Building Structure

Abstract

The present invention provides a building structure and nail plate that enable more secure fastening of the facing material to the building structure, even when soft materials are used in the structure. [Solution] The building structure comprises a plurality of elongated members 13, a metal nail plate 16 having a plate portion 16a and a plurality of piercing claws, the plurality of piercing claws piercing into at least one of the plurality of elongated members 13, a plurality of facing materials provided on the frame composed of the plurality of elongated members 13, and a fastener member provided in a penetrating state through the plurality of facing materials. The nail plate 16 has a second plate portion 16c extending from the plate portion 16a, and the fastener member pierces the second plate portion 16c and fastens the facing material to at least one of the plurality of elongated members 13 via the second plate portion 16c. The exit direction A1 of the fastener member and the exit direction A2 of the plurality of piercing claws are configured to form an angle of 80° to 180°.

Description

【Technical Field】 【0001】 This 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 that has adsorbed carbon dioxide. When achieving a larger span in such medium and large-sized wooden buildings, a structure such as beams and girders with a large section modulus is required. Therefore, the structure 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】 Japanese Patent Application Laid-Open No. 2022-60907 【Patent Document 2】 Japanese Patent Application Laid-Open No. 2021-177055 【Summary of the Invention】 【Problems to be Solved by the Invention】 【0004】 However, since such plywood uses an adhesive, even if the wood itself has sufficient strength, etc., the adhesive may deteriorate quickly, and the service life has never been long. Also, plywood, from the viewpoints of recyclability and resource conservation when using an adhesive, was never considered good. In particular, in some countries, it may be difficult to obtain high-strength wood for use in 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, for example, solid wood cut directly from relatively soft trees as the structural frame, without using plywood as described above. 【0006】 Furthermore, the facing materials attached to the structure may include air conditioning panels and sandwich panels. However, with air conditioning panels and sandwich panels, fasteners cannot be freely inserted, and can only be inserted in limited locations such as near the edges of the panel. As a result, the number of fasteners used to fasten the panel tends to be small. In addition, because the fasteners are inserted into solid wood, the fasteners tend to come loose easily due to the softness of the material being fastened. 【0007】 Due to these circumstances, if relatively soft solid wood was used for the structural frame, and certain surface materials such as air conditioning panels or sandwich panels were used, there was a possibility that the surface materials themselves could come off due to the effects of wind. 【0008】 It should be noted that while the above discussion focused on the issue of surface materials installed on ceilings, this problem is not limited to ceilings; it also occurs in walls, floors, and other areas. Furthermore, the above problem is common not only when using solid wood cut from relatively soft trees for the structural frame, but also when using other low-strength soft materials. 【0009】 The purpose of this disclosure is to enable the fixing of the facing material to the structural frame more firmly, even when a soft material is used in the structural frame. architectural structure The objective is to provide. [Means for solving the problem] 【0010】 A building structure relating to one aspect of this disclosure comprises a plurality of elongated members, a metal nail plate having a plate portion and a plurality of piercing claws protruding from one surface of the plate portion, the plurality of piercing claws piercing into at least one of the plurality of elongated members, a plurality of facing materials provided on a frame constructed with the plurality of elongated members, and a fastener member provided in a penetrating state through the plurality of facing materials, wherein the nail plate has a second plate portion extending from the plate portion, the fastener member pierces the second plate portion and fastens the facing material to at least one of the plurality of elongated members via the second plate portion, and the exit direction of the fastener member and the exit direction of the plurality of piercing claws form an angle of 80° to 180°. [Effects of the Invention] 【0012】 According to this disclosure, even when a soft material is used for the structural frame, it is possible to more firmly fix the facing material to the structural frame. Building structure It can be provided. [Brief explanation of the drawing] 【0013】 [Figure 1] Figure 1 is a perspective view showing a building structure according to an embodiment of this disclosure. [Figure 2] Figure 2 is an enlarged side view of the first frame shown in Figure 1. [Figure 3] Figure 3 is a perspective view of the truss plate shown in Figure 2. [Figure 4] Figure 4 is a perspective view showing the mounting state of the nail plate as shown in Figures 1 and 2. [Figure 5] Figure 5 is a perspective view of the nail plate shown in Figures 1 and 2 from a different angle. [Figure 6] Figure 6 is a perspective view showing a first modified example of the nail plate shown in Figures 4 and 5. [Figure 7] Figure 7 is a perspective view showing a second modified example of the nail plate shown in Figures 4 and 5. [Modes for carrying out the invention] 【0014】 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. 【0015】 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 has a rectangular frame 10 when viewed from above, to which a plurality of facing materials 20 are provided. 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 rectangular frame 10 formed by connecting the first frame 11 and the second frame 12. A wide variety of facing materials 20 can be used, such as sandwich panels and air conditioning panels. 【0016】 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. 【0017】 As shown in FIG. 2, the first framework 11 is configured as a truss structure including a plurality of long members 13, namely, an upper chord member 13a, a lower chord member 13b, a vertical member 13c, and a diagonal member 13d. In the present embodiment, these upper chord member 13a, lower chord member 13b, vertical member 13c, and diagonal member 13d are made of, for example, sawn timber of relatively soft trees. The upper chord member 13a is the upper member of the truss structure, and the lower chord member 13b is the lower member of the truss structure. The vertical member 13c is a member arranged vertically between the upper chord member 13a and the lower chord member 13b. The diagonal member 13d is a member arranged diagonally in a rectangular portion formed by the upper chord member 13a, the lower chord member 13b, and the vertical member 13c. Such a truss structure functions to maintain the shape of the rectangular portion even when a force is applied, for example, in the direction of arrow A shown in FIG. 2. 【0018】 Note that the long member 13 is not limited to being made of sawn timber of soft trees. Further, the first framework 11 is not limited to the truss structure having the shape shown in FIG. 2, and may be, for example, a truss structure having an inclined portion or the like, or may not be a truss structure if possible. 【0019】 Here, as shown in FIG. 2, each long member 13 is connected in a state of being in contact with each other, and a truss plate 14 is attached so as to straddle the contact portion of each long member 13, thereby forming a truss structure. FIG. 3 is a perspective view of the truss plate 14 shown in FIG. 2. In FIG. 1, the illustration of the truss plate 14 is omitted. The truss plate 14 is made of metal and includes a flat plate portion 14a and a plurality of piercing claws 14b as shown in FIG. 3. 【0020】 The plurality of piercing claws 14b project from one surface of the flat plate portion 14a. Each piercing claw 14b has a pointed tip and can pierce across the plurality of long members 13. In the present embodiment, the plurality of piercing claws 14b are formed in a standing state by cutting out a part of the plate portion 14a in a cantilever shape. 【0021】 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. 【0022】 Furthermore, as shown in Figure 1, the building structure 1 according to this embodiment includes a fastener member 15 for fixing the facing material 20 to the frame 11, 12 side, and a metal nail plate 16 that is attached to appropriate locations on the frame 11, 12. 【0023】 The fastener member 15 is provided in a penetrating manner through one of the multiple facing materials 20. When the multiple facing materials 20 are air conditioning panels or the like, the fastener member 15 penetrates the facing materials 20 at a location that does not impair the function of the facing materials 20, reaches the frame 11, 12 side, and fixes the facing materials 20 to the structural frame 10 which is composed of the frame 11, 12. The fastener member 15 is made of, for example, a self-tapping screw. 【0024】 The nail plates 16 are provided, for example, in the example shown in Figure 2, one between each of the three truss plates 14 provided on the upper chord member 13a. Figure 4 is a perspective view showing the mounting state of the nail plates 16 shown in Figures 1 and 2, and Figure 5 is a perspective view of the nail plates 16 shown in Figures 1 and 2 from a different angle. As shown in Figures 4 and 5, the nail plate 16 comprises a plate portion 16a, a plurality of piercing claws 16b, and a second plate portion 16c. 【0025】 The plate portion 16a is a plate material formed in a flat shape. The multiple piercing claws 16b are configured in the same way as the multiple piercing claws 14b of the truss plate 14. That is, the multiple piercing claws 16b protrude from one surface of the plate portion 16a, have pointed tips, and are capable of piercing the long member 13 (upper chord member 13a). In this embodiment, the multiple piercing claws 16b are formed in an upright state by cutting out a part of the plate portion 16a in a cantilevered manner. 【0026】 The second plate portion 16c is a plate portion that extends from the plate portion 16a. As shown in Figure 4, this second plate portion 16c extends in a direction away from the elongated member 13 into which the multiple piercing claws 16b are pierced. Specifically, the second plate portion 16c extends in a direction away from the elongated member 13 and at an angle that is roughly parallel to the upper surface UP of the elongated member 13 (for example, the angle difference with the upper surface UP is within 10°). 【0027】 In this embodiment, the fastener member 15 (see Figure 1) is not configured to pierce the frame 11, 12, but rather reaches the second plate portion 16c and pierces the second plate portion 16c. Therefore, compared to the case where it pierces the frame of solid wood or the like, the facing material is attached more firmly to the frame 11, 12. In this embodiment, the fastener member 15 is assumed to be a self-tapping screw, and the configuration in which the fastener member 15 pierces the second plate portion 16c is assumed. However, it is not limited to this, and the fastener member 15 may be further fixed by other means such as bolting after its tip has been pierced. 【0028】 Here, a hole is formed in the facing material 20 by the fastener member 15 penetrating it. As a result, there is a possibility that rainwater or the like may seep in through this hole. However, the nail plate 16 shown in Figures 4 and 5 has a second plate portion 16c that extends in a direction away from the long member 13. Therefore, the nail plate 16 shown in Figures 4 and 5 is configured in such a way that even if rainwater or the like seeps in, it is difficult for the long member 13 to get wet. Consequently, the nail plate 16 shown in Figures 4 and 5 can reduce the possibility of the long member 13 corroding due to rainwater or the like, especially when the long member 13 is made of wood. 【0029】 In this embodiment, the building structure 1 preferably has an angle between the exit direction A1 of the fastener member 15 and the exit direction A2 of the multiple piercing claws 16b that is between 80° and 180°, and between 80° and 100°. Generally, the face material 20 of a building may be subjected to an upward force due to the influence of wind. When such a force is applied, a force in the exit direction (one direction of the normal direction of the second plate portion 16c) A1 is applied to the fastener member 15. Therefore, if the exit direction A1 of the fastener member 15 and the exit direction A2 of the multiple piercing claws 16b coincide to some extent, the nail plate 16 will come out of the long member 13 when an upward force is applied to the face material 20. In this case, even if the fastener member 15 and the nail plate 16 are firmly connected, the nail plate 16 will come out of the long member 13, and the face material 20 will not be able to be firmly fixed to the building structure 10. However, if the angles between the two directions A1 and A2 are between 80° and 180°, the possibility of the nail plate 16 coming loose due to wind can be reduced. In particular, if the angles between the two directions A1 and A2 are between 80° and 100°, the two directions A1 and A2 become orthogonal, which further prevents the nail plate 16 from coming loose. 【0030】 Furthermore, as shown in Figures 4 and 5, it is preferable that the nail plate 16 has a third plate portion 16d. The third plate portion 16d is a plate portion extending from the plate portion 16a and is in contact with or close to the lower surface UN, which is the side of the elongated member 13 that is in the direction A3 opposite to the exit direction A1. Note that close proximity means a distance of, for example, a few millimeters (for example, 5 mm) or less. 【0031】 In a nail plate 16 equipped with such a third plate 16d, even if an upward force is applied to the surface material 20 due to wind, the third plate portion 16d will catch on the long member 13, playing a role in suppressing the upward movement. Therefore, it becomes possible to fix the surface material 20 to the building structure 10 even more firmly. 【0032】 Figure 6 is a perspective view showing a first modified example of the nail plate 16 shown in Figures 4 and 5. As shown in Figure 6, in the nail plate 16 according to the first modified example, the second plate portion 16c extends along the upper surface UP of the elongated member 13, rather than in a direction away from the elongated member 13. Even in this case, the fastener member 15 (see Figure 1) can be pierced into the second plate portion 16c, and the exit direction A1 of the fastener member 15 and the exit direction A2 of the multiple piercing claws 16b can be set to the above angle. 【0033】 In this first modified example, the nail plate 16 has a second plate portion 16c that extends along the upper surface UP of the long member 13, so the second plate portion 16c does not protrude outward from the long member 13 and is less likely to get in the way. As a result, for example, building materials with the nail plate 16 attached to the long member 13 in the factory can be easily stacked and shipped without the second plate portion 16c protruding outward. 【0034】 Although not explained above, the truss plates 14 (see Figure 2) and nail plates 16 do not have multiple piercing claws 14b, 16b (see Figures 3 and 5) that easily penetrate the long members 13. For this reason, it is preferable that the truss plates 14 and nail plates 16 be attached to the long members 13 using a hydraulic press at a factory or similar facility. Due to these circumstances, if the building materials to which the nail plates 16 are attached cannot be stacked, it becomes necessary to pierce the nail plates 16 on-site, which requires tightening with clamps or hammering. However, since the building materials shown in Figure 6 are easy to stack, there is no need to perform such troublesome on-site work. 【0035】 Figure 7 is a perspective view showing a second modified example of the nail plate 16 shown in Figures 4 and 5. The nail plate 16 shown in Figure 7 has multiple piercing claws 16b that penetrate the lower surface UN. Therefore, the exit direction A2 of the multiple piercing claws 16b is from the upper surface UP of the long member 13 toward the lower surface UN. 【0036】 In the second modified example, the nail plate 16 has a second plate portion 16c extending from the plate portion 16a via a connecting plate 16e. The connecting plate 16e has a length approximately equal to the thickness of the elongated member 13 and extends toward the surface material 20 that is above it. The second plate portion 16c extends from the tip of this connecting plate 16e and extends in a direction away from the elongated member 13. 【0037】 In this second modified example, the nail plate 16 has the exit direction A1 of the fastener member 15 and the exit direction A2 of the multiple piercing claws 16b facing opposite directions, and the angle between them is 180°. Even with such a nail plate 16, the face material 20 can be firmly fixed to the building structure 10, and it is configured so that it does not easily come off the long member 13 even when exposed to wind. 【0038】 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. Then, a facing material 20 is attached to the frame 10 including these frames 11 and 12. 【0039】 Here, the width of one section (one rectangle) formed by the frameworks 11 and 12 is, for example, 6 m, and six panels 20, each 1 m wide and 6 m long, are attached to one section. Each panel 20 is then attached to the structural frame 10 using two fastener members 15. In this case, each fastener member 15 extends 3 m to the structural frame 10. 2 The fasteners must withstand the peeling force acting on the facing material 20. If the updraft pressure caused by wind blowing into the building during a typhoon is 2500 Pa, the force trying to pull out each fastener member 15 would be as much as 750 kgf. Furthermore, if the fastener member 15 directly penetrates a long member 13 such as solid wood, the long member 13 may not be able to withstand this force, causing the penetration point of the fastener member 15 to crumble and the fastener member 15 to detach. 【0040】 However, the building structure 1 according to this embodiment has the metal nail plate 16 described above, and the fastener member 15 is configured to pierce the second plate portion 16c of the nail plate 16. As a result, the fastener member 15 is firmly fixed by the metal nail plate 16. In other words, the fastener member 15 is pierced into the nail plate 16 in a state in which it can withstand a peeling force greater than the peeling force that it can withstand when it is directly pierced into the long member 13. In this way, by using the nail plate 16 according to this embodiment, the fastener member 15 is firmly fixed, and the facing material 20 is more firmly fixed to the building structure 10. 【0041】 In particular, the nail plate 16 has an angle between the exit direction A1 of the fastener member 15 and the exit direction A2 of the multiple piercing claws 16b that is 80° to 180°, preferably 80° to 100°. Therefore, even if the surface material 20 is lifted and pulled away by the influence of wind, that is, even if a force is applied to the fastener member 15 in the exit direction A1, the multiple piercing claws 16b of the nail plate 16 will not easily come out of the long member 13. Thus, the possibility of the nail plate 16 coming off the multiple long member 13 while the fastener member 15 is still pierced is also reduced. 【0042】 Furthermore, as shown in Figures 4 and 5, for example, the second plate portion 16c extends in a direction away from the elongated member 13 (the exit direction A2 of the multiple piercing claws 16b). Therefore, the second plate portion 16c is not located on the elongated member 13. Here, since the fastener member 15 pierces the face material 20, this piercing portion may form a path for rainwater to enter. Therefore, if the second plate portion 16c is located on the elongated member 13, rainwater may reach the elongated member 13, and depending on the material of the elongated member 13, there is a high possibility of corrosion. However, since the second plate portion 16c extends in a direction away from the elongated member 13, the possibility of rainwater reaching the elongated member 13 is reduced, and the possibility of corrosion is also reduced. 【0043】 Conversely, as shown in Figure 6, when the second plate portion 16c is provided so as to rest on the long member 13, the second plate portion 16c does not protrude outward from the long member 13 and is less likely to get in the way. This makes it easier to stack, for example, building materials manufactured in a factory with the nail plates 16 attached to the long member 13, when shipping them out of the factory. 【0044】 Furthermore, as shown in Figures 4 and 5, when the nail plate 16 includes a third plate portion 16d, that is, when the third plate portion 16d is provided in contact with or in close proximity to the side of the elongated member 13 opposite to the side of the facing material 20, it acts to withstand the peeling force generated on the facing material 20, thereby allowing the facing material 20 to be attached even more firmly to the structure 10. 【0045】 As described above, the building structure 1 according to this embodiment can use relatively soft materials such as solid wood as long members 13, while still being able to firmly fix the facing material 20 to the building structure 10 with fewer fastener members 15. 【0046】 Thus, according to the building structure 1 of this embodiment, the nail plate 16 has a second plate portion 16c, and the fastener member 15 pierces the second plate portion 16c, securing the face material 20 to the long member 13 via the second plate portion 16c. Therefore, the fastener member 15 is fixed to the metal nail plate 16 without directly piercing solid wood or the like. As a result, the fastener member 15 can be firmly fixed to the nail plate 16, similar to the case where the fastener member 15 is fixed by piercing a steel frame or the like. In addition, the exit direction A1 of the fastener member 15 and the exit direction A2 of the multiple piercing claws 16b form an angle of 80° to 180°. Therefore, even if the face material 20 is lifted and pulled away by the influence of wind, that is, even if a force is applied to the fastener member 15 in the exit direction A1, the multiple piercing claws 16b of the nail plate 16 cannot be easily removed from the long member 13. Therefore, the possibility of the nail plate 16 detaching from the long member 13 while the fastener member 15 remains fixed is reduced. As a result, even if a soft material is used for the frame 10, it is possible to provide a building structure 1 that can more firmly fix the face material 20 to the frame 10. 【0047】 Furthermore, since the exit direction A1 of the fastener member 15 and the exit direction A2 of the multiple piercing claws 16b form an angle of 80° to 100°, it can be said that the relationship between the two is approximately orthogonal. As a result, the multiple piercing claws 16b will not come out easily, and a building structure 1 can be provided that can fix the face material 20 to the building frame 10 even more firmly. 【0048】 Furthermore, the second plate portion 16c extends in a direction away from the long member 13. Therefore, the second plate portion 16c is not located on the long member 13. Here, since the fastener member 15 penetrates the face material 20, there is a possibility that rainwater, etc. may seep in through the penetration portion of the fastener member 15. Therefore, if the second plate portion 16c is located on the long member 13, rainwater, etc. may reach the long member 13, and depending on the material of the long member 13, there is a high possibility that the long member 13 will corrode. However, since the second plate portion 16c extends in a direction away from the long member 13, the possibility of rainwater, etc. coming into contact with the long member 13 is reduced, and the possibility of corrosion of the long member 13 can also be reduced. 【0049】 Furthermore, the nail plate 16 according to this embodiment has a second plate portion 16c into which the fastener member 15 can be pierced. Therefore, when the fastener member 15 is pierced into the second plate portion 16c, the fastener member 15 can be firmly fixed to the nail plate 16 in the same way as when it is fixed by being pierced into a steel frame or the like. One of the directions normal to the second plate portion 16c is the exit direction A1 of the fastener member 15, and the angle between this exit direction A1 and the opposite direction of the protrusion direction of the multiple piercing claws 16b, i.e., the exit direction A2 of the multiple piercing claws 16b, is between 80° and 180°. Therefore, even if the surface material 20 is lifted and pulled away by the influence of wind, i.e., even if a force is applied to the fastener member 15 in the exit direction A1, the multiple piercing claws 16b of the nail plate 16 will not easily come out of the object being pierced. Thus, the possibility of the nail plate 16 coming off the object while the fastener member 15 remains fixed is also reduced. Based on the above, even if a soft material is used for the structural frame 10, it is possible to provide a nail plate 16 that can more firmly fix the surface material 20 to the structural frame 10. 【0050】 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. 【0051】 For example, in the above embodiment, the nail plate 16 is not used to form a truss structure, but like the truss plate 14, it may be used to form a truss structure. That is, the multiple piercing claws 16b of the nail plate 16 may be arranged to span multiple elongated members 13. 【0052】 Furthermore, although the above explanation assumes a ceiling section, a similar structure may be adopted for walls or floors. In addition, although the second plate section 16c of the nail plate 16 extends from the plate section 16a in only one direction, it is not limited to this and may extend in multiple directions. 【0053】 Furthermore, although the building structure 1 according to this embodiment has truss structures for the frameworks 11 and 12, it is not limited to this, and does not have to be a truss structure. Also, the truss structure of the frameworks 11 and 12 may have inclined sections that are inclined with respect to the horizontal plane. In addition, the long members 13 do not have to be made of solid wood. 【0054】 In addition, it has been explained that the nail plate 16 may further comprise a plate portion 16a, a plurality of piercing claws 16b, a second plate portion 16c, a third plate portion 16d, and a connecting plate 16e. However, the nail plate 16 is not limited to these, and may further comprise structures other than those described above. For example, when attached to the elongated member 13, the cross-sectional shape perpendicular to the longitudinal direction of the elongated member 13 may be an inverted Ω shape, and a wide variety of shapes are possible. [Explanation of symbols] 【0055】 1: Architectural structure 10:Structure 13: Long member 15: Fastener component 16: Nail Plate 16a: Plate section 16b: Multiple piercing claws 16c: Second plate section 16d: Third plate section 20: Surface material A1: Direction of removal of fastener components A2: Direction of removal of multiple piercing claws

Claims

[Claim 1] Multiple long members, A metal nail plate having a plate portion and a plurality of piercing claws protruding from one surface of the plate portion, wherein the plurality of piercing claws pierce at least one of the plurality of elongated members, Multiple facing materials are provided on the frame which is constructed having the aforementioned multiple elongated members, The system comprises a fastener member that is provided in a penetrating manner through the plurality of surface materials, The nail plate has a second plate portion extending from the plate portion, The fastener member penetrates the second plate portion and fastens the surface material to at least one of the plurality of elongated members via the second plate portion. The direction in which the fastener member is removed and the direction in which the plurality of piercing claws are removed are configured to form an angle of 80° to 180°. architectural structure. [Claim 2] The direction in which the fastener member is removed and the direction in which the plurality of piercing claws are removed are configured to form an angle of 80° to 100°. The building structure according to claim 1. [Claim 3] The second plate portion of the nail plate extends in a direction away from the elongated member into which the plurality of piercing claws are inserted. The building structure according to claim 1.

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