JPH0480467A - Reinforced concrete pouring method - Google Patents

Abstract

PURPOSE:To improve the working efficiency by bridging horizontal reinforcing bars at fixed intervals, to a plumb placing cross-sectional area in a form, to fit a bag body on, and by expanding the bag body to block the construction- jointing surface and to remove the bag body after concrete is placed. CONSTITUTION:Over a plumb construction-jointing surface M from a beam form (m) to a wall form (n), at fixed intervals, reinforcing bars 1 are horizontally bridged. After that, inside the reinforcing bars 1, a plurality of bag bodies 4 are vertically arranged, and are fitted with a number wires or the like, and from an injection hole 4a, air is fed, and the bag bodies 4 are expanded, and the contruction-joint surface M is blocked. After concrete is placed in a section N to be placed, the bag bodies 4 are removed, and after that, in the same manner, the concrete is construction-jointed. As a result, the outflow of the concrete to an adjacent section is prevented from being generated, and the efficiency of work can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a reinforced concrete pouring method.

(Conventional technology) In the case of reinforced concrete buildings, the scale, shape,
Based on the process and pouring capacity, the building is divided horizontally and vertically to form concrete pouring zones, and concrete is successively poured into these concrete pouring zones to complete the frame.

These concrete pouring zones are usually formed by installing laths on the reinforcing bars on the pour joint surface, and these laths stop the concrete placed in each concrete pouring zone.

(Problem to be solved by the invention) However, when the concrete pouring section is formed with laths in this way, it is very difficult to attach the laths to the reinforcing bars that have already been assembled in the formwork, and the work efficiency is low. Moreover, the concrete poured in the concrete pouring zone would flow out from the sides of the beam formwork, or from the bottom of the beam formwork into other adjacent concrete pouring zones, making it impossible to completely stop the concrete. There was a problem.

The present invention was made in view of the above-mentioned problems, and its purpose is to completely stop the concrete poured in the concrete pouring area and to prevent the concrete from pouring from the pouring surface to other adjacent concrete pouring. The purpose of the present invention is to provide a pouring method for reinforced concrete that does not flow into the compartment.

(Means for Achieving the Object) In order to achieve the above-mentioned objects, the reinforced concrete pouring method of the present invention spans reinforcing bars on the vertical pouring surface of concrete in a formwork, and A bag is installed inside the bag, and the bag is expanded to close the vertical pouring surface to form a concrete pouring section, concrete is poured into the concrete pouring section, and the concrete is hardened. The present invention is characterized in that the bag is later removed and new concrete is poured into another adjacent concrete pouring section.

(Function) According to the reinforced concrete pouring method as described above, reinforcing bars are laid across the vertical pouring surface of the concrete in the formwork, and a bag is installed inside the reinforcing bars. A concrete pouring zone is formed by expanding the bag and closing the vertical pouring surface, and when concrete is poured into the concrete pouring zone, the concrete is completely stopped by the expanded bag. Concrete does not flow into other adjacent concrete pouring areas.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings.

FIGS. 1 to 3 are cross-sectional views showing the reinforcing concrete pouring method of the present invention on the vertical pouring surface of the beam formwork to the wall formwork.

[Stretching the reinforcing bars] First, the reinforcing bars 1 are spanned from the beam form m to the vertical splicing surface M of the wall form n.

This reinforcing bar 1 extends between the stirrup bar 2a of the beam reinforcing bar 2 and the set joint 3a of the wall reinforcing bar 3 on the vertical splicing surface M, and extends 40c.
Fix with wires etc. at m intervals.

Further, the spacing between the reinforcing bars 1 is not limited to 40c+n, and welding can also be used as a fixing method.

[Formation of concrete pouring section 1 As described above, after the reinforcing bars 1 are spanned from the beam form m to the vertical pouring surface M of the wall form n, the bag body 4 is installed inside the reinforcing bars 1.

In this installation, the bag body 4 formed in a long shape is installed with a slight interval in the short side direction, and the upper and lower ends are connected to the stirrup bars 2a of the beam reinforcing bars 2 and the wall reinforcing bars 3 using grid lines, etc. It is fixed to the horizontal strip 3b etc.

Then, the bag body 4 installed on the vertical splicing surface M in this way
When the air injection hole 4a at the upper end is filled with air, the bag body 4 expands and the main reinforcement 2b of the beam reinforcement 2 and the horizontal reinforcement 3 of the wall reinforcement 3 are filled.
By coming into close contact with each other so as to cover b, the vertical pouring surface M is closed and a concrete pouring section N is formed.

Next, concrete is poured into the concrete pouring section N formed by the bag body 4.

In this case, since the vertical pouring surface M is completely closed by the bag body 4, the concrete is completely stopped and does not flow out to the side of the other adjacent concrete pouring section Nl.

[Removal of the bag body] Next, after the concrete poured in the concrete pouring section N has hardened, the air in the bag body 4 is removed and the reinforcing bar 1 is removed.
Remove from. At this time, since the bag body 4 is made of rubber, it is difficult for concrete to adhere to it, but if there is a possibility that concrete will adhere to it, apply a mold release agent to one side of the bag body in advance.

After this bag body 4 is removed from the vertical pouring surface M, new concrete is placed in another adjacent concrete pouring section N1.

(Effects of the Invention) The present invention has the following effects by having the above configuration.

■ Reinforcement bars are laid across the vertical pour joint surface of concrete in the formwork, a bag is installed inside the reinforcing bars, and the bag is inflated to close the vertical pour joint surface and create a concrete pouring section. By forming the container and placing concrete in the concrete pouring section, the concrete is completely stopped by the bag body, so that the concrete does not flow out into other adjacent concrete pouring sections.

(2) By forming the concrete pouring section with the bag, the concrete pouring zone can be easily formed, and thus work efficiency can be improved.

[Brief explanation of the drawing]

1 to 3 are cross-sectional views showing the reinforced concrete pouring method of the present invention, FIG. 4 is a plan view of FIG. 2, and FIG. 5 is a partially omitted perspective view. In the figure, M: Vertical pouring surface N: Concrete pouring section N1: Other concrete pouring section 1: Reinforcement bar 4: Bag body. Figure 4 Figure 5 Figure 3

Claims (1)

[Claims] Reinforcing bars are laid over the vertical pouring joint surface of concrete in the formwork, a bag is installed inside the reinforcing bars, and the bag is expanded to close the vertical pouring joint surface to open the concrete pouring section. concrete is poured into the concrete pouring section, and after the concrete has hardened, the bag is removed and new concrete is poured into another adjacent concrete pouring section. Reinforced concrete pouring method.