JP2743003B2 - Recessed formwork equipment for concrete formwork construction and its construction method. - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an embedded formwork apparatus used for constructing a concrete formwork and a method for constructing the formwork apparatus.

[Conventional technology]

Conventionally, as a method of constructing a concrete frame,
There is a construction method of casting ready-mixed concrete, and a construction method of spraying mortar using an embedded metal mesh formwork or a lightweight simple formwork.

[Problems to be Solved by the Invention] The method of placing ready-mixed concrete is based on the conventionally used formwork, and on slopes with poor scaffolding, transporting heavy formwork materials, assembling and removing formwork. This would require excessive labor. In addition, embedding-type wire mesh forms are easy to construct, but cannot be cast in fresh concrete. Although it is good, it has many drawbacks, such as a large number of parts, a lot of labor for assembling and removing the formwork, and the strength of the legal form is weak because the ready-mixed concrete cannot be cast.

The present invention has been made to solve the above problems in the concrete frame method, and is lightweight, easy to handle, excellent in workability, and capable of placing ready-mixed concrete, It is an object of the present invention to provide an embedded formwork apparatus capable of installing a high-precision formwork and a method of constructing the same.

[Means for solving the problem]

Regarding the configuration of the present invention to achieve the above object,
Referring to FIG. 1 to FIG. 13 corresponding to the embodiment, the invention of claim 1 is directed to a pair of side form plates 2, 3 formed by a wire mesh plate, an upper form plate 5, and a lower form plate. 4 are joined to each other with a separator 7 formed in a cross-girder shape therebetween, and are formed into a rectangular cylindrical vertical beam form 1a which can be folded flat, and have the same configuration as this form. An open hole 17 is formed only in the upper part of the plate 6, and a rectangular tube-shaped horizontal beam form 1b that can be folded flat.
Are connected to each other in an intersecting manner at the ends of the molds 1a, 1a, 1b, 1b.

Further, the invention of claim 2 has a pair of side mold plates 2 and 3 formed of a wire mesh plate, an upper mold plate 5 and a lower mold plate 4, and a separator 7 formed in a cross-girder shape inside. A rectangular tube-shaped vertical beam form 1a which is connected to each other and can be folded flat, and has the same configuration as this form, and only the upper form plate 6 has an open hole 17 formed at the upper part. The enabled rectangular tubular cross-beam form 1b is joined to each other in an intersecting manner at the ends of the form forms 1a, 1a, 1b, 1b, and the main reinforcement is provided in each of the form forms 1a, 1b.
After arranging 25 and 25, concrete C is removed from the open hole 17 of the horizontal beam form 1b and the void 23 formed at the intersection of the respective forms.
And burying each formwork in concrete.

[Action]

In the present invention having the above-described structure, the vertical beam form 1a is formed by connecting the form plates 2, 4, 3 and 5 to each other via the separator 7 as shown in FIGS. It is formed in a certain rectangular cylindrical shape, and can be folded from a fold as shown in FIG. 6 to a flat state as shown in FIG. It is carried into the site in this flat folded state, and is formed into a rectangular tube and used. Similarly to the vertical beam form 1a, the horizontal beam form 1b has a square tubular shape as shown in FIGS. 8 and 9, and a flat folded state as shown in FIGS. 10 and 7. be able to. Then, as shown in FIG. 11, each of the molds 1a, 1a, 1b, 1b is joined to each other at the ends thereof in an intersecting manner to form a mold for construction of a legal form.

〔Example〕

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

A in figure concrete method frame, it is formed in a lattice shape by a vertical beam portion A ₁ and the transverse beam part A ₂ which is a cross-sectional generally square shape. 1a is a vertical beam-type frame for construction of the vertical beam portion A _1, 1b
In cross beam formwork for applying a transverse beam section A _2, the present invention formwork device, the longitudinal beams formwork 1a, 1a and the cross beam mold 1b, is formed by a and 1b coupled in a grid pattern.

As shown in FIGS. 4 and 5, the vertical beam form 1a is composed of a pair of side form plates 2, 3 and a lower form plate formed by using a wire mesh plate to which a thin reinforcing bar is attached vertically and horizontally. 4 and an upper mold 5 are formed in a rectangular tube shape as a whole, and separators 7 for coupling the respective mold plates are arranged inside the mold at a predetermined interval in the length direction of the mold 1. Moreover, the vertical beam form 1a has a structure that can be folded flat. That is, the separator 7 is formed by connecting a plurality of horizontal streaks 8 and 8 and vertical streaks 9 and 9 in a cross-girder shape, and engaging portions 10 and 10 are provided at both ends of the horizontal streaks 8. The streaks 9, 9 have an L-shaped bent contact portion 11 at the lower end thereof and a hook portion 12 at the upper end thereof. And, on both sides of the separator 7, horizontal stripes 8, 8
The side frame plates 2 and 3 are rotatably coupled in the plane direction via the engaging portions 10 and 10. Also, one side form plate 2
One end of the lower form plate 4 is vertically rotatably connected to the lower end of the lower form plate 13 and one end of the upper form plate 5 is connected to the upper end of the other side form plate 3 in the vertical direction. Is rotatably connected to the motor. For example, as shown in FIG. 11, the rotatable joints 13 and 14 are connected to reinforcing bars 15 and 15 at side ends of the form plates 2, 3, 4 and 5.
Are sandwiched using an S-shaped connecting bracket 16.

As shown in FIGS. 6 and 7, the vertical beam form 1a is folded so that the upper form 5 is rotated along with the outer surface of the other side form 3 by the rotation of the connecting portion 14, and the lower form The frame plate 4 is folded so as to be attached to the outer surface of one of the side molds 2 by the rotation of the connecting portion 13, and the mold plates 2, 4, 3, and 5 are further separated by the separator 7 and the mold plates 2, 3. Can be folded into a flat shape by the rotation of the engaging portions 10 and 10, and can be carried to the site in that state. In addition, in the facility,
As shown in FIG. 5, the separator 7 is surrounded by each of the form plates 2, 3, 4, and 5, and the separator 7 is attached to the reinforcing bar of the upper form plate 5.
The hooks of the vertical streaks 9, 9 are engaged and engaged. Lower form plate 4
Indicates contact with the contact portions 11 of the vertical stripes 9.

The horizontal beam form 1b has the same structure as the vertical beam form 1a as shown in FIGS. 8 and 9, except that the width of the upper form plate 6 is almost half. It is that you are. Further, the separator 7 can be the same as the above separator, but one of the vertical streaks 9 may not have the hook 12 as shown in the figure. Other structures that can be folded are the same as the vertical beam form 1a. Therefore, in the use state as shown in FIG. 9, an open hole 17 extending in the length direction of the cross beam form 1b is provided between the upper end of the one side form plate 2 and the open end of the upper form plate 6. Will be formed.

The vertical beam form 1a and the horizontal beam form 1b described above are shown in FIG.
As shown in FIG. 12 and FIG. 12, the end portions of the side frame plates 2 and 3 are arranged in an intersecting manner in contact with each other, and are connected to each other by a connecting bracket 18. As shown in FIG.
Along with bending into a mold, a plurality of horizontal streaks 20, 20 formed with inward chevron projections 19, 19 in the middle part of both sides are arranged at intervals above and below, and they are arranged in a plurality of vertical streaks 21, It is combined at 21. Then, the connecting bracket 18 is applied to the inside of the form plates 2 and 3 which are in contact with each other, and the chevron projections 19 and 19 are attached to the form plates 2 and 3.
The connection is made by projecting from each mesh of No. 3 and penetrating vertically through the protruding portion and inserting the connecting pins 22 and 22. As a result, a cavity 23 whose upper part is open is formed at the intersection of each of the molds 1a and 1b.

As described above, the vertical beam forms 1a, 1a and the horizontal beam forms 1b, 1b
After the installation of the apparatus of the present invention, the concrete C is poured into the formwork 1a, 1b. The slag of the concrete is slightly outside of the meshes of the form plates 2, 3, 4, 5, and 6, so that if it is ironed, the normal frame A can be formed.

In the method of the present invention, the concrete formwork A is constructed by using the above-described formwork apparatus.

That is, the above-mentioned formwork apparatus in which a number of vertical beam forms 1a, 1a and horizontal beam forms 1b, 1b are connected to each other at their ends, for example, the anchor 24 is fixed at the intersection of the forms 1a, 1b. And then use the open holes 17 of the horizontal beam forms 1b, 1b and the void 23 at the intersection, or temporarily open the upper form plate 6 of the horizontal beam form 1b, The main bars 25, 25 are arranged in 1a, 1a, 1b, 1b. Then, the above-mentioned open holes are formed in each of the molds 1a, 1a, 1b, 1b.
Pour concrete C from 17 and void 23. Thereby, the concrete C is filled in each of the molds 1a, 1a, 1b, 1b, and a part of the slag projects from the mesh of the molds 1a, 1b. If the noro is ironed, it will be possible to construct a legal form in which the forms 1a and 1b are buried in concrete.

The apparatus and method of the present invention can be applied not only to the construction of the concrete frame but also to the simultaneous construction of the terrace A and the terrace pocket B for vegetation.

To construct the legal frame A and the terrace pocket B at the same time,
As shown in FIGS. 14 and 15, a wire mesh outer mold 25 and an inner mold 26 formed in a flat U shape are used, and the
1b and the longitudinal beam forms 1a, 1b opposed to both sides thereof.
In this case, as shown in FIG. 15, the horizontal beam form 1b is installed with its side form plate 3 down and the open hole 17 positioned diagonally above. Then, it is connected to the arranged main bar 25, and the vertical bars 28, 28 for the terrace pocket are erected, and the horizontal bars 29, 28
The outer mold 26 and the inner mold 27 are erected with the reinforcing bars 29 interposed therebetween. Concrete is outer formwork 26 and inner formwork
If it is cast between 27 and 27, it will be filled into the horizontal beam form 1b through the open hole 17, so the terrace pocket form
Concrete can be simultaneously placed on 26 and 27 and the horizontal beam form 1b, and as shown in FIG. 16, the construction of the legal frame A and the terrace pocket B can be performed simultaneously.

The terrace pocket B is the vertical beams A ₁ , A ₁ and the horizontal beams of the frame A
Can be facilities appropriately to any location in the frame surrounded by the A _2, A _2. As shown in FIG. 16, the terrace pocket B is filled with a soil 30 or the like, and vegetation is appropriately provided.

〔The invention's effect〕

As described above, in the formwork apparatus of the present invention, a pair of side formwork plates formed of a wire mesh plate, an upper formwork plate, and a lower formwork plate are interleaved with a separator formed in a cross-girder shape. And a rectangular tube-shaped vertical beam formwork that can be folded flat,
It has the same structure as this formwork, and crosses at the end of each formwork with a rectangular tube-shaped horizontal beam formwork that has an open hole formed only in the upper formwork plate and can be folded flat. In addition, the construction method of the present invention uses the above-described formwork device, and after arranging the main reinforcement in each formwork, the open hole of the cross beam formwork and the intersection of each formwork. Since concrete is filled from the void formed in the joint and each mold is buried in the concrete, the following excellent effects are obtained.

(1) The vertical beam form and the horizontal beam form can be folded flat, which is convenient for transportation and easy to carry into a site with poor scaffolding. It is easy to perform and the workability is good.

(2) Since each mold is an embedded type made of wire mesh, the trouble of removing the mold as in the related art is increased.

(3) Since each mold is formed in the shape of a rectangular tube with the separator in the middle, the strength of the embedded mold is large, and a strong concrete method frame can be installed.

(4) Concrete can be cast using the open holes of the cross beam formwork and the voids formed at the intersections of the formwork, so that the concrete can be reliably filled into each formwork.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a perspective view showing a construction state of a construction method, FIG. 2 is a sectional view taken along the line II in FIG. 1, and FIG. FIG. 4 is a perspective view of the vertical beam formwork, FIG. 5 is a front view of the same, FIG. 6 is a front view of the same intermediate folded state, FIG. 7 is a plan view of the same flat folded state, FIG. 8 is a perspective view of a cross beam formwork, FIG. 9 is a front view of the same, FIG. 10 is a front view of the intermediate folded state, FIG. 11 is a cross-sectional view showing a main part of the formwork plate connection, and FIG. FIG. 13 is an enlarged perspective view showing the essential parts of the formwork, FIG. 14 is a perspective view of the connecting metal fitting, and FIG. 15 is a view showing a state where the formwork of the terrace pocket is combined. FIG. 16 is a side cross-sectional view showing the state of facilities of the legal frame and the terrace pocket. A ...... concrete method frame, A ₁ ...... vertical beam portion A ₂ ...... transverse beam section, B ...... Terrace pocket C ...... concrete, 1a ...... longitudinal beam formwork 1b ...... transverse beam-type frame, 2,3 ...... Side form plate 4 ... Lower form plate 5, 5, 6 ... Upper form plate 7 ... Separator, 17 ... Open hole 23 ... Vacancy, 25 ... Main line 26 ... Outer form of terrace pocket Frame 27 …… Inner form of the terrace pocket 30 …… Site

Claims (2)

(57) [Claims] An upper mold plate and a lower mold plate formed of a wire mesh plate are joined to each other with a separator formed in a cross-girder shape, and can be folded flat. Square tube-shaped vertical beam formwork that has the same configuration as this formwork, and only the upper formwork plate is formed with an open hole in the upper part, and a rectangular tube-shaped transverse beam formwork that can be folded flat, An embedded formwork apparatus for constructing a concrete formwork, characterized in that the formwork parts are connected to each other at the ends of the formwork in an intersecting manner. 2. A pair of side form plates formed by a wire mesh plate and an upper form plate and a lower form plate are joined to each other with a separator formed in a cross-girder shape, and can be folded flat. Square tube-shaped vertical beam formwork that has the same configuration as this formwork, and only the upper formwork plate is formed with an open hole in the upper part, and a rectangular tube-shaped transverse beam formwork that can be folded flat, After mutually joining each other at the ends of the formwork and arranging the main reinforcement in the above-mentioned formwork, the opening formed in the cross beam formwork and the space formed at the intersection-like joint of each formwork are formed. A method of embedding a concrete formwork, characterized by filling concrete more and embedding each formwork in concrete.