JP7798959B2 - Earthquake-resistant reinforcement device, earthquake-resistant reinforcement device mounting structure, and earthquake-resistant reinforcement method - Google Patents

Description

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

In conventional wooden buildings, earthquake-resistant reinforcement methods using reinforcing fiber materials such as aramid fiber or carbon fiber are used to join the foundation to the superstructure, such as the base and columns built on top of the foundation. In Patent Document 1, connecting bands made of reinforcing fiber materials such as aramid fiber or carbon fiber are installed from the foundation to the columns of the superstructure, with the upper part pressed down to the columns with metal plates and the lower part pressed down to the foundation with reinforcing bands, preventing the superstructure from shifting or detaching from the foundation due to vertical shaking in, for example, a shallow earthquake.

Japanese Patent Application Laid-Open No. 2008-002179

However, conventional connecting strips made of reinforcing fiber material need to be tightly attached to both the foundation and the upper structure in order to integrate them, and if, for example, a step occurs between the foundation and the upper structure, it can be difficult to use connecting strips made of reinforcing fiber material.
Another problem is that it is costly to form the reinforcing fiber material into a strip shape 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 that is flexible and adaptable for use in buildings, while also being low-cost.

The invention described in claim 1 is, for example, as shown in Figures 1 to 3, 8, and 9, a seismic reinforcement device 40 that integrates a foundation 1 and an upper structure (base 2, pillars 5) provided on the foundation 1,
A lower fixing hardware 41 fixed to the side surface of the foundation 1;
An upper fixing hardware 45 fixed to the upper structure and disposed directly above the lower fixing hardware 41;
a reinforcing fiber material bundle Fb provided between the lower fixing hardware 41 and the upper fixing hardware 45 to connect two points of the lower fixing hardware 41 and the upper fixing hardware 45;
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 41 has a lower protruding portion 42 that protrudes laterally and on which a lower portion of the reinforcing fiber material bundle Fb is provided,
The upper fixing hardware 45 has an upper protruding portion 46 that protrudes in the same direction as the lower protruding portion 42 and on which an upper portion of the reinforcing fiber material bundle Fb is provided,
The reinforcing fiber material bundle Fb has a lower end portion wound around and held by the lower protrusion 42 of the lower fixing hardware 41, and an upper end portion wound around and held by the upper protrusion 46 of the upper fixing hardware 45 ,
The lower protrusion 42 is
a lower pulley 42a around which the lower end of the reinforcing fiber material bundle Fb is wound;
a lower shaft holding portion 42b that holds both longitudinal ends of the rotary shaft portion of the lower pulley 42a,
The upper protrusion 46 is
an upper pulley 46a around which the upper end of the reinforcing fiber material bundle Fb is wound;
and an upper shaft holder 46b that holds both longitudinal ends of the rotary shaft of the upper pulley 46a .

According to the first aspect of the present invention, the reinforcing fiber material bundles Fb are provided between the lower fixing hardware 41 and the upper fixing hardware 45, connecting the lower fixing hardware 41 and the upper fixing hardware 45 at two points . The lower portion of the reinforcing fiber material bundles Fb is provided on the lower protrusion 42 that protrudes laterally from the lower fixing hardware 41, and the upper portion of the reinforcing fiber material bundles Fb is provided on the upper protrusion 46 that protrudes in the same direction as the lower protrusion 42 from the upper fixing hardware 45. This eliminates the need to tightly attach the reinforcing fiber material bundles Fb to either the foundation 1 or the superstructure. In other words, even if there is a step between the foundation 1 and the superstructure, the reinforcing fiber material bundles Fb can integrate the foundation 1 and the superstructure. Therefore, regardless of the presence or absence of a step, the foundation 1 and the superstructure can be integrated to perform seismic reinforcement, providing excellent flexibility and adaptability for use in buildings.
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, thereby enabling earthquake-resistant reinforcement at low cost.
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 an earthquake-resistant 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 unnecessary stretching or unraveling.
Furthermore, the lower end of the reinforcing fiber material bundle Fb is wound around and held by the lower protrusion 42 of the lower fixing metal 41, and the upper end is wound around and held by the upper protrusion 46 of the upper fixing metal 45, so that the structure is simple and the length of the reinforcing fiber material bundle Fb can be kept as small as possible while the lower fixing metal 41 and the upper fixing metal 45 can be reliably connected by the reinforcing fiber material bundle Fb. This allows for low-cost earthquake-resistant reinforcement and also makes construction related to earthquake-resistant reinforcement easy.

The invention described in claim 2 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 ,
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 2 , a tension applying means is further provided 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 upper structure can be enhanced, and more robust earthquake-resistant reinforcement can be achieved.

The invention described in claim 3 is a mounting structure for a seismic reinforcement device 40, which integrates a foundation 1 and an upper structure (base 2, pillars 5) provided on the foundation 1, and is mounted on a skeleton of a building including the foundation 1 and the upper structure, as shown in, for example, Figures 1, 2, 8, and 9,
The earthquake-resistant reinforcement device 40 is
A lower fixing hardware 41 fixed to the side surface of the foundation 1;
An upper fixing hardware 45 fixed to the upper structure portion;
and a reinforcing fiber material bundle Fb provided between the lower fixing hardware 41 and the upper fixing hardware 45 to connect the lower fixing hardware 41 and the upper fixing hardware 45,
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 41 has a lower protruding portion 42 that protrudes laterally and on which a lower portion of the reinforcing fiber material bundle Fb is provided,
The upper fixing hardware 45 has an upper protruding portion 46 that protrudes in the same direction as the lower protruding portion 42 and on which an upper portion of the reinforcing fiber material bundle Fb is provided,
The reinforcing fiber material bundle Fb has a lower end portion wound around and held by the lower protrusion 42 of the lower fixing hardware 41, and an upper end portion wound around and held by the upper protrusion 46 of the upper fixing hardware 45,
The upper structure includes a base 2 provided on the foundation 1 and a column member 5 provided on the base 2,
A dimension adjusting member (splint 6) is integrally fixed to the lower end of the pillar 5, the side surface of which is flush with the side surface of the pillar 5 and which extends the width dimension at the lower end of the pillar 5;
The lower fixing hardware 41 is fixed to the side surface of the foundation 1,
The upper fixing hardware 45 is characterized in that it is fixed across the base 2 and the dimension adjustment material that is integrally fixed to the lower end of the pillar material 5.

According to the third aspect of the present invention, the reinforcing fiber material bundles Fb are provided between the lower fixing hardware 41 and the upper fixing hardware 45, connecting the lower fixing hardware 41 and the upper fixing hardware 45 at two points. The lower portion of the reinforcing fiber material bundles Fb is provided on the lower protrusion 42 that protrudes laterally from the lower fixing hardware 41, and the upper portion of the reinforcing fiber material bundles Fb is provided on the upper protrusion 46 that protrudes in the same direction as the lower protrusion 42 from the upper fixing hardware 45. This eliminates the need to tightly attach the reinforcing fiber material bundles Fb to either the foundation 1 or the superstructure. In other words, even if there is a step between the foundation 1 and the superstructure, the reinforcing fiber material bundles Fb can integrate the foundation 1 and the superstructure. Therefore, regardless of the presence or absence of a step, the foundation 1 and the superstructure can be integrated to perform seismic reinforcement, providing excellent flexibility and adaptability when used in buildings.
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, thereby enabling earthquake-resistant reinforcement at low cost.
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 an earthquake-resistant 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 unnecessary stretching or unraveling.
Furthermore, the lower end of the reinforcing fiber material bundle Fb is wound around and held by the lower protrusion 42 of the lower fixing metal 41, and the upper end is wound around and held by the upper protrusion 46 of the upper fixing metal 45, so that the structure is simple and the length of the reinforcing fiber material bundle Fb can be kept as small as possible while the lower fixing metal 41 and the upper fixing metal 45 can be reliably connected by the reinforcing fiber material bundle Fb. This allows for low-cost earthquake-resistant reinforcement and also makes construction related to earthquake-resistant reinforcement easy.
Furthermore, even if structural constraints arise that make it difficult to fix the upper fixing hardware 45 to the pillar 5, for example, due to interference between the pillar 5 and other components, a dimension adjustment material (splint 6) is fixed integrally to the lower end of the pillar 5, whose side is flush with the side of the pillar 5 and which increases the width dimension at the lower end of the pillar 5, and the upper fixing hardware 45 is fixed across the base 2 and the dimension adjustment material fixed integrally to the lower end of the pillar 5, so that the upper fixing hardware 45 can be fixed to the pillar 5 without being hindered by structural constraints, and ultimately the earthquake-resistant reinforcement device 40 can be attached securely and firmly to the building's frame.

The invention described in claim 4 is a seismic reinforcement method for integrating the foundation 1 and the upper structure by using the seismic reinforcement device 40 described in claim 1 , as shown in, for example, FIGS. 1 to 3, 8, and 9,
The bundle of reinforcing fiber material Fm is laid between the lower protrusion 42 of the lower fixing hardware 41 and the upper protrusion 46 of the upper fixing hardware 45, and then solidified with the thermoplastic resin to form the bundle of reinforcing fiber material Fb.

The invention described in claim 5 is a seismic reinforcement method for integrating the foundation 1 and the upper structure by using the seismic reinforcement device 40 described in claim 2 , as shown in, for example, Figures 1 to 3, 8, and 9,
The bundle of reinforcing fiber material Fm is laid between the lower protrusion 42 of the lower fixing hardware 41 and the upper protrusion 46 of the upper fixing hardware 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.

This invention offers excellent flexibility and versatility when applied to buildings, and allows for low-cost seismic reinforcement.

FIG. 1 is a perspective view of the installation of the earthquake-resistant reinforcement device as viewed obliquely from above. FIG. 1 is a perspective view of the installation of the earthquake-resistant reinforcement device as viewed obliquely from below. 1A and 1B are diagrams illustrating the configuration of a reinforcing fiber material bundle. 3A and 3B are diagrams illustrating the configuration and installation mode of a first seismic reinforcement device. 10 is a diagram illustrating a state in which a bundle of reinforcing fiber material is wound around between a lower protruding portion and an upper protruding portion. FIG. 10A and 10B are diagrams illustrating the configuration and installation mode of a second seismic reinforcement device. 10A and 10B are diagrams illustrating the configuration and installation mode of a third seismic reinforcement device. 10A and 10B are diagrams illustrating the configuration and installation mode of a fourth earthquake-resistant reinforcement device. 10 is a diagram illustrating a state in which the lower end of the reinforcing fiber material bundle is wound around the pulley of the lower protrusion and the upper end is wound around the pulley of the upper protrusion. FIG.

Embodiments of the present invention will be described below with reference to the drawings. However, while the embodiments described below are subject to various limitations that are technically preferable for implementing the present invention, the technical scope of the present invention is not limited to the following embodiments and illustrated examples.

In each diagram, the reference numeral 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 bases 2 are provided on the foundation 1. One of the bases 2 shown in Figures 1 and 2 is formed long so as to span from the foundation 1 to another foundation (not shown).
Additionally, 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 long base 2 and the plurality of joists 3.
Although not shown, floor underlayment and floor finishing materials are layered on the upper surfaces of these 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 may include through pillars and tubular pillars as appropriate.
Between adjacent columns 5, diagonally arranged braces 7 are appropriately provided.
Although not shown, the exterior walls of the building are made up of exterior wall base materials, moisture-permeable waterproof sheets, exterior materials, etc., provided on the exterior sides of the pillars 5, and interior wall base materials, interior finishing materials, etc., provided on the interior sides. The interior of the walls is filled with heat insulating material.

In order to improve the earthquake resistance performance of the building's main structure configured as described above, earthquake-resistant reinforcement devices 10 to 40 are used to integrate the foundation 1 with the pillar material 5 installed on the base 2.
Conventionally, hold-down hardware has been attached to the joints between the foundation of a wooden building and the superstructure (for example, pillars) that are built on this foundation to prevent separation and destruction due to earthquakes, etc. However, many wooden buildings built before 2000 either do not have these 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 a building, the present invention is not limited to this and they may also be used when constructing a new building.

The seismic reinforcement devices 10-40 are fixed to the foundation 1 and the pillars 5. Meanwhile, the joists 3 are installed in a straight line between the foundation 1 and the pillars 5. As a result, the seismic reinforcement devices 10-40 and the joists 3 may interfere with each other, creating structural constraints that make it difficult to fix the seismic reinforcement devices 10-40 to the pillars 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-adjusting members that lengthen the width of the lower ends of the pillars (in the direction along the length of the base 2).
The splint 6 is fixed to the post 5 by screws, adhesive, or a combination of these, or by any other suitable method.

Furthermore, 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 both the outdoor side surface and the indoor side surface may be flush with the side surface of the pillar material 5.
Furthermore, if 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 interference between the brace 7 and the splint 6.

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 column 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 hardware 11 to 41 also has 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 hardware 15 to 45 has upper protrusions 16 to 46 that 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), but are not limited to this, and may also use carbon fiber using pitch, or aramid fiber (a polyamide fiber whose molecular skeleton is made of aromatic (benzene ring)), or may use various reinforcing fiber materials Fm in combination within the scope of possibility.
3A, the bundles of reinforcing fiber material Fm are hardened with thermoplastic resin. The timing of hardening with thermoplastic resin is either before or after tension is applied to the bundles of reinforcing fiber material Fm, and the selection of the timing differs depending on the structure of the seismic reinforcement devices 10 to 40 described below.
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 specially twisted bundle 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 undergoing, for example, a braiding or weaving process. This makes it possible to keep production costs 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 modes between the lower fixed hardware 11 to 41 and the upper fixed hardware 15 to 45 using reinforcing fiber material bundles Fb.
The first earthquake-resistant reinforcement device 10, the second earthquake-resistant reinforcement device 20, the third earthquake-resistant reinforcement device 30, and the fourth earthquake-resistant reinforcement device 40 may be used in combination for one building, as shown in Figures 1 and 2, or each type may be adopted for a building.

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

[Regarding the first earthquake-resistant 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 reinforcing fiber material bundle Fb.

The lower fixing hardware 11 is an anchor bolt that is driven into the inner surface of the foundation 1 (rising portion) and protrudes toward the indoor side (the opposite direction from the outdoors). In this embodiment, a post-installed anchor (e.g., Chemical Anchor (registered trademark)) is used, but buried anchors may also be used for new construction. The anchor bolt may also come into 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 to prevent the reinforcing fiber material bundle Fb from coming off. The nuts 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 needed. 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 by a bolt inserted into the main steel plate portion, with the 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. Note that this nut 17 may also be provided in double, as with the above-mentioned nut 13, or it 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 steel plate portion of the upper fixing hardware 15 at a position above the upper protrusion 16. Fixing bolts B for fixing the main steel 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. Screw bolts are used as the fixing bolts B in this embodiment.
That is, the main steel 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 steel plate portion may be fixed to the base 2 by 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 steel 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 hardened with 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 other words, the bundle of reinforcing fiber material Fm is wound around in a circular shape between the lower protrusion 12 and the upper protrusion 16. Furthermore, to minimize slack, the bundle is wound more tightly than in 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 experiments conducted by the applicant. The purpose of the experiments was to confirm the effects of the pin diameter, number of turns of fiber, and fiber length on the tensile strength of carbon fiber when carbon fiber is wound around a pin (lower protrusion 12, upper protrusion 16). The results of the experiments showed that when the bundle of reinforcing fiber material Fm was wound eight times, Pmax (maximum load at break) exceeded the target yield 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 ensure that the thermoplastic resin does not become uneven.

[Regarding the second earthquake-resistant 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 an iron plate fixed to the inner surface of the foundation 1 (rising part).
A plurality of fixed bolts (not shown) protruding from the inner surface of the foundation 1 toward the indoor side (the opposite direction from the outdoor side) 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 tip 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 addition, in this embodiment, the fixed bolts and cap nuts N are used to fix the lower fixing hardware 21, but this is not limited to this, and as mentioned above, post-installed anchor bolts or other fixing means may also 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, protruding 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 downwardly bent tip in the protruding direction, 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 steel plate portion than the bent portion. These guide portions 22a are portions along which the reinforcing fiber material bundles Fb follow, and the edges (corners) of the lower protrusion 22 do not come into 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 body iron plate portion, and are designed to prevent the lower protrusion portion 22 from bending upward when tension is applied to the reinforcing fiber material bundle Fb.

An adjuster holding portion 23 is integrally formed at the upper end of the main steel plate portion of the lower fixing hardware 21, protruding toward the indoor side (the opposite direction from the foundation 1) and holding an adjuster bolt 27 described below.
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 do not come into 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, and are designed to prevent the adjuster holding portion 23 from bending downward when tension is applied to the reinforcing fiber material bundle Fb.

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 steel 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 protrusion 26 has a tip end bent upward in the protruding direction, 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 steel 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 do not come into 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 hardened 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 other words, 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. Furthermore, 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 ensure that the thermoplastic resin does not become uneven.

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 at which tension is applied to the reinforcing fiber material bundles Fb by the adjuster bolts 27 is after the thermoplastic resin has hardened, but this 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 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 fixing hardware 25. This contact portion 27a has a truncated cone shape whose diameter gradually increases toward the underside of the upper protrusion 26, and is set so as to come into contact with the underside of the upper protrusion 26 over as wide an area as possible.
The contact portion 27a is accommodated between the guide portions 26a of the upper protrusion 26, and is joined and fixed to the lower surface of the upper protrusion 26 by welding, for example, as required.

The lower end of the adjuster bolt 27 is passed through the 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 is pushed up slightly. This allows tension to be applied to the reinforcing fiber material bundle Fb, thereby improving the unity between the foundation 1 and the pillar material 5.

[Regarding the third earthquake-resistant 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 an iron plate fixed to the inner surface of the foundation 1 (rising part).
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 from the outdoors). A plurality of through holes 31a are formed in the main steel plate portion of the lower fixing hardware 31 at a position below the lower protruding portion 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 hardware 31 is formed by cutting and bending a single steel plate. The lower protrusion 32 may be welded to the main steel plate portion.
In addition, in this embodiment, the fixed bolts and cap nuts 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 also 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 bundle Fb is provided, is integrally formed at the upper end of the main steel plate portion of the lower fixing hardware 31. The lower protrusion 32 protrudes indoors (away from the foundation 1) and is provided with the lower portion of the reinforcing fiber material bundle Fb. The lower protrusion 32 includes a box-shaped retaining portion 32a, a screw portion 32b that is threaded through a through-hole formed in the retaining portion 32a, and a nut portion 32c that 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 passed 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. Forming the retaining portion 32a in this box shape is preferable because it has higher rigidity than, for example, a structure composed only of a horizontal plate portion.
The threaded portion 32b is configured as a cylindrical set screw having a through hole formed along the central axis, through which the lower end of the reinforcing fiber material bundle Fb is passed.
The nut portion 32c is screwed onto the lower end of the threaded portion 32b in a state where it 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 hardware 35 is formed by cutting and bending a single steel plate. The upper protrusion 36 may be welded to the main steel plate portion.

An upper protrusion 36 is integrally formed at the lower end of the main steel 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 comprises a box-shaped retaining portion 36a, a screw portion 36b that is passed through a through-hole formed in the retaining 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 through which the screw portion 36b is passed, a wall on the foundation 1 side of this horizontal plate portion, and walls located 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 configured as a cylindrical set screw having a through hole formed along the central axis thereof, through which the upper end of the reinforcing fiber material bundle Fb is passed.
The nut portion 36c is screwed onto the upper end of the threaded portion 36b in a state where it 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 holding portion 32a on the lower protrusion 32 of the lower fixing hardware 31, and its upper end held by a holding 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 retaining portions 33, 37. In this embodiment, the retaining portions 33, 37 are configured to grip and hold the ends of the reinforcing fiber material bundles Fb, and are set to have a diameter larger than the diameter of the through holes of the threaded portions 32b, 36b.
The reinforcing fiber material bundles Fb have their lower ends held by the holding portions 32a of the lower protrusions 32 at portions above the retaining portions 33. That is, the lower ends of the reinforcing fiber material bundles Fb are passed through the through-holes of the threaded portions 32b, and are then gripped and held by the retaining portions 33. The threaded portions 32b are passed through through-holes formed in the horizontal plate portions of the retaining portions 32a, and are maintained in a state where they are passed through the through-holes of the retaining portions 32a by the nut portions 32c.
On the other hand, the upper end of the reinforcing fiber material bundle Fb, 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 then grasped and held by the retaining portion 37. Furthermore, 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 stretched 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 ensure that the thermoplastic resin does not become uneven.

The screw portions 32b, 36b and the nut portions 32c, 36c on the lower protrusion 32 and the upper protrusion 36 function as tension applying means for pulling the reinforcing fiber material bundle Fb in the longitudinal 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 bundles Fb are set to have a larger diameter than the through holes of the threaded portions 32b, 36b. Therefore, by rotating the nuts 32c, 36c in one direction or the other and moving the threaded portions 32b, 36b up and down, the reinforcing fiber material bundles Fb can be pulled in the lengthwise direction (up and down) to apply tension, or conversely, to release the tension. Thus, applying tension to the reinforcing fiber material bundles Fb can improve the integrity of the foundation 1 and the pillar material 5.
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 this is not limited thereto, 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 bundle 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 bundle 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 securely 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 shape).

[Regarding the fourth earthquake-resistant 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 body iron plate part) is an iron plate fixed to the inner surface of the foundation 1 (rising part).
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 from the outdoors). A plurality of through holes 41a are formed in the main steel plate portion of the lower fixing hardware 41 at a position below the lower protruding portion 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 steel plate. The lower protrusion 42 may be welded to the main steel plate portion. In other words, the lower fixing hardware 42 may be formed by welding multiple steel plates together.
In addition, in this embodiment, the fixed bolts and cap nuts N are used to fix the lower fixing hardware 41, but this is not limited to this, and post-installed anchor bolts or other fixing means may also 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. The lower protrusion 42 protrudes indoors (away from the foundation 1) and 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 and flanges provided at both longitudinal ends of the rotating shaft, and can be rotated by a rotation jig (not shown) for rotating the rotating shaft.
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 steel plate portion of the lower fixed hardware 41, and both shaft holding portions 42b have through holes 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, although the pulley 42a has a rotary shaft portion and a flange, 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 steel plate portion of the upper fixing hardware 45 at a position above the upper protrusion 46. Fixing bolts B for fixing the main steel 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 steel plate portion of the upper fixing hardware 45. The upper protrusion 46 protrudes in the same direction as the lower protrusion 42 and is provided with the upper portion of the reinforcing fiber material bundle Fb. 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 holder 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 wrapped around and held by the lower protrusion 42 of the lower fixing hardware 41, and its upper end wrapped around and held by 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 stretched 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 ensure that the thermoplastic resin does not become uneven.

The pulleys 42a, 46a on the lower protrusion 42 and the upper protrusion 46 function as tension applying means for pulling the reinforcing fiber material bundle Fb in the length direction (vertical direction) to apply tension.
That is, with the lower end of the reinforcing fiber material bundle Fb wound around the pulley 42a on the lower protrusion 42 and the upper end of the reinforcing fiber material bundle Fb wound around the pulley 46a on 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, thereby making it possible to maintain the tension applied to the reinforcing fiber material bundle Fb.
Furthermore, after the fibers have hardened, the rotation-stop pins can be removed to allow the fibers to rotate, so that the reinforcing fiber material bundles Fb can bear only tensile force without bearing bending moment during an earthquake, thereby maximizing the tensile strength of the reinforcing fiber material bundles Fb.
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 each type may be employed in a building separately. When each type is employed in a building separately, it is preferable to select the type of seismic reinforcement device to employ in a building by considering factors such as whether tension should be applied to the reinforcing fiber material bundles Fb, and if tension is to be applied, the timing of application (before or after the thermoplastic resin hardens), and the cost of employing the device in the building.
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 have been impregnated with the thermoplastic resin.

In addition, while the wooden building in this embodiment is constructed using the conventional frame construction method, this is not limited to this and may also be constructed using wall construction methods, two-by-four construction methods, or the like. In either construction method, a foundation 1 is used, and a superstructure that forms the building's skeleton is placed on top of the foundation 1. Strictly speaking, the configuration of the superstructure differs for each construction method, but in all construction methods, long vertical members corresponding to the column members 5 in this embodiment are used. Therefore, the first seismic reinforcement device 10, second seismic reinforcement device 20, third seismic reinforcement device 30, and fourth seismic reinforcement device 40 described above can be appropriately adopted in buildings constructed using any construction method.

In addition, in this embodiment, the first seismic reinforcement device 10, second seismic reinforcement device 20, third seismic reinforcement device 30, and fourth seismic reinforcement device 40 are fixed to the indoor side when fixed to the foundation 1 or 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, and 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. Therefore, it is not necessary to tightly attach the reinforcing fiber material bundles Fb to any of the foundation 1, the base 2, and the pillar 5. In other words, even if there is a step between the foundation 1 and the pillar 5, the reinforcing fiber material bundles Fb can integrate the foundation 1 and the pillar 5. Therefore, regardless of whether there is a step or not, earthquake-resistance reinforcement can be performed by integrating the foundation 1 and the pillar material 5 of the building, and therefore the method is excellent in flexibility and adaptability when applied to buildings.
Furthermore, since the reinforcing fiber material bundles Fb do not need to be attached to any of the foundation 1, base 2, and pillar material 5, they do not need to be formed into strips and can be used as bundles. This allows for low-cost earthquake reinforcement.

In addition, the reinforcing fiber material bundles Fb are made of carbon fiber, and each fiber of the reinforcing fiber material Fm is lightweight and strong. When bundled together, they have sufficient strength to serve as a seismic reinforcement material. Furthermore, because the bundles of reinforcing fiber material Fm are solidified with a thermoplastic resin, they can firmly integrate the building foundation 1 and pillar material 5 without unnecessary stretching or unraveling.

In addition, the reinforcing fiber material bundles Fb are wound around the lower protrusions 12, 22 of the lower fixing hardware 11, 21 and the upper protrusions 16, 26 of the upper fixing hardware 15, 25, so the lower fixing hardware 11, 21 and the upper fixing hardware 15, 25 can be securely connected by the reinforcing fiber material bundles Fb with a simple structure. This allows for low-cost earthquake reinforcement and makes construction related to earthquake reinforcement easy.

In addition, the portion of the reinforcing fiber material bundle Fb above the retaining portion 33 of the lower end is held by the retaining portion 32a of the lower protrusion 32, and the portion of the upper end below the retaining portion 37 is 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, enabling 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 fixing hardware 41, and the upper end is wound and held around the upper protrusion 46 of the upper fixing hardware 45. This allows for a simple structure and ensures that the lower fixing hardware 41 and the upper fixing hardware 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 reinforcement and makes construction related to earthquake reinforcement easy.

In addition, a tensioning means is further provided 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 tensioning means, the unity between the foundation 1 and the column material 5 can be improved, allowing for more robust earthquake-resistant reinforcement.

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

[Reference example]
Reference examples will be described below. In the following reference examples, elements common to the above-described embodiment will be denoted by the same reference symbols, and descriptions thereof will be omitted or simplified. The reference examples listed below may be combined with the above-described embodiment as much 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 Figure 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 tightly attached to both the foundation and the upper structure in order to integrate them, and if 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, if the reinforcing fiber material bundles in this reference example are used, 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 more flexible and adaptable for use in buildings.

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

Claims (5)

A seismic reinforcement device that integrates a foundation and an upper structure provided on the foundation,
A lower fixing hardware fixed to the side of the foundation;
An upper fixing hardware that is fixed to the upper structure and disposed directly above the lower fixing hardware;
a reinforcing fiber material bundle provided between the lower fixing hardware and the upper fixing hardware to connect two points of the lower fixing hardware and the upper fixing hardware,
the reinforcing fiber material bundles are formed by solidifying bundles of reinforcing fiber material made of carbon fibers with a thermoplastic resin,
the lower fixing hardware has a lower protruding portion that protrudes laterally and on which a lower portion of the reinforcing fiber material bundle is provided,
the upper fixing hardware has an upper protruding portion that protrudes in the same direction as the lower protruding portion and on which an upper portion of the reinforcing fiber material bundle is provided,
The reinforcing fiber material bundle has a lower end portion wound around and held by the lower protrusion of the lower fixing hardware, and an upper end portion wound around and held by the upper protrusion of the upper fixing hardware ,
The lower protrusion is
a lower pulley around which the lower end of the reinforcing fiber material bundle is wound;
a lower shaft holding portion that holds both longitudinal ends of the rotary shaft portion of the lower pulley,
The upper protrusion is
an upper pulley around which the upper end of the reinforcing fiber material bundle is wound;
and an upper shaft holding portion that holds both longitudinal ends of the rotating shaft portion of the upper pulley . The seismic reinforcement device according to claim 1 ,
The earthquake-resistant reinforcement device further comprises tension applying means for applying tension to the reinforcing fiber material bundles by pulling them in the longitudinal direction. An earthquake-resistant reinforcement device that integrates a foundation and an upper structure provided on the foundation is attached to a skeleton of a building including the foundation and the upper structure,
The earthquake-resistant reinforcement device includes:
A lower fixing hardware fixed to the side 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 bundles are formed by solidifying bundles of reinforcing fiber material made of carbon fibers with a thermoplastic resin,
the lower fixing hardware has a lower protruding portion that protrudes laterally and on which a lower portion of the reinforcing fiber material bundle is provided,
the upper fixing hardware has an upper protruding portion that protrudes in the same direction as the lower protruding portion and on which an upper portion of the reinforcing fiber material bundle is provided,
The reinforcing fiber material bundle has a lower end portion wound around and held by the lower protrusion of the lower fixing hardware, and an upper end portion wound around and held by the upper protrusion of the upper fixing hardware,
the upper structure includes a base provided on the foundation and a pillar provided on the base,
A dimension adjusting member is integrally fixed 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 dimension of the lower end of the pillar,
The lower fixing hardware is fixed to the side surface of the foundation,
An installation structure for an earthquake-resistant reinforcement device, characterized in that the upper fixed hardware is fixed across the base and the dimension adjustment material integrally fixed to the lower end of the column material. A seismic reinforcement method for integrating the foundation and the superstructure using the seismic reinforcement device according to claim 1 , comprising:
An earthquake-resistant 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 seismic reinforcement method for integrating the foundation and the upper structure using the seismic reinforcement device according to claim 2 , comprising:
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 tensioned by being pulled in the longitudinal direction by the tension applying means.