JP2662757B2 - Positioning connection method of beam steel frame - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a beam steel frame positioning connection method for joining a beam steel frame to a column steel frame in a steel structure.

[0002]

2. Description of the Related Art In order to bridge a beam steel frame horizontally between column steel frames,
Conventionally, a short H-shaped beam bracket formed by connecting the upper and lower flanges by a web from the left and right column steel frames to a predetermined mounting height of a steel beam is projected, and the ends are abutted between the beam brackets. In this manner, the beam is also laid over the H-shaped steel beam.

FIG. 5 shows a state of abutment between the ends. In FIG. 5, reference numeral 2 denotes a beam bracket on the column side. Agree with. In addition, the beam steel frame 1 has a flange positioned vertically. Then, bolting or welding is performed on the splice plate 3 to be bridged therebetween.

In the case of fixing with the splice plate 3, a bolt insertion hole is provided in the splice plate 3, the beam steel frame 1 and the flange of the beam bracket 2, and a high-strength bolt is inserted through the bolt insertion hole. 4 bolts
Secure with nuts. In the figure, reference numeral 5 denotes a gusset plate for connecting the webs.

[0005] The beam bracket 2 thus attached to the column
In order to join the beam steel frame 1 to this, the beam steel frame 1 is hung by a crane etc.
The positioning is performed by using the bolt insertion holes of the high-strength bolts 4 and manually aligning the holes to insert the temporary bolts.

[0006]

In the above-described positioning in which the temporary bolts are inserted by manually aligning the holes using the bolt insertion holes, the worker always intervenes at the joint at the time of suspending the beam steel. At least one signaling man for the crane operator and one
This requires a total of three workers, and this work is a high-altitude work and is dangerous.

An object of the present invention is to overcome the disadvantages of the prior art and to achieve a beam which can be easily performed by a small number of workers, thereby improving safety and having high joint strength and accuracy. An object of the present invention is to provide a positioning connection method for steel frames.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is directed to a case in which a beam steel frame is horizontally hung between column steel frames. An H-shaped short beam bracket, which is formed by connecting the webs with a web, protrudes, and the end of the beam bracket is joined to the end of a beam steel frame made of H-shaped steel with a flange positioned up and down. In the positioning and joining method for steel frames, the ends of the beam brackets are cut out at the upper flange and the upper part of the web, the ends of the beam steel are cut out at the lower flanges and the lower part of the web in accordance therewith, and the beam brackets are cut at the upper flange. And an inverted L-shaped connecting metal member formed by bending an outward horizontal plate at the upper end so as to sandwich the lower portion of the remaining web having the upper portion of the web notched, and attached to face each other, and an insertion formed between these connecting metal members. Under the steel beam in the groove Insert the upper part of the remaining web with the lower part of the runge and web cut off, and connect the beam steel frame to the beam bracket by overlapping the upper flange on the outward horizontal plate, or In addition, the inverted L-shaped connection hardware has a feature that the bent corner portion of the outward horizontal plate is formed as an inclined surface.

[0009]

According to the first aspect of the present invention, the connecting bracket is attached to the end of the beam bracket first, and automatically inserted only by inserting the web of the beam steel into the insertion groove formed by the connecting bracket. The mutual alignment of steel frames can be performed.

According to the second aspect of the present invention, in addition to the above-described operation, when inserting the web of the beam steel into the insertion groove, the enlarged diameter entrance is formed at the upper end by the inclined surface. This serves as a guide, which facilitates insertion.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a side view showing an embodiment of a beam steel frame positioning connection method according to the present invention, and FIG. 2 is a side view showing the same after connection.

In the drawing, reference numeral 1 denotes a beam steel frame made of H-shaped steel, and 2 denotes a beam bracket on the column 6 side also made of H-shaped steel. In the present invention, similarly to the conventional example, the beam steel frame 1 is horizontally hung between the columns 1 and 1, and a web is provided between the upper and lower flanges from the left and right columns 1 and 1 to a predetermined mounting height of the steel beam 1. The H-shaped short beam brackets 2 and 2 that are combined are protruded. Then, the ends of the beam steel frame 1 are joined to the ends of the beam brackets 2 and 2 by abutment. In addition, the beam steel frame 1 has the flanges positioned up and down as the same as the beam bracket 2.

The end of the beam bracket 2 is an upper flange 2
a and the upper part of the web 2c are cut off, while the end of the beam steel frame 1 is cut out at the lower flange 1b and the lower part of the web 1c in accordance with the end of the beam bracket 2.

At the end of the beam bracket 2,
The metal fittings 7 are attached so as to face each other so as to sandwich the lower part of the web 2c in which the upper flange and the upper part of the web are cut off. The connecting metal member 7 is an inverted L-shaped metal member formed by bending an outward horizontal plate 7b at the upper end of a vertical plate 7a. The vertical metal plate 7a is formed by cutting the upper flange and the remaining web 2c in which the upper portion of the web is cut off. It is superposed on the outer surface and fastened with high strength bolts 4. In this case, the outward horizontal plate 7b is brought into contact with the upper flange 2a, and these are also fastened with the high-strength bolts 4.

In this manner, an insertion groove 8 is formed between the metal fittings 7 at a portion where the upper flange of the beam bracket 2 and the upper portion of the web are cut off.

In addition, in the inverted L-shaped connection metal member 7, if the bent corner at the upper end of the vertical plate 7 a forming the outward horizontal plate 7 b is set as the inclined surface 9, the inclined surface 9 is formed as described above. It constitutes an enlarged diameter entrance of the insertion groove 8.

Then, in order to join the beam steel 1 to the beam bracket 2 to which the connecting hardware 7 is attached, the lower flange 1b of one end of the beam steel 1 and the remaining web 1c in which the lower portion of the web 1c is cut off are used. Insert the upper part into the insertion groove 8, and
The upper flange 1a of the beam steel frame 1 is superimposed on the outward horizontal plate 7b, and the vertical plate 7a of the metal fittings 7 and the upper part of the web 1c, and the horizontal plate 7b and the upper flange 1a are connected to the high-strength bolt 4 To conclude.

When the web 1c is inserted into the insertion groove 8, the enlarged diameter entrance is formed at the upper end by the inclined surface 9, so that it becomes a guide and is easily inserted.
Further, the beam steel frame 1 is supported by the connecting hardware 7 before being fastened by the high-strength bolt 4, so that the bolting operation can be performed in a stable state.

Finally, the lower flange 2 of the beam bracket 2
gusset plate 5
Bolted through.

[0020]

As described above, the beam steel frame positioning connection method of the present invention can perform temporary joining easily with one touch with a small number of workers, thereby improving the safety and the joint strength. In addition, a device with high accuracy can be obtained.

[Brief description of the drawings]

FIG. 1 is a side view showing one embodiment of a beam steel frame positioning connection method according to the present invention.

FIG. 2 is a side view after connection showing an embodiment of the beam steel frame positioning connection method according to the present invention.

FIG. 3 is a perspective view of a beam bracket side showing an embodiment of the beam steel frame positioning connection method of the present invention.

FIG. 4 is a vertical sectional front view showing one embodiment of the beam steel frame positioning connection method of the present invention.

FIG. 5 is a side view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Beam steel 1a ... Upper flange 1b ... Lower flange 1c ... Web 2 ... Bracket for beams 2a ... Upper flange 2b ... Lower flange 2c ... Web 3 ... Splice plate 4 ... High-strength bolt 5 ... Gusset plate 6 ... Column 7 ... Connection Hardware 7a: Vertical plate 7b: Horizontal plate 8: Insertion groove 9: Inclined surface

Claims (2)

(57) [Claims] 1. An H-shaped short beam in which a beam steel frame is horizontally suspended between column steel frames, and the upper and lower flanges are connected by webs from the left and right column steel frames to a predetermined mounting height of the steel beam. In the beam steel frame positioning and joining method in which an end of a beam steel frame made of H-shaped steel in which a flange is vertically positioned at the end of the beam bracket is joined and joined, the end of the beam bracket is Cut out the upper flange and the top of the web,
The end of the beam steel beam is cut off at the lower flange and the lower part of the web in accordance with this. The inverted L-shaped connecting metal parts formed by bending are attached to face each other, and the lower flange of the beam steel frame and the upper part of the remaining web which is cut off the lower part of the web are inserted into the insertion grooves formed between these connecting metal parts, A beam steel frame positioning connection method, wherein an upper flange is overlapped on the outward horizontal plate to connect a beam steel frame to a beam bracket. 2. The method according to claim 1, wherein the bent portion of the inverted L-shaped connecting metal has an inclined surface formed with an outward horizontal plate.