Method for joining beam materials in which sleeves of wooden members are formed

Abstract

To provide a method for joining beam materials in which sleeves of wooden members are formed, which can exhibit highly strong and highly rigid performance even when the sleeves are present.SOLUTION: A sleeve groove 14 is cut in each of the ends of beam materials so as to form a circular sleeve 13 when the ends 12 of the sleeves 11 to be joined are butted together, insertion holes 16 for inserting connection steel rods are bored in the upper and lower parts of the end of the beam material, the connection steel rods 15 are inserted into the insertion holes, the ends of the beam materials are butted together to form a sleeve, adhesives are poured in gaps between the insertion holes and the connection steel rods, reinforcement plates 17 and 18 are stuck over both the beam materials to the upper and lower ends of the connected beam materials, a high-tension fiber sheet 19 is wound over the reinforcement plates of the upper and lower ends, and the high-tension fiber sheet is cut along the shape of the sleeve.SELECTED DRAWING: Figure 1-3

Description

[Technical field]

[0001] The present invention relates to a method for joining beams in which sleeves are formed in wooden members. [Background technology]

[0002] Conventionally, when installing a piping sleeve on a wooden beam without reinforcing it, the guideline is that the position should be within the central third of the beam's depth, and the sleeve diameter should be no more than one-quarter of the beam's depth and 150 mm or less. This guideline is shown in the section entitled "Reduction in beam cross-sectional performance due to loss of through holes" in "Technical data on wooden school buildings using JIS A 3301 - Ministry of Education, Culture, Sports, Science and Technology, March 2015" (see Non-Patent Document 1). Therefore, when drilling a sleeve with a diameter exceeding 150 mm into a wooden beam, it is necessary to reinforce the beam to compensate for the cross-sectional loss caused by the sleeve and to confirm safety through structural calculations. Meanwhile, under the current Building Standards Act, high-tensile fiber sheets, which have high tensile strength and high strength, can in principle only be used in earthquake-resistance renovation work on existing buildings. However, in the case of a joining method that uses high-tensile fiber sheets, based on the provisions of Article 47, Paragraph 1 of the Enforcement Order of the Building Standards Act, "Construction methods of wooden joints and connections," it is possible for them to be used on newly built wooden beams to reinforce joints and connections. [Prior art documents] [Non-patent literature]

[0003] [Non-Patent Document 1] "Technical information on wooden school buildings using JIS A 3301 - March 2015, Ministry of Education, Culture, Sports, Science and Technology" Summary of the Invention [Problem to be solved by the invention]

[0004] When installing a sleeve for a kitchen air supply and exhaust duct on a wooden beam in a wooden building, a sleeve opening of 300φ or more is required, including the fireproof coating inside the sleeve and the insulation of the piping, but as shown in the above guideline, there are restrictions such as the need to reinforce the beam and confirm safety through structural calculations.Also, there are design restrictions such as installing a piping duct under the beam or under the floor. In addition, when providing a sleeve that will cause a cross-sectional defect in a beam, even if the plan calls for the sleeve to be provided near the wall, i.e., near the end of the beam, it is said to be undesirable to provide the sleeve near the joint of the beam where stress is concentrated.

[0005] The present invention has been proposed to solve the above-mentioned problems, and provides a method for joining beams in which sleeves are formed in wooden components, which reinforces the cross-sectional defects at the connection parts and allows the beams to exhibit high strength and high rigidity performance despite the presence of the sleeve. [Means for solving the problem]

[0006] The gist of the present invention for solving the problems of the conventional example is a method for joining beams in which a sleeve is formed in wooden components, comprising the steps of: cutting semicircular sleeve grooves in the ends of the beams so that a circular sleeve is formed when the ends of the beams to be joined are butted together; drilling insertion holes above and below the ends of the beams for inserting connecting steel rods; inserting the connecting steel rods into the insertion holes and butting the ends of the beams together to form the sleeve; injecting adhesive into the gap between the insertion holes and the connecting steel rods; attaching or fastening reinforcing plates to the upper and lower ends of the beams that are butted together, across both of the beams; wrapping a high-tensile fiber sheet in one or more layers around the reinforcing plate at the upper end and the reinforcing plate at the lower end; and cutting out the high-tensile fiber sheet along the shape of the sleeve.

[0007] The reinforcing plate is a high-tensile fiberboard or steel plate formed into a plate shape or bent into a U-shape; It includes.

[0008] The gist of the present invention for solving the problems of the conventional example is a method for joining beams in which a sleeve is formed in wooden members, comprising cutting each end of the beams so that a rectangular sleeve is formed when the ends of the beams to be joined are butted together, drilling insertion holes above and below the ends of the beams for inserting connecting steel rods, inserting the connecting steel rods into the insertion holes and butting the ends of the beams together to form the sleeve, injecting adhesive into the gap between the insertion holes and the connecting steel rods, attaching or fastening reinforcing plates to the upper and lower ends of the beams that are butted together, and connecting the beams together, wrapping a high-tensile fiber sheet in one or more layers around the reinforcing plate at the upper end and the upper part of the sleeve, and around the reinforcing plate at the lower end and the lower part of the sleeve, and further wrapping a high-tensile fiber sheet in one or more layers around the reinforcing plate at the upper end and the reinforcing plate at the lower end.

[0009] Also, the end of the beam is cut to form a concave sleeve groove, and the rectangular sleeve is formed by butting the concave sleeve grooves together; cutting the ends of the beam material to form a convex portion at one end and a concave portion at the other end, and forming the rectangular sleeve at a gap portion where the convex portion and the concave portion are fitted together; It includes. Effect of the Invention

[0010] According to the method of joining beams in which a sleeve is formed in wooden components of the present invention, a semicircular sleeve groove is cut into the ends of the beams so that a circular sleeve is formed when the ends of the beams to be joined are butted together, insertion holes are drilled above and below the ends of the beams for inserting connecting steel rods, the connecting steel rods are inserted into the insertion holes and the ends of the beams are butted together to connect them, adhesive is injected into the gap between the insertion holes and the connecting steel rods, reinforcing plates are attached or fastened to the upper and lower ends of the beams that are butted together, a high tensile fiber sheet is wrapped in one or more layers around the reinforcing plates at the upper and lower ends, and the high tensile fiber sheet is cut out to follow the shape of the sleeve, thereby providing a sleeve at the joint between the beams. In other words, this has the excellent effect of providing a method for joining beam materials that reinforces the cross-sectional loss at the connection portion and exhibits high strength and high rigidity performance even in the presence of a sleeve.

[0011] Furthermore, when a rectangular sleeve is formed, the high tensile fiber sheet is wound in single or multiple layers around the reinforcing plate at the upper end and the upper part of the sleeve, the high tensile fiber sheet is wound in single or multiple layers around the reinforcing plate at the lower end and the lower part of the sleeve, and further the high tensile fiber sheet is wound in single or multiple layers around the reinforcing plates at the upper and lower ends.This results in the upper and lower parts of the sleeve being wrapped with the high tensile fiber sheet, providing the excellent effect of providing even stronger reinforcement against cross-sectional defects at the connection parts. [Brief description of the drawings]

[0012] [Figure 1-1] FIG. 2 is a front view of a joint portion illustrating a method of joining beams in which a sleeve is formed in the wooden member according to the first embodiment of the present invention. [Figure 1-2] 1 is a cross-sectional view taken along line AA in FIG. 1-1. [Figure 1-3] 1A, 1B, 1C and 1D are perspective views illustrating the steps of a method for joining beam members in which a sleeve is formed in wooden members according to a first embodiment of the present invention. FIG. [Figure 2-1]FIG. 11 is a front view of a joint portion illustrating a method of joining beams in which a sleeve is formed in a wooden member according to a second embodiment of the present invention. [Figure 2-2] 2-1 is a cross-sectional view taken along line BB in FIG. [Figure 2-3] 13(a)(b)(c)(d) are perspective views illustrating the steps of a method for joining beam members in which a sleeve is formed in wooden members according to a second embodiment of the present invention. FIG. [Figure 3-1] FIG. 13 is a front view of a joint portion illustrating a method of joining beams in which a sleeve is formed in a wooden member according to a third embodiment of the present invention. [Figure 3-2] 3 is a cross-sectional view taken along line CC in FIG. 3-1. [Figure 3-3] 13(a)(b)(c)(d) are perspective views illustrating the steps of a method for joining beam members in which a sleeve is formed in wooden members according to a third embodiment of the present invention. FIG. [Figure 4-1] FIG. 13 is a front view of a joint portion illustrating a method of joining beams in which a sleeve is formed in a wooden member according to a fourth embodiment of the present invention. [Figure 4-2] 13(a)(b)(c)(d) are perspective views illustrating the steps of a method for joining beam members in which a sleeve is formed in wooden members according to a fourth embodiment of the present invention. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] Next, an embodiment of the present invention will be described with reference to the drawings. The present invention relates to a method for joining beams in which a sleeve is formed in a wooden member, and the method for joining beams is capable of reinforcing a cross-sectional defect in the joint between the beams, thereby realizing high strength and high rigidity performance even with the sleeve. EXAMPLES

[0014] The method of joining beams in which sleeves will be formed in this wooden component is to first cut semicircular sleeve grooves 14 into the ends 12 of the beams 11 to be joined so that a circular sleeve 13 will be formed when the ends 12 of the beams 11 are butted together, as shown in Figures 1-3 (a) and (b). Then, insertion holes 16 are drilled above and below the ends 12 of the beams 11 for inserting connecting steel bars 15 therein. In the following drawings, the connecting steel bars 15 and the insertion holes 16 are drawn with solid lines for ease of understanding, but in reality they are steel bars or holes provided inside the beam material 11.

[0015] Next, as shown in FIG. 1-3(b), a connecting steel bar 15 is inserted into the insertion hole 16, and the ends 12 of the beams 11 are butted together to connect them together, thereby forming a sleeve 13.

[0016] Then, an adhesive such as epoxy resin is injected into the gap between the insertion hole 16 and the connecting steel bar 15. The method of injecting the adhesive will be described. As shown in FIG. 1-3(a), an injection hole 20a for adhesive 20c is formed from the side of one beam material 11 to the tip of the insertion hole 16, and the adhesive 20c is injected through the injection hole 20a (see FIG. 1-1). In addition, a confirmation hole 20b for the adhesive 20c is formed from the side surface of the other beam material 11 to the tip of the insertion hole 16, and whether or not the filling of the adhesive 20c has been completed is confirmed by the adhesive being ejected from the confirmation hole 20b (see Figure 1-1). In addition, the injection hole 20a and the confirmation hole 20b are drawn with solid lines for ease of understanding, but in reality, they are holes formed inside the beam material 11. In each of Figures 1-3(b), (c), and (d), the injection hole 20a and the confirmation hole 20b are omitted.

[0017] Next, as shown in FIG. 1-3(b), reinforcing plates 17, 18 are attached or fastened to the upper and lower ends of the beams 11 that are butt-jointed and connected together. Specifically, the reinforcing plate 17 is a high-tensile fiber plate such as a carbon fiber plate, an aramid fiber plate, or a glass fiber plate, or a steel plate, and is formed into a long plate shape. In the case of pasting, the plate is attached using adhesive or the like, and in the case of fastening, the plate is fastened with screws or the like.

[0018] Next, as shown in FIG. 1-3(c), a high tensile fiber sheet 19 is wound in one or more layers around the reinforcing plate 17 at the upper end and the reinforcing plate 18 at the lower end, and then bonded and fixed with an adhesive such as an epoxy resin adhesive. Further, the high tensile fiber sheet 19 is disposed so that the fiber direction of the high tensile fiber sheet is in the short side direction of the beam material 11 (the direction of the arrow S) as shown in FIG. 1-1.

[0019] Furthermore, after the adhesive has hardened and the beam material 11 and the high tensile fiber sheet 19 have become one, the wrapped high tensile fiber sheet 19 is cut out along the shape of the circular sleeve 13 with a cutting tool such as a cutter to reveal the sleeve 13, as shown in Figure 1-3 (d). 1-3(b), (c), and (d), the shape of the sleeve 13 is drawn in solid lines for ease of understanding. The same applies to the following drawings. EXAMPLES

[0020] Next, a method for joining beams in which sleeves are formed in wooden members according to the second embodiment shown in Figures 2-1 to 2-3 will be described. In this second embodiment, the same parts as those in the first embodiment are given the same reference numerals and their details will be omitted.

[0021] The reinforcing plates 21, 22, like the reinforcing plates 17, 18 of the first embodiment, are made of high tensile fiber plates such as carbon fiber plates, aramid fiber plates, glass fiber plates, etc., or steel plates. The reinforcing plates 21, 22 have a required length, and are bent at both ends to form an approximately U-shape so as to completely cover the upper and lower ends of the beam material 11. The reinforcing plates 21, 22 thus configured are attached or fastened across both beam materials 11. When attached, they are attached using an adhesive or the like, and when fastened, they are fastened with screws or the like.

[0022] The cutting of the sleeve groove 14 in the end 12 of the beam material 11, the drilling of the insertion hole 16 for inserting the connecting steel rod 15, the insertion of the connecting steel rod 15 into the insertion hole 16, the formation of the sleeve 13 by butting the end portions 12 of the beam material 11 together, and the injection of adhesive into the gap between the insertion hole 16 and the connecting steel rod 15 are the same as in the first embodiment. In each figure, the injection hole 20a and the confirmation hole 20b are omitted (see Fig. 1-3(A)). In addition, the winding of the high tensile fiber sheet 19 across the reinforcing plate 17 at the upper end and the reinforcing plate 18 at the lower end, the direction of the fibers when winding the high tensile fiber sheet 19, and the work of cutting the high tensile fiber sheet 19 with a cutter to reveal the sleeve 13 are also the same as in the first embodiment. EXAMPLES

[0023] Next, a method for joining beams in which sleeves are formed in wooden members according to the third embodiment shown in Figures 3-1 to 3-3 will be described. In this third embodiment, the same parts as those in the first embodiment are given the same reference numerals and their details will be omitted.

[0024] The method of joining beams in which sleeves will be formed in this wooden component is to first cut a concave sleeve groove 24 into each end 12 of the beams 11 to be joined so that a square sleeve 23 is formed when the end 12 of each beam 11 to be joined is butted against each other, as shown in Figures 3-3 (a) and (b).

[0025] Next, as shown in FIG. 3-3(b), the connecting steel rods 15 are inserted into the insertion holes 16, and a rectangular sleeve 23 is formed between the butt-jointed connected beams 11.

[0026] Then, an adhesive such as epoxy resin is injected into the gap between the insertion hole 16 and the connecting steel bar 15. The method of injecting the adhesive is the same as in the first embodiment (see Fig. 1-1 and Fig. 1-3(a)).

[0027] Next, as shown in FIG. 3-3(b), reinforcing plates 17, 18 are attached or fastened to the upper and lower ends of the beams 11 that are butt-jointed and connected together.

[0028] Then, as shown in Fig. 3-3(c), a high tensile fiber sheet 19a is wound in single or multiple layers around the reinforcing plate 17 at the upper end and the upper part 23a of the sleeve 23. Then, a high tensile fiber sheet 19b is wound in single or multiple layers around the reinforcing plate 18 at the lower end and the lower part 23b of the sleeve 23 (see Fig. 3-3(b)). Furthermore, on one side (left side in Figure 3-3(c)) and on both sides (right side in Figure 3-3(c)) of the sleeve 23, a high tensile fiber sheet 19c is wound in a single or multiple layers from the reinforcing plate 17 at the upper end to the reinforcing plate 18 at the lower end. The wrapped high tensile fiber sheets 19a, 19b, 19c are bonded and fixed with an adhesive such as an epoxy resin adhesive. Moreover, the high tensile fiber sheets 19a, 19b, and 19c are arranged so that the fiber direction of the high tensile fiber sheets is in the short side direction of the beam material 11 (the direction of the arrow S) as shown in FIG. 3-1. The winding of the high tensile fiber sheets may be performed in the following order: first, high tensile fiber sheet 19a is wound, then high tensile fiber sheet 19b is wound, and then high tensile fiber sheet 19c is wound widely to cover sleeve 23, and then sleeve 23 is cut out with a cutter or the like (not shown). In this case, the joint between end portions 12, 12 can be more firmly bound.

[0029] In this way, the high tensile fiber sheet 19a is wound in single or multiple layers around the reinforcing plate 17 at the upper end and the upper part 23a of the sleeve 23 for the rectangular sleeve 23, and the high tensile fiber sheet 19b is wound in single or multiple layers around the reinforcing plate 18 at the lower end and the lower part 23b of the sleeve 23. Furthermore, the high tensile fiber sheet 19c is wound in single or multiple layers on both sides of one side and the other side of the sleeve 23 from the reinforcing plate 17 at the upper end to the reinforcing plate 18 at the lower end, while avoiding the sleeve 23. As a result, the upper part 23a and lower part 23b of the sleeve 23 are wound with the high tensile fiber sheets 19a, 19b, which provides even stronger reinforcement against cross-sectional defects at the connection parts.

[0030] The drilling of the insertion holes 16 for inserting the connecting steel rods 15 and the injection of adhesive into the gaps between the insertion holes 16 and the connecting steel rods 15 are the same as in the first embodiment, but the injection holes 20a and confirmation holes 20b are omitted in each figure (see Figure 1-3 (a)). EXAMPLES

[0031] Next, a method for joining beams in which sleeves are formed in wooden members according to the fourth embodiment shown in Fig. 4-1 and Fig. 4-2 will be described. In this fourth embodiment, the same parts as those in the first and third embodiments are given the same reference numerals, and details thereof will be omitted.

[0032] The method of joining beams in which a sleeve will be formed in this wooden component is to first form a convex portion 27 at one end 26a of the beam 11 and cut it, and form a concave portion 28 at the other end 26b, so that a rectangular sleeve 25 will be formed when the ends 26a, 26b of the beams 11 to be joined are butted together, as shown in Figures 4-2 (a) and (b). In other words, the length of the convex portion 27 in the convex direction is formed shorter than the length of the concave portion 28 in the concave direction, and the sleeve 25 is formed at the portion of the difference in length. Then, ends 26a, 26b of beam material 11 are butted against each other and connected to form rectangular sleeve 25. In other words, rectangular sleeve 25 is formed in the gap where convex portion 27 and concave portion 28 are fitted together.

[0033] In this way, the rectangular sleeve 25 is formed by the gap between the convex portion 27 and the concave portion 28, so that the ends 26a, 26b of the beam material 11 are not located at the upper portion 25a or the lower portion 25b of the sleeve 25 (see Figure 4-1). In addition, the boundary between the ends 26a, 26b of the beam material 11 is not positioned on a straight line, as shown in Figs. 4-1 and 4-3(b). Both have a different shape from the square sleeve 23 that is formed when the ends 12 of the beam material 11 in the third embodiment are butted together (see Figures 3-3 (b) and (d)). Therefore, when wrapped with a high-tensile fiber sheet 19, it is possible to provide even stronger reinforcement against cross-sectional defects at the connection parts.

[0034] Next, as shown in Fig. 4-2(c), a high tensile fiber sheet 19a is wound in single or multiple layers around the reinforcing plate 17 at the upper end and the upper part 25a of the sleeve 25. Then, a high tensile fiber sheet 19b is wound in single or multiple layers around the reinforcing plate 18 at the lower end and the lower part 25b of the sleeve 25 (see Fig. 4-2(b)). Furthermore, on both sides of the sleeve 25, one side (left side in FIG. 4-2(c)) and the other side (right side in FIG. 4-2(c)), a high tensile fiber sheet 19c is wound in a single or multiple layers from the reinforcing plate 17 at the upper end to the reinforcing plate 18 at the lower end. The wrapped high tensile fiber sheet 19 is adhered and fixed with an adhesive such as an epoxy resin adhesive. Further, the high tensile fiber sheet 19 is disposed so that the fiber direction of the high tensile fiber sheet is in the short side direction of the beam material 11 (the direction of the arrow S) as shown in FIG. 4-1. The winding of the high tensile fiber sheets may be performed in the following order: first, high tensile fiber sheet 19a is wound, then high tensile fiber sheet 19b is wound, and then high tensile fiber sheet 19c is wound widely to cover sleeve 25, and then sleeve 25 is cut out with a cutter or the like (not shown). In this case, the joint between end portions 12, 12 can be more firmly bound.

[0035] The drilling of the insertion holes 16 for inserting the connecting steel rods 15, the insertion of the connecting steel rods 15 into the insertion holes 16, the injection of adhesive into the gaps between the insertion holes 16 and the connecting steel rods 15, and the attachment and fastening of the reinforcing plates 17, 18 to the upper and lower ends of the beams 11 are the same as in the first embodiment. In each figure, the injection hole 20a and the confirmation hole 20b are omitted (see FIG. 1-3(A)).

[0036] Next, using test specimens prepared by the method of joining beam materials in which a sleeve is formed in the wooden member of the fourth embodiment, various values ​​for the connecting steel rod 15, high tensile fiber sheets 19, 19a, 19b, 19c, and high tensile fiberboards 17, 18 used in the tests described below are shown in the table.

[0037] Various values ​​for connecting steel bars, high tensile fiber sheets, and high tensile fiberboards TIFF2025066329000002.tif26154

[0038] Next, the results of a shear test carried out using a test specimen produced by the method for joining beams in which a sleeve is formed in the wooden member of the fourth embodiment are shown in the table. Specimen No. 1 is a specimen consisting of only a continuous beam without joints or sleeves, specimen No. 2 is a specimen in which a continuous beam without joints is provided with a circular sleeve, specimen No. 3 is a specimen made by the method for joining beams together to form a sleeve in a wooden component according to the fourth embodiment of the present invention, and wrapped with a single layer of high tensile fiber sheet, and specimen No. 4 is a specimen made by the method for joining beams together to form a sleeve in a wooden component according to the fourth embodiment of the present invention, and wrapped with a double layer of high tensile fiber sheet.

[0039] Shear test results (two-point monotonic load shear test on beams made of the same grade cedar laminated lumber) TIFF2025066329000003.tif67163

[0040] As shown by the above shear test results, specimens No. 3 and No. 4, which were reinforced with high tensile fiber sheets and high tensile fiber boards, had higher average shear stress at ultimate load and a smaller reduction in ultimate strength than specimen No. 2, which was a continuous beam without joints with a circular sleeve. In other words, the reinforcing effect of the high tensile fiber sheets and high tensile fiber boards was evident. Furthermore, compared to specimen No. 1, which is a continuous beam without joints or sleeves, specimen No. 4, which is a beam with ends (joints) formed with square sleeves and reinforced with high tensile fiber sheets and high tensile fiberboards, had the lowest rate of strength reduction at the ultimate state, and the standard shear strength of the cross-sectional defect caused by the sleeve was almost the same as the standard shear strength of the beam's base material (in this case, the same grade cedar laminated timber). In other words, it was found that despite the presence of the sleeve, it exhibited high strength and high rigidity performance.

[0041] The method of joining beams in which sleeves are formed in wooden members of the first to fourth embodiments configured as described above provides a method of joining beams that exhibits high strength and high rigidity performance even in the presence of a sleeve by reinforcing cross-sectional defects at the connection parts with a high-tensile fiber sheet. The present invention provides a structure that allows for larger openings in wooden beams than are indicated by guidelines. [Explanation of symbols]

[0042] 11 Beam material 12 End 13 Circular Sleeve 14 Semicircular sleeve groove 15 Connected steel rod 16 Insertion hole 17, 18 Reinforcement plate 19, 19a, 19b, 19c High tensile fiber sheet 20a injection hole 20b confirmation hole 20c Adhesive 21, 22 Reinforcement plate 23 Square sleeve 23a upper part 23b bottom 24 Concave sleeve groove 25 Square sleeve 25a upper part 25b Lower 26a One end 26b The other end 27 Convex part 28 Concave part

Claims

1. A method for joining beams in which a sleeve is formed in a wooden member, comprising: cutting a semicircular sleeve groove into each end of each beam member to be joined so that a circular sleeve is formed when the ends of the beam members are butted together; An insertion hole for inserting a connecting steel rod is drilled above and below the end of the beam material, The connecting steel rod is inserted into the insertion hole, and the ends of the beams are butted together to connect them to form the sleeve; Injecting adhesive into the gap between the insertion hole and the connecting steel bar; A reinforcing plate is attached or fastened to the upper end and the lower end of the butt-jointed beams across both of the beams; A high tensile fiber sheet is wound in a single layer or multiple layers around the reinforcing plate at the upper end and the reinforcing plate at the lower end, Cutting out the high tensile fiber sheet along the shape of the sleeve. A method for joining beams in which a sleeve is formed in wooden components, comprising:

2. The reinforcing plate is a high-tensile fiberboard or steel plate formed into a plate shape or bent into a U-shape.

2. A method for joining beam members in which a sleeve is formed in a wooden member according to claim 1.

3. A method for joining beams in which a sleeve is formed in a wooden member, comprising: Cutting each end of the beams to be joined so that a rectangular sleeve is formed when the ends of the beams are butted together; An insertion hole for inserting a connecting steel rod is drilled above and below the end of the beam material, The connecting steel rod is inserted into the insertion hole, and the ends of the beams are butted together to connect them to form the sleeve; Injecting adhesive into the gap between the insertion hole and the connecting steel bar; A reinforcing plate is attached or fastened to the upper end and the lower end of the butt-jointed beams across both of the beams; A high tensile fiber sheet is wound in a single layer or multiple layers across the reinforcing plate at the upper end and the upper part of the sleeve, and across the reinforcing plate at the lower end and the lower part of the sleeve, Furthermore, a high tensile fiber sheet is wound in one or more layers across the reinforcing plate at the upper end and the reinforcing plate at the lower end. A method for joining beams in which a sleeve is formed in wooden components, comprising:

4. cutting the end of the beam to form a concave sleeve groove; The rectangular sleeve is formed by butting the concave sleeve grooves together.

4. A method for joining beam members in which a sleeve is formed in wooden members according to claim 3.

5. The ends of the beam are cut to form a convex portion at one end and a concave portion at the other end; The rectangular sleeve is formed by a gap formed by fitting the convex portion and the concave portion together.

4. A method for joining beam members in which a sleeve is formed in wooden members according to claim 3.

Images