EP0172093A1 - Strukturelemente aus zusammengepresstem Beton und Vorrichtung zu ihrer Herstellung - Google Patents
Strukturelemente aus zusammengepresstem Beton und Vorrichtung zu ihrer Herstellung Download PDFInfo
- Publication number
- EP0172093A1 EP0172093A1 EP85401541A EP85401541A EP0172093A1 EP 0172093 A1 EP0172093 A1 EP 0172093A1 EP 85401541 A EP85401541 A EP 85401541A EP 85401541 A EP85401541 A EP 85401541A EP 0172093 A1 EP0172093 A1 EP 0172093A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- concrete
- structural elements
- hoop
- elements according
- concrete structural
- 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.)
- Granted
Links
Images
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
-
- 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
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/34—Moulds, cores, or mandrels of special material, e.g. destructible materials
-
- 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
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
Definitions
- the invention relates to concrete structural elements having a very high permissible working rate, say at least 50-100 MPa (megapascals).
- the tube and the hoop remain integral with the compressed concrete element obtained and it is therefore very important that this tube and this hoop be as inexpensive as possible.
- a hoop consisting of a tubular sheath of crossed wires mutually blocked at least at the ends of the sheath.
- This hoop and the tube can come together from manufacturing.
- Two embodiments are particularly advantageous, one in which the hoop is formed by plies included in a hardened synthetic resin, all the plies and hardened resin constituting the tube, and the other in which the hoop is a product. knitted fabric which constitutes both the hoop and the tube.
- the device shown in FIG. 1 comprises a tubular mold 1 to be filled with concrete and compression means for exerting axial compression on the concrete before the concrete is set.
- These pressure means comprise for example two pressure plates 2,2 ′ situated at the ends of the mold and means for pushing or pulling these plates towards one another.
- These means are for example one or two cylinders 3.3 ′.
- one of the plates is kept fixed and the other plate is pushed or pulled towards the fixed plate. It is convenient to use a cable 4 to pull the plates towards each other under the action of the jacks.
- one or more longitudinal tubes 5 are provided in the concrete, for example for the passage of the cable 4, for the drainage of water from the concrete or for other uses.
- the mold 1 is constituted by crossed plies of wires coated with a hardened synthetic resin.
- the resin constitutes a means for mutually blocking the strands of the plies.
- Figure 2 there is shown schematically a portion of such a hoop consisting of two or more plies 6,7 crossed at about 90 ° and wound in inverted helices.
- the wall of the tube is provided, preferably during manufacture, with small holes 8 to facilitate the dewatering of the concrete during its compression.
- the resin constitutes a first protection of. the fret.
- the hoop is a cylindrical braid.
- Figure 3 there is shown schematically a portion of such a hoop consisting of two bands 9,10 braided together so as to form inverted turns crossed at about 90 ° and to form windows 8 between the ribbons.
- the strips are mutually blocked, at least at the ends of the tube, by an adhesive agent.
- Such a hoop has a double advantage: the braid itself constitutes the molding tube and the windows constitute the orifices for discharging the water from the concrete. This embodiment is therefore even more advantageous than that of the resin tube with plies included in the wall of the tube.
- each strip consists of two superimposed ribbons and at each crossing of the two strips, one of the strips of a strip passes between the two strips of the other strip.
- the invention is not limited to a particular crossing angle of the wires, nor to a particular means for blocking the wires with respect to each other at the ends of the tube or elsewhere (glue, welding, anchoring, etc.) and does not is not limited to the embodiments which have been described.
- Figure 4 shows an alternative embodiment in which the hoop is a grid consisting of a series of annular transverse wires 11 joined by longitudinal wires 12, all of the wires being blocked by a resin (not shown in the figure 4).
- steel or carbon wires are preferably used, for example with a diameter of approximately 0.1 to 0.5 nm or glass fibers.
- the resin tube or the braid is filled with liquid concrete and an axial compression of at least 50 MPa is exerted on this concrete before setting of the concrete: the frets lengthen under the effect of the thrust of the concrete caused by the axial pressure and, after the setting of the concrete, the frets tend to return to their initial dimension creating a biaxial stress transverse to the axis of the tube.
- the mold used for the manufacture of the elements is a mold which remains incorporated in the molded element, it is particularly important that the cost of manufacturing this mold is as low as possible, which is achieved by the present invention.
- the molded products are notably characterized by the fact that the concrete constitutes a compressed mass surrounded by a hoop constituted by a sheath tubular 1 of crossed wires, in particular as described above with reference to FIGS. 2 to 4, which exerts a stress on the concrete in transverse planes.
- the concrete elements produced according to the invention are useful as bars, beams and other rigid structural elements, but a particularly advantageous application of the invention is the manufacture of concrete cables.
- the cable is formed ( Figure 6) by arranging in line cable sections M molded in accordance with the invention and by assembling these sections by a common prestressing cable which passes longitudinally through all of the sections.
- the same cable is used as that used to compress the concrete in the tube before it sets and which passes through the tubes 4.
- the common prestressing cable can advantageously be made of carbon fibers coated with hardened synthetic resin.
- the concrete cable has a diameter of 15 to 20 cm, possibly more.
- the invention makes it possible in particular to manufacture a concrete cable for making anchor lines, stay cables and bridge carrying cables.
- anchor lines in particular for offshore platforms, by means of steel tubes, having a diameter of the order of 40 to 60 cm and a wall thickness of 2 to 3 cm. , which consist of sections of tubes welded or mechanically linked and wound on a reel.
- the present invention makes it possible to replace these tubes with concrete elements which, for at least equivalent performance, can have a much smaller section, a substantially lighter weight, and no longer need to be assembled by welding or mechanically.
- the cables of the present invention due to their smaller diameter, have a much weaker wave grip than that of steel tubes. Finally, these cables are much less susceptible to corrosion than steel cables.
- the cable sections M can be separated by intermediate elements but while remaining assembled by the overall prestressing cable.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
- Bridges Or Land Bridges (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT85401541T ATE47349T1 (de) | 1984-07-27 | 1985-07-26 | Strukturelemente aus zusammengepresstem beton und vorrichtung zu ihrer herstellung. |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8411987 | 1984-07-27 | ||
FR8411987A FR2568292B1 (fr) | 1984-07-27 | 1984-07-27 | Cable en beton et procede et dispositif pour le fabriquer |
FR8411988A FR2568166B2 (fr) | 1984-07-27 | 1984-07-27 | Dispositif pour fabriquer des elements de structure rectilignes en beton ayant un taux de travail admissible eleve |
FR8411988 | 1984-07-27 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0172093A1 true EP0172093A1 (de) | 1986-02-19 |
EP0172093B1 EP0172093B1 (de) | 1989-10-18 |
Family
ID=26224086
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP85401541A Expired EP0172093B1 (de) | 1984-07-27 | 1985-07-26 | Strukturelemente aus zusammengepresstem Beton und Vorrichtung zu ihrer Herstellung |
Country Status (7)
Country | Link |
---|---|
US (1) | US4694622A (de) |
EP (1) | EP0172093B1 (de) |
KR (1) | KR890001989B1 (de) |
CA (1) | CA1259814A (de) |
DE (1) | DE3573750D1 (de) |
HK (1) | HK56290A (de) |
SG (1) | SG40090G (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0572243A1 (de) * | 1992-05-29 | 1993-12-01 | Tonen Corporation | Stahlbeton-(Strom-)Mast und Verfahren zum Reparieren mit Fiberverstärkten Composite-Matten |
US5542229A (en) * | 1993-05-14 | 1996-08-06 | Tonen Corporation | Concrete pole and method of reinforcing same |
US8386009B2 (en) | 2006-06-08 | 2013-02-26 | Suunto Oy | Sensor arrangement |
US10228081B2 (en) | 2012-11-16 | 2019-03-12 | Kongsberg Actuation Systems Ii, Inc. | Method of forming a hose assembly |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4783940A (en) * | 1985-12-28 | 1988-11-15 | Shimizu Construction Co., Ltd. | Concrete filled steel tube column and method of constructing same |
JPH01256651A (ja) * | 1988-04-01 | 1989-10-13 | Shimizu Corp | 鋼管コンクリート柱構造及びその施工方法 |
US4936006A (en) * | 1989-03-01 | 1990-06-26 | General Atomics | Method of making prestressed concrete articles |
US5065795A (en) * | 1989-03-01 | 1991-11-19 | General Atomics | Prestressed concrete articles |
US5263297A (en) * | 1989-11-02 | 1993-11-23 | Kim Joong S | Structural member with a metal shell |
US5457929A (en) * | 1989-11-02 | 1995-10-17 | Kim; Joong S. | Structural member with a metal shell |
US5613334A (en) * | 1994-12-15 | 1997-03-25 | Cornell Research Foundation, Inc. | Laminated composite reinforcing bar and method of manufacture |
US6295782B1 (en) * | 1999-06-11 | 2001-10-02 | Edward Robert Fyfe | Stay-in-place form |
US6872030B2 (en) * | 2002-01-25 | 2005-03-29 | North Pacific Group, Inc. | Wood support piling with composite wrappings and method for reinforcing the same |
US6964809B2 (en) * | 2002-02-15 | 2005-11-15 | Pedro M. Buarque de Macedo | Large high density foam glass tile |
US8453400B2 (en) * | 2003-07-22 | 2013-06-04 | Pedro M. Buarque de Macedo | Prestressed, strong foam glass tiles |
US7311965B2 (en) * | 2003-07-22 | 2007-12-25 | Pedro M. Buarque de Macedo | Strong, high density foam glass tile having a small pore size |
US7695560B1 (en) | 2005-12-01 | 2010-04-13 | Buarque De Macedo Pedro M | Strong, lower density composite concrete building material with foam glass aggregate |
DE102006047460A1 (de) * | 2006-10-07 | 2008-04-10 | Andreas Kufferath Gmbh & Co. Kg | Verstärkungsvorrichtung für den Einsatz bei Bauteilen aus vergießfähigen, aushärtenden Materialien, wie Betonwerkstoffen, sowie damit hergestellte Bauteile |
SE533634C2 (sv) * | 2008-06-30 | 2010-11-16 | Bo Blomqvist | Ostagad kompositmast |
US20110239564A1 (en) * | 2011-04-15 | 2011-10-06 | General Electric Company | Apparatus, Composite Section, and Method for On-Site Tower Formation |
KR101158522B1 (ko) * | 2011-11-30 | 2012-06-21 | 한국건설기술연구원 | 슬롯을 사용한 무용접 방식의 콘크리트 충전 강관기둥 및 그 제조 방법 |
US11987981B2 (en) | 2016-07-28 | 2024-05-21 | Carboshield, Inc. | Structural element reinforcement systems and methods |
US11718965B2 (en) | 2016-07-28 | 2023-08-08 | Carboshield, Inc. | Apparatus and method for reinforcing a partially submerged structural element |
US11118364B2 (en) * | 2016-07-28 | 2021-09-14 | Carboshield, Inc. | Structural element reinforcement systems and methods |
AT520386B1 (de) * | 2017-08-24 | 2019-10-15 | Univ Wien Tech | Verfahren zur Herstellung einer integralen Brücke und integrale Brücke |
US11859386B2 (en) * | 2019-08-19 | 2024-01-02 | Raymond Alan Low | Cable-supported structural assembly with flexible reinforced concrete structural element |
US11408176B2 (en) * | 2019-08-19 | 2022-08-09 | Raymond Alan Low | Multi-axially braided reinforcement sleeve for concrete columns and method for constructing concrete columns |
US11619047B2 (en) * | 2019-08-19 | 2023-04-04 | Raymond Alan Low | Braided multi-axial sleeve system used as a structural reinforcement for concrete columns and method for constructing concrete columns |
US11976768B2 (en) | 2022-04-07 | 2024-05-07 | Carboshield, Inc. | Composite reinforcement of tubular structures |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2300209A1 (de) * | 1972-01-03 | 1973-07-12 | Wettern | Betonfertigteil und verfahren zu seiner herstellung |
FR2373386A1 (fr) * | 1976-12-09 | 1978-07-07 | Kuraray Plastics Co | Procede et appareil de realisation de tubes souples armes de fibres et resistant a la pression |
FR2480327A1 (fr) * | 1980-04-11 | 1981-10-16 | Ritter Mario | Dispositif d'assemblage provisoire ou definitif d'elements prefabriques pour la construction |
FR2484355A1 (fr) * | 1980-06-12 | 1981-12-18 | Precontrainte Structures Ste F | Hauban sous-marin |
EP0129480A1 (de) * | 1983-06-17 | 1984-12-27 | Bouygues | Verfahren und Vorrichtung zum Herstellen von Strukturelementen aus Beton und auf diese Weise hergestellte Elemente |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2593714A (en) * | 1943-06-30 | 1952-04-22 | Roy H Robinson | Method of making cellular structures |
US2645090A (en) * | 1951-02-06 | 1953-07-14 | Raymond Concrete Pile Co | Reinforcing of concrete piles |
US3177902A (en) * | 1957-12-11 | 1965-04-13 | Rubenstein David | Reinforced pipe and method of making |
US3162709A (en) * | 1961-07-31 | 1964-12-22 | American Form & Equipment Co | Method of forming prestressed tubular structures |
DE2129143A1 (de) * | 1971-06-11 | 1972-12-21 | Wesch, Ludwig, Prof Dr , 6900 Heidelberg | Kunstbetonlaminat |
NL135070C (de) * | 1965-07-17 | |||
US3970495A (en) * | 1974-07-24 | 1976-07-20 | Fiber Science, Inc. | Method of making a tubular shaft of helically wound filaments |
FR2535281A1 (fr) * | 1982-10-29 | 1984-05-04 | Precontrainte Ste Fse | Hauban sous-marin a tirants en beton, notamment pour haubanage oblique |
-
1985
- 1985-07-26 EP EP85401541A patent/EP0172093B1/de not_active Expired
- 1985-07-26 DE DE8585401541T patent/DE3573750D1/de not_active Expired
- 1985-07-26 US US06/759,446 patent/US4694622A/en not_active Expired - Fee Related
- 1985-07-26 CA CA000487626A patent/CA1259814A/en not_active Expired
- 1985-07-26 KR KR1019850005374A patent/KR890001989B1/ko not_active IP Right Cessation
-
1990
- 1990-06-06 SG SG400/90A patent/SG40090G/en unknown
- 1990-07-26 HK HK562/90A patent/HK56290A/xx not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2300209A1 (de) * | 1972-01-03 | 1973-07-12 | Wettern | Betonfertigteil und verfahren zu seiner herstellung |
FR2373386A1 (fr) * | 1976-12-09 | 1978-07-07 | Kuraray Plastics Co | Procede et appareil de realisation de tubes souples armes de fibres et resistant a la pression |
FR2480327A1 (fr) * | 1980-04-11 | 1981-10-16 | Ritter Mario | Dispositif d'assemblage provisoire ou definitif d'elements prefabriques pour la construction |
FR2484355A1 (fr) * | 1980-06-12 | 1981-12-18 | Precontrainte Structures Ste F | Hauban sous-marin |
EP0129480A1 (de) * | 1983-06-17 | 1984-12-27 | Bouygues | Verfahren und Vorrichtung zum Herstellen von Strukturelementen aus Beton und auf diese Weise hergestellte Elemente |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0572243A1 (de) * | 1992-05-29 | 1993-12-01 | Tonen Corporation | Stahlbeton-(Strom-)Mast und Verfahren zum Reparieren mit Fiberverstärkten Composite-Matten |
US5542229A (en) * | 1993-05-14 | 1996-08-06 | Tonen Corporation | Concrete pole and method of reinforcing same |
US8386009B2 (en) | 2006-06-08 | 2013-02-26 | Suunto Oy | Sensor arrangement |
US10228081B2 (en) | 2012-11-16 | 2019-03-12 | Kongsberg Actuation Systems Ii, Inc. | Method of forming a hose assembly |
US10281064B2 (en) | 2012-11-16 | 2019-05-07 | Kongsberg Actuation Systems Ii, Inc. | Method of forming a hose assembly |
Also Published As
Publication number | Publication date |
---|---|
KR890001989B1 (ko) | 1989-06-07 |
CA1259814A (en) | 1989-09-26 |
DE3573750D1 (en) | 1989-11-23 |
KR860000939A (ko) | 1986-02-20 |
EP0172093B1 (de) | 1989-10-18 |
US4694622A (en) | 1987-09-22 |
HK56290A (en) | 1990-08-03 |
SG40090G (en) | 1990-11-23 |
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