JP2002138599A - Gusset plate for bearing wall and structure for fitting the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gusset plate for a bearing wall and a structure for fitting the same by which difference in level caused at the corner of the bearing wall can be reduced as much as possible. SOLUTION: A gusset plate 10 including a cut-off section 32 is fitted on a corner part 14 of a bearing wall 12. More precisely, the gusset plate 10 is fixed on the outer face of a pillar 18 by screws 30 at its horizontal side 34 and also on the inner face of a top frame 20 or a bottom frame 22 by the screws 30 at its vertical side 36. With this attachment structure, as the outer face of the pillar 18 where the gusset plate 10 is fixed is on the same level with the inner face of the frame 20 or 22 where the gusset plate is fixed, a step with the thickness of the gusset plate 10 is caused between the horizontal side 34 and vertical side 36. Therefore, when a brace 16 is attached on the gusset plate 10, the thickness of the brace 16 is absorbed in the step on the gusset plate 10. Thus, the gusset plate 10 can reduce the difference in level caused by the multi-layered materials on the corner of the bearing wall, so that the wall panel rarely suffers the problems of unevenness or warping.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gusset plate of a load-bearing wall and a mounting structure thereof, and more particularly, to a structure such as a steel house, which is attached to a corner portion of the load-bearing wall to attach a breath for mounting. The present invention relates to a gusset plate and its mounting structure.

[0002]

2. Description of the Related Art A conventional gusset plate 1 of this type shown in FIG. 8 is formed of a rectangular steel plate and is attached to four corners 3 of a load-bearing wall 2 of a building such as a steel house. Specifically, drilling tapping screws (hereinafter simply referred to as “screw”) are provided on the outer surfaces of the pillar 4 and the frame 5.
6 was fixed. Thus, a pair of crossed breaths 7 are fixed to the four fixed gusset plates 1 with the screws 6.

[0003]

However, in this prior art, the gusset plate 1 is mounted on the outer surfaces of the pillars 4 and the frame 5 and the breath 7 is mounted on the gusset plate 1, so that the gusset plate 1, the screws 6 and The thickness was formed by the breath 7. That is, when these members overlap each other, the load-bearing wall 2 (post 4
And the local part of the frame 5) had protruded. Therefore, when a wall plate such as a structural plywood or a gypsum board is attached to the outer surface of the load-bearing wall 2, there is a problem in that the wall plate may be uneven, bent, or cracked.

In order to avoid this, an adjusting plate is interposed between the wall plate and each member so as to eliminate a step due to the projection. However, since the step is large, a large number of adjusting plates are interposed at appropriate positions. Had to be inserted. That is, installation of the wall plate was troublesome.

SUMMARY OF THE INVENTION Accordingly, it is a primary object of the present invention to provide a gusset plate of a load-bearing wall and a mounting structure for the gusset plate capable of minimizing a protrusion generated locally at the load-bearing wall.

[0006]

A first aspect of the present invention is a gusset plate of a load-bearing wall attached to a corner of a load-bearing wall for attaching a breath, and corresponds to a joint between a column and a frame of the load-bearing wall. It is a gusset plate of a load-bearing wall with a notch formed at a location.

A second invention is a mounting structure for a gusset plate of a load-bearing wall using the gusset plate of a load-bearing wall according to the first invention, wherein the gusset plate has a lateral end on the side where a notch is formed. Is fixed to the outer surface of the pillar, and the longitudinal end on the side where the notch of the gusset plate is formed is fixed to the inner surface of the frame.

[0008]

The notch is formed in the gusset plate of the present invention. The gusset plate is attached to a corner of the load-bearing wall of the steel house, and the gusset plate is attached with a pair of cross-braces. Specifically, the lateral end of the gusset plate where the notch is formed is in contact with the outer surface of the column, and the vertical end of the side where the notch is formed is inserted into the inner surface of the frame. The lateral end is fixed (fixed) to the outer surface of the column and the vertical end is fixed to the inner surface of the frame by, for example, a drilling tapping screw. In such a mounting structure, a step is formed on the gusset plate. That is, a part of the surface of the gusset plate abuts against the inner surface of the frame, a part of the back surface of the gusset plate abuts against the outer surface of the column, and the inner surface of the frame and the outer surface of the column are provided on the same plane. Therefore, the gusset plate is deformed by its own thickness, and a step is formed.
For example, when the breath is formed of a steel plate having the same thickness as the gusset plate, the thickness of the breath can be absorbed by the step.

In the case where the locking portion is provided continuously from the lateral edge, when the gusset plate is attached, the locking portion is locked to the outer surface of the pillar.
Positioning is easy. That is, the gusset plate can be easily attached.

[0010]

According to the present invention, since the thickness of the breath can be absorbed, the protrusion generated on the outer surface of the load-bearing wall can be reduced as much as possible. Therefore, it is possible to prevent the wall plate attached to the outer surface of the load-bearing wall from being uneven or bent, and to prevent the wall plate from being cracked. Further, since the number of adjusting plates can be reduced, the mounting of the wall plate is relatively simple.

The above objects, other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, a gusset plate 10 of a load-bearing wall of this embodiment is attached to a corner 14 of a load-bearing wall 12 provided in, for example, a steel house. Can be In this embodiment, the load-bearing wall 12 includes a column 18, an upper frame 20, and a lower frame 22.
And studs 24.

As shown in FIG. 2, the column 18 is composed of a double stud in which two studs (lip channels) 18a and 18b are joined to each other on the back side of the web, and as shown in FIG. Are arranged at both ends (left and right ends) in the horizontal direction (lateral direction).

In FIG. 2, only the lower end of the column 18 and a part of the lower frame 22 are shown for simplicity, but the upper end of the column 18 is configured similarly to the lower end.

The upper frame 20 and the lower frame 22 are made of tracks (channel steel), and are disposed at both ends (upper and lower ends) of the load-bearing wall 12 in the vertical direction (vertical direction). This upper frame 2
2, the inner surfaces (grooves) of the lower frame 22 and the lower frame 22 are formed to have a width capable of accommodating the upper and lower ends of the column 18, and the left and right ends of the upper frame 20 and the lower frame 22 The ends are each inserted. Then, the flange 26 of the column 18 and the flanges 28 of the upper frame 20 and the lower frame 22 are fixed (fixed) with a drilling tapping screw (hereinafter simply referred to as “screw”) 30.

Returning to FIG. 1, the stud 24 is formed of one stud, and is disposed substantially at the center of the two posts 18. The upper and lower ends of the studs 24 are also inserted into substantially the centers of the upper frame 20 and the lower frame 22, respectively, similarly to the columns 18, and the screws 3
Fixed by 0.

The gusset plate 10 is a column for forming a steel house such as a lip channel steel and a channel steel.
8, as with the structural members such as the upper frame 20 and the lower frame 22,
It consists of a steel plate having a thickness of about 8 to 1.6 mm. As shown in FIG. 3, the gusset plate 10 is cut at one corner, and has, for example, a square shape (a rectangular shape in this embodiment).
Is formed. The width A of the notch 32 in the horizontal direction
Is set to be approximately the same as or slightly larger than the width of the column 18 (the width of the two flanges 26), and the vertical width B of the notch 32 is approximately equal to the height of the upper frame 20 and the lower frame 22 (the width of the flange 28). Set to the same or slightly larger. The gusset plate 10 is attached to the corner 14 of the load-bearing wall 12 as described above. Specifically, as can be clearly understood from FIG.
Lateral end on the side where the notch 32 is formed (lateral end)
34 is in contact with the outer surface of the flange 26 of the column 18 and the screw 3
Fixed at 0. A vertical end (vertical end) 36 on the side where the notch 32 is formed abuts against the inner surface of the flange 28 of the lower frame 22 (or the upper frame 20), and is fixed with the screw 30.

Returning to FIG. 1, a pair of breaths 16 made of a strip-shaped steel plate are attached to the gusset plate 10 attached to the corner portion 14 of the load-bearing wall 12. Specifically, the breath 16 is arranged so as to connect the gusset plates 10 located on the diagonal of the load-bearing wall 12, that is, is arranged in a cross-over manner, and the end of the breath 16 is screwed to the outer surface of the gusset plate 10. Fixed to

When attaching the gusset plate 10 to the corner 14 of the load-bearing wall 12, for example, the notch 32
The lateral end 34 is arranged on the outer surface side of the column 18 so as to be located at the junction between the upper frame 20 (or the lower frame 22) and the vertical end 36 is connected to the upper frame 20 (or the lower frame 22). ) Slot. Next, positioning is performed such that the edge of the lateral end 34 and the outer surface of the pillar 18 (the lip 38 of the outer stud 18a) substantially match in the mounted state. Subsequently, the lateral end 34 is brought into contact with the outer surface of the column 18 and the screw 30 is driven into a predetermined position from the outer surface. Then, the vertical end 36 is connected to the flange 28 of the upper frame 20 (or the lower frame 22).
Then, the screw 30 is driven into a predetermined position from the outer surface side.

In this manner, when the gusset plate 10 is attached to the corner portion 14 of the load-bearing wall 12, the outer surface of the column 18 on which the gusset plate 10 is attached and the upper frame 20 (or the upper frame 20 on which the gusset plate 10 is attached). Since the inner surface of the flange 28 of the lower frame 22) is provided on the same plane, the vertical end portion 36 is opposed to the upper end portion 20 (or the horizontal end portion 34 fixed to the outer surface of the column 18). It is slightly curved (deformed) on the inner surface side of the flange 28 of the lower frame 22).

That is, such a gusset plate 10
In the mounting structure described above, a step is formed on the gusset plate 10 as can be clearly understood from FIG. Specifically, a part of the back surface 40 of the gusset plate 10 is in contact with the outer surface of the column 18, and a part of the front surface 42 of the gusset plate 10 is in contact with the inner surface of the upper frame 20 or the lower frame 22 (flange 28). Therefore, a step corresponding to the thickness of the gusset plate 10 is formed on the gusset plate 10.

In FIG. 4, the screw 30 is omitted for easy understanding. In FIG. 4, the columns 18, the upper frame 20, and the lower frame 22 are described with the left side as the outer surface and the right side as the inner surface. As for the gusset plate 10, the left main surface is the front surface 42 and the right side is the right surface. The main surface is described as the back surface 40. However, when the gusset plate 10 is attached to the lower left and upper right corners 14 of the load-bearing wall 12 shown in FIG. 1, the front surface 42 and the rear surface 40 shown in FIG. That is, surface 4
A part of the second member abuts on the outer surface of the pillar, and a part of the rear surface abuts on the inner surface of the upper frame 20 or the lower frame 22 (flange).

Therefore, for example, when the thickness of the breath 16 is substantially the same as the thickness of the gut plate 10,
As shown in FIG. 4, the outer surface of the lateral end 34 of the gusset plate 10 and the outer surface of the breath 16 are provided substantially on the same plane. That is, the thickness of the breath 16 can be absorbed by such a mounting structure of the gusset plate 10.

According to this embodiment, the gusset plate 1
Since the thickness of the breath 16 is absorbed by the step formed at zero, it is possible to reduce as much as possible the protrusion that occurs locally at the load-bearing wall 12 due to the overlapping of the members. For this reason,
As shown in FIG. 4, when a wall plate 44 (such as a structural plywood or a gypsum board) is attached to the load-bearing wall 12,
The wall plate 44 is unlikely to have irregularities or bends, and can prevent the occurrence of cracks.

Further, since the number of adjustment plates used to eliminate a step due to protrusion when mounting the wall plate 44 can be reduced, the wall plate can be mounted relatively easily. That is, workability at the site is improved.

The gusset plate 10 has a notch 32
, The manufacturing cost does not increase significantly.

In the above-described embodiment, the square notch 32 is formed, but the shape of the notch 32 is not limited to this. For example, it may be formed in a triangular shape as shown in FIG.
It may be formed in a substantially quarter elliptical shape as shown in FIG. When the notch 32 is formed in such a shape that the cut surface is not suddenly changed, stress concentration due to the notch 32 can be reduced. That is, it is possible to prevent the gusset plate 10 from being damaged.

As shown in FIGS. 6A and 6B, a locking portion 46 is formed to continuously rise from the edge of the lateral end 34 of the gusset plate 10 to the column 18 side. It may be. In this case, as shown in FIG. 7, when the gusset plate 10 is mounted on the corner portion 14 of the load-bearing wall 12, the locking portion 46 is locked on the outer surface of the column 18 to easily position the gusset plate. be able to. That is, the workability can be further improved.

However, since the gusset plate 10 is attached with at least one of the upper, lower, left and right directions different depending on the corner 14 to be attached, FIG.
As shown in FIGS. 6A and 6B, it is necessary to prepare two types of gusset plates 10 in which the locking portions 46 having different rising directions are formed.

In this case, it is needless to say that the shape of the notch 32 may be appropriately changed.

[Brief description of the drawings]

FIG. 1 is a front view showing a load-bearing wall to which an embodiment of the present invention is applied.

FIG. 2 is a perspective view showing a part of the load-bearing wall of the embodiment shown in FIG. 1;

FIG. 3 is a front view showing the gusset plate of the embodiment in FIG. 1;

FIG. 4 is an illustrative view showing a part of a load-bearing wall of the embodiment in FIG. 1;

FIG. 5 is a front view showing another example of the gusset plate of the present invention.

FIG. 6 is an illustrative view showing another example of the gusset plate of the present invention;

FIG. 7 is a perspective view showing a part of a load-bearing wall to which the gusset plate shown in FIG. 6 is applied.

FIG. 8 is a front view showing a load-bearing wall to which a conventional gusset plate is applied.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Gusset plate of load-bearing wall 12 ... Load-bearing wall 14 ... Corner 16 ... Breath 18 ... Column 20 ... Upper frame 22 ... Lower frame 30 ... Drilling tapping screw 32 ... Notch 34 ... Horizontal end 36 ... Vertical end 44 … Wall plate 46… locking part

Claims (3)

[Claims] 1. A gusset plate of a load-bearing wall attached to a corner of a load-bearing wall for attaching a breath, wherein a notch is formed at a position corresponding to a joint between a column and a frame of the load-bearing wall. Gusset plate. 2. The gusset plate of a load-bearing wall according to claim 1, further comprising a locking portion provided continuously from an edge on a side where the notch is formed and locked to an outer surface of the pillar. 3. A mounting structure for a gusset plate of a load-bearing wall using the gusset plate of a load-bearing wall according to claim 1, wherein a lateral end of the gusset plate on the side where the notch is formed is formed. A mounting structure for a gusset plate having a load-bearing wall, wherein the gusset plate is fixed to an outer surface of a pillar, and a longitudinal end of the gusset plate on the side where the notch is formed is fixed to an inner surface of the frame.