IE41021B1 - Prestressed concrete pipes - Google Patents
Prestressed concrete pipesInfo
- Publication number
- IE41021B1 IE41021B1 IE931/75A IE93175A IE41021B1 IE 41021 B1 IE41021 B1 IE 41021B1 IE 931/75 A IE931/75 A IE 931/75A IE 93175 A IE93175 A IE 93175A IE 41021 B1 IE41021 B1 IE 41021B1
- Authority
- IE
- Ireland
- Prior art keywords
- core
- wires
- unwrapped
- hoop
- pretensioned
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/56—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts
- B28B21/60—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts prestressed reinforcements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
- F16L25/0027—Joints for pipes made of reinforced concrete
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/08—Rigid pipes of concrete, cement, or asbestos cement, with or without reinforcement
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S138/00—Pipes and tubular conduits
- Y10S138/05—Pre-stress
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
- Rod-Shaped Construction Members (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Joints With Sleeves (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
In a prestressed concrete pressure pipe it is known to have the tensioned wire wrapping around a concrete pipe core terminate short of the bars outside joint-sealing surface at the end of the pipe core, embedded pretensioned wires extending axially of the core, and a tensioned ring either within or outside of the unwrapped or bare end of the core. In the present invention end portions of the pretensioned wires are bent outwardly at a hoop towards the unwrapped surface of the core and the hoop is pretensioned by the wires. The stress in the wires is thereby utilized to impart radially inwardly directed forces emanating from the bent-out portions of the wires and from the hoop to restrain flaring and cracking of the unwrapped end of the core.
[US3911964A]
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US465341A US3911964A (en) | 1974-04-29 | 1974-04-29 | Prestressed concrete pipes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE41021L IE41021L (en) | 1975-10-29 |
| IE41021B1 true IE41021B1 (en) | 1979-09-26 |
Family
ID=23847415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE931/75A IE41021B1 (en) | 1974-04-29 | 1975-04-25 | Prestressed concrete pipes |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US3911964A (en) |
| JP (1) | JPS5342135B2 (en) |
| AR (1) | AR203332A1 (en) |
| AU (1) | AU467433B2 (en) |
| BR (1) | BR7502482A (en) |
| CA (1) | CA1019683A (en) |
| DE (1) | DE2518513A1 (en) |
| ES (1) | ES225107Y (en) |
| GB (1) | GB1483675A (en) |
| IE (1) | IE41021B1 (en) |
| ZA (1) | ZA752338B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1980001600A1 (en) * | 1979-01-26 | 1980-08-07 | Nii Betona I Zhelezobetona | Prestressed concrete pipe |
| GB2123535A (en) * | 1982-05-28 | 1984-02-01 | Gordon William Taylor | Injection lances for molten metal |
| JPS59188306A (en) * | 1983-04-08 | 1984-10-25 | 株式会社日立製作所 | Switchboard |
| GB8706782D0 (en) * | 1987-03-21 | 1987-04-23 | Velmac Scotland Ltd | Plant restrictor |
| US5520422A (en) * | 1994-10-24 | 1996-05-28 | Ameron, Inc. | High-pressure fiber reinforced composite pipe joint |
| AU673325B3 (en) * | 1996-02-14 | 1996-10-31 | Ameron, Inc. | High-pressure fiber reinforced composite pipe joint |
| DE19853211C2 (en) * | 1998-11-18 | 2001-12-06 | Rheinische Braunkohlenw Ag | Well pipe |
| CN101311598B (en) * | 2007-05-24 | 2011-08-17 | 天津万联管道工程有限公司 | Steel cylinder strengthened steel faucet prestressed concrete ceiling coil |
| CN101654959B (en) * | 2009-05-18 | 2011-01-05 | 中铁二局股份有限公司 | Control construction method of temperature stress cracks of pretensioned broken line reinforcement concrete girder |
| US8544505B1 (en) * | 2013-01-10 | 2013-10-01 | Ming C. Kuo | Pre-stressed concrete pipe |
| CN110593487A (en) * | 2019-09-10 | 2019-12-20 | 广州大学 | Combined structural column and construction method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2805683A (en) * | 1950-02-17 | 1957-09-10 | Lock Joint Pipe Co | Pipe and method for making the same |
| US3034536A (en) * | 1958-02-19 | 1962-05-15 | Lock Joint Pipe Co | Prestressed concrete pipes |
| US3034537A (en) * | 1958-05-20 | 1962-05-15 | Lock Joint Pipe Co | Prestressed concrete pipes |
| US3258033A (en) * | 1963-04-25 | 1966-06-28 | American Pipe & Constr Co | Anchorage for prestress wire in concrete pipe |
-
1974
- 1974-04-29 US US465341A patent/US3911964A/en not_active Expired - Lifetime
-
1975
- 1975-04-10 CA CA224,335A patent/CA1019683A/en not_active Expired
- 1975-04-11 ZA ZA00752338A patent/ZA752338B/en unknown
- 1975-04-17 AU AU80244/75A patent/AU467433B2/en not_active Expired
- 1975-04-23 AR AR258482A patent/AR203332A1/en active
- 1975-04-24 ES ES1975225107U patent/ES225107Y/en not_active Expired
- 1975-04-24 BR BR3154/75A patent/BR7502482A/en unknown
- 1975-04-24 GB GB17072/75A patent/GB1483675A/en not_active Expired
- 1975-04-25 JP JP5060575A patent/JPS5342135B2/ja not_active Expired
- 1975-04-25 DE DE19752518513 patent/DE2518513A1/en active Pending
- 1975-04-25 IE IE931/75A patent/IE41021B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3911964A (en) | 1975-10-14 |
| AR203332A1 (en) | 1975-08-29 |
| CA1019683A (en) | 1977-10-25 |
| ES225107Y (en) | 1977-06-16 |
| ES225107U (en) | 1977-02-16 |
| IE41021L (en) | 1975-10-29 |
| JPS50150020A (en) | 1975-12-01 |
| DE2518513A1 (en) | 1975-10-30 |
| AU467433B2 (en) | 1975-12-04 |
| ZA752338B (en) | 1976-03-31 |
| BR7502482A (en) | 1976-04-13 |
| GB1483675A (en) | 1977-08-24 |
| AU8024475A (en) | 1975-12-04 |
| JPS5342135B2 (en) | 1978-11-09 |
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