JPS61225437A - Apparatus for connecting pillar and beam - 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 Field of Industrial Application This invention relates to a column and beam joining device made of a square steel pipe and a beam of H-shaped steel or the like.

Problems to be Solved by the Invention There are two types of bolt connections for steel columns and beams: a splint tee type and an end plate type. By the way, if the column is a square steel pipe,
Since rectangular steel pipes are usually thin-walled, the strength of the joints may be insufficient, and there is a risk of deformation. Furthermore, since the cross section is closed, there are problems such as difficulty in bolt connection work.

As an example of a means for solving the above-mentioned problems, the inventor proposed a column-beam joining device disclosed in Japanese Patent Publication No. 57-7258, in which a reinforcing member was provided inside the column and the column and beam were joined by an L-shaped port.

This invention is an extension of the above invention and has been developed to connect square steel pipe columns and beams made of H-section steel or the like using ordinary short high-strength bolts.

Means for Solving the Problems The configuration that is the gist of this invention is as described in the claims section above, and the main part is that an L-shape or a required shape is installed in a column made of a square steel pipe. Reinforcing metal fittings made of shaped steel are placed, and the pillars and beams are fixed by screwing and tightening nuts to bolts that pass through the beams, columns, and reinforcing metal fittings that are butted against the external side, and the details are shown below. This will be explained using an example.

Embodiment 1 In FIGS. 1 to 9, a column 1 is made of a square steel tube, and an L-shaped reinforcing metal fitting 2 is attached to the inner corner of the column. An end metal plate 4 made of a split tee is provided at the end of the beam 3 made of H-shaped steel. When joining, the end plate metal fittings 4 of the beam 3 are butted against the external side surface, and the end plate metal fittings 4. The column 1 and the beam 3 are fixed by screwing a nut 6 onto a bolt 5 passing through the column 1 and reinforcing hardware 2 and tightening this.

By the way, the reinforcing hardware 2 is made by bending a steel plate, or is made of cast steel, forged steel, or the like. The nut 6 can be bonded or welded to the inner surface of the reinforcing metal object 2.

Further, the reinforcing hardware 2 may be provided separately according to the heights of the upper and lower flanges of the beam 3, or may be integrally connected vertically.

A splint 7 for preventing the nut from rotating is placed on the reinforcing hardware 2, and a through hole 8 into which the nut 6 is fitted and locked.
should be drilled. Moreover, this splint 7 can be used to connect the upper and lower reinforcing metal fittings 2.

Embodiment 2 In FIGS. 10 to 16, the design of the reinforcing hardware 2 is changed from that of the previous embodiment, and a reinforcing hardware 2 with both ends bent in the same shape is used. 4. An end plate metal piece of a beam 3 placed obliquely at the inner corner of a column 1 made of a square steel pipe and abutted against the outer side surface. The column 1 and the beam 3 are fixed by screwing a nut 6 onto a bolt 5 passing through the column 1 and reinforcing hardware 2 and tightening this.

By the way, this reinforcing metal fitting 2 can have an angular cross section, and this reinforcing metal fitting 2 is provided corresponding to the connection of the beams 3. The reinforcing hardware 2 can be connected to form a hexagonal shape, a pentagonal shape, or the like.

Further, at the joint between the column and the beam, concrete 9 may be placed to bury the reinforcing hardware 2 to improve rigidity and yield strength.

Embodiment 3 In FIGS. 17 and 18, a metal fitting with a mouth-shaped cross section, for example, a square steel pipe cut to the required length, is used as the reinforcing metal fitting 2, and a gap is left inside the column 1 made of a square steel pipe. 4. Beam end sheet metal placed and butted against the outside side. A nut 6 is screwed onto a bolt 5 passing through the column 1 and the reinforcing hardware 2, and the column I and the beam 3 are fixed by tightening the nut 6. In this case as well, if necessary, concrete may be poured into the pillar 1 and the reinforcing hardware 2 may be buried therein.

Embodiment 4 In Fig. 19, a metal fitting with a machined cross section, such as an H-shaped steel cut to the required length, is used as the reinforcing metal fitting 2, and if necessary, the metal fitting with a machined cross section can be used as shown in the figure. They are assembled in a cross shape and placed inside a pillar l made of square steel pipes, and the pillars and beams are fixed using bolts and nuts as in the previous embodiment.

Effects of the Invention This invention has the above-mentioned structure, and even if it is a relatively thin-walled rectangular steel pipe column, the beam joint can be reliably reinforced with reinforcing hardware. Easily connects with tension bolts. This reinforcing hardware also ensures stress transmission from beam to beam.

[Brief explanation of drawings]

1 to 9 show the first embodiment, FIGS. 10 to 16 show the second embodiment, and FIGS. 17 and 18 show the third embodiment.
Figure 9 shows the fourth embodiment, Figure 1 is a cross-sectional view, Figure 2 is a cross-sectional view of the main part, Figure 3 is a perspective view of reinforcing hardware, Figure 4,
Figure 5 is a longitudinal sectional view, Figures 6, 7, 8, and 9.
The figure shows a cross-sectional view of the main part and a perspective view of the reinforcing hardware. Figs. 10 and 11 are cross-sectional views. Figs. Figure 16 is a cross-sectional view No. 17
18 are a cross-sectional view and a vertical cross-sectional view, and FIG. 19 is a cross-sectional view. 1. Column, 2. Reinforcement hardware, 3. Beam 4. End plate hardware, 5. Bolt, 6. Nut 7. Splinter, 8. Through hole, 9. Concrete. Fig. 1 Fig. 2 Fig. 3 J, 6゜ Fig. 8 Fig. 10 Fig. 11 Fig. a12 Fig. 3e Fig. 15 Fig. 16 Fig. 17 ≦ Fig. 18

Claims (4)

[Claims] (1) L-shaped reinforcing hardware is attached to the inner corner of a column made of square steel pipes, and nuts are screwed and tightened to bolts that pass through the beam end sheet metal fittings that butt against the outer surface of the column, the column, and the reinforcing metal fittings. , a column and beam joining device characterized by fixing a beam. (2) Reinforcing hardware with both ends bent into a square shape is placed diagonally at the inner corner of a column made of square steel pipes, and the beam end plate metal fittings are butted against the outer surface of the column, both ends of the column and the reinforcing metal fittings. A column and beam joining device characterized in that the column and beam are fixed by screwing and tightening a nut to a bolt that passes through a bent portion. (3) Beam end plate metal fittings in which mouth-shaped cross-section reinforcing metal fittings are placed with gaps inside the pillars made of square steel pipes, and are butted against the outer surface of the column;
A column and beam joining device characterized in that the column and beam are fixed by screwing and tightening a nut to a bolt that passes through the column and reinforcing hardware. (4) I-shaped reinforcing hardware is placed inside the column made of square steel pipes, and nuts are screwed and tightened to the bolts that pass through the beam end sheet metal fittings that butt against the outer surface of the column, the column, and the reinforcing metal fittings. A column/beam joining device characterized in that: