CN101852023A - Reinforced concrete structure and reinforcement method - Google Patents

Reinforced concrete structure and reinforcement method Download PDF

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Publication number
CN101852023A
CN101852023A CN 201010188851 CN201010188851A CN101852023A CN 101852023 A CN101852023 A CN 101852023A CN 201010188851 CN201010188851 CN 201010188851 CN 201010188851 A CN201010188851 A CN 201010188851A CN 101852023 A CN101852023 A CN 101852023A
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reinforced concrete
concrete structure
alloy plate
aluminium alloy
structure body
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CN101852023B (en
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朱继华
邢锋
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Shenzhen University
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Shenzhen University
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Abstract

The invention relates to the field of the reinforcement of a reinforced concrete structure and discloses a reinforced concrete structure and a reinforcement method. The reinforcement method comprises the following steps of: (A) polishing the surface of a reinforcement area of a reinforced concrete structure body, cleaning and flattening; (B) smearing an adhesive on the already processed surface of the reinforcement area and the surface of an aluminum alloy plate and sticking the aluminum alloy plate which is already smeared with the adhesive at a preset position; and (C) clamping the reinforced reinforced concrete structure by using a fixture or fixing the reinforced reinforced concrete structure by using a support structure and pressurizing properly to enable the bonding to be firm. Because of adopting the aluminum alloy plate, the invention has very good corrosion resistance and strength and plasticity which are similar to those of a steel product and can better solve the defect of a traditional reinforcement method; the invention can restore and enhance the bearing capacity performance and the durability performance of reinforced concrete, enhances the price-to-performance ratio and enhances the safety of the structure; and meanwhile, the invention ensures better ductility and has simple operation and easy construction.

Description

A kind of reinforced concrete structure and reinforcement means
Technical field
The present invention relates to the field of reinforcement of reinforced concrete structure, in particular a kind of reinforced concrete structure and reinforcement means.
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 and reinforcement means are provided, it can repair and improve the bearing capacity performance and the endurance quality of reinforced concrete structure, guarantee simultaneously that preferably ductility and its need not slot, reinforcement process is simple, has 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 reinforcement means wherein, comprises step:
A, the reinforcing area surface finish cleaning of reinforced concrete structure body is smooth;
B, cementing agent is spread upon on reinforcing area surface of having handled well and the aluminium alloy plate face that needs bonding, and the aluminium alloy plate that will smear cementing agent sticks on the precalculated position on reinforcing area surface of described reinforced concrete structure body;
C, with clamp or with the fixing reinforced concrete structure of reinforcing of braced structures, and pressurization makes bonding firm.
Described reinforced concrete structure reinforcement means, wherein, the reinforcing area of described reinforced concrete structure body surface is the plane, the described aluminium alloy plate that adapts with it is a plate armature.
Described reinforced concrete structure reinforcement means wherein, also comprises step between described steps A and the B:
A1, the dust on the reinforcing area of described reinforced concrete structure body surface and the described aluminium alloy plate is cleaned out.
Described reinforced concrete structure reinforcement means 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 reinforcement means 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 reinforcement means, wherein, described cementing agent adopts modified epoxy resin adhesive.
A kind of reinforced concrete structure comprises the reinforced concrete structure body, wherein, is pasted with aluminium alloy plate on the reinforcing area surface of described reinforced concrete structure body.
Described reinforced concrete structure, wherein, the reinforcing area of described reinforced concrete structure body surface is the plane, the described aluminium alloy plate that adapts with it is a plate armature.
Described reinforced concrete structure, wherein, be provided with adhesive layer between the reinforcing area of described reinforced concrete structure body surface and described aluminium alloy plate, described aluminium alloy plate is connected with the surperficial stickup of the reinforcing area of described reinforced concrete structure body by adhesive layer.
Described reinforced concrete structure, wherein, described adhesive layer is the modified epoxy resin adhesive layer.
Reinforced concrete structure provided by the present invention and reinforcement means, owing to adopted on the reinforcing area surface 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; Simultaneously,, not needing other fluting fixing, making reinforcement process simple, and reduced reinforcement cost owing to only needing reinforcing area surface to paste aluminium alloy plate at described reinforced concrete structure.And the following advantage of tool:
(1), the high-strength low-quality of aluminium alloy plate, intensity and ductility and structural iron are close, density only is 1/3 of steel.Therefore, the present invention uses the aluminium alloy plate reinforced concrete structure, can improve the safety of structure under the situation that does not significantly increase dead load, guarantees ductility preferably simultaneously.
(2), when aluminium alloys is exposed in the air, its surface can generate rapidly fine and close oxide film, possesses fabulous Corrosion Protection.Therefore, the present invention adopts aluminium alloys can effectively completely cut off the infringement of strand corrosive environment to concrete structure as reparation and reinforcement material, can not increase the whole anticorrosion expense of structure simultaneously.
(3), has cost performance preferably.
Description of drawings
Fig. 1 is the reinforced concrete structure cross-sectional view that the embodiment of the invention provides;
Fig. 2 is the reinforced concrete structure reinforcement means flow chart that the embodiment of the invention provides.
The specific embodiment
A kind of reinforced concrete structure of the present invention and reinforcement means, 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 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.Important improvement part of the present invention is: the reinforcing area surface at described reinforced concrete structure body 140 is pasted with aluminium alloy plate 200.Wherein, the reinforcing area of described reinforced concrete structure body 140 is because of deciding according to specific circumstances, and for example, the steel concrete that has only need be reinforced a face, as shown in Figure 1.And the steel concrete that has need be reinforced two faces, three faces or need reinforce all around, when being cylindrical when described reinforced concrete structure body, then can adopting and all reinforce the aluminium alloy plate that bonds around described cylindrical reinforced concrete structural body.
In the present embodiment, as shown in Figure 1, the reinforcing area of described reinforced concrete structure body 140 surface is the plane, and the described aluminium alloy plate 200 that adapts with it is plate armature.
Wherein, between the reinforcing area of described reinforced concrete structure body 140 surface and described aluminium alloy plate 200, be provided with adhesive layer 120, as shown in Figure 1, described aluminium alloy plate 200 is pasted with the reinforcing area surface of described reinforced concrete structure body 140 by adhesive layer 120 and is connected.
Preferably, the material of described adhesive layer 120 adopts modified epoxy resin adhesive.And adhesive layer thickness is about 3mm.
Like this, reinforced concrete structure 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 simple to operate, construction is easily.
Based on above-mentioned reinforced concrete structure, the embodiment of the invention also provides a kind of reinforced concrete structure reinforcement means, and as shown in Figure 2, the concrete reinforcement means of promptly above-mentioned reinforced concrete structure may further comprise the steps:
S301, the reinforcing area surface finish cleaning of reinforced concrete structure body is smooth; Promptly as Fig. 1 as showing, the reinforcing area surface 141 polishing cleanings of described reinforced concrete structure body 140 are smooth.
After the reinforcing area dry tack free of S302, the reinforced concrete structure body cleared up of waiting to polish, that the reinforcing area surface and the dust on the described aluminium alloy plate of described reinforced concrete structure body is clean with cleaning agent.
S303, employed cementing agent is stirred by instructions for use.
S304, cementing agent is spread upon on reinforcing area surface of having handled well and the aluminium alloy plate face that needs bonding, and the aluminium alloy plate that will smear cementing agent sticks on the precalculated position on reinforcing area surface of described reinforced concrete structure body.
Whether S305, 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.
S306, with clamp or with the fixing reinforced concrete structure of reinforcing of braced structures, and suitably pressurization guarantees the reliability of bonding.
S307, after cementing agent sclerosis, body structure surface is cleared up once more, keep its surfacing.
Reinforced concrete structure provided by the present invention and reinforcement means, owing to adopted on the reinforcing area surface of described steel concrete and be pasted with aluminium alloy plate, and aluminium alloys possesses fabulous corrosion resistance and intensity and the plasticity close with steel, it can repair and improve the bearing capacity performance and the endurance quality of reinforced concrete structure, guarantee simultaneously that preferably ductility and its need not slot, reinforcement process is simple, has reduced reinforcement cost; And the following advantage of tool:
(1), the high-strength low-quality of aluminium alloy plate, intensity and ductility and structural iron are close, density only is 1/3 of steel.Therefore, the present invention uses the aluminium alloy plate reinforced concrete structure, can improve the safety of structure under the situation that does not significantly increase dead load, guarantees ductility preferably simultaneously.
(2), have excellent Corrosion Protection: when aluminium alloy plate was exposed in the air, its surface can generate fine and close oxide film rapidly, possesses fabulous Corrosion Protection.
(3), have cost performance preferably: the price of aluminium alloy plate Unit Weight is about 3 times of structural iron at present.Therefore, aluminium alloy plate is considered as material a kind of costliness, that be not suitable for engineering structures by a large amount of Structural Engineering practitioners.Yet, the required satisfied function (being safety, applicability and life requirement) of structure and the complexity of construction work, the material price that causes Unit Weight is the most important index of choice structure material absolutely not.With the flexural member is example, as only considering bearing capacity and deformation performance, adopts the material cost of aluminium alloy structure to maintain an equal level with steel work approximately.As consider the influence of factors such as processing, speed of application and section optimal, the overall cost of aluminium alloy structure has been better than steel work.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.In conjunction with the advantage of above-mentioned aluminum alloy materials at aspects such as mechanical property, Corrosion Protections, aluminium alloys is reinforced and is compared with other reinforcement means, has cost performance preferably on average price.
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 reinforcement means is characterized in that, comprises step:
A, the reinforcing area surface finish cleaning of reinforced concrete structure body is smooth;
B, cementing agent is spread upon the reinforcing area surface and the aluminium alloy plate surface of reinforced concrete structure body, and aluminium alloy plate is sticked on the reinforcing area surface of described reinforced concrete structure body;
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 reinforcement means according to claim 1 is characterized in that, the reinforcing area surface of described reinforced concrete structure body is the plane, and the described aluminium alloy plate that adapts with it is a plate armature.
3. reinforced concrete structure reinforcement means according to claim 1 is characterized in that, also comprises step between described steps A and the B:
A1, the dust on the reinforcing area of described reinforced concrete structure body surface and the described aluminum alloy plate materials is cleaned out.
4. reinforced concrete structure reinforcement means 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 reinforcement means 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 reinforcement means according to claim 1 is characterized in that, described cementing agent adopts modified epoxy resin adhesive.
7. a reinforced concrete structure comprises the reinforced concrete structure body, it is characterized in that, also comprises aluminium alloy plate, and described aluminium alloy plate is fixed on the reinforcing area surface of described reinforced concrete structure body.
8. reinforced concrete structure according to claim 7 is characterized in that, the reinforcing area surface of described reinforced concrete structure body is the plane, and the described aluminium alloy plate that adapts with it is a plate armature.
9. reinforced concrete structure according to claim 7, it is characterized in that, be provided with adhesive layer between the reinforcing area of described reinforced concrete structure body surface and described aluminium alloy plate, described aluminium alloy plate is connected with the surperficial stickup of the reinforcing area of described reinforced concrete structure body by adhesive layer.
10. reinforced concrete structure according to claim 9 is characterized in that, described adhesive layer is the modified epoxy resin adhesive layer.
CN201010188851A 2010-05-24 2010-05-24 Reinforced concrete structure and reinforcement method Active CN101852023B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105863288A (en) * 2016-04-09 2016-08-17 华南理工大学 Fiber sheet-steel plate combination reinforced RC structure and method and application thereof
CN112854803A (en) * 2021-01-11 2021-05-28 张东林 Reinforced concrete building bonded steel repairing and reinforcing robot
CN112878723A (en) * 2021-01-11 2021-06-01 张东林 Bonded steel repairing and reinforcing method for reinforced concrete building

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1231371A (en) * 1999-04-20 1999-10-13 日本Sho-Bond建设株式会社 Method for reinforcing concrete buildings
WO2002036902A1 (en) * 2000-10-30 2002-05-10 Maintenance Professional Co., Ltd. Composite panel for repairing, reinforcing con'c body and method of using the same
CN101033646A (en) * 2006-10-19 2007-09-12 上海大学 Reinforcement method for reinforced concrete beam plate
JP2008045320A (en) * 2006-08-14 2008-02-28 Faibekkusu Kk Concrete member reinforcing method and reinforcing structure
CN101457592A (en) * 2008-11-20 2009-06-17 江苏广宇建设集团有限公司 Concrete structure affixing steel plate reinforcement method
CN101672109A (en) * 2009-09-22 2010-03-17 上海维固工程实业有限公司 Construction method for spraying polymer mortar aiming at structural strengthening
CN201771201U (en) * 2010-05-24 2011-03-23 深圳大学 Reinforced concrete structure

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1231371A (en) * 1999-04-20 1999-10-13 日本Sho-Bond建设株式会社 Method for reinforcing concrete buildings
WO2002036902A1 (en) * 2000-10-30 2002-05-10 Maintenance Professional Co., Ltd. Composite panel for repairing, reinforcing con'c body and method of using the same
JP2008045320A (en) * 2006-08-14 2008-02-28 Faibekkusu Kk Concrete member reinforcing method and reinforcing structure
CN101033646A (en) * 2006-10-19 2007-09-12 上海大学 Reinforcement method for reinforced concrete beam plate
CN101457592A (en) * 2008-11-20 2009-06-17 江苏广宇建设集团有限公司 Concrete structure affixing steel plate reinforcement method
CN101672109A (en) * 2009-09-22 2010-03-17 上海维固工程实业有限公司 Construction method for spraying polymer mortar aiming at structural strengthening
CN201771201U (en) * 2010-05-24 2011-03-23 深圳大学 Reinforced concrete structure

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105863288A (en) * 2016-04-09 2016-08-17 华南理工大学 Fiber sheet-steel plate combination reinforced RC structure and method and application thereof
CN112854803A (en) * 2021-01-11 2021-05-28 张东林 Reinforced concrete building bonded steel repairing and reinforcing robot
CN112878723A (en) * 2021-01-11 2021-06-01 张东林 Bonded steel repairing and reinforcing method for reinforced concrete building
CN112854803B (en) * 2021-01-11 2022-11-08 贵州华亿建材有限公司 Reinforced concrete building bonded steel repairing and reinforcing robot

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