JPH0719415U - Structure of foundation and foundation in wooden building - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] To prevent the moisture from the foundation to the foundation and to provide a structure of the foundation and the foundation which has excellent ventilation under the floor. [Structure] The cloth foundation 10 formed on the outer periphery of a building is formed on the same plane without notching the upper surface and the side surfaces are closed. The cloth foundation 10 has a moisture prevention plate 1 having an upper surface protruding.
7, 19 are arranged at appropriate intervals. Further, by mounting the base 11 on the moisture prevention plate 17, the space formed between the moisture prevention plates 17 and 19 and the cloth foundation 10 and the base 11 serves as a ventilation port 29.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to the structure of the foundation and the foundation of a wooden building, and particularly to the structure of the foundation and the foundation of a wooden building that prevents moisture from the foundation and has good ventilation under the floor.

[0002]

[Prior art]

 In a wooden building, a foundation is installed to fix the building to the ground, and a foundation is installed on this foundation, and the foundation and the foundation are tightly connected with anchor bolts to prevent lifting or horizontal movement due to wind or earthquake. . FIG. 7 is a perspective view for explaining main parts showing a structure of a foundation and a base in a conventional wooden building. That is, the foundation 3 is installed on the cloth foundation 1, and the pillars 5 are assembled on the foundation 3 to construct the building.

The cloth foundation 1 has a structure that is safe not only against upper loads but also against horizontal forces such as earthquakes and winds, and also has a normal concrete structure so that the foundation or the like will not rot due to moisture from the ground. A ventilation port 7 is provided for each. The foundation 3 is installed on the foundation 1 and prevents uneven settlement of the pillars 5 and distributes the load from the top to the foundation. An anchor bolt 9 embedded in the foundation to prevent the foundation 5 from rising or moving. Tied up by. The anchor bolt 9 is buried near the mounting position of the pillar 5 and the joint position of the base in order to securely connect the base and the base.

[0004]

[Problems to be solved by the device]

 As described above, the base 3 is directly installed on the cloth foundation 1 and is tightly connected by the anchor bolts 9. Moreover, since the foundation 1 has a concrete structure, it tends to have moisture. The moisture of the cloth foundation 1 is directly transmitted to the base 3. In particular, in recent years, the development of residential areas has progressed, and soft ground and somewhat soft ground such as landfills have also been developed as residential areas, and the base 3 is more susceptible to moisture. In addition, a large amount of water vapor generated from the daily lives of residents is pushed toward the inside of the walls, ceiling, and floor, that is, pushed out to the outside where the humidity is low. This leads to rotting of the wood around the base and stuffiness.

Further, in order to prevent moisture on the base or under the floor, ventilation in the building must be improved. Therefore, the cloth foundation 1 is provided with a ventilation port 7. The ventilation openings 7 are set to have a size of 300 cm ² or more at intervals of 5 m or less, but from the viewpoint of ventilation, the more ventilation openings 7 are, the more preferable. However, the more ventilation holes are provided, the more adverse the impact will be on the strength of the fabric foundation such as earthquake resistance. In order to maintain uniform strength in order to improve the seismic resistance of the cloth foundation, it is preferable that there is no ventilation port. As described above, in the conventional structure in which the base is directly placed on the foundation, the wood around the base is apt to have moisture, and the ventilation port has a problem that the base is adversely affected, so that only a minimum necessary amount is provided. In addition, since the cloth foundation forms a ventilation port, there is a problem in that it takes much time for construction work.

The present invention has been made in view of the current situation, and it is an object of the present invention to provide a structure of a foundation and a base that prevents moisture under the floor and has excellent air permeability.

[0007]

[Means for Solving the Problems]

 The present invention has the following configuration to achieve the above object. That is, in a structure in which the foundation is installed on the foundation surface and the foundation is tightly bound by anchor bolts embedded in the foundation, the cloth foundation formed on the outer periphery is formed in the same plane without notching the upper surface. Moisture-preventing plates whose upper surface protrudes are arranged at appropriate intervals on the cloth foundation, and by installing a foundation on the moisture-preventing board, a space formed between the moisture-preventing boards and between the cloth foundation and the foundation is provided. It is characterized by being a ventilation port. It is desirable that the moisture blocking plate has a bottom surface embedded in the cloth foundation and an upper surface protruding from the cloth foundation. Further, it is preferable that the moisture prevention plate is disposed below the pillar. Further, at the position of the anchor bolt, it is desirable to dispose them on both sides of the anchor bolt.

[0008]

The moisture prevention plate works to prevent the moisture from the foundation by lifting the base from the foundation, and the void formed between the moisture prevention plates serves as a ventilation port.

[0009]

【Example】

 Hereinafter, the present invention will be described in detail based on embodiments. FIG. 1 is a perspective view of an essential part for explaining the structure of a cloth foundation and a base according to the present invention, FIG. 2 is a front view of the same, and FIG. 3 is a sectional view. In the figure, 10 is a cloth foundation formed on the outer periphery of a wooden building, 11 is a base, 13 is a pillar, 15 is an anchor bolt, and 17 and 19 are moisture prevention plates. As in the conventional case, the cloth foundation 10 is formed by arranging burial stones at the root cutting bottom, and throwing abandoned concrete 21 thereon. In the present invention, unlike the conventional case, the cloth foundation 10 is closed without providing a notch for providing a ventilation port. In this invention, since the entire upper surface of the cloth foundation 10 can be made to be the same horizontal surface, the reinforcing bars can be evenly inserted horizontally.

As shown in FIG. 4, the moisture prevention plate 17 is a flat rectangular plate-like body, and a large number of grooves 23 are formed in parallel on the bottom surface embedded in the cloth foundation 10. On the other hand, as shown in FIG. 5, the moisture prevention plate 19 has a groove 25 formed in the lower surface and a notch 27 for inserting an anchor bolt in the side surface. It is possible to arrange the moisture prevention plates 19 on both sides of the anchor bolt and insert the anchor bolt into the notch 27 for use. Although the material of the moisture prevention plates 17 and 19 is not particularly limited, it is preferably formed of stone or ceramic.

When the moisture prevention plates 17 and 19 are arranged on the cloth base 10, the ventilation holes 29 can be defined by the space between the moisture prevention plates and the upper surface of the cloth base 10 and the lower surface of the base 11. In this way, by interposing the moisture prevention plates 17 and 19 between the base 11 and the cloth foundation 10, the moisture of the base 11 is prevented and the ventilation port 29 is formed. Since a large number of ventilation holes 29 are formed, the overall area can be increased as compared with the ventilation holes formed in the cloth foundation.

In order to install the base 11 on the cloth base 10, after the concrete of the cloth base 10 is poured and the anchor bolts 15 are embedded, the lower portions of the moisture prevention plates 17 and 19 are embedded at appropriate positions before being solidified. It is arranged by. Then, after the concrete is solidified, the base 11 may be set and fixed by the anchor bolts 15. By installing the base 11, a ventilation port 29 is formed between each of the moisture prevention plates 17 and 19. After that, the pillar 13 may be assembled in the same manner as the conventional method.

The size of the moisture prevention plate 17 is, for example, two kinds of thickness dimension of 30 mm, width dimension of 120 mm, length dimension of 310 mm, or length dimension of 190 mm. The dimensions are a thickness dimension of 30 mm, a width dimension (direction of the surface where the notch 27 is formed) 120 mm, and a length dimension (direction of the groove 25) 60 mm, which are embedded in the cloth foundation 10 at a depth of about 10 mm, respectively. When the remaining about 20 mm is provided so as to project, the ventilation port 29 has the following size as a whole. That is, when the moisture prevention plates 17 and 19 having the above-described size are alternately arranged every 90 cm, when the length of the cloth foundation 10 is 180 cm, the moisture prevention plate 17 is about 286 cm ² when the length is 310 mm. If 17 has a length of 190 mm, a ventilation port of about 310 cm ² will be formed. Therefore, assuming that the entire length of the cloth foundation 10 is 30 m, when the moisture prevention plate 17 has a length of 310 mm, the ventilation area is about 4700 cm ² , and when the moisture prevention plate 17 has a length of 190 mm, the ventilation area is about 5300 cm ^2. The mouth will be formed. On the other hand, in the conventional structure, a ventilation opening of 300 cm ² is formed every 5 m, and at 30 m, the area is only 1800 cm ² . Further, in this invention, the area of the formed ventilation port can be increased or decreased by adjusting the protruding height of the moisture prevention plates 17 and 19.

The grooves 23 and 25 of the moisture prevention plates 17 and 19 may be formed on both upper and lower surfaces, or may be omitted. In addition, the shapes and sizes of the grooves 23 and 25 can be arbitrarily determined. Further, instead of the notch 27, the moisture prevention plate 19 may be formed with a through hole through which the anchor bolt is inserted, or the notch 27 may be omitted so that the notch 27 is simply disposed on both sides of the anchor bolt. Good. Further, the moisture prevention plate may be simply installed on the upper surface of the cloth base without being buried in the cloth base.

[0015]

[Effect of device]

 As is clear from the above description, according to the configuration of the present invention, the base is not directly installed on the foundation, so that it does not rot due to the moisture from the foundation, and the ventilation of a large area as a whole is provided between the moisture prevention plates. Since the mouth is formed, further moisture from the foundation is prevented. Further, since the cloth foundation can be a closed structure as a whole, the formwork can be easily assembled and the strength of the cloth foundation itself can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view for explaining an essential part showing a structure of a cloth foundation and a base according to the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a sectional view of the same.

FIG. 4 is a bottom perspective view showing an example of a moisture prevention plate.

FIG. 5 is a top perspective view showing an example of a moisture prevention plate.

FIG. 6 is a perspective view of an essential part for explaining the structure of a conventional base and foundation.

[Explanation of symbols]

 10 Cloth Foundation 11 Base 13 Pillar 15 Anchor Bolt 17 Moisture Prevention Plate 19 Moisture Prevention Plate 23 Groove 25 Groove 27 Notch 29 Ventilation Port

Claims (2)

[Scope of utility model registration request] 1. In a structure in which a foundation is installed on a foundation surface and anchor foundations embedded in the foundation are used to tightly connect the foundation, the cloth foundation formed on the outer periphery has an upper surface formed in the same plane, and the upper surface is projected onto the cloth foundation. A wooden structure characterized in that the moisture prevention plates are arranged at appropriate intervals, and the base is installed on the moisture prevention plates so that the space formed between the moisture prevention plates, the cloth foundation and the base serves as a ventilation port. The structure of foundations and foundations in buildings. 2. The structure of a foundation and a foundation in a wooden building according to claim 1, wherein the moisture prevention plate has a bottom surface embedded in a cloth foundation and an upper surface protruding from the cloth foundation.