JP3409137B2 - Bearing wall structure of wooden frame - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a load bearing wall of a wooden frame structure capable of improving the structural bearing capacity of a wooden building, and particularly to a load bearing wall structure of a wooden frame structure capable of increasing the wall ratio of the load bearing wall. It is about.

[0002]

2. Description of the Related Art Buildings are required to have a certain structural strength to withstand earthquakes and typhoons, but wooden structures are required to maintain horizontal strength such as earthquakes and typhoons in order to maintain structural strength. The so-called bearing wall that resists against electricity is often used. There is a wall magnification as a criterion for judging the strength of a wall, but in order to increase the wall magnification, for example, a bracing or the like is arranged, its size is changed, or it is used as a cross. There is.

[0003]

However, if, for example, the size of the braces is increased, or if the braces are crossed, the wall magnification increases, but the material cost is high, and the man-hours are also extra, resulting in a high construction cost. There was a problem that Further, even if the wall structure of the wall is increased, the resistance of the wall is increased, but the construction cost is increased. Then, while continuing various researches, the inventor of the present application found that the wall magnification of the load bearing wall can be dramatically improved by using a special connecting fitting in the wooden frame, and completed the present invention. It is a thing. The present invention has been made in view of such circumstances, and an object of the present invention is to provide a load bearing wall structure capable of increasing the strength of a wall without changing the structure itself of the load bearing wall in the wooden frame. is there.

[0004]

The present invention, which has been made to achieve such an object, is configured as follows. A A load-bearing wall structure in a wooden framework in which braces are arranged in an oblique line direction that passes through the corners where columns and horizontal members or columns and bases intersect, and a specified size for the base or horizontal members. The metal base plate is attached, and the pillars are attached at right angles to the base plate, and the base plate is made larger than the cross section of the pillar in the longitudinal direction of the base or the cross member and the pillar is attached. It has a long hole part that does not hinder the fitting of the tenon to the tenon of the base or the horizontal member, and further, at the parts near the both ends of the pedestal plate protruding from the side of the pillar, metal A pair of L-shaped metal fittings each having a bottom surface and an elevation surface formed by bending the plate at a right angle are arranged, and the bottom surface and the elevation surface are in contact with the surface of the pedestal plate and the side surface of the column, respectively. Then attach And a pair of L-shaped metal fittings or one of the L-shaped metal fittings, in which a metal plate-made vertical surface portion, side surface portion, and bottom surface portion are connected to each other at right angles to each other. Brackets are arranged and attached so that their side and bottom parts contact the elevation and bottom of the L-shaped bracket, respectively, and braces are attached to the outside of the elevations of the braces. Further, a pair of hole down metal fittings are arranged on both sides of the pillar, and the hole down metal fittings are provided with pulling bolts and pulling metal fittings that can be engaged by inserting the pulling bolts. And a mounting portion having a bolt hole for mounting on the pillar, and the tensile bolt is arranged to be separated from the bottom surface of the mounting portion by a predetermined distance. For the bolt hole of the hole down bracket mounting part Insert the tightening bolt through the bolt insertion hole that penetrates the pillar, and fix one end of the hole-down fitting by tightening with a nut, and insert the tension bolt through the bolt insertion hole that penetrates the base or horizontal member. By tightening with nuts, the pillar and the base, and the pillar and the horizontal member are fixed.
Moreover, the bearing wall structure of the wooden frame is such that the pedestal plate, the L-shaped bracket and the bracing bracket are formed with long holes through which the tension bolts of the hole-down bracket can be inserted. In the load bearing wall of the wooden frame described in the item B A, the pillar is a through pillar arranged in a projecting corner where the bases are combined at right angles, and the pedestal plate is predetermined in the longitudinal direction of each base from the cross section of the through pillar. It has a hook-like shape that is elongated, and the L-shaped metal fittings are respectively arranged on both parts protruding from the lower end of the through column of the pedestal plate, and braces are attached on each L-shaped metal fitting through bracing metal fittings. Further, the hole down metal fitting is arranged on each side surface portion where the L-shaped metal fitting of the through pillar is to be provided, and the through pillar is fixed to each base. In the load bearing wall structure of the wooden frame described in the item C A, the column is a tube column, the horizontal member is a barrel difference, the pedestal plate is attached to the lower surface side of the barrel difference, and the pedestal plate protrudes from the column. The above-mentioned L-shaped metal fittings and bracing fittings are attached to both parts downward, and the bracing fittings of the wooden frame are constructed so that the bracings are attached by the bracing fittings. In the load bearing wall structure of the wooden frame described in the paragraph D A, the horizontal member is a barrel difference, and as the columns, two pipe columns are arranged above and below the barrel difference, and the pedestal plate is an upper surface side of the barrel difference. The L-shaped metal fittings and the bracing metal fittings are attached upward to both parts of the pedestal plate which are attached to the lower side of the barrel difference and are attached to the lower side of the body difference, and the pedestal protruding from the lower column of the body difference. The L-shaped metal fittings and the bracing fittings are attached to both parts of the plate downward, and the bracing fittings are attached upward and downward by the respective bracing fittings, and the hole down fittings arranged on both sides of the upper and lower pipe columns are the above-mentioned. A wooden wall bearing wall structure in which pulling metal fittings are attached to the upper and lower pipe columns and tightened with tension bolts to integrally fix the upper and lower pipe columns and the body difference. In the load bearing wall structure of the wooden frame according to the item EA, the column is a through column provided at a projecting corner portion, and the horizontal member is a first barrel difference and a second barrel difference that form a right angle with each other. The plate is attached to each side surface of the through column where the first barrel difference and the second barrel difference are in contact with the through column at the projected corner, and the L-shaped metal fittings are provided at the upper and lower corners where the first barrel difference and the through column intersect. And brace brackets are attached, and each brace bracket is used to attach the brace vertically, and the L-shaped brackets and brace brackets are attached to the upper and lower corners where the second body difference and the through column intersect, and each brace is attached. The braces are attached in the vertical direction by the metal fittings, and the hole-down fittings are provided between the first barrel difference and the through pillar, and between the second barrel difference and the through pillar, fixing the through pillar and the first barrel difference and the second barrel difference. The load bearing wall structure of the wooden frame. In the load bearing wall structure of the wooden frame described in F A to E,
A wooden wall bearing wall structure in which screw holes for attaching the pedestal plate, the L-shaped metal fittings, and the bracing metal fittings are conical trapezoidal and the tip of the inner hole is sharpened. In the bearing wall structure of the wooden frame described in G A to F,
A load bearing wall structure of a wooden frame, wherein the L-shaped metal fittings and the bracing metal fittings are formed by bending or other methods. In the load bearing wall structure of the wooden frame described in H A to G,
Instead of the hole-down fittings, a pair of battledore bolts formed by welding the tensile bolt tips to the battledore having bolt holes are arranged on both sides of the pillar, and the fastening bolts passed through the bolt holes of the battledore are used to form the pillar. One end of the battledore bolt is fixed by inserting it through the through bolt insertion hole and tightening it with a nut, while the other end is inserted through the bolt insertion hole that penetrates the base or the horizontal member and is tightened with a nut. Frame bearing wall structure. IA In the wooden frame bearing wall structure described in paragraph A or B, use anchor bolts planted on the foundation of the foundation instead of the tension bolts of the hole down fittings for connecting the foundation and the pillar. Load-bearing wall structure of a wooden frame.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings in which embodiments of the present invention are described. FIG. 1 shows an embodiment of a shaft assembly in which braces are arranged on both sides of the lower end of a pipe column erected on a base. As shown in FIG. 1, pipe columns 6 are erected on a base 2 with a base plate 4 therebetween. As shown in FIG. 2 (a), the pedestal plate 4 is made of a rectangular steel plate, and has a rectangular-shaped central portion that does not hinder the insertion of the tenon at the lower end of the tube column 6 into the mortise hole of the base 2. It is a member in which the hole 8 is formed, and is attached to the base 2. The pipe column 6 is erected in a state where the tenon provided at the lower end of the pipe column 6 is fitted into the mortise hole of the base 2.
L on both sides of the base plate 4 protruding from both sides of
The bracket 10 is arranged. L-shaped metal fitting 10 is shown in Figure 2.
As shown in (b), a steel plate having a predetermined width is bent at a right angle to form a bottom surface portion 12 and an upright surface portion 14. The bottom surface portion 12 is on the upper surface portion of the pedestal plate 4, and the upright surface portion 14 is It is attached so as to be in contact with the side surface of the pipe column 6.

Further, bracing metal fittings 16 are attached on both L-shaped metal fittings 10. Braces 16 are shown in Figure 2.
As shown in (c), it is a member made of a steel plate having a bottom surface portion 18, a side surface portion 20, and an upright surface portion 22 which are at right angles to each other, and the bottom surface portion 18 and the side surface portion 20 are respectively L-shaped metal fittings 1.
It is attached to the bottom surface 12 and the vertical surface 14 of 0. Then, the braces 24 and 26 are attached to the outside of the upright portion 22 of each bracing metal fitting 16, and the pipe column 6 is tightened by a pair of hole down fittings 28 arranged on both sides thereof, It is firmly attached to the base 2. The hole-down fitting 28 is shown in Fig. 2 (d).
As shown in FIG. 3, the pulling bolt 30 and the pulling metal fitting 32 with which the pulling bolt 30 can be engaged are provided, and the pulling metal fitting 3 is provided.
2 is a bolt hole for bolting itself to the pipe column 3
3 and a bolt engaging portion 3 provided with an insertion hole for the tensile bolt 30 at a predetermined height from the mounting portion 34.
6 and 6. In this embodiment, the pulling fitting 32
Is a steel plate that is press-formed, but the plate thickness, shape, etc. are determined so as to ensure sufficient strength.

The pair of hole-down fittings 28 arranged on both sides of the pipe column 2 are attached by tightening bolts 40 inserted into through holes penetrating the pipe column 6 and bolts of the pulling metal fittings 32 at both ends thereof. It is passed through the hole 33, bolted, and firmly fixed. Both hole down metal fittings 2
The washer 42 is fitted on the head side of the tensile bolt 30 of No. 8 and is inserted from the lower surface side of the base into the through holes penetrating the base 2 respectively. Tightened with nuts. As a result, the pipe column 6 is firmly attached to and bonded to the base 2. It should be noted that the vicinity of the head of the tensile bolt 30 on the lower surface side of the base 2 is slightly counterbored. Installation of the tension bolt 30 is shown in Fig. 2.
The direction is opposite to that shown in (d).

As shown in FIGS. 2A to 2C, the pedestal plate 4, the L-shaped metal fitting 10 and the bracing metal fitting 16 are provided with elongated holes 44, 46 and 48, respectively, and the tensile bolt 3 is provided.
It is designed so as not to interfere with the installation of 0. The braces 24 and 26 are thick in cross-sectional dimension and are 1/2 to 1 of the pipe column 6.
The width is about ⅓, and the width is about the same as or slightly smaller than that of the tube column 6, and the tip portion has a sharp angle with an included angle of about 90 degrees, and both end surfaces of the tip portion are L-shaped. It is configured to contact the inner surface of the metal fitting 10. Although screw nails are used to attach the connection fittings such as the pedestal plate 4, the L-shaped fittings 10, and the brace fittings 16 to the base, pipe pillars, braces, etc., the screw nail holes 50 provided in each member are shown in FIG. ) And (b), they have a truncated cone shape.

As the screw nail, for example, a screw nail having a diameter of 5 mm and a pitch of about 3.5 mm is used, but the depth of the thread trough is about 0.8 mm, and the corner of the inner hole of the screw nail hole 50 is used. Since the part of can be in the part of the root of the screw, it is twice as large as about 1.6 mm on both sides of the screw.
0, the movement adjustment of the brace 16 can be performed. In other words, if the deflection of both of the inner holes of the screw nail holes 50 in contact with the valleys of the screw nails 51 is δ, the total movement amount is 2δ.
Becomes

The screw nail hole is generally a straight hole except for the portion where the head of the screw nail directly contacts, and a predetermined gap is usually provided between the screw nail outer diameter and the screw nail hole. However, since it has a truncated cone shape as described above, there is an advantage that the movement adjustment range of each member such as the pedestal plate can be increased even if the gap is the same. When the L-shaped metal fitting 10 is stacked on the pedestal plate 4 or the bracing metal fitting 16 is further stacked thereon, the screw nails are inserted into the screw nail holes provided at the same relational positions of the respective members, and screwed into the screw nail holes. The members are attached integrally.

For example, when the L-shaped metal fitting 10 is mounted on the pedestal plate 4 in a stacked manner, the L-shaped metal fitting 10 has a raised surface portion 1 thereof.
4 is placed on the pedestal plate 4 in a state in which 4 is in contact with the pipe column 6, and L
After fitting the screw nail holes provided at the same position on the bracket 10 and the pedestal plate 4 respectively, and inserting the screw nails, they can be integrally mounted, but in reality, due to variations in the dimension of the pillars and hole drilling errors, etc. Since the portion 14 does not come into contact with the tube column 6 and a gap may be formed so that strong attachment may not be possible, it is necessary to finely adjust the relative attachment position between each member. In such a case, as shown in FIG. 3C, since each screw nail hole 50 is frustoconical in the shape of a truncated cone, it is moved and adjusted in the horizontal direction as compared with a normal straight screw nail hole. The advantage is that the range can be widened. That is, since the tip of the inner hole of the screw nail hole 51 can enter the valley of the screw nail 50, the adjustment range becomes large. Since the tip of the inner hole of the screw nail hole 50 can enter the valley of the screw nail 51, the adjustment range becomes large. The adjustment may be performed by loosening the screw nail 51, moving and adjusting each member within a range of clearance of the screw hole and the screw nail, and then tightening the screw nail. The same applies when the bracing metal fitting 16 is further stacked on the L-shaped metal fitting 10.

In the embodiment configured as described above,
For example, when a horizontal force is applied to the pipe column 6 rightward due to an earthquake or a typhoon, the other ends of the braces 24, 26 are
Since the braces 24 are connected to the upper cross member, a tensile force is applied to the braces 24 and a compression force is applied to the braces 26 (if the forces applied to the pipe columns 6 are reversed, the tensile force, The compression force is also reversed), but the tip of each brace 24, 26 is a brace fitting 16
It is firmly fixed to, and the bracing bracket 16 is an L-shaped bracket 1
0, since it is fixed to the pipe column 6 and the base 2 via the pedestal plate 4, the resistance to the tensile force and the compressive force increases, and the deformation and damage are less likely to occur. In addition, the pedestal plate 4, L-shaped metal fittings 10, between the frame members such as columns, bases, braces, etc.
Since the metal members such as the brace 16 are arranged, the deformation and damage caused by the end of the pillar or the brace biting into the base, the body difference, or the like is less likely to occur. Further, the hole-down fitting 28 for fastening and fixing the pipe pillar 6 to the base 2 is provided with the pull-down fitting 3 for engaging the pulling bolt 30 thereof.
0 is firmly fixed to the pipe pillar 6 by a tightening bolt 40 penetrating the pipe pillar 6, and further, L-shaped metal fittings 10 contacting the side surface of the pipe pillar 6 and the upper surface of the base 2 are provided on both sides of the lower end of the pipe pillar 6. Since it is attached, it is difficult for the tube column 6 to be disengaged from the base 2 or to be distorted in the direction in which the tube column 6 falls. Further, in the bracing metal fitting 16 mounted on the L-shaped metal fitting 16, the upright surface portion 22 acts as a rib between the bottom surface portion 12 and the upright surface portion 14 of the bracing metal fitting 16, and the pipe pillar 6 falls down. Helps prevent directional distortion. Therefore, as a result of these actions being weighted, the strength of the wall is greatly improved.

FIG. 4 shows an embodiment of a frame assembly in which braces are arranged in the plane direction including the bases at the lower end of a through column which is erected in the projecting corner where the bases are assembled at right angles. The members used in the above-mentioned embodiment that do not need to be changed are designated by the same reference numerals and detailed description thereof will be omitted. (The same applies to the following.) In FIG. 4, reference numerals 54 and 56 are bases assembled at right angles, through columns 58 are provided upright at the corners of the bases, and the bases 54 and 56 are faced at their lower ends. Braces 60 and 62 are arranged on the side. Both bases 54, 56
A hook-shaped pedestal plate 64 made of a steel plate as shown in FIG. 2 (e) is attached to the corner where the crosses, and a through column 58 is attached to the base with this pedestal plate 64 separated.

The pedestal plate 64 is provided with a rectangular elongated hole 66 for preventing the tenon of the lower end portion of the through column 58 from being fitted into the mortise hole of the base 54, and the through column 58 of the pedestal plate 64. As in the case of the above-mentioned embodiment, the L-shaped metal fitting 1 is attached to the portion protruding from each base direction.
0 is arranged, and bracing metal fittings 16 are further arranged thereon, and they are attached and fixed to the base and the through post 58 by screw nails, respectively. Then, the braces 60 and 62 are attached to the outside of the upright portion 14 of the bracing metal fitting 16. The hole-down fitting 28 is attached to the side of the through-column 58 that faces each base, and the pull-down fitting 32 is attached to the through-column 58 by a tensile bolt 40 that penetrates the through-column. An anchor bolt 68 planted on the foundation of the base is used instead of the tensile bolt 30 of the above-mentioned embodiment. 67 is a long hole for inserting the anchor bolt 68,
70 is a cushion material. The attachment of each member is performed with a screw nail in the same manner as in the above embodiment. As described above, this embodiment is different from the above-mentioned embodiment in that the surface including each bracing has a right angle, but there is not much difference other than that, and since the same configuration is adopted, There is an advantage that the strength of the wall can be improved as in the above-mentioned embodiment.

In FIG. 5, a barrel difference 74 as a horizontal member is arranged at the upper end of the tube column 72 with the pedestal plate 4 being interposed therebetween.
An example of a framework in which braces 76 and 78 are arranged in the lower corners will be shown. The connection between the tube column 72 and the body difference 74 is
The tenon of the tube column 72 is fitted into the tenon of the body difference 74, and the pull-down metal fittings 32 of the hole-down metal fittings 28 arranged on both sides of the tube column 72 are tightened by the tightening bolts 4 penetrating the tube column 72.
It is carried out by mounting it at 0, and then tightening and fixing it with a tensile bolt 30. The L-shaped metal fitting 10 and the bracing metal fitting 16 are attached to both corners of the joint portion of the body gap 74 and the pipe post 72, and the bracing materials 76 and 78 are attached to the bracing metal fitting 16, respectively. This is the same as the case where the base 2 and the pipe pillar 6 shown in FIG. However, the difference is that the vertical direction is reversed. As described above, this embodiment has no essential structural difference from the above-described embodiment, and thus has an advantage that the strength of the wall is improved similarly to the above-described embodiment.

In FIG. 6, a body difference 84 as a horizontal member is arranged at the upper end of the first tube column 82 with the pedestal plate 4 being interposed therebetween. Pillar 86
And the braces 88 at the upper and lower corners,
An example of a frame set in which 90, 92, 94 are arranged and also a beam 96 in a direction perpendicular to the side of the barrel difference 84 is arranged is shown. The connection between the tube columns 82 and 86 and the body difference 84 is performed by the tube column 8
The tenons 2 and 86 are fitted into the upper and lower mortises of the barrel difference 84, respectively, and the hole down fittings 28 arranged on both sides of the tube columns 82 and 86 are used to form the tube column 82, the barrel difference 84, and the tube column 86.
This is performed by fixing each member in the same manner as in each of the above-mentioned embodiments.

L-shaped metal fittings 10 and bracing fittings 16 are attached to both corners of the joint between the body difference 84 and the tube columns 82 and 86,
On the upper side of the body difference 84, the braces 9 are attached to the braces 16 respectively.
The braces 88 and 90 are attached to the bracing metal fittings 16 on the lower side, respectively. The mounting procedure is the same as when the base 2 and the pipe column 6 shown in FIG. The same is true for the lower side of the barrel difference 84 as in the case where the barrel difference 74 and the tube column 72 shown in FIG. The beam 96 is coupled to the body difference 84 by joining the body difference 84 and the beam 96 by a predetermined joint structure and tightening and fixing with the battledore bolts 98 arranged on both sides of the beam 96.
The battledore bolt 98 has a bolt hole in the battledore portion, and a tightening bolt penetrating the beam 96 is passed through the bolt hole to fasten the beam 96, and the battledore portion is firmly welded to the bolt portion. . As described above, this embodiment also has no essential structural difference from each of the above-described embodiments, and thus has the advantage that the strength of the wall is improved similarly to the above-described embodiments.

In the above-described embodiment, the braces are arranged on both sides of the first pipe column and the second pipe column which intersect with the barrel difference, but the first barrel difference and the second barrel difference intersecting each other at right angles. It is also possible to join the above-mentioned to the through-column of the projecting corner part, and to provide a brace up and down in each surface including the first barrel difference and the through-column, and the second barrel difference and the through-column.

[Experimental example] The Tokushima Prefectural Forestry Technology Center uses the test body (wooden bearing wall) shown in FIG.
14 (Construction material and performance test method of its structural part)
The test was conducted according to. Figure 7 shows the test piece (wooden bearing wall).
The base 102, the body difference 104, the pillar 106,
The brace 108 is attached and configured. Base 102
Is a square bar having a cross section of 120 mm × 120 mm, and the body difference 104 is a square bar having a cross section of 120 mm × 150 mm, and the long sides of the cross section are arranged in the vertical direction. The pillar 106 is a square bar having a cross section of 120 mm × 120 mm, and the tenon (short tenon) protruding at both upper and lower ends thereof is fitted into the mortise holes of the base 102 and the body difference 104, and the base 102 and the body difference 104 are respectively inserted by the hole down fittings 28. Is integrally fixed to. Between the corner part where the lower end of one pillar 106 intersects with the base 102 and the corner part where the upper end of the other pillar 106 intersects with the body difference 104, a cross section of 45 mm × 100 mm wooden timber braces 1
08, but the same type of pedestal plate 4 and L-shaped bracket 1 as those used in the above-mentioned embodiment are provided at both ends of the braces 108.
Although 0 and the brace 16 are used, in the present experimental example, a steel plate having a plate thickness of 3.5 mm and having dimensions shown in FIG. 8 was used. A wall magnification was 6.3 when tested by a predetermined method using the above test body (wooden bearing wall). By the way, the wall ratio is specified by the Building Standard Law Enforcement Ordinance and the Ministry of Construction notification for each type of wall, but according to it, a bearing wall with braces is 1.0 if the braces are Onuki and 3 columns. In case of splitting 1.
5, 2.0 for two columns, and 3.0 for the same column size. By the way, in the above-mentioned test body, although the brace 108 is smaller than two columns, the wall magnification is more than 3 times the standard 2.0 in the case of the above two columns, and the strength of the wall is remarkably large. It was proved.

In the above embodiment, the pedestal plate, the L-shaped metal fittings and the bracing metal fittings are made of steel plates, but it is also possible to use metal plates other than steel plates. In addition, the braces may be used as a hook in the above embodiment. The wall magnification is twice the above, and the substantial strength of the wall is further improved. Although some embodiments of the present invention have been described above, the present invention is not limited to such embodiments, and it goes without saying that the present invention can be implemented in various modes without departing from the scope of the present invention. Is.

[0021]

Since the present invention is configured as described above, it has the following effects. Since the metal pedestal plate, L-shaped metal fittings, and bracing metal fittings are arranged around the end of the bracing, the bracing functions sufficiently, the wall ratio of the bearing wall is dramatically increased, and the strength of the wall is increased. improves. The reason for this is not clear, but it is understood as follows. That is, a metal pedestal plate is attached to the horizontal member or the base where the ends of the braces contact,
Metal L-shaped metal fittings are attached in contact with the side surfaces of the pedestal plate and the pillar, and bracing metal fittings are further mounted on the L-shaped metal fittings, and the end portions of the braces are attached by the bracing metal fittings. Therefore, when compressive force is applied to the brace due to horizontal force applied to the pillar, the end of the brace is firmly received by the metal brace fitting, L-shaped fitting, and pedestal plate. When the tensile force is applied to the braces, the ends of the braces are prevented from being damaged or deformed by preventing damage or deformation of the braces ends or the surrounding columns, foundations, horizontal members, etc. It is considered that the original function of the bracing can be exerted as a result of being restrained against the tensile force and at the same time preventing damage to the end portions of the bracing and its peripheral members.
When the pedestal plate, the L-shaped metal fittings, and the bracing metal fittings are integrally formed, if there is a dimensional error in the pillar, the base, the horizontal member, etc., a gap is generated between each of the above parts and the pillar, etc. Although it is considered that the above-described effects cannot be achieved, since the respective parts are made separately in the present invention, by finely adjusting the mounting position, the above-mentioned parts can be made into a column, a base, It can be attached to a horizontal member, and the above-mentioned effects can be achieved. Also, hole down metal fittings are used to connect the pillar and the base or the pillar and the horizontal material,
Although the structure itself is strong and the mounting to the column can be made to be sturdy by means of a tightening bolt penetrating the column, it is considered to be somewhat useful for improving the wall magnification. Each of the above-mentioned members is mounted by cutting a screw nail hole for mounting a pedestal plate, an L-shaped metal fitting, and a bracing metal fitting into a conical shape, and sharpening the inner tip of the nail hole to such an extent that it can enter the valley of the screw nail. The advantage is that the time adjustment range is increased.

[Brief description of drawings]

1A and 1B are a partial front view showing an embodiment of the present invention and an AA enlarged sectional view in the same figure.

2A to 2D are perspective views of components used in the embodiment.

3A and 3B are partially enlarged views of components used in the embodiment, and FIG. 3C is a schematic enlarged explanatory view.

4 (a) and 4 (b) are a partial front view and a partial plan view showing a part of another embodiment of the present invention.

5 (a) and 5 (b) are a partial front view showing still another embodiment of the present invention and a sectional view taken along line BB in FIG.

6 (a) and 6 (b) are a partial front view and a partial left side view showing a part of another embodiment of the present invention.

FIG. 7A is an explanatory view of a test body (bearing wall) used in an experimental example of the present invention, and FIG. 7B is a dimension table thereof.

8A to 8C are perspective views of each component used in the experimental example, and FIG. 8D is a dimension table thereof.

[Explanation of symbols]

2 foundation 4 pedestal plate 6 pillars 8 rectangular long holes 10 L-shaped metal fittings 16 braces 24 Muscle 26 Bound 28 hole down fittings 50 screw nail holes 54 foundation 56 foundation 58 through pillar 60 muscle 62 Bound 64 pedestal plate 67 long hole 68 Rectangular long hole 72 Tube post 74 Body difference 76 Bound 78 Muscle 82 pipe pillar 84 Body difference 86 columns 88 Muscle 90 Muscle

Claims (9)

(57) [Claims] 1. A load-bearing wall structure in a wooden frame structure in which braces are arranged in an oblique line direction passing through a corner portion where a column and a base cross, or a corner where the column and the base intersect, which is a base or a horizontal cross member. A pedestal plate made of a metal plate of a predetermined size is attached to the column, and columns are attached at right angles to each other with the pedestal plate being separated. In addition, it has a long hole that does not hinder the fitting of the tenon of the pillar with the tenon of the base or the horizontal member, and further approaches both ends of the pedestal plate protruding from the side of the pillar. A pair of L-shaped metal fittings, each of which has a bottom surface and an elevation surface formed by bending a metal plate at a right angle, are respectively disposed in the portions, and the bottom surface and the elevation surface are respectively the surface portion of the pedestal plate and the side surface of the pillar. To contact the department Further, on the pair of both L-shaped metal fittings or one of the L-shaped metal fittings, a standing portion, a side surface portion and a bottom surface portion made of a metal plate are continuously provided so as to be perpendicular to each other. A bracing metal fitting, which is attached so that its side surface and bottom surface are in contact with the elevation surface and the bottom surface of the L-shaped metal fitting, respectively, and the bracing metal is provided outside the elevation surface of the bracing metal fitting. Is attached, and on both sides of the pillar
A pair of hole-down fittings are arranged, and the hole-down fittings are provided with pulling bolts and pulling fittings capable of inserting and engaging the pulling bolts, and the pulling fittings allow the pulling bolts to be inserted. A bolt for mounting the hole-down fitting is provided, which has an engaging portion and a mounting portion provided with a bolt hole for mounting on a pillar, and the tension bolt is spaced from the bottom surface of the mounting portion by a certain distance. Insert the tightening bolt through the hole into the bolt insertion hole that penetrates the column, and tighten the nut to fix one end of the hole down fitting, and the tension bolt to the bolt insertion hole that penetrates the base or the horizontal member. The pillar and the base, the pillar and the horizontal member are fixed by inserting and tightening with nuts, and hole down fittings for each pedestal plate, L-shaped fitting and bracing fitting The bearing wall structure of the wooden frame which is formed with the long hole through which the tension bolt of the above can be inserted. 2. The load-bearing wall of a wooden frame according to claim 1, wherein the pillar is a through pillar arranged in a projecting corner portion where the bases are combined at right angles, and the pedestal plate is formed by a cross section of the through pillar. Has a hook shape that extends a predetermined dimension in the longitudinal direction of the base plate, and the L-shaped metal fittings are respectively arranged on both portions protruding from the lower end of the through column of the pedestal plate. A wooden frame load-bearing wall structure in which the braces are attached, and the hole-down fittings are arranged on the side surfaces where the L-shaped fittings of the through columns should be provided, and the through columns are fixed to the bases. 3. The load-bearing wall structure for a wooden frame according to claim 1, wherein the column is a tube column, the horizontal member is a barrel difference, and the pedestal plate is attached to a lower surface side of the barrel difference. The L-shaped metal fittings and the bracing fittings are attached to both sides of the pedestal plate protruding from above, and the bracing fittings are attached by the bracing fittings. 4. The load-bearing wall structure for a wooden frame according to claim 1, wherein the horizontal member is a barrel difference, and as the columns, two tube columns are arranged above and below the barrel difference, and the base plate is The L-shaped metal fittings and the bracing metal fittings are attached upward to both parts of the pedestal plate which are attached to the upper surface side and the lower surface side of the body difference and protrude from the upper tube column of the body difference, and the lower tube of the body difference is attached. L on both sides of the pedestal plate protruding from the pillar
Brackets and braces are attached downwards, and braces are attached upwards and downwards by braces.Hole-down fittings placed on both sides of the upper and lower pipe columns are the pull-down fittings above and below the pipes. A wooden frame bearing wall structure in which the upper and lower pipe columns and the body difference are integrally fixed by attaching to a column and tightening with tension bolts. 5. The load-bearing wall structure of a wooden frame according to claim 1, wherein the pillar is a through pillar provided in a projecting corner portion, and the horizontal member is a first barrel difference and a second barrel difference that form a right angle with each other. The pedestal plate is attached to each side surface of the through column where the first barrel difference and the second barrel difference are in contact with the through column at the projecting corner portion, and the upper and lower corners where the first barrel difference and the through column intersect. Attach the L-shaped metal fittings and bracing metal fittings to each other, and attach the bracing material in the vertical direction by each bracing metal fitting, and further install the L-shaped metal fittings and bracing metal fittings in the upper and lower corners where the second body difference and the through column intersect. Attaching the braces up and down with each bracing bracket, the hole down brackets are provided between the first barrel difference and the through column, the second barrel difference and the through column, and the through column and the first barrel difference, the second A wooden frame bearing wall structure that is fixed to the body difference. 6. The load-bearing wall structure of a wooden frame according to claim 1, wherein the pedestal plate, the L-shaped metal fittings and the screw nail holes for attaching the bracing metal fittings are conical trapezoidal holes, and inner holes. A wooden frame bearing wall structure with a sharp tip. 7. The load-bearing wall structure for a wooden frame according to any one of claims 1 to 6, wherein the L-shaped metal fitting and the bracing metal fitting are formed by bending or by another method. Frame bearing wall structure. 8. The load bearing wall structure for a wooden frame according to claim 1, wherein a pair of battledore plates are formed by welding tension bolt tips to a battledore plate having bolt holes instead of the hole down fittings. Place the bolts on both sides of the pillar, insert the tightening bolts that passed through the bolt holes of the battledore into the bolt insertion holes that penetrate the pillar, and tighten the nuts to fix one end of the battledore bolt and the other end. Is a load-bearing wall structure of a wooden framework that is inserted into a bolt insertion hole that penetrates the base or horizontal material and tightened with a nut. 9. In the load bearing wall structure of a wooden frame according to claim 1 or 2, an anchor planted on the foundation of the foundation instead of the tension bolt of the hole-down fitting for connecting the foundation and the pillar. A wooden frame bearing wall structure that uses bolts.