes a vibration damping device disposed inside a rectangular frame formed by four structural members constituting a structure, and a vibration extending radially from the vibration damping device to the rectangular frame. And four braces connected to the lever rectangular frame, and the vibration damper plastically deforms by transmitting vibration energy that deforms the rectangular frame through the braces. In a vibration damping device formed by including a plastic deformation body for absorbing vibration energy, the plastic deformation body is a vibration damping panel made of a metal plate.

In this vibration damping device, the plastic deformation body of the vibration damper that absorbs the vibration energy of the rectangular frame by plastic deformation is a vibration damping panel made of a metal plate. It is possible to reduce the manufacturing cost and reduce the manufacturing cost, thereby reducing the manufacturing cost.

In the present invention described above, in order to connect the four braces extending to the rectangular frame to the vibration damping device, for example, a frame member is attached to the entire circumference of the outer edge portion of the vibration damping panel, and each brace of each brace is attached to this frame member. You may make it join the bracket for connecting an edge part.

Further, when the frame member is attached to the entire circumference of the outer edge portion of the vibration damping panel as described above, the frame member should be formed of a metal plate material in which the thickness direction of the vibration damping panel is the width direction. Is preferred.

According to this, the frame member serves as a member that resists deformation of the damping panel in the thickness direction of the damping panel. In other words, the frame member has a strength in the thickness direction of the damping panel. Since it serves as a reinforcing member for reinforcement, the frame member prevents the vibration damping panel from deforming in the thickness direction of the vibration damping panel when the vibration damping panel is plastically deformed to absorb the vibration energy. The vibration damping panel can be plastically deformed in a predetermined manner to absorb the vibration energy.

Further, in the vibration control panel, the thickness direction of the vibration control panel is the width direction on at least one of the two surfaces in the thickness direction of the vibration control panel, and is orthogonal to the width direction. A rib member made of a metal plate whose direction is the length direction may be attached.

According to this, the rib member also serves as a member for resisting deformation of the damping panel in the thickness direction of the damping panel and reinforcing the strength of the damping panel in the thickness direction. The members also allow the damping panel to be plastically deformed as desired to absorb the vibration energy.

Further, as described above, in the case where the rib member is attached to at least one of the both surfaces in the thickness direction of the vibration damping panel, the above-mentioned direction in the thickness direction of the vibration damping panel In order to deal with the deformation in any form, it is preferable to provide two rib members at a right angle.

Then, in this case, the rib members are attached to both surfaces in the thickness direction of the vibration damping panel, and the first rib member attached to one of these surfaces is attached to the other. It is preferable that the second rib member attached to the surface of the first plate has a right angle.

This is because the first rib member and the second rib member are separately arranged on the two surfaces in the thickness direction of the vibration damping panel, so that these rib members are arranged on the same surface in the thickness direction of the vibration damping panel. It is possible to solve the problem that occurs when the ribs are arranged, that is, the problem that the structure becomes complicated because one rib member is divided and the other rib member passes through. This is because both of the rib members can be arranged inside the frame member in their original lengths.

In the present invention described above, the number of damping panels may be one, or a plurality of damping panels may be arranged in parallel in the thickness direction of the damping panel.

When the number of the vibration damping panels is set to a plurality in parallel with each other in the thickness direction of the vibration damping panels, large vibration energy can be absorbed by the plastic deformation of these vibration damping panels, and the vibration damping device according to the present invention. The vibration damping performance of can be improved.

INDUSTRIAL APPLICABILITY The present invention can be applied to a vibration damping device that is attached to a structure such as a newly-built building during construction work, and can also be applied to a vibration damping device that is retrofitted to a structure such as an existing building.

Furthermore, the vibration damping device according to the present invention can be applied not only to buildings but also to bridges, towers, etc., and can be installed in any structure.

According to the present invention, the plastic deformable body of the vibration damper can be easily formed by reducing the number of members, and the manufacturing cost can be reduced.

FIG. 1 is a front view showing a state where a vibration damping device according to an embodiment of the present invention is installed in a building. FIG. 2 is an enlarged front view showing a portion of the vibration damper and the brace shown in FIG. 1. FIG. 3 is a plan view of FIG. FIG. 4 is a sectional view taken along line S4-S4 of FIG. FIG. 5 is a front perspective view of the vibration damping device. FIG. 6 is a sectional view taken along line S6-S6 of FIG. FIG. 7 is a rear perspective view of the vibration damping device. FIG. 8 is a sectional view taken along line S8-S8 of FIG. FIG. 9 is a view similar to FIG. 1, showing an installation state of the vibration damping device according to another embodiment. FIG. 10 is a front perspective view of a vibration damping device showing an embodiment in which the number of vibration damping panels is two. 11 is a sectional view taken along the line S11-S11 of FIG.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. FIG. 1 shows a state in which a vibration damping device 1 according to an embodiment of the present invention is installed in a low-rise building that is a structure. This building has columns 2 and 3 made of H-shaped steel or the like that are erected at right and left intervals, and beams made of I-type steel or H-shaped steel and the like that are vertically erected between these columns 2 and 3. The gusset plate 6 is coupled to the joint portions of the columns 2 and 3 and the beams 4 and 5 that form the rectangular frame, and the columns 2 and 3 are constructed by constructing the columns 2 and 3. The beams 4 and 5 are constituent members that form a building together with the gusset plate 6.

A vibration damping device 1 is arranged inside a quadrangular frame formed by the columns 2 and 3 and the beams 4 and 5. And four braces 11 that radially extend from the vibration damping device 10 to the rectangular frame, and the ends of the braces 11 on the outer side in the lengthwise direction have a plurality of bolts and nuts. Is coupled to the gusset plate 6 by a coupling tool 12 according to.

2 shows an enlarged view of the vibration damper 10 and the brace 11, FIG. 5 shows a front perspective view of the vibration damper 10, and FIG. 7 shows a rear perspective view of the vibration damper 10. It is shown. 6 is a sectional view taken along line S6-S6 of FIG. 5, and FIG. 8 is a sectional view taken along line S8-S8 of FIG. The main member of the vibration damping device 10 is a vibration damping panel 20, and the vibration damping panel 20 having a quadrangular shape similar to the above rectangular frame is formed of a metal plate material. A frame member 21 is attached to the outer edge portion of the vibration damping panel 20 by welding over the entire circumference of the vibration damping panel 20, and the frame member 21 is a metal whose width direction is the thickness direction of the vibration damping panel 20. It is made of a plate material.

Four brackets 22 are welded to the four corners of the frame member 21, and as shown in FIGS. 1 and 2, the lengths of the four braces 11 are fixed to the brackets 22. The ends on the inner side in the direction are connected by a connecting member 23 formed of a plurality of bolts and nuts.

3 is a plan view of FIG. 2, and FIG. 4 is a sectional view taken along line S4-S4 of FIG. As can be seen from FIGS. 3 and 4, each brace 11 is formed by a pair of brace members 24 sandwiching the bracket 22 from the thickness direction of the vibration damping panel 20, and each brace member 24 is a bracket. The main body portion 24A faces the top surface 22 and extends in the width direction in the vertical direction, and the protrusion portion 24B that protrudes outward in the thickness direction of the vibration damping panel 20 from the upper and lower central portions of the main body portion 24A. Such a pair of brace members 24 can be easily obtained, for example, by cutting an H-shaped steel in half.

Since each brace 11 is formed of a pair of brace constituent members 24 having a protrusion 24B that protrudes outward in the thickness direction of the vibration damping panel 20, when a compressive force that is an axial force acts on the brace 11. The buckling of the brace 11 is prevented by the reinforcing action of the protrusions 24B.

In the present embodiment, the mounting position of the vibration damping panel 20 in the width direction of the frame member 21 is the center position in the width direction of the frame member 21, and this position is the same as the mounting position of the bracket 22 in the frame member 21. I am doing it. Further, connecting the outer ends in the longitudinal direction of each brace 11 to the gusset plate 6 shown in FIG. 1 by the connecting tool 12 means that the gusset plate 6 is connected to the thickness of the damping panel 20 by the pair of brace members 24. The gusset plate 6, the bracket 22, and the damping panel 20 of the damping device 10 are arranged in the same vertical plane because they are sandwiched from the vertical direction.

As shown in FIG. 5, the first rib member 25 made of a metal plate material is attached to the surface of the vibration damping panel 20 by welding, and as shown in FIG. A second rib member 26 made of a metal plate is attached to the back surface of 20 by welding. Therefore, the first rib member 25 and the second rib member 26 are provided on both surfaces in the thickness direction of the vibration damping panel 20, and the first rib member 25 and the second rib member 26 are provided at the center position of the vibration damping panel 20 in the left-right direction. The 1-rib member 25 has the thickness direction of the vibration damping panel 20 as the width direction and the up-down direction as the length direction, and both end portions of the first rib member 25 reaching the frame member 21 in the length direction. Are welded to the frame member 21. Further, the second rib member 26 arranged at the central position in the vertical direction of the vibration damping panel 20 has the thickness direction of the vibration damping panel 20 as the width direction and the left-right direction as the length direction. Both lengthwise end portions of the second rib member 26 reaching the member 21 are joined to the frame member 21 by welding.

Therefore, both the first rib member 25 and the second rib member 26 have a length direction orthogonal to the width direction, and the first rib member 25 and the second rib member 26 have a length direction orthogonal to the width direction. 26 are arranged on both front and back surfaces of the vibration damping panel 20 at a right angle.

After the vibration control device 1 is installed in a building as shown in FIG. 1, when a lateral load F in the left-right direction acts on the building due to an earthquake or wind pressure, a quadrangle composed of columns 2, 3 and beams 4, 5 The frame is deformed, and the deformation is caused by the pulling force acting on the two braces 11 arranged in one diagonal direction out of the four braces 11 arranged in two diagonal directions and the other diagonal line. By the compressive force acting on the two braces 11 arranged in the direction, the tensile force and the compressive force transmitted to the damping panel 20 of the damping device 10 and alternately acting according to the change in the direction of the lateral load F. When the vibration damping panel 20 is plastically deformed by the force, the vibration energy that deforms the quadrangular frame by the lateral load F is absorbed by the plastic deformation of the vibration damping panel 20, and the vibration of the building is damped and suppressed.

As described above, in the vibration damping device 1 according to the present embodiment, the vibration energy that deforms the rectangular frame is transmitted through the brace 11 and plastically deforms, so that the plastic deformation body that absorbs this vibration energy is Since the vibration damping panel 20 is made of a metal plate material, the plastically deformable body can be easily formed by reducing the number of members, and the manufacturing cost can be reduced.

Further, since the width direction of the frame member 21 made of a metal plate attached to the entire circumference of the outer edge portion of the vibration damping panel 20 is the thickness direction of the vibration damping panel 20, the frame member 21 is The vibration panel 20 is a member for reinforcing the strength of the vibration damping panel 20 in the thickness direction. Therefore, when the vibration energy that deforms the rectangular frame by the lateral load F is transmitted to the vibration damping panel 20 via the brace 11, the vibration damping panel 20 deforms in the thickness direction of the vibration damping panel 20. The frame member 21 resists, and the reinforcing action of the frame member 21 prevents the vibration damping panel 20 from being deformed in the thickness direction of the vibration damping panel 20, so that the vibration damping panel 20 absorbs vibration energy. It can be plastically deformed as specified.

Further, a first rib member 25 and a second rib member 26, which are made of a metal plate and whose width direction is the thickness direction of the vibration damping panel 20, are attached to both surfaces of the vibration damping panel 20 in the thickness direction. Therefore, these rib members 25 and 26 are also members for reinforcing the strength of the vibration damping panel 20 in the thickness direction of the vibration damping panel 20, and therefore, the rectangular frame is deformed by the lateral load F. When the vibration energy is transmitted to the vibration damping panel 20 through the brace 11, the vibration damping panel 20 may be deformed in the thickness direction of the vibration damping panel 20 due to the reinforcing action of the rib members 25 and 26. It can be prevented and the damping panel 20 can be plastically deformed in a predetermined manner in order to absorb the vibration energy.

Furthermore, since the first rib member 25 and the second rib member 26 are arranged at a right angle to the vibration damping panel 20, the above deformation in the thickness direction of the vibration damping panel 20 may be, for example, vertical. Whether they occur in the horizontal direction, in the horizontal direction, or in the diagonal direction with respect to both the horizontal direction and the vertical direction. You can deal effectively.

Further, in the present embodiment, the first rib member 25 and the second rib member 26 are arranged separately on the two surfaces in the thickness direction of the vibration damping panel 20, so that these rib members 25, 26 are It can be attached to both surfaces in the thickness direction of the vibration damping panel 20 with the original length, and thus the structure for attaching the two rib members 25 and 26 to the vibration damping panel 20 can be simplified.

That is, when two rib members are attached to the same surface in the thickness direction of the vibration damping panel at a right angle, these rib members cross each other, so that one rib member passes the other rib member. Therefore, the rib member mounting structure becomes complicated due to the necessity of division, and the present embodiment can solve such a problem.

Further, as described above, in the vibration damping device 1 of the present embodiment, the gusset plate 6, the bracket 22, and the vibration damping panel 20 of the vibration damping device 10 are disposed in the same vertical plane, and The vibration energy that deforms the quadrangular frame by the load F can be transmitted to the vibration damping panel 20 with or without a deviation in the thickness direction of the vibration damping panel 20. The above deformation in the thickness direction of the panel 20 can be eliminated or suppressed.

The building of the embodiment of FIG. 9 is constructed by columns 52 and 53 which are erected at right and left intervals and beams 54 and 55 which are vertically provided between these columns 52 and 53. In addition, a stud 56 is erected between the pillars 52 and 53. Therefore, the pillar 52, the stud 56, and the beams 54 and 55 form one quadrangular frame, and the pillar 53, the stud 56, and the beams 54 and 55 form another quadrangular frame, and each quadrangular frame. The vibration damping device 1 inside is disposed.

Therefore, in this embodiment, the stud 56 is also a constituent member for forming a rectangular frame in which the vibration damping device 1 is arranged, like the pillars 52 and 53 and the beams 54 and 55.

FIG. 10 and FIG. 11, which is a sectional view taken along the line S11-S11 of FIG. 10, show a vibration damping device 60 according to another embodiment of the vibration damping device. Also in this embodiment, a frame member 21 made of a metal plate material is attached by welding to the entire periphery of the outer edge portion of the vibration damping panel 20 made of a metal plate material, and four braces are attached to the frame member 21. Four brackets 22 to which the inner ends of 11 are joined are attached by welding.

In this embodiment, as can be seen from FIG. 11, two damping panels 20 are arranged side by side in the thickness direction of the damping panel 20 at intervals. A first rib member 65 made of a metal plate having a thickness direction of the vibration damping panel 20 as a width direction and a vertical direction as a length direction is attached to the outward surface of the vibration damping panel 20 by welding, Further, on the inwardly facing surfaces of the two damping panels 20 facing each other, a second rib member 66 made of a metal plate having a width direction in the thickness direction of the damping panel 20 and a length direction in the left-right direction. Are attached by welding, and both ends of the rib members 65, 66 in the length direction reach the frame member 21 and are joined to the frame member 21 by welding. In addition, in this embodiment, the second rib member 66 is a common rib member for the two vibration damping panels 20.

It should be noted that, of the first rib member 65 and the second rib member 66, at least the second rib member 66 is attached to the two vibration damping panels 20 by welding in the entire circumference of the outer edge portions of these vibration damping panels 20. This is performed before the work of attaching the frame member 21 by welding.

According to this embodiment, since the number of the vibration damping panels 20 is two, when the lateral load due to an earthquake or wind pressure acts on the building, the vibration energy transmitted through the braces 11 causes the two vibration damping panels 20 to be suppressed. Since the vibration panel 20 is plastically deformed and thereby the vibration energy is absorbed, even large vibration energy is absorbed and the vibration of the building can be effectively damped and suppressed.

Further, since the first rib member 65 and the second rib member 66 are attached to both surfaces of the respective vibration damping panels 20 at a right angle, the same operation as the embodiment of FIGS. In addition to the effect being obtained, the second rib member 66 is a common rib member for the two damping panels 20, so that even if the number of the damping panels 20 in the damping tool 60 is two, The structure of the vibration damper 60 can be simplified.

Furthermore, since the arrangement position of the bracket 22 attached to the frame member 21 for connecting the brace 11 is the center position between the two damping panels 22, the square frame is deformed by the lateral load. The vibration energy can be evenly distributed to the damping panels 22 via the brackets 22, and the damping panels 22 can be plastically deformed.

INDUSTRIAL APPLICABILITY The present invention can be used, for example, to suppress shaking generated in a structure such as a low-rise building due to an earthquake or wind pressure.

1 Damping device 2, 3, 52, 53 Pillars 4, 5, 54, 55 which are constituent members of a building which is a structure Beams which are constituent members of a building which is a structure 56 Structural members of a building which is a structure Studs 10, 60 Damper 11 Brace 20 Damping panel that is a plastic deformation body 21 Frame member 22 Bracket 25,65 First rib member 26,66 Second rib member

Claims (6)

A damping device disposed inside a rectangular frame formed by four constituent members constituting the structure, and a vibration extending radially from the damping device to the rectangular frame and connected to the rectangular frame. A brace of a book, and the damping device is plastically deformed to absorb the vibrational energy by transmitting vibrational energy that deforms the rectangular frame through the brace. In the vibration damping device formed including the body,
The plastic deformation body is a vibration control panel made of a metal plate ,
A frame member is attached to the entire circumference of the outer edge portion of the vibration damping panel, and a bracket for connecting the end portion of the brace is coupled to the frame member,
The two damping panels are arranged side by side in the thickness direction of the damping panel, and the outer surface of each of the damping panels has a width direction in the thickness direction of the damping panel. A first rib member made of a metal plate having a lengthwise direction orthogonal to the width direction is attached, and the inwardly facing surfaces of the two vibration damping panels face each other. The second rib member made of a metal plate, in which the thickness direction of the vibration damping panel is the width direction, and the direction perpendicular to the length direction of the first rib member is the length direction, the second rib member made of a metal plate A vibration damping device, wherein the vibration damping device is attached as a common rib member for the vibration panel . The vibration damping device according to claim 1, wherein the attachment of the first rib member to the outward surface and the attachment of the second rib member to the inward surface are performed by welding. Damping device. The vibration damping device according to claim 1 or 2, wherein the bracket is coupled to the frame member at a central position between the two vibration damping panels. The vibration damping device according to any one of claims 1 to 3, wherein both longitudinal end portions of the first rib member and longitudinal end portions of the second rib member reach the frame member. A vibration damping device characterized by being coupled to this frame member. 5. The vibration damping device according to claim 4, wherein the lengthwise ends of the first rib member and the lengthwise ends of the second rib member are joined to the frame member by welding. Vibration control device characterized by being. The vibration damping device according to any one of claims 1 to 5 , wherein the frame member is formed of a metal plate member whose width direction is the thickness direction of the vibration damping panel. Vibration control device.

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