JPH0450722Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to an improvement in a joining structure when joining a column and a beam, both of which are made of metal.

[Prior Art] Conventionally, when constructing the structural frame of a building, a construction method is known in which a bracket is welded to a steel column and a steel beam is joined to the bracket by welding or the like. With this construction method, the brackets are welded to the pillars in advance, which causes problems such as the pillars bending when being transported.

Therefore, in order to solve this problem, a construction method as shown in Fig. 3 has recently been adopted. The steel column 1 in this construction method is square cylindrical, and the beam 2
A plurality of holes 1a are formed in a joint portion 1a where the two are joined. Further, the steel beam 2 is formed by joining an end plate 2b having a hole 2a at a position corresponding to the hole 1a to the end face of an I-shaped steel by welding or the like.

In order to join such column 1 and beam 2, beam 2
The end plate 2b is brought into contact with the joint part 1a of the column 1 while aligning the positions of the holes 1a and 2a,
They may be joined using bolts 3.

[Problems to be solved by the invention] However, according to the above-mentioned joining structure, although the beams 2 can be joined at right angles,
For example, there was a problem in that it was not possible to join at a 45° angle. In addition, if the column 1 is tilted in the vertical direction due to construction errors or shifted from its original position, it is necessary to connect the column 1 and the beam by bringing the planes into close contact with each other. However, the beam 11 cannot be attached unless the construction error of the column 1 is corrected, but there is a problem in that it is difficult to correct the error.

[Means for solving the problem] The joint structure of this invention is a joint structure between a pillar and a beam in which a metal beam is joined to a metal pillar, and a joint with a circular cross section where the pillar is joined to the beam. and the column body are integrated with their axes aligned, and a plurality of holes are formed at regular intervals in the vertical direction of the joint part to form a hole row, and this hole row is connected to the circumference of the joint part. In addition to forming multiple rows at regular intervals in the direction,
An end plate is integrally attached to the end face of the beam to be joined to the joint, which is formed by a concave curved surface with approximately the same curvature as the convex curved surface of the joint, and has holes drilled at positions corresponding to each of the hole rows. The column is characterized in that any row of holes in the joint portion of the column corresponds to holes in the end plate of the beam, and the bolts are inserted through the holes to connect them.

[Embodiment] FIGS. 1 and 2 show an embodiment of this invention, in which reference numeral 10 is a steel column and reference numeral 11 is a steel beam.

The pillar 10 is composed of a pillar body 10a and a joint part 10b that joins the beam 11, both of which have a circular cylindrical cross-sectional shape. These pillar bodies 10
a and the joint portion 10b are integrally constructed as a column 10 by welding. In the joint portion 10b, a plurality of holes 10b1 for joining the beams 11 are formed at regular intervals in the vertical direction to form a hole row. and,
Eight rows of holes are provided at equal intervals in the circumferential direction of the joint portion 10b, and adjacent rows of holes are formed at an angle of 45° with high precision. A nut 12 is attached to the inside of the hole 10b1.

The beam 11 is made of I-type steel and has a joint 1 on its end surface.
It is formed by integrally attaching an end plate 11a formed of a concave curved surface having approximately the same curvature as the convex curved surface of the outer surface of 0b. This end plate 11a is formed with two rows of holes 11a1 that can correspond to any two adjacent hole rows among the eight hole rows of the joint portion 10b.

Joint portion 10b of pillar 10 configured as described above
The end plate 11a of the beam 11 is joined by screwing the bolt 13 into the nut 12 with the hole 10b1 of the joint portion 10b and the hole 11a1 of the end plate 11a aligned.

According to the above joint structure, any two adjacent hole rows are selected from among the eight rows of holes in the joint portion 10b and made to correspond to the two rows of holes 11a1 in the end plate 11a. By this, beams 11, 11
Not only at right angles, but also at 45°, 135°, and 180°.
It can be easily joined with high precision in the angular direction, and can meet various design requirements.
Furthermore, even if there is a construction error in the mounting position or orientation of the pillar 10, the construction error can be absorbed because the convex curved surface of the joint portion 10b is joined to the concave curved surface of the end plate 11a. Therefore, conventionally,
Correcting the position and posture of the pillar 10, which was difficult, becomes easier, improving workability, and ultimately contributing to cost reduction.

In addition, when it is desired to make the column body 10a into a rectangular tube shape, as shown in FIG. Just do it like this. Also,
When the thickness of the plate constituting the joint portion 10b is sufficiently thick, the nut 12 may be omitted and a screw may be tightened in the hole 10b1 itself.

[Effect of the invention] In the joint structure of the pillar and beam of this invention, the cross-sectional shape of the joint of the pillar is circular, and a plurality of holes are drilled at regular intervals in the vertical direction of the joint. A plurality of hole rows are formed at regular intervals in the circumferential direction of the joint, and an end plate formed with a concave curved surface is integrally attached to the end surface of the beam. By selecting one of the hole rows and joining them in correspondence with the holes in the end plate, beams can be easily joined with high precision at any angle, meeting various design requirements. . In addition, since the column is constructed by integrating the joint and the column body, multiple hole rows for the joint can be formed in advance in a factory with high precision, which allows the beams to be joined with high precision. be able to. Furthermore, since the joint surfaces are curved surfaces, construction errors of the columns can be absorbed, the amount of correction can be reduced, and construction efficiency can be improved.

[Brief explanation of the drawing]

Figures 1 to 2 show one embodiment of this invention.
Figure A is an assembly diagram for joining a column and a beam, Figure B is a diagram showing a modified example of the column body, Figure 3 is a conventional example and is an assembly diagram of the column and beam, and Figure 4 is an assembly diagram of the column and beam.
The figure is a schematic diagram showing a state in which a beam is connected to a twisted column. 10...Column, 10b...Joint part, 10b1...
Hole, 11... Beam, 11a... End plate, 1
1a1... hole, 13... bolt.

Claims (1)

[Scope of utility model registration request] In a column-to-beam joint structure in which a metal beam is joined to a metal column, the pillar is integrated by aligning the axes of the circular cross-sectional joint where the beam joins with the pillar body. A plurality of holes are formed at regular intervals in the vertical direction of the joint part to form a hole row, and a plurality of hole rows are formed at regular intervals in the circumferential direction of the joint part, and the joint part An end plate formed of a concave curved surface having approximately the same curvature as the convex curved surface of the joint part and having holes drilled at positions corresponding to any of the above hole rows is integrally attached to the end face of the beam to be joined to the joint part. A column-to-beam joint structure, characterized in that any row of holes in the joint portion of the column corresponds to holes in the end plate of the beam, and the bolts are inserted through the holes to connect the columns.