JP2009280963A - Vibration control frame using composite damper - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vibration control frame which enhances buckling strength of a steel-based hysteretic damper. <P>SOLUTION: This vibration control frame includes the pair of steel-based hysteretic dampers 10 which are arranged in an approximate V-shape in the plane of the frame 1 of a building, a viscoelastic body damper 30 which is connected to a joint material 20 provided in a point of intersection of the pair of steel-based hysteretic dampers 10, and a stiffening plate 40 for restraining a joint material 20 from being deformed in the out-of-plane direction of the frame 1. For example, the stiffening plate 40 is provided outside the steel-based hysteretic dampers 10 or outside the viscoelastic body damper 30. In addition, the stiffening plate 40 is arranged in such a manner as to sandwich the joint material 20 from the out-of-plane direction of the frame 1, and provided in such a manner as to directly or indirectly abut on the joint material 20. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vibration control frame for reducing the shaking of a building due to an earthquake, a wind, or the like, and more particularly, to a vibration control frame using a composite damper including a steel-based hysteretic damper and a viscoelastic damper.

  Conventionally, development of a vibration control frame aimed at reducing the shaking of buildings due to wind loads, small earthquakes and large earthquakes has been underway. As an example of such a vibration control frame, a steel-based hysteretic damper disposed in a K-type or a V-type in the plane of the building and a viscous material connected in series to the steel-based hysteretic damper. There is a vibration control frame provided with an elastic damper (see, for example, Patent Document 1). According to this damping structure, vibration energy of small amplitude caused by wind loads and small earthquakes can be absorbed by the damping characteristics of the viscoelastic damper, and vibration energy of large amplitude caused by large earthquakes can be absorbed by the elastic hysteresis of steel-based hysteretic dampers. It can be absorbed by the characteristics, and can control vibrations with a wide amplitude as a whole.

Japanese Patent Laid-Open No. 10-280727

  However, the steel-based hysteretic damper effectively absorbs vibration energy by receiving axial force (compression force / tensile force) along the member axial direction and causing plastic deformation of the member. When a steel-based hysteretic damper is deformed in the out-of-plane direction of a frame during a large earthquake, there is a possibility that compression buckling will occur at an early stage and compression strength cannot be fully demonstrated. In particular, viscoelastic dampers are constructed by alternately stacking steel plates and viscoelastic bodies, and depending on the setting of the compression rigidity of the viscoelastic body, the viscoelastic body damper may have a lower rigidity in the out-of-plane direction. When such a viscoelastic damper is combined with a steel-based hysteretic damper, the deformation of the steel-based hysteretic damper in the out-of-plane direction may occur synergistically.

  The present invention has been made to solve the above-described problems of the prior art, and an object thereof is to provide a vibration damping frame using a composite damper that can improve the buckling strength of a steel-based hysteretic damper. And

  In order to solve the above-described problems and achieve the object, the vibration damping structure using the composite damper according to claim 1 is a pair of large-amplitude components arranged in a substantially V shape in the plane of the building structure. Attenuating means, a small-amplitude attenuating means connected to the mutual connecting portion of the pair of large-amplitude attenuating means, and out-of-plane deformation for suppressing deformation of the connecting portion in the out-of-plane direction of the frame And a suppression means.

  Further, the vibration damping frame by the composite damper according to claim 2 is the vibration damping frame by the composite damper according to claim 1, wherein the out-of-plane deformation suppressing means is disposed outside the large-amplitude damping means. It is provided outside the small amplitude attenuating means.

  According to a third aspect of the present invention, there is provided the vibration damping structure using the composite damper according to the third aspect, wherein the out-of-plane deformation suppressing means is configured to connect the connecting portion from the out-of-plane direction of the frame. It is arrange | positioned so that it may be pinched | interposed, Comprising: It comprises a pair of contact part which contact | abuts the said connection part directly or indirectly, It is characterized by the above-mentioned.

  According to a fourth aspect of the present invention, there is provided the vibration damping structure using the composite damper according to the fourth aspect, wherein the contact portion is supported by a beam or a column constituting the frame. It is a flat material, Comprising: The flat material arrange | positioned along the outer surface of the said connection part substantially parallel is characterized by the above-mentioned.

  According to a fifth aspect of the present invention, there is provided a vibration control structure using the composite damper according to the fifth aspect, wherein the vibration control structure using the composite damper according to the third aspect includes a pair of wands fixed to the floor supported by the structure. The contact portion is provided at the tip of the pair of wands.

  Further, the vibration control frame by the composite damper according to claim 6 is the vibration control frame by the composite damper according to claim 2, which is provided on a beam or a column constituting the frame, The connecting portion is provided with a slider portion that can reciprocate along the member axial direction of the beam or the column.

  According to a seventh aspect of the present invention, there is provided a vibration damping frame comprising a composite damper, wherein a pair of large-amplitude damping means and a pair of large-amplitude damping means are arranged in a substantially V shape within the surface of the building frame. A small-amplitude attenuating means connected to the mutual connecting portion, and an out-of-plane deformation suppressing means for suppressing the large-amplitude attenuating means from being deformed in the out-of-plane direction of the frame. It is provided inside the means.

  According to the vibration damping frame using the composite damper according to the first aspect, the out-of-plane deformation suppressing means can suppress the deformation in the out-of-plane direction of the frame of the connecting portion. Can be set short, so that the compression resistance of the large-amplitude attenuation means can be effectively exhibited.

  Further, according to the vibration damping frame by the composite damper according to claim 2, the out-of-plane deformation suppressing means is provided outside the large-amplitude damping means or outside the small-amplitude damping means. The outward deformation can be directly suppressed, and the compression resistance of the large-amplitude damping means can be more effectively exhibited. In addition, since the out-of-plane deformation suppressing means is provided outside, it is easy to adjust the shape and installation location of the out-of-plane deformation suppressing means, and the construction error of the vibration control frame can be absorbed. Can be attached regardless of whether it is a new construction or an existing construction, and the workability of the out-of-plane deformation suppressing means can be improved.

  Further, according to the vibration damping frame by the composite damper according to claim 3, since the contact portion is provided at a position sandwiching the connection portion, it can be easily attached and the workability of the contact portion is further improved. Can do.

  Further, according to the vibration damping frame using the composite damper according to claim 4, since the contact portion is provided by using the beam or the column of the frame, it is necessary to include a special member or the like that supports the contact portion. Therefore, the installation cost of the contact portion can be suppressed.

  Moreover, according to the vibration damping frame by the composite type damper according to claim 5, it is possible to resist the deformation in the out-of-plane direction of the frame of the connecting portion because the cane functions as a diagonal material / brace material. Therefore, the structural stability can be enhanced, and the buckling strength of the large amplitude damping means can be further improved.

  Further, according to the vibration control frame by the composite damper according to claim 6, since the slider portion is provided between the connection portion and the beam or column of the frame, the slider portion of the frame is exposed in the out-of-plane direction. In addition to being able to effectively use the indoor space, it is possible to further improve the design in the vicinity of the connecting portion.

  In addition, according to the vibration control structure using the composite damper according to claim 7, since the out-of-plane deformation suppressing means is provided inside the small-amplitude damping means, it is possible to save the trouble of installation on site, The property can be further improved. Moreover, since the out-of-plane deformation suppressing means is not exposed to the outside, the indoor space can be used effectively and the design can be further improved.

  Hereinafter, with reference to the attached drawings, each embodiment of a vibration control frame by a composite damper according to the present invention will be described in detail, and a modification example to each embodiment will be described. However, the present invention is not limited by these embodiments.

[Embodiment 1]
First, the first embodiment will be described. In the first embodiment, the out-of-plane deformation suppressing means is provided outside the vibration control frame.

(Constitution)
FIG. 1 is a front view of a vibration control frame by a composite damper according to Embodiment 1, and FIG. 2 is an enlarged view of a main part of FIG. The vibration damping frame using the composite damper includes a frame 1, a steel material hysteresis type damper 10, a joint material 20, a viscoelastic damper 30, and a contact plate 40.

(Configuration-frame)
The frame 1 is configured by combining upper and lower beam members 2 and 3 and left and right column members 4 and 5. Hereinafter, the inside of the substantially rectangular plane formed by the upper and lower beam members 2 and 3 and the left and right column members 4 and 5 is referred to as “in the plane of the frame 1”. Although the structure type of this frame 1 is arbitrary, for example, a ramen structure or an arch structure is applicable. Moreover, although the concrete structural material of this frame 1 is arbitrary, for example, a reinforced concrete structure, a steel structure, a wooden structure, etc. correspond.

(Configuration-Steel-based hysteretic damper)
The pair of steel-based hysteretic dampers 10 corresponds to the large-amplitude damping means in the claims, and is a joint material provided in the vicinity of the center point of the upper beam member 2 in the member axial direction within the surface of the frame 1. It arrange | positions so that it may extend from 20 to the edge part vicinity of the member axial direction of the lower beam member 3, and a V-shaped damping structure is comprised as a whole by arrange | positioning a pair of steel material type | system | group hysteresis type damper 10 in this way. Has been. The steel material history type damper 10 includes a connecting member 11, a steel material history type damper main body 12, and a restraining member 13.

  The connecting member 11 connects the steel-based hysteretic damper main body 12 and the lower beam member 3 or connects the steel-based hysteretic damper main body 12 and the joint material 20. Are connected to the steel-based hysteretic damper main body 12, the lower beam member 3, and the joint material 20 by welding, bolts, or the like.

  The steel-based hysteretic damper main body 12 absorbs the vibration energy of the frame 1 by means of elastic-plastic hysteresis characteristics. Specifically, the steel-based hysteretic damper main body 12 is an elastic-plastic member whose longitudinal cross-sectional shape substantially corresponds to the connecting member 11, It is arranged between the lower beam member 3 and the joint material 20 via the member 11. The material constituting the steel-based hysteretic damper main body 12 is arbitrary, for example, an ultra-soft steel material that yields with a smaller stress than ordinary steel material.

  The restraining member 13 suppresses buckling of the steel-based hysteretic damper main body 12, is a hollow steel pipe formed in a substantially long cylindrical shape, and is fixed at a position covering the periphery of the steel-based hysteretic damper main body 12. Yes. The restraining member 13 is made of a steel material having a higher yield point than the steel-based hysteretic damper main body 12, and the steel-based hysteretic damper main body 12 is between the constraining member 13 and the steel-based hysteretic damper main body 12. A covering member (not shown) made of concrete or the like is provided in a state that does not hinder the axial deformation.

(Configuration-Joint material)
The joint material 20 corresponds to the connection portion in the claims, and is configured as a hollow rectangular parallelepiped using a steel material, and is disposed at an intersection point on an extension line of the pair of steel material hysteretic dampers 10.

(Configuration-viscoelastic damper)
The pair of viscoelastic dampers 30 absorbs the vibration energy of the frame 1 by the damping characteristic, and corresponds to the small-amplitude damping means in the claims. The pair of viscoelastic dampers 30 are provided substantially symmetrically about the joint material 20, and are disposed along the substantially horizontal direction from the horizontal end of the joint material 20 within the frame 1.

  3 is a cross-sectional view taken along the line AA in FIG. As shown in FIG. 3, the viscoelastic body damper 30 includes a resistance plate 30a and a viscoelastic body 30b. The resistance plate 30a is a substantially plate-shaped steel plate, and a plurality of resistance plates 30a are arranged in a laminated manner at a predetermined interval. The viscoelastic body 30b is a planar plate-like body that substantially corresponds to the resistance plate 30a, and is fixed to the resistance plate 30a by vulcanization adhesion or the like, and with respect to relative displacement between the resistance plates 30a. Follows with shear deformation. The material which comprises this viscoelastic body 30b is arbitrary, For example, high molecular weight materials, such as rubber type, an acrylic type, asphalt type, or a silicon type, correspond. The viscoelastic damper 30 includes a pin hole 30c penetrating the viscoelastic body 30b and the resistance plate 30a in the stacking direction, a substantially cylindrical pin 30d inserted into the pin hole 30c, and the pin 30d. Is provided with a drop prevention pin 30e that prevents the pin from falling out of the pin hole 30c. Here, by making the inner diameter of the pin hole 30c larger than the outer diameter of the pin 30d, a gap allowing shear deformation of the viscoelastic body 30b is formed between the pin 30d and the pin hole 30c. The viscoelastic damper 30 configured in this manner is disposed between the joint material 20 and the bracket 32 via the connecting member 31, and is a resistance layered in a direction substantially orthogonal to the in-plane direction of the frame 1. The plate 30a is connected to the connecting member 31 with a bolt or the like.

  The steel material history type damper 10 and the viscoelastic damper 30 configured as described above function as follows. That is, in response to a small amplitude fluctuation caused by a small earthquake or wind, the viscoelastic body 30b of the viscoelastic damper 30 is sheared to absorb vibration energy. In addition, with respect to large amplitude vibration due to a large earthquake, deformation of the viscoelastic body 30b of the viscoelastic body damper 30 is suppressed by the pin 30d, and the steel system history type damper main body 12 of the steel system history type damper 10 is deformed. By absorbing vibration energy.

(Configuration-patch plate)
Next, the backing plate 40 will be described. 4 is a cross-sectional view taken along the line BB in FIG. 2, and FIG. 5 is an enlarged view of the main part of FIG. The pair of contact plates 40 suppresses deformation in the out-of-plane direction of the frame 1 of the joint material 20 by bending resistance, and corresponds to out-of-plane deformation suppressing means in the claims. The pair of contact plates 40 is formed from a substantially plate-shaped steel plate, and is erected so as to sandwich the joint material 20 along the substantially vertical direction from the lower end portion of the upper beam member 2. It is provided at a position facing the side surface of the joint material 20 and is fixed to the upper beam member 2 by welding or the like.

  The contact plate 40 may be disposed at a position where it abuts against the joint material 20 in a non-deformed state, or only when the joint material 20 is deformed beyond a predetermined allowable range. You may arrange | position in the position which touches. As a deformation factor of the joint material 20, in addition to vibration, a temperature change and a construction error may be considered. Further, the contact plate 40 may be brought into direct contact with the joint material 20 or may be brought into contact with the joint material 20 via another member. In the present embodiment, a sliding material 41, a fitting member 42, and a counterpart material 21 are provided between the backing plate 40 and the joint material 20. The sliding material 41 enables the contact plate 40 and the joint material 20 to slide with each other under a specific pressure, and is formed in a substantially plate shape from a fluororesin material such as a PTFE material, for example. The fitting member 42 is a steel flat plate fixed by welding or the like to the surface on the joint material 20 side of the backing plate 40 in order to fix the sliding material 41 to the backing plate 40. A recess is provided. The counterpart material 21 is a stainless steel plate fixed to the surface of the joint material 20 on the side of the contact plate 40 by welding or the like, and reduces friction with the sliding material 41. In addition to the present embodiment, only the sliding material 41 may be provided between the backing plate 40 and the joint material 20. In this case, the sliding material 41 is fixed to the side surface of the backing plate 40 or the joint material 20 with an adhesive or the like.

The function of the backing plate 40 configured in this way is as follows. First, assuming a structure in which the backing plate 40 is not provided, the viscoelastic damper 30 is a laminate of a plurality of resistance plates 30a and viscoelastic bodies 30b. There is a possibility of deformation in the 30 stacking direction. At the time of this deformation, the joint material 20 is deformed in the out-of-plane direction, and accordingly, the steel-based hysteretic damper 10 is also deformed in the out-of-plane direction of the frame 1. Thereby, the restraint state of the steel-based hysteretic damper 10 is such that the end of the steel-based hysteretic damper 10 on the lower beam member 3 side is a fixed end, and the end of the steel-based hysteretic damper 10 on the joint material 20 side is a free end. Thus, the end of the steel-based hysteretic damper 10 on the side of the joint material 20 is in a state where one end is free and the other end is constrained to move in the out-of-plane direction of the frame 1. The buckling length l _K1 of the steel-based hysteretic damper 10 in this state is calculated as 2 × L based on Euler's buckling theory (where L represents the length of the steel-based hysteretic damper 10).

On the other hand, when the contact plate 40 is provided, even if the viscoelastic body 30b is deformed in the stacking direction of the viscoelastic body damper 30, the contact plate 40 abuts on the joint material 20, so that the joint material The deformation in the out-of-plane direction of 20 is suppressed. Thereby, the restraint state of the steel system hysteresis type damper 10 becomes a one end free other end restrained state in which the end portion on the joint material 20 side of the steel material history type damper 10 does not move in the out-of-plane direction of the frame 1. The buckling length l _K2 of the steel-based hysteretic damper 10 at this time is calculated as 0.7 × L based on Euler's buckling theory. From the above, by providing the contact plate 40, the buckling length of the steel-based hysteretic damper 10 can be shortened, and the buckling strength of the steel-based hysteretic damper 10 can be improved.

In addition, the contact plate 40 can be configured in an arbitrary structure as long as the deformation in the out-of-plane direction of the joint material 20 can be suppressed directly or indirectly. FIG. 6 is a front view showing an example of the contact plate 40 according to the modification, and FIG. 7 is a cross-sectional view taken along the line CC in FIG. In this modification, the joint material 20 and the contact plate 40 are provided with four long holes 43 penetrating in the out-of-plane direction of the frame 1 and through bolts 44 inserted into the long holes 43. A pair of contact plates 40 are connected to each other via through bolts 44. Here, clearances are provided along the horizontal direction between the long holes 43 and the through bolts 44, and the vibration of the joint material 20 in the horizontal direction is allowed. According to this structure, the deformation of the joint material 20 in the out-of-plane direction can be further strongly suppressed by the pair of contact plates 40 connected to each other.
8 is a front view showing an example of a contact plate 40 according to a modification, and FIG. 9 is a cross-sectional view taken along the line DD in FIG. In this modification, a substantially plate-like rib member 45 is provided on the backing plate 40. Specifically, this is a case where the lower flange width of the upper beam member 2 is wider than the arrangement interval of the contact plates 40. The rib member 45 is disposed at a substantially right angle with respect to the side surface of the contact plate 40, and is fixed to the upper beam member 2 and the side surface of the contact plate 40 by welding, bolts, or the like. According to this structure, deformation of the joint material 20 in the out-of-plane direction can be more firmly suppressed by the pair of contact plates 40 including the rib material 45.

(Effect of Embodiment 1)
As described above, according to the first embodiment, the deformation in the out-of-plane direction of the steel material hysteretic damper 10 can be constrained by restricting the deformation in the out-of-plane direction of the joint material 20 by the contact plate 40, and the steel material hysteretic type The buckling strength of the damper 10 can be improved.

  In addition, since the backing plate 40 is arranged outside the joint material 20, even if a construction error occurs between the upper beam member 2 and the joint material 20, the installation location and dimensions of the backing plate 40 can be adjusted. The construction error can be absorbed, and the backing plate 40 can be easily attached to the existing frame 1.

[Embodiment 2]
Next, a second embodiment will be described. In the second embodiment, a staff is provided in addition to a backing plate similar to that provided in the first embodiment. The configuration of the second embodiment is substantially the same as the configuration of the first embodiment unless otherwise specified, and the configuration substantially the same as the configuration of the first embodiment is the same as that used in the first embodiment. These symbols are attached as necessary, and the description thereof is omitted (the same applies to the third and fourth embodiments).

(Composition of a cane)
10 is a front view showing the structure of the vibration control frame according to the second embodiment, and FIG. 11 is a cross-sectional view taken along the line EE of FIG. The pair of wands 50 suppresses the out-of-plane deformation of the frame 1 of the joint material 20 by the axial force resistance, and is provided in a side surface V shape so as to reach the joint material 20 from the floor member 6. In contrast, it is fixed by welding or bolts. The pair of wands 50 are made of steel, and a contact plate 40 configured in the same manner as in the first embodiment except for a fixing structure is fixed to the tip portion thereof by welding or the like. The wand 50 is formed of H-shaped steel, but is not limited thereto, and may be formed of a steel material whose cross-sectional shape is a substantially square shape or a substantially circular shape. In addition, it is preferable that the fixing position of the cane 50 with respect to the contact plate 40 coincides with the center position of the deformation force in the out-of-plane direction of the joint material 20. In this case, the deformation force in the out-of-plane direction of the joint material 20 is efficiently Can be transmitted to the cane 50 well. Further, the number of wands 50 fixed to one sheeting plate 40 is not limited to one, and a plurality of wands 50 may be fixed.

(Function of the cane)
Next, the function of the wand 50 will be described in detail. In the vibration control frame of the second embodiment, when the joint material 20 comes into contact with the contact plate 40 against an out-of-plane vibration of the frame 1 due to an earthquake or a wind, the brace 50 supported by the floor member 6 By acting on the axial force, the cane 50 resists deformation in the out-of-plane direction of the joint material 20, so that deformation in the out-of-plane direction of the joint material 20 is suppressed.

(Effect of Embodiment 2)
As described above, according to the second embodiment, in addition to the effects substantially the same as those of the first embodiment, it is possible to resist the deformation of the joint material 20 by the axial force of the wand 50. The buckling strength of the damper 10 can be further improved.

[Embodiment 3]
Next, Embodiment 3 will be described. In the third embodiment, a linear slider is provided in place of the contact plate of the first embodiment.

(Configuration of linear slider)
12 is a front view showing the structure of the vibration control frame according to the third embodiment, FIG. 13 is a cross-sectional view taken along the line FF in FIG. 12, and FIG. 14 is an enlarged view of a main part of FIG. A linear slider 60 is disposed between the upper beam member 2 and the joint material 20. The linear slider 60 corresponds to the slider portion in the claims, and includes a fixed body 61, a guide rail 62, a plurality of rotors 63, and a movable body 64.

  The fixed body 61 is a plate-like member for fixing the guide rail 62, is extended in a rectangular parallelepiped shape along the member axial direction of the upper beam member 2, and is fixed to the upper beam member 2 by welding or the like. ing.

  The guide rail 62 guides the movable body 64 in the member axial direction of the upper beam member 2 and is fixed to the lower surface of the fixed body 61 by welding or the like. The length of the guide rail 62 in the member axial direction is arbitrary, for example, a length corresponding to the assumed interlayer deformation at the time of a large earthquake, or a length calculated from the limit shear strain of the steel-based hysteretic damper 10 Can do.

  The plurality of rotors 63 slide the movable body 64 in the member axis direction of the upper beam member 2. The rotor 63 is formed in a substantially spherical shape or a substantially cylindrical shape, and is provided on the side surface of the guide rail 62 facing the side surface of the movable body 64 so as to be rotatable by a rotation shaft (not shown).

  The movable body 64 forms a track that enables the joint material 20 to reciprocate along the member axial direction of the guide rail 62, and is configured in a rectangular parallelepiped shape and welded to the surface on the upper beam member 2 side of the joint material 20. It is fixed by etc. On the upper side surface of the movable body 64, a groove portion for slidably receiving the guide rail 62 and the plurality of rotors 63 is formed.

(Function of linear slider)
Next, the function of the linear slider 60 will be described in detail. When an in-plane vibration of the frame 1 due to an earthquake or a wind occurs, the movable body 64 moves along the guide rail 62 to allow deformation of the joint material 20 in the in-plane direction of the frame 1 and viscoelasticity. The vibration energy can be absorbed by the body damper 30 or the steel-based hysteretic damper 10. On the other hand, when the movable body 64 is fitted to the guide rail 62, deformation of the joint material 20 in the out-of-plane direction is suppressed.

(Effect of Embodiment 3)
As described above, according to the third embodiment, the out-of-plane deformation of the steel material hysteretic damper 10 can be constrained by restricting the deformation in the out-of-plane direction of the joint material 20 by the linear slider 60, and the steel-based hysteretic type is achieved. The buckling strength of the damper 10 can be improved.

  Further, since the linear slider 60 is provided between the upper beam member 2 and the joint material 20, it is possible to prevent the linear slider 60 from being exposed to the outside of the frame 1, and to effectively use the indoor space. Therefore, it is possible to improve the storage of the ceiling, to prevent the piping in the ceiling from being obstructed, or to further improve the design of the frame 1.

[Embodiment 4]
Next, a fourth embodiment will be described. In the fourth embodiment, a spacer is provided on the viscoelastic damper.

(Bearing configuration)
15 is a cross-sectional view taken along arrow AA of FIG. 2 according to the present embodiment. A plurality of bearings 71 are provided inside the viscoelastic damper 30. The bearing 71 suppresses deformation of the viscoelastic body 30 b in the stacking direction, and is disposed between the resistance plates 30 a at the end of the viscoelastic body damper 30. The bearing 71 is formed as a steel ball bearing or a roller bearing, for example, and is rotatably disposed in a recess formed in the resistance plate 30a. These bearings 71 are arranged at a position and shape in contact with the other resistance plate 30a adjacent to the resistance plate 30a, and the resistance plate 30a moves in the horizontal direction following the shear deformation of the viscoelastic body 30b. On the other hand, the resistance plate 30a is prevented from being deformed in the stacking direction of the viscoelastic body 30b.

  Next, a modification of the present embodiment will be described. 16 is a cross-sectional view taken along arrow AA of FIG. 2 according to a modification of the present embodiment. A rubber body 72 is provided inside the viscoelastic damper 30 in place of the bearing 71 described above. The rubber body 72 suppresses deformation in the stacking direction of the viscoelastic body 30b. The rubber body 72 is formed, for example, in a U-shaped longitudinal section, is fitted to the end of the viscoelastic body damper 30, and the resistance plate 30a It is arranged between each other and to the sides thereof. The portions arranged between the resistance plates 30a are made thinner than the gap between the viscoelastic bodies 30b so as not to hinder horizontal deformation of the viscoelastic bodies 30b, while the viscoelastic bodies 30b are arranged in the stacking direction. In the case of deformation, the thickness is set such that the deformation can be prevented from increasing by contacting the resistance plate 30a. The rubber body 72 is preferably harder than the viscoelastic damper 30 and, for example, natural rubber and high damping rubber larger than the static shear modulus of the viscoelastic body 30b can be used. Alternatively, a metal body may be used instead of the rubber body 72.

(Effect of Embodiment 4)
As described above, according to the fourth embodiment, in addition to the effects substantially the same as those of the first embodiment, the bearing 71 and the rubber body 72 can be attached when the viscoelastic damper 30 is assembled at the factory. Workability can be simplified. Further, since the bearing 71 and the rubber body 72 are provided inside the viscoelastic damper 30 and are not exposed to the outside, the bearing 71 and the rubber body 72 can contribute to the effective use of the indoor space and can further improve the design.

[Modification to each embodiment]
Although the embodiments of the present invention have been described above, the specific configuration and means of the present invention are arbitrarily modified and improved within the scope of the technical idea of each invention described in the claims. be able to. Hereinafter, such a modification will be described.

(About problems to be solved and effects of the invention)
First, the problems to be solved by the invention and the effects of the invention are not limited to the above-described contents, and the present invention solves the problems not described above or has the effects not described above. There are also cases where only some of the described problems are solved or only some of the described effects are achieved.

(Combination of each embodiment)
The configurations described in the embodiments can be combined with each other in any combination. For example, the contact plate 40 of the first embodiment and the bearing 71 and the rubber body 72 of the fourth embodiment may be applied to the same frame 1 at the same time.

(Large amplitude attenuation means and small amplitude attenuation means)
The large-amplitude damping means is not limited to the steel-based hysteretic damper 10, and may be a viscous damper or a friction damper. Even in the case of using the steel-based hysteretic damper 10, the arrangement method thereof is arbitrary, and for example, it may be arranged in an A shape or an X shape in place of the V shape. Further, the small-amplitude damping means is not limited to the viscoelastic damper 30 and may be a steel-based hysteretic damper 10, a viscous damper, or a friction damper.
As the steel-based hysteretic damper 10, a superplastic metal material (for example, zinc-aluminum alloy) whose material strength has high strain rate sensitivity is suitable as a damping means for small amplitude.
As the viscous damper as the damping means, an oil damper in which a viscous material such as oil is sealed in a cylinder is suitable. In particular, a viscous damper provided with a displacement amplification mechanism is suitable as a small amplitude attenuating means.

(About out-of-plane deformation suppression means)
In Embodiments 1 to 4, it has been described that the out-of-plane deformation suppressing means is arranged outside the joint material 20 or inside the viscoelastic damper 30. Good. For example, the pair of contact plates 40 of the first embodiment are extended from the left and right column members 4 and 5 of the frame 1 so as to reach the upper end portion of the steel-based hysteretic damper 10, and the steel-based hysteretic damper is formed by the contact plate 40. 10 may be sandwiched from the out-of-plane direction. In this case, a plurality of sets of contact plates 40 may be provided for one steel material hysteresis type damper 10.

  Alternatively, the out-of-plane deformation suppressing unit may be provided outside the viscoelastic damper 30. 17 is a cross-sectional view taken along the line AA in FIG. 2 according to a modification. Stoppers 73 are provided at both ends of the pin 30 d that penetrates the viscoelastic damper 30. The stopper 73 is made of steel, has an annular shape larger than the diameter of the pin hole 30c, and is formed thicker than the drop prevention pin 30e in FIG. Deformation of the viscoelastic damper 30 in the out-of-plane direction is suppressed with a rigidity higher than 30e.

  The vibration damping frame using the composite damper according to the present invention can be applied to a vibration damping frame for reducing the shaking of the building due to an earthquake or the like, and in particular, to effectively improve the buckling strength of the steel-based hysteretic damper. Useful.

It is a front view which shows the structure of the damping frame by the composite damper which concerns on Embodiment 1 of this invention. It is the figure which expanded the principal part of FIG. It is AA arrow sectional drawing of FIG. It is a BB arrow sectional view of Drawing 2. It is the figure which expanded the principal part of FIG. It is a front view which shows an example of the contact plate which concerns on the modification of FIG. It is CC sectional view taken on the line of FIG. It is a front view which shows an example of the contact plate which concerns on the modification of FIG. It is DD sectional view taken on the line of FIG. 6 is a front view showing a configuration of a vibration control frame by a composite damper according to Embodiment 2. FIG. It is EE arrow sectional drawing of FIG. FIG. 10 is a front view illustrating a configuration of a vibration control frame using a composite damper according to a third embodiment. It is FF arrow sectional drawing of FIG. It is the figure which expanded the principal part of FIG. It is AA arrow sectional drawing of FIG. 2 which concerns on Embodiment 4. FIG. It is AA arrow sectional drawing of FIG. 2 which concerns on the modification of Embodiment 4. FIG. It is AA arrow sectional drawing of FIG. 2 which concerns on the modification of Embodiment 4. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Frame 2 Upper beam member 3 Lower beam member 4 Left column member 5 Right column member 6 Floor member 10 Steel system hysteretic damper 11, 31 Connecting member 12 Steel system hysteretic damper main body 13 Constraining member 20 Joint material 21 Partner material 30 Viscosity Elastic body damper 30a Resistance plate 30b Viscoelastic body 30c Pin hole 30d Pin 30e Fall-off prevention pin 32 Bracket 40 Pad plate 41 Sliding material 42 Fitting member 43 Long hole 44 Through bolt 45 Rib material 50 Cane 60 Linear slider 61 Fixed body 62 Guide rail 63 Rotor 64 Movable body 71 Bearing 72 Rubber body 73 Stopper

Claims (7)

A pair of attenuating means for large amplitude arranged in a substantially V-shape in the plane of the building frame;
A small-amplitude attenuating means connected to the mutual connection of the pair of large-amplitude attenuating means;
Out-of-plane deformation suppressing means for suppressing deformation of the connecting portion in the out-of-plane direction of the frame;
A damping structure with a composite damper, characterized by comprising: The out-of-plane deformation suppressing means,
Provided outside the large amplitude attenuating means or outside the small amplitude attenuating means,
The vibration control frame with a composite damper according to claim 1. The out-of-plane deformation suppressing means is disposed so as to sandwich the connection portion from the out-of-plane direction of the frame, and includes a pair of contact portions that directly or indirectly contact the connection portion. ,
A vibration damping structure using a composite damper according to claim 2. The contact portion is a flat plate material supported by a beam or a column constituting the frame, and includes a flat plate material arranged substantially in parallel along the outer surface of the connection portion;
A vibration damping structure using a composite damper according to claim 3. A pair of wands fixed to the floor supported by the frame;
Providing the contact portion at the tip of the pair of wands;
A vibration damping structure using a composite damper according to claim 3. Provided in a beam or a column constituting the frame, and provided with a slider portion that enables the connection portion to reciprocate along a member axis direction of the beam or the column;
A vibration damping structure using a composite damper according to claim 2. A pair of attenuating means for large amplitude arranged in a substantially V-shape in the plane of the building frame;
A small-amplitude attenuating means connected to the mutual connection of the pair of large-amplitude attenuating means;
Out-of-plane deformation suppressing means for suppressing the large-amplitude attenuation means from being deformed in the out-of-plane direction of the frame is provided inside the small-amplitude attenuation means.
A damping structure with a composite damper characterized by

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