JP2002371643A - Termite prevention structure of building, termite prevention method, building therefor and concrete form - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a termite prevention structure of a building, a termite prevention method, the building and a concrete form capable of surely protecting the framework, floor framing or the like from being spoiled by the termite without polluting the environment inside of the building. SOLUTION: The termite prevention structure of the building A is so constituted that the incursion of the termite 5 into an underfloor space 6 passing through a joint 4 between a foundation slab 2 and the circumferential rising section 3 in a mat foundation 1 of the building A and that the inside and the outside of the joint 4 are closed by a termite prevention sheet 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a joint between a foundation slab and an outer peripheral rising portion of a solid foundation of a building, or a joint between a rising portion of a fabric foundation of a building and presser concrete, and penetrates into the underfloor space. Termite structure and method for preventing termites from building
And concrete formwork.

[0002]

2. Description of the Related Art Conventional termite control techniques in buildings include, for example, (1) the ground (soil) under the floor of a building;
A method of treating xylem within 1 m from the ground with chemicals,
(2) A method of laying a synthetic resin sheet kneaded with a chemical on the ground under the floor is known.

[0003]

However, in the above-mentioned conventional example (1), there is a problem such as chemical sensitivity caused by drugs, that is, the environment in the building is contaminated by the chemicals. At the same time, there is a problem that remedy is necessary because the medicinal effect expires in about five years.

[0004] Further, in the conventional example (2), there is a problem that termites may intrude through gaps around the synthetic resin sheet.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has a structure in which a frame or a floor can be reliably protected from termite damage by termites without polluting the environment in the building. It is an object of the present invention to provide a structure and termite protection method, a building thereof, and a concrete formwork.

[0006]

In order to achieve the above object, the termite-preventing structure according to the first aspect of the present invention provides a termite that penetrates into the underfloor space through a joint between a foundation slab and an outer peripheral rising portion in a solid foundation of a building. The termite structure of a building for preventing the occurrence of a seam, wherein the inside or outside of the seam is closed by a termite sheet.

According to a second aspect of the present invention, the termite structure prevents termites from entering the underfloor space through the seam between the rising portion of the fabric foundation of the building and the holding concrete constructed on the ground surrounded by the rising portion. An anti-termite structure for a building to be prevented, wherein the seam is closed by an anti-termite sheet.

According to a third aspect of the present invention, the termite-control sheet has an outer end embedded in the rising portion.

According to a fourth aspect of the present invention, the termite-control sheet is formed by bending an outer end of the termite-control sheet.

In the termite structure, the outer end of the termite sheet is temporarily fixed to the rising portion with an adhesive tape, and the outer end of the termite sheet and the adhesive tape are fixed to the rising portion with a fastening member. It is fixed to.

In the termite structure, the inner end of the termite sheet may be buried in the holding concrete.

According to a seventh aspect of the present invention, the termite-control sheet is formed by bending an inner end of the termite-control sheet.

The termite-controlling structure according to the present invention is such that a termite-control sheet for holding is laid below the holding concrete.

According to a ninth aspect of the present invention, the termite control sheet is laid below the holding concrete, and an outer end of the termite control sheet is attached to the rising portion.

According to a tenth aspect of the present invention, the termites prevent the termites from entering the underfloor space through the seam between the rising portion of the fabric foundation of the building and the holding concrete constructed on the ground surrounded by the rising portion. A termite structure of a building for preventing the termite, wherein the vertical plate of a termite-controlling object extending in the circumferential direction having an L-shaped cross section from a vertical plate and a horizontal plate is fixed to the rising portion; Are embedded in the holding concrete, and the upper end of the termite-control sheet extending in the circumferential direction is attached to the rising portion, and the lower end of the termite-control sheet is attached to the vertical plate.

According to an eleventh aspect of the present invention, a projecting plate is provided at the tip of the horizontal plate so as to extend in the circumferential direction.

According to a twelfth aspect of the present invention, the termite-controlling sheet is formed by extending and contracting folds at predetermined positions of the termite-control sheet along the circumferential direction.

According to a thirteenth aspect of the present invention, the termites prevent the termites from entering the underfloor space through the seam between the rising portion of the fabric foundation of the building and the holding concrete constructed on the ground surrounded by the rising portion. The termite structure of a building for preventing a fire, wherein a lower end of a termite sheet extending in a circumferential direction is embedded in a base portion of the cloth foundation, and an upper end of the termite sheet is embedded in the holding concrete.

According to a fourteenth aspect of the present invention, the termite-control sheet is formed by bending a lower end of the termite-control sheet.

According to a fifteenth aspect of the present invention, the upper part of the termite-control sheet is bent.

[0021] In the termite structure, the termite sheet is made of a durable, corrosion-resistant material that is resistant to the termite secretions and has a Shore hardness of at least about 70.

In the termite structure, the termite sheet may be a mesh sheet having a large number of holes having a linear dimension smaller than a maximum linear dimension of a cross section of the head of the termite in any direction.

According to a eighteenth aspect of the present invention, there is provided a building having the termite-proof structure according to any one of the first to eighteenth aspects.

The termite-proofing method according to the nineteenth aspect is to prevent the termites from entering the underfloor space through the seam between the rising portion of the fabric foundation of the building and the holding concrete constructed on the ground surrounded by the rising portion. In order to prevent this, the termite-control sheet is constructed in such a manner that the seam is closed so that the seam is closed, wherein the termite-control sheet is provided below a concrete formwork erected for constructing the rising portion. After the outer end of the termite-controlling sheet is embedded in the rising portion by placing the rising portion in a state where the outer end projects outwardly, the termite-controlling sheet is bent. The holding concrete is cast in a state where the inner end is supported at a predetermined position, so that the inner end of the termite control sheet is embedded in the holding concrete.

According to a twelfth aspect of the present invention, the termites prevent the termites from entering the underfloor space through the seam between the rising portion of the cloth foundation of the building and the holding concrete constructed on the ground surrounded by the rising portion. A termite-prevention method for a building in which a termite sheet is installed so as to close the seam in order to prevent the seam, wherein a formwork in contact with concrete of a concrete formwork erected to construct the rising portion. On the surface, the rising portion is cast in a state in which the inner end side of the termite-control sheet which is folded in two with the release paper interposed and whose outer end is bent outward is fixed along the circumferential direction. After the outer end side of the termite sheet is buried in the rising portion, the inner concrete side of the termite sheet is bent and the holding concrete is poured in a state where the inner end is supported at a predetermined position. By In which the presser concrete embedding the inner end of the termite sheet.

The termite control method according to claim 21 is to prevent termites from entering the underfloor space through the seam between the rising portion of the fabric foundation of the building and the holding concrete constructed on the ground surrounded by the rising portion. In order to prevent this, a termite sheet, a termite construction method for a building to be constructed so as to close the seam, a lower formwork that is erected to construct the rising portion and on the lower formwork By driving the rising section in a state where the termite sheet is sandwiched between the mounted upper mold frame and the outer end thereof protruding outward, the termite sheet is placed on the rising section. After embedding the outer end, the inner end of the termite sheet is attached to the holding concrete.

According to a twenty-second aspect of the present invention, the termite-proofing method comprises casting the holding concrete to embed the inner end of the termite-control sheet in the holding concrete.

According to a twenty-third aspect of the present invention, the termite control sheet is bent and the holding concrete is poured while the inner end of the sheet is supported at a predetermined position.

A concrete form according to a twenty-fourth aspect of the present invention is a concrete form comprising a lower form which is erected for constructing a rising portion of a fabric foundation of a building, and an upper form which is placed on the lower form. A mold frame, wherein a termite-control sheet extending in a circumferential direction is sandwiched between the lower mold frame and the upper mold frame so that an outer end thereof protrudes outward.

According to a termite protection method for a building according to the twenty-fifth aspect, the termites penetrate into the underfloor space through the seam between the rising portion of the fabric foundation of the building and the pressing concrete constructed on the ground surrounded by the rising portion. A termite-proofing method for a building, in which a termite-control sheet is constructed to prevent the occurrence of a problem, wherein after the base portion of the cloth foundation is cast, the uncured base portion extends circumferentially and projects for preventing settlement. After inserting the lower end of the termite-control sheet having a portion so that the settlement-preventing protrusion comes into contact with the uncured base portion and embedding the termite-control sheet, the upper end of the termite-control sheet is embedded in the holding concrete. is there.

[0031]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1 to FIG.
The termite prevention structure of the building A according to the embodiment prevents termites 5 from entering the underfloor space 6 through the joint 4 between the foundation slab 2 and the outer peripheral rising portion 3 in the solid foundation 1 of the building A. The seams 4 are closed, for example, by the termite sheet 7.

As shown in FIG. 1, the foundation slab 2 is installed entirely under the floor of the building A.
Below it, abandoned concrete 8 and split stone 9 are constructed. Note that the vertical cross-sectional shape and the like of the base slab 2 are not particularly limited, and various conventionally known configurations can be adopted. Further, a moisture-proof sheet or the like may be laid as needed between the split stone 9 and the waste concrete 8 or between the waste concrete 8 and the foundation slab 2.

The outer peripheral rising portion 3 is erected so as to extend in the circumferential direction on the outer peripheral portion on the base slab 2, and a joint 4 is formed at a joint portion between the basic slab 2 and the outer peripheral rising portion 3. . Inside the outer peripheral rising portion 3, a space 6 below the floor is formed, and a rising portion 10 extending in a columnar shape or extending vertically and horizontally is provided upright as required.

The termite 5 is an incompletely metamorphic insect living in a social life related to cockroaches, and is a generic term for the termite (Isoptera) Isoptera. The termite 5 has a non-deformable hard head 5a as shown in FIG. Examples of such termites 5 include various termites such as Yamato termite and house termite.

As the termite sheet 7, for example, a synthetic resin sheet kneaded with an termiticide such as “ant cut (trade name, manufactured by Fukubi Chemical Industry Co., Ltd.)” or “termite shutter (trade name, Dainippon Timber Co., Ltd.) For example, various known sheet materials and plate materials having termite-prevention properties, such as a glass fiber sheet coated with a termite-controlling agent such as "Anshou Kogyo Co., Ltd."
And has a Shore hardness of at least about 70, which is a hardness that termites 5 cannot chew, and has a service life of several tens of years under the use environment. It is desirable to use one made of a corrosion-resistant material.

The termite sheet 7 is, for example, a sheet or plate made of the above-mentioned corrosion-resistant material made of metal or synthetic resin. As shown in FIG.
The maximum linear dimension H of the cross section of the head 5a of the termite 5 in any direction woven from the stainless steel wire 11
Stainless steel mesh 7S having a large number of meshes (holes) 12 of smaller linear dimensions [for example, "Termimimesh (TE
RMI-MESH (trade name), manufactured by Termimis Japan Co., Ltd.], and a mesh sheet that is excellent in flexibility and easy to shape by cutting and bending, contouring at the time of bending, and the like are preferable.

The mesh sheet as a termite barrier material is woven or knitted from fibers, filaments, strands or the like of ceramics, glass, synthetic resin, metal (particularly stainless steel), etc., in addition to stainless steel mesh 7S. Various materials such as a wire lath, a nonwoven fabric, a punched metal, a metal lath, and the like can be used. In short, what is necessary is just to have many holes, such as the mesh 12. The shape of the hole is not particularly limited, and may be an appropriate shape such as a rectangular shape or a circular shape.

As shown in FIG. 2, the termite control sheet 7 is attached to the outer peripheral rising portion 3 and the base slab 2 so as to close the inside of the joint 4.
In order to attach the termite sheet 7, the termite sheet 7 is bent or molded so as to have an L-shaped cross section, and the mortar is coated with an adhesive mortar 13 containing an appropriate polymer or the like. What is necessary is just to adhere to the outer peripheral rising part 3 and the foundation slab 2, etc. Before bonding with the bonding mortar 13, it is desirable to fasten with a fastening member (not shown) such as a nail, a nail with a lock washer (for example, manufactured by Hilto), a staple, or the like.

As described above, the termite-control sheet 7 provides a joint 4
Is closed, even if the termites 5 enter the seam 4 from the outside D, the termite control sheet 7 becomes an obstacle and the entry into the underfloor space 6 is prevented. Therefore, there is an advantage that the frame B and the floor C can be surely protected from damage by the termites 5 without polluting the environment in the building A.

When the termite sheet 7 made of the corrosion-resistant material is used, there is no possibility of the termites 5 breaking through the termites 5, so that the termites 5 can be more reliably prevented from entering the underfloor space 6. There are advantages. Also, even when a mesh sheet is used as the termite sheet 7,
Since the linear dimension of the hole of the mesh 12 or the like is smaller than the maximum linear dimension H of the cross section of the head 5a of the termite 5 in any direction, it is impossible for the termite 5 to pass through the mesh sheet. In addition, since the mesh sheet has a large number of holes, there is an advantage that the mesh sheet can be more firmly attached by an anchor effect at the time of bonding with the bonding mortar 13 or the like.

In this case, the maximum linear dimension H is about 1.1 to 1.25 mm for house termites and about 1.0 to 1.2 mm for house termites, so that the termites inhabit. In the area, it is desirable that the linear dimension of the hole be about 2.0 mm or less in any direction. Examples of the fine aggregate contained in the adhesive mortar 13 include sand and the like that the termites 5 cannot chew. However, in order to prevent the applied adhesive mortar 13 from being eroded by the termites 5 in any part, holes are used. It is desirable to use a material having a size that passes through, and to mix them so that the distance between them is smaller than the maximum linear dimension H.

As shown in FIG. 5, in the termite structure of the building A according to the second embodiment, the outside of the joint 4 is closed by the termite sheet 7 in the first embodiment. Therefore, the adhesive mortar 13 and the termite sheet 7 become obstacles,
There is an advantage that termites 5 can be prevented from entering the underfloor space 6 through the seam 4.

In this case, the termite-control sheet 7 is fixed in a state where the cross section is flat, if necessary, by the above-mentioned fixing member, and then the adhesive mortar 13 is applied to thereby form the outer peripheral rising portion 3 and the base. What is necessary is just to adhere to the slab 2 etc.

As shown in FIGS. 6 and 7, the termite-proof structure of the building A according to the third embodiment is different from the cloth foundations 31 and 32 of the building A.
To prevent the termites 5 from passing through the seam 36 between the rising portions 33, 34 and the holding concrete 35 to enter the underfloor space 6, and the termite control sheet 7 closes, for example, the upper side of the seam 36. Things.

The cloth foundations 31 and 32 are installed on the outer peripheral portion of the building A and on the inner side thereof, and the rising portions 33 (3
4) and the base portion 37 (38), the cross section is formed in an inverted T-shape. The ground 39 inside the rising portion 33 constructed in the outer peripheral portion and extending in the circumferential direction is divided into a plurality of sections by the rising portion 34 constructed inward and continuous vertically and horizontally. Below the cloth foundations 31, 32, abandoned concrete 8 and split stone 9 are constructed.

The holding concrete 35 is constructed on the ground 39 surrounded by the outer peripheral portion and the inner rising portions 33 and 34 via, for example, blind gravel 40, and a wire mesh or the like is embedded therein. Note that a moisture-proof sheet or the like may be laid between the press concrete 35 and the crushed gravel 40 or between the crushed gravel 40 and the ground 39 as necessary.

The termite control sheet 7 is formed with a rising member 33, an adhesive mortar 13 or the like so as to close the upper side of the joint 36 such that the rising sections 33 and 34 and the holding concrete 35 have an L-shaped cross section. Installed. Therefore, even when termites enter the seam 36 from the ground 39, there is an advantage that the termite sheet 7 can be prevented from entering the underfloor space 6 as an obstacle.

Here, as in this embodiment, if the expansion / contraction pleats 41 are extended along the circumferential direction at, for example, the corners of the termite control sheet 7, the rising portions 33 due to vibrations such as earthquakes can be obtained. Even when the relative position between the holding concrete 35 and the holding concrete 35 fluctuates, the expansion / contraction fold 41 expands and contracts.
It has the advantage that it can be prevented from coming off, and that there is no need for repair. In this case, it is desirable to apply the adhesive mortar 13 by opening a predetermined range including the stretchable fold 41 so that the stretchable fold 41 is not buried. In addition, the elastic fold 41 is folded over a predetermined range, etc.
May be extended in advance, or may be extended at the construction site.

Furthermore, if a termite sheet 42 is laid below the holding concrete 35, even if a crack occurs in the holding concrete 35, the termites 5 pass through the crack and enter the underfloor space 6. There is an advantage that can be prevented.

The termite control sheet 42 is provided between the holding concrete 35 and the blind gravel 40 as well as the blind gravel 4.
It may be laid between 0 and the ground 39. As such a termite sheet 42 for holding, the same sheet as the termite sheet 7 can be used.

As shown in FIG. 8, the termite structure of the building A according to the fourth embodiment is different from the third embodiment in that the inner end 7b of the termite sheet 7 is buried in the concrete 35. Therefore, since the inner end 7b of the termite control sheet 7 can be securely attached to the holding concrete 35 and can be buried when the holding concrete 35 is cast, there is an advantage that the attaching work can be saved.

In this case, the outer end 7a of the termite control sheet 7 has the rising portions 33,
What is necessary is just to attach to 34 with the fastening member, the adhesive mortar 13, etc. The inner end 7b of the termite sheet 7 may be bent at an appropriate portion and supported at a predetermined position, and a holding concrete 35 may be cast and buried. In addition, the pleat part 41 for expansion and contraction
It is desirable to extend to a position higher than the holding concrete 35 so as not to be buried by the casting of the holding concrete 35.

Here, as in this embodiment, if the inner end 7b of the termite control sheet 7 is bent at least one time in an appropriate direction such as upward, there is an advantage that it is difficult for the termite control sheet 7 to fall out of the holding concrete 35 after embedding. .

As shown in FIG. 9, in the termite structure of the building A according to the fifth embodiment, the outer end 7a of the termite sheet 7 is
3 and 34, and the outer end 7a of the termite sheet 7 and the adhesive tape 51 are fixed to the rising portions 33 and 34 by fastening members such as nails 52. Therefore, there is an advantage that the work of attaching the outer end 7a of the termite sheet 7 can be performed easily.

The pressure-sensitive adhesive 53 used for the pressure-sensitive adhesive tape 51 is preferably made of an asphalt-based material or a coal-tar-based material having a termite-proof property. It is more desirable to have a viscosity that passes through the holes of the termite sheet 7 when pasting. The fastening member may be, for example, a staple or a screw in addition to the nail 52. Temporarily fixing and fixing the outer end 7a of the termite sheet 7 may be performed before the holding concrete 35 is constructed, as in the fourth embodiment.

As shown in FIG. 10, the termite-control structure of a building A according to the sixth embodiment is different from the second to fifth embodiments in that
The vertical plate 62 of the termite-controlling object 61 is fixed to the rising portion 3 by a fastening member.
3 and 34, the horizontal plate 63 of the termite-controlling object 61 is buried in the concrete 35, and the upper end 7c of the termite-control sheet 7 is attached to the rising portions 33 and 34 with a fastening member or an adhesive mortar 13. The lower end 7 d of the termite sheet 7 is attached to the vertical plate 62 with a fastening member or an adhesive mortar 13.

The termite-controlling object 61 includes a vertical plate 62 and a horizontal plate 63.
, A long cross section is formed in an L-shape. Although the material of this termite-controlling object 61 is not particularly limited,
It is desirable to use a relatively hard synthetic resin such as polyvinyl chloride or polypropylene, a metal such as aluminum or stainless steel, or the like so as not to be broken by the termites 5.

As described above, since the seam 36 is closed by the termite-controlling material 61 and the upper part of the termite-controlling material 61 is closed by the termite-controlling sheet 7, the termites 5 pass through the seam 36 and have an underfloor space. 6 can be prevented from entering.

Here, as in this embodiment, the horizontal plate 6
If a protruding plate 64 protruding in an appropriate direction is extended along the circumferential direction at the tip of the third concrete 3, the pressing concrete 35 after embedding is provided.
There is an advantage that it is difficult to get out of the box.

As shown in FIGS. 11 and 12, the termite-control structure of the building A according to the seventh embodiment is different from the second-fifth embodiments in that the termite-control sheet 7 is replaced with the termite-control sheet 7 by pressing concrete. The termite-control sheet 7 is attached to the rising portions 33 and 34 by a fastening member or an adhesive mortar 13 while being laid below the termite 35. Therefore, the termites 5 can be prevented from entering the underfloor space 6 through the joints 36, and even if a crack occurs in the holding concrete 35, the termites 35 pass through the cracks and enter the underfloor space 6. This has the advantage that it can be reliably prevented.

The outer end 7a of the termite control sheet 7 may be attached before or after the holding concrete 35 is applied.

As shown in FIGS. 13 to 15, in the termite protection method for building A according to the eighth embodiment, in the fourth and fifth embodiments, the termite sheet 7 is installed so as to close the joint 36. In this method, the outer end 7a of the termite sheet 7 is embedded in the rising portions 33, 34, and the termite sheet 7 is bent to support the inner end 7b at a predetermined position. Is buried in the holding concrete 35.

That is, first, as shown in FIG. 13, concrete forms 81, 8 for placing the rising portion 33 are provided.
When erected 2 on the base 37 with a space between them, the termite sheet 7 is sandwiched between the inner concrete form 81 and the base 37, and an appropriate part is folded. The outer end 7a is supported at a predetermined position by bending. In the case where the base portion 37 and the rising portion 33 are installed by an integrated driving method of driving almost simultaneously or simultaneously, the termite control sheet 7 is disposed below the inner concrete form 81 in the same manner as described above. It is good.

Next, as shown in FIG. 14, if the rising portion 33 is cast, the outer end 7 a of the termite control sheet 7 is embedded in the rising portion 33. Therefore, the outer end 7a of the termite control sheet 7 can be securely attached to the rising portion 33 and can be buried when the rising portion 33 is driven, so that there is an advantage that the attaching work can be saved.

After the concrete forms 81 and 82 have been removed, an appropriate portion of the termite sheet 7 is bent and its inner end 7b is bent.
At a predetermined position. Further, as shown in FIG. 15, after backfilling the soil around the cloth foundation 31 and, if necessary, laying the gravel 40 and laying the termite sheet 42, the holding concrete 35 is cast. The inner end 7b of the termite sheet 7 is embedded in the holding concrete 35. In the inner rising section 34, the same operation as described above may be performed on both sides of the rising section 34.

As described above, the termite control sheet 7 is
And the concrete formwork 81, the termite-control sheet 7 can be easily arranged, and if the rising parts 33 and 34 and the holding concrete 35 are constructed beforehand, a fastening member or an adhesive mortar can be used. Since there is no need to attach the termite-control sheet 7 with the use of the thirteen or the like, there is an advantage that the construction cost can be reduced. It is desirable that the outer end 7a and the inner end 7b of the termite sheet 7 be bent at least once in an appropriate direction such as upward as in this embodiment. Rising part 33,3
There is an advantage that it is difficult to remove from the concrete 4 and the holding concrete 35. Further, in the case where a mesh sheet is used as the termite sheet 7, there is an advantage that since the mesh sheet has a large number of holes, it can be more firmly integrated by the anchor effect when buried in the rising portion 33 or the holding concrete 35.

As shown in FIGS. 16 to 21, the termite proofing method for the building A according to the ninth embodiment differs from the eighth embodiment in that the terminator is folded in two with the release paper 91 interposed therebetween and the outer end 7.
The inner end 7b side of the termite-control sheet 7 whose a is bent outward is provided on the form surface 81a which comes into contact with the concrete of the inner concrete form 81 among the concrete forms 81, 82 made of steel, for example. The rising portions 33 are cast in a state of being fixed along the circumferential direction by the magnets 92.

As shown in FIGS. 16 and 17, the termite sheet 7 is folded in two with the release paper 91 interposed therebetween, and the outer end 7a is bent outward. If the concrete form 81 is made of steel, it may be fixed by a magnet 92 as in this embodiment. However, if a concrete form 81 made of wood or synthetic resin is used, a stopper such as a nail or staple is used. The termite sheet 7 may be fixed by a wearing member.

As shown in FIG. 18, if the rising portion 33 is cast in this state, the outer end 7a of the termite control sheet 7 and the magnet 92 are buried in the rising portion 33, but the inner end 7b is separated. It is not embedded by the interposition of the pattern paper 91. As shown in FIGS. 19 and 20, after the concrete forms 81 and 82 are removed, the inner end 7b side of the termite sheet 7 is bent to release the release paper 91, and the inner end 7b is supported at a predetermined position. I do. In this case, the expansion / contraction pleats 41 may be extended at predetermined positions of the termite control sheet 7 along the circumferential direction as necessary.

Further, as shown in FIG. 21, after backfilling the soil around the cloth foundation 31 and, if necessary, laying the gravel 40 and laying the termite sheet 42, the holding concrete 35 is poured. Then, the inner end 7 b of the termite sheet 7 is buried in the holding concrete 35. In the inner rising section 34, the same operation as described above may be performed on both sides of the rising section 34.

As described above, the termite-control sheet 7 folded in two is
Is fixed to the form surface 81a of the concrete form 81 in advance, and the termite-control sheet 7 can be easily arranged.
If the rising portions 33, 34, the holding concrete 35, and the like are constructed after being arranged in advance, there is no need to attach the termite-control sheet 7 with a fastening member or an adhesive mortar 13, and the like, and thus the construction cost can be reduced. is there.

As shown in FIGS. 22 to 26, the termite proofing method for the building A according to the tenth embodiment is different from the eighth and ninth embodiments in that the lower mold 81A and the lower mold 81 The rising portion 33 is cast in a state where the termite-control sheet 7 is sandwiched between the upper mold frame 81B and the upper mold frame 81B so that the outer end 7a protrudes outward.

As shown in FIG. 22, the termite sheet 7 is sandwiched between the lower mold frame 81A and the upper mold frame 81B in a flat state. The lower mold frame 81A and the upper mold frame 81B are vertically integrated by a clamping member (not shown) such as a clamp.

As shown in FIG. 23, at the corners such as the protruding corner and the entering corner, the ends 7e of the long termite sheet 7 may be sandwiched so as to overlap each other. Alternatively, as shown in FIG. 24, a termite sheet 7 as a corner accessory having an L-shape in plan view is used at a corner portion, and both end portions 7f of the L-shaped termite sheet 7 and a long termite termite are used. The end 7e of the sheet 7 may be sandwiched in a state of being superimposed, adhered, entangled, or the like.

When the rising portion 33 is cast in this state, the outer end 7a of the termite control sheet 7 is embedded in the rising portion 33 as shown in FIG. When the termite sheet 7 is made of a soft material, the holding concrete 35
In order to make it easier to cast, a relatively hard sheet material or plate material such as semi-rigid or hard is superimposed on the lower surface of the termite sheet 7 or bonded and integrated on the upper surface or lower surface, It is desirable that the termite sheet 7 be supported horizontally or the like.

Next, as shown in FIG.
After backfilling the surrounding soil and, if necessary, laying the crushed gravel 40 and laying the termite sheet 42, the holding concrete 35 is cast, so that the inner end 7 b of the termite sheet 7 is pressed into the holding concrete 35. Buried in In this case, the lower formwork 8
The height of 1A and the upper mold frame 81B is the inner end 7b of the termite control sheet 7.
May be set so as to be buried in the holding concrete 35 as it is. In the inner rising section 34, the same operation as described above may be performed on both sides of the rising section 34.

As described above, the termite sheet 7 is attached to the lower mold 81A.
And the upper mold frame 81B, the termite-control sheet 7 can be easily arranged. If the termite-control sheet 7 is arranged in advance and the rising portions 33, 34 and the holding concrete 35 are constructed, a fastening member or an adhesive mortar can be used. Termite control sheet 7 by 13 etc.
Since there is no need for the mounting work, there is an advantage that the construction cost can be reduced.

As shown in FIG. 27, in the termite mitigation method for building A according to the eleventh embodiment, in the tenth embodiment, the outer end 7a of the termite sheet 7 is buried at a higher position of the rising portion 33. An inner end 7b of the termite sheet 7 is held down by a fastening member or an adhesive mortar 33 and bonded onto concrete 35. For this reason, the expansion / contraction pleats 41 are previously extended on the termite sheet 7 or
There is an advantage that it can be extended by bending or the like after being buried in 3.

As shown in FIG. 28, in the termite construction method for building A according to the twelfth embodiment, in the eleventh embodiment, the outer end 7a of the termite sheet 7 is buried at a higher position of the rising portion 33, After bending the termite sheet 7 to support its inner end 7b at a predetermined position, the termite sheet 7 is embedded in the concrete 35 by holding the inner end 7b of the termite sheet 7 down. Therefore, similarly to the eleventh embodiment, the expansion / contraction folds 41 are attached to the termite-control sheet 7.
There is an advantage that it can be extended in advance, or can be extended by bending or the like after embedding in the rising portion 33.

As shown in FIG. 29 and FIG. 30, the termite proofing method for the building A according to the thirteenth embodiment is different from the eighth to twelfth embodiments in that after the base portion 37 is cast, The lower end 7d of the termite control sheet 7 extending in the circumferential direction and having the anti-sinking projection 101 is inserted into the portion 37 so that the anti-sinking projection 101 abuts on the uncured base 37, and then embedded. The upper end 7c of the termite sheet 7 is buried in the holding concrete 35.

The base portion 37 may be driven together with the rising portion 33 by the above-described integral driving method. In this case, in addition to the concrete forms 81 and 82, the concrete forms 103 and 104 for the base 37 may be arranged at predetermined positions.

The termite control sheet 7 is provided with a subsidence prevention protrusion 101 which is folded or molded in a T-shape at a predetermined position and is horizontally projected. As shown in FIG. 29, the lower end 7d of the termite sheet 7
Then, it is only necessary to embed in such a state that the anti-sinking projection 101 is inserted into contact with the uncured base 37. In this manner, if the subsidence preventing projections 101 are provided so as to protrude, it is possible to reliably prevent the termite-control sheet 7 from sinking when the lower end 7 d of the termite-control sheet 7 is inserted into the uncured base portion 37. Therefore, there is an advantage that the termite control sheet 7 can be disposed relatively early after the base portion 37 is driven. When the subsidence preventing projection 101 is not provided, the termite control sheet 7 is used.
The lower end 7d of the termite control sheet 7 may be inserted after the concrete of the base portion 37 has a certain degree of viscosity so that the concrete does not sink.

Thereafter, as shown in FIG. 30, the inside and outside of the termite sheet 7 is back-filled and the like, and
, The upper end 7c of the termite control sheet 7 is buried in the holding concrete 35. The inner rising portion 34
In this case, the same operation as described above may be performed on the base portion 38 on both sides of the rising portion 34.

By disposing the termite control sheet 7 in this way, the space between the base portion 37 and the holding concrete 35 can be closed, so that the rising portion 33 and the holding concrete 35 can be closed.
There is an advantage that termites 5 can be prevented from passing through the seam 4 and entering the underfloor space.

In the second to thirteenth embodiments described above, the case where the cloth foundation 32 is applied to the inside of the cloth foundation 31 in the outer peripheral portion has been described. However, the present invention is not limited to this. Instead of the cloth foundation 32, a plurality of conventionally known floor bundles or the like, which are erected at intervals from each other, may be constructed on the holding concrete 35 constructed entirely.

[0086]

As described above, according to the first, second, and eighteenth aspects of the present invention, if a seam is closed by a termite sheet, the termite sheet becomes an obstacle and termites are hindered. It can be prevented from entering the underfloor space through the seam,
Therefore, it is possible to surely protect the frame and the floor frame from the damage by termites without polluting the environment in the building.

According to the third, sixth, and eighteenth aspects of the present invention, the outer end or the inner end of the termite sheet is embedded in the rising portion or the holding concrete. The inner end can be securely attached to the rising portion or the holding concrete, and can be buried when the rising portion or the holding concrete is poured, so that the mounting work can be saved.

According to the fourth, seventh, fourteenth, fifteenth, and eighteenth aspects of the present invention, the outer, inner, lower, or upper end of the termite sheet is bent. It is difficult to remove from the holding concrete or base after burial.

According to the fifth and eighteenth aspects of the present invention,
The outer end of the termite sheet is temporarily fixed to the rising portion with an adhesive tape, and the outer end of the termite sheet and the adhesive tape are fixed to the rising portion with a fastening member such as a nail. End mounting work can be performed easily.

According to the eighth and eighteenth aspects of the invention,
Since the termite control sheet is laid below the holding concrete, even if a crack occurs in the holding concrete, it is possible to prevent termites from passing through the crack and entering the underfloor space.

According to the ninth and eighteenth aspects,
The termite sheet is laid below the holding concrete, and the outer end of the termite sheet is attached to the rising part. Even if a crack occurs, it is possible to reliably prevent termites from passing through the crack and entering the underfloor space.

According to the tenth and eighteenth aspects of the present invention, the seam is closed by the termite-controlling material, and the upper part of the termite-controlling material is closed by the termite-controlling sheet. To prevent entry into the underfloor space.

According to the eleventh and eighteenth aspects of the present invention, since the projecting plate extends along the circumferential direction at the tip of the horizontal plate of the termite-preventing object, it does not easily come off from the holding concrete after being buried.

According to the twelfth and eighteenth aspects of the present invention, since the expansion and contraction folds are provided at predetermined positions of the termite control sheet along the circumferential direction, the rising portions and the holding concrete are vibrated by an earthquake or the like. Even if the relative position of the termites fluctuates, it is possible to prevent the termite-control sheet from coming off the rising portion and the holding concrete, so that there is no need for repair.

According to the thirteenth and eighteenth aspects of the present invention, the lower end of the termite-control sheet extending in the circumferential direction is embedded in the base portion of the cloth foundation, and the upper end of the termite-control sheet is embedded in the holding concrete. Therefore, the seam between the base portion and the holding concrete and between them can be closed, so that the termites can be prevented from passing through the seam between the rising portion and the holding concrete and entering the underfloor space.

According to the inventions of claim 16 and claim 18, since the termite-preventive sheet is made of the corrosion-resistant material, there is no possibility that the termites are eroded by the termites. Can be blocked.

According to the seventeenth and eighteenth aspects of the present invention, since the termite-control sheet is the mesh sheet, the termite-control sheet can be more firmly attached by an anchor effect at the time of bonding with an adhesive mortar and the like, and the rising part and the holding concrete can be prevented. There is an advantage that it can be more firmly integrated by the anchor effect when buried in the burial. Further, since the linear dimension of the hole is smaller than the maximum linear dimension of the cross section of the head of the termite in any direction, the termite does not pass through the mesh sheet.

According to the nineteenth aspect of the present invention, since the termite-control sheet is sandwiched between the base portion and the concrete formwork, the termite-control sheet can be easily arranged, and the termite-control sheet is pre-arranged and then the rising part is formed. Since the outer end and the inner end are buried by laying down concrete or the like, it is not necessary to attach a termite-proof sheet with a fastening member or an adhesive mortar, so that the construction cost can be reduced.

According to the twentieth aspect of the present invention, the termite-control sheet folded in two is fixed to the formwork surface of the concrete formwork. Since the outer end and the inner end are buried by casting concrete or the like, there is no need to attach a termite-control sheet with a fastening member or an adhesive mortar, so that the construction cost can be reduced.

According to the twenty-first and twenty-fourth aspects of the present invention, the termite control sheet is sandwiched between the lower mold frame and the upper mold frame. Since the outer end and the like are buried by embedding a part or the like, there is no need to attach a termite-control sheet with a fastening member or an adhesive mortar or the like, so that the construction cost can be reduced.

According to the twenty-second aspect of the present invention, since the inner end of the termite-control sheet is buried in the holding concrete by casting the holding concrete, the inner end of the termite-control sheet can be securely attached to the holding concrete. . In addition, since the holding concrete can be buried at the time of placing, the labor for mounting can be saved.

According to the twenty-third aspect of the present invention, the termite sheet is bent and the holding concrete is poured in a state where the inner end thereof is supported at a predetermined position. It can be installed, or can be bent and extended after being buried in the rising part.

According to the twenty-fifth aspect of the present invention, since the projecting portion for preventing settlement is provided on the termite-control sheet, the termite-control sheet is settled when the lower end of the termite-control sheet is inserted into the uncured base portion. Therefore, the termite-control sheet can be disposed relatively early after the base portion is driven.

[Brief description of the drawings]

FIG. 1 is a schematic longitudinal sectional view showing a termite structure of a building according to a first embodiment.

FIG. 2 is an enlarged longitudinal sectional view of a main part near the inside of a seam.

3A is a plan view of a termite, and FIG. 3B is a cross-sectional view taken along line YY of FIG. 3A.

FIG. 4 is an enlarged plan view of a main part of the termite sheet.

FIG. 5 is an enlarged vertical sectional view of a main part showing a termite structure of a building according to a second embodiment.

FIG. 6 is a schematic longitudinal sectional view showing a termite structure of a building according to a third embodiment.

FIG. 7 is an enlarged longitudinal sectional view of a main part near a seam.

FIG. 8 is an enlarged vertical sectional view of a main part showing a termite structure of a building according to a fourth embodiment.

FIG. 9 is an enlarged longitudinal sectional view of a main part showing a termite structure of a building according to a fifth embodiment.

FIG. 10 is an enlarged longitudinal sectional view of a main part showing a termite structure of a building according to a sixth embodiment.

FIG. 11 is a schematic longitudinal sectional view showing a termite structure of a building according to a seventh embodiment.

FIG. 12 is an enlarged longitudinal sectional view of a main part near a seam.

FIG. 13 is an enlarged vertical sectional view of a main part showing a state in which an anti-termite sheet is interposed between a concrete formwork and a base part in the termite-proofing method for a building according to the eighth embodiment.

FIG. 14 is an enlarged vertical sectional view of a main part showing a state in which the termite sheet with the outer end embedded in the rising portion is bent and the inner end is supported at a predetermined position.

FIG. 15 is an enlarged longitudinal sectional view of a main part showing a state in which the inner end of the termite sheet is buried in holding concrete.

FIG. 16 is an enlarged longitudinal sectional view of a main part showing a state in which a folded termite sheet is fixed inside a concrete formwork in the termite protection method for buildings according to the ninth embodiment.

FIG. 17 is an enlarged longitudinal sectional view of a main part showing a state in which the folded termite sheet is fixed inside a concrete formwork.

FIG. 18 is an enlarged vertical cross-sectional view of a main part showing a state where a rising portion is cast.

FIG. 19 is an enlarged longitudinal sectional view of a main part showing a state in which the inner end side of the termite sheet is bent.

FIG. 20 is an enlarged longitudinal sectional view of a main part showing a state in which the inner end of the termite sheet is supported at a predetermined position.

FIG. 21 is an enlarged longitudinal sectional view of a main part showing a state in which the inner end of the termite sheet is buried in holding concrete.

FIG. 22 is an enlarged vertical sectional view of a main part showing a state in which a termite sheet is sandwiched between a lower mold frame and an upper mold frame in the building termite mitigation method according to the tenth embodiment.

FIG. 23 is a schematic plan view showing an example of a state in which a termite control sheet is held at a corner portion.

FIG. 24 is a schematic plan view showing another example of a state in which a termite control sheet is held at a corner portion.

FIG. 25 is an enlarged longitudinal sectional view of a main part showing a state in which a rising portion is cast.

FIG. 26 is an enlarged longitudinal sectional view of a main part showing a state in which the inner end of the termite sheet is buried in holding concrete.

FIG. 27 is an enlarged vertical sectional view of a main part showing a state in which an inner end of a termite sheet is mounted on concrete in the termite construction method for a building according to the eleventh embodiment.

FIG. 28 is an enlarged vertical sectional view of a main part showing a state in which an inner end of a termite sheet is buried in concrete in the termite construction method for buildings according to the twelfth embodiment.

FIG. 29 is an enlarged longitudinal sectional view of a main part showing a state in which the lower end of the termite sheet is inserted into the uncured base in the termite construction method for buildings according to the thirteenth embodiment.

FIG. 30 is an enlarged longitudinal sectional view of a main part showing a state in which the upper end of the termite sheet is buried in holding concrete.

[Explanation of symbols]

 A Building 1 Solid foundation 2 Foundation slab 3 Outer perimeter 4 Seam 5 Termite 5a Head 6 Underfloor space 7 Termite control sheet 7a Outer end 7b Inner end 7c Upper end 7d Lower end 7S Stainless steel mesh (mesh sheet) 12 Mesh (hole) 31, Reference Signs List 32 cloth foundation 33, 34 rising part 35 holding concrete 36 seam 37, 38 base part 39 ground 41 expansion / contraction fold part 42 holding termite-proof sheet 51 adhesive tape 52 nail (fixing member) 61 termite-controlling object 62 vertical plate 63 Horizontal plate 64 Projection plate 81, 82 Concrete formwork 81a Formwork surface 81A Lower formwork 81B Upper formwork 91 Release paper 101 Sinking prevention protrusion

Continuation of the front page (72) Inventor Tamotsu Kawai 3-4-2 Nakanoshima, Kita-ku, Osaka City Inside Kaneka Kagaku Kogyo Co., Ltd. (72) Inventor Toshiya Shiozu 2-3-2 Nakanoshima, Kita-ku, Osaka-shi Bell F-term in Fuchikagaku Kogyo Co., Ltd. (reference) 2B121 AA16 BB28 BB32 EA05 2E001 DH14 EA02 EA08 FA21 GA24 GA32 HA33 HA34 HB03 HD01

Claims (25)

[Claims] 1. A termite-preventing structure for a building for preventing termites from passing through a seam between a foundation slab and an outer peripheral rising portion of a solid foundation of a building and entering a space under the floor, wherein an inside or outside of the seam is provided. The termite structure of a building, which is closed by termite sheets. 2. A termite-preventing structure for a building for preventing termites from entering the underfloor space through a seam between a rising portion of a cloth foundation of a building and a holding concrete constructed on the ground surrounded by the rising portion. The termite structure of a building, wherein the seam is closed by a termite sheet. 3. The termite structure of a building according to claim 2, wherein an outer end of the termite sheet is embedded in the rising portion. 4. The termite structure according to claim 3, wherein an outer end of the termite sheet is bent. 5. The termite-proof sheet is temporarily fixed to the rising portion with an adhesive tape, and the outer end of the termite-control sheet and the adhesive tape are fixed to the rising portion with a fastening member. Termite structure of a building. 6. The termite structure of a building according to claim 2, wherein an inner end of the termite sheet is embedded in the holding concrete. 7. The termite structure according to claim 6, wherein an inner end of the termite sheet is bent. 8. The termite structure of a building according to claim 2, wherein a termite sheet for holding is laid below the holding concrete. 9. The termite structure according to claim 2, wherein the termite sheet is laid below the holding concrete, and an outer end of the termite sheet is attached to the rising portion. 10. A termite-preventing structure for a building that prevents termites from entering the underfloor space through a seam between a rising portion of a fabric foundation of a building and a holding concrete constructed on the ground surrounded by the rising portion. And fixing the vertical plate of a termite-controlling agent having a cross section formed into an L-shape from a vertical plate and a horizontal plate to the rising portion, and embedding the horizontal plate in the holding concrete. ,
A termite structure for a building, wherein an upper end of a termite sheet extending in a circumferential direction is attached to the rising portion, and a lower end of the termite sheet is attached to the vertical plate. 11. The termite structure for a building according to claim 10, wherein a projecting plate extends along a circumferential direction at an end of the horizontal plate. 12. The termite prevention structure for a building according to claim 2, wherein a telescopic fold is provided at a predetermined position of the termite sheet along the circumferential direction. 13. A termite-preventing structure for a building for preventing termites from entering a space under the floor through a seam between a rising portion of a cloth foundation of the building and a presser concrete constructed on the ground surrounded by the rising portion. The termite structure of a building, wherein a lower end of a termite sheet extending in a circumferential direction is embedded in a base portion of the cloth foundation, and an upper end of the termite sheet is embedded in the holding concrete. 14. The termite structure according to claim 13, wherein a lower end of the termite sheet is bent. 15. The termite structure of a building according to claim 13, wherein an upper end of the termite sheet is bent. 16. The termite protection of a building according to claim 1, wherein the termite sheet comprises a durable, corrosion-resistant material resistant to the termite secretions and having a Shore hardness of at least about 70. Construction. 17. The termite control sheet according to claim 1, wherein the termite control sheet is a mesh sheet having a number of holes having a linear dimension smaller than a maximum linear dimension of a cross section of the head of the termite in any direction. Termite structure of a building. 18. A building having the termite structure according to any one of claims 1 to 17. 19. In order to prevent termites from passing into the underfloor space through a seam between the rising portion of the fabric foundation of the building and the holding concrete constructed on the ground surrounded by the rising portion, the termite control is provided. A method for termite-proofing a building, wherein a sheet is constructed so as to close the seam, wherein an outer end of the termite-proof sheet is outwardly positioned below a concrete formwork erected for constructing the rising portion. The outer end of the termite sheet is buried in the rising portion by driving the rising portion in a state where the termite protection sheet is disposed so as to protrude, and the terminator sheet is bent to set the inner end thereof to a predetermined position. A termite-proofing method for a building, wherein the inside of the termite-controlling sheet is buried in the holding-down concrete by placing the holding-down concrete in a state of being supported at a position. 20. Termite control to prevent termites from entering the underfloor space through a seam between the rising portion of the fabric foundation of the building and the holding concrete constructed on the ground surrounded by the rising portion. A termite prevention method for a building in which a sheet is constructed so as to close the seam, wherein a release paper is interposed between a form surface of the concrete formwork erected for constructing the rising portion and which comes into contact with concrete. The rising section is cast in a state in which the inner end side of the termite-control sheet that is folded in two and whose outer end is bent outward is fixed along the circumferential direction. After embedding the outer end side of the termite sheet, the inner concrete side of the termite sheet is bent, and the holding concrete is poured in a state where the inner end is supported at a predetermined position, whereby the holding concrete is placed. Anti-termite method of building, characterized by embedding the inner end of the termite sheet. 21. In order to prevent termites from entering the underfloor space through a seam between a rising portion of a fabric foundation of a building and a holding concrete constructed on the ground surrounded by the rising portion, the termite control is provided. A sheet, a termite-proof construction method for a building constructed so as to close the seam, wherein a lower formwork erected for constructing the rising portion and an upper formwork placed on the lower formwork By embedding the rising portion in a state where the termite sheet is sandwiched so that the outer end of the termite projecting outward, after embedding the outer end of the termite sheet in the rising portion, A termite prevention method for a building, wherein the inner end of the termite sheet is attached to the holding concrete. 22. The termite prevention method for a building according to claim 21, wherein an inner end of the termite control sheet is buried in the hold-down concrete by casting the hold-down concrete. 23. The method according to claim 22, wherein the holding concrete is poured while the termite sheet is bent and the inner end thereof is supported at a predetermined position. 24. A concrete formwork comprising a lower formwork erected for constructing a rising portion of a fabric foundation of a building, and an upper formwork placed on the lower formwork, A concrete formwork, wherein a termite-control sheet extending in a circumferential direction is sandwiched between a lower formwork and the upper formwork so that an outer end thereof protrudes outward. 25. A termite sheet for preventing termites from entering the underfloor space through a seam between a rising portion of a fabric foundation of a building and a holding concrete constructed on the ground surrounded by the rising portion. After the base portion of the cloth foundation is cast, the lower end of the termite sheet having a circumferentially extending and subsidence preventing projection on the uncured base portion. And inserting the projecting part so that the settlement-preventing protrusion contacts the uncured base part, and then burying the upper end of the termite-control sheet in the holding concrete.