CN211115095U

CN211115095U - Reinforced concrete pole

Info

Publication number: CN211115095U
Application number: CN201921848996.6U
Authority: CN
Inventors: 陈宗平; 周星宇; 周济; 宁璠; 陈德莱
Original assignee: Guangxi University
Current assignee: Guangxi University
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2020-07-28
Anticipated expiration: 2029-10-30

Abstract

The utility model relates to an electric power transmission facility technical field. A reinforced concrete pole comprises an inner frame body and a concrete layer poured and wrapped on the inner frame body, wherein the inner frame body comprises a steel bar frame formed by FRP (fiber reinforced plastic) bars, and FRP fiber cloth is stuck to the inner side and the outer side of the steel bar frame; the reinforcing steel bar frame comprises vertical main bars, inner steel hoops and spiral bars; the inner steel hoop is provided with a plurality of limiting clamping blocks, the inner steel hoop is of an annular structure, the inner ring of the inner steel hoop is evenly distributed with the limiting clamping blocks, the vertical main ribs are evenly distributed in the inner steel hoop along the circumferential direction, the vertical main ribs are in inserted tight fit with the limiting clamping blocks, and the spiral ribs are arranged along the spiral extension of the length direction of the vertical main ribs. The utility model discloses can reduce the condition that horizontal and vertical crackle appears in the pole, strengthen the stability and the security of pole, improve the life of pole.

Description

Reinforced concrete pole

Technical Field

The utility model relates to an electric power transmission facility technical field, in particular to reinforcement type 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 poles, 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. The current pole receives the influence of factors such as environmental erosion, artificial destruction, and horizontal and vertical crackle appear easily after using certain age in a lot of poles, and cracked phenomenon appears in pole local concrete, greatly reduced the service life of pole, serious easy emergence destroys the condition that causes the outage suddenly easily, and the production life who gives people brings great inconvenience, causes huge loss of property and casualties accident.

Fiber Reinforced Polymer/Plastic (FRP) is a high-performance Fiber composite material and a special engineering Fiber composite material, and has light weight, hardness, high stretchability, high wear resistance and high corrosion resistance. Chinese patent CN201020261312.5 discloses a prestressed FRP reinforced concrete structural member, which can effectively improve the rigidity and the bending and shearing resistance of the structure. However, the height of the electric pole is generally higher, and the method has single reinforcing mode and insufficient stability.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a reinforcement type pole is provided, reduce the pole the condition of horizontal and vertical crackle appears, strengthen the stability and the security of pole, improve the life of pole.

In order to achieve the above purpose, the utility model adopts the technical proposal that:

a reinforced concrete pole comprises an inner frame body and a concrete layer poured and wrapped on the inner frame body, wherein the inner frame body comprises a steel bar frame formed by FRP (fiber reinforced plastic) bars, and FRP fiber cloth is stuck to the inner side and the outer side of the steel bar frame; the reinforcing steel bar frame comprises vertical main bars, inner steel hoops and spiral bars; the inner steel hoop is provided with a plurality of limiting clamping blocks, the inner steel hoop is of an annular structure, the inner ring of the inner steel hoop is evenly distributed with the limiting clamping blocks, the vertical main ribs are evenly distributed in the inner steel hoop along the circumferential direction, the vertical main ribs are in inserted tight fit with the limiting clamping blocks, and the spiral ribs are arranged along the spiral extension of the length direction of the vertical main ribs.

Furthermore, the front end of the limiting clamping block is provided with a clamping groove for fixing the vertical main rib, and the rear end of the positioning clamping block is an arc-shaped plane connected with the inner wall of the inner steel hoop.

Furthermore, an included angle between a tangent line of any point on the spiral rib and the horizontal direction is 20-40 degrees; the pitch of the spiral ribs is 50-110 mm.

Furthermore, the diameter of the vertical main rib is 10-14 mm.

Further, the annular thickness of the inner steel hoop is 10-12 mm.

Further, the surface of concrete layer coats has the anticorrosive coating, the anticorrosive coating adopts polyethylene, pitch or epoxy material to make.

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 reinforced concrete pole is combined with the FRP fiber cloth on the basis of the FRP ribs, so that the bearing capacity of the pole is greatly improved, the tensile strength and the anti-cracking strength are higher, the reinforcing steel bar corrosion problem can be better solved by adopting a reinforcing steel bar frame consisting of the FRP ribs, the durability of the pole is improved, and the service life of the pole is prolonged; by arranging the vertical main ribs, the structural strength of each position of the electric pole 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 ferrule, be convenient for vertical main muscle sets up along interior ferrule, set up spacing fixture block and play the effect of location on the interior ferrule, be convenient for confirm the position of vertical main muscle and be convenient for with vertical main muscle fixed with interior ferrule, adopt FRP fibre cloth to paste the inside and outside both sides at the steel reinforcement frame, on the one hand because FRP fibre cloth has stronger tensile strength, can increase the tensile bearing capacity of pole, improve the atress and the anti-seismic performance of pole, in addition because the corrosion resistance of FRP fibre cloth, can improve the durability of pole, reduce its back maintenance cost.

2. The utility model discloses a set up spacing fixture block, can be convenient for fix vertical main muscle, improve the assembly speed of steel reinforcement frame, ensure to connect the security.

Drawings

Fig. 1 is a schematic structural view of the inner frame body of the present invention.

Fig. 2 is a schematic structural view of the steel bar frame of the present invention.

Fig. 3 is the local structure schematic diagram of the utility model discloses reinforcement type concrete pole.

Fig. 4 is a schematic structural diagram of the limiting fixture block of the present invention.

Wherein the reference numerals are: 1-a concrete layer; 2-FRP fiber cloth; 3-vertical main reinforcement; 4-inner steel hoop; 5-spiral ribs; 6-limiting a fixture block; 7-a clamping groove; 8-arc plane; 9-anticorrosive coating.

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.

Referring to fig. 1 to 4, a reinforced concrete pole includes an inner frame and a concrete layer 1 poured and wrapped around the inner frame, wherein the thickness of the concrete layer 1 is 60-65 mm; the inner frame body comprises a reinforcing steel bar frame consisting of FRP bars, and FRP fiber cloth 2 is stuck on the inner side and the outer side of the reinforcing steel bar frame, the utility model is combined with the FRP fiber cloth 2 on the basis of the FRP bars, so that the bearing capacity of the electric pole is greatly improved, and the tensile strength and the anti-cracking strength are higher; the reinforcing steel bar frame comprises vertical main bars 3, inner steel hoops 4 and spiral bars 5; interior steel hoop 4 is equipped with a plurality of, and arbitrary interior steel hoop 4 has the spacing fixture block 6 of a plurality of for loop configuration and evenly distributed in the inner ring of interior steel hoop 4, and vertical main muscle 3 is within interior steel hoop 4 along the even range of circumferencial direction to vertical main muscle 3 and the tight fit setting of pegging graft of spacing fixture block 6, spiral muscle 5 extends the setting along the length direction heliciform of vertical main muscle 3. Wherein, the diameter of the vertical main rib 3 is 10-14 mm; the annular thickness of the inner steel hoop 4 is 10-12 mm.

The reinforced concrete pole can better solve the problem of corrosion of the steel bar by adopting the steel bar frame consisting of the FRP bars, thereby improving the durability and the service life of the pole; by arranging the vertical main ribs 3, the structural strength of each position of the electric pole 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 setting up interior steel hoop 4, be convenient for vertical main muscle 3 sets up along interior steel hoop 4, set up spacing fixture block 6 and play the effect of location including on steel hoop 4, be convenient for confirm the position of vertical main muscle 3 and be convenient for fix vertical main muscle 3 with interior steel hoop 4, adopt FRP fibre cloth 2 to paste in the inside and outside both sides of steel reinforcement frame, on the one hand because FRP fibre cloth 2 has stronger tensile strength, can increase the tensile bearing capacity of pole, improve the atress and the anti-seismic performance of pole, in addition because FRP fibre cloth 2's corrosion resistance, can improve the durability of pole, reduce its back-stage maintenance cost.

The utility model discloses a 6 front ends of spacing fixture block are equipped with the draw-in groove 7 that is used for fixed vertical main muscle 3, and the rear end of location fixture block is the arc plane 8 with the interior wall connection of interior hoop 4. Through setting up spacing fixture block 6, can be convenient for fixed vertical main muscle 3, improve the assembly speed of reinforcing bar frame, ensure the security of connecting.

The included angle between the tangent line of any point on the spiral rib 5 and the horizontal direction is 20-40 degrees; the distance between the spiral ribs 5 is 50-110 mm. The screw thread interval of spiral muscle 5 is less, makes the whole atress of pole more even, improves the bearing capacity of pole lateral wall.

In order to prevent the concrete layer 1 from being corroded, the surface of the concrete layer 1 is coated with a corrosion prevention layer 9, and the corrosion prevention layer 9 is made of polyethylene, asphalt or epoxy resin materials.

The utility model relates to a manufacturing method of reinforcement type concrete pole does:

firstly, manufacturing a steel bar frame, uniformly welding limiting fixture blocks 6 on the inner wall of an inner steel hoop 4 in the circumferential direction, inserting and fixing the vertical main bars 3 in the corresponding limiting fixture blocks 6, and spirally winding the spiral bars 5 on the periphery of the vertical main bars 3;

then FRP fiber cloth 2 is stuck on the inner side and the outer side of the reinforcing steel bar frame to manufacture the whole inner frame body,

then, the inner frame body is placed into a mould, and concrete is formed and solidified at the periphery in the inner frame body by adopting a pouring and centrifugal forming method.

The utility model discloses a FRP muscle and FRP fibre cloth 2 are through the mould extrusion of speciality and draw the shaping, have the quality light, and tensile strength is high, the strong and economic environmental protection's of corrosion resistance advantage.

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

1. A reinforcement type concrete pole which is characterized in that: the concrete-filled steel bar frame comprises an inner frame body and a concrete layer poured and wrapped on the inner frame body, wherein the inner frame body comprises a steel bar frame formed by FRP (fiber reinforced plastic) bars, and FRP fiber cloth is stuck on the inner side and the outer side of the steel bar frame; the reinforcing steel bar frame comprises vertical main bars, inner steel hoops and spiral bars; the inner steel hoop is provided with a plurality of limiting clamping blocks, the inner steel hoop is of an annular structure, the inner ring of the inner steel hoop is evenly distributed with the limiting clamping blocks, the vertical main ribs are evenly distributed in the inner steel hoop along the circumferential direction, the vertical main ribs are in inserted tight fit with the limiting clamping blocks, and the spiral ribs are arranged along the spiral extension of the length direction of the vertical main ribs.

2. A reinforced concrete pole as recited in claim 1, wherein: the front end of the limiting clamping block is provided with a clamping groove for fixing the vertical main rib, and the rear end of the limiting clamping block is an arc-shaped plane connected with the inner wall of the inner steel hoop.

3. A reinforced concrete pole as recited in claim 1, wherein: the included angle between the tangent line of any point on the spiral rib and the horizontal direction is 20-40 degrees; the pitch of the spiral ribs is 50-110 mm.

4. A reinforced concrete pole as recited in claim 1, wherein: the diameter of the vertical main rib is 10-14 mm.

5. A reinforced concrete pole as recited in claim 1, wherein: the annular thickness of the inner steel hoop is 10-12 mm.

6. A reinforced concrete pole as recited in claim 1, wherein: the surface coating of concrete layer has the anticorrosive coating, the anticorrosive coating adopts polyethylene, pitch or epoxy material to make.

7. A reinforced concrete pole as recited in claim 1, wherein: the thickness of the concrete layer is 60-65 mm.