JP2016166489A - Floor structure of building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To maintain termite prevention performance in a place, in which an underfloor space does not exist, over a long period of time.SOLUTION: A floor structure of a building includes: earthen floor concrete 2 for covering a top surface of ground E; foundation concrete 1 which is provided around the earthen floor concrete 2 and erected upward from the ground E; an upper-layer member 4 which is directly arranged on a top surface of the earthen floor concrete 2 and which constitutes a floor surface of a living space of the building; a moisture-proof sheet 5 with moisture-proof properties, which is laid between the ground E and the earthen floor concrete 2; and an anti-termite material 7 which is arranged in a boundary part between a peripheral edge of the earthen floor concrete 2 and the foundation concrete 1 and which has physical properties capable of repelling a termite.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a floor structure of a building in which an under-floor portion is subjected to an ant-proofing treatment.

  As a conventional technique related to the floor structure as described above, for example, the following Patent Document 1 is known. The floor structure disclosed in Patent Document 1 includes soil concrete (moisture-proof concrete) placed on the upper surface of a floor foundation board, and foundation concrete (cloth) placed around the soil concrete and standing on the ground to support the building. Foundation), and an ant sealant to be installed at the joint where the peripheral edge of the soil concrete and the inner surface of the foundation concrete are joined. As the ant-proof sealant, for example, a material in which viscoelastic sealant is blended with high-hardness particles that are resistant to white ant secretions and have corrosion resistance to white ants.

JP 2004-232454 A

  In Patent Document 1 above, since the ant sealant is applied to the joint portion (boundary portion) between the soil concrete and the foundation concrete, the white ants living in the soil pass through the joint portion upward (building side). Intrusion can be prevented.

  However, in the floor structure of Patent Document 1 described above, when the ant sealant loses its elasticity due to aging, a gap is formed in the joint, and white ants may enter through the gap. . In order to avoid such a situation with certainty, it is desirable to perform maintenance such as periodically replenishing an ant sealant. In this regard, in the floor structure of the above-mentioned Patent Document 1, since a space (underfloor space) exists between the floor of the building and the concrete between the soil, an operator who performs maintenance enters the underfloor space. It is possible to perform replenishment work of the above ant sealant.

  On the other hand, there are places in the building where there is no underfloor space, such as the entrance. In such a place, it is very difficult to perform the maintenance work as described above. For this reason, there has been a demand for a technique capable of maintaining the termite-proof performance for a long period even in a place where there is no underfloor space.

  This invention is made | formed in view of the above situations, and provides the floor structure of the building which can maintain the ant-proof performance in the place where underfloor space does not exist over a long period of time. Objective.

  In order to solve the above problems, the present invention is a floor structure of a building, and is provided with soil concrete covering the upper surface of the ground, and is provided around the soil concrete, and is erected upward from the ground. Moisture-proof having moisture resistance, which is laid between the foundation concrete that supports the building, the upper layer member that is directly disposed on the upper surface of the soil concrete and that constitutes the floor surface of the living space of the building, and the ground and the soil concrete A sheet and an ant-repellent material having physical properties capable of avoiding white ants are arranged at the boundary between the peripheral portion of the soil concrete and the foundation concrete (claim). 1).

  According to the present invention, since the termite-proofing material capable of repelling white ants is disposed at the boundary between the peripheral edge of the soil concrete and the foundation concrete, the white ants living in the soil (ground) pass through the boundary. You can no longer crawl up. Moreover, in order to avoid white ants due to the physical properties inherent in the termite-preventing material, for example, a sealant containing an anti-anticide (that is, a substance having a chemical property that repels white ants) is used instead of the termite-preventing material. Unlike the case, the ant-proof performance of the ant-proof material is not impaired even after a long period of use.

  Here, in the floor structure of the present invention, unlike a general room on the first floor of a building, there is no underfloor space (that is, the upper layer member is directly disposed on the upper surface of the soil concrete), so that the ant-proof material is temporarily replenished or When maintenance is to be performed, it is necessary to at least partially tear the upper layer member. For this reason, it is very difficult (or substantially impossible) to perform maintenance on the termite-proof material. On the other hand, in the present invention, since the termite-proof material that does not impair the termite-proof performance even if it is used for a long period of time is used, and the maintenance as described above becomes unnecessary, there is no underfloor space (for this reason, maintenance is required). It is possible to realize a very suitable ant protection structure in a place where it is difficult).

  Further, in the present invention, an ant protection material is disposed at the boundary between the peripheral edge of the soil concrete and the foundation concrete, which is likely to be an intrusion route of white ants, thereby preventing the white ants from entering the building. It is no longer necessary to take special measures for ant protection. For example, in place of a moisture-proof sheet laid between the soil concrete and the ground, measures such as using an ant-proof sheet with ant-proofing properties (for example, an ant-proofing agent kneaded) become unnecessary. . Thus, according to the present invention, since the ground can be covered with a relatively inexpensive moisture-proof sheet that does not have ant-proofing properties, good ant-proofing performance can be achieved while effectively suppressing an increase in cost. It can be maintained for a long time.

  In the present invention, the upper layer member disposed directly on the upper surface of the soil concrete may be a stack of a plurality of different element members. In this case, the lowermost element member in the upper layer member is directly disposed on the upper surface of the soil concrete, and the uppermost element member in the upper layer member constitutes the floor surface of the living space.

  The ant-preventing material is not particularly limited as long as it has physical properties capable of avoiding white ants. For example, a granule made of glass, or a borate mineral, Wakkanai diatom shale, basalt, and granite Those containing any of the above-mentioned mineral crushed materials can be suitably used as the termite-proofing material (claim 2).

  In the present invention, preferably, a chamfered portion is formed on an upper surface of a peripheral edge portion of the soil concrete along a side surface of the foundation concrete, and the anti-rust material is disposed so as to fill a gap corresponding to the chamfered portion. Item 3).

  As described above, when the termite-proof material is arranged in the chamfered portion formed at the peripheral edge of the soil concrete, the necessary and sufficient termite-proof performance is ensured while suppressing the amount of the termite-proof material used as much as possible. be able to.

  In the present invention, preferably, the interstitial concrete is interstitial concrete for entrance covering the ground under the entrance of the building, and the upper layer member includes a mortar layer laid on the upper surface of the interstitial concrete for entrance. Pavement material is included (Claim 4).

  According to this configuration, it is possible to maintain a good ant protection performance over a long period of time while making maintenance unnecessary at the entrance where no underfloor space exists.

  In the above configuration, more preferably, the floor structure further includes a boundary foundation disposed between an indoor ground and an outdoor ground in the entrance, and the soil concrete for the entrance is more than the boundary foundation. The indoor side soil concrete covering the ground on the indoor side, and the outdoor side soil concrete covering the ground on the outdoor side of the boundary foundation, at least the upper end of the boundary foundation portion and the indoor side and roof adjacent thereto. An ant-proof sheet having moisture-proof and ant-proof properties is laid on the upper surface of the outer ground (claim 5).

  According to this configuration, white ants can be effectively prevented from entering through the boundary portion between the boundary foundation and the indoor side soil concrete and the boundary portion between the boundary foundation and the outdoor side soil concrete. Can do. Moreover, since the ant-proof sheet is used only on the boundary foundation and the vicinity thereof, the cost increase can be minimized.

  In the present invention, preferably, the soil concrete is soil concrete for a low floor room covering a ground under a low floor room designed to have a floor surface lower than usual on the first floor of the building, and the upper layer member Includes a heat insulating material and a flooring material laid on the upper surface of the soil concrete for the low-floor room (Claim 6).

  According to this configuration, in a low-floor room where there is no underfloor space, it is possible to maintain good ant protection performance over a long period of time while making maintenance unnecessary.

  As described above, according to the floor structure of a building of the present invention, it is possible to maintain the ant protection performance in a place where there is no underfloor space over a long period of time.

It is a top view which shows the floor structure of the building concerning 1st Embodiment of this invention. It is sectional drawing along the II-II line of FIG. It is sectional drawing along the III-III line of FIG. FIG. 2 is a view corresponding to FIG. 1 with an upper layer member removed from the floor structure. It is a perspective view which shows the floor structure of the state similar to FIG. It is a figure which shows the construction procedure (the 1) of the said floor structure, (a) is a perspective view, (b) (c) is sectional drawing. It is a figure which shows the construction procedure (the 2) of the said floor structure, (a) is a perspective view, (b) (c) is sectional drawing. It is a figure which shows the construction procedure (the 3) of the said floor structure, (a) is a perspective view, (b) (c) is sectional drawing. It is a figure which shows the construction procedure (the 4) of the said floor structure, (a) is a perspective view, (b) (c) is sectional drawing. It is sectional drawing for demonstrating the modification of the said 1st Embodiment. It is a figure for demonstrating another modification of the said 1st Embodiment, (a) is a perspective view, (b) is a top view. It is sectional drawing which shows the floor structure of the building concerning 2nd Embodiment of this invention.

<First Embodiment>
1 to 3 are a plan view and a sectional view showing a floor structure of a building according to the first embodiment of the present invention. The floor structure of the present embodiment shown in these figures is applied to the first floor entrance of a building such as a house, and the foundation concrete 1 placed in a frame shape to support the building, and the bottom of the entrance The soil concrete 2 that is placed so as to cover the upper surface of the ground E, the boundary foundation 3 that is placed at the boundary between the indoor S1 and the outdoor S2 at the entrance (that is, the position corresponding to the entrance of the building), and the soil concrete 2 And an upper layer member 4 laid on the upper surface of the.

  The foundation concrete 1 is a so-called cloth foundation having a reverse T-shape in cross-section, and is formed in a horizontal direction from a vertical portion 11 formed so as to rise vertically upward from the ground E, and from a lower end of the vertical portion 11 embedded in the ground E. A footing portion 12 formed so as to project is integrally provided. The height of the upper surface of the upright part 11 is set to a position higher than the upper surface of the soil concrete 2. On the upper surface of the upright part 11, a base V made of wooden squares or the like constituting the skeleton of the floor of the building is fixed via anchor bolts or the like not shown.

  The foundation concrete 1 has a plurality of frame sides 1A to 1E combined so as to be orthogonal to each other in the plan view shown in FIG. Of these, the three frame sides 1A, 1B, 1C surrounding the soil concrete 2 as a whole have a U-shape in plan view opened to the outdoor S2 side, and The position corresponding to the open surface is the entrance of the building.

  4 is a plan view showing a state where the upper layer member 4 is removed from FIG. 1, and FIG. 5 is a perspective view thereof. As shown in FIGS. 4 and 5 and FIGS. 2 and 3, the soil concrete 2 is an indoor side soil concrete 21 (covering a portion on the indoor S1 side of the boundary foundation 3 in the ground E under the entrance ( A so-called entrance soil) and an outdoor-side soil concrete 22 (so-called porch soil) that covers a portion of the ground E under the entrance that is closer to the outdoor S2 side than the boundary foundation 3. The peripheral portions of the intersoil concrete 21 and 22 and the upright portion 11 of the foundation concrete 1 surrounding the concrete are coupled to each other by concrete hardening during construction.

  As shown in FIG. 6A described later, the boundary foundation 3 is erected between the position corresponding to the entrance of the building, that is, between the ground E on the indoor S1 side and the ground E on the outdoor S2 side at the entrance. And the two opposite frame sides 1B and 1C of the foundation concrete 1 are connected to each other. The height of the upper surface of the boundary foundation 3 is set at a position lower than the upper surfaces of both the foundation concrete 1 and the soil concrete 2. An entrance door 9 (FIG. 2) is installed on the upper side of the boundary foundation 3.

  The upper layer member 4 is a member constituting the floor surface of the entrance. The mortar layer 41 applied so as to directly cover the upper surface of the soil concrete 2 (indoor side and outdoor side soil concrete 21, 22); The pavement material 42 is disposed and fixed on the upper surface. The pavement 42 can be constituted by, for example, a plurality of stone tiles (or ceramic plates, bricks, etc.) arranged in a certain pattern.

  A moisture-proof sheet 5 is laid on the upper surface of the ground S on the indoor S1 side (between the ground E and the indoor-side soil concrete 21). The moisture-proof sheet 5 is a sheet-like member having a property of blocking moisture contained in the ground E, that is, a moisture-proof property, and is made of, for example, a resin material such as EVA resin (ethylene / vinyl acetate copolymer resin), polyethylene, or polypropylene. Has been. The moisture-proof sheet 5 does not contain an ant-proofing agent, unlike the ant-proof sheet 6 described later.

  An ant-proof sheet 6 is laid on the upper end of the boundary foundation 3 and the upper surface of the ground E adjacent to the indoor S1 side and the outdoor S2 side. That is, the ant-proof sheet 6 is laid in a cross-sectional hat shape so as to cover a predetermined range straddling the upper end portion of the boundary foundation 3, a portion covering the upper surface of the boundary foundation 3, and a side surface of the upper end portion of the boundary foundation 3 Between the indoor side soil concrete 21 or the outdoor side soil concrete 22, and the indoor S1 side ground E (more specifically, the moisture-proof sheet 5 covering the ground E) and the indoor side soil concrete 21. It has a portion to be sandwiched and a portion to be sandwiched between the ground S on the outdoor S2 side and the outdoor-side soil concrete 22. The ant-proof sheet 6 is a sheet-like member having the property of avoiding white ants, that is, ant-proofing properties, and is made of a resin material such as EVA resin, polyethylene, or polypropylene containing an ant-proofing agent. Such an ant-proof sheet 6 has not only ant-proof properties but also moisture-proof properties.

  The ant-proofing agent contained in the ant-proofing sheet 6 is not particularly limited as long as it can exhibit ant-proofing performance. For example, pyrethroid-like drugs (silafluophene, etofenprox, etc.), pyrethroids (bifenthrin) , Cypermestone, Deltamethrin, Permethrin, Permethrin, Aresulin, Tralomethrin, etc., Carbament drugs (Provoxl, Fenobucarb, Sebin, etc.), Chlornicotyl drugs (Imidacloprid, Acetapride, Clothianisin, etc.), Nitroganillin drugs (Dinotefuran, etc.), Organic phosphorus Insecticides (Hoxime, Tetraclocupinphos, Fenitrothion, Probetanfos, etc.), Pyrazole drugs (Fibronyl etc.), Chlorphenol drugs (4-Promo-2,5-dichlorophenol (BDCP) ), Phenyl pyrrole (Kurorufenabiru etc.), Hiba oil, turmeric, capric acid, coconut oil, palm oil, etc., can be used as the termite agents.

  As shown in FIG. 2 to FIG. 5, an ant protection material 7 having physical properties capable of avoiding white ants is arranged at the boundary between the peripheral edge of the soil concrete 2 and the basic concrete 1. Specifically, as shown in FIG. 4 in particular, the termite-proof material 7 includes the inner side surfaces of three frame sides 1A, 1B, and 1C of the foundation concrete 1 that has a U-shape in plan view, and the indoor-side soil concrete 21 along the inner side surfaces. It is mainly arrange | positioned between the peripheral part. In addition, the boundary foundation 3 between the both ends in the longitudinal direction of the boundary foundation 3 and the frame sides 1B and 1C of the foundation concrete 1 facing the boundary foundation 3 in the outdoor side soil concrete 22 so as to be continuous with the portion. The ant-proof material 7 is also disposed between the vicinity of the frame and the frame sides 1C and 1D of the foundation concrete 1.

  A chamfered portion P (see FIGS. 2 and 3) is formed at each of the peripheral edge portion of the soil concrete 2 and the both ends of the boundary foundation 3 corresponding to the arrangement place of the ant-proof material 7. That is, at the upper surface of the peripheral edge portion of the soil concrete 2 along the side surface of the upright portion 11 of the foundation concrete 1, that is, at the corner where the side end surface and the upper surface of the soil concrete 2 intersect, the taper is cut at an angle of 45 degrees. A chamfered portion P is formed. The ant-proof material 7 fills a space formed corresponding to the chamfered portion P, that is, a space surrounded by the upper surface of the chamfered portion P, the lower surface of the upper layer member 4 (mortar layer 41), and the side surface of the upright portion 11. Are arranged as follows. In addition, although detailed illustration is abbreviate | omitted, the same chamfering part is formed also in the both ends of the boundary foundation 3, and the termite prevention material 7 is arrange | positioned in the position corresponding to the said chamfering part.

  The ant-proof material 7 may be of any kind as long as it exhibits ant-proofing performance due to its own physical properties. Used as ant material 7. The termite-proofing material 7 made of such a glass grain material is not galvanized by white ants, and does not have a gap that allows the passage of white ants, so it does not contain an ant-proofing agent. It is possible to exhibit sufficient ant-proof performance. In addition, although a glass grain material can be used as the termite-proof material 7 as it is, you may spray the glass grain material with the solidification agent which couple | bonds particles as needed.

  Next, the construction procedure of the floor structure of the building as described above will be described with reference to FIGS.

  First, as shown in FIG. 6, the foundation concrete 1 is placed so as to surround the ground E under the entrance, and between the two frame sides 1B and 1C facing the foundation concrete 1 (corresponding to the entrance door 9). Boundary foundation 3 is placed at the position where

  Next, as shown in FIG. 7, the moisture-proof sheet 5 is laid so as to cover the entire upper surface of the ground E on the indoor S1 side. Further, the upper end of the boundary foundation 3 (the part exposed from the ground E) and the upper surface of the ground E in a predetermined range on the indoor S1 side adjacent to the boundary foundation 3 (more specifically, the moisture-proof sheet 5 covering the ground E). And the ant-proof sheet | seat 6 is laid so that the upper surface of the ground E of the predetermined range of the outdoor S2 side adjacent to the boundary foundation 3 may be covered.

  Next, the soil concrete 2 is placed so as to cover the ground E on which the moisture-proof sheet 5 and the ant-proof sheet 6 are laid on the upper surface as described above. That is, as shown in FIG. 8, the indoor side soil concrete 21 is placed so as to cover the upper surface of the ground S on the indoor S1 side, and the outdoor side soil concrete 22 is covered so as to cover the upper surface of the ground E on the outdoor S2 side. To cast. As a result, the entire moisture-proof sheet 5 is sandwiched between the indoor-side soil concrete 21 and the ground E. The part of the ant-proof sheet 6 is sandwiched between the indoor and outdoor concretes 21 and 22 and the ground E, while the remaining part (the part covering the upper surface of the boundary foundation 3) is exposed to the outside. Exposed.

  When placing the soil concrete 2 or the like as described above, a chamfered portion P is formed at a place where the termite-proof material 7 is to be disposed (see FIG. 4 and the like). That is, the peripheral edge of the indoor side soil concrete 21 along the inner side surfaces of the three frame sides 1A, 1B, and 1C of the foundation concrete 1, the both ends in the longitudinal direction of the boundary foundation 3, and the boundary foundation 3 in the outdoor side soil concrete 22 A chamfered portion P is formed in the vicinity of each of the two. For example, by placing the earthen concrete 2 in a state in which the mold corresponding to the shape of the chamfered part P is attached to the side surface of each side of the foundation concrete 1, and removing the mold after the earthen concrete 2 is hardened, etc. A chamfered portion P is formed at a place to be arranged 7.

  Next, as shown in FIG. 9, the chamfer P of the soil concrete 2 and the boundary foundation 3 is filled with a termite-proof material 7 made of glass particles. At this time, the filling amount of the glass particle material as the ant-proof material 7 is set to an amount such that the upper surface of the soil concrete 2 and the boundary foundation 3 other than the chamfered portion P and the upper surface of the ant-proof material 7 are flush with each other. . Moreover, in order to harden a glass granular material, a solidifying agent is sprayed on a glass granular material as needed.

  Next, the upper layer member 4 is laid so as to entirely cover the upper surfaces of the soil concrete 2 and the boundary foundation 3. That is, as shown in FIGS. 1 to 3, the upper surface of the soil concrete 2 (the indoor side soil concrete 21 and the outdoor side soil concrete 22) and the upper surface of the boundary foundation 3 in a state covered with the ant-proof sheet 6 together. The upper layer member 4 is formed by applying the mortar layer 41 so as to cover it and disposing the paving material 42 on the upper surface of the mortar layer 41. Thereby, the ant-proof material 7 arrange | positioned in the chamfering parts P, such as dirt concrete 2, is also covered by the upper layer member 4, and the ant-proof material 7 is sealed.

  As explained above, in the floor structure of the building of the first embodiment, the upper layer member 4 is laid so as to directly cover the upper surface of the dirt concrete 2 for the entrance (indoor soil concrete 21 and outdoor soil concrete 22). In addition, a moisture-proof sheet 5 is laid between the upper layer member 4 and the soil concrete 2. And the ant-proof material 7 which consists of a glass particle material is arrange | positioned in the boundary part of the peripheral part of the soil concrete 2 and the upright part 11 of the foundation concrete 1. FIG. According to such a configuration, there is an advantage that the ant-proof performance of the entrance which is difficult to maintain because there is no underfloor space can be maintained over a long period of time.

  That is, since the termite-proof material 7 made of glass particles has physical properties capable of avoiding white ants, such a termite-proof material 7 is a boundary portion between the peripheral edge portion of the interstitial concrete 2 for the entrance and the foundation concrete 1. As a result, the white ants that live in the soil (ground E) cannot climb up through the boundary. For example, in the case of the first embodiment, the peripheral edge portion of the soil concrete 2 that was in close contact with the side surface of the foundation concrete 1 at the time of construction peels off from the side surface of the foundation concrete 1 due to shrinkage of the concrete due to aging, etc. It is assumed that a gap is generated between the peripheral edge of 2 and the side surface of the foundation concrete 1). However, according to the said 1st Embodiment, even if such a clearance gap arises, the creeping-up of a white ant through the said clearance gap is reliably prevented by the said ant preventive material 7. FIG. Moreover, in order to repel white ants by the physical properties inherent in the termite-proofing material 7, for example, a sealing material containing an ant-proofing agent (that is, a substance having a chemical property that repels white ants) is replaced with the above-mentioned termite-proofing material 7. Unlike the case where it is used, the ant-proof performance of the ant-proof material 7 is not impaired even after a long period of use.

  Here, unlike a general room on the first floor of the building, there is no underfloor space (that is, the upper layer member 4 is directly disposed on the upper surface of the soil concrete 2), so the ant-proof material 7 is temporarily supplemented. Alternatively, when maintenance for replacement is attempted, it is necessary to at least partially tear the upper layer member 4. For this reason, it is very difficult (or substantially impossible) to perform maintenance on the termite-proof material 7. On the other hand, in the said 1st Embodiment, since the ant-proof material 7 which consists of a glass grain material which does not impair an ant-proof performance even if it uses for a long period of time is used, the above maintenance becomes unnecessary, A very suitable ant protection structure can be realized at the entrance where there is no underfloor space (which makes maintenance difficult).

  Moreover, in the said 1st Embodiment, the ant-proof material 7 is arrange | positioned in the boundary part of the peripheral part of the soil concrete 2 and the foundation concrete 1 which becomes an intrusion path | route of a white ant easily, and the penetration | invasion of a white ant into a building is prevented by it. Therefore, it is not necessary to take special measures for ant protection at other places. For example, in order to prevent the entry of white ants from the boundary without using the ant-proofing material 7, it is conceivable to take measures to prevent the white ants from creeping out from the ground E in the first place. For example, it is necessary to completely replace the moisture-proof sheet 5 laid between the ground E and the soil concrete 2 with an ant-proof sheet provided with ant-proof properties (for example, an ant-proofing agent is kneaded). become. However, in this case, it is necessary to lay an expensive ant-proof sheet over a wide area compared to the moisture-proof sheet 5, which increases the cost and prevents the ant-proof sheet. There is also a concern that the ant effect may decrease due to aging. On the other hand, in the said 1st Embodiment, the ant-proof material 7 which consists of a glass particle material is arrange | positioned in the boundary part of the peripheral part of the soil concrete 2 and the foundation concrete 1, and the invasion path | route above the ground E is ensured. Since it blocks, it becomes possible to cover the ground E using the relatively inexpensive moisture-proof sheet 5, and it is possible to maintain good ant-proof performance over a long period of time.

  Moreover, in the said 1st Embodiment, the boundary foundation 3 is driven in the position corresponding to the entrance door 9 (FIG. 2) between the two frame sides 1B and 1C which the basic concrete 1 opposes. An ant-proof sheet 6 having moisture-proof and ant-proof properties is laid on the upper end and the upper surface of the ground E adjacent to the indoor S1 and the outdoor S2. According to such a configuration, the white ants intrude through the boundary portion between the boundary foundation 3 and the indoor-side soil concrete 21 and the boundary portion between the boundary foundation 3 and the outdoor-side soil concrete 22. Can be effectively prevented. Moreover, since the ant-proof sheet | seat 6 is used only in the boundary foundation 3 and its vicinity, a cost increase can be suppressed to the minimum.

  In addition, in the said 1st Embodiment, although the chamfering part P was formed in the upper surface of the peripheral part of the soil concrete 2, and the ant-proof material 7 was arrange | positioned so that the space | gap corresponding to the said chamfering part P might be filled, the ant-proof material 7 However, the arrangement method is not limited to this. For example, as shown in FIG. 10, the soil concrete 2 in a state where the entire side end surface of the soil concrete 2 (indoor side soil concrete 21 in FIG. 10) is separated from the side surface of the upright portion 11 of the foundation concrete 1 by a predetermined distance. The groove part Q penetrating in the vertical direction (thickness direction) may be formed between the two, and the termite-proof material 7 may be disposed so as to fill the groove part Q. Thus, when the ant-proof material 7 is arranged over the entire thickness of the soil concrete 2, it is possible to more reliably prevent white ants from entering through the boundary between the peripheral edge of the soil concrete 2 and the foundation concrete 1. There are advantages. On the other hand, when the termite-proof material 7 is disposed only on the chamfered portion P formed on the upper surface of the peripheral edge of the soil concrete 2 as in the first embodiment, the amount of the termite-proof material 7 used is as much as possible. There is an advantage that necessary and sufficient ant-proofing performance can be secured.

  Moreover, in the said 1st Embodiment, the boundary foundation 3 is provided so that two opposing frame sides 1B and 1C in the foundation concrete 1 may be connected, The entrance door 9 (FIG. 2) above this boundary foundation 3 is provided. In the case where the distance between the two frame sides 1B and 1C is relatively large, for example, the boundary foundation should be provided only at the intermediate portion between the frame sides 1B and 1C. There is. For example, the foundation concrete 1 shown in FIGS. 11 (a) and 11 (b) includes an additional foundation 1F protruding from the frame sides 1B to 1C in addition to the frame sides 1A to 1E similar to the first embodiment, And an additional foundation 1G protruding from the side 1C toward 1B. A boundary foundation 3 'is provided between the pair of additional foundations 1F and 1C. In the case of such a structure, the termite-proof material 7 includes the boundary portions between the three frame sides 1A, 1B, and 1C of the foundation concrete 1 and the indoor-side soil concrete 21 and the periphery of the additional foundations 1F and 1G (that is, the additional foundation 1F). , 1G and the boundary between the indoor side soil concrete 21, the boundary between the additional foundations 1F and 1G and the outdoor side soil concrete 22, and both ends in the longitudinal direction of the boundary foundation 3 ′) are desirable. .

  Moreover, in the said embodiment, although the upper surface of the soil concrete 2 for entrance was all covered with the upper layer member 4 which consists of the mortar layer 41 and the paving material 42, the floor structure of an entrance is not restricted to this. . For example, depending on a building, a part of the upper surface of the indoor-side soil concrete 21 at the entrance may be provided with a high floor portion called a so-called rising wall. In such a high floor portion, an upper layer member made of, for example, a heat insulating material or a flooring material is disposed directly (without separating a space) on the upper surface of the indoor-side soil concrete 21. Therefore, it is desirable to apply an ant-proofing treatment using the ant-proofing material 7 similar to that of the first embodiment also to the high floor portion provided with such an upper layer member (heat insulating material and flooring material).

Second Embodiment
In the said 1st Embodiment, although the example which applied the floor structure of this invention to the entrance which is one of the living spaces of a building was demonstrated, the floor structure of this invention is a soil concrete and an upper layer member (floor surface of living space) As long as the space is not formed with the member), the present invention is applicable not only to the entrance. For example, on the first floor of a building such as a house, a room (hereinafter referred to as a low floor room) whose floor surface is designed lower than usual for the purpose of soundproofing may be provided. It is possible to apply the floor structure of the present invention to a room. Below, the specific example at the time of applying the floor structure of this invention to a low floor room is demonstrated as 2nd Embodiment of this invention using FIG.

  As shown in FIG. 12, the floor structure of the second embodiment includes a soil concrete 52 placed so as to cover the upper surface of the ground E below the low floor room, and a foundation concrete placed around the soil concrete 52. 51, a moisture-proof sheet 55 laid between the ground E and the soil concrete 52, and an upper layer member 54 that is laid directly (without a space) on the top surface of the soil concrete 52 and constitutes the floor surface of the low-floor room. And.

  The foundation concrete 51 is a fabric foundation similar to the foundation concrete 1 of the first embodiment, and includes a vertical portion 61 that extends in the vertical direction and a footing portion 62 that projects horizontally from the lower end of the vertical portion 61. Yes.

  The soil concrete 52 is of a type called so-called reinforced soil. That is, the soil concrete 52 has a thickened portion 52a having a relatively large thickness at the peripheral edge thereof. The outer peripheral surface of the thickened portion 52 a is coupled to the upright portion 61 of the foundation concrete 1, and the lower surface of the thickened portion 52 a is placed on the upper surface of the footing portion 62 of the basic concrete 1 via the moisture-proof sheet 55. Yes.

  A base V is fixed to the upper surface of the upright portion 61 of the foundation concrete 51. The lower end of the base material 80 is fixed to the base V. A heat insulating material 81 made of, for example, a foamable resin is attached to the inner side surface (inner side surface) of the upright portion 61. A heat insulating material 82 made of, for example, glass wool and a wall material 83 covering the heat insulating material 82 are laminated and attached to the inner side surfaces of the heat insulating material 81 and the base material 80.

  The upper layer member 54 is attached to the upper surface of the base material 72, the heat insulating material 71 made of foamable resin laid so as to directly cover the upper surface of the soil concrete 52, the base material 72 attached to the upper surface of the heat insulating material 71. Flooring material 73. In addition, through holes that penetrate the heat insulating material 71 in the thickness direction are formed at a plurality of locations of the heat insulating material 71, and level adjusters (not shown) are disposed in the through holes. The base material 72 is attached to the upper surface of the level adjuster adjusted to be the same height as the upper surface of the heat insulating material 71.

  At the boundary between the peripheral portion (thickened portion 52a) of the soil concrete 52 and the upright portion 61 of the foundation concrete 51, an ant protection material 57 made of the same glass particle material as the ant protection material 7 of the first embodiment is provided. Is arranged. That is, a chamfered portion P is formed on the upper surface of the peripheral portion of the soil concrete 52 along the inner surface of the upright portion 61 (the corner portion where the side end surface and the upper surface of the soil concrete 52 intersect), and corresponds to the chamfered portion P. The ant-proof material 57 is arranged so as to fill a space, that is, a space surrounded by the upper surface of the chamfered portion P, the lower surface of the heat insulating material 81, and the inner surface of the upright portion 61.

  As explained above, in the floor structure of the second embodiment, the ant-proof material 57 made of glass granules is arranged at the boundary between the peripheral edge of the soil concrete 52 for the low floor room and the foundation concrete 51. As a result, the creeping-up of white ants through the boundary portion can be reliably prevented by the ant-proof material 57. Moreover, since the termite-proof material 57 repels white ants due to its own physical properties, it exhibits sufficient termite-proof performance over a long period of time without maintenance. For this reason, the ant-proof structure very suitable for the low floor room where there is no underfloor space is realized.

  In the second embodiment, the chamfered portion P is formed on the upper surface of the peripheral portion of the soil concrete 52, and the ant-proof material 57 is disposed so as to fill the gap corresponding to the chamfered portion P, as shown in FIG. As in the example described above, the entire side end surface of the interstitial concrete 52 is separated from the inner side surface of the foundation concrete 51, and the ant-proof material 57 is arranged so as to fill the groove portion (penetrating vertically) formed thereby. Also good.

  Moreover, in the said 1st Embodiment and 2nd Embodiment, the ant-proof material which consists of a glass granule (glass granule material) in the boundary part of the peripheral part of the soil concrete 2 (52) and foundation concrete 1 (51). 7 (57) is arranged, but the termite-proofing material that can be used in the present invention is not limited to glass particles as long as it has physical properties capable of avoiding white ants. For example, a material having a hardness equal to or higher than that of glass (a hardness that is high enough to prevent white ants from biting) may be finely pulverized and used as an ant-proof material.

  Furthermore, it is also possible to use a material obtained by crushing a specific mineral as a termite-proof material. For example, borate minerals (colemanite), Wakkanai diatom shale, basalt, and granite all exhibit ant-repellent effects based on their own physical properties (for example, the ability to deprive the body of white ants). Has been confirmed. Therefore, it is also possible to use a crushed material of any one or more of these minerals as a termite-proof material.

DESCRIPTION OF SYMBOLS 1 Basic concrete 2 Interstitial concrete 3 Boundary foundation 4 Upper-layer member 5 Moisture-proof sheet 6 Ant-proof sheet 7 Ant-proof material 41 Mortar layer 42 Pavement material 51 Basic concrete 52 Inter-concrete concrete 54 Upper-layer member 55 Moisture-proof sheet 57 Insect-proof material 71 Heat-insulating material 73 Flooring Material E Ground P Chamfer

Claims (6)

The floor structure of the building,
Soil concrete covering the upper surface of the ground,
Foundation concrete that is provided around the soil concrete and is erected upward from the ground to support the building;
An upper layer member arranged directly on the upper surface of the soil concrete and constituting the floor surface of the living space of the building;
A moisture-proof sheet having moisture-proof properties laid between the ground and soil concrete;
A floor structure of a building, comprising: an ant-proof material disposed at a boundary between the peripheral portion of the soil concrete and the foundation concrete and having a physical property capable of avoiding white ants. In the building floor structure according to claim 1,
The floor structure of a building, wherein the termite-proofing material includes a glass granule or a crushed material of any one of borate minerals, Wakkanai diatom shale, basalt, and granite. In the building floor structure according to claim 1 or 2,
A floor of a building, wherein a chamfered portion is formed on an upper surface of a peripheral edge portion of the soil concrete along a side surface of the foundation concrete, and the termite-proofing material is disposed so as to fill a gap corresponding to the chamfered portion. Construction. In the floor structure of the building of any one of Claims 1-3,
The dirt concrete is dirt concrete for the entrance that covers the ground under the entrance of the building,
The floor structure of a building, wherein the upper layer member includes a mortar layer and a pavement material laid on the upper surface of the dirt concrete for the entrance. In the building floor structure according to claim 4,
Further comprising a boundary foundation disposed between the indoor ground and the outdoor ground at the entrance;
The interstitial concrete for the entrance has indoor side interstitial concrete that covers the ground on the indoor side from the boundary foundation, and outdoor side interstitial concrete that covers the ground on the outdoor side than the boundary foundation,
A floor structure of a building, characterized in that at least an upper end portion of the boundary foundation portion and an indoor side and an outdoor side ground surface adjacent thereto are provided with a moistureproof and antproofing antproof sheet. . In the floor structure of the building of any one of Claims 1-3,
The interstitial concrete is interstitial concrete for a low-floor room that covers the ground below the low-floor room designed to have a floor surface lower than usual on the first floor of the building,
The floor structure of a building, wherein the upper layer member includes a heat insulating material and a flooring material laid on the upper surface of the soil concrete for the low floor room.

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