CN105715070B - A kind of carbon fiber strips reinforced member and its implementation - Google Patents
A kind of carbon fiber strips reinforced member and its implementation Download PDFInfo
- Publication number
- CN105715070B CN105715070B CN201610164869.9A CN201610164869A CN105715070B CN 105715070 B CN105715070 B CN 105715070B CN 201610164869 A CN201610164869 A CN 201610164869A CN 105715070 B CN105715070 B CN 105715070B
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- China
- Prior art keywords
- carbon fiber
- fiber strips
- structural member
- strips
- winding
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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.)
- Expired - Fee Related
Links
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 153
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 153
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 153
- 238000004804 winding Methods 0.000 claims abstract description 27
- 238000012545 processing Methods 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 11
- 239000000835 fiber Substances 0.000 claims description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 14
- 229910052799 carbon Inorganic materials 0.000 claims description 14
- 238000009826 distribution Methods 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 abstract description 14
- 230000001070 adhesive effect Effects 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 12
- 230000008602 contraction Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 16
- 239000003822 epoxy resin Substances 0.000 description 7
- 229920000647 polyepoxide Polymers 0.000 description 7
- 239000011083 cement mortar Substances 0.000 description 6
- 230000002787 reinforcement Effects 0.000 description 6
- 239000004567 concrete Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000011151 fibre-reinforced plastic Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- E04G2023/0251—Increasing or restoring the load-bearing capacity of building construction elements by using fiber reinforced plastic elements
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Moulding By Coating Moulds (AREA)
- Reinforcement Elements For Buildings (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The present invention relates to a kind of carbon fiber strips reinforced member, it is characterised in that：Including structural member and the carbon fiber strips for being coated on the structural member outer surface, the carbon fiber strips spiral winding presses on the outer surface of the structural member.Also provide a kind of implementation method of carbon fiber strips reinforced member, it is characterised in that comprise the following steps：1) head end of carbon fiber strips is wound processing；2) carbon fiber strips press processing along the winding of structural member axial screw；3) tail end of carbon fiber strips carries out entanglement processing.The present invention plays the purpose of reinforced member by using carbon fiber strips clad structure part, the head end of carbon fiber strips and tail end are carried out respectively to be pressed into winding and entanglement processing, realize the purpose of auto-lock anchorage, need not be using flammable inflammable adhesive as link, make carbon fiber strips under high temperature, can still have preferable effect of contraction to structural member, there is the long and green beneficial effect of high temperature resistant, service life.
Description
Technical field
The invention belongs to technical field of buildings, especially a kind of carbon fiber strips reinforced member and its implementation.
Background technology
From last century China's building trade with economical favourable and extensive development so far, large quantities of houses use close to design
The time limit, simultaneously because design, the imperfection of construction technology in the past, economy, supervises the problems such as horizontal Shortcomings, cause China's mesh
Preceding substantial amounts of building construction may face serious quality security problem.The measure of reconstruction is all pushed over, not only runs counter to society
Sustainable development demand, and economizing type environmental protection concept, also it is unfavorable for the needs of China's modernization construction.
Fibre reinforced composites (Fibre-Reinforced Polymer composites, abbreviation FRP) due to
The features such as high-strength, lightweight, anti-fatigue performance are good, designability is strong, physical dimension is stable, and rotproofness is high under normal temperature, tied in building
Structure is applied increasingly extensive in reinforcing.Wherein, what reinforcement application was most wide is the carbon fibre reinforced composite with very high intensity
(Carbon Fibre-Reinforced Polymer composites, abbreviation CFRP), it is by carbon fiber and a certain proportion of
Auxiliary resin matrix is made.
At present, the method for carbon fiber reinforcement building structure is typically, after infiltrating carbon fiber using adhesive materials such as resins, then
The adhesive materials such as construction structure glue are affixed to structural elements surface, and reinforcement and strengthening is carried out to structural elements, or produce new
Combining structure component.Wherein, epoxy resin is the most frequently used a kind of fiber-based material and adhesive, is added at present with carbon fiber
The method of fixing structure component is bonded using this material mostly.Epoxy resin belongs to epoxy type organic, if it is contour to run into fire
Tender feeling condition, when temperature is higher than its glass transition temperature, adhesive is decomposed or softened, its adhesion strength, tensile strength, stretching
Shearing strength drastically reduces, and seriously undermines between it transmits fiber and shears and prevent the ability of fiber flexing, causes CFRP materials
The reduction of intensity and rigidity, while weaken cohesive force between CFRP materials and concrete, cause CFRP materials to peel off and exit
Work, finally destroys structure.Research shows that, when temperature is more than 120 DEG C, adhesive shearing strength during normal temperature than weakening
80%, it is difficult to ensure the collaborative work between carbon fiber and the cooperation and filament of concrete, have a strong impact on binding effect.
In addition, using epoxy resin also have one it is obvious the shortcomings that, this material has inflammability, if in no any safeguard measure
And be fully exposed in the environment of hot-air, when temperature reaches 450 DEG C, epoxy resin can start to burn, while discharge black
Cigarette and toxic gas, produce secondary pollution.
The content of the invention
The invention aims to solve in carbon fiber reinforcing concrete structure part, the adhesive of carbon fiber and structural member is bonded
And fiber-based material fails under the high temperature actions such as fire, the problem of easily causing structural bearing capacity and durability, there is provided one
Kind of high temperature resistant, service life is long and green carbon fiber strips reinforced member and its implementation.
The purpose of the present invention can reach by the following technical programs：
A kind of carbon fiber strips reinforced member, it is characterised in that：Including structural member and it is coated on the structural member appearance
The carbon fiber strips in face, the carbon fiber strips spiral winding press on the outer surface of the structural member.
As a kind of preferable scheme, the head end winding of the carbon fiber strips is overlapping to be no less than 3 circles.
As a kind of preferable scheme, the tail end of the carbon fiber strips is passed through no less than the five circle carbon fiber strips,
Form tangled structure.
It is described after the carbon fiber strips tail end often encloses the carbon fiber strips through one as a kind of preferable scheme
Carbon fiber strips winding one is enclosed onto structural member.
As a kind of preferable scheme, the radial direction of the carbon fiber strips is not more than 10 degree with the angle of horizontal plane.
As a kind of preferable scheme, the structural member is beam or post.
The present invention also provides a kind of implementation method of carbon fiber strips reinforced member, it is characterised in that including following step
Suddenly：
1) head end of carbon fiber strips is wound processing
Overlap wrapping is carried out along the circumferencial direction of structural member after the head end of ribbon is tilted, by the head end of carbon fiber strips
Press in carbon fiber strips；
2) carbon fiber strips press processing along the winding of structural member axial screw
Carbon fiber strips are pressed in structural member outer surface along the winding of structural member axial screw, and adjacent every two circles carbon is fine
Tie up band between and column distribution；
3) tail end of carbon fiber strips carries out entanglement processing
The tail end of carbon fiber strips is passed through no less than the 5 circle carbon fiber strips, often passed through in carbon fiber strips tail end
After one circle carbon fiber strips, on the circle of carbon fiber strips winding one to structural member, multilayer tangled structure is formed.
As a kind of preferable scheme, the tilt length of the head end of the carbon fiber strips is not less than 100mm.
As a kind of preferable scheme, the head end winding of the carbon fiber strips is overlapping to be no less than 3 circles.
As a kind of preferable scheme, the radial direction of the carbon fiber strips is not more than 10 degree with the angle of horizontal plane.
As a kind of preferable scheme, the carbon fiber strips are impregnated with cement mortar, or cement mortar, or epoxy resin.
The present invention has beneficial effect prominent as follows：
1st, the present invention is coated to structural member by using the self-locking fixing knot structure of carbon fiber strips and plays reinforcing knot
The purpose of component, the head end of carbon fiber strips and tail end are carried out being pressed into winding respectively and entanglement is handled, realizes auto-lock anchorage
Purpose, still can be to structural member without, as linking, making carbon fiber strips under high temperature using flammable inflammable adhesive
With preferable effect of contraction, solve cohesive carbon fiber and structural member adhesive and fiber-based material in high temperature such as fire
Effect is lower to fail, and easily causes structural bearing capacity and declines and the problem of durability weakens.And due to carbon fiber strips and structure
Impermanency bonds between part, is reused after detachable, saves the input cost of material, has high temperature resistant, service life
The characteristics of long, green and easy to use.
2nd, when structural member itself is by xial feed, it laterally outwardly expands the present invention, due to coagulation inside structural member
The dilatancy of soil material is more than the deformation of external carbon band, and external carbon band will be tauted and be close to structural member,
So as to play the effect of restrained reinforcement structural member.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the embodiment 1 of a kind of carbon fiber strips reinforced member of the present invention and its implementation；
Fig. 2 is the structural representation of the embodiment 2 of a kind of carbon fiber strips reinforced member of the present invention and its implementation.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Embodiment 1
As shown in figure 1, the present embodiment is related to a kind of carbon fiber strips reinforced member, it is characterised in that：Including structural member
With the carbon fiber strips 1 for being coated on the structural member outer surface, the spiral winding of carbon fiber strips 1 presses in the structural member
Outer surface on.The structural member is beam or post.
The present invention is coated to structural member by using the self-locking fixing knot structure of carbon fiber strips 1 and plays ruggedized construction
The purpose of part, without, as linking, making carbon fiber strips 1 under high temperature, carbon-fibre strips using flammable inflammable adhesive
Band 1 can still have preferable effect of contraction to structural member, solve the adhesive and fiber base of cohesive carbon fiber and structural member
Body material fails under the high temperature actions such as fire, easily cause structural bearing capacity decline and durability weaken the problem of.And
When structural member itself is by xial feed, it laterally outwardly expands, because the dilatancy of structural member inner concrete material is big
In the deformation of external carbon band 1, external carbon band 1 will be tauted and be close to structural member, so as to play restrained reinforcement
The effect of structural member.
The winding of head end 11 of the carbon fiber strips 1 overlaps with least 3 circles, and the tilt length of head end 11 is not less than
100mm, by the way that the head end 11 of carbon fiber strips 1 is pressed on the inner ring of carbon fiber strips 1 of winding so that in building knot
When component itself is by xial feed, carbon fiber strips 1 are tauted without producing sliding and loosening, and ensure that carbon fiber strips
The effect of contraction of 1 pair of structural member.
The tail end 12 of the carbon fiber strips 1 is passed through no less than the 5 circle carbon fiber strips 1, forms tangled structure 2.More
Good, after the tail end 12 of carbon fiber strips 1 often encloses the carbon fiber strips 1 through one, the circle of the winding of carbon fiber strips 1 one
Onto structural member.After carbon fiber strips 1 are coated on structural member completely, in order to prevent in fabric structure part itself by axle
Sliding is produced to carbon fiber strips during load 1 and is loosened, and the tail end 12 of carbon fiber strips 1 is carried out with multi-turn carbon fiber strips 1
Tangle, play a part of fastening carbon fiber strips 1.
During carbon fiber strips 1 are wound, in order that can mutually cling to knot between two adjacent rings carbon fiber strips 1
On component, and give full play to the unidirectional ring tensile property of fibrous ribbon 1.The radial direction and horizontal plane of the carbon fiber strips 1
Angle be less than 10 degree.
The problems such as considering the construction, carrying and applied mental of structural member, the carbon fiber strips 1 are wettable cement mortar,
Or cement mortar, or epoxy resin.
The tail end of the carbon fiber strips 1, which is provided with, to tangle, and when situation about sliding occurs in the tail end of carbon fiber strips 1, twines
Knot plays a part of stopping and positioned.
The present embodiment further relates to a kind of implementation method of the reinforced member of carbon fiber strips 1, it is characterised in that including following
Step：
1) head end 11 of carbon fiber strips 1 is wound processing
Overlap wrapping at least 3 is carried out after the head end 11 of ribbon is tilted along the circumferencial direction of structural member to enclose, by carbon fiber
The head end 11 of band 1 presses in carbon fiber strips 1；The inclination angle of the head end 11 of the carbon fiber strips 1 is described less than 10 degree
Carbon fiber strips 1 are impregnated with cement mortar, or cement mortar, or epoxy resin.
The step is by the way that the head end 11 of carbon fiber strips 1 is pressed on the inner ring of carbon fiber strips 1 of winding so that
When fabric structure part itself is by xial feed, carbon-fibre strips are tauted without producing sliding and loosening, and ensure that carbon fibre
Tie up the binding effect of band 1.
2) carbon fiber strips 1 press processing along the winding of structural member axial screw
Carbon fiber strips 1 are pressed in structural member outer surface, and adjacent every two circles carbon along the winding of structural member axial screw
Between fibrous ribbon 1 and column distribution；The radial direction of the carbon fiber strips 1 is not more than 10 degree with the angle of horizontal plane；
The method that the step uses the clad structure part of carbon fiber strips 1, connect without being used as using flammable inflammable adhesive
Knot acts on so that under high temperature, carbon fiber strips 1 can still have preferable effect of contraction to structural member, solve viscous
The adhesive and fiber-based material of knot carbon fiber and structural member fail under the high temperature actions such as fire, easily cause structural bearing
The problem of power declines and durability weakens.And when structural member itself is by xial feed, it laterally outwardly expands, due to knot
The dilatancy of component inside concrete material is more than the deformation of external carbon band 1, and external carbon band 1 will be tauted
And it is close to structural member, so as to play the effect of restrained reinforcement structural member.
3) tail end 12 of carbon fiber strips 1 carries out entanglement processing
The tail end 12 of carbon fiber strips 1 is passed through no less than the 5 circle carbon fiber strips 1, in the tail end 12 of carbon fiber strips 1
After often enclosing carbon fiber strips 1 through one, on the circle of the winding of carbon fiber strips 1 one to structural member, multilayer tangled structure 2 is formed.
The step is after carbon fiber strips 1 are coated on structural member completely, in order to prevent experiencing certainly in fabric structure part
Sliding is produced to carbon fiber strips during xial feed 1 and is loosened, by by the tail end 12 of carbon fiber strips 1 and multi-turn carbon-fibre strips
Band 1 is tangled, and plays a part of fastening carbon fiber strips 1.The present invention, will during the clad structure part of carbon fiber strips 1
The head end and tail end of carbon fiber strips 1 carry out being pressed into winding and entanglement processing respectively, the purpose of auto-lock anchorage are realized, without using
Flammable inflammable adhesive is as link, you can the effect reinforced to structural member.
Embodiment 2
The present embodiment is the basis for having embodiment 1, as shown in Fig. 2 during spiral wound structural member, works as carbon fiber
When band 1 falls short of, as the improvement to carbon fiber strips 1, as shown in Fig. 2 the tail end 32 in first carbon fiber strips 3 enters
After the processing of row step 3), the head end 41 of the tail end 32 of first carbon fiber strips 3 and Article 2 carbon fiber strips 4 is overlapped,
And will Article 2 carbon fiber strips 4 head end tilt after along the circumferencial direction of structural member carry out overlap wrapping no less than 3 circles, by the
The tail end 32 of one carbon fiber strips 3 and the head end 41 of Article 2 carbon fiber strips 4 press in Article 2 carbon fiber strips 4.
The tail ends 32 of first carbon fiber strips 3 being pressed into second carbon fiber strips 4 and Article 2 carbon fiber strips 4
The length of head end 41 is not less than 100mm.
This method forms first and fastens knot again by the way that the tail end 32 of first carbon fiber strips 3 is first carried out into entanglement processing
Structure, then the head end 41 of tail end 32 and Article 2 carbon fiber strips 4 is overlapped again, by the tail end 32 of first carbon fiber strips 3
In the head end 41 for pressing Article 2 carbon fiber strips 4, the second heavy fastening structure is formed, maximizes and ensures first carbon-fibre strips
With 3 tightness, prevent that the first carbon fiber strips 3 produce sliding and pine when fabric structure part itself is by xial feed
It is dynamic, realize being fastenedly connected between two carbon fiber strips.
The above disclosed power for being only a kind of preferred embodiment of the present invention, the present invention can not being limited with this certainly
Sharp scope, therefore the equivalent variations made according to the claims in the present invention, still belong to the scope that the present invention is covered.
Claims (8)
- A kind of 1. carbon fiber strips reinforced member, it is characterised in that：Including structural member and it is coated on the structural member outer surface Carbon fiber strips, the carbon fiber strips spiral winding presses on the outer surface of the structural member；The tail end of the carbon fiber strips is passed through no less than the 5 circle carbon fiber strips, forms tangled structure；After the carbon fiber strips tail end often encloses the carbon fiber strips through one, the circle of carbon fiber strips winding one arrives structure On part.
- A kind of 2. carbon fiber strips reinforced member according to claim 1, it is characterised in that：The carbon fiber strips Head end winding is overlapping to be no less than 3 circles.
- A kind of 3. carbon fiber strips reinforced member according to claim 1, it is characterised in that：The carbon fiber strips Radially the angle with horizontal plane is not more than 10 degree.
- A kind of 4. carbon fiber strips reinforced member according to any one of claims 1 to 3, it is characterised in that：The structure Part is beam or post.
- 5. a kind of implementation method of carbon fiber strips reinforced member, it is characterised in that comprise the following steps：1) head end of carbon fiber strips is wound processingOverlap wrapping is carried out along the circumferencial direction of structural member after the head end of ribbon is tilted, the head end of carbon fiber strips is pressed Enter in carbon fiber strips；2) carbon fiber strips press processing along the winding of structural member axial screwCarbon fiber strips are pressed in structural member outer surface, and adjacent every two circles carbon-fibre strips along the winding of structural member axial screw Band between and column distribution；3) tail end of carbon fiber strips carries out entanglement processingThe tail end of carbon fiber strips is passed through no less than the 5 circle carbon fiber strips, in carbon fiber strips tail end often through a circle After carbon fiber strips, on the circle of carbon fiber strips winding one to structural member, multilayer tangled structure is formed.
- A kind of 6. implementation method of carbon fiber strips reinforced member according to claim 5, it is characterised in that：The carbon The tilt length of the head end of fibrous ribbon is not less than 100mm.
- A kind of 7. implementation method of carbon fiber strips reinforced member according to claim 5, it is characterised in that：The carbon The head end winding of fibrous ribbon is overlapping to be no less than 3 circles.
- A kind of 8. implementation method of carbon fiber strips reinforced member according to claim 5, it is characterised in that：The carbon The radial direction of fibrous ribbon is not more than 10 degree with the angle of horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610164869.9A CN105715070B (en) | 2016-03-22 | 2016-03-22 | A kind of carbon fiber strips reinforced member and its implementation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610164869.9A CN105715070B (en) | 2016-03-22 | 2016-03-22 | A kind of carbon fiber strips reinforced member and its implementation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105715070A CN105715070A (en) | 2016-06-29 |
| CN105715070B true CN105715070B (en) | 2017-11-17 |
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| CN106149980A (en) * | 2016-08-19 | 2016-11-23 | 广东工业大学 | Embedded wet viscous FRP band reinforced steel concrete rod structure and reinforcement means |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN205713196U (en) * | 2016-03-22 | 2016-11-23 | 广东工业大学 | A kind of carbon fiber strips reinforced member |
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| JP4087827B2 (en) * | 2004-09-16 | 2008-05-21 | 三井住友建設株式会社 | Bridge pier reinforcement method |
| JP4638850B2 (en) * | 2006-09-05 | 2011-02-23 | Ｊｘ日鉱日石エネルギー株式会社 | Method for reinforcing existing structures with carbon fiber |
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