JPH0441072A - Method for mounting diaphragm - Google Patents

Abstract

PURPOSE:To improve the workability by tack welding a diaphragm via through- hole from the front surface side of a hollow sectional material, then fixing the diaphragm by regular welding to the hollow sectional material on the inner part side. CONSTITUTION:The diaphragm 1 is mounted to the inner side of the hollow sectional material (column) 2. The through-holes 5 are, thereupon, formed to the side wall 2A of the hollow sectional material 2. The diaphragm 1 is tack welded via the through-hole 5 to the hollow sectional material 2 from the surface side of the hollow sectional material 2 and thereafter the diaphragm 1 is fixed by regular welding to the hollow sectional material 2 on the inner part side of the hollow sectional material 2. The diaphragm is easily mounted to the inside of the hollow sectional material in this way.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for attaching a diaphragm inside a hollow cross-section member such as a square steel pipe column, and is particularly applicable to forming columns of housing units. .

[Background technology]

2. Description of the Related Art Conventionally, in housing units and the like constituting a unit house, a diaphragm is sometimes provided inside a column in order to increase the strength of a connection portion between a column and a beam.

As shown in Fig. 4, the method for installing this diaphragm is to place the diaphragm 40 within a pillar 43 while supporting it with a jig 45 such as a magnet, and use a welding torch for gas welding or a welding torch for arc welding. A method was used in which a welding rod or the like was inserted into the pillar 43 and the diagonal groove (group) portion of the end edge 41 of the diaphragm 40 was welded.

[Invention or problem to be solved]

However, when welding is performed while supporting the diaphragm 40 with the jig 45, the jig 45 collides with the welding torch, welding rod, etc. and becomes an obstacle, resulting in a problem of low workability.

It was also considered to arrange the jig 45 on the opposite side of the diaphragm 40 so as not to interfere with the welding torch etc.
In that case, a jig 45 having substantially the same length as the pillar 43 is required, which poses a problem in that it takes time to insert and remove the jig into and out of the pillar 43, and the workability is low.

An object of the present invention is to provide a diaphragm attachment method that can easily attach a diaphragm inside a hollow cross-sectional member and improve workability.

[Means to solve the problem]

The diaphragm attachment method of the present invention involves forming a through hole in the side wall of a hollow cross-sectional material, inserting a diaphragm into the hollow cross-sectional material and placing it at the position of the through hole, and placing the diaphragm on the surface side of the hollow cross-sectional material. The diaphragm is temporarily attached to the hollow cross-sectional material through the through hole, and then the diaphragm is permanently welded to the hollow cross-sectional material on the inside of the hollow cross-sectional material.

[Effect]

In the present invention, the diaphragm is temporarily attached through the through hole formed in the hollow cross-sectional material, so there is no need for a jig to support the diaphragm during the main welding.
The welding torch, etc. will not collide with the jig, and work efficiency will be improved.

In addition, since the diaphragm is temporarily attached using the through hole formed in the hollow cross-section material, it is possible to apply a welding torch, etc. from the surface side of the hollow cross-section material. Since there are no interferences between the two, work efficiency is improved, and the above objective is achieved.

〔Example〕

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

1 and 2 show the end of a square steel tube type column 2 to which a diaphragm 1 according to the invention is fixed.

As shown in FIG. 3, the diaphragm 1 includes a backing plate 3 formed in a size and shape to approximately fit into the inner surface of the column 2, and a welded plate fixed to one side of the backing plate 3. It consists of plate 4. The welding plate 4 is formed so that the dimensions 1 + and 1 t in the direction along one surface of the backing plate 3, that is, in the cross-sectional direction of the column 2, are smaller than the dimensions L1 and L2 of the backing plate 3, that is, one size smaller. ing. However, the thickness t is thicker than the thickness T1 of the backing notebook 3.

Through holes 5 are formed in the side walls 2A of the columns 2, respectively.

The through hole 5 is formed at a position where the diaphragm l is provided, that is, at a position a predetermined distance away from the end of the column 2.

Further, at the end of the column 2, four backing plates 10 bent into an abbreviated shape are fixed to each corner of the inner surface of the column 2,
An end plate 11 is welded and fixed to the column 2 via this backing plate 10.

In this embodiment, the backing plate 3 and the welding plate 4 form a diaphragm l, and the diaphragm l is inserted into the column 2 up to the through hole 5 while being supported by a jig such as a magnet.

In this state, the backing plate 3 is temporarily welded to the column 2 by applying a welding torch, welding rod, etc. to the through hole 5 from the front side of the column 2.

Next, remove the jig that supported diaphragm 1,
The diaphragm 1 is fixed to the pillar 2 by inserting a welding torch or the like into the end of the pillar 2 and permanently welding the abbreviated groove 12 portion formed by the welding plate 4, the backing plate 3, and the pillar 2.

Further, when fixing the end plate 11, the backing plate 10 is boiled and welded to the column 2, and then the end plate L7-1] is welded and fixed.

According to this embodiment, the backing plate 3 of the diaphragm 1 is temporarily attached using the through hole 5 of the pillar 2, so when the diaphragm 1 is actually welded, a tool such as a magnet that supports the diaphragm 1 is used. The tool can be removed and does not get in the way of the welding torch, etc., making welding work easier.

Further, the diaphragm 1 can be temporarily attached from the surface side of the column 2 by using the through hole 5 of the column 2, and there is no interference with the jig, so that work efficiency can be improved.

Furthermore, a through hole 5 for temporarily attaching the backing plate 3 is provided.
Since they can be extremely small, the strength of the pillars 2 will not be reduced, and if the surface is ground and finished as appropriate, they will be hardly noticeable and will not spoil the appearance.

Further, since the diaphragm 1 is constructed of the backing plate 3 and the welding plate 4, the size of the root interval can be set by simply selecting the size of the welding plate 3 appropriately without any special processing. In other words, by changing the size of the welding plate 4, the route spacing can also be changed.
If the diaphragm 1 is formed of a welding plate 4 of an appropriate size depending on the required welding strength, etc., the root spacing can be set very easily.

Furthermore, since the backing plate 3 and the welding plate 4 are made separate, there is no need for cutting work to widen the root spacing as in the past, and the beveling of the welding plate 4 is selected according to the root spacing. Since it is only necessary to perform the following steps, the work becomes simple and workability and productivity can be improved.

In addition, since the backing plate 3 is almost fitted inside the column 2, it acts as a backing plate during welding, and there is no need to prepare a separate backing metal, reducing the number of parts and making it easy to handle. Become.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and the present invention includes modifications, improvements, etc. within a range that can achieve the purpose of the present invention.

For example, in the embodiment described above, the diaphragm l was composed of the backing plate 3 and the welding plate 4, but it may be composed of a single plate. However, the configuration with two plates has the advantage that the root spacing can be easily set.

In addition, although one through hole 5 was formed on each side of the column 1, two through holes 5 may be formed on two opposing sides (in other words, it is necessary to support the diaphragm 1 with a jig during main welding). To prevent this, a through hole 5 that can be welded may be formed for temporary attachment.

Furthermore, in the previous embodiments, the end of the welding plate 4 was cut diagonally to form a so-called diamond-shaped groove 12, but the groove may have another shape, such as a J-shape. Further, the size of the welding plate 4 relative to the backing plate 3 may be appropriately set according to the root spacing, groove depth, and the like.

Further, the present invention is not limited to pillars of unit houses, but can be widely applied to diaphragms provided inside hollow cross-section members having a hollow cross-section, such as square or round shapes. Note that the shape and size of the diaphragm may be formed in accordance with the cross-sectional shape and size of the hollow cross-sectional material, and the through holes may be formed at appropriate locations on the hollow cross-sectional material.

■...Diaphragm, 2...Column, 2A...Side wall,
3... Backing plate, 4... Welding plate, 5...
...Through hole, 12...Bevel.

Claims (1)

[Claims] (1) A method for attaching a diaphragm inside a hollow cross-sectional material, which comprises forming a through hole in the side wall of the hollow cross-sectional material, inserting the diaphragm into the hollow cross-sectional material, and placing it at the position of the through hole. , a diaphragm attachment method characterized in that the diaphragm is temporarily attached to the hollow cross-sectional material from the surface side of the hollow cross-sectional material through the through hole, and then the diaphragm is permanently welded to the hollow cross-sectional material on the inside side of the hollow cross-sectional material. .