CN206581612U - A kind of prestressed concrete is big apart from the special bushing pipe of reeving steel strands - Google Patents
A kind of prestressed concrete is big apart from the special bushing pipe of reeving steel strands Download PDFInfo
- Publication number
- CN206581612U CN206581612U CN201621423441.3U CN201621423441U CN206581612U CN 206581612 U CN206581612 U CN 206581612U CN 201621423441 U CN201621423441 U CN 201621423441U CN 206581612 U CN206581612 U CN 206581612U
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- CN
- China
- Prior art keywords
- bushing pipe
- reeving
- surface roughness
- duct
- prestressed concrete
- 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.)
- Expired - Fee Related
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Abstract
The utility model is related to that a kind of prestressed concrete is big apart from the special bushing pipe of reeving steel strands, and the bushing pipe, which is coaxially located in, reeves in duct, is the hollow elongated tubular that confession steel strand wires smooth inside and outside one are worn；Its one end, which is exposed at, reeves outside the arrival end of duct, in a horn-like port corresponding with anchorage horn mouth, has the circle adpting flange radially extended to bushing pipe in the port outer rim, is easy to bushing pipe being fixed on arrival end；The bushing pipe inner wall surface roughness is less than outer wall surface roughness, and surface roughness refers to the smaller spacing that finished surface has and the unevenness of small peak valley.The utility model has the advantage of：Using the special bushing pipe, total frictional resistance of the steel strand wires in duct of reeving is greatly reduced, solve artificial and mechanical the problem of can not carry out more than 200 meters and reeve, it is to avoid the hidden danger of quality that box beam casing perforate boosting method is caused to box beam body, while substantially increasing speed of reeving.
Description
Technical field
The utility model is related to a kind of technical field of road construction, and more particularly to a kind of big distance steel of prestressed concrete is twisted
Line is reeved special bushing pipe.
Background technology
Cast-in-Situ Continuous Beam is a kind of common support beam in road construction, is formed by concreting, traditional coagulation
After native continuous box girder shaping, then lashing, but Concrete Continuous Box Beam and general monomer pre-emulsion beam are carried out to each reserved anchor cable duct
Compare, be ultra long haul duct lashing construction operation, lashing difficulty is larger.
The factor of influence steel stranded wire penetrating adapter distance has two：One is the frictional resistance of steel hinge line and reserving hole channel；Two be to reeve
The thrust of machine.Cable machine thrust is more than the frictional resistance of steel hinge line and reserving hole channel, and steel hinge line can just be passed through.According to above-mentioned reason
By foundation, solution problem one of reeving is to improve cable machine thrust, and two be to reduce steel hinge line and duct frictional resistance.From raising cable machine
Thrust angle considers that existing equipment acc power of reeving can not be improved again, can only pour the casing perforate of completion, increases
Equipment of reeving relay is reeved, but this method can leave potential safety hazard in beam body.
Utility model content
The technical problems to be solved in the utility model largely reduces steel strand wires when being to provide a kind of construction and rubbed with duct
The prestressed concrete of resistance is big apart from the special bushing pipe of reeving steel strands.
In order to solve the above technical problems, the technical solution of the utility model is：A kind of big distance steel of prestressed concrete is twisted
Line is reeved special bushing pipe, and its innovative point is：The bushing pipe, which is coaxially located in, reeves in duct, is confession steel strand wires smooth inside and outside one
The hollow elongated tubular worn；Its one end, which is exposed at, reeves outside the arrival end of duct, in a horn-like port corresponding with anchorage horn mouth,
There is the circle adpting flange radially extended to bushing pipe in the port outer rim, be easy to bushing pipe being fixed on arrival end；The bushing pipe
Inner wall surface roughness is less than outer wall surface roughness, and surface roughness refers to the smaller spacing and minor peaks that finished surface has
The unevenness of paddy.
Further, the bushing pipe is with flexible stereoplasm tube.
Further, the bushing pipe inwall has smooth abrasion-proof layer.
The utility model has the advantage of：
(1) the special bushing pipe is used, total frictional resistance of the steel strand wires in duct of reeving is greatly reduced, solves artificial and machine
Tool can not carry out more than 200 meters the problem of reeve, it is to avoid the quality that box beam casing perforate boosting method is caused to box beam body is hidden
Suffer from, while substantially increasing speed of reeving.
(2) using with flexible stereoplasm tube, as bushing pipe, the complex situations that can adapt to reeve in duct are conveniently worn
If, and general plastic conduit all meets and uses, it is with low cost.
(3) because the surface roughness requirements to bushing pipe inwall are more than its outer wall, coating or use are increased in bushing pipe inwall
Compound smooth inner tube, effectively improves bushing pipe smoothness of inner wall.
Brief description of the drawings
Fig. 1 is a kind of big schematic diagram apart from the special bushing pipe of reeving steel strands of prestressed concrete of the utility model.
Fig. 2 is the big section view apart from the special bushing pipe of reeving steel strands of a kind of prestressed concrete shown in the utility model Fig. 1
Figure.
Embodiment
As shown in Figure 1 and Figure 2, Concrete Continuous Box Beam 1 before the forming, need to reserve duct 4 of reeving, the utility model is disclosed
A kind of prestressed concrete is big apart from the special bushing pipe of reeving steel strands, and the bushing pipe 2 is coaxially located in and reeved in duct 4, is one
Inside and outside smooth confession steel strand wires 3 wear hollow elongated tubular therein；Its one end, which is exposed at, reeves outside the arrival end of duct 4, in one and entrance
The corresponding horn-like port 22 of the anchorage horn mouth at end, facilitates steel strand wires 3 to penetrate wherein, has in the outer rim of port 22 to lining
The circle adpting flange 21 that pipe 2 is radially extended, is easy to bushing pipe 2 being fixed on arrival end, during installation, is fixed and connected using swell fixture
Acting flange 21, convenient follow-up dismounting；The inner wall surface roughness of bushing pipe 2 is less than outer wall surface roughness, as shown in Fig. 2, specific real
Shi Shi, can increase coating or using compound smooth inner tube, to carry in its inwall increase smooth abrasion-proof layer 23 using in inwall
To its surface flatness and wearability, surface roughness refers to the smaller spacing that finished surface has and the injustice of small peak valley
Degree.
Due to the particularity of the service condition of bushing pipe 2, as bushing pipe 2, lining had both been can guarantee that using with flexible stereoplasm tube
The hardness of pipe 2, has certain flexibility, is conveniently located in reeving in duct for long range again, and general plastic conduit is all
Meet use requirement, material is cheap and easy to get.
The length of bushing pipe 2 is less than or equal to the length in duct 4 of reeving, specific length should depending on duct 4 of reeving length, wear steel
Depending on frictional resistance during twisted wire 3；After finishing, bushing pipe 2 should be removed.
General principle of the present utility model and principal character has been shown and described above.The technical staff of the industry should
Solution, the utility model is not restricted to the described embodiments, and simply illustrating described in above-described embodiment and specification, this practicality was new
The principle of type, on the premise of the utility model spirit and scope are not departed from, the utility model also has various changes and modifications,
These changes and improvements are both fallen within the range of claimed the utility model.Scope is claimed by appended in the utility model
Claims and its equivalent thereof.
Claims (3)
1. a kind of prestressed concrete is big apart from the special bushing pipe of reeving steel strands, it is characterised in that：The bushing pipe is coaxially located in
It is the hollow elongated tubular that confession steel strand wires smooth inside and outside one are worn in Suo Kongdao；Its one end, which is exposed at, reeves outside the arrival end of duct, in one
The horn-like port corresponding with anchorage horn mouth, has the circle adpting flange radially extended to bushing pipe in the port outer rim,
It is easy to bushing pipe being fixed on arrival end；The bushing pipe inner wall surface roughness is less than outer wall surface roughness, and surface roughness is
Smaller spacing and the unevenness of small peak valley that finger finished surface has.
2. a kind of prestressed concrete according to claim 1 is big apart from the special bushing pipe of reeving steel strands, it is characterised in that：
The bushing pipe is with flexible stereoplasm tube.
3. a kind of prestressed concrete according to claim 1 is big apart from the special bushing pipe of reeving steel strands, it is characterised in that：
The bushing pipe inwall has smooth abrasion-proof layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621423441.3U CN206581612U (en) | 2016-12-23 | 2016-12-23 | A kind of prestressed concrete is big apart from the special bushing pipe of reeving steel strands |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621423441.3U CN206581612U (en) | 2016-12-23 | 2016-12-23 | A kind of prestressed concrete is big apart from the special bushing pipe of reeving steel strands |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206581612U true CN206581612U (en) | 2017-10-24 |
Family
ID=60109095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621423441.3U Expired - Fee Related CN206581612U (en) | 2016-12-23 | 2016-12-23 | A kind of prestressed concrete is big apart from the special bushing pipe of reeving steel strands |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206581612U (en) |
-
2016
- 2016-12-23 CN CN201621423441.3U patent/CN206581612U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171024 Termination date: 20181223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |