JP2524418B2 - Connection structure of columns and beams - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a joint structure of a column and a beam in a housing unit, a frame-structured house, other buildings, and the like.

[Background technology]

In recent years, industrialized houses are known in which a plurality of housing units formed in a box shape or the like are stacked to construct a house.
The frame of this housing unit is formed by connecting a plurality of columns and beams. The connection between these columns and beams is, for example,
As shown in Japanese Utility Model Publication No. 59-16402, it is carried out by welding directly, or by welding through a joint made of C channel material.

That is, in the case of direct welding, beams which are made of C-channel material and are integrally formed with flanges above and below the web are welded to the adjacent side surfaces of the column. On this occasion,
An end diaphragm and an inner diaphragm for strength reinforcement are respectively welded in the columns where the flanges of these beams are welded.

However, since the welding of the diaphragm, particularly the inner diaphragm, to the pillar is performed inside the narrow pillar and at a position inwardly from the end to some extent, the workability is extremely poor and it is a difficult work.

Therefore, as shown in FIG. 5, one side surface of the pillar 101 has a width at the base end portion that is substantially equal to the width of the side surface of the pillar 101,
There has been proposed a structure in which a diaphragm is omitted by welding a joint member 102 made of a C channel material having a width narrower than that of a tip end thereof and welding a beam 103 to the joint member 102.

[Problems to be Solved by the Invention]

In the structure shown in FIG. 5, since the joint member 102 is welded to the column 101 with a wide width, the diaphragm is certainly unnecessary when the load is light. However, when the beam 103 receives a heavy load, there is a problem that sufficient strength cannot be secured without the diaphragm.

Further, the joint member 102 and the beam 103 are both webs 102A and 103A.
And the upper and lower flanges 102B and 103B, in particular, among the overlapping webs 102A and 103A, the web 10 of the joint member 102.
2A has little value in terms of weight, and both webs
Since 102A and 103A have the widest width, there is a high possibility that bending or the like will occur. If bending occurs, there is a problem that a gap is created between the two and welding becomes insufficient.

Further, the welded portion between the web 102A of the joint material 102 and the pillar 101 is
As shown in FIG. 6, since the corner portion 101A of the column 101 is an R surface for the convenience of processing, sufficient welding strength may not be obtained in some cases, resulting in unstable welding quality. is there.

An object of the present invention is to provide a joint structure that facilitates welding work and that can connect columns and beams with weight advantage.

[Means for solving the problem]

According to the present invention, when welding a beam having a substantially U-shaped cross-section to a column having two surfaces that are substantially orthogonal to each other, in order to eliminate overlapping of web portions in a conventional joint member made of a C channel material,
Using a pair of plate-shaped brackets that are separated by a predetermined distance and fixed to one side of the column, the flange portions of the beam are welded to these brackets, and one end of the beam web is extended to the other side of the column. It is welded to.

Specifically, the present invention is a pillar having two adjacent surfaces that are substantially orthogonal to each other, and is projected in a direction substantially orthogonal to one of the two surfaces of the pillar, and at a predetermined interval in the axial direction of the pillar. A pair of flat plate-shaped brackets that are separated and welded to the pillars substantially in parallel,
A web and a flange formed on both edges of the web are formed in a substantially U-shaped cross section, and both ends of the flange are provided with a beam formed with a projection made of a partially cut web. Both flanges of the beam are welded to the bracket, respectively, and the protrusion of the web is welded to the other surface of the two surfaces of the pillar. is there.

[Action]

In the present invention, a pair of brackets are attached to one surface of the column at a predetermined distance in advance, the flanges on both sides of the beam are welded to these brackets, and the projection of the web of the beam is attached to the other side of the column. Weld to the surface. At this time, the welding sequence may be such that the projection of the beam and the surface of the column are welded first, the bracket is welded to the column in accordance with the flange of the beam, and the bracket and the beam are also welded.

In welding the bracket and the flange of the beam, since there is no member corresponding to the web in the conventional joint material, both can be welded easily and sufficiently. In addition, the welding of the projections and the pillars on the beam web does not occur at the corners of the pillars, but rather in the so-called disjointed state where the circles of the pillars directly contact the surface of the web of the beams. It can be done easily and fully. As a result, the welding quality between the column and the beam becomes stable.

Further, since there is no portion corresponding to the web in the conventional joint material, the weight of the welded structure can be reduced.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings. In each of the embodiments described below, the same reference numerals are used for the same or corresponding components, and the description of the overlapping portions will be omitted or simplified.

1 to 3 show a first embodiment of the present invention. In the figure, the pillar 10 is formed in a square pillar shape, and
In FIGS. 1 and 2, on the front side, one surface 11 and the other surface 12 are shown as two surfaces that are substantially orthogonal to each other.

On one surface 11 of the pillar 10, a pair of flat plate-shaped brackets 21, 22 spaced apart at a predetermined distance in the axial direction of the pillar 10 so as to be substantially orthogonal to the surface 11 of the pillar 10 and project substantially in parallel. Placed and pillars
10 and welded portions 31 and 32, respectively. The dimensions of these brackets 21 and 22 on the side of the pillar 10 are the one surface 11 of the pillar 10.
The widths of the brackets 21 and 22 are substantially equal to the width of the brackets 21, while the tip ends of the brackets 21 and 22 are tapered.

A beam 40 having a substantially U-shaped cross section is provided between the pair of brackets 21 and 22.
This beam 40 is formed by the web 40 and the flanges 42, 43 integrally formed orthogonally to the upper and lower edges of the web 41.
It consists of and. Flange at one end of beam 40
42 and 43 are cut out over a predetermined length to form a protrusion 44 of only the web 41.

A pair of brackets 21,22 and upper and lower flanges 42,43 of beam 40
Are fixed to each other at the welded portions 33 and 34, while the outer edge of the protrusion 44 of the beam 40 and the other surface 12 of the column 10 are fixed to each other at the welded portion 35.

The pillar 10 and the brackets 21 and 22 in this embodiment
The welding order of the welded portions 31 to 35 of the beam 40 is not limited to that of performing the pillar 10 and the brackets 21 and 22 and then the pillar 10 and the brackets 21 and 22 and the beam 40 as described above. First, pillar 1
It is also possible to weld 0 to the protrusion 44 of the beam 40 and then to weld the brackets 21 and 22 to the pillar 10 and the beam 40, and the order thereof does not matter.

According to this embodiment as described above, there are the following effects.

That is, since the pair of flat plate-shaped brackets 21 and 22 are used for joining the column 10 and the beam 40, the web in the conventional connecting member made of the C channel material can be eliminated and the weight can be reduced. Also, since there is no portion corresponding to the web of the joint material, the brackets 21 and 22 and the flange 4 of the beam 40 are
When welding with 2,43, bracket 21,22 with flange 42,
It is also possible to make close contact along the surface of 43 so that welding can be performed reliably and welding quality can be improved.

Further, since the pillar 10 and the beam 40 are directly joined by the protrusions 44 as well as via the brackets 21 and 22, sufficient welding strength can be obtained, and the diaphragm is not necessarily required in the pillar 10. Further, since the welding of the surface 12 of the column 10 and the projection 44 of the beam 40 is performed in a bare state, not in a corner portion, but in a flat portion, sufficient welding strength can be obtained from this point as well.

Since the column 10 and the beam 40 are joined to each other on the two surfaces 11 and 12 that are substantially orthogonal to each other, the welding strength can be sufficiently increased as a whole.

 FIG. 4 shows a second embodiment of the present invention.

In this embodiment, the pair of brackets 21 and 22 are arranged inside the upper and lower flanges 42 and 43 of the beam 40, and other points are the same as in the first embodiment.

Also in this embodiment, the same operation and effect as those of the first embodiment can be obtained.

The present invention is not limited to the first and second embodiments, and modifications, improvements, etc. within a range in which the object of the present invention can be achieved are included in the present invention.

For example, the pillar 10 does not necessarily have to be a quadrangular prism, and may have another shape such as a triangular prism or an L-shaped steel, that is, two adjacent surfaces that are substantially orthogonal to each other may be used.

Further, the brackets 21 and 22 are not limited to the shape in which the side welded to the pillar 10 is wide, and may be other shapes such as a rectangle.

Furthermore, in welding the brackets 21 and 22 and the pillar 10, similar to a general welding operation, a strip-shaped backing metal is partially welded in advance at a position where the brackets 21 and 22 of the pillar 10 are welded. Good.

Further, the diaphragm in the pillar 10 does not necessarily have to be provided, but may be provided as needed.

〔The invention's effect〕

As described above, according to the present invention, there is an effect that welding work is easy and sufficient strength can be secured.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing a first embodiment of the present invention, FIG. 2 is an exploded perspective view of the embodiment, FIG. 3 is a sectional view of the embodiment, and FIG. FIG. 5 is a partially cutaway perspective view showing a second embodiment of the present invention, and FIGS. 5 and 6 are a perspective view and a sectional view showing a conventional example. 10 …… Pillar, 11 …… One side, 12 …… Other side, 21,22…
… Brackets, 31 to 35… Welds, 40… Beams, 41… Web, 42,43… Flange, 44… Projections.

Claims (1)

(57) [Claims] 1. A column having two adjacent surfaces that are substantially orthogonal to each other, and a column that projects in a direction substantially perpendicular to one of the two faces of the column and is substantially parallel to the column at a predetermined distance. A pair of flat plate-shaped brackets welded to the pillars, a web and flanges provided on both edges of the web are formed in a substantially U-shaped cross section, and both end flanges are partially cut away. A beam having a projection formed of a web, both flanges of the beam being welded to the bracket respectively, and the projection of the web being welded to the other surface of the two surfaces of the column. A joint structure of columns and beams, which is characterized in that