JPS5968453A - Production of pass diaphragm type pillar beam connected bodyfor steel skeletal - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a through-diaphragm column-beam joint used when connecting a steel beam with an H-shaped cross section to the middle of a hollow steel column. A method of manufacturing this type of column-beam joint is shown in FIGS. 1 to 3.

That is, as shown in FIG. 1(A), after cutting a square pipe into short lengths to form a square tube 1, as shown in FIG. A bevel is prepared, a backing metal 3 is attached to the inner circumferential wall, and then a square tube 1 is attached as shown in the same figure (C).
A panel zone 5 is formed by arranging diaphragms 4 wider than the planar area of the upper and lower surfaces of the diaphragm 4, and welding and fixing both of them at the edge 2.

On the other hand, parallel to this, as shown in FIG. 2 (A), the shaped steel is cut into predetermined dimensions, and a connecting hole 6a for the beam is drilled in the outer end of the shaped steel, and the bracket body 6 is attached. Then, as shown in the same figure (a), the inner edges 8 of the upper and lower seven flanges 7 are cut outward from the inner edges 10 of the web 9, that is, beveled. As shown in the same figure (ri), the upper and lower parts of the inner end of the nib 9 are scalloped to form a relief part 1.
form 1. Next, as shown in FIG. 11(1), a bracket 13 is formed by fixing a backing metal 12 to the back surface of the seven flange 7 at the relief portion 11.

Next, as shown in FIG. 3, the panel zone 5 and the bracket 13 are welded and fixed to form a column-beam joint 14. That is, the 7-lunge side edge 8 of the bracket 13 is attached to the diaphragm peripheral edge 4a of the panel zone 5 and the outer wall 1a of the rectangular tube 1.
This was a manufacturing method in which the web edge 10 and the web edge 10 were brought into contact with each other, and both were welded and fixed at the corresponding contact portions.

This had the drawback that it required a lot of time, especially for machining the bracket 13. In other words, since the edge 8 of the seven flange of the bracket 13 is cut into the edge 10 of the web, the amount of cutting increases. The cutting amount of No. 11 also increases. Moreover, the cutting of the edge 8 and the relief portion 11 is time-consuming because it involves a time-consuming machining process or a fusing process using a gas cutter that requires finishing with a grinder.

The present invention makes it possible to create a column-beam joint with high productivity by connecting a column-shaped connecting piece to the edge of the web so that the edge of the flange and the edge of the web are at the same level (protrusion amount). The purpose is to provide a method.

The configuration of the present invention will be specifically explained below based on the drawings.

First, as shown in FIG. 1, the panel zone 5 is formed by the same process as the conventional method described above.

Next, or in parallel with the formation of the panel zone 5, a bracket 130 is formed as shown in FIG.

That is, as shown in Fig. 4 (A), after cutting the shaped steel into a predetermined length, a connecting hole 60a for bolting the beam is drilled in the outer end of the shaped steel, and the bracket body is assembled. Form 6o.

This bracket body 60 has the same structure as that shown in FIG. 2(A) described above.

Next, the inner ends of the flanges 70 located above and below the bracket body 6o are tilted at an inclination angle of 45 degrees outward from the inner upper and lower ends of the web 9o, as shown in FIG. The edge 80 is formed by cutting the edge so that it becomes .

Next, as shown in FIG.
After forming the flange 7o, a backing metal 120 is welded and fixed to the back surface of the flange 7o at the relief portion 110, as shown in FIG.

The backing metal 120 is located at the base end of the inner edge 80 of the 7 flange 7o and the inner edge io of the web.

It should protrude to the right in the figure.

Next, as shown in FIG. 5, the bracket 130 formed by the above process is welded and fixed to the panel zone 5 formed in FIG. 1(0).

In other words, fit the backing metal 12.0 on the side of the bracket 130 to the back side of the upper and lower diaphragms 4 on the side of the panel zone 5,
7 Inner edge 8° of flange 70 and peripheral edge 4 of diaphragm 4
(a) are brought close to each other and butt welded at these adjacent portions.

Next, a pentagonal prism-shaped connecting piece 16 ( □ formed in a separate process) is attached so as to correspond to the gap 15 formed between the web edge 100 on the bracket 130 side and the outer wall 1 a of the rectangular tube 1 .
17(A) and (B)), and insert this into the gap 15 with its groove edge 16a facing the direction of the web 90, and as shown in FIG. Both ends are welded and fixed to the outer wall 1a of the rectangular tube 1' and the edge 100 of the web 90.

This completes the column-beam joint 140. FIG. 8 shows a sectional view of a main part of a column-beam joint 24 formed according to another example.

In this example, the upper and lower edges 20a of the square tube 20 and the 7-flange inner edge 22c of the bracket 22 are processed into flat edges without being grooved, and instead, the above-mentioned edges 20a and the flange inner edge of the diaphragm 21 are processed into flat edges. A column joint edge 21a and a bracket joint edge zib, which are beveled so as to be inclined with respect to each edge, are formed on the peripheral edge corresponding to the edge 22c. Note that the diaphragm 21 is molded by cold forging.

Then, the diaphragm 21 is welded and fixed to the upper and lower edges 20a of the square tube 20 at the column joint edges 21a thereof to form a panel zone, and then the brackets 22 are attached to the bracket joint edges 21b of the diaphragm 21 at the inner flange ends of the diaphragm 21. Edge 2
Weld and fix at 2c.

Next, a separately processed pentagonal prism-shaped connecting piece 23 is fitted into the gap between the inner web edge 2'2 (L) of the bracket 22 and the outer wall 20b of the rectangular tube 20, and the connecting piece 23 is connected to both inner and outer edges of the connecting piece 23. are welded and fixed to the outer wall 20b of the rectangular tube 20 and the inner edge 22d of the web, thereby completing the column-beam joint 24.

Since the present invention has the above configuration, the inner edge of the flange 70 of the bracket 130 and the inner edge of the web 90 are at the same level (projection amount), so the inner edge of the flange 70 can be opened. When processing the tip, at the part where the edge is located,
It is sufficient to simply process the edge at an angle, and there is no need to press the edge of the web toward the outer end, as in the conventional method, and the process can be performed quickly.

Further, since the relief portions 110 formed at the upper and lower portions of the inner end of the web 90 are partially formed at the upper and lower end edges 16b of the connecting piece 16, the amount of cutting (scalloping amount) of the web 90 is reduced. Only a small amount is required.

Further, although the processing and welding work of the connecting piece 16 that fits into the gap 15 between the edge 100 of the web 90 and the outer wall 1a of the rectangular tube 1 is increased compared to the conventional method, the shape of the connecting piece 16 is is a simple columnar shape, and processing and welding it does not require much effort.

As explained above, the present invention provides a panel zone formed by welding and fixing a diaphragm to the upper and lower surfaces of a cylindrical body such as a rectangular tube.
When fixing a bracket with an H-shaped cross section with the flange edge and the web edge at the same level, first weld and fix it to the diaphragm of the panel zone on the 7 lange side, and then connect the web of the bracket and the cylindrical body with a connecting piece. By welding and fixing the beams through the beams, the amount of machining required for the parts that require a lot of machining work can be minimized and a highly productive column-beam joint can be obtained.

[Brief explanation of the drawing]

Figures 1(A) to 1(0) are cross-sectional views showing the process of connecting the cylinder and the diaphragm, and Figures 2(A) to 2(1)
3 is a side view showing a conventional bracket processing process, FIG. 3 is a cross-sectional view of a main part showing a column-beam joint manufactured by a conventional method, and FIG. 4 is a side view showing a bracket processing process according to the present invention. 5 and 6 are sectional views of essential parts showing the process of connecting the bracket and the panel zone, FIG. 7(A) is a side view of the connecting plate used in the present invention, and FIG. 7(B) is The same sectional view and FIG. 8 are sectional views of essential parts of a column-beam joint manufactured according to another example of the present invention. 1-Square tube (cylindrical body) 1 1a-Outer wall 1 2-Upper and lower edges, 3-Backing metal, 4-Diaphragm, 4a-Periphery, 5-Panel zone, 15-Gap, 16 Series of ties, 60- Bracket body, 60a - connection hole, 70 - flange, 80 - open end edge, 90 - web, 100 one end edge, 1
10 - Relief part, 120 - Backing metal, 130 - Bracket, 140 - Column beam joint. Application agent, 1 Hisashi Matsumoto

Claims (1)

[Claims] 1. A flat diaphragm 4 wider than the area of the upper and lower surfaces of the cylinder 1 is placed on the top and bottom surfaces of the short cylinder 1, with its peripheral edge 4a extending laterally from the top and bottom edges 2 of the cylinder 1. The 7 flange edges 80 and the web edges 100 are protruded and fixed by welding.
Bracket 14 with an H-shaped cross section formed at approximately the same level as the
0 to the peripheral edge 4 of the diaphragm at its 7 flange edge 80.
a, and then the web edge 100 of the bracket.
A connecting piece 16 is inserted between the web edge 100 and the outer wall 1a of the cylindrical body, and both sides of the connecting piece 16 are connected to the web edge 100 and the outer wall 1a of the cylindrical body.
A method for manufacturing a through-diaphragm type column-beam joint for steel frames in which each of the two is welded and fixed.