CN220868923U - Anchoring reinforcing structure for CFRP plate - Google Patents
Anchoring reinforcing structure for CFRP plate Download PDFInfo
- Publication number
- CN220868923U CN220868923U CN202322544220.8U CN202322544220U CN220868923U CN 220868923 U CN220868923 U CN 220868923U CN 202322544220 U CN202322544220 U CN 202322544220U CN 220868923 U CN220868923 U CN 220868923U
- Authority
- CN
- China
- Prior art keywords
- cfrp
- plate
- plates
- structural substrate
- anchoring
- Prior art date
- 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.)
- Active
Links
- 239000004918 carbon fiber reinforced polymer Substances 0.000 title claims abstract description 88
- 238000004873 anchoring Methods 0.000 title claims abstract description 30
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 17
- 238000003825 pressing Methods 0.000 claims abstract description 45
- 239000000758 substrate Substances 0.000 claims abstract description 42
- 239000010410 layer Substances 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 15
- 239000012790 adhesive layer Substances 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 230000035515 penetration Effects 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000000853 adhesive Substances 0.000 description 9
- 230000001070 adhesive effect Effects 0.000 description 9
- 238000010276 construction Methods 0.000 description 6
- 230000002787 reinforcement Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 241000826860 Trapezium Species 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Working Measures On Existing Buildindgs (AREA)
Abstract
The utility model discloses an anchoring reinforcing structure for a CFRP plate, which comprises the CFRP plate, a structural substrate plate, a pressing strip, a fastener and a bonding layer; one surface of each CFRP plate is attached to the structural substrate plate through an adhesive layer, and a plurality of CFRP plates are arranged on the structural substrate plate at intervals; the pressing strips are pressed against the other surfaces of the CFRP plates, the pressing strips are bonded with the CFRP plates and the structural substrate plate through bonding layers, the pressing strips are fixedly connected with the structural substrate plate through a plurality of fasteners, and one or a plurality of pressing strips are respectively pressed on the CFRP plates at intervals. The utility model relates to the technical field of CFRP materials, and can solve the problems of complex manufacturing and high cost of a CFRP material anchoring structure in the prior art.
Description
Technical Field
The utility model relates to the technical field of CFRP materials, in particular to an anchoring reinforcing structure for a CFRP plate.
Background
At present, CFRP (Carbon Fiber Reinforced Plastics, namely carbon fiber cloth) materials are widely applied to the field of building structure reinforcement because of the advantages of light weight, high strength, corrosion resistance and the like. However, due to the performance of the structural adhesive, the bonding anchoring length between the CFRP and the structural substrate is often large, which causes material waste and simultaneously brings trouble to the operation of a limited space.
The Chinese patent application CN111005587A discloses a self-locking prestress CFRP strip tensioning and anchoring system, which comprises an anchoring end and a tensioning end; the steel plate comprises a high-strength bolt, an anchor end slotting steel plate, slotting movable steel plates, clamping piece type anchors, CFRP strips, fixed steel plates and steel strands; firstly, manufacturing a steel plate of a self-locking type tensioning anchoring system; inserting the clamping piece type anchorage device of the movable slotted steel plate at the tensioning end into the steel stranded wire for connection with the clamping piece type anchorage device of the fixed steel plate at the tensioning end; then the CFRP strips are wound around the slotted steel plates, and the other ends of the four layers of CFRP strips at the tensioning end are wound with the movable slotted steel plates at the tensioning end; and then the self-locking tensioning system is installed at the reinforcing position, and prestress is applied.
The anchoring system is complex to manufacture and high in cost, so that the application of the anchoring system in actual engineering construction is blocked, and the anchoring system is not suitable for popularization and use. Therefore, it is necessary to provide an anchoring reinforcement structure for CFRP plates, which can solve the problems of complex manufacturing and high cost of the CFRP material anchoring structure in the prior art.
Disclosure of Invention
The utility model aims to provide an anchoring reinforcing structure for a CFRP plate, which can solve the problems of complex manufacturing and high cost of the CFRP material anchoring structure in the prior art.
The utility model is realized in the following way:
An anchoring reinforcement structure for CFRP plates, comprising a CFRP plate, a structural substrate plate, a pressing strip, a fastener and a bonding layer; one surface of each CFRP plate is attached to the structural substrate plate through an adhesive layer, and a plurality of CFRP plates are arranged on the structural substrate plate at intervals; the pressing strips are pressed against the other surfaces of the CFRP plates, the pressing strips are bonded with the CFRP plates and the structural substrate plate through bonding layers, the pressing strips are fixedly connected with the structural substrate plate through a plurality of fasteners, and one or a plurality of pressing strips are respectively pressed on the CFRP plates at intervals.
When the structural substrate plate is a steel plate, the fastener is a high-strength bolt, one end of the high-strength bolt is welded and fixed with the steel plate through groove penetration welding, and the other end of the high-strength bolt is pressed on the pressing strip through a screwed nut.
When the structural substrate board is a concrete board, a mounting hole is reserved in the concrete board, the fastening piece is an expansion bolt, one end of the expansion bolt is fixed in the mounting hole, and the other end of the expansion bolt is pressed on the pressing strip through a screwing nut.
And through holes for a plurality of fasteners are reserved on the pressing strips, and the through holes are staggered with the CFRP plates.
The CFRP plate is arranged perpendicular to the pressing strip.
The thickness of the bonding layer is 2+/-0.3 mm.
Compared with the prior art, the utility model has the following beneficial effects:
1. The CFRP plate is integrally bonded on the structural substrate plate through the bonding layer, and meanwhile, the CFRP plate is pressed on the CFRP plate through the bonding layer, and the bonding layer is fixed on the structural substrate plate through the bonding layer, so that the double-sided shearing-resistant and anchoring-enhancing functions are achieved on the CFRP plate.
2. According to the utility model, the bolts are used as the fasteners, so that the proper bolt type can be selected according to the material types of the structural substrate plates, the high-strength bolts are welded with the structural substrate plates made of steel plates, and the expansion bolts are fixed with the structural substrate plates made of concrete, so that the anchor reinforcing structure is applicable to different structural substrates, and the adaptability and the universality of the anchor reinforcing structure are improved.
Drawings
FIG. 1 is a perspective view of an anchor reinforcing structure for a CFRP plate of the present utility model;
FIG. 2 is a top view of the anchoring reinforcement structure for CFRP plates of the present utility model;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is a cross-sectional view B-B of FIG. 2;
FIG. 5 is a schematic illustration of the attachment of fasteners to structural substrate plates (the structural substrate plates being steel plates) in an anchoring reinforcement structure for CFRP plates according to the present utility model;
Fig. 6 is a schematic illustration of the attachment of fasteners to structural substrate panels (structural substrate panels being concrete panels) in an anchoring reinforcement structure for CFRP panels according to the present utility model.
In the figure, a 1CFRP plate, a 2-structure substrate plate, a 201-groove penetration weld, a 202 mounting hole, a 3-layering, a 4-fastening piece and a 5-bonding layer are arranged.
Detailed Description
The utility model will be further described with reference to the drawings and the specific examples.
Referring to fig. 1 to 4, an anchor reinforcing structure for a CFRP plate includes a CFRP plate 1, a structural base plate 2, a bead 3, a fastener 4 and an adhesive layer 5; one surface of the CFRP plate 1 is attached to the structural substrate plate 2 through an adhesive layer 5, and a plurality of CFRP plates 1 are arranged on the structural substrate plate 2 at intervals; the pressing strips 3 are propped against the other surfaces of the CFRP plates 1, the pressing strips 3 are adhered to the CFRP plates 1 and the structural substrate plate 2 through the adhesive layers 5, the pressing strips 3 are fixedly connected with the structural substrate plate 2 through the fasteners 4, and one or a plurality of pressing strips 3 are respectively pressed on the CFRP plates 1 at intervals.
The CFRP plate 1 is adhered to the structural substrate plate 2 through the whole surface of the adhesive layer 5, the adhesion area of the CFRP plate 1 and the structural substrate plate 2 is large, the anchoring reliability is high, and meanwhile, the CFRP plate 1 is tightly pressed on the structural substrate plate 2 through the pressing strip 3 and the fastener 4, so that the anchoring firmness of the CFRP plate 1 is further improved. The pressing strips 3 can be pressed at different positions such as the end part, the middle part, the side part and the like of the CFRP plate 1 according to anchoring requirements, and the number of the pressing strips 3 and the fastening pieces 4 can be increased or decreased according to actual requirements.
Preferably, the pressing strip 3 can be made of steel plates, the bonding layer 5 can be made of structural adhesive, and the fastening piece 4 can be made of bolts.
Referring to fig. 5, when the structural substrate plate 2 is a steel plate, the fastener 4 is a high-strength bolt, one end of the high-strength bolt is welded and fixed with the steel plate through groove penetration welding 201, and the other end of the high-strength bolt is pressed on the pressing strip 3 through a screwed nut.
The steel plate and the high-strength bolt are welded and fixed through groove penetration welding 201, punching is not needed, construction is convenient, connection reliability is high, and reliable compression of the pressing strip 3 to the end part of the CFRP plate 1 is guaranteed.
Referring to fig. 6, when the structural substrate board 2 is a concrete slab, a mounting hole 202 is reserved in the concrete slab, the fastening member 4 is an expansion bolt, one end of the expansion bolt is fixed in the mounting hole 202, and the other end of the expansion bolt is pressed on the pressing strip 3 by a screwing nut.
The mounting holes 202 are drilled on the concrete slab, and the concrete slab is fixedly connected with the expansion bolts through the expansion bolts, so that the connection reliability is high, and the reliable compression of the pressing strip 3 on the end part of the CFRP plate 1 is ensured.
The pressing strip 3 is provided with through holes (not shown in the figure) for a plurality of fasteners 4, and the through holes are staggered with the CFRP plate 1.
The position of the through hole is staggered from the CFRP plate 1, so that the installation of the fastener 4 is prevented from damaging the structure of the CFRP plate 1.
Referring to fig. 2, the CFRP plates 1 are vertically arranged with the pressing strips 3, the lengths of the pressing strips 3 are determined according to the number and arrangement range of the CFRP plates 1, and one pressing strip 3 can simultaneously press and fix the end parts of the CFRP plates 1, so that the high-efficiency installation is convenient.
The thickness of the bonding layer 5 is 2+/-0.3 mm, so that the bonding strength is ensured and the material waste of the structural adhesive is reduced.
Referring to fig. 1 to 6, the construction process of the present utility model is:
(1) Positioning and lofting: the distance and the number of the fasteners 4 are determined according to the reinforcing range and the position of the CFRP plate 1 according to the construction scheme. The structural base plate 2 is sprung to eject the CFRP plate 1 at the bonding position (outline) and the distribution position of the fasteners 4.
(2) And (4) construction of a fastener 4: when the structural substrate plate 2 is a steel plate, the high-strength bolts are preferably welded 201 by groove penetration and are constructed before the adhesive layer 5 is painted, meanwhile, the welding leg is not oversized, and the installation and the compaction of the pressing strip 3 are prevented from being influenced by welding. When the structural base material plate 2 is a concrete plate, the structural base material plate can be connected by adopting a mode of arranging expansion bolts, and the expansion bolts can be put on the CFRP plate 1 for construction after being pasted.
(3) Surface treatment: the surface of the structural substrate plate 2 is subjected to surface treatment such as degreasing, rust removal and the like, the surface of the pressing strip 3 is subjected to sand blasting treatment, and the surface is cleaned by a solvent before being stuck.
(4) Pasting CFRP plate 1: the structural adhesive is prepared according to the technological rules provided by the product manufacturer and uniformly smeared on the adhesive surface of the CFRP plate 1 according to the trapezium shape to form the adhesive layer 5. The CFRP plate 1 is lightly pressed by hands to be adhered to the position to be adhered on the structural substrate plate 2 through the bonding layer 5, a special roller is adopted to roll for a plurality of times along the fiber direction of the CFRP plate 1, redundant colloid is extruded, the thickness of the bonding layer 5 is preferably 2+/-0.3 mm, and the CFRP plate 1 is not damaged during rolling. The structural adhesive should be full, and the not full department of structural adhesive should be filled in time, guarantees to bond firmly.
(5) Fixing layering 3: structural adhesive is coated on the anchoring end of the CFRP plate 1 to form an adhesive layer 5, the pressing strip 3 is adhered to the CFRP plate 1, the pressing strip 3 is screwed and fixed on the structural substrate plate 2 by adopting the fastening pieces 4, and the interval and the row number of the fastening pieces 4 can be adjusted according to the requirement, so that the anchoring efficiency is improved.
(6) And (3) protective coating: the CFRP plate 1 and the pressing strip 3 are coated with protective materials (including fireproof materials and the like) according to design rules, so that the service life is prolonged.
(7) Curing and curing: the curing of the structural adhesive is generally carried out at normal temperature. The adhered CFRP plate 1 is strictly forbidden during maintenance, and the pressing strip 3 can have good fixing effect on the CFRP plate 1.
The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model should be included in the scope of the present utility model.
Claims (6)
1. An anchoring and reinforcing structure for a CFRP plate, which is characterized in that: comprises a CFRP plate (1), a structural substrate plate (2), a pressing bar (3), a fastener (4) and a bonding layer (5); one surface of each CFRP plate (1) is attached to the structural base material plate (2) through an adhesive layer (5), and a plurality of CFRP plates (1) are arranged on the structural base material plate (2) at intervals; the pressing strips (3) are propped against the other surfaces of the CFRP plates (1), the pressing strips (3) are adhered to the CFRP plates (1) and the structural substrate plates (2) through the adhesive layers (5), the pressing strips (3) are fixedly connected with the structural substrate plates (2) through the fasteners (4), and one or a plurality of pressing strips (3) are respectively pressed on the CFRP plates (1) at intervals.
2. The anchoring and reinforcing structure for CFRP board according to claim 1, wherein: when the structural substrate plate (2) is a steel plate, the fastening piece (4) is a high-strength bolt, one end of the high-strength bolt is welded and fixed with the steel plate through groove penetration welding (201), and the other end of the high-strength bolt is pressed on the pressing strip (3) through a screwed nut.
3. The anchoring and reinforcing structure for CFRP board according to claim 1, wherein: when the structural substrate plate (2) is a concrete plate, a mounting hole (202) is reserved in the concrete plate, the fastening piece (4) is an expansion bolt, one end of the expansion bolt is fixed in the mounting hole (202), and the other end of the expansion bolt is pressed on the pressing strip (3) through a screwing nut.
4. An anchor reinforcing structure for CFRP board according to any one of claims 1-3, wherein: the pressing strip (3) is reserved with through holes for a plurality of fasteners (4), and the through holes are staggered with the CFRP plate (1).
5. The anchoring and reinforcing structure for CFRP plates of claim 4 wherein: the CFRP plate (1) is arranged perpendicular to the pressing strip (3).
6. The anchoring and reinforcing structure for CFRP board according to claim 1, wherein: the thickness of the bonding layer (5) is 2+/-0.3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322544220.8U CN220868923U (en) | 2023-09-19 | 2023-09-19 | Anchoring reinforcing structure for CFRP plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322544220.8U CN220868923U (en) | 2023-09-19 | 2023-09-19 | Anchoring reinforcing structure for CFRP plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220868923U true CN220868923U (en) | 2024-04-30 |
Family
ID=90808644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322544220.8U Active CN220868923U (en) | 2023-09-19 | 2023-09-19 | Anchoring reinforcing structure for CFRP plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220868923U (en) |
-
2023
- 2023-09-19 CN CN202322544220.8U patent/CN220868923U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2757027B1 (en) | Bonding with adhesive beads or plots | |
| CA1286080C (en) | Prefabricated insulated panels | |
| US4531338A (en) | Building wall panel | |
| CN108978869B (en) | Assembled steel-wood composite beam column node structure and construction method thereof | |
| WO1997004193A1 (en) | Modular damper and structure with this damper | |
| US20220120104A1 (en) | Continuous composite structural reinforcing device & system | |
| JP3144679U (en) | Joint structure of composite floor slab | |
| CN220868923U (en) | Anchoring reinforcing structure for CFRP plate | |
| US8567146B2 (en) | Method and apparatus for repairing concrete | |
| US3956788A (en) | Bridge floor and method of constructing same | |
| CN113738150A (en) | Method for improving bending strength of existing reinforced concrete beam | |
| JP3139375U (en) | Joint structure of composite slab and joint structure of steel slab | |
| CN109403655B (en) | Method for reinforcing concrete beam span | |
| KR20060107256A (en) | Reinforcing system for connection of flat plate-column a building | |
| CN211818216U (en) | Self-locking prestress CFRP strip tensioning anchoring system | |
| JP7494082B2 (en) | Incline correction slope and manufacturing method of inclination correction slope | |
| JP3071732U (en) | Reinforcement structure for concrete structures | |
| CN111005587A (en) | Self-locking prestress CFRP strip tensioning anchoring system | |
| CN210713325U (en) | Assembled lightweight steel wall structure | |
| CN210086724U (en) | Wallboard assembly component | |
| CN111622136A (en) | Prestressed carbon fiber flexible material tensioning and anchoring device and construction method thereof | |
| CN113073790B (en) | Mechanical anchoring method for FRP (fiber reinforced Plastic) section bar in FRP reinforced concrete composite structure | |
| KR200326106Y1 (en) | Prestressed reinforcing structure | |
| JP2924599B2 (en) | FRP reinforced concrete structure and method of manufacturing the same | |
| CN217839761U (en) | Bridge glues steel composite reinforcement structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |