Wall structure and stud restraint tool

Abstract

To provide a wall structure and a stud restraint tool capable of suppressing deformation of an irregular shaped stud having a weak part in a direction outward from a surface.SOLUTION: A wall structure has: a brace member (13) arranged obliquely to a vertical direction; an irregular-shaped stud (12) having a wall surface material attached to a front side, and having a weak part (31) at an interference part with the brace member; and a stud restraint tool (6) arranged at an intersection part (C) where the brace member and the weak part of the irregular-shaped stud intersect to each other, and suppressing out-of-plane deformation of the irregular-shaped stud, wherein the stud restraint tool has: a base part (61) fixed on one member of the irregular-shaped stud and the brace member; an engagement part (62) arranged in a state where it is brought into contact with or in close location to at least one of a front-side portion and a back-side portion of the other member of the irregular-shaped stud and the brace member, and engaged with the other member; and a connection part (63) connecting the base part and the engagement part.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a wall structure and a stud restraint, and more particularly to a wall structure and a stud restraint that are provided with a deformed stud that has a weakened portion such as a notch at the portion where it interferes with a brace member. [Background technology]

[0002] Braces (diagonal members) are sometimes installed inside the exterior walls or parting walls of a building to increase the strength of the wall. Braces are usually positioned so that they do not interfere with the studs to which the wall materials are fixed, but depending on the arrangement of studs inside the wall, they may be placed in a position that interferes with the studs. In this case, measures are taken such as cutting out only a portion of the stud in the vertical direction (the part that interferes with the brace) on the far side of the stud (rear end).

[0003] Japanese Patent Application Laid-Open Publication No. 2014-234646 (Patent Document 1) discloses a bearing wall that includes lip-channel steel studs and braces (diagonal members) inside. In this bearing wall, the rear panels of the studs are abutted against each other with a spacer in between and bolted together to form a column, and the braces are arranged to pass through the rear panels of the studs. That is, the studs are provided with insertion holes for inserting the braces. Because the strength of the studs decreases in the areas where such insertion holes are provided, a technology has been proposed in which reinforcing parts are provided near the insertion holes to prevent this decrease in strength. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-234646 Summary of the Invention [Problem to be solved by the invention]

[0005] When a stud has a notch or the like in a part of its longitudinal direction (vertical direction), the strength of that part (hereinafter referred to as the "weak part") is lower than that of the other parts (hereinafter referred to as the "general part"). Therefore, there is a concern that a stud with a weak part (hereinafter referred to as an "irregular stud") will deform more than a normal stud when subjected to an out-of-plane load.

[0006] Patent Document 1 prevents a decrease in the strength of the stud itself by providing a reinforcing portion (reinforcing plate) near the insertion hole of the stud. However, depending on the arrangement of the studs, it can be difficult to directly reinforce weak parts of the studs, and there has been a demand for technology that can efficiently prevent deformation of the studs in the out-of-plane direction.

[0007] The present invention has been made to solve the above-mentioned problems, and its purpose is to provide a wall structure and a stud restraint device that can suppress out-of-plane deformation of deformed studs with weak portions with a simple configuration. [Means for solving the problem]

[0008] The wall structure of the present invention comprises a brace member arranged at an angle relative to the vertical direction, a stud on the surface side of which a wall material is attached, the stud having a weak portion where it interferes with the brace member, and a stud restraint arranged at the intersection of the brace member and the weak portion of the stud to suppress out-of-plane deformation of the stud. The stud restraint has a base portion fixed to one of the stud and the brace member, an engaging portion arranged in contact with or in proximity to at least one of the surface side and back side of the other of the stud and the brace member and engaging with the other member, and a connecting portion connecting the base portion and the engaging portion.

[0009] Preferably, the base portion is fixed to a side surface of the profiled stud by a fastening member, and the engagement portion engages with the brace member.

[0010] Preferably, the base portion is positioned across the weak portion of the profiled stud and the general portion located above or below the weak portion, and the fastening member connects and fixes the upper and lower ends of the base portion to the weak portion and the general portion.

[0011] Preferably, the engaging portion is configured by a clamping member that clamps the brace member in the front and back directions.

[0012] Preferably, the clamping member includes an inclined portion that extends along the inclination direction of the brace member and is placed on the upper inclined surface of the brace member, and the connecting portion connects the lower end of the base portion and the lower end of the inclined portion.

[0013] Preferably, the clamping member includes a pair of extending portions facing each other in the front-rear direction, and the extending portions have convex portions on their inner surfaces.

[0014] Preferably, the clamping member includes a pair of extending portions facing each other in the front-rear direction, and the extending portions are formed so as to approach each other as they move away from the inclined portion.

[0015] Preferably, the plate thickness of the stud restraint is 2 mm or more.

[0016] Preferably, the clamping member includes a pair of extending portions facing each other in the front-rear direction, and an anti-slip member is provided on an inner surface of the extending portion on the rear side.

[0017] Preferably, the stud restraint further includes a spacing retaining portion that maintains the spacing between the base portion and the inclined portion.

[0018] Preferably, the engaging portion is configured by a surrounding member that surrounds the periphery of the brace member.

[0019] A stud restraint according to one aspect of the present invention is a stud restraint that is applied to an irregular stud that has a weak portion where it interferes with a brace member that is arranged at an angle relative to the vertical direction, and comprises a base portion that is fixed to one of the irregular stud and the brace member, an engaging portion that is arranged in contact with or in close proximity to at least one of the front side portion and the back side portion of the other of the irregular stud and the brace member and engages with the other member, and a connecting portion that connects the base portion and engaging portion.

[0020] A stud restraint according to another aspect of the present invention is a stud restraint that is applied to a deformed stud that has a weak portion at the interference point with a brace member that is arranged at an angle relative to the vertical direction, and includes a base portion that is fixed to the deformed stud, an engaging portion that is arranged in contact with the front and back sides of the brace member and engages with the brace member, and a connecting portion that connects the base portion and the engaging portion. The engaging portion is composed of a clamping member that clamps the brace member in the front and back directions, and the plate thickness of the stud restraint is 2.0 mm or more. [Effects of the Invention]

[0021] According to the present invention, the load acting in the out-of-plane direction on the deformed stud is received by the brace member via the stud restraint, thereby suppressing deformation of the deformed stud in the out-of-plane direction. [Brief explanation of the drawings]

[0022] [Figure 1] 1 is a cross-sectional view schematically showing the general configuration of an exterior wall according to each embodiment of the present invention. FIG. [Figure 2] FIG. 2 is a schematic front view of the internal structure of an exterior wall according to each embodiment of the present invention, as viewed from the indoor side. [Figure 3] FIG. 2 is a perspective view schematically showing the relationship between a stud and a brace according to each embodiment of the present invention. [Figure 4] 1A and 1B are side and cross-sectional views of a stud according to each embodiment of the present invention. [Figure 5]1 is a perspective view showing a schematic view of an attached state of a stud restraint device according to a first embodiment of the present invention. [Figure 6] FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. 5. [Figure 7] 1A is a perspective view of a stud restraint device according to a first embodiment of the present invention, and FIG. 1B is a side view of the same stud restraint device. [Figure 8] 1(A) to 1(C) are perspective views showing an example of a method for attaching the stud restraint device according to the first embodiment of the present invention. [Figure 9] FIG. 1A is a perspective view showing a first modified example of the clamping member according to the first embodiment of the present invention, and FIG. 1B is a perspective view showing a second modified example of the clamping member. [Figure 10] 10 is a plan view showing a third modified example of the clamping member according to the first embodiment of the present invention. FIG. [Figure 11] FIG. 1 is a perspective view showing a first modification of the stud restraint device according to the first embodiment of the present invention. [Figure 12] FIG. 10 is a plan view showing a second modification of the stud restraint device according to the first embodiment of the present invention. [Figure 13] FIG. 10 is a schematic cross-sectional plan view showing an example in which a stud restraint device is attached to a brace. [Figure 14] 10(A) is a perspective view of a stud restraint device according to a second embodiment of the present invention, and FIG. 10(B) is a side view of the same stud restraint device. [Figure 15] FIG. 10 is a cross-sectional view showing the attached state of a stud restraint device according to a second embodiment of the present invention. [Figure 16] 10(A) is a perspective view showing an example of a spacing portion of a stud restraint device according to a second embodiment of the present invention, and FIG. 10(B) is a side view of the same stud restraint device. [Figure 17] FIG. 11 is a cross-sectional view schematically showing a state before the brace member is surrounded by the surrounding member according to the third embodiment of the present invention. [Figure 18] 10 is a cross-sectional view schematically showing a state in which the brace member is surrounded by the surrounding member. FIG. [Figure 19]FIG. 11 is a cross-sectional view schematically showing a state before a brace member is surrounded by a modified example of the surrounding member according to the third embodiment of the present invention. [Figure 20] 10 is a cross-sectional view schematically showing a state in which the brace member is surrounded by the surrounding member. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0023] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are designated by the same reference numerals and description thereof will not be repeated.

[0024] <First Embodiment> (Overview of the overall structure of the exterior wall) Fig. 1 is a cross-sectional view showing a schematic view of the structure of an exterior wall 1 according to an embodiment, and Fig. 2 is a schematic front view of the interior of the exterior wall 1 as seen from the indoor side. Arrow A11 in Fig. 1 indicates the outdoor direction, arrow A12 indicates the indoor direction, arrow A2 indicates the width direction of the exterior wall 1, and arrow A3 in Fig. 2 indicates the up-down direction (height direction). Symbol S1 in Fig. 1 indicates the outdoor space, and symbol S2 indicates the indoor space. The same applies to the subsequent figures.

[0025] Referring to Figure 1, the exterior wall 1 includes a plurality of columns 11, studs 12 arranged between the columns 11, brace members (shown by dashed lines) 13 spanning between the columns 11, wall materials 21 such as gypsum board arranged on the indoor side of the studs 12, and exterior wall panels 22 arranged on the outdoor side of the columns 11.

[0026] The exterior wall panel 22 integrally includes a panel frame 23 which is a rectangular frame body, a heat insulating material 24 filled in the panel frame 23, an exterior base 25 located on the outdoor side of the panel frame 23, and an exterior material 26 such as siding. The exterior wall panel 22 is attached to the pillar 11 by fixing the upper and lower ends of the panel frame 23 to the pillar 11 via fixing metal fittings (not shown).

[0027] The brace member 13 in this embodiment is a buckling-restrained brace of a known structure, in which a steel core is sandwiched between two buckling-restrained members (steel frame members and mortar filler). Hereinafter, this will be referred to simply as "brace 13." The brace 13 is located on the rear (outdoor) side of the wall member 21 and, as shown in FIG. 2, is arranged at an angle relative to the vertical direction. As shown in FIGS. 5 and 6, the brace 13 has a rectangular prism shape and includes an upwardly inclined surface 13a facing diagonally upward, an indoor-facing side surface (front surface portion) 13b, an outdoor-facing side surface (rear surface portion) 13c, and a downwardly inclined surface 13d. The brace 13 expands and contracts along its longitudinal direction. The brace member is not limited to a buckling-restrained brace, but may be a rectangular steel pipe or the like that does not expand and contract along the longitudinal direction.

[0028] As shown in Fig. 2, stud 12 extends in the vertical direction, with the upper and lower ends restrained by runners 14. In this embodiment, stud 12 is C-shaped (Fig. 1), and is attached with screws 91 with wall material 21 in surface contact with the front side (indoor side) of stud 12. The plate thickness T1 (Fig. 6) of stud 12 is, for example, about 0.5 mm.

[0029] As shown in Figure 1, the positions of the studs 12 to which the wall material 21 is fixed and the positions of the braces 13 overlap each other in the inside-outside direction. This positional relationship between the studs 12 and the braces 13 is shown in Figures 2 and 3.

[0030] As shown in Figure 3, the stud 12 has a notch (weakened portion) 31 at the part where it interferes with the brace 13, thereby avoiding interference with the brace 13. The weak portion 31 is provided only in the part where the brace 13 passes, i.e., in the part where it interferes with the brace 13, and is formed by partially cutting out the stud 12 from the back side (outdoor side) when viewed from the indoor side. Such a stud 12 will be referred to below as a "deformed stud 12."

[0031] 4 is a diagram showing an example of the structure of a deformed stud 12 having a weak portion 31. A side view of the deformed stud 12 is shown on the left side of the page, and a cross-sectional view of the general portion 32 and weak portion 31 is shown on the right side of the page. The general portion 32 refers to a portion that has no defects such as notches. The general portion 32 has a roughly C-shaped cross section and includes a surface portion 121 that is the mounting surface for the wall material 21, a pair of side portions 122, and a pair of lip portions 123 that face the surface portion 121. The general portion 32 has an opening 120a between the pair of lip portions 123.

[0032] The weak portion 31 of the profiled stud 12 differs from the general portion 32 in that it does not include the entire lip portion 123 or part of the pair of side portions 122. In other words, the weak portion 31 has a substantially U-shaped cross section and includes the surface portion 121 and a pair of side portions (hereinafter referred to as "short side portions") 125 that are shorter than the side portions 122 of the general portion 32.

[0033] A deformed stud 12 having a weak portion 31 is prone to deformation in an out-of-plane direction. To suppress this deformation, in this embodiment, as shown in Figure 5, a stud restraint 6 is fixed to the side surface (right side surface when viewed from the front) of the deformed stud 12. The stud restraint 6 is placed in the upper part C1 of the intersection C (Figure 3) where the brace 13 and the weak portion 31 of the deformed stud 12 intersect. Specifically, the upper part C1 shown in Figure 3 is the part where the right side surface of the deformed stud 12 when viewed from the front intersects with the upper inclined surface 13a of the brace 13 at an acute angle (indicated by "θ2" in Figure 2), and includes a space formed in a roughly V-shape when viewed from the front.

[0034] (About stud restraints) The stud restraint device 6 will be described with reference to Figures 5 to 7. In the attached state, the direction along the up-down direction of the exterior wall 1 will be referred to as the vertical direction of the stud restraint device 6, and the direction along the depth direction (front-to-back direction) of the exterior wall 1 will be referred to as the horizontal direction (left-to-right direction) of the stud restraint device 6.

[0035] The stud restraint device 6 has a base portion 61 that is fixed to the profiled stud 12, an engagement portion 62 that engages with the brace 13, and a connecting portion 63 that connects the base portion 61 and the engagement portion 62. The stud restraint device 6 is typically formed by processing a single steel plate. The plate thickness T2 of the stud restraint device 6 (FIG. 7(B)) is set, for example, in the range of 1 to 2 mm. The plate thickness T2 of the stud restraint device 6 is preferably larger than the plate thickness T1 of the profiled stud 12 (FIG. 6), and more preferably is at least twice the plate thickness T1 of the profiled stud 12. In this embodiment, the plate thickness T2 is 1.6 mm, for example.

[0036] (About the base) As shown in FIG. 7(A), the base portion 61 is a rectangular flat plate with a vertical side 611 longer than a horizontal side 612. Both sides may be of equal length (approximately square). The base portion 61 has through holes 64 (pre-drilled holes) near each corner. The base portion 61 is fixed to the profile stud 12 by passing fastening members (screws) through the through holes 64.

[0037] As shown in Figure 5, the base portion 61 is fixed to the side portion 122 and short side portion 125 of the shaped stud 12 by fastening members 71, 72. The fastening members 71, 72 are passed through upper and lower through-holes 64 (Figure 7(A)) at the indoor end (left side of the page) of the base portion 61 to secure it in place. The fastening members 71, 72 are typically tapping screws, but are not limited to this and may also be bolts and nuts.

[0038] Specifically, the upper end of the base portion 61 is connected and fixed to the side surface portion 122 (general portion 32) by the upper fastening member 71, and the lower end of the base portion 61 is connected and fixed to the short side surface portion 125 (weak portion 31) by the lower fastening member 72. By connecting and fixing the base portion 61 across the general portion 32 and the weak portion 31 in this way, the strength of the deformed stud 12 is improved. Note that the through hole 64 at the outdoor end (right side of the drawing) of the base portion 61 is used when attaching the stud restraint device 6 to the left side surface of the deformed stud 12 when viewed from the front (for example, the position indicated by symbol P2 in Figure 2).

[0039] (Regarding the engagement part) In this embodiment, the engaging portion 62 is configured by a clamping member 62 that clamps the brace 13 in the front-back direction (indoor-outdoor direction). The front-back direction is indicated by the symbol B. The same applies to the subsequent figures.

[0040] The clamping member 62 has a generally U-shaped cross section and includes an inclined portion 624 and a pair of extending portions 625, 625. The inclined portion 624 extends along the inclination direction of the brace 13 and is disposed so as to approach the base portion 61 from the upper end to the lower end. The inclined portion 624 is placed on the upper inclined surface 13a of the brace 13. That is, the inner surface 624a of the inclined portion 624 and the upper inclined surface 13a of the brace 13 are in contact with each other. In this embodiment, the width dimension W1 (inner dimension of the clamping member) of the inclined portion 624 (FIG. 7(A)) is generally equal to the depth dimension W2 (length in the front-to-back direction) of the brace 13 (FIG. 6). The width dimension W1 may be slightly larger than the depth dimension W2.

[0041] Here, the angle θ1 (FIG. 7(B)) formed between the base portion 61 and the clamping member 62 is equal to the angle θ2 (FIG. 2) formed between the right side surface of the deformed stud 12 at the upper portion C1 of the intersection C and the upward inclined surface 13a of the brace 13. Therefore, as will be described later, when attaching the stud restraint device 6 to the deformed stud 12, it can be easily positioned at a position where it contacts the deformed stud 12 and the brace 13, improving workability.

[0042] 6, the width W3 of the inclined portion 624 (clamping member 62) is shorter than the width W4 of the base portion 61. In other words, both ends of the base portion 61 in the width direction extend outside the width range of the clamping member (engaging portion) 62. Therefore, when fixing the base portion 61 to the deformed stud 12 via the fastening members 71, 72, they do not interfere with the work of screwing the fastening members 72.

[0043] A pair of extension portions 625 extend parallel to each other (along the side surfaces of the brace 13) from both side edges in the width direction of the inclined portion 624. The pair of extension portions 625 sandwich the brace 13 in the front-to-back direction. That is, the inner surface 625a of the indoor-side extension portion 625 contacts the indoor-side side surface 13b of the brace 13, and the inner surface 625b of the outdoor-side extension portion 625 contacts the outdoor-side side surface 13c of the brace 13. Note that the indoor-side and outdoor-side inner surfaces 625a, 625b may be close to the side surfaces 13b, 13c of the brace 13 (there may be a small gap between them).

[0044] As shown in Fig. 7, the extension portion 625 is, for example, rectangular, and the length dimension L2 of the vertical side 621 is longer than the length dimension L3 of the horizontal side 623. The length dimension L2 of the vertical side is set, for example, in the range of 30 to 100 mm, and the length dimension L3 of the horizontal side is set, for example, in the range of 10 to 50 mm. It is desirable that the length dimension L3 of the horizontal side is at least half the length dimension L4 (Fig. 5) in the width direction of the side surface of the brace 13. Note that the length dimension L2 of the vertical side may be longer than the length dimension L1 in the vertical direction of the base portion 61.

[0045] (About the connecting part) 7(B), connecting portion 63 connects the lower end of base portion 61 and the lower end of clamping member 62. Specifically, connecting portion 63 is continuous at one end with the lower end of base portion 61, and at the other end with the lower end of inclined portion 624. When forming the stud restraint device, the bent portion formed when the steel plate is bent into a substantially V-shape constitutes connecting portion 63.

[0046] With the above configuration, the stud restraint device 6 is fixed to the deformed stud 12, and the clamping member (engagement portion) 62 of the stud restraint device 6 is fitted into the brace 13. Therefore, even if a load is applied to the deformed stud 12 in the indoor direction A12 and the deformed stud 12 attempts to deform in the indoor direction A12, the extension portion 625 on the outdoor side S1 of the clamping member 62 engages with the brace 13, suppressing the deformation. Conversely, when a load is applied to the deformed stud 12 in the outdoor direction A11, the extension portion 625 on the indoor side S2 of the clamping member 62 engages with the brace 13, suppressing deformation of the deformed stud 12 in the outdoor direction. In other words, the load applied in the out-of-plane direction of the deformed stud 12 is received by the brace member 13 via the stud restraint device 6. As a result, deformation of the deformed stud 12 in both the indoor and outdoor directions is suppressed.

[0047] Furthermore, the clamping members 62 sandwich the braces 13, but the two are not fixed to each other. That is, the braces 13 are expandable (movable relative to) in the longitudinal direction (the direction of arrow A4 in FIG. 5) with respect to the clamping members 62. Therefore, even if an external force is applied to the braces 13 due to shaking of the building caused by earthquake motion or wind pressure, the braces 13 can expand and contract in the direction of arrow A4 and follow the shaking of the building.

[0048] (Example of installation method) An example of a method for attaching the stud restraint device 6 will be described with reference to Figure 8. In this example, the stud restraint device 6 is attached to the right side of the deformed stud 12 when viewed from the front. First, as shown in Figure 8(A), the stud restraint device 6 (clamping member 62) is fitted into the brace 13 from above, and the stud restraint device 6 is placed on the brace 13. Next, the stud restraint device 6 is slid downward along the upward inclined surface 13a of the brace 13 toward the upper part C1 of the intersection between the deformed stud 12 and the brace 13, and temporarily placed in a position where the base portion 61 abuts against the side of the deformed stud 12 (Figure 8(B)). Thereafter, as shown in Figure 8(C), the base portion 61 is attached and fixed to the side of the deformed stud 12 using fastening members 71 and 72. This completes the stud restraint device 6 being fixed in place.

[0049] Temporarily placing the stud restraint device 6 is easy because it is only necessary to slide the stud restraint device 6 along the brace member 13. Furthermore, because the clamping member 62 of the stud restraint device 6 is fitted into the brace 13, the posture of the stud restraint device 6 is stable, making it easy to install the fastening members 71, 72.

[0050] In the above, an example was described in which the stud restraint device 6 was attached to the right side of the deformed stud 12 as viewed from the front (the area indicated by reference symbol P1 in FIG. 2 ). However, by appropriately changing the orientation of the stud restraint device 6, it may also be attached to the area formed by the left side surface of the deformed stud 12 as viewed from the front and the upper inclined surface 13a of the brace 13 (reference symbol P2), or the area formed by the left side surface of the deformed stud 12 as viewed from the front and the lower inclined surface 13d of the brace 13 (reference symbol P3). It is also desirable to attach a stud restraint device 6 to each weak portion. Furthermore, multiple stud restraint devices 6 may be attached to a single deformed stud 12, for example, by attaching them to both areas P2 and P3.

[0051] (Modification 1 of clamping member) 9(A) shows a first modified example of the clamping member of the stud restraint device 6 in the first embodiment. The clamping member 62A of this modified example includes a pair of extending portions 625, 625 facing each other in the front-rear direction B, and each extending portion 625 has an embossed protrusion 625e on its inner surface 625a, 625b. By forming the protrusions 625e, even if there is a slight gap between the inner surfaces 625a, 625b and the side surfaces (13b, 13c) of the brace 13, the protrusions 625e come into contact with the side surfaces of the brace 13, preventing misalignment in the indoor / outdoor direction when the stud restraint device 6A is temporarily placed (FIG. 8(B)). As a result, positioning of the stud restraint device 6A when screwing it to the deformed stud 12 is easy.

[0052] (Modification 2 of clamping member) 9(B) shows a second modification of the clamping member in the first embodiment. Clamping member 62B of this modification includes a pair of extending portions 625, 625 facing each other in the front-to-back direction B, and extending portions 625 are formed so as to approach each other as they move away from inclined portion 624. That is, angle θ formed between inner surface 624a of inclined portion 624 and inner surfaces 625a, 625b of extending portion 625 is smaller than 90°. The angle θ is set in the range of 85° to 87°. Extended portion 625 has a folded portion 625c at its free end.

[0053] Because the extensions 625 are inclined so that they approach each other, the spring elasticity allows the stud restraint 6B to be firmly clamped when it is temporarily placed (see FIG. 8(B)). This makes it easy to position the stud restraint 6B when screwing it to the deformed stud 12. In addition, the folded-back portions 625c make it easy to attach the clamping member 62 to the brace 13.

[0054] (Variation 3 of clamping member) 10 shows a third variation of the clamping member in the first embodiment. The clamping member 62C is formed with a substantially C-shaped cross section. When the brace 13A is a member with a circular cross section, the clamping member 62C is in close contact with the brace 13A. That is, the inclined portion 624 (inner surface 624a) of the clamping member 62C is in contact with the upper inclined surface 13a of the brace 13A, and the inner surfaces 625a and 625b of the extension portion 625 are in contact with the front portion 13b and the back portion 13c of the brace 13A, respectively. In this example, the front portion 13b is the portion of the circular cross section of the brace 13A that includes the point closest to the interior, and the back portion 13c is the portion of the circular cross section of the brace 13A that includes the point closest to the exterior.

[0055] (Stud restraint variation 1) 11 shows a first variation of the stud restraint device in the first embodiment. The entire stud restraint device 6A is formed in a roughly U-shape. There is no inclined portion of the clamping member, and a pair of extending portions 625, 625 sandwich the brace 13 from the front and back.

[0056] In this example, the extension portion 625 forms the engagement portion 62, and the inner surface of the extension portion 625 contacts the side surfaces 13b, 13c of the brace 13. The portion between the base portion 61 and the extension portion 625 forms the connecting portion 63. The base portion 61 is provided with upper and lower ears 66 for fastening to, for example, the profiled stud 12. The upper ear 66 is fixed at the general portion 32 by a fastening member 71, and the lower ear 66 is fixed at the weak portion 31 by a fastening member 72. The contact area with the brace 13 may be increased by further extending the extension portion 625.

[0057] (Stud restraint variation 2) Figure 12 shows a second variation of the stud restraint device in the first embodiment. The stud restraint device 6B is formed in a generally L-shape. The base portion 61 is fixed to the side surface of the deformed stud 12. The inner surface 625b of the engagement portion 62 contacts the outdoor side surface 13c of the brace 13. The portion between the engagement portion 62 and the base portion 61 forms the connecting portion 63.

[0058] 12, the stud restraint 6B is provided so as to contact the side surface 13c of the brace 13 on the outdoor S1 side, but it may also be provided so as to contact the side surface 13b on the indoor S2 side. Because the studs 12 are generally prone to deformation in the indoor direction A12 when attaching handrails and shelves to the gypsum board, it is desirable to provide the stud restraint 6B so that the side surface 13c of the brace 13 on the outdoor S1 side and the inner surface 625b of the extension 625 contact each other.

[0059] (others) The stud restraint may be manufactured separately for right-side and left-side mounting of a deformed stud. In other words, the stud restraint in Figure 7 has through-holes on both sides of the base in the width direction, making it suitable for both left and right use. However, as in the stud restraint in embodiment 2 described below, the width of the base may be reduced by, for example, half, and upper and lower through-holes may be provided on only one side in the width direction. In this case, the width of the base may be smaller than the width of the engagement part.

[0060] <Embodiment 2> The stud restraint device according to this embodiment has a structure that improves the resistance of the engaging portion to coming off the brace when a load is applied in an out-of-plane direction (particularly toward the interior of the building).

[0061] A stud restraint device 60A according to the second embodiment will be described with reference to Figures 14 to 16. The braces and deformed studs that make up the wall structure are similar to those of the first embodiment, and therefore will not be illustrated or described repeatedly. In describing the stud restraint device 60A according to the second embodiment, differences from the first embodiment will be mainly described, and descriptions of commonalities with the first embodiment will not generally be repeated.

[0062] (About stud restraints) In this embodiment, too, the direction along the up-and-down direction of the exterior wall 1 (Figure 1) when the stud restraint device 60A is installed will be described as the vertical direction of the stud restraint device 60A, and the direction along the depth direction (front-to-back direction) of the exterior wall 1 will be described as the horizontal direction (left-to-right direction) of the stud restraint device 60A.

[0063] The stud restraint 60A has a base portion 61 that is fixed to the profiled stud 12 (FIG. 3), an engagement portion 62 that engages with the brace 13 (FIG. 3), and a connecting portion 63 that connects the base portion 61 and the engagement portion 62. The stud restraint 60A is typically formed by processing a single steel plate. The plate thickness T2 (FIG. 14(B)) of the stud restraint 60A is 2 mm or more, for example, set in the range of 2 to 3 mm. The plate thickness T2 of the stud restraint 60A is preferably greater than the plate thickness T1 (FIG. 6) of the profiled stud 12, and more preferably four times or more the plate thickness T1 of the profiled stud 12. In this embodiment, the plate thickness T2 is 2.3 mm, for example.

[0064] (About the base) 14(A), the base portion 61 is a rectangular flat plate with a vertical side 611 longer than a horizontal side 612. In this embodiment, the width W4 of the base portion 61 is smaller than the width W1 of the engagement portion 62. As an example, the width W1 of the engagement portion 62 is set in the range of 70 to 75 mm, and the width W4 of the base portion 61 is set in the range of 40 to 42 mm.

[0065] The width W4 of the base portion 61 is formed to be approximately the same as the width W5 (Figure 15) of the side portion 122 (general portion 32) of the shaped stud 12. For example, the width W5 of the general portion 32 is approximately 45 mm. The base portion 61 does not have a "portion extending outside from the shaped stud 12" as shown in Figure 5.

[0066] As shown in Fig. 14, the base portion 61 has a pair of through holes 64 (pre-holes) along one vertical side 611. As in the first embodiment, as shown in Fig. 15, the base portion 61 is fixed to the side portion 122 and the short side portion 125 of the deformed stud 12 by fastening members 72 (71).

[0067] (Regarding the engagement part) In this embodiment, the engaging portion 62 is configured by a clamping member 62 that clamps the brace 13 in the front-to-back direction (indoor-outdoor direction).

[0068] 14, the clamping member 62 is formed to have a substantially U-shaped cross section, and has an inclined portion 624 and a pair of extending portions 625, 625. The inclined portion 624 extends along the inclination direction of the brace 13, and is provided so as to approach the base portion 61 from the upper end to the lower end.

[0069] As shown in FIG. 15, the inclined portion 624 is placed on the upper inclined surface 13a of the brace 13. That is, the inner surface 624a of the inclined portion 624 and the upper inclined surface 13a of the brace 13 are in contact with each other. As in the first embodiment, the width dimension W1 (inner dimension of the clamping member) of the inclined portion 624 (FIG. 7(A)) is approximately equal to the depth dimension W2 (length in the front-to-back direction) of the brace 13 (FIG. 6). Note that the width dimension W1 may be slightly larger than the depth dimension W2.

[0070] 15 , a pair of extension portions 625 extend from both side edges in the width direction of the inclined portion 624. The pair of extension portions 625 sandwich the brace 13 in the front-to-back direction (symbol B). That is, the inner surface 625a of the indoor-side extension portion 625 contacts the indoor-side side surface 13b of the brace 13, and the inner surface 625b of the outdoor-side extension portion 625 contacts the outdoor-side side surface 13c of the brace 13.

[0071] 9(B), clamping members 62 of this embodiment are formed so as to approach each other as they move away from inclined portion 624. An angle θ formed between inner surface 624a of inclined portion 624 and inner surfaces 625a, 625b of extending portion 625 is smaller than 90°. The angle θ is set in the range of 85° to 89°.

[0072] 14, the extension 625 is, for example, substantially square, with a length L2 of the vertical side 621 and a length L3 of the horizontal side 623 being substantially equal. The lengths L2 and L3 are set, for example, in the range of 60 to 80 mm. It is desirable that the length L3 of the horizontal side be approximately the same as the length L4 (FIG. 5) in the width direction of the side surface of the brace 13.

[0073] 14(A), an anti-slip member 626 may be provided on an inner surface 625b of the extension portion 625 on the rear side. Examples of the anti-slip member 626 include elastic materials such as Eptsealer (registered trademark) and butyl tape. Note that the anti-slip member 626 may be provided on both the inner surface 625b of the extension portion 625 on the rear side and the inner surface 625a of the extension portion 625 on the front side.

[0074] (About the connecting part) 14(B), the connecting portion 63 connects the lower end of the base portion 61 and the lower end of the clamping member 62. The width W6 (FIG. 14) of the connecting portion 63 is smaller than the width W1 of the inclined portion 624, and is set in the range of 30 to 32 mm, for example.

[0075] The stud restraint device 60A in this embodiment has a thick plate thickness (2 to 3 mm), and the brace 13 is sandwiched between extensions 625 that are the same size as the width of the front and back sides of the brace 13. Therefore, even if an out-of-plane load is applied to the deformed stud 12 and the deformed stud 12 attempts to deform in the out-of-plane direction, the highly rigid extensions 625 engage with the brace 13 to suppress this deformation.

[0076] In particular, even if a handrail or the like is installed on the wall material 21 (Figure 1) and a tensile load toward the interior of the building is applied to the deformed stud 12, the "detachment of the engaging portion 62 from the brace 13" as shown by the imaginary line in Figure 15 can be prevented, and the deformed stud 12 can be reinforced.

[0077] (Modification of the base part) 16A and 16B show a modified example of the base portion 61 of the stud restraint device 60A in this embodiment. In Fig. 16A, part of the connecting portion 63 and the engaging portion 62 are not shown.

[0078] In this modified example, the base portion 61 has an upper horizontal side 612a that is longer than the lower horizontal side 612b, and has a shape similar to a triangle added to the outdoor-facing vertical side of the base portion 61 (rectangle) in Fig. 14(A). As shown in Fig. 16(B), the triangular portion is bent (toward the brace) so as to abut or come close to the inclined portion 624, forming a spacing retaining portion 627 that maintains the spacing between the base portion 61 and the inclined portion 624.

[0079] The spacing retaining portion 627 abuts against the inclined portion 624, thereby preventing the engaging portion 62 from coming off the brace 13 when an out-of-plane load is applied to the stud restraint 60A. Furthermore, bending the base portion 61 improves the rigidity of the stud restraint 60A. From the perspective of improving rigidity, the base portion 61 may be bent in the opposite direction to the brace 13 to form a rib.

[0080] In addition, instead of forming the spacing retaining portion 627 by bending a part of the base portion 61, a separate member may be provided between the base portion 61 and the inclined portion 624, perpendicular to both sides, and welded to at least one of the two.

[0081] <Third Embodiment> A stud restraint device 60B according to the third embodiment will be described with reference to Figures 17 and 18. The braces and deformed studs that make up the wall structure are similar to those of the first embodiment, and therefore will not be illustrated or described repeatedly. In describing the stud restraint device 60B according to the third embodiment, differences from the second embodiment will be mainly described, and descriptions of commonalities with the second embodiment will not generally be repeated.

[0082] As shown in FIG. 18, the engaging portion 62 is configured by a surrounding member that surrounds the periphery of the brace 13 (a first engaging portion 62a and a second engaging portion 62b).

[0083] As shown in Figure 17, the first engagement portion 62a has almost the same shape (approximately U-shaped) as the engagement portion 62 of embodiment 2, but differs in that the end of the outdoor-side extension portion 625 is bent toward the outdoor side, forming a folded portion 62a1.

[0084] The second engaging portion 62b is formed, for example, by bending a single steel plate, and has a substantially U-shaped cross section, with the indoor-side portion 62b2 being longer than the outdoor-side portion 62b1. The outdoor-side portion 62b1 and the indoor-side portion 62b2 are connected to each other via a connecting portion 62b3, with a hook portion 62b4 formed at an end of the outdoor-side portion 62b1 and a flange portion 62b5 formed at an end of the indoor-side portion 62b2. A screw hole (not shown) is formed in the flange portion 62b5 at a position corresponding to the through-hole 64 of the base portion 61 (FIG. 14(A)).

[0085] The following describes how to attach the stud restraint 60B to the brace 13 and the profiled stud 12. First, as shown in Figures 8(A) and (B), the first engagement portion 62a is engaged with the brace 13, and the stud restraint 60B, excluding the second engagement portion 62b, is positioned relative to the brace 13 and the profiled stud 12. At this stage, the stud restraint 60B is not fixed to the profiled stud 12.

[0086] Thereafter, the hook portion 62b4 of the second engagement portion 62b is hooked onto the folded-back portion 62a1 of the first engagement portion 62a, and the second engagement portion 62b is attached to the first engagement portion 62a so that the inner surface of the connecting portion 62b3 of the second engagement portion 62b contacts the downward inclined surface 13d of the brace 13 and the inner surface of the indoor side portion 62b2 contacts the indoor side surface 62a2 of the first engagement portion 62a. In this state, fastening members 72 (FIG. 17) are passed through the holes in the flange portion 62b5 of the second engagement portion 62b and the through-holes 64 in the base portion 61, thereby fastening the second engagement portion 62b and the base portion 61 together to the deformed stud 12 and fixing them.

[0087] According to this embodiment, the brace 13 is surrounded by the first and second engagement portions 62a, 62b that fit together in the left-right direction, thereby preventing the stud restraint device 60B from coming off the brace 13 due to an out-of-plane load.

[0088] (Modification of the Surrounding Member) 19 and 20, a modified example of the surrounding member according to the third embodiment will be described. As shown in Fig. 20, the engaging portion 62 is composed of a surrounding member (first engaging portion 62c and second engaging portion 62d) that surrounds the periphery of the brace 13. The first engaging portion 62c and the second engaging portion 62d fit into the brace 13 in the front-to-back direction.

[0089] 19, first engagement portion 62c does not have an extending portion on the indoor side, and outdoor-side extending portion 625 extends to cover part of downward inclined surface 13d of brace 13, forming extension portion 6251. First engagement portion 62c is formed by inclined portion 624, extending portion 625, and extending portion 6251 so as to open toward the indoor side.

[0090] The second engagement portion 62d has a covering portion 62d1 that covers the brace 13 from the indoor side, a joining portion 62d2 that is provided at one end of the covering portion 62d1 and joined to the extension portion 6251, and a flange portion 62d3 that is provided at the other end of the covering portion 62d1. The second engagement portion 62d is formed, for example, by bending a single steel plate, and a screw hole (not shown) is formed in the flange portion 62d3 at a position that corresponds to the through hole 64 of the base portion 61 (FIG. 14(A)).

[0091] The following describes how to attach the stud restraint device 60C to the brace 13 and the deformed stud 12. First, the first engagement portion 62c is engaged with the brace 13 from the outdoor side. The first engagement portion 62c is attached to the brace 13 so that the inner surface 625d of the extension portion 6251 contacts the downward inclined surface 13d of the brace 13 and the inner surface 625b of the outdoor-side extension portion 625 contacts the outdoor-side side surface 13c of the brace 13.

[0092] In this way, the stud restraint 60C, excluding the second engagement portion 62d, is positioned relative to the brace 13 and the deformed stud 12. At this stage, the stud restraint 60C is not fixed to the deformed stud 12.

[0093] Thereafter, the second engaging portion 62d is attached to the first engaging portion 62c so that the covering portion 62d1 of the second engaging portion 62d abuts against the end surface 624e of the inclined portion 624, the joint portion 62d2 abuts against the extension portion 6251, and the flange portion 62d3 overlaps the base portion 61.

[0094] Covering portion 62d1 and end surface 624e are fixed to each other by, for example, an adhesive. Joining portion 62d2 and extending portion 6251 may be fixed to each other by an adhesive, or may be fixed to each other by folded portion 62a1 and hook portion 62b4 as in the example of FIG.

[0095] With the second engagement portion 62d attached to the first engagement portion 62c, a fastening member 72 (Figure 20) is passed through the hole in the flange portion 62d3 of the second engagement portion 62d and the through hole 64 in the base portion 61, thereby fastening the second engagement portion 62d and the base portion 61 together to the deformed stud 12 and fixing them.

[0096] Although the embodiments of the present invention have been described above with reference to the drawings, the present invention is not limited to the illustrated embodiments. Various modifications and variations can be made to the illustrated embodiments within the same scope as the present invention or within an equivalent scope.

[0097] For example, the base portion 61 may not be provided with through holes 64 near the corners thereof, and the base portion 61 and the deformed stud 12 may be overlapped and fixed together with tapping screws (fastening members).

[0098] Furthermore, in the stud restraint device, the angle θ1 (FIG. 7(B)) formed between the base portion 61 and the engagement portion 62 is an acute angle, but this angle θ1 may be an obtuse angle, and the device may be attached at a location such as that indicated by symbol P4 in FIG. 2.

[0099] Furthermore, although only notches have been described as weak parts of deformed studs, the above-mentioned stud restraint device can also be applied to deformed studs in which the weak part is formed by providing an insertion hole through which the brace member passes instead of a notch.

[0100] 13, the stud restraint may be fixed to the brace 13 rather than to the deformed stud 12. In this case, the stud restraint 6C has a base portion 61 that is fixed to the side surface 13b of the brace 13 with a fastening member 73, an engagement portion 62 that contacts and engages with the indoor-side surface portion (surface-side portion) 121 of the deformed stud 12, and a connecting portion 63 that contacts both the general portion 32 and the weak portion 31 of the deformed stud 12 and connects the base portion 61 and the engagement portion 62. In this example, deformation of the stud 12 in the indoor direction S2 can be suppressed.

[0101] Note that each modification of one embodiment may be applied as a modification of another embodiment, as appropriate.

[0102] The scope of the present invention is defined by the claims, rather than the above description, and is intended to include all modifications within the meaning and scope of the claims. [Explanation of symbols]

[0103] 1 exterior wall, 11 column, 12 stud, 121 surface portion, 122 side portion, 123 lip portion, 125 short side portion, 13 brace member (brace), 13a upward inclined surface, 14 runner, 21 wall material, 22 exterior wall panel, 23 panel frame, 24 heat insulating material, 25 exterior base, 26 exterior material, 31 weak portion, 32 general portion, 6 stud restraint, 61 base portion, 62 engagement portion (clamping member), 624 inclined portion, 625 extension portion, 625a inner surface, 625b convex portion, 625c folded portion, 63 connecting portion, 64 through hole, 66 ear portion, 71, 72, 73 fastening member, 91 screw, A11 outdoor direction, A12 indoor direction, C intersection portion, C1 Top, S1 outdoor side, S2 indoor side

Claims

1. a brace member disposed at an angle relative to the vertical direction; A deformed stud is a stud to which a wall material is attached on the surface side, the deformed stud having a weak portion at an interference portion with the brace member; a stud restraint device that is disposed at an intersection where the brace member and the weak portion of the deformed stud intersect and that suppresses out-of-plane deformation of the deformed stud; The stud restraint is a base portion fixed to the profiled stud and one of the brace members; an engaging portion that is arranged in contact with or in proximity to at least one of the front side portion and the back side portion of the other member of the deformed stud and the brace member, and engages with the other member; a connecting portion connecting the base portion and the engaging portion;

2. The base portion is fixed to a side surface of the profiled stud by a fastening member, The wall structure of claim 1 , wherein the engagement portion engages the brace member.

3. The base portion is disposed across the weak portion of the profiled stud and a general portion located above or below the weak portion, The wall structure according to claim 2 , wherein the fastening members connect and fix upper and lower ends of the base portion to the weak portion and the general portion.

4. The wall structure according to claim 2 or 3, wherein the engaging portion is configured by a clamping member that clamps the brace member in a front-to-back direction.

5. the clamping member includes an inclined portion that extends along the inclination direction of the brace member and is placed on an upper inclined surface of the brace member, The wall structure according to claim 4 , wherein the connecting portion connects a lower end of the base portion and a lower end of the inclined portion.

6. The wall structure according to claim 5 , wherein the clamping member includes a pair of extending portions facing each other in the front-to-back direction, and the extending portions have convex portions on inner surfaces.

7. The wall structure according to claim 5 , wherein the clamping member includes a pair of extending portions facing each other in the front-to-back direction, the extending portions being formed so as to approach each other as they move away from the inclined portion.

8. 2. The wall structure according to claim 1, wherein the plate thickness of the stud restraint is 2.0 mm or more.

9. The wall structure according to claim 4 , wherein the clamping member includes a pair of extending portions facing each other in the front-to-back direction, and an anti-slip member is provided on an inner surface of the extending portion on the rear side.

10. The wall structure according to claim 5 , wherein the stud restraint further includes a spacing retaining portion that maintains a spacing between the base portion and the inclined portion.

11. The structure according to claim 2 , wherein the engaging portion is constituted by a surrounding member that surrounds the periphery of the brace member.

12. A stud restraint device applied to a deformed stud having a weak part at the interference part with a brace member arranged at an angle with respect to the vertical direction, a base portion fixed to the profiled stud and one of the brace members; an engaging portion that is arranged in contact with or in proximity to at least one of the front side portion and the back side portion of the other member of the deformed stud and the brace member, and engages with the other member; a connecting portion that connects the base portion and the engagement portion.

13. A stud restraint device applied to a deformed stud having a weak part at the interference part with a brace member arranged at an angle with respect to the vertical direction, a base portion fixed to the profiled stud; an engaging portion that is arranged in contact with the front surface side portion and the back surface side portion of the brace member and engages with the brace member; a connecting portion that connects the base portion and the engagement portion, The engaging portion is configured by a clamping member that clamps the brace member in a front-to-back direction, A stud restraint device having a plate thickness of 2.0 mm or more.

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