CN107829568A - The small-bore FRP pipes reinforced steel concrete rod structure of prefabricated concrete filled and method - Google Patents
The small-bore FRP pipes reinforced steel concrete rod structure of prefabricated concrete filled and method Download PDFInfo
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- CN107829568A CN107829568A CN201711020604.2A CN201711020604A CN107829568A CN 107829568 A CN107829568 A CN 107829568A CN 201711020604 A CN201711020604 A CN 201711020604A CN 107829568 A CN107829568 A CN 107829568A
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- 239000004567 concrete Substances 0.000 title claims abstract description 64
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 22
- 239000010959 steel Substances 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000002093 peripheral effect Effects 0.000 claims abstract description 8
- 239000011376 self-consolidating concrete Substances 0.000 claims abstract description 6
- 102100040287 GTP cyclohydrolase 1 feedback regulatory protein Human genes 0.000 claims description 36
- 101710185324 GTP cyclohydrolase 1 feedback regulatory protein Proteins 0.000 claims description 36
- 239000004744 fabric Substances 0.000 claims description 36
- 239000011230 binding agent Substances 0.000 claims description 31
- 230000001680 brushing effect Effects 0.000 claims description 17
- 239000000758 substrate Substances 0.000 claims description 10
- 239000003822 epoxy resin Substances 0.000 claims description 9
- 229920000647 polyepoxide Polymers 0.000 claims description 9
- 239000011150 reinforced concrete Substances 0.000 claims description 7
- 230000008595 infiltration Effects 0.000 claims description 5
- 238000001764 infiltration Methods 0.000 claims description 5
- 238000005498 polishing Methods 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 238000007596 consolidation process Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 description 8
- 230000002787 reinforcement Effects 0.000 description 7
- 238000000227 grinding Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 230000009466 transformation 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
Abstract
The present invention discloses the small-bore FRP pipes reinforced steel concrete rod structure of prefabricated concrete filled, including several sides close to connected prefabricated components, the prefabricated components inner surface is connected with armored concrete outer surface of column, and multiple prefabricated components sides are horizontal successively to be connected reinforced column outer peripheral face encirclement;The FRP inner tubes of some internal filling self-compacting concretes are axially arranged with inside the prefabricated components along the reinforced column, the present invention also proposes a kind of method using the small-bore FRP pipes reinforced steel concrete rod structure of prefabricated concrete filled.The advantages that relative to prior art, technical solution of the present invention has consolidation effect obvious, and ultimate bearing capacity is strong, and ductility is big, and corrosion resistance is strong and easy for construction.
Description
Technical field
The present invention relates to Strengthening Technique of Reinforced Concrete Structure field, the more particularly to prefabricated small-bore FRP of concrete filled
Pipe reinforced steel concrete rod structure and method.
Background technology
At this stage, a large amount of in-service infrastructure are due to a variety of causes, such as material property degradation, design requirement change, construction
Error etc. is, it is necessary to carry out maintenance and reinforcement.But the maintenance and reinforcement of these infrastructure needs to expend substantial contribution, therefore as each
Significant challenge in state's national economic development.
In European and American developed countries, the investment currently used for building strengthening reconstruction accounted for the 1/2 of national construction industry gross investment with
On, structure or function defect is had for reinforcement and repair according to statistics bureau of the U.S. every year in the estimated data of 2015, the U.S.
The fund of bridge is more than 17,000,000,000 dollars.It should be noted that China also faces the problem of same severe.
Reinforced column is one of main supporting member in concrete structure, and its service behaviour is directly connected to structure peace
Complete and use.When existing reinforced concrete post can not meet requirement for all the foregoing reasons, then need to enter it
Row consolidation process, makes it meet requirement.
Existing Reinforced Concrete Reinforcement method includes section augmentativity, fibre reinforced composites (FRP) winding constraint
Method.Section augmentativity increases the section of former xoncrete structure component using with former component same material (such as reinforcing bar and concrete)
Area, so as to reach a kind of reinforcement means for improving bearing capacity.This reinforcement means is widely used in reinforced concrete structure
Beam, plate, the component such as post, have the advantages that principle it is simple, using it is experienced, stress is reliable, low-cost, but there is also wet
Work operations amount is big, curing cycle is long, dramatically increase dead load, takes the shortcomings of space is more.And FRP winding constraints
Method passes through in the circumferentially wound FRP in concrete column section so that lateral expansion of the concrete in the case of axial compressive force is born by
Constraint, reaches a kind of reinforcement of concrete post method for improving bearing capacity, and the technology has unobvious increase dead load and cut
Face feature, however, this method DeGrain when reinforcing square or rectangular concrete column.
The content of the invention
The main object of the present invention is to propose a kind of prefabricated small-bore FRP pipes reinforced steel concrete post knot of concrete filled
Structure, the present invention also propose the method using the small-bore FRP pipes reinforced steel concrete rod structure of prefabricated concrete filled, it is intended to carry
The reinforcing efficiency of high reinforced column and the ultimate bearing capacity and ductility for improving the reinforced column after reinforcing.
To achieve the above object, the small-bore FRP pipes reinforced steel concrete post of prefabricated concrete filled proposed by the present invention
Structure, including several sides are close to connected prefabricated components, the prefabricated components inner surface and armored concrete outer surface of column
It is connected, multiple prefabricated components sides are horizontal successively to be connected reinforced column outer peripheral face encirclement;The prefabricated structure
The FRP inner tubes of some internal filling self-compacting concretes are axially arranged with inside part along the reinforced column.
Preferably, the external diameter of the FRP inner tubes is 30~80mm, and the prefabricated components thickness is less than or equal to 100mm;Phase
The center spacing of the adjacent FRP inner tubes is more than 2 times of FRP inner tube diameters.
Preferably, it is described prefabricated after multiple prefabricated components inner surfaces are connected with the armored concrete outer surface of column
External surface of structural member is pasted with GFRP cloth.
Preferably, the GFRP cloth is axially pasted on the prefabricated components outer surface along the reinforced column.
Preferably, the GFRP cloth is pasted on the prefabricated components outer surface with ring-type.
Preferably, the GFRP cloth is spirally pasted on the prefabricated components outer surface.
Preferably, the GFRP cloth is pasted on the prefabricated components outer surface with wet bonding.
The present invention also proposes that one kind uses the prefabricated small-bore FRP pipes reinforced steel concrete rod structure of concrete filled
Method, comprise the following steps:
S1:Original reinforced column is checked and repaired, and the reinforced column surface is beaten
Grind and clear up and be smooth;
S2:To the uniform brushwork epoxy resin in reinforced column surface cleared up as substrate;
S3:In the uniform brushing binding agent of the prefabricated components inner surface;
S4:The prefabricated components inner surface is pasted on the armored concrete outer surface of column, bonds both connected;
S5:Binding agent is painted on GFRP cloth surface after natural curing 24 hours, it is fully infiltrated;
S6:In the uniform brushwork epoxy resin in prefabricated components outer surface as substrate, and by the GFRP cloth of infiltration
The prefabricated components outer surface is pasted on, gently presses the GFRP cloth, bubble and unnecessary binding agent are discharged;
S7:Natural curing post-reinforcing component.
Preferably, in the step S3, the prefabricated components side is uniformly painted with binding agent;In the step S4, institute
The portion inner surface for stating prefabricated components is connected with the side bonds close to prefabricated components.
Preferably, in the step S2, the thickness of the epoxy resin of brushing is 1~2mm;In the step S3, brushing
The thickness of binding agent is 1~2mm.
Technical solution of the present invention has advantages below relative to prior art:
In technical solution of the present invention, the cross sectional dimensions of prefabricated components is smaller, is not changing former concrete column contour structures
In the case of, former concrete column can also be reinforced, and the original that can not influence building uses space.Pass through prefabricated structure
Part is pasted on former reinforced column outer peripheral face, hence in so that structural integrity is preferable, and can be utilized compared with limits new and old
The structural behaviour of component.
In technical solution of the present invention, when being reinforced to original concrete column, only need to be by prefabricated components to be bonded side
Formula is pasted on the outer peripheral face of original reinforced column, and by being pasted with GFRP cloth in the outer peripheral face of prefabricated components,
Therefore technical solution of the present invention is not required to carry out formwork and form removal, installation process manual work time are shorter.In addition, prefabricated components energy
Reach intensive in the factory and produced according to strict standard, therefore production cost is reduced on source.
In technical solution of the present invention, parcel is pasted by the prefabricated components outer peripheral face for being pasted on armored concrete outer surface of column
There is GFRP cloth, certain restraining force is produced to prefabricated components by GFRP cloth, laterally should so as to constrain the concrete of prefabricated components
Become, and then cause the concrete three received strength of original reinforced column, have remarkable effect with the raising to bearing capacity.
At the same time, in technical solution of the present invention, the FRP inner tubes in prefabricated components are carried out effectively about to inner concrete
Beam, therefore prefabricated components also have good ductility and durability, can correspondingly cause the reinforced column tool after reinforcing
There are higher bearing capacity and rigidity, so as to be widely used in the reinforced columns such as civil building engineering or science of bridge building
Maintenance and reinforcing.
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
Structure according to these accompanying drawings obtains other accompanying drawings.
Fig. 1 is the transversal of the prefabricated small-bore FRP pipes reinforced steel concrete rod structure embodiment 1 of concrete filled of the present invention
Face figure;
Fig. 2 is the cross-sectional view of the prefabricated components of the embodiment of the present invention 1;
Fig. 3 is the transversal of the prefabricated small-bore FRP pipes reinforced steel concrete rod structure embodiment 2 of concrete filled of the present invention
Face figure;
Fig. 4 is the cross-sectional view of the prefabricated components of the embodiment of the present invention 2.
Drawing reference numeral explanation:
Label | Title | Label | Title |
1 | Reinforced column | 4 | Self-compacting concrete |
2 | Prefabricated components | 5 | GFRP cloth |
3 | FRP inner tubes |
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
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 the part of the embodiment of the present invention, rather than whole embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art obtained under the premise of creative work is not made it is all its
His embodiment, belongs to the scope of protection of the invention.
If it is to be appreciated that related in the embodiment of the present invention directionality instruction (such as up, down, left, right, before and after ...),
Then directionality instruction be only used for explaining relative position relation under a certain particular pose (as shown in drawings) between each part,
Motion conditions etc., if the particular pose changes, directionality instruction also correspondingly changes therewith.
If in addition, relating to the description of " first ", " second " etc. in the embodiment of the present invention, " first ", " second " etc. are somebody's turn to do
Description be only used for describing purpose, and it is not intended that instruction or implying its relative importance or implicit indicating indicated skill
The quantity of art feature.Thus, " first " is defined, the feature of " second " can be expressed or implicitly includes at least one spy
Sign.In addition, the technical scheme between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
Based on enough realizations, the knot of this technical scheme is will be understood that when the combination appearance of technical scheme is conflicting or can not realize
Conjunction is not present, also not within the protection domain of application claims.
Fig. 1 to Fig. 4 is referred to, the present invention proposes a kind of prefabricated small-bore FRP pipes reinforced steel concrete of concrete filled
Rod structure, including several sides are close to connected prefabricated components 2, the inner surface of prefabricated components 2 and the outer surface of reinforced column 1
It is connected, multiple sides of prefabricated components 2 are horizontal successively to be connected the encirclement of the outer peripheral face of reinforced column 1;Along steel inside prefabricated components 2
Reinforced concrete post 1 is axially arranged with the FRP inner tubes 3 of some internal filling self-compacting concretes 4.
In technical solution of the present invention, the external diameter of FRP inner tubes 3 is 30~80mm, and suitably control exists the thickness of prefabricated components 2
Within 100mm, so that FRP inner tubes 3 produce good constraint to the self-compacting concrete 4 of inside and can significantly reduced
Sectional dimension and raising space availability ratio.And the center spacing of adjacent FRP inner tubes 3 is more than 2 times of internal diameters of FRP inner tubes 3, so makes
Also the lifting of bearing capacity can be ensured in the case of the FRP inner tubes 3 for obtaining negligible amounts.
It is prefabricated after multiple inner surfaces of prefabricated components 2 are connected with the outer surface of reinforced column 1 in technical solution of the present invention
The outer surface of component 2 is pasted with GFRP cloth 5.Preferably, GFRP cloth 5 is axially pasted on the appearance of prefabricated components 2 along reinforced column 1
Face, either GFRP cloth 5 is pasted on the outer surface of prefabricated components 2 with ring-type or GFRP cloth 5 is spirally pasted on prefabricated components 2
Outer surface.
In technical solution of the present invention, GFRP cloth 5 is pasted on the outer surface of prefabricated components 2 with wet bonding.
The present invention also proposes a kind of side using the small-bore FRP pipes reinforced steel concrete rod structure of prefabricated concrete filled
Method, comprise the following steps:
S1:Original reinforced column 1 is checked and repaired, and to the polishing of the surface of reinforced column 1 and clearly
Pat whole;
S2:To the uniform brushwork epoxy resin in the surface of reinforced column 1 cleared up as substrate;
S3:In the uniform brushing binding agent of the inner surface of prefabricated components 2;
S4:The inner surface of prefabricated components 2 is pasted on the outer surface of reinforced column 1, bonds both connected;
S5:Binding agent is painted on the surface of GFRP cloth 5 after natural curing 24 hours, it is fully infiltrated;
S6:In the outer surface of prefabricated components 2, uniform brushwork epoxy resin is pasted on as substrate, and by the GFRP cloth 5 of infiltration
The outer surface of prefabricated components 2, it is light to press GFRP cloth 5, bubble and unnecessary binding agent are discharged;
S7:Natural curing post-reinforcing component.
Preferably, the side of prefabricated components 2 is uniformly painted with binding agent, the portion inner surface of prefabricated components 2 with close to prefabricated
The side bonds of component 2 are connected.
Preferably, in step S2, the thickness of the epoxy resin of brushing is 1~2mm, in step S3, the binding agent of brushing
Thickness is 1~2mm.
Embodiment 1
Refer to Fig. 1 and Fig. 2, in the embodiment of the present invention, reinforced column 1 to be reinforced is square column, and its length of side is
400mm, the length of prefabricated components 2 is 500mm, and width 100mm, the small-bore external diameter of FRP inner tubes 3 is 60mm, GFRP cloth 5
Thickness is 0.333mm, and original reinforced column 1 is reinforced, and specific implementation steps are:
The reinforced column 1 for treating reinforcing is checked and repaired, the outer surface of former post is polished, clear up it is flat
It is whole, wherein grinding process can be carried out to the surface of reinforced column 1 using conventional bush hammer.After grinding process, make
The concrete impurity polished and left is removed with water under high pressure, surface to be treated uses high pressure after the placement of at least one day is dried
Air pump purges on its surface totally, ensures the cleaning on its surface.
Then in treated uniformly brushing binding agent to be used as bonding substrates, it is preferable that the thickness of binding agent
It is suitably 1~2mm.
Then in the inner surface of prefabricated components 2 equably brushing binding agent, it is preferable that the thickness of binding agent is suitably 1~
2mm。
Then the prefabricated components 2 for applying swiped through binding agent are bonded on the surface of reinforced column 1 that surface treated crosses,
Then gently extruded member, both is bonded and is integrally formed, reused horizon rule and ensure prefabricated components 2 and reinforced column 1
The perpendicularity on surface, is then fixed.
After bonding carries out natural curing 24 hours again, by binding agent brushing and the surface of GFRP cloth 5, it is set fully to soak
Profit.Then in the outer surface of prefabricated components 2, equably brushing binding agent as substrate, and the GFRP cloth of infiltration is adhered to prefabricated
The surface of component 2, GFRP cloth is gently extruded, bubble and unnecessary binding agent are discharged, finally carried out natural curing and reinforce structure
Part.
Embodiment 2
Such as Fig. 3 and Fig. 4, in the embodiment of the present invention, reinforced column 1 to be reinforced is cylinder, its a diameter of 800mm,
The interior diameter of prefabricated components 2 is 800mm, and its external diameter is 1000mm, and the small-bore external diameter of FRP inner tubes 2 is 60mm, GFRP cloth 5
Thickness is 0.333mm, and original Reinforced Concrete Circular Cylinder is reinforced, and specific implementation steps are:
The reinforced column 1 for treating reinforcing is checked and repaired, the outer surface of former post is polished, clear up it is flat
It is whole, wherein grinding process can be carried out to the surface of reinforced column 1 using conventional bush hammer.After grinding process, make
The concrete impurity polished and left is removed with water under high pressure, surface to be treated uses high pressure after the placement of at least one day is dried
Air pump purges on its surface totally, ensures its surface cleaning.
Then in treated uniformly brushing binding agent to be used as bonding substrates, it is preferable that the thickness of binding agent
It is suitably 1~2mm.
Then in the inner surface of prefabricated components 2 equably brushing binding agent, it is preferable that the thickness of binding agent is suitably 1~
2mm。
Then the prefabricated components 2 for applying swiped through binding agent are bonded on the surface of reinforced column 1 that surface treated crosses,
Then gently extruded member, both is bonded and is integrally formed, reused horizon rule and ensure prefabricated components 2 and former reinforced column
The perpendicularity on 1 surface, is then fixed.
After bonding carries out natural curing 24 hours again, by binding agent brushing and the surface of GFRP cloth, it is set fully to infiltrate.
Then in the outer surface of prefabricated components 2, equably brushing binding agent is adhered to prefabricated structure as substrate, and by the GFRP cloth of infiltration
The surface of part 2, GFRP cloth is gently extruded, bubble and unnecessary binding agent are discharged, finally carry out natural curing strenthening member.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the scope of the invention, it is every at this
Under the design of invention, the equivalent structure transformation made using description of the invention and accompanying drawing content, or directly/it is used in indirectly
He is included in the scope of patent protection of the present invention related technical field.
Claims (10)
1. the prefabricated small-bore FRP pipes reinforced steel concrete rod structure of concrete filled, it is characterised in that including several sides
Close to connected prefabricated components, the prefabricated components inner surface is connected with armored concrete outer surface of column, multiple prefabricated structures
Part side is horizontal successively to be connected reinforced column outer peripheral face encirclement;Along the reinforced concrete inside the prefabricated components
Earth pillar is axially arranged with the FRP inner tubes of some internal filling self-compacting concretes.
2. the prefabricated small-bore FRP pipes reinforced steel concrete rod structure of concrete filled as claimed in claim 1, its feature exist
In the external diameter of the FRP inner tubes is 30~80mm, and the prefabricated components thickness is less than or equal to 100mm;In the adjacent FRP
The center spacing of pipe is more than 2 times of FRP inner tube diameters.
3. the prefabricated small-bore FRP pipes reinforced steel concrete rod structure of concrete filled as claimed in claim 1, its feature exist
In after multiple prefabricated components inner surfaces are connected with the armored concrete outer surface of column, the prefabricated components outer surface is glued
Post GFRP cloth.
4. the prefabricated small-bore FRP pipes reinforced steel concrete rod structure of concrete filled as claimed in claim 3, its feature exist
In the GFRP cloth is axially pasted on the prefabricated components outer surface along the reinforced column.
5. the prefabricated small-bore FRP pipes reinforced steel concrete rod structure of concrete filled as claimed in claim 3, its feature exist
In the GFRP cloth is pasted on the prefabricated components outer surface with ring-type.
6. the prefabricated small-bore FRP pipes reinforced steel concrete rod structure of concrete filled as claimed in claim 3, its feature exist
In the GFRP cloth is spirally pasted on the prefabricated components outer surface.
7. the small-bore FRP pipes reinforced steel concrete rod structure of prefabricated concrete filled as described in claim 3 to 6 is any,
Characterized in that, the GFRP cloth is pasted on the prefabricated components outer surface with wet bonding.
8. one kind uses the prefabricated small-bore FRP pipes reinforced steel concrete post of concrete filled as described in claim 1 to 6 is any
The method of structure, it is characterised in that comprise the following steps:
S1:Original reinforced column is checked and repaired, and to the reinforced column surface polishing and
Clear up smooth;
S2:To the uniform brushwork epoxy resin in reinforced column surface cleared up as substrate;
S3:In the uniform brushing binding agent of the prefabricated components inner surface;
S4:The prefabricated components inner surface is pasted on the armored concrete outer surface of column, bonds both connected;
S5:Binding agent is painted on GFRP cloth surface after natural curing 24 hours, it is fully infiltrated;
S6:In the uniform brushwork epoxy resin in prefabricated components outer surface as substrate, and the GFRP cloth of infiltration is pasted
In the prefabricated components outer surface, the GFRP cloth is gently pressed, bubble and unnecessary binding agent are discharged;
S7:Natural curing post-reinforcing component.
9. method as claimed in claim 8, it is characterised in that in the step S3, the prefabricated components side is uniformly brushed
There is binding agent;In the step S4, the portion inner surface of the prefabricated components is connected with the side bonds close to prefabricated components.
10. method as claimed in claim 7, it is characterised in that in the step S2, the thickness of the epoxy resin of brushing is 1
~2mm;In the step S3, the thickness of the binding agent of brushing is 1~2mm.
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Cited By (4)
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CN108560828A (en) * | 2018-05-23 | 2018-09-21 | 广东工业大学 | Prefabricated assembled multitube confined concrete double-walled open tubular column, process units and technique |
CN110359724A (en) * | 2019-07-10 | 2019-10-22 | 太原理工大学 | A kind of artificial tree dry fibers concrete beam column structure |
CN113294006A (en) * | 2021-05-21 | 2021-08-24 | 华中科技大学 | Fabricated concrete column reinforcing method and reinforcing device |
CN113530294A (en) * | 2021-07-15 | 2021-10-22 | 陕西省建筑科学研究院有限公司 | Method for assembling prefabricated member reinforcing column by adopting concrete |
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