JPS644920Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a reinforcement unit used in a concrete structure constructed for protection of natural ground.

BACKGROUND ART Conventionally, in order to prevent earth and sand from collapsing on slopes, etc., a grid-shaped reinforced concrete structure A is installed on a ground B, for example, as shown in FIG. Incidentally, in order to construct such a structure, precast concrete members are often arranged and assembled on a slope or the like, or concrete is poured on site. In the above case, the precast concrete member has the disadvantage that it is heavy, difficult to construct especially on a steeply sloped surface, and construction cost is high. In addition, the latter method has drawbacks such as very poor workability, long construction time, and high costs because the reinforcing bars and formwork are installed on a steep slope.

This idea was made to solve the above-mentioned drawbacks of the conventional method, and it can simplify the on-site work when constructing structures using cast-in-place concrete, shorten the construction period, and improve economic efficiency. , which aims to provide a reinforcement unit.

Embodiments of the present invention will be described below with reference to the drawings.

1 to 3 show embodiments of the reinforcing unit of the present invention having different forms. First, the reinforcing unit of the embodiment shown in Fig. 1 will be explained. 2 indicates the opposing formwork. It is a horizontal bar for connecting two pieces, and engaging parts 2a, 2a formed by bending the bar inward in a U-shape are provided at both ends of the bar. A locking portion 2b formed by further bending in the vertical direction is provided at the inner end, that is, the end of the bent reinforcement. A wedge 7 for connecting and fixing the formwork 5 is inserted into the engagement part 2a as described later, and the engagement part 2b is in contact with the inner surface of the formwork 5 and serves to maintain the gap between the forms. It is something to do.

The horizontal reinforcements 2 are arranged in parallel at a required interval, and a plurality of main reinforcements 1, 1 are arranged in parallel at intervals in a direction perpendicular to the horizontal reinforcements 2, 2 arranged. , their horizontal lines 2,
2 and the main reinforcing bars 1, 1 are connected to each other at their intersections by welding or the like. Further, if necessary, auxiliary reinforcements 3 are further installed between the main reinforcements 1 and 1. The reinforcement unit shown in the embodiment of FIG. 1 is called a flat reinforcement unit.

The embodiment shown in Fig. 2 is called an L-shaped unitro because the entire structure is L-shaped, and the main bars 1, 1 are connected in parallel at a required interval by a horizontal bar 2, and the two sets are connected to each other by a horizontal bar 2. The cross sections of the main reinforcements 1 are arranged in a letter shape and connected to each other. The embodiment shown in Fig. 3 is T-shaped, so it is called a T-shaped reinforcement unit.Similar to B, the main reinforcements 1, 1 are connected in parallel at a required interval by a horizontal reinforcement 2, and two sets of these are connected. The main reinforcements 1 are arranged in a T-shape and the intersections of the main reinforcements 1 are connected to each other. Both ends of each horizontal reinforcement 2 are made to protrude sideways to the sides of the main reinforcement 1, and each terminal part has an engaging part 2a formed by bending inward in a U-shape. A locking part 2a formed by further bending the inner end of the engaging part 2a in the vertical direction is provided.

In addition, the embodiments of the reinforcement arrangement unit described above are as follows:
Although there are three types (B and C), the number of types may be increased, for example by configuring a cruciate muscle unit formed in a cross shape in the same manner as described above. However, from the viewpoint of productivity and workability, it is preferable to use three or four types of reinforcement units.

FIG. 3 shows the reinforcement unit toy of each of the above embodiments,
A plan view showing the composition of the reinforcing steel structure and the assembly of formworks 7, 7 in a lattice pattern using B and C, No. 4
The figure shows a cross-sectional view along Figure 3.
The composition of the reinforcing steel structure and the joining of the formwork are performed simultaneously.

The formwork is made of a lightweight material such as reinforced corrugated paper, and the side formwork 4 is formed to fit the outer surface of the structure.
In this case, a box-shaped core form 5 is used, which is formed to fit the inner surface of the structure in the form of a lattice. At required locations in each formwork 4, 5, through holes 6 are provided through which the engaging portions 2a provided in the transverse reinforcements 2 of the respective reinforcing unit units (b) and (c) described above are inserted. Since the reinforcing units (B), (C) are usually arranged vertically at a required interval, the through holes 6 are also provided correspondingly to the upper and lower sides.

Next, with reference to FIGS. 3 and 4, an example of construction in which a formwork is assembled using each of the reinforcement units described above will be described. The assembly may start from the corner a, the T-shaped part b, or the cross-shaped part c of the structure, but an example in which the assembly is started from the corner a will be described here.

First, while arranging the side formwork 4 in an L-shape,
A core formwork 5 is arranged inside it, and both formworks 4,
Between 5 and 5, L-shaped strips 4 and 5 are arranged vertically at required intervals, and each engaging portion 2a is connected to each formwork 4,
The wedges 7 are inserted into the through holes 6 provided in the molds 4 and 5, respectively, and the wedges 7 are driven into the holes 2c of the engaging portions 2a of the horizontal strips protruding from one side of the forms 4 and 5 to the other side.
In this way, the formworks 4 and 5 will be clamped by the locking portions 2b of the horizontal bars and the wedges 7, and the L-shaped bar units and the formworks 4 and 5 will be integrally connected. .
Next, connect the T-shaped bar units HA, C to the ends of the L-shaped bar units HA, B, connect them to the formworks 4, 5 in the same way, and connect the T-shaped bar units HA, C to the ends of the L-shaped bar units HA, B. At the end, flat bar unit toys and A are connected to formwork 5. The T-bar unit and flat bar unit connected around the core form 5 are connected to other core form frames 5-1 and 5- which are connected to the sides of the original core form 5. 2 and connect them with the T-shaped muscle unita and flat muscle unitoy, respectively, and grow these in sequence. In this case, the reinforcing bar structure can be made strong by overlapping the ends of the reinforcing units (B), (C), and connecting them by means such as welding.

In this way, by using the reinforcing unit of the invention, the formwork can be interconnected and grown, so that the composition of the required reinforcing structure and the installation of the formwork for pouring concrete can be done simultaneously. It will be constructed. And reinforcement unit toy,
The required locations (b) and (c) are fixed to the ground B by anchors 9. After the above-mentioned construction, concrete is poured between each formwork 4 and 5 from above. After the concrete hardens, the wedge 7 is pulled out and the formworks 4 and 5 are removed.
If this is removed, the grid-like concrete structure A facility will be completed on the ground.

As explained above, the reinforcement unit of the present invention has an engaging part formed by bending inward in a U-shape at both ends, and an inner end of the engaging part further vertically bent. A plurality of horizontal reinforcements each having a locking portion formed by bending are arranged at intervals, and main reinforcements arranged in parallel at intervals are orthogonal to the horizontal reinforcements, so that the horizontal reinforcements and the main reinforcements intersect with each other. Because it has a structure in which the parts are connected, it is possible to construct concrete structures to reinforce the ground such as slopes, as in the case of conventional methods.
By using a reinforcement unit, it is possible to assemble the formwork and assemble the reinforcing steel structure at the same time, without having to go through the trouble of assembling the formwork and arranging the reinforcement separately. It has many excellent effects, such as labor savings, improved work safety, and the ability to significantly reduce construction costs.

[Brief explanation of drawings]

Figure 1 is a slope view showing a reinforced concrete structure installed on the ground, Figure 2 is a slope view showing one embodiment of the reinforcing unit of the present invention, and Figures 3 and 4 are different views. FIG. 5 is a plan view showing a state in which each reinforcing unit and each formwork are connected, and FIG. 6 is a sectional view taken along the line shown in FIG. 5. A... Concrete structure, B... Ground, 1...
...Main reinforcement, 2...Horizontal reinforcement, 2a...Engagement part, 2b...
Locking part, A... Flat bar unit, B... L-shaped bar unit, C... T-bar unit, 4... Side formwork, 5
... core formwork, 7 ... wedge.

Claims (1)

[Scope of utility model registration request] A transverse strip that is provided at both ends with an engaging part formed by bending inward in a U-shape, and a locking part formed by further bending the inner end of this engaging part in a vertical direction. Arrange multiple lines at intervals, and place them on the horizontal lines,
A reinforcement arrangement unit for earth reinforcement structures, characterized in that main reinforcements arranged in parallel at intervals are orthogonally crossed, and the transverse reinforcements and the main reinforcements are connected to each other at their intersections.