JPH0721210B2 - Joint structure and column / beam joint structure - Google Patents

Description

TECHNICAL FIELD The present invention relates to a joint structure and a pillar / beam joint structure.

[Conventional technology]

In general, the columns and beams of the steel frame are joined by joining bolts such as high-strength bolts or welding.

[Problems to be Solved by the Invention]

However, this type of joining method is troublesome in processing the joint portion of the column and the beam, and particularly when a steel pipe column is used for the column,
It is necessary to specially reinforce the beam joints of the pillars or to project brackets for joining the beams, but in many cases, it is necessary to cut the pillars once and weld them again to join them. It is extremely troublesome.

Moreover, since the bracket is attached at the factory, the load is bulky and troublesome to carry when carrying it on site.

In addition, joining with bolts is troublesome because it is necessary to tighten many bolts at one place.

On the other hand, in welding by welding, the welding accuracy is affected by the skill of the welder, the weather, etc., and reliable welding may not be expected.

The present invention has been proposed in order to solve the above-described conventional problems, and a joint structure and a pillar / beam joint that can join a pillar and a beam of a steel frame with each other very easily and reliably. It is intended to provide a structure.

[Means for Solving the Problems]

The joint structure according to the first aspect of the present invention is a female joint having a joint hole, a male joint having a bolt through hole,
A lock bolt, a wedge, and a lock nut, and the male joint is inserted into a joint hole of the female joint, the lock bolt is inserted into a bolt through hole of the male joint, and an end portion of the bolt through hole is formed. A wedge is inserted, and a lock nut is fastened to an end portion of the lock bolt so that the male joint swells by the wedge and closely contacts the female joint.

The column-beam joint structure according to claim 2 of the present invention is characterized in that the column and beam of the steel frame are joined by the joint structure of the preceding paragraph.

〔Example〕

Hereinafter, a joint portion structure according to the present invention will be described with reference to an embodiment shown in the drawings. FIGS. 1, 2, and 3 show the joint portion structure according to the present invention. Reference numeral 1 is a female joint, and 2 is a male joint.

The female joint 1 has a circular cross-section joining hole 1b at a substantially central portion of a columnar block 1a having an arbitrary cross-section (square cross-section in the embodiment).
And the slit 1c is provided on the side surface.

The joining hole 1b and the slit 1c are continuous with each other, and both are continuously formed in the longitudinal direction of the columnar block 1a.

The male joint 2 is provided with a bolt through hole 2b at a substantially central portion of a columnar block 2a having a circular cross section, and an arm portion 2c is provided at a side portion so as to project.
It is formed by providing the slit 2d.

The bolt through hole 2b and the slit 2d are continuous with each other, and the bolt through hole 2b, the arm portion 2c and the slit 2d are all continuously formed in the longitudinal direction of the columnar block 2a.

The columnar block 2a of the male joint 2 is formed to have a diameter that can be inserted into the hole 1a of the female joint 1, and the arm portion 2c is formed to have a thickness capable of penetrating the slit 1c.

Further, the female joint 1 and the male joint 2 are formed of a general structural steel material, a hard synthetic resin material such as plastic, or the like, and generally differ depending on the members to be joined, and for example, the columns and beams of a steel frame When it is applied to joining, it is made of general structural steel, and when it is applied to joining parts such as furniture and daily necessities, it is made of hard synthetic rubber or hard synthetic resin.

The female joint 1 and the male joint 2 formed in this way are attached horizontally or vertically to the ends of the two members to be joined.

Then, the male joint 2 is inserted into the joint hole 1b of the female joint 1, the lock bolt 3 is inserted into the bolt through hole 2b of the male joint 2,
Further, the wedges 4, 4 are attached to both ends of the lock bolt 3, and subsequently, the lock nuts 5, 5 are respectively screwed.

The lock nuts 5 and 5 are strongly tightened, so that the wedges 4 and 4 are pushed into the holes 2b of the male joint 2 and the male joint 2 swells and closely contacts the female joint 1 with the female joint 1. The connection with the male joint 2 becomes possible (see FIG. 3).

Next, a case where this joint structure is applied to joint between a column and a beam of a steel frame will be described.

FIG. 4 shows a joint between a column and a beam of a steel frame. In the figure, reference numeral 6 is a column made of rectangular steel pipe, and 7 is H.
It is a steel beam made of shaped steel.

Female joints 1 and 1 are provided on the side surface of the beam joint portion of the pillar 6 by horizontally welding in accordance with the positions of the upper and lower flanges 7a and 7a of the beam 7.

Also, the male joints 2, 2 are attached to the ends of the upper and lower flanges 7a, 7a of the beam 7.
Are horizontally provided by welding the arm portion 2a.

A reinforcing member 8 such as a diaphragm or a steel rod is attached to the inside of the beam joint portion of the pillar 6 by horizontally welding in accordance with the positions of the upper and lower flanges 7a, 7a of the beam 7. The rigidity of the beam joint portion 6 is increased.

Further, the male joint 2 is inserted into the joint hole 1b of the female joint 1 from the side, and the lock bolt 3 is inserted into the bolt through hole 2b of the male joint 2.
And the wedges 4, 4 are attached to both ends of the lock bolt 3.
Are attached, and subsequently, the lock nuts 5 and 5 are screwed respectively.

The lock nuts 5, 5 on both the left and right ends are strong until the wedges 4, 4 are pushed deeply into the bolt through hole 2b of the male joint 2 and the columnar block 2a of the male joint 2 swells and strongly adheres to the female joint 1. It is tightened. The pillar 6 and the beam 7 are joined by such a structure.

In the case of the above joining, the female joint 1 and the steel pipe are welded, but FIGS. 5, 7, 6 and 8 show a method of joining the female joint 1 with a reinforcing steel rod or the like. Is shown.

Further, in FIGS. 5 and 7, the female joint 1 and the male joint 2 are columns 6.
6 and 8 show a division type in which these are divided into a plurality of parts, the details of which will be described below.

5 and 7 show that the end of the reinforcing member 8 such as a diaphragm or a reinforcing steel rod installed inside the beam joint of the pillar 1 is projected on the surface of the pillar 1 and the end of the reinforcing member 8 is The method for attaching the female joint 1 by welding is shown. FIG. 5 shows a longitudinal section thereof and FIG. 7 shows a transverse section thereof.

Further, FIGS. 6 and 8 show that in the embodiment shown in FIGS. 5 and 7, a steel rod with a male screw is used as the reinforcing member 8, and the female joint 1 is screwed into the male screw portion of the male rod with a male screw to attach it. Fig. 6 shows the method, and Fig. 6 shows its longitudinal section.
The figure shows its cross section.

Further, FIG. 9 shows another mounting method of the female joint 1 and the male joint 2, both of which show the side surface portion of the beam joint portion of the column 6 and the beam 7.
It shows how to attach it vertically to the end of the, instead of horizontally.

The male joint 2 is attached by welding an end plate 9 to the end of the beam 7 and welding the end plate 9.

Similarly, FIGS. 10, 11 and 12 show the structure of the joint between the column and the beam. Of these, the tenth is the column-beam joint when a through diaphragm is used for the reinforcing member 8. FIG. 11 shows the structure of the column-beam joint part when the inner diaphragm is used for the reinforcing member 8.

Further, FIG. 12 shows the structure of the column-beam joint when the H-shaped steel is used for the column 6.

〔The invention's effect〕

Since the present invention is configured as described above, it has the following effects.

The joint structure according to claim 1 of the present invention is
By simply tightening the lock nut, the members can be joined very easily, securely and firmly.

Further, in addition to joining structural members of a building such as joining columns and beams of a steel frame, it can be applied to joining small parts such as furniture and daily necessities.

In the pillar / beam joint structure according to the second aspect of the present invention, the pillar and the beam can be joined very simply, reliably and firmly by only tightening the lock nut.

Further, the female joint and the male joint may be simply attached to the beam joint portion and the beam end portion of the column by welding, and it is necessary to perform special processing by attaching a reinforcing member such as a diaphragm to the beam joint portion of the column. Since it is not there, processing is extremely easy, especially
It is effective when steel pipes are used for the columns.

Also, the female and male joints are extremely small parts,
Even if it is pre-installed in a factory or the like, the load does not become bulky when it is carried into the site, and handling such as transportation is extremely easy.

[Brief description of drawings]

1 to 12 show one embodiment of claims 1 and 2 according to the present invention. FIG. 1 is a front view of a joint structure, and FIGS. 2 and 3 are 1 is a cross-sectional view taken along the line aa in FIG. 1, FIG. 4 is a side view of a pillar / beam joint showing a pillar / beam joint structure, and FIGS. 7, 8 and 9 show a pillar / beam joint structure. Partial cross-sectional view of the column-beam joint shown, FIG. 5 is a partial side view of FIG. 7, FIG. 6 is a partial side view of FIG. 8, FIG. 10, FIG.
FIG. 12 and FIG. 12 are side views of the column / beam joint, which also show the column / beam joint structure. 1 ... Female joint, 2 ... Male joint, 3 ... Rock bolt, 4 ... Wedge,
5 ... Lock nut, 6 ... Pillar, 7 ... Beam, 8 ... Reinforcing member, 9
…end plate.

Claims (2)

[Claims] 1. A female joint having a joint hole, a male joint having a bolt through hole, a lock bolt, a wedge, and a lock nut, wherein the male joint is inserted into the joint hole of the female joint. The lock bolt is inserted through a bolt through hole of a male joint, a wedge is inserted at an end portion of the bolt through hole, and a lock nut is bulged at the end portion of the lock bolt by the wedge to cause the male joint to swell. A joint structure characterized by being tightened so as to come into close contact with a female joint. 2. A column-beam joint structure, wherein a column and a beam of a steel frame are joined by the joint structure according to claim 1.