CN200952256Y - Large-bending moment high-strength concrete electrical pole - Google Patents
Large-bending moment high-strength concrete electrical pole Download PDFInfo
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- CN200952256Y CN200952256Y CN 200620046486 CN200620046486U CN200952256Y CN 200952256 Y CN200952256 Y CN 200952256Y CN 200620046486 CN200620046486 CN 200620046486 CN 200620046486 U CN200620046486 U CN 200620046486U CN 200952256 Y CN200952256 Y CN 200952256Y
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- electric pole
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- prestressed
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Abstract
A concrete pole with big bending moment and high strength comprises a plurality of concrete poles by welding. The taper is 1:75, the prestressed concrete pole comprises a prestressed main steel bar, a non-prestressed steel bar, an inner steel hoop, and a spiral bar, the prestressed main steel bar adopts a high strength steel wire of phi 9 <HT> mm, the non-prestressed steel bar is adopted with a hot rolled reinforced steel of grade II, and the reinforcement between the prestreesed main steel bar and non-prestressed steel bar are adopted with the method of spacing arrangement. The utility model can greatly improve the cracking resistance and tensile strength of the pole. The pole is manufactured with sections, therefore being easy to be hoisted by the construction unit. The pole can be urban 10 kv, 35 kv, and multi lines on the same pole, the guys of single loop of 110 kv and double loop linear pole can't be set, the guys of double pole plus bridge frame of 220 kv can't be set, and the fork girder is not provided, thereby reducing the occupied area for the guys.
Description
Technical field
The utility model relates to a kind of concurrent, is specifically related to a kind of big moment of flexure strong concrete electric pole.
Background technology
The electric pole that is used for aerial cable line at present generally has concurrent and iron tower, and wherein concurrent generally is used for built on stilts 10kV nude cable and insulated cable, and iron tower generally is used for aerial high-voltage cable or extra-high-tension cable.Concurrent is subjected to the influence of concrete strength, generally has only tens meters long.Along with the continuous expansion of city size, some 110kV, 220kV transformer station begin to be built in the urban district, therefore the defeated modified line road of 110kV, 220kV need be transported to these transformer stations by the sky, city.Owing to be subjected to the restriction of concrete electric pole length, what be used for the built on stilts 220kV general use in defeated modified line road at present is iron tower.
In addition, in order to reduce the quantity of electric pole, bring into use multi-thread pole technology altogether to set up power transmission and transformation line for 10kV, 35kV, also the height to stringing has proposed requirement.
Have problems and use iron tower to set up the defeated modified line road of 110kV, 220kV in the city, big as floor space, construction and installation difficulty, maintenance cost are high.Therefore, begin on some power transmission and transformation lines to consider to use concurrent to replace iron tower in order to set up the defeated modified line road of 110kV, 220kV, so the quality of concurrent is had higher requirement.
Be exactly in addition present concurrent because the performance of its intensity and bending resistance square is lower, when setting up power transmission and transformation line, need beat backguy.And in the city populous location, seeking the position play backguy is a cumbersome thing.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of big moment of flexure high-intensity concurrent, to satisfy city 10kV, 35kV and the multi-thread needs of bar, 110kV single loop and double loop, the 220kV construction of line altogether.
Technical problem to be solved in the utility model can be achieved through the following technical solutions:
A kind of big moment of flexure strong concrete electric pole is welded by the multistage concurrent, and its tapering is 1: 75, and the footpath is 270mm slightly.The mode of all welding with steel plate ring between each section electric pole connects.
It is characterized in that:
1, improve steel strength: stirrup, spiral bar constituted in this prestressed concrete electric pole was reached by prestressing force main reinforcement and nonprestressed reinforcement, and described prestressing force main reinforcement adopts ∮ 9
HTMm high tensile steel wire, nonprestressed reinforcement adopt II level hot rolling ribbed steel bar, adopt the mode of being spaced to carry out arrangement of reinforcement between described prestressing force main reinforcement and the nonprestressed reinforcement.In the utility model, the spacing between the interior stirrup is 500mm, and adopts two hoop forms.
2, the form of the composition: described big moment of flexure strong concrete electric pole generally constitutes by three sections or four sections, and wherein three of general electric pole sections is that 6m, 8m and 10m constitute the 24m concurrent; The 27m concurrent increases by one section 3m bar on this basis; The 30m concurrent then increases by one section 6m bar again on the basis of three sections general electric poles.
3, improve concrete proportioning: improve cement grade, mix Admixture (volume by best cement consumption mixes high efficiency water reducing agent).Thereby improve concrete strength and improve the multinomial physical property of concrete.
Owing to adopted above technical scheme, can improve the crack resistance and the tensile strength of electric pole greatly.Owing to be the electric pole that segmentation is made, therefore be convenient to the lifting of unit in charge of construction.Wherein the standard moment of flexure of 24m electric pole is 240KN.m, and the standard moment of flexure of 27m electric pole is 270KN.m, and the standard moment of flexure of 30m electric pole is 300KN.m.
Big moment of flexure strong concrete electric pole of the present utility model, can do city 10kv, 35kv and multi-thread bar altogether, 110kv single loop and double loop straight line pole can not played backguy, and the two bars of 220kv circuit add crane span structure and can not play backguy, do not establish the fork beam, thereby reduce the area that takies because of backguy.
Description of drawings
Further specify the utility model below in conjunction with the drawings and specific embodiments.
Fig. 1 is the structural representation of the big moment of flexure strong concrete of the utility model 24m electric pole.
Fig. 2 is the structural representation of the big moment of flexure strong concrete of the utility model 27m electric pole.
Fig. 3 is the structural representation of the big moment of flexure strong concrete of the utility model 30m electric pole.
Fig. 4 is the structural representation that steel plate ring of the present utility model is connected with electric pole.
Fig. 5 is the arrangement of reinforcement schematic diagram of big moment of flexure strong concrete electric pole of the present utility model.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with the specific embodiment, further set forth the utility model.
Referring to the connected mode of Fig. 1,2,3 large bending moment electrical poles is to be welded by three sections or four section concrete electric poles, and its tapering is 1: 75, and the footpath is 270mm slightly.The mode of all welding with steel plate ring 4 between each section electric pole connects, and wherein three of general electric pole sections is that 6m, 8m and 10m constitute the 24m concurrent; The 27m concurrent increases by one section 3m bar on this basis; The 30m concurrent then increases by one section 6m bar again on the basis of three sections general electric poles.
Referring to Fig. 4 is the structural representation that steel plate ring 4 is connected with electric pole.
Referring to Fig. 5 is the arrangement of reinforcement schematic diagram of big moment of flexure strong concrete electric pole.Reaching interior stirrup 43 by prestressing force main reinforcement 41 and nonprestressed reinforcement 42 constitutes with spiral bar 44.Interior stirrup 43 adopts two hoop forms.
Prestressing force main reinforcement 41 adopts ∮ 9
HTThe mm high tensile steel wire, its tensile strength can reach 1420N/mm
2 Nonprestressed reinforcement 42 adopts II level hot rolling ribbed steel bar, and model is hrb335.Adopt the mode of being spaced to carry out arrangement of reinforcement (referring to Fig. 5) between prestressing force main reinforcement 41 and the nonprestressed reinforcement 42.Interior stirrup 43 and non-prestressing tendon 42 usefulness arc weldings and all two hoop form, spacing is 500mm.Spiral bar 44 is by the reinforcing bar uniform winding electric pole of ∮ 4mm, and spacing is 75mm.Interior stirrup 43 adopts the reinforcing bar of ∮ 6.5mm.
In length is in the electric pole section of 10m, contains 12 of prestressing force main reinforcements, 12 of non-prestressed main reinforcements (wherein 3 2m, 3 4m, 3 6m, 2 8m, 1 9.65m); Length is in the electric pole section of 8m, contains 16 of prestressing force main reinforcements, 32 of non-prestressed main reinforcements (wherein 8 1.25m, 8 2.25m, 8 6.25m, 8 7.25m); Length is in the electric pole section of 6m, contains 18 in prestressing force master muscle, 32 in non-prestressed main muscle (wherein 8 1.25m, 8 2.25m, 8 4.25m, 8 5.25m).
The characteristics of this its tapered rod of electric pole steel design considerations and the requirement of stressed load and moment of flexure are adopted the cramp form with non-prestressing tendon, not only have reasonability, and save steel.
The characteristics of this electric pole: can not only use separately, also can connect use (two sections, three sections, four sections).
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the manual just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1, a kind of big moment of flexure strong concrete electric pole, be welded by the multistage concurrent, its tapering is 1: 75, the footpath is 270mm slightly, the mode of all welding with steel plate ring between each section electric pole connects, it is characterized in that: stirrup constituted in this prestressed concrete electric pole was reached by prestressing force main reinforcement and nonprestressed reinforcement, and described prestressing force main reinforcement adopts ∮ 9
HTMm high tensile steel wire, nonprestressed reinforcement adopt II level hot rolling ribbed steel bar, adopt the mode of being spaced to carry out arrangement of reinforcement between described prestressing force main reinforcement and the nonprestressed reinforcement; Interior stirrup adopts two hoop forms.
2, a kind of big moment of flexure strong concrete electric pole according to claim 1 is characterized in that: the spacing in described two hoops between the stirrup is 500mm; Spiral bar uniform winding electric pole, spacing are 75mm.
3, a kind of big moment of flexure strong concrete electric pole according to claim 1 and 2, it is characterized in that: described big moment of flexure strong concrete electric pole generally constitutes by three sections or four sections; Wherein three of general electric pole sections is that 6m, 8m and 10m constitute the 24m concurrent; The 27m concurrent increases by one section 3m bar on this basis; The 30m concurrent then increases by one section 6m bar again on the basis of three sections general electric poles.
4, a kind of big moment of flexure strong concrete electric pole according to claim 3 is characterized in that: described non-prestressing tendon adopts the cramp form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620046486 CN200952256Y (en) | 2006-09-29 | 2006-09-29 | Large-bending moment high-strength concrete electrical pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620046486 CN200952256Y (en) | 2006-09-29 | 2006-09-29 | Large-bending moment high-strength concrete electrical pole |
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| Publication Number | Publication Date |
|---|---|
| CN200952256Y true CN200952256Y (en) | 2007-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200620046486 Expired - Lifetime CN200952256Y (en) | 2006-09-29 | 2006-09-29 | Large-bending moment high-strength concrete electrical pole |
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| Country | Link |
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| CN (1) | CN200952256Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101824931A (en) * | 2010-03-09 | 2010-09-08 | 上海电力线路器材有限公司 | Annular partially prestressed concrete electric pole |
| CN101906897A (en) * | 2010-08-03 | 2010-12-08 | 河南鼎力杆塔股份有限公司 | Concrete electric pole with high strength and large bending moment |
| CN101915006A (en) * | 2010-08-31 | 2010-12-15 | 上海电力线路器材有限公司 | High-strength electric pole |
| CN102528924A (en) * | 2011-12-27 | 2012-07-04 | 上海电力器材有限公司 | High-strength annular partially prestressed concrete pole and production method thereof |
| CN102966256A (en) * | 2012-10-31 | 2013-03-13 | 中国石油化工股份有限公司 | Manufacturing method of anti-corrosion large-bending moment concrete telegraph pole along sea beach area |
| CN103321351A (en) * | 2013-07-03 | 2013-09-25 | 浙江永达电力实业股份有限公司 | Hooping bar for concrete electric rod framework net |
| CN103541577A (en) * | 2013-10-18 | 2014-01-29 | 六安明诚水泥制品有限责任公司 | Method for fixing electric pole ends without releasing partial prestress |
| CN110965839A (en) * | 2019-12-26 | 2020-04-07 | 国网福建省电力有限公司经济技术研究院 | Mixed reinforced concrete pole and construction method |
-
2006
- 2006-09-29 CN CN 200620046486 patent/CN200952256Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101824931A (en) * | 2010-03-09 | 2010-09-08 | 上海电力线路器材有限公司 | Annular partially prestressed concrete electric pole |
| CN101906897A (en) * | 2010-08-03 | 2010-12-08 | 河南鼎力杆塔股份有限公司 | Concrete electric pole with high strength and large bending moment |
| CN101915006A (en) * | 2010-08-31 | 2010-12-15 | 上海电力线路器材有限公司 | High-strength electric pole |
| CN102528924A (en) * | 2011-12-27 | 2012-07-04 | 上海电力器材有限公司 | High-strength annular partially prestressed concrete pole and production method thereof |
| CN102966256A (en) * | 2012-10-31 | 2013-03-13 | 中国石油化工股份有限公司 | Manufacturing method of anti-corrosion large-bending moment concrete telegraph pole along sea beach area |
| CN103321351A (en) * | 2013-07-03 | 2013-09-25 | 浙江永达电力实业股份有限公司 | Hooping bar for concrete electric rod framework net |
| CN103321351B (en) * | 2013-07-03 | 2015-06-10 | 浙江永达电力实业股份有限公司 | Hooping bar for concrete electric rod framework net |
| CN103541577A (en) * | 2013-10-18 | 2014-01-29 | 六安明诚水泥制品有限责任公司 | Method for fixing electric pole ends without releasing partial prestress |
| CN110965839A (en) * | 2019-12-26 | 2020-04-07 | 国网福建省电力有限公司经济技术研究院 | Mixed reinforced concrete pole and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI QINGONG LINE EQUIPMENT CO., LTD. Free format text: FORMER OWNER: SHANGHAI POWER LINES EQUIPMENT CO., LTD. Effective date: 20110114 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 200235 NO. 41, WUZHONG ROAD, XUHUI DISTRICT, SHANGHAI TO: 201705 NO. 3886, BEIQING HIGHWAY, HUAXIN TOWN, QINGPU DISTRICT, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110114 Address after: 201705, Shanghai, Qingpu District, Huaxin Town, 3886 North Green Road Co-patentee after: Shanghai Electric Power Design Institute Limited Patentee after: Shanghai Qingong Wire Equipment Co., Ltd. Address before: 200235 No. 41, Xuhui District, Shanghai, Wuzhong Road Co-patentee before: Shanghai Electric Power Design Institute Limited Patentee before: Shanghai Power Line Appliances Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070926 |
|
| EXPY | Termination of patent right or utility model |