JPH0886017A - Connection part of precast concrete column - Google Patents

Abstract

PURPOSE: To easily use the main reinforcements at the upper end of a beam as continuous reinforcements. CONSTITUTION: A column 2 in which a recessed groove 6 conducting the upper end main reinforcements 5 of a beam in the Y-direction is provided at the lower face, is placed on the column 1 in which a recessed groove 4 conducting the upper end main reinforcements 5 of a beam in the X-direction is provided at the upper face and connected to the column 2. In this way, upper end main reinforcements of two directional beams are easily made as continuous reinforcements Topping concrete of the floor is charged in the recessed groove and the connection of column is made rigid.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a precast concrete pillar connecting portion.

[0002]

2. Description of the Related Art Conventionally, when a precast concrete beam and a column are connected to form a frame structure of a building, a PC steel material is provided at a position between the beam backs at the ends of the beam through the column.
The beam is tightly connected to the column with C steel material, but at this time, it is general that the main beam of the beam is also made through to further enhance the connection effect.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a precast concrete structure in which the upper main bars of the beam in the X and Y2 directions can be easily made into the through bars when the beam main bars are to be the through bars as described above. It is to provide the connection of the pillar.

[0004]

The constructional features of the connecting portion of the precast concrete pillar of the present invention are as follows: On the top surface of the precast concrete pillar having a concave groove for passing the upper main bar of the beam in the X direction, It is located at the point where a precast concrete column provided with a groove for passing the upper main bar of the beam in the Y direction was placed and connected.

[0005]

DESCRIPTION OF THE DRAWINGS In FIG. 1 which is an explanatory view of an embodiment of the present invention, 1 is a column on the lower floor and 2 is a column on the upper floor, both of which are made of precast concrete and have a square cross section.

The upper surface of the pillar 1 is provided with a concave groove 4 for passing the upper main bar 3 of the beam in the X direction, and the lower surface of the column 2 is provided with a concave groove 6 for passing the upper main bar 5 of the beam in the Y direction. When the pillar 2 is lowered from the state shown in the figure and placed on the pillar 1, the concave groove 4 and the concave groove 6 are arranged so as to intersect at right angles.

In the figure, 7 is a main bar of the column 1, and the columns 1 and 2 are connected to each other by connecting the upper protrusion of the main bar 7 to the lower end of the main bar (not shown) of the column 2 within the lower end of the column 2. Done.

After connecting the columns 1 and 2, a beam of precast concrete in the X direction and the Y direction is erected on the outside of the upper end of the column 1, and at this time, the upper main bars 3 and 5 are respectively provided with the concave grooves 4. , 6 to make the upper main bars of the beams in the X and Y directions through.

When the floor is constructed after the beams are erected,
The top main bars 3 and 5 and the recessed grooves 4 and 6 are housed in the floor topping concrete, and the columns, beams and floor are integrally connected.

[0010]

EFFECTS OF THE INVENTION Since the connecting portion of the precast concrete pillar of the present invention is as described above, it is connected to the pillar when the building frame is constructed with the precast concrete pillar and the pillar. Not only it is easy to make the upper main bar of the beam in the X and Y2 directions as a through bar, but
By inserting the floor topping concrete into the concave groove in the direction, there is an advantage that the connection between the upper and lower pillars becomes firm.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an embodiment of the present invention.

[Explanation of symbols]

1: pillars, 2: pillars, 3: upper main bars, 4: concave grooves, 5: upper main bars, 6: concave grooves, 7: main bars.

Claims (1)

[Claims] 1. A precast concrete structure having a concave groove on the lower surface for passing the upper main bar of the beam in the Y direction on the upper surface of a precast concrete column having a concave groove for passing the upper main bar of the beam in the X direction. A connection part of a precast concrete column, which is characterized by placing and connecting columns.