CN113323429A - Device and method for fully prefabricated reinforced concrete structure - Google Patents
Device and method for fully prefabricated reinforced concrete structure Download PDFInfo
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- CN113323429A CN113323429A CN202110384031.1A CN202110384031A CN113323429A CN 113323429 A CN113323429 A CN 113323429A CN 202110384031 A CN202110384031 A CN 202110384031A CN 113323429 A CN113323429 A CN 113323429A
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- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims description 28
- 239000000463 material Substances 0.000 claims abstract description 92
- 239000004567 concrete Substances 0.000 claims abstract description 74
- 239000003292 glue Substances 0.000 claims abstract description 36
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 27
- 229920006253 high performance fiber Polymers 0.000 claims abstract description 13
- 239000000853 adhesive Substances 0.000 claims description 30
- 230000001070 adhesive effect Effects 0.000 claims description 30
- 239000011210 fiber-reinforced concrete Substances 0.000 claims 2
- 230000002787 reinforcement Effects 0.000 description 11
- 238000010276 construction Methods 0.000 description 10
- 239000000835 fiber Substances 0.000 description 6
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000011151 fibre-reinforced plastic Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 239000012779 reinforcing material Substances 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000011374 ultra-high-performance concrete Substances 0.000 description 1
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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
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- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention discloses a device for fully prefabricated reinforced concrete structure, wherein a prefabricated plate is made of ultra-high performance fiber concrete, the prefabricated glue material is provided with a first surface and a second surface which are opposite, the first surface and the second surface of the prefabricated glue material are both provided with viscosity, the first surface of the prefabricated glue material is pasted on the concrete structure to be reinforced, the prefabricated plate is pasted on the second surface of the prefabricated glue material, and the ultra-high performance fiber concrete prefabricated plate is pasted on the position to be reinforced of the concrete structure to be reinforced through a double-sided strong prefabricated glue material to play a reinforcing role.
Description
Technical Field
The invention belongs to the technical field of civil engineering, and particularly relates to a device and a method for fully prefabricating an assembled reinforced concrete structure.
Background
In the long-term use process of the reinforced concrete structure, due to aging, external corrosive environment factors, or fire or earthquake, the normal use and the bearing capacity of the structure can be damaged to different degrees. In order to improve the bearing capacity of the structure and meet the performance requirements of normal use of the structure, the aged or damaged structure needs to be reinforced.
At present, the reinforcing method for the reinforced concrete member mainly includes a section enlarging method, a steel sticking method, a Fiber Reinforced Plastic (FRP) reinforcing method, and the like. These methods can effectively improve the bearing capacity of the concrete structural member, but also have the following disadvantages: the method for increasing the cross section has low reinforcing efficiency, complex and complicated construction process and high requirement on construction quality; the steel plate is easy to rust by a steel sticking reinforcing method, and the reinforcing effect is seriously influenced; the FRP reinforcement method has higher cost and is not suitable for large-scale application; meanwhile, when a steel sticking method and an FRP method are adopted, the reinforced composite structure is easy to deform and is inconsistent under the action of force due to the large mechanical property difference between the reinforced material and the reinforced structure, and the reinforcing and repairing effect is affected.
The ultra-high performance fiber concrete is a cement-based fiber composite material, and has the advantages of high compressive strength, high tensile strength, high ductility, lower cost and the like. Meanwhile, the material has the similar stress deformation characteristic to that of common reinforced concrete material, and is an ideal reinforcing material. At present, the main application method for reinforcing the reinforced concrete structure by using the ultra-high performance fiber concrete is cast-in-place, the operation is complicated, and the efficiency is low, for example, the patent 'a precast prestressed beam-column joint structure reinforced by mixed fiber concrete' (patent number: CN 201920646239.4); "a method for reinforcing a post-earthquake pier by using super-tough fiber concrete" (patent No. CN 201810445129.1); "a method for reinforcing concrete column by using UHPC" (patent number: CN201810232743.X), etc. In the aspect of reinforcing by adopting an ultrahigh-performance fiber concrete prefabricated part, the patent 'device and method for reinforcing a concrete column by annularly restricting an ultrahigh-performance fiber concrete prefabricated segment' (application number: 201710557559; publication number: CN 107269019A) discloses a method for reinforcing the concrete column by using the prefabricated segment.
Disclosure of Invention
The invention aims to provide a device and a method for fully prefabricated reinforced concrete structure, which can be suitable for reinforcing concrete structure members with different sizes and shapes, can effectively improve the strength and the ductility of the structure, can control the processing quality better because a reinforcing plate is prefabricated by a factory, and has the advantages of convenient operation and short construction time because the field reinforcement is dry operation construction.
In order to solve the problems, the technical scheme of the invention is as follows:
a device for fully prefabricated reinforced concrete structure comprises a prefabricated plate (1) and a prefabricated rubber material (2);
the prefabricated plate (1) is made of ultra-high performance fiber concrete;
the prefabricated glue material (2) is provided with a first surface and a second surface which are opposite, the first surface and the second surface of the prefabricated glue material (2) are both provided with viscosity, the first surface of the prefabricated glue material (2) is pasted on a concrete structure (3) to be reinforced, and the prefabricated plate (1) is pasted on the second surface of the prefabricated glue material (2).
Preferably, the concrete structure (3) to be reinforced is a beam structure or a column structure with square, round or other special-shaped cross section.
Preferably, the precast slab (1) can be adhered to a tensile region of a beam structure, a side of a column structure, and a beam-column joint region.
Preferably, when the concrete structure (3) to be reinforced is a column structure with a circular cross section, the prefabricated panels (1) and the prefabricated rubber materials (2) are two pieces and are in a semicircular shape, the two prefabricated rubber materials (2) are spliced end to form an annular shape and are adhered to the outer wall of the concrete structure (3) to be reinforced, and the two prefabricated panels (1) are correspondingly adhered to the prefabricated rubber materials (2).
Preferably, the thickness of the precast slab (1) is 1/6-1/15 of the section height of the concrete structure (3) to be reinforced.
Preferably, the pre-prepared adhesive material (2) is a peel-off pre-prepared adhesive material, and release paper is attached to both the first surface and the second surface of the pre-prepared adhesive material (2).
Based on the same inventive concept, the invention also provides a method for fully prefabricating the prefabricated reinforced concrete structure, which comprises the following steps:
providing a prefabricated plate, and prefabricating the prefabricated plate with a corresponding size and shape according to the size and shape of a concrete structure to be reinforced by taking ultra-high-performance fiber concrete as a material;
providing a prefabricated rubber material, wherein the prefabricated rubber material is provided with a first surface and a second surface which are opposite, and the first surface and the second surface of the prefabricated rubber material are both provided with viscosity;
grinding the surface of the concrete structure to be reinforced, and sticking the first surface of the prefabricated rubber material to the concrete structure to be reinforced;
and adhering the prefabricated panel to the second surface of the prefabricated rubber material.
Preferably, the pre-prepared adhesive material is a peel-off pre-prepared adhesive material, and release paper is attached to both the first surface and the second surface of the pre-prepared adhesive material.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages and positive effects:
1) the invention provides a device for fully prefabricated assembly type reinforced concrete structure, wherein a prefabricated plate is made of ultra-high performance fiber concrete, the prefabricated glue material is provided with a first surface and a second surface which are opposite, the first surface and the second surface of the prefabricated glue material are both provided with viscosity, the first surface of the prefabricated glue material is pasted on the concrete structure to be reinforced, the prefabricated plate is pasted on the second surface of the prefabricated glue material, and the ultra-high performance fiber concrete prefabricated plate is pasted on the position to be reinforced of the concrete structure component to be reinforced through a double-sided strong prefabricated glue material to play a reinforcing role.
Drawings
Fig. 1 is a schematic structural view of an apparatus for completely prefabricating a prefabricated reinforced concrete structure according to an embodiment of the present invention;
fig. 2 is a schematic structural view illustrating an apparatus for completely prefabricating a reinforced concrete structure according to another embodiment of the present invention;
fig. 3 is a flowchart illustrating steps of a method for prefabricating a prefabricated reinforced concrete structure according to an embodiment of the present invention.
Description of reference numerals:
1: prefabricating a plate; 2: prefabricating a rubber material; 3: and (5) the concrete structure to be reinforced.
Detailed Description
The apparatus and method for reinforcing a fully prefabricated reinforced concrete structure according to the present invention will be described in detail with reference to the accompanying drawings and embodiments. Advantages and features of the present invention will become apparent from the following description and from the claims.
Example one
Referring to fig. 1 and 2, the embodiment provides a device for a fully prefabricated reinforced concrete structure, which includes a prefabricated plate 1 and a prefabricated rubber material 2;
the prefabricated plate 1 is made of ultra-high performance fiber concrete, the ultra-high performance fiber concrete is a cement-based fiber composite material, and has the advantages of high compressive strength, high tensile strength, high ductility and low cost, the prefabricated plate 1 can be made into a thin plate with any size and shape, the appearance and the dimensional parameters of the thin plate are determined according to the appearance of the concrete structure 3 to be reinforced and the requirement on the mechanical property of reinforcement, in the embodiment, the plane size of the prefabricated plate 1 is the same as the size of the bottom surface or the side surface of the beam to be reinforced, and the thickness can be 1/6 to 1/15 of the section height of the beam to be reinforced;
the prefabricated glue material 2 is provided with a first surface and a second surface which are opposite, and the first surface and the second surface of the prefabricated glue material 2 are both provided with viscosity, in the embodiment, the prefabricated glue material 2 is a double-sided strong glue material, the viscosity of the prefabricated glue material needs to meet the requirements of coordinated deformation and common stress between a reinforced test piece and a reinforcing material, the first surface of the prefabricated glue material 2 is pasted on the concrete structure 3 to be reinforced, the prefabricated plate material 1 is pasted on the second surface of the prefabricated glue material 2, the prefabricated glue material 2 plays a role in pasting the prefabricated plate material 1 on the concrete structure 3 to be reinforced, and the prefabricated plate material 1 plays a role in enhancing the strength, the rigidity and the ductility of the concrete structure 3 to be reinforced;
as a preferred example of this embodiment, the prefabricated adhesive material 2 is a peel-off prefabricated adhesive material, that is, release paper is attached to both the first surface and the second surface of the prefabricated adhesive material 2, when in use, the release paper on the first surface of the prefabricated adhesive material 2 is firstly peeled off, the prefabricated adhesive material is adhered to the outer surface of the concrete structure 3 to be reinforced, then the release paper on the second surface is lifted, the prefabricated plate 1 is adhered to the second surface of the prefabricated adhesive material 2, the prefabricated plate 1 and the concrete structure 3 to be reinforced are adhered into a whole, the strength, the rigidity and the ductility of the concrete structure 3 to be reinforced are enhanced, and the field construction operation is very quick;
in this embodiment, the cross section of the concrete structure 3 to be reinforced may be circular or rectangular, and as shown in fig. 1, when the cross section of the concrete structure 3 to be reinforced is rectangular, a rectangular prefabricated plate 1 and a rectangular prefabricated glue material 2 are manufactured according to the size of the concrete structure 3 to be reinforced, the prefabricated glue material 2 is firstly adhered to the damaged position of the concrete structure 3 to be reinforced, and then the prefabricated plate 1 is adhered to the prefabricated glue material 2 to repair the damaged position; referring to fig. 2, when the cross section of the concrete structure 3 to be reinforced is circular, the prefabricated panels 1 and the prefabricated rubber materials 2 are two and are both semicircular, the two prefabricated rubber materials 2 are spliced end to form an annular shape and are adhered to the outer wall of the concrete structure 3 to be reinforced, and the two prefabricated panels 1 are correspondingly adhered to the prefabricated rubber materials 2.
The embodiment provides a device for reinforcing a concrete structure by fully prefabricated assembly, which provides a new concept of 'fully prefabricated assembly reinforcement of prefabricated plates and prefabricated glue materials', and is an innovation for structural reinforcement, the prefabricated plates 1 can be used for integral reinforcement or local repair of the concrete structure 3 to be reinforced, and the prefabricated plates 1 can be adhered to any position of the concrete structure 3 to be reinforced through the prefabricated glue materials 2, including a tensile area of a beam member or a side surface of a column member or a beam-column node area, the device for reinforcing the concrete structure by fully prefabricated assembly provided by the embodiment has the advantages of simple structure, convenient operation, short construction time and good reinforcement performance, can be suitable for reinforcing concrete structure members with different sizes and shapes, effectively improves the strength and ductility of the concrete structure, and is prefabricated and manufactured by factories, the processing quality can be well controlled, the field reinforcement is dry operation construction, and the operation is convenient.
Example two
Based on the same inventive concept, the invention also provides a method for fully prefabricating the prefabricated reinforced concrete structure, which comprises the following steps:
providing a prefabricated plate, taking ultra-high performance fiber concrete as a material, and manufacturing the prefabricated plate with a certain size and thickness in a factory according to the shape, the damaged condition and the reinforcement mechanical property requirement of a concrete structure to be reinforced;
providing a prefabricated adhesive material, wherein the prefabricated adhesive material is provided with a first surface and a second surface which are opposite, and the first surface and the second surface of the prefabricated adhesive material are both provided with viscosity, in the embodiment, the prefabricated adhesive material is a peeling-off prefabricated adhesive material, namely, release paper is adhered to the first surface and the second surface of the prefabricated adhesive material, when the prefabricated adhesive material is used, the release paper on the first surface of the prefabricated adhesive material 2 is firstly peeled off and is adhered to the outer surface of the concrete structure 3 to be reinforced, then the release paper on the second surface is lifted, the prefabricated plate 1 is adhered to the second surface of the prefabricated adhesive material 2, the prefabricated plate 1 and the concrete structure 3 to be reinforced are adhered into a whole, the strength, the rigidity and the ductility of the concrete structure 3 to be reinforced are enhanced, and the site construction operation is very quick;
grinding the surface of the concrete structure to be reinforced, and sticking the first surface of the prefabricated rubber material on the concrete structure to be reinforced;
and adhering the prefabricated plate to the second surface of the prefabricated rubber material.
The method for fully prefabricating the prefabricated reinforced concrete structure provided by the embodiment has the advantages of simple structure, convenience in operation, short construction time and good reinforcement performance, can be suitable for reinforcing concrete structure members with different sizes and shapes, effectively improves the strength and ductility of the concrete structure, can control the processing quality better because the reinforced plate is prefabricated and manufactured in a factory, and is convenient to operate because field reinforcement is dry operation construction.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, it is still within the scope of the present invention if they fall within the scope of the claims of the present invention and their equivalents.
Claims (8)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2021202141847 | 2021-01-26 | ||
| CN202110103968 | 2021-01-26 | ||
| CN202120214184 | 2021-01-26 | ||
| CN2021101039687 | 2021-01-26 |
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| CN113323429A true CN113323429A (en) | 2021-08-31 |
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| CN202110384031.1A Pending CN113323429A (en) | 2021-01-26 | 2021-04-09 | Device and method for fully prefabricated reinforced concrete structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114086457A (en) * | 2021-11-12 | 2022-02-25 | 重庆交通大学 | A reinforced T-girder bridge and its reinforcement method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009071832A2 (en) * | 2007-11-26 | 2009-06-11 | Laboratoire Central Des Ponts Et Chaussees | Wood-concrete carrier structure |
| CN103320027A (en) * | 2013-08-05 | 2013-09-25 | 苏州工业园区依利电子贸易有限公司 | Folding breathable double-sided adhesive tape |
| CN106481090A (en) * | 2016-10-21 | 2017-03-08 | 上海应用技术大学 | A kind of Shockproof reinforcing method of existing reinforced concrete concrete frame joint |
| CN107269019A (en) * | 2017-07-10 | 2017-10-20 | 浙江大学 | The device and method of very-high performance fiber concrete prefabricated pipe section hoop constraint reinforced concrete column |
| CN108149924A (en) * | 2018-01-17 | 2018-06-12 | 上海建工二建集团有限公司 | A kind of piece method |
| CN109322502A (en) * | 2017-07-31 | 2019-02-12 | 湖南大学 | A kind of high-strength reinforced ultra-high-performance concrete plate for flexural member reinforcement |
-
2021
- 2021-04-09 CN CN202110384031.1A patent/CN113323429A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009071832A2 (en) * | 2007-11-26 | 2009-06-11 | Laboratoire Central Des Ponts Et Chaussees | Wood-concrete carrier structure |
| CN103320027A (en) * | 2013-08-05 | 2013-09-25 | 苏州工业园区依利电子贸易有限公司 | Folding breathable double-sided adhesive tape |
| CN106481090A (en) * | 2016-10-21 | 2017-03-08 | 上海应用技术大学 | A kind of Shockproof reinforcing method of existing reinforced concrete concrete frame joint |
| CN107269019A (en) * | 2017-07-10 | 2017-10-20 | 浙江大学 | The device and method of very-high performance fiber concrete prefabricated pipe section hoop constraint reinforced concrete column |
| CN109322502A (en) * | 2017-07-31 | 2019-02-12 | 湖南大学 | A kind of high-strength reinforced ultra-high-performance concrete plate for flexural member reinforcement |
| CN108149924A (en) * | 2018-01-17 | 2018-06-12 | 上海建工二建集团有限公司 | A kind of piece method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114086457A (en) * | 2021-11-12 | 2022-02-25 | 重庆交通大学 | A reinforced T-girder bridge and its reinforcement method |
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