JPH0736963Y2 - Connection structure between columns and beams - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a connection structure between a rectangular hollow column and a beam. More specifically, it improves the workability by avoiding the welding process, and at the same time, provides 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 a column 1, a beam mounting bracket 3 is butt-welded to a square hollow column 1 and a horizontal stiffener (diaphragm) is welded to the welded portion. S
Is arranged, and the beam 8 is connected to the beam mounting member 3 by a bot and a nut via a connecting member (not shown).

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

In order to solve such a problem, Japanese Unexamined Patent Application Publication No. Sho 62-62 shown in FIG.
As described in Japanese Patent No. 189230, the receiving plate 2 is inserted in the state of being in contact with the inner surface of one side of the prism inside the hollow rectangular column 1, and the receiving plate 2, the column 1 and the beam mounting bracket 3 are The bolt 4 is passed through the mounting hole, the bolt 4 is screwed into the screw hole or the nut 5 formed in the beam mounting bracket 3, the beam mounting bracket 3 is connected to the column 1, and the beam mounting bracket 3 is connected to the beam. Attach 8,
Thus, the connection strength between the beam 8 and the pillar 1 is increased.

However, in such a conventional example, in order to connect the beams 8 by attaching the beam attachment fittings 3 to the respective sides of the rectangular hollow pillar 1,
As shown in FIG. 11, the receiving plate 2 has its both ends cut at a substantially right angle, and the receiving plate 2 can be inserted into the square hollow pillar 1 in order to insert the receiving plate 2 into such a shape. The corners of the inner surface of the pillar 1 cannot be reached, the pressure receiving surface of the receiving plate 2 is small, it is difficult to increase the connection strength, and the accommodation of the receiving plate 2 inside the pillar 1 is poor, and the receiving plate There was a problem that the insertion work of 2 became troublesome.

The present invention has been made in view of such problems,
The purpose is to avoid welding work and improve workability, increase the pressure receiving area of the receiving plate in this case, increase the connection strength, and improve the receiving plate's fit, Can be easily inserted, and the nut can be firmly and securely held in place on the backing plate, making it easy to secure the beam mounting bracket, pillar, and backing plate with bolts. It is to provide a pillar-beam connection structure that can be reliably performed.

[Means for Solving the Problems] In the column-beam connecting structure of the present invention, the receiving plate 2 is inserted into the hollow rectangular column 1 by contacting the inner surface of each side of the prism to receive the receiving plate 2. , The pillar 1 and the beam mounting member 3 are connected by bolts 4 penetrating the mounting holes 6, and the beam 8 is attached to the beam mounting member 3.
In the connection structure of the pillar and the beam for connecting the two, the hexagonal nut 5 positioned so as to match the mounting hole 6 of the receiving plate 2 is used to hold the nut 5 in the receiving plate 2. Of the chamfered surfaces 7 which are pressed by the pressing pieces X on a plurality of surfaces, are spot-welded to the receiving plate 2, and become thicker as the widthwise ends of the receiving plate 2 get closer to the inner surface side. Is formed, and the chamfered surfaces 7 are opposed to each other.

[Operation] As described above, by inserting the backing plate 2 into the pillar 1, the backing plate 2,
By constructing a configuration in which the pillar 1 and the beam mounting bracket 3 are connected by bolts 4, the welding process is avoided, the workability thereof is improved, and the bracket does not significantly project from the pillar 1 and is also transported. While making it easy to perform, by forming chamfered surfaces 7 that become thicker toward the inner surface side at both end portions in the width direction of the receiving plate 2, and by making the chamfered surfaces 7 face each other,
Bring the backing plate 2 to the inner corner of the square hollow pillar 1,
The pressure receiving area of the receiving plate 2 is increased, the reinforcing strength is increased, and the chamfered surface 7 is opposed to the receiving plate 2, so that the receiving plate 2 fits well.
This is to facilitate the insertion work of.

Embodiment An embodiment 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 attachment fitting 3 is attached to a place where the beam 8 is attached to the pillar 1, and the beam 8 is attached to the beam attachment fitting 3 with bolts and nuts. The mounting structure of the beam mounting bracket 3 will be described in detail below.

Inside the column 1 where the beam mounting bracket 3 is attached, the backing plate 2 is inserted in the state of surface contact with the inner surface of each side of the prism 1 of the prism. Support plate 2, pillar 1, and substantially T-shaped beam mounting bracket 3
Mounting holes 6 are formed in each of the mounting holes 6, and a nut 5 is held in the receiving plate 2 at the positions of the mounting holes 6. Match the mounting holes 6 of the support plate 2, the pillar 1, and the beam mounting bracket 3 with the bolt 4
The beam mounting bracket 3 is mounted on the pillar 1 by penetrating the bolt and screwing the bolt 4 into the nut 5.

In this case, chamfered surfaces 7 are formed at both ends in the width direction of the receiving plate 2 so that the chamfered surfaces 7 become thicker toward the inner surface side, and the chamfered surfaces 7 are opposed to each other so that the receiving plate 2 is placed in the pillar 1. Is inserted.

In this way, by inserting the backing plate 2 inside the pillar 1, the backing plate 2,
The pillar 1 and the beam mounting bracket 3 are connected by bolts 4 to avoid the welding process and improve the workability of the pillar 1.
Since the bracket does not protrude significantly from this, it can be easily transported. Then, chamfered surfaces 7 that become thicker toward the inner surface side are formed at both ends of the receiving plate 2 in the width direction, and the chamfered surfaces 7 face each other. The pressure receiving area of the receiving plate 2 is increased to reach the inner corner portion, the reinforcing strength is increased, and the supporting strength of the beam 8 is made sufficient. Moreover, the chamfered surfaces 7 and 7 are opposed to each other so that the receiving plate 2 can be easily accommodated and the receiving plate 2 can be easily inserted.

Then, in order to hold the nut 5 on the receiving plate 2, as shown in FIG. 4, the nut 5 is screwed into the bolt 9 inserted through the mounting plate 6 into the mounting hole 6 of the receiving plate 2 and is pressed. Hold the nut 5 by spot welding the L-shaped piece 11 as the piece X,
After that, the bolt 9 is removed to hold the nut 5 on the receiving plate 2, or as shown in FIG. 5, two vertical plates having different heights are used.
A method of spot welding 12 and 12a to the receiving plate 2 and pressing the nut 5 from both sides, and spot welding the L-shaped piece 11 to prevent the nut 5 from coming off. In such a method, the short vertical plate 12a is shown in FIG. It is arranged on the corner side of the pillar 1 as shown in (c) so that there is no interference. Also, as shown in FIG.
A holding plate 13 as a holding piece X having a hat-shaped cross section is spot-welded to the receiving plate 2 to hold the nut 5, and the tongue piece 14 cut and raised from the holding plate 13 holds the nut 5. As shown in FIG. 7, there are various methods such as a method of holding a nut 5 by spot welding a pressing plate 15 as a pressing piece X as shown in a developed view of FIG. FIGS. 8 (a), (b), (c), and (d) show the connecting portion in the configuration in which the nut 5 is held.

In addition, in the embodiment, the beam mounting member 3 is attached to three sides of the pillar 1, but it may be attached to four sides or two sides.

[Effects of the Invention] In short, the present invention has a configuration in which the support plate is inserted into the pillar and the support plate, the pillar, and the beam mounting bracket are connected by bolts, so the welding process is avoided. The chamfered surface that is thicker as it gets closer to the inner surface is formed at both ends in the width direction of the backing plate while improving the workability, the bracket does not protrude significantly from the pillar, and it can be easily transported. Since the chamfered surfaces are opposed to each other, the backing plate is brought to the inner corner of the rectangular hollow column, the pressure receiving area of the backing plate is increased, the reinforcing strength is increased, and the chamfered surfaces are opposed to each other. , The receiving plate fits well, the receiving plate can be easily inserted, and the hexagonal nut positioned to match the mounting hole of the receiving plate is used to hold the nut on the receiving plate. Pressed by pressing pieces on multiple surfaces, and these pressing pieces are attached to the receiving plate. Since it is spot welded, the nut positioned so as to match the mounting hole of the receiving plate has multiple surfaces of its hexagon pressed down, and sufficient rotation prevention is made.
Moreover, since the pressing piece is spot-welded to the receiving plate, it is possible to avoid the displacement of the position of the positioned nut. Therefore, the beam mounting bracket, the pillar and the receiving plate are fixed by bolts. There is an advantage that work can be performed easily and surely.

[Brief description of drawings]

FIG. 1 is a plan sectional view of an embodiment of the present invention, FIG. 2 is a side view of the same, and FIGS. 3 (a) and 3 (b) are front views, plan views, and FIG. ) (B) is a side view, a front view, and FIG. 5 (a) (b) showing a method for holding the nut on the receiving plate.
(C) is a side view showing another method of the above, a front view, a plan view at the time of construction, and FIGS. 6 (a) and 6 (b) is a side view showing another method of the same, a front view, and FIG. (A) (b) (c) is a side view showing another method of the same as above, a front view, a development view of a holding metal fitting, and FIGS. 8 (a), (b), (c) and (d) are connection parts of the same. FIG. 9 is a perspective view of a conventional example, FIG. 10 is an enlarged perspective view of the same as above, FIG. 11 is a sectional view of another conventional example, FIG. Pillars, 2 are receiving plates, 3 are beam mounting brackets, 4 are bolts, 6 are mounting holes, 7 is a chamfered surface, and X is a pressing piece.

Claims (1)

[Scope of utility model registration request] 1. A hollow square pillar is inserted with a backing plate in contact with the inner surface of each side of the square, and the backing board, the pillar, and the beam mounting bracket are bolted through the three mounting holes. A connection structure of a column and a beam for connecting and connecting the beam to the beam mounting bracket,
To hold the nuts on the backing plate, hexagonal nuts positioned so as to match the mounting holes in the backing plate are pressed by the holding pieces on a plurality of the hexagonal faces, and these holding pieces are held by the holding plate. A connection structure of a column and a beam, which are spot-welded to each other and have chamfered surfaces that are substantially thick and which approach the inner surface side at both ends in the width direction of the receiving plate, and the chamfered surfaces face each other.