JP2008291436A - Concrete placing form, structure using it, and construction method for the structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a concrete placing form which enables the construction of a concrete structure without the application of facing to a surface or a deterioration in beauty. <P>SOLUTION: Characteristically, this concrete placing form comprises: a form panel which is composed of a rectangular plate body provided with a plurality of openings capable of holding the placed concrete, and a frame body provided around the plate body; a partition frame which is arranged in the state of facing the form panel; and a supporting body for connecting the form panel and the partition frame together. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a residual formwork for placing concrete, a structure using the same, and a construction method for the structure.

Conventionally, when constructing a structure such as a concrete retaining wall or a sabo dam, a remaining formwork that is used as a formwork at the time of placing concrete and remains on the surface after the concrete is solidified is used.
For the remaining formwork, a concrete panel whose surface has been pseudomorphized is used.
In addition, there is known a method for constructing a structure by attaching a decorative panel whose surface is pseudo-lithiated to a remaining mold body of a flat plate made of metal or concrete.

However, the conventional construction method using the remaining formwork has the following problems.
<1> Since a decorative panel is separately attached to the surface of the remaining mold, manufacturing costs and construction costs increase.
<2> Since the residual formwork made of concrete is heavy, the transportation efficiency and construction efficiency are poor, and the construction cost becomes high.
<3> Those whose surface is not finished with cosmetics are inferior in aesthetics, and therefore, places where they can be used, such as places that are not visible to the public, are limited.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a concrete casting form that can construct a concrete structure without making a cosmetic finish on the surface without impairing the aesthetics, a structure using the same, and a method for constructing the structure. Objective.

The first invention of the present application made to achieve the above object comprises a rectangular plate provided with a plurality of openings capable of holding the placed concrete, and a frame provided around the plate. A formwork panel for concrete placement, comprising: a formwork panel comprising: a partition frame disposed so as to face the formwork panel; and a support for connecting the formwork panel and the partition frame. It is to provide.
Further, the second invention of the present application is the concrete casting mold according to the first invention of the present application, wherein the plate of the mold panel is provided with a concave portion and a convex portion. It provides a frame.
The third invention of the present application is the concrete mold of the first or second invention of the present application, wherein a plurality of locking projections are provided on the upper surface of the frame of the mold panel in the width direction of the mold panel. Providing a formwork for placing concrete, provided with a plurality of locking holes provided at equal intervals and at positions on the lower surface of the frame body of the formwork panel facing the locking projections. To do.
According to a fourth invention of the present application, in the concrete placement form according to any one of the first to third inventions of the present application, a plurality of partition frames arranged to face the formwork panel, and the plurality of sheets And a support for connecting the partition frames. A concrete casting form is provided.
Further, the fifth invention of the present application is a formwork panel made of a rectangular plate provided with a plurality of openings capable of holding the placed concrete, a partition frame arranged to face the formwork panel, A support for connecting the formwork panel and the partition frame, and a residual formwork portion formed by a concrete casting formwork, and the space between the formwork panel and the partition frame of the residual formwork portion is filled. The present invention provides a concrete structure characterized by comprising concrete.
Further, the sixth invention of the present application includes a formwork panel formed of a rectangular plate body provided with a plurality of openings capable of holding the placed concrete, a partition frame disposed so as to face the formwork panel, A support for connecting the formwork panel and the partition frame, a residual formwork part forming step of forming a residual formwork part by the concrete casting formwork, and the formwork panel and partition of the residual formwork part The present invention provides a method for constructing a concrete structure, characterized by comprising a concrete placing step for placing concrete between frames.

The present invention can obtain at least one of the following effects by means for solving the above-described problems.
<1> By forming the concave and convex portions on the surface of the formwork and forming them in a natural stone shape, no cosmetic finish is required at the time of constructing the structure, the aesthetics are increased, and the construction efficiency is improved.
<2> Since the mold is composed of a lightweight plate, the transportation efficiency and the construction efficiency can be improved, and the construction cost can be reduced.
<3> The unevenness provided on the surface of the formwork disperses forces acting on the formwork, such as the weight of concrete, at the time of constructing the structure, so that a formwork with high strength can be configured.
<4> A concrete structure is assembled by accurately assembling a plurality of concrete placement molds in multiple directions in the vertical direction by means of the locking projections provided on the upper surface of the mold and the locking holes provided on the lower surface. Can be constructed.
<5> Compared to conventional construction methods using wooden panels and the like, there is no need for temporary materials, and there is no work to dismantle the formwork, so that the construction can be greatly shortened.
<6> Since wood is not used in the formwork, it can contribute to mountain conservation and environmental conservation.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(1) Configuration of Concrete Placing Form As shown in FIG. 1, the concrete casting form 10 of the present invention has a form panel 20 and a partition disposed on the back so as to face the form panel 20. The frame 30 and the support body 40 which connects the formwork panel 20 and the partition frame 30 are comprised.

<1> Formwork Panel The formwork panel 20 is a member that becomes a formwork when casting concrete and remains on the surface after the concrete is solidified. The plate body 21 having a large number of holes and a frame provided around the plate body And a body 22.

The plate body 21 is formed in a porous plate body by providing a plurality of openings 211 capable of holding the placed concrete on a steel rectangular flat plate.
As shown in FIG. 2, the opening 211 is surrounded by an inclined portion 211a and a connecting portion 211b. The inclined portion 211a is formed to be gradually inclined outward toward the upper side, and the connecting portion 211b connects these adjacent inclined portion 211a groups by shifting them forward and backward.

And the opening part 211 enclosed by such an inclination part 211a and the connection part 211b is formed so that the concrete C set | placed on the back surface of the formwork panel 20 may not flow out, and it is opened like a receptacle. Yes. The opening 211 can be produced by inserting and extending a large number of slits in the same direction in the steel sheet and then pressing and raising the inclined portion 211a.
Further, the plate 22 is provided with gentle concave portions 212 and convex portions 213 on the surface by press working or the like, and has a natural stone shape.

The frame body 22 is provided around the plate body 21 so that the plate body 21 is not deformed by the weight of concrete acting on the formwork panel 20 during construction of the structure, and is configured by combining steel materials, wood, and the like. .
Among the frame bodies 22 provided around the formwork panel 20, the frame bodies 22a and 22b arranged on the upper side and the lower side are respectively located at corresponding positions, and the upper frame body 22a is provided with a locking projection 23. A plurality of locking holes 24 are provided in the lower frame body 22b.
The locking projections 23 and the locking holes 24 can also be provided at equal intervals in the width direction of the formwork panel 20.

<2> Partition Frame The partition frame 30 is a member disposed on the back surface so as to face the formwork panel 20.
The partition frame 30 is configured by a metal corrugated plate or flat plate, and prevents the concrete placed on the back surface of the mold panel 20 from flowing out.

<3> Support The support 40 is a member that connects the formwork panel 20 and the partition frame 30 with a predetermined separation.
The support 40 is a rod-shaped member such as a reinforcing bar or a separator, and is attached to the mold panel 20 at one end and to the partition frame 30 at the other end by a known method such as screwing or welding.

Since the concrete casting form 10 is configured by connecting the form panel 20 and the partition frame 30 with the support body 40 in a state where they are separated from each other by a predetermined distance, the concrete placing form 20 is self-supporting.
Moreover, since the concrete casting form 10 is comprised by the formwork panel 20 which consists of a board | plate body, and the partition frame 30 which also consists of a board body, the arrangement | positioning at the time of conveyance and construction becomes easy.

(2) Construction method Next, the construction method of a concrete structure using the concrete placement form 10 is demonstrated using FIG. 3 thru | or FIG.

<1> Raising the Formwork As shown in FIG. 3, the concrete casting form 10 is assembled and connected to construct the remaining formwork 11.
A base 50 may be formed in advance in the lower part of the remaining mold 11 in accordance with the shape of the concrete structure to be constructed.
The concrete formwork 10 is self-supporting and is light in weight so that it can be easily transported and constructed.
As shown in FIG. 4, the remaining mold part 11 is formed on the upper surface of the lower concrete casting mold 10b in the locking holes 24 provided at equal intervals on the lower surface of the upper concrete casting mold 10a. Similarly, it is assembled and formed while fitting the locking projections 23 provided at equal intervals.
Since the engaging projections 23 are fitted into the engaging holes 24 and assembled, the assembly can be performed while positioning easily.

<2> Placing concrete After assembling the remaining mold part 11 to a predetermined height, as shown in FIG. 3, the concrete C is placed between the mold panel 20 and the partition frame 30 of the remaining mold part 11. To cast.
Since the opening 211 for holding the concrete C is formed on the surface of the plate body 21 of the formwork panel 20, the concrete C does not leak to the outside, and irregularities are formed on the surface.

The surface of the plate body 21 of the formwork panel 20 has a shape in which the concrete C held by the inclined portion 211a is exposed from the opening 211, so that the surface is finished with concrete.
Furthermore, since the plate body 21 is provided with the gentle concave portions 212 and the convex portions 213 on the surface, it is possible to construct a concrete structure having a natural stone-like surface without applying a decorative finish.
In addition, the concave portion 212 and the convex portion 213 provided in the mold panel 20 distribute the load due to the weight of the concrete casting mold 10 and the concrete C.

The above steps are repeated to construct a concrete structure as shown in FIG.
Since the remaining mold part 11 can be easily constructed with a lightweight concrete casting mold 10, the pitch (*) is constructed at a time compared to the case of constructing a structure using a heavy concrete panel. Since the height can be made large, it can be constructed in a short construction period.

[Other Examples]
A concrete structure having a level difference as shown in FIG. 6 can be constructed by forming the remaining formwork 11 in one stage of the concrete placement form 10 and repeating the process of placing concrete C. .
Since the concrete casting form 10 is self-supporting, it can be easily constructed step by step.

Moreover, as shown in FIG. 7, the partition frame 30 arrange | positioned on the back surface of the formwork panel 20 can also be provided in multiple numbers separated by predetermined intervals. The partition frames 30 are connected by a support 40.
The formwork panel 20 configured in this way is assembled to form the remaining formwork part 11, concrete C is placed between the formwork panel 20 and the partition frame 30, and the space between the concrete C and the embankment layer 60 is formed. By filling the partition frame 30 with coarse aggregate, crushed stone 71, and the like to construct the structure, a concrete structure having the drainage layer 70 can be easily constructed.

Further, as shown in FIG. 8, the partition frame 30 provided to face the mold 20 can be used as the mold panel 20.
The remaining mold part 11 can be easily constructed by changing the length of the support 40 between the opposing mold panels 20 in accordance with the shape of the structure to be constructed.

The perspective view of the formwork for concrete placement of this invention. Explanatory drawing of the opening part provided in the mold. Explanatory drawing of the residual formwork part of this invention. The perspective view of the residual mold part of this invention. Explanatory drawing of the concrete structure of this invention. Explanatory drawing of the concrete structure concerning the other Example of this invention. Explanatory drawing of the mold for concrete placement concerning the other Example of this invention. Explanatory drawing of the mold for concrete placement concerning the other Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Formwork for concrete placement 11 Remaining formwork part 20 Formwork panel 21 Plate body 211 Opening part 212 Recession part 213 Protrusion part 22 Frame body 23 Engagement protrusion part 24 Engagement hole 30 Partition frame 40 Support body 50 Base 60 Filling layer 70 Drainage layer

Claims (6)

A formwork panel comprising a rectangular plate provided with a plurality of openings capable of holding the placed concrete, and a frame provided around the plate,
A partition frame arranged to face the formwork panel;
A support for connecting the formwork panel and the partition frame,
Formwork for concrete placement. 2. The concrete casting form according to claim 1, wherein a concave part and a convex part are provided on the plate body of the form panel. In the concrete casting form according to claim 1 or 2,
A plurality of locking projections are provided on the upper surface of the frame of the mold panel,
In the lower surface of the frame body of the formwork panel, a plurality of locking holes are provided at positions facing the locking projections,
Formwork for concrete placement. The concrete placement form according to any one of claims 1 to 3, wherein a plurality of partition frames arranged to face the form panel, and a support body connecting the plurality of partition frames. A concrete casting form, characterized by comprising: A formwork panel made of a rectangular plate provided with a plurality of openings capable of holding the placed concrete, a partition frame arranged to face the formwork panel, and the formwork panel and the partition frame are connected to each other. A residual mold part formed by a concrete casting mold made of
The residual mold part is made of concrete filled between a mold panel and a partition frame,
Concrete structure. A formwork panel made of a rectangular plate provided with a plurality of openings capable of holding the placed concrete, a partition frame arranged to face the formwork panel, and the formwork panel and the partition frame are connected to each other. A residual mold part forming step of forming a residual mold part with a concrete casting mold made of
A concrete placing step of placing concrete between the formwork panel and the partition frame of the remaining formwork portion,
Construction method for concrete structures.

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