JPH0637794B2 - Building wall structure and construction method - Google Patents

Description

TECHNICAL FIELD The present invention relates to a wall structure of a building and a construction method thereof.

(Prior Art) Conventionally, in the case of constructing a wall of a building, a formwork was formed, and main reinforcements and horizontal reinforcements were arranged in the formwork, and then cast-in-place concrete was placed.

Also, when constructing using a precast concrete plate with embedded truss reinforcement, build the precast concrete plate with the truss reinforcement inside, form the inner formwork inside it, and cast the cast-in-place concrete into the inner formwork. Was set up and built.

(Problems to be solved by the invention) However, in any of the above-mentioned walls, after forming a mold in any case, it was constructed by pouring cast-in-place concrete into the mold, which took time and labor, In recent years, where there is a shortage of skilled engineers such as formworkers, this was a serious problem.

The present invention has been made in view of these problems, and an object thereof is to provide a wall structure that can be constructed without the need for a formwork and a construction method therefor.

(Means for Achieving the Object) The wall structure of the present invention for achieving the above-mentioned object has a triangular prismatic truss muscle in which one upper end muscle and two lower end muscles are connected by a corrugated lattice muscle. It is characterized in that it is sandwiched between two concrete plates, the top end side and the lower end side of the truss reinforcement are embedded in the concrete plates to form a precast concrete plate, and a cast-in-place concrete is cast between the concrete plates. In addition, the construction method of the wall structure, the upper truss and one of the two lower trusses are connected by two corrugated lattice muscles triangular prism-shaped truss reinforcement is sandwiched between two concrete plates, The top end side and the lower end side of the truss reinforcement are embedded in a concrete plate to form a precast concrete plate, and the precast concrete plate is installed between the column reinforcements of each column, and then the precast concrete It is to configure, characterized in that constructed by Da設 the poured concrete to concrete plates of over preparative plate.

(Operation) Thus, according to the above configuration, the precast concrete plate is laid between the reinforcing bars of the column, and the cast-in-place concrete is placed between the two concrete plates to form a wall without forming a formwork. Can be built.

(Example) Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a sectional view showing a wall structure of a building of the present invention and a construction method thereof.

In the wall structure A, a truss bar 2 is sandwiched between two concrete plates 1 facing each other at an appropriate interval, and the upper end side and the lower end side of the truss bar 2 are embedded in these two concrete plates 1 to make a precast concrete plate 3 Is formed, and the concrete 4a is cast between the concrete plates 1 of the precast concrete plate 3, and the finishing material is applied to the inner and outer surfaces of the concrete 4a.

The precast concrete plate 1 is formed with vertical ribs 1a and horizontal ribs 1b having an appropriate thickness and having a back muscle in a lattice pattern.

The truss muscle 2 has one upper end muscle 2a arranged at each apex of an isosceles triangle, two lower end muscles 2b, and a wave-shaped lattice formed between the upper end muscles and the lower end muscles 2a, 2b. Muscle 2
and c are formed into a triangular prism shape.

The truss bars 2 are arranged at appropriate intervals along the longitudinal direction of the concrete board 1, and the upper end bars and the lower end bars 2a, 2b are embedded in the concrete board 1, respectively.

When the walls are joined at a right angle, as shown in FIG. 2, the concrete plate 1 on the inner side of the precast concrete plate 3 is formed to be short, and the joining portion is formed by overlapping the connecting bars 5a protruding from both sides. To join.

When joining walls in a T-shape, as shown in FIG. 3, the concrete plate 1 inside the precast concrete plates 3 connected in parallel is formed to be short, and the joint portion has a T-shaped connecting bar 5a. It is to arrange and join to.

When joining with the slab 6, as shown in FIG.
The precast concrete plate 3 is brought into contact with the upper surface and the lower surface of the slab 6, and the joints are arranged and connected to both the precast concrete plates 3 with the slab 6 sandwiched between them.

When joining the beam 7, as shown in FIG.
The upper end of the concrete plate 1 is inserted into the formwork, and the connecting bar 7a is arranged and joined to the joint.

Further, when the window m and the entrance opening n are provided,
It is provided in advance as shown in FIGS.

In this case, the concrete plates 1 on the inner side are each formed to be short.

Next, a method of constructing the wall structure A will be described.

[Manufacture of Precast Concrete Plate] First, between the two concrete plates 1, between one upper end bar 2a, two lower end bars 2b, and these upper end bars and lower end bars 2a, 2b. Waveform latticed muscle 2c
To form a precast concrete plate 3 sandwiching the truss bars 2 formed in a triangular prism shape (see FIGS. 8 and 9).
Figure).

This is a vertical frame 1a and horizontal line 1
When b is arranged in a lattice pattern and concrete is placed on these vertical and horizontal bars 1a and 1b by placing truss bars 2 in the longitudinal direction along the longitudinal direction at appropriate intervals, two truss reinforcing bars 2 are placed on the concrete plate 1. The lower end bar 2b of the truss is embedded,
Are formed so as to project in an inverted V shape.

When this concrete board 1 is formed, the vertical and horizontal stripes 1a,
1b is arranged in a lattice shape, and the concrete plate 1 is placed in the formwork.
Are piled up with the upper end bar 2a of the truss rebar 2 on the lower side, and by placing concrete in the formwork, the truss rebar 2 is placed between these two concrete plates 1.
A precast concrete board 3 sandwiched between is formed.

[Construction of precast concrete board] Precast concrete board 3 formed as described above
Is installed between the respective column muscles 5, and the connecting muscles 5a are formed between the column muscles 5 and the back muscles (FIG. 10).

This precast concrete plate 3 is to be erected with the truss rebar 2 on the vertical side, with the end inserted in the form 5b of the pillar M. As shown in the drawing, the connecting bar 5a is arranged and connected to the connecting portion.

[Placement of concrete] As described above, the precast concrete plate 3 is attached to each pillar M.
After building in between, the cast-in-place concrete 4 is poured between the precast concrete boards 3.

This casting is also performed on the pillar M, the slab 6 and the beam 7 at the same time, and after the cast-in-place concrete 4 is hardened,
A wall is formed by removing the mold 5b of the pillar M from the mold.

(Effects of the Invention) The present invention has the following effects due to the above configuration.

By placing cast-in-place concrete between the concrete plates in the precast concrete plate,
Since the wall structure can be constructed, the wall structure excellent in workability can be constructed.

Since the wall can be formed without the need for a mold, it is possible to reduce the construction period and the construction cost.

[Brief description of drawings]

FIG. 1 is a sectional view of a wall structure of the present invention, FIG. 2 is a sectional view showing a state where walls are joined at a right angle, FIG. 3 is a sectional view showing a state in which they are connected in a T shape, and FIG. Fig. 5 is a sectional view showing a state of being joined to the beam; Fig. 5 is a sectional view showing a state of being joined to the beam; Fig. 8 is a front view of the same state, Fig. 8 is a longitudinal sectional view of the precast concrete plate, Fig. 9 is a transverse sectional view of the same, and Fig. 10 is a cross section of the precast concrete plate with cast-in-place concrete. It is a figure. In the figure, A: wall structure 1: concrete plate 2: truss reinforcement, 2a: upper end reinforcement 2b: lower end reinforcement 2c lattice reinforcement 3: precast concrete plate.

Claims (2)

[Claims] 1. A triangular prism-shaped truss reinforcement in which one upper end reinforcement and two lower end reinforcements are connected by a corrugated lattice reinforcement is sandwiched between two concrete plates, and the top end side of the truss reinforcement and the concrete plate are A wall structure for a building, wherein a lower end side is buried to form a precast concrete plate, and cast-in-place concrete is cast between the concrete plates. 2. A triangular prism-shaped truss reinforcement in which one upper end reinforcement and two lower end reinforcements are connected by a corrugated lattice reinforcement is sandwiched between two concrete plates, and the top end side of the truss reinforcement and the concrete plate are It is characterized in that the lower end side is buried to form a precast concrete plate, the precast concrete plate is installed between the column bars of each column, and then a cast-in-place concrete is placed between the concrete plates of the precast concrete plate to construct it. Construction method of wall structure.