JPS62296027A - Apparatus for connecting pillar and beam - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a joining device for a beam and a column in a square steel pipe column.

[Conventional technology]

As one joining method when joining a beam such as an H-beam to a square steel pipe column (hereinafter referred to as a column), for example,
There is a method of joining columns and beams with bolts using a joining member as shown in Japanese Patent No. 7-150106. That is, in the joining device disclosed in the same publication, the joining member is inserted into the inner surface of the joining end of the column, the joining end is formed to be thicker than the wall of the pillar, and the end plate fixed to the end of the beam and the above-mentioned The connecting end of the thick column or the connecting member is tightened with bolts using the holes in the end plate and the screw holes in the connecting member. In this case, the upper and lower columns are joined by welding. Further, the joining member may be inserted into the inner surface of the end of either the upper or lower column, or may be inserted so as to hang on the inner surface of the end of both the upper and lower columns.

[Problem that the invention seeks to solve]

The above-mentioned joining device consists of splints in which the joining members are applied to each of the four inner surfaces of the column, so even if the entire splint is formed into a hollow body that is inserted into the inner surface of the column. In both cases, the joining members on each side are not rigid bodies, but merely have the function of increasing the wall thickness of the joining ends of the pillars. Therefore, when joining beams with bolts using such a joining member, the only way to effectively transmit the force from the flange of the beam to the column is to make the joining member considerably thick. However, simply increasing the plate thickness of the bonding member raises concerns about its strength. In particular, since there is nothing that crosses the column at the position corresponding to the flange of the beam, the problem is whether the large force from the beam can be smoothly transmitted to the column.

The present invention has been made to solve such problems.

[Means for solving problems]

Column-to-beam joining apparatus according to the present invention, in which the joining member to be inserted into the inner surface of the joining end of the pillar is formed into an integral joining hardware, and the joining hardware is provided with a diaphragm portion on the extension of the flange of the beam. It is something that

[For production]

In the present invention, the joint metal fittings inserted into the inner surface of the joint end of the column are formed as one piece, and the diaphragm part is located on the extension of the flange of the beam, so that a large force from the flange of the beam is passed through the diaphragm part. Smooth transmission to the pillar.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a longitudinal cross-sectional view of an embodiment of the present invention, and FIG. 2 is a cross-sectional view thereof. Further, FIG. 3 is an exploded perspective view of the joint portion. In the figure, numerals 1 and 2 are the upper and lower columns to be joined, and the abutting ends 3 are joined by welding around the entire circumference. A beam 4 is joined to the side surfaces of the butt ends of the pillars 1 and 2, and is made of H-beam steel or the like. Beam 4
An end plate 5 is fixed to each end of the column 1.2 so as to be tightly joined to the side surface of the abutting end of the column 1.2. Reference numeral 6 denotes joint metal fittings that are inserted into the inner surfaces of the joint ends of the columns 1 and 2, and in the case of the illustrated example, they are made of integrally molded cast steel metal fittings.

Note that the joining hardware 6 can also be made into an integral piece from a plate material by welding or the like. Reference numeral 7 denotes a diaphragm portion provided inside the joining metal fitting 6. That is, the diaphragm portion 7 is a diaphragm that connects the peripheral walls of the metal fitting 6 to each other. Therefore, the longitudinal section of the joining metal fitting 6 is H due to the diaphragm portion 7.
It has a shape.

Numeral 8 is a bolt for joining the beam 4 to the columns 1 and 2, and a high-strength bolt is usually used. A plurality of bolt holes 9 and 10 for inserting bolts 8 are provided at the joint end of the end plate 5 of the beam 4 and the pillar 122. In addition, screw holes 11 are provided in the joining hardware 6 at positions corresponding to the bolt holes 10 of the pillars 1 and 2 to screw into the bolts 8, and these bolt holes 10 and screw holes 11 are provided so that the diaphragm portion 7 4
It is provided so as to be on an extension of the flange 4a.

Therefore, when the end plate 5 of the beam 4 is fastened to the side surface of the butt end of the columns 1 and 2 with the bolt 8, the diaphragm part 7 of the joining hardware 6 is located on the extension of the flange 4a of the beam 4, so that The large tensile and compressive forces acting on the flange 4a are absorbed by the diaphragm portion 7 of the integral metal fitting 6.
It can be smoothly transmitted to the pillars 1 and 2 through.

As a result, the thickness of the joint metal fitting 6 can be reduced.

In the above embodiment, a case where a beam is joined to a column in an L-shape is shown, but the same applies to a 1'-shape, a cross-shape, etc. Further, the joint metal fitting 6 may be inserted into the inner surface of the joint end of the column and then fixed by spot welding, or may be temporarily fixed with a bolt using the screw hole 11 thereof. Furthermore, instead of welding the butt ends, splints 12 may be used to join the columns.

〔Effect of the invention〕

As described above, according to the present invention, since the integral joint metal fitting inserted into the inner surface of the joint end of the column has a diaphragm part on the extension of the flange of the beam, a large force from the flange of the beam is absorbed. It can be transmitted smoothly to the pillar through the diaphragm, and is safe in terms of strength. Moreover, this allows the joining hardware to be formed thinly, contributing to material savings and weight reduction.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view of an embodiment of the present invention, FIG. 2 is a cross-sectional view thereof, and FIG. 3 is an exploded perspective view of a joint. 1.2: Column, 4: Beam, 5: End plate 1, 6: Joining hardware, 7: Diaphragm part, 8: Bolt, 9°10: Bolt hole, 11: Screw hole.

Claims (1)

[Claims] Upper and lower columns to be joined, a beam that is tightly joined to the side surfaces of the butt ends of the columns, an end plate that is fixed to the end of the beam, and a screw that is screwed into the bolt that passes through the column and the end plate. and a joint metal fitting provided with a hole, the joint metal fitting being formed as an integral piece that is inserted into the inner surface of the joint end of the pillar, and a diaphragm portion being provided on an extension of the flange of the beam. Column and beam joining device featuring: