JPS5835767Y2 - Joining hardware between H-shaped columns and beams in steel frame structures - Google Patents

Description

[Detailed description of the invention] This invention relates to a metal joint between an H-shaped column and a beam in a steel structure.
In particular, it is designed to sufficiently transmit the bending moment to the weak axis of the H-shaped column and beam, and to streamline the joining work.

As shown in Figure 1A, the connection between a beam and an H-shaped column with a weak axis in a conventional steel frame structure is simply by using a joint with a cross-sectional shape, and the bending moment of the H-shaped beam is transferred to the column. I can't tell you enough.

In this case, tensile force acts on the high-strength bolts that attach the metal fittings, which is undesirable.

In addition, in order to increase the resistance moment in the direction of the weak axis between the H-shaped column and the beam, there was a method shown in FIG. 1B.

In this case, a joining bracket is welded to the H-shaped pillar, the tip of the joining bracket is opposed to the H-shaped beam, and the joining bracket and the flange of the H-shaped beam are joined by a flat bracket.

Therefore, the bending moment in the direction of the weak axis is transmitted sufficiently, but it is inconvenient that the connecting bracket must be welded to the H-shaped column in advance at the factory, and that there is a protruding fixed point to transport it to the construction site afterwards. Furthermore, since the H-shaped beams are joined to the joining brackets on-site, there is an inconvenience that the number of joints increases.

Therefore, the present invention aims to connect the H-shaped column and the beam so that it can sufficiently transmit the bending moment in the direction of its weak axis, reduce the number of joints, and connect the H-shaped column and the beam immediately at the construction site. The purpose is to make it possible to perform.

Next, an embodiment of the present invention will be explained with reference to FIGS. 2 and 3.

The joining hardware 1 is formed from a flange 2 and a web 3 standing vertically on the flange 2.

The web 3 has a protrusion 4 which is flush with it and extends laterally of the flange 2.

The entire joining hardware 1 may be cast as one piece, or only the flange 2 may be cast, the web 3 may be made of a steel plate, and the two may be welded together. Furthermore, the protruding portion 4 of the web and the flange 2 may be made of a steel plate. Alternatively, the flange 2 and the protrusion 4 may be welded together.

Joining hardware 1, flange 2 for attaching to the H-shaped column and beam
A bolt hole 5 is provided in the protrusion 4.

Using the above joint hardware 1, connect the H-shaped column 6 of the steel structure
When joining the type beam 7, the flange 2 is overlapped with the inner surface of the flange 8 of the H-shaped column 6, a high-strength bolt 9 is inserted into the bolt hole, and the flange 2 is friction-bonded to the H-shaped column 6 with the high-strength bolt 9. do.

Next, the protruding part 4 is overlapped with the outer surface of the flange 10 of the H-shaped beam 7, and the protruding part 4 is similarly friction-bonded to the H-shaped beam 7 using high-strength bolts 9.

The H-shaped beam γ is joined to the H-shaped pillar 6 using the joining hardware 1 at each of the four corners of its outer periphery, and the joining between the H-shaped pillar and the beam at that point is completed.

Alternatively, the protruding portion 4 may be overlapped with the inner surface of the flange of the H-shaped beam 7, or the flange 2 may be modified so as to be overlapped with the outer surface of the flange of the H-shaped column 6.

Next, a second embodiment of the joining hardware 1 will be described with reference to FIG.

In this case, there are two webs, and the webs 3a and 3b perpendicular to the flange 2 have the same shape and both have protruding parts 4a,
4b, and H between the protruding parts 4a and 4b of the two webs.
Connect the H-shaped column and H-shaped beam by sandwiching the flange of the shaped beam.

Although the joining hardware 1 was attached using high-strength bolts, it can also be joined by welding.

As described above, according to the present invention, a metal joint having a protrusion 4 that is perpendicular to the flange 2 and protrudes laterally is used, so that the flanges of the H-shaped column 6 and the H-shaped beam 7 are connected to the flanges of the metal joint, respectively. 2 and the protruding portion 4 and are joined to each other in an overlapping manner.

Therefore, the bending moment in the weak axis direction will increase between H-shaped columns and beams, and H-shaped columns and beams can be easily joined at the construction site without any pretreatment, and the steel It is possible to save labor in joining the structure.

In addition, the joints between the H-shaped pillar and the beam are only between the joint hardware 1, the H-shaped pillar 6, and the beam 7, which is preferable in terms of strength because there are fewer joints compared to the conventional example.

Furthermore, since a tensile force is applied to the joint hardware after installation in the directions of arrows A and A in FIG. 2, no tensile force is applied to the high-strength bolt, and only a shearing force is applied.

[Brief explanation of drawings]

Figures 1A and B are a perspective view and a cross-sectional plan view showing the state of connection between a conventional H-shaped column and a beam, Figure 2 is a perspective view of the joint hardware of the present invention, and Figure 3 is a diagram showing the connection state of the conventional H-shaped column and beam. FIG. 4 is a perspective view showing a joined state of an H-shaped column and a beam, and FIG. 4 is a perspective view showing a second embodiment of the joining hardware. DESCRIPTION OF SYMBOLS 1... Joining hardware, 2... Flange, 3... Web, 4... Projection, 5... Bolt hole, 6... H-shaped column, γ... H-shaped beam.

Claims (1)

[Scope of utility model registration request] The flange 2 can be attached to the flange of the H-shaped column 6, and a web 3 is vertically erected on the center of the flange 2, and the web 3 has a protrusion extending to the side of the flange 2 on the same plane as the flange 2. 4, and the protrusion 4 can be attached to overlap the flange of the H-shaped beam 7, so that the bending moment in the direction of the weak axis between the H-shaped column and the beam can be sufficiently transmitted. A metal joint between H-shaped columns and beams in a steel structure.