JP2555521Y2 - Joint structure of steel column and steel beam - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a joint structure between a steel column and a steel beam in which a web end of a steel beam is bolted to a gusset plate protruding from a beam connecting side surface of the steel column.

[0002]

2. Description of the Related Art As a means for connecting a steel column and a steel beam, a structure shown in FIG. In this joint structure,
A gusset plate 3 and a connection plate 2 are projected from the beam joint side surface of the steel column 1, and the gusset plate 2 and the end of the web 5 of the steel beam 4 are tightly connected by a high tension bolt 6.

Further, the upper flange 7 of the steel beam 4 is welded to the side surface of the steel column 1, and the lower flange 8 is welded to the connection plate 2 by providing a backing metal 9 also serving as a load receiver. The joint between the steel column and the steel beam is made tight by the attachment.

[0004]

In such a joint structure, since the lower flange of the steel beam is cut off at the end, even if the gusset plate protrudes from the side surface of the steel column, the steel beam is viewed from above. Can be hung at the beam joint position of the steel column, and the work of positioning the beam end can be easier than before.

[0005] However, the easiness is not automatically performed, but is based on the fact that the position is reconfirmed artificially. Is required.

[0006] This invention is considered from the above circumstances, and its purpose is to suspend a steel beam from above only between steel columns, and to perform positioning without repeating confirmation of artificial position. It is an object of the present invention to provide a joint structure between a steel column and a steel beam having a new configuration.

[0007]

A feature of the present invention for the above-mentioned object is that a connecting plate is projected together with a gusset plate on a beam joint side surface of a steel column, and the lower end flange of the steel beam is cut off on the gusset plate. In the joint structure of the steel column and the steel beam where the ends of the upper and lower flanges of the steel beam are welded to the steel column side while the bolts are attached, the guide for the steel beam is set up on the connection plate and the gusset plate A load receiving plate made of a steel beam is provided to protrude from the side of the column above the intake guide.

[0008]

[Operation] In the above configuration, since the end of the lower flange of the steel beam is missing, the web end of the suspended steel beam is positioned between the gusset plate and the intake guide on the side. As it is lowered, the end of the web is guided to the side surface of the gusset plate by the intake guide.

Since the vertical position is determined when the upper flange is received by the load receiving plate, if the steel beam is displaced by the necessary dimension as it is, the horizontal position is also determined. Therefore, since the positioning operation is performed only in the horizontal direction, the operation can be performed mechanically.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the embodiments shown in FIGS.

In the figure, reference numeral 11 denotes a steel column.
And protruding.

The gusset plate 12 includes the steel beam 1
4, an insertion hole 20 for a bolt 16 provided at an end of a web 15.
And the same number of bolt holes 21 in the same position.

The connection plate 13 is connected to a steel beam 14
The lower flange 18 has a cross-sectional shape corresponding to the lower flange 18, and is provided slightly protruding from the gusset plate 12.

The lower flange 18 of the steel beam 14 is shorter than the upper flange 17 and is cut off at the end of the web, and the cut-off portion is provided with a backing metal 19 serving also as a load receiver and welded to the connection plate. 13.

The reference numeral 22 stands on the connection plate 13 and
An intake guide formed by a plate opposed to a side portion of the gusset plate 12, and a gap 2 substantially equal to the thickness of the web
3 at right angles to the gusset plate 13,
The opposite edge is formed as an inclined edge except for the lower end.

A load receiving plate 24 of the steel beam 14 is welded to a column side of the take-up guide 22 so as to project therefrom. The load receiving plate 24 also serves to position the steel beam 14 in the vertical direction, and is provided at a height position where the lower flange 18 is supported at the same level as the connection plate 13 by contact with the lower surface of the upper flange 17.

FIG. 3 shows the suspended state of the steel beam 14, in which the web end of the steel beam 14 is positioned between the gusset plate 12 and the take-up guide 22 on the side thereof from below and lowered. And the end of the web is
Is automatically guided to the side surface of the gusset plate 12.

The suspension is continued until the lower surface of the upper flange 17 contacts the upper end of the load receiving plate 24, and finally the web ends are overlapped with the gusset plate 12 being drawn toward the side surface.

Further, since the vertical position is determined when the upper flange 17 is received by the load receiving plate 24, the lateral displacement is corrected by slightly moving the steel beam 14 laterally thereafter. Gusset plate 1
The positions of the bolt insertion holes 21 and the bolt holes 20 at the end of the web coincide with each other.

Tightening by the bolts 16 after positioning can be performed by supporting the steel beam 14 by the load receiving plate 24. After the tightening, welding of the column side surface to the upper flange 17 and welding of the connection plate 13 to the lower flange 18 are performed. I can do it.

[0020]

As described above, the guide 22 for the steel beam 14 is erected on the connection plate 13 projecting from the beam joint side surface of the steel column 11 together with the gusset plate 12 as described above. The load receiving plate 24 of the steel beam 14 protrudes from the side of the column above the intake guide 22, and the positioning of the steel beam 14 with respect to the gusset plate 12 can be automatically performed by both. It is not necessary to perform positioning while correcting the position as in the past.

Further, since the vertical position is determined by suspending the steel beam, the positioning can be easily performed even when the construction of the steel frame is automated, and the structure is extremely simple, so that the cost is not increased. .

[Brief description of the drawings]

1 to 3 show an embodiment of a joint structure between a steel column and a steel beam according to the present invention.

FIG. 1 is a longitudinal sectional view of a joint between a steel column and a steel beam.

FIG. 2 is a side view of the same.

FIG. 3 is a longitudinal sectional view showing a suspended state of a steel beam.

FIG. 4 is a side view showing a joint structure of a steel column and a steel beam devised in advance.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Steel column 12 Gusset plate 13 Connection plate 14 Steel beam 15 Web 16 Bolt 17 Upper flange 18 Lower flange 19 Backing metal 20 Bolt hole 21 Bolt hole 22 Capture guide 23 Gap 24 Load receiving plate

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Toshiro Uno 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Construction Co., Ltd. (72) Michio Hagiri 1-3-2 Shimiura Shibaura, Minato-ku, Tokyo Construction Co., Ltd. (72) creator Yoji Moroi Shimizu Corporation, 2-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation (72) creator Masaaki Nakanishi, 2-3 2-3 Shibaura, Minato-ku, Tokyo (72) Inventor Kazunori Koshida Shimizu Corporation, 2-3 2-3 Shibaura, Minato-ku, Tokyo

Claims (1)

(57) [Scope of request for utility model registration] A gusset plate and a connection plate project from a side surface of a steel column to be joined to a beam, and a web end having a lower flange of the steel beam cut off is bolted to the gusset plate, and upper and lower flanges of the steel beam are connected. In the joint structure of a steel column and a steel beam whose ends are welded to the steel column side, the capture guide for the steel beam is erected on the connection plate, opposed to the side of the gusset plate, and the upper column of the capture guide is provided. A joint structure between a steel column and a steel beam, wherein a load receiving plate of a steel beam is protrudingly provided on a side surface.