JPH05302359A - Joining structure for beam - Google Patents

Abstract

PURPOSE:To simplify an assembly work, to perform high reliable joining, and to improve conveyance efficiency by eliminating a weld work at a site. CONSTITUTION:In beam joining structure wherein a beam 20 is joined with a square steel pipe column 10, the beam joining structure comprises a square cylinder body 31 for joining with which the whole peripheral surface of a joint between the square steel pipe column 10 and the beam 20, a plurality of nuts 40 fixed from the inner surface side of a hole 10A, of the square steel pipe column 10, of holes 31A and 10A formed in a manner to extend through the column and the beam, and an end plate 50 in which holes 50A corresponding to the respective nuts 40 are formed and which is fixed to the end part of the beam 20. A cylinder body 31 for joining and an end plate 50 are joined together in a way that a bolt 60 is joined in a screwed-in state with the nut 40 through the holes 31A, 10A, and 50A in a state that the end plate is brought into contact with the cylinder body for joining.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a beam joining structure for joining a beam member made of H-section steel or the like to a square steel tube column.

[0002]

2. Description of the Related Art A conventional beam joining structure of this type is shown in FIG.
As shown in FIG. 7, the rectangular steel pipe columns 1 and 1 on the upper floor and the lower floor,
A panel zone 2 welded to each of the square steel tube columns 1 and 1 and a bracket 3 made of H-shaped steel welded to the side surface of the panel zone 2 via bolts 4, nuts 5 and reinforcing plates 6 And a beam 7 made of H-shaped steel connected to each other. And the above panel zone 2
Is a joining cylinder body 21 made of a square steel pipe similar to the square steel pipe column 1, and backing plates 22, 22 welded to the inner surfaces of both end portions thereof.
And a box shape having through diaphragms 23, 23 welded so as to close the openings at both ends of the backing metal 22, 22 welded to each other, and each is provided at intervals according to the floor height of the steel structure. Welded between the square steel pipe columns 1 and 1 in the factory. In addition, 11 is a backing metal welded to the end of the rectangular steel pipe column 1.

Therefore, in the case of the conventional beam joint structure,
Cutting of square steel pipe column 1 to a specified size, panel zone 2
Are manufactured and the beam 7 is cut and processed in a factory in advance, and these are brought to the site and assembled. That is, in the factory, the joining cylinder 21 and the through diaphragm 2 are
3 and 23 are welded to produce the panel zone 2, and
Similar to the beam 7, a bracket 3 made by cutting an H-shaped steel into a short length is processed with a predetermined bolt hole 3A, and these are welded together to be integrated so that a transportable length (for example, a length of two floors). ) The square steel tubular column 1 was manufactured. Further, in parallel with these operations, the beam 7 is cut and the bolt hole 3A is processed. After that, the square steel pipe pillar 1 and the beam 7 in which the panel zone 2 and the bracket 3 are integrated are carried into the site, and then these are connected by the bolt 4, the nut 5 and the reinforcing plate 6 to connect the beam 7 to the square steel pipe. It was joined to pillar 1. Further, the rectangular steel pipe pillar 1 is lifted according to the height of the steel structure and the rectangular steel pipe pillar 1 on the upper floor is welded to be assembled on a predetermined floor.

[0004]

However, in the conventional beam joint structure, the backing members 11 and 22 are welded to the rectangular steel tube column 1 and the panel zone 2, and the bracket 3 for welding the bracket 3 to the panel zone 2 is used. To scallop 3
There is a problem that a lot of pre-operations such as the processing of B and the groove processing associated with each welding are required, and further the management of the welding operation and its inspection are required, resulting in a high cost. Further, since the square steel pipe pillar 1 to which the bracket 3 is attached is transported by a truck or the like, the bracket 3 becomes an obstacle and becomes bulky, the number of transport points per time is reduced, and the transport efficiency is reduced. There was a problem such as damage to No. 3. Further, there is a problem that the number of parts such as the bracket 3, the joining bolt 4, the reinforcing plate 6 and the like necessary for joining is large, and the number of welding operations and the like on site is increased accordingly.

In addition, at the site, at a high place, a square steel pipe column 1,
Since 1 is directly welded, a careful welding work is required to obtain a predetermined welding strength, and this welding work is easily affected by weather, particularly humidity, so that it is not always possible to obtain a reliable product. There were also challenges.

Therefore, it is an object of the present invention to provide a beam joint structure which can eliminate the welding work on site, simplify the assembling work, and perform reliable joining, and which is excellent in the transportation efficiency. It is in.

[0007]

DISCLOSURE OF THE INVENTION The present invention relates to a beam joining structure for joining a beam to a rectangular steel tubular column, and a joining tubular body for covering the entire circumferential surface of the joining portion of the rectangular steel tubular column with the beam, Of the holes formed so as to pass through both of them, a plurality of female screw members fixed from the inner surface side of the holes of the rectangular steel pipe column and holes corresponding to the female screw members are formed, and the end of the beam member is formed. An end plate fixed to the portion, and in a state in which the end plate is in contact with the joining cylinder, a male screw member is screwed into the female screw member through the holes to fix them. The above object is achieved by providing a beam joint structure characterized by the following.

[0008]

According to the present invention, after the rectangular steel tube column is erected at a predetermined position, the rectangular steel tube column is erected, the beams are lifted up, and the end plates of the rectangular steel tube columns are abutted against the joining cylinders. The rectangular steel tube column and the beam can be joined simply by screwing the male screw member into the female screw member of the rectangular steel tube column through the hole and fixing them together.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on the embodiments shown in FIGS. In each of the drawings, FIG. 1 is a front view showing an embodiment of the beam joint structure of the present invention, FIG. 2 is a longitudinal sectional view of the beam joint structure shown in FIG. 1, and FIG. 3 is shown in FIG. FIG. 4 is a cross-sectional view in the lateral direction of the beam joint structure, FIG. 4 is an exploded perspective view of the beam joint structure shown in FIG. 1, and FIG. 5 is a diagram showing a female screw member used in the beam joint structure shown in FIG. (a) is the perspective view, (b)
Is a partial cross-sectional view showing a half thereof, (c) is a side view from the left, and (d) is a side view from the right.

In the beam joint structure of this embodiment, as shown in FIG. 1, a beam 20 made of H-shaped steel is joined to a square steel tube column 10 through a panel zone 30. Then, as shown in FIGS. 2 and 3, this beam joint structure has the above-mentioned rectangular steel pipe column 1
No. 0 of the rectangular tubular joint column 31 covering the entire peripheral surface of the joint with the beam 20 and constituting the panel zone 30, and holes 31A, 10A penetrating both of the rectangular steel tubular column 10 A plurality of female screw members (nuts) 40 screwed and fixed to the inner surface, and an end plate 50 having holes 50A corresponding to the nuts 40 and fixed to the end of the beam 20 are provided. The end plate 50 is brought into contact with the joining cylinder 31 and a male screw member (bolt) 60 is screwed into the nut 40 via the washer 61 via the holes 31A, 10A and 50A, respectively.
It is configured by fixing 0 and 31.

The panel zone 30 connects the square steel pipe columns 10 cut according to the floor height of the steel frame structure, and is mainly composed of the joining cylinder 31. The joining cylinder 31 has an inner surface dimension slightly larger than that of the outer surface of the rectangular steel pipe column 10 and has a size that allows the rectangular steel pipe column 10 to be inserted therein with almost no gap formed therein. As shown in FIGS. 1 to 4, a rectangular steel pipe column 10
Is covered. Further, the hole 10A of the prismatic steel pipe pillar 10
Are formed as female screw holes 10A into which the nuts 40 are screwed, and a total of four are provided on the left and right of the positions sandwiching the upper and lower flanges 20A and 20A of the beam 20, respectively. Then, the bolt hole 31A of the joining cylinder 31 is
Corresponding to the screw holes 10A of the rectangular steel pipe column 10, the same number is formed.

The rectangular steel tube column 10 has two female screw holes 10B, 10B on the left and right sides above and below the panel zone 30, respectively.
B is formed respectively, and the respective female screw holes 10B and 10B are used for positioning when connecting the upper and lower rectangular steel tube columns 10 and 10 in the panel zone 30. That is, at the time of assembling the steel frame structure, the rectangular steel tube column 1 on the lower floor already erected.
0, a positioning member 70 having bolt holes 70A, 70A corresponding to the female screw holes 10B, 10B is attached to a bolt 80.
After that, the panel zone 30 is fitted into the panel zone 3 and then the square steel pipe column 10 on the upper floor is attached to the panel zone 3.
By inserting the positioning member 70 with the bolt 80 and inserting the positioning member 70 into 0, the square steel pipe columns 10 of each floor can be connected.

The end plate 50 attached to the end of the beam 20 is sized to cover the side surface of the panel zone 30.
The bolt holes 50A corresponding to the bolt holes 31A of the joining cylinder 31 are formed as described above.

Next, one mode of joining the rectangular steel pipe column 10 and the beam 20 by the above beam joining structure will be described.

First, the square steel pipe columns 10 and the beams 20 are preliminarily set in the factory.
The panel zone 30 is machined, and the end plate 50 is also welded to the end of the beam 20 at the factory. Next, after the square steel pipe columns 10, the beams 20, the panel zones 30, and other parts such as bolts are brought into the site, the square steel pipe columns 10 for the first floor are erected at predetermined positions. After that, the female screw holes 10B,
In 10B, the positioning member 70 is attached by the bolt 80. After that, the joining cylinder 31 is fitted into the prismatic steel pipe column 10, and subsequently, the square steel pipe column 10 on the upper floor is lifted and aligned with the joining cylinder body 31, and the prismatic steel pipe column 10 is fitted therein. The upper positioning member 70 is attached to the rectangular steel tube column 10 on the upper floor as described above to complete the connection of the rectangular steel tube column 10.

Next, after the beam 20 is lifted up and its end plate 50 is aligned with the corresponding panel zone 30, bolts 60 are inserted through the washers 61 from the respective bolt holes 50A of the end plate 50, and the square steel pipe column 10 is inserted.
The beams 2 are screwed into the nuts 40 fixed to the inner surface of the beam 2 respectively.
The joining of 0 and the square steel pipe column 10 is completed. After that, the same work is repeated for each floor, and the square steel tube column 1 of the steel frame structure is used.
0 and the beam 20 are assembled.

Therefore, according to this embodiment, since the square steel pipe columns 10 on each floor can be connected only by the bolts 80 through the panel zone 30, the square steel pipe columns 10 are not transported in a long state, It can be transported as a short rectangular steel tube column 10 for each floor, and the beam 20 is also a rectangular steel tube column 1.
It can be joined to the zero panel zone 30 using only bolts 60. Therefore, unlike conventional methods, there is no welding work at the site, the management and inspection associated with this work are unnecessary, and it is possible to perform extremely easy and quick assembly work without requiring skill on site work. it can. Further, since the parts such as the rectangular steel tube column 10, the beam 20 and the panel zone 30 can be transferred without being bulky, the parts can be efficiently transferred to the site with a small number of times of transfer.

It should be noted that the present invention is not limited to the above-described embodiments, and is included in the present invention without departing from the gist of the present invention. In the above embodiments, for example, the case where the female screw member is screwed into the hole 10A of the rectangular steel pipe column 10 has been described. Alternatively, the female screw member may be fixed to this hole.

[0019]

According to the beam joint structure of the present invention, it is possible to eliminate the welding work on site, simplify the assembling work, perform highly reliable joints, and have excellent transport efficiency.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a beam joint structure of the present invention.

FIG. 2 is a vertical cross-sectional view of the beam joint structure shown in FIG.

3 is a lateral cross-sectional view of the beam joint structure shown in FIG.

FIG. 4 is an exploded perspective view of the beam joint structure shown in FIG.

5A and 5B are views showing a female screw member used in the beam joint structure shown in FIG. 1, in which FIG. 5A is a perspective view thereof, FIG. 5B is a partial sectional view showing a half thereof, and FIG. The side view from the left direction, (d) is the side view from the right direction.

FIG. 6 is a vertical cross-sectional view showing a conventional beam joint structure.

FIG. 7 is an exploded perspective view of an example of a conventional beam joint structure.

[Explanation of symbols]

 10 Rectangular Steel Pipe Column 10A Female Threaded Hole 20 Beam 30 Panel Zone 31 Joining Cylinder 31A Bolt Hole 40 Nut (Female Thread Member) 50 End Plate 50A Bolt Hole 60 Bolt (Male Thread Member)

Claims (1)

[Claims] 1. In a beam joining structure for joining a beam member to a rectangular steel tubular column, a tubular body for joining is provided so as to cover the entire circumferential surface of the joining portion of the rectangular steel tubular column with the beam, and is formed so as to penetrate both of them. Of the formed holes, a plurality of female screw members fixed from the inner surface side of the holes of the rectangular steel pipe column, and an end plate fixed to the end of the beam member in which holes corresponding to the female screw members are formed And a male screw member is screwed into the female screw member through the holes in a state where the end plate is in contact with the joining cylinder, and the both are fixed. Joint structure.