JP3375296B2 - Method of assembling reinforced concrete column and beam-to-column connection member and its assembling structure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for assembling a reinforced concrete column and a beam-column joining member and the assembling structure thereof.
It is about construction .

[0002]

2. Description of the Related Art Since different types of structural members are attached to the joint portion of a structure in which columns are reinforced concrete and beams are steel frames, FIG.
The beam-column joining member 13 as shown in (1) is used. In this beam-column joining member 13, a steel frame 17 made of a flat plate 16 is fixed to the upper and lower flanges 15 intersecting with the steel beam member 14 by ribs 18. As shown in (2) of the figure, when the rotating moment of the arrow D acts on the column 19, the steel frame 17 serves as a bearing resistance in the direction of the arrow E and improves the toughness at the joint with the beam. It played the role of letting.

[0003]

However, in the actual construction, the above-mentioned beam-column joint member is placed on a precast reinforced concrete column to adjust the level, or a support 20 as shown in FIG. 7 is built. It was necessary to adjust the level.

The present invention has been made in view of the above problems, and an object thereof is to make it possible to adjust the level of a beam-column joint member after the column main bar is assembled, or after it is assembled. Reinforced concrete columns and columns that can adjust the level of beam-column joint members without using supports
An object of the present invention is to provide an assembling method with a beam joining member and an assembling structure thereof .

[0005]

[Means for Solving the Problems] As means for solving the above problems, the invention of claim 1 is provided with upper and lower flanges.
Assemble column-beam joint members formed by intersecting steel beam members
Assembled to beam joints of column main bars including screwed reinforcing bars
K, the flat rectangular steel frame made of L-shaped steel is attached to the four corners.
Above the above by inserting the column main bar into the hole or notch
Installed on the lower flange and screwed into the above-mentioned screw rebar
The feature is that the position of the beam-column joint member is adjusted by operating the
And

According to the first aspect of the present invention, the column-beam connection is performed without using the support from the stage where the column main bar is assembled by operating the adjustment nut screwed into the column main bar or after the column main bar is assembled. The position of each member can be adjusted.

The invention according to claim 2 is a column including a screw reinforcing bar.
Steel beam members with upper and lower flanges at the main beam joints
A beam-column joining member formed by intersecting
Plane rectangular iron made of L-shaped steel for the upper and lower flanges of the joining member
The bone frame penetrates the column main bars at the fitting parts at the four corners.
Installed on the column main body, and the adjustment bars are
Is characterized by being screwed in .

According to the second aspect of the invention, the concrete of the column is restrained by the steel frame made of L-shaped steel, and the steel frame is in surface contact with the flange, so that horizontal and vertical resistance is generated. Improve the yield strength and toughness of the joint.

A third aspect of the present invention is characterized in that, in the second aspect, the fitting portion is a hole or a notch groove.

According to the third aspect of the present invention, since the column main bar can be reliably fixed by the hole or the notch groove, the assembling bar arrangement can be easily performed, and the column main bar is prevented from protruding outside. Further, in the case of the notch groove, the steel frame can be easily attached to the main bar.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a method for assembling a reinforced concrete column and a beam-column joining member according to the present invention and the assembling thereof
It is described with reference to the embodiment of the structure in the drawings. First, we will explain the assembly structure of reinforced concrete columns and beam-column joint members, and then we will explain reinforced concrete columns and beam-column joints.
A method of assembling the member will be described. Figure 1 (1)
Is a perspective view showing an assembly structure of a reinforced concrete column and a beam-column joining member , (2) is a perspective view of a notch groove, and FIG. 2 is a sectional view of the same.

For joining reinforced concrete columns and steel beams,
A beam-column joining member 1 as shown in FIG. 1 is used. In this beam-column joint member 1, a planar rectangular steel frame 5 made of L-shaped steel 4 is installed on each upper and lower flange 3 of an intersecting steel beam member 2, and three main bars are provided in holes 6 at four corners of the steel frame 5. 7 penetrates. The number of main bars 7 is not limited to three, but may be any number necessary for structural design. The column main bars 7 are constrained by penetrating the holes 6 so as not to stick out to the outside.

Further, one of the main pillar rebars 7 is a screw rebar 9, and an adjusting nut 10 is screwed into the rebar 9 to abut against and support the upper and lower steel frame 5, thereby supporting the steel frame. It is not always necessary to weld 5 to the upper and lower flanges 3. By operating the adjusting nut 10, the beam-column joining member 1 can be freely moved. This means that the beam-column joint member 1 can be adjusted in position, that is, its height can be adjusted by the adjusting nut 10.

Since the steel frame 5 is in surface contact with the flange 3 in this way, when the rotation moment of arrow A acts on the column 8 as shown in FIG. 3, in addition to the direction of arrow B, the direction of arrow C is shown. Bearing pressure resistance is generated to improve the proof stress at the joint with the beam. That is, the steel frame 5 made of L-shaped steel 4 and the pillar 8
Restrains the concrete and improves the toughness at the joint with the beam. The steel frame 5 is welded to the steel beam member 2 when a predetermined proof stress is required.
Further, the steel frame 5 may be provided with notches 6a instead of the holes 6.

Below, reinforced concrete columns and beam-column joint members
The assembling method with and will be described. In FIG. 4, the column-beam joint member 1 is assembled to the column main bar 7 which is grounded, and screw reinforcing bars are arranged at the four corners of the column main bar. The beam-column joining members are assembled to the beam-column joining points at three points of the column main bars thus assembled. The number is not limited to three, but can be increased or decreased as necessary.

At this time, the three main bars 7 penetrate through the steel frame 5 of the upper and lower flanges 3 of the steel beam member 2, and the adjusting nut 10 is screwed into one of the screw bars 9 of the pillar main bars 7. Is holding the steel frame 5. That is, since the column-beam joining member 1 can be freely moved by the adjusting nut 10, the position of the column-beam joining member 1, that is, the height is adjusted by operating the adjusting nut 10 (see FIG. 1). reference).

After performing this height adjustment, as shown in FIG.
As shown in (1), the reinforcing bar 11 assembled with the beam-column joining member 1 is lifted by a crane to be built. In this way, it becomes possible to easily build up the reinforcing bar 11 assembled with a plurality of column-beam joining members 1 at one time without requiring a support.

[0018]

As described above, the concrete of the column is restrained by the steel frame made of L-shaped steel, and the resistance in the horizontal direction and the vertical direction is generated in the steel frame which is in surface contact with the flange, so that the toughness at the joint can be improved.

It is possible to adjust the position of the beam-column joining member, that is, the height, by operating the nut screwed into the screw reinforcing bar.

It is possible to adjust the position of the beam-column joining member, that is, adjust the height without the need for a support.

A plurality of column-beam joining members can be assembled to the column main bar at one time.

It is possible to easily build a reinforcing bar in which a plurality of column-beam joining members are assembled at once.

[Brief description of drawings]

[Fig. 1] (1) shows reinforced concrete columns and beam-column joint members
FIG. 3 is a perspective view showing the assembling structure of (1), and (2) is a perspective view of a notch groove.

[Fig. 2] Assembly of reinforced concrete columns and beam-column joint members
It is sectional drawing which shows a cage structure.

FIG. 3 is a conceptual diagram showing a resistance force generated in a beam-column joining member.

FIG. 4 is a front view in which a beam-column joining member is assembled to a column main bar by an assembly.

FIG. 5 is a front view showing a method of constructing a column main bar in which a beam-column joining member is assembled.

FIG. 6A is a perspective view of a conventional beam-column joint member, and FIG.
FIG. 4 is a conceptual diagram showing a resistance force generated in a conventional beam-column joint member.

[Fig. 7] Assembly of reinforced concrete columns and beam-column joint members
It is a cross-sectional view showing the only way.

[Explanation of symbols]

1,13 Beam-column joint members 2,14 Steel beam members 3,15 flange 4 L-shaped steel 4a bottom 5,17 Steel frame 6 holes 6a Notch groove 7 pillars 8, 19 pillars 9 screw rebar 10 Adjustment nut 11 rebar 16 flat plate 18 ribs 20 Support

─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Hidehito Watanabe Toda Construction Co., Ltd. 1-7-1 Kyobashi, Chuo-ku, Tokyo (58) Fields investigated (Int.Cl. ⁷ , DB name) E04B 1/30

Claims (3)

(57) [Claims] 1. Crossing steel beam members having upper and lower flanges
The column-beam joint member formed by
Assembled to the beam joints of the column main reinforcement including the reinforcement and made of L-shaped steel.
A square steel frame with a hole or notch at its four corners.
Installed on the above-mentioned upper and lower flanges by penetrating the pillar main bar through the groove
Then, by operating the adjustment nut screwed into the above-mentioned screw reinforcement,
Reinforcing bar concrete characterized by adjusting the position of joining members
A method for assembling a reed column and a beam-column joining member. 2. A beam joint portion of a column main bar including a screw reinforcing bar,
Formed by crossing steel beam members with upper and lower flanges
A column-beam joint member is installed, and the upper and lower flanks of the column-beam joint member are installed.
A square steel frame made of L-shaped steel is attached to the four corners.
Is installed by penetrating the column main bar in the fitting part.
The adjustment nut was screwed into the rebar.
Of reinforced concrete columns and beam-column joints characterized by
Find structure. 3. The assembly structure of a reinforced concrete column and a beam-column joining member according to claim 2, wherein the fitting portion is a hole or a notch groove.