JP2006063525A - Connecting reinforcing structure of ligneous member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connecting reinforcing structure of ligneous members, having high deforming performance, superior in earthquake resistance, without causing the so-called surface peeling breakdown reaching breakdown by tearing off a surface layer of the ligneous members by a fiber material, restraining local strain and stress concentration, and easy in separation in disassembling. <P>SOLUTION: A reinforcing bar body 3 is inserted over mutual elongate holes 1b and 2b arranged in its axial direction in mutual connecting end parts 1a and 2a of the mutually connected ligneous members 1 and 2. A connecting bar body 4 is inserted over a through-hole 3a for penetrating through its reinforcing bar body 3 and arranged in the direction for crossing the axial direction of the reinforcing bar body 3 and through-holes 1c and 2c arranged in the direction for crossing the axial direction of the ligneous members 1 and 2 in response to the through-hole 3a. A highly ductile fiber material 5 is wound on, reinforced by and fastened to the outer periphery of the mutual connecting end parts 1a and 2a of the ligneous members 1 and 2 for internally installing the reinforcing bar body 3 without adhering to the ligneous members 1 and 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a connection reinforcing structure for wooden members used in a building structure.

  As a wooden member of a building structure, higher strength and toughness are required as the structure becomes larger and taller. In particular, it is necessary to avoid brittle fracture and allow a safety factor in the joint. In order to reinforce a wooden member and to have higher proof stress and toughness, it is often used as a composite material with other materials.

  As a material to be recombined, steel plate, FRP (Fiber Reinforced Plastics) sheet in which fibers are impregnated with resin have been proposed, and in particular, FRP sheets in the direction perpendicular to the axial direction of the wooden member at joints. It has been studied to reinforce by winding (for example, see Patent Document 1). This Patent Document 1 discloses a method for reinforcing a wood member in which the surface of a wood member requested to be reinforced is reinforced with an FRP sheet in combination with an adhesive as a method for reinforcing a joint portion between the wood members.

  As the FRP sheet used here, carbon fiber, aramid fiber, glass fiber or the like is used, and as the resin, a thermoplastic resin such as epoxy is used as a bonding and adhesive. Since carbon fiber, aramid fiber, glass fiber, etc. are easily damaged and cause strength reduction or breakage due to external damage, when reinforcing a wooden member with a rectangular cross section, first of all, the wood of the rectangular cross section is used for the purpose of removing sharp corners. The corner of the member is chamfered into a circle having a diameter of about 10 mm to 30 mm. This operation generates dust and noise. Then, it is common to bond an FRP sheet to the surface of the wooden member. In some cases, FRP sheets were stacked and bonded to form necessary layers in order to exhibit necessary performance. Thereby, the rigidity and proof stress of the wooden member can be improved to some extent.

Japanese Patent Laid-Open No. 10-37483

  However, in the above-described conventional example, when an external force such as an earthquake is applied, if the wooden member is further damaged, a crack or a crack is generated and the volume is expanded. At this time, since the FRP sheet and the wooden member are firmly adhered with an adhesive, local strain and stress concentration are generated in the FRP sheet as the reinforcing material. Since the wooden member is more fragile than FRP, the surface layer of the wooden member is peeled off by the FRP, and so-called surface peeling failure occurs. Further, local strain and stress concentration generated in the FRP sheet cause the FRP sheet to break when the fiber elongation performance is low, leading to the destruction of the wooden member.

  This is because the FRP sheet having low elongation performance is bonded with a resin adhesive to reinforce the wooden member. Due to such destruction, sufficient toughness could not be ensured by the reinforcement with the conventional FRP sheet.

  Failure due to the breakage of the reinforcing material momentarily loses its proof stress, so it is often very brittle. If an external force such as seismic force exceeds the expected value, the building is likely to collapse. Therefore, it is necessary to avoid breakage of the reinforcing material itself in order to prevent brittle destruction of the wooden structure and prevent the building from collapsing.

  High-strength fibers such as carbon fiber, aramid fiber, and glass fiber used as the conventional FRP sheet have a low elongation performance of 3% or less and a wire diameter of 0.01 mm or less. The strength is reduced to 70% to 15%. In other words, if the on-site FRP is not properly performed, the predetermined strength cannot be exhibited.

  As described above, a resin adhesive is mixed at the construction site and mixed, and then impregnated into the sheet. Therefore, if the accuracy of resin blending and the amount of impregnation into the sheet are not appropriate, the strength cannot be exhibited. In order to ensure that the predetermined strength is exhibited, it takes the skill of the installer and considerable effort. As the resin adhesive used, a dedicated adhesive in consideration of the impregnation property to the fiber was used, which was expensive.

  In addition, these FRPs are easily scratched and cause a decrease in strength or breakage due to external damage. Therefore, there is a drawback that the work efficiency is deteriorated because care is required in handling on site.

  Furthermore, these resin adhesives almost contain an organic solvent and give off a strong odor. Therefore, the construction environment was not only deteriorated, but also the environment in the vicinity of the construction site was adversely affected.

  As described above, FRP sheets such as carbon fibers and aramid fibers are easily scratched and cause a decrease in strength or breakage due to external damage. Therefore, when reinforcing a wooden member having a rectangular cross section, the corners are made circular with a diameter of about 10 mm to 30 mm. It was necessary to chamfer. This operation has problems such as generation of dust and noise, an increase in the number of processes, and the need for a separate tool.

  The FRP sheet depends on the performance of the resin adhesive, and there has been a problem of deterioration in durability and variation in construction quality due to aging of the adhesive.

  Also, epoxy-based resins that are often used as adhesives are difficult to remove without damaging the wooden members once they are cured. When dismantling a reinforced wooden structure, it is a material for disposal and reuse. Therefore, it is difficult to separate the wooden member and the reinforcing member from both the time and the cost.

  The present invention solves the above-mentioned problems, and the object of the present invention is so-called surface delamination failure that results in high deformation performance, excellent seismic resistance, and the surface layer of the wooden member is peeled off by the fiber material to cause destruction. It is intended to provide a connection reinforcing structure for a wooden member that does not occur, suppresses local strain and stress concentration, and can be easily separated at the time of dismantling.

  In order to achieve the above object, a first structure of a connection reinforcing structure for wooden members according to the present invention is a connection reinforcing structure for wooden members, in which the first and second wooden members connected to each other are mutually connected. A reinforcing rod body is inserted through each of the elongated holes provided in the axial direction in the connecting end portion, and a first rod provided in a direction intersecting the axial direction of the reinforcing rod body passing through the reinforcing rod body. Connected across a through hole and a second through hole provided in a direction intersecting the axial direction of the wood member passing through the first and second wood members corresponding to the first through hole A rod body is inserted, and a highly ductile fiber material is wound around the outer periphery of each connection end of the first and second wood members in which the reinforcing rod body is installed without being bonded, and is reinforced and fastened. It is characterized by.

  Further, the second configuration of the connection reinforcing structure for a wooden member according to the present invention is the first configuration in which the axial direction is between the connection end portions of the first and second wooden members. 1. A third wood member disposed in a direction intersecting with the axial direction of the second wood member is disposed, and a third through hole provided in a direction intersecting with the axial direction of the third wood member. A first through hole provided in a direction intersecting with an axial direction of the reinforcing bar body through which the reinforcing bar body is inserted and passing through the reinforcing bar body; and the third through hole corresponding to the first through hole. The third wood member in which a connecting rod is inserted through a second through hole provided in a direction intersecting the axial direction of the wood member penetrating the wood member, and the reinforcing rod body is internally provided It is characterized in that a high ductility fiber material is wound around the outer periphery of the wire without being bonded and reinforced and fastened.

  The third structure of the connection reinforcing structure for wooden members according to the present invention is a connection reinforcing structure for wooden members, and is provided at the connection end portions of the first and second wooden members connected to each other. Connected to each other through a through hole provided in a direction intersecting the axial direction of the first and second wood members passing through the fitting portion. The rod body is inserted, and the high ductility fiber material is wound around the outer periphery of the fitting portion without adhering and reinforced and fastened.

  Moreover, the 4th structure of the connection reinforcement structure of the wooden member based on this invention WHEREIN: The said highly ductile fiber material consists of a polyacetal fiber in the said 1st-3rd structure, It is characterized by the above-mentioned.

  According to the first configuration of the connection reinforcing structure for wooden members according to the present invention, the first and second wooden members and the first and second wooden members provided in the axial direction of each other by the connecting rods. The reinforcing rod body that is installed over the long hole of the first and second wood members is coupled, and the highly ductile fiber material is wound around the outer peripheries of the connection ends of the first and second wood members without being bonded to reinforce them. Can conclude.

  If the high ductility fiber material is reinforced by wrapping it without adhering it to the wood member, the wood material will be damaged, and even if cracks or cracks occur, the high ductility fiber material and the wood material are not attached, so the surface layer of the wood member Is peeled off by the highly ductile fiber material to cause destruction, so-called surface layer peeling failure does not occur, and local strain and stress concentration can be suppressed.

  Further, if a high ductility fiber material having an elongation performance of 5% or more is used, the high ductility fiber material can be prevented from being broken. In order to prevent brittle fracture of the wooden member and prevent the wooden structure from collapsing, it is desirable to avoid breakage of the highly ductile fiber material itself. The use of high ductility fiber material as a reinforcing material without adhering to the wooden member means that the strength of the reinforced wooden structure is not determined by the fracture of the high ductility fiber material, and the ultimate state is reached by bending or shearing the wooden member itself. Become.

  This is very important in maximizing the ability of the wood member and ensuring toughness as a structural member. Even if an external force such as an earthquake exceeds the expected value, the possibility that the wooden structure will collapse is low.

  Further, when a force is applied in the cross section of the wooden member, the connecting rod breaks the wooden member and breaks. It is possible to improve the yield strength and deformation performance of the wooden member by restraining the split cracks with the wound fiber material. For example, a highly ductile fiber material having an elongation performance of 5% or more has a sufficient elongation performance even if a force is applied to a part of the fiber, so that the force can be distributed to the periphery.

  Therefore, a sufficient reinforcing effect can be exhibited without impregnating the resin to form FRP (Fiber Reinforced Plastics). In addition, since no resin adhesive is used, it is not necessary to add resin or impregnate the sheet, so that it does not require the skill of the installer and considerable effort, and the construction period can be shortened. It can be installed easily. Since an expensive resin adhesive is not used, the material cost can be greatly reduced, and an irritating odor caused by an organic solvent is not emitted. Therefore, the construction environment is comfortable and does not adversely affect the environment in the vicinity of the construction site.

  Moreover, since the performance does not depend on the resin adhesive like the FRP sheet, the deterioration of the durability due to the secular change of the adhesive does not become a problem, and the variation in the construction quality can be suppressed. In the present invention, since the high ductility fiber material is not impregnated with resin and only the start and end of the high ductility fiber material are fastened and fixed, the high ductility fiber material can be easily attached to the wooden member even after the construction is completed. Can be removed. In addition, when dismantling a reinforced wooden structure, the dismantling material must be separated for disposal or reuse, but it is easy to separate the wooden member from the highly ductile fiber material simply by unraveling the high ductility fiber material. It shortens the construction period of the demolition work and can greatly reduce the cost. In addition, it is friendly to the global environment because it can be reused.

  A fiber filament for securing a predetermined strength of the fiber material when the highly ductile fiber material that reinforces the wooden member has either a high strength composed of a tensile elastic modulus of 1.0 GPa or more, an average diameter of 0.1 mm or more, or both Alternatively, the number of strands in which the strands are bundled (one obtained by twisting several strands) can be reduced. Therefore, it is possible to reduce the number of times the highly ductile fiber material is wound around the wooden member, reduce the labor for reinforcement, shorten the construction time, and reduce the construction cost.

  The high ductility fiber material has a specific gravity that is a fraction of that of iron compared to steel reinforcement, and the tensile strength per unit cross-sectional area is high, so the cross-sectional area of the reinforcing material to obtain the necessary reinforcing effect Is small and the volume is small. In addition, since there is no need for prior processing such as bending or cutting like steel materials, compact packaging such as wrapping around bobbins is possible. Can be transported. Also, cranes are not required for lifting and subdivision at the construction site, and the cost can be greatly reduced. In addition, high ductility fiber materials are easy to store and manage because there is no risk of rusting like steel materials.

  According to the 2nd structure of the connection reinforcement structure of the wooden member which concerns on this invention, it is provided in the axial direction of the 1st, 2nd, 3rd wooden member and this 1st, 2nd wooden member by the connection rod. The first and second wood members are connected to each other, and the reinforcing rod body is provided to extend through the through holes provided in the direction intersecting the axial direction of the third wood member. A highly ductile fiber material can be wound around the outer periphery of the connection end portion and the outer periphery of the third wood member without being bonded, and can be reinforced and fastened. For example, the present invention can be applied when the first and second wooden members are beam members and the third wooden member is a pillar member.

  According to the 3rd structure of the connection reinforcement structure of the wooden member which concerns on this invention, the mutual fitting part of the 1st, 2nd wooden member is connected by the connection rod, The 1st, 2nd wooden member The highly ductile fiber material can be wound around the outer periphery of the mutual fitting part without bonding and reinforced and fastened.

  According to the fourth configuration of the connection reinforcing structure of the wooden member according to the present invention, the FRP sheet such as carbon fiber or aramid fiber is easily damaged, and the strength is reduced or broken by the damage. When doing so, the corners had to be chamfered to a circle with a diameter of about 10 mm to 30 mm. However, polyacetal fibers can be plastically processed and can be brought into close contact with the corners of a wooden member with a rectangular cross section. Since the elongation rate is high, the polyacetal fiber does not break before the wooden member breaks. Therefore, it is not necessary to chamfer corners when reinforcing a wooden member having a rectangular cross section, the process can be omitted, the construction period can be shortened, and the cost can be reduced.

  For example, when reinforcing with a polyacetal fiber having a breaking elongation of 8% or more, a tensile elastic modulus of 35 GPa, and an average diameter of 0.9 mm, the construction is once completed because only the fixing portion of the polyacetal fiber is fastened. Later, the polyacetal fiber can be easily removed. When dismantling a reinforced wooden structure, the dismantling material must be separated for disposal or reuse, and the ability to easily separate the wooden member and the reinforcing material is a great advantage in terms of time and cost. In addition to being friendly to the global environment.

  Since polyacetal fibers are highly ductile, there is no reduction in strength even if they are not bonded with a resin. Therefore, it is unnecessary to impregnate the resin and integrate it as FRP (Fiber Reinforced Plastics).

  Since plastic working is possible, the machined shape tends to remain and residual deformation occurs. When arranging along the outer peripheral shape of the wooden member having a rectangular cross section, a gap is hardly generated even at the corner, and the workability is good. Furthermore, the polyacetal fiber has a break elongation rate of 3% or less for carbon fibers and aramid fibers, whereas it has a very high elongation performance with a break elongation rate of 8% or more. Therefore, it can be easily fixed by making it wrap around a steel rod having an average diameter of 10 mm or less, or by connecting the ends of the fibers to each other or steel rods.

  It is conceivable that rebars and tools come into contact with the fiber at the construction site during fiber reinforcement construction, but damage is caused by polyacetal fiber, which has excellent wear resistance and cut resistance, and is resistant to scratches, so that the yield strength of the fiber decreases or breaks. There is nothing. Similarly, it is easy to store and handle on site. If fibers with a high water absorption rate are used as the reinforcing material, there is a concern that the fibers absorb water and the performance deteriorates, but the polyacetal fiber has a very low water absorption rate and almost no water absorption, so the expected fiber performance is It can be demonstrated.

  Furthermore, since polyacetal fiber does not conduct electricity, stray current does not occur even during lightning strikes, and does not adversely affect electrical appliances installed in the structure. Since rust and alkali resistance are also high, even if it is coated with a paint or gypsum board as a finishing material, there is no problem in compatibility with them and it has sufficient durability. Furthermore, since it is excellent in oil resistance and organic solvent resistance, it is safe against corrosion.

  An embodiment of a connection reinforcing structure for wood members according to the present invention will be specifically described with reference to the drawings. Fig.1 (a)-(c) is the plane, front, and side explanatory drawing which show the structure of 1st Embodiment of the connection reinforcement structure of the wooden member which concerns on this invention.

  First, the structure of 1st Embodiment of the connection reinforcement structure of the wooden member based on this invention is demonstrated using FIG. In FIG. 1, in the connection end portions 1a and 2a of the wood members 1 and 2 connected to each other, in the axial direction of the wood members 1 and 2 (left and right directions in FIGS. 1A and 1B). Long holes 1b and 2b are provided, and a reinforcing bar 3 made of a steel rod or the like is inserted through the long holes 1b and 2b.

  The reinforcing bar 3 is provided in a direction (vertical direction in FIG. 1A) that intersects the axial direction of the reinforcing bar 3 penetrating the reinforcing bar 3 (left and right direction in FIG. 1A). A through-hole 3a is provided, and the wooden members 1 and 2 correspond to the through-hole 3a of the reinforcing bar 3 in a direction intersecting the axial direction of the wooden members 1 and 2 (up and down in FIG. 1A). In the direction), through holes 1c and 2c provided through the wooden members 1 and 2 are provided. A connecting rod 4 such as a wood material is inserted through the through holes 1c and 2c of the wooden members 1 and 2 and the through hole 3a of the reinforcing rod 3 so that the wooden members 1 and 2 are integrated.

  Then, the highly ductile fiber material 5 is continuously wound in a spiral shape on the outer periphery of the connecting end portions 1a and 2a of the wooden members 1 and 2 in which the reinforcing bar 3 is installed, without being bonded to the wooden members 1 and 2. It is reinforced by turning and intersecting, and its start and end are fastened and fixed. Reference numeral 5 a denotes a fastening portion between the start end and the end of the highly ductile fiber material 5.

  Polyacetal fibers are preferably used as the high ductility fiber material 5, but nylon fibers, polyethylene fibers, polyester fibers, polypropylene fibers, PVA (polyvinyl alcohol), etc. can be applied in addition to the polyacetal fibers. An appropriately combined material may be used.

  The beginning and the end of the high ductility fiber material 5 wound around the outer periphery of the wooden members 1 and 2 are connected and fixed to each other, or a fixing bracket is disposed on the wooden members 1 and 2 to fix the end of the high ductility fiber material 5. May be. The surfaces of the high ductility fiber material 5 and the wooden members 1 and 2 are basically not bonded, but the high ductility fiber material 5 may be bonded to each other using an adhesive only at the overlapping portion of the high ductility fiber material 5. .

  It is also possible to tension the high ductility fiber material 5 by fixing the start end and the end of the high ductility fiber material 5 to the turnbuckle and adjusting the length of the turnbuckle.

  The highly ductile fiber material 5 may be disposed corresponding to the position of the connecting rod body 4, or may be set at a constant interval regardless of the position of the connecting rod body 4. Moreover, as shown in FIG. 1, you may reinforce by winding continuously in a spiral. It is effective to make the amount of reinforcement for each position correspond to the magnitude of the moment or force considered to act. Further, the portion reinforced with the high ductility fiber material 5 may be further reinforced with a steel plate or the like, or the portion reinforced with the steel plate or the like may be reinforced by winding the high ductility fiber material 5 thereon.

  The wood members 1 and 2 reinforced by such a connection reinforcing structure may be, for example, general timber such as bay pine and cedar, or a laminated material such as bay pine. The connecting rod 4 may be a wooden plug or the like.

  The wooden members 1 and 2 can be used without limitation on each part such as a pillar, beam, foundation, floor, wall, etc., but are suitable for use in a part where moments and forces such as joints act greatly. As a structure to be applied, it can be used for a building, a work, a civil engineering structure, and the like.

  Next, the structure of 2nd Embodiment of the connection reinforcement structure of the wooden member based on this invention is demonstrated using FIG. FIGS. 2A to 2C are plan, front, and side explanatory views showing the configuration of the second embodiment of the connection reinforcing structure for wooden members according to the present invention. In addition, what was comprised similarly to the said 1st Embodiment attaches | subjects the same code | symbol, and abbreviate | omits description.

  In this embodiment, as shown in FIG. 2, the axial direction is between the connecting end portions 1a, 2a of the wooden members 1, 2 shown in FIG. 2 (b) in the direction intersecting (the vertical direction in FIG. 2 (b)), and the axial direction of the wooden member 6 (the vertical direction in FIG. 2 (b)). A through hole 6a is provided in a direction intersecting with the left and right direction in FIG. 2 (b), and the reinforcing rod 3 inserted into the long holes 1b and 2b of the wooden members 1 and 2 is formed in the through hole 6a of the wooden member 6. Is also inserted.

  Corresponding to the through hole 3a penetrating the reinforcing bar 3, the wooden member 6 is placed in a direction (vertical direction in FIG. 2A) intersecting the axial direction of the wooden member 6 (paper surface direction in FIG. 2A). A through-hole 6b that penetrates is provided, and the connecting rod 4 is inserted through the through-hole 3a that penetrates the reinforcing rod 3 and the through-hole 6b that penetrates the wooden member 6, and the wooden members 1, 2, 6 are integrated. It has become.

  Then, the highly ductile fiber material 5 is wound around the outer periphery of the wooden member 6 in which the reinforcing rod body 3 is installed without being bonded to the wooden member 6 to be reinforced and fastened. If the wooden member 6 is a column and the wooden members 1 and 2 are beams, a joining example of a column and a beam arranged through a hierarchy can be obtained. Other configurations are substantially the same as those of the first embodiment shown in FIG. 1, and the same effects can be obtained.

  Next, the configuration of the third embodiment of the connection reinforcing structure for wooden members according to the present invention will be described with reference to FIGS. 3 (a) to 3 (c) are plan, front and side explanatory views showing the configuration of the third embodiment of the connection reinforcing structure for wooden members according to the present invention, and FIG. 4 shows the load by the test specimen having the configuration of FIG. It is a figure which shows the relationship with the amount of bending. In addition, what was comprised similarly to the said 1st Embodiment attaches | subjects the same code | symbol, and abbreviate | omits description.

  In FIG. 3, fitting ends 1d and 2d are provided at the connecting ends 1a and 2a of the wood members 1 and 2 connected to each other, and the fitting portions 1d and 2d are brought into contact with each other in the thickness direction. The wooden members 1 and 2 passing through the fitting portions 1d and 2d are provided in a direction (vertical direction in FIG. 3A) that intersects the axial direction (horizontal direction in FIG. 3A). The connecting rod 4 is inserted through the through holes 1e and 2e.

  And the high ductility fiber material 5 is wound around the outer periphery of each fitting part 1d and 2d, without adhering to the wooden members 1 and 2, and is reinforced and fastened. Other configurations are substantially the same as those of the first embodiment shown in FIG. 1, and the same effects can be obtained.

  For example, the wooden members 1 and 2 shown in FIG. 3 are beam members made of bay pine laminated wood having a cross section of 120 mm × 300 mm, and a predetermined bending moment is applied to a joint portion around which the highly ductile fiber material 5 is wound by a loading test apparatus (not shown). An experiment was carried out to cause the joint of the beam member to break. The polyacetal fiber used as the high ductility fiber material 5 has a breaking elongation of 8% or more, a tensile elastic modulus of 35 GPa and an average diameter of 0.9 mm, and the periphery of the connecting rod 4 is formed three times each in one place. The polyacetal fiber is wound around a total of five places, and the start end and the end end are knotted and fastened and fixed.

  When the high ductility fiber material 5 is not reinforced, the proof strength suddenly decreases after the fracture strength in the axial direction of the wooden members 1 and 2 at the position of the connecting rod 4 and reaches the maximum strength, but the high ductility fiber material The test specimen reinforced with 5 continued to increase in yield strength even after splitting of the wooden members 1 and 2, and the maximum yield strength increased about 1.5 times compared to the test specimen not reinforced with the high ductility fiber material 5. .

  In addition, after the maximum yield strength, the deformation progressed without any significant decline in yield strength, and the properties were extremely rich in toughness. The high ductility fiber material 5 did not break until the end of loading, and the experiment was terminated due to the measurement limit of the loading test apparatus.

  As an application example of the present invention, the present invention can be applied to a connection reinforcing structure of a wooden member used in each part such as a pillar, a beam, a foundation, a floor, or a wall used in a building structure.

It is a plane, front, and side explanatory view showing composition of a 1st embodiment of a connection reinforcement structure of a wood member concerning the present invention. It is the plane, the front, and side explanatory drawing which show the structure of 2nd Embodiment of the connection reinforcement structure of the wooden member which concerns on this invention. It is the plane, front, and side explanatory drawing which show the structure of 3rd Embodiment of the connection reinforcement structure of the wooden member which concerns on this invention. It is a figure which shows the relationship between the load and bending amount by the test body of the structure of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 2 ... Wood member 1a, 2a ... Connection end part 1b, 2b ... Long hole 1c, 2c ... Through-hole 1d, 2d ... Fitting part 1e, 2e ... Through-hole 3 ... Reinforcing bar 3a ... Through-hole 4 ... Connection Rod 5 ... Highly ductile fiber material 5a ... Fastening part 6 ... Wood member 6a ... Through hole

Claims (4)

A connection reinforcing structure for wooden members,
The reinforcement rod body is inserted through the long holes provided in the axial direction in the connection end portions of the first and second wood members connected to each other and penetrates the reinforcement rod body. A first through hole provided in a direction intersecting the axial direction of the rod, and an axial direction of the wooden member passing through the first and second wooden members corresponding to the first through hole The connecting rod body is inserted through the second through hole provided in the direction to be connected, and the first and second wood members in which the reinforcing rod body is installed have high ductility on the outer periphery of the mutual connection end portion. A connection reinforcing structure for a wooden member, characterized in that a fiber material is wound without being bonded and reinforced and fastened. Between the connection ends of the first and second wood members, a third wood member is disposed, the axial direction of which is arranged in a direction intersecting with the axial direction of the first and second wood members. The reinforcing rod body is inserted into a third through hole provided in a direction intersecting the axial direction of the third wooden member, and the direction intersecting the axial direction of the reinforcing rod body passing through the reinforcing rod body And a second through hole provided in a direction intersecting the axial direction of the wooden member passing through the third wooden member corresponding to the first through hole. A connecting rod body is inserted over the outer periphery of the third wood member in which the reinforcing rod body is installed, and a highly ductile fiber material is wound around the outer periphery without being bonded, and is reinforced and fastened. Item 3. A reinforcing structure for connecting wooden members according to Item 1. A connection reinforcing structure for wooden members,
The fitting portions provided at the connection end portions of the first and second wood members connected to each other are brought into contact with each other in the thickness direction, and the first and second penetrating through the fitting portions. The connecting rods are inserted through the through holes provided in the direction intersecting the axial direction of the wood member, and the high ductility fiber material is wound around the outer periphery of the fitting portion without adhering and reinforced. The connection reinforcement structure of the wooden member characterized by having been fastened. The connection reinforcing structure for a wooden member according to any one of claims 1 to 3, wherein the highly ductile fiber material is made of polyacetal fiber.