JPH11216594A - Column backing metal for steel frame construction - Google Patents

Abstract

PROBLEM TO BE SOLVED: To insert the metal in a column at an appropriate length and facilitate the positioning against the column. SOLUTION: This column backing metal 1 for steel frame construction is installed at a connecting part when columns 3, 3 composed of a steel pipe and the like are connected. The metal 1 comprises the tubular first engagement portion 11 engaged in the end part of one column 31, and the second engagement portion 12 which is connected to the portion 11, formed to be slightly larger than the portion 11 in diameter, and formed in a tip thinning tapered shape for reducing its diameter as it is separated from the portion 11. While a base end part 13 of the portion 12 is abutted to an end face 33 of one column for engaging the portion in the end part of one column, the end part of the other column 32 is engaged in the portion 12 so as to weld both ends of the columns.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a column backing metal for steelwork, which is used to back up a connection portion when a column made of a steel pipe or the like is welded and connected to an adherend. is there.

[0002]

2. Description of the Related Art Conventionally, when a column is manufactured by butt-welding columns to form a column, in order to clear an ultrasonic inspection, a plate-like backing metal has been conventionally backed at a joint thereof.

[0003]

However, since the conventional backing metal is simply formed in a plate shape, it is difficult to position the backing metal when fitting it to the end of the column. Sometimes I got too far inside the column.
In view of the above, an object of the present invention is to provide a column backing metal for steel work, which can be inserted into a column by an appropriate length and can be easily positioned with respect to the column.

[0004]

According to a first aspect of the present invention, there is provided a column backing metal for steel work, comprising a column made of a steel pipe or the like as an adherend (including other columns). When connecting to the column, it is a steel backing column backing metal provided at the connection part, one end is fitted to the column, and the other end is provided with its base end abutting on the end face of the column. The adherend is abutted or fitted to the other end, and the end of the column is welded and joined to the adherend via the column. I do. Further, the column backing for steelwork according to claim 2 of the present invention is a column backing for steelwork provided at a connection portion when connecting columns made of steel pipes or the like, and And a tubular first fitting portion fitted to the end of the first fitting portion, the tubular first fitting portion being connected to the first fitting portion, having a diameter slightly larger than the first fitting portion, and being separated from the first fitting portion. And a second fitting portion formed in a tapered taper shape whose diameter is reduced as the diameter of the second fitting portion abuts on the end face of one column. The fitting portion is fitted, the end of the other column is fitted to the second fitting portion, and the ends of both columns are welded.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the column backing metal 1 for steelwork of the present invention will be described in more detail. FIG.
BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows one Example of the column backing metal 1 for steel-frame construction of this invention, (A) is a front view, (B) is a top view, (C) is a longitudinal cross-sectional view. The column backing metal 1 of this embodiment is used when, for example, a column for a building is manufactured by connecting columns 3 and 3 made of a substantially rectangular cylindrical steel pipe.

[0006] As shown in FIG.
It is formed in a square steel tube slightly smaller than the column 3. In other words, the lower part of the column backing metal 1 is the first fitting part 11 formed in a substantially rectangular cylindrical shape having a size suitable for the inner diameter of the column 3. On the other hand, on the upper part of the first fitting part 11, a second fitting part 12 having a substantially rectangular cylindrical shape slightly larger in diameter than the first fitting part 11 is continuously provided. This second fitting portion 12
Is formed so as to expand radially (horizontally) outward from the upper end of the first fitting portion 11, and the lower end surface 13 is a contact surface with the column 3. There are various sizes of the column and the column backing metal.
5 to 400 (or 500) mm. Further, it goes without saying that the size of the radius formed at each corner portion is appropriately changed according to the size of the column itself. The second fitting portion 12 is formed such that its diameter decreases as it goes upward, and the diameter of the upper end portion is formed to be slightly smaller than the inner diameter of the column 3. The size of the second fitting portion 12 is not particularly limited. For example, in FIG. 1, when the vertical length of the second fitting portion 12 is 6 mm, the second fitting portion 12
At the base end of the first fitting portion 11, it is sized to protrude radially outward by 1 mm from the outer surface of the first fitting portion 11.

Next, the column backing metal 1 having such a structure
The method for manufacturing columns by connecting columns 3 and 3 made of steel pipes for building will be described with reference to FIG. FIG. 2 is a longitudinal sectional view showing a state where the column 3 is connected using the column backing metal 1 of the above embodiment. FIG. 3 is a longitudinal sectional view showing a state where the columns 3 and 3 are connected using the column backing metal 1 of the above embodiment. As shown in FIG. 2, first, the first fitting portion 11 of the column backing metal 1 is fitted and fixed to the upper end of the lower column 31. The outer diameter of the first fitting portion 11 is
The column backing metal 1 is securely fixed to the column 3 because it is formed in a size suitable for the inner diameter of the column 3. Also, the second fitting portion 1 whose diameter is larger than that of the first fitting portion 11
Since the lower end surface 13 of the second 2 abuts on the upper end surface 33 of the column 31, the positioning of the column backing metal 1 with respect to the column 31 can be easily performed. That is, the column backing metal 1 is disposed in a state where it is inserted into the column 3 by an appropriate length.

Thereafter, the lower end of the upper column 32 is externally fitted and fixed to the second fitting portion 12 of the column backing metal 1 provided to project upward from the upper end of the lower column 31. . Since the second fitting portion 12 is formed in a tapered shape so that the distal end side is tapered, the fitting of the column 32 to the second fitting portion 12 can be easily performed. In this manner, the upper and lower columns 31, 32 are provided via the column backing metal 1.
After that, the ends of both columns 31 and 32 are welded to each other to connect the columns. Note that columns 31 and 32
A groove having a V-shape or the like may be formed at the abutting portion at the end of.

[0009] The column 1 of the present invention is composed of three or three columns.
The present invention can be used not only in the case of joining by butting but also in various cases of joining the column 3 to the adherend 5. For example, as shown in FIG. 3, it is also used to vertically connect a column 3 made of each type of steel pipe to one side surface of an adherend (column) 5 made of a square steel pipe vertically erected. can do. In this case, after the first fitting portion 11 of the column backing metal 1 of the above embodiment is fitted and fixed to the end of the column 3 arranged in the left-right direction, the distal end surface of the second fitting portion 12 Are brought into contact with one side surface of the column 5 arranged in the up-down direction, and the two columns 3 formed in the second fitting portion 12 are formed.
The gap 5 is welded. As a result, both the columns 3 and 5 and the column backing metal 1 are melted, and the columns 3 and 5 are melted.
They can be firmly integrated with each other.

The column backing metal 1 for steel work of the present invention is not limited to the configuration of the above embodiment, but can be changed as appropriate. For example, in the above embodiment, the square column backing metal 1 is used to connect the square columns 3 and 3, but the shape of the column backing metal 1 is appropriately adjusted according to the shape of the column 3. Needless to say, it can be changed. Further, the column backing metal 1 is not limited to a tubular shape, and may be divided into a plurality of pieces in the circumferential direction. For example, for the square column 3, a plate-shaped column backing plate for each surface may be used, or as shown in FIG. It may be composed of two substantially U-shaped members. Further, as shown in FIG. 6, the column backing metal 1 may be divided into two portions at diagonal corners, and may be constituted by two substantially L-shaped members.

[0011]

As described in detail above, according to the column backing metal for steelwork of the present invention, the diameter expansion contacting the upper end surface of the column at the upper part of the fitting part to one column. Since the portion is formed, positioning of the column backing metal with respect to the column can be easily performed. In addition, since the column backing fits into the column, the positioning of the column backing with respect to the column is reliably performed. Therefore, the connection work between the column and the adherend can be performed easily and reliably.

[Brief description of the drawings]

FIG. 1 is a view showing an embodiment of a column backing metal for steel work according to the present invention, (A) is a front view, (B) is a plan view,
(C) is a longitudinal sectional view.

FIG. 2 is a longitudinal sectional view showing a state when a column is connected using the column backing metal of FIG. 1;

FIG. 3 is a longitudinal sectional view showing a state where columns are connected to each other using the column backing metal of FIG. 1;

FIG. 4 is a longitudinal sectional view showing a state where the column is connected to an adherend using the column backing metal of FIG. 1;

FIG. 5 is a perspective view showing another embodiment of the column backing metal of FIG. 1;

FIG. 6 is a perspective view showing still another embodiment of the column backing metal of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 (For steel frame construction) Column backing metal 3 Column 5 Adhering material 11 1st fitting part (one end) 12 2nd fitting part (other end) 13 Base end part of 2nd fitting part 31 One Column 32 The other column 33 End face of one column

Claims (3)

[Claims] Claims: 1. A column backing metal for steelwork provided at a connecting portion when a column made of a steel pipe or the like is connected to an adherend, one end of which is fitted to the column, and the other end of which is fitted to the column. A base end portion is formed of a pipe disposed in contact with the end surface of the column, and the adherend is contacted or fitted to the other end portion, and the end portion of the column is inserted through the column. A column backing for steel construction, which is welded and joined to an adherend. 2. A column-shaped backing metal for steelwork provided at a connecting portion when connecting columns made of steel pipes or the like, wherein the first tubular fitting is fitted to an end of one of the columns. Department and
The second fitting portion, which is provided in a continuous manner with the first fitting portion, is formed to have a slightly larger diameter than the first fitting portion, and is formed in a tapered tapered shape whose diameter decreases as the distance from the first fitting portion decreases. The base end of the second fitting portion is brought into contact with the end surface of one of the columns,
The first fitting portion is fitted to the end of one column, the end of the other column is fitted to the second fitting portion, and the ends of both columns are welded. Steel backing column for steel construction. 3. The steel backing column for a steel structure is divided into a plurality of pieces in a circumferential direction.
Or the column backing for steel construction described in 2.