JPS6156375B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Due to the scale and work process of reinforced concrete structures, vertical joints of concrete inevitably occur. In this case, conventionally, in order to structurally integrate the joint, a metal lath or wooden frame is attached between the horizontal reinforcing bars to create a concrete partition surface, and then concrete is poured.

In the conventional construction method, when metal lath is used as a partition material, concrete leaks from the lath openings and pollutes the work area, making it difficult to compact the concrete sufficiently.

Furthermore, when wooden partition surfaces are used, the space between the many horizontal reinforcing bars is sealed, resulting in a complicated shape, and a lot of effort is required to create the partition surface plates. Furthermore, after the poured concrete has hardened, a lot of labor is required, such as removing the partition face plate from the mold and leveling the concrete surface.

In addition, various special partition face plates have been proposed, but in all of them, separation occurs between the old and new concrete after a long period of time after the concrete has hardened.
Minute cracks occur and airtight performance cannot be obtained.

The present invention has been proposed in order to eliminate such drawbacks, and involves attaching a plate having openings on both sides of a vertical steel plate in the rigid direction, and pasting an unvulcanized rubber tape in the rigid direction. A partition plate of 100 mm is placed in the vertical concrete joint, horizontal reinforcing bars are placed through the opening of the plate, and then concrete is poured into the joint, and inside the poured concrete. The present invention relates to a pouring method for a reinforced concrete structure, characterized in that the partition plate is buried in the concrete structure.

As described above, in the present invention, the rigidity of the partition plate in the rigid direction is increased by attaching plates having openings in the rigid direction on both sides of the vertical iron plate that constitutes the main part of the partition plate in the concrete vertical joint. The thin partition plate can withstand the required concrete lateral pressure, and the partition plate is installed at the vertical joint of the concrete, and horizontal reinforcing bars are placed through the opening of the plate. Therefore, the partition plate and the concrete are effectively integrated, and the need for penetrating horizontal reinforcement through the partition plate is eliminated, improving the workability of reinforcement and other operations.

Furthermore, on both sides of the vertical iron plate that constitutes the main part of the partition plate, unvulcanized rubber tape is affixed in the rigid direction with good adhesion to the iron plate surface and good integration with concrete, so that the vertical iron plate and concrete High airtightness can be achieved even if skin separation occurs.

Furthermore, in the present invention, as described above, the plate having openings on both sides of the vertical iron plate is installed in the rigid direction, so concrete placement is easy, and since there is no opening in the vertical iron plate, sufficient tightening is possible. It is possible to harden and place dense concrete,
Furthermore, since concrete does not leak, the work floor is not soiled and cleaning work is omitted.

The present invention will be described below with reference to the illustrated embodiments.

Reference numeral 1 is a vertical steel plate, and plates 2 such as expanded metal laths having openings and flanges at the ends are welded to both the front and back sides of the plate in the stiff direction, and have sufficient cross-sectional performance against concrete lateral pressure. configured to obtain. Further, on both the front and back sides of the vertical iron plate 1, a required number of unvulcanized rubber tapes 3 are stuck continuously in the rigid direction, thus consisting of the vertical iron plate 1, the plate 2, and the unvulcanized rubber tape 3. A partition plate is constructed.

Then, the partition plate is arranged at the concrete vertical joint, horizontal reinforcing bars 4 are arranged through the opening of the plate 2, and then concrete 5 is poured and the concrete is placed in the concrete. This is to bury the partition plate.

In the figure, 6 is a vertical reinforcing bar, and 7 is a formwork.

FIG. 2 is a horizontal cross-sectional view showing the case where the present invention is applied to the airtight vertical joint part provided with the circular part of the cylindrical structure, and the airtight vertical joint part of the wall part of the rectangular cylindrical structure. In the drawings, parts equivalent to those of the above embodiment are given the same reference numerals.

Although the present invention has been described above with reference to embodiments, the present invention is, of course, not limited to such embodiments, and can be modified in various ways without departing from the spirit of the present invention. .

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway slope view showing the implementation status of one embodiment of the pouring method for reinforced concrete structures according to the present invention, and Figs. FIG. 3 is a horizontal cross-sectional view showing a tangential circular portion of a cylindrical structure and an airtight vertical joint portion of a wall portion of a rectangular cylindrical structure. 1...Vertical iron plate, 2...Plate, 3...Unvulcanized rubber tape, 4...Horizontal reinforcement, 5...Concrete.

Claims (1)

[Claims] 1. Attach a plate with openings on both sides of a vertical steel plate in the rigid direction, and place a partition plate made of unvulcanized rubber tape in the rigid direction at the concrete vertical joint, and close the opening of the plate. A joint method for a reinforced concrete structure, characterized in that horizontal reinforcing bars are arranged through the joint, and then concrete is poured into the joint, and the partition plate is buried in the poured concrete. .