JP6301742B2 - Steel pipe pole and its installation method - Google Patents

Description

The present invention relates to a column supporting a pillar such as a lamp, a traffic light, a sign, and an antenna, a steel tube pole having a steel foundation for fixing the column, and a method for installing the same.
Specifically, for example, the present invention relates to a steel pipe pole using a round steel pipe or a square steel pipe used for lighting, a traffic light, a road sign, a communication antenna, and the like, and an installation method thereof.

  Various proposals have been made regarding steel pipe poles. The conventional steel column pole construction method uses a concrete foundation, so it takes a lot of labor and time to excavate the hole for the foundation, to cast concrete, and to cure, and the cost of processing the excavated residual soil is high. was there.

  Therefore, a building column method not using a concrete foundation has been proposed. For example, in Patent Document 1 below, by using a foundation composed of one or more foundation pillars with connection fittings, an object or a steel building is locked, and the bottom plate and the upper surface of the foundation frame main body are backfilled. An independent foundation for column bases, in which soil is buried to a predetermined depth and a load is applied to the entire surface of the foundation, and its construction method are described.

JP 2007-126900 A

  However, the independent foundation described in Patent Document 1 does not use a concrete foundation, but the area of the bottom plate must be changed in proportion to the weight of the top end of the column to be installed, and if the weight is large Since the larger the area, the larger the area is required, there is a case where it cannot be installed in a small installation area.

  This invention is made | formed in view of the said situation, and makes it a subject to provide the steel pipe pole which does not need to use a concrete foundation, and is easy to install in the place where an installation area is narrow, and its installation method.

The steel pipe pole of the present invention is a steel pipe pole having a column supporting a pillar such as a lamp, a traffic light, a sign, an antenna, and a steel foundation for fixing a lower end portion of the column , wherein the steel foundation is vertically consists penetrating tubular basic body, said basic body and said post is fixed, said foundation body is buried in the ground, the strut is in the ground the tip portion through said base body It is characterized by protruding .

Since the steel foundation is comprised from the foundation in this invention, the resistance area of a steel foundation can be increased without increasing an installation area by increasing the number of the foundations to install.
Moreover, since the base body and the support | pillar are being fixed with the band, attachment / detachment of a base body is easy.

In the configuration of the present invention, base body is preferably made by forming a plurality of air-gap portion in the basic body by combining a thin steel plate. By refilling the excavated soil in the gap, the rigidity of the foundation body can be increased.

Moreover, the installation method of the steel pipe pole of this invention backfills excavated soil in the said foundation body which excavated the ground and installed . Thereby, the residual soil processing after excavation which occurs when installing the steel pipe pole can be greatly reduced.

  According to the steel pipe pole and the installation method thereof according to the present invention, it is not necessary to use a concrete foundation, and the resistance area of the steel foundation can be increased without increasing the installation area. Is easy to install. In addition, by filling back the excavated soil in the gap of the foundation body, it is possible to greatly reduce the residual soil processing after excavation that occurs when the steel pipe pole is installed.

It is a whole side view showing the steel pipe pole concerning a 1st embodiment of the present invention. It is a figure which shows the basic body which concerns on the 1st Embodiment of this invention, Comprising: (a) is a top view, (b) is a side view. It is a disassembled perspective view of the basic body of FIG. It is a figure which shows the basic body which concerns on the 2nd Embodiment of this invention, Comprising: (a) is a top view, (b) is a side view. It is a disassembled perspective view of the basic body of FIG. It is a figure which shows the basic body which concerns on the 3rd Embodiment of this invention, Comprising: (a) is a top view, (b) is a side view. It is a disassembled perspective view of the basic body of FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is an overall side view of a steel pipe pole according to a first embodiment of the present invention.
As shown in FIG. 1, the steel pipe pole according to the present embodiment includes a support column 2 that supports a poled body composed of traffic lights 1 and 1 ′, and steel foundations 3 and 3 ′. The foundations 3 and 3 'are configured by overlapping a plurality of foundation bodies 4 in the vertical direction.

  In this embodiment, steel foundations 3 and 3 ′ are used. This eliminates the need to use concrete and can be recycled.

The basic body 4 is unitized as a part. Thereby, the dimension in the depth direction can be adjusted by increasing the number of foundation bodies 4 to be installed like the steel foundation 3 ', so that the resistance area of the steel foundation is increased without increasing the installation area. Can do. Moreover, the dimension of the steel foundations 3 and 3 ′ can be freely set by changing the width dimension of the foundation body 4.
In addition, a standard type in which the support column 2 is built at the center of the foundation body 4 and an eccentric type in which the support column 2 is eccentric from the center of the foundation body 4 are prepared.
Furthermore, in this embodiment, since the steel foundations 3 and 3 ′ are used, the foundation shape can be freely set in addition to the rectangles shown in FIGS. 2 and 3 and the circles shown in FIGS.

FIG. 2 is a plan view and a side view of the foundation body of the first embodiment, and FIG. 3 is an exploded perspective view of the foundation body of FIG.
As shown in FIGS. 2 and 3, in this embodiment, the base body 4 has a rectangular box structure in which a plurality of gaps 6 are formed by combining thin steel plates. This is lighter than concrete. By refilling the excavated soil into the gap 6, the rigidity and weight of the base body 4 can be increased. The base body 4 and the support column 2 are fixed by a band 5 that is tightened by a bolt and a nut. Thereby, the attachment position and direction of the base body 4 can be changed freely, and attachment / detachment is easy.

Moreover, the thin steel plate used for the base body 4 is subjected to a hot dip galvanizing process, and the corrosion resistance is enhanced.
Further, a protrusion (not shown) made of round steel is provided on the outer surface of the support column 2 and fitted into a hole on the band 5 side. Thereby, the rotation of the support column 2 and the band 5 can be prevented.

Drawing 4 is a figure showing the basic object concerning a 2nd embodiment of the present invention, (a) is a top view and (b) is a side view. FIG. 5 is an exploded perspective view of FIG.
As shown in FIGS. 4 and 5, the basic body 4 has a circular outer shape. In the case of a circular shape, a rotational force may be generated, so that the flange 7 is provided. Thereby, it is possible to resist the rotational force.

Drawing 6 is a figure showing the basic object concerning a 3rd embodiment of the present invention, (a) is a top view and (b) is a side view. FIG. 7 is an exploded perspective view of FIG.
As shown in FIGS. 6 and 7, the foundation body 4 has a circular outer shape, and the center of the foundation body 4 is deviated from the center of the column 2 and is eccentric. Thereby, the support | pillar 2 can be installed in a free position according to the condition of the field.

Next, features and effects of the method for installing the steel pipe pole according to the embodiment of the present invention will be described.
In this embodiment, steel foundations 3 and 3 ′ are used and concrete is not used. As a result, the work for kneading concrete, the placing work, and the curing period can be omitted, so that the foundation construction time can be shortened.
When rebuilding the support 2, the foundation body 4 can be removed and reused.
The base body 4 is attached to the support column 2 in advance at the time of the building pillar. This facilitates installation on site.
The excavated soil is returned to the gap 6 provided in the foundation body 4. As a result, almost no residual soil is generated.

The steel pipe pole of the present invention shown in FIGS. 1 to 3 was installed under the following conditions.
<Conditions for implementation>
Outer diameter of the lower part of the support: 139 to 190 mm, thickness: 4.5 mm
Outer diameter of strut tip: 75.0 mm, plate thickness: 4.5 mm
Pillars: Traffic light Shape and number of foundation bodies: 7 rectangles Thin steel sheets used for foundation bodies and bands: Galvanized steel sheets, sheet thickness: 4.5 mm

  As a result, it is possible to provide a steel pipe pole that does not require the use of a concrete foundation and can be easily installed in a place with a small installation area, and an installation method thereof, and the effect of the present invention was confirmed.

  The steel pipe pole of the present invention can be applied to various poles installed in places where the installation area is small.

1, 1 ′ Pillar 2 stanchion 3, 3 ′ steel foundation 4 foundation body 5 band 6 gap portion 7 鍔

Claims (8)

  A steel pipe pole having a column supporting a fixture such as a lamp, a traffic light, a sign, an antenna, and a steel foundation for fixing a lower end of the column, the steel foundation having a cylindrical shape penetrating vertically It is composed of a foundation body, the foundation body and the support column are fastened and fixed by a fastening member, the foundation body is embedded in the ground, and the support column penetrates the foundation body and the tip portion projects into the ground. A steel pipe pole characterized by   The steel pipe pole according to claim 1, wherein a center of the support column is arranged at a position eccentric from a center of the steel base.   The steel pipe pole according to claim 1 or 2, wherein the steel foundation is composed of a plurality of the foundation bodies. The steel pipe pole according to any one of claims 1 to 3, wherein the foundation body is formed by combining a thin steel plate to form a plurality of voids in the foundation body .   The steel pipe pole according to any one of claims 1 to 4, wherein an outer shape of the base body is formed in a square shape.   The steel pipe pole according to claim 5, wherein a flange for preventing rotation is provided on an outer periphery of the foundation body.   The steel pipe pole according to any one of claims 1 to 4, wherein an outer shape of the base body is formed in a circular shape, and a flange for preventing rotation is provided on an outer periphery. . The steel pipe pole installation method according to any one of claims 1 to 7, wherein excavated soil is backfilled in the foundation body excavated from the ground.

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