CN117489044A - Variable-ripple clamping piece anchorage device for prestressed carbon fiber plate - Google Patents
Variable-ripple clamping piece anchorage device for prestressed carbon fiber plate Download PDFInfo
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- CN117489044A CN117489044A CN202311551646.4A CN202311551646A CN117489044A CN 117489044 A CN117489044 A CN 117489044A CN 202311551646 A CN202311551646 A CN 202311551646A CN 117489044 A CN117489044 A CN 117489044A
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- China
- Prior art keywords
- clamping piece
- carbon fiber
- corrugated
- fiber plate
- corrugated clamping
- 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.)
- Pending
Links
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 74
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 74
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 229910000746 Structural steel Inorganic materials 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 239000010687 lubricating oil Substances 0.000 claims description 3
- 230000003746 surface roughness Effects 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052799 carbon Inorganic materials 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 16
- 238000004873 anchoring Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 230000035882 stress Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010008 shearing Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 229920006332 epoxy adhesive Polymers 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 229920006335 epoxy glue Polymers 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/08—Members specially adapted to be used in prestressed constructions
- E04C5/12—Anchoring devices
- E04C5/125—Anchoring devices the tensile members are profiled to ensure the anchorage, e.g. when provided with screw-thread, bulges, corrugations
-
- 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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/18—Adjusting tools; Templates
- E04G21/1841—Means for positioning building parts or elements
- E04G21/185—Means for positioning building parts or elements for anchoring elements or elements to be incorporated in the structure
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention discloses a variable-ripple clamping piece anchorage device of a prestressed carbon fiber plate, which relates to the reinforcement and reinforcement of bridge engineering and constructional engineering; the anchorage comprises an anchorage plate, an upper corrugated clamping piece, a carbon fiber plate and a lower corrugated clamping piece, wherein the upper corrugated clamping piece and the lower corrugated clamping piece are of wedge-shaped structures, wave crests and wave troughs of waves on corrugated surfaces of the upper corrugated clamping piece and the lower corrugated clamping piece are tightly attached, the carbon fiber plate is clamped between the upper corrugated clamping piece and the lower corrugated clamping piece, the upper corrugated clamping piece, the carbon fiber plate and the lower corrugated clamping piece form a whole, and a contact surface between the upper corrugated clamping piece and the lower corrugated clamping piece and a taper hole adopts a central arcing design; the anchor plate is provided with a taper hole, the upper corrugated clamping piece and the lower corrugated clamping piece are respectively arranged in the taper hole in a penetrating way, and the outer walls of the upper corrugated clamping piece and the lower corrugated clamping piece are respectively attached to the inner wall of the taper hole; the clamping force of the anchorage is increased through the design that the clamping piece changes the corrugation and the center of the clamping piece is arcing, and the problem that the carbon plate is easy to slide is solved.
Description
Technical Field
The invention relates to the technical field of structural reinforcement engineering, in particular to a variable-ripple clamping piece anchorage device of a prestressed carbon fiber plate.
Background
The carbon fiber plate is continuously valued in the civil field by the characteristics of light weight, high strength, tensile strength, corrosion resistance, convenient construction and the like. In recent years, high-strength composite fiber materials such as carbon fiber sheets have been widely used in the field of reinforcement in civil engineering and construction works. The carbon fiber plate is anchored on the surface of the component after being tensioned, so that the bending bearing capacity, the shearing bearing capacity and the crack resistance of the component can be improved, the service efficiency of the carbon fiber plate can be improved, the reinforcing cost can be reduced, and a good performance improving effect is shown in the reinforcing of concrete and steel beams.
At present, in the reinforcement field, a clamping type anchor clamp is generally adopted to clamp a carbon fiber plate, and a tensioning system is matched to tension the anchor clamp. The metal anchor clamps are used for clamping the two ends of the carbon fiber plate, and the reinforcement effect of applying prestress to the plate and connecting the plate with the structure is quite remarkable. The clamping piece type anchorage comprises an anchorage plate with a taper hole and two wedge-shaped clamping pieces, wherein the anchorage plate is internally provided with the taper hole inclined at a certain angle, the two wedge-shaped clamping pieces clamp the carbon fiber plate and then are inserted into the taper hole in the anchorage plate, the clamping pieces are applied with a jacking force to enable the clamping pieces to enter the taper hole together, friction force is generated on the inclined surfaces of the clamping pieces by the wall of the taper hole to prevent the clamping pieces from retracting, so that self-locking is formed, meanwhile, extrusion force is generated on the carbon fiber plate by the clamping pieces, friction force is generated between the clamping pieces and the carbon fiber plate, and the effect of anchoring the carbon fiber plate is achieved.
Existing anchors can be divided into two main categories, depending on the interfacial mechanism: epoxy glue anchors and friction mechanical anchors. The epoxy adhesive anchoring system mainly depends on the shearing strength of epoxy resin to resist tensile force, but due to the ageing problem of an epoxy resin curing system in the use process, the durability under dynamic load is difficult to ensure, and meanwhile, the epoxy adhesive anchoring system needs to be completely cured within about one week, so that the construction efficiency is lower. Compared with epoxy adhesive anchoring, the mechanical friction anchoring is performed by using the friction force between the clamping piece and the carbon fiber plate, the aging problem of adhesive is not needed to be considered, and the construction method is simpler and faster.
The centers of the anchorage device, the carbon fiber plate, the jack and other parts are not on the same straight line in the tensioning process, so that the carbon fiber plate is subjected to torsion, shearing and bending damage, and is stretched under the condition of lower tensioning force, so that great potential safety hazards exist. According to the invention, the universal level gauge and the laser centering gauge are arranged on the surface of the anchor plate, so that whether each part is horizontally centered or not and centered can be fed back at any time in the installation and tensioning processes, thereby facilitating the timely adjustment of staff, ensuring the construction safety and improving the problem of low strength utilization rate of carbon fiber materials.
When the carbon fiber plate is clamped by the metal anchor clamp, the requirement on the clamping uniformity is very high, and when the carbon fiber plate is clamped by the existing anchor, the clamping part of the existing anchor can generate stress concentration so as to cause local shearing damage to the carbon fiber plate; or the carbon fiber plate slides out of the anchorage device due to insufficient clamping force in the tensioning process, so that the waste of materials is caused, and the efficiency of site construction is influenced. Accordingly, there is a need for a new clip type anchor that overcomes the above-described drawbacks.
Disclosure of Invention
The invention provides a variable-ripple clamping piece anchorage of a prestress carbon fiber plate, which increases clamping force through clamping piece variable-ripple and clamping piece center arcing design, can still ensure stable anchorage under larger tensile force, and solves the problem that the carbon fiber plate is easy to slip; the anchor can provide uniform and effective clamping force and reduce stress concentration at the end part of the clamping piece.
In order to achieve the above purpose, the invention provides a variable-ripple clamping piece anchorage of a prestress carbon fiber plate, which comprises an anchorage plate, an upper ripple clamping piece, a carbon fiber plate and a lower ripple clamping piece, wherein the upper ripple clamping piece and the lower ripple clamping piece are of wedge-shaped structures, wave crests and wave troughs of waves on the ripple surfaces of the upper ripple clamping piece and the lower ripple clamping piece are tightly attached, the carbon fiber plate is clamped between the upper ripple clamping piece and the lower ripple clamping piece, and the upper ripple clamping piece, the carbon fiber plate and the lower ripple clamping piece form a whole; the anchor plate is provided with a taper hole, the upper corrugated clamping piece and the lower corrugated clamping piece are all arranged in the taper hole in a penetrating mode, and the outer walls of the upper corrugated clamping piece and the lower corrugated clamping piece are attached to the inner wall of the taper hole; the contact surfaces between the upper corrugated clamping piece and the lower corrugated clamping piece and the taper holes adopt a central arcing design.
Preferably, the corrugations on the corrugated surfaces of the upper corrugated clamping piece and the lower corrugated clamping piece are gradually and urgently distributed from the thin end to the thick end of the wedge-shaped structure.
Preferably, the number of the wave teeth on the wave surfaces of the upper wave clamping piece and the lower wave clamping piece is 1-10.
Preferably, the surface roughness value of the corrugated surfaces of the upper corrugated clamping piece and the lower corrugated clamping piece is more than or equal to 6.3.
Preferably, lubricating oil is smeared between the outer walls of the upper corrugated clamping piece and the lower corrugated clamping piece and the inner wall of the taper hole.
Preferably, the materials of the upper corrugated clamping piece, the lower corrugated clamping piece and the anchor plate are low alloy structural steel Q345.
Preferably, the pressing device synchronously applies pressing force to the thick ends of the upper corrugated clamping piece and the lower corrugated clamping piece to perform pre-tightening.
Preferably, the inclination angles of the upper corrugated clamping piece, the lower corrugated clamping piece and the taper hole are 3-6 degrees, and the inclination angles of the upper corrugated clamping piece, the lower corrugated clamping piece and the taper hole are consistent.
Preferably, the carbon fiber plate has a thickness of 1-5mm.
Preferably, the arc starting heights of the upper corrugated clamping piece and the lower corrugated clamping piece from the thin end to the thick end are 0-0.5mm.
Preferably, a universal level is arranged by digging a groove in the center of the upper surface of the anchor plate; and a magnetic attraction type laser centering instrument is arranged at the center of the upper surface of the small hole end of the anchor plate.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the clamping force of the anchorage device is increased through the corrugated clamping piece and the arc striking design of the center of the clamping piece, so that a stable anchoring effect can be ensured under larger stress, and the problem that the carbon fiber plate is easy to slide is solved.
The anchor device can provide uniform and effective clamping force, reduce stress concentration at the end part of the clamping piece and ensure the clamping uniformity of the high-strength fiber plate.
The optimal design angle of the inclination angle of the anchor plate can avoid overlarge stress concentration on the inner wall of the anchor plate and exceeds the ultimate strength of materials; the design of the anchor plate and the clamping piece without angle difference can avoid the anchor plate from generating excessive deformation, reduce the prestress loss and improve the anchoring capacity.
In the invention, the anchor plate and the clamping piece are made of low alloy structural steel Q345, and the steel has certain deformability to improve the stress uniformity of the carbon fiber plate, so that the anchor plate and the clamping piece deform and are tightly attached under the interaction in the tensioning process.
According to the universal level and the laser centering instrument arranged in the center of the upper surface of the anchor plate, whether all parts are horizontally and centrally centered or not can be fed back at any time in the installation and tensioning processes, so that workers can make adjustments in time, the construction safety is ensured, the carbon plate is prevented from being twisted, sheared and bent to be damaged, and the problem of low strength utilization rate of carbon fiber materials is solved; the laser centering instrument can be reused, so that the cost is reduced, and the operation is simple.
The invention eliminates the use of adhesive in the anchorage device, improves the construction efficiency, and has simple manufacture, simple installation, convenient construction, light and handy body and reliable performance.
The invention has convenient transportation, convenient and fast assembly of each part on site, high construction efficiency, and no problems of wire splitting or slipping of the carbon fiber plate in the construction process.
The invention adopts factory standardized production of required materials or parts, has controllable quality and low cost, and is suitable for practical engineering with a large number of reinforced carbon plates.
The invention can be made into various forms, such as figures 4-7, can be used for strengthening and reinforcing bridge engineering and building engineering, and has strong adaptability and wide application range.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic axial cross-section of a variable-corrugation clip anchor holding a carbon fiber sheet;
FIG. 2 is a schematic longitudinal cross-sectional view of a varied corrugation clip anchor holding a carbon fiber sheet;
FIG. 3 is a schematic perspective view of a variable corrugation clip anchor holding a carbon fiber sheet;
FIG. 4 is a schematic perspective view of anchor plate embodiment 1;
FIG. 5 is a schematic perspective view of anchor plate embodiment 2;
FIG. 6 is a schematic perspective view of anchor plate embodiment 3;
FIG. 7 is a schematic perspective view of anchor plate embodiment 4;
in the figure: 1, an anchor plate; 2, a corrugated clamping piece is arranged on the upper part; 3, lower corrugated clamping pieces; 4 carbon fiber plates; 5, chamfering smooth round corners; 6, universal level gauge; 7 laser centering instrument.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
As shown in fig. 1 to 7, the present embodiment provides a variable-corrugation clamping piece anchor for a prestressed carbon fiber board, which comprises an anchor board 1, an upper corrugation clamping piece 2, a carbon fiber board 4 and a lower corrugation clamping piece 3, wherein the upper corrugation clamping piece 2 and the lower corrugation clamping piece 3 are in a wedge-shaped structure, and a small hole end of the anchor board and a corrugated surface end of the clamping piece are provided with smooth fillets 5;
the wave crests and wave troughs of the waves on the wave surfaces of the upper wave clamping piece 2 and the lower wave clamping piece 3 are tightly attached, the carbon fiber plate 4 is clamped between the upper wave clamping piece 2 and the lower wave clamping piece 3, and the upper wave clamping piece 2, the carbon fiber plate 4 and the lower wave clamping piece 3 form a whole; the clamping device can reliably and effectively clamp the carbon fiber board 4 with the thickness of 1-5 mm; the waves on the wave surface are gradually and rapidly distributed from the thin end to the thick end, the waves are mainly distributed at the middle and rear parts of the clamping pieces, and the number of the wave teeth is 1-10;
the anchor plate 1 is provided with a taper hole, the upper corrugated clamping piece 2 and the lower corrugated clamping piece 3 are all arranged in the taper hole in a penetrating way, specifically, the upper corrugated clamping piece 2 and the lower corrugated clamping piece 3 are synchronously applied with a jacking pressure by a jacking device to enter the taper hole together, friction force is generated on the inclined surfaces of the clamping pieces by the wall of the taper hole to prevent the clamping pieces from retracting, so that self-locking is formed, meanwhile, extrusion force is generated on the carbon fiber plate 4 by the clamping pieces, friction force is generated between the clamping pieces and the carbon fiber plate 4, and the effect of anchoring the carbon fiber plate 4 is achieved;
the outer walls of the upper corrugated clamping piece 2 and the lower corrugated clamping piece 3 are attached to the inner wall of the taper hole, wherein the attaching surfaces of the upper corrugated clamping piece 2 and the lower corrugated clamping piece 3 and the taper hole adopt a central arcing design, and the arcing heights of the upper corrugated clamping piece 2 and the lower corrugated clamping piece 3 from thin ends to thick ends are consistent and are 0-0.5mm. The method greatly increases the clamping force of the upper corrugated clamping piece 2 and the lower corrugated clamping piece 3, can keep the clamping uniformity of the carbon fiber plate 4, and overcomes the problems that the carbon fiber sheet is easy to slip and the strength utilization rate is not high when the carbon fiber sheet is reinforced and stressed; further, when in use, lubricating oil is smeared on the joint surface so as to reduce the friction force of the contact surface of the clamping piece and the anchor plate 1; the corrugated surfaces of the upper corrugated clamping piece 2 and the lower corrugated clamping piece 3 are subjected to grooving or embossing treatment, and the roughness of the corrugated surfaces is increased by uniformly spraying silicon carbide, wherein the surface roughness value is more than or equal to 6.3. The roughness of the corrugated surface is increased, the friction force and mechanical biting force with the carbon fiber plate 4 can be greatly increased, the carbon fiber plate 4 is effectively prevented from sliding, the anchoring capability is greatly improved, and the reliability and the effectiveness of the anchorage are improved. The operation of the two contact surfaces can lead the upper corrugated clamping piece 2, the lower corrugated clamping piece 3 and the carbon fiber plate 4 to be integrated, the integrated body synchronously advances in the anchor plate 1 under the action of stretching force, and finally the integrated anchoring of the anchor plate 1, the upper corrugated clamping piece 2, the lower corrugated clamping piece 3 and the carbon fiber plate 4 is realized.
The inclination angles of the upper corrugated clamping piece 2, the lower corrugated clamping piece 3 and the taper hole are 3-6 degrees, and the inclination angles of the clamping pieces are consistent with those of the anchor plate 1; the method can avoid the overlarge deformation of the anchor plate 1, reduce the prestress loss and improve the anchoring capacity.
The upper corrugated clamping piece 2, the lower corrugated clamping piece 3 and the anchor plate 1 are made of low alloy structural steel Q345, and the anchor plate and the clamping piece are deformed and attached more tightly after interaction.
The universal level 6 is arranged by digging the center of the upper surface of the anchor plate 1, and the magnetic laser centering instrument 7 is arranged at the center of the upper surface of the small hole end of the anchor plate 1, so that whether each part is horizontally centered or not can be fed back at all times in the installation and tensioning processes, the staff can make adjustment in time, the construction safety is ensured, the problem that the strength utilization rate of the carbon fiber material is low is solved, and the carbon fiber plate 4 is prevented from being twisted, sheared and bent; the groove of the universal level gauge mounted on the upper surface of the anchor plate is horizontally calibrated before leaving the factory; the positioning line is arranged at the center of the upper surface of the small hole end of the anchor plate so as to be convenient for installing the magnetic attraction type laser centering instrument.
The specifications-dimensions-forms of the anchor plate 1, the upper corrugated clamping piece 2, the lower corrugated clamping piece 3 and the carbon fiber plate 4 are determined according to the actual requirement of the reinforcement member when the invention is applied to engineering.
The invention is used for bending resistance reinforcement and crack control of large-span structures, beams and plates in bridge engineering and building engineering, and has strong adaptability and wide application range.
The invention eliminates the use of adhesive in the anchorage device, improves the construction efficiency, and has simple manufacture, simple installation, convenient construction, light and handy body and reliable performance.
The invention has the advantages of convenient transportation, convenient and fast field assembly of each part, high construction efficiency, no problems of carbon fiber board wire splitting or slipping and the like in the construction process.
The invention adopts factory standardized production of required materials or parts, has controllable quality and low cost, and is suitable for practical engineering with a large number of reinforced carbon fiber plates.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention and not for limiting it, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that: the technical scheme of the invention can be modified or replaced by the same, and the modified technical scheme cannot deviate from the spirit and scope of the technical scheme of the invention.
Claims (10)
1. The variable-ripple clamping piece anchorage device for the prestressed carbon fiber plate is characterized by comprising an anchorage plate, an upper ripple clamping piece, a carbon fiber plate and a lower ripple clamping piece, wherein the upper ripple clamping piece and the lower ripple clamping piece are of wedge-shaped structures, wave crests and wave troughs of waves on the ripple surfaces of the upper ripple clamping piece and the lower ripple clamping piece are tightly attached, the carbon fiber plate is clamped between the upper ripple clamping piece and the lower ripple clamping piece, and the upper ripple clamping piece, the carbon fiber plate and the lower ripple clamping piece form a whole; the anchor plate is provided with a taper hole, the upper corrugated clamping piece and the lower corrugated clamping piece are all arranged in the taper hole in a penetrating mode, and the outer walls of the upper corrugated clamping piece and the lower corrugated clamping piece are attached to the inner wall of the taper hole; the contact surfaces between the upper corrugated clamping piece and the lower corrugated clamping piece and the taper holes adopt a central arcing design.
2. The varied corrugation clip anchorage of the prestressed carbon fiber plate of claim 1, wherein: the corrugations on the corrugated surfaces of the upper corrugated clamping piece and the lower corrugated clamping piece are gradually and urgently distributed from the thin end to the thick end of the wedge-shaped structure; preferably, the number of the wave teeth on the wave surfaces of the upper wave clamping piece and the lower wave clamping piece is 1-10.
3. The varied corrugation clip anchorage of the prestressed carbon fiber plate of claim 2, wherein: the center of the upper surface of the anchor plate is grooved and provided with a universal level gauge; and a magnetic attraction type laser centering instrument is arranged at the center of the upper surface of the small hole end of the anchor plate.
4. A varied corrugation clip anchorage for prestressed carbon fiber boards as claimed in claim 3, wherein: the surface roughness values of the corrugated surfaces of the upper corrugated clamping piece and the lower corrugated clamping piece are more than or equal to 6.3.
5. The varied corrugation clip anchorage of the prestressed carbon fiber plate of claim 4, wherein: lubricating oil is smeared between the outer walls of the upper corrugated clamping piece and the lower corrugated clamping piece and the inner wall of the taper hole.
6. The varied corrugation clip anchorage of the prestressed carbon fiber plate of claim 5, wherein: the upper corrugated clamping piece, the lower corrugated clamping piece and the anchor plate are made of low alloy structural steel Q345.
7. The varied corrugation clip anchorage of the prestressed carbon fiber plate of claim 6, wherein: and synchronously applying a jacking force to the thick ends of the upper corrugated clamping piece and the lower corrugated clamping piece through a jacking device to pretighten.
8. The varied-corrugation clip anchorage of prestressed carbon fiber boards of claim 1 or 7, wherein: the inclination angles of the upper corrugated clamping piece, the lower corrugated clamping piece and the taper hole are 3-6 degrees, and the three inclination angles are kept consistent.
9. The varied corrugation clip anchorage of the prestressed carbon fiber plate of claim 8, wherein: the thickness of the carbon fiber plate is 1-5mm.
10. The varied-corrugation clip anchorage of prestressed carbon fiber boards of claim 1 or 7, wherein: the arc starting height of the upper corrugated clamping piece is consistent with that of the lower corrugated clamping piece from the thin end to the thick end, and the arc starting height is 0-0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311551646.4A CN117489044A (en) | 2023-11-21 | 2023-11-21 | Variable-ripple clamping piece anchorage device for prestressed carbon fiber plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311551646.4A CN117489044A (en) | 2023-11-21 | 2023-11-21 | Variable-ripple clamping piece anchorage device for prestressed carbon fiber plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117489044A true CN117489044A (en) | 2024-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311551646.4A Pending CN117489044A (en) | 2023-11-21 | 2023-11-21 | Variable-ripple clamping piece anchorage device for prestressed carbon fiber plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117489044A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201421333Y (en) * | 2009-05-12 | 2010-03-10 | 中国建筑土木建设有限公司 | Infrared centering instrument |
| CN101851985A (en) * | 2010-05-27 | 2010-10-06 | 卓清 | Articulated anchor and prestress tensioning method of high strength fibre composite sheet |
| CN203160543U (en) * | 2013-03-22 | 2013-08-28 | 柳州欧维姆机械股份有限公司 | Arc-surface carbon-fiber board clamping piece |
| CN204510623U (en) * | 2015-04-02 | 2015-07-29 | 招商局重庆交通科研设计院有限公司 | Carbon beaverboard anchorage |
| CN107542272A (en) * | 2017-09-25 | 2018-01-05 | 沈阳工业大学 | Novel portable prestressed draw-bar tensioning equipment |
| CN113931085A (en) * | 2021-10-19 | 2022-01-14 | 上海悍马建筑科技有限公司 | Device and method for vertically tensioning prestressed carbon fiber plate |
| CN217764888U (en) * | 2022-07-27 | 2022-11-08 | 深蓝工业自动控制设备邢台有限公司 | High-precision centering instrument |
| CN116591396A (en) * | 2023-06-20 | 2023-08-15 | 长沙理工大学 | Overhanging clamp type anchorage device for prestressed carbon plate |
-
2023
- 2023-11-21 CN CN202311551646.4A patent/CN117489044A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201421333Y (en) * | 2009-05-12 | 2010-03-10 | 中国建筑土木建设有限公司 | Infrared centering instrument |
| CN101851985A (en) * | 2010-05-27 | 2010-10-06 | 卓清 | Articulated anchor and prestress tensioning method of high strength fibre composite sheet |
| CN203160543U (en) * | 2013-03-22 | 2013-08-28 | 柳州欧维姆机械股份有限公司 | Arc-surface carbon-fiber board clamping piece |
| CN204510623U (en) * | 2015-04-02 | 2015-07-29 | 招商局重庆交通科研设计院有限公司 | Carbon beaverboard anchorage |
| CN107542272A (en) * | 2017-09-25 | 2018-01-05 | 沈阳工业大学 | Novel portable prestressed draw-bar tensioning equipment |
| CN113931085A (en) * | 2021-10-19 | 2022-01-14 | 上海悍马建筑科技有限公司 | Device and method for vertically tensioning prestressed carbon fiber plate |
| CN217764888U (en) * | 2022-07-27 | 2022-11-08 | 深蓝工业自动控制设备邢台有限公司 | High-precision centering instrument |
| CN116591396A (en) * | 2023-06-20 | 2023-08-15 | 长沙理工大学 | Overhanging clamp type anchorage device for prestressed carbon plate |
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