CN201954130U - Indented ribbed prestressed pipe - Google Patents
Indented ribbed prestressed pipe Download PDFInfo
- Publication number
- CN201954130U CN201954130U CN2011200182317U CN201120018231U CN201954130U CN 201954130 U CN201954130 U CN 201954130U CN 2011200182317 U CN2011200182317 U CN 2011200182317U CN 201120018231 U CN201120018231 U CN 201120018231U CN 201954130 U CN201954130 U CN 201954130U
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- China
- Prior art keywords
- indented
- indentation
- pipe
- steel
- ribbed
- Prior art date
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Abstract
The utility model provides an indented ribbed prestressed pipe, which comprises a steel pipe and protective layers. The protective layers are respectively fixed to the inner wall and the outer wall of the steel pipe. The indented ribbed prestressed pipe further comprises indented ribbed prestressed steel wires wound on inside the protective layer on the outer wall of the steel pipe, the diameter of each indented ribbed prestressed steel wire which is indented ranges from phi 2.9mm to phi 6.00mm, indents are radially arranged on three sides of each indented ribbed prestressed steel wire and mutually form 120-degree angles, one indent line and an adjacent indent line axially arranged on each indented ribbed prestressed steel wire form a reflex angle, the indents are in parallelogram shapes, the depth of each indent ranges from 0.03mm to 0.2mm, the length of each indent ranges from 3mm to 5mm, and the pitch of the indents ranges from 5.0mm to 8.5mm. The indented ribbed prestressed pipe has the advantages that the problem that core wires slip and retract and are poor in wrapping force is solved, and mechanical property of prestressed steel-cylinder concrete pipe is improved.
Description
Technical field
The utility model belongs to the prestressed concrete member field, especially relates to a kind of indentation rib prestress pipe.
Background technique
Prestressed concrete cylinder pipe is called for short PCCP, is a kind of novel rigidity tubing.It is that the strong concrete tube core that has steel cylinder twines reinforcement wire; spray is with cement mortar protective course; adopt steel bell and spigot; welded together with steel cylinder; fluted and the cushion rubber of joint socket has formed the flexible joint of sliding type cushion rubber; be the composite structure that steel plate, concrete, High Tensile Steel Wire and slush different materials are formed, have steel and concrete characteristic separately.According to the difference of steel cylinder position in tube core, can be divided into two kinds: lined Prestressed concrete cylinder pipe, embed-type Prestressed concrete cylinder pipe.
Prestressed concrete cylinder pipe have justice composite structure, bear in higher, the characteristic such as joint tighness good, shock resistance is strong, convenient and quick construction, antiseptic property are good, easy to maintenance of external pressure, paid close attention to by engineering circle, being widely used in long water delivery main line, pressure inverted-siphon, town water supply engineering, industry at interval has the waterline of pressure, electric power plant circulating water engineering drainage pipeline, pressure blowdown main etc.Compare with tubing in the past, have applied widelyly, the economic life is long, anti-seismic performance good, easy for installation, advantage such as the operation expenditure is low, and is water-tight substantially.
The pre-stress steel cylinder of prior art all is to twine the 1-3 layer by the reinforcement wire of light face to use, exist following deficiency, because the round wire surface is smooth, only depend on the back pressure stress of the frictional force generation of the non-effective contact between the round wire to concrete member, very easily produce core silk limit portion slippage retraction, cause the minimizing of core silk stress or lose stress fully, restricted the quality and the life-span of prestressed concrete member, and reduced steel wire and concrete bond stress.
Summary of the invention
The purpose of this utility model provides a kind of solution core silk slippage retraction problems and the not enough problem of bond stress, improves the indentation rib prestress pipe of the mechanical property of Prestressed concrete cylinder pipe.
The technical solution of the utility model is: a kind of indentation rib prestress pipe; comprise steel pipe; protective layer; the steel pipe inner and outer wall is fixed with protective layer respectively; also comprise indentation rib reinforcement wire; described indentation rib reinforcement wire is wrapped on the interior outer wall of steel pipe of protective layer; described indentation rib prestress steel filament diameter is φ 2.9mm-6.00mm and has indentation; described indentation rib reinforcement wire radially three has been worn indentation; three indentations are mutually 120 °; a described indentation rib reinforcement wire line of weakness in axial direction becomes dihedral with an adjacent line of weakness; described indentation is a parallelogram; and width of nick is 0.03mm-0.2mm; indentation length is 3mm-5mm, and pitch of nick is 5.0mm-8.5mm.
Described protective layer is a slush.
Advantage and the good effect that the utlity model has are: solve core silk slippage retraction problems, increased steel strand and concrete bond stress, improve the mechanical property of Prestressed concrete cylinder pipe.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of indentation rib reinforcement wire in the utility model.
Among the figure:
1, steel pipe 2, protective layer 3, indentation rib reinforcement wire
4, indentation
Embodiment
As Fig. 1; shown in Figure 2; the utility model comprises steel pipe 1; protective layer 2; steel pipe 1 inner and outer wall is fixed with protective layer 2 respectively; also comprise indentation rib reinforcement wire 3; described indentation rib reinforcement wire 3 is wrapped in the protective layer that slush constitutes on 2 steel pipe 1 outer wall; described indentation rib reinforcement wire 3 diameters are φ 2.9mm-6.00mm and have indentation; described indentation rib reinforcement wire 3 radially three has been worn indentation; three indentations are mutually 120 °; described indentation rib reinforcement wire 3 line of weakness in axial direction becomes dihedral with an adjacent line of weakness; described indentation 4 is a parallelogram; and indentation 4 degree of depth are 0.03mm-0.2mm; indentation 4 length are 3mm-5mm, and indentation 4 pitches are 5.0mm-8.5mm.
More than an embodiment of the present utility model is had been described in detail, but described content only is preferred embodiment of the present utility model, can not be considered to be used to limit practical range of the present utility model.All equalizations of doing according to the utility model application range change and improve etc., all should still belong within the patent covering scope of the present utility model.
Claims (2)
1. indentation rib prestress pipe; comprise steel pipe; protective layer; the steel pipe inner and outer wall is fixed with protective layer respectively; it is characterized in that: also comprise indentation rib reinforcement wire; described indentation rib reinforcement wire is wrapped on the interior outer wall of steel pipe of protective layer; described indentation rib prestress steel filament diameter is φ 2.9mm-6.00mm and has indentation; described indentation rib reinforcement wire radially three has been worn indentation; three indentations are mutually 120 °; a described indentation rib reinforcement wire line of weakness in axial direction becomes dihedral with an adjacent line of weakness; described indentation is a parallelogram; and width of nick is 0.03mm-0.2mm; indentation length is 3mm-5mm, and pitch of nick is 5.0mm-8.5mm.
2. a kind of indentation rib prestress pipe according to claim 1, it is characterized in that: described protective layer is a slush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200182317U CN201954130U (en) | 2011-01-20 | 2011-01-20 | Indented ribbed prestressed pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200182317U CN201954130U (en) | 2011-01-20 | 2011-01-20 | Indented ribbed prestressed pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201954130U true CN201954130U (en) | 2011-08-31 |
Family
ID=44498240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200182317U Expired - Fee Related CN201954130U (en) | 2011-01-20 | 2011-01-20 | Indented ribbed prestressed pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201954130U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723915A (en) * | 2017-10-31 | 2019-05-07 | 北京市水利规划设计研究院 | PCCP pipeline prestressed reinforcement structure and reinforcement means |
-
2011
- 2011-01-20 CN CN2011200182317U patent/CN201954130U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723915A (en) * | 2017-10-31 | 2019-05-07 | 北京市水利规划设计研究院 | PCCP pipeline prestressed reinforcement structure and reinforcement means |
| CN109723915B (en) * | 2017-10-31 | 2024-05-07 | 北京市水利规划设计研究院 | PCCP (prestressed concrete cylinder pipe) prestress reinforcing structure and reinforcing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: TIANJIN SILVERY DRAGON PRESTRESSED MATERIALS CO., Free format text: FORMER NAME: SILVERY DRAGON PC STEEL PRODUCTS GROUP CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 300400 Tianjin City, Beichen economic and Technological Development Zone Industrial Park Road No. 62 dual Shuangjiang Patentee after: Tianjin Silvery Dragon Prestressed Materials Co., Ltd. Address before: 300400 Tianjin City, Beichen economic and Technological Development Zone Industrial Park Road No. 62 dual Shuangjiang Patentee before: Silvery Dragon PC Steel Products Group Co., Ltd. Tianjin |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110831 Termination date: 20140120 |