Method for reinforcing joint between wooden through column and beam

Abstract

To provide a method for reinforcing a joint between a wooden through column and a beam, in which a substantially rigid joint is formed while reinforcing a wooden member at the joint between the column and the beam.SOLUTION: A through hole 15 for inserting a steel rod 14 into a joint 13 of a through column 11 is formed, a high-tensile strength fiber sheet 16 is wound or affixed in a single or multiple layers on an outer peripheral surface of the through column to cover the through hole, the high-tensile strength fiber sheet is impregnated with resin to cure, and a portion of the high-tensile strength fiber sheet over the through hole is cut off to form an opening 17. The steel rod with high nuts 18 screwed on both ends is inserted into the opening, the inside of the through hole is filled with adhesive, and after the filled adhesive is hardened, a fixing and reinforcing plate with a hole is brought into contact with the high nut, and a high strength bolt is screwed onto the high nut to tighten it.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a method for reinforcing a joint between a wooden through-column and a beam in a framework of a wooden ramen structure.

Background Art

[0002] Conventionally, for the joint between the column and the beam of a wooden ramen structure, for example, there are a steel plate insertion joint method in which a slit is provided in the wood, a steel plate is sandwiched, and fixed with a drift pin, and an adhesive unbond anchor joint method or an adhesive bond anchor joint method in which holes are cut in the mating surfaces of the wood and steel bars are inserted into the holes and restrained with an adhesive. However, in the joint between the column and the beam where the most bending stress is applied, due to stress concentration and cross-sectional loss, the connection part yields earlier than the column or the beam. Therefore, as a joint method between the column and the beam in the framework of a wooden ramen structure, a structure of a connection part for connecting the column and the beam via a steel joint member has been proposed (see Patent Document 1).

[0003] In this way, by connecting the column and the beam via a steel joint member, it becomes possible to form a joint part with high strength, high rigidity, and high toughness.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] When connecting the column and the beam of this conventional example via a steel joint member, the steel joint member has problems such as a long production period and high production costs. In addition, the steel joint member has problems such as increased weight, increased building load resulting in increased structural burden, or increased burden on heavy work during construction.

[0006] Therefore, there are problems that the production days and production costs are high when using the steel joint member in the conventional example, and the building load increases due to its weight, resulting in increased structural burden and burden on heavy work during construction. These are the problems that need to be solved.

Means for Solving the Problems

[0007] The gist of the present invention for solving the problems of the conventional example is a method for reinforcing the joint between a wooden through-column and a beam of a wooden ramen structure. A through-hole for inserting a steel bar is formed at the joint of the through-column, and a high-tensile fiber sheet is wound or adhered in one or multiple layers in a state of covering the through-hole on the outer peripheral surface of the through-column. The high-tensile fiber sheet is impregnated with resin and cured. The portion of the high-tensile fiber sheet covering the through-hole is cut to form an opening, and the steel bar with high nuts screwed at both ends is inserted into the opening. An adhesive is filled into the through-hole. After the filled adhesive is cured, a fixing reinforcement plate having a hole portion is abutted against the high nut, and a high-strength bolt is screwed onto the high nut and tightened.

[0008] The gist of the present invention for solving the problems of the conventional example is a method for reinforcing the joint between a wooden through-column and a beam of a wooden ramen structure. A through-hole for inserting a steel bar is formed at the joint of the through-column, and a high-tensile fiber sheet is wound or adhered in one or multiple layers in a state of covering the through-hole on the outer peripheral surface of the through-column. The high-tensile fiber sheet is impregnated with resin and cured. The portion of the high-tensile fiber sheet covering the through-hole is cut to form an opening, and the steel bar with high nuts screwed at both ends is inserted into the opening. A fixing reinforcement plate having a hole portion is abutted against the high nut, a high-strength bolt is screwed onto the high nut and tightened, and an adhesive is filled into the through-hole.

[0009] The gist of the present invention for solving the problems of the conventional example is a method for reinforcing the joint between the wooden through-column and the beam of a wooden ramen structure, comprising forming a through-hole for inserting a steel bar at the joint of the through-column, winding or attaching a high-tensile fiber sheet in one or multiple layers in a state of covering the through-hole on the outer peripheral surface of the through-column, impregnating the high-tensile fiber sheet with resin and curing it, cutting the portion of the high-tensile fiber sheet covering the through-hole to form an opening, inserting the steel bar into the opening with both ends protruding, abutting a fixing reinforcement plate against the steel bar, protruding the end of the steel bar from the hole of the fixing reinforcement plate, screwing and tightening a nut onto the end of the steel bar, and filling the inside of the through-hole with an adhesive.

[0010] Further, the fixing reinforcement plate is a plate-shaped steel plate, or a plate-shaped steel plate provided with a joining metal fitting for joining to the end of the beam. It includes the above.

Effect of the Invention

[0011] According to the method for reinforcing the joint between the wooden through-column and the beam according to the present invention, since the fixing reinforcement plate is tightened to the joint of the column with the high-tensile fiber sheet attached, a substantial rigid joint can be formed at the joint between the column and the beam while reinforcing the wooden member. That is, since a substantial rigid joint is formed at the joint between the column and the beam, it is not necessary to use the steel joint member of the conventional example. Also, compared with the case of using it, the building load is reduced, the structural burden is alleviated, and the heavy work during construction is reduced. In addition, the labor and cost for creating the steel joint member can be reduced. Furthermore, by increasing the utilization of wood, it can contribute to the global environment. According to the mechanism of this method for reinforcing the joint between the column and the beam, the stress transmitted to the member during an earthquake or typhoon is transmitted from the fixing reinforcement plate to the steel bar and further to the wooden member. At that time, even if a tear occurs in the wooden member, the spread of the tear is suppressed by the wound high-tensile fiber sheet, and furthermore, the destruction of the high-tensile fiber sheet itself can be delayed by the pressure bonding and fixing of the fixing reinforcement plate. Therefore, it has various excellent effects such as preventing the breakage of brittle wooden members, sudden reduction in load-bearing capacity, and collapse of the structure.

[0012] When filling the adhesive inside the through-hole after fastening the fixing reinforcement plate to the joint of the column with the high-tensile fiber sheet pasted on it, an improvement in load-bearing capacity can be expected compared to the case of filling the adhesive before fastening the joint. Also, when screwing and fastening a steel bar with a nut, it has an excellent effect of eliminating the need to prevent the bolt from loosening.

[0013] The fixing reinforcement plate is a plate-shaped steel plate or a plate-shaped steel plate provided with a joining metal fitting for joining to the end of the beam. By this, the plate-shaped steel plate can abut on a wide range of the joint of the column with the high-tensile fiber sheet pasted on it and can be fastened. Also, the joining metal fitting can be changed to various forms such as a bracket form (refer to the fourth embodiment, FIG. 5) according to the member to be joined, so it has an excellent effect of increasing the variation in the shape of the joining metal fitting.

Brief Description of the Drawings

[0014]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

Figure 15

Figure 16

Figure 17

Figure 18

Mode for Carrying Out the Invention

[0015] The method for reinforcing the joint portion between the wooden through column and the beam of the present invention is to paste a high-tensile fiber sheet on the joint portion between the column and the beam for reinforcement, and further press-fix a fixing reinforcement plate to the joint portion of the column where the high-tensile fiber sheet is pasted. Therefore, at the joint portion between the column and the beam, a substantially rigid joint can be formed while obtaining a stronger reinforcing effect.

Example

[0016] A first embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the present invention is a method for reinforcing a joint portion 13 between a wooden through column 11 and a beam 12 of a wooden ramen structure. First, a through hole 15 for inserting a steel bar 14 is formed in the joint portion 13.

[0017] Next, the high-tensile fiber sheet 16 is wound or adhered in one or multiple layers in a state of covering the through-hole 15 on the outer peripheral surface of the through-column 11 (see FIG. 1), and the high-tensile fiber sheet 16 is impregnated with resin and cured. The high-tensile fiber sheet 16 is a carbon fiber sheet, an aramid fiber sheet, a glass fiber sheet, etc., and includes plate-shaped ones formed by previously impregnating these sheets with resin. In FIG. 1, the high-tensile fiber sheet 16 is shown in light ink.

[0018] Specifically, the resin impregnated into the high-tensile fiber sheet 16 is preferably an epoxy resin, but is not necessarily limited to this, and various resins including adhesives can be used. The method of impregnating the high-tensile fiber sheet 16 with resin is performed by uniformly applying it with a brush or a roller at the work site, but is not necessarily limited to this method, and various impregnation methods for attaching resin can be performed. Regarding impregnating the high-tensile fiber sheet 16 with resin and then curing it, actually, after uniformly applying epoxy resin with a brush or a roller to the part to be reinforced of the wood member, the high-tensile fiber sheet is wound in one layer, and epoxy resin is uniformly applied from above the high-tensile fiber sheet with a brush or a roller, and left for a predetermined curing time. Also, when winding in two layers, after the first layer is cured, epoxy resin is applied, then the second layer of high-tensile fiber sheet is wound and epoxy resin is applied, and left for a predetermined curing time again. In winter, the room temperature may be increased to accelerate curing.

[0019] Next, the portion of the high-tensile fiber sheet 16 covering the through-hole 15 is cut with a cutting tool such as a cutter to form an opening 17 (see FIG. 1).

[0020] Then, a steel bar 14 with high nuts 18 screwed onto both ends is inserted into the opening 17 (see Fig. 1). Fig. 2 is a longitudinal sectional view showing an enlarged view of the vicinity of the opening 17 with the steel bar 14 having the high nuts 18 screwed thereon. Reference numeral 15 indicates a through hole, reference numeral 19 indicates an adhesive, reference numeral 18 indicates a high nut, reference numeral 23 indicates a high-strength bolt, reference numeral 21 indicates a fixing reinforcement plate, and reference numeral 37 indicates a washer.

[0021] Next, the inside of the through hole 15 is filled with the adhesive 19 (see Fig. 2). The filling of the adhesive 19 is performed by forming a filling hole (not shown) at an appropriate position of the through pillar 11 and press-fitting the adhesive 19 from the filling hole. Note that this filling operation of the adhesive 19 is mainly assumed to be performed at a factory.

[0022] After the filled adhesive 19 has hardened, as shown in Figs. 1 and 2, a fixing reinforcement plate 21 having a hole 20 is abutted against the high nut 18. The positions of the high nut 18 and the hole 20 are aligned to correspond to each other.

[0023] The fixing reinforcement plate 21 is a plate-shaped steel plate as shown in Fig. 1. Also, the fixing reinforcement plate 21 may be a plate-shaped steel plate provided with a joining metal 22 for joining to the end portion 12a of the beam 12 as shown by the broken line in Fig. 1. The joining metal 22 is shown omitted by a broken line in Fig. 1. The joining metal 22 will be described in detail in the item of the fourth embodiment.

[0024] Then, a high-strength bolt 23 is screwed onto the high nut 18 and tightened (see Fig. 2). In this way, by screwing the high-strength bolt 23 onto the high nut 18, the fixing reinforcement plate 21 is pressure-fixed and tightened to the joint portion 13 of the pillar 11 to which the high-tensile fiber sheet 16 is attached, and a substantial rigid joint can be formed while reinforcing the wooden member at the joint portion 13 between the pillar 11 and the beam 12. Note that reference numeral 37 in Fig. 2 indicates a washer, which is interposed between the fixing reinforcement plate 21 and the high-strength bolt 23, but the washer 37 can be omitted depending on the case.

[0025] According to the method for reinforcing the joint between the wooden through-column and the beam configured as described above, since a substantially rigid joint is formed at the joint 13 between the column 11 and the beam 12, it is not necessary to use the steel joint member of the conventional example. Also, compared with the case of using it, the building load is reduced, the structural burden is alleviated, and the heavy work during construction is reduced. Further, the labor and cost for manufacturing the steel joint member can be reduced. Furthermore, by increasing the use of wood, it is possible to contribute to the global environment. According to the mechanism of the method for reinforcing the joint 13 between this column 11 and the beam 12, the stress transmitted to the members during an earthquake or a typhoon is transmitted from the fixing reinforcement plate 21 to the steel bar 14 and further transmitted to the wooden member. At that time, even if a split occurs in the wooden member, the spread of the split is suppressed by the wound high-tensile fiber sheet 16, and furthermore, the destruction of the high-tensile fiber sheet 16 itself can be delayed by the pressure bonding and fixing of the fixing reinforcement plate 21. Therefore, it is possible to prevent the brittle failure of the wooden member, the sudden decrease in bearing capacity, and the collapse of the structure.

Example

[0026] Next, a method for reinforcing the joint between the wooden through-column and the beam according to the second embodiment of the present invention will be described. For this second embodiment, the same reference numerals are given to the same parts as those in the first embodiment described above, and the details thereof are omitted.

[0027] The portion of the high-tensile fiber sheet 16 covering the through-hole 15 is cut with a cutting tool such as a cutter to form an opening 17, and a steel bar 14 with high nuts 18 screwed onto both ends is inserted into the opening 17 (see FIG. 1). Up to this step, it is the same as the first embodiment. Also, as in the case of the first embodiment, FIG. 2 is a longitudinal sectional view showing an enlarged view of the vicinity of the opening 17 with the steel bar 14 having the high nuts 18 screwed thereon.

[0028] Next, as shown in FIG. 2, a fixing reinforcement plate 21 having a hole portion 20 is abutted against the high nut 18. The positions of the high nut 18 and the hole portion 20 are aligned so as to correspond to each other. The fixing reinforcement plate 21 is a plate-shaped steel plate as shown in FIG. 1.

[0029] Then, a high-strength bolt 23 is screwed onto and fastened to the high nut 18 (see Fig. 2). After that, the inside of the through-hole 15 is filled with an adhesive 19 (see Fig. 2). The filling of the adhesive 19 is performed by forming a filling hole (not shown) at an appropriate position of the through-post 11 and press-fitting the adhesive 19 from the filling hole. In this way, when the fixing reinforcement plate 21 is fastened to the joint portion 13 of the post 11 to which the high-tensile fiber sheet 16 is attached and then the inside of the through-hole 15 is filled with the adhesive 19, an improvement in the load-bearing capacity can be expected. Note that the filling operation of the adhesive 19 mainly assumes the work at the work site.

Example

[0030] Next, a method for reinforcing the joint between the wooden through-post and the beam according to the third embodiment shown in Figs. 3 and 4 will be described. For this third embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals and their details are omitted.

[0031] The portion of the high-tensile fiber sheet 16 covering the through-hole 15 is cut with a cutting tool such as a cutter to form an opening 17 (see Fig. 3). Up to this step, it is the same as the first embodiment. In Fig. 3, the high-tensile fiber sheet 16 is shown in light ink.

[0032] Next, a steel bar 24 is inserted into the opening 17 with both ends 24a protruding (see Fig. 4). Fig. 4 is a longitudinal sectional view showing an enlarged view of the vicinity of the opening 17 with the steel bar 24 inserted with the ends 24a protruding. Reference numeral 15 indicates the through-hole, reference numeral 19 indicates the adhesive, reference numeral 25 indicates the nut, reference numeral 21 indicates the fixing reinforcement plate, and reference numeral 37 indicates the washer.

[0033] Then, the fixing reinforcement plate 21 is abutted against the steel bar 24, and the end 24a of the steel bar 24 is protruded from the hole portion 20 of the fixing reinforcement plate 21 (see Fig. 4). A nut 25 is screwed onto and fastened to the end 24a of the steel bar 24 (see Fig. 4), and the inside of the through-hole 15 is filled with the adhesive 19 (see Fig. 4). Note that reference numeral 37 in Fig. 4 indicates the washer, which is interposed between the fixing reinforcement plate 21 and the nut 25.

[0034] By screwing the nut 25 onto the steel bar 24 in this way, the fixing reinforcement plate 21 is pressure-fixed and tightened to the joint portion 13 of the column 11 to which the high-tensile fiber sheet 16 is adhered, and a substantial rigid joint can be formed while reinforcing the wooden member at the joint portion 13 between the column 11 and the beam 12. Further, after the fixing reinforcement plate 21 is fastened to the joint portion 13 of the column 11 to which the high-tensile fiber sheet 16 is adhered, the adhesive 19 is filled into the through-hole 15, so that an improvement in load-bearing capacity can be expected. Also, since the steel bar 24 is screwed and tightened with the nut 25 and then the adhesive 19 is filled, it is not necessary to prevent the bolt from loosening.

Example

[0035] Next, a method for reinforcing the joint portion between the wooden continuous column and the beam of the fourth embodiment shown in FIGS. 5 and 6 will be described. For this fourth embodiment, the same reference numerals are given to the same parts as those in the first embodiment described above, and the details thereof are omitted.

[0036] As shown in FIGS. 5 and 6, a through-hole 15b is formed in a direction orthogonal to one through-hole 15a of the continuous column 11, and the high-tensile fiber sheet 16 is wound in a state covering the through-holes 15a and 15b. In FIG. 5, the high-tensile fiber sheet 16 is shown in light ink.

[0037] Then, the high-tensile fiber sheet 16 is impregnated with resin and then cured. The portion of the high-tensile fiber sheet 16 covering the through-hole 15 is cut to form an opening 17. A steel bar 14 having high nuts 18 screwed at both ends is inserted into the opening 17, the adhesive 19 is filled into the through-hole 15, and after the filled adhesive 19 is cured, a fixing reinforcement plate 21 having a hole portion 20 is abutted against the high nut 18, and a high-strength bolt 23 is screwed onto the high nut 18 and tightened.

[0038] The fixing reinforcement plate 21 is provided with a joint metal 22 at a portion facing the end portion 12a side of the beam 12. As shown in FIGS. 5 and 6, the bonding metal 22 includes a column-side bracket 26 provided on the fixing reinforcement plate (column-side flange) 21a and a beam-side bracket 28 provided on the beam-side flange 27. The column-side bracket 26 and the beam-side bracket 28 are joined by a splice plate 38 and high-strength bolts 39, which is a so-called bracket method. Reference numeral 31 in FIG. 5 indicates a sleeve.

[0039] The beam-side flange 27 is in contact with the end portion 12a of the beam 12. A steel bar 34 or a steel bar 35 with a high nut 33 screwed onto its end is inserted into the insertion hole 32a or the insertion hole 32b provided in the beam 12 (see FIGS. 5 to 8).

[0040] Next, FIGS. 7 and 8 will be described. FIG. 7 is a longitudinal sectional view showing an enlarged view of the insertion hole 32a with the steel bar 34 having the high nut 18 screwed thereon inserted. A high-strength bolt 23 is screwed and tightened to the high nut 18 via the beam-side flange 27 and a washer 37. The insertion hole 32a is filled with an adhesive 19, and a bonded portion 36a where the adhesive 19 and the steel bar 34 are adhered and an unbonded portion 36b where the adhesive 19 and the steel bar 34 are not adhered are formed (the applicant refers to it as GIUA joint). FIG. 8 is a longitudinal sectional view showing an enlarged view of the insertion hole 32b with the steel bar 35 having the high nut 18 screwed thereon inserted. A high-strength bolt 23 is screwed and tightened to the high nut 18 via the beam-side flange 27 and a washer 37. The insertion hole 32b is filled with the adhesive 19, but an unbonded portion 36b where the adhesive 19 and the steel bar 34 are not adhered is formed over the entire length (the applicant refers to it as GIFU joint). In particular, it is installed at the joint end of the beam or the center of the column opening and mainly acts as a shear resistance element.

Example

[0041] Next, a method for reinforcing the joint between the wooden through-column and the beam of the fifth embodiment shown in FIG. 9 will be described. For this fifth embodiment, the same parts as those in the first and fourth embodiments are denoted by the same reference numerals, and the details thereof are omitted.

[0042] FIG. 9 is a front view for explaining a method for reinforcing a joint between a wooden through-column and a beam according to the fifth embodiment of the present invention. In the joint between the wooden through-column and the beam having a two-way ramen structure, the reinforcement method in the case of the fixing reinforcement plate 21a provided with the bracket-type connecting metal fitting 22 will be described. First, the column-side bracket 26 is attached to the fixing reinforcement plate (column-side flange) 21a on the column side by the procedure described in the first embodiment. The shape of the column-side bracket 26 may be of the beam width shown in FIG. 6 or the case with a haunch shown in FIG. 11, depending on the shapes of the column 11 and the beam 12. Next, the column-side bracket 26 and the beam-side bracket 28 are fastened with a splice plate 38 and high-strength bolts 39.

[0043] By this joining method, the bending and shear forces transmitted from the beam during an earthquake or a typhoon are transmitted to the column 11 through the joining members such as the bracket and the steel bar 24 in the beam and then transmitted to the foundation. In addition, the high-tensile fiber sheet 16 is wound around the column 11 to exert a restraining effect against the shear force applied to the joint, and even if a tear occurs in the wood part, brittle fracture and a rapid decrease in bearing capacity can be suppressed. Furthermore, due to the restraining effect of the fixing reinforcement plate 21 on the column 11 side, the high-tensile fiber sheet 16 is reinforced.

[0044] Next, various patterns of the structure of the joint 13 between the wooden through-column 11 and the beam 12 of the present invention will be described. FIGS. 12 to 18 are plan views of the through-column 11 and the beam 12, and the through holes 15, steel bars 14, high nuts 18, etc. inside the beam 12 are not shown.

[0045] Figures 12 and 13 show the case where the beam 12 is joined to one surface of the continuous column 11, including the case where the fixing reinforcement plate 21 is provided on the opposite surface of the continuous column 11 to which the beam 12 is joined (see Figure 12), and the case where the fixing reinforcement plate 21 is provided on all surfaces of the continuous column 11 to which the beam 12 is not joined (see Figure 13).

[0046] Figures 14 and 16 show the case where the beam 12 is joined to two surfaces of the continuous column 11, including the case where the fixing reinforcement plate 21 is not provided except for the continuous column 11 to which the beam 12 is joined (see Figure 14), and the case where the fixing reinforcement plate 21 is provided on all surfaces of the continuous column 11 to which the beam 12 is not joined (see Figures 15 and 16).

[0047] Figure 17 shows the case where the beam 12 is joined to three surfaces of the continuous column 11, and the case where the fixing reinforcement plate 21 is provided on the continuous column 11 to which the beam 12 is not joined. Figure 18 shows the case where the beam 12 is joined to all four surfaces of the continuous column 11.

Explanation of Symbols

[0048] 11 Continuous column 12 Beam 12a End 13 Joint 14 Steel bar 15, 15a, 15b Through hole 16 High-tensile fiber sheet 17 Opening 18 High nut 19 Adhesive 20 Hole part 21 Fixing reinforcement plate 21a Fixing reinforcement plate (column side flange) 22 Joining metal 23 High-strength bolt 24 Steel bar 24a End 25 Nut 26 Column side bracket 27 Beam side flange 28 Beam side bracket 29 Steel plate 30 Bolt 31 Sleeve 32a, 32b Insertion hole 33 High nut 34, 35 Steel bars 36a Bonding part 36b Unbonding part 37 Washer 38 Splice plate 39 High-strength bolt

Claims

1. A method for reinforcing the joint between a wooden through-column and a beam in a wooden ramen structure, comprising: forming a through-hole for inserting a steel bar at the joint of the through-column; wrapping or attaching a high-strength fiber sheet in one or multiple layers in a state covering the through-hole on the outer peripheral surface of the through-column, impregnating the high-strength fiber sheet with resin and curing it; cutting a portion of the high-strength fiber sheet covering the through-hole to form an opening; inserting the steel bar with high nuts screwed at both ends into the opening; filling the inside of the through-hole with an adhesive; after the filled adhesive is cured, abutting a fixing and reinforcing plate having holes against the high nuts; screwing and tightening high-strength bolts onto the high nuts characterizing the method for reinforcing the joint between the wooden through-column and the beam.

2. A method for reinforcing the joint between a wooden through-column and a beam in a wooden ramen structure, comprising: forming a through-hole for inserting a steel bar at the joint of the through-column; wrapping or attaching a high-strength fiber sheet in one or multiple layers in a state covering the through-hole on the outer peripheral surface of the through-column, impregnating the high-strength fiber sheet with resin and curing it; cutting a portion of the high-strength fiber sheet covering the through-hole to form an opening; inserting the steel bar with high nuts screwed at both ends into the opening; abutting a fixing and reinforcing plate having holes against the high nuts; screwing and tightening high-strength bolts onto the high nuts; filling the inside of the through-hole with an adhesive characterizing the method for reinforcing the joint between the wooden through-column and the beam.

3. A method for reinforcing the joint between a wooden through-column and a beam in a wooden ramen structure, comprising: forming a through-hole for inserting a steel bar at the joint of the through-column; wrapping or attaching a high-strength fiber sheet in one or multiple layers in a state covering the through-hole on the outer peripheral surface of the through-column, impregnating the high-strength fiber sheet with resin and curing it; cutting a portion of the high-strength fiber sheet covering the through-hole to form an opening; inserting the steel bar with both ends protruding into the opening; abutting a fixing and reinforcing plate against the steel bar and protruding the end of the steel bar from the hole of the fixing and reinforcing plate; screwing and tightening a nut onto the end of the steel bar; filling the inside of the through-hole with an adhesive characterizing the method for reinforcing the joint between the wooden through-column and the beam.

4. The fixing and reinforcing plate is a plate-shaped steel plate or a plate-shaped steel plate provided with a joining metal object for joining with the end of the beam. The method for reinforcing the joint between the wooden through-column and the beam according to any one of claims 1 to 3, characterized in that...

Images