JP2002235454A - Vibration damper device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To exhibit designated damping performance even after a long period of time to the utmost by simply correcting an error in a job site to efficiently construct a damper device even if there is an assembling error in a framework of a structure without applying extra deforming force to an energy absorbing material. SOLUTION: In this vibration damper device A, visco-elastic bodies 3, 3 are interposed in layers between the opposite surfaces of two outer steel sheet plates 11 disposed in parallel at a space therebetween and an inner steel sheet plate disposed in parallel in the middle position of the plates. A plurality of joining bolt holes 1a, 2a... bored in the end parts of the respective steel sheet plates 1, 1 and 2 are formed as elongated holes laid along the direction of intersecting perpendicularly to each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration damper device, and more particularly to a vibration damper for a building, such as a building, which is subjected to an interlayer displacement force, such as a wind pressure or an earthquake, by absorbing the vibration energy thereof. And to attenuate vibration
The present invention relates to a damping device that is used by being incorporated as a brace, a brace or a damping wall in a structural frame of an existing or newly-built building.

[0002]

2. Description of the Related Art As shown in FIGS. 14 and 15, for example, a conventional vibration damper device of this type is configured such that a bolt or the like is fastened to one of opposed portions of a structural frame composed of columns and beams. Two outer rigid plate members 1, 1 such as steel plate plates having a plurality of joining holes 1a which can be joined via a fixing tool and arranged in parallel at a distance from each other; A plurality of joining holes 2a which can be joined via a fastening fixture such as a bolt at the other of the opposing portions, and is disposed at an intermediate position between the two outer rigid plate materials 1 and 1 in parallel with them. Energy absorbing materials 3 and 3 such as viscoelastic bodies are interposed in layers between the opposing surfaces of the inner rigid plate 2 such as a single steel plate and the like. When displacement occurs, the inner and outer rigid plate materials 1, 1, 2 are shown in FIG.
, The displacement (amplitude) energy is absorbed by the shear deformation of the energy absorbing members 3 to attenuate the swaying motion and vibration of the building.

[0003]

By the way, in the conventional general vibration damper described above, the outer rigid plate members 1, 1
.. Are also connected to the inner rigid plate 2 side.
... are both formed as round holes having a diameter equal to or substantially equal to the outer diameter of a fastening fixture such as a bolt.
The center-to-center distances of a..., 2a. On the other hand, the structural frame on the side on which the vibration damper device is erected often has manufacturing errors and assembly errors of structural members,
Due to the occurrence of such an error, the distance between the damper mounting holes at the opposing portion on the skeleton side and the joint holes 1a.
a becomes inconsistent with each other, or the damper mounting holes and the joining holes 1a, 2a are displaced in a direction orthogonal to the erection direction, and the damper device is brought into a predetermined posture. It is easy to cause a situation where it cannot be installed.

[0004] As a means for responding to such a situation, conventionally,
By applying a tensile load or a compressive load to the inner and outer rigid plate materials 1, 1 and 2 in the direction of relative displacement between them or in the direction orthogonal thereto, and deforming the energy absorbing materials 3 and 3 such as viscoelastic bodies, the two joint holes are formed. The mounting adjustment work for matching the distance between the centers of 1a... 2a to the distance between the damper mounting holes on the structural frame side, and correcting the displacement of the damper mounting holes and the joining holes 1a. In addition to the work done on site, measures were taken to install a vibration damper device.

[0005] The conventional vibration damper device which requires the mounting and adjusting work as described above requires a great deal of work on the site for the adjustment and is extremely poor in workability. Since an extra deformation force is added to the energy absorbing material, the original deformation ability of the energy absorbing material is impaired, and the deformation range is narrowed. Further, even after the erection, the energy absorbing member is still subjected to an excessive deformation force, and thus causes permanent deformation. In particular, when a viscoelastic material having a material property with a large damping property is used as the energy absorbing material, an excessive deformation force is continuously applied, so that the stress is relaxed and the shear thickness of the viscoelastic material is reduced. . As a result, there is a problem that the energy absorption performance inherent in the energy absorbing material cannot be secured, and the damping performance of the vibration damper device cannot be maximized.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described circumstances, and it is possible to easily correct errors on the site and efficiently perform the work regardless of the presence of an assembly error on the structural frame side. It is an object of the present invention to provide a vibration damper device that is capable of exerting a predetermined damping performance even after a long period of time without applying an excessive deformation force to the energy absorbing material.

[0007]

In order to achieve the above object, a vibration damper according to the first aspect of the present invention has a first connecting hole which can be connected to one of the opposing portions of a structural frame. A rigid plate, a second rigid plate having a joining hole connectable to the other of the opposing portions of the structural frame, and being disposed in parallel with the first rigid plate, the first rigid plate and the second rigid plate; In a vibration damper device comprising an energy absorbing material sandwiched in a gap between a facing surface with a rigid plate material,
The joining hole on the rigid plate side is formed as a long hole along the predetermined relative displacement direction of the first and second rigid plate or a direction orthogonal thereto, and the joining hole on the second rigid plate side is The first and second rigid plate members are formed in a direction perpendicular to a predetermined relative displacement direction or in a long hole along the relative displacement direction.

Further, the vibration damper device according to the second aspect of the present invention has a joint hole which can be joined to one of the opposing portions of the structural frame, and is arranged in parallel at a distance from each other. A plurality of first rigid plate members, and a joining hole that can be joined to the other of the opposing portions of the structural frame, and an intermediate position between adjacent first rigid plate members among the plurality of first rigid plate members. At least one second rigid plate arranged in parallel with the first rigid plate, and an even number of opposing surfaces formed by the first rigid plate and the second rigid plate interposed therebetween. In the vibration damper device provided with the energy absorbing material, the joining holes of the plurality of first rigid plate members are arranged in a predetermined relative displacement direction of the first and second rigid plate members or in a direction orthogonal thereto. Along the long hole along at least The joining hole on the side of the second rigid plate is formed in a direction perpendicular to the predetermined relative displacement direction of the first and second rigid plate or in a long hole along the relative displacement direction. It is.

According to the first and second aspects of the present invention, there is a manufacturing error or an assembly error of the structural member on the structural frame side on which the vibration damper device is installed. Even if the distance between the damper mounting holes of the opposing parts does not match the distance between the centers of the two joining holes on the damper device side, or if both holes are displaced in the direction orthogonal to the installation direction, Correct the error in the distance between the holes and the misalignment within the range of the long hole for joining, without applying extra deformation force such as tension or compression to the energy absorbing material, and disturbing the installation posture of the damper device And can be easily adjusted. This enables easy and efficient construction work even at sites where there is an assembly error, etc., and does not adversely affect the original deformation capacity and deformation range of the energy absorbing material. However, it is possible to maximize the predetermined damping performance.

[0010] In the vibration damper device according to the second aspect of the present invention, as described in the third aspect, a plurality of joining long holes on the first rigid plate material side are combined with the plurality of first rigid plate materials. By adopting a structure formed as a joining plate member that is fixed integrally, a plurality of first rigid plate members can be firmly connected to each other to increase buckling strength, and each of the plurality of first rigid plate members can be improved. As in the case where the long holes for joining are individually formed, it is not necessary to take time and effort for centering a plurality of long holes for joining, and the manufacturing can be facilitated.

According to a second aspect of the present invention, there is provided a vibration damper device comprising three or more odd first dampers.
In the case where the first rigid plate is composed of a rigid plate and two or more even rigid second rigid plates, the odd first rigid plates are integrally fixed to each other via a spacing member, and the first rigid plate is positioned at the intermediate position in the thickness direction. A long slot for joining on the first rigid plate side is formed in one rigid plate, while a long slot for joining on the second rigid plate side is formed in a joining plate member for fixing an even number of second rigid plates together. By adopting such a configuration, not only the buckling strength of the first and second rigid plate members can be increased, but also the entire device can be easily manufactured because only one long connecting hole is required on each side. In addition, the joining long holes on the first rigid plate member side and the second rigid plate member side can be arranged in the same plane, and the work of erection on the structural frame can be facilitated.

Further, in the vibration damper device according to the first and second aspects of the present invention, as described in the fifth aspect,
When combining a configuration in which a plurality of spacing maintaining spacers having a thickness equal to the layer thickness of the energy absorbing material is interposed between the opposing surfaces of the first rigid plate material and the second rigid plate material, when the damper device is not loaded And even if a compressive load is applied in the layer thickness direction of the energy absorbing material at the time of actual load operation, the load is received by the spacer, and the layer thickness of the energy absorbing material is kept constant over the entire area of the sandwiched layer, It is possible to prevent a decrease in the energy absorption performance due to a decrease in the layer thickness or the occurrence of permanent distortion, etc. The durability performance can be significantly improved. In addition, the presence of the spacer makes it possible to increase the buckling strength of each rigid plate, thereby reducing the thickness of each rigid plate and reducing the weight and cost of the entire damper device, or improving its durability. Can be planned.

[0013] As the spacer in the vibration damper device configured to combine the spacers for maintaining the spacing,
According to a sixth aspect of the present invention, the first and second rigid plate members are formed of a sliding member capable of generating a frictional resistance force when the first and second rigid plate members are displaced relative to each other. Any one composed of small rolling members may be used. In particular, when a sliding material that generates frictional resistance is used, damping performance due to frictional resistance is exhibited when the first and second rigid plate members are relatively displaced due to an earthquake or the like.
The performance of absorbing the vibration energy can be further enhanced, and the performance of the vibration damper as a whole can be further improved.

The energy absorbing material in the vibration damper according to any one of claims 1 to 7 may be a viscous fluid or an elastic body in addition to the viscoelastic body. It is optimal to use a viscoelastic body that has a hysteresis characteristic that stably absorbs displacements over a wide range and is effective in maintaining the performance by maintaining the shape.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing a first embodiment of a damping device of a damping wall type according to the present invention,
FIG. 2 is a front view of the vibration damper device A.
Of the first and second steel plate plates 1 and 2 (an example of a first rigid plate material and a second rigid plate material) one by one arranged in parallel at an interval from each other, the longitudinal direction of the first steel plate 1 At one end, as shown in FIG. 3, a steel column 11 and a steel beam 12
A plurality of joining bolt holes 1a, which can be joined by bolts, are formed in one of the gusset plates 14, 14 fixed to opposing portions of the upper and lower steel beams 12, 12 of the structural frame 13 composed of 2 Bolt holes 1a for joining the first steel plate 1 at one longitudinal end of the steel plate 2
On the side opposite to the side where... Are located, a plurality of joining bolt holes 2a that can be joined by bolts to the other gusset plate 14 in the structural frame 13 are formed.

A viscoelastic body 3, which is an example of an energy absorbing material, is interposed between the opposing surfaces of the first steel plate 1 and the second steel plate 2 in a layered manner. When the second steel plates 1 and 2 are displaced relative to each other in a predetermined direction indicated by arrows in FIGS. 1 and 2, the layered viscoelastic body 3 is sheared and absorbs its displacement energy to exert a vibration damping force. Is configured.

In the vibration damper device A having the basic configuration as described above, a plurality of joining bolt holes 1a at one end in the longitudinal direction of the first steel plate 1 are formed in both the steel plates 1 and 2 in FIG. Are formed in elongated holes along a predetermined relative displacement direction indicated by arrows, and a plurality of joining bolt holes 2a at one longitudinal end of the second steel plate 2 are formed with respect to the predetermined relative displacement direction. And is formed in a long hole extending in a direction orthogonal to the direction.

Each of the sandwiched layers of the viscoelastic body 3 has a thickness equal to the layer thickness of the viscoelastic body 3 between the opposing surfaces of the first and second steel plates 1 and 2 on both sides in the longitudinal direction. As a spacing maintaining spacer, a sliding member 4 made of a low friction material such as MC nylon or PTFE, which can generate a frictional resistance when the first and second steel plates 1 and 2 are relatively displaced.
4 are interposed.

As shown in FIG. 3, the vibration damper device A according to the first embodiment having the above-described structure is formed by joining the first and second steel plates 1 and 2 at both longitudinal ends thereof. Frame 1 through bolt holes 1a... 2a.
The gusset plates 14, 14 fixed to the opposing portions of the upper and lower steel beams 12, 12 in FIG. 3 are bolted to each other, and are erected in a vertical posture. Then, in such an erection use mode, a load such as wind force or seismic force acts on the steel columns 11 and the steel beams 12 of the structural frame 13 to cause interlayer displacement, and accordingly, the first and second steel plate 1. When the viscoelastic body 3 is displaced relative to each other in a predetermined direction indicated by arrows in FIGS. 1 and 2, the viscoelastic body 3 undergoes shear deformation to absorb the displacement energy and exhibit a vibration damping force.

Here, due to a manufacturing error of the structural members 11 and 12 on the structural frame 13 side on which the vibration damper device A is installed and an error in assembling the structural members 11 and 12, an opposing portion on the structural frame 13 side is generated. The distance between the bolt holes for mounting the damper of the gusset plates 14, 14 which are fixed does not match the distance between the centers of the connecting bolt holes 1a, 2a on the damper device A side, or the two bolt holes 1a, 2a ... And gusset plate 1
Even if the 4 and 14 side damper mounting bolt holes are displaced in the direction orthogonal to the damper erection direction, that is, in the horizontal direction with respect to the vertical direction, both bolt holes 1a
, 2a are elongated holes in the direction orthogonal to each other, so that the entire damper device A is moved within the range of the elongated holes as shown in FIG. And adjusting the position of the viscoelastic body 3 without applying any extra deformation force such as tension or compression to the viscoelastic body 3 and without tilting the damper device A while maintaining a predetermined vertical posture. Becomes possible. As a result, even in a site where there is an assembling error or the like, the erection can be easily and efficiently performed, and the viscoelastic body 3 does not have an adverse effect on the original deformation capability and the deformation range. Even afterwards, the predetermined damping performance can be maximized.

A sliding member 4 serving as a spacing maintaining spacer is provided between the opposing surfaces of the first and second steel plates 1 and 2.
4, even if a compressive load is applied in the thickness direction of the viscoelastic body 3 when the vibration damper device A is not loaded, the load is received by the sliding members 4 and 4 and the viscoelastic Prevents the permanent deformation of the body 3 and the reduction of the shear thickness due to stress relaxation, and keeps the shear thickness of the viscoelastic body 3 constant over the entire intervening layer thereof. It is.

Also, when a load such as an earthquake is applied,
The two steel plates 1 and 2 are kept in a parallel posture by the sliding members 4 and 4, and a large frictional resistance is generated due to the relative displacement of the two steel plates 1 and 2, and the frictional resistance causes attenuation. Since the performance is added, the vibration energy absorption performance is further enhanced, and the vibration damping performance of the entire vibration damper device A can be further enhanced.

Further, as shown by the imaginary line in FIG. 3, the vibration damper device A according to the first embodiment is provided with gusset plates 14 ', 14 fixed to diagonal corners of the structural frame 13. Also in the case of using as a brace for seismic reinforcement by being installed in an oblique posture across the space between the 'and', the damper device A as a whole as shown in FIG.
By moving in the range of the connecting bolt long holes 1a, 2a, as shown in the above, an error or displacement of the distance between the holes is corrected and extra deforming force such as tension or compression is applied to the viscoelastic body 3. In addition, it is possible to easily mount and adjust the damper device A while keeping the damper device A in the inclined position at a predetermined angle.

6 and 7 are a side view and a front view, respectively, showing a second embodiment of a damping device A of a damping wall type or a brace type. The damping device A according to the second embodiment is shown in FIGS. Are the first and second steel plate 1,
The space maintaining spacer interposed between the two opposing surfaces is formed by using rolling members 5 and 5 having a small frictional resistance such as a free-rotating hard ball or a bearing, and the other structure is the first structure. Since the configuration is the same as that of the vibration damper device A of the embodiment, the same reference numerals are given to the corresponding portions, and the description thereof will be omitted.

In the vibration damper device A according to the second embodiment, the vibration damper device A according to the first embodiment is used regardless of whether it is used as an anti-seismic reinforcing damping wall or as an anti-seismic reinforcing brace. Similar to the damper device A, the gusset plates 14, 14, or 14 ', on the structural frame 13 side due to the production errors of the structural members 11, 12 on the structural frame 13 side and the assembly errors thereof occur.
., The distance between the centers of the two connecting bolt holes 1a, 2a on the damper device A side, and the gusset plates 14, 14, or the two bolt holes 1a, 2a. The displacement bolts 14a, 14 'are offset from the damper mounting bolt holes in the direction perpendicular to the damper erection direction by the joining bolt elongated holes 1a,.
By moving the tamper device A in the range of..., It is possible to correct the error in the distance between the holes and the displacement and apply no extra deforming force such as tension or compression to the viscoelastic body 3. Mounting and adjustment can be easily performed while maintaining the posture or the oblique posture at a predetermined angle.

Even if a compressive load is applied in the thickness direction of the viscoelastic body 3 when no load is applied, the load is applied to the rolling members 5, 5
To prevent permanent deformation in the viscoelastic body 3 and decrease in the shear thickness due to stress relaxation, and reduce the shear thickness of the viscoelastic body 3 over the entire intervening layer thereof. In addition to being able to be kept constant, even when a load such as an earthquake is applied, the two steel plates 1, 2 are kept in a parallel posture by the rolling members 5, 5, and the two steel plates 1, In the relative displacement of 2, the viscoelastic body 3 is smoothly displaced relatively without adding a large frictional resistance, and secures the original shear deformation capability of the viscoelastic body 3 to maximize the vibration damping performance of the vibration damper device A as a whole. be able to.

FIGS. 8 and 9 are a side view and a front view, respectively, showing a third embodiment of a damping device A 'of a damping wall type or a brace type. The damping device according to the third embodiment is shown in FIGS. The apparatus A 'has a plurality of long bolt holes 1a, 1a,... At one longitudinal end of two outer steel plate plates 1, 1 (first rigid plate materials) arranged in parallel at a distance from each other. The longitudinal direction of one inner steel plate (an example of a second rigid plate) which is formed and arranged at an intermediate position between these two outer steel plates 1 and 2 in parallel with the steel plates 1 and 1 At one end, a plurality of connecting bolt long holes 2a are formed on the side opposite to the side where the above connecting bolt long holes 1a are located. Further, viscoelastic bodies 3, 3 as an example of an energy absorbing material are interposed in layers between the inner surfaces of the two outer steel plates 1, 1 and the opposing surfaces of both surfaces of the inner steel plate 2, respectively.
The layer thickness of the viscoelastic bodies 3 is equal to the thickness of the viscoelastic bodies 3 between the inner surfaces of the outer steel plates 1 and the opposing surfaces of the inner steel plate 2 on both sides in the longitudinal direction of the sandwiched layer of the viscoelastic bodies 3. Sliding members 4 and 4 made of a low friction material are interposed as spacers for maintaining a gap having a thickness.

The vibration damper A 'according to the third embodiment differs from the vibration damper according to the first and second embodiments in that the viscoelastic bodies 3, 3 are formed in two layers. Although it is different from A, it is easy to install and adjust to the assembly error etc. on the structural frame 13 side and has excellent workability, and the viscoelastic bodies 3 and 3 secure the original shear deformation ability and damping The fact that the vibration damping performance of the entire damper device A 'can be maximized is not different from the vibration damper device A according to the first and second embodiments.

In the third embodiment, instead of the sliding member 4, a rolling member 5 is used as the space maintaining spacer in the third embodiment.
May be used.

FIGS. 10 and 11 are a side view and a front view showing a fourth embodiment of a damping device A 'of a damping wall type or a brace type, respectively. The damping device according to the fourth embodiment is shown in FIGS. Apparatus A 'is provided between the two outer steel plate plates 1, 1 (first rigid plate material) at one end in the longitudinal direction of the two outer steel plate plates 1, 1 arranged in parallel at a distance from each other. A joining plate member 9, which is integrally fixed together through a holding member 6, a bolt 7, and a nut 8, is connected to the joining plate member 9, and a plurality of joining bolt long holes 1a are formed in the joining plate member 9. The above-mentioned joining is performed at one longitudinal end of one inner steel plate (an example of a second rigid plate) disposed at an intermediate position between the two outer steel plates 1 and 2 in parallel with the steel plates 1 and 1. Bolt holes 1a ... Are formed on the side opposite to the inner side of the outer steel plate 1, and between the opposing surfaces of the inner surfaces of the two outer steel plates 1 and 1 and the both surfaces of the inner steel plate 2, respectively. As an example of the energy absorbing material, the viscoelastic bodies 3, 3 are sandwiched in layers.

In the vibration damper device A 'according to the fourth embodiment, since the two outer steel plates 1, 1 are integrally fixed, the buckling strength can be increased, and the two It is not necessary to form a long joining hole individually in each of the steel plate plates 1, 1.
Since it is only necessary to form the joining long holes 1a in the hole, no trouble or labor is required for centering the holes, and the whole damper device A 'can be easily manufactured. In other respects, the viscoelastic bodies 3 are different from the vibration damper device A according to the first and second embodiments in that the viscoelastic bodies 3 and 3 are formed in two layers. It is easy to adjust for attachment error, etc. and excellent in workability, secures the original shear deformation capacity of the viscoelastic bodies 3, 3 and maximizes the vibration damping performance of the vibration damper A 'as a whole The gain is not different from the vibration damper device A according to the first and second embodiments.

FIGS. 12 and 13 are a side view and a front view, respectively, showing a fifth embodiment of a damping device A 'of a damping wall type or a brace type. The damping device according to the fifth embodiment is shown in FIGS. Apparatus A ′ is composed of three first steel plates 1 arranged in parallel at a distance from each other, and two intermediate steel plates 1 and 1 arranged at an intermediate position between adjacent first steel plates 1 and 1, respectively. Two second steel plates 2,
2 and a total of four viscoelastic bodies 3 are sandwiched in layers between the opposing surfaces of the second steel plate 2 and the first steel plate 1 and the first steel plate 1. Are fixed together via the spacing members 6, 6 and the bolts 7 and the nuts 8, and the first steel plate 1 at the intermediate position in the thickness direction is fixed.
Only the steel plate 1 extends outwardly from the other first steel plate 1, 1, and a plurality of joining long holes 1 a. The plates 2, 2 are also spaced from each other by the spacing members 6 ', 6' and the bolts 7 ',
A joining plate member 9 ', which is collectively and integrally fixed via a nut 8', is connected, and a plurality of joining bolt elongated holes 2a are formed in the joining plate member 9 '.

The vibration damper device A 'according to the fifth embodiment not only increases the buckling strength of the first and second steel plate plates 1,... Since the long holes 1a ..., 2a ... need only be formed in one plate 1 and the plate member 9 ', the manufacture of the entire apparatus becomes easy, and further, the first steel plate 1 ... side and the second steel plate 2,2. , 2a... Can be arranged in the same plane, and the work of erection on the structural frame 13 can be facilitated. In addition, the mounting adjustment for the structural frame 13 side is easy and the mounting is easy, and the workability is excellent. The viscoelastic body 3... The fact that the vibration damping performance can be maximized is not different from the vibration damper devices A and A 'according to the above embodiments.

In the fifth embodiment, three first steel plates 1 and two second steel plates 2 are used. However, an odd number of five or more first steel plates 1 is used. And four or more even-numbered second steel plates 2 ...
A structure similar to the above may be adopted for a combination of the above.

Further, in each of the above embodiments, the configuration in the case where the present invention is applied to a brace type or a damping wall type damping device has been described in detail. The same vibration damping performance can be obtained by applying the present invention to the like.

[0036]

As described above, according to the first and second aspects of the present invention, there are manufacturing errors and assembling errors of the structural members on the frame side of the structure on which the vibration damper device is installed. As a result, the distance between the damper mounting holes at the opposing portion on the skeleton side and the distance between the centers of the two joining holes on the damper device side do not match, or the two holes are displaced in the direction orthogonal to the installation direction. Even if it is, it can be installed easily without applying any extra deformation force such as tension or compression to the energy absorbing material, and without disturbing the installation posture of the damper device. Because it can be adjusted, the damper device can be installed easily and efficiently even at the site where there is an assembly error, etc.
Since there is no adverse effect on the original deformation capacity and the deformation range of the energy absorbing material at the time of the construction, there is an effect that the predetermined damping performance can be maximized even after a long period of time.

In particular, in the vibration damper device according to the second aspect of the present invention, by adopting the configuration as set forth in the third aspect, it is possible to increase the buckling strength of the plurality of first rigid plate members. In addition to the above, it is possible to eliminate the need for labor and labor for aligning a plurality of joining long holes as in the case of forming the joining long holes individually in each of the plurality of first rigid plate materials, and to manufacture the apparatus. Can be facilitated.

Further, in the vibration damper device according to the second aspect of the present invention, the buckling strength of the first and second rigid plate members can be increased by employing the configuration as described in the fourth aspect. In addition, since the joining long holes on each side may be formed in one member, the manufacture of the entire apparatus becomes easy, and the joining long holes on the first rigid plate material side and the second rigid plate material side are formed. Since they can be arranged in the same plane, the work of erection on the structural frame can be further facilitated.

Further, in the vibration damper device according to the first or second aspect, by adopting a configuration in which the spacer for maintaining the interval is interposed as described in the fifth aspect, at the time of no load and actual load. Even if a compressive load is applied in the direction of the thickness of the energy absorbing material during operation, the thickness of the energy absorbing material is kept constant over the entire intervening layer to reduce the thickness and reduce permanent set. It is possible to prevent a decrease in the energy absorption performance due to the occurrence of vibration, etc., and together with avoiding the adverse effect on the deformation capacity and the deformation range at the time of erection, markedly improve the vibration damper performance and its durability. Can be achieved. In addition, the buckling strength of each rigid plate is increased, and the weight and cost of the entire damper device can be reduced by reducing the thickness of each rigid plate, or the durability thereof can be improved.

In particular, in the case where the sliding member which generates a frictional resistance is used as the spacer for maintaining the distance, the frictional resistance is generated when the first and second rigid plate members are relatively displaced by an earthquake or the like. The damping performance can be added, and the performance of absorbing vibration energy can be further enhanced, so that the performance of the entire vibration damper can be further improved.

[Brief description of the drawings]

FIG. 1 is a side view showing a first embodiment of a damping device of a damping wall type according to the present invention.

FIG. 2 is a front view of the vibration damper device.

FIG. 3 is a front view showing a usage state of the vibration damper device.

FIGS. 4A and 4B are schematic front views illustrating mounting adjustment when used as a vibration damping wall for seismic reinforcement.

5 (a) and 5 (b) are schematic front views for explaining mounting adjustment when used as a brace for seismic reinforcement.

FIG. 6 is a side view showing a second embodiment of a damping device of a damping wall type or a brace type.

FIG. 7 is a front view of the vibration damper device.

FIG. 8 is a side view showing a third embodiment of a damping device of a damping wall type or a brace type.

FIG. 9 is a front view of the vibration damper device.

FIG. 10 is a side view showing a fourth embodiment of a damping device of a damping wall type or a brace type.

FIG. 11 is a front view of the vibration damper device.

FIG. 12 is a side view showing a fifth embodiment of a damping device of a damping wall type or a brace type.

FIG. 13 is a front view of the vibration damper device.

FIG. 14 is a side view showing a conventional vibration damper device.

FIG. 15 is a front view showing a conventional vibration damper device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Outside (1st) steel plate (an example of a 1st rigid plate) 1a Slotted bolt long hole 2 Inner (2nd) steel plate (an example of a 2nd rigid plate) 2a Slotted bolt elongated 3 Viscoelastic body (energy Example of absorbing material 4 Sliding material (example of spacer for maintaining spacing) 5 Rolling member (other example of spacer for maintaining spacing) 6,6 'Spacing member 9,9' Plate member for joining 13 Frame for structure A, A 'damping device

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) F16F 15/023 F16F 15/023 A 15/04 15/04 A

Claims (8)

[Claims] 1. A first rigid plate member having a joining hole that can be joined to one of the opposing portions of a structural skeleton, and a joining hole that can be joined to the other of the opposing portions of the structural skeleton, and First
A vibration damper device comprising: a second rigid plate arranged in parallel with a rigid plate; and an energy absorbing material sandwiched in a gap between opposing surfaces of the first rigid plate and the second rigid plate. The joining hole on the side of the first rigid plate is formed as an elongated hole along a predetermined relative displacement direction of the first and second rigid plates or a direction orthogonal thereto, and the joining on the side of the second rigid plate. A vibration damper device wherein the use hole is formed in a direction perpendicular to a predetermined relative displacement direction of the first and second rigid plate members or in a long hole along the relative displacement direction. 2. A plurality of first rigid plate members having joint holes that can be joined to one of the opposing portions of the structural skeleton and arranged in parallel at a distance from each other, and the structural skeleton. And has a joining hole that can be joined to the other of the opposing portions, and is disposed at an intermediate position between adjacent first rigid plate members of the plurality of first rigid plate members in parallel with the first rigid plate members. A vibration damper including at least one second rigid plate and an energy absorbing material sandwiched in gaps between an even number of opposing surfaces formed by the first rigid plate and the second rigid plate. In the apparatus, at least one of the plurality of joining holes on the first rigid plate material side is formed in a long hole along a predetermined relative displacement direction of the first and second rigid plate materials or a direction orthogonal thereto. The bonding holes on the second rigid plate side are the first and the second Vibration damper device being characterized in that formed in the elongated hole along the direction or relative displacement direction perpendicular to the predetermined direction of relative displacement rigid plate. 3. The joining plate member for joining the plurality of first rigid plate members together and integrally fixing the plurality of first rigid plate members together with the plurality of first rigid plate members. Vibration damper device. 4. An odd-numbered first rigid plate is composed of three or more odd-numbered first rigid plate members and two or more even-numbered second rigid plate members, and the odd-numbered first rigid plate members are integrated with each other via a spacing member. And a first rigid plate at the middle position in the thickness direction is formed with a long slot for joining on the first rigid plate side, while an even number of second rigid plates are collectively fixed together for joining. The vibration damper device according to claim 2, wherein a long hole for joining on the second rigid plate material side is formed in the plate member. 5. A plurality of spacing spacers having a thickness equal to a layer thickness of the energy absorbing material is interposed between opposing surfaces of the first rigid plate and the second rigid plate. Or the vibration damper according to 2. 6. The vibration damper device according to claim 5, wherein the spacer for maintaining the interval is formed of a sliding member capable of generating a frictional resistance force when the first and second rigid plate members are relatively displaced. 7. The vibration damper device according to claim 5, wherein the spacer for maintaining the interval is formed of a rolling member having a small frictional resistance. 8. The energy absorbing material is selected from a viscoelastic material, a viscous fluid, and an elastic material.
8. The vibration damper according to any one of claims 7 to 7.