Building Structure
The metal nail plate and diagonal brace member configuration in wooden structures addresses the issue of loose bracing by maintaining tension direction orthogonality, enabling larger spacing and improved structural integrity with soft wood.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- PORTA PARK INC
- Filing Date
- 2025-11-25
- Publication Date
- 2026-06-18
Smart Images
Figure 0007876050000001_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to architectural structure .
Background Art
[0002] In recent years, in order to achieve a decarbonized society, there has been an active movement to construct medium and large-sized buildings using wood adsorbed with carbon dioxide. When achieving a larger span in such medium and large-sized wooden buildings, a frame such as beams and girders with a large section modulus is required. Therefore, for example, a frame is created using plywood such as LVL (Laminated Veneer Lumber) and CLT (Cross Laminated Timber) (see, for example, Patent Documents 1 and 2).
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Patent Document 2
Summary of the Invention
Problems to be Solved by the Invention
[0004] However, since such plywood uses an adhesive, even if it has sufficient strength as a whole, the adhesive may deteriorate quickly, and the service life has never been long. In addition, plywood cannot be said to be good from the viewpoints of recyclability and resource saving when using an adhesive. In particular, in some countries, it may be difficult to obtain high-strength wood for plywood. In this case, it becomes necessary to rely on imports, which is not more resource-saving from the viewpoint of transportation energy.
[0005] Therefore, the applicant is considering using solid wood, for example, cut directly from relatively soft trees, as the structural frame, without using plywood as described above. However, this solid wood does not have as large a section modulus as plywood. For this reason, structural plywood or the like could be used as the facing material attached to the frame to compensate for this.
[0006] However, in this case, plywood would ultimately have to be used, and it would become impossible to use air conditioning panels or other materials that cannot be expected to bear sufficient strength as facing materials. Therefore, the applicant is considering using bracing materials. By using bracing materials, it is possible to reduce the strength burden on the facing materials and increase the freedom of choice in the facing materials used.
[0007] Based on the above, the applicant is aiming to realize a wooden building that uses solid wood cut from relatively soft trees for the structural frame, and also increases the freedom of the surface materials by using bracing materials.
[0008] However, when using bracing materials with solid wood as described above, it becomes necessary to prevent the bracing materials from coming loose from the solid wood. As the length of the bracing material increases, the tension generated in the bracing material also increases. Considering the tension generated in the bracing material, structural elements such as beams and girders made of relatively soft solid wood need to have short spacings between them to prevent the bracing materials from coming loose, for example, spacings of about 1.8m.
[0009] In large-span steel-frame buildings, the spacing between structural members is 6m x 12m, for example, which is significantly fewer than the approximately 1.8m spacing mentioned above. In such steel-frame buildings, bracing members are attached to the steel frame, so even if the tension generated in the bracing members becomes large, the steel frame can withstand the large tension.
[0010] Here, the applicant has been researching how to widen the spacing between structural members by using long bracing members, similar to steel-framed buildings, even when using solid wood cut from relatively soft trees for the structural frame. However, as mentioned above, when long bracing members are used, the solid wood cannot withstand the tension, and the bracing members tend to come loose. Therefore, a structure is desired in which the bracing members do not come loose even when solid wood is used for the structural frame.
[0011] It should be noted that while the above discussion focused on the ceiling, the same problems can occur not only in the ceiling but also in the walls and, in the case of a floor below, in the floor. Furthermore, the above problems are not limited to cases where solid wood cut from relatively soft trees is used for the structure, but are also common when other low-strength soft materials are used for the structure.
[0012] One of the purposes of this disclosure is to reduce the possibility of bracing becoming detached, even when using soft materials in the structural frame and using longer bracing members. architectural structure The objective is to provide. [Means for solving the problem]
[0013] A building structure relating to one aspect of this disclosure has a plate portion and a plurality of piercing claws protruding from one surface of the plate portion, such that when a plurality of elongated members are in contact with each other, the contact portion spans across the plurality of elongated members. 1 component The multiple piercing claws of the metal nail plate pierce the metal, The metal nail plate of the said one component The building structure comprising the aforementioned plurality of elongated members connected, wherein a brace member is provided, which is a reinforcing member, arranged diagonally to a rectangular frame comprising the plurality of elongated members, and the nail plate is, Within the thickness range of the plurality of elongated members, a side wall extends in contact with or in close proximity to the side surface of the plurality of elongated members that intersects with the surface into which the plurality of piercing claws penetrate, and is provided at the tip of the side wall and formed at a position offset from the plate portion in the direction of penetration of the plurality of piercing claws. , mounting portion having an opening formed for attaching the brace material and, It has, The aforementioned The direction of penetration and the direction of extension of the brace material attached to the mounting portion are perpendicular to each other. [Effects of the Invention]
[0015] According to one aspect of the present disclosure, even when a soft material is adopted for the housing and a longer brace member is used, it is possible to reduce the possibility of the brace member coming off. architectural structure can be provided.
Brief Description of the Drawings
[0016] [Figure 1] FIG. 1 is a perspective view showing a building structure according to an embodiment of the present disclosure. [Figure 2] FIG. 2 is an enlarged side view of the first framework shown in FIG. 1. [Figure 3] FIG. 3 is a perspective view of the truss plate shown in FIG. 2. [Figure 4] FIG. 4 is a top view showing a part of the building structure shown in FIG. 1. [Figure 5] FIG. 5 is a top perspective view of the nail plate shown in FIGS. 1 and 4 that connects the frameworks in an L shape. [Figure 6] FIG. 6 is a bottom perspective view of the nail plate shown in FIGS. 1 and 4 that connects the frameworks in an L shape. [Figure 7] FIG. 7 is an enlarged plan view showing the brace member shown in FIGS. 1 and 4. [Figure 8] FIG. 8 is a top perspective view of the nail plate shown in FIGS. 1 and 4 that connects the frameworks in a T shape. [Figure 9] FIG. 9 is a top perspective view of the nail plate shown in FIGS. 1 and 4 that connects the frameworks in an X shape. [Figure 10] FIG. 10 is a schematic configuration diagram for explaining the effect of the percussion beam, where (a) shows the percussion beam and (b) shows the nail plate.
Modes for Carrying Out the Invention
[0017] The present disclosure will be described below in accordance with preferred embodiments. While the present disclosure will be described using the following embodiments as an example of use in a ceiling, it is not limited to this and can be modified as appropriate without departing from the spirit of the disclosure. Furthermore, in the embodiments described below, some illustrations and descriptions of certain components are omitted. It goes without saying that, regarding the details of the omitted technologies, publicly known or well-known technologies are applied as appropriate, to the extent that they do not contradict the content described below.
[0018] Figure 1 is a perspective view showing a building structure according to an embodiment of the present disclosure. The building structure 1 shown in Figure 1 is provided with a plurality of facing materials 20 on a frame (structure) 10 that is rectangular when viewed from above. The frame 10 is constructed by connecting a first frame 11 that extends in a first direction and a second frame 12 that extends in a second direction perpendicular to the first direction. The facing materials 20 are attached to one side (for example, the ceiling side) of the frame 10, which is rectangular in shape when the first frame 11 and the second frame 12 are connected. The facing materials 20 are, for example, roofing materials, wall materials, and flooring materials, and a wide variety of materials such as sandwich panels and air conditioning panels can be used.
[0019] The first frame 11 and the second frame 12 are truss structures with long members connected to each other. Figure 2 is an enlarged side view of the first frame 11 shown in Figure 1. Note that the second frame 12 is the same as the first frame 11 shown in Figure 2, so its explanation in Figure 2 is omitted.
[0020] As shown in Figure 2, the first frame 11 is configured as a truss structure comprising a plurality of long members 13, namely upper chords 13a, lower chords 13b, vertical members 13c, and diagonal members 13d. In this embodiment, these upper chords 13a, lower chords 13b, vertical members 13c, and diagonal members 13d are made of, for example, solid wood of relatively soft trees. The upper chord 13a is the upper member of the truss structure, and the lower chord 13b is the lower member of the truss structure. The vertical member 13c is a member positioned vertically between the upper chord 13a and the lower chord 13b. The diagonal member 13d is a member positioned diagonally in the rectangular section formed by the upper chord 13a, the lower chord 13b, and the vertical member 13c. Such a truss structure functions to maintain the shape of the rectangular section even when a force is applied in the direction of arrow A shown in Figure 2.
[0021] Furthermore, the long members 13 are not limited to those made of solid wood from soft trees. Also, the first framework 11 is not limited to the truss structure shown in Figure 2, but may be a truss structure with an inclined section, for example, or may not be a truss structure at all if possible.
[0022] Here, as shown in Figure 2, each elongated member 13 is in contact with each other, and a truss plate 14 is attached to the contact portion so as to span across each elongated member 13, thereby forming a truss structure. Figure 3 is a perspective view of the truss plate 14 shown in Figure 2. Note that the truss plate 14 is not shown in Figure 1. The truss plate 14 is made of metal and, as shown in Figure 3, comprises a flat plate portion 14a and a plurality of piercing claws 14b.
[0023] Multiple piercing claws 14b protrude from one surface of the flat plate portion 14a. Each piercing claw 14b has a pointed tip and can pierce across multiple long members 13. In this embodiment, the multiple piercing claws 14b are formed in an upright position by cutting out a portion of the plate portion 14a in a cantilevered manner.
[0024] As shown in Figure 2, each long member 13 is connected by the truss plate 14 being inserted into its respective connection point. In this embodiment, the first frame 11 forms a truss structure with the truss plate 14, but it is not limited to this, and may be connected to form a truss structure with other connecting members such as bolts.
[0025] Figure 4 is a top view showing a part of the building structure 1 shown in Figure 1. As shown in Figures 1 and 4, the building structure 1 according to this embodiment further includes a nail plate 15 and a brace member 16. The frame 10 is constructed by connecting a first frame 11 and a second frame 12 in a rectangular shape when viewed from above. The first frame 11 and the second frame 12 are connected at a contact point where they are in contact in a rectangular shape, by attaching a metal nail plate 15 from the side of the facing material 20 shown in Figure 1 so as to span across the first frame 11 and the second frame 12.
[0026] Figure 5 is a top perspective view of the nail plate 15 shown in Figures 1 and 4, which connects the frames 11 and 12 in an L-shape, and Figure 6 is a bottom perspective view of the nail plate 15 shown in Figures 1 and 4, which connects the frames 11 and 12 in an L-shape.
[0027] As shown in Figures 5 and 6, the nail plate 15 comprises a plate portion 15a, a plurality of piercing claws 15b, a side wall 15c, and a mounting portion 15d. The plate portion 15a is a flat plate material. In the example of the nail plate 15 shown in Figures 5 and 6, the frame 11 and 12 are connected in an L-shape, so the plate portion 15a is also L-shaped.
[0028] The multiple piercing claws 15b are configured similarly to the multiple piercing claws 14b of the truss plate 14. That is, the multiple piercing claws 15b protrude from one surface of the plate portion 15a, have pointed tips, and are capable of piercing the long member 13 (specifically, the upper chord member 13a or vertical member 13c shown in Figure 2). In this embodiment, the multiple piercing claws 15b are formed in an upright position by cutting out a part of the plate portion 15a in a cantilevered manner.
[0029] The side wall 15c is a portion that hangs down from the plate portion 15a along the side surface of the upper chord member 13a, which is a long member 13 (the surface that intersects with the upper surface into which the multiple piercing claws 15b are pierced). Therefore, the side wall 15c extends in contact with or close proximity to the side surface of the upper chord member 13a. The side wall 15c hangs down to a length that does not exceed the thickness of the upper chord member 13a.
[0030] The mounting portion 15d is a flat plate-shaped part in which an opening H1 is formed for attaching the brace material 16 (see Figures 1 and 4). This mounting portion 15d has a plate material that extends parallel to the plate portion 15a, for example (for example, with an angle difference of 10° or less between the two), and the opening H1 is formed in the center of the plate material. In the example shown in Figures 5 and 6, the nail plate 15 connects the frameworks 11 and 12 (see Figures 1 and 2) in an L-shape, so the mounting portion 15d is provided on the inside of the L-shape.
[0031] Here, the mounting portion 15d is provided at the tip of the side wall 15c, which is located on the inside of the L-shape. As a result, the mounting portion 15d is positioned offset from the plate portion 15a in the direction in which the multiple piercing claws 15b pierce, within a range that does not exceed the thickness of the upper chord member 13a.
[0032] Figure 7 is an enlarged plan view showing the brace member 16 shown in Figures 1 and 4. The brace member 16 shown in Figures 1 and 4 is a reinforcing member positioned diagonally to a rectangular frame that includes the framework 11, 12 (see Figures 1 and 2). This brace member 16 is also made of metal, similar to the nail plate 15. The brace member 16 is composed of plate portions 16a at both ends and rod-shaped portions 16b that connect the plate portions 16a. Openings H2 are formed in the plate portions 16a at both ends. The openings H2 in the plate portions 16a coincide with the openings H1 in the mounting portion 15d (see Figures 5 and 6), and the brace member 16 is attached to the mounting portion 15d by fastening them together with bolts or other components.
[0033] Figure 8 is a top perspective view of the nail plate 15 shown in Figures 1 and 4, which connects the frames 11 and 12 in a T-shape, and Figure 9 is a top perspective view of the nail plate 15 shown in Figures 1 and 4, which connects the frames 11 and 12 in an X-shape. The bottom perspective view is the same as in Figure 6, so its explanation is omitted.
[0034] As shown in Figure 8, the nail plate 15 that connects the frames 11 and 12 (see Figures 1 and 2) in a T-shape has two mounting portions 15d. In other words, the nail plate 15 shown in Figure 8 has a structure that is like two nail plates 15 that connect the frames 11 and 12 in an L-shape combined, with mounting portions 15d provided on the inner parts of each.
[0035] Furthermore, as shown in Figure 9, the nail plate 15 that connects the frames 11 and 12 (see Figures 1 and 2) in an X shape has four mounting points 15d (one of which is not visible in Figure 9). In other words, the nail plate 15 shown in Figure 9 has a structure that is like two nail plates 15 that connect the frames 11 and 12 in a T shape combined together, with mounting points 15d provided on the inner parts of each.
[0036] Then, as a result of attaching the brace material 16 (see Figures 1 and 4) to each mounting portion 15d, the brace material 16 is arranged in the diagonal direction of each rectangular frame portion, as shown in Figure 4. In this configuration, the nail plate 15 has an orthogonal relationship (for example, 80° to 100°) between the direction of penetration of the multiple piercing claws 15b and the direction of extension of the brace material 16 (and furthermore, the flat plate-shaped mounting portion 15d). Therefore, the direction in which tension is applied to the brace material 16 and the direction of penetration of the multiple piercing claws 15b are orthogonal, and the nail plate 15 is configured not to come off easily.
[0037] Refer to Figure 1 again. As shown in Figure 1, in this embodiment, the nail plate 15 functions to connect a plurality of upper chord members 13a (see Figure 2). In the example shown in Figure 1, a facing material 20 is provided on the upper chord members 13a. The facing material 20 is fixed to the structure 10 at appropriate locations, for example, by fastener members. Therefore, the facing material 20 is laid in contact with or in close proximity to the opposite side of the plate portion 15a (see Figure 5) of the nail plate 15 on which a plurality of piercing claws 15b (see Figure 6) are formed. As a result, the facing material 20 functions as a member that prevents the nail plate 15 from coming loose. Note that "close proximity" means a state in which the distance between them is less than the length of the plurality of piercing claws 15b.
[0038] Here, the nail plate 15 also functions as a bracing beam. Figure 10 is a schematic diagram illustrating the bracing beam effect, where (a) shows the bracing beam and (b) shows the nail plate 15. As shown in Figure 10(a), the bracing beam is provided to maintain the orthogonal relationship between the long members 13 in the horizontal plane. For example, as shown in Figure 10(a), the bracing beam is provided across points P.
[0039] Here, as shown in Figure 10(b), the nail plate 15 is installed so as to include the point P to which the diagonal bracing beam is connected. In this way, the nail plate 15 also has the function of fixing the points P together, and therefore functions to exert a diagonal bracing beam effect. In particular, since the nail plate 15 originally has a certain area of about the size of an A5 sheet of paper, the piercing points of the multiple piercing claws 15b (see Figure 6) are inevitably spaced apart in the long member 13, and an effect similar to that of a diagonal bracing beam can be expected.
[0040] Next, the operation of the building structure 1 according to this embodiment will be explained. First, in this embodiment, the frame 10 is composed of a first frame 11 and a second frame 12. In particular, the first frame 11 and the second frame 12 have a truss structure. Therefore, even if relatively soft solid wood is used for each frame 11 and 12, a certain level of strength is maintained. Furthermore, by attaching bracing members 16 to such frames 11 and 12, it becomes possible to make one section (one rectangle) the same size as a steel frame, for example, 6m x 12m.
[0041] However, in this case, the brace member 16 may be subjected to tension exceeding, for example, 1 ton. Therefore, even if the brace member 16 is directly attached to the frame 11, 12, since the frame 11, 12 is made of solid wood or the like, it cannot support the brace member 16 and the brace member 16 is likely to come off. In other words, even if the brace member 16 is bolted directly to the solid wood or the like, the solid wood or the like may not be able to withstand the tension, causing the bolted part to become brittle and collapse, and the bolt to come off.
[0042] In contrast, the building structure 1 according to this embodiment has the metal nail plate 15 described above, and the brace member 16 is attached to the mounting portion 15d of the nail plate 15. As a result, the brace member 16 is firmly fixed by the metal nail plate 15. That is, the nail plate 15 is used to attach the brace member 16 in a manner that can withstand a tension greater than the tension that the brace member 16 can withstand if it were directly attached to the long member 13. In this way, the brace member 16 is firmly fixed by using the nail plate 15 according to this embodiment.
[0043] In particular, the direction in which the multiple piercing claws 15b penetrate the nail plate 15 is perpendicular to the extension direction of the brace material 16, i.e., the direction in which tension is applied. Therefore, the tension applied to the brace material 16 does not act in a direction that would cause the multiple piercing claws 15b to easily come loose, and the nail plate 15 does not easily come off even when the brace material 16 is attached.
[0044] Furthermore, since the surface material 20 is in contact with or close to the opposite side of the plate portion 15a on which multiple piercing claws 15b are provided, the surface material 20 also prevents the nail plate 15 from coming loose.
[0045] Based on the above, the building structure 1 according to this embodiment can form a single section of the same size as a steel frame, even while using soft members such as relatively soft solid wood as long members 13.
[0046] In addition, since the nail plate 15 has a side wall 15c, play in the nail plate 15 is suppressed. If play occurs in the nail plate 15, the holes where the multiple piercing claws 15b are inserted will gradually widen, which could eventually lead to the nail plate 15 coming out. However, since the play is suppressed by the side wall 15c, this concern is eliminated. It is preferable that the side wall 15c is close to or in contact with the side surface of the upper chord member 13a by a few millimeters (for example, 3 mm) or less.
[0047] In addition, the mounting portion 15d of the nail plate 15 is positioned offset from the plate portion 15a in the direction of penetration of the multiple piercing claws 15b, within a range that does not exceed the thickness of the upper chord member 13a. Therefore, it is possible to make it difficult to apply a rotational force to the upper chord member 13a due to the tension of the brace material 16. In particular, when the surface material 20 is in contact with or close to the plate portion 15a, it is also possible to secure mounting space for the brace material 16.
[0048] Thus, according to the building structure 1 of this embodiment, the nail plate 15 has an attachment portion 15d in which an opening H1 for attaching the brace member 16 is formed. For this reason, the brace member 16 is attached to the metal nail plate 15, rather than to the relatively soft, elongated member 13. As a result, the brace member 16 can be firmly fixed to the nail plate 15, just as it would be if the brace member 16 were attached to a steel frame. Furthermore, the piercing direction of the multiple piercing claws 15b and the extending direction of the brace member 16 attached to the attachment portion 15d are orthogonal to each other. Therefore, the piercing direction of the multiple piercing claws 15b and the direction in which tension is applied to the brace member 16 are orthogonal to each other, and the possibility of the nail plate 15 coming off the elongated member 13 due to the tension applied to the brace member 16 is reduced. Accordingly, even when a soft material is used in the building structure 10 and a longer brace member 16 is used, it is possible to provide a building structure 1 that can reduce the possibility of the brace member 16 coming off.
[0049] Furthermore, since the plate portion 15a is equipped with a surface material 20 that is in contact with or in close proximity to the opposite side of one side on which multiple piercing claws 15b are formed, the surface material 20 can be used as a retaining member for the nail plate 15. Therefore, the possibility of the nail plate 15 coming off the long member 13 can be further reduced.
[0050] Furthermore, the nail plate 15 has side walls 15c that extend in contact with or in close proximity to the side surface of the multiple elongated members 13 into which the multiple piercing claws 15b penetrate. This suppresses play, which is movement of the nail plate 15 in the shear direction. This reduces the possibility that the play of the nail plate 15 could cause the holes formed by the penetration of the multiple piercing claws 15b to widen, making the nail plate 15 more likely to come off.
[0051] Furthermore, the mounting portion 15d is formed within the thickness range of the multiple elongated members 13 connected by the nail plate 15, at a position offset in the piercing direction from the plate portion 15a. As a result, the mounting portion 15d is located closer to the center in the thickness direction of the multiple elongated members 13, making it difficult to apply rotational force to the elongated members 13 due to the tension of the brace material 16. In addition, if the facing material 20 is laid in contact with or close to the plate portion 15a, space for mounting the brace material 16 can be secured.
[0052] Furthermore, the nail plate 15 according to this embodiment has a mounting portion 15d in which an opening H1 for attaching the brace material 16 is formed. Therefore, the brace material 16 is attached to the metal nail plate 15, rather than to the relatively soft elongated member 13. As a result, the brace material 16 can be firmly fixed to the nail plate 15, similar to when the brace material 16 is attached to a steel frame. In addition, the piercing direction of the multiple piercing claws 15b and the flat plate-shaped mounting portion 15d are in an orthogonal relationship. Since the brace material 16 is attached to the mounting portion 15d, when the above orthogonal relationship is established, the piercing direction of the multiple piercing claws 15b and the extending direction of the brace material 16 are also in an orthogonal relationship. Therefore, the piercing direction of the multiple piercing claws 15b and the direction in which tension is applied to the brace material 16 are in an orthogonal relationship, and the possibility of the nail plate 15 coming off the elongated member 13 due to the tension applied to the brace material 16 is also reduced. Therefore, even when a soft material is used for the frame 10 and a longer brace material 16 is used, it is possible to provide a nail plate 15 that can reduce the possibility of the brace material 16 coming off.
[0053] Although the present disclosure has been described above based on embodiments, the present disclosure is not limited to the above embodiments, and modifications may be made, and publicly known or well-known technologies may be combined to the extent possible, without departing from the spirit of the present disclosure.
[0054] For example, although the above explanation assumes a ceiling, a similar structure may be adopted for walls or floors. In addition, the mounting portion 15d of the nail plate 15 is provided at a corner when viewed from the direction normal to the plane of the plate portion 15a, but it is not limited to this and may be provided at other locations such as the center.
[0055] In addition, since adopting the building structure 1 according to this embodiment can contribute to making each section larger, in buildings where the size of each section is not required to be at the same level as that of a steel frame, the frameworks 11 and 12 do not have to be truss structures.
[0056] Furthermore, the truss structures of frames 11 and 12 may have inclined sections that slope with respect to the horizontal plane, and materials other than solid wood may be used as long as the section modulus is not greater than that of steel.
[0057] In addition, although the nail plate 15 is inserted into the framework 11 and 12 from the side of the facing material 20, it is not limited to this and may be inserted from the opposite side of the facing material 20. In this case, when multiple piercing claws 15b are facing upward, a member to support the nail plate 15 from below may be provided. [Explanation of Symbols]
[0058] 1: Architectural structure 10:Structure (frame body) 13: Long member 15: Nail Plate 15a: Plate section 15b: Multiple piercing claws 15c: side wall 15d: Mounting part 16: Brace material 20: Surface material H1:Open hole
Claims
1. In a building structure in which multiple long members are connected by a metal nail plate, the nail plate is a single component having a plate portion and multiple piercing claws protruding from one surface of the plate portion, and the multiple piercing claws of the nail plate are pierced into the contact portion of the multiple long members so as to span across the multiple long members, The rectangular frame, which is composed of the aforementioned plurality of elongated members, is equipped with brace members that are arranged diagonally to the rectangular frame, The aforementioned nail plate is Within the thickness range of the plurality of elongated members, a side wall extends in contact with or in close proximity to the side surface of the plurality of elongated members that intersects with the surface into which the plurality of piercing claws penetrate, It has a mounting portion provided at the tip of the side wall and formed at a position offset from the plate portion in the direction of penetration of the plurality of piercing claws, and having an opening formed therein for attaching the brace material, The aforementioned piercing direction and the extending direction of the brace material attached to the mounting portion are perpendicular to each other. architectural structure.
2. The nail plate further comprises a surface material laid in contact with or in close proximity to the opposite side of the plate portion of the nail plate on which the plurality of piercing claws are formed. The building structure according to claim 1.