JPH04155014A - Formwork on concrete subslab - Google Patents

Abstract

PURPOSE:To build a strong foundation simply and economically by providing continuous sheathing boards and base part sheathing boards on a concrete subslab, and placing concrete after backfilling earth and sand of the base part. CONSTITUTION:Continuous sheathing boards 14, 14 are standingly provided on a concrete subslab 2 with a continuous sheathing board supporting tool 15, an upper bed width holding tool 18 and through tools 19, 19 are fitted on the upper ends, and the continuous sheathing boards 14 are fixed with braces 20, 20. Base part sheathing board supporting tools 12, 12 are fitted on the concrete subslab 2, and base part sheathing boards 11, 11 are provided outside the tools 12. Nextly, after backfilling earth and sand 5a, 5a of the base part, concrete 1a is placed in the base part, and concrete 1b of the standing part is placed. After hardening of concrete 1a, 1b, the upper bed width holding tool 18, the through tools 19, and the braces 20 are removed, the base part sheathing boards 11 and the continuous sheathing boards 14 are left as they are, and remaining earth and sand 5b, 5b are backfilled.

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 formwork consisting of a base formwork for pouring the base part of the cloth foundation buried underground and a rising formwork that constitutes the cloth part is used. After installing and arranging reinforcement within this formwork, concrete is poured 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 such conventional foundation construction methods, in order to reuse formwork such as wooden formwork, it takes a lot of time to remove the formwork of the base part and cloth part. It takes time and effort, and problems such as maintenance and management associated with reuse are commonly seen. In addition, various types of waste formwork have been proposed as an alternative to such wooden formwork, but all of these waste formworks are unreasonable, complicated, and troublesome to construct, and are not economically viable. There are problems such as not being able to meet the targets.

Therefore, the purpose of the present invention is to solve these conventional problems by using am cement boards as discarded formwork for the base weir board and the fabric weir, without reusing the formwork when constructing the foundation of a building. Concrete that can be easily and economically constructed by forming the plates into the required formwork using weir plate supports and integrating them with the poured concrete, eliminating the need to remove the formwork after the concrete has hardened. The purpose is to provide a waste formwork construction method.

<Means for solving the problem> In order to achieve the above-mentioned object, the concrete dumping form construction method of the first invention stands the fabric weir board upright on top of the dumped concrete using the fabric weir board support. Attach a top width holder and a threading tool to the upper end of this fabric weir plate, fix the fabric weir plate with a retainer, and install a base weir plate support on top of the waste concrete. The base weir plate is installed on the outside of the weir plate support, and after backfilling the base with earth and sand, the base is concreted, and then,
The concrete waste form construction method of the second invention consists of pouring concrete in the rising part and removing the top width holder, threading tool, and retainer after the concrete has hardened. The cloth part weir plate is installed upright on top using the cloth part weir plate support, and the top width holder and the threading tool are attached to the upper end of the cloth part weir plate, and the cloth part weir board is fixed with a retainer, Attach the base weir plate support on top of the waste concrete, install the base weir plate inside the base weir plate support, then pour the concrete for the base and rising parts, and after the concrete hardens. It consists of removing the top width holder, threading tool and retainer,
Further, the concrete waste form of the third invention for carrying out the concrete waste form frame construction method of the first and second inventions is comprised of a fiber cement board supported by a base weir plate support on top of the waste concrete. A base weir plate, a fabric weir plate made of a fiber cement board that is vertically installed and supported by a fabric weir plate support on the inside of the base weir plate, and a top width holder attached to the upper end of the fabric weir plate. and a threading tool.

<Function> In the first, second and third inventions configured in this way, the base part weir board and cloth part weir board made of fiber cement board are connected to the base part weir board support and the cloth part, respectively. The weir plate support, the top width holder, and the through tool are assembled into the required formwork structure, and first, the base part is backfilled with earth and sand and the base part concrete is poured, or the base part weir plate is assembled. A base weir board is installed inside the support, concrete is poured for the base part, and then, after concrete is poured for the rising part, the base weir board and cloth weir board are used as a waste form. This makes it possible to construct the foundation of a building very easily and in a short period of time without requiring any skill.

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

<Example of implementation> Figures 1 to 5 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
A base weir plate 11 made of a fiber cement board is supported by a base weir plate support 12 on top of the waste concrete 2, and another cloth weir plate support 15 is installed inside the base weir plate 11. In some cases, it is mainly composed of a cloth weir plate 14 made of a fiber cement board that is vertically installed and supported, and a top width holder 18 and a passage tool 19 that are attached to the upper end of this cloth weir plate 14. There is.

As shown in the figure, the base weir plate 11 and cloth weir plate 14 are made of materials that are compatible with concrete and have good adhesion to concrete, such as asbestos slate, non-asbestos slate, pulp cement board, etc. Fiber cement boards are preferred, and wood chip boards, calcium silicate boards, etc. can also be used.

First, the base weir plate 1 made of fiber cement board is placed on top of the concrete 2, and an L-shaped base weir plate support 1 made of metal plate material or plastic material as shown in FIG.
2, it is attached and supported on the outside or inside of the base part weir plate support 12.

The base weir plate support 12 is made of a metal plate such as iron or aluminum or a plastic material in an L-shape on the ridge shown in the figure, and is fixed to the concrete 2 with concrete nails 3 or the like. In addition, the base part weir plate support 12 and cloth part weir plate support 15 are made integrally,
It can also be cut and used when necessary.

Similarly, a fiber cement board, for example, is suitable for the cloth weir board 14, and if necessary, a perforated board in which small holes are provided in a fiber cement board can also be used, as shown in FIGS. 1 and 2. On top of the waste concrete 2 and inside the base weir plate 11, another fabric weir plate support 15, an L-shaped passage tool 17, and a fabric weir plate receiving clip 24 (Fig. 5) are used to The beam is installed and supported vertically, and a top width holder 18 and a threading tool 19 are installed at the top.
and are installed. As clearly shown in FIG. 3, the cloth weir plate support 15 for the cloth weir plate 14 is made of a metal plate such as iron or aluminum or a plastic material into an inverted U-shape with leg portions 16. a screw whose top part 16' is formed in a convex shape and which attaches a threading tool 17 for fixing the cloth weir plate;
Alternatively, a hole 16a for a bolt or rivet is provided, and an L-shaped passage tool 17 can be attached to this hole 16a on-site using a screw, bolt, or rivet. However, the method for attaching the L-shaped threading tool 17 is not limited to this, and it may also be attached using a holding clip, or it may be attached on the fabric weir plate support 15 as shown in FIG. 2a. A claw 16b is provided at the L.
6. You may attach a letter-shaped threading tool 17. In addition, the tips of the legs 16 on both sides of the cloth weir plate support 15 are bent at right angles and holes are provided, so that concrete nails 3, etc. can be inserted into the waste concrete 2 as shown in FIG. is fixed by

The top width holder 18 is made of a suitable metal plate or plastic material into the shape shown in FIGS.
As shown in the figure, the claws 26 into which the upper ends of the fabric dam plates 14 are fitted are formed by punching, bending, molding, etc. so as to hold the fabric dam plates 14 vertically and parallel to each other at intervals. It is provided by adhesion, welding, etc., and has a top portion 28 formed thereon for attaching the threading tool 19, so that the chino 30 can be hung from the mounting holes 27 on both sides and the restraint 20 can be taken. Further, it is preferable to provide a hole 29 for an anchor bolt in the center of the top width holder 18.

Furthermore, the receiving clip 24 for holding the lower end of the cloth weir plate 14 is made of a suitable metal plate or plastic material and has a flat S-shape as shown in FIG.
4a is locked to the L-shaped passing tool 17, and the other bent part 2
4b, the lower end of the cloth part weir plate 14 is fitted into the cloth part weir plate 14.
It is designed to support.

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

First, assemble the marking 11 reinforcing bars on top of the waste concrete 2, fix the cloth part weir board support tool 5 for the cloth part weir board 14 to the waste concrete 2 with concrete nails 3, and at the same time attach the L-shaped through-holes. 17 with screws, bolts, or rivets, and similarly attach the base weir plate support 12 for the base weir plate 11 to the outside of the fabric weir plate support 15 using concrete nails 3 on top of the waste concrete 2. sticks to.

Next, the lower end of the cloth weir board 14, such as a fiber cement board or a perforated board thereof, is hooked to an L-shaped threading tool 17 attached to the top 16° of the cloth weir board support 15. Holder clip 2
At the same time, a top width holder 1 is fitted onto the upper end of the cloth part weir plate 14 to hold it vertically by fitting it into the cloth part weir plate 14 and holding it fixedly.
8 to attach and hold the canvas part weir plates 14 approximately parallel to each other at intervals.Next, a through tool 19 is attached to the groove part 28 of the top width holder 18 to further strengthen it. thus,
Once the cloth weir plate 14 is installed, the top width holder 18
The braces 20 are taken by suspending and tensioning the chenos 30 on both sides, and the cloth weir plate 14 is firmly fixed.

Next, the base weir plate 11 is installed on the outside or inside of the base weir plate support 12. In this case, base part weir plate 1
1 on the outside of the base weir plate support 12,
After installing the base weir plate 11, it is preferable to backfill a portion of the base with earth and sand 5a to firmly fix the base weir plate 11.

Further, when the base weir plate 11 is installed inside the base weir plate support 12, backfilling of the base portion with earth and sand is omitted.

In addition, if necessary, R1! A member can be provided.

Once the concrete waste form 10 of the present invention is constructed in this manner, first the concrete 1a for the base part is poured, and after a while, the concrete 1b for the fabric part, that is, the rising part, is poured. Once established, the foundation will be built.

In this way, once the concrete 1a and 1b has been poured and the concrete has hardened, remove the chino 30 of the retainer 20, the threading tool 19, and the top width holder 18, and remove the base part weir plate 11 and cloth part weir plate 14. If one is left as it is and the remaining earth and sand 5b is backfilled, or if the base weir plate 11 is installed inside the base weir plate support 12, the earth and sand 5a, 5
By simply backfilling b, the foundation of the building can be constructed very easily and in a short period of time without requiring any skill, and the construction can be carried out economically and practically without requiring the same amount of time and effort.

Further, if necessary, mortar finishing can be applied from the outside of the cloth weir plate 14. Furthermore, the removed top width holder 18, chino 3o, and threading tool 19 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 board is fixedly supported using the base weir board support, and the cloth part weir board is fixedly supported using another cloth. A strong foundation can be easily constructed in a short period of time by assembling and configuring the required formwork with fixed support using the weir plate support and top width holder, and pouring concrete into this formwork. , no equivalent special skill is required,
In particular, since it is possible to use materials that are compatible with concrete, such as fiber cement boards, for weir boards and to integrate them with concrete, it is possible to construct foundations economically and inexpensively without spending much time and effort. Effects can be obtained.

[Brief explanation of drawings]

Fig. 1 is a sectional view showing a waste form constructed by the concrete waste form frame construction method of the present invention, and Fig. 2 is an enlarged partial view of the cloth part weir plate support showing support for the lower end of the cloth part weir board. , Fig. 2a is an enlarged partial view showing another method for attaching the threading tool to the fabric weir plate support, Fig. 3 is a perspective view of the fabric weir plate support, and Fig. 4 is the top width holder. Figure 5 is a perspective view of a receiving clip that receives and supports the lower end of the cloth weir plate.
: Concrete, 2: Waste concrete, 3: Concrete nails, 5a, 5b: Earth and sand, 10: Concrete waste form,
11: Base part weir plate, 12: Base part weir plate support, 14
．． Nunobe weir plate, 15/Nunobe weir plate support, 16 Legs, 17
: L-shaped threading tool, 18: Top width holder, 19, threading tool, 20: Retainer, 24: Receiving clip, 24, a, 24b
: Bent part, 26: Claw, 27: Mounting hole, 28/Groove part, 30
：Che patent applicant…Ryo Gas Chemical Co., Ltd. Same as above Company A
Patent Attorney Patent Attorney So Wa Do Teru Figure 1 Figure 2 Figure 20 Figure 3 Ka 4 Figure 5

Claims (3)

[Claims] (1) Install the cloth weir board upright on top of the waste concrete using the cloth weir board support, attach the top width holder and threading tool to the upper end of the cloth weir board, and attach the cloth with the retainer. At the same time as fixing the base weir plate, attach the base weir plate support on top of the waste concrete, install the base weir plate outside of this base weir plate support, and first backfill the base with earth and sand. concrete for the base part, then concrete for the rising part, and after the concrete has hardened, the top width retainer, the through tool, and the retainer are removed. Discarded formwork method. (2) Install the cloth weir plate upright on top of the waste concrete using the cloth weir plate support, attach the top width holder and the threading tool to the upper end of the cloth weir plate, and hold the cloth weir plate with a retainer. While fixing the board, attach the base weir plate support on top of the waste concrete, install the base weir plate inside the base weir plate support, and then pour concrete for the base and rising parts. A concrete waste form construction method comprising the steps of: removing the top width holder, the threading tool, and the retainer after the concrete has hardened. (3) A base weir plate consisting of a fiber cement board supported by a base weir plate support on top of the concrete, and installed and supported almost vertically on the inside of the base weir plate by a cloth weir plate support. A concrete waste form comprising a cloth weir board made of fiber cement board, a top width holder and a threading tool attached to the upper end of the cloth weir board.