JP2008180032A - Steel tower, rainwater draining device, and refuse remover - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a steel tower which is prevented from corrosion caused by wetting of a concrete foundation that supports main supports on the ground, and to provide a rainwater draining device and a refuse remover. <P>SOLUTION: The steel tower 1 is a transmission line steel tower for erecting a transmission line, for instance. Supports of the steel tower 1 include the main supports 4 supported on the ground 3 by the concrete foundation 2, horizontal girders 5 connecting between the main supports 4, and diagonals 6 connecting between the main supports 4 and between the horizontal girders 5. In the steel tower 1, the main support 4 forms a predetermined angle with respect to the vertical direction. Each of the supports including the main supports 4, the horizontal girders 5, and the diagonals 6, is formed of an angle steel (angle bar) having an L-shaped cross section or a steel pipe. Further the steel tower 1 is provided with the rainwater draining devices 7 on the main supports 4 and the diagonals 6, for collecting and draining rainwater flowing along the supports. Furthermore the steel tower 1 has the refuse removers 8 each set in the vicinity of the main support 4 on an upper portion of the concrete foundation 2, which function to prevent adhesion of refuse such as leaves and dust to the main supports. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a steel tower in which a pillar material is supported on the ground by a concrete foundation, a rainwater drainage device installed in the steel tower, and a dust guard. More specifically, it is possible to prevent corrosion due to wetting of the concrete foundation by providing a wetting prevention means for preventing the wetting of the concrete foundation by rainwater transmitted through the column material.

  In general, in various types of steel towers such as power transmission line steel towers, angle steels or pipe-shaped steel pipes having an L-shaped cross section are used as pillar materials. The steel tower includes, as a pillar material, a main pillar material supported on the ground by a concrete foundation and a diagonal member that connects the main pillar materials to each other. In addition, most of the rainwater that falls on each pillar material is transmitted through each pillar material and is absorbed into the concrete foundation through the main pillar material.

  Various types of devices have been proposed for preventing rainwater from intensively falling from specific locations on a steel tower (see, for example, Patent Documents 1 to 3).

  Patent Document 1 proposes a rainwater stopper for preventing a concentrated fall from a specific location of rainwater in a steel tower using a steel pipe as a pillar material. The rainwater stop described in Patent Document 1 has a first drainer having a hook-shaped water shielding plate fixed around a steel pipe by a band-like band, and a pipe fixed around the steel pipe by a bind wire. It is equipped with a second drainer and prevents concentrated fall from a specific location of rainwater on the steel tower.

  Patent Document 2 proposes a rainwater draining device for main pillars that prevents a concentrated fall from a specific location of rainwater in a steel tower that uses a steel pipe as a pillar material. The rainwater draining device for main pillar described in Patent Document 2 includes an annular water collecting groove fixed around a steel pipe by a fastening bolt, a water guide portion and a flow guide member connected to the water collecting groove, In this case, concentrated rain from a specific location of rainwater is prevented.

  Patent Document 3 proposes a rainwater drainage device for diagonal materials that prevents a concentrated fall from a specific location of rainwater in a steel tower that uses a steel pipe as a pillar material. The rainwater drainage device for diagonal materials described in Patent Document 3 includes a tubular body fixed around a steel pipe by a core material and a fastener, and prevents concentrated drops from specific locations of rainwater in a steel tower.

  In addition to the above, a corrosion prevention cover for a steel tower foundation that prevents corrosion caused by rainwater on the concrete foundation of the steel tower has been proposed (see, for example, Patent Document 4). The corrosion prevention cover for the steel tower foundation described in Patent Document 4 is applied to the concrete foundation of rainwater by attaching the umbrella-like cover watertight with a rubber magnet for installation from the bottom of the main pillar material to the ground of the concrete foundation. It prevents intrusion and prevents corrosion of the concrete foundation due to rainwater.

JP 2004-107881 A Japanese Utility Model Publication No. 5-87162 Japanese Utility Model Publication No. 5-87163 Japanese Utility Model Publication No. 7-21930

  However, the conventional steel tower described above has the following problems. In the conventional steel tower, there is a problem that the concrete foundation part and the vicinity of the lower end part of the main pillar material are corroded by rainwater that has been transmitted to the concrete foundation part through each pillar material.

  In addition, dust such as leaves and dust tends to accumulate near the main pillar material above the concrete foundation. For this reason, the rainwater that has passed through each pillar material permeates into the dust collected in the vicinity of the main pillar material at the upper part of the concrete foundation part, and the concrete foundation part and the vicinity of the lower end part of the main pillar material are further corroded. There's a problem.

  Further, the rainwater stop device described in Patent Document 1, the main column rainwater discharge device described in Patent Document 2, and the oblique material rainwater discharge device described in Patent Document 3 each use a steel pipe as a column material. There is a problem that it cannot be attached to a steel tower that uses angle steel (an angle material) as a pillar material. Moreover, the rainwater stop device described in Patent Document 1 is fixed around the steel pipe by a band-shaped band or a bind wire, and the rainwater draining device for main pillar described in Patent Document 2 is a fastening bolt. The diagonal rainwater discharge device described in Patent Document 3 is fixed around the steel pipe by a core material and a fastener. Therefore, each device described in Patent Documents 1 to 3 has a problem that it cannot easily perform the attaching operation to the column material.

  Moreover, the corrosion prevention cover of the steel tower foundation described in patent document 4 covers the whole circumference | surroundings of the main pillar material, and cannot attach to the location where the diagonal material is connected in the main pillar material. There is. Furthermore, the corrosion prevention cover for the steel tower foundation described in Patent Document 4 has a problem that the concrete foundation portion is wetted and easily corroded because the concrete foundation portion is covered watertight.

  The present invention has been made to solve such a problem, and provides a steel tower, a rainwater drainage device, and a dust guard that can prevent corrosion due to wetting of a concrete base portion that supports a main pillar material on the ground. For the purpose.

  In order to solve the above-described problems, a steel tower according to the present invention is a steel tower in which a pillar material is supported on the ground by a concrete foundation part, and has a mounting part attached to the pillar material, and a concrete foundation part by rainwater transmitted through the pillar material It is characterized in that it is provided with a wetting prevention means for preventing wetting.

  The steel tower according to the present invention is provided with a wetting prevention means attached to the pillar material by the magnet of the attachment portion. By this wetting prevention means, it is possible to avoid wetting of the concrete base portion by rainwater transmitted through the pillar material.

  In order to solve the above-described problem, the rainwater drainage apparatus according to the present invention is a rainwater drainage apparatus that collects and drains rainwater that travels through the pillar material of the steel tower, and a groove that collects rainwater that travels through the pillar material; The lower end of the groove is provided open, and includes a drainage end that drains rainwater collected by the groove and a magnet attached to the column member. The drainage member collects water by the groove. The rainwater is attached by a magnet in a direction to drain the rainwater from the drain end to the outside of the column member.

  In the rainwater drainage device according to the present invention, a groove portion whose lower end portion is opened as a drainage end portion is attached to a pillar material of a steel tower by a magnet. At this time, the drainage end portion is in a state positioned at the lowermost portion of the groove portion.

  Moreover, in the rainwater drainage apparatus which concerns on this invention, rainwater which propagates the pillar material of a steel tower is collected by the groove part of the drainage member attached to the pillar material. Rainwater collected by the groove flows in the groove and is drained from the drain end to the outside of the rainwater drainage device.

  In order to solve the above-described problems, the dust removal according to the present invention is a steel tower in which the main pillar material is supported on the ground by the concrete foundation, and the dust removal that prevents the dust from adhering to the vicinity of the main pillar at the top of the concrete foundation. An attachment member attached to the main pillar member by a magnet, a rod-shaped first holding member that is connected to the attachment member and is located below the attachment member, and holds a net portion of a predetermined size in the vertical direction; And a rod-like second holding material that is connected to the vicinity of the lower end portion of the first holding material and holds the net portion in the left-right direction.

  In the dust repellent according to the present invention, the attachment member is attached in the vicinity of the concrete foundation portion of the main pillar material by the magnet. In addition, in the dust repellent according to the present invention, the mesh portion of a predetermined size is expanded vertically and horizontally by the first holding member connected to the mounting member and the second holding member connected to the first holding member. In this state, it is held below the attachment member. Thereby, the location near the main pillar material in the upper part of the concrete foundation portion is covered with the net portion.

  In the steel tower according to the present invention, it is possible to avoid wetting of the concrete base portion by rainwater transmitted through the column material by the wetting prevention means. Thereby, it becomes possible to prevent the corrosion by the wetness of a concrete foundation part.

  In the rainwater drainage device according to the present invention, the rainwater that travels through the pillar material of the steel tower is collected by the groove portion of the drainage member attached to the pillar material, and drained from the drainage end to the outside of the rainwater drainage device. Thereby, it is possible to reduce the amount of rainwater that is transmitted through the pillar material and soaks into the concrete foundation, and prevents corrosion due to wetting of the concrete foundation.

  Moreover, as for the rainwater drainage apparatus which concerns on this invention, a drainage member is attached to the predetermined position of the pillar material of a steel tower with a magnet. As a result, it is possible to easily attach the main pillar to an arbitrary position.

  In the dust repellent according to the present invention, the vicinity of the main pillar material in the upper part of the concrete foundation part is covered with the net part, and the adhesion of the dust to the vicinity of the main pillar material in the upper part of the concrete foundation part is prevented, It can prevent the concrete foundation from getting wet by rainwater soaked in. Thereby, it becomes possible to prevent corrosion due to wetting near the lower end of the concrete foundation.

  Further, in the dust guard according to the present invention, the attachment member is attached in the vicinity of the concrete foundation portion of the main pillar member by the magnet, and is installed in the vicinity of the main pillar member at the upper part of the concrete foundation portion. Thereby, it becomes possible to easily install the upper part of the concrete foundation near the main pillar.

  Hereinafter, a steel tower, a rainwater drainage apparatus, and a dust eliminator according to the present invention will be described with reference to the drawings.

<Configuration example of the steel tower of this embodiment>
FIG. 1 is an explanatory diagram illustrating a configuration example of a steel tower 1 according to the present embodiment. The steel tower 1 is, for example, a power transmission line steel tower on which a power transmission line is installed. As the pillar material, the steel tower 1 connects the main pillar material 4 supported on the ground 3 by the concrete foundation 2, the horizontal girder material 5 that connects the main pillar materials 4, and the main pillar material 4 and the horizontal girder material 5. The diagonal member 6 is provided. In the steel tower 1 shown in FIG. 1, the main pillar material 4 has a predetermined angle with respect to the vertical direction. As each of the pillar materials of the main pillar material 4, the horizontal girder material 5, and the diagonal material 6, angle steel or a pipe-shaped steel pipe having an L-shaped cross section is used.

  Further, the main pillar material 4 and the diagonal member 6 of the tower 1 are provided with a rainwater drainage device 7 for collecting and draining rainwater transmitted through each pillar material. Details of the configuration of the rainwater drainage device 7 will be described later. Furthermore, a dust guard 8 is installed in the vicinity of the main pillar 4 at the top of the concrete foundation 2 of the steel tower 1. The configuration of the dust guard 8 will be described later.

<Configuration example of the rainwater drainage device of the first embodiment>
Next, a first embodiment of the rainwater drainage device of the present invention will be described. 2 to 5 are explanatory views showing the configuration of the rainwater drainage device 7a according to the first embodiment. FIG. 2 is a plan view showing a configuration of a rainwater drainage device 7a attached to the outer surface of the column member 9 described later, and FIG. 3 shows a configuration of a rainwater drainage device 7a attached to the outer surface of the column member 9 described later. It is a side view to show, and shows the state seen from B of FIG. FIG. 4 is a plan view showing the configuration of a rainwater drainage device 7a attached to the inner surface of the pillar material 9 described later, and FIG. 5 shows the configuration of the rainwater drainage device 7a attached to the inner surface of the pillar material 9 described later. It is a side view to show, and shows the state seen from H of FIG.

  As shown in FIGS. 2 to 5, the rainwater drainage device 7 a is attached to a pillar material 9 of a main pillar material 4 or an oblique material 6 made of angle steel having an L-shaped cross section. The rainwater drainage device 7 a is installed on the outer surfaces C and D or the inner surfaces I and J of the column member 9.

  As shown in FIGS. 2 to 5, the rainwater drainage device 7 a includes a drainage rail 11 having a drainage groove 11 b opened at one end as a drainage end 11 a and a connecting member 13 that couples the plurality of drainage rails 11. And is configured. The rainwater drainage device 7a is configured to include, for example, four drainage rails 11, and two drainage rails 11 are attached to each of the surfaces C and D (or the surfaces I and J) in a state where the rainwater drainage device 7a is installed on the pillar material 9. It becomes a state. In addition, in the state where the rainwater drainage device 7a is installed on the column member 9, the two drainage rails 11 respectively attached to the surfaces C and D (or the surfaces I and J) are the arrow G in FIG. 3 and the arrow M in FIG. As shown in FIG. The drainage groove 11b is an example of a groove part, and the drainage rail 11 is an example of a drainage member.

  Further, as shown in E of FIG. 3 and K of FIG. 5, in a state where the rainwater drainage device 7 a is installed on the column member 9, each drainage rail 11 has a predetermined angle with respect to the vertical direction of the installation angle of the column member 9. Have an angle. Further, as shown in F of FIG. 3 and L of FIG. 5, each drainage rail 11 protrudes from the end of the column 9 by a predetermined length in a state where the rainwater drainage device 7 a is installed on the column 9.

  The drain rail 11 has a rubber magnet 11c, and the connecting member 13 has a rubber magnet 13a. The drainage rail 11 and the connecting member 13 are installed with respect to the column member 9 by the rubber magnets 11c and 13a. Thereby, it becomes possible to easily attach the rainwater drainage device 7a to the column member 9.

  The rubber magnets 11c and 13a are constituted by rubber magnets that can be easily cut by a scissors or the like, for example. Furthermore, the drainage rail 11 is comprised by the semi-soft member which can be easily cut | disconnected with a hook etc., such as rubber | gum, for example. Thereby, according to the size and shape of the column member 9, the protruding amount of the drainage rail 11 shown in F of FIG. 3 and L of FIG. Can be cut. Therefore, it is not necessary to prepare the rainwater drainage device 7a having the separate discharge rails 11 according to the size of the columnar material 9 and the like.

  Furthermore, in the rainwater drainage device 7a shown in FIGS. 2 to 5, four drainage rails 11 are provided, and when installed on the column member 9, the outer surfaces C and D (or the inner surfaces I and J) are provided. The two drainage rails 11 that are respectively attached are connected at a predetermined interval as shown in G of FIG. 3 (or M of FIG. 5). Thereby, it becomes possible to attach to the pillar material 9 stably.

  Separately from this, in the state where the rainwater drainage device 7 a includes, for example, two, three, five, etc. drainage rails 11 and is installed on the columnar material 9, each drainage rail 11 is located outside the columnar material 9. It may be connected by the connecting member 13 so as to be attached to both or one of the surfaces C and D (or the inner surfaces I and J).

<Example of rainwater drainage of the rainwater drainage device of the first embodiment>
Next, an example of rainwater collection and drainage that travels through the column 9 by the rainwater drainage device 7a will be described. Rainwater that travels through the column 9 is collected by the drainage groove 11b of the drainage rail 11, and flows through the drainage groove 11b and flows through the drainage end 11a of the rainwater drainage device 7a as shown by the thick arrows in FIGS. It is discharged outside.

  Here, in the rainwater drainage device 7a shown in FIGS. 2 to 5, each drainage rail 11 is in a direction perpendicular to the installation angle of the column member 9 as shown by an arrow E in FIG. 3 and an arrow K in FIG. 5. It has a predetermined angle. Thereby, the flow in the drainage groove 11b of the rainwater collected by the drainage groove 11b can be promoted, and the rainwater can be collected and drained efficiently.

  Moreover, as shown to F of FIG. 3 and L of FIG. 5, each drainage rail 11 of the rainwater drainage apparatus 7a protrudes from the edge part of the pillar material 9 predetermined length. As a result, the rainwater drainage device 7 a can reliably discharge the collected rainwater from a position away from the pillar material 9.

  As shown in FIG. 1, by attaching the rainwater drainage device 7 a to each column material of the steel tower 1, it becomes possible to discharge rainwater transmitted through each column material to the outside of each column material. As a result, it is possible to reduce the amount of rainwater that soaks into the concrete foundation portion 2 that supports the main pillar material 9, and to prevent corrosion due to wetting of the concrete foundation portion 2.

<Configuration Example of Rainwater Drainage Device of Second Embodiment>
Next, a second embodiment of the rainwater drainage device of the present invention will be described. 6 to 10 are explanatory views showing the configuration of the rainwater drainage device 7b according to the second embodiment. FIG. 6 is a perspective view showing the configuration of the rainwater drainage device 7b. FIG. 7 is a side view showing the configuration of the rainwater drainage device 7b, and shows a state seen from O in FIG. FIG. 8 shows a PP cross section of FIG. 6 of the rainwater drainage device 7b. 9 shows an RR section of FIG. 7, and FIG. 10 shows a QQ section of FIG.

  As shown in FIGS. 6 to 10, the rainwater drainage device 7 b is attached to the main column member 4 or the column member 10 of the diagonal member 6 constituted by a pipe-shaped steel pipe. The rainwater drainage device 7 b has drainage grooves 12 b that are open at both ends as drainage end portions 12 a, and drainage rails 12 that are attached around the column member 10 and drainage rails 12 that are attached around the column member 10. And an end treatment tool 14 attached to the end 12a.

  The drainage rail 12 is attached to the periphery of the column member 10 by a rubber magnet 12c so that both drainage end portions 12a are located at the lowermost part. The end processing tool 14 includes a processing tool mounting portion 14a that has a rubber magnet 14e and is attached to the column member 10, a center plate 14b that is positioned between both drainage end portions 12a of the drainage rail 12, and an upper side of the center plate 14b. The umbrella part 14c which covers both the drainage end parts 12a, and the V-groove-shaped drainage part 14d located below the both drainage end parts 12a are provided. In a state where the rainwater drainage device 7 b is attached to the column member 10, the vicinity of both drainage end portions 12 a of the drainage rail 12 overlaps with the processing tool attachment portion 14 a of the end portion processing tool 14. The drainage groove 12b is an example of a groove part, and the drainage rail 12 is an example of a drainage member.

  As described above, the drain rail 12 and the end treatment tool 14 include a rubber magnet, and are attached to the column member 10 by the rubber magnet. This makes it possible to easily attach the rainwater drainage device 7b to the pillar material 10.

  The rubber magnets 12c and 14e are constituted by rubber magnets that can be easily cut by a scissors or the like, for example. Further, the drain rail 12 is made of a semi-soft member such as rubber that can be easily cut with scissors. Thereby, according to the magnitude | size, shape, etc. of the pillar material 10, it becomes possible to cut | disconnect the drain edge part 12a by the worker at the installation site of the rainwater drainage device 7b. Therefore, it is not necessary to prepare the rainwater drainage device 7b having the separate discharge rails 12 according to the size of the column member 10 or the like.

<Example of rainwater drainage of the rainwater drainage device of the second embodiment>
Next, an example of rainwater collection and drainage that travels through the column member 10 by the rainwater drainage device 7b will be described. Rainwater that travels through the column 10 is collected by the drainage groove 12b of the drainage rail 12, flows through the drainage groove 12b and is discharged from the drainage end 12a as shown by the thick arrows in FIGS. Rainwater discharged from the end 12a is collected by the V-groove collecting and draining portion 14d and discharged outside the rainwater draining device 7b. As a result, the collected rainwater can be concentrated and discharged at one place, and the range in which the discharged rainwater falls can be narrowed. The collection / drainage part 14d is an example of a second collection / drainage member.

  As shown in FIG. 1, by attaching the rainwater drainage device 7 b to each column material of the steel tower 1, it becomes possible to discharge rainwater transmitted through each column material to the outside of each column material. As a result, it is possible to reduce the amount of rainwater that soaks into the concrete foundation portion 2 that supports the main pillar material 10, and to prevent corrosion due to wetting of the concrete foundation portion 2.

<Example of configuration of dust evacuation according to this embodiment>
Next, the configuration of the dust guard 8 according to the present embodiment will be described. FIG. 11 to FIG. 13 are explanatory views showing a configuration example of the dust guard 8. FIG. 11 is a perspective view showing the dust guard 8, and FIG. 12 is a plan view showing the dust guard 8. FIG. 13 is a side view showing the dust guard 8 and shows a state seen from T in FIG. In FIG. 13 to FIG. 15, an example of the dust guard 8 installed on the inner surface of the main pillar 4 a made of angle steel is shown.

  The dust guard 8 is attached to the vicinity of the concrete base portion 2 of the main pillar 4 a supported on the ground by the concrete base portion 2. As shown in FIG. 13 to FIG. 15, the dust guard 8 is connected to the main column member mounting portion 15 attached to the main column member 4 a and is pivotally connected to the main column member mounting portion 15 by a rotation shaft 16. A rod-shaped first holding member 17 and two second holding members 19 connected to each other by a rotation shaft 18 so as to be rotatable by a predetermined amount. In addition, a mesh portion 21 composed of a plurality of steel wires 20 combined at predetermined intervals in the vertical direction and the horizontal direction is held by the first holding material 17 and the second holding material 19.

  The main pillar material attaching portion 15 is connected to the first holding member 17 by a rotation shaft 16 so as to be rotatable by a predetermined amount, and includes a connecting portion 15b having an L-shaped portion 15a corresponding to the shape of the main pillar material 4a. The main column member attachment portion 15 includes two attachment portions 15d attached to the L-shaped portion 15a so as to be rotatable by a predetermined amount by a rotation shaft 15c. Each attachment portion 15d includes a rubber magnet 15e and can be attached to the main pillar material 4a.

  The net portion 21 is held in the vertical direction by the first holding material 17 and is held in the left-right direction by the second holding material 19. Further, as shown in S of FIG. 11 and U of FIG. 13, the steel wire 20 constituting the mesh portion 21 protrudes a predetermined amount below the second holding material 19. Thereby, in the state in which the dust guard 8 is installed in the main pillar material 4a and the concrete foundation portion 2, a predetermined gap portion is generated below the second holding material.

  The second holding member 19 is made of a semi-soft member such as rubber that can be cut with a scissors or the like. Thereby, the worker who performs the installation work can easily cut a necessary portion of the second holding material 19 according to the installation location of the grounding wire or the like.

  By providing the configuration as described above, the dust guard 8 is installed in a state where the vicinity of the main pillar material 4 a is covered with the net portion 21 at the upper portion of the concrete base portion 2. Thereby, it becomes possible to prevent leaves, dust, etc. adhering to the vicinity of the main pillar material 4a in the upper part of the concrete foundation part 2. FIG. As a result, the rainwater that has traveled through the main pillar material 4a has infiltrated into the dust adhering to the vicinity of the main pillar material 4a at the upper part of the concrete foundation part 2, and the concrete foundation part 2 and the main pillar material 4a are corroded by this rainwater. Can be prevented.

  Moreover, the dust guard 8 is attached to the main pillar material 4a by the main pillar material attachment part 15 provided with the attachment part 15d which has the rubber magnet 15e. Thereby, it becomes possible to easily install the dust guard 8 on the concrete foundation portion 2 and the main pillar material 4a.

  Further, the dust guard 8 covers the vicinity of the main columnar material 4a at the upper part of the concrete foundation part 2 with a net part 21 through which air flows. Thereby, compared with the case where it covers with the sheet | seat etc. with high water-tightness, it becomes possible to prevent the concrete foundation part 2 from being wet.

  Further, the dust guard 8 has a predetermined gap portion below the second holding material 19 in a state where it is installed on the main pillar material 4 a and the concrete foundation portion 2. Thereby, it becomes possible to attach the grounding wire to the main column member with the dust guard 8 installed. In addition, since the predetermined gap portion is provided below the second holding member 19, fine dust that has entered the space covered by the mesh portion 21 flows out of the space covered by the mesh portion 21 due to rainwater or the like. Thereby, the fine dust which entered into the space covered with the net part 21 is collected, and it becomes possible to prevent the corrosion of the concrete foundation part 2 and the main pillar material 4a due to the rain water permeating into these dusts.

  In the dust guard 8, the main column member mounting portion 15 and the first holding member 17 are rotatably connected by a predetermined amount by a rotating shaft 15c, and the second holding member 19 is rotated by a predetermined amount by the rotating shaft 15c. Connected freely. For this reason, according to a shape, an installation angle, etc., when the main pillar material attaching part 15, the 1st holding material 17, and the 2nd holding material 19 rotate with respect to each other with the rotating shaft 15c and the rotating shaft 15c, the shape The same dust guard 8 can be attached to the main pillar 4a and the concrete foundation 2 having different installation angles and the like.

<Wetting prevention example of concrete foundation of steel tower of this embodiment>
Next, an example of preventing wetness of the concrete foundation 2 of the steel tower 1 of the present embodiment will be described. As described above, the tower 1 is provided with the rainwater drainage device 7 (7a, 7b) described in FIGS. These rainwater drainage devices 7a and 7b are an example of a wet prevention means. As a result, rainwater transmitted through the pillars 4, 5, and 6 is collected by the rainwater drainage devices 7a and 7b, and is discharged out of the pillars 4, 5, and 6 as indicated by an arrow A in FIG. Thereby, since rainwater reaches the concrete foundation part 2 that supports the main pillar material 4 and the amount of rainwater infiltrated into the concrete foundation part 2 can be reduced, it is possible to prevent corrosion due to wetting of the concrete foundation part 2. Become.

  Moreover, the steel tower 1 is provided with the dust guard 8 described with reference to FIGS. 11 to 13 in the vicinity of the main pillar member 4 in the upper part of the concrete foundation part 2. The dust guard 8 is also an example of a wetting prevention means. As a result, it is possible to prevent leaves, dust and the like from accumulating in the vicinity of the main pillar material 4 in the upper part of the concrete foundation part 2, and the concrete foundation part 2 and the main pillar material 4 due to rain water soaked in these dusts. It becomes possible to prevent corrosion.

  INDUSTRIAL APPLICABILITY The present invention is applied to a steel tower in which a pillar material is supported on the ground by a concrete foundation, a rainwater drainage device installed in this steel tower, and a dust guard.

It is explanatory drawing which shows the structural example of the steel tower of this Embodiment. It is a top view of the rainwater drainage device of a 1st embodiment. It is a side view of the rainwater drainage apparatus of 1st Embodiment. It is a top view of the rainwater drainage device of a 1st embodiment. It is a side view of the rainwater drainage apparatus of 1st Embodiment. It is a perspective view of the rainwater drainage apparatus of 2nd Embodiment. It is a side view of the rainwater drainage apparatus of 2nd Embodiment. It is sectional drawing of the rainwater drainage apparatus of 2nd Embodiment. It is sectional drawing of the rainwater drainage apparatus of 2nd Embodiment. It is sectional drawing of the rainwater drainage apparatus of 2nd Embodiment. It is a perspective view of dust prevention of this embodiment. It is a top view of dust prevention of this Embodiment. It is a side view of dust prevention of this embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Steel tower 2 Concrete base part 3 Ground 4 Main pillar material 6 Diagonal material 7, 7a, 7b Rainwater drainage device 8 Dust removal 9 Pillar material 10 Column material 11 Drain rail 11a Drain end 11b Drain groove 11c Rubber magnet 12 Drain rail 12a Drain End portion 12b Drainage groove 12c Rubber magnet 13 Connecting member 14 End treatment tool 14d Drainage / drainage portion 14e Rubber magnet 17 First holding material 19 Second holding material 20 Steel wire 21 Net portion

Claims (9)

In the steel tower where the pillar material is supported on the ground by the concrete foundation,
An iron tower comprising an attachment member attached to the pillar material, and provided with an anti-wetting means for preventing the concrete foundation from being wetted by rainwater transmitted through the pillar material. As the wetting prevention means, it comprises a groove portion for collecting rainwater that propagates through the pillar material, and a drain end portion for draining rainwater collected by the groove portion, the lower end portion being opened,
The rainwater drainage device attached to the pillar material by the attachment member in a direction to drain the rainwater collected by the groove from the drainage end to the outside of the pillar material. The steel tower described. As the wetting prevention means, a rod-shaped first holding member that is connected to the attachment member and is located below the attachment member and holds a mesh portion of a predetermined size in the vertical direction, and a lower end of the first holding member A rod-shaped second holding member that is connected to the vicinity of the portion and holds the net portion in the left-right direction;
The steel tower according to claim 1, further comprising a dust guard for preventing dust from adhering to the vicinity of the pillar material at an upper portion of the concrete foundation. A rainwater drainage device that collects and drains rainwater that travels through pillars of steel towers,
A groove part for collecting rainwater that travels through the pillar material, a drain end part that drains rainwater collected by the groove part, and that is attached to the pillar material. A drainage member having
The rainwater drainage device, wherein the drainage member is attached by the magnet in a direction in which rainwater collected by the groove is drained from the drainage end to the outside of the column member. The rainwater drainage device is attached to a pillar made of angle steel having a L-shaped cross section,
The two drainage members,
The connecting member that connects the two drainage / drainage members to each other so that the two drainage / drainage members are respectively attached to the two outer surfaces or the inner surface of the column member. Rainwater drainage device. The rainwater drainage device is attached to a pillar material composed of a steel pipe,
Both ends of the groove are opened as drain ends,
The rainwater drainage device according to claim 4, further comprising a second drainage / drainage member that is located below each drainage end and collects and drains drainage discharged from each drainage end. A steel tower in which a main pillar material is supported on the ground by a concrete foundation, and is a dust repellent that prevents dust from adhering to the vicinity of the main pillar material above the concrete foundation,
An attachment member attached to the main pillar material by a magnet;
A rod-shaped first holding member that is connected to the attachment member and is positioned below the attachment member, and holds a net portion of a predetermined size in the vertical direction;
A dust repellent, comprising: a rod-shaped second holding member that is connected in the vicinity of a lower end portion of the first holding member and holds the net portion in the left-right direction. The first holding member is connected to the attachment member so as to be rotatable by a predetermined amount,
The dust holder according to claim 7, wherein the second holding member is connected to the first holding member so as to be rotatable by a predetermined amount. The attachment member includes a connection part connected to the first holding member, and an attachment part attached to the connection part so as to be rotatable by a predetermined amount and attached to the main pillar member by the magnet. The dust repellent according to claim 7 or 8.

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