JPH04155013A - Formwork on concrete subslab - Google Patents

Abstract

PURPOSE:To build a strong foundation simply and economically by providing continuous sheathing boards on base part sheathing boards provided on a concrete subslab, fixing them with braces, and placing concrete after backfilling earth and sand. CONSTITUTION:L-shaped through tools 15, 15 are fitted to a sheathing board supporting tool 11 mounted on a concrete subslab 2, and base part sheathing boards 12, 12 are provided with the L-shaped through tools 15 and the sheathing board supporting tool 11. Nextly, continuous sheathing board receiving clips 16, 16 are fitted to the L-shaped through tools 15, and hereby continuous sheathing boards 17, 17 are provided. Nextly, an upper bed width holding tool 19 and through tools 20, 20 are fitted on the upper end of the continuous sheathing boards 17, the continuous sheathing boards 17 are fixed with braces 21, 21, and earth and sand 5, 5 are backfilled up to the ground surface. Nextly concrete is placed, and after hardening the upper bed width holding tool 19, the through tools 20, and the braces 21 are removed.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a method for constructing concrete dumping forms for building foundations.

<Conventional technology> Conventionally, when constructing the foundation of a building, a base formwork for pouring the base part of the cloth foundation, which is buried underground after reinforcing, and an upright formwork that constitutes the cloth part are used. A formwork consisting of is installed, and concrete is poured into this formwork from above,
After the concrete has hardened, the formwork for the base part and fabric part is removed and these formworks can be reused.

<Problems to be solved by the invention> However, in this conventional horizontal foundation construction method, in order to reuse the formwork such as wooden formwork, it is extremely difficult to remove the formwork of the base part and fabric part. It is time consuming, requires manual labor, and problems such as maintenance and management associated with reuse are commonly observed. In addition, various types of waste formwork have been proposed as an alternative to such wooden formwork, etc., but all of these waste formworks are unreasonable in construction, complicated and troublesome, and lack economic efficiency, making them impractical. There are problems such as not being able to meet the targets.

Therefore, the purpose of the present invention is to solve the problems in the prior art by using a base weir board and fabric part made of fiber cement board as waste formwork without reusing the formwork when constructing the foundation of a building. By forming the required formwork with the weir plate using an L-shaped through tool and cloth part weir plate receiving clip, and integrating it with the poured concrete, there is no need to remove the formwork after the concrete has hardened. To provide a concrete waste form construction method that can be easily and economically constructed.

<Means for solving the problem> In order to achieve the above-mentioned object, the concrete waste form frame method of the first invention attaches a weir board support on top of the waste concrete, and also attaches a weir board support to this weir board support. Attach the L-shaped threading tool, install the base weir plate using this L-shaped threading tool and the weir plate support, attach the fabric weir plate receiving clip to the L-shaped threading tool, and then attach the fabric weir plate receiving clip to the L-shaped threading tool. Install the Nunobe weir board, attach the top width holder and the threading tool to the upper end of the Nunobe weir board, fix the Nunobe weir board with retainers, backfill earth and sand to the ground level, and pour concrete. and removing the top width holder, the retainer, and the threading tool after the concrete has hardened, and the concrete waste form frame of the second invention implements the concrete waste form frame construction method of the first invention. includes a base weir plate made of a fiber cement board supported by a weir plate support on top of waste concrete, an L-shaped through tool attached to the weir plate support and with which the inner end of the base weir plate is locked;
A cloth weir plate made of fiber cement board is vertically installed and supported by a cloth weir plate receiving clip that is locked to an L-shaped passage tool, a top width holder and a passer are attached to the upper end of the cloth weir plate. It consists of tools.

<Function> In the first and second inventions configured in this way,
The base part weir board and the cloth part weir board are made of fiber cement board,
The weir plate support, the L-shaped through tool, the fabric weir plate receiving clip, and the top width holder are assembled into the required formwork structure, and after concrete is poured, the base weir plate and fabric weir plate are assembled. By using waste formwork, it can be constructed very easily and in a short period of time without requiring any skill.

Other objects, features and advantages of the invention will become apparent from the following detailed description taken in conjunction with the accompanying drawings.

<Example of implementation> Figures 1 to 6 of the drawings show an example of a concrete waste form for carrying out the concrete waste form method of the present invention. Concrete waste form 10 for implementing the concrete waste form method
The base weir plate 12 consists of an L-shaped fiber cement board 14 supported by a weir plate support 11 on the concrete waste 2, an L-shaped passage tool 15 attached to the weir plate support 11, and A fabric weir plate receiving clip 16 attached to the L-shaped passage tool 15, a fabric weir plate 17 made of a fiber cement board 18 vertically attached and supported by the fabric weir plate receiving clip 16, and this fabric weir It mainly consists of a top width holder 19 and a threading tool 20 attached to the upper end of the plate 17.

As shown in the figure, the base weir plate 12 and cloth weir plate 17 are made of materials that are compatible with concrete and have good adhesion to concrete, such as stone wire slate, non-asbestos slate, pulp cement board, etc. Fiber cement boards are suitable, and wood chip cement boards, calcium silicate boards, etc. can also be used.

First, the base weir plate 12 made of fiber cement board 14 is mounted and supported on the marked waste concrete 2 by the weir plate support 11 made of metal plate material or plastic material as shown in FIG. be done. As clearly shown in FIGS. 2 to 4, this weir plate support 11 is made of a metal plate such as iron or aluminum or plastic material in an inverted U shape, and has a protrusion 24 formed in the center of the upper part. Holes 26 for attaching L-shaped passages are provided on the left and right sides of this protrusion 24, and the L-shaped passages 15 can be attached to these holes 26 on-site using screws, bolts, or rivets. however,
The method for attaching the L-shaped passer 15 is not limited to this, and it may be attached using a presser clip, or by providing a claw on the weir plate support 11, the L-shaped passer 15 can be attached. Furthermore, attachment portions 27 extending in the horizontal direction are provided at the lower ends of the leg portions 25 on both sides of the weir plate support 11. This mounting part 27 is suitably provided with a slit 28 in the center of the drill, and as shown in FIG. 4, it can be bent and cut at the slit 28 according to the base width at the site to maintain a predetermined width. is now possible. Further, the weir plate support 11 is fixed to the waste concrete 2 through the attachment hole 29 with concrete nails 3 or the like.

The base weir plate 12 is preferably a fiber cement board 14 having an L-shaped cross section, for example, an L-shaped fiber cement plate 14 that is attached adjacent to the protrusion 24 of the weir plate support 11 attached to the top of the waste concrete 2. The inner end of the L-shaped fiber cement board 14 is brought into contact with the threading tool 15, and is restrained by a restraining part 33 of a fabric weir plate receiving clip 16, which will be described later.

The L-shaped passage tool 15 preferably has a cross-sectional shape as shown in FIG. Installed. If necessary, the L-shaped threading tool 15 can be attached using the presser clip as described above.
Alternatively, a claw may be provided on the weir plate support 11 to attach the L-shaped passage tool 15.

As shown in FIGS. 1, 2, and 5, the weir plate support clip 16 is made of a metal plate or plastic material and has the same width as the weir plate support 12 in the bent shape shown in the figure. , a pick 31 for receiving the fabric part dam plate 17, a locking part 32 to be locked to the L-shaped passer 15, and a restraining part 33 to suppress the end of the base part dam plate 12 are provided.

For example, a fiber cement board 18 is suitable for the Nunobe weir board 17,
If necessary, a perforated fiber cement board with small holes can be used, and as shown in FIG. no 31
The lower end is fitted into the holder and supported vertically, and a top width holder is attached to the upper part.

One top width holder is made of a suitable metal plate or plastic material into the shape shown in Figures 1 and 6.
As shown in the figure, the cloth weir plates 17 are spaced vertically and parallel to each other. The claw 35 into which the upper end of the cloth weir plate 17 is fitted is punched, bent, molded, or glued so as to hold it in place.
It is provided by welding or the like, and a groove 36 for attaching the through tool 20 is formed, and attachment holes 37 on both sides are formed.
It is designed so that you can bet cheno 22 on the other hand and take the reserve 21. Further, it is preferable to provide a hole 39 for an anchor bolt in the center of this top width holder 19.

Concrete waste form frame 10 of the present invention configured in this way
The concrete waste form construction method using concrete is carried out according to the following construction order.

First, assemble reinforcing bars on the waste concrete 2 with markings 1, and fix the weir plate support 11 to the waste concrete 2 with concrete nails 3, and at the same time, attach the L-shaped through-holes 15 with screws, bolts, or rivets. Install and secure. If necessary, this L-shaped threading tool 15 can also be attached using a holding clip or a nail.
At the same time, the other lower end of the base dam plate 2 is locked to the bent end 30 of the lower attachment part 27 of the dam plate support 11, and the base dam plate 12 is fixed. Install.

At this time, if necessary, the attachment part 27 at the lower end of the base weir plate 12 is bent and separated at the slit 28, set to the required width, and fixed to the waste concrete 2 with concrete nails 4. You can also do that. Also, this L
The cloth part weir plate receiving clip 16 is locked and attached to the letter-shaped threading tool 15.

Next, insert the lower end of the cloth weir plate 17, such as a fiber cement board 18 or a perforated board thereof, into the arm 31 of the cloth weir plate receiving clip 16 and attach it to the cloth weir plate 17. At the same time, the top width holder 19 is attached to the upper end of the cloth part dam board 17, and the canvas part dam board 17 is attached and held approximately parallel to each other at intervals.6 Next, the groove part 36 of the top width holder 19 Passing tool 2
0 to further strengthen it. Once the cloth weir plate 17 has been attached in this way, the chino 22 is hung on both sides of the top width holder 19 and tensioned, thereby removing the retainer 21 and firmly fixing the cloth weir plate 17. Further, if necessary, an appropriate reinforcing tension member can be provided at the center of the cloth weir plate 17.

Once the concrete waste form 10 of the present invention is constructed in this way, earth and sand 5 is backfilled to the ground surface where a portion of the base weir plate 12 and cloth part weir plate 17 are buried, and concrete 1 is poured. Then the foundation will be built. Once the concrete 1 has been poured and the concrete 1 has hardened, remove the chino 22 of the retainer 21, the through tool 20, and the top width holder 19, and remove the cloth weir plate 17 and the base weir plate 12 from the formwork. By doing so, the foundation of a building can be constructed very easily and in a short period of time without requiring any skill, and it can be constructed economically and practically without requiring the same amount of time and effort.

Furthermore, if necessary, mortar finishing can be applied from the outside of the cloth part weir plate 17, and in this case, especially the cloth part weir plate 1
As for 7, a perforated plate is more suitable. Furthermore, the removed top width holder 19, chino 22, and threading tool 20 can be used repeatedly.

Further, the reinforcement arrangement may be the same as in the past, or may be partially pre-fabricated in a factory and used as appropriate.

<Effects of the Invention> As described above, according to the concrete waste form construction method of the present invention, the base weir plate can be fixed and supported using the weir plate support, the L-shaped through tool, and the fabric weir plate receiving clip. At the same time, the Nunobe weir plate is fixedly supported using the Nunobe weir plate receiving clip and the top width holder, the required formwork is assembled and constructed, and concrete is poured into this formwork to make it strong. The foundation can be easily constructed in a short period of time, no special skill is required, and materials that are compatible with concrete, such as fiber cement boards, can be used for the weir board to integrate it with the concrete. Once the formwork has been constructed, the base part and part of the cloth part are backfilled and fixedly supported from the surrounding area, so that the base part weir board and the cloth part weir board are more firmly supported against the pressure of concrete during concrete pouring. It is convenient to use, and provides effects such as being able to construct a foundation economically and inexpensively without spending much time and effort.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing an embodiment of a waste form frame constructed by the concrete waste form frame construction method of the present invention, and Fig. 2 is an enlarged portion of the L-shaped through tool and the rib part of the cloth part weir board receiver. Fig. 3 is a perspective view of the weir plate support, Fig. 4 is a perspective view of a part of the weir plate support, Fig. 5 is a perspective view of the fabric weir plate support clip, and Fig. 6 is the top end. In Figure 0, which is a perspective view of the width holder, concrete, 2: waste concrete, 3: concrete nail, 5:
Earth and sand, 10: Concrete waste form, 11; Weir plate support,
12: Base part weir plate, 15: L-shaped passing tool, 16: Cloth part weir plate receiving clip, 17: Cloth part weir plate, 19: Top width holder, 20: Passing tool, 21: Retainer. Figure 1 Figure 2

Claims (2)

[Claims] (1) Attach a weir plate support on top of the waste concrete, and attach an L-shaped through tool to this weir plate support, and
Install the base weir plate using the L-shaped threading tool and the weir plate support, attach the fabric weir plate receiving clip to the L-shaped threading tool, install the fabric weir plate using the fabric weir plate receiving clip, and then Attach the top width retainer and threading tool to the upper end of the weir plate, fix the cloth part weir plate with retainers, backfill earth and sand to the ground level, pour concrete, and remove the top width retainer after the concrete hardens. A concrete waste form construction method characterized in that it consists of removing a retainer and a threading tool. (2) A base weir plate consisting of a fiber cement board supported by a weir plate support on the concrete, an L to which the inner end of the base weir plate is locked when attached to the weir plate support. A cloth weir plate made of fiber cement board that is installed and supported almost vertically by a cloth weir plate receiving clip that is locked to a L-shaped passage tool, and a top width that is attached to the upper end of the cloth weir plate. A concrete waste form comprising a holding tool and a threading tool.