CN109853383A - A kind of cable-stayed bridge high strength anchor bar, anchoring assembly and its construction method - Google Patents
A kind of cable-stayed bridge high strength anchor bar, anchoring assembly and its construction method Download PDFInfo
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- CN109853383A CN109853383A CN201910087387.1A CN201910087387A CN109853383A CN 109853383 A CN109853383 A CN 109853383A CN 201910087387 A CN201910087387 A CN 201910087387A CN 109853383 A CN109853383 A CN 109853383A
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- 238000004873 anchoring Methods 0.000 title claims abstract description 53
- 238000010276 construction Methods 0.000 title claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 30
- 238000005260 corrosion Methods 0.000 claims description 21
- 238000000576 coating method Methods 0.000 claims description 18
- 239000011248 coating agent Substances 0.000 claims description 16
- 229920001021 polysulfide Polymers 0.000 claims description 12
- 239000005077 polysulfide Substances 0.000 claims description 12
- 150000008117 polysulfides Polymers 0.000 claims description 12
- 244000261422 Lysimachia clethroides Species 0.000 claims description 9
- 239000000565 sealant Substances 0.000 claims description 8
- 230000011218 segmentation Effects 0.000 claims description 8
- 229910000635 Spelter Inorganic materials 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 6
- 230000036316 preload Effects 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 3
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- 238000000429 assembly Methods 0.000 abstract 1
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- 230000007797 corrosion Effects 0.000 description 12
- 229910000831 Steel Inorganic materials 0.000 description 11
- 239000010959 steel Substances 0.000 description 11
- 238000005246 galvanizing Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
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- 238000010586 diagram Methods 0.000 description 4
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- 238000005507 spraying Methods 0.000 description 4
- 229910000851 Alloy steel Inorganic materials 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
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Abstract
The invention discloses a kind of cable-stayed bridge anchoring assemblies, including high strength anchor bar (104), spherical pad (102), anchor slab (103) and Ball faced nut (101), the high strength anchor bar (104) includes stretching end and anchored end, anchored end is fixed on the anchor slab (103), pass through the Ball faced nut (101), spherical pad (102) is threadedly coupled with the anchor slab (103), stretching end is anchored on the anchor slab (103), and pass sequentially through the spherical pad (102), Ball faced nut (101) and anchor slab (103) fasten, and anti-return nut (105) are equipped on the outside of the Ball faced nut (101).The invention also discloses the construction methods of the high strength anchor bar and anchoring assembly.Anchoring assembly of the invention, structure is simple, and main body is connected through a screw thread, install convenient, is conducive to replacement；Using Ball faced nut and gasket, it can effectively increase contact area, the stress eliminated under big pretightning force effect is concentrated, and is increased connection reliability, is increased component service life.
Description
Technical field
The present invention relates to cable-stayed bridge anchoring piece technical field, specifically a kind of cable-stayed bridge high strength anchor bar, anchoring assembly and
Its construction method is suitable for Cable stayed Bridge Main Tower king-post and gooseneck anchor connection.
Background technique
For cable-stayed bridge during design and construction, to bear the moment of flexure of gooseneck end and resisting vertical shear, king-tower steel is horizontal
Beam and concrete king-post generally use anchor pole and are tightly connected in advance.Anchor pole one end is anchored on the anchoring bracket of gooseneck end,
The other end is anchored in concrete king-post on steel construction anchor slab by nut, at the same in order to fill up anchor pole due to concrete contract become and
Loss of prestress caused by anchor pole tensioning etc., it will usually carry out grading tension anchoring technique and carry out tensioning, pressure maintaining of pressurizeing step by step
Unloading anchoring afterwards.
Since the nineties in last century, existing anchoring process is mostly to weld or use regular screw threads nut mode, is used
Welding manner in-site installation is inconvenient, also anchor pole is replaced in inconvenience simultaneously；Using plain nut mode, in the pretightning force of universal 1200KN
And under the long-term micro-displacement of bridge and vibration working condition, often there is nut loosening and pre-tighten hypodynamic problem.Cause
This needs the structure to existing fastener to be further improved, with the actual demand for meeting big pretightning force, being convenient for changing.
Generally speaking, it is had the following problems in the prior art about the anchoring process of cable-stayed bridge:
(1) inconvenient using welding manner in-site installation, also inconvenient simultaneously using welding or using regular screw threads nut mode
Replace anchor pole.
(2) plain nut mode, in the long-term micro-displacement of the pretightning force and bridge of universal 1200KN and vibration work
Under situation, often there is nut loosening and pre-tighten hypodynamic problem.
(3) anchoring assembly of cable-stayed bridge is in the biggish environment of humidity ratio, while being also often exposed to rainwater or river
Among, it easily gets rusty in use, the significantly lower service life of anchoring assembly.
(4) under some extreme environment, the anchoring assembly of metal material is easy to be corroded.Anchoring group after corrosion
The dramatic decline of part intensity, the corrosion of material have also seriously affected the service life of anchoring assembly.
Summary of the invention
Aiming at the above defects or improvement requirements of the prior art, the present invention provides a kind of cable-stayed bridge high strength anchor bar, anchoring
Component, the structure is simple, and main body is connected through a screw thread, and realizes efficient, close fastening effect, is provided simultaneously with good firm
Property, moreover, install convenient, is conducive to replacement, solve the problems, such as that pre- be tightly connected is easy loosening, inconvenient replacement.
To achieve the goals above, according to one aspect of the present invention, a kind of cable-stayed bridge anchoring assembly, the anchoring are provided
Component includes high strength anchor bar, spherical pad, anchor slab and Ball faced nut；Wherein,
Described high strength anchor bar one end is stretching end, and one end is anchored end, and the anchored end is fixed on the anchor slab, is passed through
The Ball faced nut, spherical pad are threadedly coupled with the anchor slab, realize being fastenedly connected for bridge king-post and gooseneck；
The stretching end is anchored on the anchor slab, and is passed sequentially through the spherical pad, Ball faced nut and anchor slab and fastened,
It realizes and is pre-tightened with high strength anchor bar tensioning, and be equipped with anti-return nut, when preventing prefastening force, the height on the outside of the Ball faced nut
Strong anchor pole or Ball faced nut generate loosening.
Further, the Ball faced nut is machined with protrusion spherical surface, the spherical surface close to an end face of the spherical pad
One end that gasket is docked with the Ball faced nut is machined with concave spherical, and the protrusion spherical surface matches with concave spherical diameter, just
It is bonded just in corresponding spherical pad with Ball faced nut contact jaw, increases contact area.
Further, the anchor slab is fixed by welding or concrete casting with gooseneck or the king-post, is the ball
Face nut provides stable, firm fulcrum with being fixedly connected for high strength anchor bar.
Further, the outer surface of the high strength anchor bar, spherical pad, Ball faced nut and anti-return nut is coated with zinc painting
Layer.
Further, sealing ring is equipped between the spherical pad and Ball faced nut, which includes at least two sections close
Seal segmentation, each sealing ring segmentation are successively end to end.
Further, the interior diameter of the sealing ring is less than the diameter of the high strength anchor bar, and the outer ring of the sealing ring
On be provided with extension spring around the sealing ring.
Other side according to the invention provides a kind of cable-stayed bridge high strength anchor bar, as the anchoring assembly
Part, the high strength anchor bar are prepared using 40CrNiMoA alloy material, and both ends are equipped with helicitic texture.
Further, the outer surface of the high strength anchor bar is coated with spelter coating.
Further, the outside of the spelter coating is equipped with ultralow modulus high elongation rate polysulfide anti-corrosion sealant.
Other side according to the invention provides the construction method of cable-stayed bridge anchoring assembly described in one kind, including
Following steps:
The high strength anchor bar: being passed through the mounting hole of the anchor slab by S1, and the anchor slab is made to compress the outer of the high strength anchor bar
Realize the fixation of the stretching end of the high strength anchor bar in week；
S2: the spherical pad and Ball faced nut are successively installed in the anchored end；The Ball faced nut is tightened, so that institute
It states anchor slab and compresses the high strength anchor bar；
S3: in the stretching end, the spherical pad, Ball faced nut and anti-return nut are successively installed, tighten the spherical surface
Nut and anti-return nut, so that the high strength anchor bar is fixed on the anchor slab；
S4: after the high strength anchor bar and anchoring assembly anchoring are stablized, tensioning preload is carried out to the high strength anchor bar.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, can obtain down and show
Beneficial effect:
1. cable-stayed bridge anchoring assembly of the invention, structure is simple, and main body is connected through a screw thread, and realizes efficiently, closely
Fastening effect is provided simultaneously with good stability, moreover, install convenient, is conducive to replacement,
2. cable-stayed bridge anchoring assembly of the invention, Ball faced nut is machined with protrusion ball close to an end face of spherical pad
Face, one end that spherical pad is docked with the Ball faced nut are machined with concave spherical, and the protrusion spherical surface and concave spherical diameter phase
Matching, is bonded just with Ball faced nut contact jaw convenient for corresponding spherical pad, can effectively increase contact area, eliminate big pretightning force
Stress under effect is concentrated, and connection reliability is increased, and increases component service life.
3. cable-stayed bridge anchoring assembly of the invention, anti-return nut are mounted on stretching end, high-strength anchor when preventing prefastening force
Bar or Ball faced nut generate loosening, can increase the tightness of high strength anchor bar, and prevent in preload and later period use process
Micro-displacement increases connection reliability.
4. cable-stayed bridge anchoring assembly of the invention, in the outer of high strength anchor bar, spherical pad, Ball faced nut and anti-return nut
Surface is coated with spelter coating.By metal plating coating process, high strength anchor bar and anchoring assembly can not only be effectively improved
Waterproof performance, while also significant the resistance to corrosion for improving high strength anchor bar and anchoring assembly；It is routinely applied in anchor pole simultaneously
Except dress system, polysulfide dope spraying process is increased, enables high strength anchor bar and anchoring assembly this in bridge structure
Corrosive deposit keeps higher performance and used life in the environment of corroding.
5. cable-stayed bridge anchoring assembly of the invention is equipped with sealing ring between spherical pad and Ball faced nut.Sealing ring energy
It is enough to form sealing well, prevent water from further contacting Ball faced nut in anchoring assembly, sealing ring is divided at least two sections of sealing rings
Segmentation, the segmentation of each sealing ring is successively end to end, and the interior diameter of sealing ring is less than the diameter of the arbor, on sealing ring outer ring
It is provided with the extension spring around sealing ring.
6. cable-stayed bridge high strength anchor bar of the invention guarantees high strength anchor bar in bridge complexity using 40CrNiMoA steel alloy
There are enough strength and stiffness under load effect.
7. cable-stayed bridge high strength anchor bar of the invention increases ultralow modulus high elongation rate polysulfide anti-corrosion sealant spraying process
As most appearance protective layer, be on the one hand because anchor pole under water tensioning when, if only paint anti-corrosion, anchor pole elongation when very
It is easy to appear paint and bursts phenomenon, and then destroy corrosion-inhibiting coating, anchor pole corrosion is caused further to shorten the working life, and polysulfide is anti-
Rotten sealant has good ductility, can extend simultaneously in anchor pole stretching extension, effective protection anchor pole corrosion-inhibiting coating.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of a kind of cable-stayed bridge high strength anchor bar of the embodiment of the present invention and anchoring assembly；
Fig. 2 is the structural schematic diagram of Ball faced nut in the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of spherical pad in the embodiment of the present invention；
Fig. 4 is the schematic diagram of ring structure in one embodiment in the present invention.
In all the appended drawings, same appended drawing reference indicates identical technical characteristic, specifically: 101- Ball faced nut,
102- spherical pad, 103- anchor slab, 104- anchor pole, 105- anti-return nut, 1011- protrude spherical surface, 1021- concave spherical.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below that
Not constituting conflict between this can be combined with each other.
As shown in Figure 1, the embodiment of the present invention provides a kind of cable-stayed bridge high strength anchor bar and anchoring assembly, including high strength anchor bar
104, spherical pad 102, Ball faced nut 101 and anti-return nut 105.
When being attached installation to king-post and gooseneck, high strength anchor bar 104 is passed through to the mounting hole of anchor slab 103 first,
Later in anchored end successively mounting spherical gasket 102 and Ball faced nut 101, nut is tightened；In stretching end, successively mounting spherical pad
Piece 102, Ball faced nut 101 and anti-return nut 105, tighten fixation, then can carry out tensioning preload.The cable-stayed bridge of invention is high
Strong anchor pole and anchoring assembly, structure is simple, and main body is connected through a screw thread, install convenient, is conducive to replacement.
As shown in Fig. 2 and figure, in a preferred embodiment of the invention, Ball faced nut 101 is close to one end of spherical pad 102
Face is machined with protrusion spherical surface 1011, and one end that spherical pad 102 is docked with the Ball faced nut 101 is machined with concave spherical 1021,
And the protrusion spherical surface 1011 matches with 1021 diameter of concave spherical, contacts convenient for corresponding spherical pad 102 with Ball faced nut 101
End fitting just, greatly enhances the ride comfort of its power transmitting, to realize that high strength anchor bar 104 is securely connect with Ball faced nut 101.
When installing the anchoring assembly in the present invention, Ball faced nut 101 is tightened, 101 1 end face of Ball faced nut is enabled to
Protrusion spherical surface 1011 be machined with concave spherical 1021 with one end that spherical pad 102 is docked with the Ball faced nut 101 and closely match
It closes, realizes efficient, close fastening effect, be provided simultaneously with good stability.
It in addition, the present invention uses Ball faced nut 101 and spherical pad 102, can effectively increase contact area, eliminate big pre-tighten
Stress under power effect is concentrated, and connection reliability is increased, and increases component service life.
In a kind of currently preferred embodiment, as shown in Figure 1, anti-return nut 105 is mounted on stretching end, prevent from pre-tightening
High strength anchor bar 104 or Ball faced nut 101 generate loosening when pulling force.The tightness of high strength anchor bar 104 can be increased, and prevented pre-
Micro-displacement in tight and later period use process increases connection reliability.
In an embodiment of the present invention, as shown in Figure 1, being equipped with anchor slab 103, the anchor slab in 102 front end of spherical pad
103 are fixed by welding or concrete casting with gooseneck or the king-post, are Ball faced nut 101 and high strength anchor bar 104 is consolidated
Fixed connection provides stable, firm fulcrum, and undertakes the pulling force of high strength anchor bar 104, guarantees the lasting pulling force in high strength anchor bar 104
Under effect, displacement is not generated, guarantees the effect of anchoring.
In a kind of currently preferred embodiment, high strength anchor bar 104, spherical pad 102, Ball faced nut 101 and retaining
The outer surface of nut 105 is coated with spelter coating.By metal plating coating process, high strength anchor bar can not only be effectively improved
And the waterproof performance of anchoring assembly, while also significant the resistance to corrosion for improving high strength anchor bar and anchoring assembly, so that high
Strong anchor pole and anchoring assembly can keep higher performance in the environment of this corrosive deposit of bridge structure corrodes and use the longevity
Life.
Further, which is realized using hot galvanizing method, and galvanizing is that the steel member after derusting immerses 600 DEG C
In the zinc liquid of left and right high temperature melt, steel member surface is made to adhere to zinc layers, zinc coating thickness cannot be less than 65 μm to 5mm with lower thin sheet,
5mm and the above slab are not less than 86 μm.To play etch-proof purpose.Its advantage clearly, predominantly it is following a little: it is resistance to
Long year limit for length, production industrialization degree is high, and quality is stablized.It is thus largely used to more serious and not easy to repair by atmospheric corrosion
In outdoor steel structure.Such as a large amount of power transmission towers, communications tower.The profiled sheet in lightweight steel construction system largely occurred in recent years
Deng.Also galvanizing anticorrosion is relatively mostly used.The first working procedure of galvanizing is acid pickling and rust removing, followed by is cleaned.This two procedures is not
Thoroughly hidden danger can be left to anticorrosion.So must handle thoroughly.For Steel Structural Design person, it should which avoiding designing has
Fit the component in face, in case pickling is not thorough in the gap of binding face or acid solution does not wash clean.Cause galvanizing surface stream yellow water
Phenomenon.Galvanizing carries out at high temperature.Its both ends should be allowed open tubular articles.If closed at both ends will cause in pipe
Air expands and head plate is made to burst, to cause safety accident.Zinc liquid stream is led to unsmooth if closed at one end, Yi Guan inner product
It deposits.
Since the technological temperature of galvanizing is relatively high, the lower material of tempering temperature is easy to make it in zinc-plated process
In be annealed, thus hardness reduce.Furthermore shadow of the thickness to fit tolerance of coating is also contemplated that using galvanizing to matching piece
It rings.
In a kind of currently preferred embodiment, as shown in Figure 1, high strength anchor bar 104 uses 40CrNiMoA material, two
End is threaded.40CrNiMoA is the one of which for closing knot steel, also referred to as steel alloy, it is the base in carbon constructional quality steel
On plinth, it is properly joined into one or several kinds of alloying elements (total content be no more than 5%) and manufactured steel grade.Using 40CrNiMoA
Steel alloy guarantees that high strength anchor bar 104 has enough strength and stiffness under the effect of bridge complex load.
In a kind of currently preferred embodiment, as shown in figure 4, being equipped with sealing between spherical pad and Ball faced nut
Circle.Sealing ring can form sealing well, prevent water from further contacting Ball faced nut in anchoring assembly.In this embodiment,
Sealing ring is divided at least two sections of sealing ring segmentations, and each sealing ring segmentation is successively end to end, and the interior diameter of sealing ring is less than institute
The diameter of arbor is stated, the extension spring around sealing ring is provided on sealing ring outer ring.
In another embodiment of the present invention, ultralow modulus high elongation rate polysulfide is increased in 104 part of high strength anchor bar
Preserving and sealing gel coating.The characteristic of the polysulfide anti-corrosion sealant: polysulfide anti-corrosion sealant has very steel, cement, timber etc.
Good caking property, general adhesion strength > 0.2MPa, elongation > 300%；There is good water resistance simultaneously, to seawater, certainly
The effect of water is all very stable；Also without toxicity after polysulfide preserving and sealing adhesive curing simultaneously；Simultaneously to inorganic acid, alkali, salt ring
There is good corrosion resistance in border, is very suitable to across the spraying under river, bridge spanning the sea environment.
It is anti-as most appearance to increase ultralow modulus high elongation rate polysulfide anti-corrosion sealant spraying process on high strength anchor bar 104
Sheath, be on the one hand because anchor pole under water tensioning when, if only paint anti-corrosion, anchor pole elongation when be very easy to paint
Phenomenon is burst, and then destroys corrosion-inhibiting coating, anchor pole corrosion is caused further to shorten the working life, and polysulfide anti-corrosion sealant has
Good ductility can extend simultaneously in anchor pole stretching extension, effective protection anchor pole corrosion-inhibiting coating；On the other hand, traditional
Paint, electroplated coating are easy to appear anchor pole and concrete binding phenomenon in tensioning, and use polysulfide preserving and sealing gel coating can
So that anchor pole is not bonded with concrete, in order to which anchor pole is twitched when tensioning.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, it is not used to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (10)
1. a kind of cable-stayed bridge anchoring assembly, which is characterized in that the anchoring assembly includes high strength anchor bar (104), spherical pad
(102), anchor slab (103) and Ball faced nut (101)；Wherein,
Described high strength anchor bar (104) one end is stretching end, and one end is anchored end, and the anchored end is fixed on the anchor slab (103)
On, it is threadedly coupled by the Ball faced nut (101), spherical pad (102) with the anchor slab (103), realizes bridge tower
Column and gooseneck are fastenedly connected；
The stretching end is anchored on the anchor slab (103), and passes sequentially through the spherical pad (102), Ball faced nut (101)
It is fastened with anchor slab (103), realizes and pre-tightened with high strength anchor bar (104) tensioning, and be equipped with retaining spiral shell on the outside of the Ball faced nut (101)
Female (105), when preventing prefastening force, the high strength anchor bar (104) or Ball faced nut (101) generate loosening.
2. cable-stayed bridge anchoring assembly according to claim 1, which is characterized in that the Ball faced nut (101) is close to institute
The end face for stating spherical pad (102) is machined with protrusion spherical surface (1011), the spherical pad (102) and the Ball faced nut
(101) one end docked is machined with concave spherical (1021), and the protrusion spherical surface (1011) and concave spherical (1021) diameter phase
Matching is bonded convenient for corresponding spherical pad (102) with Ball faced nut (101) contact jaw just, increases contact area.
3. cable-stayed bridge anchoring assembly according to claim 1 or 2, which is characterized in that the anchor slab (103) passes through welding
Or concrete casting is fixed with gooseneck or the king-post, is that the fixed of the Ball faced nut (101) and high strength anchor bar (104) connects
It connects and stable, firm fulcrum is provided.
4. cable-stayed bridge anchoring assembly according to any one of claim 1-3, which is characterized in that the high strength anchor bar
(104), the outer surface of spherical pad (102), Ball faced nut (101) and anti-return nut (105) is coated with spelter coating.
5. cable-stayed bridge anchoring assembly described in any one of -4 according to claim 1, which is characterized in that the spherical pad
(102) sealing ring is equipped between Ball faced nut (101), which includes at least two sections of sealing ring segmentations, each described close
Seal segmentation is successively end to end.
6. cable-stayed bridge anchoring assembly according to any one of claims 1-5, which is characterized in that the sealing ring it is interior
Diameter is less than the diameter of the high strength anchor bar (104), and the stretching around the sealing ring is provided on the outer ring of the sealing ring
Spring.
7. a kind of cable-stayed bridge high strength anchor bar, special as the part of anchoring assembly such as of any of claims 1-6
Sign is that the high strength anchor bar is prepared using 40CrNiMoA alloy material, and both ends are equipped with helicitic texture.
8. a kind of cable-stayed bridge high strength anchor bar according to claim 7, which is characterized in that the outer surface of the high strength anchor bar
It is coated with spelter coating.
9. a kind of cable-stayed bridge high strength anchor bar according to claim 7 or 8, which is characterized in that the outside of the spelter coating
Equipped with ultralow modulus high elongation rate polysulfide anti-corrosion sealant.
10. a kind of construction method of such as cable-stayed bridge anchoring assembly of any of claims 1-7, which is characterized in that
Include the following steps:
The high strength anchor bar (104): being passed through the mounting hole of the anchor slab (103) by S1, and the anchor slab (103) is made to compress the height
The periphery of strong anchor pole (104), realizes the fixation of the stretching end of the high strength anchor bar (104)；
S2: the spherical pad (102) and Ball faced nut (101) are successively installed in the anchored end；Tighten the Ball faced nut
(101), so that the anchor slab (103) compresses the high strength anchor bar (104)；
S3: in the stretching end, successively installing the spherical pad (102), Ball faced nut (101) and anti-return nut (105), twists
The tight Ball faced nut (101) and anti-return nut (105), so that the high strength anchor bar (104) is fixed on the anchor slab (103)
On；
S4: after the high strength anchor bar (104) and anchoring assembly anchoring are stablized, tensioning preload is carried out to the high strength anchor bar (104).
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| CN201910087387.1A CN109853383A (en) | 2019-01-29 | 2019-01-29 | A kind of cable-stayed bridge high strength anchor bar, anchoring assembly and its construction method |
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| CN201910087387.1A CN109853383A (en) | 2019-01-29 | 2019-01-29 | A kind of cable-stayed bridge high strength anchor bar, anchoring assembly and its construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114837066A (en) * | 2022-05-19 | 2022-08-02 | 保利长大工程有限公司 | High-altitude cable tower beam construction bracket with external prestress and installation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2739290Y (en) * | 2004-09-18 | 2005-11-09 | 柳州欧维姆机械股份有限公司 | Steel strand vertical prestress anchoring system |
| CN201439590U (en) * | 2009-05-14 | 2010-04-21 | 巨力索具股份有限公司 | High-strength anchor rod |
| CN105369736A (en) * | 2015-12-15 | 2016-03-02 | 安徽省交通控股集团有限公司 | Outer anchoring structure of cable-stayed bridge tower body |
| CN209941496U (en) * | 2019-01-29 | 2020-01-14 | 武汉海润工程设备有限公司 | High-strength anchor rod and anchor assembly for cable-stayed bridge |
-
2019
- 2019-01-29 CN CN201910087387.1A patent/CN109853383A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2739290Y (en) * | 2004-09-18 | 2005-11-09 | 柳州欧维姆机械股份有限公司 | Steel strand vertical prestress anchoring system |
| CN201439590U (en) * | 2009-05-14 | 2010-04-21 | 巨力索具股份有限公司 | High-strength anchor rod |
| CN105369736A (en) * | 2015-12-15 | 2016-03-02 | 安徽省交通控股集团有限公司 | Outer anchoring structure of cable-stayed bridge tower body |
| CN209941496U (en) * | 2019-01-29 | 2020-01-14 | 武汉海润工程设备有限公司 | High-strength anchor rod and anchor assembly for cable-stayed bridge |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114837066A (en) * | 2022-05-19 | 2022-08-02 | 保利长大工程有限公司 | High-altitude cable tower beam construction bracket with external prestress and installation method |
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