CN203256334U - CFRP (Carbon Fiber Reinforced Plastics)-reinforced concrete combined structure for automatic cathode protection - Google Patents
CFRP (Carbon Fiber Reinforced Plastics)-reinforced concrete combined structure for automatic cathode protection Download PDFInfo
- Publication number
- CN203256334U CN203256334U CN 201320190620 CN201320190620U CN203256334U CN 203256334 U CN203256334 U CN 203256334U CN 201320190620 CN201320190620 CN 201320190620 CN 201320190620 U CN201320190620 U CN 201320190620U CN 203256334 U CN203256334 U CN 203256334U
- Authority
- CN
- China
- Prior art keywords
- cfrp
- reinforced concrete
- device body
- reinforcing bar
- composite structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Prevention Of Electric Corrosion (AREA)
Abstract
The utility model discloses a CFRP (Carbon Fiber Reinforced Plastics)-reinforced concrete combined structure for automatic cathode protection. The CFRP-reinforced concrete combined structure comprises a CFRP sectional material which is arranged on the surface of a reinforcing region of a reinforced concrete device body; the reinforced concrete device body and the CFRP sectional material are integrally poured; an external power supply for applying current to a steel bar is arranged between at least one steel bar of the reinforced concrete device body and the CFRP sectional material. According to the CFRP-reinforced concrete combined structure disclosed by the utility model, the reinforced concrete of a combined structure body and the CFRP sectional material are integrally poured, at least one steel bar of the reinforced concrete body and the CFRP sectional material are connected through concrete, and a direct-current power supply which only can provide constant current or voltage is adopted, so that the durability and the cost performance of the structure are improved.
Description
Technical field
The utility model relates to the unitized construction field of Steel Concrete, relates in particular to a kind of new CFRP-reinforced concrete composite structure of automatic cathode protection.
Background technology
In recent years, the FRP-concrete combined structure has attracted scholar's concern more and more.This is to adopt FRP to need not extra template and corresponding form removal operation and good weather resistance as template due to stressing conditions, construction process that the FRP-concrete combined structure can improve structure.The good weather resistance of this unitized construction is mainly due to the FRP material that has adopted excellent in durability, and FRP has the ability of the outside objectionable impurities intrusion of prevention to the member of its full parcel.Above-mentioned structure durability is than more sensitive to material requirements, construction process and Working environment.When having construction wrong, defective and the inside configuration of FRP material self contain enough objectionable impuritiess etc., and the weather resistance of structure has just no longer had the advantage of unitized construction.And when the concrete material of the objectionable impuritiess such as muriate, vitriol is rich in use, as typical marine sand concrete, owing to having possessed each condition of accelerating reinforcement corrosion, the time of the reinforcing bar corrosion of inside configuration shifts to an earlier date greatly, destroy the weather resistance of structure, and then need to be to its maintenance of doing sth. in advance and maintenance.
The advantages such as high-strength light, modulus are large, good corrosion resistance are in fact because having as the more common carbon fibre reinforced composite (CFRP) of structural strengthening and unitized construction field, CFRP is except the mechanical property that people know, because one of its main component that contains-carbon fiber has good electrochemical properties, be good electroconductibility and near the electropotential of precious metal, CFRP has good electrochemical properties equally.Therefore, the applicant utilizes the electrochemical properties of CFRP to form the impressed current cathodic protection method that a kind of novel supplementary anode is applied to skeleton construction.
Further, can utilize mechanical property and the electrochemical properties of CFRP, form a kind of new composite structure system that has simultaneously reinforcing bar protection and cathodic protection.The CFRP that this means one of composition material as structure has not only brought into play its advantage in unitized construction, will play simultaneously the supplementary anode in the impressed current cathodic protection system.When structure is just applied faint cathodic current from building up, make by the detection in the cathodic protection device and Controlling System that in structure, reinforcing bar is in the cathodic polarization state for a long time, thereby reach the effect of protection.Therefore, even inside configuration is intrinsic or the corrosive mediums such as chlorion that invade from the outside, this new composite structure has the ability of very strong opposing reinforcement corrosion, obviously improves the weather resistance of structure.
Yet conventional skeleton construction impressed current cathodic protection system is mainly by reinforcing bar, supplementary anode, direct supply, detection system and composition of the control system.Therefore wherein, the cost of system mainly is distributed on supplementary anode and Controlling System, wants the cost of control cathode protection, can develop in the configuration of suitable supplementary anode or improved system and start with.Wherein, suitable supplementary anode can be realized by the supplementary anode that research and development contain CFRP.
After newly-built structure is applied impressed current cathodic protection, need the etch state of reinforcing bar is detected according to traditional thinking, measure the electrochemical parameter of reinforcing bar, as polarized potential, corrosion electric current density etc., and feed back to Controlling System.When the electrochemical parameter of reaction corrosion conditions of reinforcement did not meet the demands, Controlling System can be regulated voltage or the electric current output of direct supply, until guarantee that in structure, reinforcing bar all is subject to enough protections.This has determined that traditional impressed current cathodic protection needs expensive cost, and daily maintenance and operation expense.
In view of this, prior art awaits to improve and improve.
The utility model content
Deficiency in view of the aforesaid combination structure durability; The purpose of this utility model is to provide the CFRP-reinforced concrete composite structure of automatic cathode protection; Namely utilized the dual-use function of CFRP as unitized construction material and supplementary anode; And adopted cathodic protection device without detection system and Controlling System; Be intended to solve the problem of cathodic protection cost costliness inner intrinsic or that adopt in the corrosion prevention of the skeleton construction that is rich in corrosive medium of outside invasion; CFRP-reinforced concrete composite structure and the method for automatic cathode protection are provided; Conventional detection and Controlling System have been saved; Simplified the cathodic protection device; Improved the cost performance of structure.
The technical solution of the utility model is as follows:
The CFRP-reinforced concrete composite structure of a kind of automatic cathode protection, wherein, it comprises the CFRP section bar on the reinforcing area surface that is arranged on the Steel Concrete device body;
And Steel Concrete device body and CFRP section bar one-piece casting are connected the external power source that is used for reinforcing bar is applied electric current between at least one reinforcing bar of Steel Concrete device body and CFRP section bar.
The CFRP-reinforced concrete composite structure of described automatic cathode protection wherein, is provided with many reinforcing bars in described Steel Concrete device body, and, be electrically connected between many reinforcing bars.
The CFRP-reinforced concrete composite structure of described automatic cathode protection, wherein, described external power source is direct supply.
The CFRP-reinforced concrete composite structure of described automatic cathode protection, wherein, described Steel Concrete device body is cylindrical or rectangular configuration.
The CFRP-reinforced concrete composite structure of described automatic cathode protection, wherein, described Steel Concrete device body is cylindrical structural, and described reinforcing bar is provided with many, and around the surrounding that is arranged on the Steel Concrete device body, be electrically connected between adjacent reinforcing bar.
The CFRP-reinforced concrete composite structure of described automatic cathode protection, wherein, described CFRP section bar is the CFRP pipe.
Beneficial effect: the utility model is owing to having applied galvanic protection; By the CFRP material, concrete reinforcing steel is applied the purpose that small electric current comes the implementation structure galvanic protection; Thereby pro-active intervention the reinforcement corrosion in marine sand concrete; And; The utility model utilizes the dual-use function of structural strengthening and the galvanic protection of CFRP material; Be applied in the middle of the Steel Concrete device; Even in the situation that corrosive medium is rich in concrete material inside or outside atmosphere is abominable; Reinforcing bar also can obtain enough protections; And this device adopts can export enough Constant Direct Current power supplys of size; Conventional detection and Controlling System have been saved; Simplified the cathodic protection device; Improved the cost performance of structure.Simultaneously, the utility model is also directly built CFRP, concrete and rebar as a whole, has saved the operation that the cathodic protection structure body is installed, and has improved operating efficiency.
Description of drawings
Fig. 1 is the structural representation of the CFRP-reinforced concrete composite structure preferred embodiment of the utility model automatic cathode protection.
Embodiment
The utility model provides CFRP-reinforced concrete composite structure and the method for automatic cathode protection, and is clearer, clear and definite for making the purpose of this utility model, technical scheme and effect, below the utility model further described.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
See also Fig. 1, Fig. 1 is the structural representation of the CFRP-reinforced concrete composite structure preferred embodiment of a kind of automatic cathode protection of the utility model, and as shown in the figure, it comprises two macrostructure bodies: Steel Concrete device body and cathodic protection structure body.
In described Steel Concrete device body, it comprises concrete 3, reinforcing bar 2, CFRP pipe 1, reinforcing bar 2 is embedded in concrete 3 inside, it is surperficial that CFRP pipe 1 arranges the Steel Concrete device body, and by mutually being electrically connected between concrete 3 and reinforcing bar 2, managing at least one reinforcing bar 2 and the CFRP of Steel Concrete device body and be connected between 1 for reinforcing bar 2 being applied the external power source 5 of electric current.In the utility model, Steel Concrete device body and CFRP pipe one-piece casting, like this, the cathodic protection structure body can be arranged on the Steel Concrete device body easily.
CFRP pipe is for the matrix material that mixes different fibers or body material etc., such as the fibre reinforced composites that mixed carbon fiber and glass fibre etc.The CFRP pipe can obtain by the unitized construction Theoretical Calculation.
The present embodiment takes full advantage of mechanical property and the electrochemical properties of CFRP material; make the CFRP material serve as the dual role of reinforcement material and supplementary anode in structural system of the present utility model; like this unitized construction and two kinds of functions of cathodic protection are incorporated in an individual system effectively; even for example in sea sand, reinforcing bar is protected at the concrete that is rich in corrosive medium.Reinforcing bar 2-concrete 3-CFRP pipe 1(connects by wire 6) the complete electric pathway of formation can successfully transmit cathodic protection current; adopt the power supply that to export permanent large curtage to apply small electric current in the utility model in the cathodic protection structure body; realize cathodic protection; the reinforcing bar current potential is dropped on exempt from the erosion district by apply cathodic current to reinforcing bar; and then reach the protection reinforcing bar purpose; so described external power source is for providing the direct supply of constant size curtage.
Steel Concrete device body in the utility model can be cylindrical structural or make the rectangular beam structure; Cylindrical structural shown in Figure 1 for example; In the embodiment shown in fig. 1; Many reinforcing bars 2 around be arranged on concrete 3 around; And be electrically connected between adjacent reinforcing bar 2; With the reinforcing bar 2 that is electrically connected to; Concrete 3; CFRP manages 1 one-piece casting; Just can save the installation procedure of cathodic protection structure body; Directly get final product on the upper Steel Concrete device body of external power source connection with the cathodic protection structure body; For example any reinforcing bar 2 is connected the negative pole of upper external power source 5; The positive pole that CFRP pipe 1 is connected external power source 5; Can form described cathodic protection structure body.
In the utility model, should consider respectively mechanical property and the cathodic protection effect of system, principle of design separately and method of calculation can be with reference to related documents or standards.
Described CFRP pipe 1 has played the effect of reinforcement material and supplementary anode; it must have the performances such as reliable mechanical property, electrochemical properties and weather resistance under long duration load, environmental factors and protective current acting in conjunction, in order to bring into play simultaneously the function of unitized construction and cathodic protection.
Further, the number of steel bars in described concrete is at least 1, when the reinforcing bar number greater than 1 the time, be electrically connected to (connecting by wire 4) between reinforcing bar, and the electrical connectivity between the detection reinforcing bar, the number of number of steel bars is unrestricted, for example 3,4,5 or other numbers.
In the utility model, the advantages such as high-strength light, modulus are large, good corrosion resistance are in fact because having for carbon fibre reinforced composite (CFRP), CFRP is except the mechanical property that people know, because one of its main component that contains-carbon fiber has good electrochemical properties, be good electroconductibility and near the electropotential of precious metal, CFRP has good electrochemical properties equally.Therefore, the utility model utilizes the electrochemical properties of CFRP to form in the impressed current cathodic protection field that a kind of novel supplementary anode is applied to skeleton construction.
Further, can utilize mechanical property and the electrochemical properties of CFRP, form a kind of new composite structure system that has simultaneously reinforcing bar protection and cathodic protection.The CFRP that this means one of composition material as structure has not only brought into play its advantage in unitized construction, will play simultaneously the supplementary anode in the impressed current cathodic protection system.The utility model can be realized in an individual system simultaneously to the structural strengthening of structure and the function of cathodic protection, owing to having adopted the supplementary anode that contains CFRP in whole system, save Controlling System and detection system in negative electrode guarantor safeguard system, significantly improved the cost performance of CFRP-reinforced concrete composite structure.
The utility model also provides a kind of working method of CFRP-reinforced concrete composite structure of automatic cathode protection, it comprises step: with Steel Concrete device body and CFRP section bar one-piece casting, the CFRP section bar is arranged on the reinforcing area surface of Steel Concrete device body, is connected for reinforcing bar being applied the external power source of electric current between at least one reinforcing bar of Steel Concrete device body and CFRP section bar.
Further, described CFRP section bar is the matrix material that mixes different fibers or body material.
In sum; CFRP-reinforced concrete composite structure and the method for a kind of automatic cathode protection that the utility model provides; By the CFRP material, concrete reinforcing steel is applied the purpose that small electric current comes the implementation structure galvanic protection; Thereby pro-active intervention the reinforcement corrosion in marine sand concrete; And; The utility model utilizes the dual-use function of structural strengthening and the galvanic protection of CFRP material; Be applied in the middle of the Steel Concrete device; Even in the situation that corrosive medium is rich in concrete material inside or outside atmosphere is abominable; Reinforcing bar also can obtain enough protections; And this device adopts can export enough Constant Direct Current power supplys of size; Conventional detection and Controlling System have been saved; Simplified the cathodic protection device; Improved the cost performance of structure.Simultaneously, the utility model is also directly built CFRP, concrete and rebar as a whole, has saved the operation that the cathodic protection structure body is installed, and has improved operating efficiency.
Should be understood that; application of the present utility model is not limited to above-mentioned giving an example; for those of ordinary skills, can be improved according to the above description or conversion, all these improve and conversion all should belong to the protection domain of the utility model claims.
Claims (6)
1. the CFRP-reinforced concrete composite structure of automatic cathode protection, is characterized in that, it comprises the CFRP section bar on the reinforcing area surface that is arranged on the Steel Concrete device body;
And Steel Concrete device body and CFRP section bar one-piece casting are connected the external power source that is used for reinforcing bar is applied electric current between at least one reinforcing bar of Steel Concrete device body and CFRP section bar.
2. the CFRP-reinforced concrete composite structure of automatic cathode protection according to claim 1, is characterized in that, is provided with many reinforcing bars in described Steel Concrete device body, and, be electrically connected between many reinforcing bars.
3. the CFRP-reinforced concrete composite structure of automatic cathode protection according to claim 1, is characterized in that, described external power source is direct supply.
4. the CFRP-reinforced concrete composite structure of automatic cathode protection according to claim 1, is characterized in that, described Steel Concrete device body is cylindrical or rectangular configuration.
5. the CFRP-reinforced concrete composite structure of automatic cathode according to claim 4 protection, it is characterized in that, described Steel Concrete device body is cylindrical structural, described reinforcing bar is provided with many, and around the surrounding that is arranged on the Steel Concrete device body, be electrically connected between adjacent reinforcing bar.
6. the CFRP-reinforced concrete composite structure of automatic cathode protection according to claim 4, is characterized in that, described CFRP section bar is the CFRP pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320190620 CN203256334U (en) | 2013-04-16 | 2013-04-16 | CFRP (Carbon Fiber Reinforced Plastics)-reinforced concrete combined structure for automatic cathode protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320190620 CN203256334U (en) | 2013-04-16 | 2013-04-16 | CFRP (Carbon Fiber Reinforced Plastics)-reinforced concrete combined structure for automatic cathode protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203256334U true CN203256334U (en) | 2013-10-30 |
Family
ID=49468918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320190620 Expired - Lifetime CN203256334U (en) | 2013-04-16 | 2013-04-16 | CFRP (Carbon Fiber Reinforced Plastics)-reinforced concrete combined structure for automatic cathode protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203256334U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103205756A (en) * | 2013-04-16 | 2013-07-17 | 深圳大学 | CFRP (carbon fiber reinforced plastic)-reinforced concrete composite structure with automatic cathode protection and method |
-
2013
- 2013-04-16 CN CN 201320190620 patent/CN203256334U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103205756A (en) * | 2013-04-16 | 2013-07-17 | 深圳大学 | CFRP (carbon fiber reinforced plastic)-reinforced concrete composite structure with automatic cathode protection and method |
| CN103205756B (en) * | 2013-04-16 | 2015-11-18 | 深圳大学 | The CFRP-reinforced concrete composite structure of automatic cathode protection and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106836622B (en) | Multifunctional disassembly-free template made of fiber composite material and preparation method of multifunctional disassembly-free template | |
| CN104831288B (en) | With reference to cathodic protection and the armored concrete guard method of structural strengthening and system | |
| CN102797296B (en) | CP anode function and stress self-induction integral intelligent composite material | |
| CN201033874Y (en) | Concrete electro-osmosis water-proof mixed alkali apparatus | |
| CN103469212A (en) | Positive electrode conductive filler used for negative electrode protection system of reinforced concrete | |
| CN101412635B (en) | Electrochemical realkalization method for carbonizing reinforced concrete | |
| CN106836227A (en) | A kind of reinforced concrete structure and its method of construction for carrying cathodic protection function | |
| CN108265758A (en) | A kind of solar energy intelligence inspection well cover | |
| CN103205756B (en) | The CFRP-reinforced concrete composite structure of automatic cathode protection and method | |
| CN103205758B (en) | For carrying out reinforcement means and the device of galvanic protection to skeleton construction | |
| CN203256334U (en) | CFRP (Carbon Fiber Reinforced Plastics)-reinforced concrete combined structure for automatic cathode protection | |
| CN208088353U (en) | A kind of solar energy intelligence inspection well cover | |
| CN203256335U (en) | CFRP (Carbon Fiber Reinforced Plastics)-reinforced concrete composite structure with cathodic protection function | |
| CN103065703A (en) | Non-corrosive electricity conduction and resistance reduction material and maintenance-free grounding device comprising the same | |
| CN201115981Y (en) | Electrochemistry rebasification device of carbonization steel reinforced concrete | |
| CN103215602B (en) | Method and device for strengthening reinforced concrete structure with cathode protection function | |
| CN103590334B (en) | A kind of anti-corrosion protection method of stayed structure and the drag-line with anti-corrosion function | |
| CN101701458B (en) | Triangularly arranged compound electrode of soft soil electrochemistry solidification | |
| CN201587982U (en) | Solar bridge steelwork protector | |
| CN203411990U (en) | Glass fiber reinforced plastic screw anchor foundation for electric transmission line tower | |
| CN103215601B (en) | The CFRP-reinforced concrete composite structure of tool cathodic protection function and method | |
| CN103205757B (en) | Adopt skeleton construction cathode protecting process and the device of CFRP anode | |
| CN203256336U (en) | Reinforcement device for cathodically protecting reinforced concrete structure | |
| CN203256332U (en) | Control-free reinforced concrete structure cathode protection device | |
| CN206486601U (en) | A kind of anticorrosion structure of T beams |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131030 |
|
| CX01 | Expiry of patent term |