JP2596589Y2 - Foundation structure - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foundation structure constructed on the ground of a building, and more particularly to a foundation structure capable of easily adjusting a horizontal level of a foundation bottom.

[0002]

2. Description of the Related Art In order to construct a building in a stable state, it is necessary to construct a foundation on the ground stably and accurately. Such foundations can be constructed by casting concrete at the construction site to form the foundation, or in advance at the factory stage to simplify and speed up the construction of the foundation at the construction site. 2. Description of the Related Art There is known a method in which constituent members are manufactured and combined at a construction site, and the combined portion is solidified by mortar and connected.

[0003] In the type in which a foundation structure is preliminarily manufactured at a factory stage as in the latter, a precast (PC) foundation bottom is installed at a predetermined location on the ground, and a foundation beam is laid across the foundation bottom. Then, these are fixedly connected by filling with mortar or the like to construct a foundation.

In the construction of such a foundation, it is necessary to set the foundation bottom accurately in a horizontal state. That is, when the foundation bottom is in an inclined state, the foundation beams installed on the upper surface cannot be kept horizontal, and it is difficult to accurately construct the foundation horizontally as a whole.

[0005] Therefore, in order to properly set the base portion in a horizontal state, the base plate is lifted, and spacer members of various thicknesses are interposed on the bottom surface side. Adjustment work has been done.

[0006]

However, as described above, it is extremely difficult to lift the base floor after installing the base floor and to insert spacer members of various thicknesses on the bottom side of the base floor. There was a problem that it took a long time to install the bottom plate.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to make it possible to adjust the horizontal level of a foundation bottom with simple members and simple operations, and to construct a foundation part to be constructed. An object of the present invention is to provide a basic structure capable of ensuring a proper state of the overall level.

[0008]

In order to achieve the above-mentioned object, a level adjusting mechanism of a foundation according to the present invention is provided between a plurality of foundation bases arranged at a plurality of locations in a building construction area and the foundation bottom. In the foundation structure having a foundation floor having a base floor composed of two bottom pieces, a lower bottom placed directly on the ground and an upper bottom placed on the upper surface thereof, and at least an upper surface portion of the lower bottom. A female screw portion provided at three places, and a bolt which is screwed into each of the female screw portions, the height of the protrusion from the upper surface of the lower bottom plate is adjustable, and the upper bottom plate is mounted on the protruding end thereof. It is characterized by having.

[0009]

According to the level adjusting mechanism of the basic portion having the above structure,
In order to lay a foundation beam, which is a component of the foundation, a foundation bottom installed at a predetermined location is separated into an upper bottom and a lower bottom. When the lower bottom is first installed at a predetermined position on the ground, there is no need to accurately adjust the level.
This is because the upper bottom of the base floor is kept level by adjusting the level of the upper bottom floor installed on the lower bottom floor, so that the level of the lower bottom floor itself is not adjusted.

Conventionally, the horizontal level adjustment is complicated depending on the bottom surface of the ground on which the foundation bottom is installed. However, the reference surface can be secured by the flat lower bottom, and the level adjustment of the upper bottom can be facilitated. .

At least three female threads are provided on the upper surface of the lower base, and bolts are screwed into these female threads, and the upper ends of the bolts protrude from the upper surface of the lower base. Therefore, after the lower bottom has been firmly installed at a predetermined location on the ground, for example, the height of the upper end of each bolt is measured, and each height is adjusted. After that, the upper bottom plate is set horizontally by installing the upper bottom plate at the upper end of the bolt.
In this way, it is not necessary to adjust the level accurately when first installing the lower base, and a rough installation is sufficient, and then the level adjustment of the upper end surface of the base base can be performed by a simple operation of adjusting the height of the bolt. . That is, even when the lower base is installed in an inclined state, the upper base installed on the upper part is installed horizontally, so that the horizontality of the foundation beam spanned between the bases can be ensured.

According to the present invention, not only can the level of the foundation bottom plate be easily adjusted as described above, but also the foundation bottom plate itself is separated into two bottom plate pieces, so that the weight is reduced. It is possible to carry and install by human power without using. Further, the reinforcing steel can be easily arranged in the foundation bottom by installing the reinforcing steel or the like between the lower base and the upper base.

After the level adjustment is completed, the interior space of the base bottom board on the frame is filled with mortar, whereby the upper bottom board and the lower bottom board are firmly fixed, and the installation state of the bottom board is stabilized.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a view showing the structure of a lower bottom plate 10 which is one of the bottom plate pieces constituting a foundation bottom plate.
1 shows a plan view, and FIG. 1B shows a front view.

The lower bottom board 10 is formed, for example, in the shape of a rectangular frame, and is set to a thickness (for example, about 60 mm) smaller than half the thickness of a normal foundation bottom board. And the female screw part 12 is formed in the four corners of the upper end surface 10a. The female screw portion 12 can be formed by embedding column-shaped nuts at four corners in advance.

A bolt 14 is screwed into each of the female screw portions 12. The bolt 14 can be screwed and screwed out by a rotating operation, and the amount of protrusion from the upper end surface of the bottom plate 10 can be adjusted.

Next, FIG. 2 is a view showing the structure of the upper bottom plate 16, wherein FIG. 2A is a plan view and FIG. 2B is a front view.

As shown in the figure, the upper bottom plate 16 is also connected to the lower bottom plate 1.
0, it is formed in the shape of a frame, and is set to a thickness of about one half (for example, about 90 mm) of the thickness of a normal foundation floor. The bottom side of the inner wall 16a of the frame portion is formed as an inclined surface 17 inclined at a predetermined angle toward the side as it goes downward as shown in the figure.

FIG. 3 is an explanatory view showing the operation of the above embodiment. First, the lower bottom 10 is placed on the ground 100 on which the foundation bottom is installed.
Is installed. At this time, the bottom surface of the lower bottom
This is performed by crimping on the surface of No. 0 to ensure stability. The installation of the lower bottom board 10 having a relatively large ground contact area ensures a stable reference plane for performing the horizontal level adjustment of the upper bottom board 16 mounted thereon. Then, the heights of the bolts 14 installed at the four corners are adjusted so that the height H from the surface of the ground 100 is common. This height adjustment can be easily performed by a screwing operation or a screwing operation of rotating each bolt 14.

As described above, each bolt 1 whose height has been adjusted is
By installing the upper base 16 on the upper base 4,
6 will be installed in a horizontal state. This allows
There is no need to lift the heavier base floor, fill the spacers underneath, and perform large-scale work such as level adjustment. It becomes possible.

As described above, the base bottom is the lower bottom 1
0 and the upper bottom plate 16 are transported and installed separately,
It is not necessary to suspend and move by a machine as in the case of installing the entire foundation floor with a considerable weight at once, and the carrying work can be performed manually, and the installation work can be speeded up.

Also, as shown in FIG. 3, the reinforcing reinforcing bar 18 is installed between the lower bottom board 10 and the upper bottom board 16 so that the mortar is installed in the internal space of the frame after the installation work of the upper bottom board 16 is completed. Is filled and the upper and lower substrates 10 and 16 are fixed, so that the rebar is arranged inside.
In this way, by separating the upper and lower bases 10 and 16,
In the meantime, a space for installing the reinforcing bar 18 can be easily secured.

FIG. 4 is a partial cross-sectional view of the base bottom with the reinforcing bar 18 installed between the upper bottom 16 and the lower bottom 10.

When the mortar flows into the frame in the direction of arrow 200 in such an installed state, the mortar not only enters the inside space of the lower base plate 10 through the reinforcing bar 18 but also enters the upper base plate 16. The fluid smoothly flows into the internal space 300 formed on the inclined surface 17 and enters the bolt 14. Therefore, the upper bottom plate 16 and the lower bottom plate 10 are firmly connected by the inflow mortar.

FIG. 5 shows another embodiment of the present invention, in which the same elements as those in the embodiment shown in FIGS. 1 and 2 are denoted by the same reference numerals.

The feature of this embodiment lies in the structure of the lower bottom plate 10 and the upper bottom plate 16, and as shown in FIG.
0 is a step surface 20 lower than the inner edge height of the outer edge of the frame portion.
Are formed along the contour, and the female thread portion 1
2 and bolts 14 are provided. The female screw 12
The positions of the bolts 14 and the bolts 14 are not at the four corners but at substantially the center of each side of the rectangular frame.

The shape of the upper bottom plate 16 is such that the lower end of the frame portion is installed on the step surface 20 of the lower bottom plate 10. And the reinforcing steel bar 18
It is placed and set on the upper end surface of the lower bottom plate 10. After the installation is completed, the internal space is filled with mortar, and the foundation bottom is fixed.

Also in this embodiment, the height adjustment of the bolts 14, that is, the adjustment of the amount of protrusion from the step surface 12 is performed before the installation of the upper bottom plate 16, and the height positions of the bolts are shared. Then, by installing the upper bottom plate 16, the upper bottom plate 16 is accurately placed in a horizontal state. As described above, the upper bottom plate 16 is accurately placed in a horizontal state, so that the upper bottom plate 16 is placed on the foundation bottom plate (on the upper bottom plate 16).
The foundation beam erected on the bridge is also kept accurately horizontal.

It should be noted that the present invention is not limited to the configurations of the above embodiments, and various modifications can be made within the scope of the present invention. For example, in each of the above embodiments, the positions of the female screw portion 12 and the bolt 14 are set at four positions, respectively. However, the present invention is not limited to this. Can be sufficiently achieved.

[0031]

As described above, according to the foundation structure of the present invention, the work of adjusting the level of the foundation base installed at a predetermined position in the construction area of a building is simply performed by screwing in or screwing out bolts. It can be done more quickly with more work.
In addition, in the present invention, since the base bottom is separated into two bottom pieces, the transportation and installation work can be performed extremely easily, and not only the speed adjustment work but also the base construction work can be simplified. Can be achieved.

[Brief description of the drawings]

FIGS. 1A and 1B are a plan view and a front view, respectively, of a lower base according to an embodiment.

FIGS. 2A and 2B are a plan view and a front view, respectively, of an upper bottom board according to the embodiment.

FIG. 3 is an explanatory diagram showing the operation of the embodiment.

FIG. 4 is a partial sectional view showing the operation of the embodiment.

FIG. 5 is an explanatory diagram showing a configuration of another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Lower bottom board 12 Female screw part 14 Bolt 16 Upper bottom board 18 Reinforcing bar

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁶ , DB name) E02D 27/00

Claims (1)

(57) [Scope of request for utility model registration] Claims: 1. A base structure having a base bottom arranged at a plurality of locations in a building construction area and a base beam erected between the base bottoms, wherein a lower base placed directly on the ground and an upper surface thereof are provided. A base bottom comprising two bottom pieces of an upper bottom to be installed; female threads provided at at least three places on an upper surface of the lower bottom; and a lower bottom upper face screwed into each of the female threads. And a bolt on which the upper bottom plate is mounted at a protruding end thereof, the height of which is adjustable.