JPH06185147A - Wall concrete placing method - Google Patents

Abstract

PURPOSE:To fill a space narrow in horizontal direction with concrete to every corner through utilization of the side walls by placing wall concrete in the space, which is partitioned by partitioning plates, in such a way as at one time till the top of the wall concrete form. CONSTITUTION:A wall concrete form A is formed from form blocks 1 which are set stacked, and an upper and a lower partitioning plates B partitioning the internal space of the wall concrete form A into a plurality of compartments are installed alongside vertical bars 2 arranged at the joint of the form blocks 1, 1 stretching in the horizontal direction. The partitioning plates B, vertical bars 2. and crosswise bars 3 inserted through the plates B are tied by gauge wires. When wall concrete C is to be placed in the form A, first the concrete C is placed till the slab bottom or beam bottom, and then till over the wall form A space by space so that the periphery of the building is surrounded, and thereby the concrete placing works are completed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for placing wall concrete.

[0002]

2. Description of the Related Art Generally, a method for placing wall concrete is
As a general rule, so-called cast-in-place, in which wall concrete is placed inside the wall formwork at 1/2 to 1/3 of the floor height, while going around the building. Therefore, in order to drive the wall concrete for the floor height, the building had to be turned around twice or more, and the workability was poor. In particular, in the case of a masonry wall, the wall formwork is constructed by stacking formwork blocks, and each formwork block has a pair of face shells located at predetermined intervals and both face shells. Since it is composed of a web that joins the concrete, the web tends to obstruct the flow of concrete in the horizontal direction, and the lateral pressure of the concrete becomes weaker as it goes laterally from immediately below the concrete pouring position. As a result, there was a case where a hollow part of concrete was partially generated and a cold joint was generated due to the hollow part.

[0003]

SUMMARY OF THE INVENTION The present invention has been made with the above points in mind, and the purpose of the present invention is to fill all the corners of a wall formwork with concrete to obtain a high quality wall. The purpose of the present invention is to provide a method for placing wall concrete that has excellent workability and can be constructed.

[0004]

In order to achieve the above object, according to the present invention, the inner space of the wall formwork is divided into a plurality of partitions by vertical partition plates capable of transmitting shearing force to the wall concrete. Wall concrete is placed up to the top of the wall formwork in each of the created spaces. The present invention can be applied to a wall made of reinforced concrete using a temporary frame such as plywood as a wall form, but is particularly suitable for a masonry wall using a form block as a wall form. .

[0005]

According to the above construction, since the wall concrete is placed up to the upper end of the wall formwork at one time in the space narrowed in the horizontal direction divided by the partition plate, the lateral pressure of the concrete is effectively used, Concrete will be filled into every corner of the narrow space. Then, concrete is placed up to the upper end of the wall formwork in each of the divided spaces, and by placing a round around the building, the placing work of the wall concrete up to the upper end of the wall formwork is completed.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 show an embodiment of the present invention. In the figure, A is a wall form, which is constructed by stacking form blocks 1. The mold block 1 is manufactured by vacuum forming of high-strength concrete or the like, and a pair of face shells 1a and 1b located at a predetermined interval and the face shell 1 that joins both face shells 1a and 1b.
A plurality of webs 1c and 1d whose vertical dimension is shorter than a and 1b
It consists of and. L represents the horizontal dimension of one formwork block 1. In addition to the vacuum forming of high-strength concrete, the concrete form block 1 is made by vibrating and compacting the concrete placed in the form, and immediately removing the mold. In the case of the ceramic-based mold block 1, a manufacturing method of extruding clay and firing it is adopted.

Reference numeral B is a partition plate in the vertical direction which divides the internal space of the wall form A into a plurality (in the illustrated embodiment, nine). These partition plates B are made of expanded metal so that the shearing force can be transmitted to the wall concrete C. However, if the mesh of expanded metal is too large, the wall concrete C will flow out of the mesh,
Since it does not function as a weir board, it is desirable to set the particle size to be about the same as the particle size of the coarse aggregate of concrete or slightly smaller than the particle size of the coarse aggregate.

The partition plate B may be arranged in contact with the side surface of the web 1c or 1d, but in the illustrated embodiment, it is arranged at the joint between the horizontal form block blocks 1 and 1. A partition plate B is arranged along the vertical stripes 2. The partition plate B, the vertical stripes 2, and the horizontal stripes 3 inserted through the partition board B are tied together by a number line 4.

In placing the wall concrete C on the wall form A, first, in other words, in the space defined by the partition plate B, as shown in FIG. 4, up to the upper end of the wall form A, in other words, , The wall concrete C is cast to the bottom of the slab or the bottom of the beam, and then the space of C, the space of, and the space of the wall are cast one after another up to the upper end of the wall form A for each space. The construction work of the concrete wall C up to the upper end of the wall formwork is completed by going around the building. After that, concrete is poured up to the top of the slab, but concrete may be placed up to the top of the slab in each space.

Since the concrete of the floor slab is usually placed in each span, the wall concrete is also placed in each span in accordance with this, so that B'indicated by phantom lines in FIG. A partition plate may be added at the position. Further, in this embodiment, as shown in FIG. 4, at the lower end of the wall form A, a joint mortar 5 that has fallen into the internal space of the wall form A is used.
Although the opening 6 is formed for cleaning and cleaning the wall concrete C, the opening 6 may be omitted in some cases. 7 is a floor, 8 is a foundation beam, and 9 is a split chestnut.

The partition plate B is not limited to the expanded metal as long as it can transmit the shearing force to the wall concrete C. FIG. 5 shows an example of the partition plate B. The partition plate B is a weir plate portion 10a made of a thin steel plate or the like, and a positioning device also serving as a positioning jig that is fixed to both sides by welding or caulking. Muscle 10
and b. If this partition plate B is used, since the dowel streak 10b is also used as a positioning tool, as shown in FIG.
The partition plates B can be held in a vertical posture by abutting the opposite side surfaces of c and 1d, and there is an advantage that the binding work by the numbering wire can be omitted. Although not shown, an uneven portion may be formed on the weir board portion 10a by pressing or the like to enhance the adhesive force with the wall concrete C.

The present invention is particularly effective for a masonry wall as in the above embodiment, but as shown in FIG. 7 and FIG.
The wall form A can be applied to a wall made of reinforced concrete using plywood temporary frames 11, 11. In this case, as shown in the figure, the partition plate B is composed of two members B ₁ and B ₂ each having an appropriate cross-sectional shape (for example, an L-shaped cross section).
It is desirable that the members B ₁ and B ₂ are arranged such that the horizontal bar 3 is sandwiched therebetween, and that the members are fixed to the horizontal bar 3 by binding them with a numbered wire or the like. This is because the partition plate B can be installed even after the horizontal bars 3 are arranged.

[0013]

As described above, according to the present invention, since the wall concrete is placed up to the upper end of the wall formwork at a time in the space defined by the partition plate and having a narrow width in the horizontal direction, the lateral pressure of the concrete is reduced. Is effectively used, concrete will be filled in every corner of the narrow space, by placing concrete up to the top of the wall formwork in each divided space, just by going around the building, It is possible to complete the work of placing the wall concrete up to the upper end of the wall formwork, and it is easy to construct a high-quality wall with concrete filled in every corner.

[Brief description of drawings]

FIG. 1 is a schematic plan view of a wall formwork for explaining a wall concrete placing method according to the present invention.

FIG. 2 is a vertical sectional side view of a main part.

FIG. 3 is a vertical sectional front view of a main part.

FIG. 4 is a perspective view of a main part.

FIG. 5 is a perspective view of a main part showing an example of a partition plate.

FIG. 6 is a vertical cross-sectional side view of essential parts showing a usage state of the partition plate.

FIG. 7 is a perspective view showing another embodiment of the present invention.

FIG. 8 is a plan view of a main part.

[Explanation of symbols]

A ... Wall formwork, B ... Partition board, C ... Wall concrete, 1 ...
Formwork block.

Claims (2)

[Claims] 1. An inner space of a wall formwork is partitioned into a plurality of vertical partition plates capable of transmitting shearing force to the wall concrete, and the wall concrete is cast up to the upper end of the wall formwork in each partitioned space. A method for placing wall concrete, which is characterized in that 2. The method for placing wall concrete according to claim 1, wherein the wall formwork is constructed by stacking formwork blocks.