JPH04306338A - Structure for jointing of shape steels - Google Patents

Abstract

PURPOSE:To provide a given jointing force by a method wherein a jointing member of a thick plate extending along an inner corner part of the flange and the web of a H-steel is secured by means of nut and bolts in a state to be positioned astride a jointing between the shape steels. CONSTITUTION:H-steels A positioned facing each other are butted against each other, a jointing member 3 is extended along an inner corner part between an upper flange 1 and a web 2 of the H-steel A, and is arranged in a state to be positioned astride a jointing between the H-steels. A doubling plate 4 is disposed to the web 2 and a doubling plate 5 is disposed to a lower flange 1 in a state to be positioned astride a jointing between the H-steels A. The jointing member 3 and the doubling plate 4 are secured to the H-steels A by means of high-strength bolts and nuts extending through the web 2 and the doubling plate 5 is fixed to the H-steels by means of high-strength bolts and nuts extending through the lower flange 1.

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 steel beams mainly made of H-section steel.

0002

[Problem to be Solved by the Invention] When joining steel beams made of shaped steel in a butt state, it is best to fix the joint plates along the upper and lower flanges and webs with bolts and nuts as shown in Figures 5 and 6. Common. By the way, in this case, the joint plate protrudes from the flange surface at the joint, and it is not well settled when deck plates, floorboards, etc. are placed on the steel beam, and a structure that can cope with this is required. Therefore, the present invention attempts to devise a structure in which the joint plate does not appear on the flange surface side.

0003

[Means for Solving the Problems] The present invention is for joining a section steel having a flange and a web in a butt state at the joining part of the section steel, and a thick plate attached to the inner corner of the flange and the web. This is a structure in which the connecting members are fixed together with bolts and nuts across the steel sections.

0004

[Example] H-shaped steel beams A and A become steel beams in Figures 1 and 2
is joined in a butt state and has upper and lower flanges 1, 1 and a web 2. The joining member 3 is arranged along the inner corner of the upper flange and the web 2, and straddles the opposing H-beams A, A. A splint 4 is placed on the second part of the web, and a splint 5 is placed on the bottom flange 1, spanning the H-beams A and A, respectively. The splice plate 5 is fixed to the H-beams A, A with high-strength bolts and nuts passing through the lower flange 1.

The joining member 3 is made of a plate that is up to three times thicker than the flange 1 and the web 2, and has a sloped or arcuate surface at the upper inner corner so that it can be closely attached to the inner corner of the H-shaped steel A. The cross section can be formed into an L-shaped cross-section as shown in FIG.

By making the joining member 3 a thick plate as described above, it is possible to provide the bending resistance of the joining portion equivalent to that of the conventional structure shown in FIGS. 5 and 6.

The joining member 3 can also be placed at the inner corner of the web 2 and the lower flange 1, as shown in FIG. Furthermore, T-shaped steel can be used as the shaped steel, and it can be applied not only to steel beams but also to upper and lower joints of steel columns.

[0008]

[Effects of the Invention] This invention has the above-mentioned structure, and by arranging the joining member at the corner of the H-shaped steel, etc., the splice does not protrude from the flange surface side of the shaped steel. It can be made into a partial structure, and can be made into a structure that does not impede the installation of floor finishing and other interior materials. Furthermore, by arranging the joining member at the inner corner of the web and the flange and using a thick plate, it is easy to provide the required joining strength.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of an embodiment of the invention.

FIG. 2 is a front view of FIG. 1.

FIG. 3 is a longitudinal sectional view of another embodiment.

FIG. 4 is a longitudinal sectional view of another embodiment.

FIG. 5 is a vertical cross-sectional view of a conventional example.

FIG. 6 is a front view of FIG. 5;

[Explanation of symbols]

A... Shaped steel, 1... Flange, 2... Web, 3... Joining member,
4... splicing plate, 5... splinting plate, 6... fixing tool.

Claims (1)

[Claims] [Claim 1] A steel section having a flange and a web is joined in a butt state, and a joining member of a thick plate attached to the inner corner of the flange and web is straddled between the sections and bolts and nuts are used. A joint structure of shaped steel characterized by being fixed.