JPH0567634U - Tightening structure of foundation and foundation in building - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] Not only can the foundation and foundation be firmly bound, but also the foundation can be easily separated and floated up so that the foundation can be easily raised. It aims to provide a tight-knit structure of the foundation and the foundation in. [Structure] An underlayment material 17 is interposed between a foundation 15 and a base 19, and the underlayment material 17 is tightly connected with an anchor bolt 21 embedded in the foundation, and the base 19 is tightly attached to the underlayment material 17. And, H-section steel can be used as the underlay material.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a tight-bonding structure of a foundation and a foundation in a building, and more particularly to a tight-bonding structure of the foundation and a foundation in a building that allows the building to be easily and safely separated from the foundation.

[0002]

[Prior Art]

 In the case of a wooden building, a foundation is provided to fix the building to the ground, and a foundation is placed on this foundation, and the foundation and the foundation are tightly connected with anchor bolts to prevent lifting and horizontal movement due to wind and earthquake. . 5 and 6 are explanatory views showing a connection structure of a foundation and a foundation in a conventional wooden building, FIG. 5 is an explanatory view for the front showing the main structure and the foundation, and FIG. 6 is a foundation and the foundation. FIG.

That is, the foundation 5 is placed on the cloth foundation 1 and the independent foundation 3, and the pillars 7 are assembled on the foundation 5 to construct the building. The cloth foundation 1 and the independent foundation 3 have a structure that is safe not only for upper loads but also for horizontal forces such as earthquakes and winds, and that the foundation etc. will not rot due to moisture from the ground. A ventilation port 8 is provided in the. The foundation 5 is installed on the foundation to prevent uneven settlement of the pillars and distribute the load from the top to the foundation. The foundation 5 is put in the corners of the foundation 5 and the main partition mounting parts for reinforcement, It is fastened by anchor bolts 10 embedded in the foundation to prevent the fabric foundation 1 and the independent foundation 3 from rising and moving. A large number of anchor bolts 10 are embedded in the vicinity of the mounting position of the pillar 7 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 foundation and the base are always integrated because they are tightly connected by the many anchor bolts 10, and the foundation and the base are not separated. However, there were the following problems in the conventional tightly-bonded structure between the foundation and the foundation. In other words, in recent years, development of residential areas has progressed and land prices have skyrocketed. Therefore, even soft ground such as soft land or landfill land must be developed as a residential area. In such a ground, there is a risk of unequal settlement in a normal foundation structure in which a burial stone 11 is placed at the root cutting bottom, and a scrap concrete 13 is struck on it. If the settlement does not occur, the structure itself will be tilted, it will be difficult to open and close doors and windows, and it will cause rain leakage, which will have a great impact on the structure. Therefore, in such ground, it is necessary to drive foundation piles that reach hard ground deep.

However, strengthening the ground by foundation piles requires a great deal of cost, and the construction cost rises accordingly. In addition, the foundation structure is not always designed based on the ground survey results, and it is often the case that the foundation structure is constructed without knowing the ground condition accurately. Since the state of the ground cannot be observed directly from the ground surface, it is not possible to predict the degree of differential settlement, and it is difficult to predict the differential settlement itself.

Therefore, in order to cure the inclination of the building caused by the uneven settlement, the foundation 5 is separated from the cloth foundation 1 and the independent foundation 3, the building is floated, and the upper surface of the foundation is repaired horizontally. It is necessary to re-tie the foundation with the foundation again. Conventionally, in order to levitate a building, first, the cloth foundation 1, the independent foundation 3 and the base must be separated. In order to separate the base 5, it is necessary to break the part of the cloth foundation 1 in which the anchor bolt 10 is embedded, expose the anchor bolt, and cut the anchor bolt. Further, there is a problem that the wall must be broken in order to tightly connect the base 5 with the new anchor bolt after raising the foundation.

Further, if the ground is a little lower than the surrounding area, a building may be damaged by inundation above or below the floor due to heavy rain caused by the rainy season or typhoon. Even in such a case, since it is difficult to separate the foundation from the foundation as described above, it is impossible to prevent the damage by raising the foundation. Furthermore, even if the building is moved horizontally, the foundation and the foundation must be separated, but it is difficult to separate the foundation and the foundation as described above. In this way, in the conventional tight-bonded structure of the foundation and the foundation, separation is not considered at all, so it is extremely difficult to separate the foundation from the foundation after construction, and many days are required for the construction. In addition to the above, there was a problem that it was very expensive.

The present invention has been made in view of the current situation, and not only can the foundation and the foundation be firmly bound, but also the foundation can be easily separated and floated to easily raise the foundation. The purpose is to provide a tight-knit structure of the foundation and the foundation of the building.

[0009]

[Means for Solving the Problems]

 The present invention has the following configuration in order to achieve the above object. That is, the underlayment material is interposed between the foundation and the base, and the underlayment material is tightly connected by the anchor bolts embedded in the foundation, and the base is tightly attached to the underlayment material. An H-section steel can be used as the underlay material.

[0010]

[Function of the device]

 Since the base is tightly connected to the foundation through the underlay, and the upper part of the anchor bolt embedded in the foundation is exposed from the underlay, the nut can be easily loosened. Therefore, if a jack is set on the lower surface of the underlaying material and driven, the underlaying material floats up and can be easily separated from the foundation. The underlayment can be partially or wholly levitated, and the underlayment also acts as a stiffener for the base when levitating.

[0011]

【Example】

 The present invention will be described in detail below based on embodiments. FIG. 1 is a perspective view of a main part for explaining the binding structure of a cloth foundation and a base according to the present invention, FIG. 2 is a perspective view of the main part for explaining the binding structure of an independent base and a base, and FIGS. FIG. 7 is a front view of an essential part for explanation showing a method of separating the foundation and the base. In the figure, 15 is a cloth foundation, 17 is an underlay material, 19 is a base, 21 is an anchor bolt, and 23 is a through bolt.

As in the conventional case, the cloth foundation 15 is formed by arranging the burial stones 25 on the root cutting bottom, crushing gravel into the gravel, and throwing the waste concrete 27 on the gravel. The cloth foundation 15 is provided with ventilation openings 29 at regular intervals. A mesh body made of metal or synthetic resin is detachably attached to the ventilation port 29, and by removing the mesh body, it can be used as an insertion port for a jack to be described later. In the embodiment, the underlay material 17 is made of H-shaped steel, and is tightly connected by screwing a nut 18 into an anchor bolt 21 embedded in the cloth foundation 15. The threaded portion at the upper portion of the anchor bolt 21 is projected, and the amount of this projection is a dimension that allows the cloth foundation 15 to be raised. Therefore, it is desirable that the threaded portion of the anchor bolt 21 is projected as much as possible. A base 19 is installed on the underlay material 17, and the underlay material 17 and the base 19 are tightly connected by a through bolt 23.

The outer surface of the underlayment 17 is covered with a cover plate 30. An opening / closing plate 31 such as a door or a fitting plate is provided at a portion of the cover plate 30 where the anchor bolt 21 is located, and can be opened as needed. Therefore, when the opening / closing plate 31 is opened, the upper portion of the anchor bolt 21 is exposed, and the nut 18 tightly connected can be loosened. It does not matter whether the cover plate 30 is made of wood or metal, but it is preferable that the cover plate 30 is formed so as to have a continuous surface of the cloth foundation 15 or the outer wall surface.

As described above, according to the present invention, the base 19 is not directly bonded to the cloth foundation 15 but is bonded to the cloth foundation 15 via the underlay material 17. Therefore, if the nut 18 of the anchor bolt 21 is loosened and positioned above, the underlayment material 17 is only placed on the cloth foundation 15, and the underlayment material 17 is easily floated from the cloth foundation 15. be able to. The underlay material 17 may be H-shaped steel, I-shaped steel, groove-shaped steel, or a quadrangular material. Further, the cover plate 30 can be omitted as appropriate.

FIG. 2 shows an embodiment of the independent foundation 33, and the base 35 is tightly connected to the independent foundation 33 via the underlay material 37. That is, the anchor bolt 39 is embedded in the independent foundation 33, and the anchor bolt 39 is tightly connected by being inserted into the underlay material 37 set on the independent foundation 33. The upper threaded portion of the anchor bolt 39 projects like the anchor bolt 21 embedded in the cloth foundation 15 described above. The underlay material 37 and the base 35 are tightly connected by a through bolt 40. Therefore, by loosening the nut 38 of the anchor bolt 39 and floating the underlayment 37, the underlayment 37 and the independent foundation 33 can be separated. It is desirable that one side of the underlay material 37 of the independent foundation 33 is squeezed out from the side surface of the independent foundation 33 so that it can be used as a contact portion of a jack when it is floated.

Next, a method for raising the foundation will be described with reference to FIGS. 3 and 4. First, when the covering plate 30 is attached to the underlayment material 17 at the portion to be raised, the opening / closing plate 31 is opened or the underlayment material 17 itself is removed to expose the ridge portion of the anchor bolt 21 and tightly bond them. Loosen the nut 18 to an appropriate height position. On the other hand, the net in the ventilation port 29 is removed and opened, and the jack 41 is set in the ventilation port 29. Next, when the jack 41 is driven, the nut of the anchor bolt 21 is already loosened, so that the underlayment material 17 floats and can be separated from the cloth foundation 15. The driving of the jack 41 is stopped when the underlayment material 17 floats up to a predetermined height. Further, concrete may be poured between the cloth foundation 15 and the underlayment 17 while being supported by the jack 41, the jack 41 may be removed after the concrete is solidified, and the nut 18 of the anchor bolt 21 may be tightened. Since the base 19 is tightly bound to the underlayment 17 even when the underlayment 17 is levitated, the cloth foundation 15 can be safely and easily and quickly raised.

When it is necessary to partially raise the height due to differential settlement, it is sufficient to loosen the nut 18 of the anchor bolt 21 in the portion necessary for raising the height, and when raising the entire foundation, the entire anchor is raised. Loosen the nuts on the bolts and lift them with a jack. Further, in the independent foundation 33, a jack is set on a portion of the underlayment material 37 protruding from the independent foundation 33, the underlayment material 37 is levitated by the same procedure as in the cloth foundation 15, and concrete is poured between the underlayment material 37 and the independent foundation 33. Therefore, it can be raised.

As is apparent from the above-described embodiment, the screw portion of the anchor bolt embedded in the foundation can be exposed and the nut can be loosened without breaking the foundation or the wall as in the conventional case. Can be easily floated and separated from the foundation. Therefore, it is possible to easily raise the volume by pouring concrete between the underlayment material and the foundation surface. On the other hand, since the foundation and the foundation can be separated, it is possible to easily move the building.

[0019]

[Effect of the device]

 In this invention, since the underlayment material is interposed between the foundation and the foundation as described above, the foundation and the underlayment material are tightly connected to each other, and the foundation is tightly attached to the underlayment material. The underlayment can be easily levitated by loosening the. It is extremely easy, safe and quick to partially raise the foundation to correct the inclination of the building by floating the underlayment material or to raise the entire foundation to prevent inundation under the floor or on the floor. In addition, since the base floats through the underlay, the stress from the jack to the base is dispersed, and the base is not broken or damaged. In addition, even if there is uneven settlement, the foundation can be raised so that the building can be used comfortably and can last a long time. In addition, since it is possible to construct a soft ground or a slightly soft ground such as a landfill without driving the foundation piles, it is possible to reduce the construction cost, which is a great practical effect. .

[Brief description of drawings]

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

FIG. 2 is a perspective view of an essential part for explaining the tightly bound structure of the independent foundation and the base.

FIG. 3 is a perspective view for explaining an essential part in a state where a nut is loosened and a jack is set.

FIG. 4 is a front view of an essential part for explaining a state where an underlayment material is floated and separated from a foundation.

FIG. 5 is a front view showing a conventional main body structure and foundation.

FIG. 6 is a cross-sectional view of a main part of a conventional base and foundation.

[Explanation of symbols]

 15 Cloth foundation 17 Underlay material 19 Base 21 Anchor bolt 23 Through bolt 29 Ventilation port 33 Independent foundation 35 Base 37 Underlay material 39 Anchor bolt 40 Through bolt 41 Jack

Claims (2)

[Scope of utility model registration request] 1. An underlayment material is interposed between a foundation and a foundation, and the underlayment material is tightly bound by anchor bolts embedded in the foundation, and the foundation is tightly bound with the underlayment material. Tight structure. 2. The binding structure for a foundation and a foundation in a building according to claim 1, wherein the underlayment material is H-shaped steel.