JP2713119B2 - Connection structure of precast coated steel tube concrete column and precast beam - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint structure between a precast (hereinafter abbreviated as PCa) coated steel pipe concrete column and a precast (hereinafter abbreviated as PCa) beam in a reinforced concrete building.

[0002]

2. Description of the Related Art Conventionally, since a steel pipe was not built in a column, in order to join a PCa beam to the column, a hole had to be penetrated to the opposite side of the column. When there was a beam on the opposite side or a beam in the orthogonal direction, the joint structure was difficult to join.

[0003]

As described above, even if there is a beam on the opposite side or a beam in the orthogonal direction, a connection that can join a PCa-coated steel pipe concrete column and a PCa beam by a simple method. The structure was devised.

[0004]

Means for Solving the Problems Concrete pillars coated with PCa steel are used as pillars, holes for joining screws are drilled in advance at portions where beams are to be joined, and couplers are attached and buried in the main bars in advance. The PCa beam is abutted, and the steel pipe wall is used as a fixing plate, and the beam is fastened to the column with joining screws and nuts to form a connection.

[0005]

FIG. 1 shows an embodiment. The steel pipe column 7 is covered with the PCa-coated concrete 6, and a hole is previously formed in a portion where the PCa beam 2 is joined. The main reinforcing bar 10 of the PCa beam 2 is a threaded reinforcing bar, and a coupler 3 is provided at an end thereof. The PCa-coated steel pipe 1 and the PCa beam 2
And a joining screw 4 is screwed in and fastened with a nut 5 to form a connection. PCa steel pipe column 1 and P as required before fastening
Mortar filling 14 is applied to the joint of the Ca beams. 9 is the main thread of the column and 8 is the tie. FIG. 2 shows a top view of the connection. FIG. 3 is a sectional view taken along the line AA.
1 is a stirrup. FIG. 4 shows the details of the joining screw 4, which is composed of a JIS screw 12 and a screw reinforcing portion 13.

[0006]

According to the present invention, since the steel pipe is built in the column, it is not necessary to drill a hole or the like to the side opposite to the side where the beam is attached, and
Even when there is a beam on the opposite side or when there is a beam in the orthogonal direction, the connection can be formed by a simple method.

[Brief description of the drawings]

FIG. 1 is a diagram showing an example of the present invention.

FIG. 2 is a top view of FIG.

FIG. 3 is a sectional view taken along line AA of FIG. 1;

FIG. 4 is a detailed view of a joining screw.

[Explanation of symbols]

1 ... PCa coated steel tube concrete column, 2 ... PC
a beam, 3 ... coupler, 4 ... joining screw, 5 ...
Nut, 6: coated concrete, 7: steel pipe, 8
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IS screw, 13: screw reinforcement, 14: filling mortar

Claims (1)

(57) [Claims] 1. Precast steel pipe concrete column 1
In the connection structure between the precast beam 2 and the precast beam 2, a coupler 3 is embedded in the precast beam in advance, and a joining screw 4 is passed through the hole pre-punched in the precast-coated steel pipe concrete column 1 to connect the coupling screw 4 to the coupler 3. A joint structure between a precast-coated steel pipe concrete column and a precast beam, which is screwed and fastened with a nut 5.