JP2003293487A - Bearing wall frame and bearing wall structure using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bearing wall frame lighter in weight with a smaller number of parts and more easily assembled than a conventional bearing wall frame and dispensing with after-plating treatment while holding fire resistance, durability and strength equivalent to the conventional bearing wall frame. <P>SOLUTION: This bearing wall frame 10 is provided with a body member 11 formed of channel steel having a wide web 11a almost equal to a distance between vertical frames, on the front side; a pair of vertical frame members 12A, 12B formed of steel and fastened to both side parts of the body member 11 by screws; an upper frame member 13A and a lower frame member 13B formed of steel and fastened to the upper and lower parts of the body member 11 and vertical frame members 12A, 12B; and a plurality of horizontal members 14 formed of steel and fastened at prescribed spaces between flanges 11b, 11c of the body member 11 by screws. <P>COPYRIGHT: (C)2004,JPO

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 frame which is incorporated in a wall frame of a building such as a steel house to form a load bearing wall, and a load bearing wall structure using the same.

[0002]

2. Description of the Related Art Steel houses originating in the United States have a
The structure is made of thin lightweight shaped steel of less than 8 to 2.3 mm, which constitutes the framework of a building such as a wall frame. The material cost is lower than that of wood, and it has excellent earthquake resistance and durability.
Since it has many advantages such as easy on-site work, short construction period and low construction cost, it is rapidly spreading in Japan.

Japanese Unexamined Patent Publication No. 2002-30745 discloses a bearing wall of a steel house of this type. As shown in FIG. 7, this load bearing wall has an upper frame 21 made of channel steel.
A, a lower frame 21B, and a plurality of wall vertical frames (studs) 22, 22, ... Made of lip channel steel that are erected between the upper frame 21A and the lower frame 21B, and have a rectangular shape. The wall frame 20 includes vertical frames 26, 26 made of lip channel steel.
The load-bearing wall frame 10 'is integrally joined via the.

Here, as shown in FIG. 8, the load bearing wall frame 10 'is connected to both ends of an upper frame member 13A and a lower frame member 13B which are arranged in parallel with each other and have a substantially U-shaped cross section. The vertical frame members 12, 12 each having a substantially U-shaped cross section, and the substantially vertical cross section L connected between the vertical frame members 12, 12 at predetermined intervals.
And a plurality of horizontal members 14, 14, ...
Furthermore, braces 16 and 16 are joined to the front and rear surfaces of a rectangular frame portion surrounded by these members. In addition, the upper frame member 13A, the lower frame member 13B and the vertical frame member 1
An anchor bolt for tightly connecting the load-bearing wall frame 10 'to the foundation or the load-bearing wall frame 10' is vertically connected to the four corners of the load-bearing wall frame 10 'formed of 2 and 12, respectively. A bolt fixing member 15 through which a shaft bolt for insertion is inserted is welded. Then, as shown in FIG. 7B, the wall vertical frames 22 and 22 of the wall frame 20 and the vertical vertical frames 26 and 26 are placed in contact with each other, and the vertical vertical frame members of the load bearing wall frame 10 ′ are arranged. The drilling tapping screw D is driven so as to penetrate the vertical frame 26 and the wall vertical frame 22 from the web of 12, and the bolt fixing members 1 at the four corners of the load resisting wall frame 10 ′ are provided.
By inserting an anchor bolt or a shaft bolt into 5 and tightening it with a nut, a load bearing wall is constructed by integrally joining the load bearing wall frame 10 ′ to the wall frame 20.

As described above, since all members of the load bearing wall, including the load bearing wall frame 10 ', are made of non-combustible steel, the load bearing wall has fire resistance and the load bearing wall frame 1
Since the braces 16 are joined to the front and rear surfaces of the 0'rectangular frame portion, the strength is high.

[0006]

However, the conventional load bearing wall frame 10 'has the following problems. (1) Since the load-bearing wall frame 10 'is an upper frame member 13A, a lower frame member 13B, a vertical frame member 12, a horizontal member 14, and a brace 16 which are all welded and assembled to each other, it is skilled in assembly. It requires technology and is likely to cause variations in quality. (2) Since a large number of braces 16, 16, ... Are joined to increase the rigidity of the load bearing wall frame 10 ', the number of parts and the number of assembling steps are large, and the cost is high. (3) Upper frame member 13A, lower frame member 13B, vertical frame member 12 has a plate thickness of 4.5 mm, horizontal member 14 has a plate thickness of 3.0 mm, brace 16 has a plate thickness of 4.2 mm, and a load bearing wall. Since all the members constituting the frame 10 'are thick, the overall weight is extremely large, and the efficiency of various operations such as manufacturing, transportation and construction is poor and the cost is high. (4) Since all the members constituting the load-bearing wall frame 10 'are all thick, it is unavoidable to manufacture each member by bender bending, and the cost is high. (5) Since all the members constituting the load-bearing wall frame 10 'are thick, it is inevitable that the entire surface is not plated, and then the whole member is plated by dobbing or the like. Therefore, the cost of plating is high and the member is distorted during the plating process.

Further, the conventional load bearing wall has the following problems. (6) In order to incorporate the load bearing wall frame 10 ′ into the wall frame 20, it is necessary to screw nuts into anchor bolts or shaft bolts inserted through the bolt fixing members 15 at the four corners of the load bearing wall frame 10 ′ and tighten them. , Bearing wall frame 1
The brace 16 joined to the front and rear surfaces of 0'is an obstacle, and it is extremely difficult to tighten the nut. (7) To join the load-bearing wall frame 10 ′ to the wall frame 20, the drilling tapping screw D is passed through the vertical frame member 12 of the load-bearing wall frame 10 ′ so as to penetrate the vertical frame 26 and the wall vertical frame 22. Since it needs to be driven in, it takes time and effort for construction. Moreover, since the plate thickness of the vertical frame member 12 of the load bearing wall frame 10 'is as thick as 4.5 mm, an insertion hole for driving the drilling tapping screw must be formed at a predetermined position of the vertical frame member 12 in advance. However, it takes time and labor to process the insertion hole, and the manufacturing cost of the load bearing wall frame 10 ′ increases.

The problems (6) and (7) are not limited to the load bearing wall in which the load bearing wall frame 10 'is incorporated in the wall frame of the steel house. Bearing frame to wall frame 10 '
Is generally applicable to load bearing walls incorporating.

The present invention has been made in view of the above circumstances. First, while maintaining the same fire resistance, durability and strength as the conventional load bearing wall frame, it is lighter than the conventional load bearing wall frame. Therefore, it is an object of the present invention to propose a load bearing wall frame that has a small number of parts, is easy to assemble, and does not require post plating treatment. Another object of the present invention is to propose a load bearing wall structure having high fire resistance / durability and high rigidity, which is constructed by incorporating this load bearing wall frame into a wall frame.

[0010]

The invention according to claim 1 is
A main body member made of channel steel having a wide web on the front side that is substantially equal to the distance between the wall vertical frames, a pair of vertical frame members made of steel materials screwed to both sides of the main body member, and the main body An upper frame member and a lower frame member made of steel that are screwed to the upper and lower parts of the member and the vertical frame member, and a plurality of horizontal members made of steel that are screwed at predetermined intervals between the flanges of the main body member, It is a load bearing wall frame characterized by including.

Such a load bearing wall frame includes a body member,
Since the vertical frame member, the upper frame member, the lower frame member, and the horizontal member are all screwed together, compared to the case where all the members are welded together as in the conventional load bearing wall frame. Easy to assemble and easy to homogenize. In addition, since the main body member is made of channel steel having a wide web on the front side that is approximately equal to the distance between the vertical walls of the wall, the rigidity is high without connecting the braces as in the conventional load bearing wall frame. As a result, the number of parts and the number of assembling steps can be reduced to reduce the cost.
Since the main body member, the vertical frame member, the upper frame member, the lower frame member, and the horizontal member that constitute this load bearing wall frame are all non-combustible steel materials, by incorporating them into the wall frame of the steel house, It has the same fire resistance as a wall frame.

According to a second aspect of the present invention, in the load bearing wall frame according to the first aspect, the main body member, the vertical frame member, the upper frame member, the lower frame member, and the horizontal member all have a plate thickness of 1.6 mm or less. Is characterized in that.

In such a load bearing wall frame, since the plate thickness of all the constituent members is as thin as 1.6 mm or less, the total weight becomes lighter than the conventional load bearing wall frame, and various factors such as manufacturing, transportation, and construction are required. It is possible to improve work efficiency and reduce costs. Further, the plate thickness of each component is 1.
Since it is as thin as 6 mm or less, it is possible to manufacture all of them by roll forming processing, and it is possible to achieve cost reduction compared to the conventional bearing wall frame in which each member has to be manufactured by bender bending processing. Furthermore, since the plate thicknesses of the respective constituent members are all thin, it is possible to manufacture all of them with the surface-treated steel plate. Therefore, the plating process after assembling is unnecessary, and it is possible to prevent the deformation distortion of the member during the plating process. Since the plate thickness of each component is thin, it is easy to screw each component together.

According to a third aspect of the present invention, in the load bearing wall frame according to the first or second aspect, a steel bolt fixing member screwed to the upper and lower portions of both vertical frame members is provided. And

In such a load bearing wall frame, since the bolt fixing members are screwed, the assembly is easier and the homogenization is easier than the conventional load bearing wall frame in which the bolt fixing members are welded and joined. Further, since the bolt fixing member is also made of non-combustible steel material, it exhibits the same fire resistance performance as the conventional load bearing wall frame.

The invention according to claim 4 is a wall frame comprising an upper frame and a lower frame arranged in parallel with each other, and a plurality of wall vertical frames provided upright between the upper frame and the lower frame. The load-bearing wall frame according to claim 3 is incorporated into the load-bearing wall frame, and the load-bearing wall frame is connected to the foundation only through the anchor bolts inserted through the bolt fixing member. It is a structure.

In such a load bearing wall structure, the load bearing wall frame is connected to the foundation only via the anchor bolts inserted through the bolt fixing members, and screw fastening to the wall frame is not required, so construction is not required. It is easy and does not require preparation of vertical holes. Further, since the bolt fixing members are fixed to the vertical frame members located on both sides of the load bearing wall, it is easy to tighten the nuts screwed into the anchor bolts.

The invention according to claim 5 is a wall frame comprising an upper frame and a lower frame arranged in parallel to each other, and a plurality of wall vertical frames provided upright between the upper frame and the lower frame. The load-bearing wall frame according to claim 3 is incorporated into the load-bearing wall frame, and the load-bearing wall frames are vertically connected to each other only through axial bolts inserted in the bolt fixing member. It is a wall structure.

In such a bearing wall, the bearing wall frame is
Since they are connected to each other vertically only through the axial bolts that are inserted into the bolt fixing members, and there is no need for screwing to the wall frame, construction is easy and no preparation of vertical holes in the vertical frame material is required. Is. Further, since the bolt fixing members are fixed to the vertical frame members located on both sides of the load bearing wall, it is easy to tighten the nuts screwed to the shaft bolts.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the description, the same elements will be denoted by the same reference symbols, without redundant description.

FIG. 1 shows an embodiment of a load-bearing wall frame according to the present invention, in which (a) is a perspective view seen from the front side,
(B) is a perspective view seen from the back side. Also, FIG.
FIG. 3 is an exploded view of FIG. As shown in these drawings, the load-bearing wall frame 10 includes a body member 11 made of channel steel having a wide web on the front side, and a pair of vertical members made of steel members screwed to both sides of the body member 11. Frame material 12
A, 12B, main body member 11 and vertical frame members 12A, 12
Upper frame member 13 made of steel screwed to the upper and lower parts of B
A, the lower frame member 13B, the flange 11b of the main body member 11,
.. and a plurality of horizontal members 14 made of steel, which are screwed at a predetermined interval between 11b. Further, bolt fixing members 15 are screwed to the four corners of the load-bearing wall frame 10 in the upper, lower, left and right corners.

The main body member 11 is made of lip channel steel formed by the web 11a, the flanges 11b and 11b, and the lip portions 11c and 11c. The web 11a has a width substantially equal to the distance between the wall lengths of the wall frame in which the load bearing wall frame 10 is incorporated, and serves as the front plate of the load bearing wall frame 10. Regarding the cross-sectional dimensions of the main body member 11, for example, the width of the web 11a is 415 mm, the width of the flange 11b is 87 mm, and the width of the lip portion 11c is 40 mm. Further, the main body member 11 is formed by roll-forming a surface-treated thin steel plate, and the plate thickness is selected from 1.0 mm, 1.2 mm, and 1.6 mm, for example. The main body member 11 may be made of channel steel without the lip portions 11c and 11c.

Vertically-arranged vertical frame members 12A, 1
2B includes web 12a and flanges 12b and 12 respectively.
It is made of lip channel steel formed by c and the lip portions 12d and 12d. The vertical frame members 12A and 12B are the web 12a.
Is arranged so as to be back-to-back with the flange 11b of the main body member 11, and is joined to the main body member 11 by a drilling tapping screw (not shown) driven from the web 12a to the flange 11b of the main body member 11.
For the vertical frame members 12A and 12B, for example, the width of the web 12a is 87 mm, the widths of the flanges 12b and 12c are 40 mm, and the plate thickness is 1.6 mm. The surface-treated thin steel plate is roll-formed. It has been done.

The upper frame member 13A and the lower frame member 13B which are vertically symmetrically arranged are made of channel steel formed by the web 13a and the flanges 13b and 13c. The upper frame member 13A and the lower frame member 13B are respectively inserted from the flange 13b on the front side to the main body member 11 with the main body member 11 and the upper and lower ends of the vertical frame members 12A and 12B sandwiched between the flanges 13b and 13c. Of the web 11a and the vertical frame members 12A and 12B by the drilling tapping screw D driven in the front flange 12b, and from the rear flange 13c to the lip portion 11c of the main body member 11 and the vertical frame members 12A and 12B.
The upper end and the lower end of the main body member 11 and the vertical frame members 12A and 12B are joined by a drilling tapping screw D driven into the flange 12c on the back surface side of 12B (see FIG. 1). The upper frame members 13A and 13B have, for example, a width of the web 13a of 89 mm, a width of the flanges 13b and 13c of 70 mm, and a plate thickness of 1.6 mm. The surface-treated overall thin steel plate is roll-formed. It has become a thing. In addition, at both ends of the web 13a of the upper frame member 13A and the lower frame member 13B, the bolt insertion notch 1 is previously formed at a position corresponding to a bolt hole 15c of a bolt fixing member 15 described later.
3d and 13d are drilled.

The horizontal member 14 includes the web 14a and the flange 1.
It is made of lip channel steel formed by 4b and 14c and lip portions 14d and 14d. The horizontal member 14 is sandwiched between the flanges 11b, 11b of the main body member 11 with a predetermined space in the height direction, and the drilling tapping screw D driven from the web 11a of the main body member 11 into the front flange 14b. Also, the rear side flange 14c
It is joined to the main body member 11 by a drilling tapping screw D driven from the lip portion 11c of the main body member 11 (see FIG. 1). The horizontal member 14 has, for example, a width of the web 14a of 83 mm and a width of the flanges 14b and 14c of 4 mm.
The plate thickness is 0 mm and the plate thickness is 1.0 mm, and the surface-treated whole thin steel plate is roll-formed.

The bolt fixing member 15 is a bearing wall frame 1
It is for inserting anchor bolts that are tightly connected to 0 as a foundation and shaft bolts that mutually connect the load bearing wall frames on the upper and lower floors. The bolt fixing member 15 is composed of a main body plate portion 15a having a U-shaped horizontal cross section, and a nut receiving plate portion 15b integrally joined to the upper or lower portion of the main body plate portion 15a by welding or the like. A screw hole (not shown) is preliminarily drilled at a predetermined position of the main body plate portion 15a, and a bolt hole 15c is preliminarily drilled at a substantially central portion of the nut receiving plate portion 15b. The bolt fixing member 15 is the vertical frame member 1.
2A and 12B, the vertical frame member 12 is inserted from the screw holes of the main body plate portion 15a while being sandwiched between the flanges 12b and 12c.
The hexagonal screws R (see FIG. 6) driven into the webs 12a of A and 12B and the flange 11b of the main body member 11 are just fixed to the four corners of the load bearing wall frame 10. In this state, the position and shape of the bolt hole 15c of the bolt fixing member 15 match the bolt insertion notch 13d of the upper frame member 13A and the lower frame member 13B.

As described above, the load bearing wall frame 10 includes the main body member 11, the vertical frame members 12A and 12B, the upper frame member 13A,
Since the lower frame member 13B, the horizontal member 14, and the bolt fixing member 15 are all fastened to each other by the drilling tapping screw D and the hexagonal screw R, all members are welded to each other like a conventional bearing wall frame. Easier to assemble and homogenize than if joined. Also, the main body member 11
However, since it is made of channel steel having a wide web 11a on the front side, which is approximately equal to the distance between the vertical walls of the wall, it has high rigidity without connecting braces as in the conventional load-bearing wall frame. Costs can be reduced by reducing the number of points and the number of assembly steps. In addition, the main body member 11, the vertical frame members 12A and 12B, and the upper frame member 13 that constitute the load bearing wall frame 10.
Since A, the lower frame member 13B, the horizontal member 14, and the bolt fixing member 15 are all made of non-combustible steel, they can exhibit the same fire resistance performance as a conventional load bearing wall frame by being incorporated into the wall frame of the steel house.

Further, the main body member 11, the vertical frame members 12A and 12B, the upper frame member 13A, the lower frame member 13B, and the horizontal member 14 constituting the load-bearing wall frame 10 are all thinned to 1.6 mm or less. Since the overall weight is lighter than the conventional bearing wall frame, not only can the efficiency of various operations such as manufacturing, transportation, and construction be improved to reduce costs, but all components are roll-formed. Therefore, the cost can be reduced as compared with the conventional load-bearing wall frame in which each member has to be manufactured by bender bending. Furthermore, since the plate thicknesses of the respective constituent members are all thin, it is possible to manufacture them with the surface-treated steel plate. Therefore, the plating process after assembling is unnecessary, and it is possible to prevent the deformation distortion of the member during the plating process.

Next, an embodiment of the load bearing wall structure according to the present invention will be described. FIG. 3 is a front view showing an embodiment of the load bearing wall structure according to the present invention, and shows a structure in which the load bearing wall frame shown in FIG. 1 is incorporated into a wall frame of a steel house. Further, FIG. 4 is an enlarged exploded perspective view of a portion A of FIG. As shown in these figures, the wall frame 20 is composed of an upper frame 21A, a lower frame 21B, and wall vertical frames 22, 22, ... Standing between them. The upper frame 21A and the lower frame 21B have a web 21a and a flange 21b, respectively.
21b, the width of the web 21a is 91 mm, the width of the flange 21b is 40 mm, and the plate thickness is 1.0 mm. The upper frame 21A is arranged with the flanges 21b and 21b facing downward, and the lower frame 21B is arranged with the flanges 21b and 21b facing upward. The webs 21a of the upper frame 21A and the webs 21a of the lower frame 21B are placed back to back. It is fixed. The vertical wall 22 is
Web 22a, flanges 22b, 22b and lip 22
It is made of lip channel steel formed by c and 22c. For example, the width of the web 22a is 87 mm, the width of the flange 22b is 40 mm, and the plate thickness is 1.6 mm. Vertical wall frame 22,
The arrangement interval of 22, ... Is 455 mm, for example, according to the module of this steel house.

By incorporating the load bearing wall frame 10 in such a wall frame 20, a load bearing wall is constructed as a whole. The wall vertical frame 22 is not arranged at the position where the load bearing wall frame 10 is installed, and the upper frame 21A of the wall frame 20 at the position corresponding to the bolt hole 15c of the bolt fixing member 15 of the load bearing wall frame 10 to be installed, The bolt holes 21 are formed in the web 21a of the lower frame 21B.
c is drilled. The load bearing wall frame 10 is not fixed to the upper frame 21A and the lower frame 21B of the wall frame 20, but rather to the bolt holes 15c of the bolt fixing member 15 below the load bearing wall frame 10 on the upper floor and the lower frame of the wall frame 20. 21B
Bolt holes 21c of the upper frame 21A and the bolt holes 21c of the upper frame 21A and the bolt holes 15c of the bolt fixing members 15 on the upper portion of the load-bearing wall frame 10 on the lower floor.
By tightening with, the load bearing wall frame 10 on the upper floor and the load bearing wall frame 10 on the lower floor are connected to each other and assembled into the wall frame 20. In this state,
The center-to-center distance between the vertical frame members 12A and 12B of the load bearing wall frame 10 is 455 mm according to the module, and the vertical frame members 12A and 12B of the load bearing wall frame 10 are similar to the wall vertical frame 22 of the wall frame 20. It plays a role of.

In the case of the bearing wall on the first floor, the lower frame 21B of the wall frame 20 is arranged on the foundation 31 and embedded in the foundation 31, as shown in FIG. The anchor bolt 25 attached to the nut 2 is inserted into the bolt hole 21c of the lower frame 21B of the wall frame 20 and the bolt hole 15c of the bolt fixing member 15 of the load bearing wall frame 10.
By tightening with 4, the load-bearing wall frame 10 of the first floor
Is tied to the foundation 31.

As described above, the load bearing wall frames 10 are vertically connected to each other only through the shaft bolts 23 inserted through the bolt fixing members 15, and only through the anchor bolts 25 inserted through the bolt fixing members 15. Is connected to the foundation 31 (see FIG. 6). Therefore, the wall frame 2
No screw fastening to 0 is required, and construction is easy. Naturally, preparation of holes in the vertical frame members 12A and 12B such as the conventional load-bearing wall frame is also unnecessary. Also, the bolt fixing member 15 is
Since it is fixed to the vertical frames 12A and 12B on both sides of the load-bearing wall frame 10 and is spaced apart from the vertical frame 22 of the wall frame 20, the axial bolts 23 and the anchor bolts 25 are screwed together. The work of tightening the nut 24 is easy and the workability is good.

Although one embodiment of the load bearing wall frame and the load bearing wall structure according to the present invention has been described above, the present invention is not limited to the above embodiment, and appropriate modifications may be made according to the spirit of the invention. It goes without saying that it is possible.

[0034]

As described above, in the load bearing wall frame according to the present invention, since all the constituent members are screwed together, all the members are welded to each other like the conventional load bearing wall frame. Easier to assemble and homogenize than if joined. Further, the rigidity is high without connecting the brace, and as a result, the number of parts and the number of assembling steps can be reduced, and the cost can be reduced. Moreover, since the plate thickness of each component is thin, the overall weight is lightened, and the efficiency of various operations such as manufacturing, transportation, and construction can be improved, and the cost can be reduced. In addition, since the plate thickness of each component is thin, all of them can be manufactured by roll forming, and cost reduction can be achieved compared to the conventional bearing wall frame where the members must be manufactured by bender bending. You can Further, since the plate thicknesses of the respective constituent members are all thin, it is possible to manufacture all of them with the surface-treated steel plate. Therefore, the plating process after assembling is unnecessary, and it is possible to prevent the deformation distortion of the member during the plating process.

Further, in the load bearing wall structure according to the present invention, the load bearing wall frame is connected to the foundation only through the anchor bolts inserted through the bolt fixing members, and only through the axial bolts inserted through the bolt fixing members. Since they are connected to each other vertically, there is no need to screw them to the wall frame,
It is easy to install and does not require preparation of vertical holes in the frame material. Further, since the bolt fixing member is fixed to the vertical frame members on both sides of the load bearing wall frame, it is easy to tighten the nut screwed with the anchor bolt.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a load bearing wall frame according to the present invention, in which (a) is a perspective view seen from the front direction,
(B) is a perspective view seen from the back side.

FIG. 2 is an exploded view of the load bearing wall frame of FIG. 1 (b).

FIG. 3 is a front view showing an embodiment of a load bearing wall according to the present invention.

FIG. 4 is an enlarged exploded perspective view of a portion A of FIG.

FIG. 5 is an enlarged exploded perspective view of the same B section.

FIG. 6 is an enlarged cross-sectional view of the same portion.

7A is a front view showing a load bearing wall of a conventional steel house, and FIG. 7B is a sectional view taken along line CC of FIG.

FIG. 8 is a front view showing a conventional load bearing wall frame.

[Explanation of symbols]

10… Bearing wall frame 11 ... Main body member 11a ... Web 11b ... Flange 11c ... Lip part 12A, 12B ... Vertical frame material 12a ... Web 12b, 12c ... Flange 12d ... Lip part 13A ... Upper frame material 13B ... Lower frame material 13a ... Web 13b, 13c ... Flange 13d ... Bolt insertion notch 14… Horizontal material 14a ... Web 14b, 14c ... Flange 14d ... Lip part 15 ... Bolt fixing member 15a ... Main body plate 15b ... Nut receiving plate portion 15c ... Bolt hole 16… Brace 20… Wall frame 21A ... Upper frame 21B ... lower frame 21a ... Web 21b ... Flange 21c ... Bolt hole 22 ... Vertical wall frame 22a ... Web 22b ... Flange 22c ... Lip part 23 ... Axial bolt 24 ... Nut 25 ... Anchor bolt 26 ... Vertical frame 31 ... Basic D… Drilling tapping screw R ... Hexagon screw

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) E04C 2/38 E04C 2/38 PF term (reference) 2E002 EA02 FA02 FA05 FB08 FB16 JA01 JA03 LB02 LB13 LC03 2E162 BA02 BB03 CB02

Claims (5)

[Claims] 1. A main body member made of channel steel having a wide web substantially equal to the distance between the wall vertical frames on the front side, and a pair of vertical frames made of steel material screwed to both sides of the main body member. Material, an upper frame member and a lower frame member made of steel that are screwed to the upper and lower portions of the main body member and the vertical frame member, and a plurality of steel members that are screwed at predetermined intervals between the flanges of the main body member A load bearing wall frame, comprising: 2. The load bearing wall frame according to claim 1, wherein the main body member, the vertical frame member, the upper frame member, the lower frame member, and the horizontal member all have a plate thickness of 1.6 mm or less. . 3. The load-bearing wall frame according to claim 1, further comprising steel bolt fixing members screwed to the upper and lower portions of the both vertical frame members. 4. An upper frame and a lower frame arranged in parallel with each other,
The load bearing wall frame according to claim 3 is incorporated in a wall frame composed of a plurality of wall vertical frames that are erected between the upper frame and the lower frame, wherein the load bearing wall frame is the bolt. It is connected to the foundation only through the anchor bolts inserted through the fixing member,
A bearing wall structure characterized by that. 5. An upper frame and a lower frame arranged in parallel with each other,
The load bearing wall frame according to claim 3 is incorporated in a wall frame composed of a plurality of wall vertical frames that are erected between the upper frame and the lower frame, wherein the load bearing wall frame is the bolt. The upper and lower parts are connected to each other only through the shaft bolts inserted through the fixing member,
A bearing wall structure characterized by that.