JP3124486B2 - Joint structure of steel column and steel beam - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a joint structure between a steel column having a flat cross section and a steel beam.

[0002]

2. Description of the Related Art The inventor has previously developed and provided various types of steel column having a flat cross-section that does not protrude, and that has a flat cross section, which is settled in a wall, and a frame structure using the column. For example, examples thereof are disclosed in JP-A-5-163773, JP-A-6-193141, and the like.

An object of the present invention is to develop those inventions and to provide a structure in which a steel beam can be easily joined to a steel column in three or four directions.

[0004]

A small L-shaped lip piece protruding from the outer corner of the L-shaped body in a direction crossing the web is provided, and a lip piece is provided at the tip of the L-shaped body in a direction crossing the web. This is a joint structure of a steel column and a beam, which are protruded, and are fixed with a joining plate over the small L-shaped lip piece and the web of the steel beam along with a joining plate.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A steel column A in cross section has an L-shaped body consisting of two orthogonal webs 1a, 1b. At the outer corner of the L-shaped main body, a small L-shaped lip piece 2 projecting in a direction orthogonal to the web 1a or 1b is provided, and the small L-shaped lip piece 2 is composed of orthogonal webs 2a and 2b. . The L-shaped main body and the small L-shaped lip piece 2 form a substantially cross-shaped cross-sectional shape with two long sides and two short sides. At each end of the L-shaped body, lip sides 3a,
3b are projected.

The above steel column A is formed by welding a shallow grooved steel material at the corners as shown in FIG. 1 or by protruding lip pieces 3a and 3b from an L-shaped body as shown in FIG. The small L-shaped lip piece 2 can be formed by welding at the corner.

The lip pieces 3a and 3b at the respective ends of the L-shaped main body may be fixed with small L-shaped pieces with metal fittings (see FIG. 3) or fixed with small groove-shaped pieces with metal fittings.

Although each lip protrudes in a direction perpendicular to the L-shaped main body, the lip may be inclined, that is, intersecting with the web of the L-shaped main body, depending on the degree of convergence.

The joint between the steel column A and the steel beam B made of H-section steel or the like is as shown in FIGS. 5, 6 and 7, and one piece of the small L-shaped lip piece 2 at the corner of the L-shaped main body. And a steel plate B made of H-shaped steel or the like, which is fixed by bolts and nuts 5 with a joining plate 4 attached along the web.

The lip pieces 3a and 3b at the ends of the L-shaped main body are cut off slightly larger than the actual size of the steel beam B, and the joining plate 6 is straddled between the web of the L-shaped main body and the web of the steel beam B. Affix together with bolts and nuts 5. Although the joining plate 5 is T-shaped, it may be rectangular.

[0011]

The steel pillar has a small L at the outer corner of the L-shaped body.
Since the cross-sectional shape is formed by projecting lip pieces, it is possible to provide a structure capable of joining steel beams in three or four directions in addition to steel beams in orthogonal directions such as crossing at right angles. The structure can be expected to have sufficient proof stress, and it is in good condition.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a column.

FIG. 2 is a cross-sectional view of a column according to another embodiment.

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

FIG. 4 is a column cross-sectional view of another embodiment.

FIG. 5 is a cross-sectional view of a column / beam joint.

FIG. 6 is an elevation view of FIG. 5;

FIG. 7 is a sectional view of a beam joint.

[Explanation of symbols]

A: steel column, B: steel beam, 2 ... small L-shaped lip piece, 3a,
3b: lip piece, 4, 6: joining plate.

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Claims (1)

(57) [Claims] 1. A small L-shaped lip piece protruding from the outer corner of the L-shaped main body in a direction crossing the web, and a lip piece protruding from a tip of the L-shaped main body in a direction crossing the web. A joint between a steel column and a steel beam, wherein the small L-shaped lip and the web of the steel beam are fixed together with a joining plate over the web. .