JP2007146592A - Shear reinforcing member, joint structure between woody structure member using it and method for joining woody structure member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a shear reinforcing member being capable of making a size smaller than normal cleat and splice plate because the shear reinforcing member has an excellent mechanical strength, having an excellent portability because of a weight lighter than a steel plate while also reducing the damage of an appearance, being capable of being easily cut by a saw and a chain saw in the case of the overhaul of a building while facilitating the reuse and recycle of members and having superior re-usability and recycling property, being capable of preventing a looseness generated owing to a drilling working expecting an error on a working because the shear reinforcing member can be drilled integrally with a structure member at a construction site and obtaining the joint structure having a high rigidity, preventing the generation of a dew condensation and also having even a fire resistance and a decay resistance and being capable of effectively utilizing a bamboo material left as it is under the state in which there is no effective industrial using method as a material. <P>SOLUTION: The shear reinforcing member has a consolidated body compression molded in the orthogonal direction to the fibrous direction of bamboo pieces or bamboo fibers by heating one bamboo piece or a plurality of the bamboo pieces or the bamboo fibers with an adhesive. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a shear reinforcement member that joins and reinforces a plurality of wood structure members made of laminated wood or wood, a joint structure between wood structure members using the same, and a method for joining wood structure members.

Conventionally, for the purpose of labor saving and rationalization of construction of houses, etc., it is buried between joint members for the purpose of joining structural members such as beams and eaves girder, eaves girder and column, girder and through column, column and column Have been developed. As such a connector, for example, one described in (Patent Document 1) is known. However, because it is made of metal or synthetic resin and is hard, it is difficult to cut with a saw or chain saw when dismantling the building, and it is difficult to reuse and recycle parts because separation is necessary. Had.
In order to solve this problem, the present inventors have developed a rod-shaped member formed by compressing bamboo material in a direction orthogonal to the fibers, and an adhesive inflow opening at both ends of the rod-shaped member formed in the longitudinal direction of the rod-shaped member. The manufacturing method of the connector provided with the hollow part of this was developed, and the patent application was filed (patent document 2). This connector is inserted into a pair of communicating holes drilled in the contact surface of the structural member, and an adhesive is injected into the hollow portion for injecting the adhesive so as to overflow between the communicating hole and the rod-shaped member. Filling and curing the adhesive in the communication hole to join the structural members. When bamboo is compressed in the direction perpendicular to the fibers, the cell lumen is reduced and the density is increased.As a result, the mechanical strength is improved, so that it is excellent in mechanical strength and can be easily cut with a saw or chain saw when the building is demolished. In addition, it has an excellent feature that it is not necessary to separate and can be easily reused and recycled.
Japanese Patent Laid-Open No. 5-331919 Japanese Patent Application No. 2005-193140

However, the above conventional techniques have the following problems.
(1) The bamboo joint manufactured by the technique disclosed in (Patent Document 2) has a large tensile strength substantially equal to or higher than that of the steel joint described in (Patent Document 1). However, the shear strength is about half that of steel connectors. Therefore, when joining long span or large cross-section structural members that form the framework of large-scale wooden buildings such as school facilities and sports facilities, increase the number of embedded joints to increase the shear strength of the joints. There must be. For this reason, there has been a problem that additional work such as drilling of the communication hole and injection of adhesive is increased and the workability is lacking.
(2) The structural member must be temporarily fixed until the injected adhesive is hardened. However, since the mussel or temporary bracing is used, it is difficult to fix the structural member and there is a gap in the joint surface. The adhesive was leaked from here and the bonding force was weakened, and there was a problem that it could not be fixed at the correct dimensional position.
(3) Conventionally, there are steel plates (gusset plates), splints, and splints used for joining members and joints that gather at the corners of column beams, truss nodes, etc., but large steel plates are heavy and transportable. There was a problem of lack of safety in mounting work on a large-scale frame at a high point. In addition, when a claw part is provided on the gusset plate, the claw part must be driven into the gusset plate using a large press at the factory to finish it into a long and integrated span. At the construction site, it was necessary to secure a crane for installation, and there was a problem that field work in a small site was difficult.
(4) When joining with a steel plate, it is necessary to previously perforate the steel plate with a hole for inserting a bolt or a drift pin to be coupled with the structural member. Since the through hole of the structural member for inserting the bolt etc. and the hole of the steel plate are drilled separately, it is necessary to drill larger than the diameter of the bolt etc. using the hole of the steel plate in consideration of processing errors Therefore, this has a problem that it causes backlash.
(5) When joining with a steel plate, since the steel plate was exposed outside, it had the subject that it was softened first at the time of a fire, strength could not be expected, and a building might collapse.
(6) When the steel plate is exposed to the outside, condensation is likely to occur on the surface of the steel plate during cold weather, and the steel plate is oxidized and the strength is lowered, or the steel plate and the structural member may be corroded. It was.
(7) When using a splint or a splint plate, the mechanical strength is small, so it is necessary to increase the cross-sectional thickness and area for safety in order to ensure the desired mechanical strength. In addition to the lack of transportability, there is a problem that the aesthetic appearance may be impaired particularly in places where the eyes are touched.

The present invention solves the above-mentioned conventional problems, and because it has excellent mechanical strength, it can be made smaller in size than a normal splint or a splint, and it is lighter than a steel plate, so it is excellent in transportability and may impair aesthetics. Less, and can be easily cut with a saw or chain saw when the building is dismantled, and it is easy to reuse and recycle components, and is excellent in reusability and recyclability. The joint structure with high rigidity that can prevent rattling due to the drilling of the tip hole can be obtained, the occurrence of condensation is prevented, the fire resistance and decay resistance are excellent, and there is no effective industrial usage as a material. An object of the present invention is to provide a shear reinforcement member capable of effectively utilizing bamboo material left as it is.
In addition, the present invention can increase bending strength and shear strength when joining a structural member having a large span or a large cross section that forms a skeleton of a large-scale wooden building such as a school facility or a sports facility. Minimize incidental work such as drilling of communication holes and adhesive injection to embed metal, providing excellent workability of joining work, excellent fire resistance and preventing corrosion of wooden structural members due to condensation It aims at providing the joining structure between the wood joining members which can provide a rational and safe building.
Further, the present invention can inject an adhesive after fixing a wooden structure member, and it is difficult to form a gap on the joining surface, and a high joining force can be obtained without leakage of the adhesive, and it is fixed at a correct dimensional position. It is an object of the present invention to provide a method for joining wood joining members which can be made and has excellent joining reliability.

In order to solve the above-described conventional problems, a shear reinforcement member of the present invention, a joining structure between wood structure members using the same, and a joining method of wood structure members have the following configurations.
The shear reinforcement member according to claim 1 of the present invention is a piece of bamboo, or a plurality of bamboo pieces or bamboo fibers and an adhesive are heated, and the direction perpendicular to the fiber direction of the bamboo pieces or the bamboo fibers is used. It has the structure provided with the compacting body compression-molded.
With this configuration, the following effects can be obtained.
(1) When bamboo pieces or bamboo fibers are compressed in a direction perpendicular to the fibers, the cell lumen is reduced, the density is increased, and the mechanical strength is improved accordingly, and the mechanical strength is excellent. For this reason, the size can be made smaller than that of a normal splint or a splint, and since it is lighter than a steel plate, it has excellent transportability and is less likely to impair the aesthetic appearance.
(2) When a building used as a joint between structural members is dismantled, it can be easily cut with a saw or a chain saw, and separation is unnecessary, and the reuse and recycling of the members is easy.
(3) Bamboo is a tough material with a high density of fibers near the outer skin side, and its mechanical strength is higher than that of beech, which is a typical high-strength wood (for example, the bending strength of madake 186 MPa) , Compressive strength 73MPa, tensile strength 243MPa, shear strength 17MPa, beech bending strength 98MPa, compressive strength 44MPa, tensile strength 132MPa, shear strength 13MPa. In the case of density 1.45 g / cm ³ ), a bending strength of 400 MPa or more was obtained.) By using as a joint between structural members, ordinary splints, splints and wood were heated and compressed. Compared to the joint structure using the reinforced laminate material manufactured in this way, a joint structure having high mechanical strength can be obtained.
(4) When bamboo is used as an industrial component, the amount of harvested bamboo will increase, and carbon dioxide, which causes global warming, can be fixed in the bamboo forest to protect the global environment. It can prevent erosion of planted forests and conserve national land. The carbon dioxide fixing ability of trees and bamboos will decline as they grow old, but bamboo will reach 10-20m height in a few months from the start of its growth, and growth will be almost completed in 3-4 years It is a very early bamboo material resource. It is a bamboo material resource that can be used regularly if it is harvested every year from the existing bamboo forest and the amount of harvest is equivalent to the amount generated. This is because if used, the bamboo forest resources will not be depleted, and the carbon dioxide fixing capacity of the bamboo forest can always be maximized. In recent years, artificial forests have been left without effective industrial use as materials, and the erosion of planted forests has been significant, and the shallow underground structure has reduced forest recharge and induced landslides during heavy rains. This is because of the cause.
(5) Since the holes for inserting bolts and drift pins to be connected to the structural member can be drilled integrally with the structural member at the construction site using a drill for wood, etc., no pre-drilling is required in consideration of processing errors. It is possible to prevent rattling caused by the tip hole processing. In addition, since it is attached to the wooden structure member by using a bolt or a drift pin sandwiched between shear reinforcement members, it can be used as a reinforcing member for the wooden structure member by reducing bolt penetration into the wooden structure member. It was found that the yield strength of about 48 kN can be given to the joint when the shear reinforcement member is used, compared to the yield strength (25 kN) when the side surface of the joint is sandwiched between the steel plates as a gusset.
(6) When exposed to the outside of the joint portion of the structural member, the surface burns in the event of a fire, but does not burn to the inside due to the action of the carbonized layer formed on the surface. Therefore, the strength of the shear reinforcement member can be maintained even in the event of a fire, and the fire resistance is excellent.
(7) Even if it is exposed to the outside of the joint portion of the structural member, no condensation occurs on the surface in a normal state, corrosion due to condensation can be prevented, and strength reduction can be prevented.
(8) Hemicellulose and lignin contained in bamboo pieces and bamboo fibers are partially depolymerized by heat treatment, resulting in the formation of phenolic compounds and furfural compounds that have the property of inhibiting the growth of bamboo decay fungi. Excellent decay performance.

Here, the shape of the compacted body can be appropriately selected according to the joint of the structural member and the structure of the joint. For example, the shape is approximately rectangular, approximately circular, approximately oval, or approximately oval in plan view. Plate shape, substantially triangular shape, substantially hexagonal shape, etc., plate shape, block shape, etc.
Further, the compacted body is not limited to one formed on a single plane, and a part thereof can be bent or formed to be bent at about 1 to 90 °. Thereby, it can use when joining between the wooden structure members constructed in the arch shape etc.

As the material of the consolidation material, one selected from one or more kinds of bamboo materials such as bamboo, such as mushroom, bee, mosochiku, kurochiku, medake, and bamboo such as nezasa, suzuke, yadake, kumazasa is used. .
As a piece of bamboo, what cut | disconnected cylindrical bamboo material and further divided | segmented into about 8-16 about the vertical direction is used. Furthermore, what was cut | disconnected shortly, and the hook-shaped thing divided | segmented further finely can also be used. It can be used avoiding the knot, or it can be used by removing the knot and cutting the protrusion of the knot.

As bamboo fiber, bamboo pieces are broken into fibers using any pressing means such as rollers, presses, etc., bamboo materials in high temperature and high pressure state are rapidly pulverized to normal pressure etc. to form fibers For example, pulp made of bamboo material, cellulose rayon fiber yarn made of bamboo material, and fiber yarn such as cellulose fiber yarn are used.
When laminating or joining a plurality of bamboo pieces or bamboo fibers at the time of compression molding, an adhesive described later is applied between the bamboo pieces. Thereby, bamboo pieces can be bonded together, and the thickness and size of the compacted body can be freely changed.
In addition, when laminating a plurality of bamboo pieces and bamboo fibers, the bamboo skin (endothelium and outer skin), which is the raw material of the bamboo pieces and bamboo fibers, is removed by grinding or blasting using a sander or the like. Is preferred. After the bamboo material is divided, these skins can be treated or in a round bamboo state. This is because by removing the epidermis, it is possible to improve the adhesive bondability between bamboo pieces and bamboo fibers, and to obtain a compact with high mechanical strength.

Bamboo fragments and bamboo fibers contain a lot of moisture when manufactured from bamboo materials that have just been cut out, so when heated, the moisture contained in the bamboo fragments and bamboo fibers evaporates and the bamboo fragments and bamboo fibers become hot. Since it is filled with high-pressure steam, heat is well transferred to the bamboo pieces and bamboo fibers, and the bamboo pieces and bamboo fibers are easily softened and easily compressed.
In addition, when using the dried bamboo material etc., it is preferable to make up a moderate water | moisture content by immersing a bamboo piece or bamboo fiber in water, while heating. This is to promote softening of the bamboo pieces and prevent the compacted body from being broken by compression molding. It is also possible to introduce water or water vapor from the outside of a molding apparatus such as a mold and heat and compress it in a water vapor atmosphere.

  As an adhesive for adhering bamboo pieces or bamboo fibers at the time of compression molding, an isocyanate adhesive, a phenol adhesive, tannin, ligphenol, or the like can be used. The isocyanate-based adhesive may be any adhesive having two or more isocyanate groups in one molecule. For example, TDI (toluene diisocyanate), MDI (diphenylmethane diisocyanate), triphenylmethane triisocyanate, polymeric MDI (polymethylene polyisocyanate). Phenyl isocyanate) and the like. These adhesives can be attached to a bamboo piece or the like by any method such as brushing, spraying, or soaking.

  As heating temperature, 100-180 degreeC, Preferably 130-180 degreeC is used. As the temperature drops below 130 ° C, the amount of water evaporation in the bamboo pieces and bamboo fibers is small, and it takes a long time for the bamboo pieces and bamboo fibers to soften. Tending to cause strength spots and cracks in the compacted body, and if the temperature is lower than 100 ° C., this tendency is remarkable, which is not preferable. As the temperature rises above 180 ° C., it is not preferable because cracks are generated in bamboo pieces and bamboo fibers, or cellulose and the like are decomposed and browned or burnt, and the mechanical strength tends to decrease.

When heated, the temperature of the bamboo pieces and the like rises, and water vapor penetrates into the bamboo pieces and softens. Press the softened bamboo pieces in the direction perpendicular to the fiber direction, reduce the cell lumen until the cross-sectional area ratio is about 1/2 to 1/3, compress it at the same time, and simultaneously heat cure the adhesive to make the bamboo pieces etc. Glue. By holding for about 1 to 60 minutes in this state, the shape of the compacted body is fixed.
The compression molding pressure is preferably 20 to 50 MPa, although it depends on the heating temperature. As the pressure becomes smaller than 20 MPa, there is a tendency that it becomes difficult to produce a high-density compact with a small amount of compression. As the pressure becomes larger than 50 MPa, the hard bamboo fibers are pressed together, the bamboo fibers are cut, and the mechanical strength tends to decrease. Since both are seen, neither is preferable.

Invention of Claim 2 of this invention is a shear reinforcement member of Claim 1, Comprising: The said compacting body has the structure provided with the nail | claw part standingly arranged by the one surface side or both surface side. Yes.
With this configuration, in addition to the operation obtained in the first aspect, the following operation can be obtained.
(1) Since the claws are provided, they can be press-fitted against the side surfaces and contact surfaces of the joints between the wooden structural members, and the wooden structural members can be joined to each other without using bolts or nails. be able to.
(2) When the claw portion is press-fitted into the side surface or the contact surface of the wooden structure member, the shear reinforcement member does not slide on the side surface or the contact surface of the wooden structure member, so that the rigidity of the joint portion can be increased. In particular, when the claw portion is press-fitted into the side surface of the wooden structure member, the shearing force transmitted from the claw portion can be held by the compacted body, and the yield strength can be increased.

  Here, as a nail | claw part, a trunk | drum is formed in cylindrical shape, a cone shape, a pyramid shape, prismatic shape, etc., and what kind of shape can be used if the front-end | tip is sharp, A bottom part becomes a compact body. Adhered, fitted, etc., are erected at a plurality of locations of the compacted body.

  As for the material of the nail part, similar to the compacted body, the bamboo piece is heated and compression-molded in the direction orthogonal to the fiber direction, or the bamboo piece and bamboo fiber are heated together with the adhesive in the direction orthogonal to the fiber direction. A compression molded product is used. In addition, a wood veneer obtained by cutting wood is heated and compression-molded in the direction orthogonal to the fiber direction, and an adhesive is applied to a wood veneer obtained by cutting wood and laminated and heated. What fixed the shape by compressing in the direction orthogonal to the fiber direction is used. This is because the strength is increased and a high buckling strength is obtained in the axial direction of the claw portion. Of these, materials made from bamboo pieces or bamboo fibers are preferably used. This is because the mechanical strength is high and a buckling strength higher than that of wood can be obtained.

The invention according to claim 3 of the present invention is the shear reinforcing member according to claim 2, wherein the compacted body is formed with a contact body in contact with a bottom portion of the claw portion and a support hole portion. And a support laminated on one or both sides of the contact body, and the claw portion is inserted into the support hole formed in the support.
With this configuration, in addition to the operation obtained in the second aspect, the following operation can be obtained.
(1) Since the claw portion is fitted and inserted into the support hole formed in the support body, the claw portion is unlikely to come off or break from the compacted body, and the side surface or the contact surface of the joint portion between the wooden structural members When pressed and pressed, the wooden structural members can be prevented from shifting and the wooden structural members can be firmly joined to each other.

Here, the contact body and the support are bonded with polyvinyl acetate, ethylene-vinyl acetate copolymer, urea resin, melamine resin, phenol resin, resorcinol resin, vinyl urethane, polyurethane, cyanoacrylate, tannin, ligphenol, etc. It can be adhered and laminated using an agent.
Further, the bottom part of the claw part and the contact body can be joined by adhesion, insertion or the like.

According to a fourth aspect of the present invention, there is provided a joint structure between the wooden structural members: (a) a plurality of wooden structural members made of laminated wood or wood; and (b) a pair of perforated surfaces on the wooden structural members. A connecting hole for the connecting tool, (c) a wood-like or bamboo-like stick-shaped member mounted in the communicating hole for the joining tool, and formed at one or both ends of the stick-shaped member formed in the longitudinal direction of the stick-shaped member. A connector having a hollow portion; and (d) at least a surface of the rod-shaped member that is injected into the hollow portion of the connector and flows out from one or more openings of the rod-shaped member and the communication hole for the connector. 4. The adhesive filled between the peripheral walls, and (e) the shear reinforcement member according to any one of claims 1 to 3, which is bridged over each of the wooden structural members and fixed to a side surface of the wooden structural member. It has the structure provided with.
With this configuration, the following effects can be obtained.
(1) Even when joining long spans or large cross-section structural members that form the framework of large-scale wooden buildings such as school facilities and sports facilities, the bending strength can be increased with the joints without increasing the number of joints to be buried. The increased shear strength can be increased with the shear reinforcement member, and a joint structure with high mechanical strength can be obtained. Joints made of wood or bamboo laminated or laminated materials can have a tensile strength almost equal to that of steel joints, but the shear strength is only about half that of steel joints. This is because it is necessary to increase the number of connectors to be embedded in order to compensate for this.
(2) Since the mechanical strength of the joint can be increased without increasing the number of joints to be embedded, incidental work such as drilling of joint holes and injection of adhesive can be minimized. Excellent workability.
(3) The surface of the shear reinforcement member burns in the event of a fire, but the inside of the shear reinforcement member does not burn due to the action of the carbonized layer formed on the surface. By expecting, strength can be maintained even in the event of a fire, and fire resistance is excellent.
(4) The shear reinforcement member fixed to the side surface of the wooden structure member does not cause condensation on the surface in a normal state, and can prevent corrosion of the wooden structure member due to condensation.

  Here, the rod-shaped member of the connector can be formed of a woody or bamboo-like laminated material or a laminated material. In addition, similar to the compacted body described in claim 1, the bamboo piece is heated and compression-molded in the direction orthogonal to the fiber direction, or the bamboo piece or bamboo fiber is heated together with the adhesive and the direction orthogonal to the fiber direction. It is also possible to use the one formed by compression molding. In addition, it is also possible to use a thin wood sheet obtained by cutting wood by applying an adhesive, laminating, heating and compressing in a direction perpendicular to the fiber direction to fix the shape. In either case, the strength is increased and a high bending strength is obtained. Of these, materials made from bamboo pieces or bamboo fibers are preferably used. This is because the mechanical strength is high and bending strength higher than that of wood can be obtained.

As means for fixing the shear reinforcement member to the side surface of the wooden structure member, a nail can be driven into the side surface of the wooden structure member by penetrating the shear reinforcement member or a coach screw can be screwed in. Moreover, when the shear reinforcement member is provided with a nail | claw part, a nail | claw part can be press-fitted and fixed to the side surface of a wooden structure member. Further, a through hole penetrating the shear reinforcement member and the wooden structure member can be formed, and a bolt can be inserted into the through hole and fastened by a nut to be fixed. In combination with these, if an adhesive is applied and bonded between the one surface side of the shear reinforcement member and the wooden structure member, the rigidity can be further increased.
In addition, it is preferable to use what manufactured by compacting a bamboo fiber like a compacted body of Claim 1 for a bolt and a nut. This is because it has excellent mechanical strength, can be easily cut with a saw or chain saw when the building is dismantled, and can be easily reused and recycled, and has excellent reusability and recyclability.

  The shear reinforcement member may be fixed to the surface of the wooden structural member as it is, or a concave portion slightly wider than the shear reinforcing member is formed on the surface of the wooden structural member, and a part or all of the thickness direction is embedded in the concave portion. It can also be fixed with. Thereby, it can finish to a wooden structure member and can improve visibility.

  The above-mentioned joint structure can be used for various joint structures such as beams and eaves girders, eaves girders and columns, body inserts and through columns, columns and columns, joint structures, and seismic reinforcement.

According to a fifth aspect of the present invention, there is provided a wood structure member joining structure comprising: (a) a plurality of wood structure members made of laminated wood or wood; and (b) a pair of perforations on the contact surface of the wood structure member. A connecting hole for a connector and a communicating hole for a reinforcing member; (c) a wooden or bamboo-like rod-shaped member mounted in the communicating hole for the connector; and one of the rod-shaped members formed in the longitudinal direction of the rod-shaped member. Or a joint provided with a hollow portion opened at both ends, and (d) the shear reinforcement member according to any one of claims 1 to 3 attached to the communication hole for the reinforcement member, and (e) An adhesive which is injected into the hollow portion of the connector and flows out from one or more openings of the rod-shaped member, and is filled between the surface of the rod-shaped member and the peripheral wall of the communication hole for the connector. have.
With this configuration, the following effects can be obtained.
(1) Even when joining long spans or large cross-section structural members that form the framework of large-scale wooden buildings such as school facilities and sports facilities, the bending strength can be increased with the joints without increasing the number of joints to be buried. The increased shear strength can be increased with the shear reinforcement member, and a joint structure with high mechanical strength can be obtained. Joints made of wood or bamboo laminated or laminated materials can have a tensile strength almost equal to that of steel joints, but the shear strength is only about half that of steel joints. This is because it is necessary to increase the number of connectors to be embedded in order to compensate for this.
(2) Since the mechanical strength of the joint can be increased without increasing the number of joints to be embedded, incidental work such as drilling of joint holes and injection of adhesive can be minimized. Excellent workability.
(3) Since both the shear reinforcement member and the joint are embedded in the wooden structure member, it is easy to see, and in the event of a fire, the carbonized layer formed on the surface does not burn to the inside, so even in the event of a fire Strength can be maintained and fire resistance is excellent.

  Here, when attaching the shear reinforcement member to the reinforcement member communication hole, the shear reinforcement member can be bonded to the reinforcement member communication hole with an adhesive. Further, the shear reinforcing member may be simply fitted into the reinforcing member communication hole without using an adhesive.

According to a sixth aspect of the present invention, there is provided a wood structure member joining method comprising: (a) a wood or bamboo stick member, and a hollow portion formed in the longitudinal direction of the rod member and opened at one or both ends of the rod member. And a step of perforating a pair of holes forming a connecting hole for a connecting member having substantially the same diameter as the connecting tool provided in each of the predetermined portions of the contact surfaces of the plurality of woody structure members, and (b) The step of attaching the connector to each of the perforated holes and bringing the wood structure members into contact with each other, and (c) bridging between the contacted wood structure members on the side surface of the wood structure member. A step of fixing the shear reinforcing member according to any one of 1 to 3, and (d) injecting an adhesive into the hollow portion of the connector mounted in the communication hole for the connector, and Thru | or let it flow out of several opening part, and the said peripheral surface part of the surface of the said rod-shaped member and the said communicating hole for connectors And it has a configuration including a step of filling the Chakuzai.
With this configuration, the following effects can be obtained.
(1) The structural member must be fixed until the adhesive injected into the joint communicating hole in which the joint is embedded is cured, but the shear reinforcement member is fixed to the side surface of the wooden structural member. It is possible to inject the adhesive after fixing the wooden structure member, and it is difficult to generate a gap on the joint surface, so that high adhesive force can be obtained without leaking the adhesive, and it is fixed at the correct dimensional position. It is possible to have excellent bonding reliability.
(2) Since the shear reinforcement member can be expected to have the same effect as the temporary bracing at the time of assembly, it is possible to inject adhesives later, and it is excellent in workability, and is separately assembled and lifted with a crane for assembly. It is also excellent in flexibility.

The wood structure member joining method according to claim 7 of the present invention includes: (a) a wood or bamboo rod member and a hollow portion formed in the longitudinal direction of the rod member and opened at one or both ends of the rod member. A pair of holes forming a connecting hole for a connecting tool having substantially the same diameter as the connecting tool provided with the connecting member, and a reinforcing member having substantially the same size as the shear reinforcing member according to any one of claims 1 to 3. A step of drilling a pair of hole portions forming communication holes in predetermined portions of contact surfaces of a plurality of wood structure members, and (b) the joint and the shear reinforcement member in each hole portion drilled in the step And (c) one or more openings of the rod-shaped member by injecting an adhesive into the hollow portion of the connector mounted in the connector communication hole. The adhesive is filled into the surface of the rod-shaped member and the peripheral wall portion of the communication hole for the connector. Has a that step, the configuration with.
With this configuration, the following effects can be obtained.
(1) The structural member must be fixed until the adhesive injected into the joint communicating hole in which the joint is embedded is cured, but the shear reinforcement member is attached to the contact surface of the wooden structural member. It is possible to inject the adhesive after fixing the wooden structure member, and it is difficult to create a gap on the joining surface, and a high joining force can be obtained without leaking the adhesive, and the correct dimensional position It is possible to fix with, and it has excellent bonding reliability.

As described above, according to the shear reinforcement member of the present invention, the joining structure between wood structure members using the shear reinforcement member, and the joining method of wood structure members, the following advantageous effects can be obtained.
According to the invention of claim 1,
(1) Compared to normal splint or splint, because it is superior in mechanical strength compared to reinforced laminates manufactured by heating and compressing wood, it can be smaller in size than normal splint and splint, and compared to steel plate Since it is light and lightweight, it can provide a shear reinforcing member that is excellent in transportability and that does not impair the beauty.
(2) Shear reinforcement that can be easily cut with a saw or chain saw when dismantling a building used as a joint between structural members, and that can be easily reused and recycled without separation, and has excellent reusability and recyclability A member can be provided.
(3) Bamboo wood that has been neglected without effective industrial use as a material can be used effectively, preventing the erosion of bamboo forests to artificial forests, etc. A shear reinforcement member can be provided.
(4) Since the holes for inserting bolts and drift pins to be connected to the structural member can be drilled integrally with the structural member at the construction site using a drill for wood, etc., no pre-drilling is required in consideration of processing errors. Thus, it is possible to provide a shear reinforcing member that can prevent rattling caused by the drilling of the front hole and obtain a highly rigid joint structure.
(5) If exposed to the outside of the joint of structural members, the surface will burn in the event of a fire, but the inside will not burn due to the action of the carbonized layer formed on the surface, so the strength should be maintained even in the event of a fire. The shear reinforcement member excellent in fire resistance can be provided.
(6) Even if exposed to the outside of the joint portion of the structural member, there is no condensation on the surface in a normal state, and a highly durable shear reinforcing member that can prevent corrosion and strength reduction due to condensation. Can be provided.
(7) Hemicellulose and lignin contained in bamboo pieces and bamboo fibers are partially depolymerized by heat treatment, resulting in the formation of phenolic compounds, furfural compounds, etc. having the property of inhibiting the growth of bamboo rot fungi Therefore, the shear reinforcement member excellent in decay resistance can be provided.

According to invention of Claim 2, in addition to the effect of Claim 1,
(1) Workability that can press the nail portion against the side or contact surface of the joint between the wooden structural members and press the wooden structural members together without using bolts or nails It is possible to provide an excellent shear reinforcement member.
(2) Since the shear reinforcement member does not slide on the side surface of the wooden structure member when the claw portion is press-fitted into the side surface or the contact surface of the wooden structure member, the shear reinforcement member capable of increasing the rigidity of the joint portion is provided. be able to.

According to invention of Claim 3, in addition to the effect of Claim 2,
(1) The claw part does not easily come off or break from the compacted body, and when pressed against the side surface or the contact surface of the joint part between the wooden structural members, the wooden structural members can be firmly joined to each other. A shear reinforcement member can be provided.

According to invention of Claim 4,
(1) Even when joining long spans or large cross-section structural members that form the framework of large-scale wooden buildings such as school facilities and sports facilities, the bending strength can be increased with the joints without increasing the number of joints to be buried. The increased shear strength can be increased by the shear reinforcement member, and a joint structure between the wood joint members having high mechanical strength can be provided.
(2) Since the mechanical strength of the joint can be increased without increasing the number of joints to be embedded, incidental work such as drilling of joint holes and injection of adhesive can be minimized. A joining structure between wood joining members excellent in workability of joining work can be provided.
(3) The surface of the shear reinforcement member burns in the event of a fire, but the inside of the shear reinforcement member does not burn due to the action of the carbonized layer formed on the surface. By expecting, it is possible to provide a joining structure between wood joining members that can maintain strength even in a fire and has excellent fire resistance.
(4) The shear reinforcement member fixed to the side surface of the wooden structure member does not cause condensation on the surface in a normal state, and has a bonding structure between the wooden connection members that can prevent corrosion of the wooden structure member due to condensation. Can be provided.

According to the invention of claim 5,
(1) Even when a long span or large cross-section structural member is joined, the bending strength can be increased with the joining tool without increasing the number of buried joining tools, and the shear strength can be increased with the shear reinforcing member. It is possible to provide a high wood structure member joining structure.
(2) Since the mechanical strength of the joint can be increased without increasing the number of joints to be embedded, incidental work such as drilling of joint holes and injection of adhesive can be minimized. It is possible to provide a wood structure member joining structure excellent in workability.
(3) Since both the shear reinforcement member and the joint are embedded in the wooden structure member, it is easy to see, and in the event of a fire, the carbonized layer formed on the surface does not burn to the inside, so even in the event of a fire It is possible to provide a joining structure of wood structure members that can maintain strength and have excellent fire resistance.

According to the invention of claim 6,
(1) Since the step of fixing the shear reinforcement member to the side surface of the wooden structural member is provided, the adhesive can be injected after fixing the wooden structural member, and it is difficult for a gap to be formed on the joint surface and the adhesive leaks. Therefore, it is possible to provide a method for joining wood structure members that can obtain a high joining force and can be fixed at a correct dimensional position and has excellent joining reliability.
(2) Since the same effect can be expected as the temporary bracing at the time of assembly, it is possible to inject adhesives later and excel in workability, and can be joined separately and lifted with a crane for assembly. It is possible to provide a method for joining wood structure members excellent in the above.

According to the invention of claim 7,
(1) Since the step of attaching the shear reinforcement member to the contact surface of the wooden structure member is provided, the adhesive can be injected after the wooden structure member is fixed, and it is difficult to form a gap on the joint surface. A high joining force can be obtained without leakage, and a wood structure member joining method that can be fixed at a correct dimensional position and has excellent joining reliability can be provided.

Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings.
(Embodiment 1)
FIG. 1 is a perspective view of a shear reinforcement member according to Embodiment 1 of the present invention, FIG. 2 is a cross-sectional view of a main part of the shear reinforcement member according to Embodiment 1, and FIGS. It is a perspective view of the shear reinforcement member of the modification in form 1.
1 and 2, reference numeral 1 denotes a shear reinforcement member according to the first embodiment, and 2 denotes a contact plate 3 and a support 4 which will be described later are laminated and bonded to each other and formed into a substantially rectangular plate shape in plan view. A layered compact 3, a bamboo piece or bamboo fiber heated and softened in high-temperature steam, or a plate compressed in the direction perpendicular to the fiber direction of the bamboo fiber and bonded with an adhesive to fix the shape The shape of the abutting body 4 was fixed in a shape in which the bamboo pieces or bamboo fibers were heated and softened in high-temperature steam and compressed in the direction perpendicular to the fiber direction of the bamboo pieces and bonded with an adhesive. It is a plate-like support body, and is laminated on one surface side of the contact body 3 so that the fiber direction is orthogonal to the fiber direction of the contact body 3. Reference numeral 5 denotes a support hole formed in a tapered shape at a plurality of locations on the support 4, 6 a recess formed on one side of the contact body 3, and 7 a recess 6 whose bottom is formed on the contact body 3. Is a substantially conical claw portion which is fitted to the contact body 3 and is fitted into the support hole portion 5 of the support body 4 so as to stand upright on one surface side of the compact body 2.

About the shear reinforcement member in Embodiment 1 of this invention comprised as mentioned above, the manufacturing method is demonstrated below.
First, a cylindrical bamboo material is cut in a direction substantially orthogonal to the longitudinal direction, and further divided into about 1/8 to 1/16 in the longitudinal direction to produce bamboo pieces. Next, the epidermis (outer skin and inner skin) of the bamboo pieces is removed by blasting. The bamboo piece is immersed in water until the water penetrates into the bamboo piece.
After an adhesive such as an isocyanate adhesive is uniformly applied to the surface of the bamboo pieces taken out from the water, the bamboo pieces are sequentially stacked in the cavity of the fixed side mold until a predetermined thickness is reached.
Next, after closing the cavity of the fixed side mold with the pressure core of the movable side mold, the cavity is heated to 100 to 180 ° C., preferably 130 to 180 ° C. using a cartridge heater or the like. As a result, moisture contained in the bamboo pieces evaporates and the bamboo pieces in the cavity are filled with high-temperature steam, so that heat is well transferred to the bamboo pieces and the bamboo pieces are softened. This state is maintained for 1 to 10 minutes.
Next, a pressure of 20 to 50 MPa is applied to the movable mold, and the bamboo piece is compression-molded so as to have a cross-sectional area ratio of about 1/2 to 1/3 while constraining the vertical and horizontal directions with a cavity. If it hold | maintains for about 1 to 60 minutes in this state, an adhesive agent will be thermoset, bamboo pieces will be adhere | attached, a shape will be fixed, compression molding will be carried out, and the contact body 3 will be manufactured. Furthermore, because the bamboo pieces are filled with high-temperature and high-pressure water vapor, the hemicellulose and lignin contained in the bamboo pieces are partially depolymerized, and as a result, phenolic compounds and furfurals that have the property of inhibiting the growth of bamboo decay fungi A compound etc. are produced | generated and the decay resistance of the contact body 3 is improved.
When the shape of the contact body 3 is fixed, the fixed side mold and the movable side mold are cooled. When the temperature of the contact body 3 becomes low enough to be removed from the fixed mold, the mold is opened and the contact body 3 is removed from the cavity. Similarly, a plate-like body for manufacturing the support body 4 and the claw portion 7 is manufactured.
The claw portion 7 can be manufactured by cutting a plate-like body into a strip shape and then processing it into a conical shape with a lathe or the like. Moreover, what cut | disconnected the plate-shaped object in the wedge shape can also be used even if it does not process to a cone shape. In addition, a mold having a conical cavity is filled with bamboo pieces or bamboo fibers, and is heated and compression-molded in a direction perpendicular to the fiber direction in the same manner as the contact body 3 and the support body 4. You can also
Next, the recessed part 6 is formed in the predetermined location of the one surface side of the contact body 3 using the drill for wood. Further, a tapered support hole 5 is drilled at a predetermined position of the support 4 using a wood drill or the like.
Next, after applying an adhesive such as resorcinol resin on one surface of the contact body 3 and the recess 6, the bottom of the claw 7 is fitted into the recess 6, and then the claw 7 is inserted into the support hole 5 of the support 4. The support body 4 and the contact body 3 are bonded and laminated so that the fiber directions are orthogonal to each other, and the compact body 2 is manufactured.
As described above, the shear reinforcing member 1 in which the claw portion 7 is erected on the one surface side of the compacted body 2 is manufactured.

In FIG. 3, the shear reinforcement member 1 a in FIG. 3A is formed by bending a part of the compacted body 2 at a predetermined angle in the same plane, and a claw portion 7 a formed in a wedge shape is bonded to one surface side of the compacted body 2. It is suitable to arrange | position on the side surface of the junction part between wooden structure members, when joining between the wooden structure members constructed by the arch type etc. Note that the claw portion 7a may not be provided.
(B) The shear reinforcement member 1b is formed by bending a part of the compacted body 2 at a predetermined angle of 1 to 90 °, and when joining wood structure members constructed in an arch shape or the like, It is suitable for disposing on the upper and lower surfaces of the joint between the wooden structural members. In addition, although the shear reinforcement member 1a, 1b demonstrated the case where the compacting body 2 was bend | folded and formed, it can also be made to curve-form.

(Embodiment 2)
Next, the joint structure between the wooden structural members in the second embodiment using the shear reinforcement member in the first embodiment will be described with reference to the drawings.
4 is a perspective view showing a state before joint joining between the wooden structural members in the second embodiment using the shear reinforcement member in the first embodiment, and FIG. 5 is a perspective view showing a state at the time of joint joining. 6 is a perspective view showing a joint structure between the wooden structural members in the second embodiment, FIG. 7 is a plan view of the joint structure between the wooden structural members in the second embodiment, and FIG. It is sectional drawing of the junction structure between the wooden structure members in a line. In addition, the thing similar to what was demonstrated in Embodiment 1 attaches | subjects the same code | symbol, and abbreviate | omits description.
In the figure, 10 is a cutting tree in a butt joint construction as a wooden structure member made of wood or laminated wood, 11 is a support tree in a butt joint construction as a wooden structural member made of wood, laminated wood, etc. The abutting surfaces 13 and 14 of the tree 10 and the receiving tree 11 are a pair of holes formed in the abutting surface 12, and a connecting hole 22 to be described later is formed by abutting the holes 13 and 14. The 15 is a joint made of wood or bamboo laminated material, laminated material, etc., and is inserted into the joint communication hole. 16 is a cross section that is substantially circular, substantially elliptical, or substantially polygonal. A rod-shaped member 17 formed in the longitudinal direction of the rod-shaped member 16 and an adhesive inflow hollow portion opened at both ends, and 18 formed of synthetic resin and screwed to the central portion of the rod-shaped member A branch pipe 19 is a branch pipe hollow portion formed in the branch pipe 18 communicating with the hollow portion 17 of the rod-like member 16, and 20 and 21 are formed in communication with the hole 13 on the contact surface 12 of the cutting tree 10 and joined. It is a cutting part to which the branch pipe 18 of the tool 15 is attached.
7 and 8, reference numeral 22 denotes a connecting hole for communication formed by the holes 13 and 14 in contact with each other. Reference numeral 23 denotes a through hole formed in the shear reinforcement members 1, 1, the cutting bar 10 and the receiving tree 11. , 24 is a bolt inserted through the through hole 23, and 25 is a nut fastened to the bolt 24.
In FIG. 8, 26 passes from the branch pipe hollow portion 19 of the branch pipe 18 through the hollow portion 17 of the rod-shaped member 16, and flows out from the openings of the hollow portions 17 at both ends of the rod-shaped member 16. It is an adhesive filled in a gap between the communication hole 22 and the peripheral wall.

Hereinafter, a method for joining the wooden structural members will be described with respect to the joining structure by joint joining between the wooden structural members in Embodiment 2 configured as described above.
First, as shown in FIG. 4, a hole in which a connector communication hole 22 having a length substantially the same as or slightly deeper than that of the rod-shaped member 16 of the connector 15 is formed in the insertion tree 10 and the receiving tree 11. The parts 13 and 14 are each drilled from the contact surface 12 with a drill or the like. Next, the cutting parts 20 and 21 communicated with the hole parts 13 and 13 are cut with a drill or the like.
Next, as shown in FIG. 5, the rod-like member 16 of the connector 15 is inserted into the hole 13, and the branch pipe 18 of the connector 15 is attached to the cutting parts 20 and 21. Next, an adhesive is applied to the contact surface 12 of the receiving tree 11 as necessary, and then the other end of the rod-shaped member 16 of the connector 15 is inserted into the hole 14 so that the cutting tree 10 and the receiving tree 11 are leveled. To abut the contact surface 12.
Next, as shown in FIGS. 5 to 7, the shear reinforcing member 1 is bridged between the cutting bar 10 and the receiving tree 11, and the claw portions 7 are press-fitted and fixed to the opposite side surfaces of the cutting tree 10 and the receiving tree 11. To do. Next, the through hole 23 is drilled in the shear reinforcing member 1, 1 and the cutting wood 10, the shear reinforcing member 1, 1 and the receiving wood 11 with a drill or the like, the bolt 24 is inserted into the through hole 23, and the nut 25 is fastened. To do.
Next, as shown in FIG. 8, an adhesive 26 such as resorcinol resin is injected from the branch pipe 18 using a cartridge gun (not shown). As a result, the adhesive 26 injected into the branch pipe 18 passes from the branch pipe hollow portion 19 through the hollow portion 17 of the rod-shaped member 16 and flows out from the openings of the hollow portions 17 at both ends of the rod-shaped member 16. The gap between the surface and the peripheral wall of the connector communication hole 22 is filled. The injection of the adhesive 26 is continued until the adhesive 26 is visible or leaks from between the branch pipe 18 and the peripheral walls of the cutting parts 20 and 21. When the cutting tree 10 and the receiving tree 11 are absorbent, the injection of the adhesive 26 is repeated 2 to 3 times. Next, the cutting parts 20 and 21 of the branch pipe 18 can be sealed with a plug or wood putty to join the cutting tree 10 and the receiving tree 11.

As described above, since the shear reinforcing member 1 according to Embodiment 1 of the present invention is configured, the following operation is obtained.
(1) When a bamboo piece is compressed in the direction orthogonal to the fiber, the cell lumen is reduced, the density is increased, and the mechanical strength is improved accordingly, and the mechanical strength is excellent. For this reason, the size can be made smaller than that of a normal splint or a splint, and since it is lighter than a steel plate, the transportability is excellent and the appearance of the joint structure between the wooden structural members is less impaired.
(2) Since the shear reinforcement member 1 is made of bamboo, it can be easily cut with a saw or a chain saw when the building is dismantled, and separation is unnecessary, and the member can be easily reused and recycled.
(3) Since the epidermis (endothelium and outer skin) has been removed, it is possible to improve the adhesive bondability between bamboo pieces and obtain a compact with high mechanical strength.
(4) Unlike steel gussets, the through holes for inserting bolts and drift pins can be drilled integrally with the cutting tree 10 and the receiving tree 11 at the construction site using a wood drill or the like. Tip drilling that allows for machining errors like gussets is unnecessary, and rattling caused by tip drilling can be prevented.
(5) If exposed to the outside of the joint, the surface will burn in the event of a fire, but will not burn to the inside due to the action of the carbonized layer formed on the surface. By expecting a reasonable burn allowance, strength can be maintained even in the event of a fire, and fire resistance is excellent.
(6) Even if it is exposed to the outside of the joint, no condensation occurs on the surface in a normal state, corrosion due to condensation can be prevented, and strength reduction can be prevented.
(7) Hemicellulose and lignin contained in bamboo pieces are partially depolymerized by heat treatment, resulting in the formation of phenolic compounds, furfural compounds, etc., which have the property of inhibiting the growth of bamboo decaying fungi. Excellent.
(8) Since the claw portion 7 is provided, it can be press-fitted against the side surface of the joint portion between the wooden structural members, and the wooden structural members can be joined to each other without using bolts, nails or the like. .
(9) When the claw portion 7 is press-fitted into the side surface of the wooden structure member, the shear reinforcement member 1 does not slide on the side surface of the wooden structure member, so that the rigidity of the joint portion can be increased.
(10) Since the nail | claw part 7 is inserted by the support hole part 5 formed in the support body 4, the nail | claw part 7 is hard to remove | deviate from a compact body 2, and to be broken, and the side surface of the junction part between wooden structure members In the case of press-fitting against the wood, the wooden structural members can be firmly joined to each other.
(11) Since the recessed part 6 is formed in the contact body 3 and the bottom part of the nail | claw part 7 is fitted, it is difficult for the nail | claw part 7 to shift | deviate or remove | deviate, and it can raise mechanical strength. Further, since the support hole portion 5 is formed in a tapered shape and the claw portion 7 formed in a conical shape is fitted and inserted, the claw portion 7 is difficult to be removed and the mechanical strength can be increased.

In the present embodiment, the case where the bamboo pieces are compressed and consolidated has been described. However, the bamboo fibers that have been broken into fibers may be heated and compressed together with the adhesive to be consolidated.
Further, the case where the claw portion 7 of the shear reinforcement member 1 is formed in a conical shape has been described. However, if the tip is sharp, the body portion is formed in a columnar shape, a conical shape, a pyramid shape, a prismatic shape, or the like. May be used. Further, the concave portion 6 is not formed in the contact body 3 and the bottom portion of the claw portion 7 is fitted, but the bottom portion of the claw portion 7 is brought into contact with the surface of the contact body 3 without forming the concave portion 6. There may be only.
Further, the case where the compact body 2 is laminated with the contact body 3 and the support body 4 and the claw portion 7 is inserted into the support hole portion 5 formed in the support body 4 has been described. 4 is bonded and laminated to manufacture the compacted body 2, but after the thick compacted body 2 is integrally formed in the cavity of the mold, the bottom of the claw portion 7 is adhered to one surface side of the compacted body 2. In some cases, the claw portion 7 is erected. In addition, the nail | claw part 7 does not need to be provided.

Moreover, according to the joining structure between the wooden structural members in Embodiment 2 of this invention, the following effects are obtained.
(1) Even when joining wooden structural members such as long spans, large cross sections 10 and receiving trees 11 forming a skeleton of a large-scale wooden building such as a school facility or a sports facility, a connector 15 to be embedded. Without increasing the number, the bending strength can be increased with the joint 15 and the shear strength can be increased with the shear reinforcing member 1, so that a joint structure with high mechanical strength can be obtained. Joints made of wood or bamboo laminated or laminated materials can have a tensile strength almost equal to that of steel joints, but the shear strength is only about half that of steel joints. This is because it is necessary to increase the number of connectors to be embedded in order to compensate for this.
(2) Since the mechanical strength of the joint can be increased without increasing the number of the joints 15 to be embedded, incidental work such as drilling of the joint communication holes 22 and injection of adhesive is minimized. Excellent workability.
(3) Although the surface of the shear reinforcement member 1 burns in the event of a fire, the inside of the shear reinforcement member 1 does not combust due to the action of the carbonized layer formed on the surface. By considering the cost, the strength can be maintained even in the event of a fire, and the fire resistance is excellent.
(4) The shear reinforcement member 1 fixed to the side surface of the wooden structure member does not cause condensation on the surface in a normal state, and can prevent corrosion of the wooden structure member due to condensation.
(5) Since the shear 10 and the support 11 are joined using the bamboo shear reinforcement member 1 and the wood or bamboo joint 15, it can be easily cut with a saw or chain saw when the building is dismantled. In addition, separation is unnecessary and the reuse and recycling of members is easy.

Moreover, according to the joining method of the wooden structure member in Embodiment 2 of this invention, the following effects are obtained.
(1) While the adhesive injected into the connector communication hole 22 in which the connector 15 is embedded is cured, the wood structure member composed of the cutting tree 10 and the receiving tree 11 must be fixed. Since the step of fixing the shear reinforcement member 1 to the side surface of the wooden structure member is provided, the adhesive can be injected after fixing the wooden structure member, and it is difficult for a gap to be formed on the joint surface and the adhesive does not leak. High bonding force can be obtained, and it can be fixed at the correct dimensional position and has excellent bonding reliability.
(2) Since the shear reinforcement member 1 can be expected to have the same effect as the temporary bracing at the time of assembly, it is possible to perform the injection of the adhesive into the joint 15 later, and it is excellent in workability. It can be lifted up and assembled to provide excellent flexibility.

In the second embodiment, the through hole 23 is drilled in the shear reinforcing member 1, 1 and the cutting bar 10, the shear reinforcing member 1, 1 and the receiving tree 11 with a drill or the like, and the bolt 24 is formed in the through hole 23. Although the case where it was inserted and fastened with the nut 25 was described, the shear reinforcement member 1 may be fixed by inserting a drift pin into the through hole 23 instead of the bolt 24. Moreover, without making the through hole 23, the shear reinforcement member 1 may be penetrated and a nail may be driven into the side surface of the cutting bar 10 or the like, or a coach screw may be screwed in and fixed.
Further, in the second embodiment, the case of the butt joint construction has been described, but various processes can be applied to the contact surface such as a large insertion process and a mating joint construction.

(Embodiment 3)
FIG. 9 is a diagram showing a state before joint joining between the wooden structural members in the third embodiment using the shear reinforcing member in the first embodiment, and FIG. 10 is a joining between the wooden structural members in the third embodiment. It is a perspective view which shows a structure. In addition, the thing similar to what was demonstrated in Embodiment 1 or 2 attaches | subjects the same code | symbol, and abbreviate | omits description.
In the figure, 10a is a cutting bar made of horizontal members such as girders, beams, and purlins, 11a is a receiving bar made of pillars, 12a is a contact surface between the cutting bar 10a and the receiving tree 11a, and 13a and 14a are connecting tools 15. These are holes formed in the cutting tree 10a and the receiving tree 11a from the contact surface 12a so as to be substantially the same as or slightly larger than the outer diameter of the bar-shaped member 16, and the cutting tree 10a and the receiving tree 11a are in contact with each other. A connecting hole communication hole in which the portions 13a and 14a communicate with each other is formed.

Hereinafter, a method for joining the wooden structural members will be described with respect to the joint structure by joint joining between the wooden structural members in Embodiment 3 configured as described above.
First, holes 13a and 14a and cutting parts 20 and 21 into which the rod-like member 16 of the connector 15 is inserted are drilled in the cutting tree 10a and the receiving tree 11a. Next, the contact surface 12a is smoothed to prevent leakage of the adhesive.
Next, the connector 15 is fitted and inserted into the holes 13a and 14a, and the cutting tree 10a and the receiving tree 11a are brought into contact with each other. Next, the shear reinforcement member 1 is bridged over the cutting tree 10a and the receiving tree 11a, and the claw portions 7 are press-fitted and fixed to the opposite side surfaces of the cutting tree 10a and the receiving tree 11a. Next, through holes 23 are drilled in the shear reinforcing members 1 and 1 and the cutting wood 10a, the shear reinforcing members 1 and 1 and the receiving wood 11a with a drill or the like, the bolts 24 are inserted into the through holes 23, and tightened with the nuts 25. To do.
Next, an adhesive such as resorcinol resin is injected from the branch pipe 18 and the injection of the adhesive is continued until the adhesive is visible from between the outer periphery of the branch pipe 18 and the peripheral walls of the cutting parts 20 and 21.
Next, the cutting parts 20 and 21 can be finished with a putty or the like to join the cutting tree 10a and the receiving tree 11a.

According to the joint structure between the wooden structural members in the third embodiment of the present invention, in addition to the functions described in the second embodiment, the following functions are obtained.
(1) A joint structure between high-strength wooden structural members is obtained not only in joint joining but also in joint joining, and is excellent in versatility.

(Embodiment 4)
FIG. 11 is a diagram showing a state before joint joining between the wooden structural members using the shear reinforcing member in the fourth embodiment. In addition, what was demonstrated in Embodiment 1 thru | or 3 attaches | subjects the same code | symbol, and abbreviate | omits description.
In the figure, reference numeral 11b is a receiving plate made of horizontal members such as girders, beams, and purlins, and 30 is a piece of bamboo or bamboo fiber that has been softened in high-temperature steam by heating bamboo pieces or bamboo fibers together with an adhesive. Are the shear reinforcement members 31 and 32 made of block-shaped compacted bodies compressed in the orthogonal direction and fixed in shape, substantially equal to the outer diameter of the shear reinforcement member 30 on the contact surface 12a of the cutting tree 10a and the receiving tree 11b? It is a hole formed in each of the insertion tree 10a and the receiving tree 11b slightly larger, and a reinforcing member communication hole is formed by contacting the insertion tree 10a and the receiving tree 11b and communicating the holes 31, 32. .

Hereinafter, a method for joining the wooden structural members will be described with respect to the joint structure by joint joining between the wooden structural members in Embodiment 4 configured as described above.
First, holes 13a and 14a, cutting parts 20 and 21, and hole parts 31 and 32 into which the rod-like member 16 of the connector 15 is inserted are formed in the cutting tree 10a and the receiving tree 11b. Next, the contact surface 12a is smoothed to prevent leakage of the adhesive.
Next, the fitting 15 is fitted into and inserted into the holes 13a and 14a, and the shear reinforcement member 30 is aligned with the hole 31 by combining the fiber direction of the cutting bar 10a and the receiving tree 11b with the fiber direction of the shear reinforcement member 30. 32, the cutting tree 10a and the receiving tree 11a are brought into contact with each other. Next, an adhesive such as resorcinol resin is injected from the branch pipe 18 and the injection of the adhesive is continued until the adhesive is visible from between the outer periphery of the branch pipe 18 and the peripheral walls of the cutting parts 20 and 21.
Next, the cutting parts 20 and 21 can be finished with a putty or the like to join the cutting tree 10a and the receiving tree 11b.

According to the joint structure between the wooden structural members according to the fourth embodiment of the present invention, the following actions are obtained in addition to the actions described in the third embodiment.
(1) Since both the shear reinforcement member 30 and the connector 15 are embedded inside the cutting tree 10a and the receiving tree 11b, the visibility is good, and in the event of a fire, carbonization formed on the surface of the cutting tree 10a and the receiving tree 11b. Since the layers do not burn up to the internal shear reinforcement member 30 and the connector 15 due to the action of the layers, the strength can be maintained even in the event of a fire, and the fire resistance is excellent.

  Here, as the compacted body of the shear reinforcing member 30 inserted into the holes 31 and 32, a member in which protruding claw portions are erected on both sides may be used. In this case, even when the hole portions 31 and 32 are formed larger than the shear reinforcement member 30, the claw portions bite into the bottom portions of the hole portions 31 and 32, so that they are not easily displaced, and the strength of the joint portion can be increased.

  The present invention relates to a shear reinforcement member that joins a plurality of wood structure members made of laminated wood or wood, a joining structure between wood structure members using the same, and a joining method of the wood structure member, because of excellent mechanical strength, The size can be smaller than normal splints and splints, and because it is lighter than steel plates, it is easy to transport and less detracts from aesthetics. It can be easily cut with a saw or chain saw when dismantling the building, and the parts can be reused. Easy to recycle, excellent in reusability and recyclability, and can be drilled integrally with the structural member at the construction site, so that it is possible to prevent rattling that occurs due to the drilling of the tip that anticipates machining errors, and to obtain a highly rigid joint structure In addition, it has bamboo material that prevents condensation and has excellent fire resistance and decay resistance, and has been left without effective industrial use as a material. It is possible to provide shear reinforcement members that can be utilized. Also, when joining long span and large cross-section structural members that form the framework of large-scale wooden buildings such as school facilities and sports facilities, bending strength and shear strength are improved. In addition, it is possible to minimize the incidental work such as the drilling of the connecting hole for the joint to embed the joint and the work of injecting the adhesive. Therefore, it is possible to provide a joint structure between the wood joint members that can prevent the corrosion of the wood structure member, and it is possible to inject an adhesive after fixing the wood structure member, so that a gap is hardly generated on the joint surface. A high joining force can be obtained without leakage of the adhesive, and a wood joining member joining method excellent in joining reliability that can be fixed at a correct dimensional position can be provided.

The perspective view of the shear reinforcement member in Embodiment 1 of this invention Sectional drawing of the principal part of the shear reinforcement member in Embodiment 1 The perspective view of the shear reinforcement member of the modification in Embodiment 1 The perspective view which shows the state before the joint joining between the wooden structure members in Embodiment 2. FIG. The perspective view which shows the state at the time of joint joining The perspective view which shows the joining structure between the wooden structure members in Embodiment 2. FIG. Plan view of joint structure between wood structure members in embodiment 2 Sectional drawing of the joining structure between the wooden structural members in the AA line The figure which shows the state before joint joining between the wooden structure members in Embodiment 3. The perspective view which shows the joining structure between the wooden structure members in Embodiment 3. The figure which shows the state before joint joining between the wooden structure members in Embodiment 4. FIG.

Explanation of symbols

1, 1a, 1b, 30 Shear reinforcement member 2 Consolidation body 3 Contact body 4 Support body 5 Support hole portion 6 Recessed portion 7, 7a Claw portion 10, 10a Cutting tree 11, 11a, 11b Receiving tree 12, 12a Contact surface 13 , 13a, 14, 14a Hole 15 Joint 16 Rod-shaped member 17 Hollow part 18 Branch pipe 19 Branch pipe hollow part 20, 21 Cutting part 22 Joint communication hole 23 Through hole 24 Bolt 25 Nut 26 Adhesive

Claims (7)

  One piece of bamboo, or a plurality of bamboo pieces or bamboo fibers and an adhesive are heated, and a compact is formed by compression molding in the direction perpendicular to the direction of the bamboo pieces or the fibers of the bamboo fibers. Shear reinforcement member.   The shear reinforcement member according to claim 1, wherein the compacted body includes a claw portion erected on one side or both sides.   The compacted body includes a contact body in contact with a bottom portion of the claw portion, and a support body in which a support hole is formed and stacked on one or both sides of the contact body, and the claw portion includes The shear reinforcement member according to claim 2, wherein the shear reinforcement member is inserted into the support hole portion formed in the support body.   (A) a plurality of wood structure members made of laminated timber and wood, (b) a joint communication hole perforated on the contact surface of the wood structure member, and (c) the joint communication hole. A fitting provided with a wooden or bamboo-like rod-shaped member, and a hollow portion formed in the longitudinal direction of the rod-shaped member and opened at one or both ends of the rod-shaped member; An adhesive that is injected into the hollow portion and flows out from one or more openings of the rod-shaped member, and is filled between the surface of the rod-shaped member and the peripheral wall of the communication hole for the connector; And a shear reinforcement member according to any one of claims 1 to 3, wherein the joining structure is provided between the wood structure members.   (A) a plurality of wood structure members made of laminated lumber or wood; (b) a connector communication hole and a reinforcement member communication hole drilled in pairs on the contact surface of the wood structure member; A connector comprising a wooden or bamboo-like rod-shaped member attached to the communication hole for the connector, and a hollow portion formed in the longitudinal direction of the rod-shaped member and opened at one or both ends of the rod-shaped member; d) the shear reinforcement member according to any one of claims 1 to 3 mounted in the communication hole for the reinforcement member; and (e) one or more of the rod-like members injected into the hollow portion of the connector. A bonding structure between the wooden structural members, comprising an adhesive that flows out from the opening of the rod and is filled between a surface of the rod-shaped member and a peripheral wall of the communication hole for the connector.   (A) A connecting hole for a connecting tool having substantially the same diameter as that of the connecting tool including a wood-like or bamboo-like member and a hollow portion formed in the longitudinal direction of the rod-like member and opened at one or both ends of the rod-like member. A step of perforating a pair of holes forming a plurality of predetermined portions of the contact surfaces of the plurality of wood structure members, and (b) attaching each of the joints to each of the holes perforated in the step. And (c) a step of fixing the shear reinforcement member according to any one of claims 1 to 3 to a side surface of the wooden structure member across the contacted wooden structure member. And (d) injecting an adhesive into the hollow portion of the connector mounted in the communication hole for the connector and allowing the adhesive to flow out from one or more openings of the rod-shaped member and the surface of the rod-shaped member and the connector And a step of filling the peripheral wall portion of the communication hole with the adhesive. Method for joining wooden structural member.   (A) A connecting hole for a connecting tool having substantially the same diameter as that of the connecting tool including a wood-like or bamboo-like member and a hollow portion formed in the longitudinal direction of the rod-like member and opened at one or both ends of the rod-like member. And a pair of holes forming a reinforcing member communication hole having substantially the same size as the shear reinforcing member according to any one of claims 1 to 3, wherein A step of perforating each predetermined portion of the contact surface; (b) attaching the joint and the shear reinforcement member to each hole perforated in the step, and abutting each wood structure member; and (c) Adhesive is injected into the hollow portion of the connector mounted in the connector communication hole and flows out from one or more openings of the rod member, and the surface of the rod member and the peripheral wall of the connector communication hole. And a step of filling the adhesive with the adhesive. Method of bonding.

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