CN106192754A - A kind of FRP inhaul cable anchorage and preparation method thereof - Google Patents
A kind of FRP inhaul cable anchorage and preparation method thereof Download PDFInfo
- Publication number
- CN106192754A CN106192754A CN201610748362.8A CN201610748362A CN106192754A CN 106192754 A CN106192754 A CN 106192754A CN 201610748362 A CN201610748362 A CN 201610748362A CN 106192754 A CN106192754 A CN 106192754A
- Authority
- CN
- China
- Prior art keywords
- protection cylinder
- inhaul cable
- carbon fibre
- anchor slab
- anchorage
- 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
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Classifications
-
- 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
-
- 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
Abstract
Open a kind of FRP inhaul cable anchorage of the present invention and preparation method thereof, FRP inhaul cable on anchorage bridge, FRP inhaul cable includes: one or more carbon fibre bar and the steel wire being arranged in carbon fibre bar along carbon fibre bar length direction, including: anchor slab, anchor slab is provided with one or more anchor hole；Protection cylinder, protection cylinder is provided with the cylinder in bonding chamber in being, the opposite sides of protection cylinder is run through in this bonding chamber, and this opposite sides is respectively the first open side and the second open side, and the first open side of protection cylinder is fixing with anchor slab to be connected, and is filled with binding agent at bonding intracavity；Carbon fibre bar is fixed in the side of anchor slab, after anchor hole, draws from the relative opposite side of anchor slab, then introduces from the first open side of protection cylinder, after entering the bonding intracavity of protection cylinder, draws from the second open side of protection cylinder.One FRP inhaul cable anchorage of the present invention and preparation method thereof can anchor FRP inhaul cable effectively, and efficiency of anchorage is reliable.
Description
Technical field
Present invention relates particularly to a kind of FRP inhaul cable anchorage and preparation method thereof.
Background technology
For large span stayed-cable bridge, drag-line is vital stress load bearing component in its structural system.It is on active service the phase at it
In, these parts are not only chronically at high-stress state, and endure severe Service Environment effect to the fullest extent so that tired, corrosion, even lose
The phenomenons such as effect are very universal, thus had a strong impact on the normal service ability of above-mentioned infrastructure, shorten service life, and by
This may bring serious direct and indirect economic loss, causes great social influence.Therefore, in order to extend the use of drag-line
Life-span, it is ensured that the safety of drag-line, it is necessary to take effective measures and reduce drag-line generation corrosion failure degree.
For above-mentioned background and engineering demand, the most many scholars, with bridge cable class A of geometric unitA for research starting point, grind
Study carefully exploitation can anticorrosion, again can stress carrying FRP (Fiber Reinforced Polymer, fiber-reinforced resin) drag-line.
FRP inhaul cable, it is while meeting engineering structure stress demand and bulk deformation requirement, compares tradition steel wire and possesses the most excellent
Point: the most high-strength, tensile strength is 7-10 times of steel；2. lightweight, density is about the 1/4 of steel；3. decay resistance is fabulous,
Structure long service performance requirement can be met.It can effectively solve drag-line etching problem, but there is a key technical problem and need
Solve, i.e. anchorage the most effectively anchors FRP inhaul cable.
Owing to FRP inhaul cable shear behavior is poor, easily cut up destruction, use tradition anchorage to be difficult to be anchored.Therefore,
The problem fundamentally solving anchorage anchoring FRP inhaul cable, by significant to the development of FRP inhaul cable.
Therefore one can anchor FRP inhaul cable effectively, efficiency of anchorage reliable FRP inhaul cable anchorage and preparation method thereof is urgently
Wait to propose.
Summary of the invention
Be difficult to the technical problem anchored for lightweight, FRP inhaul cable high-strength, corrosion resistant, the present invention proposes a kind of FRP inhaul cable
Anchorage, this anchorage can anchor FRP inhaul cable effectively, and efficiency of anchorage is reliable.
In order to achieve the above object, technical scheme is as follows:
A kind of FRP inhaul cable anchorage, the FRP inhaul cable on anchorage bridge, FRP inhaul cable includes: one or more carbon fiber
Muscle and the steel wire being arranged in carbon fibre bar along carbon fibre bar length direction, including:
Anchor slab, is provided with one or more anchor hole on anchor slab；
Protection cylinder, protection cylinder is provided with the cylinder in bonding chamber in being, the opposite sides of protection cylinder is run through in this bonding chamber, and this is relative
Both sides are respectively the first open side and the second open side, and the first open side of protection cylinder is fixing with anchor slab to be connected, and in bonding chamber
Inside it is filled with binding agent；
Carbon fibre bar is fixed in the side of anchor slab, after anchor hole, draws from the relative opposite side of anchor slab, then from protection cylinder
First open side introduce, enter protection cylinder bonding intracavity after, from protection cylinder second open side draw.
The present invention a kind of FRP inhaul cable anchorage can anchor the carbon fibre bar of embedded steel wire effectively, and efficiency of anchorage is reliable,
Solve the corrosivity of drag-line, endurance issues, improve the service life of drag-line, significantly reduce engineering cost, give society
Bring huge economic worth.
On the basis of technique scheme, also can do and improve as follows:
As preferred scheme, the diameter in bonding chamber gradually subtracts along the first open side to the direction of the second open side
Little.
Use above-mentioned preferred scheme, cone angle in being formed after the binding agent solidification in protection cylinder, FRP inhaul cable bearing load
After, the interior cone angle in protection cylinder provides normal pressure back to FRP inhaul cable surface, makes frictional force improve.
As preferred scheme, protection cylinder is outward extended with extension along its length, is provided with and runs through on extension
The cushion chamber of extension opposite sides, and cushion chamber connects with bonding chamber.
Use above-mentioned preferred scheme, the carbon fibre bar in protection cylinder is played the effect preferably strengthening fastening, machinery
Intensity is more preferable.
As preferred scheme, being provided with protective cover in the fixing side of carbon fibre bar Yu anchor slab, anchor slab is placed in protective cover.
Use above-mentioned preferred scheme, the end of anchor slab and carbon fibre bar is protected.
As preferred scheme, each anchor hole corresponds to a carbon fibre bar.
Using above-mentioned preferred scheme, carbon fibre bar is connected firmly with anchor slab.
As preferred scheme, anchor hole is uniformly distributed on anchor slab.
Use above-mentioned preferred scheme, it is ensured that anchor slab uniform force.
As preferred scheme, the cavity wall in the bonding chamber of protection cylinder sets multiple reinforcement.
Use above-mentioned preferred scheme, improve the mechanical strength contacted between protection cylinder and carbon fibre bar.Meanwhile, guarantor is improved
Casing provides normal pressure back to carbon fibre bar surface, makes frictional force improve.
As preferred scheme, the cavity wall in the bonding chamber of protection cylinder sets multiple strengthening groove.
Using above-mentioned preferred scheme, improving protection cylinder provides normal pressure back to carbon fibre bar surface, makes frictional force carry
High.
The preparation method of FRP inhaul cable anchorage, is used for preparing FRP inhaul cable anchorage, specifically includes following steps:
1) outer surface of cleaning carbon fibre bar, the cavity wall in protection cylinder bonding chamber and the anchor hole of anchor slab；
2) by the bonding intracavity of carbon fibre bar lashing to protection cylinder；
3) by the anchor hole one_to_one corresponding of each carbon fibre bar Yu anchor slab；
4) at the bonding intra-bladder instillation binding agent of protection cylinder；
5) carbon fibre bar is done pier nose process with the end face that contacts of anchor slab, be fixed.
The preparation method simple operation of the present invention a kind of FRP inhaul cable anchorage, technique is simple, and production efficiency is high, is suitable for big model
The popularization enclosed and application.
As preferred scheme, further comprising the steps of:
6) it is connected fixing to anchor slab and protective cover, anchor slab is placed in protective cover.
Use above-mentioned preferred scheme, the end of anchor slab and carbon fibre bar is protected.
Accompanying drawing explanation
The sectional view of a kind of FRP inhaul cable anchorage that Fig. 1 provides for the embodiment of the present invention.
Wherein: 1 carbon fibre bar, 2 steel wires, 3 anchor slabs, 31 anchor holes, 4 protection cylinders, 41 first open side, 42 second open side,
43 extensions, 5 bonding chamber, 6 cushion chambers, 7 protective covers, 8 nuts.
Detailed description of the invention
Describe the preferred embodiment of the present invention below in conjunction with the accompanying drawings in detail.
In order to reach the purpose of the present invention, in the some of them embodiment of a kind of FRP inhaul cable anchorage and preparation method thereof,
As it is shown in figure 1, a kind of FRP inhaul cable anchorage, the FRP inhaul cable on anchorage bridge, FRP inhaul cable includes: many carbon
Fiber bar 1 and steel wire 2 (not shown) being arranged in carbon fibre bar 1 along carbon fibre bar 1 length direction, including:
Anchor slab 3, is provided with one or more anchor hole 31 on anchor slab 3, and anchor hole 31 is uniformly distributed on anchor slab 3, each anchor
Hole 31 is corresponding to a carbon fibre bar 1；
Protection cylinder 4, protection cylinder 4 is provided with the cylinder in bonding chamber 5 in being, the opposite sides of protection cylinder 4 is run through in this bonding chamber 5,
This opposite sides is respectively the first open side 41 and the second open side 42, and the first open side 41 of protection cylinder 4 is fixing with anchor slab 3 even
Connecing, the diameter in bonding chamber 5 is gradually reduced along the direction of first open side the 41 to the second open side 42, and in bonding chamber 5
It is filled with binding agent；
Carbon fibre bar 1 is fixed in the side of anchor slab 3, after anchor hole 31, draws from the relative opposite side of anchor slab 3, then from
First open side 41 of protection cylinder 4 introduces, and after entering in the bonding chamber 5 of protection cylinder 4, draws from the second open side 42 of protection cylinder 4
Go out.
The preparation method of FRP inhaul cable anchorage, is used for preparing FRP inhaul cable anchorage, specifically includes following steps:
1) outer surface of cleaning carbon fibre bar 1, the cavity wall protecting the bonding chamber 5 of cylinder 4 and the anchor hole 31 of anchor slab 3；
2) by carbon fibre bar 1 lashing to the bonding chamber 5 of protection cylinder 4；
3) by anchor hole 31 one_to_one corresponding of each carbon fibre bar 1 with anchor slab 3；
4) in the bonding chamber 5 of protection cylinder 4, binding agent is irrigated；
5) carbon fibre bar 1 is done pier nose process with the end face that contacts of anchor slab 3, be fixed.
One FRP inhaul cable anchorage of the present invention has adhesive type anchorage concurrently, the feature of strand tapered anchorage, involved by the present embodiment
Binding agent is mainly the mixed fillers of epoxy resin composite iron powder composition.FRP inhaul cable includes carbon fibre bar 1 and is arranged at carbon fibre
Steel wire 2 in dimension muscle 1, can stress carrying perception sensing again of carbon fibre bar 1.
In the present embodiment, carbon fibre bar 1 a diameter of φ 5mm or φ 7mm, steel wire 2 can be plain steel wire or band rib steel
Silk, steel wire 2 diameter is between 1mm～5mm.Steel wire 2 tensile strength is more than 2500MPa.Carbon fibre bar 1 tensile strength is
More than 2400MPa.
FRP inhaul cable anchorage can anchor FRP suspension cable effectively, and its loading process is as follows.
First stage stress, mainly based on cohesion, frictional force.The load that FRP inhaul cable is born passes through carbon fibre bar 1 table
Face binding agent is delivered to bond on the binding agent in chamber 5, then connects in load being transferred to anchorage by the binding agent in bonding chamber 5
In contacting surface；
When cohesion and frictional force can not resist the intensity of drag-line, suspension rod, i.e. stress second stage, with frictional force and machine
Tool gmatjpdumamics carrying stress is main.Cone angle in being formed after epoxy adhesive solidification in steel bushing, after FRP muscle bearing load, protects
Interior cone angle in casing 4 provides normal pressure back to FRP muscle surface, makes frictional force improve.
Phase III stress, when i.e. first and second stage cannot carry load, now, the steel wire 2 being anchored on anchor slab 3
Pier nose starts bearing load, FRP inhaul cable is firmly anchored.
The version of the present invention is different from tradition steel strand anchorage, combines the excellent of strand tapered anchorage and adhesive type anchorage
Point, efficiency of anchorage is reliable, can effectively anchor the carbon fibre bar 1 of embedded steel wire 2, and efficiency of anchorage is reliable, solves
The corrosivity of drag-line, endurance issues, improve the service life of drag-line, significantly reduce engineering cost, bring to society huge
Big economic worth.The preparation method simple operation of the present invention a kind of FRP inhaul cable anchorage, technique is simple, and production efficiency is high, is suitable for
Promote on a large scale and application.
In order to optimize the implementation result of the present invention further, in other embodiment, remaining feature technology phase
With, difference is, protection cylinder 4 is outward extended with extension 43 along its length, is provided with to run through and prolongs on extension 43
The cushion chamber 6 of extending portion 43 opposite sides, and cushion chamber 6 with bonding chamber 5 connect.
Use above-mentioned preferred scheme, the carbon fibre bar 1 in protection cylinder 4 is played the effect preferably strengthening fastening, machine
Tool intensity is more preferable.
In order to optimize the implementation result of the present invention further, in other embodiment, remaining feature technology phase
With, difference is, is provided with protective cover 7 in the fixing side of carbon fibre bar 1 with anchor slab 3, and anchor slab 3 is placed in protective cover 7.
The preparation method of a kind of FRP inhaul cable anchorage is further comprising the steps of:
6) it is connected fixing with protective cover 7 for anchor slab 3, anchor slab 3 is placed in protective cover 7, and utilizes nut 8 to be attached,
Finally the FRP inhaul cable anchorage assembled is wound around band packing, transports job site to and install.
Use the scheme of above preferred embodiment, the end of anchor slab 3 and carbon fibre bar 1 is protected.
In order to optimize the implementation result of the present invention further, in other embodiment, remaining feature technology phase
With, difference is, sets multiple reinforcement (not shown) in the cavity wall in the bonding chamber 5 of protection cylinder 4.
Use the scheme of above preferred embodiment, improve the contact area of protection cylinder 4 and binding agent, improve protection cylinder 4 with
The mechanical strength of contact between carbon fibre bar 1.Meanwhile, improving protection cylinder 4 provides normal pressure back to carbon fibre bar 1 surface, makes
Frictional force improves.
In order to optimize the implementation result of the present invention further, in other embodiment, remaining feature technology phase
With, difference is, sets multiple strengthening groove (not shown) in the cavity wall in the bonding chamber 5 of protection cylinder 4.
Using the scheme of above preferred embodiment, improving protection cylinder 4 provides normal pressure back to carbon fibre bar 1 surface, makes
Frictional force improves, and improves the contact area of protection cylinder 4 and binding agent.
Above is only the preferred embodiment of the present invention, it is noted that for the person of ordinary skill of the art,
Without departing from the concept of the premise of the invention, it is also possible to make some deformation and improvement, these broadly fall into the guarantor of the present invention
Protect scope.
Claims (10)
1. a FRP inhaul cable anchorage, the FRP inhaul cable on anchorage bridge, described FRP inhaul cable includes: one or more carbon is fine
Tie up muscle and be arranged at the steel wire in described carbon fibre bar along described carbon fibre bar length direction, it is characterised in that including:
Anchor slab, is provided with one or more anchor hole on described anchor slab；
Protection cylinder, described protection cylinder is provided with the cylinder in bonding chamber in being, the opposite sides of described protection cylinder is run through in this bonding chamber, should
Opposite sides is respectively the first open side and the second open side, and the first open side of described protection cylinder is fixing with described anchor slab even
Connect, and be filled with binding agent at described bonding intracavity；
Described carbon fibre bar is fixed in the side of described anchor slab, after described anchor hole, draws from the relative opposite side of described anchor slab
Go out, then introduce from the first open side of described protection cylinder, after entering the bonding intracavity of described protection cylinder, from the of described protection cylinder
Two open side are drawn.
FRP inhaul cable anchorage the most according to claim 1, it is characterised in that the diameter in described bonding chamber is along described
One open side is gradually reduced to the direction of described second open side.
FRP inhaul cable anchorage the most according to claim 2, it is characterised in that described protection cylinder is along its length to extension
Stretch and have extension, described extension is provided with the cushion chamber running through described extension opposite sides, and described cushion chamber and institute
State the connection of bonding chamber.
4. according to the FRP inhaul cable anchorage described in any one of claim 1-3, it is characterised in that at described carbon fibre bar with described
The fixing side of anchor slab is provided with protective cover, and described anchor slab is placed in described protective cover.
FRP inhaul cable anchorage the most according to claim 4, it is characterised in that each described anchor hole is corresponding to described in one
Carbon fibre bar.
FRP inhaul cable anchorage the most according to claim 5, it is characterised in that described anchor hole is uniformly distributed on described anchor slab.
FRP inhaul cable anchorage the most according to claim 6, it is characterised in that in the cavity wall in the bonding chamber of described protection cylinder
If multiple reinforcements.
FRP inhaul cable anchorage the most according to claim 6, it is characterised in that in the cavity wall in the bonding chamber of described protection cylinder
If multiple strengthening grooves.
The preparation method of 9.FRP dragline anchorage, it is characterised in that for preparing the FRP inhaul cable described in any one of claim 4-8
Anchorage, specifically includes following steps:
1) outer surface of cleaning carbon fibre bar, the cavity wall in protection cylinder bonding chamber and the anchor hole of anchor slab；
2) by the bonding intracavity of carbon fibre bar lashing to protection cylinder；
3) by the anchor hole one_to_one corresponding of each carbon fibre bar Yu anchor slab；
4) at the bonding intra-bladder instillation binding agent of protection cylinder；
5) carbon fibre bar is done pier nose process with the end face that contacts of anchor slab, be fixed.
The preparation method of FRP inhaul cable anchorage the most according to claim 9, it is characterised in that further comprising the steps of:
6) it is connected fixing to anchor slab and protective cover, anchor slab is protected in protective cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610748362.8A CN106192754A (en) | 2016-08-29 | 2016-08-29 | A kind of FRP inhaul cable anchorage and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610748362.8A CN106192754A (en) | 2016-08-29 | 2016-08-29 | A kind of FRP inhaul cable anchorage and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106192754A true CN106192754A (en) | 2016-12-07 |
Family
ID=57527363
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610748362.8A Pending CN106192754A (en) | 2016-08-29 | 2016-08-29 | A kind of FRP inhaul cable anchorage and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035255A (en) * | 2017-12-26 | 2018-05-15 | 浙锚科技股份有限公司 | Carbon fiber oblique pull cable system |
| CN108221666A (en) * | 2017-12-28 | 2018-06-29 | 江苏大学 | A kind of compound anchorage of FRP tendons |
| CN111041970A (en) * | 2019-12-17 | 2020-04-21 | 北京市第三建筑工程有限公司 | Prestressed single-lug inhaul cable and tensioning method thereof |
| CN114214936A (en) * | 2021-11-23 | 2022-03-22 | 上海浦江缆索股份有限公司 | Carbon fiber inhaul cable with good anchoring effect and uniform stress |
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| CN205975361U (en) * | 2016-08-29 | 2017-02-22 | 智性纤维复合加固南通有限公司 | FRP cable ground tackle |
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| JP2005344295A (en) * | 2004-05-31 | 2005-12-15 | Takashi Daiguuji | Method and structure for anchoring structural cable |
| CN1896436A (en) * | 2006-04-19 | 2007-01-17 | 哈尔滨工业大学 | Fibre-reinforced plastic steel twisting-wire composite rib |
| CN101078286A (en) * | 2007-07-04 | 2007-11-28 | 湖南大学 | Composite anchorage used for anchoring multiple fiber reinforcement plastic bar or dragline |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035255A (en) * | 2017-12-26 | 2018-05-15 | 浙锚科技股份有限公司 | Carbon fiber oblique pull cable system |
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| CN108221666A (en) * | 2017-12-28 | 2018-06-29 | 江苏大学 | A kind of compound anchorage of FRP tendons |
| CN111041970A (en) * | 2019-12-17 | 2020-04-21 | 北京市第三建筑工程有限公司 | Prestressed single-lug inhaul cable and tensioning method thereof |
| CN111041970B (en) * | 2019-12-17 | 2021-03-16 | 北京市第三建筑工程有限公司 | Prestressed single-lug inhaul cable and tensioning method thereof |
| CN114214936A (en) * | 2021-11-23 | 2022-03-22 | 上海浦江缆索股份有限公司 | Carbon fiber inhaul cable with good anchoring effect and uniform stress |
| CN114214936B (en) * | 2021-11-23 | 2023-11-24 | 上海浦江缆索股份有限公司 | Carbon fiber inhaul cable good in anchoring effect and even in stress |
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