CN201916610U - Prestressed nicked rib pipeline - Google Patents
Prestressed nicked rib pipeline Download PDFInfo
- Publication number
- CN201916610U CN201916610U CN2011200182336U CN201120018233U CN201916610U CN 201916610 U CN201916610 U CN 201916610U CN 2011200182336 U CN2011200182336 U CN 2011200182336U CN 201120018233 U CN201120018233 U CN 201120018233U CN 201916610 U CN201916610 U CN 201916610U
- Authority
- CN
- China
- Prior art keywords
- prestressed
- indentation
- nicked
- steel wire
- rib
- 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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- Reinforcement Elements For Buildings (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model provides a prestressed nicked rib pipeline, which comprises a steel pipe, protective layers and a prestressed nicked rib steel wire, wherein the protective layers are fixed on the inner wall and the outer wall of the steel pipe respectively; the prestressed nicked rib steel wire is wound on the outer wall of the steel pipe in the protective layers; the diameter of the prestressed nicked rib steel wire is between phi 2.9 millimeters and 6.00 millimeters, and the prestressed nicked rib steel wire is provided with nicks; the four radial faces of the prestressed nicked rib steel wire are provided with nicks; every two adjacent nicks form an angle of 90 degrees; the nicks are elliptical; the depths of the nicks are between 0.02 millimeter and 0.2 millimeter; the lengths of the nicks are between 4 millimeters and 6.4 millimeters; and nick pitches are between 8 millimeters and 20 millimeters. The prestressed nicked rib pipeline has the advantages that: the problems of slippage and contraction of a core thread and insufficient holding force are solved, and the mechanical property of a prestressed steel barrel concrete pipe is enhanced.
Description
Technical field
The utility model belongs to the prestressed concrete member field, especially relates to a kind of prestressing force indentation ribbed pipe road.
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 prestressing force indentation ribbed pipe road of the mechanical property of Prestressed concrete cylinder pipe.
The technical solution of the utility model is: a kind of prestressing force indentation ribbed pipe road; comprise steel pipe; protective layer; the steel pipe inner and outer wall is fixed with protective layer respectively; also comprise prestressing force indentation rib steel wire; described prestressing force indentation rib steel wire is wrapped on the interior outer wall of steel pipe of protective layer; described prestressing force indentation rib steel wire diameter is φ 2.9mm-6.00mm and has indentation; described prestressing force indentation rib steel wire radially four sides has indentation; the four sides indentation is mutually 90 °; described indentation is oval; and width of nick is 0.02mm-0.2mm, and indentation length is 4mm-6.4mm, and pitch of nick is 8mm-20mm.
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 prestressing force indentation rib steel wire in the utility model
Among the figure:
1, steel pipe 2, protective layer 3, prestressing force indentation rib steel 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 prestressing force indentation rib steel wire 3; described prestressing force indentation rib steel wire 3 is wrapped on steel pipe 1 outer wall in the protective layer 2 that slush constitutes; described prestressing force indentation rib steel wire 3 diameters are φ 2.9mm-6.00mm and have indentation 4; described prestressing force indentation rib steel wire 3 radially four sides has indentation 4; four sides indentation 4 is mutually 90 °; described indentation 4 is oval; and indentation 4 degree of depth are 0.02mm-0.2mm, and indentation 4 length are 4mm-6.4mm, and indentation 4 pitches are 8mm-20mm.
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. prestressing force indentation ribbed pipe road; 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 prestressing force indentation rib steel wire; described prestressing force indentation rib steel wire is wrapped on the interior outer wall of steel pipe of protective layer; described prestressing force indentation rib steel wire diameter is φ 2.9mm-6.00mm and has indentation; described prestressing force indentation rib steel wire radially four sides has indentation; the four sides indentation is mutually 90 °; described indentation is oval; and width of nick is 0.02mm-0.2mm, and indentation length is 4mm-6.4mm, and pitch of nick is 8mm-20mm.
2. a kind of prestressing force indentation ribbed pipe according to claim 1 road, it is characterized in that: described protective layer is a slush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200182336U CN201916610U (en) | 2011-01-20 | 2011-01-20 | Prestressed nicked rib pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200182336U CN201916610U (en) | 2011-01-20 | 2011-01-20 | Prestressed nicked rib pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201916610U true CN201916610U (en) | 2011-08-03 |
Family
ID=44416406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200182336U Expired - Fee Related CN201916610U (en) | 2011-01-20 | 2011-01-20 | Prestressed nicked rib pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201916610U (en) |
-
2011
- 2011-01-20 CN CN2011200182336U patent/CN201916610U/en not_active Expired - Fee Related
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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: 20110803 Termination date: 20140120 |