JPH10252076A - Continuous footing for house, and form and method for constructing fence - Google Patents

Abstract

PROBLEM TO BE SOLVED: To Provide a house foundation or fence constructing method that allows easy construction work, provides excellent strength, and requires no finishing processes. SOLUTION: Permanent forms A for straight lines, permanent forms B for corners, and permanent forms C for T-shapes are prepared using an appropriate material, each of the forms A, B, C having therein a space for storing reinforcement and for injecting grout and provided at its bottom with a flexible sheet 7; the forms A, B, C are installed on the ground and a level adjustment means is controlled to level them. Next, grout is injected to construct a continuous footing such that the permanent forms directly serve as finished surfaces.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a construction form and a construction method for a cloth foundation for a house, a fence for an external structure, and the like.

[0002]

2. Description of the Related Art Conventionally, a construction process for a cloth base for a house or a fence for a house is carried out by digging a ground, solidifying a foundation with a grit stone, then pouring abandoned concrete, and then placing it on the ground. Set the formwork, install rebar inside, then cast concrete into the formwork, dismantle and carry out the formwork after the concrete has solidified, and complete the completed fabric foundation, exterior fence, etc. Was completed.

In addition to the above-described construction by casting concrete in place, there has been proposed a construction method of a fabric foundation method or a fence in which PC concrete produced in a factory is carried into the site and assembled.

[0004]

The former method of cast-in-place involves a large number of processes from digging to completion.
Not only does it take time and effort to complete the work, but the finish is not complete, and the upper surface of the foundation must be refinished for leveling, resulting in high costs for cleaning and transporting the formwork.

[0005] Further, due to a shortage of engineers who assemble the formwork, for example, there is an error in the pitch of the bolts for fixing the base material, or the direction of the bolts is bent, and the quality of the finished foundation varies. There is also a problem that the correction takes time and effort.

In the latter method, the PC concrete is heavy in weight, requires heavy equipment at the time of construction, the work efficiency at the time of construction is low, the transportation cost and the construction cost are high, and the PC concrete is used. At present, there is a problem with the strength of the connection part, and it has not been widely used.

Therefore, an object of the present invention is to solve the problems by making use of the advantages of the above-mentioned conventional cast-in-place method and PC method, and the transportation cost and construction cost are low, and the quality and strength are reduced. The object of the present invention is to provide a construction formwork and a construction method for a cloth base or a fence for a house, which can construct a superior cloth foundation or a fence, etc., and has a short construction period and does not vary in quality due to the quality of workers. .

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a first aspect of the present invention is to provide a disposal mold in which a space for accommodating a reinforcing bar is formed between opposing surfaces and a concrete or the like is formed. Composed with a flexible sheet that is provided between the lower ends of the formwork and holds the concrete poured into the formwork and fits the shape of the ground. This is a configuration in which means are provided.

A second aspect of the present invention, in the first aspect of the invention, adopts a configuration in which the disposal mold has a cross-sectional structure in which the side walls and the upper wall on both sides are integrated.

According to a third aspect of the present invention, in the first aspect of the present invention, the waste form is composed of side walls and an upper wall on both sides, and the form is divided into a plurality of parts at the upper wall, and assembled by coupling means. Is adopted.

According to a fourth aspect of the present invention, in the first aspect of the present invention, the discarding form includes an outwardly projecting portion at the lower end portion of each of the side walls, and the level adjusting means is mounted on the projecting portion. ,
The level adjusting means comprises a combination of a spring and a bolt for supporting the form in a state of floating above the ground, and adopts a configuration in which the level is adjusted by adjusting the bolt.

According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, the discarded formwork has side walls and an upper wall on both sides, and a base material or a fence fixing bracket is provided on the upper surface of the upper wall. The fixing bolts and the inserts for use are installed upright so as to be combined with the concrete cast in the formwork.

According to a sixth aspect of the present invention, in the invention according to any one of the first to fifth aspects, a projection is provided on the inner side of the wall of the form to facilitate integration with the mortar or concrete to be poured. It has been adopted.

According to a seventh aspect of the present invention, in the first aspect of the present invention, an adhesive having good adhesiveness to mortar or concrete to be poured is applied to the inside of the wall of the formwork. Is adopted.

According to an eighth aspect of the present invention, there is provided the construction formwork according to any one of the first to seventh aspects, wherein the formwork installed on the ground is level-adjusted by a level adjustment means, and then the inside of the formwork is adjusted. Mortar or concrete, press fit the flexible sheet to the ground with filled mortar or concrete,
In addition to supporting the load on the entire ground, a configuration is adopted in which the mortar or concrete that has been press-fitted is integrated with the formwork and the formwork is used as it is as a surface finishing material.

According to a ninth aspect of the present invention, there is provided the construction formwork according to any one of the first to seventh aspects, wherein a reinforcing bar is incorporated into the formwork installed on the ground, and the formwork is leveled by a level adjusting means. After the adjustment, press the mortar or concrete into the formwork, fit the flexible sheet to the ground with the filled mortar or concrete, support the load on the whole ground, and press the mortar or concrete with the formwork. And using the formwork as a surface finishing material as it is.

A tenth aspect of the present invention is the invention according to the ninth aspect, wherein a configuration is adopted in which the reinforcing bars incorporated in the formwork are tensioned after the mortar or concrete is solidified to increase the strength.

According to an eleventh aspect of the present invention, in the invention according to any one of the eighth to tenth aspects, the strip-shaped iron plate set on the ground is fixed by driving a set pin for temporary fixing, and the ground is placed on the strip-shaped iron plate. In this embodiment, a configuration is adopted in which a mold is installed on the steel sheet and the level of the mold is adjusted at the strip-shaped iron plate.

According to a twelfth aspect of the present invention, in the invention according to any one of the eighth to eleventh aspects, adjacent ends of the formwork and the flexible sheet installed on the ground are connected with an adhesive tape, and mortar or concrete is provided. The configuration adopts a configuration for preventing the leakage of water.

According to a thirteenth aspect of the present invention, in the invention according to any one of the eighth to twelfth aspects, the size of the footing is adjusted to the ground strength by appropriately selecting the size of the flexible sheet. The configuration is adopted.

According to a fourteenth aspect of the present invention, in the invention according to any one of the eighth to thirteenth aspects, using the construction formwork according to the first, fourth, sixth or seventh aspect having an open upper surface, concrete is reduced to a certain height. After the concrete is solidified, the leveling agent is poured and the top surface is finished horizontally. This leveling agent is made of a viscous liquid substance. If poured, the surface always solidifies while maintaining the horizontal state, and is used to accurately maintain the horizontal level of the upper surface. .

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to an illustrated example of a fabric base for a house.

FIG. 1 shows an example of a two-dimensional arrangement of a working formwork of a cloth foundation for a house, between a straight formwork A, a corner formwork B bent at right angles and a straight formwork A. The disposed T-shaped formwork C constitutes the construction formwork of the cloth foundation.

FIGS. 2 to 5 show a first embodiment of the construction formwork. FIG. 2 shows a form A for a straight line, FIG. 4 shows a form B for a corner, and FIG. C is illustrated.

In each of these molds, opposing side walls 1, 1 on both sides and an upper wall 2 are integrated, and a projecting portion 3 protruding outward is provided at the lower end of both side walls 1, 1. The space between the walls 1 and 1 is a space into which a grout material such as concrete or mortar is injected by incorporating a reinforcing bar.

The upper wall 2 is provided with a through hole 4 for embedding and fixing a rectangular material fixing bolt such as a base in a protruding shape, and a grout material inlet 5 at an upper position of the side wall 1. A level adjusting means 6 is attached to 3 and a flexible sheet 7 which holds the grout material poured into the mold and fits the shape of the ground is attached to a lower portion between the overhang portions 3. .

The above-mentioned formwork is manufactured using GRC, FRP, paper, cement molded board, metal, synthetic resin, synthetic fiber, cloth, gypsum, wood, particle board, styrofoam, etc. As long as it can fit the concrete and can hold the poured concrete, any material such as synthetic resin, cloth, paper, etc. may be selected. As shown in FIG. It is fixed to the part 3 by means such as adhesion or the like, and has a bag shape at the lower part of the formwork.

As shown in FIG. 3, the level adjusting means 6 includes a bolt 8 screwed so as to penetrate the overhang 3 vertically and a U-shaped leaf spring 9 mounted on the lower surface of the overhang 3. When the formwork is installed on the ground, the formwork is elastically supported by a leaf spring 9 and the height of the formwork can be adjusted by rotating the bolt 8.

The leaf spring 9 need not be limited to the arrangement shown in the figure, and may be arranged with its bent portion facing inward as long as it does not interfere with a reinforcing bar or the like provided inside the formwork. Further, a coil spring may be used in place of the leaf spring 9, and the bolt 6 may be inserted through the coil spring.

A strip-shaped iron plate 10 is laid on the ground on which the formwork is installed, at a position directly below the level adjusting means 6, and the strip-shaped iron plate 10 is fixed to the ground by driving a set pin 11 for temporary fixing. Is done.

FIG. 6 shows a second embodiment of the formwork in which a downward bent portion 12 is provided at the end of the overhang portion 3 in the first embodiment described above. The seat 7 is attached between the lower ends.

The grout material inlet 5 is provided on the upper wall 2; however, the position of the grout material inlet 5 is not limited in each embodiment, and the position of the grout material inlet 5 depends on the use situation and the convenience of operation. It can be provided at an appropriate position such as the upper position of the side wall 1 as in the embodiment.

In the case of the drawing, a straight-line disposal form A is exemplified, but a similar structure can be adopted for a corner or T-type disposal form, and the same applies to the following embodiments.

The formwork of the third embodiment shown in FIG. 7 is divided into two sides and has an open upper surface.
And a projecting portion 3 provided at the lower end of both side walls 1, and both side walls 1 are connected by a plurality of spacing rods 13.

When using the formwork of the third embodiment, concrete is poured to a certain height from the open upper surface, and after the concrete is solidified, a leveling agent is poured into the mold so that the exactly horizontal level is obtained. If it is made, it can be constructed at a lower cost compared to a skilled plasterer making a heaven.

The mold according to the fourth embodiment shown in FIG. 8 has a projection 14 provided on the inner side of the mold of the side wall 1, and the tip of the projection 14 is wider than the base. It has a trapezoidal cross section and serves as an anchor inside the concrete after the concrete poured into the form has solidified. It facilitates the integration of the formwork and concrete.

The shape of the projection 14 is not limited to the illustrated one, but may be formed as a ridge-shaped projection that is continuous horizontally and vertically.

The mold of the fifth embodiment shown in FIG. 9 has an adhesive 15 applied to the inner side of the mold of the side wall 1, and this adhesive has good adhesion to concrete or mortar. By using, the adhesiveness with the mold after solidification of the concrete is improved.

The formwork of the sixth embodiment shown in FIG. 10 is another example of a two-part type, and the upper ends of the side walls 1 and 1 on both sides are provided.
Upper wall 2 that overlaps the step on the opposite surface of the tip
a, 2b, the upper walls 2a, 2b are connected by a metal fitting 16 by bolts, and a reinforcing bar 17 inserted from between opposing surfaces of the side walls 1, 1 to a lower portion of the overhang portion 3.
Is fixed to the side wall 1 via the support 18, and a rectangular material fixing bolt 19 projecting above the formwork is fixed on the reinforcing bar 17.

On the other hand, the upper wall 2a is provided with a hole 20 for checking the grout material and for venting the air during injection.

Next, a method of constructing a residential fabric foundation will be described with reference to FIGS.

As shown in FIG. 11, on the ground on which the cloth foundation is to be constructed, a straight-side disposal form A, a corner disposal form B, and a T-type disposal form C are arranged according to the shape of the cloth foundation. A strip-shaped iron plate 10 is previously installed under each mold.

In each of the molds A, B, and C, a reinforcing bar 17 is incorporated in advance, and the level adjusting means 6 is operated to adjust the upper surface to the same height. 7 are connected by a sealing tape 21.

The use of the connection by using the sealing tape 21 has an advantage that the mold can be easily cut into a desired length and the entire mold can be easily formed into an arbitrary shape.

In this state, when grouting material such as non-shrinkage concrete is poured into each of the discarded forms A, B, and C from the filling port 5, the grouting material flowing into the sheet 7 expands the sheet 7, and the lower surface thereof By following the shape of the ground,
The weight of the fabric base can be stably supported on the ground.

By solidifying the grout material injected into the mold, the mold and the grout material are combined and integrated, a continuous cloth foundation can be constructed, and the discarded molds A, B, and C become finished surfaces as they are, and the surface finishing work is performed. Becomes unnecessary.

In the construction of the above-mentioned cloth foundation, adjacent discarding forms A, B and C may be joined by providing a flange at an end of the form and fastening the flange with a bolt. In addition to the above, a PC steel wire may be inserted separately from the mesh reinforcing steel into a form lined in series, and after solidification of the grout material, the PC steel wire may be tightened and fixed to increase the strength of the cloth foundation. .

Although the embodiment of the method of constructing a fabric base for a house has been described above, the construction of an outer fence can be carried out by using the same construction form and the same construction method as in the above embodiment. I can do it.

[0049]

In the case of the conventional method, the concrete is cast first, and after a few days it is solidified, the formwork is assembled and the concrete of the fabric base is cast, so that the construction period can be shortened. Although it was not possible, the construction method using the formwork of the present invention or the construction method of the present invention enables the construction of the cloth foundation on the cobblestone foundation at one time, so that the construction period can be significantly reduced.

The discarded formwork is lightweight and can be transported freely by workers, so that the freight cost is low, the construction period is short, there is no variation in quality due to the quality of workers, and the formwork is not dismantled and returned. This eliminates the need for transportation costs and saves time and labor, and also does not require a separate surface finish, so that a beautifully finished cloth foundation can be constructed.

Further, the level adjustment means can accurately set the level of the cloth base, and the grout hardens along the shape of the ground through the sheet even if the ground has irregularities.
All of the load can be received on the ground, and the entire fabric base is integrated instead of the individual unit configuration as in the case of the PC foundation. It can make use of the good aspects of the conventional method.

Further, since the size of the footing can be easily adjusted according to the durability of the ground, the design of the economical fabric foundation can be freely performed.

Further, if necessary, the strength can be improved by introducing a prestress using a PC steel wire, the cross-section of the grout material can be made thinner, which is economical, and the safety in the event of an earthquake can be improved.

[Brief description of the drawings]

FIG. 1 is a plan view showing an arrangement state of a disposal mold.

FIG. 2 is a perspective view of a straight form discarding formwork according to the first embodiment of the construction formwork.

FIG. 3 is a vertical cross-sectional view showing a part of a level adjusting unit according to the first embodiment;

FIG. 4 is a perspective view of a corner forming frame.

FIG. 5 is a perspective view of a T-shaped discarding formwork.

FIG. 6 is a perspective view of a straight discarding formwork according to a second embodiment of the working formwork.

FIG. 7 is a perspective view of a straight form discarding formwork according to a third embodiment of the working formwork.

FIG. 8 is an internal cross-sectional view of a formwork according to a fourth embodiment of the working formwork.

FIG. 9 is an internal cross-sectional view of a formwork according to a fifth embodiment of the working formwork.

FIG. 10 is a perspective view of a straight form discarding formwork according to a sixth embodiment of the working formwork.

FIG. 11 is a perspective view showing an arrangement state of a disposal formwork using the same.

[Explanation of symbols]

 Reference Signs List A Disposable form for straight line B Disposable form for corner C T-type disposable form 1 Side wall 2 Upper wall 3 Overhang 5 Grout material inlet 6 Level adjusting means 7 Flexible sheet 8 Bolt 9 Leaf spring 14 Projection 15 Adhesive 17 Rebar

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Katsuya Hiraoka 346, Odate Nakadate, Shimodate-shi, Ibaraki Pref.

Claims (14)

[Claims] 1. A disposable formwork which forms a space for accommodating concrete or the like by accommodating a reinforcing bar between opposing surfaces, and a concrete provided between the lower ends of the formwork and cast into the formwork. A construction form for a cloth base or fence for a house, comprising a combination with a flexible sheet to be held and fitted to the shape of the ground, wherein a level adjusting means is provided at a lower portion of the disposal form. 2. The construction form for a residential fabric foundation or fence according to claim 1, wherein the disposal form has a cross-sectional structure in which the side walls and the upper wall on both sides are integrated. 3. The cloth for housing according to claim 1, wherein the disposal form comprises a side wall and an upper wall on both sides, and the form is divided into a plurality of parts at the upper wall portion and assembled by connecting means. Construction formwork for foundation or fence. 4. The waste form has a projecting portion projecting outward at lower ends of both side walls, and level adjusting means is mounted on the projecting portion, and the level adjusting means places the form on the ground. The construction form for a residential fabric foundation or fence according to claim 1, comprising a combination of a spring and a bolt supported in a floating state, wherein the level is adjusted by adjusting the bolt. 5. A disposal mold comprising side walls and an upper wall on both sides,
5. An anchoring bolt or insert, such as a base material or a fence fixing metal fitting, is erected on the upper surface of the upper wall so as to be combined with concrete cast into the formwork.
A construction formwork for a fabric base or fence for a house according to any one of the above. 6. The construction formwork for a residential fabric foundation or fence according to claim 1, wherein a protrusion is provided inside the wall surface of the formwork so as to be easily integrated with the mortar or concrete to be poured. . 7. The construction mold for a residential fabric foundation or fence according to claim 1, wherein an adhesive having good adhesiveness to mortar or concrete to be poured is applied to the inside of the wall surface of the formwork. frame. 8. A mortar or concrete is press-fitted into the formwork after using the construction formwork according to any one of claims 1 to 7 to adjust the level of the formwork set on the ground by a level adjusting means. Fit the flexible sheet to the ground with filled mortar or concrete to support the load on the whole ground, and integrate the press-fitted mortar or concrete with the formwork to finish the formwork as it is Construction method of house cloth foundation or fence used as material. 9. After using the construction formwork according to claim 1 to incorporate a reinforcing bar into a formwork set on the ground and performing level adjustment of the formwork by level adjusting means,
Pressing mortar or concrete into the formwork, fitting the flexible sheet to the ground with the filled mortar or concrete, supporting the load on the whole ground, integrating the press-fitted mortar or concrete with the formwork A method for constructing a residential fabric foundation or fence using the formwork as a surface finishing material. 10. The method according to claim 9, wherein the reinforcement incorporated in the formwork is strengthened by introducing tension after solidifying the mortar or concrete. 11. A strip-shaped iron plate placed on the ground is fixed by driving a set pin for temporary fixing, a formwork is placed on the ground so as to rest on the strip-shaped iron plate, and the level of the formwork is adjusted at the portion of the strip-shaped iron plate. A method for constructing a residential fabric foundation or fence according to any one of claims 8 to 10. 12. The housing cloth according to claim 8, wherein adjacent ends of the formwork and the flexible sheet installed on the ground are connected with an adhesive tape to prevent leakage of mortar or concrete. Construction method of foundation or fence. 13. The housing cloth according to claim 8, wherein the size of the footing is adjusted in accordance with the ground strength by appropriately selecting the size of the flexible sheet. Construction method of foundation or fence. 14. The construction form according to claim 1, 4, 6 or 7, wherein the upper surface is opened, concrete is poured to a certain height, and after the concrete is solidified, a leveling agent is poured to finish the upper surface horizontally. Claims 8 to 1
3. The method for constructing a fabric base or fence for a house according to any one of 3.