JPH08291590A - Manufacture of column steel frame - Google Patents

Abstract

PURPOSE: To simplify equipment, and reduce labor when a built-up type column steel frame is manufactured. CONSTITUTION: Bolt holes 12 and 22 are respectively bored in a web 11 of H sections 1 and one flange 21 of H sections 2 having stature lower than it, and the flange 21 in which the bolt holes 22 of the H sections 2 low in stature are bored is butted against the H sections 1 relatively high in stature. A bolt is penetrated through the web 11 of both H sections 1 and 2 and the flange 21, and a nut is fastened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing an assembled column steel frame.

[0002]

2. Description of the Related Art Although a column steel frame having a cross-shaped cross section shown in FIG. 6 which is often used as a column steel frame of a steel reinforced concrete structure has excellent structural performance, it is assembled by an H-shaped steel web. Since the T-shaped steel web is butt-welded together, the production requires considerable equipment, labor, and time and cost. Further, when the bracket is previously integrated with the pillar steel frame, the bracket is welded in a state in which the pillar steel frame is laid down, but since the bracket finally protrudes in all directions, equipment corresponding to the shape is required.

This invention simplifies the equipment from the above background,
It proposes a method of manufacturing a pillar steel frame that can reduce the work time.

[0004]

According to the present invention, an H-section steel and a lower H-section steel are assembled and joined together by bolts to eliminate the need for welding, thereby simplifying equipment and reducing labor. .

A bolt hole is preliminarily formed in one of the flanges of the relatively high-formed H-section steel and the low-formed H-section steel, and the high-formed H-section web is formed in the low-formation H-section steel. The flanges having the bolt holes are abutted against each other, the bolts penetrate the webs and the flanges of both H-section steels, and the nuts are tightened to complete the production of the column steel frame having the webs in two directions.

Preliminary processing of both H-shaped steels is only the work of drilling bolt holes, and since the pillar steel frame is completed only by bolting at the time of assembly, equipment such as welding is not required, and the working time is Shortened.

When the brackets are integrated on all four sides of the completed column steel frame, one flange of the relatively low H-section steel is joined to the web of the high-rise H-section steel,
The brackets may be welded in advance to both flanges of the H-shaped steel with high growth and one flange of the H-shaped steel with low growth, and the brackets protrude to the four sides of each H-shaped steel before the pillar steel frame is constructed. Therefore, the equipment is simple and sufficient even in this case.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention is a method of assembling an H-section steel 1 and a lower H-section steel 2 as shown in FIG. 1 to produce a column steel frame 3 having a web in two directions shown in FIG. . The H-shaped steels 1 and 2 may be roll type or assembled type.

Prior to assembling the two types of H-section steels 1 and 2, the web 11 of the H-section steel 1 having a relatively high growth and the H having a low growth
Bolt holes 12 and 22 are formed in one flange 21 of the shaped steel 2, respectively. The bolt holes 12 and 22 are opened along the entire length of the H-shaped steels 1 and 2.

As shown in FIG. 1, assembling is performed by abutting a flange 21 having a bolt hole 22 of a low-profile H-section steel 2 on a web 11 of a high-grade H-section steel 1 to form both H-section steels 1. The bolt 4 is passed through the web 11 and the flange 21 of No. 2 and the nut is tightened, and the pillar steel frame 3 shown in FIG. 2 is completed.

In the embodiment, the pillar steel frame 3 in which the brackets 5 are integrated on all four sides is shown. In this case, the bracket 5 has both flanges 13 and 13 of the H-shaped steel 1 with high growth and the H-shaped steel with low growth. 2 are pre-welded to the flanges 21 on the side opposite to the flanges 21 in which the bolt holes 22 are opened, and project into the respective H-section steels 1 and 2 in only one direction before the pillar steel frame 3 is completed.

FIG. 3 shows the cross section of the web of the pillar steel frame 3, and FIG. 4 and FIG. 5 show the case of the T and L shapes, respectively. However, the low H-section steel 2 has only one side of the web 11. In the case of FIGS. 4 and 5 which are located at the position, the contact plate 6 is arranged on the opposite side of the flange 21 sandwiching the web 11 and bolted. Column steel frame 3
Is formed from webs 11, 23 of both H-section steels 1, 2.

[0013]

EFFECTS OF THE INVENTION A method of assembling a H-section steel and a lower H-section steel and joining them with bolts to complete a column steel frame having a web in two directions, so welding is not required, and equipment is required. The work can be simplified and the labor can be reduced.

Preliminary processing on both H-section steels is only the work of drilling bolt holes, and the work at the time of assembly is only bolt joining, so equipment such as welding is not required and work time is shortened. It

When the brackets are integrated on all four sides of the completed column steel frame, the brackets may be pre-welded to both flanges of the H-shaped steel with a high strength and one flange of the H-shaped steel with a low strength. Since the brackets do not project on the four sides of each H-shaped steel before forming the column steel frame, the equipment is simple and sufficient in this case as well.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state when a pillar steel frame is assembled.

FIG. 2 is a perspective view showing a completed state of a pillar steel frame.

FIG. 3 is a plan view of a pillar steel frame having a cruciform web.

FIG. 4 is a plan view of a column steel frame having a T-shaped web.

FIG. 5 is a plan view of a column steel frame having an L-shaped web.

FIG. 6 is a perspective view showing a conventional pillar steel frame having a cross shape.

[Explanation of symbols]

1 …… Relatively high H-section steel, 11 …… Web, 12 ……
Bolt hole, 13 ... Flange, 2 ... H with relatively low performance
Shaped steel, 21 …… flange, 22 …… bolt hole, 23 …… web, 3 …… column steel frame, 4 …… bolt, 5 …… bracket,
6 ... Patch.

Claims (1)

[Claims] 1. A method for manufacturing a column steel frame having a web in two directions by assembling an H-section steel and a H-section steel having a lower composition than the H-section steel, wherein a web of the H-section steel having a relatively higher composition and A bolt hole is made in each of the flanges of the low H-section steel, and a flange of the low-formation H-section steel with a bolt hole is butted against the web of the relatively high-section H-section steel. A method of manufacturing a pillar steel frame in which bolts are passed through the web and flange of and the nuts are tightened.