JP3143401U - Simple foundation structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a simple foundation structure that can reduce the cost and labor required for production and can be finely adjusted at the time of installation and reused after removal.
A simplified basic structure of the present invention includes a basic steel plate, a support steel plate provided on the basic steel plate and provided with a hole portion having a detent structure, and a fitting that fits into the hole portion. It is provided with a column having a joint at the lower end, and a plurality of turnbuckles stretched between the column and the foundation steel plate, and the lower region of the column where the turnbuckle is stretched is underground It is configured to be used in an embedded state.
[Selection] Figure 2

Description

  The present invention relates to, for example, a simple foundation structure for supporting a column base to which a signboard is attached, and more particularly to a simple foundation structure that is easy to install and remove, is inexpensive, and has high strength.

In the case of installing a signboard or the like on the ground, a concrete foundation is constructed in the ground, and a support for a signboard is supported by the concrete foundation.
However, the above-mentioned full-scale foundation structure using a concrete foundation has a problem that it takes a lot of labor and cost to install, it is difficult to remove, and the once used concrete foundation and support column cannot be reused as they are. .

Therefore, in recent years, for example, as shown in Patent Document 1, a simple installation type simple foundation structure in which a metal plate or the like is appropriately assembled to a structure by welding or the like and further reinforced by many reinforcing ribs has been proposed. .
This simple foundation structure has a structure that can be disassembled into a lower part embedded in the ground and an upper part that stands up on the ground. And the two connection metal fitting parts are connected by fastening using a bolt and a nut, and the simple foundation structure is constructed.
JP 2007-126900 A

The conventional configuration has the following problems.
First, since the simple foundation structure described above uses a lot of welding and requires a large number of reinforcing ribs, it requires considerable cost and labor to manufacture. Also, each part has to be finely adjusted according to the situation at the site, but the work is difficult, and since it is assembled by welding, it can be disassembled into individual parts and reused for each individual part It was also very difficult to do.
Moreover, the structure that can be disassembled into the upper part and the lower part is convenient at the time of installation or removal, but there is a problem that the size of the signboard to be installed is limited because the strength of the connecting part is insufficient.

  The present invention was made based on these points, and the purpose of the present invention is to reduce the cost and labor required for production, and the structure that can be finely adjusted during installation and reused after removal is simple and inexpensive. It is to provide a simple basic structure.

In order to achieve the above object, a simple foundation structure according to claim 1 of the present invention comprises a foundation plate body, a fitting portion provided on the foundation plate body and having a detent structure, and fitted into the fitting portion. The lower part of the support | pillar which comprises the support | pillar provided with the to-be-fitted part to a lower end, and the several turnbuckle stretched | stretched between the said support | pillar and the said base board body, and the said turnbuckle is stretched | stretched The area is used in a state where it is buried in the ground.
According to a second aspect of the present invention, there is provided a simplified basic structure according to the first aspect, wherein a support plate supporting the support column is fixed to the basic plate, and the fitting is performed on the support. A portion is formed.
According to a third aspect of the present invention, there is provided the simplified basic structure according to the second aspect, wherein the fitting portion on the support plate side is configured as a square hole, while the fitted portion of the support column Is constituted by a shaft portion having a rectangular cross section.
The simplified foundation structure according to claim 4 is the simplified foundation structure according to claim 3, wherein the shaft portion as the fitted portion is the lower end of the support column itself.
Further, the simplified basic structure according to claim 5 is the simplified basic structure according to claim 3, wherein the shaft portion as the fitted portion is a shaft portion of another member inserted and fixed in the lower end opening of the support column. It is characterized by being.
According to a sixth aspect of the present invention, there is provided a simplified foundation structure according to the second aspect, wherein the foundation plate and the support plate are made of metal.
A simple foundation structure according to claim 7 is the simple foundation structure according to any one of claims 1 to 5, wherein four turnbuckles are provided, and the foundation plate is a rectangular flat surface. It has a shape, and the turnbuckle is stretched radially toward the four corners of the base plate.

As described above in detail, according to the simple foundation structure according to the present invention, the foundation plate body, the fitting portion provided on the foundation plate body and provided with a detent structure, and the fitting fitted to the fitting portion. A column having a joint at the lower end, and a plurality of turnbuckles stretched between the column and the base plate, and a lower region of the column where the turnbuckle is stretched Since it is configured to be used in an embedded state, it can be disassembled into a base plate, a support column, and a turnbuckle, and the manufacturing cost and labor can be significantly reduced. In addition, the use of the turnbuckle enables fine adjustment during installation of the simple foundation structure, disassembly and reuse after removal. In addition, by embedding the lower region of the column in the ground, it will be able to withstand a large moment applied to the column lower part caused by wind, etc., preventing the column from tilting, and maintaining the horizontal posture of the column Become.
According to a second aspect of the present invention, there is provided a simplified basic structure according to the first aspect, wherein a support plate supporting the support column is fixed to the basic plate, and the fitting is performed on the support. Since the part is formed, the above effect can be obtained with a simple structure.
According to a third aspect of the present invention, there is provided the simplified basic structure according to the second aspect, wherein the fitting portion on the support plate side is configured as a square hole, while the fitted portion of the support column Since it is composed of a shaft section with a rectangular cross section, a detent structure is formed by the shape of the hole itself, and there is no need to provide a new detent structure separately. The number of points can be reduced.
Further, the shaft portion is inserted into the lower end opening of the column as in the case of the simple foundation structure according to claim 4 and at the lower end of the column itself as in the simple foundation structure according to claim 5. -It may be a shaft part of another fixed member.
According to a sixth aspect of the present invention, there is provided a simple foundation structure according to the second aspect, wherein the foundation plate body and the support plate body are made of metal, so that a sufficient weight as a foundation can be provided. And a stable foundation structure can be provided.
A simple foundation structure according to claim 7 is the simple foundation structure according to any one of claims 1 to 5, wherein four turnbuckles are provided, and the foundation plate is a rectangular flat surface. It has a shape, and the turnbuckles are stretched radially toward the four corners of the foundation plate, so that it can respond to forces in various directions acting on the struts, and the tension adjustment of each turnbuckle It is possible to correct the inclination of the column by performing the above.

Hereinafter, an embodiment of the simplified basic structure 1 of the present invention will be described with reference to FIGS. 1 to 7.
1 is a perspective view showing a simplified basic structure according to the present embodiment, FIG. 2 is a front view of the same, FIG. 3 is a side view of the same, FIG. 4 is a sectional view taken along the line IV-IV in FIG. 6 is an enlarged view of a V portion, FIG. 6 is an enlarged view of a VI portion of FIG. 4, and FIG. 7 is an enlarged central longitudinal sectional view of a VII portion of FIG.

A simple foundation structure 1 according to this embodiment includes a steel plate support plate 3 and a steel plate support plate provided on the base plate body and having a hole 7 with a detent structure 5 formed therein. It is basically configured by including a body 9, a column 13 that fits into the hole 7, and a plurality of turnbuckles 15 that are stretched between the column 13 and the base plate body plate 3. Yes.
And the said simple foundation structure 1 is used in the state by which the lower area | region 17 of the said support | pillar 13 in which the said turnbuckle 15 was stretched was embed | buried under the ground.

In the present embodiment, the base plate 3 is formed of a steel plate of 1200 mm × 1800 mm and a thickness of 19 mm, and the bottom gusset plate 19 is diagonally upward and inward at the corners of the four corners of the base plate 3. Four pieces are provided so as to protrude toward the front.
In addition, a support plate body 9 made of a steel plate having a rectangular flat plate shape as an example is integrally joined to the base plate body 3 by welding at a position that is somewhat unevenly distributed from the center of the base plate body 3.

The support plate 9 is formed with a square hole 7 as an example, and the hole 7 itself has a function as a detent structure 5 for restricting the horizontal rotation of the column 13 described below. It is configured as follows.
The column 13 is configured as an example of a square steel pipe having a diameter of 125 mm × 125 mm and a thickness of 4.5 mm, and the fitting portion 11 at the lower end thereof is fitted into the hole portion 7 of the support plate body 9.

Further, four upper gusset plates 23 are provided on the upper portion of the lower region 17 of the column 13 so as to protrude obliquely downward and outward at positions corresponding to the bottom gusset plates 19.
And, as shown in the figure, an installation object A such as a signboard is attached to the upper front surface of the support column 13 by using a fixture (not shown) or by welding or the like.

In the present embodiment, four turnbuckles 15 are provided, and the column 13 is stretched between the four bottom gusset plates 19 and the four upper gusset plates 23 at the corresponding positions, so that the column 13 is supported. It is arranged radially toward the corners at the four corners of the base plate 3 as the center.
As an example, the turnbuckle 15 has a mounting plate 27 attached to the upper gusset plate 23 with a high-strength bolt 25 at its tip. As an example with a mounting plate 27 attached by a force bolt 25 at the tip, the other tension bolt 31 engraved with a left-hand thread, a right thread and a left thread that are screwed into the two tension bolts 29, 31. A turnbuckle body 33 having female screw portions at both ends is provided.

Next, the construction procedure in the case of installing the simple foundation structure 1 configured as described above will be described.
As shown in FIG. 2 and FIG. 3, the installation place 35 having a slightly larger opening area than the base plate body 3 is formed by determining the place where the simple foundation structure 1 is first installed and the installation direction.
Then, the bottom surface 37 of the formed installation hole 35 is leveled, and crushed stones 39 are spread on the bottom surface 37.

Next, the base plate 3 is placed on the crushed stone 39 with the support plate 9 facing up. Then, the lower end fitting portion 11 of the support 13 is fitted into the hole 7 of the support plate 9, and the upper gusset plate 23 provided on the support 13 and the bottom gusset plate provided on the foundation plate 3. 19 is connected with the turnbuckle 15.
The turnbuckle 15 is initially set somewhat loose, and after the turnbuckle 15 is attached to the two types of gusset plates 19 and 23 using the high-strength bolts 25, the turnbuckle body 33 is set to a predetermined position. To adjust the tension of the turnbuckle 15 and the inclination of the column 13.

After the turnbuckle 15 is stretched, the earth and sand 41 dug up to form the installation hole 35 is put into the installation hole 35 and backfilled. The backfilled earth and sand 41 further increases the rigidity of the simple foundation structure 1 and can withstand a large moment applied to the lower portion of the support column 13 by wind or the like.
If the object A is not attached to the support 13 at this stage, an attachment (not shown) is used, or the object A is attached to the upper part of the support 13 by welding or the like.

When removing the simple foundation structure 1 installed in this way, the earth and sand 41 is excavated again to dig up the installation hole 35, and the operation nut 33 is turned and loosened in a predetermined direction, and the tension of the turnbuckle 15 is increased. Release the state.
Then, by removing the high-strength bolt 25, the connection between the upper gusset plate 23 and the bottom gusset plate 19 is released, and the base plate 3, the support column 13, and the turnbuckle 15 are disassembled.

If the above-described three kinds of members 3, 13, 15 are taken out from the installation hole 35 and the installation hole 35 is filled again, the removal of the simple foundation structure 1 is completed.
Further, the simple foundation structure 1 taken out from the installation hole 35 can be reused as it is, and can be used repeatedly for the same installation object A at different installation locations or for different installation objects A. ing.

The present invention is not limited to the one embodiment.
For example, when a large signboard or the like is used as the installation object A, a plurality of column bases may be provided, but the simple basic structure 1 of the present invention is individually provided for the plurality of column bases. It is possible to apply.
Various structures can be applied as the rotation prevention structure 5 applied to the hole 7 of the support plate 9, and the rotation prevention structure 5 using a pin, key, clamp, or the like (not shown) may be used. The hole portion 7 and the shaft portion 21 can have a D-shaped cross-sectional shape in plan view, a polygonal shape other than a quadrangle, or a spline shape.

Further, the support plate 9 is joined to the base plate 3 at a position where the support plate 9 is slightly deviated from the center of the base plate 3 as shown in the illustrated embodiment. Is possible.
Further, the number of turnbuckles 15 is not limited to four, but may be three or five or more.
Further, the shape of the base plate body 3 is not limited to a rectangular flat plate shape, and various shapes such as a disk shape can be adopted. The size of the base plate body 3 is also appropriately determined according to the size, weight, etc. of the installation object A. Can change.

Similarly, the column 3 is not limited to a square steel pipe, but may be a steel pipe having a circular front face or a shape steel material such as an H-shaped steel. The diameter of the pillar 3 can be variously changed according to the size, weight, etc. .
Moreover, in the case of the said one Embodiment, although the lower end part itself of the support | pillar 13 was comprised as a lower end fitting part as it is, it is not limited to it. For example, a configuration in which a shaft portion as a separate member is fixed to the inner periphery of the lower end of the column 13 and the shaft portion is fitted in a hole portion of the support plate body may be employed.
In the case of the one embodiment, the base plate and the indicator plate are made of steel plates, but may be made of other kinds of metals. In addition to metal, for example, resin and wood are also assumed. In that case, since the weight is somewhat reduced, it is conceivable that a device such as a separate weight is added.

  The present invention can be used at an installation construction site such as a signboard or a sign, and has applicability particularly at an installation site of an installation using a simple foundation structure that is repeatedly installed and removed in a short cycle.

It is a figure which shows one embodiment of this invention, and is a perspective view which shows a simple foundation structure. It is a figure which shows one embodiment of this invention, and is a front view which shows a simple foundation structure. It is a figure which shows one embodiment of this invention, and is a side view which shows a simple foundation structure. It is a figure which shows one Embodiment of this invention, and is IV-IV sectional drawing of FIG. It is a figure which shows one embodiment of this invention, and is an enlarged view of the V section of FIG. It is a figure which shows one Embodiment of this invention, and is an enlarged view of the VI section of FIG. It is a figure which shows embodiment of this invention, and is an expansion center longitudinal cross-sectional view of the VII part in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Simple foundation structure 3 Foundation plate body 5 Anti-rotation structure 7 Hole part 9 Support plate body 11 Lower end fitting part 13 Support | pillar 15 Turnbuckle 17 Lower area 19 Bottom gusset plate 23 Upper gusset plate 25 High-strength bolt 27 Mounting plate 29 Tension Installation bolt 31 Extension bolt 33 Turnbuckle body 35 Installation hole 37 Bottom surface 39 Crushed stone 41 Earth and sand GL Ground A Installation object

Claims (7)

A base plate body, a fitting portion provided on the base plate body and provided with a detent structure, a post having a fitted portion fitted to the fitting portion at a lower end, the post and the base plate A plurality of turnbuckles stretched between the bodies,
A simple foundation structure characterized by being used in a state in which a lower region of the support column on which the turnbuckle is stretched is buried in the ground. In the simple foundation structure according to claim 1,
A simple base structure, wherein a support plate for supporting the column is fixed to the base plate, and the fitting portion is formed on the support. In the simple foundation structure according to claim 2,
The simple base structure according to claim 1, wherein the fitting portion on the support plate side is configured as a square hole, and the fitted portion of the support column is configured by a shaft portion having a rectangular cross section. In the simple foundation structure according to claim 3,
2. A simple foundation structure according to claim 1, wherein the shaft portion as the fitted portion is the lower end itself of the support column. In the simple foundation structure according to claim 3,
2. A simple foundation structure according to claim 1, wherein the shaft portion as the fitted portion is a shaft portion of another member inserted and fixed in the lower end opening of the support column. In the simple foundation structure according to claim 2,
A simple foundation structure characterized in that the foundation plate and the support plate are made of metal. In the simple foundation structure according to any one of claims 1 to 5,
Four turnbuckles are provided, the base plate has a rectangular planar shape, and the turnbuckles are radially extended toward the four corners of the base plate. Simple foundation structure.

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