JP2014015709A - Vibration control device for building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vibration control device for building capable of making high damping rubber effectively function even when the deformation of a building is small, and improving vibration control efficiency, and developing vibration control effects on a much larger earthquake.SOLUTION: A base member 11 is disposed with a base side fixed to a horizontal material, and with a top side equipped with a supporting point, and rotary plates 12 and 13 are disposed with a predetermined interval at both front and rear sides of the base member 11 with the base member interposed, and connected so as to be rotatable to a supporting point 111 at the upper part of the base member 11, and arm members 14 and 15 are disposed with their base ends connected so as to be rotatable to both upper ends of the rotary plates 12 and 13, and with their top ends connected so as to be rotatable via fixed hardware 16 and 17 to a vertical material, and high damping rubber 18 and 19 is disposed so as to be interposed between the base member 11 and the rotary plates 12 and 13, and to be bonded to both front and rear faces of the base member 11 and the rear faces of the rotary plates 12 and 13.

Description

  The present invention relates to a vibration control technique for buildings (also referred to as “vibration control”, but is unified with “vibration control” in the present invention), and in particular, a wooden frame construction method, which is a conventional construction method, and a 2 × 4 construction method. The present invention relates to a vibration control device for a building that performs vibration control of a wooden building or the like by a frame wall construction method.

  Conventionally, various vibration control structures have been proposed in order to suppress shaking and displacement of a wooden building or the like due to strong winds or earthquakes. For example, the damping structure 70 shown in FIG. 14 disclosed in Patent Document 1 is a so-called diamond-type damping structure, and two damping structures 71 formed in a V shape are opposed to each other. It is formed so as to be turned upside down. The lower damping structure 71 includes a damping damper 72 that is fixed to a base 75 that is a cross member, a pair of arm members 73 that are rotatably fixed to the damping damper 72, and a pair of arm members 73. And a pair of fixed hardware 74 that is fixed to a pillar 76 that is a vertical member while being held rotatably. The upper vibration damping structure 71 also has the same configuration as described above.

  FIG. 15A shows a partially broken front view of the vibration damper 72 fixed to the base 75 in FIG. 11 and is shown in black for easy recognition of the viscoelastic body 83 (83A to 83D). FIG. 15B is a cross-sectional view taken along the line DD of FIG. 15A, and the broken portion of FIG. 15A is drawn as not broken.

  As shown in FIG. 15, the damping damper 72 has a first plate-like portion 81a, a second plate-like portion 81b, and a third plate-like portion 81c, and is fixed to the base 75 with a bolt (not shown). A pair of rotating plates 82 having a first slide portion 82a and a second slide portion 82b, a first viscoelastic body 83A fixed to the lower surface of the first plate-like portion 81a and the upper surface of the first slide portion 82a, respectively. The second viscoelastic body 83B fixed to the lower surface of the first slide portion 82a and the upper surface of the second plate-like portion 81b, respectively, and fixed to the lower surface of the second plate-like portion 81b and the upper surface of the second slide portion 82b, respectively. A third viscoelastic body 83C, and a fourth viscoelastic body 83D fixed to the lower surface of the second slide portion 82b and the upper surface of the third plate-like portion 81c.

  With the above configuration, when an external force such as an earthquake is applied to the building using the building damping device 70 in the arrow X direction, the base member is moved along with the movement of the base 75 moving in the external force input direction in FIGS. 81 also moves in the same direction. On the other hand, since the pair of rotating plates 82 are fixed to the base member 81 via the viscoelastic body 83, they do not move in the input direction of the external force, and the viscoelastic body 83 is elastically deformed while releasing heat. Absorbs external forces such as earthquakes and exhibits vibration control functions.

JP 2007-197939 A

  However, in the above conventional vibration damping device for buildings, the viscoelastic body 83 (83A to 83D) cannot deform the viscoelastic body 83 (83A to 83D) more than the movement of the end portion of the arm member. However, there is a problem that the viscoelastic body 83 does not sufficiently function unless the deformation of the end of the arm member, that is, the deformation of the building is increased. In particular, if the thickness of the viscoelastic body 83 (83A to 83D) can be secured, the deformation amount of the viscoelastic body 83 (83A to 83D) increases and the amount of vibration suppression increases, but the viscoelastic body 83 (83A to 83D) increases. 83D) has been developed in a horizontal direction parallel to the surface of the base 75, and is provided so as to be sandwiched between slide parts arranged in the vertical direction, so that the thickness thereof cannot be secured.

  Therefore, the present invention has been made in view of the problems in the conventional vibration damping device for buildings, and even if the deformation of the building is small, the high damping rubber is effectively functioned to improve the vibration damping efficiency. An object of the present invention is to provide a building vibration control device that can be improved and that can ensure the thickness of a high-damping rubber and increase its deformation amount to exhibit a vibration control effect against a larger earthquake.

In order to achieve the above object, a building vibration control device according to the present invention is a building vibration control device that is provided in a space surrounded by a cross member and a vertical member, and suppresses shaking and displacement of the cross member and the vertical member. A base member, a pair of rotating plates, a pair of arm members, a pair of fixed hardware, and a pair of high damping rubbers. Extending in the vertical direction, a fulcrum is provided on the tip side, and the pair of rotating plates are provided at predetermined intervals so as to sandwich the base member on both the front and rear sides of the base member, respectively. The pair of arm members are rotatably connected to the base member, and the base ends of the pair of arm members are rotatably connected to both ends spaced from each other by the same distance from the fulcrum of the pair of rotating plates, while the distal ends are lateral. The vertical members provided on both sides of the material are fixed via hardware. The pair of high-attenuation rubbers that are rotatably connected to each other are made of an elastic body or a viscoelastic body, and are sandwiched between the base member and the pair of rotation plates, and the back surfaces of the base member and the pair of rotation plates It is characterized by being adhered to.
Here, the cross-sectional shape of the base member is an H-shaped steel shape in which the back sides of two steel plates having a U-shaped cross-section are joined, and the front shape becomes a skirt shape as it approaches the cross member to be fixed. While spreading, it becomes narrower as it gets away from the cross member, and is a reverse funnel shape extending in parallel with the vertical member with a predetermined width before the fulcrum, and the cross member side flange portion connected to the cross member and the stud are fixed The length in the cross member direction of the cross member side flange portion is preferably longer than the length in the cross member direction of the pair of rotating plates and the high damping rubber.
Further, the high damping rubber is between the base member and the pair of rotating plates, and is more distant from the fulcrum of the base member than the distance between the fulcrum of the base member and the connecting points of the arm members on both sides of the pair of rotating plates. It is preferable that they are provided at spaced positions.
Further, the pair of rotating plates respectively includes a rubber bonding surface to which the high damping rubber is bonded, an arm member connecting surface to which the pair of arm members are rotatably connected, and between the rubber bonding surface and the arm member connecting surface. The rubber bonding surface and the arm member connecting surface are parallel along the base member, and the distance between the rubber bonding surface and the base member is the distance between the arm member connecting surface and the base member. More preferably, the intermediate surface is inclined so as to approach the base member as it goes from the rubber bonding surface to the arm member connecting surface.
In addition, on both front and rear sides of the intermediate member side flange portion of the base member, there are insertion holes that extend in a direction away from the cross member to be fixed, abut against the side surface of the base portion of the intermediate column, and fix the intermediate column with a nail, a screw, or the like. An upright mounting surface may be provided.
In addition, the cross member to which the present apparatus is fixed is provided with a recess so that the cross member side flange portion of the base member is fitted, and the cross member side flange portion of the base member is fitted into the recess to be fixed. Good.

  As described above, according to the building vibration control device of the present invention, even if the deformation of the building is small, the high damping rubber can function effectively.

It is a front view which shows an example of the use condition of the damping device for buildings concerning this invention. It is a perspective view of the vibration damping device for buildings of Embodiment 1. It is a front view of the vibration damping device for buildings It is a rear view of the vibration damping device for buildings It is a top view of the vibration damping device for buildings It is a bottom view of the vibration damping device for buildings It is a principal part expanded side view of the damping device for buildings. It is sectional drawing of the damping device for buildings cut | disconnected in the high attenuation | damping rubber | gum. It is a front view which shows the operation example of the vibration damping device for buildings. It is a front view which shows the other example of the use condition of the damping device for buildings concerning this invention. It is a front view which shows the other example of the use condition of the damping device for buildings concerning this invention. (A), (b) is the partial enlarged front view and partial enlarged side view of the vibration damping device for buildings of Embodiment 2, respectively. (A), (b) is the partial expansion front view and partial expansion side view which respectively show the use condition of the damping device for buildings of Embodiment 3. It is a general view which shows an example of the conventional damping device for buildings. (A), (b), respectively, The partially broken front view and DD sectional view of the conventional building damping device shown in FIG.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a vibration damping device for buildings according to the present invention will be described in detail with reference to the accompanying drawings.

Embodiment 1 FIG.
As shown in FIG. 1, the vibration damping device 1 for a building according to the present invention is provided in a space surrounded by a base 5 and an upper beam 8 which are horizontal members and columns 7 and 7 which are vertical members. It suppresses shaking and displacement of the base 5 and the upper beam 8, which are materials, and the pillar 7 which is a vertical material, and as shown in FIGS. 2 to 8, a base member 11 and a pair of rotating plates 12, 13 And a pair of arm members 14, 15, a pair of fixed hardware 16, 17, and a pair of high damping rubbers 18, 19. In FIG. 1, reference numeral 9 denotes a stud, which may be provided between the upper and lower building vibration control devices 1 and 1 as shown in FIG. 1, or may be omitted as shown in FIG.

  As shown in FIGS. 2 to 4, 8, and the like, the base member 11 is fixed to the base 5 or the upper beam 8 that is a cross member on the base side, and extends in a vertical direction from the base 5 or the upper beam 8 that is a cross member. The fulcrum 111 is provided on the tip side, and the cross-sectional shape thereof is an H-shaped steel shape in which the back sides of the two steel plates 11a and 11b having a U-shaped cross section are joined, as shown in FIG. The cross member side flange portions 11a1 and 11b1 connected to the base 5 and the upper beam 8, which are the cross members, and the intermediate column side flange portions 11a2 and 11b2 to which the intermediate columns 9 are fixed are provided.

  As shown in FIG. 8, the base member 11 spreads in a skirt shape as it approaches the fixed base material 5 as shown in FIG. 8, while the base member 11 becomes narrower as the distance from the base material 5 decreases. It is comprised by the reverse funnel shape extended in parallel with a vertical member with the predetermined width in the near side. Then, the length L1 of the transverse member side flange portions 11a1 and 11b1 in the longitudinal direction of the base 5 and the upper beam 8 which are transverse members, as shown in FIG. 8, is the upper side of the pair of rotating plates 12 and 13 in the same direction. The length L2 and the length L3 of the high damping rubbers 18 and 19 in the same direction, that is, the length L3 of the lower side of the pair of rotating plates 12 and 13 in the same direction are configured. More specifically, L1> L2> L3. Therefore, the building vibration control device 1 can be stably attached to the base 5, and even if the base 5, the pillar 7, etc. are shaken and operated due to an earthquake and the pair of high-damping rubbers 18 and 19 are deformed, Vibration can be controlled in a stable state.

  Further, as shown in FIG. 7 and the like, the pair of rotating plates 12 and 13 can rotate the rubber bonding surfaces 121 and 131 to which the high damping rubbers 18 and 19 are bonded and the pair of arm members 14 and 15, respectively. Arm member connection surfaces 122 and 132 to be connected, and intermediate surfaces 123 and 133 between the rubber bonding surfaces 121 and 131 and the arm member connection surfaces 122 and 132 are provided. The rubber bonding surfaces 121 and 131 and the arm member connection surfaces 122 and 132 are parallel to the web portion of the base member 11 as shown in FIG. The spacing between the rubber bonding surfaces 121 and 131 and the web portion of the base member 11 is greater than the spacing between the arm member connecting surfaces 122 and 132 and the web portion of the base member 11, and The intermediate surfaces 123 and 133 of the rotary plates 12 and 13 are configured to be inclined so as to approach the base member 11 toward the arm member connecting surfaces 122 and 132 from the rubber bonding surfaces 121 and 131.

  Therefore, the distance between the rubber bonding surfaces 121 and 131 and the base member 11 is larger than the distance between the arm member connecting surfaces 122 and 132 and the base member 11. Since each of the high-damping rubbers 18 and 19 sandwiched between the two can secure a sufficient thickness, the respective high-damping rubbers 18 are more than the movement of the end portions of the arm members 14 and 15 as compared with the above-described conventional technique. , 19 can be deformed. As a result, the amount of deformation of each of the high damping rubbers 18 and 19 is larger than that in the case of the above-described prior art, so that the amount of vibration suppression (vibration suppression range) is also large, and the vibration suppression effect against a larger earthquake. Can be demonstrated. In addition, when changing the damping amount (damping range) of each of the high damping rubbers 18 and 19, the inclination angle of the intermediate surfaces 123 and 133 of the pair of rotary plates 12 and 13 is changed to change the rubber bonding surface. Since the distance between 121 and 131 and the web portion of the base member 11 has only to be changed, there is also an advantage that the damping amount (damping range) of each of the high damping rubbers 18 and 19 can be set freely with a slight modification.

  The pair of arm members 14 and 15 are respectively provided at both ends of the pair of rotating plates 12 and 13 that are spaced apart from each other by the same distance from the fulcrum 111, and the base ends rotate at both ends of the rotating plates 12 and 13. It is possible to connect to the pillars 7 and 7 which are vertical members provided on both sides of the base 5 and the upper beam 8 which are connected to each other by pins etc. Is done.

  The pair of high-damping rubbers 18 and 19 are made of an elastic body or a viscoelastic body, and are sandwiched between the base member 11 and the rubber bonding surfaces 121 and 131 of the pair of rotating plates 12 and 13, respectively. It is bonded to both the front and back surfaces and the back surfaces of the pair of rotating plates 12 and 13.

  Here, the high damping rubbers 18 and 19 are between the base member 11 and the pair of rotating plates 12 and 13 as shown in FIG. 7 and the like, and as shown in FIG. The length H1 from 111 to the upper ends of the high damping rubbers 18 and 19 is the distance from the fulcrum 111 of the base member 11 to the connection points 141 and 151 between the arm members 14 and 15 on both sides of the pair of rotary plates 12 and 13. It is larger than L4. Here, the fulcrum 111 and the connecting points 141 and 151 are passed through a pin through a hole at the tip of a rod (rod material) having a wide head, as shown in FIGS. A bar material (rod material) or the like is configured such that it is attached to the rotary plates 12 and 13, the arm members 14 and 15, the base member 11 and the like so as to be prevented from coming off and rotatably. Accordingly, in the building vibration damping device 1, the building vibration damping device 1 can be easily constructed at the site by passing a pin through a hole at the tip of a rod (rod material) or the like, and also stored and transported. It is very convenient because it requires less space.

  Therefore, in this vibration damping device 1 for building, since H1 ≧ L4, the upper end portions of the high damping rubbers 18 and 19 are close to the fulcrum 111 of the base member 11, and the pair of rotating plates 12, Since the external force applied to the high damping rubbers 18 and 19 via 13 is reduced, the durability of the high damping rubbers 18 and 19 is improved and the high damping rubbers 18 and 19 are moved beyond the movement of the end portions of the arm members 14 and 15. Shear deformation is possible. As a result, even if the deformation of the building is small, the high damping rubbers 18 and 19 can be effectively functioned to improve the vibration damping efficiency, and the thickness of the high damping rubber can be secured to reduce the deformation amount. The building vibration damping device 1 can be provided which can be enlarged and can exert a vibration damping effect against a larger earthquake.

  Further, in this vibration damping device 1 for building, H1 ≧ L4, and the high-damping rubbers 18 and 19 are provided at positions separated from the fulcrum 111 of the base member 11 as shown in FIGS. Therefore, when an earthquake occurs and the base 5 and the pillars 7 and 7 are shaken or displaced, as shown in FIG. 9, the torsional deformation that occurs when the base member 11 is provided at a position close to the fulcrum 111. , And the ratio of shear deformation increases, so that the durability of the high-damping rubbers 18 and 19 is improved.

  In particular, in the high damping rubbers 18 and 19, the height H2 is approximately ½ of the lateral length L3 of the high damping rubbers 18 and 19, and H1 ≧ L4 is shown in FIGS. Thus, since the high damping rubbers 18 and 19 are provided at positions spaced from the fulcrum 111 of the base member 11, the shear deformation is larger than the torsional deformation, and the durability is improved. The rubbers 18 and 19 can be effectively functioned to improve the vibration damping efficiency. Note that L4 is almost 1/2 of L3, so H2≈L4. Further, in this vibration damping device 1 for buildings, as shown in FIG. 8, the surface area of the side surfaces of the high-damping rubbers 18, 19 indicated by hatching is sufficient even if it is 1/3 or less of the surface area of the side surfaces of the rotating plates 12, 13. Therefore, the amount of use of the high-damping rubbers 18 and 19 can be reduced, and the cost can be reduced.

  In the description of the first embodiment, as shown in FIG. 1, two buildings are used in a space surrounded by the base 5 and the upper beam 8 which are cross members and the columns 7 and 7 which are vertical members. In the present invention, the vibration damping device 1 is provided. However, the present invention is not limited to this, and one building vibration damping device 1 may be provided as shown in FIG. 10, and further, as shown in FIG. Of course, the building vibration damping device 1 may be rotated 90 degrees so as to be provided in a space surrounded by the base 5 and the upper beam 8 which are horizontal members and the columns 7 and 7 which are vertical members.

Embodiment 2. FIG.
In the building vibration damping device 1 ′ of the second embodiment, as shown in FIGS. 12A and 12B, the base member 11 rises from the front and rear end portions of the intermediate column side flange portions 11 a 2 and 11 b 2, and is on the cross member side. Insertion holes 11a3, 11b3 that extend in a direction away from the base 5 and the upper beam 8 that are the horizontal members to which the flange portions 11a1, 11b1 are fixed, abut against the side surface of the base portion of the stud and fix the stud with nails, screws, or the like. Standing mounting surfaces 11a4 and 11b4 having the following are provided. The configuration other than the upright mounting surfaces 11a4 and 11b4 is the same as that of the building vibration control device 1 of the first embodiment.

  Therefore, according to the building damping device 1 ′ of the second embodiment, the same effect as that of the building damping device 1 of the first embodiment can be obtained, and the insertion holes 11a3 and 11b3 of the upright mounting surfaces 11a4 and 11b4 can be provided. Utilizing this, it becomes possible to easily fix the stud 9 to the stud-side flange portions 11a2, 11b2.

Embodiment 3. FIG.
In the building vibration control devices 1 and 1 ′ of the first and second embodiments, the cross member side flange portions 11 a 1 and 11 b 1 of the base member 11 are used as the cross member without cutting the surfaces of the base 5 and the upper beam 8 that are cross members. The base 5 and the upper beam 8 are fixed with nails, screws, or the like. However, in the third embodiment, as shown in FIG. A recess 51 having a depth equal to or greater than the thickness of the material-side flange portions 11a1 and 11b1 is provided, and the transverse member-side flange portions 11a1 and 11b1 of the base member 11 are fitted into the recess 51 and then fixed with nails or screws. In addition, when attaching the building vibration control devices 1 and 1 ′ of the first and second embodiments to the upper beam 8, although not illustrated, similarly, a recess is provided on the surface of the upper beam 8.

  Therefore, according to the third embodiment, the same effects as those of the building vibration control devices 1 and 1 ′ of the first and second embodiments can be obtained, and the recesses 51 and the like are formed on the surfaces of the base 5 and the upper beam 8 which are cross members. Since the horizontal member side flange portions 11a1 and 11b1 of the base member 11 are fitted in the concave portion 51 and the like and fixed with nails, screws, or the like, the base 5 or the upper beam 8 which is a horizontal member due to an earthquake or the like is provided. Even if they deviate in the X direction, it is possible to reliably prevent the base members 11 of the building vibration control devices 1 and 1 'from deviating from the base 5 and the upper beam 8, which are cross members, and to further improve the vibration damping efficiency. In addition, it is possible to provide a vibration damping device for a building that can ensure the thickness of the high-damping rubber and increase its deformation amount, and can exert a vibration damping effect against a larger earthquake.

1,1 'Building vibration control device 11 Base member 111 Support point 11a1, 11b1 Cross member side flange portion 11a2, 11b2 Intermediary column side flange portion 11a4, 11b4 Standing mounting surface 12, 13 Rotating plate 121, 131 Rubber bonding surface 122, 132 Arm Member connection surface 123, 133 Intermediate surface 14, 15 Arm member 16, 17 Fixed hardware 18, 19 High damping rubber 5 Base (cross member)
51 Concave part 7 Column (vertical material)
8 Upper beam (cross member)
9 studs

Claims (6)

A vibration control device for a building that is provided in a space surrounded by a cross member and a vertical member, and suppresses shaking and displacement of the cross member and the vertical member,
A base member, a pair of rotating plates, a pair of arm members, a pair of fixed hardware, and a pair of high damping rubber,
The base member is fixed to the cross member on the base side, extends in the vertical direction from the cross member, and has a fulcrum on the tip side.
Each of the pair of rotating plates is provided at a predetermined interval so as to sandwich the base member on both the front and rear sides of the base member, and is rotatably connected to the base member at the upper fulcrum of the base member,
Each of the pair of arm members is rotatably connected to both ends spaced from each other by the same distance from the fulcrum of the pair of rotating plates, while the distal end is fixed to a vertical member provided on both sides of the cross member. It is connected rotatably through hardware,
The pair of high-attenuation rubbers are made of an elastic body or a viscoelastic body, and are sandwiched between the base member and the pair of rotating plates, respectively, and bonded to the front and back surfaces of the base member and the back surfaces of the pair of rotating plates. A vibration control device for buildings. In the building vibration damping device according to claim 1,
The base member is
The cross-sectional shape is an H-shaped steel shape in which the back sides of two steel plates having a U-shaped cross-section are joined together, and the front shape spreads in a skirt shape as it approaches the fixed cross member. It has a reverse funnel shape that narrows toward the fulcrum and extends in parallel with the longitudinal member with a predetermined width before the fulcrum, and has a transverse member side flange portion that is connected to the transverse member, and a stud column side flange portion to which the stud is fixed. And the length in the cross member direction of the cross member side flange part is longer than the length in the cross member direction of the pair of rotating plates and the high damping rubber. In the building damping device according to claim 2,
The high-damping rubber is between the base member and the pair of rotating plates, and is separated from the fulcrum of the base member than the distance between the fulcrum of the base member and the connecting points of the arm members on both sides of the pair of rotating plates. A vibration control device for buildings, which is provided at a position. In the building damping device according to claim 3,
Each of the pair of rotating plates includes a rubber bonding surface to which the high damping rubber is bonded, an arm member connecting surface to which the pair of arm members are rotatably connected, and an intermediate between the rubber bonding surface and the arm member connecting surface. The rubber bonding surface and the arm member connecting surface are parallel to each other along the base member, and the distance between the rubber bonding surface and the base member is greater than the distance between the arm member connecting surface and the base member. The building damping device is characterized in that the intermediate surface is inclined so as to approach the base member from the rubber bonding surface toward the arm member connecting surface. In the building vibration damping device according to claim 4,
Upright mounting on both the front and rear sides of the intermediate column side flange portion of the base member that has an insertion hole that extends in a direction away from the cross member to be fixed, contacts the side surface of the base portion of the intermediate column, and fixes the intermediate column with a nail or a screw. A vibration damping device for buildings, characterized in that a surface is provided. In the building vibration damping device according to claim 4,
The lateral member to which the apparatus is fixed is provided with a recess so that the lateral member side flange portion of the base member is fitted, and the transverse member side flange portion of the base member is fitted into the concave portion and fixed. Damping device for building.

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