Bearing wall structure of wooden house, bearing wall construction method, and bearing wall panel

Abstract

To provide a bearing wall structure of a wooden house, a bearing wall construction method, and a bearing wall panel, inexpensively and easily manufacturable, while having high strength as a bearing wall.SOLUTION: In a bearing wall 2 of a wooden house 1 provided so as to close a rectangular opening 9 surrounded by mutually parallel first and second framework members (columns) 5, 5 and mutually parallel third and fourth framework members (foundation and horizontal material) 4, 6 orthogonal to the first and second frame members (columns) 4, 6, the bearing wall 2 comprises a honeycomb core 11 and a bearing surface material 12 superposed on the honeycomb core 11. In the honeycomb core 11, a plurality of honeycomb units 11a formed by combining six trapezoidal blocks 13 in a regular hexagonal shape are arranged inside the rectangular opening 9 surrounded by the first and second framework members 5, 5 and the third and fourth framework members 4, 6 in a honeycomb shape as seen from a thickness direction of the bearing wall 2. Outer peripheral edges of the bearing surface material 12 are fixed to the first and second framework members 5, 5 and the third and fourth framework members 4,6.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a wooden house, and more particularly to a bearing wall structure, a bearing wall construction method, and a bearing wall panel for a wooden house constructed using a wooden framework construction method. [Background technology]

[0002] In conventional wooden houses constructed using a wooden framework method using foundations, pillars, and horizontal members such as beams and girders, a bearing surface panel is attached to close an opening surrounded by, for example, two pillars, the foundation, and horizontal members from the outside. The bearing surface panel is fixed by nailing it to the two pillars, the foundation, and the beams at regular intervals along its outer periphery.

[0003] However, in wooden houses constructed using wooden frame construction methods and using load-bearing panels, strong forces from repeated earthquakes and typhoons act on the structure over many years of residence, causing the nails securing the load-bearing panels to loosen or rust to form due to internal condensation, which reduces the functionality of the load-bearing panels.This can lead to deformation of the frame structure, cracks in the exterior materials, and problems such as rainwater entering the interior.

[0004] Patent Document 1 describes a bearing wall in which notches of a depth approximately equal to the thickness of the exterior structural plate material are formed around an opening formed by pillars, foundations, and cross members, and the periphery of the exterior structural plate material is fitted into these notches and fixed with fixing means such as nails. Patent Document 2 describes a bearing ceiling wall and a bearing floor wall with a structure similar to that of Patent Document 1. Patent Document 3 describes a wall structure in which a recess of a depth equivalent to the thickness of the bearing face material is formed in the structural material to which the bearing face material is fixed, so that the exterior surface of the bearing face material is on the same plane as the exterior surface of the structural material.

[0005] However, in the structures of Patent Documents 1-3, the overlap between the bearing wall and the notch or recess into which it fits is insufficient, and the distance from the edge to the nailing point is insufficient, making nailing difficult and not improving strength. Also, there is still the problem of the nails securing the bearing surface material loosening when the frame is twisted.

[0006] Patent Document 4 describes an architectural panel having a honeycomb core in which a metal honeycomb core is sandwiched between metal front and back panels. Patent Document 5 describes a honeycomb panel in which a reinforcing rib is provided on at least one surface of a honeycomb panel in which an aluminum core material is sandwiched between surface panels made of a pair of opposing metal plates. Patent Document 6 describes a building panel in which a straight member with a U-shaped cross section consisting of one web and two flanges is cut at five places on the flanges and the web is bent to form a regular hexagonal load-bearing unit, and this load-bearing unit is arranged to form a honeycomb structure on a frame member consisting of horizontal and vertical members.

[0007] However, the structures of Patent Documents 4 to 6 have problems in that the honeycomb core is made of metal, which requires bending and joining processes, making manufacturing difficult, and also increasing manufacturing time and cost. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] Japanese Patent Application Publication No. 9-195420 [Patent Document 2] Japanese Patent Application Publication No. 10-131369 [Patent Document 3] JP 2012-26084 A [Patent Document 4] Japanese Patent Application Publication No. 5-311790 [Patent Document 5] Japanese Patent Application Laid-Open No. 2007-177528 [Patent Document 6] Patent No. 6784466 specification Summary of the Invention [Problem to be solved by the invention]

[0009] The present invention has been made in consideration of the above-mentioned conventional problems, and aims to provide a shear wall structure for a wooden house, a shear wall construction method, and a shear wall panel that are not only strong as a shear wall but also inexpensive and easy to manufacture. [Means for solving the problem]

[0010] The means for solving the above problems are as follows. (1) In a shear wall of a wooden house that is installed to close a rectangular opening surrounded by first and second frame members that are parallel to each other and third and fourth frame members that are perpendicular to the first and second frame members, The bearing wall comprises a honeycomb core and a bearing surface material superimposed on the honeycomb core, The honeycomb core is made up of a plurality of honeycomb units, each of which is formed by combining six trapezoidal blocks into a regular hexagon, and is arranged in a honeycomb shape inside a rectangular opening surrounded by the first and second framework members and the third and fourth framework members, when viewed from the thickness direction of the shear wall; The outer peripheral edges of the bearing face materials are fixed to the first and second framework members and the third and fourth framework members. (2) In the above-mentioned means 1, The trapezoidal blocks are cut from waste wood used as framework members. (3) In the above means 1 or 2, The thickness of the honeycomb unit in the thickness direction of the bearing wall is equal to or less than the thickness of the first and second framework members and the third and fourth framework members in the thickness direction of the bearing wall. (4) In any one of the above means 1 to 3, The outer peripheral edges of the bearing face materials are nailed to the first and second framework members and the third and fourth framework members. (5) In any one of the above means 1 to 4, A bearing wall made of the honeycomb core and the bearing surface material is attached to the opening in the side surface including the pillars at the four corners of the wooden house, The honeycomb core is not present in the openings other than the openings on the side of the wooden house that include the pillars at the four corners, and only the load-bearing surface materials are attached. (6) In any one of the above means 1 to 4, A bearing wall made of the honeycomb core and the bearing surface material is attached to the opening in the floor or ceiling surface adjacent to the pillars at the four corners of the wooden house, The honeycomb core is not present in any openings other than those in the floor or ceiling surfaces adjacent to the pillars at the four corners of the wooden house, and only the load-bearing surface materials are attached. (7) A construction method for a bearing wall of a wooden house that is installed to close a rectangular opening surrounded by first and second frame members that are parallel to each other and third and fourth frame members that are perpendicular to the first and second frame members, a honeycomb core mounting step of arranging a plurality of honeycomb units, each of which is formed by combining six trapezoidal blocks into a regular hexagon, in a honeycomb shape as viewed from the thickness direction of the bearing wall inside a rectangular opening surrounded by the first and second framework members and the third and fourth framework members; and a load-bearing surface material mounting step of overlapping a load-bearing surface material on the honeycomb core and fixing the load-bearing surface material to the first and second frame members and the third and fourth frame members by nailing. (8) A shear wall panel for a wooden house that is installed to close a rectangular opening surrounded by first and second frame members that are parallel to each other and third and fourth frame members that are parallel to each other and perpendicular to the first and second frame members, The bearing wall panel comprises a rectangular frame and a honeycomb core disposed inside the frame, The frame is composed of first and second frame members that are parallel to each other, and third and fourth frame members that are perpendicular to the first and second frame members and are parallel to each other, The honeycomb core is made up of multiple honeycomb units, each consisting of six trapezoidal blocks combined into a regular hexagon, arranged in a honeycomb shape inside a rectangular opening surrounded by the first and second frame members and the third and fourth frame members, when viewed from the thickness direction of the load-bearing wall panel. [Effects of the Invention]

[0011] According to the present invention, the honeycomb core is made up of multiple honeycomb units, each of which is made up of six trapezoidal blocks combined into a regular hexagon. This allows the trapezoidal blocks to be made using waste frame members, eliminating the need to dump or incinerate the waste materials, which is environmentally friendly and allows for the effective use of waste materials, contributing to the achievement of the SDGs. In addition, because the honeycomb core is located inside the rectangular opening surrounded by the first and second frame members and the third and fourth frame members, it has high strength against external forces, especially torsion. Also, because the honeycomb core and the load-bearing face materials overlap each other, it has high strength against displacement in the direction perpendicular to the surface. In this way, the present invention also has the effect of improving the strength of the shear wall by providing a synergistic effect between the honeycomb core and the shear face material, thereby providing strong resistance to external forces such as earthquakes and typhoons. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a perspective view of a wooden house to which a bearing wall according to an embodiment of the present invention is applied. [Figure 2] FIG. 2 is a front view of a bearing wall according to an embodiment of the present invention as viewed from the outside. [Figure 3] 5A to 5C are perspective views showing a manufacturing process of the honeycomb unit. [Figure 4] FIG. 4 is a front view showing an assembled state of the honeycomb unit. [Figure 5] FIG. 1(a) is a front view of a base provided with grooves into which the corners of a honeycomb unit fit, and FIG. 1(b) is a front view of a honeycomb unit provided with chamfered corners. [Figure 6] 1A is a horizontal cross-sectional view of a bearing wall according to an embodiment of the present invention, and FIG. 1B is an enlarged cross-sectional view of part A thereof. [Figure 7] 1 is a vertical cross-sectional view of a bearing wall according to an embodiment of the present invention. [Figure 8] FIG. 10 is a front view of a load-bearing wall according to a first modified example, as viewed from the outside. [Figure 9] FIG. 10 is a front view of a second modified load-bearing wall as seen from the outside. [Figure 10] Front view of a load-bearing wall panel. [Figure 11]1A is a partial plan view of the first floor of a wooden house to which a bearing wall according to an embodiment of the present invention is applied, and FIG. 1B is a cross-sectional view taken along line BB thereof. [Figure 12] 1A is a partial plan view of the second floor of a wooden house to which a bearing wall according to an embodiment of the present invention is applied, and FIG. 1B is a cross-sectional view taken along line CC thereof. [Figure 13] 10A is a perspective view showing a modified example of a honeycomb unit, and FIG. 10B is a cross-sectional view showing a state of bonding with a pillar. DETAILED DESCRIPTION OF THE INVENTION

[0013] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

[0014] Fig. 1 shows a wooden house 1 to which a bearing wall 2 according to an embodiment of the present invention is applied. The wooden house 1 is constructed on a foundation 3 using a wooden framework construction method with horizontal members 6 such as bases 4, pillars 5, beams 6a, and girders 6b (hereinafter referred to as "frame members"). Between two pillars 5, ties 7 and studs 8 are installed as necessary. The frame members also include window frames and door frames.

[0015] The opening 9, surrounded by two columns 5, 5 (first and second frame members), a foundation 4, and cross members 6 (third and fourth frame members), is closed by a double bearing wall 2 consisting of a honeycomb core 11 and a bearing face material 12, or a conventional single bearing wall 10. Double bearing walls 2 are installed in the openings 9 that include the columns 5 at the four corners of the first and second floors, while single bearing walls 10 are installed in the other openings 9. Exterior materials such as siding are installed on the outdoor side of the bearing walls 2, 10, with a waterproof sheet (not shown) sandwiched between them, and interior materials are installed on the indoor side, with a heat insulating material (not shown) sandwiched between them.

[0016] As shown in FIG. 2, the honeycomb core 11 constituting the inner wall of the double bearing wall 2 has multiple honeycomb units 11a arranged in a honeycomb pattern inside a rectangular opening 9 surrounded by two columns 5, 5, a base 4, and a cross member 6, as viewed in the thickness direction of the bearing wall 2. That is, two honeycomb units 11a and one honeycomb unit 11a are alternately arranged upward on the base 4 between the two columns 5, 5, up to near the cross member 6. The honeycomb units 11a are arranged with one corner facing downward. The lower corners of two horizontally adjacent honeycomb units 11a in the first row are in contact with the base 4, the opposing vertical side surfaces are in contact with each other, and the opposite vertical side surfaces are in contact with the columns 5, 5. The lower diagonal side surface of the honeycomb unit 11a in the second row is in contact with the upper diagonal side surface of two honeycomb units 11a in the first row. The lower oblique side surfaces of the two honeycomb units 11a in the third row are in contact with the upper oblique side surfaces of the honeycomb units 11a in the second row, the opposing vertical side surfaces are in contact with each other, and the opposite vertical side surfaces are in contact with the pillars 5, 5. The honeycomb units 11a in the fourth row and beyond are arranged in a similar manner.

[0017] The honeycomb unit 11a is made of wood, and as shown in FIG. 3, six trapezoidal blocks 13 cut from scrap wood from framework members such as pillars are assembled into a regular hexagon and joined with screws 14. The trapezoidal blocks 13 may be joined with an adhesive. Three trapezoidal blocks 13 may be combined to form a half honeycomb unit 11b. Half honeycomb unit 11b' may also be formed by joining both ends of the half honeycomb unit 11b with wooden connecting pieces 13a for reinforcement. The half honeycomb unit 11b can be used to fill the spaces on both sides of the second, fourth, and sixth honeycomb units 11a in FIG. 2.

[0018] When two honeycomb units 11a are arranged between pillars 5, 5, the center-to-center dimension S between the pillars 5, 5 is 910 mm, and the thickness T of the pillars 5, 5 is 105 mm, the face-to-face dimension W of the honeycomb units 11a is (ST) / 2 = (910 - 105) / 2 = 402.5 mm, the corner-to-corner dimension H is (W / 2) / √3x4 = 201.25 / √3x4 = 464.8 mm, and the length L of the bottom surface of the trapezoidal block 13 is (W / 2) / √3x2 = 201.25 / √3x2 = 232.4 mm. The thickness T of the honeycomb units 11a is 105 mm, the same as the thickness of the pillars 5, 5, but may be less than that.

[0019] The bearing surface material 12 that constitutes the outer wall of the double bearing wall 2 has a rectangular shape larger than the opening 9 surrounded by the two pillars 5, 5, the sill 4, and the cross member 6, and has a thickness of 28 mm in the embodiment, but is not limited to this. Mois (registered trademark) manufactured by Aicatec Building Materials Co., Ltd. is preferred as the bearing surface material 12. The outer periphery of the bearing surface material 12 is fixed to the two pillars 5 (first and second framework members), the sill 4, and the cross member 6 (third and fourth framework members) with nails 15.

[0020] The single shear wall 10 is a shear face material (the third shear face material of the present invention) that has the same shape and is made of the same material as the shear face material 12 of the double shear wall 2, and its outer edge is fixed by nailing to two pillars 5 (the first and second frame members), a base 4, and cross members 6 (the third and fourth frame members).

[0021] Next, a construction procedure for the bearing wall 2 of the wooden house 1 according to the embodiment of the present invention will be described.

[0022] As shown in Figure 1, a wooden house 1 is constructed on a foundation 3 using a wooden frame construction method with bases 4, pillars 5, and cross members 6 (frame members) such as beams and girders. Between two pillars 5, ties 7 and studs 8 are installed as needed.

[0023] As shown in FIG. 4, two honeycomb units 11a in the first tier are installed on the base 4 of the opening 9 where the double bearing wall 2 will be installed. The isosceles triangle gap and right triangle gap between the honeycomb units 11a and the base 4 may be filled with triangular blocks cut from scrap wood to distribute the load. Furthermore, it is preferable to form grooves 4a in the base 4 where the corners of the honeycomb units 11a come into contact, as shown in FIG. 5(a), into which the corners of the honeycomb units 11a fit, or to provide chamfers 11c at the corners of the honeycomb units 11a, as shown in FIG. 5(b), to prevent the load from concentrating on the base 4. Next, one honeycomb unit 11a in the second tier is installed on top of the two honeycomb units 11a in the first tier, and two honeycomb units 11a in the third tier are installed on top of the single honeycomb unit 11a in the second tier. This process is repeated until the honeycomb units are positioned close to the cross member 6. Next, the tethers 7 are placed so as to contact the upper corners of the top honeycomb unit 11a. Both ends of the tethers 7 are joined to the columns 5 with connecting parts K1, such as Tech One (registered trademark) jaw brackets and drift pins. The isosceles triangular gaps and right-angled triangular gaps between the honeycomb units 11a and the tethers 7 may be filled with triangular blocks cut from scrap wood, similar to the gaps in the base 4, to distribute the load. By installing the honeycomb units 11a and assembling the honeycomb core 11 in this manner, the outdoor outer surface of the honeycomb core 11 becomes flush with the base 4, columns 5, beams, girders, and other cross members 6 (frame members).

[0024] Next, the bearing surface material 12 is placed so as to overlap the honeycomb core 11, and the outer edge of the bearing surface material 12 is nailed with nails 15 to the foundation 4, columns 5, beams, girders, and other cross members 6 (frame members) as shown in Figures 6 and 7. Nailing is preferably done at a distance from the edge of the bearing surface material 12 that is at least the thickness of the bearing surface material 12 (for example, 12 mm), at a constant pitch of 100 mm or less. If there are studs 8 or tethers 7 between the two columns 5, the nails are driven along them at a pitch twice the circumference.

[0025] In the opening 9 where the single-layer shear wall 10 is to be provided, a shear face material similar to the shear face material 12 is placed, and the outer edge is nailed to the cross members 6 (frame members) such as the foundation 4, columns 5, beams, and girders in the same manner as the shear face material 12 of the double-layer shear wall 2.

[0026] As shown in FIG. 2, the honeycomb core 11 constituting the thus constructed shear wall 2 has honeycomb units 11a in contact with each other and with the columns 5, 5, sills 4, and truss members 7. This provides high strength against external forces, such as earthquakes, that tend to deform the columns 5, 5, sills 5, and cross members 6 into a parallelogram. Furthermore, because the honeycomb core 11 and the shear face members 12 overlap each other, external forces acting on the shear wall 2 are distributed among the honeycomb core 11 and the shear face members 12, providing high strength against displacement perpendicular to the plane. Thus, the shear wall 2 of this embodiment has high strength due to the synergistic effect of the honeycomb core 11 and the shear face members 12. This provides strong resistance to external forces such as earthquakes and typhoons, improving the strength of the shear wall 2 and preventing the nails 15 from loosening.

[0027] In addition, double bearing walls 2 consisting of honeycomb cores 11 and bearing surface materials 12 are placed and attached to the openings 9 on the sides, including the pillars 5 at the four corners of the wooden house, so that the external forces acting on the entire skeleton of the wooden house can be efficiently resisted.

[0028] Furthermore, the honeycomb core 11 is made up of multiple honeycomb units 11a, each of which is made by combining six trapezoidal blocks 13 cut from waste frame members into a regular hexagon, eliminating the need to dump or incinerate the waste material, which is environmentally friendly and contributes to the achievement of the SDGs by making effective use of the waste material. Furthermore, the honeycomb core 11 is made of wood, which prevents condensation from forming inside the wall, preventing mold from growing and preventing rust from forming on the nails used to attach the load-bearing surface materials 12.

[0029] FIG. 8 shows a first modified example of the arrangement of the honeycomb units 11a of the honeycomb core 11. In FIG. In this first modified example, two honeycomb units 11a in the first row are placed on the base 4, one honeycomb unit 11a in the second row is placed on top of that, and two honeycomb units 11a in the third row are placed on top of that, and then a first connecting member 7a is attached. Furthermore, two honeycomb units 11a in the fourth row are placed on the first connecting member 7a, one honeycomb unit 11a in the fifth row is placed on top of that, and two honeycomb units 11a in the sixth row are placed on top of that, and then a second connecting member 7b is attached. Both ends of the first and second connecting members 7 are joined to the pillars 5 with connecting parts K1, such as Tech One (registered trademark) jaw brackets and drift pins.

[0030] FIG. 9 shows a second modified example of the arrangement of the honeycomb units 11a of the honeycomb core 11. In FIG. In this second modified example, one side surface of the honeycomb unit 11a is placed downward. The lower side surfaces of two adjacent honeycomb units 11a spaced apart in the horizontal direction in the first row are in contact with the base 4, and the opposing left and right corners are spaced apart, with the opposite corners in contact with the columns 5, 5. The lower oblique side surface of one honeycomb unit 11a in the second row is in contact with the upper oblique side surface of two honeycomb units 11a in the first row. The lower side surfaces of two honeycomb units 11a in the third row are in contact with the upper side surfaces of the honeycomb units 11a in the first row, and the lower oblique side surfaces are in contact with the upper oblique side surfaces of the honeycomb units 11a in the second row. The honeycomb units 11a in the fourth row and beyond are placed in the same manner. It is preferable to place half honeycomb units 11b between the two honeycomb units 11a in the first row and on both sides of the single honeycomb unit 11a in the top row. Furthermore, a body tie 7 is provided on the top honeycomb unit 11a. Both ends of the body tie 7 are joined to the pillars 5 with joining parts K1 such as Tech One (registered trademark) jaw brackets and drift pins.

[0031] In the above embodiment, the honeycomb unit 11a is directly placed and attached between the pillars 5, 5, but it is also possible to form a bearing wall panel 16 as shown in Figure 10 in advance and then fit this bearing wall panel 16 between the pillars 5, 5.

[0032] The bearing wall panel 16 shown in FIG. 10 is composed of a rectangular frame 17 and a honeycomb core 11. The frame 17 is composed of first and second vertical frame members 17a and 17b that are parallel to each other, and third and fourth horizontal frame members 17c and 17d that are parallel to each other and perpendicular to the first and second frame members 17a and 17b. As in the previous embodiment, the honeycomb core 11 has multiple honeycomb units 11a, each of which is formed by combining six trapezoidal blocks 13 into a regular hexagon. These units are arranged in a honeycomb pattern inside the rectangular frame 17 surrounded by the first and second frame members 17a and 17b and the third and fourth frame members 17c and 17d when viewed from the thickness direction of the bearing wall panel 16. In addition, a tether 7 is provided on top of the top honeycomb unit 11a. The honeycomb units 11a are preferably joined to one another using joining parts K2 such as Tech One (registered trademark) mortise pipes and drift pins, wooden mortise plugs, etc. The honeycomb core units 11a and the frame 17, and the body connecting members 7 and the frame 17 are preferably joined to one another using joining parts K3 such as Tech One (registered trademark) chin brackets and drift pins, etc.

[0033] This bearing wall panel 16 can be fitted between the pillars 5, 5 of an existing house and fixed to the frame 17 and pillars 5 with an appropriate joining means, and can be used for earthquake reinforcement. Because the bearing wall panel 16 joins the honeycomb units 11a to each other and the honeycomb units 11a to the frame 17, it is not necessary to provide a bearing surface material 16 as shown in Figure 2. A glass or plastic cover can be attached detachably to the space in the center of the honeycomb units 11a and the space between the honeycomb units 11a and the frame, and conditioned air from an air conditioner can be circulated by removing the cover.

[0034] The present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the present invention as defined in the claims.

[0035] For example, in the above embodiment, the double bearing walls 2 are applied to the openings 9 in the side walls including the pillars 5 at the four corners of the wooden walkway house 1, but if there is a window frame in the opening 9 in the side wall including the pillars 5 at the four corners, the double bearing walls 2 can be attached above and below the window frame, or if there is a door frame, the double bearing walls 2 can be attached to the opening 9 next to the door frame. Also, it is preferable to provide double bearing walls 2 in all of the four openings 9 in the side walls including the pillars 5 at the four corners (outside corners), but if there are circumstances in the framework structure that make it impossible to provide double bearing walls 2 in the openings 9, the attachment of the bearing walls 2 to those openings 9 may be omitted, and if there is an inside corner pillar 5, the double bearing walls 2 may also be provided in the opening 9 in the side wall including the inside corner pillar 5.

[0036] The double bearing wall 2 of the present invention can be applied to the floor wall of the first floor and the ceiling wall (which also serves as the floor of the second floor), as will be described below.

[0037] As shown in Figure 11(a), in the case of a floor load-bearing wall 21 applied to a floor wall, notches 18 are made around the periphery of an opening 9 surrounded by four foundations 4 adjacent to the pillars 5 at the four corners of a wooden house 1, a support plate 19 is fitted into this notch 18, a honeycomb core 11 is placed on this support plate 19, and then a load-bearing surface material 12 is placed on top and nailed with nails 15.

[0038] As shown in Figure 12(a), in the case of a ceiling shear wall 22 applied to a ceiling wall, as in the case of a floor shear wall 21, notches 18 are made around the periphery of an opening 9 surrounded by two beams 6a and two girders 6b adjacent to the columns 5 at the four corners, a support plate 19 is fitted into this notch 18, a honeycomb core 11 is placed on this support plate 19, and then a shear surface material 12 is placed on top and nailed with nails 15. In the case of the floor bearing wall 21 or the ceiling bearing wall 22, it is preferable to provide notches 20a, 20b at the four corners of the support plate 19 and the bearing surface material 12 so as not to interfere with the pillars 5 or studs 8.

[0039] In this way, double load-bearing walls 21, 22 consisting of honeycomb core 11 and load-bearing surface material 12 are placed and attached in a strategic manner to the openings 9 in the floor or ceiling surface of the first floor (the floor surface of the second floor) adjacent to the pillars 5 at the four corners of the wooden house, so that they can efficiently resist external forces acting on the entire frame of the wooden house.

[0040] In the above embodiment, the honeycomb unit 11a is in surface contact with the pillar 5 or the cross member 6. However, as shown in FIG. 13, of the left and right honeycomb units 11a, a convex portion 11d may be formed on the vertical side surface facing the pillar 5 of the left honeycomb unit 11a and a concave portion 11e may be formed on the side surface opposite that, and a convex portion 11d may be formed on the vertical side surface facing the pillar 5 of the right honeycomb unit 11a and a convex portion 11d may also be formed on the side surface opposite that, so that the convex portions 11d of the left and right honeycomb units 11a fit into the concave grooves 5a formed vertically in the pillar 5, and the concave portion 11e of the left honeycomb unit 11a and the convex portion 11d of the right honeycomb unit 11a fit into each other. [Explanation of symbols]

[0041] 1...Wooden house 2...Double shear wall 3…Fundamentals 4...Base 5...pillar 5a…concave groove 6...Horizontal beam 6a…beam 6b…digit 7, 7a, 7b...body connecting material 8...Stud 9...Opening 10...Single load-bearing wall 11...Honeycomb core 11a...Honeycomb unit 11b...Half honeycomb unit 11b'...Half honeycomb unit 11c...Chamfered 11d...Convex part 12...Shear surface material 13...Trapezoidal block 13a...Connecting piece 14...bis 15...nail 16...Shear wall panel 17...frame 17a, 17b, 17c, 17d...first, second, third, fourth frame members 18...Cut 19...Support plate 20a, 20b...Notch 21…Floor bearing wall 22...Ceiling load-bearing wall K1, K2, K3... Joint parts

Claims

1. A shear wall of a wooden house is provided to close a rectangular opening surrounded by first and second frame members that are parallel to each other and third and fourth frame members that are perpendicular to the first and second frame members, The bearing wall comprises a honeycomb core and a bearing surface material superimposed on the honeycomb core, The honeycomb core is made up of a plurality of honeycomb units, each of which is formed by combining six trapezoidal blocks into a regular hexagon, and is arranged in a honeycomb shape inside a rectangular opening surrounded by the first and second framework members and the third and fourth framework members when viewed from the thickness direction of the shear wall, A shear wall structure for a wooden house, characterized in that the outer edges of the shear face material are fixed to the first and second frame members and the third and fourth frame members.

2. 2. A load-bearing wall structure for a wooden house according to claim 1, wherein the trapezoidal blocks are cut from waste wood used in framework members.

3. 2. A shear wall structure for a wooden house according to claim 1, characterized in that the thickness of the honeycomb unit in the thickness direction of the shear wall is the same as or less than the thickness of the first and second frame members and the third and fourth frame members in the thickness direction of the shear wall.

4. 2. A shear wall structure for a wooden house according to claim 1, wherein the outer edges of the bearing surface material are nailed to the first and second frame members and the third and fourth frame members.

5. A bearing wall made of the honeycomb core and the bearing surface material is attached to the opening in the side surface including the pillars at the four corners of the wooden house, A shear wall structure for a wooden house as described in any one of claims 1 to 4, characterized in that the honeycomb core is not present in openings other than the openings on the side of the wooden house including the pillars at the four corners, and only the shear surface material is attached.

6. A bearing wall made of the honeycomb core and the bearing surface material is attached to the opening in the floor or ceiling surface adjacent to the pillars at the four corners of the wooden house, A shear wall structure for a wooden house as described in any one of claims 1 to 4, characterized in that the honeycomb core is not present in openings other than the openings in the floor or ceiling surfaces adjacent to the pillars at the four corners of the wooden house, and only the shear surface material is attached.

7. A construction method for a bearing wall of a wooden house, which is provided to close a rectangular opening surrounded by first and second frame members that are parallel to each other and third and fourth frame members that are parallel to each other and perpendicular to the first and second frame members, a honeycomb core mounting step of arranging a plurality of honeycomb units, each of which is formed by combining six trapezoidal blocks into a regular hexagon, inside a rectangular opening surrounded by the first and second framework members and the third and fourth framework members in a honeycomb shape as viewed from the thickness direction of the bearing wall; and a load-bearing face panel installation step of overlapping a load-bearing face panel on the honeycomb core and fixing the load-bearing face panel to the first and second frame members and the third and fourth frame members by nailing.

8. A shear wall panel for a wooden house is provided to close a rectangular opening surrounded by first and second frame members that are parallel to each other and third and fourth frame members that are perpendicular to the first and second frame members, The bearing wall panel comprises a rectangular frame and a honeycomb core disposed inside the frame, the frame is composed of first and second frame members that are parallel to each other, and third and fourth frame members that are perpendicular to the first and second frame members and are parallel to each other, The honeycomb core is a plurality of honeycomb units, each of which is formed by combining six trapezoidal blocks into a regular hexagon, and is arranged in a honeycomb shape inside a rectangular opening surrounded by the first and second frame members and the third and fourth frame members, when viewed from the thickness direction of the shear wall panel.

Images