CN211007875U - FRP reinforced concrete pole - Google Patents
FRP reinforced concrete pole Download PDFInfo
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- CN211007875U CN211007875U CN201921855908.5U CN201921855908U CN211007875U CN 211007875 U CN211007875 U CN 211007875U CN 201921855908 U CN201921855908 U CN 201921855908U CN 211007875 U CN211007875 U CN 211007875U
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Abstract
The utility model relates to an electric power transmission facility technical field. An FRP (fiber reinforced plastic) reinforced concrete electric pole comprises a pole body, wherein the pole body is of a hollow columnar structure and comprises a reinforcing steel bar frame consisting of FRP bars and a concrete layer wrapping the reinforcing steel bar frame; the reinforcing steel bar frame comprises reinforcing ribs, inner steel hoops, vertical main ribs and spiral ribs, wherein the reinforcing ribs, the inner steel hoops, the vertical main ribs and the spiral ribs are coaxially arranged in sequence from inside to outside. The inner steel hoop is provided with a plurality of positioning clamping blocks, any inner steel hoop is of an annular structure, the outer wall of the inner steel hoop is uniformly distributed with a plurality of positioning clamping blocks, and a plurality of vertical main ribs are uniformly distributed along the circumferential direction of the outer wall of the inner steel hoop, inserted into the positioning clamping blocks and connected with the positioning clamping blocks; the plurality of reinforcing ribs and the vertical main ribs are arranged in one-to-one correspondence and are uniformly distributed along the circumferential direction of the inner wall of the inner steel hoop; the spiral rib is spirally wound on the periphery of the vertical main rib and is enveloped to form a spiral channel. The utility model discloses a FRP reinforced concrete pole tensile strength, anti cracking strength are higher.
Description
Technical Field
The utility model relates to an electric power transmission facility technical field, in particular to FRP reinforced concrete pole.
Background
With the gradual and compact construction of power grids, the working performance of various on-service power transmission lines is directly related to the development of national economy, most of the existing various transmission and distribution power supply lines are erected by concrete pole and cement pole, and the safety of the existing various transmission and distribution power supply lines is the key for ensuring the normal operation of the power transmission lines. Usually, the direction of main stress tension of the electric pole is definite, the bearing capacity in each direction is not equal, the bearing capacity of the electric pole in some directions is still insufficient, and the tensile strength of the electric pole in the stress direction needs to be enhanced by using a stay wire. And current pole framework of steel reinforcement structure is comparatively complicated, and the assembly is inconvenient, and the pole rusts easily, takes place deformation, and structural stability is lower.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a simple to operate, structural strength is high, and the FRP reinforced concrete pole that weight is lighter can improve the relevant index and the durability of bearing of pole effectively, prolongs the labour life-span of pole.
In order to achieve the above purpose, the utility model adopts the technical proposal that:
an FRP (fiber reinforced plastic) reinforced concrete electric pole comprises a pole body, wherein the pole body is of a hollow columnar structure and comprises a reinforcing steel bar frame consisting of FRP bars and a concrete layer wrapping the reinforcing steel bar frame; the reinforcing steel bar frame comprises reinforcing ribs, inner steel hoops, vertical main ribs and spiral ribs, the reinforcing ribs, the inner steel hoops, the vertical main ribs and the spiral ribs are coaxially arranged in sequence from inside to outside, wherein,
the inner steel hoop is provided with a plurality of inner steel hoops, any inner steel hoop is of an annular structure, a plurality of positioning clamping blocks are uniformly distributed on the outer wall of the inner steel hoop,
the vertical main ribs are uniformly distributed along the circumferential direction of the outer wall of the inner steel hoop, are inserted into the positioning clamping blocks and are connected with the positioning clamping blocks;
the reinforcing ribs and the vertical main ribs are arranged in one-to-one correspondence and are uniformly distributed along the circumferential direction of the inner wall of the inner steel hoop, and one end of each reinforcing rib is connected with the inner wall of the inner steel hoop;
the spiral rib is spirally wound on the periphery of the vertical main rib and is enveloped to form a spiral channel.
Furthermore, the strengthening rib includes connecting portion and core, connecting portion with the inner wall connection of interior steel hoop, the surface of core is equipped with the screw thread.
Furthermore, the front end of the positioning fixture block is provided with a clamping groove for fixing the vertical main rib, and the rear end of the positioning fixture block is an arc-shaped plane connected with the outer wall of the inner steel hoop.
Furthermore, the number of the vertical main ribs is 12, and the vertical main ribs are uniformly distributed around the central shaft of the rod body; the diameters of the vertical main ribs are 10-12 mm; the vertical main ribs outside the inner steel hoop in the directions of 12 o 'clock and 6 o' clock are 3500-4000mm long; the vertical main rib lengths of the inner steel hoop in the directions of 3 o 'clock and 9 o' clock are 6500-7000 mm; the length of the other vertical main ribs is 9950 and 9980 mm.
Furthermore, the distance between the spiral ribs is 50-110 mm.
Further, the annular thickness of the inner steel hoop is 10-12 mm.
Further, the thickness of the concrete layer is 60-65 mm.
Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:
1. the utility model discloses a FRP reinforced concrete pole tensile strength, anti cracking strength are higher. The reinforcing steel bar frame formed by the FRP bars can better solve the problem of corrosion of the reinforcing steel bars, improve the durability of the electric pole and prolong the service life of the electric pole; by arranging the reinforcing ribs, the effect of enhancing the safety of the structure can be achieved, and the uneven size of the concrete layer inside the concrete pouring box can be prevented; by arranging the vertical main ribs, the structural strength of each position of the rod body can be reasonably controlled so as to adapt to the structural requirements of transportation and installation; by arranging the spiral ribs, the strength of the side wall of the electric pole is effectively enhanced, the electric pole is not easy to damage even if being impacted, and the product quality is improved; through setting up interior steel hoop, be convenient for vertical main muscle sets up along interior steel hoop, sets up the effect that the location fixture block played the location including on the steel hoop, is convenient for confirm the position of vertical main muscle and is convenient for be connected vertical main muscle and interior steel hoop fixedly.
2. Through setting up the vertical main muscle that differs in length, save the material under the prerequisite that satisfies pole structural safety requirement.
Drawings
Fig. 1 is a schematic structural diagram of an FRP reinforced concrete pole of the present invention.
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 2
Fig. 3 is a schematic view of a local structure of the FRP reinforced concrete pole of the present invention.
Fig. 4 is a schematic view of the construction of the steel bar frame (without the spiral bars).
Fig. 5 is a schematic structural diagram of the reinforcing rib of the present invention.
Fig. 6 is a schematic structural diagram of the positioning fixture block of the present invention.
Wherein, labeled in the figures: 1-a concrete layer; 2-reinforcing ribs; 3-inner steel hoop; 4-vertical main reinforcement; 5-spiral ribs; 6, positioning a fixture block; 7-a connecting part; 8-a core body; 9-thread; 10-a card slot; 11-arc plane.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
An FRP (fiber reinforced plastic) reinforced concrete electric pole comprises a pole body, wherein the pole body is of a hollow columnar structure, the pole body comprises a reinforcing steel bar frame formed by FRP bars and a concrete layer 1 wrapping the reinforcing steel bar frame, and the thickness of the concrete layer 1 is 60-65 mm; the reinforcing steel bar frame comprises a reinforcing rib 2, an inner steel hoop 3, a vertical main rib 4 and a spiral rib 5, the reinforcing rib 2, the inner steel hoop 3, the vertical main rib 4 and the spiral rib 5 are coaxially arranged in sequence from inside to outside, wherein,
a plurality of inner steel hoops 3 are arranged, and the annular thickness of each inner steel hoop 3 is 10-12 mm; any inner steel hoop 3 is of an annular structure, a plurality of positioning fixture blocks 6 are uniformly distributed on the outer wall of the inner steel hoop 3,
the vertical main ribs 4 are uniformly distributed along the circumferential direction of the outer wall of the inner steel hoop 3, inserted into the positioning fixture block 6 and connected with the positioning fixture block 6;
the reinforcing ribs 2 and the vertical main ribs 4 are arranged in one-to-one correspondence and are uniformly distributed along the circumferential direction of the inner wall of the inner steel hoop 3, and one end of each reinforcing rib 2 is connected with the inner wall of the inner steel hoop 3;
the spiral rib 5 is spirally wound on the periphery of the vertical main rib 4 and is enveloped to form a spiral channel; the distance between the spiral ribs 5 is 50-110 mm.
FRP is Fiber Rein forced Plastics, which is an abbreviation of Fiber reinforced Plastics, and is a common composite material, in FRP, fibers are reinforced Plastics and mainly used for bearing load, and common glass fibers, carbon fibers, aramid fibers and the like are available; the FRP material has the advantages of good corrosion resistance, high specific strength, good fatigue resistance and the like, and on the one hand, the FRP material is applied to a concrete structure and is used as a reinforcing material of a new structure. If FRP ribs are used for replacing reinforcing steel bars or prestressed ribs, the compressive strength is improved. And in some cold places, in order to prevent the road from freezing, a method of spraying salt on the bridge and the road surface is generally adopted to prevent freezing, and chloride ions in the salt can corrode the steel bars, so that the corrosion of the steel bars is intensified, and therefore, the corrosion prevention problem needs to be solved. By using the FRP ribs, the corrosion problem can be greatly reduced, and the maintenance cost is reduced. The utility model can better solve the problem of steel bar corrosion by adopting the steel bar frame consisting of FRP bars, thereby improving the durability and the service life of the electric pole; by arranging the reinforcing ribs 2, the effect of reinforcing the safety of the structure can be achieved, and the uneven size of the concrete layer 1 inside the concrete layer can be prevented during pouring; by arranging the vertical main ribs 4, the structural strength of each position of the rod body can be reasonably controlled so as to adapt to the structural requirements of transportation and installation; by arranging the spiral ribs 5, the strength of the side wall of the electric pole is effectively enhanced, the electric pole is not easy to damage even if being impacted, and the product quality is improved; through steel hoop 3 in setting up, be convenient for vertical main muscle 4 sets up along interior steel hoop 3 including, sets up the effect that positioning fixture block 6 played the location on steel hoop 3, is convenient for confirm the position of vertical main muscle 4 and is convenient for be connected fixedly vertical main muscle 4 and interior steel hoop 3.
The strengthening rib 2 includes connecting portion 7 and core 8, and connecting portion 7 and the inner wall connection of interior ferrule 3, the surface of core 8 are equipped with screw thread 9 for it is more firm when strengthening rib 2 is connected with the concrete.
The front end of the positioning fixture block 6 is provided with a clamping groove 10 for fixing the vertical main rib 4, and the rear end of the positioning fixture block 6 is an arc-shaped plane 11 connected with the outer wall of the inner steel hoop 3. The positioning fixture block 6 is simple in design and convenient to use, installation time of the vertical main ribs 4 can be saved, and installation accuracy of the vertical main ribs 4 can be improved.
The whole atress condition to the pole is analyzed, because the atress that is close to body of rod upper end is less relatively, and the atress that is close to body of rod lower extreme is then relatively great, and consequently vertical main muscle 4 flushes near the tip of the body of rod lower extreme, and wherein the length of most vertical main muscle 4 equals with the length of the body of rod basically, and the length of the vertical main muscle 4 of a small part can be shortened according to actual conditions, saves the material under the prerequisite that satisfies pole atress structural requirement. The vertical main ribs 4 are 12 and are uniformly distributed around the central shaft of the rod body; the diameter of each vertical main rib 4 is 10-12 mm; the length of the vertical main rib 4 in the directions of 12 o 'clock and 6 o' clock outside the inner steel hoop 3 is 3500-4000 mm; the vertical main ribs 4 in the directions of 3 o 'clock and 9 o' clock outside the inner steel hoop 3 are 6500-7000mm long; the rest vertical main ribs 4 are 9950 and 9980mm long. In the embodiment, the diameters of the vertical main ribs 4 are preferably 10 mm; the length of the vertical main rib 4 in the directions of 12 o 'clock and 6 o' clock outside the inner steel hoop 3 is 3500 mm; the vertical main ribs 4 in the directions of 3 o 'clock and 9 o' clock outside the inner steel hoop 3 are 6500mm long; the length of the other vertical main ribs is 9980 mm; the interval of spiral muscle 5 is 110mm, and the annular thickness of interior hoop 3 is 10mm, and the thickness of concrete layer 1 of pouring is 65 mm.
The utility model discloses FRP reinforced concrete pole's manufacturing method does:
firstly, manufacturing a reinforcing steel bar frame, uniformly connecting reinforcing ribs 2 on the inner wall of an inner steel hoop 3 in the circumferential direction, connecting positioning clamping blocks 6 on the outer wall of the inner steel hoop 3, connecting vertical main ribs 4 into the corresponding positioning clamping blocks 6, and spirally winding spiral ribs 5 on the periphery of the vertical main ribs 4;
then, the reinforcing steel bar frame is placed into a mold, and concrete is formed and solidified on the inner periphery and the outer periphery of the reinforcing steel bar frame by adopting a pouring and centrifugal forming method.
The above description is for the detailed description of the preferred possible embodiments of the present invention, but the embodiments are not intended to limit the scope of the present invention, and all equivalent changes or modifications accomplished under the technical spirit suggested by the present invention should fall within the scope of the present invention.
Claims (7)
1. The utility model provides a FRP reinforced concrete pole, includes the body of rod, the body of rod is hollow columnar structure, its characterized in that: the rod body comprises a steel bar frame consisting of FRP bars and a concrete layer wrapping the steel bar frame; the reinforcing steel bar frame comprises reinforcing ribs, inner steel hoops, vertical main ribs and spiral ribs, the reinforcing ribs, the inner steel hoops, the vertical main ribs and the spiral ribs are coaxially arranged in sequence from inside to outside, wherein,
the inner steel hoop is provided with a plurality of inner steel hoops, any inner steel hoop is of an annular structure, a plurality of positioning clamping blocks are uniformly distributed on the outer wall of the inner steel hoop,
the vertical main ribs are uniformly distributed along the circumferential direction of the outer wall of the inner steel hoop, are inserted into the positioning clamping blocks and are connected with the positioning clamping blocks;
the reinforcing ribs and the vertical main ribs are arranged in one-to-one correspondence and are uniformly distributed along the circumferential direction of the inner wall of the inner steel hoop, and one end of each reinforcing rib is connected with the inner wall of the inner steel hoop;
the spiral rib is spirally wound on the periphery of the vertical main rib and is enveloped to form a spiral channel.
2. The FRP-concrete electric pole as recited in claim 1, wherein: the strengthening rib includes connecting portion and core, connecting portion with the inner wall connection of interior steel hoop, the surface of core is equipped with the screw thread.
3. The FRP-concrete electric pole as recited in claim 1, wherein: the front end of the positioning fixture block is provided with a clamping groove for fixing the vertical main rib, and the rear end of the positioning fixture block is an arc-shaped plane connected with the outer wall of the inner steel hoop.
4. The FRP-concrete electric pole as recited in claim 1, wherein: the number of the vertical main ribs is 12, and the vertical main ribs are uniformly distributed around the central shaft of the rod body; the diameters of the vertical main ribs are 10-12 mm; the vertical main ribs outside the inner steel hoop in the directions of 12 o 'clock and 6 o' clock are 3500-4000mm long; the vertical main rib lengths of the inner steel hoop in the directions of 3 o 'clock and 9 o' clock are 6500-7000 mm; the length of the other vertical main ribs is 9950 and 9980 mm.
5. The FRP-concrete electric pole as recited in claim 1, wherein: the pitch of the spiral ribs is 50-110 mm.
6. The FRP-concrete electric pole as recited in claim 1, wherein: the annular thickness of the inner steel hoop is 10-12 mm.
7. The FRP-concrete electric pole as recited in claim 1, wherein: the thickness of the concrete layer is 60-65 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921855908.5U CN211007875U (en) | 2019-10-30 | 2019-10-30 | FRP reinforced concrete pole |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921855908.5U CN211007875U (en) | 2019-10-30 | 2019-10-30 | FRP reinforced concrete pole |
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| CN211007875U true CN211007875U (en) | 2020-07-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798190A (en) * | 2018-08-09 | 2018-11-13 | 江西荣仁电力器材有限公司 | Electric pole, mold |
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2019
- 2019-10-30 CN CN201921855908.5U patent/CN211007875U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798190A (en) * | 2018-08-09 | 2018-11-13 | 江西荣仁电力器材有限公司 | Electric pole, mold |
| CN108798190B (en) * | 2018-08-09 | 2023-12-05 | 江西荣仁电力器材有限公司 | Telegraph pole and mould |
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