JPH04108920A - Concrete foundation form and foundation constructing method - Google Patents

Abstract

PURPOSE:To simplify the work by forming a foundation form to be arranged in a trench into a circular arc cross-section using synthetic resin, providing reinforcing ribs on the surface of the form, and leaving the form in the ground in a buried state as a part of the foundation after curing of concrete. CONSTITUTION:Supporting hardwares 15 provided with an adjusting screw rods 15a and receiving hardwares 16 are placed on cobble stones 9 and gravels in an excavated trench 10, and rising form bodies 4,5 are placed on the receiving hardwares 16. A foundation form 1 made of resin and having a circulararc cross section, and provided with reinforcing ribs on its surface is fixed to the skirt part of the above form bodies. The foundation form 1 is covered with covering earth and soil with its straight, inner corner-outer corner-forms respectively engaged the rising forms 4,5. When the rising forms 4,5 are removed after completion of concrete-curing, the upper end engaging part 1b of the foundation form 1 is removed, and only the foundation form 1 is left in the ground in a state where concrete adheres it. Thus, separation of the foundation form is prevented, and the number of operating processes can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to the structure of a concrete form and a method for constructing a foundation when constructing the foundation of a house using concrete.

(b) Prior Art Conventionally, methods for integrally pouring concrete and foundations have been known.

For example, Japanese Patent Publication No. 57-24.44.6, Publication Utility Model Publication No. 4.584.2/1982, Publication No. 1612-1987,
Publication No. 19072, Utility Model Publication No. 54-19072, Utility Model Publication No. 54-19072
This is similar to the technique described in Japanese Patent No. 4-4.0963.

(C) Problems to be Solved by the Invention However, in the conventional technology, as shown in FIG. Since the frames 32 and 32 were made of iron plates, it was necessary to remove the soil covering inside the root cutting groove and remove the foundation forms 32 and 32 after curing of the concrete was completed. In order to facilitate the removal of concrete and foundation formwork, it was necessary to apply oil to the inner surface of the foundation formwork to facilitate separation.

In addition, the concrete foundation forms 32 and 32 made of iron plates were cast.
In order to prevent the base form from lifting due to 1., a base form holding screw 30 and a base form holding rod 31 were provided.

This is because the foundation forms 32 and 32 are made of iron plates, so they must be removed after the concrete has finished curing, and in order to facilitate the work of removing the foundation forms, it is not possible to cover them with a large amount of soil. This is because it is absolutely necessary to hold down the basic formworks 32 by the basic formwork holding rods 31 and basic formwork holding screws 30. In this way, it was also difficult to remove the basic formwork holding screws 30 and basic formwork holding rods 31.

In addition, since the foundation formwork after concrete curing is intended to be reused, it is necessary to remove the concrete that has arrived, and transporting it to the next housing construction site is also a tedious task. There it was.

The present invention has a structure in which the part of the foundation formwork placed inside this cutting groove is made of a resin plate so that it does not need to be removed even after concrete curing is completed, and the part of the foundation formwork is made of a resin plate. -1.During pouring, the covering soil placed on top of the foundation formwork should be
It is designed so that it can also be used for site leveling.

(d) Means for Solving the Problems The problems to be solved by the present invention are as described above. Next, the means for solving the problems will be explained.

With the rising formworks 4 and 5 placed at the upper center and the foundation formworks 1 and 1 placed on the left and right sides of the hem of the rising formworks 4 and 5,
In the configuration of a convex concrete 1/integral casting frame, the base form 1/1 is constructed of a resin plate having an arcuate surface, and reinforcing ribs are provided along the arcuate surface. .

In addition, a convex concrete casting frame is formed by the rising formworks 4 and 5 placed at the upper center and the foundation formworks 1 and 1 placed on the left and right sides of the hem of the rising formworks 4 and 5. In this method, the foundation formwork 1.1 is constructed of a resin plate having an arcuate surface, reinforcing ribs are provided along the arcuate surface, and the foundation formwork 1.1 is used as the concrete 1 even after concrete curing.・This is a concrete foundation construction method characterized by leaving part of the foundation in the soil.

(B) Embodiment The problems to be solved by the present invention and the means for solving them are as described above. Next, the structure of the embodiment shown in the attached drawings will be explained.

Figure 1 shows concrete 1 in the concrete foundation formwork of the present invention.
Figure 2 is a perspective view of the concrete foundation form of the present invention as seen from the inside, Figure 3 is a perspective view of the same as seen from the outside, and Figure 4 is a straight foundation form. - Fig. 5 is an enlarged sectional view of the second end locking part 1b of the linear foundation formwork 1, Fig. 6 is a perspective view, Fig. 7 is a side view, and Fig. 8 is an outer corner. A plan view of the foundation formwork 3, FIG. 9 is a 117th view of the inner corner foundation formwork 2.

Concrete 1 and foundation formwork will be explained with reference to FIGS. 1, 2, and 3.

By excavating root cutting trenches 10 in the housing construction site and carrying out the work,
Survey and decide where to build the foundation. A chestnut stone 9 is laid down along the position determined by the method, and then gravel is laid down, and the support fitting 15 is erected on the gravel.

Further, a base reinforcing bar 7 is placed horizontally on the support fitting 15, and a mesh bar 6 is placed upright between the rising formworks 4 and 5.

An adjustment screw rod 15a is erected from the support metal fitting 15, and a receiving metal fitting 16 is arranged on the adjustment screw rod 15a supported by the support metal fitting 15.

The rising formworks 4 and 5 are placed on the receiving metal fitting 16.

With this configuration, the rising formworks 4 and 5 are fixed in accurate positions, so next, the basic formwork of the present invention is attached to this rising formwork 4.
・It is fixed by placing it on the hem of No.5.

Then, in accordance with the shape of the house, the rising formworks 4 and 5 are formed into two formworks 17 and 18. In addition to 1, an inner corner foundation form 2 and an outer corner foundation form 3 are prepared.

Both the inner corner foundation formwork 2 and the outer corner foundation formwork 3 have ribs 2a and 3a.
Also, upper end locking portions 2b and 3b are provided so as to be engaged with and placed on the hems of the outer corner rising formwork 17 and the inner corner rising formwork 18.

The rising formwork 4 and 50 parts are called metal frames and are made of iron plates, so they can be removed after concrete 1 and curing are completed, and the formwork can be used at the next site.

To enable assembly, a connecting U-shaped metal bar 19 is provided with an upper locking rod 20, etc.

These linear foundation formwork 1, inner corner foundation formwork 2, and work equipment are placed on the hems of the vertical formworks 4 and 5, the outer corner vertical formwork 17, and the internal corner vertical formwork 18, respectively. In this state, as shown in FIG. 1, the root cutting trench 10 is backfilled with covering soil 8.

In this case, by covering with soil 8, the linear foundation formwork 1 is moved, so that it does not come off the rising formworks 4 and 5, and so that it does not dent inside. Foundation form 1, inner corner foundation form 2, and outer corner foundation form 3
The cross section is also arcuate, and reinforcing ribs 1a, 2a, and 3a are protruded to improve the strength of the arcuate portion.

In addition, the cost is so low that there is no need to remove the concrete after it has been cured, and if it is mass-produced, the cost will be lower, and even if it is left buried in the ground, it will not have a negative impact on the house. As shown, the straight foundation form 1, the inner corner foundation form 2, and the outer corner foundation form 3 are made of synthetic resin.

The structure is such that stress is concentrated on the upper end locking portion 1b and the lower end locking portion.

With the rising formworks 4 and 5 erected in this way and the straight foundation formwork 1, inner corner foundation formwork 2, and outer corner foundation formwork 3 laid thereon, the inside of the root cutting groove 10 is filled with covering soil 8. This will improve work safety when pouring concrete.

After the concrete 1, pouring and curing are completed, the upper end locking part 1 of the straight foundation form 1 is pulled or bent at the rising formwork 4 and 5.
The part where b is locked can be easily removed, so straight foundation formwork 1
The rising formworks 4 and 5, the outer corner rising formwork 17, and the inner corner rising formwork 18 can be removed while leaving the parts attached to the concrete 1.

Therefore, as in the past, after the curing of the linear foundation form 1 is completed, the covering soil 8 of the root cutting alo is dug up again, the foundation form holding rods 31 and the foundation form holding screws 30 are removed, and the concrete is attached. There is no need to forcibly remove the foundation formwork 32.

FIG. 10 is a perspective view of the linear foundation formwork 11 whose arc shape is square, FIG. 11 is a side sectional view, and FIG. 12 is an enlarged cross-section of the reinforcing ribs lla protruding from the linear foundation form 11. 13 is a perspective view of the outer corner foundation formwork 13 in the case of a square shape, FIG. 14 is a plan view, FIG. 15 is a perspective view of the inner corner foundation form 12, and FIG. 16 is a plan view. It is a diagram.

Upper end locking portions 11b, 12b, and 13b are also formed on these, and reinforcing ribs 11a, 12a, and 13a are provided.

(F) Effects of the Invention Since the present invention is constructed as described above, it has the following effects.

First, since the linear foundation form 1, the inner corner foundation form 2, and the outer corner foundation form 3 are all made of resin molded products, they are easy to transport and complement, and the cost can be reduced. It is.

Secondly, after placing the foundation formwork 1 in the root cutting groove 10, the root cutting groove 10 can be completely covered with soil 8 and the root cutting groove 10 can be filled. The lack of grooves made it safer.

Thirdly, since the soil covering 8 prevents the foundation formwork 1, 1 from coming off and from swelling, there is no need for the conventional foundation formwork retainer +131 and foundation formwork retainer screw 30.

Fourthly, after the concrete 1 to curing, only the standing formworks 4 and 5 can be removed without having to dig up the soil covering 8 again, so the construction period and man-hours can be reduced.

Fifth, there is no need to apply separation oil to the inner surfaces of the foundation formworks 32, 32 as in the past, and the removed foundation formworks 32, 3
Since there is no need to remove the concrete from the inner surface of No. 2, the construction period and man-hours can be reduced.

[Brief explanation of drawings]

Figure 1 is a side sectional view of the concrete 1 of the present invention with concrete poured into the foundation form, Figure 2 is a perspective view of the concrete foundation form of the present invention as seen from inside, and Figure 3 is the same. FIG. 4 is a side view of the linear foundation formwork 1; FIG. 5 is an enlarged sectional view of the upper end locking portion 1b of the linear foundation formwork 1; FIG. 6 is a perspective view of the linear foundation formwork 1; The figure is also a side view,
FIG. 8 is a plan view of the outer corner foundation form 3, FIG. 9 is a plan view of the inner corner foundation form 2, FIG. 10 is a perspective view of the linear foundation form 11 whose arc shape is square, and FIG. Figure 11 is also a side sectional view,
FIG. 12 is an enlarged sectional view of the reinforcing rib Ila protruding from the linear foundation form 11, FIG. 13 is a perspective view of the outer corner foundation form 13 in the case of a square shape, and FIG. 14 is a plan view, 1
FIG. 5 is a perspective view of the inner corner foundation form I2, FIG. 16 is a plan view, and FIG. 17 is a perspective view of the prior art. 1 ・ ・ 1 a ・ 1 b ・ 2 ・ ・ 3 ・ ・ 4.5 8 ・ ・ 10 ・ ... Straight foundation formwork ... Reinforcement rib ... Upper end locking part ... Inner corner Foundation formwork ... Outer corner Foundation formwork...standing formwork...soil covering...root cutting groove

Claims (2)

[Claims] (1) Standing formworks 4 and 5 placed at the upper center, and foundation formworks 1 and 1 placed on the left and right sides of the hem of the rising formworks 4 and 5.
In the structure of a convex concrete casting frame, the base formwork 1, 1 is made of a resin plate having an arcuate surface, and reinforcing ribs are provided along the arcuate surface. Concrete foundation formwork. (2) Standing formworks 4 and 5 placed in the upper center, and foundation formworks 1 and 1 placed on the left and right sides of the hem of the rising formworks 4 and 5.
Accordingly, in the configuration of a convex concrete casting frame, the foundation formwork 1 is made of a resin plate having an arcuate surface, reinforcing ribs are provided along the arcuate surface, and the foundation formwork A concrete foundation construction method characterized by leaving 1.1 in the soil as a part of the concrete foundation even after concrete curing.