JPH0364659B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates primarily to variable angle joints in steel structures.

BACKGROUND OF THE INVENTION In recent steel structures, joints between columns and beams or the installation of braces have been widely implemented using joining metal fittings to simplify on-site construction.

Problems to be Solved by the Invention By the way, many buildings these days are constructed in various shapes in terms of appearance, aiming for a design effect or being influenced by restrictions on diagonal lines, so columns and beams do not necessarily connect at right angles. There is no guarantee that it will be done. Also,
Naturally, the mounting angle of the braces will vary depending on the spacing between the pillars.

For this reason, it has conventionally been necessary to manufacture joining metal fittings of various shapes in order to cope with these circumstances.

The present invention has been proposed to solve the above-mentioned conventional problems, and provides a variable angle joint fitting that can appropriately respond to changes in the joint angle between columns and beams and the joint angle of braces. The purpose is to

Means for Solving the Problems This invention provides a method for bending a steel frame member joint at an arbitrary angle along both steel members to be connected.
The above object is achieved by forming a variable angle joint from a flange portion that is bolted to both steel members and a plurality of web portions that protrude from the flange portion and are bolted to each other. It is something to do.

Embodiment Hereinafter, the present invention will be described with reference to an illustrated embodiment. A variable angle joint fitting 1 is formed from a flange portion 2 and web portions 3, 3. As shown in FIG.

The flange portion 2 is formed in the shape of an elongated rectangular plate, and a plurality of mounting holes 4, 4 are formed at both longitudinal ends of the flange portion 2, located on both sides of the web portions 3, 3 at both ends.

The web portions 3, 3 are provided at both longitudinal ends of the flange portion 2 to protrude along the longitudinal direction of the flange portion 2 to a predetermined length. Further, the web portions 3, 3 are provided in a protruding manner in the width direction of the flange portion 2 in a manner shifted by the thickness of the web portion 3. Further, a plurality of connecting holes 5, 5 are formed at the tips of the left and right web parts 3, 3 so as to overlap each other when the flange part 2 is bent in two about the center thereof.

Among the connecting holes 5, 5, the connecting holes 5, 5 formed in one of the web portions 3 are formed as long arc-shaped holes centered on the bending axis at the center of the flange portion 2.

In addition, in order to manufacture the variable angle joint metal fitting 1, for example, considering the size of the pillar, beam, and brace member,
Either several sizes of parts are made of cast steel in advance, or the flange part 2 and the web parts 3, 3 are formed separately and these two members are welded together. At this time, the attachment hole 4 and the connection hole 5 may be formed in advance according to standard details, or may be formed at the site immediately before use to match the actual details.

Next, a method for joining steel frame members using the variable angle joining fitting 1 will be explained.

Figures 3 and 4 show how to attach the brace 6.
The flange portion 2 is bent at a predetermined angle along the mounting angle of the brace 6.

Next, attach both ends of the flange portion 2 to the brace 6 and a steel member 7 such as a steel beam or a steel column through mounting holes 4, 4.
The web portions 3, 3 are connected by connecting holes 5, 5, respectively.
They are connected by connecting bolts 9, 9 passing through. Of these, FIG. 4 shows a case in which a variable angle joint fitting 10 as shown is used in addition to the variable angle joining metal fittings 1 and 1.

FIG. 5 shows a joining method between the steel column 11 and the steel beam 12, and FIG. 6 shows a variable angle joining fitting used for this.

Effects of the Invention Since the present invention has the above configuration, it has the following effects.

The angle can be freely changed according to the joining angle between columns and beams or the joining angle of braces, and these members can be joined extremely easily and reliably.

Products processed at angles of 30°, 40°, 45°, etc. can be made in advance at the factory, and then bending and drilling can be done for each actual production process, reducing the design, manufacturing and construction process. This allows for significant cost reductions.

[Brief explanation of drawings]

Figures 1 to 6 show an embodiment of the present invention. Figure 1 is a perspective view of a variable angle joint before bending, and Figure 2 is a perspective view of a variable angle joint after bending. A perspective view, FIGS. 3 and 4 are side views of the brace joint showing its use, and FIG.
The figure is a side view of a column/beam joint showing a column/beam joining method using a variable angle joint, and FIG. 6 is a perspective view of the variable angle joint. 1...Variable angle joint fitting, 2...Flange part,
3...Web part, 4...Mounting hole, 5...Connection hole,
6... Brace, 7... Steel frame member, 8... Mounting bolt, 9... Connection bolt, 10... Variable angle joint fitting.

Claims (1)

[Claims] 1 At the joint of steel frame members, a flange portion that is bent at an arbitrary angle along both steel frame members to be connected and bolted to both steel frame members, and a flange portion that protrudes from the flange portion and is connected to each other by bolts. A variable angle joining fitting characterized in that it is formed from a plurality of web parts.