JP4610757B2 - Cloth foundation method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fabric foundation method using a precast formwork.
[0002]
[Prior art]
Conventionally, as a fabric foundation method for buildings, the formwork is assembled with plywood and iron plates on both sides of the rising bars that connect the reinforcing bars in the form of a grid, and the concrete is placed inside the formwork to harden the concrete. After that, a method for removing the formwork has been performed.
[0003]
However, the conventional method has a problem in that it takes a lot of labor and labor to assemble and remove the formwork, and it takes time to cure the concrete until it hardens, resulting in a long construction period. Furthermore, as a finishing process, since the trace of the removed formwork remains on the concrete surface, it is necessary to perform a cosmetic finish.
[0004]
[Problems to be solved by the invention]
The present invention provides a fabric foundation method that improves the above-mentioned problems and eliminates the work of assembling and removing the formwork to improve workability at the site.
[0005]
[Means for Solving the Problems]
The fabric foundation method according to claim 1 of the present invention is based on the lower side of the plate-like portion arranged in the vertical direction along one side of the rising muscles constituting the fabric foundation, and the base on the opposite side to the rising muscle side. And forming an outer mold by combining a plurality of precast molds in which nuts are embedded in the inner wall surface into a wall shape, and facing the riser A base part is provided at the lower side of the plate-like part arranged in the vertical direction on the opposite side to the rising streak side, and is integrally molded with concrete in an L-shaped cross section, and opposed to the nut. A plurality of precast molds with bolt insertion holes are combined in a wall shape to form an inner mold, and a cylindrical spacer is provided between the inner and outer molds, and the spacer passes through the bolt insertion holes. bolt And a tip screwed into the nut to connect the inner and outer mold, is characterized in that the solidified integrally by pouring fresh concrete during the inner and outer mold.
[0006]
The cloth foundation method according to claim 2 of the present invention is characterized in that, in claim 1, an uneven portion is formed on the inner surface of the precast mold on the rising line side at the time of mold forming .
[0007]
The cloth foundation method according to claim 3 of the present invention is the cloth foundation method according to claim 1 or 2, wherein a heat insulating layer is integrally formed on one side of the precast mold forming the inner mold of the cloth foundation on the side opposite to the rising line side. It is characterized by.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter an embodiment of the present invention with reference to FIGS. 1 to 6 will be described in detail. In FIG. 1, 1 is an outer formwork, 2 is an inner formwork, and 3 is a rising line constituting the cloth foundation. A plurality of precast molds 4A and 4B are combined in a wall shape along one side of the rising line 3 to form the outer mold 1, and a plurality of precast molds are sandwiched across the rising line 3 so as to face it. The inner mold 2 is formed by combining the frames 5A and 5B in the shape of a wall, and a cylindrical spacer 7 is provided in the gap 6 between the inner and outer molds 1 and 2, and both the inner and outer bolts are formed by bolts 8 penetrating the spacer 7. Forms 1 and 2 are connected.
[0009]
As shown in FIG. 2, the precast mold 4A constituting the outer mold 1 is made of lightweight concrete, and is formed on the lower side of the plate-like portion 10 arranged in the vertical direction so as to be orthogonal to the rising muscle side 3 and on the opposite side. The base portion 11 is provided to be integrally formed into a L-shaped cross section, and the two plate-like portions 10 are combined in a plane L shape. Further, the precast form 4B is formed integrally with a L-shaped cross section by providing a base portion 11 at a lower portion of a plate-like portion 10 arranged in a vertical direction and perpendicular to the base portion 11 on the opposite side of the rising muscle side 3. Nuts 12... Are embedded in the upper part of the inner surface of the plate-like portion 10 of the precast molds 4A and 4B at predetermined intervals in the lateral direction. Furthermore, the engaging step part 13 is formed in the both ends of the plate-shaped part 10 along the vertical direction.
[0010]
Further, the precast mold 5A constituting the inner mold 2 is formed of lightweight concrete as shown in FIG. 3, and is formed on the lower side of the plate-like portion 10 arranged in the vertical direction at the opposite side to the rising muscle side 3 at right angles thereto. The base portion 11 is provided to be integrally formed into a L-shaped cross section, and the two plate-like portions 10 are combined in a plane L shape. The precast form 5B is formed integrally with a L-shaped cross section by providing a base portion 11 on the lower side of the plate-like portion 10 arranged in the vertical direction and orthogonal to the rising muscle side 3 on the opposite side. Bolt insertion holes 14 are opened at predetermined intervals in the lateral direction facing the nuts 12 in the upper portions of the plate-like portions 10 of the precast molds 5A and 5B. Furthermore, the engagement step part 13 is formed in the both ends of the plate-shaped part 10 along the vertical direction.
[0011]
Next, a method for constructing a fabric foundation using the precast molds 4A, 4B, 5A, and 5B having the above configuration will be described. First, as shown in FIG. 4, a groove is dug along the shape of the fabric foundation of the house, and the base reinforcement 17 and the rising reinforcement 3 are combined in a reverse T shape. Concrete 18 is placed on the base 19 to form a base 19. Next, the outer mold 1 is configured by arranging the precast molds 4A and 4B along the protruding rising stripes 3 and alternately combining the engaging step portions 13 at both ends.
[0012]
Further, the inner mold 2 is formed by arranging the precast molds 5A and 5B facing each other and arranging the engaging step portions 13 at both ends alternately. Next, the cylindrical spacer 7 is arranged between the nut 12 attached to the precast molds 4A and 4B and the bolt insertion hole 14 opened in the precast molds 5A and 5B, and the washer 20 is fitted to the bolt 8. Then, the bolt 12 is joined to the nut 12 through the cylindrical spacer 7 through the bolt insertion hole 14, and the outer mold 1 and the inner mold 2 are connected and assembled in the state shown in FIGS.
[0013]
After assembling the mold in this way, the concrete 18 is placed between the outer mold 1 and the inner mold 2 and cured as it is, thereby completing the fabric foundation 16 as shown in FIG.
[0014]
Therefore, according to the present invention, the precast molds 4A, 4B, 5A, and 5B in which the surface portion of the mold is pre-molded are assembled and the concrete 18 is placed there, so that the work of removing the mold is unnecessary. Become. In addition, there is no need for a decorative finish after removing the formwork as in the prior art, and the construction period can be greatly shortened. In addition, the precast molds 4A, 4B, 5A, and 5B are made of lightweight concrete, so are light and easy to carry and assemble.
[0015]
Further, the engaging step portions 13 are formed in opposite directions along the longitudinal direction at both ends of the precast molds 4A, 4B, 5A, and 5B, and these are alternately engaged so that they can be combined in a planar shape. Also, the precast molds 4A and 4B are integrally molded with the nuts 12 pre-embedded, and the bolt insertion holes 14 corresponding to the precast molds 5A and 5B are also opened at the time of molding. Work is easy.
[0016]
FIG. 7 shows another embodiment of the present invention, in which an uneven portion 22 is formed on the inner surface of the plate-like portion 10 of the precast molds 4A, 4B, 5A, and 5B. In this structure, since the concavo-convex portion 22 is formed on the inner surface on which the concrete 18 is placed, the adhesion to the concrete 18 can be strengthened and the strength of the fabric foundation 16 can be improved.
[0017]
FIG. 8 shows another embodiment of the present invention. A concrete nail hole 24 is provided in the base portion 11 of the precast molds 4A and 4B forming the outer mold 1 and a concrete nail 25 is driven therein. And fixed to the concrete base 19. Similarly, in FIG. 9, a concrete nail hole 24 is provided in the base portion 11 of the precast molds 5 </ b> A and 5 </ b> B forming the inner mold 2, and the concrete nail 25 is driven into the hole to be fixed to the concrete base 19. is there.
[0018]
FIG. 10 shows another embodiment of the present invention in which a heat insulating layer 23 such as foamed plastic is formed in advance on one side of the precast molds 5A and 5B constituting the inner mold 2 in advance at the factory. is there. The cloth foundation 16 does not require an on-site blowing operation of foamed plastic, and can improve workability.
[0019]
In the above description, the case where the surfaces of the precast molds 4A and 4B constituting the outer mold 1 are formed in a flat plate shape, but a brick pattern may be formed and colored in a brick color. Further, the spacer 7 is not limited to a cylindrical shape, and may be a rectangular tube shape.
[0020]
【The invention's effect】
As described above, according to the cloth foundation method according to claim 1 of the present invention, the surface portion of the formwork is assembled using the precast formwork previously molded, and concrete is placed there, so that the formwork is removed. Work becomes unnecessary. In addition, there is no need for a decorative finish after removing the formwork as in the prior art, and the construction period can be greatly shortened.
[0021]
Further , since the nut is embedded in the precast mold forming the outer mold and the bolt insertion hole is opened in the precast mold forming the inner mold opposite to the nut, the assembling work is easy.
[0022]
Further, according to the fabric foundation method of claim 2 , since the concave and convex portions are formed on the inner surface of the precast mold frame on the rising line side at the time of molding , the adhesion to the concrete is strengthened and the strength of the fabric foundation is improved. Can be made.
[0023]
Further, according to the cloth foundation method of claim 3 , since the heat insulation layer is integrally formed on one side of the precast formwork constituting the inner formwork of the cloth foundation, there is no need for heat insulation work such as blowing foam plastic on site. Workability can be improved.
[Brief description of the drawings]
FIG. 1 is a perspective view of a fabric foundation according to an embodiment of the present invention.
FIG. 2 is a perspective view showing a precast mold forming an outer mold.
FIG. 3 is a perspective view showing a precast mold forming an inner mold.
FIG. 4 is a sectional view showing a state in which a mold is assembled by the method of the present invention.
FIG. 5 is a cross-sectional view of a mold assembled by the method of the present invention.
FIG. 6 is a cross-sectional view of a fabric foundation assembled by the method of the present invention.
FIG. 7 is a cross-sectional view of a fabric foundation according to another embodiment of the present invention.
FIG. 8 is a perspective view showing another different precast mold of the present invention that constitutes the outer mold.
FIG. 9 is a perspective view showing another different precast mold of the present invention constituting the inner mold.
FIG. 10 is a cross-sectional view of a fabric foundation according to another embodiment of the present invention in which a heat insulating layer is formed.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Outer mold form 2 Inner mold form 3 Standing reinforcement 4A Precast formwork 5A Precast formwork 6 Gap 7 Spacer 8 Bolt 10 Plate-shaped part 11 Base part 12 Nut 13 Engagement step part 14 Bolt insertion hole 16 Cloth foundation 17 Base line 18 Concrete 19 Base 20 Washer 22 Concavity and convexity 23 Heat insulation layer 24 Concrete nail hole 25 Concrete nail

Claims (3)

A base part is provided at the lower side of the plate-like part arranged in the vertical direction along one side of the rising line that constitutes the fabric foundation, and a base part is provided on the opposite side to the rising line side, and is integrally molded with concrete into an L-shaped section. In addition, a plurality of precast molds in which nuts are embedded in the inner wall surface are combined in a wall shape to form an outer mold frame, and the plate-like portion arranged in the vertical direction is sandwiched between the rising streaks and opposed thereto. A plurality of precast molds which are provided with a base portion on the opposite side to the rising muscle side perpendicular to the lower portion, and are integrally molded with concrete in an L-shaped cross section, and a bolt insertion hole is opened facing the nut. the inner mold is formed by combining in a wall shape, a cylindrical spacer disposed between the inner and outer mold, the bolt insertion hole of the tip of the bolt penetrating the spacer is screwed into the nut through and out both By connecting the frame, the fabric foundation method, characterized in that solidified integrally by pouring fresh concrete during the inner and outer mold. The fabric foundation method according to claim 1 , wherein an uneven portion is formed on the inner surface of the precast formwork on the rising muscle side at the time of formwork molding . The fabric foundation method according to claim 1 or 2, wherein a heat insulating layer is integrally formed on one side of the precast mold forming the inner mold of the fabric foundation on the side opposite to the rising line side.

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