JP6095017B2 - Method for reinforcing horizontal vibration control of traditional wooden buildings - Google Patents

Description

  The present invention relates to a wooden building, in particular, a wooden main hall with a traditional construction method such as a shrine and temple, and a building design method, a damper shape, and a mounting method thereof that improve seismic performance without impairing historical background and value as a cultural property. About.

  In Japan, timber has long been used as a structural member of buildings. In such wooden buildings, how to maintain the strength when assembling the timber is extremely important.

  Traditional wooden buildings such as ancient shrines and temples were purely made of wood. In recent years, wooden houses, etc., use metal hardware as a reinforcing member at the joint of wood.

  Patent Documents 1 to 5 are disclosed as reinforcing devices and vibration control devices for wooden houses and the like.

JP 2004-131962 A JP 2011-85005 A JP 2003-64902 A Japanese Patent Laid-Open No. 2008-19963 JP 2007-332743 A

  Wooden buildings that comply with the Building Standards Law have a structure that resists earthquakes and storms by securing a certain amount of load-bearing walls and ceiling surface rigidity.

  When building a new wooden main hall, it is necessary to design in accordance with the current laws and regulations. Therefore, in general, (1) load-bearing walls are provided inside and around the building, and (2) structural plywood on the ceiling. (3) The strength of the wooden building is improved by providing reinforcing hardware on the shaft assembly provided with a bearing wall.

  However, shrines and temples main halls constructed with traditional construction methods are difficult to secure the amount of walls and ceiling surface (hereinafter referred to as “horizontal construction surface”) defined in the Building Standards Act.

  As shown in FIG. 1, the main hall can only be equipped with the bearing wall 7 on the outer periphery of the building as shown in FIG. In addition, since the space between the bearing walls 7 becomes wide, the horizontal construction surface needs to have a very large rigidity, and it is difficult to reinforce only with a fired fire or a horizontal brace.

  Further, as shown in FIG. 2, the level of the main hall such as a shrine and temple built with a traditional construction method may be different, such as the ceiling 8b of the inner side and the ceiling 8a of the outer side. In such a case, the horizontal construction surface cannot be solidified by a method of installing a reinforcing material in the same plane such as structural plywood, and the above (2) cannot be satisfied.

  In addition, wooden buildings such as shrines and temples cannot be provided with reinforcing hardware in places that can be seen by the user, and it is difficult to satisfy (3). Furthermore, there are many cases in which a wall cannot be provided due to a demand in use. Furthermore, it is difficult to install a diagonal material (brace) that closes the opening.

  In addition, the timber beam surface of a wooden building by the traditional construction method differs in the level of the orthogonal beams because large-diameter timber is piled up and assembled in a well beam. That is, orthogonal beams are not located in the same plane. For this reason, it becomes difficult to install a fire strike, a horizontal brace, or the like for reinforcing the rigidity and proof stress necessary in the horizontal direction.

  In addition, when renovating the existing wooden main hall, in addition to the above, a reinforcement plan that takes into account the historical background, the value as a cultural property, and the design (the appearance does not change) is required.

  In any of the above Patent Documents 1 to 5, it is considered difficult to realize the above problem, that is, “improve the seismic performance without increasing the load-bearing wall of the wooden main hall”.

  As described above, it is an issue to improve seismic performance without adding load bearing walls in traditional wooden buildings.

  The present invention has been devised in view of the above-described conventional problems, and one aspect thereof is provided with a lower beam provided in a horizontal direction, and in a horizontal direction and in a direction orthogonal to the lower beam. An upper beam, and a horizontal structural surface vibration damping reinforcement method for a traditional wooden building in which the upper beams are arranged in a cross-beam shape, a lower fixed portion fixed to the lower beam, and an upper fixed portion fixed to the upper beam. A lower plate having one end fixed to the lower fixing portion, an upper plate having one end fixed to the upper fixing portion, and an elastic body interposed at a location where the lower plate and the upper plate overlap each other. The damper is fixed to the lower beam and the upper beam.

  Further, as another aspect, a horizontal structure of a traditional wooden building in which a lower beam provided in a horizontal direction and an upper beam provided in a horizontal direction and orthogonal to the lower beam are arranged in a cross-beam shape. A surface damping reinforcement method, comprising: a lower fixing portion fixed to the lower beam; an upper fixing portion fixed to the upper beam; a lower plate having one end fixed to the lower fixing portion; The upper plate, one end of which is fixed to the upper fixing portion, the plate that straddles the lower plate and the upper plate, the lower plate and the plate, and the upper plate and the plate overlap. A damper having an elastic body interposed at a place is fixed to the lower beam and the upper beam.

  Further, as another aspect, a horizontal structure of a traditional wooden building in which a lower beam provided in a horizontal direction and an upper beam provided in a horizontal direction and orthogonal to the lower beam are arranged in a cross-beam shape. A surface damping reinforcement method, comprising: a lower fixing portion fixed to the lower beam; an upper fixing portion fixed to the upper beam; one end side locked to the lower fixing portion; A damper having a damper main body locked to the upper fixing portion is fixed to the lower beam and the upper beam.

  As one aspect thereof, the lower fixing portion and the upper fixing portion are fixed by being sandwiched from both side surfaces of the lower beam and both side surfaces of the upper beam.

  Further, as one aspect thereof, the upper fixing portion is folded with a flat portion that contacts the side surface of the upper beam, a bent portion that is bent and extended from a lower end of the flat portion, and an upper end side of the flat portion. Two side plates having a bolt hole formed in a curved portion, a bottom plate in contact with the lower surface of the upper beam and having bolt holes formed at both ends thereof, and a flat portion of the one side plate. Bolt holes and bolt holes in the flat portion of the other side plate, bolt holes in the bent portion of one side plate and bolt holes in the lower surface plate, bolt holes in the bent portion of the other side plate and bolt holes in the lower surface plate, And a member provided between the bent portion of the side plate and the bottom plate, and having a hole through which the bolt is inserted.

  Further, as another aspect, the upper fixed portion includes a flat portion that is in contact with a side surface of the upper beam, a bent portion that is bent and extended from the lower end of the flat portion, and an upper end side of the flat portion. Two side plates having a bolt hole formed in a curved portion, a bottom plate in contact with the lower surface of the upper beam and having bolt holes formed at both ends thereof, and a flat portion of the one side plate. Bolt holes and bolt holes in the flat portion of the other side plate, bolt holes in the bent portion of one side plate and bolt holes in the lower surface plate, bolt holes in the bent portion of the other side plate and bolt holes in the lower surface plate, And the bolt holes inserted into the flat plate portions of the side plates are formed as vertically elongated holes.

  According to the present invention, it is possible to improve seismic performance in a traditional wooden building without adding load bearing walls.

The top view which shows the traditional wooden building in Embodiment 1. FIG. The side view which shows the traditional wooden building in Embodiment 1. FIG. Sectional drawing which shows the shed beam surface of the traditional wooden building in Embodiment 1. FIG. The figure which shows the damper in Embodiment 1. FIG. The figure which shows the damper in Embodiment 2. FIG. The figure which shows the damper in Embodiment 3. FIG. The figure which shows the damper in Embodiment 4. FIG. The time chart which shows the waveform used for the analysis.

  In the present invention, a damper is provided on one horizontal surface that is not visible to the user, and the seismic performance is improved without adding a bearing wall.

  Hereinafter, Embodiments 1 to 4 of the horizontal structural vibration damping reinforcement method for a traditional wooden building according to the present invention will be described in detail with reference to FIGS.

[Embodiment 1]
FIG. 1 is a plan view of a traditional wooden building according to the first embodiment, and FIG. 2 is a partial cross-sectional view of the traditional wooden building according to the first embodiment.

  As shown in FIG. 2, the traditional wooden building in Embodiment 1 has a foundation stone 1 on the ground, a vertical pillar 2 provided on the foundation stone 1, and a horizontal structure such as a through 3 and a lower beam 4 on the vertical pillar 2. Joining materials. Further, as shown in FIGS. 2 and 3, the upper beam 5 is joined perpendicularly to the lower beam 4. Further, as shown in FIG. 2, a roof 6 is provided above the lower beam 4 and the upper beam 5.

  Each part is joined on the basis of traditional construction methods such as penetrating and scallops, and is not a firm joining with attachment hardware such as a wooden house. Therefore, it is necessary to design in consideration of the rigidity caused by the penetration of wood during deformation. Also, hardware such as anchor bolts is not used as much as possible. There are various types of roofing materials for the roof 6, such as tiles, copper plates, and fences, but they are not limited. The column base portion of the first embodiment uses a cornerstone stand, but may have other configurations such as a base stand.

  As shown in FIG. 3, the lower beam 4 and the upper beam 5 which are orthogonal to each other on the back of the ceiling (the surface of the shed beam) are assembled in a cross-beam shape by overlapping large-diameter wood, and therefore have different levels. In the first embodiment, a fire-type damper 10 is fixed to the lower beam 4 and the upper beam 5 having different levels.

  Next, the damper 10 according to the first embodiment will be described with reference to FIG. As shown in FIG. 4, the damper 10 includes an upper fixing portion 9 a that holds and fixes the upper beam 5, a lower fixing portion 9 b that holds and fixes the lower beam 4, and one end side fixed to the upper fixing portion 9 a. An upper plate 16 whose side extends in a direction orthogonal to the upper beam 5, one end side fixed to the lower fixing portion 9 b, and the other end extended in a direction orthogonal to the lower beam 4 It has the side plate 17, and the elastic body (for example, viscoelastic body) 18 interposed in the location where the upper side plate 16 and the lower side plate 17 overlap.

  As shown in FIG. 4B, the upper fixing portion 9 a includes two side plates 11 and 12 and one lower surface plate 13. The lower fixing portion 9b includes two side plates 14 and 15 as shown in FIG.

  As shown in FIG. 4B, the side plates 11 and 12 are bent by extending from the flat portions 11 a and 12 a contacting the side surface of the upper beam 5 and the lower ends of the flat portions 11 a and 12 a. And portions 11b and 12b. As shown in FIGS. 4B and 4C, bolt holes 11c and 12c through which bolts are inserted are formed on the upper ends of the flat portions 11a and 12a. The bolt holes 11c and 12c are vertically long holes so that the height can be adjusted. Moreover, as shown to Fig.4 (a), the bolt holes 11d and 12d which penetrate a volt | bolt are also drilled also in bending part 11b, 12b.

  The lower surface plate 13 is formed with a flat portion that contacts the lower surface of the upper beam 5 and bolt holes 13a and 13b formed at both ends of the flat portion. The bolt holes 13a and 13b are formed at positions corresponding to the bolt holes 11d and 12d of the side plates 11 and 12, respectively.

  As shown in FIG. 4C, the side plates 14 and 15 are flat portions 14a and 15a that are in contact with the side surfaces of the lower beam 4, and folded from the lower ends of the flat portions 14a and 15a. And bend portions 14b and 15b. As shown in FIGS. 4B and 4C, bolt holes 14c and 15c through which bolts are inserted are formed in the lower ends of the flat portions 14a and 15a. Further, bolt holes 14d and 15d through which bolts are inserted are also formed in the bent portions 14b and 15b.

  The upper plate 16 is formed with a bolt hole at one end thereof for inserting a bolt at a position corresponding to the bolt hole 12d of the side plate 12 and the bolt hole 13b of the lower plate 13, and the other end is substantially the same as the lower surface of the upper beam 5. It is extended at a height. The lower plate 17 has a bolt hole 17a formed at a position corresponding to the bolt hole 15d of the side plate 15 on one end side, a bolt hole 17b formed at a position corresponding to the bolt hole 14d of the side plate 14 and the other end side thereof. It extends at substantially the same height as the upper surface of the lower beam 4. And as shown to Fig.4 (a), the front-end | tip of the extended upper side plate 16 and the lower side plate 17 overlaps. An elastic body 18 is interposed between the upper plate 16 and the lower plate 17.

  Next, a method for attaching the damper 10 to the lower beam 4 and the upper beam 5 will be described.

  Bolts are inserted into the bolt holes 11c of the side plate 11 and the bolt holes 12c of the side plate 12 and tightened with nuts, so that the upper beam 5 is formed on both side surfaces of the flat portion 11a of the side plate 11 and the flat portion 12a of the side plate 12. Hold from. Further, a bolt is inserted into the bolt hole 11 d of the side plate 11, the member 24, and the bolt hole 13 a of the lower surface plate 13, and tightened with a nut. Further, a bolt is inserted into the bolt hole 12d of the side plate 12, the bolt hole of the upper plate 16, the member 24, and the bolt hole 13b of the lower plate 13, and tightened with a nut.

  Further, by inserting a bolt into the bolt hole 14c of the side plate 14 and the bolt hole 15c of the side plate 15 and tightening with a nut, the lower beam is formed between the flat portion 14a of the side plate 14 and the flat portion 15a of the side plate 15. 4 is clamped from both sides. A bolt is inserted through the bolt hole 17a of the lower plate 17 and the bolt hole 15d of the side plate 15 and tightened with a nut. Bolts are inserted into the bolt holes 17b of the lower plate 17 and the bolt holes 14d of the side plate 14 and tightened with nuts.

  Thus, according to the first embodiment, the damper 10 can be attached to the lower beam 4 and the upper beam 5 having different levels. Since this damper 10 has an elastic body 18 interposed between the upper plate 16 and the lower plate 17, the elastic body 18 can absorb energy and improve the earthquake resistance of the traditional wooden building. be able to.

  In addition, according to the first embodiment, in order to improve the earthquake resistance, since the bearing wall is not added, it is possible to adopt the main hall format that has been erected since ancient times. Reinforcing in consideration of the value and design as

  Further, in the first embodiment, the damper 10 is attached to the lower beam 4 and the upper beam 5 on the shed beam surface. Since the horizontal structure located on the shed beam surface does not enter the eyes of the user, the aesthetic appearance is not impaired. In addition, the first embodiment can be applied to a new construction or an existing construction, and can exhibit the proof strength in accordance with the current laws and regulations.

  It can also be applied to wooden buildings with traditional construction methods with different ceiling levels between the inner side and the outer side, and it is possible to demonstrate the strength in accordance with the current laws and regulations.

  Moreover, since the damper 10 of this Embodiment 1 clamps and fixes the lower beam 4 and the upper beam 5, it becomes possible to suppress the damage of the existing timber.

  In addition, since the damper 10 of the first embodiment is formed in a small size and light weight, even a repair work that does not dismantle the building can be carried by one worker and installed in a wooden building.

  Further, since the member 24 is inserted between the side plate 11 and the lower plate 13 and between the side plate 12 and the lower plate 13, the height of the member 24 can be changed to change the height of the lower plate 13. The height between the bolts 11c and 12c of the side plates 11 and 12 inserted into the bolt holes can be adjusted. As a result, the side plates 11 and 12 can be applied to beams having different thicknesses without changing them.

  Similarly, by making the bolt holes 11c, 12c of the side plates 11, 12 into a long hole shape, the height between the bottom plate 13 and the bolts inserted into the bolt holes 11c, 12c of the side plates 11, 12 is increased. The thickness can be adjusted, and can be applied to beams having different thicknesses.

  Further, by providing the inclusion 23 between the bolt hole 11c of the side face plate 11 and the bolt hole 12c of the side face board 12 and the upper beam 5, the bolt and the nut are temporarily loosened so that both sides of the beam 5 can be removed. Even if the clamping force is weakened, the bolt is caught by the inclusion 23 and the position of the damper 10 can be maintained.

[Embodiment 2]
In the second embodiment, the configuration of the damper 10 of the first embodiment is changed. The configuration other than the damper 10 is the same as that of the first embodiment. FIG. 5 shows the damper 10 according to the second embodiment.

  In the damper 10 of the second embodiment, an upper fixing portion 9a and an upper plate 16 are provided for two adjacent upper beams 5, respectively, and the pair of upper plates 16 are extended in opposite directions. Further, one of the two adjacent lower beams 4 is provided with a lower fixing portion 9b. The side plates 11, 12, 14, 15 and the upper plate 16 of the second embodiment are formed wider in the width direction than in the first embodiment, but the others are the same as in the first embodiment.

  The damper 10 according to the second embodiment is provided with a lower plate 19 having one end fixed to the lower fixing portion 9b. Bolt holes 19 a and 19 b for inserting bolts are formed on one end side of the lower plate 19. Bolts are inserted into the bolt holes 19 a and 19 b of the lower plate 19 and the bolt holes 14 d and 15 d of the side plates 14 and 15 to fix the lower plate 19 together with the side plates 14 and 15 to the lower beam 4. The other end of the lower plate 19 is merely placed on the other lower beam 4 and does not have to be fixed.

  Then, the elastic bodies 18 are interposed at the locations where the lower plate 19 and the upper plate 16 overlap.

  As described above, according to the second embodiment, the damper 10 can be provided on the lower beam 4 and the upper beam 5 having different levels, and the seismic resistance of the traditional wooden building can be improved. In addition, the same effects as those of the first embodiment are obtained.

[Embodiment 3]
In the third embodiment, the configuration of the damper 10 of the first and second embodiments is changed. Except for the configuration of the damper 10, it is the same as in the first and second embodiments. FIG. 6 shows the damper 10 according to the third embodiment.

  The damper 10 of the third embodiment is provided with an upper fixing portion 9a and an upper plate 16 for two adjacent upper beams 5, respectively, and the pair of upper plates 16 extend in the facing direction. Further, a lower fixing portion 9b and a lower plate 17 are provided for two adjacent lower beams 4 respectively, and the pair of lower plates 17 extend in opposite directions. The side plates 11, 12, 14, 15, the lower plate 13, the upper plate 16, and the lower plate 17 of the third embodiment are formed wider in the width direction than in the first embodiment, but the others are the same as in the first embodiment. It is.

  The damper according to the third embodiment is constructed so as to extend over the lower plates 17 and 17 provided on the adjacent lower beams 4 and 4 and the upper plates 16 and 16 provided on the adjacent upper beams 5 and 5. It has a rectangular plate 20. Elastic bodies 18 are interposed at locations where the four outer edges of the plate 20 overlap the upper plates 16 and 16 and the lower plates 17 and 17, respectively.

  As described above, according to the third embodiment, the dampers 10 can be provided on the lower beam 4 and the upper beam 5 having different levels, and the seismic resistance of the traditional wooden building can be improved. In addition, the same effects as those of the first embodiment are obtained.

[Embodiment 4]
In the fourth embodiment, the configuration of the damper 10 of the first to third embodiments is changed. The configuration other than the damper 10 is the same as that of the first embodiment. FIG. 7 shows a damper 10 according to the fourth embodiment.

  In the damper 10 according to the fourth embodiment, the upper beam 5 is provided with an upper fixing portion 9 a, and the lower beam 4 is provided with a lower fixing portion 9 b and a lower plate 17.

  The bent portion 12b of the side surface plate 12 and the side surface plate 12 side of the lower surface plate 13 are extended from the first to third embodiments, and mounting pin insertion holes 12e through which the mounting pins are inserted into the extended portions. 13c is formed.

  Further, the bent portion 14b of the side plate 14 and the side plate 14 side of the lower plate 17 are extended from the first to third embodiments, and the mounting pin is inserted through the extended portion. Holes 14e and 17c are formed.

  Further, the damper 10 of the fourth embodiment has a damper main body 22. In the damper main body 22, elastic bodies 18 and 18 are interposed between three plates 22a, 22b, and 22c, between the plates 22a and 22b, and between the plates 22b and 22c. Of the three plates 22a, 22b and 22c, the plate 22b located in the middle is formed longer than the other plates 22a and 22c. At both ends of the plate 22b that do not overlap the plates 22a and 22b, mounting pin insertion holes through which the mounting pins are inserted are formed.

  Then, the mounting pin is inserted into the mounting pin insertion hole 12 e of the side plate 12, the mounting pin insertion hole of the damper body 22, and the mounting pin insertion hole 13 c of the lower surface plate 13, and the mounting pin insertion hole of the lower plate 17. The damper 10 is configured by inserting the mounting pins 21a and 21b into the mounting pin insertion hole of the damper body 22 and the mounting pin insertion hole of the side plate 14.

  Here, if a spherical bearing is provided in the mounting pin insertion hole of the damper main body 22, it can operate smoothly even if the height is adjusted, so that the damper efficiency is improved.

  As described above, according to the fourth embodiment, the dampers 10 can be provided on the lower beam 4 and the upper beam 5 having different levels, and the earthquake resistance of the traditional wooden building can be improved. In addition, the same effects as those of the first embodiment are obtained.

[Design procedure for wooden shrines and temples]
This section describes the design procedure and results for structural analysis of traditional wooden buildings.

The analysis of the traditional wooden building used for the analysis is based on the copper plate fence for the roof and the traditional frame construction for the frame. The installation position of the damper 10 is examined according to the following procedure.
1. For a traditional wooden building, an analytical model is created as a spring with rotational rigidity.
2. Vibration analysis is performed on the above analysis model, the horizontal plane (the back of the hut, the ceiling surface, the floor surface, etc.) that shakes the most is grasped, and the damper 10 is installed on the horizontal surface of the corresponding part. At this time, whether or not it can be installed locally will also be examined.
3. Vibration analysis is performed on a model in which the damper 10 is arranged and a model in which the damper 10 is not arranged, and the analysis results are compared before and after the damper 10 is installed to confirm that the effect is obtained.
If the effect is not obtained by 4.3, review the arrangement plan of the damper 10 and perform vibration analysis again.

  The analysis results for the actual building (wooden main hall) are shown below. In this analysis, the damper 10 is disposed on the ceiling of the shed. Analysis of the three simulated seismic waves shown in FIG. 8 revealed that the effect varies depending on the input waveform, but the response displacement has confirmed a reduction effect of about 10% at maximum. In addition, the effect of reducing the building shear force by about 20% at the maximum was confirmed.

  Although the present invention has been described in detail only for the specific examples described above, it is obvious to those skilled in the art that various changes and modifications are possible within the scope of the technical idea of the present invention. Such variations and modifications are naturally within the scope of the claims.

  The present invention is not limited to a wooden main hall, but can be applied to other wooden buildings. Moreover, although Embodiment 1-4 demonstrated what applied the viscoelastic damper using the viscoelastic body 18, you may use an oil damper, a viscous damper, and a friction damper besides a viscoelastic damper.

DESCRIPTION OF SYMBOLS 4 ... Lower side beam 5 ... Upper side beam 9a ... Upper side fixing | fixed part 9b ... Lower side fixing | fixed part 10 ... Damper 16 ... Upper side plate 17 ... Lower side plate 18 ... Elastic body

Claims (5)

This is a method of reinforcing the horizontal surface of a traditional wooden building in which horizontal beams are arranged in a horizontal pattern and upper beams arranged in a direction perpendicular to the lower beam. And
A lower fixing portion fixed to the lower beam;
An upper fixing part fixed to the upper beam;
A lower plate having one end fixed to the lower fixing portion;
An upper plate having one end fixed to the upper fixing part;
An elastic body interposed between the lower plate and the upper plate,
Fixing the damper having the lower beam and the upper beam ;
The lower fixing portion is
A flat portion of the two side plates, which has two side plates formed with a flat portion contacting the side surface of the lower beam and a bent portion extending from the upper end of the flat portion; Sandwiched from both sides of the lower beam by the portion and fixed, the lower plate is fixed to the bent portion of the lower fixed portion,
The upper fixing part is
The flat portion of the two side plates has two side plates formed with a flat portion that contacts the side surface of the upper beam and a bent portion that is bent and extended from the lower end of the flat portion. A method for reinforcing and suppressing the vibration of a horizontal structure in a traditional wooden building , wherein the upper plate is fixed by being sandwiched from both sides of the upper beam by the upper plate . This is a method of reinforcing the horizontal surface of a traditional wooden building in which horizontal beams are arranged in a horizontal pattern and upper beams arranged in a direction perpendicular to the lower beam. And
A lower fixing portion fixed to the lower beam;
An upper fixing part fixed to the upper beam;
A lower plate having one end fixed to the lower fixing portion;
An upper plate having one end fixed to the upper fixing part;
A plate that spans the lower plate and the upper plate;
The lower plate and the plate, and an elastic body interposed between the upper plate and the plate,
Fixing the damper having the lower beam and the upper beam ;
The lower fixing portion is
A flat portion of the two side plates, which has two side plates formed with a flat portion contacting the side surface of the lower beam and a bent portion extending from the upper end of the flat portion; Sandwiched from both sides of the lower beam by the portion and fixed, the lower plate is fixed to the bent portion of the lower fixed portion,
The upper fixing part is
The flat portion of the two side plates has two side plates formed with a flat portion that contacts the side surface of the upper beam and a bent portion that is bent and extended from the lower end of the flat portion. A method for reinforcing and suppressing vibration of a horizontal structure in a traditional wooden building, characterized in that the upper plate is fixed by being sandwiched from both side surfaces of the upper beam by the upper plate . This is a method of reinforcing the horizontal surface of a traditional wooden building in which horizontal beams are arranged in a horizontal pattern and upper beams arranged in a direction perpendicular to the lower beam. And
A lower fixing portion fixed to the lower beam;
An upper fixing part fixed to the upper beam;
A damper main body with one end side locked to the lower fixing portion and the other end side locked to the upper fixing portion;
Fixing the damper having the lower beam and the upper beam ;
The lower fixing portion is
A flat portion of the two side plates, which has two side plates formed with a flat portion contacting the side surface of the lower beam and a bent portion extending from the upper end of the flat portion; Sandwiched from both sides of the lower beam by the part and fixed, the damper is fixed to the bent part of the lower fixed part,
The upper fixing part is
The flat portion of the two side plates has two side plates formed with a flat portion that contacts the side surface of the upper beam and a bent portion that is bent and extended from the lower end of the flat portion. A method for reinforcing the vibration of a horizontal structure of a traditional wooden building, characterized in that the damper is fixed to the bent portion of the upper fixed portion by sandwiching and fixing from both sides of the upper beam . The upper fixing part is
2 having a flat portion that contacts the side surface of the upper beam, a bent portion that is bent from the lower end of the flat portion, and a bolt hole that is formed at the upper end side of the flat portion and the bent portion. With two side plates,
A lower plate in contact with the lower surface of the upper beam and having bolt holes formed on both ends thereof;
The bolt hole in the flat portion of the one side plate and the bolt hole in the flat portion of the other side plate, the bolt hole in the bent portion of the one side plate and the bolt hole in the bottom plate, and the bent portion of the other side plate Bolts respectively inserted into the bolt holes and the bolt holes on the bottom plate,
A member provided between the bent portion of the side plate and the bottom plate, and having a hole through which a bolt is inserted at the center;
The horizontal structural vibration damping reinforcement method for a traditional wooden building according to any one of claims 1 to 3 . The upper fixing part is
2 having a flat portion that contacts the side surface of the upper beam, a bent portion that is bent from the lower end of the flat portion, and a bolt hole that is formed at the upper end side of the flat portion and the bent portion. With two side plates,
A lower plate in contact with the lower surface of the upper beam and having bolt holes formed on both ends thereof;
The bolt hole in the flat portion of the one side plate and the bolt hole in the flat portion of the other side plate, the bolt hole in the bent portion of the one side plate and the bolt hole in the bottom plate, and the bent portion of the other side plate A bolt hole and a bolt inserted into the bolt hole on the bottom plate, respectively,
The method of reinforcing horizontal vibration control of a traditional wooden building according to any one of claims 1 to 3 , wherein the bolt hole in the flat portion of the side plate is formed in a vertically long hole.

Images