JPH0588788U - Metal plate for flange welding of column - Google Patents

Abstract

(57) [Summary] [Purpose] Positioning of the end of the flange welding pad on the column 1 on the inner surface can be performed easily, quickly, and accurately, and temporary attachment of the pad to the column 1 is easy. To be able to. [Structure] A plurality of positioning protrusions 31 for restricting the amount of protrusion with respect to the end surface of the column 1 are provided on the outer surface of the metal cover body 3 along the inner surface at the end of the column 1 on the side where the inner surface is attached.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a flange welding metal plate used when welding flanges to both ends of a column.

[0002]

[Prior Art]

 Conventionally, for example, when welding a flange such as a flange for closing a column, a flange for mounting a beam, or a flange for connecting columns to the end of a steel column for construction, the flange is directly attached to the end of the column. If fillet-welding is performed in a butt state, the welding margin is small and a sufficient bonding force cannot be obtained.Therefore, use a flange welding pad along the inner surface at the end of the column. Part is attached to the inner surface at the end of the column so as to protrude by a certain dimension with respect to the end of the column, and in this state, the pad is temporarily welded to the inner surface of the column, and after that, , The flange is connected to the end of the column in a floating manner through this pad, and the peripheral groove formed between the flange and the end of the column is used to make the column end and the pad and the flange. It is wide and It is to be firmly bonded by welding parts entire circumference.

[0003]

[Problems to be solved by the device]

 By the way, when the pad is temporarily fixed to the inner surface of the end of the column, one end in the width direction of the pad is inserted along the inner surface of the end of the column while the other end is attached to the end surface of the column using a scale. It is necessary to align so that it protrudes outward from the column by a certain amount, and while maintaining that state, weld the pad and the column at several points and temporarily fix them. The work of temporarily fixing to the inner surface of the end was very complicated, and there was a problem that it was troublesome.

The object of the present invention is to devise the structure of the backing metal body so that the positioning of the gold body to the end of the column can be performed easily, quickly and accurately. An object of the present invention is to provide a column welding weld bar for a column, which enables quick and easy temporary attachment of the cover plate to the column.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a metal plate for welding a flange 2 to the end of a column 1 in a floating manner, wherein the inner surface of the metal plate main body 3 along the inner surface of the end of the column 1 is attached. A plurality of positioning protrusions 31 that restrict the amount of protrusion of the column 1 from the end face are provided on the outer surface of the installation side.

[0006]

[Action]

 When temporarily attaching the pad 3 to the inner surface of the end portion of the column 1, by inserting one end of the pad main body 3 in the width direction along the inner surface of the end portion of the column 1, the positioning protrusions 31 of the respective positioning projections 31 are inserted. By utilizing the contact with the end of the column 1, the other end of the pad main body 3 can be positioned so as to project outward from the end surface of the column 1 by a certain dimension, and the positioning state can be determined as described above. While being held by each protrusion 31, each protrusion 31 and the end face of the column 1 can be spot-welded and temporarily fixed.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. In FIGS. 1, 4 and 5, reference numeral 1 is a square tubular steel column used as an aggregate of a building or the like, and an end portion of the column 1 is For example, a flange 2 such as a closing flange on the upper part of the column, a mounting flange for the beam, or a connecting flange for the column is welded in a floating manner via a flange welding metal plate body 3.

Since the backing plate main body 3 is fixed along the inner surface of the end portion of the column 1, as shown in FIGS. It is composed of a strip-shaped metal plate that is divided into four equal sides and has a long shape with one side being short and the other side being short. A plurality of positioning protrusions 31 that restrict the amount of protrusion with respect to

The positioning projections 31 are formed by protruding the patch metal body 3 from the inner surface side so as to project a semi-shaped projection having a circular cross section by approximately 1 to 1.5 mm, and Plural pieces are placed at the optimum temporary fixing points. The positioning projection 31 may have a cylindrical shape as shown in FIGS. 2 and 3, and may have various shapes such as a prismatic shape and a wedge shape.

Further, the backing plate main body 3 may have a shape in which the inner peripheral surface of the column 1 is divided into four, as described above, or, for example, the inner peripheral surface of the column 1 may be divided into two. The number of divisions is not particularly limited.

Further, the cross-sectional shape of the column 1 is not limited to the rectangular tube shape as in the embodiment but may be a cylindrical shape, for example.

The present invention is configured as described above. When the flange 2 is welded to the end of the column 1 in a floating manner, first, the flange welding pad body 3 is attached to the end of the column 1. Temporarily fix along the inner surface of the end of the column 1.

In this case, as shown in FIGS. 1 and 3, one end side in the width direction of the pad main body 3 is inserted along the inner surface of the end portion of the column 1 to insert the respective parts provided in the pad main body 3. The placement protrusion 31 is brought into contact with the end of the column 1. As a result, the pad main body 3 can be easily, quickly and accurately positioned at the position where the other end in the width direction thereof projects outward from the end surface of the column 1 by a certain dimension.

Then, while maintaining such a state, each of the positioning protrusions 31 and the end surface of the column 1 are spot-welded to temporarily fix the stopper plate main body 3 to the end portion of the column 1.

At the time of this temporary fixing welding, it is possible to hold the pad metal body 3 on the end side of the column 1 by utilizing the catching of the positioning projection 31 on the column end portion, and accordingly, the column end of the gold body 3 can be held. It is possible to prevent movement and drop with respect to the parts, and by spot welding the positioning projection 31 portion, it is possible to perform temporary fixing at a fixed position, that is, at an optimum position, so that good temporary fixing can be performed. is there.

Next, the flange 2 is placed on the end portion of the column 1 in a floating manner via the pad main body 3, and the corners in the circumferential groove portion formed between the flange 2 and the end portion of the column 1 are placed. Weld the four parts respectively. Then, after this welding, the portions of the projections 31 which have been temporarily fixed are melted and removed by a gouging treatment with a gouging rod. This is to prevent erroneous detection of a welding defect due to the foreign matter because the protrusion 31 becomes a foreign substance when inspecting the welding defect of the welded portion with a magnetic detector after welding.

After that, in the circumferential groove portion formed between the flange 2 and the end portion of the column 1, four straight line portions which are not welded are respectively welded. As a result, it is possible to weld the three ends of the column 1, the pad main body 3 and the flange 2 over the entire circumference in the circumferential groove portion and firmly bond them.

[0018]

[Effect of the device]

 As described above, according to the present invention, in the metal fitting for welding the flange 2 to the end portion of the column 1 in a floating manner, the metal material main body 3 along the inner surface of the end portion of the column 1 is attached to the outer surface on the inner surface side. Since a plurality of positioning protrusions 31 that restrict the amount of protrusion with respect to the end face of the column 1 are provided in a protruding manner, when temporarily attaching the pad main body 3 to the end of the column 1, the end of the column 1 is By simply inserting the pad main body 3 along the inner surface and bringing the positioning protrusions 31 into contact with the ends of the column 1, the pad main body 3 can be easily and quickly positioned on the end of the column 1. In addition, it is possible to perform the work accurately, which allows the work for temporarily fixing the metal cover body 3 to the column 1 to be performed quickly and easily.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a state in which a flange welding pad according to the present invention is temporarily fixed to an end portion of a column.

FIG. 2 is a perspective view of the pad.

FIG. 3 is a cross-sectional view of the pad.

FIG. 4 is a partially enlarged vertical sectional view showing a state in which a flange is welded to the end of the column in a floating manner.

FIG. 5 is a side view showing a state in which a flange is welded to the end of the column in a floating manner.

[Explanation of symbols]

 1 Column 2 Flange 3 Fitting body 31 Positioning protrusion

Claims (1)

[Scope of utility model registration request] 1. A metal fitting for floatingly welding a flange 2 to an end portion of a column 1, wherein the inner surface of the metal fitting body 3 along the inner surface of the end portion of the column 1 is attached to the outer surface on the inner surface contacting side. A flange welding metal plate for a column, wherein a plurality of positioning protrusions 31 for restricting the amount of protrusion with respect to the end face of the column 1 are provided.