CN101845898A - Reinforced concrete structure electrochemical embedded type reinforcing method and device thereof - Google Patents
Reinforced concrete structure electrochemical embedded type reinforcing method and device thereof Download PDFInfo
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- CN101845898A CN101845898A CN 201010188848 CN201010188848A CN101845898A CN 101845898 A CN101845898 A CN 101845898A CN 201010188848 CN201010188848 CN 201010188848 CN 201010188848 A CN201010188848 A CN 201010188848A CN 101845898 A CN101845898 A CN 101845898A
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Abstract
The utility model relates to the field of reinforcement of a reinforced concrete structure and discloses a reinforced concrete structure electrochemical embedded type reinforcing method and a device thereof. The reinforcing method comprises the steps that: a groove is arranged at the position of a reinforcing area of a reinforced concrete structure body according to specific size; a binding agent is coated on an aluminium alloy stiffened outer plate fixedly connected with the surface of the reinforcing area of the reinforced concrete structure body and the side surface of an aluminium alloy stiffened column matched with the shape of the groove, and an aluminium alloy reinforcing piece connected by the stiffened outer plate and the stiffened column is stuck on the surface of the reinforcing area of the reinforced concrete structure body; and the invention can repair and improve the bearing capacity performance and the durability performance of the reinforced concrete, improve cost performance and safety of the structure, simultaneously guarantee better ductility, do not coat the binding agent at the tail end of the aluminium alloy stiffened column, and can lead the reinforcement in the reinforced concrete structure to obtain the effects of protection or dust prevention.
Description
Technical field
The present invention relates to the field of reinforcement of reinforced concrete structure, in particular a kind of reinforced concrete structure electrochemical embedded type reinforcing method and device.
Background technology
Under the acting in conjunction of load and strand corrosive environment, the performance degradation of concrete structure often is accompanied by concrete crack developing, and the various structural strengthening technology of deriving thus have been widely used in engineering practice.
Wherein, often adopt the outer fibre reinforced composites reinforced concrete structure reinforcement means of (Fiber ReinforcedPolymer is called for short FRP) that pastes in the prior art.Yet because the complexity and the reinforcement material self of structural fortification, still there is the further problem of research of some needs in the concrete structure reinforcement technology under the littoral environment.For example: FRP is a kind of fragile material, and often ductility is relatively poor for the concrete structure that adopts FRP to reinforce.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
The technical problem to be solved in the present invention is, above-mentioned defective at prior art, a kind of reinforced concrete structure electrochemical embedded type reinforcing method and device are provided, bearing capacity performance and endurance quality that it could repair and improve reinforced concrete structure guarantee preferably ductility simultaneously, have reduced reinforcement cost.
The technical scheme that technical solution problem of the present invention is adopted is as follows:
A kind of reinforced concrete structure electrochemical embedded type reinforcing method wherein, comprises step:
A, size is offered groove in accordance with regulations in reinforced concrete structure body reinforcing area position, and removes the dust in the described groove;
B, with cementing agent spread upon the aluminium alloys of fixedlying connected with described reinforced concrete structure body reinforcing area surface put more energy on the outside plate, and and the adaptive aluminium alloys stiffening column side of described groove shapes on, and will stick on the reinforcing area surface of described reinforced concrete structure body by the aluminium alloys girth member that described put more energy into outside plate and described stiffening column are formed by connecting;
C, with clamp or with the fixing reinforcing area surface of aluminium alloy plate and reinforced concrete structure body of braced structures.
Described reinforced concrete structure electrochemical embedded type reinforcing method wherein, also comprises step between described steps A and the B:
A1, described groove inner surface polishing cleaning is smooth;
Described reinforced concrete structure electrochemical embedded type reinforcing method wherein, also comprises step between described steps A 1 and the B:
A2, the groove inner surface of described reinforced concrete structure body reinforcing area and the dust on the described aluminum alloy plate materials are cleaned out.
Described reinforced concrete structure electrochemical embedded type reinforcing method wherein, also comprises step between described step B and the C:
B1, will be short of part as required and pour into cementing agent again, and push, the air of sneaking into sticking area will be extruded, and with unnecessary cementing agent removing.
Described reinforced concrete structure electrochemical embedded type reinforcing method wherein, also comprises step after the described step C:
D, after cementing agent sclerosis, clear up smooth once more to the ruggedized construction surface.
Described reinforced concrete structure electrochemical embedded type reinforcing method, wherein, described cementing agent adopts modified epoxy resin adhesive.
A kind of reinforced concrete structure electrochemical embedded type bracing means, comprise the reinforced concrete structure body, wherein, it also comprises an aluminium alloys girth member and the groove of offering on described reinforced concrete structure body, described aluminium alloys girth member comprises stiffening column and the put more energy into outside plate that with described stiffening column fixedly connected and that be fixed on described reinforced concrete structure body reinforcing area external surface adaptive with described groove shapes.
Described reinforced concrete structure electrochemical embedded type bracing means, wherein, described stiffening column side surface is provided with first adhesive layer, and described stiffening column is pasted with described groove by the described first knot agent layer and is connected.
Described reinforced concrete structure electrochemical embedded type bracing means, wherein, described reinforced concrete structure body reinforcing area external surface is provided with second adhesive layer, and the described outside plate of putting more energy into is pasted with described reinforced concrete structure body reinforcing area external surface by described second adhesive layer and is connected.
Described reinforced concrete structure electrochemical embedded type bracing means, wherein, described first adhesive layer and second adhesive layer all are the modified epoxy resin adhesive layer.
Reinforced concrete structure electrochemical embedded type reinforcing method provided by the present invention and device, owing to adopted in the reinforcing area groove of described reinforced concrete structure and be pasted with aluminium alloy plate, and aluminium alloy plate possesses fabulous corrosion resistance and intensity and the plasticity close with steel, can solve the deficiency of existing reinforcement means preferably; And described aluminium is closed girth member reinforce on described reinforced concrete structure reinforcing area surface, make overall structure more firm, reduced reinforcement cost simultaneously; And do not smear cementing agent at aluminium alloys stiffening column end, the reinforcing bar in the reinforced concrete structure is protected or antirust effect.
Description of drawings
Fig. 1 is the reinforced concrete structure electrochemical embedded type bracing means cross-sectional view that the embodiment of the invention provides;
Fig. 2 is the reinforced concrete structure electrochemical embedded type reinforcing method flow chart that the embodiment of the invention provides.
The specific embodiment
A kind of reinforced concrete structure electrochemical embedded type reinforcing method of the present invention and device, clearer, clear and definite for making purpose of the present invention, technical scheme and advantage, below develop simultaneously with reference to accompanying drawing that the present invention is described in more detail for embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
A kind of reinforced concrete structure electrochemical embedded type bracing means that the embodiment of the invention provides as shown in Figure 1, comprises reinforced concrete structure body 140, and is arranged on the main reinforcement 130 in the reinforced concrete structure body 140.It also comprises an aluminium alloys girth member 200 and the groove of offering 141 on described reinforced concrete structure body, size shape that institute's groove 141 is offered and concrete number should be decided according to the need situation of reinforcing.As on the reinforced concrete structure rectangular beam, offering two grooves 141 in the present embodiment.
Further, described aluminium alloys girth member 200 comprises and the adaptive stiffening column of described groove 141 shapes 210 and the outside plate 220 of putting more energy into of fixedlying connected with described stiffening column 210.Described putting more energy into outside plate 220 and described reinforced concrete structure body reinforcing area external surface suitable joining of card.Like this, adaptive with engaging of described groove 141 by the aluminium alloys girth member 200 that the described stiffening column 210 and the outside plate 220 of putting more energy into are formed by fixedly connecting by described stiffening column 210, with described 140 embedded connections of reinforced concrete structure body.Can improve the fixing of described reinforced concrete structure integral body.
Further, described stiffening column 210 side surfaces are provided with first adhesive layer 121, and described stiffening column 210 is pasted with described groove 141 by the described first knot agent layer 121 and is connected.It is emphasized that among the present invention, do not smear cementing agent, because aluminium alloys is the lower metal material of a kind of current potential at aluminium alloys stiffening column 210 ends.If aluminium alloys and reinforcing bar are connected, potential corrosion will take place in aluminium alloys, and reinforcing bar can obtain effect protected or rust cleaning.So do not smear cementing agent at aluminium alloys stiffening column 210 ends among the present invention, the reinforcing bar in the reinforced concrete structure is protected or antirust effect.
Described reinforced concrete structure electrochemical embedded type bracing means, wherein, described reinforced concrete structure body 141 reinforcing area external surfaces are provided with second adhesive layer 122, and the described outside plate 220 of putting more energy into is pasted with described reinforced concrete structure body reinforcing area external surface by described second adhesive layer 122 and is connected.
Preferably, described first adhesive layer 121 and second adhesive layer 122 all are the modified epoxy resin adhesive layer.And adhesive layer thickness is about 3mm.
Certainly, institute of the present invention reinforced steel concrete structure body is not limited to above-mentioned rectangular beam structure, can also be other various reinforced concrete structure shapes of reinforcing of needing, as columniform or the like.
Like this, reinforced concrete structure electrochemical embedded type bracing means of the present invention has adopted aluminium alloy plate to possess fabulous corrosion resistance and intensity and the plasticity close with steel, can solve the deficiency of existing reinforcement means preferably; Bearing capacity performance and endurance quality that it could repair and improve steel concrete, the safety that improved cost performance, improves structure guarantees ductility preferably simultaneously, and makes overall structure more firm.And do not smear cementing agent at aluminium alloys stiffening column end, the reinforcing bar in the reinforced concrete structure is protected or antirust effect.
Based on above-mentioned reinforced concrete structure electrochemical embedded type bracing means, the embodiment of the invention also provides a kind of reinforced concrete structure electrochemical embedded type reinforcing method, as shown in Figure 2, the concrete reinforcement means of promptly above-mentioned reinforced concrete structure electrochemical embedded type bracing means may further comprise the steps:
S301, in reinforced concrete structure body 140 reinforcing area positions, with adopting makita 4100NH size recessing 141 in accordance with regulations, two grooves 141 as shown in Figure 1, and remove dust in the described groove 141;
S302, the reinforcing area surface finish cleaning of reinforced concrete structure body is smooth; Promptly as Fig. 1 as showing, the groove 141 surface finish cleaning of described reinforced concrete structure body 140 reinforcing areas is smooth.
After groove 141 dry tack frees of S303, the reinforced concrete structure body reinforcing area cleared up of waiting to polish, the groove inner surface and the dust on the described aluminum alloy plate materials of described reinforced concrete structure body reinforcing area are cleaned with cleaning agent.
S304, employed cementing agent is stirred by instructions for use.
S305, be ready to the surperficial and adaptive aluminium alloys girth member 200 of described groove 141 shapes with described reinforced concrete structure body reinforcing area simultaneously, with cementing agent spread upon described groove 141 two sides (as shown in Figure 1 411 and 412, keep its end face not need cementing agent to smear) and and described reinforced concrete structure body 140 reinforcing area external surfaces 142, and cementing agent spread upon on the outside plate 220 of putting more energy into of fixedlying connected with described reinforced concrete structure body 140 reinforcing areas surface, and with adaptive stiffening column 210 sides of described groove 141 shapes on (not smearing cementing agent) at aluminium alloys stiffening column end, and the aluminium alloys girth member 200 that described put more energy into outside plate 220 and described stiffening column 210 are formed by connecting sticks on described reinforced concrete structure body reinforcing area.
Whether S306, inspection have the shortcoming part of not filling cementing agent, then will be short of part as required and pour into cementing agent again, and push, and the air of sneaking into sticking area is extruded, and unnecessary cementing agent is removed.
S307, with clamp or with the fixing reinforcing area surface of aluminium alloy plate and reinforced concrete structure body of braced structures, and suitably pressurization guarantees the reliability of bonding.
S308, after cementing agent sclerosis, body structure surface is cleared up once more, keep its surfacing.
Reinforced concrete structure electrochemical embedded type reinforcing method provided by the present invention and device, owing to adopted in the reinforcing area groove of described reinforced concrete structure and be pasted with aluminium alloy plate, and aluminium alloy plate possesses fabulous corrosion resistance and intensity and the plasticity close with steel, can solve preferably the deficiency of existing reinforcement means; And described aluminium is closed girth member reinforce on described reinforced concrete structure reinforcing area surface, make overall structure more firm, reduced simultaneously reinforcement cost; And do not smear binding agent at aluminium alloy stiffening column end, the reinforcing bar in the reinforced concrete structure is protected or antirust effect; Simultaneously the present invention has following advantage:
(1), owing to adopt the high-strength low-quality of aluminium alloy girth member, strength and ductility and structural steel are close, density only is 1/3 of steel. Therefore, use the aluminium alloy reinforced concrete structure, be expected in the situation that does not significantly increase dead load, improve the security of structure, guarantee simultaneously preferably ductility.
(2), when aluminium alloy is exposed in the air, its surface can generate rapidly fine and close oxide-film, possesses fabulous Corrosion Protection. Therefore, adopt aluminium alloy can effectively completely cut off the strand corrosive environment to the infringement of xoncrete structure as reparation and reinforcement material, can not increase the whole anticorrosion expense of structure simultaneously.
(3), reinforcement form flexibly: the employing extrusion process that aluminium alloy can be rapid, economic is processed into various cross section types, and this is the outstanding advantages that aluminium alloy surmounts structural steel.
(4), cost performance preferably: the required satisfied function (being security, applicability and life requirement) of structure and the complexity of architectural engineering, the material price that causes Unit Weight is the most important index of choice structure material absolutely not. For the overall expenses of concrete structure reinforcement under the corrosive environment of strand, the ratio that material price may account for total cost is lower.
(5), the chemical property of aluminium alloy: aluminium alloy is the lower metal material of a kind of current potential. If aluminium alloy and reinforcing bar are connected, potential corrosion will take place in aluminium alloy, and reinforcing bar can obtain effect protected or rust cleaning. This is a kind of reinforced concrete structure electrochemical embedded type reinforcing method that has potentiality
Should be understood that application of the present invention is not limited to above-mentioned giving an example, for those of ordinary skills, can be improved according to the above description or conversion that all these improvement and conversion all should belong to the protection domain of claims of the present invention.
Claims (10)
1. a reinforced concrete structure electrochemical embedded type reinforcing method is characterized in that, comprises step:
A, size is offered groove in accordance with regulations in reinforced concrete structure body reinforcing area position, and removes the dust in the described groove;
B, with cementing agent spread upon the aluminium alloys of fixedlying connected with described reinforced concrete structure body reinforcing area surface put more energy on the outside plate, and and the adaptive aluminium alloys stiffening column side of described groove shapes on, and will stick on the reinforcing area surface of described reinforced concrete structure body by the aluminium alloys girth member that described put more energy into outside plate and described stiffening column are formed by connecting;
C, with clamp or with the fixing reinforcing area surface of aluminium alloy plate and reinforced concrete structure body of braced structures.
2. reinforced concrete structure electrochemical embedded type reinforcing method according to claim 1 is characterized in that, also comprises step between described steps A and the B:
A1, described groove inner surface polishing cleaning is smooth;
3. reinforced concrete structure electrochemical embedded type reinforcing method according to claim 2 is characterized in that, also comprises step between described steps A 1 and the B:
A2, the groove inner surface of described reinforced concrete structure body reinforcing area and the dust on the described aluminum alloy plate materials are cleaned out.
4. reinforced concrete structure electrochemical embedded type reinforcing method according to claim 1 is characterized in that, also comprises step between described step B and the C:
B1, will be short of part as required and pour into cementing agent again, and push, the air of sneaking into sticking area will be extruded, and with unnecessary cementing agent removing.
5. reinforced concrete structure electrochemical embedded type reinforcing method according to claim 1 is characterized in that, also comprises step after the described step C:
D, after cementing agent sclerosis, clear up smooth once more to the ruggedized construction surface.
6. reinforced concrete structure electrochemical embedded type reinforcing method according to claim 1 is characterized in that, described cementing agent adopts modified epoxy resin adhesive.
7. reinforced concrete structure electrochemical embedded type bracing means, comprise the reinforced concrete structure body, it is characterized in that, it also comprises an aluminium alloys girth member and the groove of offering on described reinforced concrete structure body, described aluminium alloys girth member comprises stiffening column and the put more energy into outside plate that with described stiffening column fixedly connected and that be fixed on described reinforced concrete structure body reinforcing area external surface adaptive with described groove shapes.
8. reinforced concrete structure electrochemical embedded type bracing means according to claim 7 is characterized in that, described stiffening column side surface is provided with first adhesive layer, and described stiffening column is pasted with described groove by the described first knot agent layer and is connected.
9. reinforced concrete structure electrochemical embedded type bracing means according to claim 8, it is characterized in that, described reinforced concrete structure body reinforcing area external surface is provided with second adhesive layer, and the described outside plate of putting more energy into is pasted with described reinforced concrete structure body reinforcing area external surface by described second adhesive layer and is connected.
10. reinforced concrete structure electrochemical embedded type bracing means according to claim 9 is characterized in that, described first adhesive layer and second adhesive layer all are the modified epoxy resin adhesive layer.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103205755A (en) * | 2013-04-16 | 2013-07-17 | 深圳大学 | Cathode protection method and cathode protection device for reinforced concrete adopting CFRP (carbon fibre reinforced plastics) embedded anode |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103205755A (en) * | 2013-04-16 | 2013-07-17 | 深圳大学 | Cathode protection method and cathode protection device for reinforced concrete adopting CFRP (carbon fibre reinforced plastics) embedded anode |
| CN103205755B (en) * | 2013-04-16 | 2015-11-18 | 深圳大学 | CFRP is adopted to embed protecting reinforced concrete cathode method and the device of anode |
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| CN101845898B (en) | 2012-07-25 |
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