JPH0829463B2 - Beam-column joint fitting in a housing unit and method of manufacturing the same - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a pillar-beam joining metal fitting in a housing unit configured by connecting a plurality of pillars and beams, and a manufacturing method thereof.

[Background technology]

In recent years, a method of transporting a plurality of types of housing units manufactured in advance in a factory to a construction site and combining them to build a house has been adopted. Usually, a housing unit forms a box-type frame by connecting the upper ends and the lower ends of the four pillars arranged at the four corners with each other to form a box-shaped frame. It consists of panels and floor panels.

By the way, the connection between the column and the beam that constitutes the frame of this type of housing unit is, for example, as shown in Japanese Utility Model Publication No. 59-16402, a method of directly welding the beam to the column, or to the column. For example, a method of welding a beam through a joint made of C-channel material is adopted.

That is, in the direct welding method, as shown in FIG.
Beams 102 are respectively formed on the side surfaces adjacent to each other at the end of the pillar 101.
The ends of are welded directly. Beam 102 is made of C-channel material and has horizontal flanges above and below a vertical web 102A.
102B is integrally formed. An end diaphragm 103 and an inner diaphragm 104 for reinforcing strength are welded to the pillar 101, respectively.

However, since the welding of the diaphragms 103 and 104 to the column 101, particularly the welding of the inner diaphragm 104, must be performed inside the narrow column 101 and at a position that is inward from the end to some extent, workability is extremely high. Bad and difficult task.

So, as a method to save the welding work of the diaphragm,
A method of welding through a joint made of C-channel material has been proposed. As shown in Fig. 6, the base end is a pillar.
A connecting member 107 made of C-channel material having a width substantially equal to the width of the side surface of 106 and a tip portion formed to have a width narrower than that is welded to one side surface of the pillar 106, and the connecting member 107
The beam 108 is welded to the structure.

[Problems to be Solved by the Invention]

By the way, in the structure shown in FIG.
Since it is welded with a wide width, there is no problem in strength even if the diaphragm is certainly omitted in the case of light load. However, when the beam 108 receives a heavy load, there is a problem that sufficient strength cannot be ensured without the diaphragm.

It is an object of the present invention to provide a pillar-beam coupling fitting in a housing unit that can eliminate the welding work in the pillar and can sufficiently connect the pillar and the beam to withstand a heavy load.

Another object of the present invention is to provide a manufacturing method capable of inexpensively and accurately manufacturing the above-mentioned beam-column joint fitting and manufacturing the structure having higher rigidity.

[Means for solving the problem]

Therefore, the pillar-beam joint fitting of the present invention is a pillar-beam joint fitting in a housing unit including a plurality of pillars and a plurality of beams connected between end portions of these pillars,
An L-shaped metal fitting body having two vertical walls that are orthogonal to each other and fixed to the upper and lower end surfaces of the metal fitting body in parallel with each other, and a pillar can be connected to the outer surface on one side of each of the vertical walls of the metal fitting body. A pair of end face members that form a pair of beam connecting parts to which a beam can be connected together with the tip, and two vertical walls fixed between the pair of end face members and on the open sides of the two vertical wall corners of the metal fitting body. And an auxiliary member having an L-shaped cross section that forms a substantially rectangular tube shape together with the wall.

Here, the metal fitting body may be, for example, one in which a plate material is bent into an L shape to form two vertical walls that intersect at right angles, or one formed from a mold. Similarly, section L
As for the auxiliary member having a character shape, for example, a plate material bent at a right angle to have an L-shaped cross section, or an L-shaped steel cut into a predetermined length may be used.
In addition, sticking is not necessarily limited to welding,
It is sufficient that both can be firmly fixed.

Further, the method of manufacturing a beam-column joint fitting of the present invention is a method of manufacturing a beam-column joint bracket in a housing unit including a plurality of columns and a plurality of beams connected between the ends of the columns. Then, a plate material is bent into an L shape to form a metal fitting body having two vertical walls that are orthogonal to each other. A pillar can be connected to the upper and lower end surfaces of the metal fitting body on one outer surface of the metal fitting body, and A pair of end face members that form a pair of beam connecting parts to which beams can be connected together with each vertical wall tip end are welded in parallel to each other, and two vertical wall corner portions of the metal fitting body are opened between the pair of end face members. It is characterized in that an auxiliary member having an L-shaped cross section is welded to the side together with the two vertical walls.

[Work]

In the post-beam joint fitting of the present invention, the two vertical walls of the fitting main body and the auxiliary member are formed in a rectangular tube shape, and the end surface members corresponding to the upper and lower surfaces thereof function as a conventional diaphragm. It is possible to connect columns and beams that can withstand loads. Moreover, it is possible to eliminate the conventional welding work in the pillar.

Further, in the manufacturing method of the present invention, since the plate body is bent into an L-shape to form the metal fitting body having two vertical walls which are orthogonal to each other, that is, the plate material need only be bent into the L-shape. It can be manufactured more inexpensively and more accurately than when molding from a mold.

In addition, on the upper and lower end surfaces of the metal fitting body, a pillar can be connected to one outer surface of the metal fitting body, and a pair of end face members forming a pair of beam connecting parts with which the beams can be connected together with each vertical wall tip of the metal fitting body. An auxiliary member having an L-shaped cross section is welded in parallel with each other, and between the pair of end face members and on the opening side of the two vertical wall corner portions of the metal fitting body together with the two vertical walls to form a substantially rectangular tube shape. Since the column-beam joining metal fitting is manufactured, that is, all the members are integrated by welding, it is possible to form a structure having higher rigidity.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a perspective view showing the relationship between a pillar-beam joint fitting and pillars and beams of this embodiment, and FIG. 2 is an exploded perspective view showing the pillar-beam joint fitting. In these drawings, 1 is a column-beam joining metal fitting of the present embodiment, 2 is a square prismatic column, and 3 and 4 are beams made of C channel material which is a shaped steel. The beam 3 is a beam on the short side (wife side) of the housing unit, and the beam 4 is a beam on the long side (girder side) of the housing unit.

The beam-column joint fitting 1 of this embodiment is an L-shaped fitting body 10
And a pair of end surface members 21 and 22 fixed in parallel to the upper and lower end surfaces of the metal fitting body 10, and between the pair of end surface members 21 and 22 and to the L-shaped corner open side of the metal fitting body 10. The auxiliary member 30 has an L-shaped cross section and the reinforcing members 40 and 50.

The metal fitting body 10 includes two vertical walls 11 and 1 which are orthogonal to each other.
It is formed in an L shape having 2. At the tip of each vertical wall 11 and 12, a guide edge 11A, which is bent inward in a slope shape and then slightly protrudes outward (direction parallel to each vertical wall 11 and 12), 12B is formed.

Of the pair of end face members 21, 22, the upper end face member 21
Is formed into a flat trapezoidal shape that is notched at about 45 ° from one side to the middle of the tip, and its outer surface (upper surface) is a connection surface 14 to which the end of the pillar 2 can be connected. ing. The lower end face member 22 is cut out in parallel with the vertical wall 11 from the middle of one side toward the other side, and then is substantially cut toward the middle of the tip.
Notched at 45 °.

On one side of these upper and lower end face members 21 and 22, that is, on the side corresponding to the guide edge 11A of the vertical wall 11 of the metal fitting body 10, after being bent inward toward each other in a slope shape, each of them is directed outward. Guide edges 21A, 21A that slightly project toward are formed. Here, the guide edges 21A, 21A form one beam connecting portion 15 to which the beam 3 can be connected together with the guide edge 11A of the metal fitting body 10. On the other hand, the tip, that is, the metal fitting body
On the side of the vertical wall 12 of the ten corresponding to the guide edge 12B, guide edges 21B and 22B are formed which are respectively bent downward in a slope shape and then slightly project outward. Here, the guide edges 21B, 21B form the other beam connecting portion 16 to which the beam 4 can be connected together with the guide edge 12B of the metal fitting body 10.

The auxiliary member 30 includes two vertical walls 1 of the metal fitting body 10.
The corners 1 and 12 are fixed to the open sides of the corners, and are formed in an L-shaped cross section that forms a substantially rectangular tube shape together with the vertical walls 11 and 12.
That is, it is formed in an L shape having two vertical walls 31, 32 parallel to the vertical walls 11, 12 of the metal fitting body 10. Each of the vertical walls 31, 32 has a width dimension substantially the same as the width dimension of one side of the pillar 2, and a height dimension from the height dimension between the upper and lower end surface members 21, 22 to the thickness dimension of the reinforcing member 40. It is formed to the size minus.

The reinforcing member 40 is formed in a rectangular plate shape whose thickness is slightly thicker than the thickness dimension of the metal fitting body 10 and the end surface members 21 and 22, and is fixed to the inner surface side of the lower end surface member 22. Further, the reinforcing member 50 is formed in a substantially triangular plate shape, and is fixed between the vertical wall 32 of the auxiliary member 30 and the reinforcing member 40 in a standing state. In addition, 17 is a reinforcing member 50.
The end face member 22 and the reinforcing member near the fixing position of
It is a bolt insertion hole for up-and-down joining formed through 40.

Next, a method for manufacturing the beam-column joint fitting 1 of this embodiment will be described.

First, in order to manufacture the metal fitting body 10, for example, a plate material such as a steel plate is preliminarily cut into a predetermined shape by a press machine or the like, and then bent into an L shape to form two perpendicular walls 11 and 12.
The metal fitting body 10 having the above is formed. In addition, the guide edges 11A and 12B are previously bent at the tips of the vertical walls 11 and 12.

In addition, other members, that is, the end surface members 21 and 22, the auxiliary member 3
Regarding the 0 and the reinforcing members 40 and 50, the plate material is cut into a predetermined shape in advance, and appropriately bent to form the shape shown in FIG.

Here, with respect to the metal fitting body 10, each member 21, 22, 30, 40, 50
In order to assemble, the end surface members 21, 22 are first applied to the upper and lower end surfaces of the metal fitting body 10 so as to be parallel to each other and at a right angle to the vertical walls 11, 12, and the joint portions thereof are welded. That is, L
Weld along the shape. Next, the reinforcing member 40 is attached to the end surface member 22.
Insert it into the inner surface of and weld it at the specified position. Next, between the upper and lower end face members 21, 22 and the two vertical walls 11, 12 of the metal fitting body 10.
An auxiliary member (30) is inserted into the corner opening side of (1), and the abutting portions of the auxiliary member (30), the metal fitting body (10), the upper end member (21) and the reinforcing member (40) are welded. Finally, the reinforcing member 50 is inserted and the joint portion is welded. Thus, the beam-column joint fitting 1 is manufactured.

Now, assembling the frame of the housing unit using the beam-column joint fitting 1 manufactured in this manner is performed as shown in FIGS. 3 (A) to 3 (C).

First, as shown in FIG. 3 (A), the column-beam joint fittings 1 are welded to both ends of the two columns 2 in a predetermined direction, and the beams are connected between the beam connecting portions 15 of the column-beam joint fittings 1. 3 is welded to form the gable frame 5.

Next, as shown in FIG. 3 (B), the two wife frames 5
Are arranged facing each other, and the beam 4 is welded between the beam connecting portions 16 facing each other. As a result, as shown in FIG. 3C, the frame of the box-type housing unit 6 is formed.

The inner and outer wall panels, the ceiling panel, and the floor panel are attached to the frame thus formed, if necessary.
Further, interior parts such as built-in furniture are attached to form a housing unit. Therefore, a unit house can be constructed by appropriately combining the housing units. At this time, the housing units are connected in the vertical direction by inserting bolts into bolt insertion holes 17 penetrating the end surface member 22 and the reinforcing member 40 and tightening the nuts.

Therefore, according to this embodiment, the pillar 2 and the beams 3 and 4 in the housing unit are connected via the pillar-beam joint fitting 1. At this time, the two vertical walls 11 and 12 of the metal fitting body 10 of the pillar-beam joining metal fitting 1 and the two vertical walls 31 and 32 of the auxiliary member 30 have a rectangular tube shape, and correspond to the upper and lower surfaces of the rectangular tube shape. Since the end surface members 21 and 22 that perform the role of the conventional diaphragm,
It is possible to connect columns and beams that can withstand heavy loads. Moreover, it is possible to eliminate the welding work of the inner diaphragm, which is the work inside the pillar.

Further, the reinforcing member 40 is fixed to the inner surface of the end surface member 22, and a substantially triangular shape is fixed between the reinforcing member 40 and the auxiliary member 30 in a state where the reinforcing member 50 is erected. The strength of the upper and lower joints can be increased.

Further, in manufacturing the metal fitting body 10, since the metal plate body is bent into an L-shape to manufacture the metal fitting body 10 having the two vertical walls 11 and 12 which are orthogonal to each other, the metal fitting body 10 is molded more than the case of molding. It can be manufactured at low cost and 2
The perpendicularity of two vertical walls 11 and 12 can be processed with high precision.

Further, since the end face members 21, 22, 22, the auxiliary member 30, and the reinforcing members 40, 50 are fixed to the metal fitting body 10 by welding, respectively, an integrated structure can be formed, so that a structure having higher rigidity can be formed. You can Moreover, since all of these welding operations can be performed from the outside, the welding operations can be performed easily and efficiently.

It should be noted that the present invention is not limited to the above-described embodiments, and modifications and improvements within a range in which the object of the present invention can be achieved are included in the present invention.

For example, the beam connecting portions 15 and 16 are not limited to the configuration described in the above embodiment, and may have the configuration shown in FIG. This is the guide edge 1 that makes up each beam connection 15,16.
1A, 21A, 22A, 12B, 21B, 22B is extended in the longitudinal direction of each beam 3, 4, respectively, and long holes 61A, 62A, 61B, 62B are formed in the members on the upper surface side that fit together. is there. That is, the long hole 61A is formed in the upper flange of the beam 3, the long hole 62A is formed in the guide edge 22A, and the long holes 61B, 62B are formed in the upper and lower flanges of the beam 4, respectively. Therefore, in this case, the beams 3 and 4 can be welded downward from the elongated holes 61A, 62A, 61B, and 62B to the beam-column joint fitting 1.

Further, the housing unit to which the beam-column joint fitting of the present invention can be applied is not limited to the box-type frame of the above-mentioned embodiment,
It can also be applied to a so-called U-shaped frame in which the upper beam is not welded.

〔The invention's effect〕

As described above, according to the beam-column joint fitting of the present invention, welding work in the column can be eliminated, and the column and the beam that can sufficiently withstand a heavy load can be connected.

Moreover, according to the manufacturing method of the present invention, the above-described beam-column joint fitting can be manufactured inexpensively and accurately, and can be manufactured as a structure having higher rigidity.

[Brief description of drawings]

1 to 3 show an embodiment of the present invention.
The figure is a perspective view showing the relationship between the pillar-beam joint fitting and the pillar and the beam.
FIG. 2 is an exploded perspective view of the beam-column joint fitting, and FIG. 3 is an explanatory view showing a working process of the frame of the housing unit. Fourth
The figure is a perspective view showing a relationship between a pillar-beam joint fitting and pillars and beams in a modification of the present invention. FIG. 5 and FIG. 6 are perspective views showing conventional connection structures of columns and beams, respectively. 1 …… Column-beam joining metal fittings, 2 …… Pillars, 3,4 …… Beams, 6 …… Housing units, 10 …… Metal fitting body, 11,12 …… Vertical walls, 14…
… Connecting surface, 15 …… One beam connecting part, 16 …… Other beam connecting part, 21,22 …… End face member, 30 …… Auxiliary member.

Claims (2)

[Claims] 1. A pillar-beam joining metal fitting in a housing unit configured to include a plurality of pillars and a plurality of beams connected between end portions of the pillars, the pillar-beam joining metal fitting having two orthogonal vertical walls. A bracket-shaped metal body and a pair of metal members that are fixed to the upper and lower end surfaces of the metal body in parallel with each other. And a pair of end edge members forming the beam connection portion, and fixed between the pair of end surface members and on the open side of the two vertical wall corners of the metal fitting body to form a substantially rectangular tubular shape together with the two vertical walls. A column-beam joint fitting in a housing unit, comprising: an auxiliary member having an L-shaped cross section. 2. A method of manufacturing a pillar-beam joining metal fitting in a housing unit comprising a plurality of pillars and a plurality of beams connected between the ends of the pillars, wherein a plate material is folded into an L shape. A metal fitting main body having two vertical walls that are bent at right angles is formed, and a pillar can be connected to the upper and lower end surfaces of the metal fitting main body on one outer surface of the metal fitting main body, and a beam is connected to each vertical wall tip of the metal fitting main body. A pair of end face members forming a possible pair of beam connection parts are welded in parallel to each other, and between the pair of end face members and on the two vertical wall corner open sides of the metal fitting body together with the two vertical walls. A method of manufacturing a beam-column joint fitting in a housing unit, wherein an auxiliary member having an L-shaped cross section that forms a substantially rectangular tube shape is welded.