JPH04153425A - Wedge ring fitting-type column and beam joining construction - Google Patents

Abstract

PURPOSE:To make it possible to join columns with beams easily and quickly by fixing beam joining metal fixtures having a circular cross-section to the ends of the beams, fitting inside rings to divided cylindrical surfaces of the up and down sections of them, and fitting wedge rings to them. CONSTITUTION:Beam joining metal fixtures 2 having a circular cross-section are fixed to the ends of beams 1, and divided cylindrical surfaces and bearing steps to the up and down sections of the beam joining metal fixtures 2. After that, the beam joining metal fixtures 2 are brought into contact with the outsides of beam receiving metal fixtures 6 fixed to columns 5, and cylindrical insides of the inside rings are fitted to the divided cylindrical surfaces of the beam joining metal fixtures 2. Wedge-like insides of wedge rings 11 are pushed and fitted to wedge-like outsides of the wedge rings 9. According to the constitution, the insides of the wedge rings 11 are only pushed and fitted to the wedge- like outsides, so that the beam receiving metal fixtures 6 can be easily, quickly and firmly joined with the beam joining metal fixtures 2.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a column-beam joint structure in which a column and a beam in a building are joined by fitting a cut ring.

[Conventional technology]

Conventionally, the joint structure of columns and beams was as follows:
As disclosed in Publication No. 3288, a capital block is interposed between the upper and lower columns, and they are connected by a large number of bolts, and a plurality of joint plates are installed between the joint beam of the column capital block and the end of the beam. (2) As published in Japanese Utility Model Publication No. 51-48414, the entire circumference of the end of the column is fixed by welding to the upper and lower parts of the joint. A joint structure is known in which the entire circumference of the end of the beam is fixed to the side of the joined body by welding.

[Problem to be solved by the invention]

In the case of the joint structure mentioned above (11), the capital block and the upper and lower columns are connected at the construction site with a large number of bolts,
In addition, since the joint beams of the column capital blocks and the beams are connected using multiple joint plates and a large number of bolts, assembly and construction time is long. Since it is necessary to drill a large number of bolt insertion holes in the flange, there is a problem that processing is complicated and costs are high.

In addition, in the case of the joint structure described in (2) above, a welding device is brought to the construction site and the entire circumference of the end of the column is fixed to the joint body by welding, and the entire circumference of the end of the beam is fixed to the joint body. Since the beam is fixed by welding, assembly takes a long time, and the beam must be held in a predetermined position when the beam is fixed to the joint by welding, making the assembly complicated.

SUMMARY OF THE INVENTION An object of the present invention is to provide a column-beam joint structure in which the above-mentioned problems can be advantageously solved and which is easy to manufacture.

[Means to solve the problem]

In order to achieve the above object, in the wedge ring fitting type column-beam joint structure of the present invention, a beam joint metal fitting 2 having an arcuate cross section is fixed to the end of the beam 1, and the upper part of the beam joint metal fitting 2 is fixed to the end of the beam 1. A divided cylindrical surface 3 and a support step 4 are provided at the lower part, and the beam joining fittings 2 of the plurality of beams 1 are brought into contact with the outer surface of the beam receiving fitting 6 fixed to the column 5. A metal inner ring 9 having a cylindrical inner surface 7 and a frusto-conical wedge-shaped outer surface 8 whose diameter decreases toward the end edge of the beam joint is fitted over the upper and lower divided cylindrical surfaces 3, respectively. A metal 4g IJ song 1 having a wedge-shaped inner surface 10 in the shape of a truncated cone whose diameter decreases toward the end edge of the beam joint metal fitting 9 is press-fitted onto the wedge-shaped outer surface 8 of the beam joint member 9 .

〔Example〕

Next, the present invention will be explained in detail using illustrated examples.

6 to 8 show a beam 12 with a beam joining fitting used in an embodiment of the present invention, in which a steel beam is attached to the center of the outer surface of the steel beam joining fitting 2 having an arcuate cross section. Connecting protrusions 13 are integrally arranged, and the ends of the steel beams 1 having a hollow cross section are fitted onto the tips of the protrusions 13 and fixed by welding, and are attached to the upper and lower parts of the beam joining fittings 2. , a divided cylindrical surface 3 that divides the cylinder into approximately four parts, and a support step 4 located at the end of the divided cylindrical surface 3 on the intermediate side of the beam joint fitting are provided.

9 and 10 show a metal inner ring 9 used in an embodiment of the present invention, in which a cylindrical inner surface 7 is provided inside a soft metal circular ring 14 made of mild steel.
is provided, and a frusto-conical wedge-shaped outer surface 8 is provided on the outside of the circular ring 14;
A plurality of slits 15 are provided at intervals in the circumferential direction of the ring.

FIG. 11 shows a metal cutting ring 11 used in an embodiment of the present invention, in which a circular ring I6 made of hard metal made of high-strength steel has an inner surface with the same slope as the wedge-shaped outer surface 8 of the inner ring 9. The wedge-shaped inner surface of the truncated cone 1
0, and an annular stopper 17 that projects toward the inside of the ring is integrally connected to the wedge-shaped inner surface small diameter end of the circular ring 16.

FIG. 12 shows a steel column 18 with a beam holder used in an embodiment of the present invention, and shows a lower steel pipe column 5A.
A steel lower beam bracket 20 having a beam joining bracket supporting protrusion 19 at its upper end is fixed by welding, and an intermediate beam bracket 21 made of a steel cylindrical body is attached to the upper part of the lower beam bracket 20 at the lower end thereof. are fitted and fixed by welding, a steel upper beam holder 22 is fitted to the upper end of the intermediate beam holder 21 and fixed by welding, and an upper steel pipe column is attached to the upper part of the upper beam holder 22. 5B are fixed by welding, and the lower beam bracket 20, the intermediate beam bracket 21, and the upper beam bracket 22 are fixed to each other by welding.
The beam holder 6 is constituted by the above.

FIG. 13 shows an example of the ring pushing tool 23, in which a hydraulic cylinder 26 is fixed to a support arm 25 of a U-shaped frame 24, and a movable pushing ring is connected to a piston rod of the hydraulic cylinder 26. The member 27 is slidably fitted into a guide groove 29 provided in an intermediate member 28 of the U-shaped frame 24, and the movable pushing member 27 is inserted into the fixed pushing member 30 of the U-shaped frame 24 by the hydraulic cylinder 26. be moved towards.

Next, the assembly construction order of the model ring insertion type column-beam joint structure of the present invention will be explained.

First, as shown in FIGS. 1 and 2, a plurality of beams 12 (four in the illustrated case) with beam joining fittings are arranged radially around the beam holder 6 of the steel column 18 with beam holder fittings. Beam joining metal fittings 2 in the beams I2 arranged and each having beam joining metal fittings
is brought into contact with the circumferential surface of the beam holder 6, and the lower end of each beam joint 2 is placed on a beam holder 6 supporting protrusion 19 at the bottom of the beam holder 6.

Next, as shown in Figures 3 to 5, each beam joint fitting 2
Column 5 is placed in advance over the upper and lower divided cylindrical surfaces 3 of
The metal inner ring 9 inserted into the pillar 5 is then fitted with the upper and lower metal imitation rings 11 which have been inserted into the pillar 5 in advance.
are tightened in the direction toward each other by the cut ring pushing tool 23, and the cut ring 11 is pushed into the tree-like outer surface 8 until the stopper 17 abuts against the end face of the beam joint fitting 2, and the cut ring 11 pushes the inner ring 9 is deformed to reduce its diameter, and the beam joining fitting 2 is tightened and fixed to the beam receiving fitting 6 via the inner ring 9 by the cut ring 11.

In the case of the above embodiment, since the soft metal inner ring 9 is interposed between the upper and lower divided cylindrical surfaces 3 of each beam joining fitting 2 and the hard metal cut ring 11, the divided cylindrical surfaces 3 It is possible to improve the adhesion of the fitting portion between the hard metal sleeve ring 11 and the hard metal sleeve ring 11. Further, since the plurality of slits 15 are provided in the circular ring 14 at intervals in the circumferential direction of the ring, the inner ring 9 can be easily deformed to reduce its diameter.

When carrying out this invention, the stopper 17 is attached to the wedge ring 11.
may be provided intermittently around the . Also, the intermediate beam bracket 21
may be divided at the middle part in the height direction.

〔Effect of the invention〕

Since this invention is configured as described above, it produces the effects described below.

A plurality of beam joint fittings 2 fixed to the ends of a plurality of beams 1,
The cylindrical inner surface 7 of the metal inner ring 9 is fitted over the upper and lower divided cylindrical surfaces 3 of each beam joining fitting 2 to abut against the outer surface of the beam holder 6 fixed to the pillar 5, and By performing a simple fitting operation of pushing and fitting the wedge-shaped inner surface 10 of the metal imitation ring 11 onto the dendritic outer surface 8 of the ring 9, the beam holder 6 fixed to the column 5 and the ends of the plurality of beams 1 are connected. It is possible to easily and quickly and firmly join the beam joining fittings 2 of the parts. In addition, the split cylindrical surfaces 3 are provided on the upper and lower parts of the beam joint fitting 2, and the cylindrical inner surface 7 is provided on the inner ring 9. Compared to the case where the ring 9 is provided with a truncated conical wedge-shaped inner surface,
The beam joint fittings 2 and the inner ring 9 are easy to manufacture.

[Brief Description of the Drawings] Figures 1 to 5 show embodiments of the present invention, and Figure 1 shows a state in which a plurality of beam joining metal fittings are in contact with a beam receiving metal fitting fixed to a column. 2 is a sectional view taken along the line A-A in FIG. 1, FIG. 3 is a longitudinal sectional front view showing the model ring fitting type column-beam joint structure of the present invention, and FIG. B-
A sectional view taken along the line B, and FIG. 5 is a longitudinal sectional front view showing an enlarged view of the tightening and fixing portion by the clamping ring in FIG. 3. Fig. 6 is a plan view of a beam with beam joining fittings used in an embodiment of the present invention, Fig. 7 is a sectional view taken along line CC of Fig. 6, and Fig. 8 is a partially enlarged view of the beam with beam joining fittings. 9 is a plan view showing a metal inner ring used in an embodiment of the present invention, FIG. 10 is a sectional view taken along the line D-D, and FIG. 11 is a plan view showing a metal inner ring used in an embodiment of the invention. FIG. 12 is a partially longitudinal front view showing a metal cutting ring, FIG. 12 is a longitudinal front view of a steel column with a beam holder used in an embodiment of the present invention, and FIG. 13 is an example of a model ring pushing ring pushing tool. FIG. In the figure, ■ is a beam, 2 is a beam joint, 3 is a divided cylindrical surface, 4 is a support step, 5 is a column, 6 is a beam support, 7 is a cylindrical inner surface, 8 is a tree-like outer surface, and 9 is a metal 10 is a wedge-shaped inner surface, 11 is a metal imitation ring, 12 is a beam with a beam joint metal fitting, 15 is a slit, 17 is a stopper, 18 is a steel column with a beam support metal fitting, 19 is a beam joint metal support Projection, 23 is 4g
It is an IJ ng oshikomi king tool. ■ ■

Claims (1)

[Claims] A beam joining fitting 2 having an arc-shaped cross section is fixed to the end of the beam 1, and a split cylindrical surface 3 and a supporting step 4 are provided at the upper and lower parts of the beam joining fitting 2. The joint metal fittings 2 are brought into contact with the outer surface of the beam support metal fittings 6 fixed to the pillars 5, and the joint metal fittings 2 are brought into contact with the outer surface of the beam support metal fittings 6, and are applied over the upper and lower divided cylindrical surfaces 3 of each beam joint metal fitting 2, respectively, toward the cylindrical inner surface 7 and the beam joint metal fitting edge side. A metal inner ring 9 having a wedge-shaped outer surface 8 in the shape of a frusto-cone that decreases in diameter is fitted onto the wedge-shaped outer surface 8 of the inner ring 9. A wedge ring fitting type column-beam joint structure in which a metal wedge ring 11 having a wedge-shaped inner surface 10 is press-fitted.