CN108004926A - Large-tonnage FRP inhaul cable anchoring process - Google Patents
Large-tonnage FRP inhaul cable anchoring process Download PDFInfo
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- CN108004926A CN108004926A CN201711239653.5A CN201711239653A CN108004926A CN 108004926 A CN108004926 A CN 108004926A CN 201711239653 A CN201711239653 A CN 201711239653A CN 108004926 A CN108004926 A CN 108004926A
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- Prior art keywords
- inhaul cable
- frp inhaul
- transfer medium
- frp
- load transfer
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- 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
- 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
- E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
Abstract
The invention discloses a kind of large-tonnage FRP inhaul cable anchoring process, step is：A taper variation rigidity load transfer medium is formed in FRP inhaul cable anchorage zone；Wherein, the silvalin of variation rigidity load transfer medium along the segmentation winding of FRP inhaul cable anchorage zone length direction is heating and curing through molding to form, and different sections form variation rigidity load using different types of silvalin, and silvalin is handled before winding through resin infiltration；If along the axially cutting arterial highway joint-cutting of variation rigidity load transfer medium；Anchored using the cone anchorage being adapted with taper variation rigidity load transfer medium.This anchoring process have it is simple for production, easily controllable, coordinate good stress performance, anchoring efficiency high and load transfer medium rigidity consecutive variations and it is more uniform many advantages, such as.The fiber content of variation rigidity load transfer medium and lateral stiffness bootstrap loading end to free end gradually increase, it can alleviate or eliminate " notch effect " of the FRP inhaul cable in loading end, avoid the lateral shear that stress concentration causes large-tonnage FRP inhaul cable from destroying prior to tensile failure.
Description
Technical field
The present invention relates to a kind of large-tonnage FRP inhaul cable anchoring process skill using monolithic devices variation rigidity load transfer medium
Art, belongs to large-tonnage FRP inhaul cable anchorage technology field.
Background technology
Fibre reinforced composites（Fiber Reinforced Polymer, FRP）It is using fiber as reinforcing material, with tree
Fat is basis material, and fills the auxiliary materials such as size, a kind of advanced composite material (ACM) formed through pultrude process.FRP has
Lightweight, high-strength, corrosion-resistant, endurance and many excellent properties such as damping performance is good, are replacement reinforcing bars in civil engineering structure
Ideal material, has been answered in the structure such as the reinforcing of existing structure and newly building bridge, sea port dock, islands and reefs construction at present
With.
The fatigue rupture of Loads of Long-span Bridges steel cable, corrosion resistance deficiency and dead weight it is excessive caused by big sag the problems such as
It is increasingly becoming an important factor for jeopardizing bridge safty and reliability.FRP material is due to lightweight, high-strength, corrosion-resistant and resistance to
The good characteristics such as fatigue, therefore it has been increasingly becoming the desirable alternative material of Loads of Long-span Bridges drag-line.But how effectively to establish safety
Reliable FRP inhaul cable anchoring system is still to limit the bottleneck problem that FRP material is applied in Loads of Long-span Bridges.At present, it is common
FRP inhaul cable anchorage form mainly has：Binding type anchorage, friction-type anchorage and intermediate plate type anchorage.
Bond type anchorage is that FRP inhaul cable body is bonded integral, work with outer sleeve by binding materials such as resins
When depend on the anti-shearing deformability of binding material.This anchorage style is clear and definite with stress, and binding material is to FRP
Drag-line body not damaged, as long as ensureing enough anchorage lengths and the degree of roughness on drag-line surface, the anchoring of drag-line can just obtain
To realize.But it is weaker etc. no that the anchoring process still suffers from, and process for filling colloid is complicated, resin creep deforms excessive and resisting fatigue performance
Foot, and with the increase of anchoring tonnage, anchorage length and installation difficulty also accordingly dramatically increase.
Friction anchorage device is that expanding material is irrigated between FRP inhaul cable and casing, and the expanding material after curing can be to casing
Interior FRP inhaul cable surface forms precompression, to increase the frictional force on FRP inhaul cable surface, so as to fulfill effective anchor of FRP inhaul cable
Gu.But the anchorage style still suffers from, and expanding material compression strength itself is limited, anchorage length compared with it is long, required space is big, in fatigue
Load, long-term hold expanding material performance under the effects such as lotus and many deficiencies such as be difficult to ensure that.
Strand tapered anchorage is usually used in the anchoring of prestress wire, and wedge-shaped steel clamp piece follows up in anchor cup with steel strand wires, from
And larger extruding force is produced to realize the anchoring of steel strand wires.When strand tapered anchorage is applied to steel strand anchoring, not only construction party
Just, and anchoring efficiency is high.FRP material has anisotropic feature, compared with endwise tensile strength, the transverse direction of FRP material
Shear strength is then weaker, only 1/10th or so of tensile strength.During using strand tapered anchorage to anchor FRP inhaul cable, anchor
Gu area's inner clamp piece can produce FRP inhaul cable transverse shear stress deformation, there is stress concentration phenomenon in strand tapered anchorage loading end, easily
The lateral shear of FRP inhaul cable is caused to destroy prior to tensile failure.
Large-tonnage is different with the anchoring process of small tonnage, since anchor force is little, so existing routine anchoring process can
To realize anchoring, and for large-tonnage（More than 50 tons）For anchoring, since the power of the anchoring of needs is very big, if using with it is small
The same anchoring process of tonnage, will cause long anchoring section length, FRP tendons easy damaged, FRP tendons slip and lateral shear destroys etc.
Problem, so small tonnage method cannot be continuing with, it is necessary to required according to large-tonnage anchoring, develop the anchoring for being applicable in large-tonnage
Method.
The content of the invention
Technical problem：
For insufficient present in existing anchorage method and technology, the present invention is intended to provide it is a kind of be suitable for more than 50 tons large-tonnages,
The anchoring process of major diameter FRP inhaul cable, the anchoring process clear principle, simple structure, construction are simple, can improve anchor-hold
Reliability, and can guarantee that security of the drag-line under action of long-term load.
Technical solution：
A kind of large-tonnage FRP inhaul cable anchoring process, it is characterised in that step is：
Step 1: form a taper variation rigidity load transfer medium in FRP inhaul cable anchorage zone；Wherein, the transmission of variation rigidity load is situated between
Matter is heating and curing through molding by the silvalin along the segmentation winding of FRP inhaul cable anchorage zone length direction and is formed, and different sections are using different
The silvalin of species forms variation rigidity load, and the silvalin is handled before winding through resin infiltration；
If Step 2: along the axially cutting arterial highway joint-cutting of the variation rigidity load transfer medium；
Step 3: anchored using the cone anchorage being adapted with the taper variation rigidity load transfer medium.
In step 1, before FRP inhaul cable is segmented winding silvalin formation taper variation rigidity load transfer medium, drawn in FRP
Rope surface uses the silvalin handled through resin infiltration to form a clad.
The FRP inhaul cable prepares material suitable for fibrous materials such as carbon fiber, basalt fibre and glass fibres.
The width of the joint-cutting is 1 ~ 5mm；The distance of the joint-cutting bottom and clad is 0~30mm.By the joint-cutting,
Ensureing the thickness of wrapping layer so that wrapping layer can neither be too thin, can not be too thick, because the diameter of FRP inhaul cable is not very big,
So on the basis of anchor-hold intensity is improved, the security and durability of drag-line ensure that.
The joint-cutting is the 2-6 roads being equally spaced.
The silvalin is fiber roving.
The fiber roving performance bootstrap loading end of the segmentation winding gradually strengthens to free end.The fiber roving of loading end
Can be most weak, the fiber roving performance of free end is most strong.Fiber roving performance mainly includes tensile strength, shear strength, springform
Amount, the deformation of creep, high temperature resistant, corrosion-resistant, anti-fatigue performance etc..In winding, choose wherein several performance indicators and compared
Compared with.
The quantity of segmentation winding silvalin is no less than 3 sections, and number of fragments depends on actual anchoring and requires.Segments is got over
More, stiffness variation is bigger, and the rigidity of change more tends to be continuous, i.e., anchoring property requires higher, and segments should be more.
The cone angle of variation rigidity load transfer medium is 5~10 degree.When cone angle at 7 degree or it is 1 degree upper and lower in, anchoring effect is most
It is good.
The length that the fiber roving length through resin infiltration is not less than the single minor diameter FRP tendons anchorage zone is wound, tree
Lipid species can be epoxy resin, vinyl etc., and fiber roving can be carbon fiber, basalt fibre and aramid fiber etc..
FRP inhaul cable parallel arrangement rule is generally regular hexagon, but is not limited to regular hexagon, all are conducive to FRP drawings
The parallel arrangement form of rope carrying can be as the composition form of FRP inhaul cable.Form the single minor diameter FRP tendons of FRP inhaul cable
Quantity depends on parallel arrangement form, actual anchoring requirement and FRP tendons bulk material performance etc..
In FRP inhaul cable anchorage zone, the length of the certain thickness carbon fiber rove through resin infiltration of uniform winding is not less than
FRP inhaul cable anchoring section length, winding thickness depend on radius, actual anchoring requirement and detailing requiments of FRP inhaul cable etc., resin kind
Class can be epoxy resin, vinyl etc., the purpose of winding carbon fiber rove be to ensure that single minor diameter FRP tendons it is synchronous by
Power, makes FRP inhaul cable anchorage zone form an entirety.
The anchorage of large-tonnage anchoring process includes variation rigidity load transfer medium and metal sleeve.The transmission of variation rigidity load is situated between
Matter is cone shape, its internal fiber species and rigidity bootstrap loading end to free end gradually strengthen, and if equidistantly having vertically
Arterial highway joint-cutting.Metal sleeve is that a kind of inner cavity is cone, and outer surface is the structure of cylinder.The inner cavity cone of metal sleeve
Angle and the outer surface angle of variation rigidity load transfer medium are completely the same.The variation rigidity characteristic of load transfer medium can discharge
The excessive radial compressive stress of loading end, it is ensured that anchorage zone free end has enough anchor forces.Along variation rigidity load transfer medium
If axial equidistantly cutting arterial highway joint-cutting, it can be ensured that the follow-up synchronous with FRP inhaul cable of load transfer medium, further release are pressurized
Tangential deformation caused by deformation, so that variation rigidity load transfer medium produces enough anchor forces to anchor FRP inhaul cable.
This design method is to remain the advantage of overall bonded anchoring system, and with the tangential deformation of pin-connected panel anchoring system freely
Feature.
Beneficial effect：
Large-tonnage FRP inhaul cable anchoring process of the present invention, is produced using the metal sleeve with inner cone and variation rigidity load transfer medium
Wedge shaped squeeze power provide anchor force, can to large-tonnage FRP inhaul cable realize effectively clamping and anchorage effect.With prior art phase
Than, the invention has the characteristics that：
1st, large-tonnage FRP inhaul cable anchoring process of the present invention, can make the large-tonnage being made of more parallel minor diameter FRP tendons
FRP inhaul cable has good synchronous working performance in anchorage zone so that has from outer layer FRP tendons to internal layer FRP tendons in drag-line
There is good power transmission effect.The synchronous stress of each single FRP tendons in FRP inhaul cable, significantly improves the anchoring effect of FRP inhaul cable
Rate.
2nd, large-tonnage FRP inhaul cable anchoring process of the present invention, compared to conventional strand tapered anchorage, variation rigidity lotus in the present invention
The lateral stiffness for carrying transfer medium bootstrap loading end to free end gradually increases, and effectively alleviates FRP inhaul cable and laterally should in loading end
The phenomenon that power is concentrated, the lateral shear for avoiding FRP inhaul cable are destroyed prior to longitudinal stretching destruction.
3rd, the anchoring process of large-tonnage FRP inhaul cable of the present invention, compared with bond type anchorage, the present invention be suitable for major diameter,
The FRP inhaul cable of large-tonnage, first, variation rigidity load transfer medium can alleviate loading end stress concentration phenomenon, second, longitudinal joint-cutting
Circumference stress can effectively be discharged, it is ensured that load transfer medium works asynchronously performance with FRP inhaul cable, and anchorage size is also obvious
Reduce.If arterial highway joint-cutting is equidistantly cut vertically, it can be ensured that the follow-up synchronous with FRP inhaul cable of variation rigidity load transfer medium,
Further discharge tangential deformation caused by compressive deformation.In addition, this anchoring process is held in fatigue load and for a long time under lotus effect
Still ensure that the safety and reliability of anchoring system.
4th, there is this anchoring process simple for production, easily controllable, coordination good stress performance, anchoring efficiency height and load transmission to be situated between
Matter rigidity consecutive variations and it is more uniform many advantages, such as.The fiber content and lateral stiffness of variation rigidity load transfer medium add certainly
Carry end to free end gradually to increase, can alleviate or eliminate " notch effect " of the FRP inhaul cable in loading end, avoid stress concentration from making
Lateral shear into large-tonnage FRP inhaul cable is destroyed prior to tensile failure.
Brief description of the drawings
Fig. 1 is the structure diagram of large-tonnage FRP inhaul cable anchor of the present invention.
Fig. 2 is schematic diagrames of the Fig. 1 along line A-A.
Fig. 3 is the schematic diagram that variation rigidity load transfer medium segmentation winding quantity is 3 sections.
Fig. 4 is the schematic diagram that variation rigidity load transfer medium segmentation winding quantity is 4 sections.
Fig. 5 is the schematic diagram that variation rigidity load transfer medium segmentation winding quantity is 5 sections.
Fig. 6 is variation rigidity load transfer medium circumferential direction force diagram
Fig. 7 is the tangential drag figure of variation rigidity load transfer medium
Fig. 8 is anchorage zone drag-line longitudinal shearing stress distribution map
Fig. 9 is 2 joint-cutting schematic diagrames of the Fig. 1 along line B-B.
Figure 10 is 3 joint-cutting schematic diagrames of the Fig. 1 along line B-B.
Figure 11 is 4 joint-cutting schematic diagrames of the Fig. 1 along line B-B.
Figure 12 is 5 joint-cutting schematic diagrames of the Fig. 1 along line B-B.
Figure 13 is 6 joint-cutting schematic diagrames of the Fig. 1 along line B-B.
Figure 14 is anchored end axial displacement and the graph of a relation of load time.
Wherein：1st, FRP inhaul cable；2nd, clad；3rd, metal sleeve；4th, variation rigidity load transfer medium；5th, joint-cutting；6、FRP
Muscle；7th, silvalin；8th, resin.
Embodiment
Below in conjunction with the accompanying drawings, technical scheme is made and further clarified, it should be understood that these embodiments
It is only illustrative of the invention and is not intended to limit the scope of the invention, after the present invention has been read, those skilled in the art couple
The modification of the various equivalent forms of the present invention falls within the application appended claims limited range.
The latex bonded fibre rove 7 for infiltrating resin 8 is wound in the anchorage zone of single minor diameter FRP tendons 6, wherein fine in Fig. 2
Tie up the anchoring section length that 7 coiling length of rove is not less than single minor diameter FRP tendons 6.8 species of resin can be epoxy resin, second
Olefine resin etc., 7 species of fiber roving can be carbon fiber, basalt fibre and aramid fiber etc..By single minor diameter FRP tendons 6
Planar it is arranged in parallel according to certain rule into FRP inhaul cable 1, and in the 1 certain thickness warp of anchorage zone uniform winding of FRP inhaul cable
The carbon fiber rove 2 that resin 8 infiltrates.The coiling length of carbon fiber rove 2 anchors section length not less than FRP inhaul cable 1, and carbon fiber is thick
The winding thickness of yarn 2 is depending on actual use demand and anchoring require.Knot is completed in 1 anchorage zone carbon fiber rove winding of FRP inhaul cable
Configuration formula can be found in Fig. 2.The single parallel arrangement of minor diameter FRP tendons 6 shape can be regular hexagon, but be not limited to regular hexagon,
All arrangement forms for being conducive to single 6 effective stress of minor diameter FRP tendons can be single as the structure type of FRP inhaul cable 1
Minor diameter FRP tendons quantity depends on parallel arrangement form, actual anchoring requirement and FRP tendons bulk material performance etc..To FRP inhaul cable
The 1 anchorage zone segmentation varied angle variety classes fiber roving that integrally winding is infiltrated through resin 8, forms around yarn cone, that is, becomes firm
Spend load transfer medium 4.Fiber roving segments spirogram is generally no less than 3 sections referring to Fig. 3, Fig. 4 and Fig. 5, actual segment quantity,
The ratio of every kind of fiber roving coiling length needs tests determined.The performance bootstrap loading end of segmentation winding variety classes fiber roving
Gradually increase to free end.Fiber roving winding angle refers to the section fibre rove through being wound fiber roving around yarn round platform
Afterwards, fiber roving changes per section fibre rove winding angle around the busbar of yarn round platform and the angle of 1 central axis of FRP inhaul cable
Purpose is to change the rigidity of every section fibre rove.It will be placed on around yarn cone in specific mould, heated curing can be with shape
Into variation rigidity load transfer medium 4.
Variation rigidity load transfer medium stress form is shown in Fig. 6 and Fig. 7, and Fig. 8 is anchorage zone drag-line longitudinal shearing stress distribution map,
For curve map 8 shows that variation rigidity load transfer medium compares uniform rigidity, it is more advantageous to alleviation loading end shear stress concentration and shows
As.
When following up in order to ensure variation rigidity load transfer medium 4 is synchronous with FRP inhaul cable 1, and further discharging compressive deformation
The tangential deformation of generation.Equidistant cutting 2-6 roads joint-cutting 5 vertically, the angle between adjacent twice joint-cutting 5 is equal two-by-two,
5 lower curtate of joint-cutting is generally 0~30mm apart from carbon fiber rove 2, and per pass joint-cutting 5 should level, seam bottom direction and 1 center of FRP inhaul cable
Axis direction is parallel, and 5 width of joint-cutting is generally dependent on cutting blade thickness, and 5 quantity of joint-cutting and structure type schematic diagram are referring to figure
9th, Figure 10, Figure 11, Figure 12 and Figure 13, but actual joint-cutting quantity is not limited to listed joint-cutting quantity in above-mentioned figure.Variation rigidity load
4 outer angle of transfer medium is identical with the metallic sheath within angle that outside is cylinder, inside is circular cone, to ensure therebetween may be used
To be bonded completely.
Figure 14 is anchored end axial displacement and the graph of a relation of load time, and displacement difference is FRP inhaul cable loading end axis in Figure 14
To displacement and the difference of load transfer medium loading end axial displacement.FRP inhaul cable free end axial displacement and load transfer medium
Free end shaft is always consistent to displacement curve, illustrates that FRP inhaul cable is passed with load in the range of the certain length of free end
Passing medium can synchronously follow up, between the two almost without Relative sliding.
Claims (9)
1. a kind of large-tonnage FRP inhaul cable anchoring process, it is characterised in that step is：
Step 1: in FRP inhaul cable（1）Anchorage zone forms a taper variation rigidity load transfer medium（4）；Wherein, taper variation rigidity
Load transfer medium（4）By along FRP inhaul cable（1）The silvalin of anchorage zone length direction segmentation winding is through being molded the shape that is heating and curing
Into different sections form variation rigidity load using different types of silvalin, and the silvalin is handled before winding through resin infiltration；
Step 2: along the taper variation rigidity load transfer medium（4）If axially cutting arterial highway joint-cutting；
Step 3: using with the taper variation rigidity load transfer medium（4）The cone anchorage being adapted is anchored.
2. FRP inhaul cable anchoring process according to claim 1, it is characterised in that in step 1, in FRP inhaul cable（1）Segmentation
Wind silvalin and form taper variation rigidity load transfer medium（4）Before, in FRP inhaul cable（1）Surface uses and is handled through resin infiltration
Silvalin formed a clad.
3. FRP inhaul cable anchoring process according to claim 2, it is characterised in that the width of the joint-cutting is 1~5mm；Institute
The distance for stating joint-cutting bottom and clad is 0~30mm.
4. FRP inhaul cable anchoring process according to claim 3, it is characterised in that the joint-cutting is the 2-6 being equally spaced
Road.
5. FRP inhaul cable anchoring process according to claim 1, it is characterised in that the silvalin is fiber roving.
6. FRP inhaul cable anchoring process according to claim 5, it is characterised in that the fiber roving of the segmentation winding
Energy bootstrap loading end to free end gradually strengthens.
7. FRP inhaul cable anchoring process according to claim 6, it is characterised in that the quantity of segmentation winding silvalin is many
In 3 sections, and number of fragments depends on actual anchoring and requires.
8. according to any FRP inhaul cable anchoring process of claim 1-7, it is characterised in that variation rigidity load transfer medium
（4）Cone angle be 5~10 degree.
9. according to any FRP inhaul cable anchoring process of claim 1-7, it is characterised in that the FRP inhaul cable prepares material
Material is suitable for carbon fiber, basalt fibre or glass fibre.
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| CN201711239653.5A CN108004926B (en) | 2017-11-30 | 2017-11-30 | Large-tonnage FRP inhaul cable anchoring process |
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| CN201711239653.5A CN108004926B (en) | 2017-11-30 | 2017-11-30 | Large-tonnage FRP inhaul cable anchoring process |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109797910A (en) * | 2019-03-04 | 2019-05-24 | 东南大学 | A kind of FRP tendons anchoring intermediate plate, processing method and anchoring process |
| CN110242066A (en) * | 2019-06-17 | 2019-09-17 | 哈尔滨工业大学 | Anchor tool system and its anchoring process for the fibre reinforced composites body of rod |
| CN110258329A (en) * | 2019-06-13 | 2019-09-20 | 中铁大桥科学研究院有限公司 | A kind of FRP inhaul cable anchor and its installation method |
| CN111024491A (en) * | 2019-12-06 | 2020-04-17 | 东南大学 | Smooth FRP bar anchoring method |
| CN111206502A (en) * | 2020-01-07 | 2020-05-29 | 东南大学 | Anchoring method of integrally cast high-tension composite stay cable |
| CN112942685A (en) * | 2021-02-07 | 2021-06-11 | 哈尔滨工业大学 | Novel anchoring system and anchoring method for fiber reinforced resin composite material rod |
| CN113585796A (en) * | 2021-06-28 | 2021-11-02 | 东南大学 | FRP plate anchoring device and anchoring method |
| CN114214937A (en) * | 2021-11-23 | 2022-03-22 | 上海浦江缆索股份有限公司 | Method for improving anchoring uniformity of carbon fiber inhaul cable |
| CN114214938A (en) * | 2021-11-23 | 2022-03-22 | 上海浦江缆索股份有限公司 | Anchoring strength improving method of carbon fiber inhaul cable |
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Cited By (15)
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| CN109797910B (en) * | 2019-03-04 | 2021-02-26 | 东南大学 | Clamping piece for anchoring FRP (fiber reinforced Plastic) rib, machining method and anchoring method |
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| CN110242066A (en) * | 2019-06-17 | 2019-09-17 | 哈尔滨工业大学 | Anchor tool system and its anchoring process for the fibre reinforced composites body of rod |
| CN111024491B (en) * | 2019-12-06 | 2023-02-24 | 东南大学 | Smooth FRP bar anchoring method |
| CN111024491A (en) * | 2019-12-06 | 2020-04-17 | 东南大学 | Smooth FRP bar anchoring method |
| CN111206502A (en) * | 2020-01-07 | 2020-05-29 | 东南大学 | Anchoring method of integrally cast high-tension composite stay cable |
| CN112942685A (en) * | 2021-02-07 | 2021-06-11 | 哈尔滨工业大学 | Novel anchoring system and anchoring method for fiber reinforced resin composite material rod |
| CN113585796B (en) * | 2021-06-28 | 2022-07-22 | 东南大学 | FRP plate anchoring device and anchoring method |
| CN113585796A (en) * | 2021-06-28 | 2021-11-02 | 东南大学 | FRP plate anchoring device and anchoring method |
| CN114214938A (en) * | 2021-11-23 | 2022-03-22 | 上海浦江缆索股份有限公司 | Anchoring strength improving method of carbon fiber inhaul cable |
| CN114214937A (en) * | 2021-11-23 | 2022-03-22 | 上海浦江缆索股份有限公司 | Method for improving anchoring uniformity of carbon fiber inhaul cable |
| CN114214937B (en) * | 2021-11-23 | 2023-09-08 | 上海浦江缆索股份有限公司 | Method for improving anchoring uniformity of carbon fiber inhaul cable |
| CN114214938B (en) * | 2021-11-23 | 2023-11-14 | 上海浦江缆索股份有限公司 | Anchoring strength improving method for carbon fiber inhaul cable |
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| CN108004926B (en) | 2019-09-20 |
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