JPH0617485A - Junction structure between angular steel pipe column and steel-framed beam - Google Patents

Abstract

PURPOSE:To prevent the bulge of the side face of an angular steel pipe column by welding and jointing a beam to a column corner angle section so that the side face of the angular steel pipe column is set in the preset angle direction against the axial direction of the steel-framed beam. CONSTITUTION:A steel-framed beam B i5 fitted to the corner angle section of an angular steel pipe column A by welding so that the side face 1 of the angular steel pipe column A is set in the direction of 45 deg. against the axial direction X of the steel-framed beam B, e.g. the end section of the flange 2 of the steel-framed beam B is formed into a V-shape, it is butted and welded to the side faces 1, 1 of the column A, and a web 3 is butted and welded to the tip of the corner angle section. The steel-framed beam B is divided into a joint section B1 and a beam main body B2 and jointed with high-strength bolts at the site. A band ring 4 is welded to the outer periphery of the angular steel pipe column A at a junction, and a triangular stiffener 5 is fitted in it by welding. When concrete is filled into the angular steel pipe column A, and an air vent hole is provided on the stiffener 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint structure of a square steel pipe column and a steel beam in a high-rise office building or the like.

[0002]

When mounting a steel frame beam on a square steel pipe column, the beam is joined to the side face of the column in a direction perpendicular to the axial direction of the beam. In this case, the square steel plate swells due to the transmission of the force from the beam web. Therefore, the shear resistance of the beam web is lost. In addition, a thick diaphragm is required at the joint position to transmit the stress of the beam flange.

The present invention is intended to solve the above problems.

[0004]

The present invention comprises a square steel tubular column and a steel beam, and the side surface of the square steel tubular column is in a direction of 45 degrees with respect to the axial direction of the steel beam, and the steel beam is a corner angle of the square steel tubular column. In addition, the square steel pipe column is filled with concrete as necessary, the handling is attached to the outer periphery of the square steel pipe column, and the horizontal stiffener is provided inside. is there.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention is a square steel pipe column A and a steel beam B such as H-section steel
1 to 4, the side surface 1 of the square steel pipe column is 45 degrees with respect to the axial direction X of the steel beam B, and the steel beam B is a corner portion of the square steel pipe column A. It is attached by welding etc. For example, the end of the flange 2 of the steel beam B is V
It is formed into a shape and is butt-welded to the side surfaces 1 and 1 of the column, and the web 3 is butt-welded to the tip of the corner portion. The steel frame beam B is divided into a joint portion B1 and a beam body B2, and high-strength bolt connection is performed on site.

A band ring 4 is attached by welding to the outer periphery of the square steel pipe column A at the joint portion, and a triangular stiffener 5 is attached inside by welding.

In some cases, concrete 6 is filled in the square steel pipe pillar A, and in this case, the stiffener 5 has an air vent hole 7
Is provided.

5 and 6 show a case where an outer diaphragm 8 is provided in place of the bundling of the above embodiment.

FIG. 6 is an outline of the above-mentioned arrangement of columns and beams, and the square steel pipe columns A are arranged in an effective direction with respect to the seismic force S direction.

[0010]

According to the present invention, which has the above-described structure, since the side surface of the square steel pipe column is joined in the direction of 45 degrees with respect to the axial direction of the steel beam, the conventional side and side swelling of the square steel pipe occurs. Also, the diaphragm can be omitted or made thin.

[Brief description of drawings]

1 is a cross-sectional view of the present invention.

FIG. 2 is an elevational view of FIG.

FIG. 3 is a cross-sectional view of another embodiment.

FIG. 4 is a partial cross-sectional view of a main part.

FIG. 5 is a cross-sectional view of another embodiment.

FIG. 6 is an elevational view of FIG.

FIG. 7 is a plan view showing an outline of an arrangement state.

[Explanation of symbols]

A ... Square steel tube column, B ... Beam steel frame, 1 ... Side surface, 2 ... Flange,
3 ... Web, 4 ... Handling, 5 ... Stiffener, 6 ...
Concrete, 7 ... Air vent, 8 ... Outer diaphragm.

Claims (3)

[Claims] 1. A rectangular steel tube column and a steel frame beam, wherein the side surface of the rectangular steel tube column is at a direction of 45 degrees with respect to the axial direction of the steel frame beam, and the steel frame beam is attached to a corner portion of the rectangular steel tube column. The joint structure of square steel column and steel beam. 2. The joint structure of a square steel tubular column and a steel beam according to claim 1, wherein the square steel tubular column is filled with concrete. 3. The joint structure of a square steel pipe column and a steel beam according to claim 1, wherein a handling is attached to the outer periphery of the square steel pipe column, and a horizontal stiffener is provided inside.