JPH05228917A - Concrete weir using reinforcing bar and wire gauze - Google Patents

Abstract

PURPOSE:To provide a concrete weir using a reinforcement and a wire gauze, which can be manufactured in a large quantity in a factory, in which no special craftsman is required and field mounting is also facilitated and which have sufficient strength. CONSTITUTION:In a concrete weir employing reinforcements and wire gauzes manufactured in a factory and used placed on a concrete placing field, both side sections except chevron top sections of a large number or vertical reinforcements 11 juxtaposed while forming clearances in a pile shape are welded and fixed by linear horizontal reinforcements 12 disposed in an array while forming a large number of clearances and a reinforcement supporter is shaped while wire gauzes 13 capable of preventing the outflow of concrete and having the small degree of opening are fastened onto the whole surface of one side section except the top section of the reinforcement supporter.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete weir that uses a reinforcing bar and a wire net that can be mass-produced in a factory.

[0002]

2. Description of the Related Art Buildings using concrete (SRC,
(RC) dirt floor, mats, floors, roads requiring concrete placement, parking lots, airport aprons, harbor revetments, etc.
If the casting area and volume are large, it is difficult to cast fresh concrete (unhardened concrete, sometimes simply referred to as concrete below) at once.
At the site, a weir was created to appropriately stop the flow of ready-mixed concrete, by which the place for placing concrete was partitioned, and the concrete was placed in several blocks.

[0003]

However, since the weir for pouring concrete according to the conventional example is manufactured on site, there is a problem that it is extremely troublesome and requires a specific craftsman. Also, since the weir support member is stopped mainly by binding or welding using a wire rod,
The strength is also insufficient, and when using reinforcing bars, blacksmithing is required, which requires time for manufacturing and mounting, and in some cases, the weir may be destroyed by being pushed by the concrete to be placed. The present invention has been made in view of the above circumstances, and it is possible to provide a concrete weir that can be mass-produced in a factory, does not require a special craftsman, can be easily installed in the field, and has a sufficient strength such as a reinforcing bar and a wire mesh. To aim.

[0004]

A method according to the above-mentioned object.
The concrete weir that uses the reinforcing bars and wire mesh described in the above is a concrete stopper that uses the reinforcing bars and wire mesh manufactured at the factory and placed on the concrete pouring site, and has a single mountain shape with a gap. Alongside both side portions except for the chevron tops of a large number of vertical rebars installed in parallel with each other, a reinforcing bar support is formed by welding and fixing with a horizontal transverse rebar that is installed in parallel with a large number of gaps. It consists of a wire mesh with a small opening that can prevent concrete from flowing out over the entire surface of one side except the top.

[0005]

In the concrete weir using the reinforcing bars and the wire nets according to claim 1, since the wire net having a small opening is fixed to the entire one side surface of the reinforcing bar support having one mountain side, one or more of By arranging concrete weirs using reinforcing bars and wire nets, it is possible to prevent the outflow of green concrete, so that it is possible to place concrete only in a predetermined portion. Further, since the reinforcing bar support has a chevron shape, it is easy to mount, and further, since it can be stacked,
It is easy to transport and store. Since the horizontal reinforcing bars and the wire mesh are not provided at the top of the reinforcing bar support, concrete can be poured so that only this part projects above the concrete.

[0006]

Embodiments of the present invention will now be described with reference to the accompanying drawings to provide an understanding of the present invention. Here, FIG. 1 is a perspective view of a concrete weir using a reinforcing bar and a wire mesh according to an embodiment of the present invention, and FIG. 2 is a side view thereof.

As shown in FIGS. 1 and 2, a concrete weir 10 using a reinforcing bar and a wire net according to an embodiment of the present invention is
A large number of vertical reinforcing bars 11 bent in a V shape and the vertical reinforcing bars 1
A large number of horizontal reinforcing bars 12 for joining 1 and a metal lath (including rib lath) 1 which is an example of a wire mesh attached to one surface.
3 and 3.

The vertical reinforcing bar 11 and the horizontal reinforcing bar 12 have a diameter of 4
Round bar or deformed bar of about 19 mm is used, and the vertical bar 11 is bent at an apex angle of 20 to 90 degrees and varies depending on the place of use, but h ₁ is 60 to 10
0 mm (preferably 70 mm), h ₂ is 300 to 700
mm (preferably 520 mm), h ₃ is 20 to 50 mm
(Preferably 30 mm). Further, the length l (ell) is about 3 to 5 m (preferably 4 m). The vertical reinforcing bar 11 and the horizontal reinforcing bar 12 constitute a reinforcing bar support. The metal lath 13 has an opening degree such that green concrete does not flow out, and is crimped to the horizontal reinforcing bar 12 or the vertical reinforcing bar 11 by using an appropriate number of C-rings on one inner side of the vertical reinforcing bar 11 excluding the top portion.
The metal lath 13 and the vertical reinforcing bar 11 (or the horizontal reinforcing bar 12) may be joined by welding.

The connection between the vertical reinforcing bar 11 and the horizontal reinforcing bar 12 is
Conducted by electric resistance welding, after arranging the horizontal reinforcing bars 12 in a plane shape at a predetermined interval in advance, arranging the vertical reinforcing bars 11 in a cross shape at a predetermined interval, and performing electric resistance welding from the upper portion, a portion corresponding to one side The metal lath 13 is placed on the metal lath 13 and the metal lath 13 and the vertical rebar 11 or the horizontal rebar 12 are fixed to each other, and the whole is pressed and bent by a bender at 20 to 90 degrees, and the concrete weir 10 using the rebar and the wire net as shown in FIG. Are manufactured.

Concrete weir 1 using the rebar and wire mesh
When 0 is used, the soil between the structures to be placed,
If the placing surface is wide and there is a lot of concrete to be used in slabs, roads or airport aprons, etc., first divide the placing surface into several blocks and prepare and line the concrete weir 10 using the plurality of reinforcing bars and wire mesh. , This divides the casting surface into an appropriate number of blocks. In this case, since the concrete weir 10 using the reinforcing bars and the wire mesh has a mountain shape, the length can be adjusted by partially wrapping. In order to maintain the strength or prevent cracking of the concrete, reinforcing bars are laid at the top and bottom of the concrete placing part. Since the concrete weir 10 using the reinforcing bar and the wire mesh is mainly composed of the reinforcing bar and the wire mesh,
It has sufficient strength and, in use, as shown in FIG. 2, the flow of green concrete can be stopped by the metal lath 13. When placing concrete in the next block, since no metal lath is provided on the other side of the concrete weir 10 using the reinforcing bars and the wire mesh,
Fresh concrete flows into the concrete weir 10 using the rebar and the wire net as shown by the arrow in the figure, and the whole is embedded in the concrete, and the concrete acts to further reinforce the concrete. Although the metal lath is used as the wire mesh in the above-described embodiments, the present invention is also applicable to other welded wire mesh, woven mesh, and the like. Further, in FIG. 2, the metal lath is attached to the inner surface on one side of the reinforcing bar support composed of the vertical reinforcing bar and the horizontal reinforcing bar, but it may be fixed to the outside of the supporting reinforcing bar. In this case, a concrete weir that uses the reinforcing bar and the wire mesh is used so that the inside of the reinforcing bar support becomes a space. Furthermore, the wire mesh can be fixed after the reinforcing bar support composed of the vertical reinforcing bars and the horizontal reinforcing bars is bent. In FIG. 2, reference numeral 14 is a finished concrete, and 15 and 16 are a reinforcing bar or a reinforcing bar wire mesh.

[0011]

As is apparent from the above description, the concrete weir using the reinforcing bars and the wire nets according to claim 1 can be manufactured in a factory and can be installed only on site. This eliminates the need for highly skilled workers and saves the construction period and costs as a whole. And
Since concrete weirs using a large number of reinforcing bars and wire nets can be stacked, it is easy to store and transport, and since the joint between vertical bars and horizontal bars is a welded structure, it has sufficient strength and is durable. A concrete weir can be formed.

[Brief description of drawings]

FIG. 1 is a perspective view of a concrete dam using a reinforcing bar and a wire net according to an embodiment of the present invention.

FIG. 2 is a side view showing a usage state of a concrete weir using the reinforcing bar and the wire net.

[Explanation of symbols]

 10 Concrete Weirs Using Reinforcing Bars and Wire Mesh 11 Vertical Reinforcing Bar 12 Horizontal Reinforcing Bar 13 Metal Lath

Claims (1)

[Claims] 1. A concrete stopper using a reinforcing bar and a wire net, which is manufactured in a factory and placed on a concrete pouring site for use, and which is formed into a single mountain shape and is arranged in parallel with a gap. Both side portions of the vertical rebar except the chevron top portion are welded and fixed by linear horizontal rebars arranged side by side with a large number of gaps to form a rebar support body, and one side except the top portion of the rebar support body. A concrete weir using reinforcing bars and wire mesh, characterized in that a wire mesh with a small opening is fixed on the entire surface of the part to prevent concrete from flowing out.