JPS5838804Y2 - Beam joining equipment - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a beam joining device.

Conventionally, as shown in FIG. 1, a beam joining device made of H-shaped steel or the like, or a connecting device for connecting beams, fixes a fitting 3 having a hat-shaped cross section to a web 2 of a beam 1, and also connects other large pieces to be joined. Welding the end plate 5 to the beam (or beam) 4 or
As shown in the figure, a mounting plate 8 with bolt holes is welded to the web 7 of the beam 6, and bolt holes are provided in the webs of other large wires (not shown) to be joined, and these are joined with bolts. I have to.

However, these devices require various joining parts to be attached to the beam by bolting, welding, etc., which requires a large number of parts, takes time to install, and increases the weight of the beam, leading to increased costs. It was the cause.

Furthermore, if the mounting plate 8 of the beam 6 in Fig. 2 is attached to the module center line M as shown in Figs. 3A and 3H, it is possible to join the other beams 9 with their centers aligned with the module core. Furthermore, if you shift the mounting position of the mounting plate 8 by half the thickness of the beam 9 as shown in Figure C to align the center line M of the module with the center of the beam 9, this There has been a problem in that the beam 6 has a different mounting direction, making installation of the beam 6 inconvenient.

In addition, when two beams made of channel steel are arranged parallel to each other with a slight distance apart, and another beam material is joined at right angles to this, a cut-and-raised part is provided in the web of the channel steel and the beam material is connected to this. A method has been proposed in which the two are joined together.

However, there is a problem in that the strength at the base of the cut and raised portion is weak, and the strength of the web is reduced due to the notch opening formed by the cut and raised portion.

Therefore, the purpose of this invention is to provide a beam joining device that has a small number of parts, is convenient for construction, and has excellent strength.

An embodiment of this invention will be explained with reference to FIGS. 4 and 5.

That is, this device connects the back surfaces of the bottom parts 11.11' of two channel members 10.10' to each other to form a beam member 1 with an H-shaped cross section.
2, and the bottom part 11.11' of each channel member 10.10' constituting the web 13 is cut and raised to form a cut and raised part 14.14' as shown in FIG. and the bottom portion 11.11' form a joint portion 15 having a Z-shaped cross section.

In addition, the bottom portions 11 and 11' of this joint 15 are fixed by spot welding, and the cut and raised portion 14 is fixed by spot welding.
．． A bolt hole 16 is provided in each of the holes 14'.

Further, the cut and raised portions 14,14' are provided at positions symmetrical to the module core with respect to the center line M.

Since this is done, other channel members 17 can be attached to this joint 15.
In order to join, it is sufficient to provide a bolt hole 19 in the web 18 of the channel member 17, and then overlap this bolt hole 19 with the bolt hole 16 of the cut-and-raised portion 14 (or 14') and tighten the bolts. By doing this, you can easily connect the beam material 12 and the channel material 17.
Moreover, the only joining parts are bolts, and there is no need for any mounting hardware, end plates, mounting plates, etc., so the cost of materials and the labor involved in mounting them can be omitted.

In addition, since the cut and raised portions 14.14' are provided at positions symmetrical with respect to the module core as the center line, the groove-shaped member 17
can be installed in the correct position, and this beam material 1
2 has no directionality, so the channel member 17 can always be installed in the correct position even if it is installed in the opposite direction.

Moreover, this joint part 15 is connected to the cut-and-raised part 14.14' and the bottom part 1.
1.11' is formed into a Z-shaped cross section, so the bottom part 11.11' is doubled in the central part, and is welded and firmly connected at this part, and the cut-and-raised part 14.
Even if there is a missing part of the bottom 11° 11' due to 14', the other bottom 11.11' always forms the web 13,
As described above, the beam joining device of this invention joins the bottom back surfaces of two channel members to each other to form a cross section H. A beam material having a shape is formed, and the bottom portions of each are cut and raised at positions shifted from each other in the longitudinal direction, and the cross section Z is formed by the bottom portions and the cut and raised portions.
Since the bottom parts of both channel members are welded together at the Z-shaped cross-section joint, the number of parts is small and construction is convenient. There is.

[Brief explanation of the drawing]

Figures 1 and 2 are respectively cutaway perspective views of a conventional beam joining device, Figure 3 is a horizontal cross-sectional view of the joint portion thereof, Figure 4 is a cutaway perspective view of an embodiment of this invention, and Figure 5. is a horizontal sectional view thereof. 10.10', 17... Channel member, 11.11'
...bottom, 12...beam material, 13.18.
... Web, 14.14' ... Cut-and-raised part,
15...Joint part.

Claims (2)

[Scope of utility model registration request] (1) The bottom back surfaces of two channel members are joined together to create a cross section H
The bottom portions of the respective grooves are cut and raised at positions shifted from each other in the longitudinal direction, and the bottom portions and the cut and raised portions form a joint having a Z-shaped cross section. The bottom portions of the materials are welded together at the joint of the Z-shaped cross section, and the end sides of a pair of other beams extending perpendicularly to the beam are cut and cut on both sides of the beam. A beam joining device that overlaps and joins the sides of the section. (2) The beam joining device according to claim (1), wherein the cut and raised portion has a joining bolt hole.