JP2003064806A - Structure of bearing wall and built-in construction method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a built-in construction method for a bearing wall capable of remodeling a non-bearing wall into the bearing wall without cutting a framework, replacing the framework, and generating cut pieces of the frame work which become industrial waste and provide a structure of the bearing wall. SOLUTION: This structure A of the bearing wall is constructed in such a way that a frame with brace 5 provided with a frame 5a which agrees with inner periphery of a frame shape and a brace 5b connecting corner parts of the frame 5a mutually is fitted in an inner peripheral side of the framework 1 arranged in a frame shape and is fixed by fixing devices 4a, 4b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of incorporating a load bearing wall for converting a non-bearing wall into a load bearing wall during an extension work of a house, and a structure of a load bearing wall used in both extension work and new construction work. Regarding

[0002]

2. Description of the Related Art Due to the structure of a house, it is sometimes necessary to convert a non-bearing wall of an existing building part into a bearing wall and to provide a bearing wall at a predetermined place in the construction of a house. The construction method in this case is to remove the existing general shaft (framework) and replace the entire wall part with a bearing wall, or to leave the existing general shaft as it is and to use the four corners of the frame formed by the shaft. There is a method of constructing a bearing wall by adding braces to the above by welding.

[0003]

However, the method of removing the existing general shaft and replacing the entire wall portion with the bearing wall is to cut the existing frame or to install a new frame. It took time and effort. In addition, there is also a problem in that fragments of the cut frame and unnecessary frames generated by the replacement become industrial waste, which causes additional costs for processing this waste.

Further, in the construction method in which the existing general shaft is left as it is and braces are added to the four corners of the frame formed by the shaft by welding, the construction can be performed only by a qualified person for welding. Problems arise, and even in the case of qualified personnel, on-site welding is unreliable and there is a problem in the reliability of construction. In addition, at the construction site of a house, materials that easily catch fire and waste materials are often scattered, and there is a risk of causing a fire due to sparks during construction. There is also a problem of decreasing.

The present invention has been made in order to solve such a problem, and does not cut the frame, does not replace the frame, and does not generate cutting pieces of the frame that become industrial waste. Another object of the present invention is to provide a method for assembling a load-bearing wall in which a non-bearing wall is a load-bearing wall and a structure of the load-bearing wall.

[0006]

In order to achieve the above object, the structure of the load bearing wall according to claim 1 is provided on the inner peripheral side of a frame set in a frame shape and on the inner peripheral side of the frame shape. It is characterized in that a frame with brace including a matching frame and a brace for connecting the corners of the frame is fitted and fixed by a fixture.

According to a second aspect of the present invention, there is provided the load bearing wall structure according to the first aspect.
In the structure of the load-bearing wall described above, the shaft assembly is made of lip grooved steel, and a groove closing member for closing the grooved portion is fixed to a groove portion of the lip grooved steel by a fixture, and the frame with braces is provided. Is fitted to the inner peripheral side of the shaft assembly and fixed by a fixing tool via the groove closing member.

According to a third aspect of the present invention, there is provided a load bearing wall assembling method, wherein an outer wall portion formed by fixing an outer wall panel to a frame-shaped frame is used as a load bearing wall. An outer wall panel removing step of removing an existing outer wall panel from the frame assembly, and a frame with a brace including a frame matching the inner circumference of the frame shape and a brace connecting the corners of the frame to each other are provided in the frame assembly. A frame mounting step with a brace that fits on the peripheral side and is fixed by a fixture, an outer wall panel returning step of reattaching the existing outer wall panel removed in the outer wall panel removing step to the shaft assembly,
It is characterized by including.

According to a fourth aspect of the present invention, there is provided a load bearing wall assembling method, wherein an outer wall portion formed by fixing an outer wall panel to a shaft assembly made of lip channel steel arranged in a frame shape is used as a load bearing wall. An embedding method, an outer wall panel removing step of removing an existing outer wall panel from the shaft assembly, and a groove closing member attaching step of fixing a groove closing member for closing the groove portion to the groove portion of the lip groove section steel with a fixture. A frame with a brace having a frame that matches the inner circumference of the frame shape and a brace that connects the corners of the frame is fitted into the inner circumference of the frame assembly, and the shaft is inserted through the groove closing member. A frame attaching step with a brace that is fixed to the inner peripheral side of the set by a fixture, and an outer wall panel returning step of reattaching the existing outer wall panel removed in the outer wall panel removing step to the shaft set,
It is characterized by including.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION A structure of a load bearing wall and a method of incorporating a load bearing wall according to embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1 and FIG. 2, a structure A of a load bearing wall according to an embodiment of the present invention has an outer wall panel 2 fixed to a frame assembly 1 made of lip grooved steel and arranged in a frame shape. In the structure of the load bearing wall in the outer wall portion X, a groove closing member 3 for closing the groove portion 1a of the frame assembly 1 is fixed to the inner peripheral side of the frame assembly 1 arranged in a frame shape by fixing tools 4a and 4b. A frame 5 with a brace having a shape matching the inner circumference of the frame formed by the shaft assembly 1 is fitted on the inner circumference side of the shaft assembly 1 and is attached to the shaft assembly 1 via the groove closing member 3. The outer wall panel 2 is fixed, and the outer wall panel 2 is attached to the frame assembly 1 from above the braced frame 5.

The frame 5 with braces is the frame assembly 1
And a brace 5b that connects the corners of the frame 5a with the inner periphery of the frame shape formed by the frame 5a. The frame 5a is formed by joining lip channel steels in a frame shape, and further, both ends of the brace 5b are fixed to the corners through plates 5c fixed to the corners of the frame 5a. ing. In addition, a turnbuckle 5 is provided at an intermediate portion of the brace 5b.
d is provided, and the frame 5 with braces is attached to the frame assembly 1
The tension of the brace 5b can be adjusted after it is fitted into.

The groove closing member 3 has the same width as the depth of the groove portion 1a of the shaft assembly 1 made of lip channel steel, and the groove portion 1a
The rib 1b of the lip grooved steel and the mounting surface 3c of the frame 5 with braces are flush with each other and fixed to the groove portions 1a while being fixed by fixing members 4a and 4b. Further, as the groove closing member 3, different shapes are used depending on the location of the assembled shaft assembly 1 as shown in FIG. 3, for example.

For example, the groove closing member 3A shown in FIG.
Is attached to a corner portion of the shaft assembly 1, and has an intermediate portion bent. In order to facilitate bolt fastening with the brace-equipped frame 5 at a predetermined position on the mounting surface 3c side of the brace-equipped frame 5 of the groove closing member 3A, a drill hole is formed and then a nut 4b is fixed. Has been done. Further, a bolt mounting hole 3a is provided for bolting the groove closing member 3A and the shaft assembly 1, and a bolt passage window 3b for mounting the bolt 4a is provided.

The groove closing member 3B shown in FIG. 3 (b) is attached to the shaft set 1A which constitutes the column portion of the frame-shaped shaft set 1 and is similar to the groove closing member 3A described above. A drill hole and a fixed nut 4b are provided at a predetermined position inside, and similarly, a bolt mounting hole 3a and a bolt passage window 3 are also provided.
b is provided.

A groove closing member 3C shown in FIG. 3 (c) is a frame set 1 which constitutes an intermediate cross section of the frame set 1 arranged in a frame shape.
B is attached by penetrating a connecting portion between B and the shaft set 1A forming the pillar part, and connects side parts of the frame 5 with braces arranged above and below the shaft set 1B forming the middle crosspiece part. It is fixed and also fixed to the shaft set 1A. Also,
Similar to the groove closing member 3A, a drill hole and a fixed nut 4b are provided at a predetermined position inside the member, and similarly,
A bolt mounting hole 3a and a bolt passage window 3b are provided.

The shaft assembly 1 and the groove closing members 3A to 3
As described above, the bolts 4a and the nuts 4b can be used as the fixtures for fastening C and the groove closing members 3A to 3C and the frame 5 with braces, but if the fixtures have sufficient strength. It may be a screw, a rivet, or the like.

As the outer wall panel 2, as shown in FIG. 2, a frame body 6 having a rectangular U-shaped cross section is formed.
An outer wall board 7 fixed to the frame body 6, and the frame body 6
However, the outer wall panel 2 does not need to be limited to this specification and may be another type of outer wall panel.

Next, a method of assembling the bearing wall in which the bearing wall is incorporated into the non-bearing wall will be described. First, as shown in FIG. 4, in the outer wall portion X in which the load bearing wall is to be incorporated, the existing outer wall panel 2 is removed from the frame assembly 1 to expose the frame assembly 1 to the outside (outer wall panel removing step). ).

Next, the groove closing members 3A to 3C are attached to the groove portions 1a of the shaft assembly 1 at predetermined positions.
The mounting is performed by using the bolts 4a and the nuts 4b that fasten the shaft sets 1 to each other or the shaft set 1 and the foundation 9, and the groove closing member 3A at the corner of the shaft set 1 and the groove closing member 3B at the pillar. The groove closing member 3C is attached to the connecting portion of the shaft set 1B forming the middle crosspiece portion and the column forming portion 1A forming the pillar portion (the groove closing member attaching step). In this way, using the existing bolt 4a and nut 4b,
It is possible to improve the work efficiency by omitting the number of processing steps such as mounting holes for bolts. However, if bolts 4a, etc. that can be used in appropriate places are not provided, the mounting holes etc. should be processed as appropriate. Then, the bolts 4a and the nuts 4b are used for fixing.

Next, as shown in FIG. 5, the brace-equipped frame 5 is fitted into the inner peripheral side of the frame assembly 1 arranged in the frame shape, and the bolts 4a are attached to the inner peripheral side of the brace-equipped frame 5. And is fixed to the nut 4b fixed inside the groove closing member 3. That is, the brace-equipped frame 5 is fixed to the frame assembly 1 via the groove closing member 3 (bracing-equipped frame attaching step), and the turnbuckle 5d is rotated as necessary to adjust the tension of the brace 5b.

Finally, as shown in FIG. 6, the existing outer wall panel 2 removed in the outer wall panel removing step is attached to the shaft assembly 1 again by using a predetermined attachment metal fitting 10.
Installation of bearing wall is completed (outer wall panel restoration process).

In the above description, the case where the lip channel steel is used as the frame 1 has been described. However, as shown in FIGS. 7 and 8, for example, from a wood frame 1C having a rectangular cross section, etc. In the outer wall portion Y, the groove closing member 3
Without using, the structure B of the bearing wall can be formed by directly fixing the periphery of the frame 5 with braces to the frame set 1C with the bolts 4a and the nuts 4b.

In the above description, the method of incorporating the bearing wall in the outer wall portion and the structure of the bearing wall have been described.
Such a bearing wall can also be provided in the case of a field wall, a partition wall or the like in which a wall panel is fixed to a frame-shaped frame. That is, as in the case of the outer wall portion, in the frame arranged in the inner frame shape such as the boundary wall and the partition wall,
When the frame is composed of lip channel steel, etc.,
The groove closing member 3 as described above is fixed by a fixing tool, the frame 5 with braces is fitted in the shaft assembly, and is fixed to the inner peripheral side of the shaft assembly by the fixing tool via the groove closing member 3. The same bearing wall can be constructed with. On the other hand, in the case where the frame set is made of a wood frame set having a rectangular cross section, the frame with braces 5 is fitted into the frame set and fixed by a fixture without using the groove closing member 3. The same bearing wall can be constructed with. Also,
The structures A and B of the bearing wall are not limited to the extension work,
It can also be used in new construction.

[0024]

According to the structure of the load-bearing wall according to the first aspect of the present invention, the frame and the corners of the frame that match the inner circumference of the frame are connected to the inner circumference of the frame-shaped shaft assembly. A frame with a brace with a brace to
Since it is fixed with a fixture, when constructing the structure of the load-bearing wall, cutting and replacement of the frame and welding work are not required, and general workers can efficiently install the load-bearing wall. It is possible to do. In addition, since the framework does not need to be cut and replaced, cutting pieces of the framework that should be treated as industrial waste do not occur, and the industrial waste treatment cost can be reduced.

According to a second aspect of the present invention, the structure of the load bearing wall is the first aspect.
In the structure of the load-bearing wall described above, the shaft assembly is made of lip grooved steel, and a groove closing member for closing the grooved portion is fixed to a groove portion of the lip grooved steel by a fixture, and the frame with braces is provided. However, since it is fixed to the inner peripheral side of the frame by a fixture via the groove closing member, even if the frame is lip channel steel,
The same effect as the structure of the load bearing wall according to claim 1 is obtained.

According to a third aspect of the present invention, there is provided a load bearing wall assembling method, wherein an outer wall portion formed by fixing an outer wall panel to a frame-shaped frame is used as a load bearing wall. An outer wall panel removing step of removing an existing outer wall panel from the frame assembly, and a frame with a brace including a frame matching the inner circumference of the frame shape and a brace connecting the corners of the frame to each other are provided in the frame assembly. A frame mounting step with a brace that fits on the peripheral side and is fixed by a fixture, an outer wall panel returning step of reattaching the existing outer wall panel removed in the outer wall panel removing step to the shaft assembly,
According to this construction method, the same effect as the structure of the load bearing wall can be obtained.

According to a fourth aspect of the present invention, there is provided a load bearing wall assembling method, wherein an outer wall portion formed by fixing an outer wall panel to a shaft assembly made of lip channel steel arranged in a frame shape is used as a load bearing wall. An embedding method, an outer wall panel removing step of removing an existing outer wall panel from the shaft assembly, and a groove closing member attaching step of fixing a groove closing member for closing the groove portion to the groove portion of the lip groove section steel with a fixture. A frame with a brace having a frame that matches the inner circumference of the frame shape and a brace that connects the corners of the frame is fitted to the inner circumference side of the frame assembly, and the shaft is provided through the groove closing member. A frame attaching step with a brace that is fixed to the inner peripheral side of the set by a fixture, and an outer wall panel returning step of reattaching the existing outer wall panel removed in the outer wall panel removing step to the shaft set,
According to this construction method, the same effect as the structure of the load bearing wall can be obtained.

[Brief description of drawings]

FIG. 1 is a schematic view of an outer wall provided with a load bearing wall according to an embodiment of the present invention when viewed from the outside of the door, in which an outer wall panel is omitted.

FIG. 2 is a sectional view taken along line ZZ of FIG.

FIG. 3 is a perspective view showing a groove closing member.

FIG. 4 is an explanatory diagram of a case where an outer wall panel is removed and a groove closing member is attached to a shaft assembly.

FIG. 5 is an explanatory diagram of a case where a frame with braces is attached to the frame assembly.

FIG. 6 is an explanatory diagram for reattaching the outer wall panel that has been previously removed from the top of the frame with braces fixed to the frame.

FIG. 7 is a schematic view of a state in which a load bearing wall is incorporated in an outer wall portion made of a timber frame having a rectangular cross section, as viewed from the outside of the door, with the outer wall panel omitted.

8 is a sectional view taken along line S-S in FIG. 7.

[Explanation of symbols]

A, B Bearing wall structure X, Y outer wall 1 axis 1a groove 2 outer wall panels 3, 3A to 3C groove closing member 4a, 4b fixture Frame with 5 braces 5a frame 5b brace

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) E04G 23/02 E04G 23/02 E (72) Inventor Yushi Ueda 1-88, Oyonaka, Kita-ku, Osaka No. Sekisui House Co., Ltd. (72) Inventor Kazuo Nakahara 1-1-88 Oyodochu, Kita-ku, Osaka City Sekisui House Co., Ltd. (72) Toshihiro Horie 1-1-88 Oyodochu, Kita-ku, Osaka No. Sekisui House Co., Ltd. (72) Inventor Muneo Otani 1-88, Oyodochu, Kita-ku, Osaka City F-terms (reference) within Sekisui House Co., Ltd. (reference) 2E002 EB12 FA02 FA03 FB08 FB15 FB16 HA02 HB01 HB03 MA09 2E176 AA09 BB28

Claims (4)

[Claims] 1. A brace-equipped frame having a frame matching the inner circumference of the frame and a brace connecting the corners of the frame is fitted to the inner circumference of the frame-shaped frame. Also, the structure of the load bearing wall is characterized by being fixed by a fixing tool. 2. The shaft assembly is made of lip grooved steel, and a groove closing member for closing the grooved portion is fixed to a groove portion of the lip grooved steel by a fixture, and the frame with braces is The structure of the load bearing wall according to claim 1, wherein the structure is fitted on the inner peripheral side of the shaft assembly and fixed by a fixture via the groove closing member. 3. A method for assembling a bearing wall in which an outer wall portion formed by fixing an outer wall panel to a frame-shaped frame member is used as a bearing wall, wherein an existing outer wall panel is detached from the frame member. Panel removal process, and a frame with braces, which has a frame that matches the inner circumference of the frame shape and braces that connect the corners of the frame, is fitted on the inner circumference side of the frame assembly and fixed by a fixture. And a step of attaching a frame with a brace, and an outer wall panel restoring step of reattaching the existing outer wall panel removed in the outer wall panel removing step to the shaft assembly. 4. A method for assembling a bearing wall in which an outer wall portion formed by fixing an outer wall panel to a shaft assembly made of lip channel steel arranged in a frame shape is used as a bearing wall. An outer wall panel removing step of removing from the shaft assembly, a groove closing member attaching step of fixing a groove closing member for closing the groove portion to a groove portion of the lip grooved steel with a fixing tool, and a frame conforming to the inner periphery of the frame shape. And a frame with braces having braces for connecting the corners of the frame is fitted to the inner peripheral side of the shaft set and fixed to the inner peripheral side of the shaft set by the fixing tool via the groove closing member. And a step of attaching a frame with a brace, and an outer wall panel restoring step of reattaching the existing outer wall panel removed in the outer wall panel removing step to the shaft assembly.