CN205153671U - PC rod iron pole - Google Patents
PC rod iron pole Download PDFInfo
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- CN205153671U CN205153671U CN201520614623.8U CN201520614623U CN205153671U CN 205153671 U CN205153671 U CN 205153671U CN 201520614623 U CN201520614623 U CN 201520614623U CN 205153671 U CN205153671 U CN 205153671U
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- rod
- concrete body
- rod iron
- thread steel
- electric pole
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Abstract
The utility model belongs to the technical field of transmission line, a PC rod iron pole is proposed, including the concrete body of rod with set up the strengthening rib in the concrete body of rod, the strengthening rib includes muscle from the outer outer steel ring that sets gradually in to, vertical reinforcement, the spiral in, the vertical reinforcement includes the PC rod iron and the screw -thread steel of interval arrangement, the welding of PC rod iron on outer steel ring and with the spiral in the muscle welding, the inner circle circular arrangement of outer steel ring has sunkenly, the screw -thread steel welding in sunken just with the spiral in the muscle weld, the PC rod iron is the wave, the middle part of the concrete body of rod is provided with the bleeder vent. The utility model has the advantages of concrete body of rod structural strength is high, compact structure, and reasonable in design prevents that the lobe is effectual.
Description
Technical field
The utility model belongs to transmission line of electricity technical field, relates to a kind of PC rod iron electric pole, particularly a kind of PC rod iron electric pole of anti-lobe.
Background technology
In daily life with in producing, concurrent is seen everywhere, concurrent has compared with steel work steel tower that floor space is little, maintenance cost, safety factor are high and the plurality of advantages such as cost is low, concurrent is applied very extensive in 220kV and following transmission line of electricity, in part 500kV transmission line of electricity, also have use.
At present, China's concurrent product divides three major types: prestressed concrete electric pole, non-prestressed concrete electric pole and partially prestressed concrete electric pole.Prestressed concrete electric pole is owing to limiting by sectional reinforcement and technique, and its section turn moment is less, is I level, J level to the maximum, is more and more not suitable for China's power construction demand with conventional rod-type 190*12 rice, 190*15 rice bar section turn moment.But not its section turn moment of prestressed concrete electric pole is comparatively large, but in transport, install and easily produce circumferential crack in the middle of using, decrease product application life.Although the partially prestressed concrete electric pole of prior art solves the shortcoming of above-mentioned two series products, its bearing capacity also has certain limitation.
Along with the economic develop rapidly of China, power consumption surges, the continuous overstriking of wire diameter, in order to economize on resources, an electric pole is had to hang double loop or multi-loop line, increasing to the requirement for bearing capacity of electric pole, existing electric pole specifications and models are difficult to adapt to, and the generation probability of various electric pole crackle is all very high.Electric pole crackle causes electric pole major rupture or electric power accident " symptom of hiding ", and its potential safety hazard can not be despised.The types of fractures of concurrent has a variety of, as shallow table crack, hoop crack, longitudinal crack, the random crack of the degree of depth etc., wherein longitudinal crack is the main crackle of electric pole, particularly in the circuit that electric pressure is high, the lobe rate of concurrent is also the highest, and its potential hazard is also maximum.Electric pole longitudinal crack major part concentrates on electric pole lower end, and it is corresponding with the main muscle in line bar, the reason producing this phenomenon is that thus circumferential deformation has appearred in the resistivity having exceeded concrete self along the circumference stress of the actual generation of the inner reinforcing bar external portion concrete of electric pole outward flange, thus has occurred the longitudinal crack perpendicular to circumferential deformation.
Utility model content
The utility model proposes a kind of PC rod iron electric pole, solve the bearing capacity of concurrent in prior art little, cracking resistance is poor, easily occurs the problem of longitudinal crack.
The technical solution of the utility model is achieved in that
A kind of PC rod iron electric pole, comprises
The concrete body of rod and the reinforcing rib be arranged in the described concrete body of rod, described reinforcing rib comprises the outer rim, vertical reinforcement, the muscle in spiral that set gradually from outside to inside, described vertical reinforcement comprises spaced PC rod iron and screw-thread steel, described PC rod iron to be welded on described outer rim and to weld with muscle in described spiral, the inner ring circumferential row of described outer rim shows depression, described screw-thread steel to be welded in described depression and to weld with muscle in described spiral, described PC rod iron undulate, the middle part of the described concrete body of rod is provided with air-vent.
As further technical scheme, bottom the described concrete body of rod, be provided with the mounting flange with described vertical reinforced-bar-welding.
As further technical scheme, the degree of depth of described depression is greater than the radius of described screw-thread steel, and the weld length of described depression and described screw-thread steel is greater than 1/3 of described screw-thread steel girth.
As further technical scheme, the corrugated wavelength of described PC rod iron is 2:1 ~ 5:1 with the ratio of wave amplitude.
As further technical scheme, the wavelength of described PC rod iron increases from the upper end of the concrete body of rod gradually to lower end.
As further technical scheme, described screw-thread steel is welded with the short muscle of level, the short muscle of described level is perpendicular to described screw-thread steel, and the length of the short muscle of described level is 1 ~ 2cm, and the same position on described screw-thread steel is welded with orthogonal two short muscle of described level.
As further technical scheme, the diameter of described air-vent is 0.5 ~ 1cm, and from top to bottom tilts from the inner surface of the described concrete body of rod to external surface.
The utility model design principle and beneficial effect are:
Outer rim increases depression, make screw-thread steel and be improved to full weld with outer rim by spot welding, while making the anti-lobe of the concrete body of rod, structural strength is also strengthened, increase PC rod iron undulate the circumferential deformation that the peripheral concrete of vertical reinforcement to the concrete body of rod adds is disperseed, thus prevent the generation of concrete body of rod lobe further, useful regulating action is played in the generation of air-vent to lobe simultaneously, the short muscle of level has further restriction to the circumferential deformation producing lobe, therefore can to solve the bearing capacity of concurrent in prior art little for the utility model, cracking resistance is poor, easily there is the problem of longitudinal crack, and it is high to have concrete frame body structure intensity, compact conformation, reasonable in design, the advantage that anti-lobe is effective.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the utility model cross-sectional view;
Fig. 2 is reinforcing rib structure schematic diagram in the utility model;
Fig. 3 is reinforcing rib plan structure schematic diagram in the utility model;
In figure: the 1-concrete body of rod, 11-air-vent, 12-mounting flange, 2-reinforcing rib, 21-outer rim, 211-caves in, 22-vertical reinforcement, 221-PC rod iron, 222-screw-thread steel, muscle in 23-spiral, the short muscle of 24-level
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in FIG. 1 to 3, a kind of PC rod iron electric pole that the utility model proposes, comprising:
The concrete body of rod 1 and the reinforcing rib 2 be arranged in the concrete body of rod 1, reinforcing rib 2 comprises the outer rim 21, vertical reinforcement 22, the muscle 23 in spiral that set gradually from outside to inside, vertical reinforcement 22 comprises spaced PC rod iron 221 and screw-thread steel 222, PC rod iron 221 to be welded on outer rim 21 and to weld with muscle in spiral 23, the inner ring circumferential row of outer rim 21 shows depression 211, screw-thread steel 222 to be welded in depression 211 and to weld with muscle in spiral 23, PC rod iron 221 undulate, the middle part of the concrete body of rod 1 is provided with air-vent 11.
The effect of the depression 211 on outer rim 21 be increase outer rim 21 and the concrete body of rod 1 contact area thus reduce the effect pressure of gravity to outer rim 21 of the concrete body of rod 1, increase the adhesive power between outer rim 21 and the concrete body of rod 1 simultaneously, and the depression 211 on outer rim 21 can also increase the bonding area of outer rim 21 and screw-thread steel 222, thus increase structural strength further, thus there is the advantage that concrete frame body structure intensity is high.
Outer rim 21 increases depression 211, PC rod iron 221 undulate can reduce the appearance of the concrete body of rod 1 lobe phenomenon jointly, because the lobe of concurrent all appears at the corresponding place of concurrent vertical reinforcement 22, circumference stress along the actual generation of the inner reinforcing bar external portion concrete of electric pole outward flange is all born by the outer concrete topping of the concrete body of rod 1, strength grade is that its tensile strength of concrete of C30 is far smaller than its compressive strength, the resistivity that circumference stress exceedes the concrete body of rod 1 self just there will be circumferential deformation, thus the longitudinal crack that there will be perpendicular to circumferential deformation.
The circumferential deformation of the concrete body of rod 1 is that many factors causes, and has the factors such as the circumferential deformation under the distortion of dry-shrinkage deformed, humidity, carbonization distortion and longitudinal loading.PC rod iron 221 undulate can reduce the dry-shrinkage deformed of the concrete body of rod 1 and carbonization distortion, because, when the concrete body of rod 1 is due to drying shrinkage carbonization factor generation shrinkage strain, vertical reinforcement 22 does not produce respective change, at this moment vertical reinforcement 22 and the concrete body of rod 1 just occur that relative position moves, form the peripheral concrete directed forces of vertical reinforcement 22 pairs of concrete bodies of rod 1, PC rod iron 221 is after wave, this directed forces will be disperseed, thus greatly reduce the circumferential deformation of the concrete body of rod 1, thus reduce the lobe phenomenon of the concrete body of rod 1, and there is the effective advantage of anti-lobe.
Outer rim 21 increases depression 211 can reduce the concrete body of rod 1 longitudinal loading under circumferential deformation, because after outer rim 21 increasing depression 211, lifting surface area on vertical direction will increase to a certain degree, thus reduces longitudinal loading to the active force of the concrete body of rod 1; PC rod iron 221 undulate also can reduce the circumferential deformation under the concrete body of rod 1 longitudinal loading, because vertical reinforcement 22 produces flexural deformation under longitudinal load effect, it can be subject to the obstruction of outer rim 21 when bending laterally, residual stress will pass to the peripheral concrete of the concrete body of rod 1, if will to residual stress by peptizaiton after PC rod iron 221 undulate, thus reduce the circumferential deformation of the concrete body of rod 1, thus reduce the lobe phenomenon of the concrete body of rod 1, and there is compact conformation, reasonable in design, the advantage that anti-lobe is effective.
The concrete body of rod 1 increases the humidity distortion that air-vent 11 can reduce the concrete body of rod 1, due to the humidity of external environment, on the impact of the temperature of the annular concrete body of rod 1 cavity, little and cavity also obtains the supply of underground moisture content, thus be usually outside doing and interior humidity is in metastable state, if things go on like this, the circumferential deformation of the concrete body of rod 1 will be caused, after ventilating, just the circumferential deformation that inside and outside the annular concrete body of rod 1, humidity difference causes can be greatly reduced, thus reduce the lobe phenomenon of the concrete body of rod 1, and there is the effective advantage of anti-lobe.
Further, the mounting flange 12 welded with vertical reinforcement 22 is provided with bottom the concrete body of rod 1.
Further, the degree of depth of depression 211 is greater than the radius of screw-thread steel 222, and depression 211 is greater than 1/3 of screw-thread steel 222 girth with the weld length of screw-thread steel 222.The spot welding that is welded as between outer rim 21 in the past and vertical reinforcement 22 is improved to full weld by this kind of improvement, thus further increases the moment of flexure of the concrete body of rod 1.
Further, the wavelength of corrugated PC rod iron 221 is 2:1 ~ 5:1 with the ratio of wave amplitude.
Further, the wavelength of PC rod iron 221 increases from the upper end of the concrete body of rod 1 gradually to lower end.Keep wavelength constant with the ratio of wave amplitude while wavelength increases.
Further, the short muscle 24 of level that screw-thread steel 222 is welded with, the short muscle 24 of level is perpendicular to screw-thread steel 222, and the length of the short muscle 24 of level is 1 ~ 2cm, and the same position on screw-thread steel 222 is welded with the short muscle 24 of orthogonal two levels.The short muscle 24 of level can reduce the circumferential deformation under the concrete body of rod 1 longitudinal loading further, thus reduces the lobe phenomenon of the concrete body of rod 1 further.
Further, the diameter of air-vent 11 is 0.5 ~ 1cm, and from top to bottom tilts from the inner surface of the concrete body of rod 1 to external surface.The increase of the air-vent 11 of this kind of size does not affect the laying of reinforcing rib 2 in the concrete body of rod 1, therefore can not impact the mechanics parameter of the concrete body of rod 1, be designed to air-vent 11 from top to bottom tilt to external surface from the inner surface of the concrete body of rod 1, thus avoid the rainwater that causes of raining and drench inside into the annular concrete body of rod 1.
The utility model outer rim 21 increases depression 211, screw-thread steel and 222 and outer rim 21 is made to be improved to full weld by spot welding, while making the anti-lobe of the concrete body of rod 1, structural strength is also strengthened, increase PC rod iron 221 undulate the circumferential deformation that the peripheral concrete of vertical reinforcement 22 pairs of concrete bodies of rod 1 adds is disperseed, thus prevent the generation of the concrete body of rod 1 lobe further, useful regulating action is played in the generation of air-vent 11 pairs of lobes simultaneously, the short muscle of level 24 has further restriction to the circumferential deformation producing lobe, therefore can to solve concurrent bearing capacity in prior art little for the utility model, cracking resistance is poor, easily there is the problem of longitudinal crack, and it is high to have concrete frame body structure intensity, compact conformation, reasonable in design, the advantage that anti-lobe is effective.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (7)
1. a PC rod iron electric pole, comprise the concrete body of rod (1) and be arranged on the reinforcing rib (2) in the described concrete body of rod (1), described reinforcing rib (2) comprises the outer rim (21) set gradually from outside to inside, vertical reinforcement (22), muscle (23) in spiral, described vertical reinforcement (22) comprises spaced PC rod iron (221) and screw-thread steel (222), described PC rod iron (221) is welded on described outer rim (21) and goes up and weld with muscle (23) in described spiral, it is characterized in that: the inner ring circumferential row of described outer rim (21) shows depression (211), described screw-thread steel (222) to be welded in described depression (211) and to weld with muscle (23) in described spiral, described PC rod iron (221) undulate, the middle part of the described concrete body of rod (1) is provided with air-vent (11).
2. a kind of PC rod iron electric pole according to claim 1, is characterized in that: the described concrete body of rod (1) bottom is provided with the mounting flange (12) welded with described vertical reinforcement (22).
3. a kind of PC rod iron electric pole according to claim 1, it is characterized in that: the degree of depth of described depression (211) is greater than the radius of described screw-thread steel (222), described depression (211) is greater than 1/3 of described screw-thread steel (222) girth with the weld length of described screw-thread steel (222).
4. a kind of PC rod iron electric pole according to claim 1, is characterized in that: the corrugated described wavelength of PC rod iron (221) is 2:1 ~ 5:1 with the ratio of wave amplitude.
5. a kind of PC rod iron electric pole according to claim 1 or 4, is characterized in that: the wavelength of described PC rod iron (221) increases from the upper end of the concrete body of rod (1) gradually to lower end.
6. a kind of PC rod iron electric pole according to claim 1, it is characterized in that: described screw-thread steel (222) is welded with the short muscle of level (24), the short muscle of described level (24) is perpendicular to described screw-thread steel (222), the length of the short muscle of described level (24) is 1 ~ 2cm, and the same position on described screw-thread steel (222) is welded with orthogonal two short muscle of described level (24).
7. a kind of PC rod iron electric pole according to claim 1, is characterized in that: the diameter of described air-vent (11) is 0.5 ~ 1cm, and from top to bottom tilts to external surface from the inner surface of the described concrete body of rod (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520614623.8U CN205153671U (en) | 2015-08-15 | 2015-08-15 | PC rod iron pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520614623.8U CN205153671U (en) | 2015-08-15 | 2015-08-15 | PC rod iron pole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205153671U true CN205153671U (en) | 2016-04-13 |
Family
ID=55689383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520614623.8U Expired - Fee Related CN205153671U (en) | 2015-08-15 | 2015-08-15 | PC rod iron pole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205153671U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110778202A (en) * | 2019-11-08 | 2020-02-11 | 山东惠众财金新材料科技有限公司 | PC steel bar electric pole |
| CN111691736A (en) * | 2020-05-27 | 2020-09-22 | 浙江楠鑫电力器材股份有限公司 | Telegraph pole and production method thereof |
-
2015
- 2015-08-15 CN CN201520614623.8U patent/CN205153671U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110778202A (en) * | 2019-11-08 | 2020-02-11 | 山东惠众财金新材料科技有限公司 | PC steel bar electric pole |
| CN111691736A (en) * | 2020-05-27 | 2020-09-22 | 浙江楠鑫电力器材股份有限公司 | Telegraph pole and production method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20160815 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |