CN103615143A - Electricity distribution pole - Google Patents
Electricity distribution pole Download PDFInfo
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- CN103615143A CN103615143A CN201310631780.5A CN201310631780A CN103615143A CN 103615143 A CN103615143 A CN 103615143A CN 201310631780 A CN201310631780 A CN 201310631780A CN 103615143 A CN103615143 A CN 103615143A
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- steel pipe
- outer steel
- concrete
- power distribution
- distribution rod
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Abstract
The invention discloses an electricity distribution pole which comprises an outer steel pipe and an inner steel pipe. Concrete is filled between the outer steel pipe and the inner steel pipe. The inner steel pipe and the outer steel pipe have the quite high structural strength and the concrete has the advantages of being high in pressure-resisting strength, good in durability, wide in strength rate range and the like. Balancing and coordination of comprehensive indexes such as the durability and the deformation capacity of the concrete are quite critical. In the time of manufacturing, the concrete is poured between the inner steel pipe and the outer steel pipe, so that the concrete is fully spread and solidified and a composite structure is formed. Thus, by means of the method of constraining the concrete with the inner steel pipe and the outer steel pipe, the electricity distribution pole can have high pressure bearing capacity and high pressure resisting capacity. Thus, higher carrying capacity, larger deformation capacity and higher energy absorption capacity are achieved, so that the structural strength of the electricity distribution pole is high.
Description
Technical field
The present invention relates to power distribution equipment technical field, relate in particular to a kind of power distribution rod.
Background technology
At present, power distribution rod is generally made by steel concrete, and owing to meeting with, typhoon front logs in and landform is spacious, be easily subject to wind effect in coastal area, causes power distribution rod impaired.Power distribution rod is impaired mainly to be concentrated on cement pole and falls bar, disconnected bar, especially with old circuit fall, disconnected bar is the most serious.In addition, it is common annular prestressed taper cement electric pole that distribution at present selects electric pole most, due to load development, wire diameter grade is more and more higher, multiloop is joint used more and more, through the common electric pole moment of flexure of verification, be difficult to reach designing requirement, the structural strength of power distribution rod can not meet instructions for use.
Meanwhile, in recent years, in reinforced concrete structure the saline alkali corrosion of reinforcing bar oneself become the problem attracting people's attention.Particularly, in the littoral area of China, due to saline alkali corrosion, steel concrete is aging very serious.The corrosion phenomenon of the steel concrete power distribution rod various degrees in coastal and varieties in saline-alkali areas, causes very large economic loss.Solution is at the coated one deck FRP material in the body of rod outside of power distribution rod at present, FRP material is fibre-reinforced plastics, the English full name of FRP is Fiber Reinforced Polymer, FRP adds glass fiber (GFRP), developed again afterwards the novel enhanced material of the high strength such as carbon fiber (CFRP), aramid fiber (AFRP), high-modulus.Compare with traditional reinforced concrete post, outsourcing FRP layer has corrosion resistance, is therefore more suitable for applying under adverse circumstances.But FRP material exists cost high, the shortcoming of poor ductility, there is the FRP material problem that brittle fracture destroys under reciprocating load in a lot of component test results.
Therefore, how providing a kind of power distribution rod, to have higher structural strength, is current those skilled in the art technical problems urgently to be resolved hurrily.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of power distribution rod, to there is higher structural strength.
In order to achieve the above object, the invention provides following technical scheme:
A power distribution rod, comprises outer steel pipe and interior steel pipe, between described outer steel pipe and described interior steel pipe, is filled with concrete.
Preferably, above-mentioned outer steel pipe and described interior steel pipe are conical shell.
Preferably, on above-mentioned outer steel pipe, be provided with hollow hole, in described hollow hole, be filled with described concrete.
Preferably, above-mentioned hollow hole is circular hole, and is set in qually spaced on described outer steel pipe.
Preferably, the gross area of above-mentioned hollow hole be not more than described outer steel pipe the outside gross area 1/5th.
Preferably, the outside of above-mentioned outer steel pipe is also coated with PET fibrage.
Preferably, above-mentioned PET fibrage is also coated on the two ends of described outer steel pipe.
Preferably, the fibrolaminar material of above-mentioned PET is PET fiber or PET cloth, and described PET fibrage is pasted and is wrapped on described outer steel pipe by epoxy resin.
Preferably, above-mentioned epoxy resin is low-elasticity-modulus epoxy resin.
Preferably, above-mentioned interior steel pipe and described outer steel pipe are continuous sheet steel pipe.
Power distribution rod provided by the invention, comprises outer steel pipe and interior steel pipe, between described outer steel pipe and described interior steel pipe, is filled with concrete.Wherein, interior steel pipe and outer steel pipe itself have very high structural strength, it is high that concrete has compressive strength, good endurance, the features such as strength grade wide ranges, and concrete durability, the balance and coordination of the overall targets such as deformation performance is very important, during making, want concreting between inside steel pipe and outer steel pipe, make concrete fully be full of and solidify, for composite structure, like this, by adopting interior steel pipe, the method of outer steel tube confined concrete, make self to there is stronger pressurized and anti-pressure ability, therefore there is higher supporting capacity, larger deformability and larger energy absorption capability, thereby realize and self there is higher structural strength.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of analysing and observe of the power distribution rod that Fig. 1 provides for the embodiment of the present invention;
The outer structural representation of looking of the power distribution rod that Fig. 2 provides for the embodiment of the present invention.
In upper Fig. 1 and Fig. 2:
The specific embodiment
The embodiment of the present invention provides a kind of power distribution rod, to have higher structural strength.
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 1 and Fig. 2, the structural representation of analysing and observe of the power distribution rod that Fig. 1 provides for the embodiment of the present invention; The outer structural representation of looking of the power distribution rod that Fig. 2 provides for the embodiment of the present invention.
The power distribution rod that the embodiment of the present invention provides, comprises outer steel pipe 2 and interior steel pipe 1, between outer steel pipe 2 and interior steel pipe 1, is filled with concrete 4.Wherein, interior steel pipe 1 and outer steel pipe 2 itself have very high structural strength, it is high that concrete 4 has compressive strength, good endurance, the features such as strength grade wide ranges, and the durability of concrete 4, the balance and coordination of the overall targets such as deformation performance is very important, during making, want concreting 4 between inside steel pipe 1 and outer steel pipe 2, make concrete 4 fully be full of and solidify, for composite structure, like this, by adopting interior steel pipe 1, the method of outer steel pipe 2 confined concretes 4, make self to there is stronger pressurized and anti-pressure ability, therefore there is higher supporting capacity, larger deformability and larger energy absorption capability, thereby realize and self there is higher structural strength.
And, in the structure of interior steel pipe 1 and outer steel pipe 2 confined concretes 4, interior steel pipe 1 and outer steel pipe 2 self mainly in two to stress state-axial compression and hoop tension, and 2 of concrete 4 and interior steel pipe 1 and outer steel pipes have stronger Interface adhesive strength, be beneficial to the transmission of load, be not easy to cause the collapse of self, further improved structural strength.Wherein, interior steel pipe 1 and outer steel pipe 2 are continuous sheet steel pipe, can reduce cost of manufacture, and have enough structural strengths.
In order further to improve structural strength, outer steel pipe 2 and interior steel pipe 1 are conical shell, the power distribution rod that the embodiment of the present invention provides is so actually cone-shaped rod body, one end that its area is large is used as bottom, one end that its area is less is used as top, contact area is large, and ground connection is firm, and pyramidal structure is the most stable.
Wherein, on outer steel pipe 2, be provided with hollow hole 21, in hollow hole 21, be filled with concrete 4, be specially when making, fill concrete 4 between inside steel pipe 2 and outer steel pipe 1, concrete 4 also can flow in hollow hole 21 so, thereby strengthened the fixedly contact area of concrete 4 with outer steel pipe 2, concrete 4 and outer steel pipe 2 are combined more closely, thereby there is stronger pressurized and anti-pressure ability, and the power distribution rod that is arranged so that of hollow hole 21 has larger deformability and larger energy absorption capability, has improved structural strength.Concrete, hollow hole 21 is circular hole, and spaced set on steel pipe 2, is more balanced outside so when stressed, can not affect stressed distribution, simultaneously, the gross area of hollow hole 21 be not more than outer steel pipe 2 the outside gross area 1/5th, working (finishing) area is less, economic performance is good, and speed during construction, concrete need not be filled the too much time.
Wherein, the outside of outer steel pipe 2 is also coated with PET fibrage 3, the English full name of PET is Polyethylene Terephthalate, Chinese is PETG, the fiber of PET fibrage 3 contains thermoplastic polyester, has good toughness, stretching, impact strength, abrasion resistance, electrical insulating property, ductility is very good.Have that toughness is good, quality is light simultaneously, the advantage such as airtight, acid and alkali-resistance.PET material is the reconstituted product that the plastic products such as waste drinking bottles are recycled, environmental protection.Conventionally, PET fiber cost is carbon fibre material 1/5th, is 1/3rd of aramid fiber material, and has better energy-absorbing efficiency than traditional glass fiber, carbon fiber, aramid fiber cloth material of adding.Thereby can avoid using in prior art in the FRP material problem that brittle fracture destroys under reciprocating load, meanwhile, improved corrosion resistance and had certain effect of contraction.
And when making, PET fibrage 3 can first be coated on the outside of outer steel pipe 2, when fill concrete, can prevent that concrete 4 from flowing out from hollow hole 21, avoids causing construction pollution so.
Meanwhile, PET fibrage 3 can also be coated on the two ends of outer steel pipe 2, and by seamless whole being coated of whole power distribution rod, decay resistance is better.Concrete, the material of PET fibrage 3 be PET fiber or PET cloth all can, PET fibrage 3 is pasted and is wrapped on outer steel pipe 2 by epoxy resin, epoxy resin is applicable to PET fibrage 3 and outer steel pipe 2 to be bonded together very much, adhesion strength is higher, difficult drop-off.Epoxy resin can be low-elasticity-modulus epoxy resin, connects better, can adapt to worse environment for use.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a power distribution rod, is characterized in that, comprises outer steel pipe and interior steel pipe, between described outer steel pipe and described interior steel pipe, is filled with concrete.
2. power distribution rod according to claim 1, is characterized in that, described outer steel pipe and described interior steel pipe are conical shell.
3. power distribution rod according to claim 1, is characterized in that, on described outer steel pipe, is provided with hollow hole, is filled with described concrete in described hollow hole.
4. power distribution rod according to claim 3, is characterized in that, described hollow hole is circular hole, and is set in qually spaced on described outer steel pipe.
5. according to the power distribution rod described in claim 3 or 4, it is characterized in that, the gross area of described hollow hole be not more than described outer steel pipe the outside gross area 1/5th.
6. power distribution rod according to claim 1, is characterized in that, the outside of described outer steel pipe is also coated with PET fibrage.
7. power distribution rod according to claim 6, is characterized in that, described PET fibrage is also coated on the two ends of described outer steel pipe.
8. power distribution rod according to claim 6, is characterized in that, the fibrolaminar material of described PET is PET fiber or PET cloth, and described PET fibrage is pasted and is wrapped on described outer steel pipe by epoxy resin.
9. power distribution rod according to claim 6, is characterized in that, described epoxy resin is low-elasticity-modulus epoxy resin.
10. power distribution rod according to claim 6, is characterized in that, described interior steel pipe and described outer steel pipe are continuous sheet steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310631780.5A CN103615143B (en) | 2013-11-29 | 2013-11-29 | A kind of power distribution rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310631780.5A CN103615143B (en) | 2013-11-29 | 2013-11-29 | A kind of power distribution rod |
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| Publication Number | Publication Date |
|---|---|
| CN103615143A true CN103615143A (en) | 2014-03-05 |
| CN103615143B CN103615143B (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310631780.5A Active CN103615143B (en) | 2013-11-29 | 2013-11-29 | A kind of power distribution rod |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159048A (en) * | 2019-06-18 | 2019-08-23 | 国网上海市电力公司 | A kind of complex pole tower for single pole power distribution station |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08296345A (en) * | 1995-04-25 | 1996-11-12 | Takayoshi Ishii | Construction method of telegraph pole in pavement and reinforcing method for earthquake resistance of existing telegraph pole therein |
| CN2326676Y (en) * | 1997-11-04 | 1999-06-30 | 南通供电局设计室 | Combined annular reinforced concrete conic pole |
| CN200961373Y (en) * | 2006-09-04 | 2007-10-17 | 蒋大建 | Composite reinforced hollow electric pole |
| CN202064678U (en) * | 2010-11-18 | 2011-12-07 | 常熟风范电力设备股份有限公司 | Novel electric pole |
| CN102650175A (en) * | 2012-04-16 | 2012-08-29 | 浙江省电力设计院 | Hollow sandwich steel pipe concrete pole for power transmission line |
-
2013
- 2013-11-29 CN CN201310631780.5A patent/CN103615143B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08296345A (en) * | 1995-04-25 | 1996-11-12 | Takayoshi Ishii | Construction method of telegraph pole in pavement and reinforcing method for earthquake resistance of existing telegraph pole therein |
| CN2326676Y (en) * | 1997-11-04 | 1999-06-30 | 南通供电局设计室 | Combined annular reinforced concrete conic pole |
| CN200961373Y (en) * | 2006-09-04 | 2007-10-17 | 蒋大建 | Composite reinforced hollow electric pole |
| CN202064678U (en) * | 2010-11-18 | 2011-12-07 | 常熟风范电力设备股份有限公司 | Novel electric pole |
| CN102650175A (en) * | 2012-04-16 | 2012-08-29 | 浙江省电力设计院 | Hollow sandwich steel pipe concrete pole for power transmission line |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159048A (en) * | 2019-06-18 | 2019-08-23 | 国网上海市电力公司 | A kind of complex pole tower for single pole power distribution station |
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| Publication number | Publication date |
|---|---|
| CN103615143B (en) | 2016-03-30 |
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