CN202100022U - Reinforcing device used for longitudinal crack of reinforced concrete pole with annular cross section - Google Patents
Reinforcing device used for longitudinal crack of reinforced concrete pole with annular cross section Download PDFInfo
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- CN202100022U CN202100022U CN2011201910754U CN201120191075U CN202100022U CN 202100022 U CN202100022 U CN 202100022U CN 2011201910754 U CN2011201910754 U CN 2011201910754U CN 201120191075 U CN201120191075 U CN 201120191075U CN 202100022 U CN202100022 U CN 202100022U
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- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 19
- 230000003014 reinforcing effect Effects 0.000 title abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 15
- 239000010959 steel Substances 0.000 description 15
- 239000004567 concrete Substances 0.000 description 12
- 230000032683 aging Effects 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
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- 208000037656 Respiratory Sounds Diseases 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 238000003763 carbonization Methods 0.000 description 4
- 230000035882 stress Effects 0.000 description 4
- 238000005336 cracking Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
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- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
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- 238000005520 cutting process Methods 0.000 description 1
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- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
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Abstract
The utility model discloses a reinforcing device used for a longitudinal crack of a reinforced concrete pole with an annular cross section. The reinforcing device comprises two pairs of rod clamps, each pair of rod clamps is composed by two arc-shaped clamps which are mutually matched with each other, the two arc-shaped clamps are connected through a bolt, and a cylindrical cavity is formed between the two arc-shaped clamps. The reinforcing device can be used in that when the reinforced concrete pole with the annular cross section has longitudinal cracks, two pairs of rod clamps are respectively arranged at the upper part and the lower part of the cracks of a tower body, the bolt which is connected with the arc-shaped clamps is tightly screwed, and radial stress is applied on the crack position of the tower body so as to fix the arc-shaped clamps, thereby preventing the spreading of the cracks and increasing the rigidity and the strength of the rod body structure. Compared with the prior art, the reinforcing device used for the longitudinal crack of the reinforced concrete pole with the annular cross section has the beneficial effects that the value of the maximum stress is decreased when the reinforcing work is completed, meanwhile, the cracks cannot spread, the operation is simple and convenient, the power cut is not needed, and the cost is low.
Description
Technical field
The utility model relates to a kind of ring section reinforced concrete pole longitudinal crack bracing means that is used for.
Background technology
At present, in China's most of areas, most of 110kv (and following) ultra-high-tension power transmission line adopts the part anchor support except that special location, special leap, all adopts steel reinforced concrete pole.The reinforced concrete pole of ultra-high-tension power transmission line mainly is made up of steel concrete mobile jib, steel concrete fork beam or steel fork beam, backguy and cross-arm etc., and the steel concrete mobile jib has isometrical and two kinds of tapers (dialling the tip), and general bar section by 6m or 9m is welded.
China's transmission line of electricity uses reinforced concrete pole, and the history in existing 50～60 years has all accumulated rich experience at aspects such as design, manufacturing, installation, operation maintenance.But,, reflect also in the practice that this form of structure of reinforced concrete pole exists some need study and the problem that further solves really along with the growth of pole tower operation time and operation, the operation of new bar.
Under same condition, steel reinforced concrete pole is more damaged than other concrete steel buildings, aging speed is fast, and application life is short.Electric pole top is general damaged slight.But it is the most serious near ground, the general breakage of electric pole part more than the face of land.Concrete frame ftractures and crackle generally occurs in down, the stage casing, and crack width is 0.1～10mm, and length does not wait to bar section total length from 0.3m; Perhaps: the bar section produces circumferential crack around part hoop or the edge, and these phenomenons generally also occur in down the stage casing; Or: generally aging, carbonization, the loose variable color of burn into material appear in the bar section, and intensity descends, and often closely the breakage of face portion burn into is comparatively serious, and the electric pole bottom occurs that large and small different bulk is peeled off, hollowing and main reinforcement, the serious corrosion of stirrup etc.In above-mentioned these damaged forms, with the bar section produce lobe and longitudinal crack problem comparatively generally, the most outstanding, have in addition new line cracking and crack problem all appear, quickened wearing out of shaft tower, obviously shortened service life.
The principal element of steel concrete development that shaft tower cracks is: wind shakes, wind pendulum, frost heave, temperature alternating and corrosion of steel bar.Under, the effect year after year multiple once, constantly develop into long and wide crack in these factors time.Aging, the carbonization of steel concrete shaft tower, corrosion breakage under similarity condition than aging, the damaged fast main cause of other reinforced concretes; Except that extraneous environment is abominable really; Also have bar section concrete protective layer thickness less than normal, main muscle and stirrup are often near external surface.Add that carbonization, corrosion of steel bar, three kinds of destructions of cracking interact, form vicious circle, cause shaft tower than damaged fast, the life-span weak point of other steel concrete.The damaged reason of steel concrete shaft tower and damaged form are very complicated, carbonization, aging, frost heave circulation, the corrosion of reinforcing bar and derivation property cracking is normally, inevitably, need just can take place behind certain time limit.Yet the structural failure crack of shaft tower is along with the increasing of rod member, the increase of slenderness ratio, " bamboo is split effect " just produce after progressively manifesting.This breakage generally occurs in newly-built or running time of the long circuit, makes other damaged forms obtain quickening and arriving in advance, with the application life that shortens shaft tower greatly.Therefore, the prevention and the processing of ultra-high-tension power transmission line steel concrete shaft tower lobe are vital for long-term safety, the economical operation of circuit.
Reinforcement measure to steel concrete shaft tower crackle is damaged is generally oozed crackle enforcement filling through adopting high-strength clay and height to ooze waterproof agent, to eliminate the cutting damage in crack as far as possible.It is bigger, consuming time longer that this method is implemented engineering quantity, owing to irritate that to ooze back cement tissue odds even, causes stress to concentrate simultaneously, and to preventing the cracks can spread poor effect, tower structure intensity is difficult to guarantee.
Summary of the invention
To above-mentioned prior art, the utility model provides a kind of ring section reinforced concrete pole longitudinal crack bracing means that is used for.
The utility model is realized through following technical scheme:
A kind of ring section reinforced concrete pole longitudinal crack bracing means that is used for; Comprise the binary link folder; Every secondary bar cramp is to be made up of two arc clips that cooperatively interact, and connects through bolt between two arc clips, forms a cylindrical cavity between two arc clips.
Preferably, connect through four bolts between said two arc clips, one group in twos on four bolts are divided into two groups, are distributed in arc clip both sides.
Use: when longitudinal crack appears in the ring section reinforced concrete pole; At body of the tower cracks upper-lower position the bar cramp of one copy utility model is installed respectively; Tighten the bolt that connects the arc clip; The shaft cracks is applied radial stresses with fixing arc clip, prevent cracks can spread, increase the shaft rigidity of structure and intensity simultaneously.
In the practical application,, the operation conditions behind the strutting of pole is carried out complete detection through to shaft multiple spot vibration survey and foundation vibrations and mechanics strain measurement.Detect the back result and show that Scheme of Strengthening has obtained extraordinary effect.
Compared with prior art, the beneficial effect of the utility model is: after reinforcement was accomplished, maximum stress value reduced, and crackle is no longer expanded simultaneously, and simple to operation, need not have a power failure, and cost is low.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the user mode reference diagram of the utility model.
Wherein, 1, bar cramp; 2, bolt; 3, arc clip; 4, longitudinal crack.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described.
A kind of ring section reinforced concrete pole longitudinal crack bracing means that is used for; Comprise binary link folder 1; Every secondary bar cramp 1 is to be made up of two arc clips 3 that cooperatively interact, and connects through bolt 2 between two arc clips 3, forms a cylindrical cavity between two arc clips 3.
Connect through four bolts 2 between said two arc clips 3, one group in twos on four bolts 2 are divided into two groups, are distributed in arc clip 3 both sides.
Use: when longitudinal crack 4 appears in the ring section reinforced concrete pole; The bar cramp 1 of one copy utility model respectively is installed at body of the tower cracks upper-lower position; Tighten the bolt 2 that connects arc clip 3; The shaft cracks is applied radial stresses with fixing arc clip 3, prevent cracks can spread, increase the shaft rigidity of structure and intensity simultaneously.
In the practical application,, the operation conditions behind the strutting of pole is carried out complete detection through to shaft multiple spot vibration survey and foundation vibrations and mechanics strain measurement.Detect the back result and show that Scheme of Strengthening has obtained extraordinary effect.
Claims (2)
1. one kind is used for ring section reinforced concrete pole longitudinal crack bracing means; It is characterized in that: comprise the binary link folder; Every secondary bar cramp is to be made up of two arc clips that cooperatively interact; Connect through bolt between two arc clips, form a cylindrical cavity between two arc clips.
2. a kind of ring section reinforced concrete pole longitudinal crack bracing means that is used for according to claim 1; It is characterized in that: connect through four bolts between said two arc clips; One group in twos on four bolts are divided into two groups, are distributed in arc clip both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201910754U CN202100022U (en) | 2011-06-08 | 2011-06-08 | Reinforcing device used for longitudinal crack of reinforced concrete pole with annular cross section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201910754U CN202100022U (en) | 2011-06-08 | 2011-06-08 | Reinforcing device used for longitudinal crack of reinforced concrete pole with annular cross section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202100022U true CN202100022U (en) | 2012-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201910754U Expired - Fee Related CN202100022U (en) | 2011-06-08 | 2011-06-08 | Reinforcing device used for longitudinal crack of reinforced concrete pole with annular cross section |
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| Country | Link |
|---|---|
| CN (1) | CN202100022U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103276937A (en) * | 2013-05-17 | 2013-09-04 | 国家电网公司 | Temporary electric pole reinforcing device |
| CN105484514A (en) * | 2015-12-16 | 2016-04-13 | 桂林理工大学 | Method for strengthening circular reinforced concrete pier column |
| CN108798063A (en) * | 2018-08-28 | 2018-11-13 | 国网山东省电力公司电力科学研究院 | A kind of reinforced concrete pole steel plate ring damage bracing means and reinforcement means |
| CN109989360A (en) * | 2019-03-26 | 2019-07-09 | 中铁七局集团有限公司 | A kind of Railway Bridges And Piers Vertical Cracks bracing means and its reinforcement means |
| CN113863295A (en) * | 2021-11-04 | 2021-12-31 | 江苏宏强新型建材有限公司 | Anti-seismic anti-cracking precast concrete pile and processing method thereof |
-
2011
- 2011-06-08 CN CN2011201910754U patent/CN202100022U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103276937A (en) * | 2013-05-17 | 2013-09-04 | 国家电网公司 | Temporary electric pole reinforcing device |
| CN105484514A (en) * | 2015-12-16 | 2016-04-13 | 桂林理工大学 | Method for strengthening circular reinforced concrete pier column |
| CN108798063A (en) * | 2018-08-28 | 2018-11-13 | 国网山东省电力公司电力科学研究院 | A kind of reinforced concrete pole steel plate ring damage bracing means and reinforcement means |
| CN109989360A (en) * | 2019-03-26 | 2019-07-09 | 中铁七局集团有限公司 | A kind of Railway Bridges And Piers Vertical Cracks bracing means and its reinforcement means |
| CN113863295A (en) * | 2021-11-04 | 2021-12-31 | 江苏宏强新型建材有限公司 | Anti-seismic anti-cracking precast concrete pile and processing method thereof |
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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: STATE ELECTRIC NET CROP. Effective date: 20130314 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130314 Address after: 250002 Ji'nan City Central District, Shandong, No. 2 South Road, No. 500 Patentee after: Shandong Research Inst. of Electric Power Patentee after: State Grid Corporation of China Address before: 250002 Ji'nan City Central District, Shandong, No. 2 South Road, No. 500 Patentee before: Shandong Research Inst. of Electric Power |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 Termination date: 20180608 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |