JPH056327Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Industrial application field] This invention is useful when two or more steel pipe columns are butt welded vertically to form a single column at a steel structure construction site. The present invention relates to means for connecting the upper end of a steel pipe column and the lower end of a steel pipe column to be connected thereon in a state suitable for butt welding.

[Conventional technology]

As shown in FIG. 3, the conventional connection means includes a plurality of pairs of bolt hole-equipped substrates 30 welded near the connection of 10 pairs of steel pipe columns to be connected, and substrates 30 at both ends.
It consists of a plurality of pairs of connecting bridge plates 32 having bolt holes corresponding to the bolt holes of , and a plurality of bolts 34 and nuts 36 that fasten each end of each pair of connecting bridge plates 32 to the side surface of each board 30. A plurality of pairs of substrates 30 are welded in advance at a factory or the like near the connection end of each steel pipe column 10 at equal intervals around the axis and parallel to the column axis, and when forming the column at the construction site, the upper and lower Connect each of the 30 pairs of substrates of the opposing steel pipe columns 10 with bolts 34 and nuts 3 on both sides of each substrate 30.
It is used in such a way that it is connected through 32 pairs of connecting bridge plates that are connected through 6.

In addition, after the upper and lower ends of the upper and lower steel pipe columns 10 are butt-welded, the connecting bridge plate 3
The pair of base plates 30 are often removed from the steel pipe columns 10 by releasing the two pairs of bolts 34 and cutting off the welded portions of the base plates 30 to the steel pipe columns 10 by gas cutting or the like.

[The problem that the idea aims to solve]

As mentioned above, when connecting upper and lower steel pipe columns, conventional connection means hold bolts and nuts on each board together with a pair of connecting bridge plates, which are not necessarily light, at a high place on the construction site. There is a problem in that the work is cumbersome because it needs to be concluded.

In view of the above points, the main objective of this invention is to simplify the work of connecting steel pipe columns by omitting the connecting bridge plate.

[Means to solve the problem]

According to this invention, the above problem is solved by providing a pair of side plates (flanges) having both ends (end faces) facing in directions perpendicular to each other, and a belly plate (web) with bolt holes connecting one end of both side plates, Via the other ends of the side plates, connect the connecting ends of the steel pipe columns at intervals around the axis so that the outer surface of the belly plate belongs to substantially the same plane as the connecting end surfaces of the steel pipe columns to be connected. The problem is solved by a means for connecting steel pipe columns, which consists of a plurality of pairs of connecting fittings to be welded, and a plurality of bolts and nuts that can be fastened with the bottom plates of each pair of connecting fittings facing each other.

Here, the expression that the outer surface of the belly plate belongs to substantially the same surface as the connection end surface of the steel pipe columns to be connected does not only mean that both surfaces belong to the completely same surface, but also that the surfaces to which both surfaces belong are relatively slightly This also includes cases where the amount is off.

[Effect]

The connecting means of this invention is such that each pair of connecting fittings is welded to the connecting end of each steel pipe column in advance at a factory, etc., and when forming the column at the construction site, the belly plate of each pair of connecting fittings facing each other is The upper and lower steel pipe columns can be connected through bolts and nuts, either in contact or in a separated state with or without a spacer (liner) with or without bolt holes as necessary. Connect the items so that they can be butt-welded.

Generally, after the connecting ends of the steel pipe columns are butt welded, this connecting means is removed from the steel pipe columns by gas cutting or the like at the welded portion of each belly plate to the steel pipe columns.

〔Example〕

The connecting means of this invention is, for example, as shown in the figure.
A bolt hole 18 is provided in the center between one end of 14 pairs of half-trapezoidal side plates with a right-angled bottom corner cut out in a semi-arch shape.
It can be configured with a connecting fitting 12 from which a belly plate 16 having a shape extends, and a bolt 20 and a nut 22 that are fastened and engaged with bolt holes 18 of the belly plate 16 of the connecting fitting 12. 10, when connecting the steel pipe columns 10 to each other, as shown in the figure, a connecting fitting 12 is welded to the center of each side of the connecting end of each steel pipe column 10 in advance at a factory, etc., and when forming the column at the construction site, Bolts 20 connect the bottom plates 16 of the connecting fittings 12 of both vertically opposing steel pipe columns 10.
and are fastened via the nut 22.

The connecting means of this invention can be made in various ways, such as forming the connecting fitting with half-gate-shaped side plates, and making the bolt holes in the belly plate of the connecting fitting into elongated holes (horizontal holes) extending in the connecting direction of both side plates. This connecting means can be used not only in a state in which the belly plates of a pair of connecting fittings are brought into contact with each other as shown in the figure, but also in a state in which a spacer with or without bolt holes is interposed between them. It can also be carried out in a spaced state with a spacer or a spaced state without such a spacer.

[Effect of idea]

According to the connecting means of this invention, the work of connecting the upper and lower steel pipe columns at a high place on a construction site can be performed using substantially only lightweight bolts and nuts, so it is extremely simple.

Further, when using this connecting means, if a spacer is interposed between the belly plates of the pair of connecting fittings, the abutment state of the connecting ends of both steel pipe columns can be adjusted as desired. Therefore, even if the welding position of the connecting fitting to the steel pipe columns deviates in the axial direction of the steel pipe columns, it can be adjusted using the spacer when the steel pipe columns are connected at the construction site.

Furthermore, as mentioned in the embodiment, if the bolt hole in the belly plate of the connecting fitting is made into an elongated hole extending in the connecting direction of both side plates, the insertion range of the bolt in this direction will be expanded. Even if the welding position on the steel pipe columns shifts in the direction around the axis of the steel pipe columns, and the opposing pair of connecting fittings shifts in the lateral direction, the bolts and nuts on these bottom plates can be fastened without any problem. It can be carried out.

[Brief explanation of the drawing]

FIG. 1 is a front view showing how an embodiment of the connecting means for steel pipe columns according to this invention is used, and FIG.
FIG. 3 is a cross-sectional view taken along the line B--, and FIG. 3 is a front view showing how a conventional steel pipe column connecting means is used. 10...Steel pipe columns, 12...Connection fittings, 14...
...Side plate, 16...Body plate, 18...Bolt hole, 20
...Boruto, 22...Natsuto.

Claims (1)

[Claims for Utility Model Registration] (1) A pair of side plates having both ends facing in directions orthogonal to each other, and a belly plate with a bolt hole connecting one end of both side plates, through the other end of both side plates, A plurality of pairs of connecting fittings to be welded to the connecting ends of the steel pipe columns at intervals around the axis so that the outer surface of the belly plate belongs to substantially the same plane as the connecting end surface of the steel pipe columns to be connected, and each A means for connecting steel pipe columns consisting of a plurality of bolts and nuts that can be fastened with the bottom plates of the connecting fittings facing each other. (2) The means for connecting steel pipe columns according to claim (1), wherein the bolt hole in the belly plate of the connecting fitting is an elongated hole extending in the connecting direction of both side plates.