JP2002188227A - Joint structure of wall frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make operations efficient by eliminating the marking-off operations during the assembly of an upper frame material, etc., and a vertical frame material, the operations for drilling a through hole for a joint bolt, and the like in the jointing of a wall frame of a steel house. SOLUTION: The joint structure 1 of the wall frame is characterized as follows: a cut 14, capable of being formed so as to be bent up, is made in a web part 2a of channel steel 2 constituting the upper or lower frame material; and the vertical frame material 4 is joined to a bent-up surface 3 formed by bending up the web part 2a inside the cut 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joining structure of a wall frame in a steel house, and more particularly to a frame member and a vertical frame member of a channel steel having a bent surface formed by raising a cut formed in a web portion. The present invention relates to a joint structure of a wall frame such as a joint.

[0002]

2. Description of the Related Art Shaped steel materials have very little creep phenomena and aging deterioration as compared with wood, and have recently attracted attention as building materials for houses from the viewpoint of protection of forest resources.

However, when a section steel is used as a frame, and when the channel steel of the upper frame or the lower frame is joined to the channel steel of the vertical frame, the upper frame or the lower frame is used. It is common to use a fastener to join the flange of the vertical frame material and the flange of the vertical frame material. However, the head of the fastener protrudes from the flange of the channel steel to which the face material and the finish material are attached, and the fastener head interferes with the face material and deforms the face material. Is impaired.

When the upper frame material or the lower frame material is joined to the vertical frame material, scribing or the like for positioning during assembly is indispensable. Further, holes for penetrating the anchor bolts and the joining bolts into the upper frame material or the lower frame material have to be opened as necessary, which has a drawback that the work at the time of construction is very complicated.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to eliminate the above-mentioned drawbacks of the prior art.
Eliminates work such as scribing for positioning when assembling the upper frame material or lower frame material and the vertical frame material, and drilling work for penetration holes of anchor bolts and joining bolts to improve work efficiency during construction. It is.

It is another object of the present invention to prevent the fastener head or the like from interfering with the face material or the finishing material, thereby eliminating the possibility of deformation of the face material or damage of the face material.

[0007]

According to a first aspect of the present invention, a notch formed by bending and raising is formed in a web portion 2a of a channel steel 2 constituting an upper frame member or a lower frame member.
A wall frame joining structure 1 characterized in that a vertical frame member 4 is joined to a bent surface 3 formed by bending and raising an inner web portion piece.

According to a second aspect of the present invention, in the first aspect, an anchor bolt or a joining bolt for joining a base or a foundation to a wall is penetrated into an opening 2c formed in the web portion by bending and raising the bending surface 3. It is characterized by being arranged.

According to a third aspect of the present invention, in the first aspect, a bolt for joining the upper floor wall and the lower floor wall is inserted into the opening 2c formed in the web by bending and raising the bending surface 3. It is characterized by having done.

A fourth invention is characterized in that in the first to third inventions, the opening 2c formed in the web portion by bending and raising the bent surface is a wiring hole or a piping hole.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Here, the present invention will be described in detail based on an embodiment shown in the drawings. FIG. 1 is a plan view and a longitudinal sectional view of a channel steel having a cut in a web portion, and FIGS. 2 to 6 show specific examples of a state in which a vertical frame member is joined to a bent surface of the channel steel of FIG. FIG. The upper frame material or the lower frame material of the present invention is made of a channel steel 2 made of a thin steel plate having a thickness of 0.5 mm to 2.3 mm. Also, cuts 14 (see FIG. 2) that can be bent and formed are provided at predetermined intervals (for example, at intervals of 45 cm) in the web portion 2a of the channel steel. The cut 14 is not limited to the present invention, but is formed so that the web portion inside the cut 14 forms a U-shape, a C-shape, a semicircle, or the like.

Then, the small piece 3 of the web portion located inside the notch 14 is divided into the web portion 2 of the channel steel with reference to a bending line 15 (see FIG. 2) connecting the ends of the notch.
A bent surface 3 is formed by bending the sheet so as to stand upright with respect to a. At this time, an opening 2c corresponding to the shape of the bent surface 3 is formed in the web portion 2a. This bending operation may be performed at a factory or at a site.

The vertical frame member 4 is made of a box steel, a channel steel, a lip channel steel, or the like made of a thin steel sheet of 0.5 mm to 2.3 mm. The dimensions of the vertical frame member 4 are such that the outer width of the flange portion 4b of the vertical frame member 4 is such that the vertical frame member 4 stands upright between the upper frame member 2e and the lower frame member 2d. The material 2d is formed so as to fit within the inner width of the flange portion 2b.

The upper frame member 2e or the lower frame member 2d and the vertical frame member 4 are joined so that the web portion 4a of the vertical frame member 4 comes into contact with the bent surface 3 of the upper frame member 2e or the lower frame member 2d. Is arranged, and the bent surface 3 of the upper frame member 2e or the lower frame member 2d and the web portion 4a of the vertical frame member 4 are fixed by any means such as bolts, fasteners, and caulking.
FIG. 2 is a perspective view showing a state when the lower frame member and the vertical frame member of the present invention are joined.

That is, according to the present invention, a bent surface 3 is provided upright on the web portion 2a of the upper frame member 2e or the lower frame member 2d. The material 3 is joined. For this reason, the bent surface 3 inside the flange 2b such as the upper frame member becomes a joining portion, and the head of the fastener or the like does not protrude from the flange portion 2b such as the upper frame member to which the surface material and the finishing material are attached. Therefore,
This is advantageous in that deformation or breakage of the face material or the like due to the fastener head or the like does not occur.

Further, in the present invention, the bent surface 3 provided in advance on the upper frame material or the lower frame material 2 also serves as a guide for the joining position of the vertical frame material 4. Therefore, it is also advantageous in that work such as scribing at the time of assembly on the site is not required.

Here, in the joint structure 1 of the wall frame according to the present invention, the nut 5 is inserted from the outside of the hold-down metal member 6 joined to the vertical frame member 4 by inserting the bolt 5 through the opening 2c of the upper frame member or the lower frame member. The joint strength can also be increased by fastening (see FIG. 3). At this time, since the anchor bolt or the joining bolt penetrates into the opening 2c formed in the web portion by bending and raising the bending surface 3, it is not necessary to open a hole for the upper frame material or the lower frame material on site, and the work is performed. Efficiency can be improved.

FIG. 4 is a view showing an example of use of the hold-down hardware 6 when the lower frame member 2 is placed on the foundation 8 in the joint structure 1 of the wall frame according to the present invention. In this case, the upper end of the anchor bolt 5a embedded in the foundation 8 penetrates from the opening 2c of the lower frame member, and the nut 7 is attached to the thread portion of the anchor bolt 5a from outside the hold-down metal member 6 joined to the vertical frame member 4. By fastening, the foundation 8 and the lower floor bearing wall (lower floor wall frame structure) 9 are integrated.

FIG. 5 and FIG. 6 are views showing an example of use of the hold-down hardware 6 in the second-floor floor assembly for the joint structure 1 of the wall frame according to the present invention. In this case, floor base material 1
1. Channel steel with lip is spacer 12a on the back of the web
, The floor joists 12 and the head tie 13 are sandwiched vertically, and the upper frame member 2e constituting the lower frame member and the opening 2c of the lower frame member 2d constituting the upper frame member are sandwiched between the floor joists 12 and the head joint 13. Threaded steel connecting rods 5b at both ends are inserted into the through holes of the hold-down hardware 6 joined to the vertical frame member 4 near the upper end of the lower floor and the lower end of the upper floor. Steel connecting rods 5 from outside of hold down hardware 6
The nut 7 is fastened to b, and the lower floor bearing wall (lower wall frame structure) 9 and the upper floor bearing wall (upper floor wall frame structure) 10 are integrated.

Although the present invention has been described based on the illustrated embodiment, the present invention is not limited to the above embodiment. For example, an opening provided in the upper frame material or the lower frame material may be diverted to a wiring insertion hole or a pipe insertion hole.

[0021]

According to the present invention, the web bending surface inside the flange of the upper frame material or the lower frame material becomes the joining portion. Therefore, unlike the conventional case, the head of the fastener or the like does not protrude from the flange portion to which the face material or the finishing material is attached, and the face material or the like is not deformed or damaged.

Further, by joining the bent surface formed by bending the cut of the channel steel web of the upper frame material and the lower frame material to the vertical frame material, the bent surface guides the joining position of the vertical frame material. Becomes Therefore, work such as scribing at the time of assembly at the site is not required.

Further, by penetrating anchor bolts, joining bolts, indoor wiring and pipes into the openings opened by bending the cuts, there is no need to open holes at the work site, thereby improving work efficiency. Can be.

[Brief description of the drawings]

FIG. 1 (A) is a plan view of a channel steel used for an upper frame material or a lower frame material of the present invention, and FIG. 1 (B) is an AA of (A).
It is sectional drawing.

FIG. 2 is a perspective view showing a state at the time of joining a lower frame member and a vertical frame member of the present invention.

FIG. 3 is a perspective view showing a mounting state in a case where a hole-down metal member is joined to a vertical frame member and a joining bolt is inserted through an opening of a lower frame member in the joint structure of the wall frame according to the present invention.

FIG. 4 is a perspective view showing an example of use of a hold-down hardware when a lower frame material is placed on a foundation in the joint structure of a wall frame according to the present invention.

FIG. 5 is a perspective view showing an example of use of a hold-down metal fitting in a second-floor floor assembly for the joint structure of the wall frame assembly of the present invention.

6 is a longitudinal sectional view of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Joining structure of a wall frame 2 Channel steel (upper frame material or lower frame material) 2a Channel web steel part 2b Channel steel flange part 2c Opening of channel steel web part 2d Lower frame material 2e Upper frame material 3 Bending surface (web part small piece) 4 Vertical frame material 4a Vertical frame material web portion 4b Vertical frame material flange portion 5 Bolt 5a Anchor bolt 5b Steel connecting rod 6 Hold down hardware 7 Nut 8 Foundation 9 Lower floor bearing wall (lower) Floor frame structure of floor) 10 Upper floor bearing wall (Wall frame structure of upper floor) 11 Floor base material 12 Floor joist 12a Spacer 13 Head tie 14 Cutout 15 Bending line

Claims (4)

[Claims] 1. A bendable and formable cut is made in a web portion of a channel steel forming an upper frame material or a lower frame material, and a vertical frame material is formed on a bent surface formed by bending and raising a small web portion piece inside the cutout. A joint structure of a wall frame, wherein the joints are joined. 2. An anchor bolt or a joining bolt for joining a foundation or a foundation to a wall is inserted into an opening formed in a web portion by bending and raising a bent surface. 2. The joint structure of the wall framework according to 1. 3. The bolt according to claim 1, wherein a bolt for joining the upper floor wall and the lower floor wall is inserted into an opening formed in the web portion by bending and raising the bent surface. Wall frame joint structure. 4. The wall frame joining structure according to claim 1, wherein the opening formed in the web portion by bending and raising the bent surface is a wiring hole or a piping hole.