CN117127757A - FRP rib clip type anchorage and anchoring method - Google Patents
FRP rib clip type anchorage and anchoring method Download PDFInfo
- Publication number
- CN117127757A CN117127757A CN202310866035.2A CN202310866035A CN117127757A CN 117127757 A CN117127757 A CN 117127757A CN 202310866035 A CN202310866035 A CN 202310866035A CN 117127757 A CN117127757 A CN 117127757A
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- clamping piece
- groove
- frp
- frp rib
- diameter
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- 238000004873 anchoring Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 11
- 125000006850 spacer group Chemical group 0.000 claims abstract description 9
- 210000002435 tendon Anatomy 0.000 claims description 14
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 92
- 239000011151 fibre-reinforced plastic Substances 0.000 description 92
- 239000003822 epoxy resin Substances 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 5
- 229920000647 polyepoxide Polymers 0.000 description 5
- 239000002131 composite material Substances 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 210000005069 ears Anatomy 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229920002748 Basalt fiber Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 230000001360 synchronised effect Effects 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention discloses an FRP rib clip type anchorage device and an anchorage method, wherein the anchorage device comprises an anchor cup (2), a clip type clip (3), a fastener (4) and a gasket (5); a first through groove (201) with a large diameter at one end and a small diameter at the other end is formed in the anchor cup, and the first through groove coaxially penetrates through the anchor cup along the axial direction of the anchor cup; the outer surface of the split type clamping piece is of a conical structure with one end having a large diameter and the other end having a small diameter, so that the split type clamping piece is coaxially embedded in the first through groove of the anchor cup; a second through groove (301) with equal diameter is formed in the split type clamping piece, so that the FRP rib coaxially penetrates through the anchor cup and the split type clamping piece through the second through groove; the fastener is clamped on the free end of the FRP rib, and the fastener is pressed on the big end of the split clamping piece through the spacer. The invention can solve the problems that the FRP rib is easy to be damaged by fatigue at the notch, and the clamping piece cannot follow in time, so that the anchoring effect is caused, and the bonding operation is inconvenient in the prior art.
Description
Technical Field
The invention relates to the field of civil construction, in particular to an FRP rib clip type anchorage device and an anchorage method.
Background
FRP (Fiber Reinforced Plastics) the bar is obtained by soaking multiple strands of continuous fibers (such as carbon fiber, glass fiber, basalt fiber, etc.) in matrix polymer, extruding, molding, and solidifying at high temperature. The FRP rib has the excellent mechanical properties of light weight, high strength, difficult corrosion, good fatigue resistance and the like, and has wide application space in the aspects of structural reinforcement, prestressed concrete structures, bridge guy ropes and the like.
The efficient anchoring of FRP bars, especially prestressed FRP bars, has been a technical problem of great concern. At present, the anchorage device of the FRP rib mainly comprises an adhesive type anchorage device, a clamping piece type anchorage device, a composite type anchorage device and the like. Chinese patent application CN115370073a discloses a clip-bonded composite anchorage for anchoring carbon fiber ribs, comprising a clip, an extrusion sleeve, a connecting sleeve, a conical anchor cavity and epoxy resin; the extrusion sleeve is sleeved on the clamping piece, and pretightening force is applied to the clamping piece to form an extrusion section of the anchorage device; the epoxy resin is poured into the cavity of the conical anchor cavity to form a bonding section of the anchor; the extrusion sleeve and the conical anchor cavity are connected into a whole through the connecting sleeve to form a composite anchor structure.
The clamping piece is mainly used for clamping the FRP rib to play an anchoring role, but the transverse shearing strength of the FRP rib is lower, and stress concentration can occur at the incision of the end part of the anchorage device when the FRP rib is pulled, so that the FRP rib is damaged and is easy to fatigue damage. When the FRP rib is pulled, the clamping piece needs to follow up in time to ensure that the FRP rib is gradually clamped by the clamping piece, but the clamping piece cannot be guaranteed to follow up in time in practical application, very large pretightening force is usually required to be applied or epoxy resin is poured in operation, but the stress and the anchoring effect of the FRP rib are also influenced by the excessive pretightening force, and the pouring operation of the epoxy resin is inconvenient.
Therefore, it is necessary to provide a clamping piece type anchorage device and an anchoring method for FRP ribs, which can solve the problems that the FRP ribs are easy to be damaged by fatigue at the incision, the clamping piece cannot follow in time, the anchoring effect is caused, and the bonding operation is inconvenient in the prior art.
Disclosure of Invention
The invention aims to provide a clamping piece type anchorage device of FRP (fiber reinforced Plastic) ribs and an anchoring method, which can solve the problems that the FRP ribs are easy to fatigue damage at a notch, and the clamping piece cannot follow in time, so that the anchoring effect is caused, and the bonding operation is inconvenient in the prior art.
The invention is realized in the following way:
a FRP rib clip type anchorage comprises an anchorage cup, a clip type clip, a fastener and a pad; a first through groove with one large diameter end and the other small diameter end is formed in the anchor cup, and the first through groove coaxially penetrates through the anchor cup along the axial direction of the anchor cup; the outer surface of the split type clamping piece is of a conical structure with one end having a large diameter and the other end having a small diameter, so that the split type clamping piece is coaxially embedded in the first through groove of the anchor cup; a second through groove with equal diameter is formed in the split type clamping piece, so that the FRP rib coaxially penetrates through the anchor cup and the split type clamping piece through the second through groove; the fastener is clamped on the free end of the FRP rib, and the fastener is pressed on the big end of the split clamping piece through the spacer.
The axial section side line of the first through groove is of an arc-shaped structure, the slope of the arc tangent line at the big end of the first through groove is the largest, and the slope of the arc tangent line at the small end of the first through groove is 0.
The initial inclination angle of the inner cone at the big end of the first through groove is not more than 4 degrees, and the radius of the circular arc of the small end of the first through groove is 3000-4000mm.
The split type clamping piece comprises a plurality of unit clamping pieces, the cross section of each unit clamping piece is of a fan ring structure, the plurality of unit clamping pieces are spliced to form a circular ring structure, the outer ring of each unit clamping piece is matched and pressed on the inner wall of the first through groove, and the inner ring of each unit clamping piece is clamped on the FRP rib.
The diameter of the inner ring of the unit clamping piece, namely the diameter of the second through groove, is smaller than the diameter of the FRP rib.
The fastener comprises a hoop, an ear plate and a locking piece; the pair of ear plates are respectively connected to two ends of the semicircular hoops, the pair of hoops are matched and clasped on the FRP rib, and the ear plates at the two ends of the pair of hoops are mutually attached; the ear plates are provided with mounting holes, so that the locking piece penetrates through the two mutually-attached ear plates through the mounting holes and is locked and fixed.
The inner diameter of the anchor ear is smaller than the diameter of the FRP rib.
The gasket is of a circular ring structure, the diameter of the inner ring of the gasket is larger than that of the FRP rib, and the outer diameter of the gasket is smaller than that of the large head end of the split clamping piece.
An anchoring method of an FRP rib clip type anchorage device comprises the following steps:
step 1: penetrating the FRP rib through the first through groove of the anchor cup, and enabling the free end of the FRP rib to extend outwards of the big end of the anchor cup;
step 2: the split type clamping piece is sleeved on the FRP rib, and the small end of the split type clamping piece is inserted into the large end of the first through groove and is pressed manually;
step 3: the spacer is penetrated through the free end of the FRP rib and attached to the big end of the split clamping piece;
step 4: the fastener is fixed on the free end of the FRP rib in a binding way and pressed on the gasket;
step 5: and pre-tensioning the FRP rib, so that the fastener compresses the gasket on the large end of the split clamping piece, and the split clamping piece is pressed into the first through groove until the anchoring of the FRP rib is completed.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, as the anchor cup and the split type clamping piece are arranged, the anchor cup can gradually clamp the FRP rib through the split type clamping piece by virtue of the optimization design of the arc-shaped structure of the first arc-shaped through groove in the anchor cup and the outer surface of the split type clamping piece, and meanwhile, the stress concentration of the FRP rib at the notch can be reduced, the damage to the FRP rib caused by clamping the clamping piece is reduced, the problem of fatigue damage of the FRP rib in the prior art is avoided, the anchoring effect is ensured, the bonding mode such as epoxy resin pouring and the like is avoided, and the anchoring and mounting procedures of the FRP rib are simplified.
2. The fastener is arranged, and is fixed on the free end of the FRP rib, so that the fastener pushes the split clamping piece into the first through groove of the anchor cup through the gasket when the FRP rib is pretensioned, the clamping piece can synchronously follow up when the FRP rib is tensioned and deformed, the FRP rib is prevented from sliding out of the anchor cup, and the efficient anchoring and the anchoring effect of the FRP rib are ensured.
Drawings
FIG. 1 is an axial cross-sectional view of the FRP tendon clip type anchorage of the present invention;
FIG. 2 is a radial cross-sectional view of the FRP tendon clip type anchorage of the present invention;
FIG. 3 is a schematic view of the structure of the FRP tendon, anchor cup and split type clip in the FRP tendon clip type anchorage device of the invention;
FIG. 4 is a perspective view of a fastener in the FRP tendon clip type anchorage of the present invention;
fig. 5 is a side view of the installation of the fastener in the FRP tendon clip anchor of the present invention.
In the figure, 1FRP rib, 2 anchor cup, 201 first through groove, 3 burst formula clamping pieces, 301 second through groove, 302 unit clamping pieces, 4 fastener, 401 staple bolt, 402 otic placode, 403 retaining member, 404 mounting hole, 5 gasket.
Detailed Description
The invention will be further described with reference to the drawings and the specific examples.
Referring to fig. 1 and 2, an FRP rib clip type anchorage device comprises an anchorage cup 2, a clip type clip 3, a fastener 4 and a spacer 5; a first through groove 201 with a large diameter at one end and a small diameter at the other end is formed in the anchor cup 2, and the first through groove 201 coaxially penetrates through the anchor cup 2 along the axial direction of the anchor cup 2; the outer surface of the split type clamping piece 3 is of a conical structure with one end having a large diameter and the other end having a small diameter, so that the split type clamping piece 3 is coaxially embedded in the first through groove 201 of the anchor cup 2; a second through groove 301 with equal diameter is formed in the split type clamping piece 3, so that the FRP rib 1 coaxially penetrates through the anchor cup 2 and the split type clamping piece 3 through the second through groove 301; the fastener 4 is clamped on the FRP rib 1 at the free end, and the fastener 4 is pressed on the large end of the split type clamping piece 3 through the spacer 5.
The FRP rib 1 is fixedly clamped on the free end through the fastener 4, and when the FRP rib 1 is pretensioned, the fastener 4 pushes the gasket 5 to be tightly attached to the big end of the split type clamping piece 3. Continuing to pretension the FRP rib 1, enabling the fastener 4 to push the spacer 5 and the split type clamping piece 3 to be extruded into the first through groove 201 of the anchor cup 2, and along with extrusion of the split type clamping piece 3, utilizing the variable diameter structure of the split type clamping piece 3 and the first through groove 201 to realize clamping and anchoring of the split type clamping piece 3 to the FRP rib 1.
Referring to fig. 3, the axial cross-section side line of the first through groove 201 has an arc structure, and the slope of the arc tangent line at the big end of the first through groove 201 is the largest, and the slope of the arc tangent line at the small end of the first through groove 201 is 0.
The clamping of the split type clamping pieces 3 is gradually achieved by utilizing the reducing of the first through groove 201 with the arc-shaped structure, so that the split type clamping pieces 3 clamp and anchor the FRP rib 1, the stress concentration of the FRP rib at the notch is reduced, and the damage to the FRP rib caused by clamping the clamping pieces is reduced.
The outer wall shape of the split clip 3 is matched and made into an arc-shaped structure according to the shape of the first through groove 201.
Preferably, the initial inclination angle of the inner cone at the big end of the first through groove 201 is not more than 4 degrees, and the radius of the circular arc at the small end of the first through groove 201 is 3000-4000mm.
The specific size of the first through groove 201 can be adaptively adjusted according to the specification of the FRP rib 1 to be anchored. The circle center corresponding to the circular arc is on the straight line perpendicular to the end part of the anchor cup 2, and the radius R of the circular arc is not too small.
Referring to fig. 2, the split type clamping piece 3 includes a plurality of unit clamping pieces 302, the cross section of the unit clamping piece 302 is in a fan-shaped ring structure, and the plurality of unit clamping pieces 302 are spliced to form a circular ring structure, so that the outer ring of the unit clamping piece 302 is matched and pressed on the inner wall of the first through groove 201, and the inner ring of the unit clamping piece 302 is clamped on the FRP rib 1.
As the plurality of unit clips 302 are synchronously pushed and extruded into the first through groove 201, the plurality of unit clips 302 are mutually extruded and pressed between the FRP rib 1 and the first through groove 201, so that the FRP rib 1 is clamped and anchored.
The outer ring size of the unit clip 302 is determined according to the size of the first through groove 201, and the inner ring size of the unit clip 302 is determined according to the size of the FRP rib 1 to be anchored. Preferably, the unit clamping pieces 302 are provided with three pieces, the fan-shaped angle of each unit clamping piece 302 is 120 degrees, the structure is symmetrical, and the stress is uniform and stable.
The diameter of the inner ring of the unit clamping piece 302, namely the diameter of the second through groove 301, is slightly smaller than the diameter of the FRP rib 1.
The unit clamping piece 302 moves axially towards the first through groove 201 after receiving the axial pre-tightening force, so that the first through groove 201 generates radial compression force on the unit clamping piece 302, and the inner ring of the unit clamping piece 302 with smaller size can anchor the FRP rib 1 under the action of the radial compression force.
Referring to fig. 4 and 5, the fastener 4 includes a hoop 401, an ear plate 402 and a locking member 403; the pair of ear plates 402 are respectively connected to two ends of the semicircular hoops 401, the pair of hoops 401 are matched and clasped on the FRP rib 1, and the ear plates 402 at the two ends are mutually attached; the ear plates 402 are formed with mounting holes 404, so that the locking members 403 penetrate through the two ear plates 402 that are mutually attached through the mounting holes 404 and are locked and fixed by nuts.
The pair of anchor ears 401 are enmeshed on the FRP rib 1, and the lug plate 402 is locked and fixed through the locking pieces 403 such as bolts and nuts, so that the fastener 4 is ensured not to move relatively with the FRP rib 1 when the FRP rib 1 is pretensioned, and the gasket 4 and the clamping piece 5 are pushed to move into the first through groove 201 by the fastener 4.
The inner diameter of the anchor ear 401 is slightly smaller than the diameter of the FRP rib 1, so that the reliable cohesion of the pile of anchor ears 401 to the FRP rib 1 is further ensured, and the synchronous follow-up of the split type clamping pieces 3 along with the pretension of the FRP rib 1 is ensured.
The gasket 5 is of a circular ring structure, the diameter of the inner ring of the gasket 5 is slightly larger than that of the FRP rib 1, and the outer diameter of the gasket 5 is slightly smaller than that of the large head end of the split clamping piece 3.
Preferably, the diameter of the inner ring of the gasket 5 and the inner diameter of the anchor ear 401 are 1mm larger than the diameter of the FRP rib 1, so that the gasket 5 can be sleeved on the FRP rib 1, and the acting force of the fastener 4 on each unit clamping piece 302 of the split type clamping piece 3 is improved to be uniform and stable.
Referring to fig. 1 to 5, an anchoring method of a clip-type anchor of an FRP tendon comprises the following steps:
step 1: the FRP rib 1 penetrates through the first through groove 201 of the anchor cup 2, and the free end of the FRP rib 1 extends out of the big end of the anchor cup 2.
The extension length of the free end of the FRP rib 1 can be determined according to the installation requirements of the fastener 4 and the spacer 5.
Step 2: the split type clamping piece 3 is sleeved on the FRP rib 1, and the small end of the split type clamping piece 3 is inserted into the large end of the first through groove 201 and is pressed manually.
At this time, the large ends of the unit clips 302 of the clip 3 are located in the same plane, and the small ends are also located in the same plane. After the split type clamping piece 3 is manually pressed, the FRP rib 1, the anchor cup 2 and the split type clamping piece 3 are preliminarily fixed.
Step 3: the spacer 5 passes through the free end of the FRP rib 1 and is attached to the large end of the split clip 3.
Step 4: the fastener 4 is fixed on the free end of the FRP rib 1 in a binding way and pressed on the gasket 5.
Step 5: the FRP rib 1 is pretensioned, the fastening piece 4 is used for pressing the gasket 5 on the large end of the split type clamping piece 3, and the split type clamping piece 3 is pressed into the first through groove 201 until the FRP rib 1 is anchored.
When the FRP rib 1 is pretensioned, the fastener 4 and the gasket 5 are used for pressing the split clamping piece 3, so that the split clamping piece 3 is ensured to follow up synchronously along with pretension of the FRP rib 1, and effective anchoring of the FRP rib 1 is realized.
The foregoing description of the preferred embodiments of the invention is not intended to limit the scope of the invention, and therefore, any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (9)
1. A FRP rib clip type anchorage device is characterized in that: comprises an anchor cup (2), a piece-type clamping piece (3), a fastener (4) and a gasket (5); a first through groove (201) with a large diameter at one end and a small diameter at the other end is formed in the anchor cup (2), and the first through groove (201) coaxially penetrates through the anchor cup (2) along the axial direction of the anchor cup (2); the outer surface of the split type clamping piece (3) is of a conical structure with one end having a large diameter and the other end having a small diameter, so that the split type clamping piece (3) is coaxially embedded in a first through groove (201) of the anchor cup (2); a second through groove (301) with equal diameter is formed in the split type clamping piece (3), so that the FRP rib (1) coaxially penetrates through the anchor cup (2) and the split type clamping piece (3) through the second through groove (301); the fastener (4) is clamped on the free end of the FRP rib (1), and the fastener (4) is tightly pressed on the big end of the split clamping piece (3) through the gasket (5).
2. The FRP tendon clip-on anchorage as claimed in claim 1, which is characterized in that: the axial section side line of the first through groove (201) is in an arc-shaped structure, the slope of an arc tangent line at the big end of the first through groove (201) is the largest, and the slope of an arc tangent line at the small end of the first through groove (201) is 0.
3. The FRP tendon clip-on anchorage as claimed in claim 2, which is characterized in that: the initial inclination angle of the inner cone at the big end of the first through groove (201) is not more than 4 degrees, and the radius of the circular arc of the small end of the first through groove (201) is 3000-4000mm.
4. The FRP tendon clip-on anchorage as claimed in claim 1, which is characterized in that: the split type clamping piece (3) comprises a plurality of unit clamping pieces (302), the cross section of each unit clamping piece (302) is of a fan ring structure, the unit clamping pieces (302) are spliced to form a circular ring structure, the outer ring of each unit clamping piece (302) is matched and pressed on the inner wall of the first through groove (201), and the inner ring of each unit clamping piece (302) is clamped on the FRP rib (1).
5. The FRP tendon clip-on anchorage as claimed in claim 4, which is characterized in that: the diameter of the inner ring of the unit clamping piece (302), namely the diameter of the second through groove (301), is smaller than the diameter of the FRP rib (1).
6. The FRP tendon clip-on anchorage as claimed in claim 1, which is characterized in that: the fastener (4) comprises a hoop (401), an ear plate (402) and a locking piece (403); the pair of ear plates (402) are respectively connected to two ends of the semicircular hoops (401), the pair of hoops (401) are matched and enfolded on the FRP rib (1), and the ear plates (402) at the two ends of the hoops are mutually attached; the lug plates (402) are provided with mounting holes (404), so that the locking pieces (403) penetrate through the two lug plates (402) which are mutually attached through the mounting holes (404) and are locked and fixed.
7. The FRP tendon clip-on anchorage as claimed in claim 6, which is characterized in that: the inner diameter of the anchor ear (401) is smaller than the diameter of the FRP rib (1).
8. The FRP tendon clip-on anchorage as claimed in claim 1, which is characterized in that: the gasket (5) is of a circular ring structure, the diameter of the inner ring of the gasket (5) is larger than that of the FRP rib (1), and the outer diameter of the gasket (5) is smaller than that of the large head end of the split clamping piece (3).
9. An anchoring method of the FRP rib clip type anchorage device, which is characterized in that: the method comprises the following steps:
step 1: penetrating the FRP rib (1) through a first through groove (201) of the anchor cup (2), and extending the free end of the FRP rib (1) to the outside of the big end of the anchor cup (2);
step 2: the split type clamping piece (3) is sleeved on the FRP rib (1), and the small end of the split type clamping piece (3) is inserted into the large end of the first through groove (201) and is pressed manually;
step 3: the spacer (5) passes through the free end of the FRP rib (1) and is attached to the big end of the split clamping piece (3);
step 4: the fastener (4) is fixed on the free end of the FRP rib (1) in a clasping way and is pressed on the gasket (5);
step 5: the FRP rib (1) is pretensioned, the fastener (4) presses the gasket (5) on the big end of the split type clamping piece (3), and the split type clamping piece (3) is pressed into the first through groove (201) until the FRP rib (1) is anchored.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310866035.2A CN117127757A (en) | 2023-07-14 | 2023-07-14 | FRP rib clip type anchorage and anchoring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310866035.2A CN117127757A (en) | 2023-07-14 | 2023-07-14 | FRP rib clip type anchorage and anchoring method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117127757A true CN117127757A (en) | 2023-11-28 |
Family
ID=88857265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310866035.2A Pending CN117127757A (en) | 2023-07-14 | 2023-07-14 | FRP rib clip type anchorage and anchoring method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117127757A (en) |
-
2023
- 2023-07-14 CN CN202310866035.2A patent/CN117127757A/en active Pending
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