JP2021095819A - Reinforcement structure of wooden building - Google Patents

Abstract

To provide a reinforcement structure of a wooden building, capable of exhibiting an effect of reinforcement members for reinforcing a structure plane along the vertical direction.SOLUTION: A reinforcement structure of a wooden building comprises a vertical reinforcement member 20 for reinforcing a structure plane along the vertical direction between wooden pillars 12 adjacent to each other, and a horizontal reinforcement member 80 for reinforcing a structure plane along the lateral direction, surrounded by wooden beams 14X connected to the pillar 12.SELECTED DRAWING: Figure 1

Description

The present invention relates to a reinforcing structure of a wooden building.

The following Patent Document 1 describes a load-bearing wall structure provided with a vibration damping damper device.

Japanese Unexamined Patent Publication No. 2018-62811

In the bearing wall structure of the building shown in Patent Document 1, a vibration damping damper is installed in the wall frame of the wooden building. In a wooden building, the rigidity of the floor surface is smaller than that of a reinforced concrete building. Therefore, the floor surface may be deformed during an earthquake. In this case, even if the wall frame is reinforced, it is difficult for the seismic force to act on the wall frame, and the vibration damping effect of the damping damper may not be effectively exhibited.

In view of the above facts, an object of the present invention is to provide a reinforcing structure of a wooden building capable of effectively exerting the effect of a reinforcing member for reinforcing a structural surface along the vertical direction.

The reinforcing structure of the wooden building of claim 1 is a vertical reinforcing member that reinforces a structural surface along the vertical direction sandwiched between adjacent wooden columns and a horizontal direction surrounded by wooden beams joined to the columns. It is equipped with a horizontal reinforcing member that reinforces the structural surface along the line.

In the reinforcing structure of the wooden building according to claim 1, the structural surface along the vertical direction sandwiched between the columns is reinforced by the vertical reinforcing member. Further, the structural surface along the lateral direction surrounded by the beams joined to the columns is reinforced by the horizontal reinforcing member. As a result, even if a horizontal force acts on the wooden building during an earthquake, the structural surface along the lateral direction is unlikely to be deformed out of the plane. As a result, seismic force is likely to act on the structural surface sandwiched between the columns along the vertical direction. Therefore, the effect of the vertical reinforcing member that reinforces the structural surface along the vertical direction can be effectively exhibited.

The reinforcing structure of the wooden building according to claim 2 is the reinforcing structure of the wooden building according to claim 1, wherein the horizontal reinforcing member is a structure along the lateral direction surrounded by beams joined above and below the pillar. Reinforce the surface.

In the reinforcing structure of the wooden building according to claim 2, the structural surface along the vertical direction above and below the structural surface reinforced by the vertical reinforcing member is reinforced by the horizontal reinforcing member. Therefore, the seismic force is more likely to act on the structural surface along the vertical direction as compared with the case where either one is not reinforced by the horizontal reinforcing member. Therefore, the effect of the vertical reinforcing member that reinforces the structural surface along the vertical direction can be more effectively exhibited.

The reinforcing structure of the wooden building according to claim 3 is the reinforcing structure of the wooden building according to claim 1 or 2, wherein the vertical reinforcing member is made of steel in which both ends are pin-joined to the columns adjacent to each other. The first horizontal member, the second horizontal member made of steel whose both ends are pin-joined to the adjacent columns below the first horizontal member, the first horizontal member and the second horizontal member. It is equipped with a vibration damping member attached to the frame material.

In the reinforcing structure of the wooden building according to claim 3, steel first horizontal members and second horizontal members are laid above and below the columns adjacent to each other. A vibration damping member is attached to the first horizontal member and the second horizontal member. As a result, when the structural surface sandwiched between the columns is deformed during an earthquake, the vibration damping member is deformed. At this time, the vibration damping member may be greatly deformed, and a large force may act on the first horizontal member and the second horizontal member. Even in such a case, since the first horizontal member and the second horizontal member are made of steel, they are not easily damaged. As a result, the vibration damping member can sufficiently exhibit the vibration damping performance.

Further, the first horizontal member and the second horizontal member are pin-joined to the columns. Therefore, the first horizontal member and the second horizontal member are easily deformed, and the deformation of the structure surface sandwiched between the columns is easily transmitted to the vibration damping member. As a result, the vibration damping performance of the vibration damping member can be efficiently brought out.

Further, since the first horizontal member and the second horizontal member are pin-joined to the column, the stress generated in the first horizontal member and the second horizontal member is not easily transmitted to the column. Therefore, damage to the pillars is suppressed. On the other hand, if the first horizontal member and the second horizontal member are "rigidly joined" to the column, the joint is likely to be damaged.

According to the present invention, it is possible to provide a reinforcing structure of a wooden building capable of effectively exerting the effect of a reinforcing member for reinforcing a structural surface along the vertical direction.

It is a perspective view which shows a part of the frame of the building to which the reinforcing structure of the wooden building which concerns on 1st and 2nd Embodiment of this invention is applied. (A) is an elevational view showing the state of the frame of the building before the reinforcing structure of the wooden building according to the first embodiment of the present invention is applied, and (B) shows the state of removing the penetration from the frame. It is an elevation view, and (C) is an elevation view showing a state in which a fixing member is fixed to a through hole formed by removing a through hole. (A) is an elevation view showing a reinforcing structure of a wooden building according to a first embodiment of the present invention, (B) is a sectional view taken along line BB in (A), and (C) is (A). It is a cross-sectional view taken along the line CC in. (A) is an elevational view which shows the modification of the fixing method of the fixing member in the reinforcing structure of the wooden building which concerns on 1st Embodiment of this invention, and (B) is the sectional view taken along line BB in (A). is there. (A) is a schematic view showing a reinforcing structure of a wooden building according to the first embodiment of the present invention, (B) is a schematic view showing a state in which a horizontal force acts on the building at the time of an earthquake, and (C) is a schematic view. It is a moment diagram. (A) is a schematic view showing a reinforcing structure of a wooden building according to a modified example in which a column and a first horizontal member and a second horizontal member are rigidly joined. It is a schematic diagram which shows the state in which a force is applied, and (C) is a moment diagram. (A) is a perspective view showing a state in which a horizontal force is applied to a building in a state where a horizontal structural surface reinforcing member is provided in the reinforcing structure of the wooden building according to the first and second embodiments of the present invention. B) It is a perspective view which shows the state which the horizontal force applied to the building in the comparative example which is not provided with the horizontal structural surface reinforcing member. It is an elevation view which shows the modification of the 1st horizontal member and the 2nd horizontal member in the reinforcing structure of the wooden building which concerns on 1st Embodiment of this invention. (A) is an elevation view showing a reinforcing structure of a wooden building according to a second embodiment of the present invention, and (B) is a perspective view showing a method of joining a vertical frame member and a horizontal frame member.

[First Embodiment]
Hereinafter, the reinforcing structure of the wooden building according to the first embodiment of the present invention will be described with reference to the drawings. The components shown by using the same reference numerals in each drawing mean that they are the same components. In addition, description of overlapping configurations and symbols in the drawings may be omitted. The present invention is not limited to the following embodiments, and can be carried out with appropriate modifications such as omitting the configuration or replacing it with a different configuration within the scope of the object of the present invention.

<Building>
FIG. 1 shows a part of the frame of the building 10. The building 10 is a wooden building to which the "reinforcing structure of a wooden building" according to the embodiment of the present invention is applied. The present invention can be applied to wooden buildings for various purposes such as houses and public facilities. It can also be applied to both "new" building reinforcement and "existing" building reinforcement.

In the present embodiment, the building 10 is a wooden structure according to an existing traditional construction method, and a vibration damping structure is applied in order to improve seismic resistance and storm resistance. In view of its historical value, it is preferable to reduce as much as possible the construction methods such as drilling and cutting that greatly damage columns and beams in the existing wooden construction by the traditional construction method.

The building 10 has a wooden frame formed by wooden columns 12 and wooden beams 14. The pillars 12 are arranged along the vertical direction (Z direction). A beam 14 is joined to the pillar 12. More specifically, at least one of the beam 14X along the X direction and the beam 14Y along the Y direction is joined to the column 12.

The X direction and the Y direction are orthogonal to each other and are along the horizontal direction (horizontal direction). Further, the beam 14 is a general term for the beam 14X and the beam 14Y. In the following description, the beam 14X and the beam 14Y will be referred to as a beam 14 unless it is necessary to distinguish them.

Further, a structure along the vertical direction (structure surface along the X and Z directions) sandwiched between adjacent columns 12 is referred to as a vertical structure surface 12H, and is a structure along the horizontal direction surrounded by adjacent beams 14. The surface (structure surface along the X direction and the Y direction) is referred to as a horizontal structure surface 14H.

The vertical structure surface 12H does not necessarily have to be along the vertical direction, and the degree of error that occurs when the column 12 is constructed may be inclined or twisted. Similarly, the horizontal structure surface 14H does not necessarily have to be along the horizontal plane, and the degree of error generated when the beam 14 is constructed may be inclined or twisted.

<Reinforcing member>
The vertical structure surface 12H is reinforced by the vertical reinforcing member 20. The horizontal structure surface 14H is reinforced by the horizontal reinforcing member 80. FIG. 1 is shaded with an example of a portion where the vertical reinforcing member 20 is arranged.

<Processing of pillars>
In order to reinforce the vertical structure surface 12H with the vertical reinforcing member 20, the column 12 is first processed. Specifically, the upper and lower piers 16 spanning the pillar 12 as shown in FIG. 2 (A) are removed as shown in FIG. 2 (B). The penetration 16 is arranged so as to penetrate the through hole 12A of the pillar 12. Therefore, after the penetration 16 is removed, the through hole 12A is exposed in the pillar 12.

Next, the fixing member 12B is inserted into each through hole 12A, and the fixing member 12B is fixed to the pillar 12. The fixing member 12B is made of a steel material, and its outer peripheral surface is sized to directly contact the inner peripheral surface of the through hole 12A. Alternatively, the outer peripheral surface of the fixing member 12B is sized to come into contact with the inner peripheral surface of the through hole 12A via a cushioning material or the like. Both ends of the fixing member 12B are arranged so as to project from the pillar 12. The fixing member 12B and the pillar 12 are positioned with each other by bolting the member 12C to the portion of the fixing member 12B protruding from the pillar 12, so that it is not necessary to arrange bolts or the like that are positioned with each other and are attached to the pillar for reinforcement.

The member 12C is arranged in the inside corner portion 12E formed by the upper surface (or lower surface) of the fixing member 12B and the side surface of the pillar 12, but the embodiment of the present invention is not limited to this. For example, as shown in FIGS. 4A and 4B, the member 12C may be arranged at the inside corner portion 12F formed by the side surface of the fixing member 12B and the side surface of the pillar 12.

As shown in FIG. 2C, in the fixing member 12B, an insertion hole 12BH for pin joining is formed at one end of the fixing member 12B protruding from the pillar 12. The fixing member 12B is fixed to the column 12 so that one end thereof (that is, the insertion hole 12BH) is located on the reinforcing structure surface (the structure surface on which the vertical reinforcing member 20 is arranged). In other words, the pair of fixing members 12B fixed to the pillars 12 adjacent to each other are arranged so that the ends of the insertion holes 12BH are opposed to each other.

<Vertical reinforcement member>
FIG. 3A shows the configuration of the vertical reinforcing member 20. The vertical reinforcing member 20 is a member that reinforces the vertical structural surface 12H along the vertical direction sandwiched between columns 12 adjacent to each other. The vertical reinforcing member 20 includes a first horizontal member 30, a second horizontal member 40, and a vibration damping member 50.

Further, as shown in FIG. 3B, the vertical reinforcing member 20 is arranged in the wall. Specifically, the vertical reinforcing member 20 is covered with a plate member 60. The plate members 60 are arranged between the columns 12 adjacent to each other, and the columns 12 are exposed (so-called "true wall" structure). The vertical reinforcing member 20 can also be arranged in a wall having a “large wall” structure in which the columns 12 are covered with the plate member 60.

(First horizontal material)
As shown in FIG. 3A, the first horizontal member 30 includes a main body portion 32, a joint portion 34, and a plate-shaped portion 36. The main body 32 is made of, for example, H-shaped steel, and extends along the X direction on the vertical structure surface 12H. Further, the web of the main body portion 32 is arranged along the Z direction.

The joint portion 34 is integrated with both ends of the main body portion 32, respectively. An insertion hole 34H is formed in the joint portion 34. The insertion hole 34H is arranged so as to communicate with the insertion hole 12BH (see FIG. 2C) of the fixing member 12B. Then, by inserting the steel rod as the rotation shaft into the insertion hole 34H and the insertion hole 12BH, the first horizontal member 30 is pin-joined to the fixing member 12B. That is, both ends (a pair of joints 34) of the first horizontal member 30 are pin-joined to columns 12 adjacent to each other.

The plate-shaped portion 36 is made of a steel plate, and the upper end portion is integrated with the main body portion 32. The plate-shaped portion 36 is attached to the vertical structure surface 12H along the X direction and downward in the Z direction. A vibration damping member 50 is attached to the lower end of the plate-shaped portion 36.

(Second horizontal material)
The second horizontal member 40 is arranged below the first horizontal member 30. The second horizontal member 40 includes a main body portion 42, a joint portion 44, and a plate-shaped portion 46. The configuration of the main body portion 42 and the joint portion 44 is the same as the configuration of the main body portion 32 and the joint portion 34 in the first horizontal member 30, and the description thereof will be omitted. Further, the insertion hole 44H in the joint portion 44 is the same as the configuration of the insertion hole 34H, and the description thereof will be omitted.

The plate-shaped portion 46 is made of a steel plate, and the lower end portion is welded to the upper flange of the main body portion 42. The plate-shaped portion 46 is attached to the vertical structure surface 12H along the X direction and upward in the Z direction. A vibration damping member 50 is attached to the upper end of the plate-shaped portion 46.

(Vibration damping member)
The vibration damping member 50 includes an upper plate 52, a lower plate 54, and a viscoelastic body 56. The upper plate 52 is arranged along the X direction and the Z direction on the vertical structure surface 12H, and is joined to the plate-shaped portion 36 of the first horizontal member 30. The joining method is not particularly limited, but in the present embodiment, splice plates and bolts are used for joining.

Two lower plates 54 are arranged so as to sandwich the upper plate 52. The two lower plates 54 are arranged along the X direction and the Z direction on the vertical structure surface 12H, respectively, and are joined to the plate-shaped portion 46 of the second horizontal member 40. The joining method is not particularly limited, but in the present embodiment, bolts are used for joining.

A spacer 58 is arranged between each of the two lower plates 54 and the plate-shaped portion 46. A gap is formed between the upper plate 52 and the two lower plates 54 by the spacer 58.

A plate-shaped viscoelastic body 56 is arranged in the gap between the upper plate 52 and the lower plate 54. Both sides of the viscoelastic body 56 are adhered to the upper plate 52 and the lower plate 54, respectively. Therefore, when the upper plate 52 and the lower plate 54 are relatively displaced in the plane along the X direction and the Z direction, the viscoelastic body 56 is sheared and deformed.

<Horizontal reinforcement member>
As shown in FIG. 1, the horizontal reinforcing member 80 includes, as an example, a flint beam 82 that reinforces a horizontal plane. The flint beam 82 reinforces the horizontal structure surface 14H surrounded by the beam 14X and the beam 14Y. Further, it is arranged inside the floor finishing material and the ceiling finishing material of the flint beam 82 building 10.

Specifically, the flint beams 82 are arranged at four corners of a rectangular horizontal structure surface 14H formed by two beams 14X and two beams 14Y adjacent to each other. At each corner, the flint beam 82 is arranged in a direction that intersects both the beam 14X and the beam 14Y. Further, both ends of the flint beam 82 are joined to the beam 14X and the beam 14Y, respectively.

The flint beam 82 is arranged on two horizontal structural surfaces 14H that are vertically adjacent to each other. The vertical structure surface 12H between the two horizontal structure surfaces 14H is reinforced by the vertical reinforcing member 20. In other words, the flint beam 82 reinforces the horizontal structure surface 14H surrounded by the respective beams 14X joined to the top and bottom of the column 12 (the column forming the vertical structure surface 12H reinforced by the vertical reinforcing member 20). There is.

The horizontal reinforcing member 80 arranged on the horizontal structure surface 14H is not limited to the flint beam 82. For example, a horizontal brace (not shown) may be arranged as the horizontal reinforcing member 80 on the horizontal structure surface 14H. Further, a face material such as structural plywood may be arranged as the horizontal reinforcing member 80.

<Action / effect>
In the reinforcing structure of the wooden building according to the present embodiment, as shown in FIG. 3A, the first horizontal member 30 and the second horizontal member 40 are bridged above and below the columns 12 adjacent to each other. .. A vibration damping member 50 is attached to the first horizontal member 30 and the second horizontal member 40. When the vertical structure surface 12H sandwiched between the columns 12 is deformed during an earthquake, the vibration damping member 50 is deformed. At this time, the vibration damping member 50 may be significantly deformed, and a large force may act on the first horizontal member 30 and the second horizontal member 40. Even in such a case, since the first horizontal member 30 and the second horizontal member 40 are made of steel, they are not easily damaged. As a result, the vibration damping member 50 can sufficiently exhibit the vibration damping performance.

Further, as shown in the schematic view of FIG. 5A, the first horizontal member 30 and the second horizontal member 40 are pin-joined (pin-joined portion) to the pillar 12 (fixing member 12B fixed to the pillar 12). Is indicated by a white circle). Therefore, as shown in FIG. 5B, the first horizontal member 30 and the second horizontal member 40 are easily deformed, and the deformation of the vertical structure surface 12H sandwiched between the columns 12 causes the vibration damping member 50 to be deformed. Easy to be transmitted. As a result, the vibration damping performance of the vibration damping member 50 can be efficiently brought out.

Further, since the first horizontal member 30 and the second horizontal member 40 are pin-joined to the column 12, the stress generated in the first horizontal member 30 and the second horizontal member 40 is difficult to be transmitted to the column. .. That is, as shown in the moment diagram of FIG. 5C, it is difficult for the moment to be transmitted between the first horizontal member 30, the second horizontal member 40, and the pillar 12. As a result, damage to the pillar is suppressed.

The schematic view of FIG. 6A shows the first horizontal member 300 and the second horizontal member 400. The first horizontal member 300 and the second horizontal member 400 are rigidly joined to the column 12 (the rigid joint portion is indicated by a black circle). Therefore, as shown in FIG. 6 (B), the first horizontal member 300 and the second horizontal member 400 are compared with the first horizontal member 30 and the second horizontal member 40 shown in FIG. 5 (B). Therefore, it is difficult to deform, and the deformation of the vertical structure surface sandwiched between the columns 12 is difficult to be transmitted to the vibration damping member 50. As a result, it is difficult to efficiently bring out the vibration damping performance of the vibration damping member 50.

Further, by rigidly joining the first horizontal member 300 and the second horizontal member 400 to the column 12, as shown in the moment diagram of FIG. 6C, the first horizontal member 300 and the second horizontal member 300 and the second horizontal member are rigidly joined. Moments are easily transmitted between the 400 and the pillar 12. This can easily damage the pillar 12.

In this way, the embodiment in which the first horizontal member 300, the second horizontal member 400, and the pillar 12 are rigidly joined is included in the embodiment of the present invention. Even if these are rigidly joined, the effect of the vertical reinforcing member 20 can be effectively exerted by the effect of the horizontal reinforcing member 80 described later.

Further, in the reinforcing structure of the wooden building according to the present embodiment, as shown in FIG. 3B, the vertical reinforcing member 20 (first horizontal member 30, second horizontal member 40 and vibration damping member 50, FIG. 3). (See (A)) is arranged in the wall (position sandwiched between the plate members 60). Therefore, the vertical reinforcing member 20 is difficult to see from the outside. Therefore, the building 10 can be reinforced without impairing the design of the building 10.

Further, in the reinforcing structure of the wooden building according to the present embodiment, as shown in FIG. 1, the structural surface (vertical structural surface 12H) sandwiched between the columns 12 in the vertical direction is reinforced by the vertical reinforcing member 20. Further, the structure surface (horizontal structure surface 14H) along the lateral direction surrounded by the beam 14X joined to the column 12 is reinforced by the horizontal reinforcing member 80 (flint beam 82).

As a result, as shown in FIG. 7A, even if a horizontal force P acts on the building 10 at the time of an earthquake, the horizontal structure surface 14H is unlikely to be deformed (deformation such as bending out of the plane and twisting). As a result, the seismic force is likely to act on the vertical structure surface 12H sandwiched between the columns 12. As a result, the effect of the vertical reinforcing member 20 can be easily exerted. In FIG. 7A, the vertical reinforcing member 20 on the vertical structural surface 12H is omitted in order to simplify the illustration.

On the other hand, the horizontal structure surface 140H according to the comparative example shown in FIG. 7B is not provided with the horizontal reinforcing member. Therefore, when the horizontal force P acts on the building 10 at the time of an earthquake, the horizontal structure surface 140H is more likely to be deformed out of the plane as compared with the horizontal structure surface 14H reinforced by the horizontal reinforcing member 80. As a result, it becomes difficult for the force to be transmitted to the vertical structure surface 12H sandwiched between the columns 12. In this case, it is difficult to effectively exert the effect of the vertical reinforcing member 20.

Further, in the reinforcing structure of the wooden building according to the present embodiment, as shown in FIG. 1, the horizontal structural surface 14H “upper and lower” of the vertical structural surface 12H reinforced by the vertical reinforcing member 20 is the horizontal reinforcing member 80 ( It is reinforced by a flint beam 82).

Therefore, the seismic force is more likely to act on the vertical structure surface 12H as compared with the case where either one of the horizontal structure surfaces 14H is not reinforced by the horizontal reinforcing member 80. Therefore, the effect of the vertical reinforcing member 20 for reinforcing the vertical structural surface 12H can be more effectively exhibited.

In the present embodiment, the first horizontal member 30 includes a main body portion 32, a joint portion 34, and a plate-shaped portion 36, but the embodiment of the present invention is not limited to this. For example, as in the first horizontal member 62 shown in FIG. 8, the main body portion 32, the joint portion 34, and the plate-shaped portion 36 of the first horizontal member 30 may be integrally formed. That is, it may be formed of a veneer.
By forming in this way, the configuration of the first horizontal member can be simplified. The thickness of the first horizontal member 62 is appropriately set according to the required strength. In addition, ribs can be appropriately reinforced as needed.

Similarly, the second horizontal member 40 can be replaced with the second horizontal member 64. Since the configuration of the second horizontal member 64 is the same as the configuration of the first horizontal member 62, the description thereof will be omitted.

Further, in the present embodiment, the horizontal structural surfaces 14H above and below the vertical structural surface 12H reinforced by the vertical reinforcing member 20 are reinforced by the horizontal reinforcing member 80, but the embodiment of the present invention is not limited to this. ..

For example, at least one of the "upper" horizontal structure surface 14H and the "lower" horizontal structure surface 14H of the vertical structure surface 12H reinforced by the vertical reinforcing member 20 may be reinforced by the horizontal reinforcing member 80. Even with this configuration, the vertical structure surface 12H is easily deformed, so that the effect of the vertical reinforcing member 20 can be easily exerted.

[Second Embodiment]
Hereinafter, the reinforcing structure of the wooden building according to the second embodiment of the present invention will be described with reference to the drawings. The differences from the first embodiment will be mainly described, and the description of the configurations and effects common to the first embodiment will be omitted.

In the first embodiment, as shown in FIGS. 2A to 2C, the penetration 16 is removed from the pillar 12, and the fixing member 12B is inserted into the through hole 12A formed after the removal. .. On the other hand, the second embodiment is an embodiment applied when there is no removable penetration.

In the reinforcing structure of the wooden building according to the second embodiment, the vertical frame member 12G is used instead of the fixing member 12B of the first embodiment as shown in FIG. 9A. The vertical frame member 12G is formed by using steel rods and is arranged along the pillar 12.

The vertical frame member 12G is fixed to the pillar 12 via a through bolt. Further, for example, a metal spacer S is arranged between the vertical frame member 12G and the pillar 12, and the vertical frame member 12G and the pillar 12 are not in direct contact with each other.

The member for fixing the vertical frame member 12G to the pillar 12 is not limited to the penetrating bolt, and a non-penetrating lug screw bolt may be used. Alternatively, the vertical frame member 12G may be fixed to the pillar 12 by wrapping a fiber sheet or the like around the vertical frame member 12G and the pillar 12.

As shown in FIG. 9B, an insertion hole 12GH for pin joining is formed at the upper and lower ends of the vertical frame member 12G. In the second embodiment, the vertical reinforcing member 70 (horizontal frame member 72A described later) is pin-fixed to the vertical frame member 12G fixed to the pillar 12.

As shown in FIG. 9A, the vertical reinforcing member 70 is a member that reinforces the vertical structural surface 12H along the vertical direction sandwiched between columns 12 adjacent to each other. The vertical reinforcing member 70 includes a first horizontal member 72, a second horizontal member 74, and a vibration damping member 76.

The first horizontal member 72 includes a horizontal frame member 72A and a plate-shaped portion 72B. Like the vertical frame member 12G, the horizontal frame member 72A is formed by using a square steel pipe, a channel material, an H-shaped steel, or the like, and is arranged along the beam 14.

The horizontal frame member 72A and the beam 14 are arranged apart from each other. The separation distance between the horizontal frame member 72A and the beam 14 is not particularly limited. Further, a plate material or the like covering the vertical reinforcing member 70 may be interposed between the horizontal frame member 72A and the beam 14.

As shown in FIG. 9B, insertion holes 72GH for pin joining are formed at both ends of the horizontal frame member 72A (left and right ends, only one end is shown in FIG. 9B). ing. The insertion hole 72GH is arranged so as to communicate with the insertion hole 12GH (insertion hole 12GH at the upper end portion) of the vertical frame member 12G.

The vertical frame member 12G and the horizontal frame member 72A have the same thickness, and a notch having a thickness of half of the thickness is formed in the central portion of the upper and lower ends of the vertical frame member 12G. On the other hand, protrusions having a thickness half of the thickness are formed at the central portions of both ends of the horizontal frame member 72A. When assembling the vertical frame member 12G and the horizontal frame member 72A, these notches and the protrusions are engaged with each other.

Then, by inserting the steel rod into the insertion hole 72GH and the insertion hole 12GH, the first horizontal member 72 shown in FIG. 9A is pin-joined to the vertical frame member 12G. That is, both ends of the first horizontal member 72 are pin-joined to the columns 12 adjacent to each other.

The configuration of the plate-shaped portion 72B is the same as that of the plate-shaped portion 36 in the first horizontal member 30 of the first embodiment, and the description thereof will be omitted.

The second horizontal member 74 is installed below the first horizontal member 72 and is pin-joined to the lower end of the vertical frame member 12G. The second horizontal member 74 includes a horizontal frame member 74A and a plate-shaped portion 74B. The configuration of the horizontal frame member 74A and the plate-shaped portion 74B is the same as that of the horizontal frame member 72A and the plate-shaped portion 72B in the first horizontal member 72, and the description thereof will be omitted.

The vibration damping member 76 includes an upper plate 76A, a lower plate 76B, and a viscoelastic body 76C. The configuration of the upper plate 76A, the lower plate 76B, and the viscoelastic body 76C is the configuration of the upper plate 52, the lower plate 54, and the viscoelastic body 56 in the vibration damping member 50 of the first embodiment (FIGS. 3A and 3C). The same applies to (see), and detailed description is omitted.

Two viscoelastic bodies 56 in the vibration damping member 50 are provided along the in-plane direction of the vertical structure surface 12H, but the viscoelastic bodies 76C in the vibration damping member 76 are provided in the in-plane direction of the vertical structure surface 12H. Only one is provided along the line. As described above, the number of viscoelastic bodies (in other words, the area along the in-plane direction of the vertical structure surface 12H) is not particularly limited.

As described above, in the reinforcing structure of the wooden building according to the second embodiment, the vertical frame member 12G fixed to the pillar 12 and the horizontal frame members 72A and 74A forming the vertical reinforcing member 70 are adjacent to each other. A rectangular frame is formed between the matching columns 12. Then, the vertical frame member 12G and the horizontal frame member 72A are pin-joined, and the vertical frame member 12G and the horizontal frame member 74A are pin-joined.

With this configuration, the reinforcing structure of the wooden building according to the second embodiment can obtain the same effect as the reinforcing structure of the wooden building according to the first embodiment. Further, since the horizontal frame member 74A can be arranged apart from the beam 14, the arrangement position of the vertical reinforcing member 70 can be freely selected. Therefore, it is highly versatile.

The vertical reinforcing member 70 according to the second embodiment can be used in combination with the horizontal reinforcing member 80 described in the first embodiment. As described above, the present invention can be implemented in various aspects.

12 Column 14X Beam 20 Vertical reinforcement member 30 First horizontal member 40 Second horizontal member 50 Vibration damping member 80 Horizontal reinforcement member 82 Flint beam (horizontal reinforcement member)

Claims (3)

A vertical reinforcing member that reinforces the structural surface along the vertical direction sandwiched between adjacent wooden columns,
A horizontal reinforcing member that reinforces the structural surface along the lateral direction surrounded by wooden beams joined to the columns.
Reinforcement structure of a wooden building equipped with. The reinforcing structure for a wooden building according to claim 1, wherein the horizontal reinforcing member reinforces a structural surface along the lateral direction surrounded by beams joined above and below the pillar. The vertical reinforcing member is
A steel first horizontal member whose ends are pin-joined to the columns adjacent to each other,
Below the first horizontal member, a steel second horizontal member having both ends pin-joined to the adjacent columns.
The first horizontal member and the vibration damping member attached to the second horizontal member,
The reinforcing structure of the wooden building according to claim 1 or 2, comprising the above.

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