JP3134125B2 - Column / beam joining equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for joining columns made of square steel pipes and beams made of H-shaped steel.

[0002]

2. Description of the Related Art Conventionally, in order to join a square steel pipe and a column made of H-shaped steel, a bracket having the same cross section as a beam is previously projected on the outer surface of the column, and this bracket and the beam are connected to each bracket. Bolts are connected via a joining plate astride between flanges of beams and a joint plate astride between both webs.

[0003]

However, in the conventional structure as described above, the bracket and the beam must be joined by at least three joining plates, which increases the number of parts and increases the number of parts. The bolts must be tightened at both ends of the plate, so that the number of bolts increases and the number of steps of bolt tightening also increases.
Brackets and beams must be bolted while the beams suspended by a crane or the like are suspended at the height of the brackets. Therefore, there is a problem that the work is difficult. Further, although the bracket is welded to the outer surface of the column, if the column is not made sufficiently thick, the column may buckle or deform due to the load transmitted to the column through the bracket. There is fear. The present invention has been made for the purpose of solving these conventional disadvantages.

[0004]

In order to solve the above-mentioned problems, according to the present invention, a thick joining cylinder is welded to an end of a pillar and integrally fixed thereto, and a screw hole of the joining cylinder is formed. Bolts that screw into the upper end of the beam end made of H- section steel
A manner secured an end plate which is provided, likewise horizontal plate which is projected from the pillar main body at the lower than the junction accommodating cylinder, it is characterized in that fixed by bolts by placing the bottom flange of the beam.

Further, in the above, it is conceivable to attach a diaphragm in the column main body corresponding to the horizontal plate to reinforce the horizontal strength of this portion.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
1 is a pair of upper and lower pillar bodies made of a square steel pipe, and 2 is FIG.
As shown in the figure, a joining cylinder in which four plates thicker than the pillar body 1 are joined in a rectangular shape, and small-diameter portions 3, 3 formed at both upper and lower ends thereof have the same shape as the pillar body 1, 1. In addition to being inserted into the ends, the ends of the column main body 1 and the joining cylinder 2 are butt-welded and integrally fixed. A plurality of screw holes 6 are formed in a side surface of the joining cylinder 2 where the beams are joined. Further, a horizontal plate 7 projecting in the beam direction is welded and fixed to the outer surface of the column main body 1 below the joining cylinder 2 at the end thereof, so as to project outward. . A bolt hole 8 is formed in the horizontal plate 7. Further, a diaphragm 9 is fixed inside the lower column main body 1 corresponding to the horizontal plate 7.

[0007] Beam 11, in the end portion of the joint side of its pillars, the upper portion of the front end surface, the end plate 13 so as to protrude outward from the upper flange 12, the upper
It is welded in advance so as to correspond to the flange 12 ,
A bolt hole 14 is formed in the end plate 13 so as to fit the screw hole 6 of the joining cylinder 2. On the other hand, a bolt hole 16 is formed at an end of the lower flange 15 so as to fit with the bolt hole 8 of the horizontal plate 7.

In the beam 11 constructed as described above, the lower flange 15 is placed on the horizontal plate 7, the two bolt holes 8, 16 are aligned with each other, and the bolt 17 is inserted from above. Join with each other. On the other hand, the end plate 13 is in contact with the outer surface of the joining cylinder 2 and is positioned so that the screw holes 6 of the joining cylinder 2 and the bolt holes 14 of the end plate 13 match each other. , The bolt 19 inserted through the bolt hole 14
Is screwed into the screw hole 6 and directly joined to the joining cylinder 2.

[0009]

As described above, according to the present invention, since the end plate of the beam is directly connected to the thick connecting cylinder and the lower flange is also directly connected to the horizontal plate protruding from the column by bolts. This eliminates the need for the joining plate, reduces the number of parts, and eliminates the need to perform bolting work at both ends of the joining plate as in the past, thus reducing the number of bolts and the man-hour required for bolting. There is.

In addition, since the lower flange of the beam can be placed on a horizontal plate protruding from the column to perform the bolting operation, the positioning of the bolt holes and the tightening operation of the bolts can be performed as compared with the conventional one. Good workability that can be performed much easier is obtained.

In addition, since the joining cylinder can be thicker than the column body, the joining strength at this portion is increased, and the column itself can be made thinner. In addition, a product that is lightweight and excellent in handling can be obtained. Special
In addition, the joining cylinder is thick and has high strength.
It is normal to join the body to this joining cylinder,
According to the invention, only the upper flange side of the beam is connected to the joining cylinder.
The lower flange side is the horizontal play of the pillar body.
The joint cylinder is placed on the
Only a short part corresponding to the upper flange is sufficient.
It is possible to manufacture joining cylinders that require high manufacturing costs as inexpensively as possible.
It is easy to handle because it is light and lightweight.
Is obtained.

Further, by providing the diaphragm at a position corresponding to the horizontal plate of the column main body, there is an effect that the joining strength at this portion can also be increased.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a main part of a column-beam joint portion showing an embodiment of the present invention.

FIG. 2 is a horizontal sectional view of a main part of the same.

FIG. 3 is an exploded perspective view of the joint.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pillar main body 2 Joining cylinder 6 Screw hole 7 Horizontal plate 9 Diaphragm 11 Beam 12 Upper flange 13 End plate 15 Lower flange 17 Bolt 19 Bolt

Claims (2)

(57) [Claims] An upper flange at an end of a beam made of H-shaped steel with a bolt which is screwed into a screw hole of a joining cylinder by welding a thick joining cylinder to an end of a column and integrally fixing the joining cylinder. Corresponding to
The girder end plate is fixed, and on the horizontal plate protruding from the column body below the joining cylinder,
Column / beam joining device characterized by mounting the lower flange of the beam and fixing it with bolts 2. The column / beam joining apparatus according to claim 1, wherein the diaphragm is fixed in the column main body corresponding to the horizontal plate.