JPH05187081A - Precast concrete panel for reinforced concrete wall - Google Patents

Abstract

PURPOSE:To improve constructing ability and economical efficiency by a method wherein truss reinforcing bars are arranged between two PC plates having respective end parts displaced from each other and the upper and the lower end parts of the truss reinforcing bar are embedded in the PC plates. CONSTITUTION:Truss reinforcing bars are arranged between PC plates 2 which have respective end parts on the long flank side are displaced from each other and which are arranged facing each other, and the upper end side and the lower end side of the truss reinforcing bar 3 are embedded in the two PC plates 2 for intercoupling the plates. The truss reinforcing bar 3 is formed in the shape of a triangle by using one upper end bar 3a arranged at the apex of an isosceles triangle, two lower end bars 3b, and corrugated bars 3c. Thus, the effective thickness of a reinforced concrete wall can be increased.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a precast concrete plate for a reinforced concrete wall.

[0002]

2. Description of the Related Art Conventionally, in the case of constructing a reinforced concrete wall, the wall reinforcements are laid out to form a formwork, and concrete is placed in the formwork, or the outer formwork is made of a precast concrete plate. It was constructed by placing concrete on the formwork formed in.

[0003]

However, since all the reinforced concrete walls as described above are constructed by forming a formwork, it takes time and labor in recent years where skilled engineers such as formworkers are lacking. However, the workability could not be improved. The present invention has been made in view of these problems, and an object thereof is to provide a precast concrete plate for reinforced concrete that can be constructed without a formwork.

[0004]

A precast concrete plate for a reinforced concrete wall according to the present invention for achieving the above-mentioned object is a truss bar between precast concrete plates arranged so as to face each other with their long side edges shifted from each other. Is arranged, and the upper end portion and the lower end portion of the truss reinforcement are embedded in the precast concrete plate, and these are connected to each other.

[0005]

[Operation] Thus, the precast concrete plates for the reinforced concrete wall are formed by connecting the precast concrete plates with the side edges on the long sides displaced from each other so that the precast concrete plates for the reinforced concrete wall also serve as a formwork. Therefore, it is possible to build a reinforced concrete wall without making a new formwork. In addition, when constructing a reinforced concrete wall by joining this precast concrete plate for reinforced concrete walls in the lateral direction, the joining positions of the precast concrete plates can be formed at mutually offset positions, so the effective thickness of the reinforced concrete wall should be large. You can

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a transverse sectional view of a reinforced concrete wall of the present invention, FIG. 2 is a longitudinal sectional view thereof, FIG. 3 is a perspective view thereof, and FIGS.
[Fig. 3] is a cross-sectional view showing a state of use.

A precast concrete plate 1 for a reinforced concrete wall has truss bars 3 between precast concrete plates 2 which are arranged so as to face each other with both ends on the long side offset from each other.
Are arranged, and the upper end side and the lower end side of the truss reinforcement 3 are embedded in these two precast concrete plates 2 to connect them.

Since these precast concrete plates 2 are connected with their both ends displaced from each other, when the reinforced concrete wall A is constructed by continuously joining them in the lateral direction as shown in FIG. The joining positions are displaced from each other to arrange the connecting bars 4, and the post-cast concrete 5 is placed. As a result, the effective thickness of the reinforced concrete wall A can be a thickness (a + b) obtained by adding one of the precast concrete parts b to the post-cast concrete part a. In addition, both ends of the reinforced concrete wall A, that is, the pillar B
The precast concrete plate 1 for a reinforced concrete wall, in which only the other end of the precast concrete plate 2 is deviated, is used as a joint portion with.

The truss reinforcement 3 has one upper end reinforcement 3a arranged at each vertex of an isosceles triangle and two lower end reinforcements 3b.
It is formed into a triangular prism shape by the corrugated lattice reinforcements 3c arranged between the upper end reinforcements and the lower end reinforcements 3a and 3b, and three reinforcements are arranged at appropriate intervals along the longitudinal direction of the precast concrete plate 2. There is.

The truss muscle 3 is not limited to the triangular prism shape as described above, and one upper end muscle 3a and one lower end muscle 3b arranged in parallel as shown in FIG. It may be formed by connecting them.

FIG. 6 shows a case where the corner portion of the reinforced concrete wall A is constructed by using the precast concrete plate 1 for reinforced concrete wall, and the joint bars are arranged so that the connecting bars 4 projecting from both sides are superposed on each other. And then build.

FIG. 7 shows a case where the reinforced concrete wall A is constructed in a T shape. The outer wall 6 is constructed by the precast concrete plate 1 for reinforced concrete wall in which both ends of the precast concrete plate 2 are offset from each other, and the partition wall 7 is formed. The precast concrete plate 2 is constructed by the precast concrete plate 1 for a reinforced concrete wall in which only the other end of the precast concrete plate 2 is deviated, and a connecting bar 4 is arranged in a T-shape at its joint.

Next, a method of manufacturing the precast concrete plate 1 for a reinforced concrete wall and its use will be described. First, vertical and horizontal reinforcing bars are arranged in a lattice on a formwork, and truss reinforcing bars 3 are arranged on these vertical and horizontal reinforcing bars along the longitudinal direction at appropriate intervals to pour concrete. The precast concrete board 2 in which the streaks 3 project in an inverted V shape is formed.

Next, this precast concrete board 2
Are superposed on the other precast concrete plate 2 in a form in which the reinforcing bars are arranged, with the upper end bars 3a of the truss reinforcing bars 3 on the lower side and both ends on the long side shifted. Then, by casting concrete in the mold, the precast concrete plate 1 for reinforced concrete walls in which the precast concrete plates 2 are displaced from each other is formed.

Then, the precast concrete plate 1 for reinforced concrete wall is continuously built between the columns B, and the post-cast concrete 5 is placed between the precast concrete plates 2 to construct the reinforced concrete wall A.

[0016]

EFFECTS OF THE INVENTION By using the precast concrete plate for a reinforced concrete wall also as a formwork, it is possible to construct a reinforced concrete wall without making a new formwork, so that workability and economical efficiency can be improved. .

By forming the precast concrete plate for a reinforced concrete wall by displacing the ends of the precast concrete plate with each other, the joining positions of the reinforced concrete walls are displaced with each other when the reinforced concrete wall is constructed by connecting these in the lateral direction. Since it can be arranged at a position, the effective thickness of the reinforced concrete wall can be increased.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a precast concrete plate for a reinforced concrete wall.

FIG. 2 is a vertical sectional view of a precast concrete plate for a reinforced concrete wall.

FIG. 3 is a perspective view of a precast concrete plate for a reinforced concrete wall.

FIG. 4 is a perspective view of a truss muscle.

FIG. 5 is a cross-sectional view of a precast concrete plate for a reinforced concrete wall in use.

FIG. 6 is a cross-sectional view of a corner portion of a reinforced concrete wall using a precast concrete plate for a reinforced concrete wall.

FIG. 7 is a cross-sectional view of a T-shaped reinforced concrete wall using a precast concrete plate for a reinforced concrete wall.

[Explanation of symbols]

 A Reinforced concrete wall B Column 1 Precast concrete plate for reinforced concrete wall 2 Precast concrete plate 3 Truss

Claims (1)

[Claims] 1. A truss bar is arranged between precast concrete plates arranged so that their long side edges are offset from each other, and the upper and lower ends of the truss bar are embedded in the precast concrete plate. A precast concrete plate for reinforced concrete walls, which is characterized by connecting them together.