JP6998756B2 - Reinforcement structure and reinforcement method for wooden buildings - Google Patents

Description

The present invention relates to a reinforcing structure and a reinforcing method for providing seismic retrofitting and damping reinforcement to an existing wooden building.

In recent years, awareness of disaster prevention has increased with the occurrence of successive earthquakes, and the number of cases where wooden buildings have improved earthquake resistance and vibration control is increasing. Patent Document 1 describes a lower beam fixed to the upper surface of a concrete base, a pair of columns extending above the lower beam, an upper beam erected at the upper end of the columns, and an upper beam fixed to the lower surface of the upper beam. A hydraulic damper connected between the transmission member, the plate material for height adjustment fixed to the upper surface of the lower beam, the lower transmission member fixed to the upper end of the plate material, and the upper transmission member and the lower transmission member. The invention of the vibration damping device incorporated in the wall is disclosed.
However, when performing reinforcement work to give earthquake resistance and vibration control to existing wooden buildings, the walls, ceilings, wall materials and ceiling materials that make up the floor, floor materials are peeled off, columns, beams, foundations, etc. Since it is necessary to expose the frame of the building and the walls, ceiling, and floor will be re-covered after the reinforcement work is completed, there is a problem that the construction cost is high and the construction period is long.
In view of this problem, Patent Document 2 describes the studs between the left and right columns, the upper support material erected between the columns below the ceiling plate, and the columns and studs above the floor plate. Includes a lower support material erected between and, a pillar reinforcing material fixed along the pillar, a flat plate attached in the space surrounded by the upper support material, studs, the pillar reinforcing material, and the lower support material. The invention of a reinforcing structure that enables a seismic control device to be mounted in a frame of a building without peeling off the ceiling or floor by configuring a seismic control device composed of a seismic control member is disclosed.
Further, in Patent Document 3, an upper bracket is erected between the left and right pillars below the ceiling height, and a lower bracket is erected above the floor surface via a fixing plate along the pillars. The invention of a reinforcing structure incorporating a vibration control device that supports a hydraulic damper via an upper transmission member and a lower transmission member is disclosed between the upper bracket and the lower bracket.

Japanese Patent No. 5153440 Japanese Unexamined Patent Publication No. 2014-237946 Japanese Patent No. 4041743

In the reinforcing structure of Patent Documents 2 and 3, a column reinforcing material or a fixing plate is provided on the side surface of a pair of columns, and an upper support material or an upper bracket is erected inside the column reinforcing material or the upper bracket. Since the structure is such that the transmission member is fixed, it takes time and effort to attach the column reinforcing material and the fixing plate to the column, which leads to an increase in man-hours. In addition, since the upper support material and the upper bracket are fixed only to the column via the column reinforcing material, etc., the bending deformation of the column when a displacement is input to the beam cannot be suppressed, and the column may bend and break. There is a risk that displacement cannot be efficiently input to vibration control members such as dampers.

Therefore, the present invention is a wooden building that can be constructed by reducing the number of man-hours without peeling off the ceiling or floor, and can also suppress bending deformation of columns to secure necessary seismic control and seismic resistance. The purpose is to provide a reinforcing structure and a reinforcing method.

In order to achieve the above object, the invention according to claim 1 has a pair of pillars, an upper horizontal member horizontally arranged on the upper side of the pillars, and horizontally arranged on the lower side of the pillars. In a wooden building including a lower horizontal member, a ceiling material located below the upper horizontal member, and a floor material located above the lower horizontal member, columns, upper horizontal members, and lower horizontal members are used. It is a structure that reinforces the frame composed of materials.
At least one upper reinforcing material connected to the lower surface of the upper horizontal member and the inner side surface of the pair of columns in the frame, and the upper surface installed between the pair of columns in contact with the lower end of the upper reinforcing material. The upper support material and the lower support material are in contact with the support material, the lower support material arranged between the pair of columns above the lower horizontal member, and the upper support material and the lower support material, respectively. Containing the main reinforcing body, which is disposed between the materials ,
The upper reinforcing material consists of a linear main body portion and a mounting portion that is bent diagonally from both ends in the longitudinal direction of the main body portion toward the same surface side of the main body portion, and includes the lower surface of the upper horizontal member and the inner surface of the column. The mounting parts are connected to each other and diagonally arranged between the upper horizontal member and the pillar.
The main reinforcing body is characterized by being a seismic damping damper erected in a brace shape between the upper support material and the lower support material .
The invention according to claim 2 is characterized in that, in the configuration of claim 1 , a pair of upper reinforcing members is provided symmetrically in a front view of the frame.
In order to achieve the above object, the invention according to claim 3 has a pair of pillars, an upper horizontal member horizontally arranged on the upper side of the pillars, and horizontally arranged on the lower side of the pillars. In a wooden building including a lower horizontal member, a ceiling material located below the upper horizontal member, and a floor material located above the lower horizontal member, columns, upper horizontal members, and lower horizontal members are used. It is a structure that reinforces the frame composed of materials.
At least one upper reinforcing material connected to the lower surface of the upper horizontal member and the inner side surface of the pair of columns in the frame, respectively.
The upper support material erected between a pair of pillars in contact with the lower end of the upper reinforcement material,
The lower support material arranged between the pair of pillars above the lower horizontal lumber,
It includes a main reinforcing body disposed between the upper support material and the lower support material in a state of being in contact with the upper support material and the lower support material, respectively.
The upper reinforcing material is an elastic member whose both ends are connected to the lower surface of the upper horizontal member and the inner side surface of the column by using pins, and the dimensions in the longitudinal direction can be adjusted.
The main reinforcing body is characterized by being a seismic damping damper erected in a brace shape between the upper support material and the lower support material .
In order to achieve the above object, the invention according to claim 4 has a pair of pillars, an upper horizontal member horizontally arranged on the upper side of the pillars, and horizontally arranged on the lower side of the pillars. In a wooden building including a lower horizontal member, a ceiling material located below the upper horizontal member, and a floor material located above the lower horizontal member, columns, upper horizontal members, and lower horizontal members are used. It is a structure that reinforces the frame composed of materials.
At least one upper reinforcing material connected to the lower surface of the upper horizontal member and the inner side surface of the pair of columns in the frame, respectively.
The upper support material erected between a pair of pillars in contact with the lower end of the upper reinforcement material,
The lower support material arranged between the pair of pillars above the lower horizontal lumber,
It includes a main reinforcing body disposed between the upper support material and the lower support material in a state of being in contact with the upper support material and the lower support material, respectively.
The upper reinforcing material has a convex shape in front view in which the upper horizontal member and the pair of columns are fitted in a space surrounded by the upper horizontal member and the pair of columns except for the left and right joints of the upper horizontal member and the pair of columns. ,
The main reinforcing body is characterized by being a seismic damping damper erected in a brace shape between the upper support material and the lower support material .
The invention according to claim 5 is characterized in that, in any of the configurations of claims 1 to 4 , the lower support member is erected between a pair of columns in a state of being in contact with the lower horizontal member. ..
The invention according to claim 6 is characterized in that, in any of the configurations of claims 1 to 4 , the lower support member is erected between a pair of columns in a non-contact state with the lower horizontal member. do.
The invention according to claim 7 is characterized in that, in the configuration of claim 6 , the lower support material is arranged at a height such that the upper surface thereof is equal to or higher than the floor surface of the floor material.
According to the eighth aspect of the present invention, in the configuration of claim 6 or 7 , the lower horizontal member and the lower support member are in contact with the upper surface of the lower horizontal member and the lower surface of the lower support member, respectively. It is characterized by providing a lower reinforcing material to be connected to each.
In order to achieve the above object, the invention according to claim 9 has a pair of pillars, an upper horizontal member horizontally arranged on the upper side of the pillars, and horizontally arranged on the lower side of the pillars. In a wooden building including a lower horizontal member, a ceiling material located below the upper horizontal member, and a floor material located above the lower horizontal member, columns, upper horizontal members, and lower horizontal members are used. It is a method to reinforce a frame composed of materials.
At least one upper reinforcing material is provided on the lower surface of the upper horizontal member and the inner surface of the pair of columns in the process of removing the wall material between the ceiling surface of the ceiling material and the floor surface of the floor material. The process of connecting, the process of erection of the upper support material between the pair of columns in contact with the lower end of the upper reinforcing material, and the process of arranging the lower support material between the pair of columns above the lower horizontal member. The process of installing a seismic damper in a brace shape between the upper support material and the lower support material in a state of being in contact with the upper support material and the lower support material, respectively, and the ceiling surface and the floor surface. It is characterized by performing the process of closing the space with a wall material.

According to the first and third , fourth and ninth aspects, the upper reinforcing material is connected to the lower surface of the upper horizontal member and the inner side surface of the pair of columns in the frame, respectively, and the upper support material and the lower support material are supported. Since the main reinforcing body is placed between the upper support material and the lower support material in contact with the material, the man-hours can be reduced without peeling off the ceiling or floor, and the columns can be installed. It is possible to suppress bending deformation and secure the necessary seismic control and seismic resistance. Therefore, it is possible to easily apply seismic retrofitting and seismic retrofitting to existing wooden buildings.
Further , by using a seismic damping damper erected in a brace shape between the upper support material and the lower support member as the main reinforcing body, it is possible to easily impart seismic control performance to the frame.
In particular, according to the invention of claim 1, in addition to the above effect, the upper reinforcing material is diagonally bent from both ends of the linear main body portion in the longitudinal direction to the same surface side of the main body portion. The mounting part is formed from the mounting part, and the mounting part is connected to the lower surface of the upper horizontal member and the inner side surface of the pillar, respectively, and arranged diagonally between the upper horizontal member and the pillar. The upper reinforcing material can be attached even in a narrow gap in the frame that opens between them.
In particular, according to the third aspect of the present invention, in addition to the above effects, the upper reinforcing material is connected to the lower surface of the upper horizontal member and the inner side surface of the column at both ends by using pins, respectively, in the longitudinal direction. By using an elastic member whose dimensions can be adjusted, it is possible to attach an upper reinforcing material according to the situation at the site such as the size of the frame.
In particular, according to the invention of claim 4 , in addition to the above effect, the upper reinforcing material is provided with the upper horizontal member and the pair of columns in the space surrounded by the upper horizontal member and the pair of columns. The rigidity of the frame can be further increased by having a convex front view that fits except for the left and right joints .
According to the second aspect of the present invention, in addition to the above effects, since a pair of upper reinforcing materials are provided symmetrically when viewed from the front of the frame, it is possible to easily construct even if there are studs between the columns. Become.
According to the fifth aspect of the present invention, in addition to the above effect, the lower support material is erected between the pair of pillars in contact with the lower horizontal member, which leads to the reinforcement of the lower support material. ..
According to the invention of claim 6 , in addition to the above-mentioned effect, the lower support material is erected between the pair of columns in a non-contact state with the lower horizontal member, so that the lower support material is supported in the frame. The lumber can be easily fixed above the lower horizontal lumber.
According to the invention of claim 7 , in addition to the above effect, the lower support material is arranged at a height such that the upper surface is equal to or higher than the floor surface of the floor material, so that the lower support material is fixed and the main support material is fixed. The reinforcing body can be easily fixed.
According to the eighth aspect of the present invention, in addition to the above effects, the lower horizontal member and the lower support member are in contact with the upper surface of the lower horizontal member and the lower surface of the lower support member, respectively. By providing the lower reinforcing material to be connected, it becomes possible to more effectively prevent bending deformation of the frame.

In the explanatory view of the frame for seismic control reinforcement, (A) shows the front surface and (B) shows the right side surface (the pillar on the right side is omitted). In the explanatory view of the frame from which the wall material is partially removed, (A) shows the front surface, and (B) shows the right side surface (the pillar on the right side is omitted). In the explanatory view of the frame to which the upper reinforcing material is attached, in the explanatory view of the frame, (A) shows the front surface, and (B) shows the right side surface (the pillar on the right side is omitted). (A) is an enlarged view of the left side joint to which the upper reinforcing material is attached, (B) is a plan view of the upper reinforcing material, and (C) is a front view. In the explanatory view of the frame to which the upper support material and the lower support material are attached, (A) shows the front surface, and (B) shows the right side surface (the pillar on the right side is omitted). It is explanatory drawing which shows the mounting structure of the upper support material and the lower support material, (A) shows a plane, (B) shows the front surface respectively. In the explanatory view of the frame in which the vibration control damper is installed, (A) shows the front surface and (B) shows the right side surface (the pillar on the right side is omitted). In the explanatory view of the frame to which the vibration control damper is fixed, (A) shows the front surface and (B) shows the right side surface (the pillar on the right side is omitted). In the explanatory view of the frame in which the removed portion of the wall material is again closed with the wall material, (A) shows the front surface and (B) shows the right side surface (the pillar on the right side is omitted). (A) is an enlarged view of the left side joint to which the upper reinforcing material is attached in the modified example, (B) is a plan view of the upper reinforcing material, and (C) is a front view. (A) is an enlarged view of the left side joint to which the upper reinforcing material is attached in the modified example, (B) is a front view of the upper reinforcing material, (C) is a plan view of the reinforcing metal fitting, and (D) is a front view. be. (A) is a front view of the upper reinforcing material of the modified example, (B) is a side view, and (C) is a bottom view. It is explanatory drawing which shows the mounting structure of the upper support material and the lower support material of the modification, (A) shows the plane before mounting, (B) shows the plane after mounting, respectively. In the partial front view of the frame which shows the modification example of the lower support material, (A) shows the modification example in which the lower support material is brought into contact with the base, and (B) shows the modification example using the lower reinforcing material. (A) is a front view of a frame using structural plywood instead of a vibration control damper, and (B) is a front view of a frame using a brace.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1A and 1B are explanatory views of a frame 1 constituting a wall, FIG. 1A is a front view, FIG. 1B is a right side view, and the pillar on the right side is omitted. The frame 1 includes a beam 2 as an upper horizontal member, a base 3 as a lower horizontal member, and a pair of columns 4 and 4 erected vertically between the beam 2 and the base 3. .. Reference numeral 5 is a wall material that covers the front and back of the frame 1. The dotted line L1 indicates a ceiling surface formed by a ceiling material (not shown), and the dotted line L2 indicates a floor surface formed by a floor material (not shown).

Here, the procedure for applying vibration control reinforcement to the frame 1 will be described.
First, as shown in FIG. 2, in the wall material 5 on the front side of the frame 1, the portion 5a between the ceiling surface L1 and the floor surface L2 and between the left and right pillars 4 and 4 is removed, and the frame 1 is removed. The inside is exposed to the front side.

Next, as shown in FIG. 3, the upper reinforcing member 6 is attached between the beam 2 and the columns 4 and 4 slightly below the ceiling surface L1. As shown in FIG. 4, the upper reinforcing member 6 is folded back at right angles to the left and right longitudinal sides of the strip-shaped metal plate to form folded portions 7 and 7 over the entire length of the longitudinal side, and both ends in the longitudinal direction. Is slanted to the folded-back portion 7 side to form a linear main body portion 8 and mounting portions 9 and 9 at both ends thereof, and the reinforcing ribs 10 are fixed to the bent portions of each mounting portion 9 respectively. It becomes. However, the main body portion is not limited to the U-shaped cross section as shown in FIG. 4, and the cross section may be curved or the like. It does not have to be linear.
By fixing one of the mounting portions 9 to the lower surface of the beam 2 and the other to the inner surface of the pillar 4 with fixtures 11 such as nails and wood screws, the mounting portion 9 is mounted between the beam 2 and the pillar 4 in a cane shape. Will be. The upper reinforcing member 6 is symmetrically attached in pairs at a position where the lower attachment portion 9 projects downward from the ceiling surface L1.

Next, as shown in FIG. 5, the upper support member 12 and the lower support member 13 are horizontally erected between the columns 4 and 4 on the lower side of the ceiling surface L1 and the upper side of the floor surface L2. .. In this erection, for example, as shown in FIG. 6, notches 14 penetrating back and forth are formed on the opposite inner side surfaces of the columns 4 and 4, respectively, and the upper support member 12 (lower side) is formed in the notches 14 and 14. This is done by fitting both ends of the support member 13) and attaching a reinforcing metal fitting (not shown) straddling the pillar 4 and the upper support member 12 (lower support member 13).
At this time, the upper support member 12 is erected at a height at which the upper surface abuts on the lower ends of the mounting portions 9 of the left and right upper reinforcing members 6 and 6. The lower support member 13 may be erected at a height above the floor surface L2 as a whole, or may be erected at a height such that only the upper surface is above the floor surface L2.

Next, as shown in FIG. 7, a vibration control damper 20 as a main reinforcing body is installed in the inner frame 15 composed of the left and right columns 4, 4 and the upper support member 12 and the lower support member 13. .. The vibration damping damper 20 is a viscoelastic damper in which a viscoelastic body (not shown) is bonded between the outer cylinder 21 and the inner cylinder 22 which are polymerized coaxially, and the outer end of the outer cylinder 21 and the outer end of the inner cylinder 22. Extension wood 23, 23 fixed on the extension line to each portion is arranged between the joint portion between the pillar 4 and the upper support member 12 and the joint portion between the pillar 4 and the lower support member 13. As a result, it is erected in a brace shape in the inner frame 15.
Next, as shown in FIG. 8, after fixing both the extended timbers 23 and 23 of the vibration damping damper 20 to each joint using the bracket metal fittings 24 and 24, the ceiling surface L1 is as shown in FIG. If the space between the floor surface L2 and the left and right pillars 4 and 4 is closed again with the wall material 5b, the construction of the seismic control reinforcement is completed.

Therefore, in this frame 1, when the frame 1 is vibrated in the horizontal direction due to an earthquake or the like and deformed to the left or right, compressive force and tensile force are alternately input to the vibration control damper 20 in the inner frame 15, and the outer cylinder 21 and the inner cylinder 21 are inner. The viscoelastic body adhered to the cylinder 22 is sheared and deformed to attenuate the vibration energy.
At this time, in the frame 1, since the upper reinforcing member 6 is provided between the beam 2 and the upper support member 12, bending deformation of the columns 4 and 4 is suppressed, bending fracture is less likely to occur, and vibration control is performed. Axial force to the damper 20 is efficiently input.

As described above, according to the reinforcing structure and the reinforcing method of the wooden building of the above-described form, the upper reinforcing members 6 and 6 connected to the lower surface of the beam 2 and the inner side surfaces of the pair of columns 4 and 4 in the frame 1, respectively. The upper support member 12 is erected between the pair of columns 4 and 4 in a state of being in contact with the lower ends of the upper reinforcing members 6 and 6, and the upper support member 12 is arranged between the pair of columns 4 and 4 above the base 3. A vibration control damper 20 disposed between the upper support member 12 and the lower support member 13 in a state of being in contact with the lower support member 13 and the upper support member 12 and the lower support member 13, respectively. By including the above, the number of steps can be reduced without peeling off the ceiling and floor, and the bending deformation of the columns 4 and 4 can be suppressed to ensure the necessary seismic control. Therefore, it is possible to easily apply vibration control reinforcement to existing wooden buildings.

In particular, here, since the lower support member 13 is erected between the columns 4 and 4 in a non-contact state with the base 3, the lower support member 13 is fixed in the frame 1 above the base 3. Easy to do.
Further, since the upper surface of the lower support material 13 has a height that is equal to or higher than the floor surface L2 (here, the height exceeds the floor surface L2), the vibration control damper 20 is fixed together with the fixing of the lower support material 13. Can be done easily.
Further, the upper reinforcing member 6 is formed of a linear main body portion 8 and mounting portions 9 and 9 that are obliquely bent from both ends in the longitudinal direction of the main body portion 8 toward the same surface side to form a lower surface of the beam 2. By connecting the mounting portions 9 and 9 to the inner side surface of the pillar 4, the beams 2 and the pillar 4 are arranged diagonally, so that even a narrow gap in the frame 1 that opens between the ceiling materials can be used. The upper reinforcing material 6 can be attached. In particular, since a pair of upper reinforcing members 6 are provided symmetrically in the front view of the frame 1, construction can be easily performed even if there are studs between the columns 4 and 4.
Since the main reinforcing body is a seismic damping damper 20 erected in a brace shape between the upper support member 12 and the lower support member 13, seismic control performance can be easily imparted to the frame 1.

If there are no studs, the upper reinforcing material may be provided as one member in the shape of a front view table by integrating the mounting portions on the upper end side of the pair of diagonal lumbers, or they may be erected in a brace shape by crossing each other. You may.
Further, as in the upper reinforcing material 6A shown in FIG. 10, a pair of rods 31 and 31 are screwed together at both ends of the body 30 with reverse screws to form a turnbuckle structure in which the entire length can be expanded and contracted, and each rod is formed. Mounting brackets 33 and 33 are pivotally attached to the ends of the material 31 by pins 32 and 32, respectively, and one mounting bracket 33 is fixed to the lower surface of the beam 2 and the other mounting bracket 33 is fixed to the inner surface of the pillar 4. A pair of left and right may be attached with the tool 11.
In this way, if the upper reinforcing material 6A is an elastic member whose both ends are axially attached to the lower surface of the beam 2 and the inner side surface of the column 4 and the dimensions in the longitudinal direction can be adjusted, the size of the frame 1 and the like can be adjusted at the site. It is possible to attach the upper reinforcing material 6A according to the situation of.

Further, as in the upper reinforcing material 6B shown in FIG. 11, the both ends of the cane 35 made of wood are composed of attachment portions 37 to the frame 1 and holding portions 38 and 38 sandwiching both front and rear surfaces of the cane 35. The mounting brackets 36 are fixed to each other, and the mounting portion 37 of the mounting bracket 36 on the upper end side is fixed to the lower surface of the beam 2, and the mounting portion 37 of the mounting bracket 36 on the lower end side is fixed to the inner side surface of the pillar 4 in pairs on the left and right. You may.

In addition, like the upper reinforcing material 6C shown in FIG. 12, the front view convex shape that fits into the space formed between the beam 2 and the left and right columns 4 and 4 except for the left and right joints. It is formed of a wooden or metal plate portion 40 and strips 41, 41 ... Fixed at right angles to the upper side and the left and right sides of the plate portion 40, respectively, and the strip 41 on the upper side is formed from the lower surface of the beam 2. It may be attached to the fixing tool 11 and the lower portions of the strips 41 and 41 on the left and right sides may be attached to the inner side surfaces of the columns 4 and 4 by the fixing tool 11, respectively. Here, the plate portion 40 has a convex shape excluding the left and right joints in order to avoid interference with the reinforcing metal fittings provided at each joint, and if there is no reinforcing metal fitting, the plate portion 40 may have a rectangular shape when viewed from the front. There is no problem.
If the upper reinforcing member 6C is fitted in the space surrounded by the beam 2 and the columns 4 and 4, the rigidity of the frame 1 can be further increased.

On the other hand, as for the mounting structure of the upper support member and the lower support member, as shown in FIG. 13A, for example, notches 16 and 16 are formed on the front side of the inner side surface of the left and right columns 4 and 4, and the upper side is formed. Convex portions 17 that fit into the notches 16 of each pillar 4 are formed at both ends of the support member 12 (lower support member 13), and the upper support is provided from the front side of the frame 1 as shown in FIG. The member 12 (lower support member 13) may be attached by fitting the protrusions 17 and 17 at both ends into the notches 16 and 16 between the columns 4 and 4.

Further, the position of the lower support material is also erected above the base 3 in a non-contact state as described above, and as shown in FIG. 14A, the lower support material 13 is placed on the upper surface of the base 3. It may be erected in a state of contact. The contact state is connected to the reinforcement of the lower support member 13. Further, as shown in FIG. 14B, even when the base 3 is in a non-contact state, a band having mounting portions 46, 46 bent at both ends is formed between the base 3 and the lower support member 13. A pair of plate-shaped lower reinforcing members 45, 45 are arranged on the left and right, and the upper end mounting portion 46 is placed on the inner surface of the pillar 4 at a height that abuts on the lower supporting member 13, and the lower end mounting portion 46 is placed on the upper surface of the base 3. It may be fixed to each. Of course, the form of the lower reinforcing material is not limited to this, and the same changes as the upper reinforcing material can be made.
If the lower reinforcing material 45 connected to the base 3 and the lower support material 13 in contact with the upper surface of the base 3 and the lower surface of the lower support material 13, respectively, is provided, the frame 1 can be bent. Deformation can be prevented more effectively.

In the above embodiment, a vibration control damper composed of a viscoelastic damper and an extended wood is adopted as the main reinforcing body, but the present invention is not limited to this, and is composed of a plurality of steel plates and a viscoelastic body bonded between them. As a laminated type, one steel plate that is alternately laminated is joined to the inner surface of the center of the column, and the other steel plate is erected from the joint between the upper support material, the lower support material, and the column. It can be changed as appropriate, such as by joining to a K-shaped vibration control damper. A hydraulic damper or the like can be used instead of the viscoelastic damper.
Further, the present invention is not limited to seismic retrofitting using a seismic damping damper, and as shown in FIG. 15 (A), a structural plywood 50 may be attached to the frame surface of the inner frame 15, or as shown in FIG. 15 (B). It is also possible to perform seismic reinforcement by installing a wooden or metal brace 51 in the inner frame 15.

1 ... Frame, 2 ... Beam, 3 ... Base, 4 ... Pillar, 5 ... Wall material, 6,6A, 6B, 6C ... Top reinforcement, 8 ... Main body, 9,37,46・ ・ Mounting part, 11 ・ ・ Fixture, 12 ・ ・ Upper support material, 13 ・ ・ Lower support material, 15 ・ ・ Inner frame, 20 ・ ・ Seismic damping damper, 21 ・ ・ Outer cylinder, 22 ・ ・ Inner cylinder , 23 ... extension wood, 30 ... body, 31 ... bar, 33, 36 ... mounting bracket, 35 ... square cane, 38 ... holding part, 40 ... board, 41 ... strip , 45 ... Lower reinforcement, 50 ... Structural plywood, 51 ... Brace, L1 ... Ceiling surface, L2 ... Floor surface.

Claims (9)

A pair of pillars, an upper horizontal member horizontally arranged on the upper side of the pillar, a lower horizontal member horizontally arranged on the lower side of the pillar, and a position below the upper horizontal member. A structure for reinforcing a frame composed of the pillar, the upper horizontal member, and the lower horizontal member in a wooden building including a ceiling material to be used and a flooring material located above the lower horizontal member. And,
At least one upper reinforcing material connected to the lower surface of the upper horizontal member and the inner side surface of the pair of columns in the frame, respectively.
An upper support material erected between the pair of columns in a state of being in contact with the lower end of the upper reinforcing material, and
A lower support member disposed between the pair of columns above the lower horizontal member, and a lower support member.
It comprises a main reinforcing body disposed between the upper support material and the lower support material in a state of being in contact with the upper support material and the lower support material, respectively .
The upper reinforcing material includes a linear main body portion and a mounting portion that is obliquely bent from both ends in the longitudinal direction of the main body portion toward the same surface side of the main body portion, and includes a lower surface of the upper horizontal member and the above-mentioned. The mounting portion is connected to the inner side surface of the pillar and is obliquely arranged between the upper horizontal member and the pillar.
The main reinforcing body is a reinforcing structure of a wooden building, characterized in that it is a vibration control damper erected in a brace shape between the upper support material and the lower support material . The reinforcing structure for a wooden building according to claim 1 , wherein the upper reinforcing material is provided in pairs symmetrically when viewed from the front of the frame. A pair of pillars, an upper horizontal member horizontally arranged on the upper side of the pillar, a lower horizontal member horizontally arranged on the lower side of the pillar, and a position below the upper horizontal member. A structure for reinforcing a frame composed of the pillar, the upper horizontal member, and the lower horizontal member in a wooden building including a ceiling material to be used and a flooring material located above the lower horizontal member. And,
At least one upper reinforcing material connected to the lower surface of the upper horizontal member and the inner side surface of the pair of columns in the frame, respectively.
An upper support material erected between the pair of columns in a state of being in contact with the lower end of the upper reinforcing material, and
A lower support member disposed between the pair of columns above the lower horizontal member, and a lower support member.
It comprises a main reinforcing body disposed between the upper support material and the lower support material in a state of being in contact with the upper support material and the lower support material, respectively.
The upper reinforcing member is an elastic member whose both ends are connected to the lower surface of the upper horizontal member and the inner side surface of the pillar by using pins, and the dimensions in the longitudinal direction can be adjusted.
The main reinforcing body is a reinforcing structure of a wooden building, characterized in that it is a vibration control damper erected in a brace shape between the upper support material and the lower support material . A pair of pillars, an upper horizontal member horizontally arranged on the upper side of the pillar, a lower horizontal member horizontally arranged on the lower side of the pillar, and a position below the upper horizontal member. A structure for reinforcing a frame composed of the pillar, the upper horizontal member, and the lower horizontal member in a wooden building including a ceiling material to be used and a flooring material located above the lower horizontal member. And,
At least one upper reinforcing material connected to the lower surface of the upper horizontal member and the inner side surface of the pair of columns in the frame, respectively.
An upper support material erected between the pair of columns in a state of being in contact with the lower end of the upper reinforcing material, and
A lower support member disposed between the pair of columns above the lower horizontal member, and a lower support member.
It comprises a main reinforcing body disposed between the upper support material and the lower support material in a state of being in contact with the upper support material and the lower support material, respectively.
The upper reinforcing member fits in a space surrounded by the upper horizontal member and the pair of columns except for the left and right joints of the upper horizontal member and the pair of columns. Has a character shape,
The main reinforcing body is a reinforcing structure of a wooden building, characterized in that it is a vibration control damper erected in a brace shape between the upper support material and the lower support material . The reinforcing structure for a wooden building according to any one of claims 1 to 4, wherein the lower support member is erected between the pair of pillars in contact with the lower horizontal member. The reinforcing structure of a wooden building according to any one of claims 1 to 4, wherein the lower support material is erected between the pair of pillars in a non-contact state with the lower horizontal member. .. The reinforcing structure for a wooden building according to claim 6 , wherein the lower support material is arranged at a height such that the upper surface thereof is equal to or higher than the floor surface of the floor material. It is characterized by comprising a lower reinforcing material which is connected to the lower horizontal member and the lower support member in a state of being in contact with the upper surface of the lower horizontal member and the lower surface of the lower support member, respectively. The reinforcing structure of the wooden building according to claim 6 or 7 . A pair of pillars, an upper horizontal member horizontally arranged on the upper side of the pillar, a lower horizontal member horizontally arranged on the lower side of the pillar, and a position below the upper horizontal member. A method of reinforcing a frame composed of the pillar, the upper horizontal member, and the lower horizontal member in a wooden building including a ceiling material to be used and a flooring material located above the lower horizontal member. And,
The step of removing the wall material between the ceiling surface made of the ceiling material and the floor surface made of the floor material,
A step of connecting at least one upper reinforcing material to the lower surface of the upper horizontal member and the inner side surface of the pair of columns in the frame.
The process of erection of the upper support material between the pair of columns in a state of being in contact with the lower end of the upper reinforcing material, and
A step of arranging a lower support material between the pair of columns above the lower horizontal member and
A step of installing a vibration damping damper in a brace shape between the upper support material and the lower support material in a state of being in contact with the upper support material and the lower support material, respectively.
The process of closing the space between the ceiling surface and the floor surface with a wall material,
A method of reinforcing a wooden building characterized by performing.

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