JPH0612087Y2 - Joint structure of square steel column and H-shaped steel beam - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an improvement in a joint structure between a rectangular steel tube column and an H-shaped steel beam.

[Prior Art] Conventionally, as a joint structure of this type of rectangular steel tube column and H-shaped steel beam, for example, as shown in FIGS.
The horizontal diaphragms 104, 104 facing the horizontal flanges 103, 103 of the shaped steel beam 102 are integrally welded, and the web 105 of the H-shaped steel beam 102 and the square steel pipe column 101 are joined by welding, and
A structure is known in which the horizontal flanges 103, 103 of the H-shaped steel beam 102 and the horizontal diaphragms 104, 104 are joined by welding.

By the way, in the conventional joining structure of the rectangular steel tube column and the H-shaped steel beam, the H-shaped steel beam 102 is simply butted to the square steel tubular column 101 and the butted portion is welded, and therefore the joining strength is maintained. Therefore, a high welding technique is required, or the end faces of the horizontal flanges 103, 103 of the H-shaped steel beam 102 need to be processed into a tapered shape as shown in FIG. 4 in order to enhance the welding strength. There have been various problems that complicated and sophisticated technology is required.

In addition, among the previously proposed joint structures of a rectangular steel column and an H-shaped steel beam, as an interesting technology for the present invention, the actual construction of Japanese Utility Model No. 52-
There is one described in Japanese Patent No. 8909. In the one disclosed in this publication, a square hole is formed in each of the side walls of a rectangular steel tube column, while the web and the flange are formed in a pair of grooves formed by the web of the H-shaped steel beam and the upper and lower flanges. A stiffener that is vertical to the H-shaped steel beam is penetrated through the square hole of the square steel pipe column, and a flange and a stiffener of the stiffener are welded to each side wall of the square steel pipe column at the edge of the square hole. I am trying to do it.

[Problems to be Solved by the Invention] In the joining structure described in the above-mentioned publication, a large square hole through which an H-shaped steel beam can penetrate is formed in a square steel tube column, and therefore, in terms of strength. It has the significant structural weakness of becoming weak. In addition, the complicated work of welding the stiffener to the H-shaped steel beam is required, and the material cost of the stiffener, the processing cost, and the welding cost are inevitably high.

Therefore, an object of the present invention is to solve such conventional problems and to provide a simple and strong joint structure of a square steel column and an H-shaped steel beam without causing structural weakness. .

[Means for Solving Problems] In the joint structure of a rectangular steel tube column and an H-shaped steel beam of the present invention, a horizontal H-shaped insertion hole matching the cross-sectional shape of the H-shaped steel beam is formed in the opposite side wall of the rectangular steel tube. Then, the H-shaped steel beam is made to penetrate the insertion hole, and the contact portion between the H-shaped steel beam and the insertion hole is welded.

Further, in the case of joining a H-shaped steel beam to a T-shaped or cross-shaped steel column, the vertical web and horizontal flange of the H-shaped steel beam penetrating the square steel tubular column and the H-shaped steel orthogonal to the H-shaped steel beam The vertical web of the beam and the horizontal flange are brought into contact with each other.

[Operation] First, the H-shaped steel beam is inserted through the horizontal H-shaped insertion hole formed in the opposite side wall of the square steel tubular column to penetrate the H-shaped steel beam, and then the contact portion between the H-shaped steel beam and the insertion hole is welded. . Further, when joining an H-shaped steel beam in a T-shape or a cross shape to a square steel tubular column, the vertical web and horizontal flange of the H-shaped steel beam penetrating the square steel tubular column and the H-shaped steel orthogonal to the H-shaped steel beam With the vertical web and horizontal flange of the beam in contact with each other, the H-shaped steel beam is welded to the contact portion with the insertion hole. As a result, it is possible to obtain a joint structure of a rectangular steel tube column and an H-shaped steel beam, which is excellent in strength and has a low manufacturing cost, without causing structural weak points.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings. In the figure, 1 is a square steel tube column, 2 is an H-shaped steel beam composed of horizontal flanges 3 and 3 and a vertical web 4.

Therefore, the embodiment shown in FIGS.
The H-shaped steel beams 2 (2a) and 2 (2b) of the book are joined in a T-shape. That is, the rectangular steel pipe column 1
The left and right side walls 1a, 1b facing each other and the front side wall 1c have horizontal H-shaped insertion holes 5a, 5 conforming to the cross-sectional shape of the H-shaped steel beam 2.
b are formed so as to face each other. And square steel pipe column 1
H in the insertion holes 5a, 5b formed in the left and right side walls 1a, 1b of the
The shaped steel beam 2 (2a) is inserted to penetrate the rectangular steel pipe column 1, and the contact portions between the H shaped steel beam 2 (2a) and the insertion holes 5a and 5b are welded and fixed. Next, the H-shaped steel beam 2 (2
b) is inserted into a horizontal H-shaped insertion hole 5c formed in the front side wall 1c of the rectangular steel tube column 1 and penetrates through the H-shaped steel beam 2 (2a).
Abutting on each other at a right angle. In this case, H-shaped steel beam 2 (2b)
As shown in FIG. 1, a part of the horizontal flanges 3, 3 is cut off in advance so that the vertical web 4 of the front end of the contact point abuts on the vertical web 4 of the H-shaped steel beam 2 (2a). Then, the contact portion between the H-shaped steel beam 2 (2b) and the insertion hole 5c is welded and fixed in place. If necessary, H-shaped steel beam 2
The contact end face portions of the horizontal flanges 3 and 3 and the contact end face portions of the vertical flanges 4 and 4 of (2a) and 2 (2b) are welded and fixed.

FIG. 3 shows a rectangular steel tube 1 with three H-shaped steel beams 2 (2a), 2
It shows another embodiment in which (2b) and 2 (2c) are joined in a cross shape. That is, the left and right side walls 1a, 1b and the front and rear side walls 1c, 1c, which face each other of the rectangular steel pipe pillar 1,
Horizontal H-shaped insertion holes 6a to 6d corresponding to the cross-sectional shape of the H-shaped steel beam 2 are formed in 1d and facing each other. And
As in the embodiment shown in FIGS. 1 and 2, the H-shaped steel beam 2 (2a) is inserted through the horizontal H-shaped insertion holes 6a, 6b formed in the left and right side walls 1a, 1b of the rectangular steel tubular column 1. The H-shaped steel beams 2 (2b) and 2 are respectively inserted into the horizontal H-shaped insertion holes 6c and 6d formed in the front and rear side walls 1c and 1d while penetrating the steel tube column 1.
The H-shaped steel beams 2 (2a to 2) are inserted into the H-shaped steel beams 2 (2a to 2), which are abutted orthogonally to the H-shaped steel beams 2 (2a) that have passed through (2c).
The contact portions between c) and the horizontal H-shaped insertion holes 6a to 6d are welded and fixed together.

In addition, in the above embodiment, two H-shaped steel beams are connected to the square steel tubular column by T-shape.
The case of joining and fixing in a V shape or a cross shape has been described, but it goes without saying that one H-shaped steel beam can be penetrated and fixed to a square steel tube column.

[Effects of the Invention] The present invention is configured as described above, and a horizontal H-shaped insertion hole that matches the cross-sectional shape of an H-shaped steel beam is formed in a rectangular steel column, and the H-shaped steel beam is penetrated through the insertion hole. It was made to let,
Since the opening area of the insertion hole drilled in the rectangular steel pipe column is small,
There is no defect such as a decrease in strength of the rectangular steel tube column, and the H-shaped steel beam is firmly supported so as not to cause rattling by being inserted into an insertion hole of the same shape formed in the rectangular steel tube column. Therefore, the joint structure can be made stable and robust.

Further, since the H-shaped steel beam is welded and joined at all of the horizontal flange and the vertical web portion which come into contact with the insertion hole of the square steel pipe column, the welding surface becomes wide and the joining strength becomes extremely large, and the welding work is performed. It can be done easily.

In addition, it is possible to easily obtain a beam joint structure such as a T-shape or a cross shape as required. In addition, the vertical web and horizontal flange of the H-section steel beam penetrating the square steel tube column and the H-section steel beam orthogonal to the horizontal web Since the vertical web and the tip portion of the horizontal flange are brought into contact with each other, a unique effect such that the joining strength can be remarkably enhanced is exhibited.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is an exploded perspective view of a T-shaped joint structure, FIG. 2 is a sectional view of the T-shaped joint state, and FIG. 3 is a cross-shaped joint state. Sectional views, FIGS. 4 and 5 are explanatory views of the prior art. 1 ... Square steel tube column, 1 (1a-1d) ... Side wall, 2 (2
a to 2c) ... H-shaped steel beam, 3,3 ... horizontal flange, 4
... vertical webs, 5a to 5c, 6a to 6d ... insertion holes.

Claims (1)

[Scope of utility model registration request] 1. A horizontal H-shaped through hole that matches the cross-sectional shape of an H-shaped steel beam is formed in each side wall of a rectangular steel tubular column, and the H-shaped steel beam is passed through the through-hole, and the H-shaped steel beam is also formed. And a through hole is welded to each other, and when the H-shaped steel beam is joined to the rectangular steel tubular column in a T shape or a cross shape, a vertical web of the H-shaped steel beam penetrating the rectangular steel tubular column and H that is orthogonal to the horizontal flange and the H-shaped steel beam
A joint structure of a square steel tube column and an H-shaped steel beam, characterized in that a vertical web and a horizontal flange of the shaped steel beam are brought into contact with each other.