JPH06173277A - Construction method for continuous footing - Google Patents

Abstract

PURPOSE:To dispense with a skilled workman besides being suited to shorten a construction period. CONSTITUTION:Each wide base 1 with an assembling groove 5 provided at the width center of the upper face, and each long beam 3 with a reinforcement placing groove 13 are respectively concrete-formed in a factory and carried into a construction site. The bases 1 are installed on the stone consolidation 22 of a cut ditch 21 dug in the ground, and mortar is filled in the assembling grooves 5. With the lower ends submerged in the mortar, the long beams 3 are erected on the bases 1 for assembling. At this assembling time, the long beam ends are shifted from the base ends. Reinforcements 11 are then accommodated into the reinforcement placing grooves 13, and mortar is filled also into the reinforcement placing grooves 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a concrete cloth foundation for housing construction.

[0002]

2. Description of the Related Art When building a house, a cloth foundation for receiving the base of the house is constructed of concrete. To give an example of the sequence, first, a groove is dug in the ground (root cutting), cobblestone and gravel are spread in the groove (warikyu ware), and concrete is laid on it (discarding work). The base as the foundation of the cloth beam is formed on this waste container.

Regarding the formation of the base, after disposing the base reinforcement, the base formwork is assembled and the base concrete is poured. After finishing curing this base concrete,
A cloth beam is formed on it.

Regarding the construction of the cloth beam, after the cloth beam reinforcement is arranged, the cloth form is assembled and the cloth concrete is poured. After curing this concrete, remove the formwork,
It will be cleaned up.

[0005]

As described above, according to the conventional cloth foundation construction method, not only many steps are required, but also it takes a lot of days to cure the concrete and it depends on the weather. Therefore, it usually takes at least two weeks to complete the construction, and the work is difficult, which causes the construction period to be delayed.

Regarding the contents of the work, both reinforcing bar work and formwork work are required, and skillful techniques are required, and concrete pouring is a dirty work. This is the current situation in which it is very difficult to secure skilled workers because young people dislike this.

The present invention has been made in view of the above circumstances.
The purpose of the present invention is not only to shorten the construction period, but also to provide a cloth foundation construction method that does not require a skilled craftsman.

[0008]

According to a first aspect of the invention for achieving the above object, a wide base having an assembling groove at the center of the width of the upper surface and a reinforcing bar groove at the upper surface is provided. Cloth beams,
The concrete is molded in each factory, brought to the site, and the base is installed on the stone solidification of the root cutting groove excavated in the ground. Assemble the fabric beam upright on top of it, and at that time, the fabric beam end is displaced from the base end.Furthermore, insert the through bars in the reinforcement grooves and fill the reinforcement grooves with mortar. It is characterized by

A second aspect of the present invention is to provide a wide base having an assembling groove at the center of the width of the upper surface, and a cloth beam having vertical connecting bars with horizontal lateral bars protruding at both left and right ends in concrete at a factory. Mold it, bring it to the site, install the base on the stone solidification of the root cutting groove dug in the ground, fill the assembly groove with mortar, immerse the lower end in the mortar and cloth on the base. Assembling the beam by standing it up, and at that time, the fabric beam end is displaced from the base end, and a space is provided between the adjacent fabric beams, and the connecting bar is tightly connected between the adjacent fabric beams, and then the concrete The feature is that a complementary cloth beam is formed by striking.

[0010]

[Operation] Since the base and the cloth beam, which are the main concrete parts of the cloth foundation, are molded in the factory, it is possible to completely omit the work of assembling the formwork and concrete casting at the site. Or, even if the work is done, it becomes a little. Then, based on the equalization of the stone hardening of the root cutting groove, the base and the cloth beam on it can be evenly arranged, and the connection between the base and the cloth beam can be adjusted through the mortar in the assembly groove. It is possible to stabilize (height, position, standing state, etc.) as well as the binding state.

In the first aspect of the invention, the equalization is reinforced by the through-holes in the reinforcement groove, and in the second aspect of the invention, it is reinforced by the connection of the connecting bar and the forming of the complementary cloth beam.

[0012]

Embodiments of the present invention will now be described with reference to the drawings.

According to the present invention, the cloth foundation P is constructed by separately molding the base 1 and the cloth beam 3 from concrete in a factory, transporting them to the site, and assembling them on site.

FIGS. 1 to 3 show one embodiment, in which a base 1 has a rectangular cross section with a wide width, an assembling groove 5 is provided at the center of the width of the upper surface, and an internal warp is formed inside. 7 and wefts 9 are provided. The assembling groove 5 has a width slightly wider than the width of the cloth beam 3 and is formed shallowly.

The cloth beam 3 has a rectangular shape with a high cross section, and is provided with a reinforcing bar groove 13 for accommodating the through bar 11 at the center of the width of the upper surface.
In addition, a vertical streak 15 and a horizontal streak 17 are provided inside.
Although the reinforcing bar grooves 13 are provided over the entire length, they may be provided only at both ends.

Regarding the planar shape of the base 1 and the cloth beam 3, the most rectangular shape is used, and an L-shaped corner portion, a T-shaped portion between them, an internal cross shape, or the like is used. In addition, as the cloth beams 3, those provided with an underfloor ventilation hole 19 are also prepared. Although the underfloor ventilation hole 19 is formed in the window hole in the drawing (FIG. 1), it may be formed in a notch shape that opens upward or sideways.

Regarding the work procedure at the site, first,
Along the place where the cloth foundation P is constructed, root cutting is performed as excavation work on the ground, stones such as chestnut stones, boulders, and gravel are laid on the bottom of the root cutting groove 21, and the stones are solidified 22 by compacting them evenly. None, then pour the discarded concrete 25 and place the base 1 on it.

Since the arrangement of the base 1 requires averaging, it is essential to level the waste concrete 25 horizontally as a means for this, but if the base 1 is placed before the waste concrete 25 solidifies, The height can be adjusted with the base 1.

Since the strength of the cloth foundation P varies depending on the type and use of the building, the strength of the ground, and the like,
Depending on the conditions, unlike the above, the base 1 may be placed directly on the stone slab 22 and then discarded concrete may be poured. In addition, in the case of a simple construction house on the construction site, the discarded concrete may be omitted.

After the base 1 is installed, the cloth beam 3 is erected on the base 1. At this time, both ends, that is, the joint portion of the bases 1 and 1 and the joint portion of the cloth beams 3 and 3. In order that they do not coincide with each other, they are shifted by a half pitch as shown in FIG. In the drawing, the base 1 and the cloth beam 3 at the ends such as corners are formed with different lengths so that they are displaced by a half pitch (see FIG. 1).
reference).

The base 1 is filled with mortar 27 in the assembling groove 5 for dropping the cloth beam 3, and the height, position and standing state of the cloth beam 3 can be adjusted also by the mortar 27. Further, as a result, the connection between the base 1 and the cloth beam 3 becomes tight and stable.

After arranging the cloth beams 3, the reinforcing bar groove 1 above them is arranged.
Put the streaks 11 through 3, and stuff the mortar 29. As a result, the horizontal connection of the cloth beams 3 and 3 is ensured and stabilized. By coating this mortar 29 higher than the bar arrangement groove 13,
The uniformity of the upper surface of the cloth foundation P can be made more accurate.

FIGS. 4 and 5 show another embodiment of the cloth beam 3, in which the upper and lower horizontal streaks 1 are provided at both ends of the cloth beam 3.
7, 17 are projected as connecting muscles 17a, 17a. In this case, a space is provided between the adjacent cloth beams 3 and 3 for connecting the connecting bars 17a and 17a, and the complementary cloth beam 3a is formed between them by concrete pouring.

At the forming position of the complementary cloth beam 3a, the vertical streaks 15a are arranged in advance, and the left and right connecting streaks 17a, 17 are formed.
"a" is tightly bound with metal bars and the like, and is subjected to star wrap. After that, a concrete form is assembled between the left and right cloth beams 3, 3 for concrete pouring. However, the reinforcing bar work is only a short period of time, and since the cloth beam 3 serves as a support for the formwork, it becomes extremely simple as compared with the ordinary formwork.

Regarding the work at the site, it is possible to shorten the construction period by one week or more in the first embodiment (FIGS. 1 to 3) and about 4 to 5 days in the other embodiments (FIGS. 4 and 5). Is.

[0026]

As described above, according to the present invention, there are the following excellent effects.

On the site, is it possible to completely omit the work of assembling the formwork and concrete casting?
Alternatively, since the amount of work is small, not only the work requiring such days is eliminated, but also the construction is hardly affected by the weather, so that the construction period can be greatly shortened. Moreover, not only is it suitable for labor saving, but also a skilled craftsman is not necessarily required, so that a labor shortage can be solved. Moreover, factory production can ensure the quality and dimensional stability of the fabric foundation.

The connection between the base and the cloth beam is stabilized through the mortar in the assembling groove, and the interposition of the mortar is suitable for the uniform and accurate arrangement of the cloth beams, and the uniformity and accuracy thereof are It is reinforced and held by the connection by the reinforcing bar.

[Brief description of drawings]

FIG. 1 is an explanatory view of a perspective cross section showing a work procedure at a site.

FIG. 2 is a front sectional view showing an assembled state of the cloth foundation according to the embodiment.

FIG. 3 is an enlarged sectional view taken along the line AA of FIG.

FIG. 4 is a perspective view of a cloth beam according to another embodiment.

FIG. 5 is a front sectional view showing an assembled state of the cloth foundation according to the embodiment.

[Explanation of symbols]

 P cloth foundation 1 base 3 cloth beam 3a complementary cloth beam 5 assembling groove 11 through bar 13 bar arrangement groove 17 lateral bar 17a connecting bar 21 root cutting groove 22 stone hardening 27 mortar 29 mortar

Claims (2)

[Claims] 1. A wide base having a mounting groove at the center of the width of the upper surface and a cloth beam having a reinforcing groove on the upper surface are concrete-molded in a factory, respectively, and brought to the site to be ground. After installing the base on the stone solidification of the root cutting groove dug in, mortar is packed in the assembly groove, the lower end is immersed in the mortar and the cloth beam is erected on the base to assemble it, In this case, a method of constructing a cloth foundation is characterized in that the cloth beam end is displaced from the base end, and further, a through bar is inserted into the reinforcing bar groove and the mortar is filled in the reinforcing bar groove. 2. A wide type base having an assembling groove at the center of the width of the upper surface and a cloth beam having vertical connecting bars with horizontal horizontal bars protruding at the left and right ends are concrete-molded at the factory, After installing the base on the stone solidification of the root cutting groove dug in the ground, stuff the mortar in the assembly groove, immerse the lower end in the mortar, and erect the cloth beam on the base. The fabric beam end is displaced from the base end at the same time, and a space is provided between the adjacent fabric beams. A method for constructing a cloth foundation, which comprises forming a beam.