JP2926105B2 - Steel column joint structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial applications]

The present invention relates to a steel column joint structure used as a column of a steel frame structure.

[Prior art]

2. Description of the Related Art Conventionally, as a column in a steel structure, steel members having various cross-sectional shapes have been adopted, and as one of them, there is a steel column called a box column in which a beam member is provided on a column having a square cross section. In the case of constituting a pillar portion by this steel column, the next steel column to be connected is lifted and arranged at the upper end of the previously installed and fixed steel column, and the erection pieces provided on the four sides of the connection portion. After the temporary fixation, the upper and lower steel columns are connected by welding of the connection portion.

[Problems to be solved by the invention]

However, in the connection of the above-mentioned steel columns, since the worker performs the alignment of the steel columns on the side to be lifted and installed and the alignment with the installed steel columns while pushing the steel columns, it takes two to three persons. There is a problem that a worker is required, and since the erection piece is handed down to the connecting portion and tightened and temporarily fixed, the connecting work of the steel column becomes complicated. Therefore, the present invention has an object to provide a steel column to be lifted and installed at the time of connection of the steel column so that its direction and position are regulated by the installed steel column, and to reduce the number of workers required to connect the steel column. The purpose is to reduce the connection and improve the efficiency of the connection work.

[Means for Solving the Problems]

The present invention has been made in view of the above problems,
A steel column for closing one end of a column, connecting the closed end and the open end to face each other, and a guide inserted into the open end of the column to be connected to the closed end; A plate for fine adjustment of position having a nut to be inserted into the open end of the pillar to be provided, wherein the guide includes an inclined portion for guiding the open end of the pillar to be connected to the connection position, A bolt passing through a bolt hole opened on the open end side corresponding to the position fine adjustment plate is fastened to a nut of the position fine adjustment plate, To solve the above-mentioned problem.

[Action]

In the present invention, by lifting the steel column and lowering it on the installed steel column, the guide of one steel column is inserted into the open end of the opposite steel column, and the guide is inclined when the guide is inserted. The other end of the opening end is guided while abutting on the other end, the direction and position are adjusted, and the bolt passed through the bolt hole on the open end is tightened to the nut of the plate for fine adjustment of position. By attaching, the alignment between the closed end side and the open end side can be finely adjusted.

【Example】

Next, the present invention will be described in detail based on an embodiment shown in FIGS. In the figure, reference numeral 1 denotes a steel column, and the steel column 1 is welded to one end of a hollow column 2 having a square cross section so as to cover the end, and a mounting plate 3 is welded. The four guides 4 are provided upright, and this end is provided as a closed end 5, and the other end of the column 2 is an open end. Each of the guides 4 is formed of an angled material having a rectangular cross section, and is disposed near each of the four edges of the closed end portion 5 so that the angled material opens outward. The guide 4 has a tapered tip with a tapered upper edge 4a, and each of the guides 4 has a pair of inclined portions 6 composed of the inclined upper edge 4a.
That is, the inclined portions 6 are arranged so as to be located within the open ends of the steel columns on the connection side, which will be described later.
6a is located at or very close to the edge of the open end. At the base end side of the guide 4, a plate 7 for fine adjustment of the position having a nut is provided. After the installation is performed as described later, the plate 7 When it is lifted, tightening is performed (see FIG. 3). When a plurality of steel columns 1 having the above structure are connected to form a column having a steel structure, the closed end and the open end are connected to face each other, and the steel frame set and fixed first is used. The next steel column 1 'is lifted to the closed end 5 of the column 1 and the open end 8 of the steel column 1' is arranged. For this connection,
A backing metal 9 serving as an edge of the open end 8 (steel column 1 ′) comes into contact with the inclined portion 6 of the guide 4, and the guide 4
The direction and position of the steel column 1 ′ are corrected while approaching the closed end 5, and the edge of the open end 8 is positioned at the connection position, that is, in the proper state with respect to the edge of the closed end 5. You will be guided to do so. Guide plates 10 are provided on the four inner surfaces of the steel column 1 'on the open end 8 side, and the guides 4 abut against the guide plates 10 to assist in alignment and positioning at the initial stage of insertion. At the open end 8 side of the steel column 1 ', a bolt hole 11 is opened corresponding to the plate 7, and after the closed end 5 and the open end 8 are aligned, the bolt a Fine adjustment can be performed by tightening. After the closed end and the open end match, the upper and lower steel columns are welded along the opposite edges (final joining).
1,1 'joining is completed. FIGS. 5 and 6 show a second embodiment. In the second embodiment, each of the guides 4 of the closed end 5 is made of a square pipe material and is arranged so as to correspond to a corner portion in the open end (FIG. 6). Each of the guides 4 has an inclined portion 6 whose upper edge is inclined obliquely outward from the center of the closed end. At the time of connection, similarly to the first embodiment, the open end is guided by regulating the direction and position by the guide 4 of the square pipe, so that the closed end and the open end properly correspond. Although the present invention has been described with reference to the embodiment, the present invention is of course not limited to such an embodiment, and various designs can be made without departing from the spirit of the present invention.

【The invention's effect】

As described above, according to the present invention, there is provided a steel column that closes one end of a column, connects the closed end and the open end to face each other, and connects the column to the closed end. A guide inserted into the open end of the body and a plate for fine adjustment of position having a nut inserted into the open end of the connecting column are erected, and the guide is connected to the open end of the connecting column. A bolt having an inclined portion for guiding an edge to a connection position and passing through a bolt hole opened on an open end side corresponding to the position fine adjustment plate is fastened to a nut of the position fine adjustment plate. Since the lifted steel column is lowered and the guide at the closed end is inserted into the open end, the guide adjusts the direction of the steel column on the lifting side and the alignment with the installed steel column. It is easy for one worker at the connection place Able to induce, it becomes possible to significantly reduce the personnel in connection work. In addition, since the guide is inserted inside the column, by appropriately setting the length and strength of this guide, it is possible to prevent the steel column joined by this guide from overturning, and the erection piece is unnecessary, that is, Temporary fixing work can be eliminated. Further, by tightening the bolts passed through the bolt holes on the open end side to the nuts of the position fine adjustment plate, the alignment between the open end and the closed end can be finely adjusted. This eliminates the need for conventional positioning (fine adjustment) using an erection piece, and also allows the main joint (welding) to be performed after the lifted steel columns are arranged, thereby improving the efficiency of the connection work. It has excellent practical effects.

[Brief description of the drawings]

1 to 4 show a first embodiment of a steel column according to the present invention. FIG. 1 is an explanatory view showing a guide from a side,
FIG. 2 is an explanatory view showing the guide from the top, FIG. 3 is an explanatory view showing the joined state from the side, FIG. 4 is an explanatory view showing the open end side, FIG. 5 and FIG. FIG. 5 is an explanatory view showing a guide from the side, and FIG. 6 is an explanatory view showing the guide from above. 1 ... steel column 4 ... guide 4a ... upper edge 4b ... side edge 5 ... closed end 6 ... inclined section 8 ... open end

Claims (1)

(57) [Claims] 1. A steel column for closing one end of a column and connecting the closed end and the open end so as to face each other, wherein the steel column is inserted into the open end of the column to be connected to the closed end. And a plate for position fine adjustment having a nut inserted into the open end of the column to be connected, and the guide guides the open edge of the column to be connected to the connection position. It is provided with an inclined portion, and a bolt passing through a bolt hole opened to the open end side in accordance with the position fine adjustment plate is fastened to a nut of the position fine adjustment plate. Steel column joint structure.