CN105113505B - Prestressed anchorage cable isolation support mounting structure - Google Patents
Prestressed anchorage cable isolation support mounting structure Download PDFInfo
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- CN105113505B CN105113505B CN201510551104.6A CN201510551104A CN105113505B CN 105113505 B CN105113505 B CN 105113505B CN 201510551104 A CN201510551104 A CN 201510551104A CN 105113505 B CN105113505 B CN 105113505B
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- Prior art keywords
- steel strand
- isolation mount
- threading hole
- strand wires
- anchor cable
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- 238000002955 isolation Methods 0.000 title claims abstract description 65
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 60
- 239000010959 steel Substances 0.000 claims abstract description 60
- 229920006351 engineering plastic Polymers 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 4
- 239000012141 concentrate Substances 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract 4
- 230000007547 defect Effects 0.000 abstract 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 2
- 241001411320 Eriogonum inflatum Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
The invention provides a prestressed anchor cable isolation support mounting structure which comprises an isolation support and a steel strand; a plurality of threading holes are uniformly distributed on the isolation bracket around the center of the isolation bracket, the threading holes are circular holes, at least two threading holes with opposite positions are conical threading holes, and the middle part of the conical slope inclined plane of each conical threading hole is provided with a conical slope upper groove; the steel strand penetrates through the conical threading hole, and a wedge-shaped clamping piece is wedged in a gap between the steel strand and the conical threading hole. The anchor cable separation bracket is simple in structure, low in manufacturing cost and convenient to install, can effectively avoid the defect that the traditional anchor cable separation bracket and the steel strand move relatively, so that the anchor cable section without the separation bracket is not generated due to the fact that the separation bracket moves and concentrates due to friction force of the wall of the anchor cable hole in the cable descending process, further the defects of steel strand breakage and anchor cable scrapping caused by winding of the steel strand are avoided, the construction quality of the anchor cable can be effectively guaranteed, and better economic benefits are brought to engineering.
Description
Technical field
The present invention relates to a kind of prestress anchorage cable isolation mount mounting structure, belong to Geotechnical Engineering field.
Background technology
Prestress anchorage cable is a kind of supporting construction that can bear pulling force, it by pulling force caused by bundles of steel strand wires,
Make to produce compression inside the rock mass (or structure) of anchor cable coverage, prevention rock mass is deformed or displacement, offsets in structure
Portion is due to tension caused by external load.Prestress anchorage cable is widely used in highway communication, water conservancy and hydropower, the side slope of mine mine
And in underground chamber reinforcing engineering, it is also applied in the buildings such as dam, gate pier, airport underground structure.
According to the difference of anchorage cable design tonnage, cable body is worked out using the steel strand wires of varying number, in order to ensure that steel strand wires exist
It will not mutually be wound in work progress and influence anchor cable stress, need to be separated using isolation mount between multiply steel strand wires.Such as
Shown in Fig. 7, under the conditions of prior art, the generally circular in cross section engineering plastic flitch of isolation mount or steel plate material, plate are provided with rule circle
Shape hole is through steel strand wires, to play a part of isolating steel strand wires, and the general diameter of circular hole is big compared with steel strand wires diameter, the anchor processed
, can be relatively movable between isolation mount and steel strand wires in cable body, during lowering anchor cable (anchor cable is attached into anchor cable hole), every
It can produce mobile because of hole wall frictional force from support and concentrate in together, cause steel strand wires to be twined because of the buffer action without isolation mount
Around together, steel strand wires easy fracture during tensioning influences anchor cable stress and even results in anchor cable to scrap.
The content of the invention
In order to solve the above technical problems, the invention provides a kind of prestress anchorage cable isolation mount mounting structure, this it is pre- should
Power anchor cable isolation mount mounting structure can avoid anchor cable from using traditional isolation mount by the setting of bellmouth and wedge-shaped intermediate plate
When, steel strand wires are wound mutually, tensioning when steel strand wires easy fracture and then the shortcomings that cause anchor cable to be scrapped, can effective guarantee anchor cable apply
Working medium amount
The present invention is achieved by the following technical programs.
A kind of prestress anchorage cable isolation mount mounting structure provided by the invention, including isolation mount, steel strand wires；It is described every
Multiple threading holes are evenly distributed with from the center of circle that isolation mount is surrounded on support, and threading hole is circular port, wherein at least two
The relative threading hole in position is taper threading hole, and cone slope upper groove is provided with the middle part of the cone slope inclined-plane of taper threading hole；It is described
Steel strand wires are set through taper threading hole, and being wedged in the space of steel strand wires and taper threading hole has wedge-shaped intermediate plate.
1.2 times of a diameter of bottom diameter in top of the taper threading hole, bottom diameter is identical with the diameter of the threading hole.
Cone slope upper groove is provided with the taper threading hole, corresponding cone slope upper groove is provided with half on the wedge-shaped intermediate plate
Round flange.
The radius of the cone slope upper groove is 3mm.
The wedge-shaped intermediate plate is engineering plastics material, and profile is cone-shaped ring shape, and annular diameters are than the steel strand wires
The small 1mm of diameter.
The wedge-shaped intermediate plate vertebral height is bigger 5mm than the thickness of the isolation mount, respectively following table on exposure isolation mount
Each 2.5mm in face.
The wedge-shaped intermediate plate forms in each taper threading hole for 3 parts, wherein each partial arcs are 119 °.
The present invention installs in the following way：
1. steel wire, prepare isolation mount；
2. steel strand wires and isolation mount are assembled, the quantity for the taper threading hole that every steel strand wires are passed through during assembling
Difference be not more than isolation mount；
3. wedge-shaped intermediate plate is assembled in isolation mount, fixed steel strand wires and isolation mount；
4. assembling guiding cap, stringing ring, anchor cable establishment is completed.
The beneficial effects of the present invention are：It is simple in construction, it is cheap, it is easy for installation, can effectively avoid traditional anchor cable every
The shortcomings that relative with steel strand wires from support movable, make isolation mount during lower rope not because in anchor cable hole wall friction power mobile set
And produce the anchor cable section without isolating frame, and then avoid the fracture of caused by steel strands wound steel strand wires, anchor cable is scrapped lacks
Point, the construction quality of energy effective guarantee anchor cable, preferable economic benefit is brought to engineering.
Brief description of the drawings
Fig. 1 is the planar structure schematic diagram of the present invention；
Fig. 2 is the mplifying structure schematic diagram of taper threading hole in Fig. 1；
Fig. 3 is the sectional view of A-A in Fig. 2；
Fig. 4 is sectional views of the Fig. 3 after steel strand wires and wedge-shaped intermediate plate are assembled；
Fig. 5 is the structural representation of wedge-shaped intermediate plate in Fig. 4；
Fig. 6 is wedge-shaped intermediate plate and the three-dimensional shaft surveys view of taper threading hole assembling in Fig. 4；
Fig. 7 is the planar structure schematic diagram of prior art.
In figure：1- isolation mounts, 2- threading holes, 3- steel strand wires, 4- injected holes, 5- taper threading holes, 6- cones slope, 7- wedge shapes
Intermediate plate, 8- semicircular flanges, 9- cone slope upper grooves.
Embodiment
Be described further below technical scheme, but claimed scope be not limited to it is described.
A kind of prestress anchorage cable isolation mount mounting structure as shown in Figures 1 to 6, including isolation mount 1, steel strand wires 3；
The center of circle on the isolation mount 1 around isolation mount 1 is evenly distributed with multiple threading holes 2, and threading hole 2 is circular port, wherein
The relative threading hole 2 at least two positions is taper threading hole 5, and cone is provided with the middle part of the cone slope inclined-plane of taper threading hole 5
Slope upper groove 9；The steel strand wires 3 are set through taper threading hole 5, and being wedged in the space of steel strand wires 3 and taper threading hole 5 has
Wedge-shaped intermediate plate 7.
1.2 times of a diameter of bottom diameter in top of the taper threading hole 5, bottom diameter is identical with the diameter of the threading hole 2.
Cone slope upper groove 9 is provided with the taper threading hole 5, corresponding cone slope upper groove 9 is set on the wedge-shaped intermediate plate 7
There are semicircular flanges 8.
The radius of the cone slope upper groove 9 is 3mm.
The wedge-shaped intermediate plate 7 is engineering plastics material, and profile is cone-shaped ring shape, and annular diameters are than the steel strand wires 3
The small 1mm of diameter, outer shroud is reducing, identical with the reducing rule of taper threading hole 5.
The radius of semicircular flanges 8 in the middle part of the outer shroud of wedge-shaped intermediate plate 7 is 2.7mm.
The vertebral height of wedge-shaped intermediate plate 7 is bigger 5mm than the thickness of the isolation mount 1, and exposure isolation mount is about 1 respectively
Each 2.5mm in surface.
The wedge-shaped intermediate plate 7 forms in each taper threading hole 5 for 3 parts, wherein each partial arcs are 119 °.
Thus, 1 ° of space is reserved between the two wedge-shaped annulus of intermediate plate 7,3 wedge-shaped intermediate plates 7 is prevented while is extruded when installing in radian direction
Wedge-shaped intermediate plate is caused to destroy.
According to the difference of anchor cable tonnage, the quantity of the radical of steel strand wires 3 and the threading hole 2 of isolation mount 1 is also different, works as anchor
When rope tonnage is larger, threading hole 2 may arrange 2~3 rows along the even circumferential of isolation mount 1, it should be noted that taper threading hole
5 be must be necessarily arranged at from the outer round scope of genesis the 1st of isolation mount 1, and wedge is used to isolation mount 1 when anchor cable assembles to facilitate
Clevis piece 7 is fixed.
Said structure is installed in the following way：
1. the blanking of steel strand wires 3, prepare isolation mount 1；
2. steel strand wires 3 and isolation mount 1 are assembled, the taper threading hole 5 that every steel strand wires 3 are passed through during assembling
Number is approximately equal to the most edge threading hole 2 of isolation mount 1 and the sum of taper threading hole 5 divided by the quantity of anchor cable outmost turns steel strand wires 3
Acquired results；Specifically, steel strand wires 3 are tackled before reeving and isolation mount 1 is numbered, avoid same root steel strand wires 3 continuous
Through the taper threading hole 5 of several isolation mounts 1.Such as 1# steel strand wires 3 wear the taper threading hole 5 of 1# isolation mounts 1,2# steel twists
Line 3 wears the taper threading hole 5 of 2# isolation mounts 2, by that analogy.The purpose for the arrangement is that in order to ensure that every steel strand wires 3 can
It is fixed through taper threading hole 5, and the number of every steel strand wires 3 through taper threading hole 5 is roughly the same, it is as small as possible
Influence stress during single steel strand pretension；
3. wedge-shaped intermediate plate 7 is assembled in isolation mount 1, fixed steel strand wires 3 and isolation mount 1；
4. assembling guiding cap, stringing ring, anchor cable establishment is completed.
During lower rope, anchor cable hole wall will produce resistance to isolation mount 1, and the drag direction and lower rope are in opposite direction, to avoid
Isolation mount 1 is pullled and come off by wall drag from steel strand wires 3 during lower rope, and the one side that taper threading hole 5 is relatively large in diameter must be towards
Lower Suo Fangxiang, so wedge-shaped intermediate plate 7 will form a conical flask stopper shape with steel strand wires 3, and anchor cable wall drag can be by taper bottle stopper
Tightly it is pressed into taper threading hole 5, can effectively avoids isolation mount 1 from being pullled the possibility to come off by anchor cable wall drag.
Claims (7)
1. a kind of prestress anchorage cable isolation mount mounting structure, including isolation mount (1), steel strand wires (3), it is characterised in that：Institute
State and be evenly distributed with multiple threading holes (2) around the center of circle of isolation mount (1) on isolation mount (1), threading hole (2) is circle
Hole, the relative threading hole in wherein at least two position (2) is taper threading hole (5), on the cone slope inclined-plane of taper threading hole (5)
Middle part is provided with cone slope upper groove (9)；The steel strand wires (3) are set through taper threading hole (5), in steel strand wires (3) and taper
Wedging has wedge-shaped intermediate plate (7) in the space of threading hole (5)；Corresponding cone slope upper groove (9) is provided with half on the wedge-shaped intermediate plate (7)
Round flange (8).
2. prestress anchorage cable isolation mount mounting structure as claimed in claim 1, it is characterised in that：The taper threading hole
(5) 1.2 times of a diameter of bottom diameter in top, bottom diameter is identical with the diameter of the threading hole (2).
3. prestress anchorage cable isolation mount mounting structure as claimed in claim 1, it is characterised in that：The cone slope upper groove
(9) radius is 3mm.
4. prestress anchorage cable isolation mount mounting structure as claimed in claim 1, it is characterised in that：The wedge-shaped intermediate plate (7)
For engineering plastics material, profile is cone-shaped ring shape, and annular diameters are smaller 1mm than the diameter of the steel strand wires (3).
5. prestress anchorage cable isolation mount mounting structure as claimed in claim 1, it is characterised in that：The wedge-shaped intermediate plate (7)
Vertebral height is bigger 5mm than the thickness of the isolation mount (1), respectively exposure isolation mount (1) each 2.5mm of upper and lower surface.
6. prestress anchorage cable isolation mount mounting structure as claimed in claim 1, it is characterised in that：The wedge-shaped intermediate plate (7)
Formed in each taper threading hole (5) for 3 parts, wherein each partial arcs are 119 °.
7. prestress anchorage cable isolation mount mounting structure as claimed in claim 1, it is characterised in that：Pacify in the following way
Dress：
Steel strand wires 1. (3) blanking, prepare isolation mount (1)；
2. steel strand wires (3) and isolation mount (1) are assembled, the taper threading hole that every steel strand wires (3) is passed through during assembling
(5) number is equal to isolation mount (1) most edge threading hole (2) and twisted with taper threading hole (5) sum divided by anchor cable outmost turns steel
The quantity acquired results of line (3)；
3. wedge-shaped intermediate plate (7) is assembled in isolation mount (1), fixed steel strand wires (3) and isolation mount (1)；
4. assembling guiding cap, stringing ring, anchor cable establishment is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510551104.6A CN105113505B (en) | 2015-09-01 | 2015-09-01 | Prestressed anchorage cable isolation support mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510551104.6A CN105113505B (en) | 2015-09-01 | 2015-09-01 | Prestressed anchorage cable isolation support mounting structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105113505A CN105113505A (en) | 2015-12-02 |
| CN105113505B true CN105113505B (en) | 2018-02-06 |
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ID=54661597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510551104.6A Active CN105113505B (en) | 2015-09-01 | 2015-09-01 | Prestressed anchorage cable isolation support mounting structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN105113505B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106153226A (en) * | 2016-07-18 | 2016-11-23 | 福州大学 | A kind of device for monitoring steel strand prestress loss |
| CN108952785A (en) * | 2018-08-21 | 2018-12-07 | 中铁工程设计咨询集团有限公司 | A kind of high bond stress anchor cable structure |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11209974A (en) * | 1998-01-29 | 1999-08-03 | Hazama Gumi Ltd | Anchor head, ram chair, and re-tensioning method for anchor |
| CN2446200Y (en) * | 2000-08-16 | 2001-09-05 | 柳州欧维姆建筑机械有限公司 | Ground tackle clamping sheet |
| CN102182183A (en) * | 2011-04-26 | 2011-09-14 | 苏州市能工基础工程有限责任公司 | Porous anchor device and using method thereof |
| CN202323713U (en) * | 2011-11-30 | 2012-07-11 | 成都市市政工程（集团）有限责任公司 | Taper-hole type anchoring device for steel stranded wire end |
| CN202925477U (en) * | 2012-12-12 | 2013-05-08 | 中铁上海工程局有限公司 | Steel strand blanking traction device |
| CN204940274U (en) * | 2015-09-01 | 2016-01-06 | 中国电建集团贵阳勘测设计研究院有限公司 | Prestressed anchorage cable isolation support mounting structure |
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2015
- 2015-09-01 CN CN201510551104.6A patent/CN105113505B/en active Active
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| Publication number | Publication date |
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| CN105113505A (en) | 2015-12-02 |
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