JP2015034414A - Hollow column - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hollow column in which a cable member of an electric wire, a signal line, etc. is allowed to pass easily and certainly through a cavity of the inside of the hollow column even if the inside of the hollow column is reinforced.SOLUTION: A hollow column 1 is a hollow column which is erected on the ground with the lower part embedded under the ground, and includes a reinforcement part 10 which is disposed at a cavity 5 of the hollow column 1 and a flexible duct line material 11 for guiding a cable member S through the reinforcement part 10. The cable member S of an electric wire, a signal line, etc. is allowed to pass through the cavity 5 of the inside of the hollow column 1 even if the inside of the hollow column is reinforced.

Description

  The present invention relates to a hollow column such as various steel pipe columns and concrete electric poles, for example, having a lower portion buried in the ground and standing on the ground.

  A hollow column such as a steel pipe column or a concrete utility column is usually erected on the ground with a predetermined length of a base end portion buried in the ground. Such a hollow column is a hollow cylindrical body having a cavity inside. In the hollow pillar, for example, a side opening is formed on the side surface about 1 m above the boundary between the underground part buried in the ground and the ground part standing on the ground. The hollow columns are reinforced by inserting a plurality of reinforcing rod-shaped members into the hollow columns through the side openings (see Patent Document 1).

JP 2011-157769 A

  However, in the hollow column described in Patent Document 1 described above, a plurality of reinforcing rod-shaped members are inserted into the hollow column to be reinforced, so that an electric wire, a signal line, or the like is inserted into the hollow of the hollow column. When trying to pass the cable member, it is difficult to pass the cable member while avoiding the plurality of reinforcing rod-like members.

  The present invention has been made in view of the above, and an object of the present invention is to facilitate the provision of cable members such as electric wires and signal wires in the cavities inside the hollow columns even if the inside of the hollow columns is reinforced. An object of the present invention is to provide a hollow column that can be reliably passed.

  In order to achieve the above object, the hollow column according to claim 1 is a hollow column with a lower part embedded in the ground and standing on the ground, and a reinforcing part disposed in a cavity of the hollow column, The gist of the invention is to have a flexible pipe material for guiding the cable member through the reinforcing portion.

  In the hollow column according to claim 1, even if the inside of the hollow column is reinforced, a cable member such as an electric wire or a signal line is easily and reliably passed through the hollow inside the hollow column through the flexible pipe material. be able to.

  The hollow pillar according to claim 2, wherein the reinforcing portion passes a plurality of aramid rods, a plurality of steel wires, and the flexible pipe material, and the plurality of aramid rods and the plurality of steel wires are hollowed out. And an equal placement jig for alternately and evenly arranging in the circumferential direction of the hollow column within the cavity of the column.

  In the hollow column according to claim 2, the plurality of aramid rods and the plurality of steel wires of the reinforcing portion can be uniformly reinforced in the circumferential direction by evenly arranging the plurality of aramid rods and the plurality of steel wires by the uniform arrangement jig, and this equal arrangement The jig can pass the flexible pipe material.

  In the hollow pillar of Claim 3, the said equal arrangement jig | tool has the center opening part for letting the said flexible pipe material pass.

  In the hollow column according to the third aspect, the flexible pipe material can be easily and reliably passed through the hollow of the hollow column through the central opening of the uniform arrangement jig.

  In the hollow column according to claim 4, an opening for inserting the flexible pipe material into the cavity of the hollow column is formed in the lower portion of the hollow column.

  In the hollow column according to the fourth aspect, the flexible pipe material can be easily introduced into the cavity of the hollow column through the opening in the lower part of the hollow column.

  ADVANTAGE OF THE INVENTION According to this invention, even if the inside of a hollow pillar is reinforced, the hollow pillar which can pass cable members, such as an electric wire and a signal wire, easily and reliably can pass through the cavity inside a hollow pillar.

It is a front view which shows embodiment of the hollow pillar of this invention. It is a perspective view which shows the flexible pipe | tube material which guides cable members, such as the hollow pillar shown in FIG. 1, the reinforcement part of the hollow pillar arrange | positioned in the cavity of this hollow pillar, and an electric wire and a communication wire. It is a top view which shows the structural example of a uniform arrangement | positioning jig | tool.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention (hereinafter referred to as embodiments) will be described with reference to the drawings.

  FIG. 1 is a front view showing an embodiment of a hollow column of the present invention. 2 shows the hollow column 1 shown in FIG. 1, the reinforcing portion 10 of the hollow column disposed in the cavity 5 of the hollow column 1, and the flexible conduit for guiding the cable member S such as an electric wire or a communication line. 3 is a perspective view showing a material 11. FIG.

  The hollow pillar 1 shown in FIG. 1 is a steel pipe pillar without a taper, for example. However, the hollow pillar of the present invention is not limited to this, and includes a steel pipe pillar having a taper and a concrete pillar (for example, a concrete power pole having a taper or a concrete power pole having no taper).

  In FIG. 1, illustration of the upper part of the hollow column 1 is omitted. A lower portion of a predetermined length from the base end portion 2 of the hollow column 1 is embedded and standing as an underground portion 3, and the remaining portion of the hollow column 1 appears on the ground as a ground portion 4. The base end 2 of the hollow column 1 is closed.

  As shown in FIGS. 1 and 2, the internal structure of the hollow column 1 has a hollow 5 having an inner diameter that is constant along the length direction, and is a hollow cylindrical body. As shown in FIG. 1, an opening 6 is provided in the underground portion 3 of the hollow column 1, and a side opening 7 is provided in the ground portion 4. The opening 6 has, for example, a rectangular shape, and is formed along the longitudinal direction Z of the hollow column 1. The side opening 7 has, for example, a vertically long rectangular shape, and is formed along the longitudinal direction Z of the hollow column 1.

  As shown in FIG. 1, the ground portion 4 of the hollow pillar 1 is formed with an opening 8 for taking out a cable member S such as an electric wire or a communication line from the hollow pillar 1 as necessary. .

  As will be described in detail later, the hollow column reinforcing portion 10 shown in FIG. 1 sandwiches the ground 9 in order to reinforce the ground 9 at the boundary between the underground portion 3 and the ground portion 4 of the hollow column 1. In the hollow 5 of the hollow column 1, it is arranged along the longitudinal direction Z thereof.

  The reason why the reinforcing portion 10 of the hollow column is disposed and reinforced in the range including the ground 9 in the hollow column 1 is as follows. That is, the portion of the ground 9 in the hollow column 1 is easily bent or broken due to the difference between the support strength of the underground portion 3 and the support strength of the ground portion 4. For example, when the vehicle hits the hollow column 1, It is easy to bend from the part. In addition, since the dog 9 or the like often urinates the portion near the ground 9, the hollow column 1 collapses from the portion near the ground 9 because it is more easily corroded than other portions. There is also a risk. For the above reasons, the hollow column reinforcing portion 10 reinforces the ground 9 at the boundary between the underground portion 3 and the ground portion 4 of the hollow column 1.

  As shown in FIG. 2, in the hollow column 1, a part thereof is cut out from the underground portion 3 to the ground portion 4, and the reinforcing portion 10 in the cavity 5 of the hollow column 1 is illustrated. . The hollow column reinforcing portion 10 is disposed in the cavity 5 of the hollow column 1, and the hollow column reinforcing portion 10 illustrated in FIG. 2 includes a plurality of aramid rods 13, a plurality of PC steel wires 14, and the like. And a plurality of uniform arrangement jigs 20.

  In the illustrated example, four aramid rods 13 and four PC steel wires 14 are used, and the aramid rod 13 is thicker than the PC steel wires 14. However, the number of aramid rods 13 and PC steel wires 14 and the size of the thickness are not particularly limited.

  As shown in FIG. 2, five uniform placement jigs 20 are used as an example, but the number of uniform placement jigs 20 is not particularly limited. The five equal placement jigs 20 are arranged in the cavity 5 of the hollow column 1 so as to be in contact with the inner surface 1A of the hollow column 1 and at the same interval in the longitudinal direction Z.

  An example of the structure of each uniform arrangement jig 20 is shown in FIG. FIG. 3 is a plan view of the uniform arrangement jig 20.

  As shown in FIG. 3, the uniform arrangement jig 20 is made in a circular shape from plastic, for example. The uniform arrangement jig 20 includes a ring-shaped outer portion 21, a plurality of aramid rod insertion portions 22, a PC steel wire insertion portion 23, and a central opening 20P. The central opening 20P is formed by a plurality of aramid rod insertion parts 22, a PC steel wire insertion part 23, and an outer shell part 21 shown in FIG. 2, and the central opening 20P is a flexible pipe material 11 to be described later. It is an opening part for letting pass along the longitudinal direction Z smoothly.

  Four aramid rod insertion portions 22 are formed on the inner surface 24 of the outer portion 21 so as to protrude inward every 90 degrees. Four PC steel wire insertion portions 23 are formed on the inner surface 24 of the outer shell portion 21 so as to protrude inward every 90 degrees. Each PC steel wire insertion part 23 is provided in the center position of the adjacent aramid rod insertion parts 22 and 22 between the adjacent aramid rod insertion parts 22 and 22. That is, each aramid rod insertion part 22 and each PC steel wire insertion part 23 are alternately provided on the inner surface 24 of the outer shell part 21 every 45 degrees.

  As a result, as shown in FIG. 2, the four aramid rods 13 and the four PC steel wires 14 are respectively passed through the aramid rod insertion portions 22 and the PC steel wire insertion portions 23 of the evenly arranged jig 20. Thereby, the aramid rod 13 and the PC steel wire 14 can be arranged evenly along the circumferential direction of the cavity 5 of the hollow column 1 on the inner surface 24 of the outer shell portion 21 alternately every 45 degrees of the arrangement angle. . Thereby, the aramid rods 13 and the plurality of steel wires 14 of the reinforcing portion 10 can be evenly reinforced in the circumferential direction by arranging them uniformly by the uniform arrangement jig 20. The uniform arrangement jig 20 is also referred to as a rod arrangement spacer.

  As shown in FIG. 3, a plastic tape cloth, for example, an aramid tape cloth 26 is preferably wound on the outer surface 25 of the outer portion 21 of the uniform arrangement jig 20, preferably in a double or triple manner. The aramid tape cloth 26 is provided to prevent the outer portion 21 of the uniform placement jig 20 from being broken by receiving an external force.

  As a result, by using the aramid tape cloth 26 for the outer portion 21 of the plastic equal placement jig 20, it is possible to prevent the outer portion 21 of the equal placement jig 20 from cracking in the cavity 5 of the hollow column 1. Therefore, the uniform arrangement jig 20 can ensure the retention of the arrangement positions of the aramid rod insertion portions 22 and the PC steel wire insertion portions 23.

  Next, the flexible pipe member 11 for guiding the cable member S such as an electric wire or a communication line shown in FIGS. 1 and 2 will be described.

  As this flexible pipe material 11, for example, a corrugated hard polyethylene pipe that can be used as an underground pipe can be used. The flexible pipe material 11 has a spiral corrugated portion 11A having a predetermined pitch. By using the pipe having the corrugated portion 11A, the flexible pipe material 11 can increase the flat compressive strength and have an appropriate flexibility.

  As shown in FIG. 1 and FIG. 2, the flexible pipe material 11 is inserted from the opening 6 of the underground portion 3 and is disposed through the cavity 5 of the hollow column 1, so that it is shown in FIG. 1. In addition, the cable member S such as an electric wire or a communication line can be led out of the hollow column 1 from the opening 6 of the underground portion 3 through the flexible pipe member 11, for example, from the opening 8 of the ground portion 4. It is like that.

  Next, an assembly example of the hollow column 1 described above will be described.

  For example, as shown in FIGS. 1 and 2, the flexible pipe material 11 is inserted from the opening 6 of the underground portion 3 and disposed in the cavity 5 of the hollow column 1. In this case, as shown in FIG. 2, the upper end portion 11 </ b> T of the flexible pipe material 11 is positioned in the cavity 5 of the hollow column 1.

  In the cavity 5 of the hollow column 1 shown in FIG. 1, for example, five uniform arrangement jigs 20 are arranged along the longitudinal direction Z of the hollow column 1 through the side openings 7, for example, as shown in FIG. 2. . By passing four aramid rods 13 and four PC steel wires 14 through each aramid rod insertion portion 22 and each PC steel wire insertion portion 23 of these uniform arrangement jigs 20, respectively, the aramid rod 13 and the PC steel wire are passed through. The steel wires 14 are alternately arranged on the inner surface 24 of the outer shell portion 21 alternately at every 45 degrees of the arrangement angle. Accordingly, the hollow column reinforcing portion 10 is arranged in the cavity 5 of the hollow column 1.

  Thereby, the reinforcing part 10 of the hollow column is arranged in a range including the ground 9 in the hollow column 1, thereby reinforcing the range from the underground part 3 to the ground part 4 including the ground 9 of the hollow column 1. Thus, it is possible to prevent the portion of the ground 9 in the hollow column 1 from being easily bent or broken by the chain of the support strength of the underground portion 3 and the support strength of the ground portion 4. For example, even if the vehicle hits the hollow column 1, it can be prevented from being bent from a portion near the ground 9. Furthermore, the portion near the ground 9 is more likely to corrode than other portions because, for example, dogs often urine, but the hollow column 1 collapses from the portion near the ground 9. Can be suppressed.

  In this state, the flexible pipe member 11 passes through the central opening 20 </ b> P of each uniform arrangement jig 20. As shown in FIG. 2, the cable member S such as an electric wire or a communication line is passed through the flexible pipe member 11 inserted as described above from, for example, the common groove, thereby opening the underground portion 3. From the part 6, for example, it can be led out of the hollow column 1 through the opening 8 of the ground part 4.

  Thereby, even if the reinforcement part 10 of a hollow column is arrange | positioned and reinforced in the range from the underground part 3 including the ground 9 in this hollow pillar 1 to the ground part 4, cable members S, such as an electric wire and a communication line, are For example, it is only necessary to pass through the flexible conduit member 11 inserted as described above from the shared groove. Therefore, the operation of passing the cable member S such as an electric wire or a signal line through the cavity 5 inside the hollow column 1 can be easily and reliably performed.

  The hollow column of the embodiment of the present invention is a hollow column whose lower part is buried in the ground and standing on the ground, and a reinforcing member disposed in the hollow of the hollow column, and a cable member passing through the reinforcing unit And a flexible pipe material for guiding. Thereby, even if the inside of a hollow pillar is reinforced, cable members, such as an electric wire and a signal wire, can be easily and reliably passed through the inside of a hollow pillar through a flexible pipe material.

  In the hollow column, the reinforcing portion passes through the plurality of aramid rods, the plurality of steel wires, and the flexible pipe material, and the plurality of aramid rods and the plurality of steel wires are arranged in the circumferential direction of the hollow column in the hollow column. And an equal placement jig for evenly arranging alternately. Thereby, the hollow column can be uniformly reinforced in the circumferential direction by arranging the plurality of aramid rods and the plurality of steel wires of the reinforcing portion evenly by the uniform arrangement jig. Moreover, the uniform arrangement jig can pass the flexible pipe material.

  The uniform arrangement jig has a central opening for passing the flexible pipe material. Thus, the flexible pipe member can be easily passed through the hollow of the hollow column through the central opening of the uniform arrangement jig.

  In the lower part of the hollow column, an opening for inserting the flexible pipe material into the hollow of the hollow column is formed. Thereby, the flexible pipe material can be easily introduced into the hollow of the hollow column through the opening at the bottom of the hollow column.

  The present invention has been described with reference to the embodiments. However, each embodiment is an example, and the scope of the invention described in the claims can be variously modified without departing from the scope of the invention. .

  For example, the shape and material of the flexible pipe material are not particularly limited as long as it is a flexible tube. The number of uniform arrangement jigs set in the hollow column is not limited to five, but may be four or less, or six or more, depending on the size and type of the hollow column. The hollow column in the illustrated example is a steel pipe column, but is not limited thereto, and may be a concrete column having a cavity.

DESCRIPTION OF SYMBOLS 1 Hollow pillar 2 Base end part 3 of hollow pillar Underground part 4 of hollow pillar Ground part 5 of hollow pillar Hollow 10 of hollow pillar Reinforcement part 11 of hollow pillar Flexible pipe material 13 Aramid rod 14 Steel wire 20 Uniform arrangement treatment Tool 20P Central opening portion 21 of uniform placement jig Outer portion 22 of uniform placement jig Aramid rod insertion portion 23 PC steel wire insertion portion 26 Aramid tape cloth S Cable member

Claims (4)

A hollow column whose lower part is buried in the ground and standing on the ground,
A reinforcing portion disposed in a cavity of the hollow column;
A flexible pipe material for guiding the cable member through the reinforcing portion;
A hollow column characterized by comprising: The reinforcing part is
A plurality of aramid rods;
Multiple steel wires,
An equal placement jig for passing the flexible pipe material and alternately arranging the plurality of aramid rods and the plurality of steel wires alternately in the circumferential direction of the hollow column in the cavity of the hollow column;
The hollow column according to claim 1, comprising:   The hollow column according to claim 2, wherein the uniform arrangement jig has a central opening for allowing the flexible pipe material to pass therethrough.   The opening for inserting the said flexible pipe material in the said hollow of the said hollow column is formed in the said lower part of the said hollow column, The Claim 1 thru | or 3 characterized by the above-mentioned. Hollow column.

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