Mounting structure of face material in face material bearing wall and face material bearing wall
The mounting structure with linear screw members and strip-shaped plates enhances panel fixation in wooden frame structures, preventing separation and maintaining structural integrity by increasing the fixing force, addressing panel separation issues in wooden frame structures.
Patent Information
- Application Number
- JP2021181448
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-11-05
- Publication Date
- 2025-09-24
- Estimated Expiration
- 2041-11-05
AI Technical Summary
Existing wooden frame structures face issues with panel separation (punching-out) due to excessive forces during earthquakes or strong winds, as nails or screws fail to adequately secure panels to columns and beams, leading to reduced structural integrity.
A mounting structure using linear screw members and strip-shaped plates to securely fasten panel ends to columns, enhancing the fixing force by 1.3 to 11.7 times that of nails, preventing panel separation by allowing screw members to bite into the panel material.
The solution effectively prevents panel separation from columns and beams, maintaining structural integrity even under strong external forces, while allowing for easier installation and handling of panel materials.
Smart Images

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Abstract
Description
[Technical Field]
[0001] The present invention relates to a structure of a bearing wall with a panel attached in a wooden framework structure or a wooden frame wall structure, and to a panel bearing wall. [Background technology]
[0002] There are two types of wooden building structures: a wooden frame structure and a wooden frame wall structure called two-by-four. In a wooden frame structure, wooden columns are attached vertically to horizontally arranged wooden cross members (beams, foundations, etc.) to form the skeleton, and braces and paneling are attached to this skeleton to form load-bearing walls, which prevent the building from shaking or the skeleton from deforming due to earthquakes, strong winds, etc. In the case of wooden frame shear walls with paneling attached (hereinafter referred to as "frame shear walls"), the paneling is attached to a rectangular frame (skeleton) formed by a pair of left and right columns and a pair of top and bottom cross members. Generally, the peripheral parts of the paneling are overlapped with the columns and cross members and fixed in place with nails. In this case, when strong external forces due to earthquakes or strong winds are repeatedly applied to the frame panel shear wall, and excessive forces that try to pull the panel away from the columns and beams are repeatedly applied to the parts where the panel is fixed to the columns and beams with nails, the heads of the nails will dig into or sink into the panel (hereinafter referred to as "digging in, etc."), causing a phenomenon known as punching out, in which the panel separates from the columns and beams, reducing the strength of the frame panel shear wall and leading to the collapse of the building. Furthermore, in buildings with wooden frame wall construction, a load-bearing wall (hereinafter referred to as a "framed panel load-bearing wall") is formed by fastening a panel such as structural plywood with nails to a frame consisting of multiple vertical frames (studs) assembled between the upper and lower frames. However, when strong external forces due to earthquakes or strong winds are repeatedly applied to a framed panel load-bearing wall, and excessive forces are repeatedly applied to the panel and frame (upper frame, lower frame, vertical frames), particularly to the parts where the left and right ends of the panel and the vertical frames are fastened with nails, trying to pull the panel away from the vertical frames, just as in a framed panel load-bearing wall, the heads of the nails may dig into the panel (especially the parts where they are fastened to the vertical frames at the left and right ends), causing a phenomenon known as punching out, in which the panel separates from the frame, starting from the left and right ends of the panel. This reduces the load-bearing capacity of the framed panel load-bearing wall and can lead to the collapse of the building.
[0003] Various proposals have been made to prevent such punching out. For example, Patent Document 1 (Utility Model Registration No. 3175563) discloses a reinforcing material 4 that is sandwiched between the nail head 3a of the nail 3 that secures the bearing surface material 2 to a structural member 1 in a bearing wall made of a bearing surface material 2 of a wooden frame house and the bearing surface material 2, the reinforcing material 4 being a thin, rectangular metal plate with a length shorter than the length of the short side of the bearing surface material 2, a width in the range of 6 to 17 times the diameter of the body 3b of the nail 3, and a thickness of 0.5 mm or less, and the surface of the reinforcing material 4 has marks indicating where to drive the nails to achieve a specified wall strength multiplier. However, in a shear wall using the reinforcing material of Patent Document 1, the reinforcing material 4 is made thin, with a thickness of 0.5 mm or less, and the nails 3 penetrate the reinforcing material 4 and are driven into the shear surface material 2 and the structural material 1, or a protrusion 36 for temporary fastening is provided on the reinforcing material 4, and the nails 3 are driven into the shear surface material 2 and the structural material 1 from the protrusion 36. For this reason, when strong external forces due to earthquakes, strong winds, etc. are repeatedly applied to a bearing wall, and excessive forces that attempt to pull the bearing surface material 2 away from the structural material 1 are repeatedly applied to the part where the bearing surface material 2 and the structural material 1 (the girth 8, the column 10, and the base 12) are fixed with the nails 3 via the reinforcing material 4, the thinness of the reinforcing material 4 may cause the nail head 3a of the nail 3 to penetrate through the reinforcing material 4, and the nail head 3a may dig into the bearing surface material 2, resulting in a problem that it is not possible to sufficiently prevent punching-out, in which the bearing surface material 2 separates from the structural material 1.
[0004] Furthermore, Patent Document 2 (JP 2008-231889 A) discloses a reinforcement structure for a load-bearing wall in which a beam 5 is placed horizontally across the upper ends of a pair of spaced apart pillars 3a, 3b whose base ends are fixed on a foundation 1 to form a rectangular wall frame 7, and each side of a rectangular panel 9 is fixed to the base 1 of the wall frame 7, the pair of pillars 3a, 3b, and the beams 5 with a plurality of nails 11, in which a plurality of fixing holes 29 are drilled in the longitudinal direction of a metal band plate to form a reinforcing plate 27, and the pair of reinforcing plates 27 are overlapped on a longitudinal portion of two parallel sides of the panel 9, at least a portion of the nail heads 11a, and fixed with linear fixing members (wood screws) 31 that are inserted into the fixing holes 29, penetrate the panel 9, and reach the wall frame 7. However, in the reinforcement structure of the shear wall of Patent Document 2, the surface material 9 and the base 1, the pair of columns 3a, 3b, and the beam 5 are fixed together with a plurality of nails 11, and the linear fixing members (wood screws) 31 only serve to fix the surface material 9 and the pair of columns 3a, 3b as an auxiliary means. When strong external forces such as earthquakes or strong winds repeatedly act on the beam 5, causing it to move back and forth in the axial direction of the beam 5 relative to the base 1, excessive forces repeatedly act on the parts where the surface material 9, the base 1, the pair of columns 3a, 3b, and the beam 5 are fixed together with the nails 11, trying to separate the surface material 9 from the pair of columns 3a, 3b, etc., and the nail heads 11a bite into the surface material 9, etc., and there is a problem in that it is not possible to sufficiently prevent punching-out, in which the surface material 9 separates from the pair of columns 3a, 3b, etc.
[0005] In buildings with a wooden frame structure, interior walls made of gypsum boards or the like are installed, and since these interior walls are attached to the outside of the columns and beams, in the case of a frame panel shear wall, the panel is attached to the columns and beams on the inside of the interior wall. In this case, in a frame panel shear wall, in which the peripheral parts of the panel are attached by overlapping them to the foundation, columns, and beams, as in Patent Documents 1 and 2, the panel protrudes outside the columns and beams, creating a step, resulting in an interior wall with gaps between the gypsum board and the columns and beams, which is inferior in strength to an interior wall in which the gypsum board is attached directly to the surfaces of the columns and beams. For this reason, the overlapping parts of the paneling of a pair of adjacent columns are cut out to create a stepped column, and paneling is then attached to the stepped part of this column, resulting in a post-and-beam panel-type shear wall with no step, where the paneling does not protrude outward from the column or beam (hereinafter referred to as "stepless post-and-beam panel-type shear wall"). The framed surface bearing walls of Patent Documents 1 and 2 cannot be applied to this stepless framed surface bearing wall. Even if a stepless frame panel shear wall is fixed to a column using a method of fixing a load-bearing panel 2 to a column 10 with a nail 3 using a reinforcing member 4 as in Patent Document 1, or a method of fixing a panel 9 to a pair of columns 3a, 3b with a nail 11 by placing a reinforcing plate 27 on the nail head 11a as in Patent Document 2, when a strong external force acts repeatedly due to an earthquake or strong wind, causing the beam to move back and forth in its axial direction relative to the foundation, the upper ends of the pair of columns will move back and forth in the axial direction of the beam relative to the lower ends, and the left and right ends of the panel will be restrained by the step of the column, so the panel will not move left and right (along the axis of the beam) In Patent Document 1, the nail head 3a of the nail 3 penetrates the reinforcing material 4, and the nail head 3a bites into the load-bearing surface material 2, causing the load-bearing surface material 2 to separate from the structural material 1, which is a problem in that punching-out cannot be sufficiently prevented; in Patent Document 2, the nail head 11a bites into the surface material 9, causing the surface material 9 to separate from the pair of columns 3a, 3b, which is a problem in that punching-out cannot be sufficiently prevented. [Prior art documents] [Patent documents]
[0006] [Patent Document 1] Utility Model Registration No. 3175563 [Patent Document 2] Japanese Patent Application Laid-Open No. 2008-231889 Summary of the Invention [Problem to be solved by the invention]
[0007] The problem that this invention aims to solve is to ensure that, when forming a frame panel shear wall in a wooden frame structure, in which a panel is fixed with fixing members between a pair of adjacent columns, or when forming a frame panel shear wall in a building with a wooden frame wall structure, in which a panel such as structural plywood is fixed with fixing members to a frame, even if a strong external force repeatedly acts on these panel shear walls and excessive forces that try to pull the panel from the columns or vertical frames are repeatedly applied to the fixed parts between the panel and the columns, or between the fixed parts of the left and right ends of the panel and the vertical frames, the fixing members will bite into the panel, etc., and sufficiently prevent punching-out, in which the panel is separated from the pair of columns or vertical frames; particularly, when the panel is attached so that it does not shift in the axial direction of the beam, even if excessive forces are repeatedly applied in the up-down direction (in the axial direction of the columns) or back-to-front direction to the parts where the panel and the column are fixed. [Means for solving the problem]
[0008] The invention of claim 1 is a mounting structure for a panel in a panel bearing wall of a wooden frame building formed by attaching a panel to a framework formed by a left-side column, a right-side column adjacent to the left-side column, an upper cross member, and a lower cross member, in which the left and right ends of the panel are temporarily fixed to the left-side column and the right-side column with a plurality of nails that penetrate the panel, and the left and right ends of the panel are firmly fixed to the left-side column and the right-side column with a plurality of linear screw members that penetrate the panel, When an external force acting on the bearing wall attempts to pull it away from the right-side column, even if an excessive force repeatedly acts on the plurality of linear screw members in each of the left-side column and the right-side column, the plurality of linear screw members bite into or sink into the face material, preventing the face material from separating from the left-side column and / or the right-side column. A vertically long strip-shaped plate through which the plurality of linear screw members pass is interposed between the heads of the plurality of linear screw members and the face material. The fixing force with which the plurality of linear screw members firmly fix the left and right ends of the face material to the left column and the right column is 1.3 to 11.7 times the fixing force with which the plurality of nails temporarily fix the left and right ends of the face material to the left column and the right column. The present invention provides a mounting structure for paneling in panel-bearing walls to solve the above-mentioned problems.
[0010] Claim 2 The invention solves the above-mentioned problem by providing a mounting structure for panel materials in panel-bearing walls in which the left-side column and the right-side column have cutouts formed in the areas where the panel materials overlap, and the left and right ends of the panel materials are overlapped on the cutouts, preventing the panel materials from shifting left and right relative to the left-side column and the right-side column.
[0011] Claim 3 The present invention solves the above-mentioned problems by providing a mounting structure for a surface material in a surface material bearing wall, in which the band-shaped plate is made of a steel plate having a thickness of 0.7 mm to 4.0 mm.
[0012] Claim 4The invention is a mounting structure for a panel in a panel bearing wall of a wooden frame wall structure building formed by mounting a panel to a frame consisting of an upper frame, a lower frame, and a plurality of vertical frames assembled between the upper frame and the lower frame, in which the left and right ends of the panel are temporarily fixed to the left and right end vertical frames of the plurality of vertical frames with a plurality of nails that penetrate the panel, and the left and right ends of the panel are firmly fixed to the left and right end vertical frames with a plurality of linear screw members that penetrate the panel, When an external force acting on the panel shear wall attempts to pull it away from the vertical frame at the right end, even if excessive force is repeatedly applied to the multiple linear screw members at the left and right end vertical frames, the multiple linear screw members will bite into or sink into the panel, preventing the left and right ends of the panel from separating from the vertical frame at the left and / or right end. A vertically long strip-shaped plate through which the multiple linear screw members pass is interposed between the heads of the multiple linear screw members and the panel. The fixing force with which the plurality of linear screw members firmly fix the left and right ends of the face material to the left column and the right column is 1.3 to 11.7 times the fixing force with which the plurality of nails temporarily fix the left and right ends of the face material to the left column and the right column. The present invention provides a mounting structure for paneling in panel-bearing walls to solve the above-mentioned problems.
[0013] Claim 5 The invention is a panel bearing wall of a wooden frame building formed by attaching a panel to a framework formed by a left-side column, a right-side column adjacent to the left-side column, an upper cross member, and a lower cross member, in which the left and right ends of the panel are temporarily fixed to the left-side column and the right-side column with a plurality of nails that penetrate the panel, and the left and right ends of the panel are firmly fixed to the left-side column and the right-side column with a plurality of linear screw members that penetrate the panel, and the panel is separated from the left-side column and the right-side column. When an external force acts on the bearing wall, even if an excessive force is repeatedly applied to the plurality of linear screw members in each of the left-side column and the right-side column, the plurality of linear screw members bite into or sink into the face material, preventing the face material from separating from the left-side column and / or the right-side column. A vertically long strip-shaped plate through which the plurality of linear screw members pass is interposed between the heads of the plurality of linear screw members and the face material. The fixing force with which the plurality of linear screw members firmly fix the left and right ends of the face material to the left column and the right column is 1.3 to 11.7 times the fixing force with which the plurality of nails temporarily fix the left and right ends of the face material to the left column and the right column. The present invention provides a face-bearing wall to solve the above problems.
[0014] Claim 6 The invention is a panel bearing wall of a wooden frame wall structure, which is formed by attaching a panel to a frame consisting of an upper frame, a lower frame, and a plurality of vertical frames assembled between the upper and lower frames, and the left and right ends of the panel are temporarily fixed to the left and right vertical frames of the plurality of vertical frames with a plurality of nails that penetrate the panel, and the left and right ends of the panel are firmly fixed to the left and right vertical frames with a plurality of linear screw members that penetrate the panel, and the left and right ends of the panel are fastened to the left and right vertical frames. When an external force acts on the panel shear wall, trying to separate the panel from the vertical frame at the left and right ends, even if an excessive force is repeatedly applied to the plurality of linear screw members in the vertical frame at the left and right ends, the plurality of linear screw members will bite into or sink into the panel, preventing the left end and right end of the panel from separating from the vertical frame at the left and / or right ends. A vertically long strip-shaped plate, through which the plurality of linear screw members pass, is interposed between the heads of the plurality of linear screw members and the panel. The fixing force with which the plurality of linear screw members firmly fix the left and right ends of the face material to the left column and the right column is 1.3 to 11.7 times the fixing force with which the plurality of nails temporarily fix the left and right ends of the face material to the left column and the right column. The present invention provides a face-bearing wall to solve the above problems. [Effects of the Invention]
[0015] In the mounting structure of the panel in the panel bearing wall of the invention described in claim 1, even if a strong external force repeatedly acts on the panel bearing wall of a wooden frame building, and excessive force repeatedly acts on the fixing portion of the panel and the left-side column and / or the right-side column, trying to pull the panel away from the left-side column and / or the right-side column, the linear screw member bites into the panel, etc., and the panel can be sufficiently prevented from punching out, which is the panel being separated from the left-side column and / or the right-side column, Furthermore, the face material can be firmly fixed to the left-side and right-side columns with a fixing force greater than that of the multiple nails using the multiple linear screw members, and the face material can be temporarily fixed to the left-side and right-side columns with a fixing force smaller than that of the multiple linear screw members using the multiple nails.
[0017] Claim 2 The mounting structure for the panel of the invention described above further has the effect of preventing the panel from shifting left and right, and even if excessive force in the up and down or front and back directions is repeatedly applied to the fixing portion between the panel and the left-side pillar and / or the right-side pillar, the linear screw member will bite into the panel, etc., thereby sufficiently preventing punching-out, in which the panel separates from the left-side pillar and / or the right-side pillar.
[0018] Claim 3 The mounting structure for the panel of the invention described above further has the effect of effectively preventing punching-out, in which the panel separates from the left-side column and / or the right-side column due to the linear screw member biting into the panel, without impairing the workability of mounting the strip-shaped plate.
[0019] Claim 4 In the mounting structure for panel materials of the invention described above, even if a strong external force is repeatedly applied to the panel material load-bearing wall of a building with a wooden frame wall structure, and excessive force is repeatedly applied to the left and right ends of the panel material and the fixing parts of the left and right vertical frames, trying to pull the left and right ends of the panel material away from the left and right vertical frames, the linear screw members will bite into the panel material, etc., and the effect is achieved that punching out, in which the left and right ends of the panel material separate from the left and right vertical frames, can be sufficiently prevented.
[0020] Claim 5 In the panel shear wall of the invention described above, even if a strong external force repeatedly acts on the panel shear wall of a wooden frame building, and excessive force that tries to pull the panel away from the left-side column and / or right-side column repeatedly acts on the fixed portion of the panel and the left-side column and / or the right-side column, the linear screw member will bite into the panel, etc., and the effect is achieved that punching out, in which the panel is separated from the left-side column and / or the right-side column, can be sufficiently prevented.
[0021] Claim 6 In the panel bearing wall of the invention described above, even if a strong external force is repeatedly applied to the panel bearing wall of a building with a wooden frame wall structure, and excessive force is repeatedly applied to the left and right ends of the panel and the fixing parts of the left and right vertical frames, trying to pull the left and right ends of the panel away from the left and right vertical frames, the linear screw members will bite into the panel, etc., and the effect is achieved that punching out, in which the left and right ends of the panel are separated from the left and right vertical frames, can be sufficiently prevented. [Brief explanation of the drawings]
[0022] [Figure 1] FIG. 1 is a perspective view showing the configuration of a framed face bearing wall among face bearing walls according to an embodiment of the present invention. [Figure 2] FIG. 2 is a front view of the framed shear wall shown in FIG. 1. [Figure 3] 3 is a cross-sectional view taken along the line AA in FIG. 2. [Figure 4] 4 is an enlarged view of a portion B-B' and a portion C-C' in FIG. 3. [Figure 5] FIG. 2 is an exploded perspective view of the framed shear wall shown in FIG. 1. [Figure 6] 10 is an explanatory diagram illustrating the movement of the panel 6 when an excessive force acts on the panel 6 to pull it away from the pillars 2 and 3 in the front direction. FIG. [Figure 7] FIG. 1 is a perspective view showing the configuration of a frame-type face bearing wall among face bearing walls according to an embodiment of the present invention. [Figure 8] FIG. 8 is a front view of the framed face material bearing wall shown in FIG. 7. [Figure 9] 9A and 9B are cross-sectional views taken along the lines DD and EE in FIG. 8. [Figure 10] FIG. 8 is an exploded perspective view of the frame-type face material shear wall shown in FIG. 7, with face materials and the like disassembled from the frame. DETAILED DESCRIPTION OF THE INVENTION
[0023] [Composition of frame shear wall] Figure 1 is a perspective view showing the configuration of a framed panel shear wall, which is one of the panel shear walls of an embodiment of the present invention, Figure 2 is a front view of the framed panel shear wall shown in Figure 1, Figure 3 is a cross-sectional view taken along line AA in Figure 2, Figure 4(a) is an enlarged view of the B-B' portion of Figure 3, Figure 4(b) is an enlarged view of the C-C' portion of Figure 3, and Figure 5 is an exploded perspective view of the framed panel shear wall shown in Figure 1. In the diagram, 1 is a frame surface bearing wall, 2 and 3 are columns, 2hu, 2hs, 3hu, and 3hs are tenons, 2k and 3k are notches, 4 is a beam, 4a and 4b are mortise holes, 5 is a base, 5a and 5b are mortise holes, 6 is a surface material, 7 and 8 are strip plates, 7a and 8a are through holes, 9 and 10 are wood screws, 9a and 10a are heads, 9b and 10a are bodies, 11 and 12 are nails, 11a and 12a are heads, and 11b and 12a are bodies. The frame surface material shear wall 1 is composed of left and right columns 2 and 3, a beam 4, a base 5, a surface material 6, etc., with column 2 being the left column of the present invention, column 3 being the right column of the present invention, beam 4 being the upper cross member of the present invention, and base 5 being the lower cross member of the present invention.
[0024] In the frame panel shear wall 1, the beams 4 and base 5 are arranged vertically with their axes oriented horizontally (left and right), and the left and right pillars 2 and 3 are assembled between the beams 4 and base 5 to form the framework of the wooden frame structure, and the panel 6 is attached to the left and right pillars 2 and 3. In this case, tenons 2hu and 3hu are formed on the upper surfaces of the pillars 2 and 3, tenons 2hs and 3hs are formed on the lower surfaces of the pillars 2 and 3, mortise holes 4a and 4b are formed on the lower surface of the beam 4, and mortise holes 5a and 5b are formed on the upper surface of the base 5, and the tenons 2hu and 3hu of the pillars 2 and 3 are fitted into the mortise holes 4a and 4b of the beam 4, and the tenons 2hs and 3hs of the pillars 2 and 3 are fitted into the mortise holes 5a and 5b of the base 5, thereby assembling and fixing the left and right pillars 2 and 3 to the beam 4 and base 5. In addition, the left column 2 has a notch 2k formed by cutting out the right corner of the front side of the square column, and the right column 3 has a notch 3k formed by cutting out the left corner of the front side of the square column. Then, the left and right ends of the panel 6 are fitted into the notches 2k, 3k of the pillars 2, 3, and the upper and lower parts of the left and right ends of the panel 6 are temporarily fixed to the pillars 2, 3 by a plurality of nails 11, 12 that penetrate the panel 6, and the left and right ends of the panel 6 are firmly fixed to the pillars 2, 3 via strip plates 7, 8 by a plurality of wood screws 9, 10 that penetrate the panel 6 (details will be described later). Furthermore, the upper part of each of the pillars 2 and 3 may be connected to the beam 4 with a capital metal piece, and the lower part of each of the pillars 2 and 3 may be connected to the base 5 with a base metal piece.
[0025] The pillars 2 and 3 are made of wooden materials such as cypress (hinoki), hiba (cypress leaves), cedar (sugi), domestic pine (Japanese pine, larch, Yezo spruce, and Todo fir), Douglas fir, and European red pine, with cross-sectional dimensions (short side x long side) of 105 to 240 mm x 105 to 240 mm, and a height (length) of approximately 1 m to 9 m. The beam 4 is made of the same wood as the pillars 2 and 3, and has a cross-sectional dimension (short side x long side) of 105 to 240 mm x 105 to 1200 mm, and a length of about 1 m to 12 m. The base 5 is made of the same wood as the pillars 2 and 3, and its cross-sectional dimensions (short side x long side) are 105 to 240 mm x 105 to 1200 mm, and its length is approximately 1 m to 12 m. The surface material 6 is made of wood-based load-bearing surface materials such as structural plywood, MDF (Medium density fiberboard), OSB (Oriented Strand Board, a board made by laminating and gluing thin pieces of wood together with a specific direction), particle board, etc., and is 5mm to 45mm thick, 250mm to 2000mm wide (length in the left-right direction), and approximately 1m to 9m high (length in the up-down direction), which is several tens of mm or more shorter than the height of the columns 2 and 3 (the distance between the bottom surface of the beam 4 and the top surface of the base 5).
[0026] [Strip Plate] The strip-shaped plates 7, 8 are made of long metal plates that are long in the vertical direction, such as alloy-plated steel plates, and the strip-shaped plates 7, 8 have multiple through holes 7a, 8a lined up in the longitudinal direction (vertical direction) through which wood screws 9, 10 pass. The dimensions of the strip plates 7, 8 are a thickness t of 0.7 mm to 4.0 mm, a width w of 10 mm to 40 mm, and a length L of 500 mm to 2000 mm, which is ¼ or more, preferably ⅓ or more, of the height of the face material 6. The thickness t is set to 0.7mm to 4.0mm because, when the left and right ends of the panel 6 are firmly fixed to the pillars 2 and 3 with multiple wood screws 9 and 10 that penetrate the panel 6 via the strip plates 7 and 8, if excessive force is applied to separate the panel 6 from the pillars 2 and 3, if the thickness t is less than 0.7mm, the periphery of the through holes 7a and 8a of the strip plates 7 and 8 may be recessed, causing the heads 9a and 10a of the wood screws 9 and 10 to bite into the panel 6; and if the thickness t is more than 4.0mm, the weight of the strip plates 7 and 8 becomes too heavy, not only making it difficult to handle the strip plates 7 and 8 (the work of fixing the panel 6 to the pillars 2 and 3 with the wood screws 9 and 10 via the strip plates 7 and 8), but also because the strip plates 7 and 8 protrude significantly toward the front from the pillars 2 and 3, interfering with the installation of plasterboard and exterior materials. Therefore, in order to prevent the areas around the through holes 7a, 8a of the strip plates 7, 8 from being recessed and causing the heads 9a, 10a of the wood screws 9, 10 to bite into the surface material 6, it is desirable that the thickness t be 1.0 mm or more, and in terms of the ease of handling the strip plates 7, 8, it is desirable that the thickness t be 2.0 mm or less.
[0027] The width w is set to 10mm to 40mm because if excessive force is applied to the wood screws 9, 10 when trying to peel the surface material 6 from the pillars 2, 3, if the width w is smaller than 10mm, the areas around the through holes 7a, 8a of the strip plates 7, 8 may deform or crack, causing the heads 9a, 10a of the wood screws 9, 10 to dig into the surface material 6, and if the width w is larger than 40mm, the workability of handling the strip plates 7, 8 may be reduced. Therefore, in order to prevent the areas around the through holes 7a, 8a of the strip plates 7, 8 from deforming or cracking, causing the heads 9a, 10a of the wood screws 9, 10 to dig into the surface material 6, etc., it is desirable that the width w be 20 mm or more, and in terms of workability when handling the strip plates 7, 8, it is desirable that the width w be 30 mm or less. The spacing p (pitch) of the through holes 7a, 8a is 50mm to 140mm.This is because if the spacing p is smaller than 50mm, there is a risk that the pillars 2, 3 or the panel 6 will crack or break when the wood screws 9, 10 are screwed into them, and if the spacing p is larger than 140mm, the number of wood screws 9, 10 will be reduced, which will reduce the fixing force of the panel 6 to the pillars 2, 3 by the wood screws 9, 10, and there is a risk that the panel 6 will come off the pillars 2, 3 together with the wood screws 9, 10.
[0028] [Linear screw members, nails] The wood screws 9, 10 have heads 9a, 10a and bodies 9b, 10b, and are made of iron or stainless steel. These wood screws 9 and 10 are the linear screw members of the present invention, but the linear screw members of the present invention are not limited to wood screws and may be coarse threaded screws, hard wood screws, universal screws, special wood screws, hexagonal coach screws, lag screws, etc. The wood screws 9, 10 have a nominal diameter (diameter of the trunks 9a, 10b) of 4.5 mm to 6.2 mm and a length (length of the trunks 9b, 10b) of 56 mm to 100 mm. This is because if the nominal diameter is smaller than 4.5 mm or the length is shorter than 56 mm, the fixing force of the wood screws 9, 10 to the surface material 6 on the pillars 2, 3 will be weak, and there is a risk that the surface material 6 will come off the wood screws 9, 10 together with the pillars 2, 3, and if the nominal diameter is larger than 6.2 mm or the length is longer than 100 mm, the wood screws 9, 10 will penetrate too deeply into the pillars 2, 3, causing cracks or breaks in the pillars 2, 3 and reducing their strength. The wood screws 9, 10 are screwed into the panel 6 through the through holes 7a, 8a of the strip plates 7, 8, penetrate the panel 6 and screwed into the pillars 2, 3, thereby firmly fixing the panel 6 to the pillars 2, 3. The nails 11 and 12 have heads 11a and 12a and bodies 11b and 12b, and are made of round iron nails, stainless steel nails, or the like. Furthermore, the nails 11 and 12 are intended to temporarily fix the surface material 6 to the pillars 2 and 3, and there is no need to make the nails long to firmly fix the surface material 6 to the pillars 2 and 3. From the viewpoint of reducing the workload of hammering in the nails as much as possible, the length of the nails 11 and 12 is 2 to 5 times or less the thickness of the surface material 6. Then, the nails 11 and 12 are driven into the front of the surface material 6, penetrate the surface material 6 and are driven into the pillars 2 and 3, thereby temporarily fixing the surface material 6 to the pillars 2 and 3. The nails 11, 12 may be driven not only into the parts of the surface material 6 where the strip plates 7, 8 are not attached, but also into the parts of the surface material 6 where the strip plates 7, 8 are attached.
[0029] [Fixing strength between surface material and pillar by nails and linear screw members (wood screws)] When the panel 6 is fixed to the columns 2 and 3 via the strip plates 7 and 8 with wood screws 9 and 10, the pull-out strength Pn (N: Newtons) of one wood screw can be calculated using the following formula. Pn=(1 / 3)×((γ0)*(1.5))×d×L×A×B In this formula, γ0 is the standard specific gravity of the surface material, d is the nominal diameter of the wood screw, L is the driving length of the wood screw, A is a coefficient according to the period of use, with 2.0 for short-term use (10 minutes), 1.43 for medium to short-term use (3 days), 1.60 for medium to long-term use (3 months), and 1.1 for long-term use (50 years), B is a coefficient according to the usage environment, with 1.0 for normal usage environments, 0.8 for intermittent wet conditions, and 0.7 for constant wetness or when the moisture content at the time of installation is 20% or more, and (γ0)*(1.5) represents (γ0) to the power of (1.5). Here, assuming the thickness of the face material is 10 mm, the nominal diameter d of the wood screw is 4.5 mm to 6.2 mm, the length L of the wood screw driven (threaded) into the pillar is 46 mm to 90 mm (the length of the wood screw, 56 to 100 mm, minus the thickness of the face material, 10 mm), γ0 = 0.32, A = 1.1, and B = 1.0, then Pn = 0.75 to 3.0 kN (kilonewtons). On the other hand, when the surface panel 6 is fixed to the columns 2 and 3 with nails 11 and 12, the pull-out strength Pk of one nail is Pk = 0.27 to 0.32 kN, assuming that the nail length is 50 mm (the length driven into the column is 50 mm minus the thickness of the surface panel, 10 mm).
[0030] Now, the height (vertical length) of the face plate 6 is 2700 mm, and the lengths of the strip plates 7 and 8 are 1000 mm. If the fixing force that fixes the panel 6 to the pillars 2 and 3 by the wood screws 9 and 10 is expressed as the sum of the pull-out strength of each wood screw, then if the spacing (pitch) between the wood screws 9 and 10 is 100 mm, the number x1 of each of the wood screws 9 and 10 will both be 10, and the fixing force Fx1 that fixes the left end of the panel 6 to the pillar 2 by the wood screw 9 will be Fx1 = Pn × x1 = 7.5 to 30 kN, and the fixing force that fixes the right end of the panel 6 to the pillar 3 by the wood screw 10 will also be Fx1. In contrast, if the fixing force that fixes the panel 6 to the columns 2 and 3 by the nails 11 and 12 is expressed as the sum of the pull-out strength of each nail 11 and 12, if the nails 11 and 12 are driven only into the parts of the panel 6 that are not fitted with the strip plates 7 and 8, then the spacing (pitch) between the nails 11 and 12 is 100 mm, the number x2 of each of the nails 11 and 12 is 16, and the fixing force F2 that fixes the left end of the panel 6 to the column 2 by the nail 11 is Fx2 = Pk × x2 = 4.32 to 5.12 kN, and the fixing force that fixes the right end of the panel 6 to the column 3 by the nail 12 is also Fx2. Furthermore, if nails 11 and 12 are driven into the part of the panel 6 where the strip plates 7 and 8 are attached, the spacing (pitch) between nails 11 and 12 is 150 mm, the number x2' of each of nails 11 and 12 will both be 18, and the fixing force F2' that fixes the left end of panel 6 to pillar 2 by nail 11 will be Fx2' = Pk × x2' = 4.86 to 5.76 kN, and the fixing force that fixes the right end of panel 6 to pillar 3 by nail 12 will also be Fx2'. As a result, the fixing force Fx1 used to fix the panel 6 to the pillars 2 and 3 using the wood screws 9 and 10 is 1.4 to 5.8 times the maximum value of the fixing force Fx2 used to fix the panel 6 to the pillars 2 and 3 using the nails 11 and 12, and 1.3 to 5.2 times the maximum value of Fx2'. Therefore, when fixing the surface material 6 to the pillars 2 and 3 with the wood screws 9 and 10 and the nails 11 and 12, the surface material 6 can be firmly fixed to the pillars 2 and 3 with the wood screws 9 and 10 with a fixing force greater than that of the nails 11 and 12, and the surface material 6 can be temporarily fixed to the pillars 2 and 3 with the nails 11 and 12 with a fixing force smaller than that of the wood screws 9 and 10.
[0031] Here, the height (length in the vertical direction) of the face material 6 is set to 2700 mm, the same as above, and the lengths of the strip-shaped plates 7 and 8 are set to be longer, 1500 mm. If the spacing (pitch) between the wood screws 9 and 10 is 100 mm, the number y1 of each of the wood screws 9 and 10 will be 15, and the fixing force Fy1 that fixes the left end of the panel 6 to the pillar 2 by the wood screw 9 will be Fy1 = Pn × y1 = 11.2 to 45 kN, and the fixing force that fixes the right end of the panel 6 to the pillar 3 by the wood screw 10 will also be Fy1. In contrast, if nails 11 and 12 are driven only into the parts of the panel 6 where the strip plates 7 and 8 are not attached, the spacing (pitch) between nails 11 and 12 will be 100 mm, the number y2 of each of nails 11 and 12 will be 12, and the fixing force Fy2 with which nail 11 fixes the left end of panel 6 to pillar 2 will be Fy2 = Pk × y2 = 3.24 to 3.84 kN, and the fixing force with which nail 12 fixes the right end of panel 6 to pillar 3 will also be Fy2. Furthermore, if nails 11 and 12 are driven into the part of the panel 6 where the strip plates 7 and 8 are attached, and the spacing (pitch) between nails 11 and 12 is 150 mm, the fixing force Fy2' that fixes the left end of the panel 6 to the column 2 by nail 11 will be the same as the above fixing force Fx2', Fy2' = Fx2' = 4.86 to 5.76 kN, and the fixing force that fixes the right end of the panel 6 to the column 3 by nail 12 will also be Fy2'. As a result, the fixing force Fy1 used to fix the panel 6 to the pillars 2 and 3 using the wood screws 9 and 10 is 2.9 to 11.7 times the maximum value of the fixing force Fy2 used to fix the panel 6 to the pillars 2 and 3 using the nails 11 and 12, and 1.9 to 7.8 times the maximum value of Fy2'. In this case too, when fixing the panel 6 to the pillars 2 and 3 with the wood screws 9 and 10 and the nails 11 and 12, the panel 6 can be firmly fixed to the pillars 2 and 3 with the wood screws 9 and 10 with a fixing force greater than that of the nails 11 and 12, and the panel 6 can be temporarily fixed to the pillars 2 and 3 with the nails 11 and 12 with a fixing force smaller than that of the wood screws 9 and 10.
[0032] [Function of frame shear walls] In a frame panel shear wall 1, when a strong external force is repeatedly applied that causes the beam 4 to move back and forth in the axial direction (left and right direction) relative to the foundation 5, the upper ends of the columns 2 and 3 move back and forth in the axial direction of the beam 4 relative to the lower ends, since the lower ends of the columns 2 and 3 are fixed to the foundation 5. In this case, the left side of panel 6 is restrained by notch 2k in column 2, and the right side of panel 6 is restrained by notch 3k in column 3, so panel 6 does not deviate left-right relative to columns 2 and 3 but deviates up-down, and also tends to move away from columns 2 and 3 in the front direction (including the front-upward and front-downward directions). This section explains the movement of such panel material 6 when excessive force acts on it to shift it vertically or vertically away from the pillars 2 and 3 or to pull it away from the front, particularly when excessive force acts on it to pull it away from the pillars 2 and 3 in the front direction. FIG. 6 is an explanatory diagram illustrating the movement of the panel 6 when an excessive force acts to pull the panel 6 away from the columns 2 and 3 in the front direction. FIG. 6(a1) is a cross-sectional view of the vicinity of the wood screw 9 in a state where the panel 6 is fixed to the column 2 by screwing the wood screw 9 through the through hole 7a of the strip plate 7 into the panel 6 and the column 2 (the same view as FIG. 4(a)). FIG. 6(a2) is a cross-sectional view of the vicinity of the wood screw 9 in a state where the panel 6 is fixed to the column 2 by screwing the wood screw 9 into the panel 6 and the column 2 without using the strip plate 7. FIG. 6(a3) is a cross-sectional view of the vicinity of the wood screw 9 in a state where the panel 6 is fixed to the column 2 by screwing the wood screw 9 into the panel 6 and the column 2 without using the strip plate 7. 6(b1) is a cross-sectional view of the vicinity of the wood screw 9 in FIG. 6(a1) when a diagonally upward force is applied to pull the surface material 6 away from the pillar 2; FIG. 6(b2) is a cross-sectional view of the vicinity of the wood screw 9 in FIG. 6(a2) when a diagonally upward force is applied to pull the surface material 6 away from the pillar 2; and FIG. 6(b3) is a cross-sectional view of the vicinity of the nail in FIG. 6(a3) when a diagonally upward force is applied to pull the surface material 6 away from the pillar 2; in the figures, 13 is the nail, 13a is the head, and 13b is the body.
[0033] When a panel 6 is fixed to a pillar 2 with a wood screw 9, if a strong force (diagonal upward force T) acts to pull the panel 6 away from the pillar 2 in a forward direction, and a strong force acts to pull the wood screw 9 out of the pillar 2, the body 9b of the wood screw 9 will not be pulled out of the pillar 2 because the wood screw 9 has a large pull-out strength, and will remain screwed into the pillar 2, and the panel 6 will press the head of the wood screw 9 with force T. In this case, as shown in Figure 6(b1), if a strip plate 7 is interposed between the head 9a of the wood screw 9 and the surface material 6, the head 9a will not bite into the surface material 6, preventing punching out, in which the surface material 6 separates from the pillar 2. On the other hand, as shown in Figure 6(b2), when the head 9a of the wood screw 9 comes into contact with the surface material 6, the surface of the surface material 6 is pressed against the head 9a with a force T, causing the head 9a to bite into the surface material 6, resulting in a punching-out, where the surface material 6 separates from the pillar 2. Furthermore, as shown in Figure 6(a3), when the panel 6 is fixed to the pillar 2 with a nail 13 instead of a wood screw 9, even if a strong force T acts to pull the panel 6 away from the pillar 2, if the body 13b of the nail 13 is not pulled out of the pillar 2 and remains hammered into the pillar 2, the surface of the panel 6 is pressed against the head 13a by the force T, and the head 13a bites into the panel 6, causing the panel 6 to separate from the pillar 2, resulting in a punching-out.
[0034] As described above, in the frame panel shear wall 1, the panel 6 is firmly fixed to the notches 2k, 3k of the columns 2, 3 via the band plates 7, 8 by multiple wood screws 9, 10, and even if a strong external force acts repeatedly to move the beam 4 back and forth in the axial direction (left and right direction) relative to the base 5 and an excessive force acts to pull the panel 6 away from the columns 2, 3 in the front direction, the heads 9a, 10a of the wood screws 9, 10 bite into the panel 6, etc., and punching out, in which the panel 6 separates from the columns 2, 3, is sufficiently prevented.
[0035] [Configuration of frame-type shear walls] Figure 7 is an oblique view showing the configuration of a framed panel shear wall (for one panel) of a panel shear wall according to an embodiment of the present invention, Figure 8 is a front view of the framed panel shear wall shown in Figure 7, Figure 9(a) is a DD cross-sectional view of Figure 8, Figure 9(b) is an EE cross-sectional view of Figure 8, and Figure 10 is an exploded oblique view of the framed panel shear wall shown in Figure 7, with the panel and other components disassembled from the frame. In the figure, 20 is a frame panel shear wall (one panel), 21 is a left vertical frame which is a vertical frame (stud) placed at the left end of the frame panel shear wall, 22 is a right vertical frame which is a vertical frame placed at the right end of the frame panel shear wall, 23 is a stud (vertical frame), 24 is an upper frame, 25 is a lower frame, 26 is a panel, 27 and 28 are strip plates, 27a and 28a are through holes, 29 and 30 are wood screws, 29a and 30a are heads, 29b and 30a are bodies, 31, 32, 33, 34 and 35 are nails, 31a, 32a, 33a, 34a and 35a are heads, and 31b, 32b, 33b, 34b and 35b are bodies. The framed face material shear wall 20 is composed of a left vertical frame 21, a right vertical frame 22, studs 23, a face material 26, etc. In the framed panel bearing wall 20, the upper frame 24 and the lower frame 25 are arranged one above the other with their axial direction horizontal (left-right direction), and the left vertical frame 21, right vertical frame 22, and studs 23 are joined to a part between the upper frame 24 and the lower frame 25 to form a frame for the wooden frame wall structure, with the left end of the panel 26 overlapping the right half of the left vertical frame 21 and the right end of the panel 26 overlapping the left half of the right vertical frame 22, and the panel 26 is attached to this frame. Then, another panel is placed on the left half of the left vertical frame 21, and yet another panel is placed on the right half of the right vertical frame 22, forming a frame panel bearing wall in which multiple panel sheets are arranged continuously in the left-right direction. In this case, the left vertical frame 21, right vertical frame 22, and studs 23 are joined to the upper frame 24 and lower frame 25 using nails or the like (not shown). The number of studs 23 arranged between the left vertical frame 21 and the right vertical frame 22 is not limited to one as in this embodiment, but may be two to four. Furthermore, the left vertical frame 21 and the right vertical frame 22 may be made up of two vertical frames (studs) stacked in the left-right direction, and a head joint may be stacked on the top frame 24.
[0036] The left vertical frame 21, right vertical frame 22, studs 23, upper frame 24, and lower frame 25 are made of the same wooden materials as the pillars 2 and 3, as well as SPF wood, that is, North American coniferous trees such as spruce, pine, and fir. The cross-sectional dimensions (short side x long side) of the left vertical frame 21, right vertical frame 22, and studs 23 are 38mm x 89mm, 38mm x 140mm, 38mm x 184mm, etc., and the height (length) is approximately 1m to 9m. The cross-sectional dimensions (short side x long side) of the upper frame 24 and the lower frame 25 are the same as those of the left vertical frame 21, etc., such as 38mm x 89mm, 38mm x 140mm, 38mm x 184mm, etc., and the length is approximately 1m to 12m. The same material as the face material 6 is used for the face material 26, and it has a thickness of 5mm to 45mm, a width (length in the left-right direction) of approximately 0.9m to 2.5m, and a height (length in the up-down direction) of approximately 1m to 9m, which is the same size as the frame formed by the left vertical frame 21, right vertical frame 22, studs 23, upper frame 24, and lower frame 25.
[0037] [Strip plates, linear screws, nails] The strip-shaped plates 27, 28 have the same structure and are made of the same material as the strip-shaped plates 7, 8, and are provided with a plurality of through holes 27a, 28a arranged in the longitudinal direction (vertical direction) for inserting wood screws 29, 30 therethrough. The dimensions of the strip plates 27 and 28 are a thickness of 0.7 mm to 4.0 mm, a width of 10 mm to 20 mm, and a length of 500 mm to 2000 mm, which is at least 1 / 4 and preferably at least 1 / 3 of the height of the face material 26, and similarly to the strip plates 7 and 8, the thickness t is preferably at least 1.0 mm and at most 2.0 mm. Wood screws 29 and 30 are linear screw members of the present invention, and have the same structure and are made of the same material as wood screws 9 and 10. They have heads 29a and 30a and body portions 29b and 30b, and, like wood screws 9 and 10, have a nominal diameter (diameter of body portions 29a and 30b) of 4.5 mm to 6.2 mm and a length (length of body portions 29b and 30b) of 56 mm to 100 mm. Then, wood screws 29, 30 are screwed into the panel 26 through the through holes 27a, 28a of the strip plates 27, 28, penetrate the panel 26 and screwed into the left vertical frame 21 and the right vertical frame 22, firmly fixing the left end of the panel 26 to the right half of the left vertical frame 21 and firmly fixing the right end of the panel 26 to the left half of the right vertical frame 22. The nails 31 and 32 have the same structure as the nails 11 and 12 and are made of the same material, and have heads 31a and 32a and bodies 31b and 32b. These nails 31 and 32 are used to temporarily fix the left end of the panel 26 to the right half of the left vertical frame 21 and the right end of the panel 26 to the left half of the right vertical frame 22, and their length, like nails 11 and 12, is 2 to 5 times the thickness of the panel 6. Then, the nails 31 and 32 are driven into the front of the surface material 26, penetrate the surface material 26 and are driven into the left vertical frame 21 and the right vertical frame 22, temporarily fixing the left end and right end of the surface material 26 to the right half of the left vertical frame 21 and the left half of the right vertical frame 22. The nails 33, 34, 35 have heads 33a, 34a, 35a and bodies 33b, 34b, 35, and are made of round iron nails, stainless steel nails, etc., and are the same length as or longer than the nails 31, 32. Then, nails 33, 34, 35 are driven into the front of the face plate 26, penetrating the face plate 26 and into the studs 23, upper frame 24, and lower frame 25, thereby fixing the face plate 26 to the studs 23, upper frame 24, and lower frame 25. The nails 31, 32 may be driven not only into the portions of the surface material 26 where the strip plates 27, 28 are not attached, but also into the portions of the surface material 26 where the strip plates 27, 28 are attached.
[0038] [Fixing strength of surface material and vertical frame by nails and linear screw members (wood screws)] When the left and right ends of panel 26 are fixed to the right half of left vertical frame 21 and the left half of right vertical frame 22 via strip plates 27 and 28 using wood screws 29 and 30, the pull-out strength Pn of one wood screw is Pn = 0.75 to 3.0 kN (kilonewtons), as in the case of wood screws 9 and 10, assuming that the thickness of panel 26 is 10 mm, the same as panel 6, the nominal diameter of the wood screw is 4.5 mm to 6.2 mm, and the length of the wood screw is 56 mm to 100 mm. On the other hand, when the panel 26 is fixed to the left vertical frame 21 and the right vertical frame 22 using nails 31 and 32, the pull-out strength Pk of one nail is 0.27 to 0.32 kN, as in the case of nails 11 and 12, assuming the nail length is 50 mm. Now, the height (vertical length) of the surface material 26 is 2700 mm, the same as the surface material 6, and the lengths of the strip plates 27 and 28 are 1000 mm. If the fixing force used to fix the left and right ends of panel 26 to the right half of left vertical frame 21 and the left half of right vertical frame 22 using wood screws 29 and 30 is expressed as the sum of the pull-out strengths of each wood screw, then if the spacing (pitch) of wood screws 29 and 30 is 100 mm, the fixing force used to fix the left end of panel 26 to the right half of left vertical frame 21 using wood screw 29 will be the same as for wood screw 9, Fx1 = 7.5 to 30 kN, and the fixing force used to fix the right end of panel 26 to the left half of right vertical frame 22 using wood screw 30 will also be Fx1. In contrast, if the fixing force used by nails 31 and 32 to fix the left and right ends of panel 26 to the right half of left vertical frame 21 and the left half of right vertical frame 22 is expressed as the sum of the pull-out strengths of each nail 31 and 32, if nails 31 and 32 are driven only into the parts of panel 26 where strip plates 27 and 28 are not attached, and the spacing (pitch) between nails 31 and 32 is 100 mm, the fixing force used by nail 31 to fix the left end of panel 26 to the right half of left vertical frame 21 will be Fx2 = 4.32 to 5.12 kN, the same as in the case of nail 11, and the fixing force used by nail 32 to fix the right end of panel 26 to the left half of right vertical frame 22 will also be Fx2. Furthermore, if nails 31 and 32 are driven into the part of the panel 26 where the strip plates 27 and 28 are attached, and the spacing (pitch) between the nails 31 and 32 is 150 mm, the fixing force with which the nail 31 fixes the left end of the panel 26 to the right half of the left vertical frame 21 will be F2' = 4.86 to 5.76 kN, the same as in the case of nail 11, and the fixing force with which the nail 32 fixes the right end of the panel 26 to the left half of the right vertical frame 22 will also be Fx2'. As a result, the fixing force Fx1 used to fix the left and right ends of the panel 26 to the right half of the left vertical frame 21 and the left half of the right vertical frame 22 using the wood screws 29 and 30 is 1.4 to 5.8 times the maximum value of the fixing force Fx2 used to fix the left and right ends of the panel 26 to the right half of the left vertical frame 21 and the left half of the right vertical frame 22 using the nails 31 and 32, and is 1.3 to 5.2 times the maximum value of Fx2'.
[0039] Here, the height (length in the vertical direction) of the face material 26 is set to 2700 mm, the same as above, and the lengths of the band-shaped plates 27 and 28 are set to be longer, 1500 mm. If the spacing (pitch) between the wood screws 29 and 30 is 100 mm, the fixing force used by the wood screw 29 to fix the left end of the panel 26 to the right half of the left vertical frame 21 is Fy1 = 11.2 to 45 kN, the same as in the case of the wood screw 9, and the fixing force used by the wood screw 30 to fix the right end of the panel 26 to the left half of the right vertical frame 22 is also Fy1. In contrast, if nails 31 and 32 are driven only into the parts of the panel 26 where the strip plates 27 and 28 are not attached, and the spacing (pitch) between nails 31 and 32 is 100 mm, the fixing force with which nail 31 fixes the left end of panel 26 to the right half of the left vertical frame 21 will be Fy2 = 3.24 to 3.84 kN, the same as in the case of nail 11, and the fixing force with which nail 22 fixes the right end of panel 26 to the left half of the right vertical frame 22 will also be Fy2. Furthermore, if nails 31 and 32 are also driven into the part of the panel 26 to which the strip plates 27 and 28 are attached, and the spacing (pitch) between the nails 31 and 32 is 150 mm, the fixing force with which the nail 31 fixes the left end of the panel 26 to the right of the left vertical frame 21 will be the same as the above fixing force Fx2' = 4.86 to 5.76 kN, and the fixing force with which the nail 32 fixes the right end of the panel 26 to the left half of the right vertical frame 22 will also be Fy2'. As a result, the fixing force Fy1 used to fix the left and right ends of the panel 26 to the right half of the left vertical frame 21 and the left half of the right vertical frame 22 using the wood screws 29 and 30 is 1.9 to 7.8 times the fixing force Fy2 and Fy2' used to fix the left and right ends of the panel 26 to the right half of the left vertical frame 21 and the left half of the right vertical frame 22 using the nails 31 and 32.
[0040] [Function of framed shear walls] When strong external forces are repeatedly applied from multiple directions to the frame panel shear wall 20, the upper frame 24 moves relative to the lower frame 25 because the lower ends of the left vertical frame 21, right vertical frame 22, and studs 23 are fixed to a lower frame that is fixed to a foundation or the like, and excessive forces act to pull the left and right ends of the panel 26 away from the left vertical frame 21 and right vertical frame 22, and strong forces act to pull out the wood screws 29, 30 from the left vertical frame 21 and right vertical frame 22. In this case, since the wood screws 29, 30 have a large pull-out resistance, the body portions 29b, 30b of the wood screws 29, 30 are not pulled out of the left vertical frame 21 and the right vertical frame 22, and remain screwed into the left vertical frame 21 and the right vertical frame 22. As in the case where the pillars 2, 3 are fixed with wood screws 9, 10 via strip-shaped plates 7, 8, strip-shaped plates 27, 28 are interposed between the heads 29a, 30a of the wood screws 29, 30 and the left and right ends of the panel 26, so that the left and right ends of the panel 26 do not press against the heads 29a, 30a of the wood screws 29, 30 with excessive force, and the heads 29a, 30a do not bite into the left and right ends of the panel 26, preventing punching-out, in which the left and right ends of the panel 26 separate from the left vertical frame 21 and right vertical frame 22. [Industrial Applicability]
[0041] The panel mounting structure and panel shear wall of the present invention can sufficiently prevent punching-out, in which the panel separates from the column, etc., by the fixing members biting into the panel, even if a strong external force repeatedly acts on the panel shear wall and excessive force repeatedly acts on the fixing parts between the panel and the column, etc., trying to pull the panel away from the column, etc., and can be used in buildings with wooden frame structures or wooden frame wall structures. [Explanation of symbols]
[0042] 1 Frame bearing wall 2, 3 pillars 2hu, 2hs, 3hu, 3hs Tenon 2k, 3k notch 4 beams 4a, 4b mortise holes 5. Foundation 5a, 5b mortise holes 6. Surface material 7, 8 Strip plates 7a, 8a through hole 9, 10 Wood screws 9a, 10a head 9b, 10a Torso 11, 12, 13 nails 11a, 12a, 13a head 11b, 12a, 13b Torso 20 Frame-framed shear walls 21 Left vertical frame 22 Right vertical frame 23 Stud (vertical frame) 24 Upper frame 25 Bottom frame 26 Surface material 27, 28 Strip plates 27a, 28a through hole 29, 30 Wood screws 29a, 30a head, 29b, 30a Torso 31, 32, 33, 34, 35 nails 31a, 32a, 33a, 34a, 35a Head 31b, 32b, 33b, 34b, 35b Torso
Claims
1. A mounting structure for a panel in a panel bearing wall of a wooden frame building formed by attaching a panel to a framework formed by a left column, a right column adjacent to the left column, an upper horizontal member, and a lower horizontal member, The left and right ends of the face material are temporarily fixed to the left column and the right column with a plurality of nails that penetrate the face material, and The left and right ends of the face material are firmly fixed to the left column and the right column with a plurality of linear screw members that penetrate the face material, When an external force that tries to pull the face material away from the left-side column and the right-side column acts on the bearing wall, even if excessive force repeatedly acts on the plurality of linear screw members in each of the left-side column and the right-side column, the plurality of linear screw members bite into or sink into the face material, preventing the face material from separating from the left-side column and / or the right-side column. A vertically long strip-shaped plate through which the plurality of linear screw members pass is interposed between the heads of the plurality of linear screw members and the face material, A mounting structure for panel materials in panel-bearing walls, characterized in that the fixing force with which the plurality of linear screw members firmly fix the left and right ends of the panel material to the left-side column and the right-side column is 1.3 to 11.7 times the fixing force with which the plurality of nails temporarily fix the left and right ends of the panel material to the left-side column and the right-side column.
2. The left-hand column and the right-hand column have cutouts formed in the areas where the panel overlaps, and the left and right ends of the panel overlap the cutouts, preventing the panel from shifting left and right relative to the left-hand column and the right-hand column.
3. 3. The mounting structure for a panel in a panel bearing wall according to claim 1 or claim 2, wherein the band-shaped plate is made of a steel plate having a thickness of 0.7 mm to 4.0 mm.
4. A mounting structure for a face material in a face material bearing wall of a wooden frame wall structure building formed by attaching a face material to a frame having an upper frame, a lower frame, and a plurality of vertical frames assembled between the upper frame and the lower frame, The left and right ends of the face material are temporarily fixed to the left and right vertical frames of the plurality of vertical frames with a plurality of nails that penetrate the face material, and The left and right ends of the face material are firmly fixed to the left and right vertical frames with a plurality of linear screw members that penetrate the face material, When an external force acts on the panel shear wall to pull the left and right ends of the panel away from the vertical frames at the left and right ends, even if excessive force is repeatedly applied to the multiple linear screw members at the vertical frames at the left and right ends, the multiple linear screw members will bite into or sink into the panel, preventing the left and right ends of the panel from separating from the vertical frames at the left and / or right ends.A vertically long strip-shaped plate through which the multiple linear screw members pass is interposed between the heads of the multiple linear screw members and the panel, A mounting structure for panel materials in panel-bearing walls, characterized in that the fixing force with which the plurality of linear screw members firmly fix the left and right ends of the panel material to the left-side column and the right-side column is 1.3 to 11.7 times the fixing force with which the plurality of nails temporarily fix the left and right ends of the panel material to the left-side column and the right-side column.
5. A wooden frame structure building with a shear wall formed by attaching a surface material to a framework formed by a left-side column, a right-side column adjacent to the left-side column, an upper horizontal member, and a lower horizontal member, The left and right ends of the face material are temporarily fixed to the left column and the right column with a plurality of nails that penetrate the face material, and The left and right ends of the face material are firmly fixed to the left column and the right column with a plurality of linear screw members that penetrate the face material, When an external force that tries to pull the face material away from the left-side column and the right-side column acts on the bearing wall, even if excessive force repeatedly acts on the plurality of linear screw members in each of the left-side column and the right-side column, the plurality of linear screw members bite into or sink into the face material, preventing the face material from separating from the left-side column and / or the right-side column. A vertically long strip-shaped plate through which the plurality of linear screw members pass is interposed between the heads of the plurality of linear screw members and the face material, A panel shear wall characterized in that the fixing force with which the plurality of linear screw members firmly fix the left and right ends of the panel to the left column and the right column is 1.3 to 11.7 times the fixing force with which the plurality of nails temporarily fix the left and right ends of the panel to the left column and the right column.
6. A wooden frame wall structure is a structural wall of a building that has a surface material bearing wall formed by attaching a surface material to a frame that has an upper frame, a lower frame, and a plurality of vertical frames assembled between the upper frame and the lower frame. The left and right ends of the face material are temporarily fixed to the left and right vertical frames of the plurality of vertical frames with a plurality of nails that penetrate the face material, and The left and right ends of the face material are firmly fixed to the left and right vertical frames with a plurality of linear screw members that penetrate the face material, When an external force acts on the panel shear wall to pull the left and right ends of the panel away from the vertical frames at the left and right ends, even if excessive force is repeatedly applied to the multiple linear screw members at the vertical frames at the left and right ends, the multiple linear screw members will bite into or sink into the panel, preventing the left and right ends of the panel from separating from the vertical frames at the left and / or right ends.A vertically long strip-shaped plate through which the multiple linear screw members pass is interposed between the heads of the multiple linear screw members and the panel, A panel shear wall characterized in that the fixing force with which the plurality of linear screw members firmly fix the left and right ends of the panel to the left column and the right column is 1.3 to 11.7 times the fixing force with which the plurality of nails temporarily fix the left and right ends of the panel to the left column and the right column.
Citation Information
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