CN101906897A - Concrete electric pole with high strength and large bending moment - Google Patents
Concrete electric pole with high strength and large bending moment Download PDFInfo
- Publication number
- CN101906897A CN101906897A CN 201010247233 CN201010247233A CN101906897A CN 101906897 A CN101906897 A CN 101906897A CN 201010247233 CN201010247233 CN 201010247233 CN 201010247233 A CN201010247233 A CN 201010247233A CN 101906897 A CN101906897 A CN 101906897A
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- Prior art keywords
- concrete
- electric pole
- bending moment
- high strength
- large bending
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- 239000004567 concrete Substances 0.000 title claims abstract description 39
- 238000005452 bending Methods 0.000 title claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 claims abstract description 4
- 230000002787 reinforcement Effects 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000004574 high-performance concrete Substances 0.000 claims description 5
- 229910000754 Wrought iron Inorganic materials 0.000 claims description 4
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 239000004568 cement Substances 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- 235000013312 flour Nutrition 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 238000005336 cracking Methods 0.000 abstract description 6
- 239000011150 reinforced concrete Substances 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 229910000975 Carbon steel Inorganic materials 0.000 abstract 1
- 239000010962 carbon steel Substances 0.000 abstract 1
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000007689 inspection Methods 0.000 abstract 1
- 241000209094 Oryza Species 0.000 description 6
- 235000007164 Oryza sativa Nutrition 0.000 description 6
- 235000009566 rice Nutrition 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 239000011398 Portland cement Substances 0.000 description 2
- 230000001976 improved effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
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- Reinforcement Elements For Buildings (AREA)
Abstract
The invention relates to the technical field of reinforced concrete, in particular to a concrete electric pole with high strength and large bending moment. The concrete electric pole is mainly made of concrete and reinforced bars, wherein the concrete has high performance and the strength of C70 to C85 (C represents the strength of the concrete); the reinforced bars are configured by part of prestressed reinforced bars; the prestressed reinforced bars adopt high-strength carbon steel wires or steel bars with the tensile strength value of 1110N/mm<2> (Newton/square millimeter); non-prestressed reinforced bars adopt new three-grade steel and have the tensile strength value of 360N/mm<2> (Newton/square millimeter); the root diameter of the electric pole is designed to be 670 to 870 mm (millimeter); the maximum cracking inspection bending moment reaches 800 to 1000kN.m (kilonewton. meter); and the tension reaches 460 to 520t (ton). The purposes of high strength, large pole type, small root diameter and large bending moment are achieved; and the functions of achieving low carbon environmental protection, reducing the manufacturing cost and the land occupation area, prolonging the service life and enhancing the performance ratio are obtained.
Description
Technical field
The present invention relates to the reinforced concrete technology field, particularly a kind of concrete electric pole with high strength and large bending moment.
Background technology
At present, known annular concrete electric pole all is to be made by ordinary concrete and general steel, and ubiquity, and the bar type is little, and intensity is low, and supporting capacity is low, generally can only set up the mesolow circuit, and efficiency ratio is low.At " annular concrete electric pole " (GB/T4623-2006) in the standard, the maximum cracking check of reinforced concrete pole moment of flexure be 145.5kN.m (thousand Ns. rice), the maximum cracking check of partially prestressed concrete electric pole moment of flexure be 228.7kN.m (thousand Ns. rice).Development along with society, people are to the progressively raising of environmental requirement, save investment, reducing floor space has become the trend of current power industry development, and that concrete electric pole with high strength and large bending moment has compliance is strong, and floor space is little, and cost is low, advantages such as the suitable mesohigh construction of line and long service life come into one's own, be from now on one period the power circuit industry development direction.
Summary of the invention
Technical problem to be solved by this invention: the present invention is exactly problems such as the bar type that exists at prior art is little, and intensity is low, and supporting capacity is low, generally can only set up the mesolow circuit, and efficiency ratio is low, and a kind of concrete electric pole with high strength and large bending moment is provided.
Technical scheme of the present invention: a kind of concrete electric pole with high strength and large bending moment is mainly formed by concrete and reinforcement fabrication.Concrete adopts high performance concrete, and its batching mainly contains high grade Portland cement, sand, stone, water, water reducing agent, fines etc., and its intensity rank is C70-C85 (C represents concrete strength).Reinforcing bar adopts partial prestressing arrangement of reinforcement pattern to be configured, prestressed reinforcement adopts high strength carbon element steel wire or rod iron, its tensile strength values is 1110N/mm2 (ox/square millimeter), nonprestressed reinforcement adopts new grade III steel, its tensile strength values is 360N/mm2 (ox/square millimeter), and the root of concurrent directly is designed to 670-870mm (millimeter).
Beneficial effect of the present invention: directly design by the root of employing new technology, new material makes the strong concrete electric pole and to reach 670-870mm (millimeter), maximum cracking check moment of flexure reach 800-1000kN.m (thousand Ns. rice), stretching force reaches 460-520t (ton), reached high strength, big bar type, rootlet footpath, big moment of flexure, played low-carbon environment-friendly, reduce cost, reduce floor space, increase application life, improved effects such as efficiency ratio.
The specific embodiment
A kind of concrete electric pole with high strength and large bending moment of the present invention is mainly formed by concrete and reinforcement fabrication.Concrete adopts high performance concrete, its intensity rank is C80 (C represents concrete strength), match ratio is a cement: sand: stone: water=1: 1.37: 2.4: 0.2, other adds water reducing agent 1.5%, fines 0.08%, cement in the match ratio is the high grade Portland cement, and fines is a silica flour.
Other concrete mix contrast of different intensity scale is as follows:
| Concrete strength | C40 | C50 | C80 |
| Match ratio | 1∶1.66∶2.85∶0.29 | 1∶1.56∶2.72∶0.28 | 1∶1.37∶2.4∶0.2 |
| Water reducing agent | 0.5％ | 0.5％ | 1.5％ |
| Fines | 0.08％ |
Reinforcing bar adopts partial prestressing arrangement of reinforcement pattern to be configured, prestressed reinforcement adopts high strength carbon element steel wire or rod iron, its tensile strength values is 1110N/mm2 (ox/square millimeter), and nonprestressed reinforcement adopts new grade III steel, and its tensile strength values is 360N/mm2 (ox/square millimeter).
The reinforcing bar tensile strength values contrast of different stage is as follows:
[annotate: (GB50010-2002) standard, N/mm2 represent ox/square millimeter with reference to " Code for design of concrete structures "]
The root of strong concrete electric pole directly is designed to 790mm (millimeter), and the tip is directly decided on length, maximum cracking check moment of flexure reach 900kN.m (thousand Ns. rice), stretching force reaches 460t (ton).
Reinforced concrete pole and the contrast of strong concrete electric pole cracking check moment of flexure are as follows:
[annotate: (GB/T4623-2006) on behalf of diameter, mm, standard, φ represent millimeter, m to represent rice, kN.m to represent thousand Ns with reference to " annular concrete electric pole ". and rice, C represent concrete strength]
The present invention makes reinforced concrete pole reach high strength, big bar type, rootlet footpath, big moment of flexure by adopting above new technology, new material, has played low-carbon environment-friendly, reduces cost, reduces floor space, increases application life, has improved effects such as efficiency ratio.
Claims (6)
1. concrete electric pole with high strength and large bending moment, mainly form by concrete and reinforcement fabrication, it is characterized in that: concrete adopts high performance concrete, reinforcing bar adopts partial prestressing arrangement of reinforcement pattern to be configured, prestressed reinforcement adopts high strength carbon element steel wire or rod iron, nonprestressed reinforcement adopts new grade III steel, and the root of electric pole directly is 670-870mm (millimeter).
2. a kind of concrete electric pole with high strength and large bending moment according to claim 1, the intensity rank that it is characterized in that high performance concrete are C70-C85 (C represents concrete strength).
3. a kind of concrete electric pole with high strength and large bending moment according to claim 1 is characterized in that the high performance concrete match ratio is a cement: sand: stone: water=1: 1.37: 2.4: 0.2, and other adds water reducing agent 1.5%, fines 0.08%.
4. a kind of concrete electric pole with high strength and large bending moment according to claim 1 is characterized in that high strength carbon element steel wire or rod iron tensile strength values are 1110N/mm2 (ox/square millimeter).
5. a kind of concrete electric pole with high strength and large bending moment according to claim 1 is characterized in that new grade III steel tensile strength values is 360N/mm2 (ox/square millimeter).
6. a kind of concrete electric pole with high strength and large bending moment according to claim 3 is characterized in that the fines in the concrete mix is a silica flour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010247233 CN101906897A (en) | 2010-08-03 | 2010-08-03 | Concrete electric pole with high strength and large bending moment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010247233 CN101906897A (en) | 2010-08-03 | 2010-08-03 | Concrete electric pole with high strength and large bending moment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101906897A true CN101906897A (en) | 2010-12-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010247233 Pending CN101906897A (en) | 2010-08-03 | 2010-08-03 | Concrete electric pole with high strength and large bending moment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101906897A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6185888B1 (en) * | 1998-08-06 | 2001-02-13 | Charles T. Wasson | Post |
| CN101029540A (en) * | 2007-03-09 | 2007-09-05 | 罗定市水泥制品有限公司 | Prestressed concrete electrical pole and its production |
| CN200952256Y (en) * | 2006-09-29 | 2007-09-26 | 上海电力线路器材有限公司 | Large-bending moment high-strength concrete electrical pole |
| US20090313912A1 (en) * | 2008-06-20 | 2009-12-24 | Robert Edward Perry | Concrete post with attachment rail |
| CN101654963A (en) * | 2008-08-21 | 2010-02-24 | 陈子成 | Annular prestressed concrete electric pole and production process thereof |
| CN101718153A (en) * | 2009-08-18 | 2010-06-02 | 四川省富侨工业有限公司 | Partially prestressed concrete electric pole and preparation method thereof |
-
2010
- 2010-08-03 CN CN 201010247233 patent/CN101906897A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6185888B1 (en) * | 1998-08-06 | 2001-02-13 | Charles T. Wasson | Post |
| CN200952256Y (en) * | 2006-09-29 | 2007-09-26 | 上海电力线路器材有限公司 | Large-bending moment high-strength concrete electrical pole |
| CN101029540A (en) * | 2007-03-09 | 2007-09-05 | 罗定市水泥制品有限公司 | Prestressed concrete electrical pole and its production |
| US20090313912A1 (en) * | 2008-06-20 | 2009-12-24 | Robert Edward Perry | Concrete post with attachment rail |
| CN101654963A (en) * | 2008-08-21 | 2010-02-24 | 陈子成 | Annular prestressed concrete electric pole and production process thereof |
| CN101718153A (en) * | 2009-08-18 | 2010-06-02 | 四川省富侨工业有限公司 | Partially prestressed concrete electric pole and preparation method thereof |
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20101208 |