JPH0726436B2 - Connection structure between columns and beams - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a connection structure between a rectangular hollow column and a beam, and more specifically, to improve the workability by avoiding the welding process and at the same time, to provide a reinforcing effect in such a case. It relates to the technology to be enhanced.

[Prior Art] Conventionally, as shown in FIG. 10, in order to connect a beam 8 to an upper end portion of a rectangular hollow pillar 1, a beam mounting bracket 3 is butt-welded to the rectangular hollow pillar 1 and welded at the welding point. The horizontal stiffener (diaphragm) S is placed on the
The beams 8 are connected to each other with bolts and nuts through connecting fittings (not shown).

[Problems to be Solved by the Invention] However, a welding process for welding the beam mounting bracket 3 to the pillar 1 is required, and a positioning jig and a welding device are required for welding, which is low in workability, and the beam 8 and the cross section. There is a problem in that the beam mounting bracket 3 having a substantially equal shape and a large size is projected, and the transportation efficiency by a truck or the like is reduced.

The present invention has been made in view of such problems,
The purpose is to prevent the buckling of the beam mounting bracket in such a case while avoiding welding work and improving the workability,
It is an object of the present invention to provide a connection structure between a column and a beam that can make the connection strength of the beam sufficient.

[Means for Solving the Problem] The connection structure of a pillar and a beam according to the present invention is a structure in which a beam 8 is connected to an upper end of a hollow prismatic pillar 1 through a beam mounting member 3.
On the lower surface of the horizontal plate-shaped beam mounting member 3, a rectangular pipe-shaped body 7 that is fitted and inserted on the outer surface or the inner surface of the pillar 1 is welded and hung down, and the rectangular pipe-shaped body 7 that is fitted on the upper end of the pillar 1 is formed on the pillar. 1
A horizontal plate-shaped beam fitting 3 that prevents the buckling of the horizontal plate-shaped beam fitting 3 from buckling at the upper end of the column 1 by making a face-contact with the lower surface of the beam fitting 3 to form a rectangular pipe. It is characterized in that it is attached to the body 7 or the pillar 1.

[Operation] In this way, the pillar 1 is attached to the lower surface of the horizontal plate-shaped beam mounting bracket 3.
The rectangular pipe-shaped body 7 fitted on the outer surface or the inner surface of the column is welded and hung down, and the rectangular pipe-shaped body 7 fitted on the upper end of the pillar 1 is attached to the pillar 1 by the bolts 4 and the nuts 5. , The rectangular pipe-shaped body 7 hanging from the beam mounting bracket 3 is fitted into the pillar 1, and the rectangular pipe-shaped body 7 is connected to the pillar 1 with the bolts 4 and the nuts 5 to avoid the welding process and improve the workability. The buckling prevention metal fitting 9 for preventing the horizontal plate-shaped beam mounting metal fitting 3 from buckling at the upper end portion of the pillar 1 while making it easier to carry and the like without the bracket protruding significantly from the pillar 1. Is attached to the rectangular pipe-shaped body 7 or the pillar 1 by making the lower surface of the beam mounting member 3 face-to-face with each other, thereby preventing the buckling of the horizontal plate-shaped beam mounting member 3 and connecting strength of the beam 8. Is sufficient.

Embodiments Embodiments of the present invention will be described in detail below with reference to the drawings.

The pillar 1 is formed in a hollow quadrangle, and the beam mounting bracket 3 is mounted on the upper end of the pillar 1 with bolts 4 and nuts 5, and the beam 8 is mounted on the beam mounting bracket 3 with bolts and nuts. The mounting structure of the beam mounting bracket 3 will be described in detail below.

1 to 4 show the first embodiment, in which a rectangular pipe-shaped body 7 to be fitted on the outer surface of the pillar 1 is attached to the lower surface of the central portion of the horizontal plate-shaped substantially cross-shaped beam mounting member 3. Welded and suspended. A rib-shaped buckling prevention metal member 9 is welded and attached between the beam mounting member 3 and the rectangular pipe-shaped body 7. A nut 5 is held at a mounting hole 6 of the receiving plate 2 inserted into the pillar 1. Mounting holes 6 are also formed in the pillar 1 and the rectangular pipe-shaped body 7.

Then, as shown in FIG. 3, the backing plate 2 is inserted into the pillar 1, and the rectangular pipe-shaped body 7 of the beam mounting member 3 is fitted to the outside of the pillar 1 to form the rectangular pipe-shaped body 7 and the pillar 1. And the mounting hole 6 of the backing plate 2
The bolt 4 penetrating through is screwed onto the nut 5 to connect the beam mounting member 3 to the column 1. Also, T-shaped beam mounting bracket
Similarly, the support plate 2 is located slightly below the beam mounting bracket 3 in which 3a is a horizontal plate.
It is attached to the pillar 1 with bolts 4 and nuts 5 through. Next, the substantially H-shaped beam 8 is attached to the horizontal plate-shaped beam mounting member 3 and the T-shaped beam mounting member 3a with bolts and nuts.

In this way, the rectangular pipe-shaped body 7 that is fitted on the outer surface or the inner surface of the pillar 1 is welded and hung down on the lower surface of the horizontal plate-shaped beam fitting 3, and the rectangular pipe-shaped body that is fitted on the upper end of the pillar 1 is inserted. The body 7 is attached to the pillar 1 with the bolts 4 and the nuts 5, so that the rectangular pipe-shaped body 7 hanging from the beam mounting bracket 3 is fitted into the pillar 1, and the rectangular pipe-shaped body 7 is attached to the pillar 1 with the bolts 4 and 4. By connecting with the nut 5, the welding process can be avoided, the workability thereof can be improved, the bracket does not significantly project from the pillar 1, and the transportation and the like can be easily performed. Further, the buckling prevention metal fitting 9 for preventing the horizontal plate-shaped beam mounting metal fitting 3 from buckling at the upper end portion of the pillar 1 is provided on the rectangular pipe-shaped body 7 by making face contact with the lower surface of the beam mounting metal fitting 3, and While using the plate-shaped beam mounting member 3, its buckling can be prevented and the connection strength of the beam 8 can be made sufficient.

5 to 8 show a second embodiment, in which the buckling prevention metal fitting 9 is formed separately from the beam mounting metal fitting 3 and the rectangular pipe-shaped body 7 and is formed in an L-shape. The buckling prevention metal member 9 has a rib-shaped vertical piece 10. A mounting hole 6 is also formed in the beam mounting member 3, and the nut 5 is held in conformity with the rectangular pipe-shaped body 7.

Then, the rectangular pipe-shaped body 7 of the beam mounting member 3 is inserted into the inside of the pillar 1, and the bolt 4 inserted into the mounting hole 6 of the beam mounting member 3, the pillar 1 and the rectangular pipe-shaped body 7 is screwed into the nut 5. Thus, the beam mounting member 3 is connected to the pillar 1. The beam 8 is connected to the beam mounting member 3 with bolts and nuts as in the above-described embodiment.

Then, the buckling prevention metal fitting 9 is attached to the pillar 1, and does not interfere with the attachment thereof.

In the embodiment, two sets of the L-shaped rectangular pipe-shaped bodies 7 are used, but the shape and form of the rectangular pipe-shaped body 7 can be variously changed.

[Effects of the Invention] In summary, according to the present invention, the rectangular pipe-like body fitted on the outer surface or the inner surface of the column is welded and hung down on the lower surface of the horizontal plate-shaped beam fitting, and fitted on the upper end of the column. Since the rectangular pipe-shaped body is attached to the pillar with bolts and nuts, the rectangular pipe-shaped body hanging from the beam mounting bracket is fitted into the pillar,
The horizontal plate is connected to the pillar by connecting the prismatic pipe to the pillar with bolts and nuts, avoiding the welding process, improving its workability, and preventing the bracket from protruding significantly from the pillar and easily carrying it. -Shaped beam mounting metal fittings are attached to the square pipe-shaped body or the pillar by making the buckling prevention metal fittings that prevent buckling at the upper end of the pillars face the lower surface of the beam mounting metal fittings. There is an advantage that the buckling can be prevented while using the metal fitting, and the connection strength of the beam can be made sufficient.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an embodiment of the present invention, FIG. 2 is a side view of the same as above, FIG. 3 is a partially enlarged sectional view of the same as above, and FIG. FIG. 5 is an exploded perspective view of another embodiment of the above, FIG. 6 is a side view of the above, and FIG.
The figure is a partially enlarged sectional view of the same as above, FIGS. 8 (a) and 8 (b) are front views and side views of the above-mentioned buckling prevention fitting, FIG. 9 is a perspective view of a conventional example, and FIG. 10 is an enlarged perspective view of the same. It is a figure, 1 is a pillar, 3 is a beam attachment metal fitting, 4 is a bolt, 5 is a nut, 7 is a rectangular pipe-shaped body, 8 is a beam, and 9 is a buckling prevention metal fitting.

Claims (1)

[Claims] 1. A rectangular pipe-shaped body having a structure in which a beam is connected to an upper end of a hollow prismatic column through a beam mounting bracket, and the outer surface or the inner surface of the column is fitted into the lower surface of the horizontal plate-shaped beam mounting bracket. Is welded and hung down, and the square pipe-shaped body that is fitted and inserted into the upper end of the column is attached to the column with bolts and nuts, and the horizontal plate-shaped beam mounting bracket is prevented from buckling at the upper end of the column. A column-to-beam connection structure characterized in that a buckling prevention metal fitting is brought into surface contact with a lower surface of a beam mounting metal fitting and attached to a rectangular pipe-shaped body or a pillar.