ES2282046B2 - DEVICE FOR PROTECTING THE EXTREMES OF ARMORS FROM PREFABRICATED PARTS IN CONCRETE WITH PRE-STRESSED ARMORS. - Google Patents
DEVICE FOR PROTECTING THE EXTREMES OF ARMORS FROM PREFABRICATED PARTS IN CONCRETE WITH PRE-STRESSED ARMORS. Download PDFInfo
- Publication number
- ES2282046B2 ES2282046B2 ES200600851A ES200600851A ES2282046B2 ES 2282046 B2 ES2282046 B2 ES 2282046B2 ES 200600851 A ES200600851 A ES 200600851A ES 200600851 A ES200600851 A ES 200600851A ES 2282046 B2 ES2282046 B2 ES 2282046B2
- Authority
- ES
- Spain
- Prior art keywords
- concrete
- cover
- mold
- reinforcements
- strut
- 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.)
- Active
Links
- 239000004567 concrete Substances 0.000 title claims abstract description 23
- 230000002787 reinforcement Effects 0.000 claims abstract description 17
- 239000011381 foam concrete Substances 0.000 claims abstract description 4
- 230000014759 maintenance of location Effects 0.000 claims abstract description 3
- 229920003023 plastic Polymers 0.000 claims abstract description 3
- 239000004033 plastic Substances 0.000 claims abstract description 3
- 239000011178 precast concrete Substances 0.000 claims description 4
- 229920001684 low density polyethylene Polymers 0.000 claims description 2
- 239000004702 low-density polyethylene Substances 0.000 claims description 2
- 238000004904 shortening Methods 0.000 abstract description 2
- 230000006978 adaptation Effects 0.000 abstract 1
- 238000000465 moulding Methods 0.000 description 3
- 241001669679 Eleotris Species 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/08—Members specially adapted to be used in prestressed constructions
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/161—Protective caps for the ends of reinforcing bars
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/20—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups of material other than metal or with only additional metal parts, e.g. concrete or plastics spacers with metal binding wires
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
Dispositivo para proteger los extremos de las armaduras de piezas prefabricadas en hormigón con armaduras pretensadas, que comprende una funda tubular plástica para enfundar con un ajuste razonable por el interior del molde donde se fabrica la pieza de hormigón los puntales que efectúan el pretensado de las armaduras. Cada funda ajusta por un extremo en la armadura acoplada al puntal y por el otro tiene un ala que solapa los bordes del orificio donde penetra el puntal en el molde en orden a evitar el paso de aire u hormigón. La funda tiene una zona deformable para su acortamiento y adaptación al contorno del molde al efectuar el pretensado, así como unos relieves que favorecen su retención en la pieza de hormigón terminada a fondo perdido. El dispositivo se completa con un tapón que protege el extremo de la armadura.Device for protecting the ends of the reinforcements of prefabricated concrete parts with prestressed reinforcements, comprising a plastic tubular sheath to cover with a reasonable fit inside the mold where the concrete part is manufactured the struts that make the prestressing of the reinforcements . Each cover fits at one end in the reinforcement coupled to the strut and on the other has a wing that overlaps the edges of the hole where the strut penetrates the mold in order to prevent the passage of air or concrete. The sheath has a deformable zone for its shortening and adaptation to the contour of the mold when prestressing, as well as reliefs that favor its retention in the piece of concrete finished with a lost bottom. The device is completed with a cap that protects the end of the armor.
Description
Dispositivo para proteger a los extremos de las armaduras de piezas prefabricadas en hormigón con armaduras pretensadas.Device to protect the ends of reinforcements of precast concrete parts with reinforcements prestressed
La presente invención se refiere a un dispositivo para proteger los extremos de las armaduras de piezas prefabricadas en hormigón con armaduras pretensadas.The present invention relates to a device to protect the ends of the parts armor Precast concrete with prestressed reinforcements.
En la actualidad se conocen piezas prefabricadas en hormigón con armaduras pretensadas que aumentan su resistencia, tales como viguetas y traviesas ferroviarias.Currently, prefabricated parts are known in concrete with prestressed reinforcements that increase its resistance, such as joists and railway sleepers.
Estas piezas se fabrican en un molde donde se colocan las armaduras, y dotado de orificios laterales enfrentados por donde se introducen unos puntales con roscas hembras donde se fijan los extremos opuestos y roscados de las armaduras, aplicando la pretensión a la armadura a través de los puntales por medios hidráulicos, y vertiendo en el molde, vibrando, curando y fraguando hormigón para obtener la pieza terminada, desenroscando entonces los puntales y sellando los huecos generados en la masa de hormigón por la penetración de los puntales en el molde, ya que en caso contrario los extremos roscados de las armaduras quedarían expuestos a la corrosión.These pieces are manufactured in a mold where place the armor, and endowed with facing side holes where some struts with female threads are introduced where fix the opposite and threaded ends of the reinforcements, applying the claim to armor through the struts by means hydraulic, and pouring into the mold, vibrating, curing and setting concrete to get the finished piece, then unscrewing the struts and sealing the gaps generated in the concrete mass by penetration of the struts in the mold, since in case otherwise the threaded ends of the reinforcements would remain exposed to corrosion.
El inconveniente consiste en que los orificios del molde tienen cierta holgura con los puntales, por lo que puede producirse el paso de hormigón o aire y propiciar la aparición de oclusiones de aire en la pieza moldeada, reduciendo su resistencia mecánica. Para evitar esto se colocan unos conos de silicona por medios rudimentarios por el interior del molde, que se recuperan de la pieza terminada por medios manuales, pellizcándolos con alicates para su reutilización, siendo éste un proceso lento, costoso y de riesgo para la posterior reutilización de los conos al suponer un evidente desgaste de los mismos impidiendo conseguir un resultado satisfactorio, y además con un resultado imperfecto.The drawback is that the holes of the mold have some slack with the struts, so you can occur the passage of concrete or air and promote the appearance of air occlusions in the molded part, reducing its resistance mechanics. To avoid this, silicone cones are placed by rudimentary means inside the mold, which are recovered from the piece finished by manual means, pinching them with pliers for reuse, this being a slow, expensive and risk for the subsequent reuse of the cones when assuming a evident wear of the same preventing to obtain a result satisfactory, and also with an imperfect result.
Estos inconvenientes se subsanan con la utilización del dispositivo de la invención.These inconveniences are corrected with the use of the device of the invention.
El dispositivo de la intención sirve de una manera óptima para proteger los extremos de las armaduras pretensadas de piezas prefabricadas en hormigón, subsanando los inconvenientes descritos.The intention device serves as a Optimal way to protect the ends of the armor prestressed of precast concrete parts, correcting the inconveniences described.
De acuerdo con la invención, el dispositivo comprende una funda tubular, colocable por el interior del molde, formal y dimensionalmente adecuada para enfundar con un ajuste razonable el puntal que se fija al extremo la armadura al introducirse por el orificio al efecto del molde.According to the invention, the device it comprises a tubular sheath, attachable inside the mold, formally and dimensionally suitable to sheath with an adjustment reasonable the strut that is fixed to the end the armor to enter through the hole for the purpose of the mold.
Dicha funda ajusta por un extremo en la armadura acoplada al puntal y tiene un ala en el extremo opuesto que solapa los bordes del orificio por donde penetra el puntal, evitando el paso de aire u hormigón.Said cover fits at one end in the armor attached to the strut and has a wing at the opposite end that overlaps the edges of the hole through which the strut penetrates, avoiding the air or concrete passage.
Además dicha funda tiene una zona deformable que permite su acortamiento al desplazarse el puntal hacia el exterior del molde para efectuar el pretensado. Esta zona deformable se ubica en posición cercana al ala, y su deformación significa que la funda acompaña al movimiento del puntal y por tanto no deja huecos libres que podrían traducirse en oclusiones o burbujas de aire en la pieza terminada. Además, esta zona deformable y el propio material de la funda posibilitan la adaptación del ala al molde, teniendo en cuanta que por ejemplo en moldes de traviesas ferroviarias estas paredes no serán perpendiculares al puntal, sino que tendrán una cierta inclinación.Furthermore, said cover has a deformable zone that allows its shortening by moving the strut outwards of the mold for prestressing. This deformable zone is located in a position close to the wing, and its deformation means that the Sheath accompanies the strut movement and therefore leaves no gaps free that could result in occlusions or air bubbles in The finished piece. In addition, this deformable zone and the own Sheath material make it possible to adapt the wing to the mold, taking into account that for example in sleeper molds railway these walls will not be perpendicular to the strut, but They will have a certain inclination.
Se coloca una funda para cada puntal que accede al molde, y una vez vertido, vibrado, curado y fraguado el hormigón se desenroscan los puntales de los extremos de las armaduras quedando retenidas las fundas en la masa del hormigón a fondo perdido, con un coste mínimo y muy inferior a la manipulación necesaria para la extracción de los conos de silicona usualmente utilizados.A cover is placed for each strut that accesses to the mold, and once poured, vibrated, cured and set the concrete unscrew the struts of the ends of the reinforcements being retained the covers in the mass of the concrete to lost fund, with minimal cost and much less than handling necessary for the removal of silicone cones usually used
El dispositivo también comprende un tapón que sirve para estancar el hueco generado por el moldeo del puntal en la masa de hormigón y proteger el extremo de la armadura ubicado precisamente en este hueco. Este tapón preferentemente se coloca una vez finalizada la pieza, que en el caso de traviesas ferroviarias significa una vez añadidos los componentes para el anclaje de las vías.The device also comprises a plug that serves to stall the gap generated by the molding of the strut in the concrete mass and protect the end of the reinforcement located precisely in this hole. This cap is preferably placed once the piece is finished, which in the case of sleepers railway means once added the components for the anchoring of the tracks.
La figura 1 muestra una vista de la funda y el tapón del dispositivo de la invención.Figure 1 shows a view of the cover and the cap of the device of the invention.
La figura 2 muestra la colocación de la funda
por el interior de un molde para una traviesa
ferro-
viaria.Figure 2 shows the placement of the sheath inside a mold for a railway sleeper
road.
La figura 3 muestra una vista del lateral de la traviesa ya fraguada donde se aprecian las armaduras, los huecos generados en el moldeo por los puntales, y la protección mediante los tapones.Figure 3 shows a side view of the Naughty already set where you can see the armor, the gaps generated in the molding by the struts, and protection by the plugs.
El dispositivo 1 de la invención comprende una funda 2 tubular ligeramente cónica de material plástico, preferentemente de polietileno de baja densidad, destinada a enfundar los puntales 3 que aplican la pretensión a los extremos 4 roscados de las armaduras 5 de una pieza 6 de hormigón con armaduras pretensadas, funda 2 que ajusta razonablemente en el puntal 3 correspondiente para reducir al mínimo el hueco que su moldeado formará en la masa de hormigón.The device 1 of the invention comprises a 2 slightly conical tubular sheath of plastic material, preferably of low density polyethylene, intended for sheath the struts 3 that apply the pretension to the ends 4 threaded reinforcements 5 of a concrete piece 6 with prestressed armors, cover 2 that fits reasonably in the corresponding strut 3 to minimize the gap that your molding will form in the concrete mass.
La funda 2 está provista de un cuerpo 11 que cubre la armadura 5, y de un ala 7 que solapa los bordes del orificio 8 definido en el molde 9 por donde penetra el puntal 3 al interior de dicho molde.The cover 2 is provided with a body 11 which covers the armor 5, and a wing 7 that overlaps the edges of the hole 8 defined in the mold 9 where the strut 3 penetrates the inside of said mold.
En un sector del cuerpo 11 cercano a dicho ala 7 se encuentra una zona deformable 10 tipo acordeón o similar que se deforma al efectuar el pretensado, acompañando al puntal 3 y evitando la generación de huecos en la masa de hormigón, asentando perfectamente en los bordes del orificio 8 aunque no sean perpendiculares al puntal, y por tanto al eje de la fundas.In a sector of body 11 near said wing 7 there is a deformable zone 10 accordion type or similar that is deforms when prestressing, accompanying strut 3 and avoiding the generation of holes in the concrete mass, settling perfectly at the edges of hole 8 even if they are not perpendicular to the strut, and therefore to the axis of the covers.
Una vez vertido, vibrado, curado y fraguado el hormigón se desenroscan y retiran los puntales 3, que habrán generado huecos en la pieza 6 por donde asoman los extremos 4 de las armaduras 5 y en cuyos huecos quedan retenidas a fondo perdido las fundas 2, mejorando la retención de éstas en el hormigón, especialmente al desenroscar los puntales, por medio de unos relieves 12, 13 provistos en las mismas reconsistentes en unas protuberancias 12 emergentes del ala 7 y en unos escalonamientos 13 definidos en el exterior del cuerpo 11.Once poured, vibrated, cured and set the concrete unscrew and remove the struts 3, which will be generated gaps in piece 6 where ends 4 of the armor 5 and in whose gaps they are retained thoroughly lost the covers 2, improving the retention of these in the concrete, especially when unscrewing the struts, by means of reliefs 12, 13 provided in the same reconsistent ones in some emerging protuberances 12 of wing 7 and in a few steps 13 defined on the outside of the body 11.
Para proteger los extremos 4 de las armaduras 5, la invención implementa un tapón 14 de dimensiones adecuadas para encajar por el interior de la funda 2, gracias a unas aletas 15 salientes laterales y a un ala 16 de solape exterior.To protect the ends 4 of the armor 5, the invention implements a plug 14 of suitable dimensions for fit inside the cover 2, thanks to fins 15 lateral projections and an outer flap wing 16.
Descrita suficientemente la naturaleza de la invención, así como la manera de realizarse en la práctica, debe hacerse constar que las disposiciones anteriormente indicadas y representadas en los dibujos adjuntos son susceptibles de modificaciones de detalle en cuanto no alteren el principio fundamental.Describe sufficiently the nature of the invention, as well as how to perform it in practice, should be noted that the provisions indicated above and represented in the attached drawings are susceptible to modifications of detail as long as they do not alter the principle fundamental.
Claims (3)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES200600851A ES2282046B2 (en) | 2006-03-31 | 2006-03-31 | DEVICE FOR PROTECTING THE EXTREMES OF ARMORS FROM PREFABRICATED PARTS IN CONCRETE WITH PRE-STRESSED ARMORS. |
| PCT/ES2007/070018 WO2007113363A1 (en) | 2006-03-31 | 2007-01-24 | Device for protecting the ends of reinforcements for prefabricated concrete elements with prestressed reinforcements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES200600851A ES2282046B2 (en) | 2006-03-31 | 2006-03-31 | DEVICE FOR PROTECTING THE EXTREMES OF ARMORS FROM PREFABRICATED PARTS IN CONCRETE WITH PRE-STRESSED ARMORS. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES2282046A1 ES2282046A1 (en) | 2007-10-01 |
| ES2282046B2 true ES2282046B2 (en) | 2008-12-16 |
Family
ID=38512283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES200600851A Active ES2282046B2 (en) | 2006-03-31 | 2006-03-31 | DEVICE FOR PROTECTING THE EXTREMES OF ARMORS FROM PREFABRICATED PARTS IN CONCRETE WITH PRE-STRESSED ARMORS. |
Country Status (2)
| Country | Link |
|---|---|
| ES (1) | ES2282046B2 (en) |
| WO (1) | WO2007113363A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2393003B1 (en) * | 2011-04-15 | 2013-10-23 | Formaciones Micropilotes Y Anclajes97, S.L. | HEAD EMBUTIDA FOR ANCHORS, PERMANENT OR PROVISIONAL, IN CONSTRUCTION SYSTEMS. |
| ITBS20130131A1 (en) * | 2013-09-25 | 2015-03-26 | Essebi Plast S R L | RAILWAY SLEEPER AND ITS ACCESSORY |
| RU2675606C1 (en) * | 2017-07-31 | 2018-12-20 | Акционерное Общество "Комплексное Сервисное Обслуживание Пути" | Method of protection of anchor-clamps against grip of reinforcing bars in manufacture of reinforced concrete rail bases |
| RU182321U1 (en) * | 2017-09-07 | 2018-08-14 | Акционерное Общество "Комплексное Сервисное Обслуживание Пути" | Stopper plug for protection of reinforcement for rail base |
| CN111549980B (en) * | 2020-05-21 | 2021-11-12 | 中建八局轨道交通建设有限公司 | Protection device and protection method for steel bar pre-buried sleeve |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2695754A (en) * | 1951-07-03 | 1954-11-30 | Dyckerhoff & Widmann Ag | Railway track sleeper |
| AT375716B (en) * | 1980-08-16 | 1984-09-10 | Dyckerhoff & Widmann Ag | RECOVERABLE FORMWORK FOR THE ANCHORING AREA OF A TENSION LINK IN A CONCRETE COMPONENT |
| ES8504536A1 (en) * | 1984-06-19 | 1985-05-01 | Marco Gracia Virgilio | Procedure for the production of prefabricated concrete pieces provided with pre-tensioned armor rods (Machine-translation by Google Translate, not legally binding) |
| FR2775492B1 (en) * | 1998-02-27 | 2000-05-05 | Freyssinet Int Stup | PREFABRICATED CONSTRUCTION ELEMENTS, PRE-STRESSED STRUCTURE MADE OF SUCH ELEMENTS AND METHOD FOR MANUFACTURING SUCH ELEMENTS |
| DE10033845A1 (en) * | 2000-07-12 | 2002-01-24 | Aloys Wobben | Pre-stressed concrete tower |
| US6834890B2 (en) * | 2002-05-07 | 2004-12-28 | Felix L. Sorkin | Coupler apparatus for use with a tendon-receiving duct in a segmental precast concrete structure |
-
2006
- 2006-03-31 ES ES200600851A patent/ES2282046B2/en active Active
-
2007
- 2007-01-24 WO PCT/ES2007/070018 patent/WO2007113363A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2007113363A1 (en) | 2007-10-11 |
| ES2282046A1 (en) | 2007-10-01 |
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