JP2007239416A - Vibration control member which is built in building - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vibration control member which can be applied to the existing building, which can effectively absorb shock, and which imposes no restrictions on the dimension of a wing wall or an arrangement position of an entrance door. <P>SOLUTION: The vibration control member 1 is used in the four corners of a rectangular frame, and is fixed to two construction materials which are orthogonal to each other. The vibration control member 1 is integrally constituted by a connection part 11 and attaching parts 12, 13, both of which are made of spring steel. The connection part 11 is bent in a nearly V form, and the attaching parts 12, 13 are integrally provided to one end side and the other end side of the connection part. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a vibration control member attached to four corners of a building frame that can reinforce a building and can effectively absorb a large vibration such as an earthquake.

  In Japan, which is also called an earthquake-prone country, large and small earthquake damage has occurred repeatedly. And in the 1995 Awaji-Hanshin Earthquake, etc., it was reported that there were many casualties due to the collapse of primary houses as well as secondary fires.

Therefore, research for minimizing damage caused by earthquakes has been carried out, and various proposals have been made regarding earthquake-resistant structures and damping structures in buildings (for example, Patent Document 1 and Patent Document 2). In such a proposal, the building is damped by attaching a damping member to a structural member of the building such as a beam or a column.
JP2001081880 JP 2003-227186 A

  However, since the structure of the damping member of Patent Document 1 is complicated, there is a problem that weight reduction cannot be expected and the cost is high. In addition, the vibration control effect is exerted in the case of minute vibration caused by traffic vibration, but there is a problem that the vibration cannot be effectively absorbed in the case of a large vibration such as an earthquake. On the other hand, in the damping member of Patent Document 2, when the viscoelastic material that absorbs vibration energy undergoes shear deformation, there is a problem that the vibration energy cannot be effectively absorbed during the next aftershock.

  Further, conventionally, for example, when it is desired to provide the entrance door DR in a building, the sleeve wall 30 of about 600 mm to 910 mm is necessary from the viewpoint of building strength, so that there is a problem that the degree of freedom in design is low. . Furthermore, there is a demand for a vibration control member that can be applied not only to new buildings but also to existing buildings.

  The present invention has been made in view of these problems, and can be applied to existing buildings, can effectively absorb vibrations, and the layout of sleeve wall dimensions, entrance doors, etc. The object is to provide a vibration control member that is not limited in position.

  In order to achieve the above object, an invention according to claim 1 is a vibration control member used at four corners of a rectangular frame and fixed to two building members orthogonal to each other, and has flexibility. The connection part which consists of the metal plate which has and was bent in the substantially V shape, and the attachment part provided in the one end side and the other end side of the said connection part are comprised integrally.

  The invention according to claim 2 is a vibration control member that is used at four corners of a rectangular frame and is fixed to two building members orthogonal to each other, and is a flexible member formed in a band shape with the same width. It is formed by bending a metal plate, with attachment parts formed at both ends, a central attachment part formed at the central part, and a connecting part that connects each of the attachment parts and the central attachment part as a whole. It is formed in a bent substantially U shape.

  The invention according to claim 3 is a vibration control member that is used at four corners of a rectangular frame and is fixed to two building members that are orthogonal to each other, and a pair of flexible members in which the tips of each other are superposed. A metal plate and an elastic material sandwiched between the overlapping portions of the metal plate, and the polymerized tip is fixed by a fastening tool with the elastic material sandwiched therebetween.

  The invention according to claim 4 is a vibration control member that is used at four corners of a rectangular frame and is fixed to two building members that are orthogonal to each other, the metal member wound in a coil shape, and the coil A contact member that is in contact with both sides in the axial direction of the metal-like metal material, and the contact member includes a contact plate on a distal end side, a rod portion continuous with the contact plate, and the rod portion. A continuous attachment portion is integrated and configured, and a proximal end side of the attachment portion is fixed to a fixture.

  According to the present invention described above, a vibration control member that can be applied to existing buildings, can absorb vibrations effectively, and has no restrictions on the dimensions of sleeve walls or the position of the entrance door or the like. realizable. Further, the vibration damping member of the present invention can be realized at low cost and light weight, and can also be applied to modification of an existing building.

  The present invention will be described below based on embodiments. FIG. 1 is a perspective view of a vibration control member 1 according to a first embodiment of the present invention. FIG. 2A is a schematic perspective view showing a state in which the pair of damping members 1 and 1 are fixed to the base 3 and the pillar 2, and FIG. 2B shows a front view thereof. FIG. 2C shows an overall image of the mounting state of the damping member 1 including the state where the damping member 1 is fixed to the beam 4 and the column 2.

  As shown in the figure, the vibration damping member 1 is disposed in an internal space 9 of a wall formed by a structural member, and is fixed to the column 2 and the beam 4 and is also fixed to the column 2 and the base 3 for use. In the illustrated example, the center distance W between the columns 2A and 2B facing each other is 455 mm, and the height H from the bottom surface of the base 3 to the top surface of the beam 4 is 2920 mm.

  As shown in FIG. 1, the damping member 1 is made of a spring steel plate and is connected to a connecting portion 11 bent in a substantially V shape, and a distal end side mounting portion 12 provided on one end side of the connecting portion 11. The base portion side mounting portion 13 provided on the other end side of the connecting portion 11 is integrally formed.

  The distal end side mounting portion 12 is formed in a rectangular plate shape and bulges to one side in the width direction of the connecting portion 11. In addition, two bolt holes 14 are continuously formed in the length direction at the center in the width direction of the distal end side mounting portion 12. The base end side attachment portion 13 is formed in a rectangular plate shape, and bulges in one direction in the width direction of the connecting portion 11 and in the same direction as the bulge direction of the distal end side attachment portion 12. In addition, two bolt holes 15, 15 are formed continuously in the width direction at the center in the length direction of the base end side mounting portion 13. The connecting portion 11 is bent at about 35 ° to 65 ° so that the base end side is in a horizontal state and is V-shaped slightly at the center end side. A bolt hole 16 is formed in the vicinity of the bent portion. Further, the connecting portion 11 is further bent so that the distal end side mounting portion 12 is in a vertical state and continues to the distal end side mounting portion 12.

  As shown in FIG. 2, a pair of vibration control members 1, 1 having the same shape are arranged in an internal space surrounded by the pillars 2 </ b> A, 2 </ b> B and the base 3 so as to face each other. Under the two pillars 2A and 2B, foundation packings 6 and 6 are provided between the base 3 and the foundation 5, and beams 4 are bridged over the top surfaces of the pillars 2A and 2B. Yes.

  In order to fix the damping member 1, first, the base end side attachment portion 13 of one of the damping members 1 is placed on the base 3 in the vicinity of the pillar 2 </ b> A, and the bolt hole 15 and the base from the base end side attachment portion 13. Insert a bolt into the 3 through hole. Then, the nut 7 is tightened on the lower side of the base 3 using the space 7 formed by the base packings 6 and 6. Similarly, with respect to the bolt hole 16 of the connecting portion 11, a bolt is inserted and a nut is tightened below the base 3. Thereby, the damping member 1 is fixed to the base 3.

  The same applies to the distal end side mounting portion 12 side, and a bolt is inserted into the bolt hole 14 and the through hole of the pillar 2A, and a nut is tightened from the opposite side. Thereby, the damping member 1 is fixed to the column 2A. By the above mounting operation, the pillar 2A and the base 3 are fixed by the one vibration control member 1.

  Since the vibration damping member 1 has the mounting portions 12 and 13 bulging to the one side in the width direction on both the distal end side and the proximal end side, the bolt is inserted through the center of the wood to firmly fix the vibration damping member 1. be able to. However, as shown in FIG. 3, the mounting portions 12 and 13 and the connecting portion 11 may be formed to have the same width without providing a bulging portion from the viewpoint of ease of manufacture (see FIG. 3).

  Next, the other damping member 1 is fixed to the pillar 2B and the base 3 in the same procedure so as to face the damping member 1 attached to the pillar 2A and the base 3. Then, the pillar 2A, the pillar 2B, and the base 3 are fixed by the pair of vibration control members 1 and 1. The seismic damping member 1 of the present embodiment can be used regardless of the horizontal distance W between the two pillars 2A and 2B facing each other because the horizontal portion 11a of the connecting portion 11 can be placed adjacent on the same plane. it can. In the illustrated example, the vibration control members 11 and 11 are arranged so that the inclined portion 11b of the connecting portion 11 intersects in an X shape when viewed from the front.

  Subsequently, as shown in FIG. 2 (c), the beam 4 and the columns 2A and 2B are fixed to the beam 4 and the columns 2A and 2B by fixing the pair of the vibration control members 1 and 1 to the beam 4 and the columns 2A and 2B. To do. As described above, the four damping members 1 are fixed to the rectangular frame formed by the columns 2A and 2B, the base 3 and the beam 4.

  The four damping members 1 fixed in this way can normally function as a brace that fixes the base 3 and the column 2 and the beam 4 and the column 2 to reinforce the strength of the building. . When an excessive external force due to an earthquake or the like is received, the vibration can be absorbed by the buffering action of the spring steel. That is, since the bearing wall can be realized by using the damping member 1 at the four corners of the rectangular frame of the wooden building, for example, when a large entrance door DR is to be provided in the building, the arrangement position is limited. In addition, a horizontal dimension of about 455 mm is sufficient for the sleeve wall 30.

  FIG. 4 is a perspective view of the vibration control member 20 according to the second embodiment. FIG. 5A is a schematic perspective view showing a state in which the vibration control member 20 is fixed to the base 3 and the pillar 2, and FIG. 5B is an enlarged front view thereof. FIG. 5C shows an overall image of the mounting state of the vibration control member 20 including the state where the vibration control member 20 is fixed to the beam 4 and the column 2. In the illustrated example, the center distance W between the pillars 2A and 2B is 455 mm, and the height H from the bottom surface of the base 3 to the top surface of the beam 4 is 2920 mm.

  This damping member 20 is formed by bending a spring steel plate material having the same width and formed in a strip shape. Specifically, the attachment portions 22A and 22B formed at both ends, the center attachment portion 23 formed at the center portion, and the connecting portions 21A and 21B connecting the attachment portions 22A and 22B and the center attachment portion 23, respectively. As a whole, it is formed in a substantially U-shaped bend. The mounting portions 22A, 22B and the central mounting portion 23 are formed in a rectangular shape, and two bolt holes 24A, 24B, 25 are formed in the center in the width direction. The connecting portions 21A and 21B are bent so as to rise to about 35 ° to 65 ° when the central mounting portion 23 is in a horizontal state. Further, the connecting portions 21A and 21B are further bent at the distal end side so that the mounting portions 22A and 22B are in a vertical state.

  As shown in FIG. 5, the vibration damping member 20 configured as described above is used by being disposed in the internal space 9 surrounded by the two pillars 2 </ b> A and 2 </ b> B and the base 3. 2, foundation packings 6 and 6 are provided between the base 3 and the foundation 5 below the two pillars 2A and 2B, and beams are provided on the top surfaces of the pillars 2A and 2B. 4 is bridged. The attachment method is the same as that of the vibration control member 1 of FIG. The vibration control member 20 also normally functions like a brace to reinforce the strength of the building and exhibits a buffering action against earthquakes and the like.

  By the way, in the case of the damping member 20 of FIG. 4, the bolt holes 24A and 24B for fixing to the pillar 2 are set at positions different from the bolt holes 14 of the damping member 1 of FIG. Therefore, it is possible to use the vibration control member 1 and the vibration control member 20 by crossing the single pillar 2, and the above-described reinforcement effect and vibration control effect can be exhibited in the entire building (FIG. 6). reference).

  FIG. 7 illustrates a vibration control member 30 according to the third embodiment. FIG. 7A is a front view showing a state in which the vibration control member 30 is attached to the pillar 2 and the base 3, and FIG. 7B is an enlarged plan view showing a central portion of the vibration control member 30. FIG. 8 shows a state in which four damping members 30 are attached to a rectangular frame composed of the base 3, the pillar 2, and the beam 4. In this embodiment, the center distance W from the pillar 2A to the pillar 2B is 910 mm, and the height H from the bottom surface of the base 3 to the top surface of the beam 4 is 2920 mm. In addition, a tube column 2C having the same dimensions as the columns 2A and 2B is provided between the columns 2A and 2B.

  As shown in FIG. 5, the vibration damping member 30 includes a pair of plate bodies 31, 31 on which the tip portions 31 </ b> A are superposed, an elastic member 32 sandwiched between the superposed portions of the plate bodies 31, and a base of the plate member. It is comprised with the elastic material 33 arrange | positioned at the edge part 31B.

  Each plate 31 is formed of a strip-shaped spring steel, elliptical long holes 34 and 34 are formed in the distal end portion 31A, and circular mounting holes 35 and 35 are formed in the proximal end portion 31B. As shown in FIG. 5B, the long hole 34 is formed to extend in the length direction of the plate body 31. The elastic materials 32 and 33 are typically rubber materials, in which a circular hole concentric with the long hole 34 and the attachment hole 35 is formed.

  The pair of plate members 31 and 31 are polymerized at their tip portions 31A and 31A with the elastic member 32 sandwiched therebetween, and are integrated by bolts BT and nuts NT in this superposed state.

  The damping member 30 configured as described above is used by being fixed to the pillar 2A and the base 3 as shown in FIG. Specifically, the base end portion 31 </ b> B of the plate body 31 is placed on the upper surface of the base 3 near the tube column 2 </ b> C, and the base end portion 31 </ b> B and the base 3 are fixed via the elastic material 33. Next, the base end portion 31 </ b> A of the plate body 31 is fixed to the column 2 </ b> A via the elasticity 32. Hereinafter, it is the same, and the rectangular frame composed of the pillars 2A, 2B, 2C, the beam 4, and the base 3 is fixed by the four damping members 30. The damping member 30 also functions like a brace and functions as a cushioning material. That is, when the building receives a large external force due to an earthquake or the like, each plate 31 is bent so as to absorb the external force, and the tip portions 31A and 31A of each plate 31 slide on the elastic member 32. Can suppress vibration.

  While the three embodiments of the present invention have been specifically described above, the specific contents do not particularly limit the present invention. For example, in the above embodiment, the vibration control members 1, 20 and 30 are used in a frame formed on a vertical surface. However, since the vibration control members of the present embodiment are all small and light, Can be used in a frame formed on a horizontal plane. Specifically, it is effective to use it for a rectangular frame formed by orthogonal beams. Furthermore, the damping member 1, 20, 30 of this invention can be used regardless of the kind of building. For example, you may use for the rectangular frame of not only a wooden building rectangular frame but also a reinforcing steel building.

  Further, the vibration control members having the above-described configurations are not necessarily fixed by bolts and nuts, and may be fixed by using a coach screw (lag screw). When using a coach screw, it is preferable to embed an epoxy resin adhesive or other adhesive in a preliminary hole formed in a pillar or the like, and fix the damping member by screwing the coach screw onto it. is there. The use of the coach screw is suitable when there is no space for sandwiching the nut between the foundation and the foundation. That is, the vibration control member of the present invention can be used for a new building or an existing building.

  Furthermore, in the first embodiment and the second embodiment, the vibration control member and the column are directly fixed with bolts and nuts, but as in the third embodiment, a rubber material is provided between the vibration control member and the column. The vibration control member and the column may be fixed by interposing. Furthermore, in the third embodiment, a rubber material is interposed between the vibration control member and the column, but the vibration control member and the column may be directly fixed by bolts and nuts.

  Further, in the third embodiment described above, the tip portions 31A and 31A of the pair of plate bodies are superposed to form one vibration damping member, but the vibration damping members 40A, 40B and 40B in FIGS. As in 40C, the central portion in the length direction of one leaf spring can be formed thick so as to be a vibration damping member. Both ends of the damping members 40A and 40B are bent in an arc shape, and both ends of the damping member 40C are bent in a substantially L shape.

  A shock-absorbing material 42 made of rubber or the like is provided at both ends of the vibration control members 40A and 40B, and a support shaft SF is inserted into the internal shock-absorbing material. Both ends of the support shaft SF are fixedly held by a fixture 41, and the fixture 41 is fixed to the column 2A and the beam 4 by a bolt BT and a nut NT. On the other hand, the vibration control member 40C has an L-shaped base end portion 400, and the base end portion 400 is fixed to the column 2A and the beam 4 by a bolt BT and a nut NT. As for the damping members 40A, 40B, and 40C configured in this way, since the central part of the plate made of spring steel is thick, it is possible to reinforce the strength of the building normally like a bracelet, It will have a buffering effect against earthquakes.

  Furthermore, you may employ | adopt the damping member 40D which incorporated the coil spring 43 like FIG. The vibration control member 40 </ b> D is configured such that a coil spring 43 and a contact member 46 that contacts both ends of the coil spring 43 are accommodated in a cylindrical housing 47. The abutting member 46 is configured by integrating a disc portion 46a on the distal end side, a rod portion 46b, and a columnar attachment portion 46c, and the proximal end side of the attachment portion 46c defines the distal end piece of the fixture 41. It is pinched. Then, the mounting portion 46c is attached to the fixing device 41 by a pin member P or a bolt and nut that passes through the fixing device 41 and the mounting portion 46c. Further, rubber cushioning materials 45 and 44 are disposed on the front surface side and the back surface side of the disc portion 46a.

  This vibration control member 40D is also attached to the corners of the beam 4 and the pillar 2A, and exhibits a vibration control effect in the event of an earthquake as well as a reinforcing effect of the building. As shown in FIG. 14, the three coil springs 43A, 43B, and 43C may be separately disposed at three locations, and the disk portions 46a may be disposed on both sides of the central coil spring 43A. Further, if a coil spring as shown in FIG. 15 is used, a housing becomes unnecessary.

  15 includes a coil spring 52 and two U-shaped bars 53 and 54 inserted into the coil spring 52. As illustrated, proximal ends 53A and 54A of U-shaped bars 53 and 54 are wound around and engaged with both ends 52A and 52A of the coil spring 52. Moreover, the front-end | tip parts 53B and 54B of the U-shaped stick | rod 53 and 54 are fixed to a fixing tool not shown.

It is a perspective view of the damping member concerning a 1st example. It is drawing which shows the attachment state of the damping member which concerns on a 1st Example. It is drawing which shows the modification of the damping member which concerns on a 1st Example. It is a perspective view of the damping member concerning a 2nd example. It is drawing which shows the attachment state of the damping member which concerns on a 2nd Example. It is drawing which shows the attachment state of the damping member of 1st Example, and the damping member of 2nd Example. It is drawing which shows the attachment state to the base and pillar of the damping member which concerns on a 3rd Example. It is drawing which shows the attachment state to the frame of the damping member which concerns on a 3rd Example. It is drawing which shows the structure of a building. It is drawing which shows the modification of the damping member which concerns on a 3rd Example. It is drawing which shows the modification of the damping member which concerns on a 3rd Example. It is drawing which shows the modification of the damping member which concerns on a 3rd Example. It is drawing which shows the damping member which concerns on 4th Example. It is drawing which shows the modification of the damping member which concerns on 4th Example. It is drawing which shows another modified example of the damping member which concerns on 4th Example.

Explanation of symbols

1, 20, 30 Damping member 11, 21A, 21B Connecting portion 12, 13, 22A, 22B Mounting portion 23 Central mounting portion 31 Metal plate 32 Elastic material BT, NT Fastening tool

Claims (4)

A vibration control member that is used at four corners of a rectangular frame and is fixed to two building members that are orthogonal to each other,
A damping member made of a flexible metal plate and integrally formed of a connecting portion bent in a substantially V shape and mounting portions provided on one end side and the other end side of the connecting portion. . A vibration control member that is used at four corners of a rectangular frame and is fixed to two building members that are orthogonal to each other,
A flexible metal plate formed in a band shape with the same width is formed by bending, mounting portions formed at both ends, a central mounting portion formed at the central portion, and each of the mounting portions and the central mounting portion. And a connecting part that connects the two, respectively, and a vibration control member that is formed in a substantially U-shaped shape as a whole. A vibration control member that is used at four corners of a rectangular frame and is fixed to two building members that are orthogonal to each other,
It has a pair of flexible metal plates in which the tip portions of each other are superposed, and an elastic material sandwiched between the superposed portions of the metal plates, and the superposed tip portions sandwich the elastic material. Damping member that is fixed in place with a fastener. A vibration control member that is used at four corners of a rectangular frame and is fixed to two building members that are orthogonal to each other,
A metal member wound in a coil shape, and an abutting member that abuts on both sides of the coiled metal material in the axial direction, the abutting member including a contact plate on a distal end side, and the abutting member A damping member in which a rod portion continuous to a plate and a mounting portion continuing to the rod portion are integrated, and a proximal end side of the mounting portion is fixed to a fixture.

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