JPH1181735A - Vibration control unit and vibration control damper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a vibration control unit that can simply provide a vibration control structure for a building without requiring much space for installation. SOLUTION: A frame body 60 composed of rails 62 and stiles 64 is made installable to the inside of a wall of a building 12. Thereby, installation becomes simple without requiring much space for the installation. A toggle mechanism is composed of the first brace 68 and the second brace 72 at the inside of the frame body 60, and even though the upper rail 62 and the lower rail 62 are deformed relatively in the horizontal direction to a small extent, a connecting member 74 moves largely in a circular arc motion, amplifying the deformation largely. The amplified displacement is attenuated with a damper 34, and vibration of the building 12 is controlled with a small force through the frame body 60. Thereby, the response acceleration and the response displacement can be decreased for the building 12 and because of this, furniture or the like housed in the building 12 can be prevented from falling.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a relatively small building and a vibration damping unit and a vibration damper for floor shaking as floor seismic isolation.

[0002]

2. Description of the Related Art A relatively light building such as a detached house,
In addition, in a building with a long natural period (a building that easily shakes and involves a large amount of deformation), a seismic isolation structure for a heavy object such as a high-rise building cannot be used as it is as an earthquake countermeasure. In addition, the TMD vibration control structure where the vibration control device is installed on the top floor, as used in high-rise buildings, is not suitable.

Therefore, in the case of an ordinary detached house, collapse by an earthquake is prevented by increasing the number of braces or the like to make the structural strength and rigidity of the building larger than the inertial force of the building.

However, according to this method, the response acceleration and the response displacement of the building cannot be reduced, and furniture or the like accommodated in the building cannot be prevented from overturning.

On the other hand, the building is supported by a sliding bearing such as an iron ball,
There is also a seismic isolation structure for lightweight houses that combines a damper to attenuate vibrations, but it is necessary to secure additional space for building a seismic isolation structure. Further, since the damping direction of a general damper is one direction, when a plurality of dampers are combined in a three-dimensional direction, the structure becomes complicated and a large installation space is required. Further, construction costs also increase.

[0006]

SUMMARY OF THE INVENTION In consideration of the above facts, the present invention makes it possible to construct a building with a vibration-damping structure without any installation space, and to attenuate three-dimensional vibration with a single damper. The task is to make

[0007]

According to the first aspect of the present invention, a frame composed of a horizontal frame and a vertical frame can be mounted in a wall of a building. That is, since it is only necessary to attach the wall material between the columns, the construction is simple and the installation space is not taken up. The installation location is determined based on the relationship between the building weight and the floor plan.

[0008] One end of a first brace is rotatably mounted on the upper horizontal frame, and one end of a second brace is rotatably mounted on the lower horizontal frame. Then, the free ends of the first brace and the second brace are rotatably connected at a predetermined angle by the connecting member, thereby forming a toggle mechanism.

By configuring the toggle mechanism in this way, even if the upper horizontal frame and the lower horizontal frame relatively deform in the horizontal direction following the deformation of the building frame, the connecting member largely moves in an arc. And amplify it into large deformations. Therefore, a relationship of small deformation × large force = large deformation × small force is established.

[0010] The circular motion of the connecting member is attenuated by the energy absorbing means provided on the horizontal frame, and the vibration of the building is suppressed with a small force via the frame. Thereby, the response acceleration and the response displacement of the building are reduced, so that the furniture and the like stored in the building can be prevented from falling.

In the unitization, the frame and the brace are made of wood, so that the cost can be reduced. Furthermore, by fitting the frame into the building, the number of columns as structural materials can be reduced accordingly.

According to the second aspect of the present invention, a wire such as a wire or a piano wire is used as a member constituting the toggle mechanism, and the weight of the vibration damping unit is reduced.

The free end of the first wire connected to the upper horizontal frame and the second end connected to the lower horizontal frame.
The free ends of the wires are connected by a connecting member at a predetermined angle to form a toggle mechanism.

[0014] The connecting member is connected to the other end of the oblique wire whose one end is connected to the horizontal frame, and energy absorbing means at a position facing the oblique wire is connected to the connecting member. Here, the oblique line material is in a stretched state in a state where energy is not input to the building, and expands and relaxes when the frame body is deformed.

For example, when the upper horizontal frame is displaced rightward, the first wire and the second wire are located on the same line and extend. For this reason, the apparent rigidity of the frame body is increased. In addition, the amount of displacement of the connecting member is amplified by the toggle mechanism formed by the first wire and the second wire than the amount of displacement of the horizontal frame, and the energy absorbing means is greatly extended to attenuate the movement of the connecting member. At this time, the oblique line material is slackened and does not contribute to vibration control.

On the other hand, when the upper horizontal frame is displaced to the left, the angle between the first wire and the second wire becomes acute, and the first wire and the second wire are slackened. On the other hand, the diagonal wire is stretched,
The energy absorbing means is extended, and the toggle mechanism does not function, but dampens the movement of the connecting member.

According to the third aspect of the present invention, the first wire, the second wire, and the oblique wire are provided with tension means for introducing an initial tension. Thus, the toggle mechanism can be easily constructed by providing the tension means and adjusting the tension of each wire. Moreover, the slack of the wire rod due to creep deformation can be removed.

According to the fourth aspect of the present invention, the adjustment horizontal frame is disposed above the horizontal frame disposed above, and the adjustment horizontal frame and the horizontal frame are connected to each other by an expandable and contractible means.

Thus, if the adjustment horizontal frame is moved up and down according to the height of the beam of the building to be damped, it is not necessary to change the size of the frame for each building. For this reason, by constructing the toggle mechanism in a fixed frame composed of a horizontal frame and a vertical frame and mass-producing it, the manufacturing cost of the unit can be reduced.

According to the fifth aspect of the present invention, the upper portion of the first ring is provided at a predetermined interval to the left and the upper portion of the second ring is provided at a predetermined interval to the right. Are connected by an upper connecting member, and a lower portion of the first ring and a lower portion of the second ring are connected by a lower connecting member.

As described above, by inclining the plurality of rings and connecting the upper and lower parts thereof with the connecting members, the connecting members can move relative to each other left and right, up and down, and forward and backward. Even so, the ring is elastically deformed in the three-dimensional direction, and the vibration of the structure to which the connecting member is connected is attenuated by the restoring force. It also plays a role in isolating (blocking) vibrations generated at the upper and lower parts.

According to the sixth aspect of the present invention, the upper and lower portions of the first coil which draws a spiral and tilts to the left and the second coil which draws a spiral and tilts to the right are connected by an upper connecting member and a lower connecting member, respectively. ing.

As described above, a large damping force can be exerted by using a continuous spiral coil instead of a ring.

According to the seventh aspect of the present invention, the above-described ring and coil are formed of twisted wires. For this reason, compared with a single line, since the bent portions rub against each other to generate a frictional force, the damping effect is also increased.

The materials of the ring and the coil are as follows:
Steel materials having excellent elastic properties (PC steel, iron, stainless steel, etc.) are preferred.

According to the eighth aspect of the present invention, both ends of a plurality of curved bars are connected to connecting members arranged vertically, so that the outer shape of the bars is substantially spherical. As described above, by making the damper spherical, the vibration input from the three-dimensional direction can be prolonged by the bending elasticity of the bar, and the input energy can be reduced.

Further, by intersecting the rods, they rub against each other to generate a frictional force, so that the input energy can be reduced not only by the elastic force but also by the frictional force.

According to the ninth aspect of the present invention, a bent portion is formed in the leaf spring, and the bent portion can be extended in the longitudinal direction of the leaf spring. This allows the leaf spring to be deformed in two directions, that is, deformation in the bending direction and deformation in the axial direction.

According to the tenth aspect of the present invention, the leaf spring has
The two bent portions are formed, and the bending directions of the bent portions are different by 90 degrees. That is, by adding another bending deformation direction, it can be used as a damper capable of coping with three-dimensional vibration.

[0030] According to an eleventh aspect of the present invention, the first connecting member for fixing a substantially intermediate portion of a wire having a predetermined length,
A second connecting member fixed to an end of the wire, which is disposed to face the connecting member, is bent in a circular shape in a side view, and is twisted to draw a truss shape in a front view. .

As a result, the wire supports the vertical load as a truss, and exerts a damping force against a load from the horizontal direction due to the twisting of the wire. Also, since the wire can be freely processed, the workability is good.

According to a twelfth aspect of the invention, there is provided a leaf spring having a bent and ring shape, an upper connecting member for fixing one end of the leaf spring in the plate width direction or one of the plate surfaces to the upper structure, And a lower connecting member for fixing the other end of the leaf spring in the plate width direction or the other of the plate surfaces to the lower structure.

Thus, the leaf spring supports the upper structure, and the vibration acting in the horizontal direction is attenuated by the deformation rigidity when the ring-shaped circle is deformed into an elliptical shape.

[0034]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 to 4, a vibration damping unit 10 according to a first embodiment has a thickness and a width which can be accommodated in a Western-style wall or a Japanese-style wall of a detached building 12. A frame 14 is provided.

The frame body 14 is composed of a vertical frame 16 and a horizontal frame 18, and pin bearings 20, 22 are provided at both ends of the lower horizontal frame 18. Also,
Pin bearings 24, 2 are also provided at both ends of the upper horizontal frame 18.
6 are provided.

A first wire 28 is connected to the pin bearing 26. The free end of the first wire 28 is connected to the free end of the second wire 30 connected to the pin bearing 22 and the connecting member 3.
They are connected by two.

On the other hand, the shaft 36 extending from the cylinder portion of the damper 34 is rotatably connected to the pin support 20, and the rod 34 A is connected to the connecting member 32. By pulling the connecting member 32 by the damper 34, the first wire 28 and the second wire 30 are kept stationary at a predetermined intersection angle.

An oblique wire 38 is connected to the pin bearing 24 so as to face the damper 34, and a free end is connected to the connecting member 32. This oblique wire 38 is in an extended state when energy is not input to the building 12.

Further, the first wire 28 and the second wire 3
The 0 and oblique wires 38 are provided with a turnbuckle 41 and the like, and by adjusting the initial tension of each wire, the first wire 28 and the second wire 30 are adjusted.
With this, the toggle mechanism can be configured. In addition, a decrease in tension due to creep deformation can be eliminated.

The adjustment horizontal frame 40 is disposed above the horizontal frame 18. A rotation bearing 44 is provided on the adjustment horizontal frame 40. This rotating bearing 44
, A first arm 46 extending downward is rotatably connected to the first arm 46. The first arm 46 is rotatably connected to a second arm 48 rotatably connected to the rotary bearing 42 of the horizontal frame 18 in an X-shape with a pin 50, and forms a kind of pantograph as a telescopic means. . The free ends of the first arm 46 and the second arm 48 are provided with rollers 5.
2 are provided so as to roll on the horizontal frame 18 or the adjustment horizontal frame 40.

Therefore, the beam 12 of the building 12 to be damped is
A, the adjustment horizontal frame 40 is moved up and down along the vertical frame 16 in accordance with the height of
When the roller 52 is fixed to the horizontal frame 18 and the adjustment horizontal frame 40, the mounting operation is completed.

By adopting such a configuration, it is possible to mass-produce a standardized frame body 14 in which the amplification factor of the toggle mechanism can be arbitrarily adjusted, thereby reducing the manufacturing cost. After being fixed, the first arm 46 and the second arm 48 function as braces, and increase the rigidity of the horizontal frame 18 and the adjustment horizontal frame 40.

Next, the operation of the vibration damping unit 10 according to this embodiment will be described. As shown in FIG.
Is installed in the outer wall 54 and the partition wall 56 of the building 12 (between the upper beam and the lower beam). That is, since it can be used as a wall material, construction is simple and no installation space is required. The installation location is determined by the relationship between the weight of the building 12 and the layout.

Assume that the building 12 is horizontally deformed rightward from the state shown in FIG. 5 due to an earthquake or the like, as shown in FIG. 6, and the upper horizontal frame 18 is also displaced rightward. At this time, the first wire 28 and the second wire 30 extend on the same line. For this reason, the rigidity of the frame 14 is apparently improved. Further, the toggle mechanism constituted by the first wire 28 and the second wire 30 allows the displacement amount of the horizontal frame 18 to be
The displacement of the connecting member 32 is amplified, and the rod 34A of the damper 34 is greatly extended, thereby damping the vibration of the frame 14. At this time, the slant wire 38 is slackened and does not contribute to vibration control.

As shown in FIG. 7, when the upper horizontal frame 18 is displaced leftward, the angle drawn by the first wire 28 and the second wire 30 becomes acute, and the first wire 28 and the second wire 30 Relax. On the other hand, the oblique wire 38 is extended,
The rod 34A of the damper 34 is extended, and the toggle mechanism does not function, but the movement of the connecting member 32 is attenuated.

As described above, the vibration damping unit 10 of this embodiment
Follows the deformation of the building 12, amplifies the amount of the deformation, efficiently absorbs the input energy, and suppresses the shaking of the building 12. Therefore, response acceleration and response displacement of the building 12 are reduced, and furniture and the like stored in the building can be prevented from overturning.

In the drawings, a single-family house having a base unit of 3.6 modules is described as an example. However, the present invention can be used not only for a wooden building but also for a lightweight steel-framed house. In addition, by increasing the size of the unit, it can be installed in an office building or the like.

Further, in the case of an existing house, only the wall needs to be repaired, so that seismic reinforcement can be realized at low cost.

Next, a vibration damping unit according to a second embodiment will be described. As shown in FIG. 8, unlike the first embodiment, in the second embodiment, the toggle mechanism is configured by a rod-shaped brace.

That is, the vibration damping unit 58 of the second embodiment
Is provided with a frame body 60 having a thickness and a width that can be accommodated in a wall. The frame body 60 includes a vertical frame 62 and a horizontal frame 64. A pin bearing 66 is provided on the upper horizontal frame 64, and one end of a first brace 68 is rotatably mounted on the pin bearing 66.

A pin support 70 is provided on the lower horizontal frame 64, and one end of the second brace 72 is rotatably mounted on the pin support 70. And
The free end of the first brace 68 and the free end of the second brace 72 are rotatably connected by a connecting member 74 at a predetermined angle to form a toggle mechanism.

Further, a pin bearing 76 is provided on the lower horizontal frame 64. The shaft 36 extending from the cylinder portion of the damper 34 is rotatably connected to the pin bearing 76, and a rod 34A is provided. Is rotatably connected to the connecting member 74.

Next, the operation of the vibration damping unit according to the second embodiment will be described. As shown in FIG. 9, for example, when the upper horizontal frame 64 is horizontally displaced to the right following the deformation of the building 12, the second brace 72 constituting the toggle mechanism performs an arc movement around the pin bearing 70. Therefore, the displacement amount of the connecting member 74 is amplified to be larger than the horizontal displacement amount of the horizontal frame 64.

As described above, the small displacement of the horizontal frame 64 is amplified to the large rotational displacement of the connecting member 74, and the relationship of small displacement × large force = large displacement × small force is established.

The circular motion of the connecting member 74 is attenuated by the damper 34 provided on the horizontal frame 64.
The vibration of the building 12 is damped with a small force via the frame body 60. Thereby, the response acceleration and the response displacement of the building 12 are reduced.

In this embodiment, even if the building 12 is deformed leftward, the first brace 68 and the second brace 72
Angle of intersection becomes small, the toggle mechanism functions, and the damper 3
The fourth rod 34A is contracted to exhibit a vibration damping function.

Next, a vibration damper according to a third embodiment will be described. As shown in FIGS. 10 and 11, the vibration damper 78 according to the third embodiment has thick and long plate-like connection fittings 80 and 8.
2 are provided above and below. Through holes 84 are formed on the side surfaces of the connection fittings 80 and 82 at predetermined intervals.

The spiral first coil 86A (iron, steel, stranded wire, wire rope, P
(Made of C steel, alloy, etc.) is inserted, the back side stands upright, and the front side is inclined to the left. Both ends of the first coil 86A are caulked or fixed by welding or the like so as not to come out of the through hole 84.

On the other hand, from the right side, the spiral second coil 86B
Is inserted, the back is upright, and the near side is inclined to the right. Both ends of the second coil 86B are
It is caulked so as not to get out of the through hole 84, or is fixed by welding or the like.

When the vibration damper 34 is viewed from the axial direction of the coil 86, both ends of the ellipse drawn by the coil 86 in the short axis direction are connected by the connecting fittings 80 and 82.
Further, connection bolts 88 connected to the structure are provided on the outer surfaces of the connection fittings 80 and 82 at predetermined intervals.

Next, the operation of the vibration damper according to this embodiment will be described. As shown in FIG. 14, a floor beam 92 and a foundation beam 90 are provided.
And the connecting bracket 82 is connected to the floor beam 92 by the connecting bolt 88 and the connecting bracket 80 is connected to the foundation beam 90.
And the building 12 is supported by the vibration damper 78. And when no energy is input to the building 12,
The upper load acts toward the center of the ellipse drawn by the coil 86.

Here, when the building 12 swings up and down, the coil 86 is elastically deformed and crushed, and exerts a damping force. Also,
When the building 12 swings back and forth, as shown in FIG. 12, the coil 86 moves in the axial direction, for example, the first coil 86A rises, the second coil 86B falls, and exerts a damping force. Further, when the building 12 swings from side to side, as shown in FIG. 13, the ellipse drawn by the coil 86 collapses, and the restoring force causes torsional deformation at that time, so that friction between the lines exerts a damping force.

With this configuration, the coil 86 is
The vibration of the building 12 is attenuated by the elastic deformation in the dimensional direction and the restoring force.

Next, a vibration damper according to a fourth embodiment will be described. As shown in FIGS. 15 to 18, in the fourth embodiment, a plurality of rings 94 are arranged at predetermined intervals in place of the coils, and the inclination direction is reversed left and right around the center.

The connecting fitting 96 is composed of an inner fitting 96B and an outer fitting 96A, and the flat portion 94A of the ring 94 is held between two mating surfaces. Further, an insertion hole 10 through which the bolt 100 can be inserted is provided between the grooves 98.
2, a nut 104 and a bolt 100 are screwed together, and a ring 9 is inserted between the inner fitting 96B and the outer fitting 96A.
4 to be fixed.

As described above, the ring 94 can also constitute the vibration damper 34 that elastically deforms three-dimensionally. When the ring 94 and the coil 86 are formed of a twisted wire, since the bent portions rub against each other to generate a frictional force as compared with a single wire, the damping effect is increased. Further, the magnitude of the damping force can be adjusted by the thickness of the wire, the outer diameter of the ring and the coil, the material, and the like. further,
The vibration damper may be configured by tilting the ring in one direction.

Next, a vibration damper according to a fifth embodiment will be described. As shown in FIG. 19, the vibration damper 106 is configured by inserting and fixing both ends of a plurality of semicircular curved wires 108 to the side surfaces of a cylindrical block 110 arranged vertically. , And the outer shape is substantially spherical. That is, by arranging the wires 108 so as to be symmetrical with respect to the axis connecting the cores of the blocks 110, the spherical shape can be maintained even when the restoring forces are exerted on each other.

The wires 108 intersect each other at an intermediate portion, so that when a force is applied to the block 110, the wires 108 are deformed and rub against each other. In addition, the effect as a damper can be sufficiently exhibited without crossing wires.

Next, the operation of the vibration damper 106 according to this embodiment will be described. As shown in FIG. 20, a vibration damper 106 is disposed between the floor beam 92 and the foundation beam 90, the block 110 is fixed to the floor beam 92 and the foundation beam 90, and the building 12 is supported by the vibration damper 106. . When no energy is input to the building 12, the upper load is acting on the axis of the block 110.

Here, as shown in FIG. 21, the building 12 swings up and down, left and right, and back and forth, and the vibration input from the three-dimensional direction is made longer by the bending elasticity of the wire 108 to reduce the input energy. Can be done.

Further, by intersecting the wires 108, the wires 108 rub against each other to generate a frictional force, so that the input energy can be reduced not only by the elastic force but also by the frictional force. Furthermore, since the longitudinal cross-section is circular, analysis can be relatively easily performed.

Next, a vibration damper according to a sixth embodiment will be described. As shown in FIG. 22, the vibration damper 1 of the sixth embodiment
12, an S-shaped bent portion 114A is formed at the center of the rectangular leaf spring 114, and the bent portion 114A is expanded and contracted in the Y-axis direction.

That is, in the leaf spring 114, the bending moment is specified in one direction around the X axis since the second moment of area about the Y axis is significantly larger than the second moment of area about the X axis. By forming 114A, axial deformation in the Y-axis direction becomes possible.

As the material of the leaf spring 114, a steel material (iron, extremely low yield point steel, hardened steel, ultra-high strength steel, etc.) can be used. Further, it is usually used as a spring for restoring force, but it can also be used as an elastic-plastic damper.

Next, the operation of the vibration damper 122 according to this embodiment will be described. As shown in FIGS. 23 and 24, the damping dampers 112 are fixed to four sides of the foundation 116 of the building 12, and the building 12 is supported via the damping dampers 112.

At this time, the bolts 120 are inserted into the mounting holes 118 formed at both ends of the leaf spring 114 to fix the vibration damper 112 to the base 116. However, the building 12 swings right and left. At this time, as shown in FIG. 25, the near-side damping damper 112 is centered on the lower bolt 120 so that the near-side damping damper 112 does not hinder the bending deformation of the left and right damping dampers 112. Rocking, building 12
Follow the movement of the.

Further, when the building 12 swings back and forth, the left and right vibration dampers 112 are pivoted about the lower bolt 120 so as not to hinder the bending deformation of the vibration dampers 112 arranged front and rear. The vibration damper 112 swings and follows the movement of the building 12.

As described above, by combining the vibration damper 112, the vibration in two horizontal directions can be attenuated while supporting the axial load.

Further, as shown in FIG. 26, the vibration damper 112 is turned sideways (the X axis is oriented vertically so as to increase the bending rigidity in the vertical direction), and the four sides of the double floor member 122 are moved. By supporting it, it is possible to construct a seismic isolation floor structure that attenuates vibrations in two horizontal directions. In the gap between the double flooring material 122 and the wall 124, a carpet or the like can be laid with the vibration damper 112 as a base material.

In this embodiment, the bent portion has an S-shape. However, if it can be expanded and contracted, the bent portion may have a V-shape like a vibration damper 126 shown in FIG. It may be Z-shaped like the vibration damper 128 or semi-circular like the vibration damper 130 shown in FIG.

Next, a vibration damper according to a seventh embodiment will be described. As shown in FIG. 30, the vibration damper 132 of the seventh embodiment combines two leaf springs 114 described in the sixth embodiment, and has a shape in which the Y axis is coaxial and the X axis is orthogonal. ing.

With this configuration, a damper capable of coping with three-dimensional vibration, which expands and contracts in the Y-axis direction at the two bent portions 114A and bends in two horizontal directions.

Next, the operation of the vibration damper 132 according to this embodiment will be described. As shown in FIG. 31, the vibration damper 122 is fixed to two sides of the foundation 116 of the building 12, and the building 12 is supported via the vibration damper 132.

Here, unlike the vibration damper 112 of the sixth embodiment, the vibration damper 132 itself is bent and deformed in two horizontal directions (front, rear, left and right of the building), so that the number of used points can be reduced.

As shown in FIG. 32, a double floor member 134 used in a high-rise building or the like may be suspended from an upper structural floor 136 by a vibration damper 132. As described above, by using the vibration damper 132 as a hanging material, the set position of the double floor material 134 can be held, and the hanging material itself adds a seismic isolation function to the double floor material 134.

[0086] Between the double flooring 134 and the structural floor 136, a vibration damper 138 filed by the inventor of the present invention (Japanese Patent Application No. Hei 9-1997).
89800) and double flooring 13
4 is further suppressed.

FIG. 8 shows a vibration damping unit composed of braces. As shown in FIG. 33, a wooden mechanism 202 and 204 constitute a toggle mechanism inside a normal pillar 200. Is also good.

That is, holes are formed in the ends of the square members 202 and 204, and are rotatably attached to the metal plate 206 which also serves as reinforcement of the column 200. The free ends of the square members 202 and 204 are connected by a pin 208. An auxiliary mass 210 such as an iron plate is attached to the pin 208 to reduce input energy. Further, a hydraulic damper 212 is attached to the free ends of the square members 202 and 204 to absorb vibration energy.

As described above, by using a wooden toggle mechanism, manufacturing costs can be reduced. In addition, no special material is required, and it can be easily assembled with nails, wood screws, or the like. In addition, when retrofitting existing buildings,
For example, by simply removing the middle shelf in the closet, assembling the vibration suppression unit, and returning the middle shelf to the original state, the construction is easily completed.

Next, the vibration damper 214 according to the eighth embodiment
Will be described. As shown in FIGS. 34 to 36, the vibration damper 214 according to the eighth embodiment includes a base plate 216 fixed to a floor beam and a foundation beam. On the base plate 216, bosses 218 each having a female thread cut on the inner peripheral surface are provided so as to protrude in a direction facing each other.

The boss portion 218 has a holding plate 220,
22 are superimposed and fastened to the base plate 216 by bolts 226. The wires 224 are fixed between the base plate 216 and the holding plates 220 and 222, respectively, and form a truss shape (triangular shape) in a side view as shown in FIG.

Here, the method of attaching the wire 224 will be described. First, the wire 224 is cut into an appropriate length (this length is determined according to the size and inclination of the constituting circle).
Is determined), the center of which is the base plate 216 and the holding plate 2
20 and fix. With the fixing portion as a boundary, the end portion is fixed to the base plate 216 and the holding plate 222 while being twisted left and right to form a circle (a hatched portion is one wire). Thus, in the present embodiment, a total of 8
Vibration damper 214
Was configured.

With this configuration, the wire 224
Supports a vertical load as a truss, and exerts a damping force against a load from the horizontal direction due to the twisting of the wires 224 and the friction between the wires.

The vibration damper 214 is similar to that shown in FIG.
Compared with the coil-type vibration damper shown in the above, there is no need to form an accurate circle, and the fall angle can be set freely, and there is no particular problem even if the wire fixing position shifts back and forth, Good workability. Furthermore, the rigidity in the vertical and horizontal directions can be freely adjusted by adjusting the diameter of the wire, the size of the circle to be formed, and the angle of inclination of the wire.

Next, the vibration damper 240 according to the ninth embodiment
Will be described. As shown in FIG. 37 and FIG. 38, the vibration damper 240 bends the leaf spring 232 (iron, quenched steel plate, etc.) into a circular shape, and fixes one of the diameter directions to the floor beam 93 with the fixing plate 242. The other direction is fixed to the foundation beam 91 by a fixing plate 244.

With such a configuration, the load of the building 12 is supported in the strong axis direction (width direction) of the leaf spring 232, and
The vibration acting in the horizontal direction is attenuated by the deformation rigidity when the circle is transformed into an ellipse.

In the present embodiment, a circular shape is constituted by one leaf spring, but a circular shape may be constituted by combining two semicircular leaf springs. Further, the leaf spring may be previously curved so as to have an elliptical shape so as to have directionality in the horizontal direction.

The rigidity in the vertical direction can be adjusted by the thickness and width of the leaf spring, and the rigidity in the horizontal direction can be adjusted by the size (diameter) and thickness of the circle. Further, the rigidity can be improved by stacking the leaf springs.

Next, the vibration damper 23 according to the tenth embodiment
0 will be explained. As shown in FIGS. 39 and 40, the vibration damper 230 has a leaf spring 232 bent in a circular shape, and the upper part in the diametric direction is fixed by the fixing plate 236 and the lower part is fixed by the fixing plate 234. The fixing plates 234 and 236 are attached to the floor beam 92 and the foundation beam 90.

As shown in FIG. 40, four leaf springs 232 are arranged so that the curved portions protrude in the X-axis and Y-axis directions, so that the leaf springs 232 can cope with the swinging of the building 12 in the front-rear and left-right directions.

With such a configuration, vertical vibration is attenuated by the bending and restoring force of the leaf spring 232, and horizontal vibration is attenuated by the torsion of the leaf spring 232. In order to make the rigidity in the horizontal direction uniform, a leaf spring may be assembled in a ball shape as shown in FIG.

[0102]

According to the present invention, since the above construction is adopted, construction can be simplified and the building can have a vibration damping structure without taking up installation space.
Further, the vibration in the three-dimensional direction can be attenuated by the damper alone.

[Brief description of the drawings]

FIG. 1 is a perspective view of a vibration damping unit according to a first embodiment.

FIG. 2 is an elevational view showing a state where the vibration damping unit according to the first embodiment is attached to a building.

FIG. 3 is an overall view of a building to which the vibration damping unit according to the first embodiment is attached.

FIG. 4 is a floor plan of a building to which the vibration damping unit according to the first embodiment is attached.

FIG. 5 is an elevation view of the vibration damping unit according to the first embodiment before a building shakes.

FIG. 6 is an elevation view showing the movement of the vibration damping unit according to the first embodiment.

FIG. 7 is an elevation view showing the movement of the vibration damping unit according to the first embodiment.

FIG. 8 is a perspective view of a vibration damping unit according to a second embodiment.

FIG. 9 is an elevation view showing the movement of the vibration damping unit according to the second embodiment.

FIG. 10 is an exploded perspective view of a vibration damper according to a third embodiment.

FIG. 11 is a side view of a vibration damper according to a third embodiment.

FIG. 12 is a side view showing a movement of a vibration damper according to a third embodiment.

FIG. 13 is a front view showing a movement of a vibration damper according to a third embodiment.

FIG. 14 is an elevation view showing a mounted state of a vibration damper according to a third embodiment.

FIG. 15 is an exploded perspective view of a vibration damper according to a fourth embodiment.

FIG. 16 is a side view of a vibration damper according to a fourth embodiment.

FIG. 17 is a side view showing a movement of a vibration damper according to a fourth embodiment.

FIG. 18 is a front view showing a movement of a vibration damper according to a fourth embodiment.

FIG. 19 is a perspective view of a vibration damper according to a fifth embodiment.

FIG. 20 is an elevational view showing an attached state of a vibration damper according to a fifth embodiment.

FIG. 21 is an elevation view showing a movement of a vibration damper according to a fifth embodiment.

FIG. 22 is a perspective view of a vibration damper according to a sixth embodiment.

FIG. 23 is an elevational view showing an attached state of a vibration damper according to a sixth embodiment.

FIG. 24 is a cross-sectional plan view showing a mounted state of a vibration damper according to a sixth embodiment.

FIG. 25 is an elevation view showing the movement of a vibration damper according to a sixth embodiment.

FIG. 26 is a plan view showing another example of use of the vibration damper according to the sixth embodiment.

FIG. 27 is a side view showing a modification of the vibration damper according to the sixth embodiment.

FIG. 28 is a side view showing a modification of the vibration damper according to the sixth embodiment.

FIG. 29 is a side view showing a modification of the vibration damper according to the sixth embodiment.

FIG. 30 is a perspective view of a vibration damper according to a seventh embodiment.

FIG. 31 is an elevational view showing an attached state of a vibration damper according to a seventh embodiment.

FIG. 32 is an elevation view showing an example in which the vibration damper according to the seventh embodiment is used as a hanging material for a double floor material.

FIG. 33 is a perspective view showing a modification of the vibration damping unit according to the second embodiment.

FIG. 34 is a side view of a vibration damper according to an eighth embodiment.

FIG. 35 is a front view of a vibration damper according to an eighth embodiment.

FIG. 36 is a perspective view of a vibration damper according to an eighth embodiment.

FIG. 37 is an elevational view showing an attached state of a vibration damper according to a ninth embodiment.

FIG. 38 is a perspective view of a main part of a vibration damper according to a ninth embodiment.

FIG. 39 is an elevational view showing an attached state of a vibration damper according to a tenth embodiment.

FIG. 40 is a perspective view of a main part of a vibration damper according to a tenth embodiment.

[Description of Signs] 14 Frame 16 Vertical frame 18 Horizontal frame 28 First wire (first wire) 30 Second wire (second wire) 32 Connecting member 34 Damper (energy absorbing means) 38 Oblique wire (oblique wire) 40 Adjustable horizontal frame 41 Turnbuckle (tensile means) 46 First arm (expandable means) 48 Second arm (expandable means) 50 Pin (expandable means) 60 Frame 62 Vertical frame 64 Horizontal frame 68 First brace 72 Second brace 74 Connecting member 94 Ring (first ring, second ring) 96 Connecting member (upper connecting member, lower connecting member) 86A First coil 86B Second coil 80 Connecting member (lower connecting member) 82 Connecting member (upper connecting member) 108 Wire (bar) 110 Block (connecting member) 114 Leaf spring 114A Bend 224 Wire 216 Base Plate (first connecting member, second connecting member) 220 Holding plate (first connecting member, second connecting member) 222 Holding plate (first connecting member, second connecting member) 232 Plate spring 242 Fixed plate (lower connecting member) ) 244 Fixing plate (upper connecting member)

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Takahiro Shintani 5-6-16-1 Maebaruhigashi, Funabashi City, Chiba Prefecture (72) Inventor Masaharu Kubota 2 Sanbancho, Chiyoda-ku, Tokyo Tobishima Construction Co., Ltd.

Claims (12)

[Claims] 1. A frame comprising a horizontal frame and a vertical frame,
A frame body that can be mounted in a wall of the building, a first brace one end of which is rotatably mounted on the upper horizontal frame, and a second brace that is rotatably mounted on the lower horizontal frame.
A brace, a connecting member rotatably connecting the free ends of the first brace and the second brace at a predetermined angle, and a movement of the connecting member provided on the horizontal frame and connected to the connecting member. A decaying energy absorbing means;
A vibration damping unit comprising: 2. It comprises a horizontal frame and a vertical frame,
A first wire connected to the upper horizontal frame and a second wire connected to the lower horizontal frame at a predetermined angle, the frame being attachable to a wall of the building; A connecting member for connecting a free end of the wire and the second wire, an energy absorbing means provided on the horizontal frame and connected to the connecting member to attenuate the movement of the connecting member, and disposed opposite to the energy absorbing means; A damping unit having one end connected to the horizontal frame and the other end connected to the connecting member, and a diagonal wire extending in a state where energy is not input to the building. 3. The vibration control mechanism according to claim 2, further comprising tension means for introducing an initial tension to the first wire, the second wire, and the oblique wire. 4. An adjustable horizontal frame is disposed above the horizontal frame disposed above, and the adjusted horizontal frame and the horizontal frame are connected by an expandable and contractible means. Item 3. The vibration control mechanism according to Item 2. 5. A first ring disposed at a predetermined interval and inclined to the left, and a second ring disposed at a predetermined interval and inclined to the right.
A ring, an upper connecting member for fixing upper portions of the first ring and the second ring, and a lower connecting member for fixing lower portions of the first ring and the second ring. Damping damper. 6. A first coil that draws a spiral and inclines to the left, a second coil that draws a spiral and inclines to the right,
A vibration damper, comprising: an upper connecting member for fixing upper portions of a coil and the second coil; and a lower connecting member for fixing lower portions of the first coil and the second coil. 7. The vibration damper according to claim 5, wherein the ring and the coil are formed of a twisted wire. 8. A vibration damper, wherein both ends of a plurality of curved bars are connected to connecting members arranged vertically, so that the outer shape of the bars is substantially spherical. 9. A vibration damper characterized in that a bent portion is formed on the leaf spring so that the leaf spring can expand and contract in the longitudinal direction. 10. A vibration damper characterized in that the leaf spring has two bent portions which are capable of extending and contracting in the longitudinal direction, and the bending directions of the two bent portions are different by 90 degrees. 11. A first connecting member for fixing a substantially middle portion of a wire having a predetermined length, and a first connecting member is disposed to face the first connecting member, and is bent in a circular shape in a side view to draw a truss shape in a front view. And a second connecting member for fixing an end of the wire twisted in the vibration damper. 12. A bent and ring-shaped leaf spring,
An upper connecting member for fixing one end in the plate width direction or one of the plate surfaces of the leaf spring to the upper structure, and a lower connection for fixing the other end in the plate width direction or the other of the plate surface of the leaf spring to the lower structure. And a member.