JP7494357B2 - Earthquake-resistant reinforcement device, mounting structure for earthquake-resistant reinforcement device, and earthquake-resistant reinforcement method - Google Patents

Description

The present invention relates to an earthquake-resistant reinforcement device, a mounting structure for the earthquake-resistant reinforcement device, and an earthquake-resistant reinforcement method.

In conventional wooden buildings, a method of earthquake-resistance reinforcement using reinforcing fiber materials such as aramid fiber or carbon fiber is used to join the foundation to the upper structure such as the base and pillars that are placed on the foundation. In Patent Document 1, a bonding band made of reinforcing fiber material such as aramid fiber or carbon fiber is provided from the foundation to the pillars in the upper structure, the upper part is pressed down to the pillars with a metal plate, and the lower part is pressed down to the foundation with a reinforcing band, preventing the upper structure from shifting or coming off from the foundation due to vertical shaking in a shallow earthquake, for example.

JP 2008-002179 A

However, in order to integrate the foundation and the upper structure, conventional connecting strips made of reinforcing fiber materials had to be tightly attached to both the foundation and the upper structure, and when a step occurred between the foundation and the upper structure, for example, it was sometimes difficult to use connecting strips made of reinforcing fiber materials.
Another problem was that it was costly to form the reinforcing fiber material into strips in order to ensure close contact with both the foundation and the superstructure.

The present invention was made in consideration of the above circumstances, and its objective is to provide a method for earthquake reinforcement at low cost while being flexible and adaptable for use in buildings.

The invention described in claim 1 is, for example, as shown in Figs. 1 to 3 and 7, a seismic reinforcement device 30 that integrates a foundation 1 and an upper structure (base 2, pillar material 5) provided on the foundation 1,
A lower fixing hardware 31 fixed to the side surface of the foundation 1;
An upper fixing hardware 35 fixed to the upper structure;
and a reinforcing fiber material bundle Fb provided between the lower fixing hardware 31 and the upper fixing hardware 35 to connect the lower fixing hardware 31 and the upper fixing hardware 35.
The reinforcing fiber material bundles Fb are formed by solidifying bundles of reinforcing fiber material Fm made of carbon fibers with a thermoplastic resin,
The lower fixing hardware 31 has a lower protruding portion 32 that protrudes laterally and on which a lower portion of the reinforcing fiber material bundle Fb is provided,
The upper fixing metal fitting 35 has an upper protruding portion 36 on which an upper portion of the reinforcing fiber material bundle Fb is provided, the upper protruding portion 36 protruding in the same direction as the lower protruding portion 32,
The lower protrusion 32 has a lower holding portion 32a that holds the lower end portion of the reinforcing fiber material bundle Fb,
The upper protrusion 36 has an upper holding portion 36a that holds the upper end portion of the reinforcing fiber material bundle Fb,
The reinforcing fiber material bundles Fb are provided at their lower and upper ends with retaining portions 33, 37,
The reinforcing fiber material bundle Fb is characterized in that the portion of the lower end above the anti-slip portion 33 is held by the lower retaining portion 32a of the lower protrusion 32, and the portion of the upper end below the anti-slip portion 37 is held by the upper retaining portion 36a of the upper protrusion 36.

According to the invention described in claim 1, the reinforcing fiber material bundle Fb is provided between the lower fixing hardware 31 and the upper fixing hardware 35 to connect the lower fixing hardware 31 and the upper fixing hardware 35, the lower part of the reinforcing fiber material bundle Fb is provided on the lower protruding part 32 protruding laterally from the lower fixing hardware 31, and the upper part of the reinforcing fiber material bundle Fb is provided on the upper protruding part 36 protruding in the same direction as the lower protruding part 32 from the upper fixing hardware 35, so that it is not necessary to adhere the reinforcing fiber material bundle Fb to either the foundation 1 or the upper structure. In other words, even if a step occurs between the foundation 1 and the upper structure, the reinforcing fiber material bundle Fb can integrate the foundation 1 and the upper structure. Therefore, regardless of the presence or absence of a step, the foundation 1 and the upper structure of the building can be integrated to perform earthquake-resistant reinforcement, and therefore it is excellent in flexibility and versatility when adopted to a building.
Furthermore, since the reinforcing fiber material bundles Fb do not need to be attached to either the foundation 1 or the superstructure, they do not need to be formed into strips and can be used as bundles. This allows for low-cost seismic reinforcement.
In addition, the reinforcing fiber material bundles Fb are made of carbon fibers, and each fiber of the reinforcing fiber material Fm is lightweight and strong, and when bundled together, they have sufficient strength to be used as a seismic reinforcement material.Furthermore, because the bundles of reinforcing fiber material Fm are solidified with thermoplastic resin, the foundation 1 and upper structure of the building can be firmly integrated without unnecessarily stretching or unraveling.
Furthermore, the reinforcing fiber material bundles Fb have their lower end portions above the retaining portion 33 held by the lower retaining portion 32a of the lower protrusion 32, and their upper end portions below the retaining portion 37 held by the upper retaining portion 36a of the upper protrusion 36, so that the reinforcing fiber material bundles Fb can be held so as not to come off the lower retaining portion 32a of the lower protrusion 32 or the upper retaining portion 36a of the upper protrusion 36, and the length of the reinforcing fiber material bundles Fb can be minimized. This allows the lower fixing hardware 31 and the upper fixing hardware 35 to be securely connected by the reinforcing fiber material bundles Fb, enabling earthquake-resistant reinforcement to be performed at low cost.

The invention described in claim 2 is, for example, as shown in Figs. 1 to 3 and 7, in the earthquake-resistant reinforcement device 30 described in claim 1,
The lower protrusion 32 is
The lower holding portion 32a has a screw hole formed along the vertical direction;
a lower screw portion 32b having a through hole formed along a central axis, the through hole being inserted through a lower end of the reinforcing fiber material bundle Fb, and the lower screw portion 32b being inserted through the screw hole in the lower holding portion 32a;
a lower nut portion 32c into which a lower end portion of the lower screw portion 32b is screwed in a state in which the lower nut portion 32c is in contact with a lower surface of the lower holding portion 32a,
The retaining portion 33 provided at the lower end of the reinforcing fiber material bundle Fb is located at the lower end of the lower threaded portion 32b,
The upper protrusion 36 is
The upper holding portion 36a has a screw hole formed along the vertical direction;
an upper screw portion 36b having a through hole formed along a central axis, through which an upper end portion of the reinforcing fiber material bundle Fb is passed and which is also passed through the screw hole in the upper holding portion 36a;
an upper nut portion 36c into which an upper end portion of the upper screw portion 36b is screwed in a state of contacting an upper surface of the upper holding portion 36a;
The retaining portion 37 provided at the upper end of the reinforcing fiber material bundle Fb is characterized by being located at the upper end of the upper threaded portion 36b.

The invention described in claim 2 provides the same effect as the invention described in claim 1.

The invention described in claim 3 is, for example, as shown in Figs. 1 to 3 and Figs. 7 to 9, in the earthquake-resistant reinforcement device 30, 40 described in claim 1 or 2 ,
The reinforcing fiber material bundle Fb is further characterized by being provided with tension applying means (for example, screw portions 32b, 36b, nut portions 32c, 36c, pulleys 42a, 46a) for applying tension by pulling the reinforcing fiber material bundle Fb in the length direction.

According to the invention described in claim 3 , a tension applying means is further provided for pulling the reinforcing fiber material bundles Fb in the longitudinal direction to apply tension thereto. Therefore, by applying tension to the reinforcing fiber material bundles Fb using the tension applying means, the unity between the foundation 1 and the upper structural portion can be enhanced, and more solid earthquake-resistant reinforcement can be achieved.

The invention described in claim 4 is, for example, as shown in Figs. 1, 2, 7 and 8, a mounting structure for a seismic reinforcement device 30, 40 according to any one of claims 1 to 3 , which is mounted on a skeleton of a building including the foundation 1 and the upper structure,
The upper structure includes a base 2 provided on the foundation 1 and a column member 5 provided on the base 2,
A dimension adjustment member (splint 6) is fixed integrally to the lower end of the pillar 5 so that the side surface is flush with the side surface of the pillar 5 and the width dimension of the lower end of the pillar 5 is increased.
The lower fixing hardware 31, 41 is fixed to the side surface of the foundation 1,
The upper fixing hardware 35, 45 is characterized in that it is fixed across the base 2 and the dimension adjustment material which is integrally fixed to the lower end of the pillar material 5.

According to the invention described in claim 4 , even if structural constraints arise that make it difficult to fix the upper fixing hardware 35, 45 to the pillar material 5, for example due to interference between the pillar material 5 and other components, a dimension adjustment material (splint 6) is fixed integrally to the lower end of the pillar material 5, whose side is flush with the side of the pillar material 5 and which increases the width dimension at the lower end of the pillar material 5, and the upper fixing hardware 35, 45 is fixed across the base 2 and the dimension adjustment material fixed integrally to the lower end of the pillar material 5. Therefore, the upper fixing hardware 35, 45 can be fixed to the pillar material 5 without being hindered by structural constraints, and ultimately the earthquake-resistant reinforcement device 30, 40 can be securely and firmly attached to the building's structure.

The invention described in claim 5 is a method for integrating the foundation 1 and the upper structure by using the earthquake-resistant reinforcement device 30, 40 described in claim 1 or 2 , as shown in, for example, Figs. 1 to 3 and 7 to 9,
The bundle of reinforcing fiber material Fm is spanned between the lower protrusions 32, 42 of the lower fixing hardware 31, 41 and the upper protrusions 36, 46 of the upper fixing hardware 35, 45, and then solidified with the thermoplastic resin to form the reinforcing fiber material bundle Fb.

The invention described in claim 6 is a method for integrating the foundation 1 and the upper structure by using the earthquake-resistant reinforcement device 30, 40 described in claim 3 , as shown in, for example, Figs. 1 to 3 and 7 to 9,
The bundle of reinforcing fiber material Fm is laid between the lower protrusions 32, 42 of the lower fixing hardware 31, 41 and the upper protrusions 36, 46 of the upper fixing hardware 35, 45, and then solidified with the thermoplastic resin to form the reinforcing fiber material bundle Fb;
After the thermoplastic resin has hardened, the reinforcing fiber material bundles Fb are tensioned by being pulled in the length direction by the tension applying means.

The present invention provides excellent flexibility and versatility when applied to buildings, and allows for low-cost seismic reinforcement.

FIG. 2 is a perspective view of the mounting manner of the earthquake-resistant reinforcement device as viewed obliquely from above. FIG. 2 is a perspective view of the installation mode of the earthquake-resistant reinforcement device as viewed obliquely from below. FIG. 2 is a diagram illustrating the configuration of a reinforcing fiber material bundle. 2 is a diagram illustrating the configuration and installation mode of a first seismic reinforcement device. FIG. 13 is a diagram illustrating a state in which a bundle of reinforcing fiber material is wound around a lower protruding portion and an upper protruding portion. FIG. 4A to 4C are diagrams illustrating the configuration and installation mode of a second earthquake-resistant reinforcement device. 13A to 13C are diagrams illustrating the configuration and installation mode of a third seismic reinforcement device. FIG. 4 is a diagram illustrating the configuration and installation mode of the fourth earthquake-resistant reinforcement device. 13 is a diagram illustrating the state in which the lower end of the reinforcing fiber material bundle is wound around a pulley of the lower protrusion and the upper end is wound around a pulley of the upper protrusion. FIG.

The following describes the embodiments of the present invention with reference to the drawings. However, the embodiments described below have various limitations that are technically preferable for implementing the present invention, but the technical scope of the present invention is not limited to the following embodiments and illustrated examples.

In each figure, the reference number 1 indicates the foundation of a wooden building. The part shown is the rising part of the foundation 1, such as a slab foundation or a strip foundation, and reinforcing bars are buried inside to maintain strength.

A plurality of foundations 2 are provided on a foundation 1. One of the plurality of foundations 2 shown in Figures 1 and 2 is formed long so as to span from the foundation 1 to another foundation (not shown).
A plurality of joists 3 are fixed to the side surfaces of the plurality of bases 2. These plurality of joists 3 are formed long in the same direction as the above-mentioned bases 2 which are formed long.
Furthermore, a plurality of joists 4 are arranged perpendicular to the upper surfaces of the above-mentioned long-form foundation 2 and the plurality of joists 3.
Although not shown, floor underlayment and floor finishing materials are layered on the upper surfaces of these multiple joists 4 to form the floor structure of the building.

A plurality of pillars 5 are erected on the plurality of bases 2. The plurality of pillars 5 suitably include through pillars and tubular pillars.
Between adjacent columns 5, diagonally arranged braces 7 are appropriately provided.
Although not shown, the exterior wall base material, moisture-permeable waterproof sheet, exterior material, etc. are provided on the outdoor side of the multiple pillar materials 5, while the interior wall base material, interior finishing material, etc. are provided on the indoor side to form the walls of the building. The inside of the walls is filled with heat insulating material.

In order to improve the earthquake resistance performance of the building, earthquake-resistant reinforcement devices 10 to 40 are adopted in the building's framework structure configured as described above, which integrate the foundation 1 with the pillar material 5 provided on the base 2.
Conventionally, hold-down hardware has been attached to the joints between the foundation of a wooden building and the superstructure (e.g., pillars) that is built on this foundation to prevent detachment and destruction due to earthquakes, etc. However, many wooden buildings built before 2000 do not have hold-down hardware attached, or do not have the necessary number of hold-down hardware to maintain earthquake resistance, so earthquake retrofitting of these wooden buildings is strongly recommended.
Therefore, although the earthquake-resistant reinforcement devices 10 to 40 are preferably used when renovating buildings, the present invention is not limited to this application, and they may also be used when constructing new buildings.

The earthquake-resistant reinforcement devices 10 to 40 are fixed to the foundation 1 and the pillar material 5. Meanwhile, the joists 3 are provided in a straight line between the foundation 1 and the pillar material 5. As a result, the earthquake-resistant reinforcement devices 10 to 40 and the joists 3 may interfere with each other, resulting in structural constraints that make it difficult to fix the earthquake-resistant reinforcement devices 10 to 40 to the pillar material 5.

Therefore, splints 6 for attaching the earthquake-resistant reinforcement devices 10 to 40 are fixed integrally to the lower ends of the pillars 5. The splints 6 are made of square timber and function as dimension adjustment materials that lengthen the width (direction along the length of the base 2) of the lower ends of the pillars.
The splint 6 is fixed to the pillar 5 by screws, adhesive, or a combination of these, or by any other suitable method.

Moreover, at least the indoor side surface of the splint 6 is flush with the side surface of the pillar material 5. However, this is not limited to this, and each of the outdoor side surface and the indoor side surface may be flush with the side surface of the pillar material 5.
Furthermore, in the case where the brace 7 and the splint 6 interfere with each other, a notch 6a is formed on the exterior side of the splint 6 to prevent the brace 7 and the splint 6 from interfering with each other.

The earthquake-resistant reinforcement devices 10 to 40 comprise lower fixed metal fittings 11 to 41 fixed to the side of the foundation 1, upper fixed metal fittings 15 to 45 fixed across the base 2 and the pillar material 5 (splint 6), and reinforcing fiber material bundles Fb arranged between the lower fixed metal fittings 11 to 41 and the upper fixed metal fittings 15 to 45 and connecting the lower fixed metal fittings 11 to 41 and the upper fixed metal fittings 15 to 45.
The lower fixing metal fittings 11 to 41 also have lower protruding portions 12 to 42 that protrude laterally and on which the lower portions of the reinforcing fiber material bundles Fb are provided.
Furthermore, the upper fixing metal members 15 to 45 have upper protrusions 16 to 46 which protrude in the same direction as the lower protrusions 12 to 42 and on which the upper portions of the reinforcing fiber material bundles Fb are provided.

The reinforcing fiber material bundles Fb use, as the reinforcing fiber material Fm, for example, carbon fiber made of polyacrylonitrile (PAN). However, this is not limited to this, and carbon fiber using pitch may be used, or aramid fiber (polyamide fiber whose molecular skeleton is made of aromatic (benzene ring)) may be used, and various reinforcing fiber materials Fm may be used in combination within the possible range.
3A, the bundles of reinforcing fiber material Fm are solidified with thermoplastic resin. The timing of solidification with thermoplastic resin is either before or after tension is applied to the bundles of reinforcing fiber material Fm, and the selection varies depending on the structure of the seismic reinforcement devices 10 to 40 described later.
The reinforcing fiber material bundle Fb in this embodiment is simply a bundle of a large number of reinforcing fiber materials Fm, as shown in Fig. 3(a). That is, it is not a bundle of fibers that has been twisted in a special way like a rope, nor is it woven as shown in Fig. 3(b). In short, the reinforcing fiber material bundle Fb is simply a bundle, and is produced without going through a process of, for example, knitting or weaving. This makes it possible to keep the production cost extremely low.

The earthquake-resistant reinforcement devices 10 to 40 in this embodiment include a first earthquake-resistant reinforcement device 10, a second earthquake-resistant reinforcement device 20, a third earthquake-resistant reinforcement device 30, and a fourth earthquake-resistant reinforcement device 40, which have different connection patterns between the lower fixing hardware 11 to 41 and the upper fixing hardware 15 to 45 using the reinforcing fiber material bundles Fb.
The first seismic reinforcement device 10, the second seismic reinforcement device 20, the third seismic reinforcement device 30, and the fourth seismic reinforcement device 40 may be used in combination for one building, as shown in Figures 1 and 2, or each device may be used for a building according to its type.

The detailed configurations of the first seismic reinforcement device 10, the second seismic reinforcement device 20, the third seismic reinforcement device 30, and the fourth seismic reinforcement device 40 will be described below.
In addition, in the description of each of the earthquake-resistant reinforcement devices 10 to 40, common elements are given common symbols, and descriptions thereof will be omitted or simplified as appropriate.

[Regarding the first earthquake-resistance reinforcement device]
As shown in Figure 4, the first earthquake-resistant reinforcement device 10 in this embodiment comprises a lower fixing hardware 11 having a lower protrusion 12, an upper fixing hardware 15 having an upper protrusion 16, and a bundle of reinforcing fiber material Fb.

The lower fixing hardware 11 is an anchor bolt that is driven into the inside surface of the foundation 1 (rising portion) and protrudes toward the indoor side (the opposite direction to the outdoors). In this embodiment, a post-installed anchor (e.g., Chemical Anchor (registered trademark)) is used, but buried anchors may be used for new construction. The anchor bolt may be in contact with rebar inside the foundation 1.

The portion of the lower fixing hardware 11, which is an anchor bolt, that protrudes beyond the side surface of the foundation 1 serves as a lower protruding portion 12 on which the lower portion of the reinforcing fiber material bundle Fb is provided.
A double nut 13 (double nut for preventing loosening) is provided at the tip of the lower protruding portion 12 in the protruding direction so that the reinforcing fiber material bundle Fb does not come off. The nut 13 may be welded. Alternatively, a deformed steel bar may be used as the lower fixing hardware 11, and an enlarged diameter portion may be provided at the tip of the protruding direction.
The nut 13 is provided as necessary. In other words, the nut 13 does not have to be provided.

The upper fixed hardware 15 is a hardware whose main body (hereinafter referred to as the main iron plate part) is a rectangular iron plate that is fixed across the base 2 and the pillar material 5 (splint 6).
An upper protrusion 16 is provided at the lower end of the main steel plate portion of the upper fixing hardware 15, protruding in the same direction as the lower protrusion 12, and on which the upper portion of the reinforcing fiber material bundle Fb is provided. This upper protrusion 16 is formed of a bolt inserted into the main steel plate portion with its head welded or tapped into the main steel plate portion, and a nut 17 is provided at the tip of the upper protrusion 16 in the protruding direction to prevent the reinforcing fiber material bundle Fb from coming off. This nut 17 may be provided in double like the nut 13 described above, or may not be provided at all. Alternatively, it may be the head of a bolt provided as the upper protrusion 16.

A plurality of through holes 15a are formed in the main iron plate portion of the upper fixing hardware 15 at a position above the upper protrusion 16. Fixing bolts B for fixing the main iron plate portion of the upper fixing hardware 15 to the indoor side surface of the splint 6 are passed through the plurality of through holes 15a. In this embodiment, screw bolts are used as the fixing bolts B.
That is, the main iron plate portion of the upper fixing hardware 15 is fixed to the splint 6 by the fixing bolt B. In this embodiment, the fixing bolt B is screwed into only the pillar 5 (splint 6), but the fixing bolt B may also be screwed into the boundary between the base 2 and the pillar 5, or into the base 2, or the main iron plate portion may be fixed to the base 2 by a fixing means other than the fixing bolt B. Fixing means other than the fixing bolt B include, for example, screws and adhesives, and when screws are used, through holes for the screws are formed in the main iron plate portion.

As shown in FIGS. 4 and 5, the reinforcing fiber material bundle Fb is wound around between the lower protrusion 12 of the lower fixing metal 11 and the upper protrusion 16 of the upper fixing metal 15.
More specifically, the bundle of reinforcing fiber material Fm before being solidified by the thermoplastic resin is wound (or may be expressed as being wound) around the portion of the lower protrusion 12 of the lower fixing hardware 11 closer to the foundation 1 than the nut 13, and the portion of the upper protrusion 16 of the upper fixing hardware 15 closer to the base 2 than the nut 17. In short, the bundle of reinforcing fiber material Fm is wound around in a circular shape between the lower protrusion 12 and the upper protrusion 16. Also, in order to minimize slack, it is wound tighter than the state shown in FIG. 5.

In this embodiment, the bundle of reinforcing fiber material Fm is wound between the lower protrusion 12 and the upper protrusion 16 in at least eight round trips (eight turns). This number is a value obtained as a result of an experiment conducted by the applicant. The purpose of the experiment was to confirm the effect of the pin diameter, the number of turns of the fiber, and the fiber length on the tensile strength of the carbon fiber when the carbon fiber is wound around the pin (lower protrusion 12, upper protrusion 16). As a result of the experiment, when the bundle of reinforcing fiber material Fm was wound eight times, Pmax (the maximum load at break) exceeded the target strength of 30 kN.

In this embodiment, the bundle of reinforcing fiber material Fm is wound between the lower protrusion 12 and the upper protrusion 16, and then solidified with thermoplastic resin. When solidifying with thermoplastic resin, it is necessary to prevent unevenness from occurring in the thermoplastic resin.

[Regarding the second earthquake-resistance reinforcement device]
As shown in Figure 6, the second earthquake-resistant reinforcement device 20 in this embodiment comprises a lower fixing hardware 21 having a lower protrusion 22, an upper fixing hardware 25 having an upper protrusion 26, and a reinforcing fiber material bundle Fb.

The lower fixed hardware 21 is a hardware whose main body (hereinafter referred to as the main iron plate part) is a steel plate fixed to the inner surface of the foundation 1 (raised portion).
A plurality of fixed bolts (not shown) protruding from the inner surface of the foundation 1 toward the indoor side (the opposite direction to the outdoors) are provided in advance on the inner surface of the foundation 1. In other words, the fixed bolts are anchor bolts, and post-installed anchor bolts are used during renovation.
Furthermore, a plurality of through holes 21a are formed in the main steel plate portion of the lower fixing hardware 21 at a position above the lower protruding portion 22, through which a plurality of fixing bolts are passed.
When fixing the lower fixing hardware 21 to the inner surface of the foundation 1, multiple fixed bolts are passed through multiple through holes 21a in the main steel plate portion of the lower fixing hardware 21, the lower fixing hardware 21 is brought into contact with the inner surface of the foundation 1, and then a cap nut N is placed on the protruding tips of the multiple fixed bolts and screwed in.
In this embodiment, the lower fixing hardware 21 is formed by cutting and bending a single iron plate.
In this embodiment, the fixed bolt and the cap nut N are used to fix the lower fixing hardware 21, but the present invention is not limited to this, and as described above, a post-installed anchor bolt or other fixing means may be used. In short, as long as the lower fixing hardware 21 can be firmly fixed to the foundation 1, the fixing means is not particularly limited.

A lower protrusion 22 is integrally formed at the lower end of the main steel plate portion of the lower fixing hardware 21, which protrudes toward the indoor side (the opposite direction from the foundation 1) and on which the lower portion of the reinforcing fiber material bundle Fb is provided.
The lower protruding portion 22 has a tip end in the protruding direction bent downward, and this bent portion prevents the reinforcing fiber material bundles Fb from coming off.
The lower protrusion 22 also has guide portions 22a bent upward from both side edges closer to the main body iron plate portion than the bent portion. These guide portions 22a are portions along which the reinforcing fiber material bundles Fb extend, and the edges (corners) of the lower protrusion 22 are not in contact with the reinforcing fiber material bundles Fb, which is preferable in terms of preventing breakage of the reinforcing fiber material bundles Fb.
Furthermore, the guide portions 22a on both side edges are in contact with the main iron plate portion, so that when tension is applied to the reinforcing fiber material bundle Fb, the lower protrusion portion 22 is prevented from bending upward.

An adjuster holding portion 23 is integrally formed at the upper end of the main steel plate portion of the lower fixing hardware 21, which protrudes toward the indoor side (the opposite direction from the foundation 1) and holds an adjuster bolt 27 described later.
A through hole is formed in the center of the adjuster holding portion 23, through which the lower end of the adjuster bolt 27 passes.
The adjuster holding portion 23 has guide portions 23a bent downward from both side edges of the adjuster holding portion 23. These guide portions 23a are portions along which the reinforcing fiber material bundles Fb follow, and the edges (corners) of the adjuster holding portion 23 are not in contact with the reinforcing fiber material bundles Fb, which is preferable in terms of preventing breakage of the reinforcing fiber material bundles Fb.
Furthermore, the guide portions 23a on both side edges are in contact with the main body iron plate portion, so that when tension is applied to the reinforcing fiber material bundle Fb, the adjuster holding portion 23 can be prevented from bending downward.

The upper fixed hardware 25 is a hardware whose main body (hereinafter referred to as the main iron plate part) is a rectangular iron plate that is fixed across the base 2 and the pillar material 5 (splint 6).
A plurality of through holes 25a are formed in the main steel plate portion of the upper fixing hardware 25 at a position above the upper protrusion 26. Fixing bolts B for fixing the main steel plate portion of the upper fixing hardware 25 to the indoor side surface of the splint 6 are passed through the plurality of through holes 25a. Screw bolts are used as the fixing bolts B in this embodiment. In other words, the fixing manner of the upper fixing hardware 25 is the same as the fixing manner of the upper fixing hardware 15 in the first seismic reinforcement device 10 described above.
In this embodiment, the upper fixing hardware 25 is formed by cutting and bending a single iron plate.

An upper protrusion 26 is integrally formed at the lower end of the main iron plate portion of the upper fixing hardware 25, protruding in the same direction as the lower protrusion 22 and on which the upper portion of the reinforcing fiber material bundle Fb is provided.
The upper protruding portion 26 has a tip end in the protruding direction bent upward, and this bent portion prevents the reinforcing fiber material bundles Fb from coming off.
The upper protrusion 26 also has guide portions 26a bent downward from both side edges closer to the main body iron plate portion than the bent portion. These guide portions 26a are portions along which the reinforcing fiber material bundles Fb follow, and the edges (corners) of the upper protrusion 26 are not in contact with the reinforcing fiber material bundles Fb, which is preferable in terms of preventing breakage of the reinforcing fiber material bundles Fb.

The reinforcing fiber material bundle Fb is wound around between the lower protrusion 22 of the lower fixing metal 21 and the upper protrusion 26 of the upper fixing metal 25 .
More specifically, the bundle of reinforcing fiber material Fm before being solidified with thermoplastic resin is wound (wound) around the portion of the lower protruding portion 22 of the lower fixing hardware 21 closer to the foundation 1 than the bent portion, and the portion of the upper protruding portion 26 of the upper fixing hardware 25 closer to the base 2 than the bent portion. In short, the bundle of reinforcing fiber material Fm is wound in the same manner as the bundle of reinforcing fiber material Fm in the first seismic reinforcement device 10, and is wound in a circular shape between the lower protruding portion 22 and the upper protruding portion 26. Also, it is wound tightly to minimize slack.

In this embodiment, the bundle of reinforcing fiber material Fm is wound between the lower protrusion 22 and the upper protrusion 26, and then solidified with thermoplastic resin. When solidifying with thermoplastic resin, it is necessary to prevent unevenness from occurring in the thermoplastic resin.

The adjuster bolt 27 functions as tension applying means for applying tension to the reinforcing fiber material bundle Fb by pulling it in the length direction (vertical direction).
In this embodiment, the timing for applying tension to the reinforcing fiber material bundles Fb by the adjuster bolts 27 is after the thermoplastic resin has hardened. However, this is not limited to the above, and tension may be applied immediately before the thermoplastic resin hardens, or tension may be applied to the bundles of reinforcing fiber material Fm before they are impregnated with the thermoplastic resin.

The upper end of the adjuster bolt 27 is provided with a contact portion 27a that comes into contact with the upper protrusion 26 of the upper fixed metal part 25. This contact portion 27a has a truncated cone shape whose diameter gradually increases toward the lower surface of the upper protrusion 26, and is set so as to come into contact with the lower surface of the upper protrusion 26 over as wide an area as possible.
The contact portion 27a is disposed between the two guide portions 26a of the upper protrusion 26, and is joined and fixed to the lower surface of the upper protrusion 26 by, for example, welding, as necessary.

The lower end of the adjuster bolt 27 is passed through a through hole of the adjuster holding portion 23 of the lower fixed hardware 21, and an adjustment nut 27b is provided at the center of the adjuster bolt 27 in the longitudinal direction.
By rotating the adjustment nut 27b in one direction, the adjuster bolt 27 moves upward, and the upper protrusion 26 of the upper fixing hardware 25 can be pushed upward slightly. This allows tension to be applied to the reinforcing fiber material bundles Fb, and the unity between the foundation 1 and the pillar material 5 can be improved.

[Regarding the third earthquake-resistance reinforcement device]
As shown in Figure 7, the third earthquake-resistant reinforcement device 30 in this embodiment comprises a lower fixing hardware 31 having a lower protrusion 32, an upper fixing hardware 35 having an upper protrusion 36, and a reinforcing fiber material bundle Fb.

The lower fixed hardware 31 is a hardware whose main body (hereinafter referred to as the main iron plate part) is a steel plate fixed to the inner surface of the foundation 1 (raised portion).
A plurality of fixed bolts (not shown) are provided in advance on the inner surface of the foundation 1, protruding from the inner surface of the foundation 1 toward the indoor side (the opposite direction to the outdoors). A plurality of through holes 31a are formed in the main body iron plate part of the lower fixing hardware 31 below the lower protruding part 32, through which the plurality of fixed bolts are passed.
When fixing the lower fixing hardware 31 to the inner surface of the foundation 1, a cap nut N is used, similar to the lower fixing hardware 21 in the second earthquake-resistant reinforcement device 20 described above.
In this embodiment, the lower fixing metal member 31 is formed by cutting and bending a single iron plate. The lower protrusion 32 may be welded to the main iron plate portion.
In addition, in this embodiment, the fixed bolt and the cap nut N are used to fix the lower fixing hardware 31, but this is not limited to this, and post-installed anchor bolts or other fixing means may be used. In short, as long as the lower fixing hardware 31 can be firmly fixed to the foundation 1, the fixing means is not particularly limited.

A lower protrusion 32, on which the lower portion of the reinforcing fiber material bundles Fb is provided, is integrally formed with the upper end of the main steel plate portion of the lower fixing hardware 31, which protrudes toward the indoor side (the opposite direction from the foundation 1). The lower protrusion 32 includes a box-shaped retaining portion 32a, a screw portion 32b which passes through a through hole formed in the retaining portion 32a, and a nut portion 32c which is provided at the lower end of the screw portion 32b.
The retaining portion 32a has a horizontal plate portion in which the through hole through which the screw portion 32b is inserted is formed, a wall of the horizontal plate portion on the foundation 1 side, and walls on both sides of the wall, and is formed in a box shape that is open to the indoor side and downward. The retaining portion 32a is preferably formed in such a box shape because it has higher rigidity than, for example, a structure composed of only the horizontal plate portion.
The threaded portion 32b is constituted by a cylindrical set screw having a through hole formed along the central axis thereof. The lower end of the reinforcing fiber material bundle Fb is passed through the through hole of the threaded portion 32b.
The nut portion 32c is screwed onto the lower end of the threaded portion 32b in a state in which the nut portion 32c is in contact with the lower surface of the horizontal plate portion of the holding portion 32a.

The upper fixed hardware 35 is a hardware whose main body (hereinafter referred to as the main iron plate part) is a rectangular iron plate that is fixed across the base 2 and the pillar material 5 (splint 6).
A plurality of through holes 35a are formed in the main steel plate portion of the upper fixing hardware 35 at a position above the upper protrusion 36. Fixing bolts B for fixing the main steel plate portion of the upper fixing hardware 35 to the indoor side surface of the splint 6 are passed through the plurality of through holes 35a. Screw bolts are used as the fixing bolts B in this embodiment. In other words, the fixing manner of the upper fixing hardware 35 is the same as the fixing manner of the upper fixing hardware 15 in the first seismic reinforcement device 10 described above.
In this embodiment, the upper fixing metal member 35 is formed by cutting and bending a single iron plate. The upper protrusion 36 may be welded to the main iron plate portion.

An upper protrusion 36 is integrally formed at the lower end of the main body iron plate portion of the upper fixing hardware 35, protruding in the same direction as the lower protrusion 32 and on which the upper portion of the reinforcing fiber material bundle Fb is provided. The upper protrusion 36 includes a box-shaped holding portion 36a, a screw portion 36b that passes through a through hole formed in the holding portion 36a, and a nut portion 36c that is provided at the upper end of the screw portion 36b. In other words, the upper protrusion 36 is configured symmetrically to the lower protrusion 32 of the lower fixing hardware 31.
The retaining portion 36a has a horizontal plate portion in which the above-mentioned through hole is formed through which the screw portion 36b is passed, a wall on the foundation 1 side of the horizontal plate portion, and walls on both sides of that, and is formed in a box shape that is open to the indoor side and upward.
The threaded portion 36b is constituted by a cylindrical set screw having a through hole formed along the central axis thereof. The upper end portion of the reinforcing fiber material bundle Fb is passed through the through hole of the threaded portion 36b.
The nut portion 36c is screwed onto the upper end of the threaded portion 36b in a state in which the nut portion 36c is in contact with the upper surface of the horizontal plate portion of the holding portion 36a.

The reinforcing fiber material bundle Fb has its lower end held by a retaining portion 32a on the lower protrusion 32 of the lower fixing hardware 31, and its upper end held by a retaining portion 36a on the upper protrusion 36 of the upper fixing hardware 35.
More specifically, the lower and upper ends of the reinforcing fiber material bundles Fb are provided with anti-slip portions 33, 37. In this embodiment, the anti-slip portions 33, 37 are configured to grip and hold the ends of the reinforcing fiber material bundles Fb, and are set to have a larger diameter than the diameter of the through holes of the threaded portions 32b, 36b.
The reinforcing fiber material bundles Fb have their lower ends, at the portions above the retaining portion 33, held by the retaining portion 32a of the lower protrusion 32. That is, the lower ends of the reinforcing fiber material bundles Fb are passed through a through hole of the screw portion 32b, and are then gripped and held by the retaining portion 33. The screw portion 32b is passed through a through hole formed in the horizontal plate portion of the retaining portion 32a, and is maintained in a state where it is passed through the through hole of the retaining portion 32a by the nut portion 32c.
On the other hand, the upper end of the reinforcing fiber material bundle Fb, at a portion below the retaining portion 37, is held by the retaining portion 36a of the upper protrusion 36. That is, the upper end of the reinforcing fiber material bundle Fb is passed through a through hole of the screw portion 36b, and is then gripped and held by the retaining portion 37. In addition, the screw portion 36b is passed through a through hole formed in the horizontal plate portion of the retaining portion 36a, and is maintained in a state where it is passed through the through hole of the retaining portion 36a by the nut portion 36c.

In this embodiment, the bundle of reinforcing fiber material Fm is bridged between the lower protrusion 32 and the upper protrusion 36, and then solidified with thermoplastic resin. When solidifying with thermoplastic resin, it is necessary to prevent unevenness from occurring in the thermoplastic resin.

The screw portions 32b, 36b and the nut portions 32c, 36c of the lower protrusion 32 and the upper protrusion 36 function as tension applying means for pulling the reinforcing fiber material bundle Fb in the lengthwise direction (vertical direction) to apply tension.
That is, by rotating the nut portion 32c in one direction, the threaded portion 32b moves downward relative to the holding portion 32a, and by rotating the nut portion 32c in the other direction, the threaded portion 32b moves upward relative to the holding portion 32a. Also, by rotating the nut portion 36c in one direction, the threaded portion 36b moves downward relative to the holding portion 36a, and by rotating the nut portion 36c in the other direction, the threaded portion 36b moves upward relative to the holding portion 36a.
As described above, the retaining portions 33, 37 provided at the lower and upper ends of the reinforcing fiber material bundle Fb are set to have a larger diameter than the through holes of the screw portions 32b, 36b. Therefore, by rotating the nut portions 32c, 36c in one direction or the other to move the screw portions 32b, 36b in the vertical direction, the reinforcing fiber material bundle Fb can be pulled in the length direction (vertical direction) to apply tension, or conversely, to release the tension. By applying tension to the reinforcing fiber material bundle Fb, the integrity of the foundation 1 and the column material 5 can be improved.
In this embodiment, the timing at which tension is applied to the reinforcing fiber material bundles Fb by the tension applying means is after the thermoplastic resin has hardened, but is not limited to this, and tension may be applied immediately before the thermoplastic resin hardens, or to the bundles of reinforcing fiber material Fm before the thermoplastic resin is added.

In this embodiment, the anti-slip portions 33, 37 are provided as a single component at the lower and upper ends of the reinforcing fiber material bundles Fb, as described above, but this is not limited to this, and a knot formed by tying the lower and upper ends of the reinforcing fiber material bundles Fb together may also function as the anti-slip portions 33, 37.
Furthermore, in order to prevent the reinforcing fiber material bundles Fb from slipping out of the through holes of the threaded portions 32b, 36b, the retaining portions 33, 37 are reliably and firmly provided in a factory, etc. That is, the bundles of reinforcing fiber material Fm before being impregnated with the thermoplastic resin are produced in a factory so that they are provided with the threaded portions 32b, 36b and the retaining portions 33, 37 (so-called nunchaku type).

[About the fourth earthquake-resistance reinforcement device]
As shown in Figure 8, the fourth earthquake-resistant reinforcement device 40 in this embodiment comprises a lower fixing hardware 41 having a lower protrusion 42, an upper fixing hardware 45 having an upper protrusion 46, and a reinforcing fiber material bundle Fb.

The lower fixed hardware 41 is a hardware whose main body (hereinafter referred to as the main iron plate part) is a steel plate fixed to the inner surface of the foundation 1 (raised portion).
A plurality of fixed bolts (not shown) are provided in advance on the inner surface of the foundation 1, protruding from the inner surface of the foundation 1 toward the indoor side (the opposite direction to the outdoors). A plurality of through holes 41a are formed in the main body iron plate part of the lower fixing hardware 41 below the lower protruding part 42, through which the plurality of fixed bolts are passed.
When fixing the lower fixing hardware 41 to the inner surface of the foundation 1, a cap nut N is used, similar to the lower fixing hardware 21 in the second earthquake-resistant reinforcement device 20 described above.
In this embodiment, the lower fixing hardware 41 is formed by cutting or bending a single iron plate. The lower protrusion 42 may be welded to the main iron plate portion. In other words, the lower fixing hardware 42 may be formed by welding multiple iron plates together.
In addition, in this embodiment, the fixed bolt and the cap nut N are used to fix the lower fixing hardware 41, but this is not limited to this, and a post-installed anchor bolt or other fixing means may be used. In short, as long as the lower fixing hardware 41 can be firmly fixed to the foundation 1, the fixing means is not particularly limited.

A lower protrusion 42 on which the lower portion of the reinforcing fiber material bundle Fb is provided is integrally formed at the upper end of the main steel plate portion of the lower fixing hardware 41, protruding toward the indoor side (the opposite direction from the foundation 1). The lower protrusion 42 includes a pulley 42a around which the lower end of the reinforcing fiber material bundle Fb is wound, and a shaft holder 42b that holds the rotating shaft of the pulley 42a.
The pulley 42a has a rotating shaft portion and flanges provided at both ends of the rotating shaft portion in the longitudinal direction. The pulley 42a can be rotated by a rotating jig (not shown) for rotating the rotating shaft portion.
The shaft holding portion 42b is a plate-shaped portion that protrudes toward the indoor side from both side edges of the upper end of the main iron plate portion of the lower fixed hardware 41, and both shaft holding portions 42b have a through hole formed therein through which the rotating shaft portion of the pulley 42a is passed and held.
Although not shown, a rotation stop pin can be inserted between at least one of the shaft holders 42b and the pulley 42a to stop the rotation of the pulley 42a.
Furthermore, the pulley 42a has a rotating shaft portion and a flange, but the flange may be omitted.

The upper fixed hardware 45 is a hardware whose main body (hereinafter referred to as the main iron plate part) is a rectangular iron plate that is fixed across the base 2 and the pillar material 5 (splint 6).
A plurality of through holes 45a are formed in the main iron plate portion of the upper fixing hardware 45 at a position above the upper protrusion 46. Fixing bolts B for fixing the main iron plate portion of the upper fixing hardware 45 to the indoor side surface of the splint 6 are passed through the plurality of through holes 45a. Screw bolts are used as the fixing bolts B in this embodiment. In other words, the fixing manner of the upper fixing hardware 45 is the same as the fixing manner of the upper fixing hardware 15 in the first seismic reinforcement device 10 described above.
In this embodiment, the upper fixing hardware 45 is formed by cutting or bending a single iron plate. The upper protrusion 46 may be welded to the main iron plate portion. In other words, the upper fixing hardware 45 may be formed by welding multiple iron plates together.

An upper protrusion 46 on which the upper portion of the reinforcing fiber material bundle Fb is provided is integrally formed at the lower end of the main iron plate portion of the upper fixing hardware 45, protruding in the same direction as the lower protrusion 42. The upper protrusion 46 includes a pulley 46a around which the upper end of the reinforcing fiber material bundle Fb is wound, and a shaft holding portion 46b that holds the rotating shaft of the pulley 46a.
The configurations of the pulley 46a and the shaft holder 46b in the upper protrusion 46 are the same as the configurations of the pulley 42a and the shaft holder 42b in the lower protrusion 42 described above.

As shown in Figures 8 and 9, the reinforcing fiber material bundle Fb has its lower end wound and held around the lower protrusion 42 of the lower fixing hardware 41, and its upper end wound and held around the upper protrusion 46 of the upper fixing hardware 45.
More specifically, the lower end of the reinforcing fiber material bundle Fb is wound around the pulley 42a of the lower protrusion 42. The upper end of the reinforcing fiber material bundle Fb is wound around the pulley 46a of the upper protrusion 46. The rotation of the pulleys 42a, 46a can be stopped by a rotation stop pin (not shown). Therefore, the lower end of the reinforcing fiber material bundle Fb can be maintained wound around the pulley 42a of the lower protrusion 42, and the upper end of the reinforcing fiber material bundle Fb can be maintained wound around the pulley 46a of the upper protrusion 46.

In this embodiment, the bundle of reinforcing fiber material Fm is bridged between the lower protrusion 32 and the upper protrusion 36, and then solidified with thermoplastic resin. When solidifying with thermoplastic resin, it is necessary to prevent unevenness from occurring in the thermoplastic resin.

The pulleys 42a, 46a in the lower protrusion 42 and the upper protrusion 46 function as tension applying means for pulling the reinforcing fiber material bundles Fb in the length direction (vertical direction) to apply tension thereto.
That is, with the lower end of the reinforcing fiber material bundle Fb wound around the pulley 42a of the lower protrusion 42 and the upper end of the reinforcing fiber material bundle Fb wound around the pulley 46a of the upper protrusion 46, tension can be applied to the reinforcing fiber material bundle Fb by rotating one of the pulleys 42a (46a) with a rotating jig. At this time, the other pulley 46a (42a) is prevented from rotating by a rotation stop pin.
Then, after one of the pulleys 42a (46a) is rotated with a rotating jig to apply tension, the other pulley 42a (46a) is also prevented from rotating by a rotation stop pin, so that the tensioned state of the reinforcing fiber material bundle Fb can be maintained.
In addition, after the fibers have hardened, the rotation-stop pins can be removed to allow the reinforcing fiber material bundles Fb to rotate, so that the bundles can bear only tensile forces without bearing bending moments during an earthquake, thereby allowing the reinforcing fiber material bundles Fb to exert their maximum tensile strength.
In this embodiment, the timing at which tension is applied to the reinforcing fiber material bundles Fb by the tension applying means is before the bundles of reinforcing fiber material Fm are impregnated with the thermoplastic resin.

The first seismic reinforcement device 10, the second seismic reinforcement device 20, the third seismic reinforcement device 30, and the fourth seismic reinforcement device 40 described above may be used in combination as described above, or may be adopted to a building by type. When adopting to a building by type, it is preferable to select the type of seismic reinforcement device to be adopted to a building by considering whether tension is applied to the reinforcing fiber material bundle Fb, if tension is applied, the timing of application (before or after the thermoplastic resin hardens), how much it will cost to adopt to the building, etc.
It is also possible to combine the upper end or the lower end with the third seismic reinforcement device 30 and the other end with the fourth seismic reinforcement device 40. In this case, tension is applied to the reinforcing fiber material bundles Fb after the bundles of reinforcing fiber material Fm are impregnated with the thermoplastic resin.

The wooden building in this embodiment is constructed using a conventional frame construction method, but is not limited to this and may be constructed using a wall construction method, a two-by-four construction method, or the like. In either construction method, a foundation 1 is used, and a superstructure that constitutes the building's framework is provided on top of the foundation 1. Strictly speaking, the configuration of the superstructure differs for each construction method, but in either construction method, a vertically long material equivalent to the column material 5 in this embodiment is used. Therefore, the first seismic reinforcement device 10, the second seismic reinforcement device 20, the third seismic reinforcement device 30, and the fourth seismic reinforcement device 40 described above can be appropriately used in buildings constructed using any construction method.

In addition, in this embodiment, the first seismic reinforcement device 10, the second seismic reinforcement device 20, the third seismic reinforcement device 30, and the fourth seismic reinforcement device 40 are fixed to the indoor side when fixed to the foundation 1 or the pillar material 5 (splint 6), but they may also be fixed to the outdoor side.

According to this embodiment, the reinforcing fiber material bundles Fb are provided between the lower fixing hardware 11-41 and the upper fixing hardware 15-45 to connect the lower fixing hardware 11-41 and the upper fixing hardware 15-45, the lower portions of the reinforcing fiber material bundles Fb are provided on the lower protrusions 12-42 that protrude laterally from the lower fixing hardware 11-41, and the upper portions of the reinforcing fiber material bundles are provided on the upper protrusions 16-46 that protrude in the same direction as the lower protrusions 12-42 from the upper fixing hardware 15-45, so that it is not necessary to adhere the reinforcing fiber material bundles Fb to any of the foundation 1, the base 2, and the pillar material 5. In other words, even if a step occurs between the foundation 1 and the pillar material 5, for example, the reinforcing fiber material bundles Fb can integrate the foundation 1 and the pillar material 5. Therefore, regardless of whether there is a step or not, earthquake resistance reinforcement can be performed by integrating the foundation 1 and the pillars 5 of the building, so that the method is highly flexible and versatile when applied to buildings.
Furthermore, since the reinforcing fiber material bundles Fb do not need to be attached to any of the foundation 1, the base 2, and the pillar material 5, they do not need to be formed into a strip shape and can be used as bundles. This allows earthquake-resistant reinforcement to be performed at low cost.

In addition, the reinforcing fiber material bundles Fb are made of carbon fibers, each of which is lightweight and strong, and when bundled together, they have sufficient strength to be used as a seismic reinforcement material. In addition, the bundles of reinforcing fiber material Fm are solidified with thermoplastic resin, allowing the building foundation 1 and pillar material 5 to be firmly integrated without unnecessarily expanding or contracting or unraveling.

In addition, the reinforcing fiber material bundle Fb is wound around between the lower protrusions 12, 22 of the lower fixed metal fittings 11, 21 and the upper protrusions 16, 26 of the upper fixed metal fittings 15, 25, so that the lower fixed metal fittings 11, 21 and the upper fixed metal fittings 15, 25 can be securely connected by the reinforcing fiber material bundle Fb with a simple structure. This allows earthquake-resistance reinforcement to be performed at low cost, and construction related to earthquake-resistance reinforcement can be easily carried out.

In addition, the reinforcing fiber material bundle Fb has its lower end portion above the retaining portion 33 held by the retaining portion 32a of the lower protrusion 32, and its upper end portion below the retaining portion 37 held by the retaining portion 36a of the upper protrusion 36. This prevents the reinforcing fiber material bundle Fb from slipping out of the retaining portion 32a of the lower protrusion 32 or the retaining portion 36a of the upper protrusion 36, and minimizes the length of the reinforcing fiber material bundle Fb. This allows the reinforcing fiber material bundle Fb to reliably connect the lower fixing hardware 31 and the upper fixing hardware 35, allowing for low-cost seismic reinforcement.

In addition, the lower end of the reinforcing fiber material bundle Fb is wound and held around the lower protrusion 42 of the lower fixed metal fitting 41, and the upper end is wound and held around the upper protrusion 46 of the upper fixed metal fitting 45. This allows for a simple structure and ensures that the lower fixed metal fitting 41 and the upper fixed metal fitting 45 are securely connected by the reinforcing fiber material bundle Fb while minimizing the length of the reinforcing fiber material bundle Fb. This allows for low-cost earthquake-resistance reinforcement and makes construction related to earthquake-resistance reinforcement easy.

The structure further includes a tension applying means for pulling the reinforcing fiber material bundles Fb in the longitudinal direction to apply tension. By applying tension to the reinforcing fiber material bundles Fb using the tension applying means, the unity between the foundation 1 and the column material 5 can be improved, and earthquake-resistant reinforcement can be performed more firmly.

Even if structural constraints arise that make it difficult to fasten the upper fixing hardware 15-45 to the pillar 5, for example because the pillar 5 interferes with other components, the indoor side of the pillar 5 is flush with the side of the pillar 5, and a dimension adjustment material (splint 6) that lengthens the width at the lower end of the pillar 5 is fixed integrally to the lower end of the pillar 5. The upper fixing hardware 15-45 is fixed across the base 2 and the dimension adjustment material fixed integrally to the lower end of the pillar 5. This means that the upper fixing hardware 15-45 can be fixed to the pillar 5 without being hindered by structural constraints, and the seismic reinforcement devices 10-40 can be attached securely and firmly to the building's framework.

[Reference Example]
Reference examples will be described below. In the following reference examples, elements common to the above embodiment will be denoted by the same reference symbols, and descriptions thereof will be omitted or simplified. The reference examples given below may be combined with the above embodiment as far as possible.

In the above embodiment, the reinforcing fiber material bundle Fb is simply a bundle of a large number of reinforcing fiber materials Fm, as shown in Figure 3 (a), but in this reference example, reinforcing fiber material bundles of other forms are adopted.
That is, as shown in FIG. 3(b), after the reinforcing fiber material Fm is woven, it may simply be bundled, or it may be twisted in a special way like a rope, or it may be braided into a string-like shape.

For example, a connecting strip made of a reinforcing fiber material as described in Patent Document 1 above needs to be adhered closely to both the foundation and the upper structure in order to integrate the two. If, for example, a step occurs between the foundation and the upper structure, it may be difficult to use a connecting strip made of a reinforcing fiber material.
In contrast, by using the reinforcing fiber material bundles in this reference example, there is no need to adhere the bonding strip made of reinforcing fiber material as in Patent Document 1 to either the foundation or the upper structure, making it highly flexible and versatile when used in buildings.

1 Foundation 2 Base 5 Pillar 6 Splint 6a Notch 10 First earthquake-resistant reinforcement device 11 Lower fixed metal 12 Lower protrusion 15 Upper fixed metal 16 Upper protrusion 20 Second earthquake-resistant reinforcement device 21 Lower fixed metal 22 Lower protrusion 23 Adjuster retaining portion 25 Upper fixed metal 26 Upper protrusion 27 Adjuster bolt 30 Third earthquake-resistant reinforcement device 31 Lower fixed metal 32 Lower protrusion 32a Retaining portion 32b Screw portion 32c Nut portion 33 Anti-slip portion 35 Upper fixed metal 36 Upper protrusion 36a Retaining portion 36b Screw portion 36c Nut portion 37 Anti-slip portion 40 Fourth earthquake-resistant reinforcement device 41 Lower fixed metal 42 Lower protrusion 42a Pulley 45 Upper fixed metal 46 Upper protrusion 46a Pulley Fb Reinforcing fiber material bundle

Claims (6)

A seismic reinforcement device that integrates a foundation and an upper structure provided on the foundation,
A lower fixing hardware fixed to a side surface of the foundation;
An upper fixing hardware fixed to the upper structure;
a reinforcing fiber material bundle provided between the lower fixing hardware and the upper fixing hardware to connect the lower fixing hardware and the upper fixing hardware,
The reinforcing fiber material bundle is formed by solidifying a bundle of reinforcing fiber material made of carbon fiber with a thermoplastic resin,
the lower fixing hardware has a lower protruding portion protruding laterally and on which a lower portion of the reinforcing fiber material bundle is provided,
the upper fixing hardware has an upper protruding portion protruding in the same direction as the lower protruding portion and on which an upper portion of the reinforcing fiber material bundle is provided,
the lower protrusion has a lower holding portion that holds a lower end portion of the reinforcing fiber material bundle,
the upper protrusion has an upper holding portion that holds an upper end portion of the reinforcing fiber material bundle,
The reinforcing fiber material bundles are provided at their lower and upper ends with anti-slip portions,
This earthquake-resistant reinforcement device is characterized in that the lower end of the reinforcing fiber material bundle is above the anti-slip portion and is held by the lower retaining portion of the lower protrusion, and the upper end is below the anti-slip portion and is held by the upper retaining portion of the upper protrusion. The seismic reinforcement device according to claim 1,
The lower protrusion is
The lower holding portion has a screw hole formed along the vertical direction;
a lower screw portion having a through hole formed along a central axis, the through hole being inserted through a lower end of the bundle of reinforcing fiber material and being inserted through the screw hole in the lower holding portion;
a lower nut portion into which a lower end portion of the lower screw portion is screwed in a state of contacting a lower surface of the lower holding portion,
the retaining portion provided at the lower end of the reinforcing fiber material bundle is located at the lower end of the lower thread portion,
The upper protrusion is
The upper holding portion has a screw hole formed along the vertical direction;
an upper threaded portion having a through hole formed along a central axis, an upper end portion of the reinforcing fiber material bundle being passed through the through hole, and the upper threaded portion being passed through the threaded hole in the upper holding portion;
an upper nut portion into which an upper end portion of the upper threaded portion is screwed in a state of contacting an upper surface of the upper holding portion,
The seismic reinforcement device according to claim 1, wherein the anti-slip portion provided at the upper end of the reinforcing fiber material bundle is located at the upper end of the upper threaded portion. The seismic reinforcement device according to claim 1 or 2 ,
4. A seismic reinforcement device comprising: a tension applying means for applying tension to the reinforcing fiber material bundles by pulling them in the longitudinal direction. A mounting structure for a seismic reinforcement device according to any one of claims 1 to 3 , wherein the seismic reinforcement device is mounted on a skeleton of a building including the foundation and the upper structure,
The upper structure includes a base provided on the foundation and a pillar member provided on the base,
A dimension adjusting member is fixed integrally to the lower end of the pillar, the side surface of which is flush with the side surface of the pillar and which extends the width of the lower end of the pillar;
The lower fixing hardware is fixed to a side surface of the foundation,
An installation structure for an earthquake-resistant reinforcement device, characterized in that the upper fixing hardware is fixed across the base and the dimension adjustment material which is integrally fixed to the lower end of the pillar material. A method for integrating the foundation and the upper structure by using the seismic reinforcement device according to claim 1 or 2 , comprising the steps of:
A seismic reinforcement method characterized in that the bundle of reinforcing fiber material is spanned between the lower protrusion of the lower fixing hardware and the upper protrusion of the upper fixing hardware, and then solidified with the thermoplastic resin to form the bundle of reinforcing fiber material. A method for integrating the foundation and the upper structure by using the seismic reinforcement device according to claim 3 , comprising the steps of:
The bundle of reinforcing fiber material is laid between the lower protrusion of the lower fixing metal and the upper protrusion of the upper fixing metal, and then solidified with the thermoplastic resin to form the bundle of reinforcing fiber material;
A method for earthquake-resistant reinforcement, characterized in that after the thermoplastic resin has hardened, the reinforcing fiber material bundles are pulled in the longitudinal direction by the tension applying means to apply tension thereto.

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