JPH0449254Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a formwork device for constructing concrete slopes installed for the protection of sloped mountains.

(Prior Art) Conventionally, concrete legal frameworks have been constructed as protection works for sloped mountains and slopes. There are various methods of constructing this method, but the paper form construction method or the formwork embedding method is often used because of its good workability.

The former method, as shown in Japanese Patent Application Laid-Open No. 54-10504, uses a lightweight and disposable core-shaped paper form to cast concrete for the legal frame. The latter construction method was developed in 1973.
As shown in Publication No. 46362, a wire mesh formwork is combined with a reinforcing cage and concrete is sprayed on it.
It is to be buried.

(Problem that the invention aims to solve) The former construction method has the advantage that the formwork is lightweight, easy to construct, and has high construction accuracy, but because the formwork is made of paper, its strength is low and the reinforcement material This method not only requires a large number of blocks, but also has the problem that it is difficult to use for a frame with a large cross section. In addition, the latter method can be applied to slope frames of various sizes and cross-sections, but it is troublesome to assemble the wire mesh formwork and reinforcing bar basket, and since the formwork is wire mesh, it is difficult to form slope frames with large cross sections. In some cases, it is necessary to provide various types of reinforcement, and the wire mesh has many irregularities, resulting in poor construction accuracy and the need for a topcoat to further shape the concrete after it has been sprayed. ing.

The present invention aims to solve the problems in these later technologies and provide a formwork device that is excellent in workability and economy, has high strength, and can be installed with high precision.

(Means for Solving the Problems) Next, the configuration of the present invention will be explained with reference to the drawings corresponding to the embodiments. and a large number of vertical stripes 3 in a lattice shape,
At least at the intermediate portions of the horizontal strips 2, 2 arranged at the upper and lower portions, there are engaging portions 5, which curve horizontally, respectively.
5 are provided to form a formwork member 1, the formwork members 1 are arranged facing each other at a required interval, and the formwork members 1, 1 are constructed between the engaging portions 5, 5 of the horizontal reinforcements 2, 2. At the same time, these formwork members 1, 1 and another formwork member 1 adjacent in the longitudinal direction are connected by a connecting member 6, and their loop-shaped connecting portions 4, 4 are overlapped with each other by an anchor pin 8. It is characterized by being combined.

(Example) Hereinafter, an example of the device of the present invention will be described with reference to the drawings.

In the figure, 1 is a formwork member which is a main component of the device of the present invention, and as shown in FIG.
2 and vertical stripes 3 are arranged in a lattice pattern and bonded to each other by welding or the like at their intersections to form a rectangular plate shape as a whole. And each horizontal muscle 2,2
A loop-shaped connecting portion 4 is formed by bending the transverse reinforcement 2 at both ends. Also, the upper and lower horizontal stripes 2, 2 of the horizontal strips 2, 2 arranged vertically.
Engagement portions 5, 5, which are formed by horizontally bending the transverse stripes 2 into a semicircular arc shape, are formed at required intermediate positions.

The above-mentioned engaging portions 5 are not limited to the upper and lower portions of the horizontal stripes 2, 2, but may be provided on other horizontal strips 2, 2. The number and position of the holes are not limited to those near both ends as shown in the figure, but can be increased or decreased as necessary.

In the apparatus of the present invention, a plurality of the above-mentioned formwork members 1, 1 are assembled as shown in FIG. 1 to form an embedded formwork for a concrete method frame. That is, the two formwork members 1, 1 are erected on the ground at a required interval with the engaging portions 5 of the transverse reinforcements 2 facing each other, and are erected on the ground as shown in FIG. As shown, the connecting members 6, 6, each of which has both ends bent in an L shape and provided with engaging pieces 7, 7 for connecting to the engaging parts 5, are spanned and connected between the opposing engaging parts 5, 5. In addition, connecting parts 4, 4, which are mutually deflected from other formwork members 1, are inserted into each of the two facing formwork members 1, 1, as shown in FIGS. 6 and 7, and overlapped. At the same time, the anchor material 8 is inserted into the overlapping loop portions to connect them, and the anchor material 8 is driven into the ground and fixed.

As shown in Fig. 2, for the intersection of the legal cases, the combination of each formwork member 1, 1 is connected in a cross shape such as at right angles via each connecting part 4, 4. Can be easily installed.

Each formwork member 1 assembled and arranged as described above,
Shaft reinforcements 9, 9 are appropriately arranged between the formwork members 1,
Concrete 10 such as concrete or mortar is sprayed (placed) between 1 and 1, and concrete 10 is also sprayed from the outside of formwork members 1, 1 to formwork members 1, 1 and shaft reinforcements 9, etc. is buried in concrete 10.

In addition, in the present invention, anchors can be installed at intersections of legal frames and other locations as necessary. Moreover, if deformed wire rods are used for the horizontal reinforcements 2 and vertical reinforcements 3 of the formwork member 1, the adhesion of concrete will increase, and the strength will be further increased.

(Effects of the invention) As explained above, the formwork device of the present invention connects a large number of horizontal bars and a large number of vertical bars, each of which has a loop-shaped connecting portion at both ends, in a lattice shape, and arranges them at the upper and lower parts. At the intermediate portions of the horizontal reinforcements, engaging portions that curve horizontally are provided to form formwork members, and the formwork members are arranged facing each other at a required interval, and the formwork members are engaged with the horizontal reinforcements. These formwork members and other formwork members adjacent in the longitudinal direction are connected by an anchor pin by overlapping their loop-shaped connecting parts. The feature is that the formwork members, which are the constituent materials of the formwork, have a large number of horizontal and vertical reinforcements connected together in a lattice shape, so they have excellent strength and rigidity, and are suitable for use in large cross-section slope frames. The construction accuracy is good without using batten or other reinforcing materials, and there is little unevenness on the surface of the poured concrete, and even when topcoating for shaping, it is easy to use because of the parallel horizontal reinforcement. Easy and accurate fitting. Furthermore, since each formwork is connected to each other by connecting the loop-shaped parts and connecting the connecting material to the engaging part of the horizontal reinforcement, it is possible to easily and efficiently create a strong formwork. There is no need for troublesome work such as removing batten materials and reinforcing materials, and since the connection is made through a loop-shaped part, it is possible to move freely through that part, and therefore the legal frame can be easily fixed. The formwork at the intersection can be freely formed, and it has excellent adaptability to the irregularities of the ground, and it has many excellent effects, such as being able to adapt to various conditions such as size using the same material. It is something to play.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an embodiment of the device of the present invention;
Fig. 2 is a plan view showing another embodiment; Fig. 3 is a longitudinal cross-sectional view showing a slope constructed by the device of the present invention; Fig. 4 is a slope view showing formwork members in the device of the present invention; The figure is a perspective view showing the state of connection by the connecting member, FIG. 6 is a front view showing the state of connection of the loop-shaped portion, and FIG. 7 is a plan view of the same. 1...Formwork member, 2...Horizontal strip, 3...Vertical strip, 4
... loop-shaped part, 5 ... engagement part, 6 ... connection material,
8... Anchor material, 10... Concrete.

Claims (1)

[Scope of utility model registration request] A large number of horizontal stripes having loop-shaped connecting portions formed at both ends and a large number of vertical stripes are connected in a lattice shape, and the intermediate portions of the horizontal stripes arranged at the upper and lower portions each have an engaging portion that curves in the horizontal direction. forming a formwork member, and arranging the formwork members facing each other at a required interval;
These formwork members are connected by connecting members installed between the engaging parts of the horizontal reinforcements, and the loop-shaped connecting parts of these formwork members and other formwork members adjacent in the longitudinal direction are overlapped with each other. A formwork device for a concrete method, characterized in that it is connected by anchor pins.