CN106703436A - Carbon fiber sheet strengthened concrete structure - Google Patents
Carbon fiber sheet strengthened concrete structure Download PDFInfo
- Publication number
- CN106703436A CN106703436A CN201710146355.5A CN201710146355A CN106703436A CN 106703436 A CN106703436 A CN 106703436A CN 201710146355 A CN201710146355 A CN 201710146355A CN 106703436 A CN106703436 A CN 106703436A
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- China
- Prior art keywords
- layer
- carbon fiber
- structures
- stainless steel
- carbon
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- 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.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
Abstract
The invention discloses a carbon fiber sheet strengthened concrete structure which comprises a concrete structure base layer and a carbon fiber layer. A lightweight concrete repair layer containing a steel wire mesh is laid on a to-be-strengthened surface of the concrete structure base layer; the carbon fiber layer is of a composite layer structure formed by a carbon fiber sheet soaked with epoxy resin and PVC (polyvinyl chloride) wrapping the carbon fiber sheet; the carbon fiber layer is attached to the lightweight concrete repair layer through an adhesion agent; the structure further comprises two stainless steel plates which are arranged at two ends of the carbon fiber layer and sequentially penetrate the stainless steel plates, the carbon fiber layer, the repair layer and the base layer to be fixed on the structure. By the arrangement, the carbon fiber sheet can be firmly attached to the structure and are less prone to breakage and stripping.
Description
Technical field
The invention belongs to reinforced concrete work field, and in particular to a kind of carbon cloth reinforced concrete is constructed
Thing.
Background technology
Due to the particularity of Beibu Bay, guangxi area affiliated area, engineering structure system (including Oversea bridge, coastal build
Build, harbour sea wall etc.) face the erosion such as typhoon, storm tide, sea salt, fouling organism for a long time, to coastal engineering safety of structure shadow
Ring very big, add the irrationality that people are used engineering structure, often make engineering structure Local Damaged, crack occur causes
Steel bar corrosion, reduces the service life of reinforced concrete structure, and the result of long-term corrosion will result in reinforcing bar fracture and make knot
Structure is destroyed.In general, reinforced concrete work is once destroyed, and the Loss of Life and property for being brought will be huge
, far-reaching and difficult to the appraisal is even more with the influence of society to national economy.
At present, reinforced concrete structures typically carry out repairing and reinforcing using carbon fibre reinforced plastic method for strengthening (CFRP),
Carbon cloth is pasted on concrete surface using resinae adhesive, to improve the bearing capacity of component, so as to reach to structure
The purpose of part reinforcing.CFRP Sheet Strengthening Method is according to structural elements Calculation and Analysis of Force result and stress characteristic, using matching somebody with somebody
Carbon fiber is pasted on the outside corresponding site of concrete component (damaged structure) that intensity is unsatisfactory for force request by set resin, to reach
A kind of method for reinforcing of requirement for bearing capacity is met to component.Its reinforcement principle is incited somebody to action using the shear strength of its auxiliary resin
The load of concrete component load-bearing passes to carbon fiber, makes rear sticking carbon fiber and the common bearing load of former reinforced concrete member
Active force.Experiment shows：In Carbon Fiber Concrete Composites structure, two kinds of stress of material are mainly by interface agglutination layer
It is bonded effect to transmit, the destruction of component generally begins at the destruction of glued layer.With being continuously increased for load, bonding interface stress
Branch and peak gradually change, inside concrete tension also constantly increases, when load increases to close to bonding
During the load of intensity, the bonding interface at concrete separation internally will be subject to the compound work of interface normal stress and in-plane stress
With in the presence of this combined stress, carbon cloth peels off the concrete that adhesive tape shallow-layer since the position, works as load
When reaching failing load, because the effective area being bonded is reduced, just there is disposable stripping damage at interface, i.e. destruction is
The instantaneous brittle break for occurring.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of carbon cloth reinforced concrete structures, make carbon fiber
Cloth firmly can be bonded on works, it is not easy to fracture occurred and peeled off.
The technical scheme that the present invention is provided is carbon cloth reinforced concrete structures, including concrete structures basic unit
And carbon fiber layer, the concrete structures basic unit treats that one layer of lightweight concrete for including steel wire is equipped with reinforcing face to be repaiied
Mend layer；The complex layered knot that the carbon fiber layer is made up of the carbon cloth and the PVC that is coated of infiltration epoxy resin
Structure；The carbon fiber layer is pasted onto in lightweight concrete repair layer by adhesive；The structures also include two blocks of steel plates, institute
The two ends that two blocks of steel plates are arranged on carbon fiber layer are stated, and by sequentially passing through steel plate, carbon fiber layer, repair layer and the bolt of basic unit
It is fixed on structures.
Concrete structures basic unit treat one layer of lightweight concrete repair layer for being embedded with steel wire is laid on reinforcing face,
The consolidation effect of Local Damaged structure can be improved, the attachment force of carbon cloth and structures basic unit can be greatly improved again,
Avoid because concrete base layer finish not enough causes the carbon fibre cloth layer cannot to be effectively bonded in structures basic unit.
The straticulate structure that carbon fiber layer is made up of the carbon cloth and the PVC that is coated of infiltration epoxy resin；
Its preparation method is：By carbon cloth infiltration in the epoxy, take out, the carbon cloth bag of epoxy resin will be infiltrated with PVC
Cover, hot pressing so that PVC is combined into one with carbon cloth, form straticulate structure.Because the melt temperature of PVC is high
In the glass transition temperature of epoxy resin, control hot pressing temperature PVC melt temperature and glass epoxy inversion temperature it
Between so that PVC and carbon fiber consolidation are integral.The toughness of the carbon fiber layer after Combined Processing, wearability and skid resistance are significantly carried
Height, and then the adherence force of carbon fibre cloth layer and structures can be improved, prevent the landing of carbon fibre cloth layer.
Stainless steel plate is set at the two ends of carbon fiber layer, carbon cloth can be fixedly secured in structures basic unit so that
Carbon cloth is bonding with structures basic unit more to be consolidated, and effectively prevents carbon cloth from coming off, to improve the use longevity of structures
Life.
The structures also include anticorrosive coat；The waterproof layer is coated on carbon fiber layer, and two pieces of stainless steel plates set
Put at the two ends of waterproof layer, and consolidated by sequentially passing through the bolt of stainless steel plate, waterproof layer, carbon fiber layer, repair layer and basic unit
It is scheduled on structures.One layer of waterproof layer is coated on carbon cloth surface, carbon cloth can be effectively reduced by external environment condition
Influence, extends service life of structure.
The waterproof layer is polyurethane water-proof layer.The thickness of the polyurethane water-proof layer is 1~2mm.
The structures also include anticorrosion mortar layer；The anticorrosion mortar layer is coated on waterproof layer, and described two pieces stainless
Steel plate is arranged on the two ends of waterproof layer, and sequentially passes through stainless steel plate, anticorrosion mortar layer, waterproof layer, carbon by stainless steel bolt
Fibrage, repair layer and basic unit are bolted on structures.One layer of screed is coated on the outer surface of waterproof layer, can be entered
One step protects carbon cloth not corroded by external environment, it is to avoid carbon cloth comes off, to improve the service life of structures.
The thickness of the screed is 2~5mm.
Compared with prior art, concrete structures simple structure of the invention, fastening effect is good, can effectively anti-blocking fibre
Wei Bu comes off from structures basic unit, so as to substantially prolongs the service life of concrete structures.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
In figure marked as：1st, concrete structures basic unit；2nd, lightweight concrete repair layer；3rd, carbon fiber layer；4th, stainless steel
Plate；5th, stainless steel bolt；6th, waterproof layer；7th, anticorrosion mortar layer；8th, carbon cloth；9、PVC.
Specific embodiment
It is of the present invention with carbon cloth reinforced concrete structures, as shown in figure 1, including concrete structures base
Layer 1 and carbon fiber layer 3, the concrete structures basic unit 1 treats that one layer of lightweight for including steel wire is equipped with reinforcing face mixes
Solidifying soil repair layer 2；The carbon fiber layer 3 is made up of the carbon cloth 8 and the PVC 9 that is coated of infiltration epoxy resin
Straticulate structure；The carbon fiber layer 3 is pasted onto in lightweight concrete repair layer 2 by adhesive；
The structures also include two pieces of stainless steel plates 4, waterproof layer 6 and anticorrosion mortar layer 7, and the waterproof layer 6 is coated in
On carbon fiber layer 3；The anticorrosion mortar layer 7 is coated on waterproof layer 6；Two pieces of stainless steel plates 4 are arranged on anticorrosion mortar layer 7
Two ends, and by stainless steel bolt sequentially pass through stainless steel plate 4, anticorrosion mortar layer 7, waterproof layer 6, carbon fiber layer 3, repair layer
2 and the bolt 5 of basic unit 1 be fixed on structures；
The waterproof layer 6 is polyurethane water-proof layer, and the thickness of the polyurethane water-proof layer is 1~2mm；
The thickness of the screed 7 is 2~5mm.
Claims (6)
1. carbon cloth reinforced concrete structures, including concrete structures basic unit and carbon fiber layer, it is characterised in that：Institute
State concrete structures basic unit treat one layer of lightweight concrete repair layer for including steel wire is equipped with reinforcing face；The carbon is fine
Tie up the straticulate structure that layer is made up of the carbon cloth of infiltration epoxy resin and the PVC for being coated；The carbon fiber
Layer is pasted onto in lightweight concrete repair layer by adhesive；The structures also include two pieces of stainless steel plates, and described two pieces are not
Rust steel plate is arranged on the two ends of carbon fiber layer, and by stainless steel bolt sequentially pass through stainless steel plate, carbon fiber layer, repair layer and
Basic unit is fixed on structures.
2. carbon cloth reinforced concrete structures according to claim 1, it is characterised in that：The structures are also wrapped
Include waterproof layer；The waterproof layer is coated on carbon fiber layer；Two blocks of steel plates are arranged on the two ends of waterproof layer, and by stainless
Steel bolt sequentially passes through stainless steel plate, waterproof layer, carbon fiber layer, repair layer and basic unit and is fixed on structures.
3. the concrete structures that carbon fiber cloth according to claim 2 is reinforced, it is characterised in that：The waterproof layer is poly- ammonia
Ester waterproof layer.
4. carbon cloth reinforced concrete structures according to claim 3, it is characterised in that：The polyurethane water-proof
The thickness of layer is 1~2mm.
5. carbon cloth reinforced concrete structures according to claim 2, it is characterised in that：The structures are also wrapped
Include anticorrosion mortar layer；The screed is coated on waterproof layer；Two pieces of stainless steel plates are arranged on the two ends of anticorrosion mortar layer,
And stainless steel plate, anticorrosion mortar layer, waterproof layer, carbon fiber layer, repair layer and basic unit are sequentially passed through by stainless steel bolt fix
On structures.
6. carbon cloth reinforced concrete structures according to claim 5, it is characterised in that：The anticorrosion mortar layer
Thickness be 2~5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710146355.5A CN106703436A (en) | 2017-03-13 | 2017-03-13 | Carbon fiber sheet strengthened concrete structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710146355.5A CN106703436A (en) | 2017-03-13 | 2017-03-13 | Carbon fiber sheet strengthened concrete structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106703436A true CN106703436A (en) | 2017-05-24 |
Family
ID=58918265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710146355.5A Pending CN106703436A (en) | 2017-03-13 | 2017-03-13 | Carbon fiber sheet strengthened concrete structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106703436A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107780596A (en) * | 2017-09-29 | 2018-03-09 | 马鞍山十七冶工程科技有限责任公司 | The anchor structure system and its construction method of a kind of FRP cloth and structural concrete |
| CN110894754A (en) * | 2018-09-12 | 2020-03-20 | 上海天补材料科技有限公司 | Concrete crack treatment technology |
| CN111455875A (en) * | 2020-03-16 | 2020-07-28 | 中铁大桥科学研究院有限公司 | Method for repairing frost cracking of newly-built concrete beam body |
| CN111809911A (en) * | 2020-07-13 | 2020-10-23 | 中国二十二冶集团有限公司 | Construction method for solving corrosion of reinforcing steel bars at bottom of frame beam |
| CN112482810A (en) * | 2020-11-25 | 2021-03-12 | 李冬杰 | Building engineering carbon fiber reinforced waterproof structure |
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| KR20080111664A (en) * | 2007-06-19 | 2008-12-24 | 곽주호 | System for structural strengthening using frp(fiber reinforced polymer) with prestressing tap |
| CN203201168U (en) * | 2013-04-09 | 2013-09-18 | 嘉兴职业技术学院 | Carbon fiber plate for restoring and reinforcing historic buildings |
| CN103603509A (en) * | 2013-12-10 | 2014-02-26 | 山东双得利建设科技有限公司 | Carbon fiber fabric reinforced concrete beam and reinforcing method thereof |
| CN104908390A (en) * | 2014-03-13 | 2015-09-16 | 宜兴市宜泰碳纤维织造有限公司 | PVC carbon fiber composite fabric |
| CN205501844U (en) * | 2016-04-08 | 2016-08-24 | 成都本邦路桥新材料有限公司 | Bridge carbon fiber reinforced structure |
| CN205857788U (en) * | 2016-07-21 | 2017-01-04 | 卡本复合材料（天津）有限公司 | A kind of uniform viscose glue bracing means of carbon fiber board |
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2017
- 2017-03-13 CN CN201710146355.5A patent/CN106703436A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080111664A (en) * | 2007-06-19 | 2008-12-24 | 곽주호 | System for structural strengthening using frp(fiber reinforced polymer) with prestressing tap |
| CN203201168U (en) * | 2013-04-09 | 2013-09-18 | 嘉兴职业技术学院 | Carbon fiber plate for restoring and reinforcing historic buildings |
| CN103603509A (en) * | 2013-12-10 | 2014-02-26 | 山东双得利建设科技有限公司 | Carbon fiber fabric reinforced concrete beam and reinforcing method thereof |
| CN104908390A (en) * | 2014-03-13 | 2015-09-16 | 宜兴市宜泰碳纤维织造有限公司 | PVC carbon fiber composite fabric |
| CN205501844U (en) * | 2016-04-08 | 2016-08-24 | 成都本邦路桥新材料有限公司 | Bridge carbon fiber reinforced structure |
| CN205857788U (en) * | 2016-07-21 | 2017-01-04 | 卡本复合材料（天津）有限公司 | A kind of uniform viscose glue bracing means of carbon fiber board |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107780596A (en) * | 2017-09-29 | 2018-03-09 | 马鞍山十七冶工程科技有限责任公司 | The anchor structure system and its construction method of a kind of FRP cloth and structural concrete |
| CN107780596B (en) * | 2017-09-29 | 2020-10-30 | 马鞍山十七冶工程科技有限责任公司 | Anchoring structure system of FRP cloth and structural concrete and construction method thereof |
| CN110894754A (en) * | 2018-09-12 | 2020-03-20 | 上海天补材料科技有限公司 | Concrete crack treatment technology |
| CN111455875A (en) * | 2020-03-16 | 2020-07-28 | 中铁大桥科学研究院有限公司 | Method for repairing frost cracking of newly-built concrete beam body |
| CN111809911A (en) * | 2020-07-13 | 2020-10-23 | 中国二十二冶集团有限公司 | Construction method for solving corrosion of reinforcing steel bars at bottom of frame beam |
| CN112482810A (en) * | 2020-11-25 | 2021-03-12 | 李冬杰 | Building engineering carbon fiber reinforced waterproof structure |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |