JP7816765B2 - Earthquake-resistant reinforced structures and buildings - Google Patents

Description

The present invention relates to earthquake-resistant reinforcement structures installed in buildings constructed using the wooden framework method or mixed-structure buildings that combine wooden framework method with other construction methods, and to buildings equipped with such structures.

In recent years, there has been an increasing need for earthquake-resistant reinforcement work on temple and shrine buildings as a precaution against natural disasters such as earthquakes.
On the other hand, many existing shrine and temple buildings are over 100 years old, and in order to preserve their value as cultural assets, it is desirable to carry out earthquake-resistant reinforcement work without damaging existing wooden structural materials such as pillars and beams.
As prior art in the technical field related to the present invention, for example, the following is known.

Patent Document 1 discloses an invention entitled "Connection device used to reinforce walls of structures, wall reinforcement method and reinforcement structure," which relates to a connection device used to reinforce walls of structures, a wall reinforcement method and reinforcement structure.
The invention disclosed in Patent Document 1 is characterized in that, in order to reinforce the walls of a structure, a connecting device having a square cylindrical shape and to be placed at the corners of the wall or adjacent to the wall beams, and a reinforcing material which is a strip-shaped sheet material are prepared, and holes corresponding to the shape of the prepared connecting device are drilled in at least the diagonally opposing corners of the wall corners of the structure where the connecting device is to be installed, or the adjacent parts of the wall beams, and the connecting device is installed in these holes, one side of the connecting device and the column or beam are wrapped with the reinforcing material, and the other side of the connecting device is used to install the reinforcing material in the form of a diagonal or horizontal member between the diagonally opposing connecting device or the horizontally opposing connecting device.
The connection device disclosed in Patent Document 1 can also be used to reinforce wooden buildings, as shown in FIGS. 5 to 7 of the document.
The use of the above-described connection device and reinforcing material disclosed in Patent Document 1 in the framework of a wooden building can prevent columns and beams from slipping out. In addition, the reinforcing material installed in the form of diagonal braces in the invention disclosed in Patent Document 1 can exert resistance to shear deformation of the framework in wooden structural materials.

Patent Document 2 discloses an invention entitled "Column Reinforcement in Wooden Buildings" that relates to a column reinforcement for increasing the earthquake resistance of wooden buildings.
The invention disclosed in Patent Document 2, when explained using the same symbols as in Figure 1 of the document, comprises an L-shaped metal band (3) configured to be installed along the intersection of intersecting pillars (1), and leaf spring bands (4, 4', 4'') interposed in a beveled shape between the L-shaped vertical side (3a) and the L-shaped horizontal side (3b) of the metal band (3), and a mating fastener (5) that embraces and covers the metal band (3) and the pillar (1), so that the vertical side (3a) and horizontal side (3b) of the L-shaped metal band (3) are tightly fixed to the pillar (1).
According to the invention disclosed in Patent Document 2 having the above configuration, the device can be easily attached to an existing wooden building, and by attaching it, the earthquake resistance of the wooden building can be improved.

Japanese Patent Application Laid-Open No. 2006-63669 Japanese Patent Application Laid-Open No. 2002-146908

In the case of the invention disclosed in the above-mentioned Patent Document 1, by adding a connection device and reinforcing material to the frame of a wooden building, it is expected that the effect of suppressing shear deformation of the frame will be achieved, but in order to ensure the above effect, it is considered necessary to install the invention between all of the pillars that make up the frame.
In other words, if the connection device and reinforcing material, which are the inventions disclosed in Patent Document 1, are installed locally between any columns that make up the framework of a wooden building, and in a part of the space between these columns that does not have a wall, there is a problem that they cannot withstand external forces that compress the space between the columns.

Furthermore, in the case of the invention disclosed in the aforementioned Patent Document 2, while it is thought that reinforcing the areas around the joints of individual pillars can prevent them from slipping out of the foundation or beam (or girder), there is still the problem that it is difficult to resist external forces that compress the spaces between pillars.

The present invention was made in response to these conventional problems, and its purpose is to provide an earthquake-resistant reinforcement structure and a building equipped with it that can be attached to wooden structural members in wooden buildings without using conventional metal fittings such as bolts or screws, can withstand external forces that act to compress the spaces between wooden structural members, and is less likely to damage the wooden structural members to which it is attached, even if such external forces are transmitted to the framework to which it is attached.

The earthquake-resistant reinforcement structure, which is a first invention for solving the above problem, comprises at least two wood structural materials, a reinforcing structure interposed between the wood structural materials, and a fixing structure for fixing the reinforcing structure to the wood structural materials, wherein the reinforcing structure forms part of the reinforcing structure and comprises a reinforcing material that is juxtaposed to the wood structural material to be installed, and the fixing structure comprises a buffer means that is interposed between the reinforcing material and the wood structural material to be installed and elastically deforms when an external force is applied, and a fixing means that is wrapped around or placed around the outside of the overlapping part of the reinforcing material, buffer means, and wood structural material to indirectly integrate them.
In the first aspect of the present invention, the reinforcing structure placed between the wooden structural members acts as a spacer, which acts to maintain the spacing between the wooden structural members against external forces that compress the spaces between the wooden structural members to which the reinforcing structure is attached, thereby preventing damage to the building.
Furthermore, the reinforcing material that constitutes the reinforcing structure has the effect of directly reinforcing the wooden structural material by being placed alongside the wooden structural material to which the reinforcing structure is attached.
Furthermore, the buffer means has the effect of elastically deforming when an external force (for example, shear force) acts on the wooden structural material from the reinforcing structure in the event of an earthquake or the like, thereby mitigating this external force.
In addition, the fixing means has the effect of indirectly fixing the reinforcing material, the shock-absorbing means and the wooden structural material that make up the reinforcing structure by bundling and integrating them together. In other words, the reinforcing material, the shock-absorbing means and the wooden structural material are in contact with the adjacent parts but are not joined to each other.
In this case, when an external force (e.g., shear force) acts on the fixed structure of the first invention due to an earthquake or the like, it is acceptable for the parts that make up the fixed structure to become misaligned with respect to each other.
This reduces the shear and tensile forces acting on the wooden structural material to which the reinforcing structure is attached, preventing the wooden structural material that makes up the fixed structure from breaking or being damaged.

The earthquake-resistant reinforcement structure of the second invention is the above-mentioned first invention, characterized in that the buffer means is a leaf spring made of titanium and having a wavy or zigzag cross-sectional shape.
The second invention having the above configuration has the same effect as the first invention. Furthermore, by using titanium leaf springs as the buffer means in the second invention, condensation does not occur on the leaf springs even when temperature differences occur at the installation location of the earthquake-resistant reinforcement structure according to the second invention. In this case, the condensation (moisture) that occurs on the leaf springs has the effect of preventing the proliferation of wood-decaying fungi. This has the effect of preventing problems such as decay and deterioration of the wooden structural material in contact with the leaf springs in the second invention.
In the second invention, the buffer means is specified as a leaf spring having a wave-like or zigzag cross section, thereby making the overall thickness of the buffer means uniform. As a result, according to the second invention, external forces can be absorbed over the entire area of the surface of the reinforcing structure where the buffer means is disposed. In this case, when an external force is transmitted to the wooden structural material via the reinforcing structure, the external force does not concentrate locally on the wooden structural material. Therefore, according to the second invention, when an external force acts on the wooden structural material via the reinforcing structure, the wooden structural material to which the external force is applied is effectively prevented from breaking or being damaged.

The third invention, an earthquake-resistant reinforcement structure, is the first or second invention described above, characterized in that it is provided with a protective means interposed between the wood-based structural material and the buffer means.
The third invention having the above configuration has the same effect as the first or second invention. Furthermore, in the third invention, when the buffer means is made of a material harder than wood or wood-based materials, the protection means has the effect of preventing damage to the surface of the wood-based structural material when the buffer means is pressed against the wood-based structural material.

The earthquake-resistant reinforcement structure according to a fourth invention is any one of the first to third inventions, characterized in that the fixing means is titanium foil.
The fourth invention has the same effect as the first to third inventions. Furthermore, the titanium foil used as the fixing means in the fourth invention indirectly fixes the reinforcing material that constitutes the reinforcing structure to the wood-based structural material, and also reinforces the overlapping portion of the wood-based structural material and the reinforcing material with the titanium foil wrapped around it.
Furthermore, in the fourth invention, by specifying the material of the fixing means to titanium, it is possible to prevent condensation from forming on the surface of the fixing means when temperature differences occur at the installation location of the earthquake-resistant reinforcement structure according to the fourth invention. In this case, it is possible to prevent the proliferation of wood-decaying fungi by utilizing the condensation (moisture) formed on the fixing means. This has the effect of preventing problems such as decay and deterioration of wood or wood-based materials, more specifically wood-based structural materials, in the parts that come into contact with the fixing means in the fourth invention.

The fifth invention, which is an earthquake-resistant reinforcement structure, is any one of the first to third inventions described above, characterized in that the fixing means is a strip-shaped sheet, band, or string made of resin fiber or carbon fiber.
The fifth invention having the above configuration has the same effect as the first to third inventions. Furthermore, the fixing means in the fifth invention, which is a strip-shaped sheet, band, or string made of resin fiber or carbon fiber, has the effect of indirectly fixing a reinforcing structure having a reinforcing material to a wood-based structural material.
Furthermore, in the fifth invention, by specifying the material of the fixing means to be resin fiber or carbon fiber, it is possible to prevent condensation on the fixing means when temperature differences occur at the installation location of the earthquake-resistant reinforcement structure according to the fifth invention. In this case, it is possible to prevent the proliferation of wood-decaying fungi by utilizing the condensation (moisture) formed on the fixing means. This has the effect of preventing problems such as decay and deterioration of the wood or wood-based material, more specifically, the wood-based structural material, in contact with the fixing means in the fifth invention.

The earthquake-resistant reinforcement structure of the sixth invention is any one of the first to third inventions described above, characterized in that the fixing means comprises titanium foil as the first fixing means and a strip-shaped sheet, band, or string made of resin fiber or carbon fiber as the second fixing means.
The sixth invention having the above configuration has the same effect as the first to third inventions. Furthermore, the effect of providing the titanium foil as the first fixing means in the sixth invention is the same as the effect of providing the titanium foil as the fixing means in the fourth invention.
Furthermore, in the sixth invention, the effect of providing a strip-shaped sheet, band, or string made of resin fiber or carbon fiber, which is the second fixing means, as the fixing means is the same as the effect of providing a strip-shaped sheet, band, or string made of resin fiber or carbon fiber as the fixing means in the fifth invention described above.
Furthermore, in the sixth aspect of the invention, for example, when the first fixing means, titanium foil, is wrapped around the overlapping portion of the wood structural material and the reinforcing material, and then the outer periphery of the wrapped titanium foil is tightly bound with a second fixing means, the reinforcing structure can be fixed to the wood structural material without applying a resin component such as an adhesive or embedding conventional metal fittings such as bolts or screws.
In this case, even if the frame (or the building equipped with it) including the wooden structural materials on which the earthquake-resistant reinforcement structure of the sixth invention is to be installed is designated as a cultural property, for example, and it is not possible to apply adhesives or embed metal fittings such as screws or bolts into the wooden structural materials, the earthquake-resistant reinforcement structure of the sixth invention can be installed without any problems.
Furthermore, a sixth aspect of the invention may be such that a portion around which the first fixing means is wound and a portion around which the second fixing means is wound are arranged side by side at the overlapping portion of the wood-based structural material, the reinforcing material that constitutes the reinforcing structure, and the buffer means.
In this case, even if the part around which the first fixing means is wound becomes loose, the part around which the second fixing means is wound is arranged nearby, which has the effect of preventing a decrease in the fixing effect of the reinforcing structure to the wood-based structural material.

The seventh invention, an earthquake-resistant reinforcement structure, is any one of the first to sixth inventions described above, characterized in that the reinforcement structure including the reinforcing material has a lattice structure or a truss structure.
The seventh invention having the above configuration has the same effect as the first to sixth inventions. Furthermore, in the seventh invention, the reinforcing structure has a lattice or truss structure, which increases the rigidity of the reinforcing structure itself. As a result, even if an external force acts to narrow the gap between the wooden structural members on which the reinforcing structure according to the seventh invention is disposed during an earthquake or other disaster, the reinforcing structure interposed between the wooden structural members will resist the external force and maintain the gap between the wooden structural members.

The eighth invention is a building characterized in that the building has an earthquake-resistant reinforcement structure according to any one of the first to seventh inventions in the framework that constitutes the building.
The eighth invention of the building having the above-mentioned configuration is a building having a framework with an earthquake-resistant reinforcement structure according to each of the first to seventh inventions, which is specified as an invention of a product.
The function of the earthquake-resistant reinforcement structure in the eighth invention is the same as that of each of the first to seventh inventions described above.
Furthermore, according to the eighth aspect of the present invention, the framework of the building is provided with the earthquake-resistant reinforcement structure described above, thereby improving the earthquake resistance of the building.

According to the first invention as described above, when a reinforcing structure is installed between wooden structural members, a buffer means is interposed between the wooden structural member and the reinforcing material that constitutes the reinforcing structure. This allows the buffer means to buffer and mitigate shear force (external force) that is transmitted from the reinforcing structure to the wooden structural member during an earthquake or other event.
Furthermore, in the first invention, the reinforcing members that make up the reinforcing structure are not joined to the wooden structural members to which they are attached, but are indirectly integrated by being bundled together with the fixing means. Therefore, when an earthquake or the like occurs and a large external force (such as a shear force) acts on the fixing structure between the wooden structural members and the reinforcing structure in the first invention, the external force can be alleviated by the buffer means, and also by causing a positional shift between the wooden structural members and the reinforcing structure in the fixing structure.
As a result, in the event of an earthquake or the like, the spaces between the wooden structural members on which the reinforcing structure according to the first invention is disposed can be prevented from being crushed, preventing damage to the building.
Furthermore, in the first invention, when connecting and integrating a reinforcing structure to a wooden structural material, there is no need to embed conventional metal fittings such as screws or bolts into the wooden structural material. Therefore, in the case of the first invention, the fibers that make up the wooden structural material are not destroyed during installation. Therefore, according to the first invention, damage and deterioration of the wooden structural material due to installation can be prevented.
In addition, according to the first aspect of the present invention, the wooden structural material and the reinforcing material that make up the reinforcing structure are not directly joined but are simply bundled and integrated by a fixing means, so even if an earthquake or other disaster occurs and the position of these fixing structures becomes misaligned, it can be easily repaired or restored.
Therefore, according to the first invention, a reinforcing structure can be installed on the wooden structural material to be installed without applying any resin components such as adhesives or embedding conventional metal fittings such as bolts or screws, and it is possible to provide an earthquake-resistant reinforcement structure that is less likely to cause damage or breakage to the wooden structural material to be installed, even if a large external force (e.g., shear force or tensile force) acts on the fixing structure in the first invention.

The second invention has the same effect as the first invention. Furthermore, by using a titanium leaf spring as the buffer means, the second invention can prevent deterioration such as rotting of the wooden structural material that comes into contact with the buffer means.
In this case, it is possible to prevent damage or deterioration of the wooden structural material to which the second invention is attached, which would result in the seismic resistance improvement effect of the second invention being lost.
In other words, according to the second invention, the effect of improving earthquake resistance due to the installation can be reliably achieved.

The third invention has the same effect as the first or second invention. Furthermore, in the third invention, the surface of the wooden structural material can be covered and protected with a protective means. In this case, if an earthquake or the like occurs during or after the installation of the third invention, the buffer means can be pressed against the surface of the wooden structural material, preventing damage to the surface of the wooden structural material.
Therefore, according to the third invention, it is possible to improve the earthquake resistance of the wooden structural material on which the structure is to be installed while protecting the material.
Therefore, according to the third invention, it is possible to provide an earthquake-resistant reinforcement structure that can be easily installed even in buildings designated as cultural properties, for example.

The fourth invention has the same effects as the first to third inventions. Furthermore, according to the fourth invention, by using titanium foil as the fixing means, it is possible to fix the reinforcing structure to the wood-based structural material and reinforce the connecting portion thereof at the same time.
Furthermore, titanium foil does not condense even when there is a temperature difference in the installation environment, so the wood structural material in contact with the titanium foil is less likely to decay. As a result, according to the fourth invention, deterioration due to decay of the wood structural material to which the fourth invention is attached can be prevented.
In this case, it is possible to prevent damage or deterioration of the wooden structural material to which the fourth invention is attached, which would result in the seismic resistance improvement effect of the fourth invention being lost.
In other words, according to the fourth aspect of the present invention, the effect of improving earthquake resistance due to the installation can be reliably achieved.

The fifth invention has the same effects as the first to third inventions. Furthermore, in the fifth invention, by using a strip-shaped sheet, band, or string made of resin fiber or carbon fiber as the fixing means, condensation does not occur on the surface of the fixing means when there is a temperature difference in the installation environment.
Therefore, according to the fifth invention, the portion of the wooden structural material that comes into contact with the resin fiber or carbon fiber strip-shaped sheet, band, or string that serves as the fixing means is less likely to decay, and as a result, according to the fifth invention, deterioration due to decay of the wooden structural material that is the target of the fifth invention can be prevented.
In this case, it is possible to prevent damage or deterioration of the wooden structural material to which the fifth invention is attached, which would prevent the seismic resistance improvement effect of the fifth invention from being lost. In other words, the fifth invention ensures that the seismic resistance improvement effect of the installation can be achieved reliably.
Furthermore, in the case of the fifth invention, the ends of the fixing means can be disposed of more easily than when a metal foil or metal sheet is used as the fixing means. That is, according to the fifth invention, the ends of the fixing means, which are strip-shaped sheets, bands, or strings made of resin fiber or carbon fiber, can be disposed of simply by tying a knot in the end of the fixing means.
As a result, the fifth invention can be quickly installed on the installation target.

The sixth aspect of the invention has the same effects as the first to third aspects of the invention.
Furthermore, in the sixth invention, when the first fixing means, titanium foil, and the second fixing means, a strip-shaped sheet, band, or string made of resin fiber or carbon fiber, are used as fixing means, and when the outer periphery of the part around which the first fixing means is wrapped is tightly fixed with the second fixing means, the effect is achieved that the reinforcing structure can be fixed to the wood-based structural material without applying a resin component such as an adhesive or embedding conventional metal fittings such as bolts or screws.
In addition, in the sixth invention, when the first fixing means, titanium foil, and the second fixing means, a strip-shaped sheet, band, or string made of resin fiber or carbon fiber, are used as fixing means, and when a portion around which the first fixing means is wrapped and a portion around which the second fixing means is wrapped are arranged side by side at the overlapping portion of the wood-based structural material, the reinforcing material, and the buffer means that make up the reinforcing structure, even if loosening occurs in the portion around which the first fixing means is wrapped, the fixing effect of the reinforcing structure to the wood-based structural material is prevented from decreasing.
Furthermore, in either case, even if deterioration or damage occurs to the reinforcing structure or fixing means (first fixing means and/or second fixing means) that constitute the sixth invention after installation due to changes over time, the reinforcing structure or fixing means can be replaced or repaired without damaging the wood-based structural material that is the target of installation of the sixth invention.
Therefore, according to the sixth invention, it is possible to provide an earthquake-resistant reinforcement structure that can permanently exert earthquake-resistant reinforcement effects without damaging the wood structural material on which it is installed, by replacing or repairing some or all of its components periodically or as needed.

The seventh invention has the same effects as the effects of the first to sixth inventions described above. Furthermore, in the seventh invention, the reinforcing structure has a lattice structure or a truss structure, which can increase the rigidity of the reinforcing structure.
Therefore, according to the seventh aspect of the present invention, it is possible to provide an earthquake-resistant reinforcement structure in which the structure of the reinforcement structure is simple and which has an excellent effect of improving earthquake resistance.

The eighth invention, a building, is a product invention that specifies a building equipped with an earthquake-resistant reinforcement structure, which is one of the first to seventh inventions described above.
Therefore, the effects of the eighth invention are the same as the effects of the first to seventh inventions described above.
Therefore, according to the eighth aspect of the present invention, the earthquake resistance of the entire building or desired areas can be improved.

FIG. 1 is a perspective view of an earthquake-resistant reinforcement structure according to an embodiment of the present invention. FIG. 2 is a perspective view of a fixing structure in the earthquake-resistant reinforcement structure according to the present embodiment. FIG. 10 is a perspective view showing a first modified example of the fixing structure in the earthquake-resistant reinforcement structure according to the present embodiment. FIG. 10 is a perspective view showing a second modified example of the fixing structure in the earthquake-resistant reinforcement structure according to the present embodiment. FIG. 10 is a perspective view showing a third modified example of the fixing structure in the earthquake-resistant reinforcement structure according to the present embodiment. FIG. 1A is a perspective view showing a first modified example of a buffer means used in the fixing structure of the earthquake-resistant reinforcement structure according to this embodiment, and FIG. 1B is a perspective view showing a second modified example of a buffer means used in the same fixing structure. FIG. 10 is an exploded perspective view of a fixing structure according to a fifth modified example of the present embodiment. FIG. 10 is a perspective view showing a main part of a fixing structure according to a fifth modified example of the present embodiment. 1A is a partial perspective view of a disassembled joint of a reinforcement structure in an earthquake-resistant reinforcement structure according to this embodiment, and FIG. 1B is a partial perspective view of the same joint assembled. FIG. 10 is a perspective view showing a first modified example of a reinforcement structure in the earthquake-resistant reinforcement structure according to the present embodiment. FIG. 10 is a perspective view showing a second modified example of the reinforcement structure in the earthquake-resistant reinforcement structure according to the present embodiment. FIG. 10 is a perspective view showing another aspect of the fixing structure in the earthquake-resistant reinforcement structure according to the present embodiment. FIG. 1 is a plan view of the underfloor portion of a shrine/temple building equipped with an earthquake-resistant reinforcement structure according to this embodiment. FIG. 1 is a side view of the frame of a wooden house (building) equipped with an earthquake-resistant reinforcement structure according to this embodiment, viewed from the gable side. FIG. 10 is a partial perspective view showing another aspect of the fixing structure in the earthquake-resistant reinforcement structure according to the present embodiment.

An earthquake-resistant reinforcement structure and a building equipped with the same according to an embodiment of the present invention will be described with reference to Figures 1 to 15.

<1-1: Basic configuration of the present invention>
First, the basic configuration of an earthquake-resistant reinforcement structure according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG.
Fig. 1 is a perspective view of an earthquake-resistant reinforcement structure according to this embodiment, and Fig. 2 is a perspective view of a fixing structure in the earthquake-resistant reinforcement structure.
1, the earthquake-resistant reinforcement structure 1 according to this embodiment comprises two columns 3a, 3a made of wood-based structural materials 3, a reinforcing structure 2, for example a lattice-like structure, interposed between the columns 3a, 3a, and a fixing structure 8 (for example, fixing structure 8A) for fixing an edge of the reinforcing structure 2 to the column 3a. Note that, although multiple types of fixing structures 8 are exemplified in this embodiment, they will be referred to collectively as "fixing structures 8."
Furthermore, the reinforcing structure 2 in the earthquake-resistant reinforcement structure 1 of this embodiment as described above is provided with a reinforcing material 2a that forms part of the reinforcing structure 2 and is arranged alongside the column 3a (wood-based structural material 3) to which it is to be attached.
Furthermore, as shown in Figures 1 and 2, the fixing structure 8 in the earthquake-resistant reinforcement structure 1 according to the present embodiment as described above includes a buffer means 4, such as a leaf spring 4a, which is interposed between the reinforcing material 2a and the column 3a that constitute the reinforcing structure 2 and elastically deforms when an external force is applied, and a fixing means 5 which is wound around or placed around the outside of the overlapping portion of the column 3a, the leaf spring 4a, and the reinforcing material 2a, thereby indirectly integrating the column 3a, the leaf spring 4a, and the reinforcing material 2a.
In the earthquake-resistant reinforcement structure 1 according to this embodiment shown in FIGS. 1 and 2, the fastening means 5 includes both the first fastening means 5a (e.g., a metal sheet or foil) and the second fastening means 5b (e.g., a band made of resin fiber or carbon fiber) (fixing structure 8A). However, the fastening means 5 may include only the first fastening means 5a or the second fastening means 5b. Alternatively, the first fastening means 5a and the second fastening means 5b may be wound around the outer periphery of the overlapping portion of the column 3a, leaf spring 4a, and reinforcing member 2a, respectively, so that they do not overlap. This point will be described in detail later with reference to the drawings as a detailed structure of the fastening structure 8.

Furthermore, while Figure 1 illustrates an example in which the earthquake-resistant reinforcement structure 1 according to this embodiment is installed under the floor of a building, i.e., vertically below the joists 51 in a wooden framework, the earthquake-resistant reinforcement structure 1 may be installed in a location other than under the floor of a building. This point will also be explained in detail later with reference to the drawings.

<1-2: Installation method of the present invention>
The earthquake-resistant reinforcement structure 1 according to this embodiment as described above can be installed between the columns 3a, which are wooden structural members 3, by the following procedure.
More specifically, when installing the earthquake-resistant reinforcement structure 1 according to this embodiment, first, a reinforcement structure 2 is prepared, which functions as a spacer between the wooden structural members 3. The reinforcement structure 2 may be made by assembling wood or wooden materials (such as laminated lumber) in a lattice pattern, as shown in Figures 1 and 2, or may be made by forming metal L-shaped angles into a lattice pattern (not shown).
Next, the reinforcing structure 2 is placed between the two columns 3a to which the earthquake-resistant reinforcement structure 1 according to this embodiment is to be attached. More specifically, the reinforcing members 2a that form part of the reinforcing structure 2 and are placed on the edge of the reinforcing structure 2 are placed next to the columns 3a to which they are to be attached. At this time, the reinforcing structure 2 may be supported, if necessary, by using a work horse or the like.
Furthermore, when the reinforcing material 2a that constitutes the reinforcing structure 2 is installed next to the pillar 3a that is the wooden structural material 3, a buffer means 4, for example, a leaf spring 4a, is interposed between the pillar 3a and the reinforcing material 2a.
After this, either the first fixing means 5a or the second fixing means 5b, or both, are wound around the overlapping portion of the pillar 3a, the leaf spring 4a, and the reinforcing material 2a, and the pillar 3a, the leaf spring 4a, and the reinforcing material 2a are indirectly integrated by the fixing means 5.
Similarly, the other end of the reinforcing structure 2 (the side having the reinforcing material 2a) can be fixed to a wooden structural material 3, such as a pillar 3, by a fixing structure 8.

The fixing means 5 and its end portions can be treated (finished) by any of the following methods.
First, when using only the first fixing means 5a (e.g., a metal sheet) as the fixing means 5, the end portion of the uppermost layer of the fixing means 5a, which is wound around the overlapping portion of the pillar 3a, the leaf spring 4a, and the reinforcing material 2a, can be fixed with an adhesive made of resin or the like (end fixing method A).
In this case, the terminal end of the first fixing means 5a made of a metal sheet is fixed with adhesive onto the metal sheet continuing from this terminal end, so the first fixing means 5a is not directly joined to the pillars 3a or the reinforcing material 2a. In other words, the pillars 3a, leaf springs 4a, reinforcing material 2a, and first fixing means 5a are not joined even though they are in contact with each other, so when an external force is applied to the fixing structure 8, a certain degree of misalignment between each part is allowed.

Furthermore, when the first fixing means 5a (for example, a metal sheet) is used as the fixing means 5, a method for fixing the end portion thereof other than the end fixing method A described above can also be adopted.
More specifically, a metal fixing device (not shown) may be placed around the outside of the first fixing means 5a wound around the outer periphery of the overlapping portion of the pillar 3a, the leaf spring 4a, and the reinforcing material 2a, and this fixing device may be tightened and fixed with bolts or the like (end fixing method B).
In this case too, the terminal end of the first fastening means 5a can be fixed onto the same metal sheet that follows this terminal end.
Furthermore, when the end fixing method B is adopted, no adhesive is used to fix the end of the first fixing means 5a, so there is no need to wait for the adhesive to harden, etc. This improves the workability of the installation work of the earthquake-resistant reinforcement structure 1 according to this embodiment.

Furthermore, when only the second fixing means 5b (for example, a strip-shaped sheet, band, or string made of resin fiber or carbon fiber) is used as the fixing means 5, the ends of the second fixing means 5b wound around the outer periphery of the overlapping portions of the pillar 3a, leaf spring 4a, and reinforcing material 2a may be tied together to fix them (end fixing method C). In other words, when this end fixing method C is adopted, the overlapping portions of the pillar 3a, leaf spring 4a, and reinforcing material 2a are tightly bound and integrated by the second fixing means 5b.
In this case, the starting and ending ends of the second fastening means 5b may be finished using a knot that is difficult or impossible to undo, such as a conventional knot called a "koroshi" or "otoko-musubi."

In addition, as shown in Figures 1 and 2, the fixing means 5 may include both first fixing means 5a and second fixing means 5b. In this case, for example, a metal sheet serving as the first fixing means 5a may be wound around the outside of the overlapping portion of the pillar 3a, leaf spring 4a, and reinforcing material 2a, and then a band or the like made of resin fiber or carbon fiber serving as the second fixing means 5b may be wound around the outside of that, and the ends of the band may be fixed using the end fixing method C described above.

Furthermore, when the fixing means 5 includes both the first fixing means 5a and the second fixing means 5b, it may be configured in a manner other than the above, that is, for example, in a manner other than the fixing structure 8A shown in FIGS.
More specifically, for example, a portion around which a first fixing means 5a (e.g., a metal sheet) is wound and a portion around which a second fixing means 5b (e.g., a band made of resin fiber or carbon fiber) is wound may be arranged side by side around the outer periphery of the portion where the pillar 3a, the leaf spring 4a, and the reinforcing material 2a overlap.
More specifically, such a fixing structure may be, for example, one in which at least one location, and more preferably two or more locations, around the outer periphery of the overlapping portion of the pillar 3a, leaf spring 4a, and reinforcing material 2a are tightly fixed by the second fixing means 5b, and further, the first fixing means 5a is wound around the portion where the second fixing means 5b is not wound, and its end is fixed by the above-mentioned end fixing method A or end fixing method B (see fixing structure 8E in Figure 5 described later).

<1-3: Actions and Effects of the Basic Configuration of the Present Invention>
In the earthquake-resistant reinforcement structure 1 according to this embodiment, the reinforcing structure 2 interposed between the two columns 3a acts as a spacer. In other words, when an external force acts to compress the wooden structural members 3, for example, the columns 3a, 3a, the provision of the reinforcing structure 2 makes it possible to maintain the spacing between the columns 3a against the external force.
As a result, damage to a building equipped with the earthquake-resistant reinforcement structure 1 according to this embodiment can be prevented.
Furthermore, in the earthquake-resistant reinforcement structure 1 according to this embodiment, the reinforcing members 2a constituting the reinforcement structure 2 are arranged in parallel with the columns 3a, thereby providing the effect of directly reinforcing the columns 3a.

Furthermore, the earthquake-resistant reinforcement structure 1 according to this embodiment includes buffer means 4 (e.g., leaf springs 4a) between the reinforcing members 2a constituting the reinforcement structure 2 and the columns 3a, so that when a shear force acts on the columns 3a from the reinforcement structure 2 during an earthquake or the like, the buffer means 4 elastically deforms, thereby mitigating the shear force. As a result, the columns 3a (wood-based structural members 3) in the fixed structure 8 can be prevented from breaking or being damaged.
In addition, since the earthquake-resistant reinforcement structure 1 of this embodiment is equipped with a fixing means 5, the reinforcing material 2a, buffer means 4, and column 3a that constitute the reinforcement structure 2 can be indirectly integrated and fixed in a bundled state.
In this case, when an external force acts on the fixing structure 8 of the earthquake-resistant reinforcement structure 1 according to this embodiment due to an earthquake or the like, the external force can be alleviated by the respective parts constituting the fixing structure 8, namely, the columns 3a, the buffer means 4, the reinforcing members 2a, and the fixing means 5, shifting positions relative to one another. In this case, the risk of the columns 3a constituting the fixing structure 8 being broken or damaged can be significantly reduced.

Furthermore, since the frame of a wooden building is equipped with the earthquake-resistant reinforcement structure 1 of this embodiment, when an earthquake or the like occurs, the buffer means 4 that constitutes the earthquake-resistant reinforcement structure 1 can be elastically deformed to prevent damage or breakage to the wooden structural materials 3, such as the columns 3a, and by causing a positional shift between the parts that constitute the fixed structure 8, damage or breakage to the wooden structural materials 3, such as the columns 3a, can also be prevented.
As a result, it is possible to prevent the space between the wooden structural members 3, for example, the pillars 3a, 3a to which the earthquake-resistant reinforcement structure 1 according to this embodiment is attached, from being crushed, thereby preventing damage or destruction to the building.

Furthermore, in the earthquake-resistant reinforcement structure 1 according to this embodiment, when connecting the reinforcing structure 2 to a wood-based structural material 3, such as a column 3a, there is no need to apply a resin component such as an adhesive to the surface of the column 3a or to embed conventional metal fittings such as screws or bolts into the column 3a.
Therefore, when the earthquake-resistant reinforcement structure 1 according to this embodiment is provided, there is no risk that the surface of the wood-based structural material 3, for example, the pillar 3a, will be soiled with resin components or the like during installation, or that some of the fibers that make up the pillar 3a will be destroyed by metal fittings such as screws or bolts.
Therefore, according to the earthquake-resistant reinforcement structure 1 of this embodiment, damage to the wooden structural materials 3 that accompanies its installation and the resulting deterioration of the wooden structural materials 3 can be prevented.

Additionally, in the fixing structure 8 of the earthquake-resistant reinforcement structure 1 according to this embodiment, the three components, i.e., the wooden structural material 3, for example, the pillar 3a, the buffer means 4, for example, the leaf spring 4a, and the reinforcing material 2a that constitutes the reinforcing structure 2, are bundled and indirectly integrated by the fixing means 5. This means that even if an earthquake or the like occurs and misalignment occurs between the parts that constitute the fixing structure 8, it can be easily repaired or restored. Moreover, even in this case, the surface of the wooden structural material 3, for example, the pillar 3a, will not be soiled or damaged, and some of its fibers will not be destroyed.
Therefore, by using the earthquake-resistant reinforcement structure 1 of this embodiment, it is possible to improve the earthquake resistance of buildings designated as cultural properties, for example, without damaging or destroying the wooden structural materials 3 that make up the framework.

<2: Detailed structure of the present invention>
[2-1: Regarding the detailed structure of the fixed structure]
Next, modified examples of the fixing structure 8 in the earthquake-resistant reinforcement structure 1 according to this embodiment will be described with reference to FIGS.
Fig. 3 is a perspective view showing a first modified example of the fixing structure in the earthquake-resistant reinforcement structure according to this embodiment. Fig. 4 is a perspective view showing a second modified example of the fixing structure in the earthquake-resistant reinforcement structure according to this embodiment. Fig. 5 is a perspective view showing a third modified example of the fixing structure in the earthquake-resistant reinforcement structure according to this embodiment. Note that the same parts as those shown in Fig. 1 or 2 are given the same reference numerals, and explanations of their configurations will be omitted.
The fixing structure 8 in the earthquake-resistant reinforcement structure 1 according to this embodiment may be, for example, a fixing structure 8B according to a first modified example, which uses a first fixing means 5a as the fixing means 5, as shown in FIG. 3 (optional component).
Furthermore, when the first fixing means 5a (e.g., a metal sheet) is used as the fixing means 5, in addition to the effect of indirectly fixing the reinforcing structure 2 to the wood-based structural material 3, such as the pillar 3a, the first fixing means 5a (e.g., a metal sheet) has the effect of further reinforcing the overlapping portion of the pillar 3a, the leaf spring 4a, and the reinforcing material 2a.

Furthermore, when the first fixing means 5a is used as the fixing means 5, titanium foil may be used as the first fixing means 5a (optional component).
In this case, even if the earthquake-resistant reinforcement structure 1 according to this embodiment is installed outdoors in a place where there is no rainfall and where there are temperature differences, condensation will not occur on the surface of the titanium foil, which is the first fixing means 5a.
On the other hand, when a metal sheet other than titanium is used as the first fastening means 5a, condensation may occur on the surface of the first fastening means 5a depending on the installation environment. In this case, wood-decaying fungi may easily grow in the contact area between the first fastening means 5a and the wooden structural material 3 by utilizing the condensation (moisture) formed on the surface of the metal sheet.
In this case, there is a concern that the decay of the wood structural material 3, which is wood or wood-based material that comes into contact with the first fixing means 5a, will be accelerated, causing the wood structural material 3 to deteriorate and resulting in a decrease in the strength of the wood structural material 3, for example, the pillar 3a.
On the other hand, in the fixing structure 8B according to the first modification, by using, for example, titanium foil as the fixing means 5, it is possible to suitably suppress the occurrence of the above-mentioned problems.
Therefore, when the earthquake-resistant reinforcement structure 1 according to this embodiment is equipped with the fixing structure 8B according to the first modification, the wooden structural material 3 (e.g., the pillar 3a) on which it is to be installed can be prevented from decaying and deteriorating, and as a result, the earthquake-resistant reinforcement structure 1 according to this embodiment can be reliably provided with improved earthquake resistance.
Furthermore, if the installation location of the fixing structure 8 in the earthquake-resistant reinforcement structure 1 of this embodiment is an environment where condensation does not or is unlikely to occur on the surface of the metal parts, there is no particular problem if the material of the first fixing means 5a is a metal other than titanium.

Furthermore, the fixing structure 8 in the earthquake-resistant reinforcement structure 1 according to this embodiment may be a fixing structure 8C according to a second modified example, which uses a second fixing means 5b as the fixing means 5, as shown in Figure 4 (optional component).
In this way, when the second fixing means 5b (for example, a strip-shaped sheet, band, or string made of resin fiber or carbon fiber) is used as the fixing means 5, the reinforcing effect of winding the second fixing means 5b around the overlapping portions of the pillar 3a, leaf spring 4a, and reinforcing material 2a is slightly inferior compared to when the first fixing means 5a is used as the fixing means 5 (see Figure 3).
On the other hand, when the second fixing means 5b is used as the fixing means 5, there is no need to use a resin component such as an adhesive or a separate fixing tool to finish the beginning and end of the fixing means 5. This means that the work of forming the fixing structure 8C can be completed using only the second fixing means 5b.
As a result, the materials and working time required to form the fixing structure 8C can be saved.

Furthermore, when the second fixing means 5b is used as the fixing means 5, a strip-shaped vinylon spun yarn fabric (manufactured by Kuraray Co., Ltd.) or a fabric made of carbon fiber may be used as the second fixing means 5b (optional component).
The above-mentioned vinylon spun yarn fabric is a fabric made using spun yarn of vinylon fiber (PVA fiber: polyvinyl alcohol fiber), and has excellent weather resistance and chemical resistance.
Furthermore, fabrics made using the above-mentioned carbon fibers have both mechanical properties (high specific strength, high specific modulus of elasticity) and characteristics that come from the fact that the material is carbonaceous (low density, low thermal expansion coefficient, heat resistance, chemical stability, self-lubricating properties, etc.).

When the second fixing means 5b is a vinylon spun yarn fabric or a fabric made of carbon fiber as described above, when forming the fixing structure 8C relating to the second modified example, the second fixing means 5b is wound around the overlapping portion of the wood-based structural material 3, for example, the pillar 3a, the buffer means 4, and the reinforcing material 2a that constitutes the reinforcing structure 2, and the starting end and the ending end are tied to form the knot 6.
In this way, when a fabric made of vinylon spun yarn or carbon fiber is used as the second fixing means 5b in the earthquake-resistant reinforcement structure 1 of this embodiment, the reinforcing structure 2 can be more firmly tied and fixed to the wood-based structural material 3 than when a fabric made of a material other than these materials is used, and durability can be maintained for decades.

In addition, when a strip-shaped sheet, band, or string made of resin fiber is used as the second fixing means 5b, the resin fiber may be a fiber having a wet shrinkage ability that shrinks upon contact with a liquid that can exhibit wet shrinkage ability, such as water (optional component).
In this case, a second fixing means 5b having wet shrinkage capacity is wound around the overlapping portion of the wooden structural material 3, for example, the pillar 3a, the buffer means 4, and the reinforcing material 2a constituting the reinforcing structure 2, and the starting and ending ends are tied to form a knot 6 (see, for example, Figure 4), and then a liquid capable of exhibiting wet shrinkage capacity, such as water, is poured onto the portion around which the second fixing means 5b is wound, causing the second fixing means 5b to shrink.
In this case, the second fixing means 5b having wet shrinkage capacity can be shrunk in the length direction of the second fixing means 5b at the wound position. Then, by the second fixing means 5b having wet shrinkage capacity shrinking in the length direction (long side direction), the part bound by the second fixing means 5b is tightened more firmly, and the reinforcing structure 2 can be more firmly fixed to the wood structural material 3.
In addition, the second fixing means 5b made of fibers having the ability to shrink when exposed to water or the like can be used not only for the fixing structure 8C relating to the second modified example, but also for other fixing structures 8 equipped with the second fixing means 5b, and for the reinforcing structure 2' and reinforcing structure 2'' shown later.

As such, even when the fixing structure 8C of the second modified example is used as the fixing structure 8 of the earthquake-resistant reinforcement structure 1 according to this embodiment, condensation does not form on the surface of the second fixing means 5b when there is a temperature difference in the usage environment. Therefore, the fixing structure 8C of the second modified example can achieve the same effect as the fixing structure 8B of the first modified example, namely, the effect of preventing deterioration due to decay at the contact points between the second fixing means 5b and the wood structural material 3.

Furthermore, the fixing structure 8 of the earthquake-resistant reinforcement structure 1 according to this embodiment may include both a first fixing means 5a (e.g., a metal sheet) and a second fixing means 5b (e.g., a strip-shaped sheet, band, or string made of resin fiber or carbon fiber).
More specifically, the fixing structure 8A (see Figures 1 and 2) may be formed by, for example, wrapping the outer periphery of a first fixing means 5a around the overlapping portion of the pillar 3a, the leaf spring 4a, and the reinforcing material 2a and tightly binding and fixing it with a second fixing means 5b (optional component).
In this case, the effect of reinforcing the overlapping portion of the pillar 3a, leaf spring 4a and reinforcing material 2a by winding the first fixing means 5a can be simultaneously achieved, while the effect of making it easy to finish the beginning and end of the second fixing means 5b can be achieved.
In other words, when the fixing structure 8 includes both the first fixing means 5a and the second fixing means 5b as fixing means 5, and when the second fixing means 5b is disposed on the first fixing means 5a, there is no need to use adhesive or separate fixing devices as described above to finish the beginning and end of the second fixing means 5b. This has the effect of enabling the installation work of the earthquake-resistant reinforcement structure 1 according to this embodiment to be carried out quickly and easily.

Furthermore, when the fixing structure 8 in the earthquake-resistant reinforcement structure 1 according to this embodiment is provided with both the first fixing means 5a and the second fixing means 5b as fixing means 5, the fixing structure 8 may be in a form other than the above-described form, i.e., the fixing structure 8A shown in Figures 1 and 2.
More specifically, as shown in FIG. 5, for example, a fixing structure 8E according to a third modified example may be adopted, in which a portion around which the first fixing means 5a is wound and a portion around which the second fixing means 5b is wound are arranged side by side around the outer periphery of the portion where the pillar 3a, the leaf spring 4a, and the reinforcing material 2a overlap (optional component).
1 and 2, it is technically somewhat difficult to wrap the metal sheet, which is the first fastening means 5a, tightly and tightly without any gaps, which raises the concern that unintended loosening may occur when the outer periphery of the portion around which the first fastening means 5a (e.g., the metal sheet) is wrapped is tightly fastened with the second fastening means 5b.
In contrast, in the fixing structure 8E according to the third modified example shown in Figure 5, the fixed portion by the first fixing means 5a and the tightly fixed portion by the second fixing means 5b do not overlap, so the above-mentioned problem does not occur.
In other words, in the fixing structure 8E of the third modified example, even if some loosening occurs in the part where the first fixing means 5a is wrapped around, the surrounding area can be firmly tied and fixed by the second fixing means 5b, so the fixing effect of the reinforcing structure 2 to the wood-based structural material 3 such as the pillar 3a is not reduced.

In addition, when the fixing structure 8 in the earthquake-resistant reinforcement structure 1 according to this embodiment has both the first fixing means 5a and the second fixing means 5b as the fixing means 5, the first fixing means 5a may be specified as titanium foil, and the second fixing means 5b may be specified as a strip-shaped vinylon spun yarn fabric or a fabric made of carbon fiber (optional components).
Thus, the fixing structure according to the fourth modification is one in which the first fixing means 5a in the fixing structure 8 is specified as titanium foil (first fixing means 5a) and the second fixing means 5b is specified as a vinylon spun yarn fabric or a fabric made of carbon fiber (second fixing means 5b). The appearance of the fixing structure according to the fourth modification is the same as the fixing structure 8A shown in Figures 1 and 2 or the fixing structure 8E shown in Figure 5.
Furthermore, when the earthquake-resistant reinforcement structure 1 of this embodiment is equipped with the fixing structure of the fourth modified example, it achieves the combined effect of using titanium foil as the first fixing means 5a and the effect of using a vinylon spun yarn fabric or a fabric made of carbon fiber as the second fixing means 5b.
In addition, when the fixing structure 8E according to the third modified example or the fixing structure according to the fourth modified example described above is adopted, the second fixing means 5b may be made of fibers having the ability to shrink when exposed to water or the like.

[2-2: Modifications of the buffer means]
Here, a modified example of the buffer means 4 used in the fixing structure 8 of the earthquake-resistant reinforcement structure 1 according to this embodiment will be described with reference to FIG.
6(a) is a perspective view showing a first modified example of the shock absorber used in the fixing structure of the earthquake-resistant reinforcement structure according to this embodiment, and (b) is a perspective view showing a second modified example of the shock absorber used in the fixing structure. Note that the same parts as those shown in Figures 1 to 5 are given the same reference numerals, and explanations of their configurations will be omitted.
The leaf spring, which is the buffer means 4 used in the fixing structure 8 according to this embodiment, is preferably made of metal in terms of strength and durability.
In particular, if the earthquake-resistant reinforcement structure 1 according to this embodiment is installed outdoors and not exposed to rainwater, and in a location where there are large temperature differences, it is advisable to make the leaf springs serving as the buffer means 4 out of titanium.

As mentioned above, when the parts (e.g., fixing means 5, etc.) constituting the earthquake-resistant reinforcement structure 1 according to this embodiment are made of titanium, condensation does not occur on the surfaces of the parts even if there is a temperature difference in the installation environment of the earthquake-resistant reinforcement structure 1 according to this embodiment. In other words, by using titanium leaf springs 4a as the buffer means 4 that contacts the wood-based structural material 3, for example, the pillars 3a, it is possible to prevent condensation from occurring on the surfaces of the leaf springs 4a.
As a result, it is possible to prevent the wood from decaying at the contact points between the titanium leaf springs 4a and the wooden structural material 3. This prevents a decrease in the strength of the wooden structural material 3 (e.g., the column 3a) to which the earthquake-resistant reinforcement structure 1 according to this embodiment is attached.
Therefore, the earthquake-resistant reinforcement structure 1 according to this embodiment can reliably and sustainably exhibit the effect of improving earthquake resistance.

1 to 5, the leaf spring 4a in the fixing structure 8 according to this embodiment is described as having a wavy cross-sectional shape, but the shape of the leaf spring 4a does not need to be limited to the shape shown in FIGS. 1 to 5.
More specifically, the leaf spring that is the buffer means 4 may be, for example, a leaf spring 4b or a leaf spring 4c having a zigzag cross-sectional shape as shown in Figure 6(a) or Figure 6(b) (optional component), or the buffer means 4 may be a spring that has a buffering effect other than a leaf spring, such as a disc spring formed into a conical shape with a hole in the center, arranged or connected together (optional component).

In particular, when the leaf spring 4b shown in Figure 6(a) is used as the buffer means 4, when it is interposed between the wooden structural material 3, for example, a pillar 3a, and a reinforcing material 2a that forms part of the reinforcing structure 2, the contact area between the wooden structural material 3 and the leaf spring 4b can be reduced.
In this case, for example, when a leaf spring 4b made of a metal other than titanium is used, and when there is a temperature difference in the installation environment of the earthquake-resistant reinforcement structure 1 of this embodiment, the risk of decay of the wood-based structural material 3 can be reduced.
When the leaf spring 4c shown in FIG. 6(b) is used as the buffer means 4, the flat surface 11 formed on the surface of the leaf spring 4c comes into contact with the surface of the wooden structural material 3, for example, the pillar 3a.
In this case, compared to when the leaf spring 4b shown in Figure 6(a) is used as the buffer means 4, when the leaf spring 4c is pressed strongly against the surface of the wood structural material 3, it is possible to prevent the surface of the wood structural material 3 from being damaged in an uneven manner.
Therefore, when the leaf spring 4c shown in Figure 6(b) is used as the buffer means 4 constituting the fixed structure 8 in the earthquake-resistant reinforcement structure 1 of this embodiment, an earthquake-resistant reinforcement structure can be provided that has an excellent effect of protecting the surface of the wood-based structural material 3 compared to when the leaf spring 4a or leaf spring 4b is used.

[2-3: Other Modifications of the Fixing Structure]
Next, a fifth modified example of the fixing structure 8 will be described with reference to FIGS.
Fig. 7 is an exploded perspective view of a fixing structure according to a fifth modified example of this embodiment. Fig. 8 is a perspective view showing the main parts of the fixing structure according to the fifth modified example of this embodiment. Note that the same parts as those shown in Figs. 1 to 6 are given the same reference numerals, and a description of their configurations will be omitted. Also, Figs. 7 and 8 omit the illustration of the fixing means 5.
In the present embodiment, if the fixing structure 8 is, for example, a leaf spring 4a having a wavy cross section as shown in FIGS. 1 to 5, or a leaf spring 4b or 4c having a zigzag cross section as shown in FIGS. 6(a) and 6(b), there is a concern that uneven scratches may be produced on the surface of the wooden structural material 3 when the overlapping portions of the pillar 3a, buffer means 4, and reinforcing material 2a are tightly bound by the fixing means 5.

In order to prevent such problems from occurring, the earthquake-resistant reinforcement structure 1 according to this embodiment may employ a fixing structure 8D according to a fifth modified example, in which a protective means 7 is interposed between the leaf spring 4a (or leaf spring 4b or leaf spring 4c) which is the buffer means 4 and the wood-based structural material 3 (optional component), as shown in Figures 7 and 8.
In this case, when the leaf spring 4a (or the leaf spring 4b or the leaf spring 4c) is pressed strongly against the surface of a wood-based structural material 3, such as a pillar 3a, the surface of the wood-based structural material 3 can be prevented from being damaged by the leaf spring 4a (or the leaf spring 4b or the leaf spring 4c).

Furthermore, the material of the protection means 7 is a material that will not easily break even if the leaf spring 4a (or leaf spring 4b or leaf spring 4c) is pressed hard against the wood-based structural material 3, and any material may be used as long as it has durability for several decades.
Furthermore, the material of the protection means 7 may be a titanium foil 7a (optional component).
In this case, even if there is a temperature difference at the installation location of the earthquake-resistant reinforcement structure 1 according to this embodiment, condensation will not form on the surface of the titanium foil 7a, which is the protection means 7. As a result, wood or wood-based materials are less likely to decay at the contact points between the titanium foil 7a and the leaf spring 4a (or leaf spring 4b or leaf spring 4c), and a decrease in strength due to deterioration of the wood-based structural material 3 can be effectively prevented.
Furthermore, when titanium foil 7a is used as the protection means 7, the leaf spring 4a (or leaf spring 4b or leaf spring 4c) does not come into direct contact with the wood-based structural material 3, so that a material other than titanium can be used for the leaf spring 4a (or leaf spring 4b or leaf spring 4c).
Therefore, when the fixing structure 8D of the fifth modified example shown in Figures 7 and 8 is adopted as the fixing structure 8 for the earthquake-resistant reinforcement structure 1 of this embodiment, an earthquake-resistant reinforcement structure can be provided that has a particularly excellent effect of protecting the surface of the wood-based structural material 3 and can reliably and sustainably improve earthquake resistance.

In addition, in the earthquake-resistant reinforcement structure 1 according to this embodiment, when the reinforcing material 2a forming part of the reinforcing structure 2 is made of wood or a wood-based material (e.g., laminated wood), the above-mentioned protective means 7 may be provided between the leaf spring 4a (or leaf spring 4b or leaf spring 4c) and the reinforcing material 2a (optional component), as shown in Figures 7 and 8, for example.
Although there is no particular problem if the surface of the reinforcing material 2a constituting the reinforcing structure 2 is slightly damaged, it is undesirable for the reinforcing material 2a to decay and lose its strength.
Therefore, by providing the above-mentioned protective means 7 between the leaf spring 4a (or leaf spring 4b or leaf spring 4c) and the reinforcing material 2a, the effect of improving earthquake resistance associated with the installation of the earthquake-resistant reinforcement structure 1 of this embodiment can be more reliably and sustainably achieved.
The protection means 7 interposed between the leaf spring 4a (or the leaf spring 4b or the leaf spring 4c) and the reinforcing member 2a may be the titanium foil 7a described above.
In this case, the same effects and advantages as when the titanium foil 7a is provided between the wood-based structural material 3 and the leaf spring 4a (or the leaf spring 4b or the leaf spring 4c) are achieved.

[2-4; Reinforcement structures]
Here, the reinforcement structure 2 in the earthquake-resistant reinforcement structure 1 according to this embodiment will be described with reference to FIGS. 1 and 9 to 11. FIG.
9(a) is a partial perspective view of the disassembled joint of the reinforcement structure in the earthquake-resistant reinforcement structure according to this embodiment, and (b) is a partial perspective view of the assembled joint. Note that the same parts as those shown in Figures 1 to 8 are given the same reference numerals, and the description of their configurations will be omitted.
When the reinforcing structure 2 in the earthquake-resistant reinforcement structure 1 of this embodiment is formed from wood or wood-based materials (e.g., laminated wood, etc.), conventionally known techniques can be used without any problems to connect the materials that make up the reinforcing structure 2.
Furthermore, as an example of such a conventionally known connection technique, as shown in Figure 9(a), a tenon 9a is protruded from the end of a reinforcing material 2a that constitutes a reinforcing structure 2, and a mortise hole 9b is formed in a connection object 2b that is arranged perpendicular to the reinforcing material 2a to insert the tenon 9a into, and the tenon 9a on the reinforcing material 2a side is inserted into the mortise hole 9b on the connection object 2b side to integrate them (optional component).
Furthermore, as shown in Figures 9(a) and (b), an insertion hole 9d may be drilled in the overlapping portion of the tenon 9a and the mortise hole 9b, and a rod-shaped plug 9c may be inserted into this insertion hole 9d (optional component).
In this way, by inserting the plug 9c into the connecting portion between the reinforcing material 2a and the connecting object 2b, the connecting state between them can be made even stronger.

Furthermore, the reinforcing structure 2 in the earthquake-resistant reinforcement structure 1 according to this embodiment may have a truss structure as shown in FIG. 1 or a lattice structure (not shown) (optional component).
In this case, the rigidity of the reinforcing structure 2 is increased compared to when a reinforcing structure 2 without a truss structure or lattice structure is used. As a result, the function as a spacer when the reinforcing structure 2 is interposed between wooden structural members 3 is improved.
Therefore, when the reinforcement structure 2 has a truss structure or a lattice structure, the earthquake-resistant reinforcement effect of the building can be improved by installing the earthquake-resistant reinforcement structure 1 according to this embodiment.

Here, a modified example of the reinforcement structure 2 in the earthquake-resistant reinforcement structure 1 according to this embodiment will be described with reference to FIG.
Fig. 10 is a perspective view showing a first modified example of a reinforcement structure in the earthquake-resistant reinforcement structure according to this embodiment. Fig. 11 is a perspective view showing a second modified example of a reinforcement structure in the earthquake-resistant reinforcement structure according to this embodiment. Note that the same parts as those shown in Figs. 1 to 9 are given the same reference numerals, and explanations of their configurations will be omitted.
In a first variant of this embodiment, the reinforcing structure 2' may be reinforced by wrapping the same component as the fixing means 5 around a desired location on the outside of the reinforcing structure 2 shown in Figure 1 (optional component), for example as shown in Figure 10.
Furthermore, in the reinforcing structure 2' relating to the first modified example described above, the reinforcing structure 2, which is the target of winding the same components as the fixing means 5, may or may not have a stopper 9c (see Figure 9 above) at the connecting portion between the materials.
Furthermore, the method for fixing the ends of the same components as the fixing means 5 wound around the reinforcing structure 2' is the same as the method for fixing the ends of the fixing means 5 described above (for example, end fixing methods A to C, etc.).

Furthermore, in the reinforcing structure 2' according to the first modified example shown in Figure 10, an example is given in which the same components as the second fixing means 5b are used as the reinforcing material wrapped around the outside of the reinforcing structure 2, but this reinforcing material may also be the same components as the first fixing means 5a.
Furthermore, when the reinforcing structure 2' relating to the first modified example described above is used in the earthquake-resistant reinforcement structure 1 of this embodiment, the reinforcing structure 2' can be prevented from disintegrating when a large external force acts on the reinforcing structure 2'.
Therefore, when the earthquake-resistant reinforcement structure 1 according to this embodiment is provided with the reinforcement structure 2' as described above, the earthquake-resistant reinforcement effect of the building can be further improved.

Furthermore, in a second modified example of this embodiment, the reinforcing structure 2'' may be configured such that, as shown in Figure 11, a portion where the same component as the first fixing means 5a is wound around and a portion where the same component as the second fixing means 5b is wound around are arranged side by side at desired locations around the outside of the reinforcing structure 2 shown in Figure 1 (optional components).
Furthermore, in the reinforcing structure 2'' relating to the second modified example described above, the reinforcing structure 2, which is the target of winding the same components as the first fixing means 5a and the same components as the second fixing means 5b, may or may not have a plug 9c (see Figure 9 above) at the connecting portion between the materials.
In the reinforcing structure 2'' of the second modified example, as mentioned above, there is a concern that loosening may occur in the portion around which the same constituent element as the first fixing means 5a is wound.
Therefore, by arranging a portion around which the same components as the second fixing means 5b are wound in parallel with a portion around which the same components as the first fixing means 5a are wound, even if the portion around which the same components as the first fixing means 5a are wound becomes loose, the vicinity can be tightly bound and fixed by the same components as the second fixing means 5b.
Therefore, according to the second modified reinforcing structure 2'' as shown in Figure 11, it is possible to provide a reinforcing structure that is more rigid and less susceptible to disassembly or damage than the first modified reinforcing structure 2' as shown in Figure 10.
Therefore, the earthquake-resistant reinforcement structure 1 according to this embodiment, which is provided with the reinforcement structure 2'' in the second modified example, can exert a more excellent earthquake-resistant reinforcement effect.

[2-5: Other aspects of the fixing structure]
Here, another aspect of the fixing structure 8 in the earthquake-resistant reinforcement structure according to this embodiment will be described with reference to FIG.
Fig. 12 is a perspective view showing another aspect of the fixing structure in the earthquake-resistant reinforcement structure according to this embodiment. The same parts as those shown in Figs. 1 to 11 are designated by the same reference numerals, and a description of their configurations will be omitted. Fig. 12 particularly illustrates an example in which fixing structure 8A is used as fixing structure 8.
In the above Figures 1 to 5, 7 and 8, an example is given in which one reinforcing structure 2 is connected to one pillar 3a (wood-based structural material 3) by a fixing structure 8, but it is also possible to connect two or more reinforcing structures 2 to one pillar 3a (wood-based structural material 3) by a fixing structure 8 (optional component).
In this case, as shown in Figure 12, for example, reinforcing materials 2a that constitute the reinforcing structure 2 are arranged so as to face each of the desired sides of the pillars 3a (wood-based structural materials 3), and buffer means 4 and, if necessary, protective means 7 are arranged between them, and fixing means 5 is further wrapped around the overlapping portion to form a fixing structure 8, thereby forming the earthquake-resistant reinforcement structure 1 of this embodiment.
In this case, as shown in FIG. 12, two or more reinforcing materials 2a (reinforcing structures 2) are gathered around one pillar 3a (wood-based structural material 3).

As shown in Figure 12, when two or more reinforcement structures 2 are connected to one pillar 3a (wood-based structural material 3) via a fixing structure 8, multiple reinforcing structures 2 can be indirectly integrated via the pillar 3a (wood-based structural material 3).
As a result, the seismic reinforcement effect of a building equipped with the seismic reinforcement structure 1 according to this embodiment can be further improved.

Further, another aspect of the fixing structure 8 in the earthquake-resistant reinforcement structure according to this embodiment will be described with reference to FIG.
Figure 15 is a partial perspective view showing another embodiment of the fixing structure in the earthquake-resistant reinforcement structure according to this embodiment. The same parts as those shown in Figures 1 to 14 are designated by the same reference numerals, and a description of their configuration will be omitted. Figure 15 illustrates an example in which a reinforcement structure 2' is fastened to a column 3a, which is a wooden structural material 3, using a second fixing means 5b. Needless to say, a buffer means 4 (such as a leaf spring 4a) is interposed between the wooden structural material 3 and the reinforcement structure 2'.
As shown in Figure 15, when a reinforcing structure 2' is fixed to a pillar 3a, which is a wood-based structural material 3, using, for example, a second fixing means 5b, an obstacle 62 may be present around the intended winding position of the second fixing means 5b.
In this case, the position and orientation of the inclined material 63a arranged near the reinforcing material 2a that constitutes the reinforcing structure 2' and that forms a lattice or truss structure can be appropriately adjusted, and the reinforcing structure 2' can be tightly fastened to the wood-based structural material 3 (column 3a) by the second fastening means 5b while avoiding obstacles 62 around the column 3a, which is the wood-based structural material 3, as shown in Figure 15 (fastening structure 8F(8) related to the sixth modified example).
As a result, even when an obstacle 62 is present around the column 3a of the wooden structural material 3, it is possible to install the earthquake-resistant reinforcement structure 1a according to this embodiment on the wooden structural material 3. This increases the number of locations where the earthquake-resistant reinforcement structure 1a according to this embodiment (see FIG. 15) can be installed in buildings primarily constructed using the wooden framework method (for example, shrine and temple buildings), thereby further improving the earthquake resistance and weather resistance of the building.

Furthermore, when the reinforcing structure 2' is fixed to the wooden structural material 3 only by the fixing structure 8F(8) according to the sixth modification as shown in Fig. 15, the vicinity of the corner 64 consisting of the reinforcing member 2a constituting the reinforcing structure 2' and the connection object 2b arranged vertically above it will not be fixed to the column 3a (wood structural material 3). In this case, there is a risk that the reinforcing structure 2' will not be fixed sufficiently to the column 3a (wood structural material 3).
In such a case, in addition to forming the fixing structure 8F (8) relating to the sixth modified example as described above, as shown in Figure 15, a reinforcing structure 2' may be arranged in a position close to a cross member, such as a joist 51, and the connection object 2b constituting the reinforcing structure 2' may be tightly fastened to this joist 51 using a second fixing means 5b (first connecting reinforcement structure 12a).
In this case, the reinforcing structure 2' is tightly fixed to the joists 51 in addition to the columns 3a by the second fixing means 5b (first connecting reinforcement structure 12a), so that the reinforcing structure 2' can be more firmly fixed to the wood-based structural material 3 (the columns 3a and joists 51).

Alternatively, instead of forming a first connecting reinforcement structure 12a in addition to the fixing structure 8F(8) relating to the sixth modified example as described above, as shown in Figure 15, the arrangement and orientation of an inclined material 63b that is arranged near the reinforcing material 2a of the reinforcing structure 2' and forms a lattice structure or truss structure may be appropriately adjusted, and both this inclined material 63b and the connection object 2b (reinforcing structure 2') may be tightly fastened to a cross member, such as a joist 51, using a second fixing means 5b (second connecting reinforcement structure 12b).
In this way, even when the fixing structure 8F (8) relating to the sixth modified example is equipped with the second connecting reinforcement structure 12b instead of the first connecting reinforcement structure 12a, the reinforcing structure 2' can be firmly tied and fixed to the wood-based structural material 3 (pillars 3a and joists 51) by the second fixing means 5b.
As a result, the reinforcing structure 2' can be more firmly fixed to the wooden structural material 3 (for example, the pillars 3a, the joists 51, etc.).

Note that if the earthquake-resistant reinforcement structure 1a according to this embodiment has the fixing structure 8F(8) according to the sixth modified example, as shown in Figure 15, the first connecting reinforcement structure 12a and the second connecting reinforcement structure 12b may be provided simultaneously (optional components). In this case, the reinforcing structure 2' can be fixed to the wood structural material 3 more firmly and reliably.

Furthermore, if there is an obstacle 62 around the column 3a (wood-based structural material 3) and the reinforcing structure 2' can be placed at a position away from the cross member, the joist 51, a structure similar to the fixing structure 8F (8) of the sixth modified example shown in Figure 15 may also be formed near the corner 64 on the vertically upper side of the reinforcing structure 2' (not shown).
In this case, even if an obstacle 62 is present around the pillar 3a (wood-based structural material 3), the reinforcing structure 2' can be firmly fixed to the wood-based structural material 3 without using the above-mentioned first connecting reinforcement structure 12a or second connecting reinforcement structure 12b.

In addition, Figure 15 explains an example in which the reinforcing structure 2' is fixed to a wooden structural material 3 (pillar 3a, etc.) under the floor using the fixing structure 8F (8) related to the sixth modified example, but the reinforcing structure 2' may also be installed on the floor or in the roof truss, in which case the cross member joists 51 can be replaced with girders or beams not shown.
In addition, although Figure 15 illustrates an example in which a reinforcing structure 2' is used, a reinforcing structure 2 or a reinforcing structure 2'' may be used instead of the reinforcing structure 2' (optional component). In this case, the same actions and effects as when the reinforcing structure 2' is used can be achieved.
Furthermore, if necessary, the first fixing means 5a made of the above-mentioned material may be wound around the lower layer of the fixing structure 8F(8) according to the sixth modification and the second fixing means 5b constituting the first connecting reinforcement structure 12a and/or the second connecting reinforcement structure 12b (optional component). In this case, the reinforcing effect of the reinforcing structure 2' on the wood-based structural material 3 can be further improved.
In addition, in the fixing structure 8F(8) according to the sixth modified example shown in Fig. 15, the leaf spring 4a is used as the buffer means 4, but the leaf spring 4b or the leaf spring 4c shown in Fig. 6 may be used instead of the leaf spring 4a (optional component). In this case, too, the same action and effect as the fixing structure 8F(8) according to the sixth modified example can be achieved.
15, a thin plate- or sheet-like protective means 7 (e.g., titanium foil 7a) as shown in Fig. 7 may be interposed between the leaf spring 4a or the like, which is the buffer means 4, and the wooden structural material 3 (pillar 3a, etc.) as needed (not shown, optional component). In this case, when the fixing structure 8F(8) according to the sixth modification is formed, damage to the surface of the wooden structural material 3 by the buffer means 4 can be suitably prevented.
The second fixing means 5b constituting the fixing structure 8F(8) according to the sixth modified example shown in FIG. 15 is particularly preferably made of the above-mentioned resin fiber or carbon fiber.
Furthermore, as mentioned above, it is preferable that the material of the buffer means 4 and the protection means 7 constituting the fixing structure 8F(8) according to the sixth modified example as shown in Figure 15 is metallic, and more preferably titanium.

<3: Installation location of the present invention>
The installation location of the earthquake-resistant reinforcement structure 1 etc. according to this embodiment will be described with reference to Figures 1, 13, and 14. In the following description, when the term "earthquake-resistant reinforcement structure 1 etc." is used, the earthquake-resistant reinforcement structure according to this embodiment includes the earthquake-resistant reinforcement structure 1a as shown in Figure 15, in addition to the earthquake-resistant reinforcement structure 1 described above with reference to Figures 1 to 12.
Fig. 13 is a plan view of the underfloor portion of a shrine/temple building equipped with an earthquake-resistant reinforcement structure according to this embodiment. Fig. 14 is a side view of the framework of a wooden house/building equipped with an earthquake-resistant reinforcement structure according to this embodiment, viewed from the gable side. The same reference numerals are used to designate the same parts as those shown in Figs. 1 to 12 and 15, and a description of their configurations will be omitted.
As mentioned above, the earthquake-resistant reinforcement structure 1 etc. according to this embodiment has a low risk of damaging the wooden structural material 3 (e.g., the column 3a etc.) to which it is attached during installation. For this reason, the earthquake-resistant reinforcement structure 1 etc. according to this embodiment is particularly suitable as an earthquake-resistant reinforcement means for buildings designated as cultural properties, or for buildings where changes to the exterior of the building due to the installation of the earthquake-resistant reinforcement structure are undesirable.

Furthermore, the earthquake-resistant reinforcement structure 1 according to this embodiment is particularly suitable as an earthquake-resistant reinforcement means for wooden buildings such as shrines and temples.
When the earthquake-resistant reinforcement structure 1 according to this embodiment is used as an earthquake-resistant reinforcement means for a wooden building such as a shrine or temple, it can be installed under the floor as shown in FIG. 1, FIG. 13, or FIG.
Unlike typical residential buildings, old shrine and temple buildings 10A, such as the one shown in Figure 13, often have underfloor spaces where people can walk. Furthermore, in old shrine and temple buildings 10A, boulders are placed on the ground surface to form foundations 50, and columns 3a are erected on these boulders (foundation 50). Joists 51 are placed between the columns 3a, and a floor is formed on top of these (see Figure 1).
Therefore, wooden structural materials 3 (for example, pillars 3a) that are the targets for installing the earthquake-resistant reinforcement structure 1 according to this embodiment are often present in an exposed state under the floors of old shrine and temple buildings 10A.

Furthermore, when the earthquake-resistant reinforcement structure 1 according to this embodiment is installed under the floor of the shrine/temple building 10A, the earthquake-resistant reinforcement structure 1 may be arranged so as to be symmetrical with respect to the shrine/temple building 10A when viewed from above, as shown in Figure 13, for example (optional component).
In this case, a better earthquake-resistant reinforcement effect can be achieved compared to when the arrangement of the earthquake-resistant reinforcement structure 1 according to this embodiment is not line-symmetric when the shrine/temple building 10A is viewed in plan.
Furthermore, if the underfloor space of the shrine or temple building 10A, which is the target for installing the earthquake-resistant reinforcement structure 1 of this embodiment, is sufficiently large in the vertical direction, another earthquake-resistant reinforcement structure 1' may be arranged in the form of a fire beam at a different height (level) from the earthquake-resistant reinforcement structure 1 arranged in a grid pattern in the plan view shown in Figure 13 (optional component).
In this case, the seismic reinforcement effect of the shrine/temple building 10A can be further improved.
Note that Figure 13 illustrates an example in which an earthquake-resistant reinforcement structure 1' is provided under the floor of the shrine/temple building 10A in addition to the earthquake-resistant reinforcement structure 1 according to this embodiment, but it is also possible to provide only an earthquake-resistant reinforcement structure 1' arranged in a flint beam shape without providing an earthquake-resistant reinforcement structure 1 arranged in a lattice shape under the floor of the shrine/temple building 10A (optional component).
In this case, the earthquake-resistance reinforcement effect of the shrine/temple building 10A is inferior to when both the earthquake-resistant reinforcement structure 1 and the earthquake-resistant reinforcement structure 1' are provided, but the strength of the frame of the shrine/temple building 10A can be improved.
Furthermore, if there is an obstacle 62 around the column 3a, which is a wood-based structural material 3, that may hinder the installation of the earthquake-resistant reinforcement structure 1 and the earthquake-resistant reinforcement structure 1', by adopting the earthquake-resistant reinforcement structure 1a as shown in Figure 15, the earthquake-resistant reinforcement structure 1, etc. can be installed in the necessary locations.

Furthermore, the earthquake-resistant reinforcement structure 1 according to this embodiment can be installed without any problems not only in wooden buildings and shrine and temple buildings 10A designated as cultural properties, but also in conventionally known wooden houses 10B.
More specifically, in the framework of a conventionally known wooden house 10B as shown in Figure 14, one tier (see the second floor part of the wooden house 10B shown in Figure 14) or multiple tiers (see the first floor part of the wooden house 10B shown in Figure 14) may be provided between wood structural members 3 (e.g., columns 3a) erected on the foundation 54 of the first floor or on the beams 55 (or girders 56) of the second floor (optional component).
Alternatively, the earthquake-resistant reinforcement structure 1 according to this embodiment may be installed between the rafters 59 (wood-based structural materials 3) that make up the rafters in the framework of a conventionally known wooden house 10B as shown in Figure 14 (optional component).
In either case, the earthquake resistance of the conventionally known wooden house 10B (building) can be improved.

Furthermore, although not specifically shown, the earthquake-resistant reinforcement structure 1 of this embodiment may be installed between beams (wood-based structural materials 3) or girders (wood-based structural materials 3) that make up the shrine/temple building 10A or wooden house 10B (optional component).
In this case too, the framework of the wooden building can be suitably reinforced by the earthquake-resistant reinforcement structure 1 according to this embodiment, thereby improving the earthquake resistance of the building.

<4;Other>
When the fixing means 5 and buffer means 4 constituting the earthquake-resistant reinforcement structure 1 according to this embodiment, or the protective means 7 provided as needed, are titanium foil or a flat plate or sheet made of titanium, the thickness of these or the overall thickness when formed into the leaf spring 4a (or leaf spring 4b or leaf spring 4c) will not be specifically mentioned, but these may be set appropriately depending on the material (solid wood or laminated wood, etc.), dimensions, strength, or state of deterioration of the wood structural material 3 on which they are to be installed.
Furthermore, although the example described here is one in which the earthquake-resistant reinforcement structure 1 according to this embodiment is installed in a building constructed using the wooden frame construction method (temple/shrine building 10A or wooden house 10B), the earthquake-resistant reinforcement structure 1 according to this embodiment may also be installed in the frame of a building (mixed structure building) in which part of the building is constructed using the wooden frame construction method.
In this case, the earthquake resistance of the framework that makes up the mixed structure building can be improved.

As explained above, the present invention provides a seismic reinforcement structure and a building equipped with it that can be installed in buildings constructed using the wooden frame construction method or in mixed-structure buildings that combine wooden frame construction with other construction methods, and that does not pose a risk of damaging the wooden structural materials to which it is installed either during or after installation, and can be used in the technical field of architecture.

DESCRIPTION OF SYMBOLS 1, 1', 1a... Earthquake-resistant reinforcement structure 2, 2', 2''... Reinforcement structure 2a... Reinforcement material 2b... Connection object 3... Wood-based structural material 3a... Pillar 4... Buffer means 4a, 4b, 4c... Leaf spring 5... Fixing means 5a... First fixing means 5b... Second fixing means 6... Knot 7... Protective means 7a... Titanium foil 8, 8A, 8B, 8C, 8D, 8E, 8F... Fixing structure 9... Connection structure 9a... Tenon 9b... Mortise hole 9c... Plug 9d... Insertion hole 10A... Temple and shrine architecture 10B... Wooden house 11... Flat surface 12a... First connecting reinforcement structure 12b... Second connecting reinforcement structure 50, 50'... Foundation 51... Joist 52... Joist 53... Floor beam 54... Base 55... Beam 56... Girder 57... Tie beam 58... Tie beam 59... Tie beam 60... Purlin 61... Rafter 62... Obstacle 63a, 63b... Inclined material 64... Corner

Claims (7)

At least two wood-based structural members;
a reinforcing structure interposed between the wood structural members;
a fixing structure for fixing the reinforcing structure to the wood-based structural material,
The reinforcing structure is
The reinforcing material forms part of the reinforcing structure and is provided in parallel with the wood structural material to be installed;
The fixing structure includes:
a buffer means interposed between the reinforcing material and the wood-based structural material, which is elastically deformed when an external force is applied;
and a fixing means wound around or provided around the outer periphery of the overlapping portion of the reinforcing material, the buffer means, and the wood-based structural material to indirectly integrate them ,
The earthquake-resistant reinforcement structure is characterized in that the buffer means is a leaf spring made of titanium and having a wave-shaped or zigzag cross-sectional shape . At least two wood-based structural members;
a reinforcing structure interposed between the wood structural members;
a fixing structure for fixing the reinforcing structure to the wood-based structural material,
The reinforcing structure is
The reinforcing material forms part of the reinforcing structure and is provided in parallel with the wooden structural material to be installed;
The fixing structure includes:
a buffer means interposed between the reinforcing material and the wood-based structural material, which is elastically deformed when an external force is applied;
a protection means interposed between the wood-based structural material and the buffer means ;
and a fixing means wound around or provided around the outer periphery of the overlapping portion of the reinforcing material, the buffer means, and the wood-based structural material to indirectly integrate them,
The earthquake-resistant reinforcement structure is characterized in that the buffer means is a leaf spring made of titanium and having a wave-shaped or zigzag cross-sectional shape . At least two wood-based structural members;
a reinforcing structure interposed between the wood structural members;
a fixing structure for fixing the reinforcing structure to the wood-based structural material,
The reinforcing structure is
The reinforcing material forms part of the reinforcing structure and is provided in parallel with the wood structural material to be installed;
The fixing structure includes:
a buffer means interposed between the reinforcing material and the wood-based structural material, which is elastically deformed when an external force is applied;
An earthquake-resistant reinforcement structure characterized by comprising a fixing means which is titanium foil that is wrapped around or placed around the outside of the overlapping area of the reinforcing material, the buffer means, and the wood-based structural material, indirectly integrating them . 3. The earthquake-resistant reinforcement structure according to claim 1, wherein the fixing means is a strip-shaped sheet, band, or string made of resin fiber or carbon fiber. At least two wood-based structural members;
a reinforcing structure interposed between the wood structural members;
a fixing structure for fixing the reinforcing structure to the wood-based structural material,
The reinforcing structure is
The reinforcing material forms part of the reinforcing structure and is provided in parallel with the wood structural material to be installed;
The fixing structure includes:
a buffer means interposed between the reinforcing material and the wood-based structural material, which is elastically deformed when an external force is applied;
and a fixing means wound around or provided around the outer periphery of the overlapping portion of the reinforcing material, the buffer means, and the wood-based structural material to indirectly integrate them,
The fixing means is
a titanium foil as a first fixing means;
An earthquake-resistant reinforcement structure characterized by comprising a second fixing means, which is a strip-shaped sheet, band, or string made of resin fiber or carbon fiber. An earthquake-resistant reinforcement structure according to any one of claims 1 to 3, characterized in that the reinforcement structure including the reinforcing material has a lattice structure or a truss structure. A building characterized in that the framework that constitutes the building is provided with the earthquake-resistant reinforcement structure described in any one of claims 1 to 3.