WO2013079731A1 - Lightweight permanent formwork including an external mesh - Google Patents

Lightweight permanent formwork including an external mesh Download PDF

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Publication number
WO2013079731A1
WO2013079731A1 PCT/ES2011/000347 ES2011000347W WO2013079731A1 WO 2013079731 A1 WO2013079731 A1 WO 2013079731A1 ES 2011000347 W ES2011000347 W ES 2011000347W WO 2013079731 A1 WO2013079731 A1 WO 2013079731A1
Authority
WO
WIPO (PCT)
Prior art keywords
expanded polystyrene
formwork
steel
lost
sheets
Prior art date
Application number
PCT/ES2011/000347
Other languages
Spanish (es)
French (fr)
Inventor
Rafael INCLÁN GÓMEZ
Original Assignee
Sanfer Global System, S.L.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sanfer Global System, S.L. filed Critical Sanfer Global System, S.L.
Priority to PCT/ES2011/000347 priority Critical patent/WO2013079731A1/en
Publication of WO2013079731A1 publication Critical patent/WO2013079731A1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/84—Walls made by casting, pouring, or tamping in situ
    • E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
    • E04B2/8647—Walls made by casting, pouring, or tamping in situ made in permanent forms with ties going through the forms
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/84—Walls made by casting, pouring, or tamping in situ
    • E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
    • E04B2/8658—Walls made by casting, pouring, or tamping in situ made in permanent forms using wire netting, a lattice or the like as form leaves

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Abstract

The invention relates to lightweight permanent formwork formed by sheets of expanded polystyrene (1) which are incorporated into a cage pre-formed using electro-welded steel meshes (2) that are joined to one another using transverse steel elements (3) including holes which can receive the reinforcing steel bars, both vertical and horizontal, resulting from the structural calculation for the element. All of the aforementioned parts together form a housing having a shape and size matching the element to be constructed. The formwork is characterised in that the body is formed by two layers, namely: an external layer formed by meshes (2) of electro-welded corrugated steel bars, which stiffens the assembly; and, glued thereto, a layer formed by expanded polystyrene sheets (1) that seal the mould during the filling process.

Description

DESCRIPCIÓN  DESCRIPTION
ENCOFRADO PERDIDO ALIGERADO CON MALLAZG EXTERIOR.  LOST FORMED LIGHTENED WITH MALLAZG EXTERIOR.
Objeto e la Invención Object of the Invention
la presente Invención se refiere a un nuevo encofrado perdido aligerado para la obtención de elementos a base de un conglomerante, por ejemplo de hormigón armado, la Invención es aplicable a elementos verticales o Inclinados, bien s an elementos estructurales corno muros, pilares o zapatas, o no estructurales como tabiques y cerramientos.  The present invention relates to a new lost formwork lightened to obtain elements based on a binder, for example reinforced concrete, the invention is applicable to vertical or inclined elements, or structural elements such as walls, pillars or footings, or non-structural as partitions and enclosures.
El encofrado de la invención es del tipo de los que incorporar! en su pared poüestireno expandido y el objeto de la invención es conseguir un espesor de pared mínimo,, sin menoscabo- dé su resistencia mecánica frente a la presión radial ejercida por -el hormigón en el momento de su vertido en el interior del encofrado. The formwork of the invention is of the type to be incorporated! in its expanded polystyrene wall and the object of the invention is to achieve a minimum wall thickness, without undermining its mechanical resistance against the radial pressure exerted by the concrete at the time of its pouring into the interior of the formwork.
Antecedentes de la invención BACKGROUND OF THE INVENTION
Evidentemente, para construir un elemento a base de, por ejemplo, hormigón armado, es preciso disponer de un molde o encofrado que confiera a la misma su configuración y dimensiones, debiendo aunar dicho encofrado dos csrac en'stieas distintas y complementarias, por un lado que asegure un perfecto acabado superficial para el elemento, y por otro, que su costo sea suficientemente bajo para hacerlo rentable ai constructor.  Obviously, to build an element based on, for example, reinforced concrete, it is necessary to have a mold or formwork that confers on it its configuration and dimensions, said formwork having to join two csrac in different and complementary ways, on the one hand that ensures a perfect surface finish for the element, and on the other, that its cost is low enough to make it profitable to the builder.
En el ámbito de ios encofrados perdidos y cuando se traía de obtener elementos verticales o inclinados, son conocidos encofrados a base de placas metálicas o fenóiscas, con una estructura metálica exterior que da rigidez -y resistencia al conjunto. In the field of the lost formwork and when it was brought to obtain vertical or inclined elements, are known formworks based on metal plates or pheromones, with an exterior metallic structure that gives rigidity - and resistance to the whole.
Esta solución, aunque funciona i me ote valida, result muy pesada e implica unos tiempos de montaje y desmontaje gra e^ ass ' como la necesidad de utilización dé medios auxiliares para su montaje. Although this solution works ote i me valid, heavy and involves a result assembly time and gra removal and ^ ass' as the need to use auxiliary means for mounting.
De forma más concreta el encofrado de esta patente esta constituido por planchas de pollestireno unidas transversaimente definiendo un interior hueco, colncidente con el elemento a obtener, con la especial particularidad de que las planchas de poflssíireno llevan adheridas en su cara exterior sendas mallas de acero eieetrosoldado que dotan a la pieza de rigidez y resistencia. Estas mallas de acero eieetrosoldado se ensambla mediante soldadura en ta Her formando una jaula de barras de acero corrugado. Posteriormente se colocan en el interior de ta jaula las planchas de poilestireno expandido, andándolas a las mallas de acero mediante unas piezas qu hacen de separadores, asegurando que la separación entre sendas planchas de po iestlreno se mantenga fija durante el proceso de verti o del hormigón. More specifically the formwork of this patent is constituted by plates of pollestireno united transversaimente defining a hollow interior, colncidente with the element to obtain, with the special particularity that the plates of poflssíireno have adhered on its external side paths steel welded welded that give the piece rigidity and resistance. These welded steel meshes are assembled by welding in the Her forming a cage of corrugated steel bars. Subsequently, the expanded polystyrene sheets are placed inside the cage, moving them to the steel meshes by means of pieces that make them separators, ensuring that the separation between the individual sheets of solid waste is kept fixed during the pouring process of the concrete. .
Descri peló de la Invención Descri peló de la Invención
Ei encofrado perdido aligerado que la Invención propone consigue reducir sustanciaimente el peso del elementó, sin menoscabo de su resistencia mecánica, como  The formwork lost lightened that the Invention proposes manages to reduce substantially the weight of the element, without diminishing its mechanical resistance, as
MOJA SE- REEMPLAZO (Regía 26} anteriormente se H tííc o, lo que supone una sustancia! reducción de ¡os tiempos de monta e del elemento. MOJA SE- REPLACEMENT (Regía 26) Previously, it was Hypical, which is a substance! reduction of assembly times of the element.
Para ello y de forma más concreta se ha previsto que las planchas de poliestireno S expandido lleven adheridas en SÜ cara exterior sendas mallas d acero electrosoMado. De esta manera,, se dota si conjunto de: "la rigidez y resistencia mecánica necesarias para resistir la presión radial ejercida por el hormigón en el momento de su vertido en el Interior del encofrado, For this purpose and in a more specific way, it has been foreseen that the expanded polystyrene plates S have adhered on SÜ external side steel meshes electrosoMado. In this way, it is endowed if set of: " the rigidity and mechanical resistance necessary to resist the radial pressure exerted by the concrete at the moment of its pouring into the interior of the formwork,
Al ser un encofrado perdido, las planchas de poliestireno expandido quedan incorporadas de0 form definitiva en el exterio de! elemento que se quiere construir. Éstas mejoran considerablemente la capacidad de aislamiento térmico del elemento construido. Siendo ésta otra de las ventajas de la invención. Being a lost formwork, the expanded polystyrene sheets are incorporated in a definitive form in the exterior of the building. element that you want to build. These considerably improve the thermal insulation capacity of the constructed element. This being another advantage of the invention.
Igualmente, aplicando una fuente de caior a las planchas de poliestireno expandido «na5 vez se ha vertido y endurecido el conglomerante utilizado, hormigón armado en la mayoría de ios casos, se pueden hacer las rozas necesarias para el paso de instalaciones de forma fácil, rápida y sin generación de residuos. Likewise, by applying a source of caior to expanded polystyrene sheets, "once the binder used has been poured and hardened, reinforced concrete in most cases, the necessary chases for the passage of installations can be made easily, quickly and without waste generation.
Descripción de los dibujosDescription of the drawings
0 Para complementar l descripción que se está realizando y con objeto de ayudara una mejor comprensión de las características del invento., de acuerdo a un ejemplo de realización práctica del mismo, se acompaña como parte integrante de dicha descripción, dos hojas de planos en la que con carácter ilustrativo y no limitativo y en una única figura se ha representado, esquemáticamente y en sección transversal, un encofrado perdido aligerado realizado de acuerdo5 con el objeto de la presente invención, y en la segunda oja de planos se ha representado un detalle del atado entre paneles adyacentes mediante el cerco perfmetr-al que se dispone. 0 To complement the description that is being made and in order to help a better understanding of the characteristics of the invention . , according to an example of a practical embodiment thereof, two sheets of drawings are attached as an integral part of said description, in which, in an illustrative and non-limiting manner and in a single figure, a schematic and cross-sectional representation has been shown, lightweight lost formwork made in accordance with the object of the present invention, and in the second sheet of drawings a detail of the tie between adjacent panels has been represented by the perfmetr-al fence that is available.
Realizador! preferente < <fé la invención Producer! preferred << faith the invention
A la vista de la figura puede observarse cómo s! encofrado perdido aligerado ue se preconiza0: está estructurado a partir de a a lámina de poliestireno expandido (!) que sirve de barrera imperoieafele en el contexto del encofrado, unas mallas de acero ejectrosoldado (2) formadas por barras de acero de diámetro y separación entre las mismas acordes con las presiones radiales que ejercerá el hormigón "dura ote su vertido y que .aseguran la pianeldad del elemento, unos elementos transversales de acero (3) qué une ambas planchas y que dotan al conjunto de la5 resistencia necesaria para mantener invariable el hueco Interior creado entre las planchas. Así mismo estos elementos transversales de acero (3) llevan incorporadas unas aberturas entre las que se disponen las bar-fas de acero corrugado necesarias por cálculo del elemento est ructural.  In view of the figure can be seen how s! lightened lost formwork that is recommended: it is structured from aa sheet of expanded polystyrene (!) that serves as an imperoieafele barrier in the context of the formwork, a steel meshes welded (2) formed by steel bars of diameter and separation between the same chords with the radial pressures that will exert the concrete "dura ote its discharge and that assure the pianeldad of the element, transversal elements of steel (3) that unites both plates and that endow to the set of the 5 necessary resistance to maintain invariable the hollow Interior created between the plates Also these steel transversal elements (3) have built-in openings between which the bar-fas of corrugated steel necessary by calculation of the structural element.
Adicionalmente, se pueden incorporar en el perímetr del panel de encofrado perdido0 aligerado cercos de acero que mejoran la rigidez y resistencia del conjunto. A su vez también sirven para hacer la unión paneles adyacentes. Esta unión puede hacer mediante soldadura o atando ambos cercos con alambre de acero. Additionally, steel fences that improve the rigidity and strength of the assembly can be incorporated into the perimeter of the lost formwork panel. In turn they also serve to make the union adjacent panels. This connection can be done by welding or by tying both fences with steel wire.
SOJA m REEMPLAZO {Regla 26) U se considera necesario hacer más extensa está descripción para que cualquier experto en la materia comprenda el alcance de la invención Y s e tajas que de ia misma se derivan. SOY m REPLACEMENT {Rule 26) It is considered necessary to make this description more extensive so that any expert in the field understands the scope of the invention and chooses that from it are derived.
Los materiales, forma, tamaño y disposición de ios elementos serán susceptibles de variación siempre y cuando ello no suponga una alteración en la esenclalltíad del invento, los términos en que se ha redactado esta memoria deberán ser tomados siempre en sentido amplío y no limitativo. The materials, form, size and disposition of the elements will be susceptible of variation as long as this does not suppose an alteration in the esenclalltíad of the invention, the terms in which this report has been written should always be taken in a broad and non-limiting sense.

Claims

REWNOiCAGONES REWNOiCAGONES
1. - Encofrado perdido aligerado, que estando constituido por planchas d poiiestireno expandido que se incorporan a una Jaula formada previamente por mafias de acero eiectrosoldads, u idas entre sí por elementos transversales de acero que incorporan uribs orificios por los que es posible disponer las barras de acero de armado, tanto verticales como horizontales, que resulten del cálculo estructural del elemento.  1. - Lost lightened formwork, which is constituted by sheets of expanded polystyrene that are incorporated into a cage previously formed by mafias of steel eiectrosoldads, u gone to each other by transverse steel elements that incorporate uribs holes through which it is possible to arrange the bars of reinforcing steel, both vertical and horizontal, resulting from the structural calculation of the element.
Dichas piezas configuran en su conjunto un alojamiento formal y dimensionalmente coín idente con el elemento construir. Se caracteriza porque si citado cuerpo está formado por dos capas. Una exterior compuesta por mallas de barras de acero corrugado electrosoidadas que da rigidez al -conjunto y pegada a ésta, una capa formada por planeas de poiiesíireno expandido que aseguran la estanqueldad del molde durante el proceso de relleno del mismo.  Said pieces configure as a whole a formal and dimensionally stable housing idente with the construct element. It is characterized because if said body is formed by two layers. An exterior composed of meshes of electro-welded corrugated steel bars that gives rigidity to the set-up and attached to it, a layer formed by expanded polystyrene plans that ensure the tightness of the mold during the filling process thereof.
2. - Encofrado perdido aligerado caracterizado porque una vez se ha vertido y fraguado el conglomerante, abituaimente hormigón armado, posee en sus caras exteriores sendas planchas de poiiestireno expandido que dotan al: conjunto una -a ta capacidad de -aislamiento térmico, 2. - Lost lightened formwork characterized because once the binder has been poured and cured, abituaimente reinforced concrete, has on its outer faces paths of expanded polystyrene that provide the: a-a ta capacity of thermal isolation,
3. ~ Encofrado perdido aligerado caracterizado porque a través de las capas exteriores de poiiestireno expandido se puede hacer el paso de conducciones de instalaciones de forma limpia y rápida. Para la realización de agujeros a través de los que se pasarán dichas conducciones basta con aplicar una fuente de calor. 3. Lightweight lost formwork characterized by the fact that through the outer layers of expanded polystyrene it is possible to make the passage of installations pipes in a clean and fast way. For the realization of holes through which these pipes will pass, it suffices to apply a source of heat.
HOJA BE -B EMFLÁZÍO (Regia- 26} SHEET BE -B EMFLÁZÍO (Regia- 26}
PCT/ES2011/000347 2011-12-02 2011-12-02 Lightweight permanent formwork including an external mesh WO2013079731A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/ES2011/000347 WO2013079731A1 (en) 2011-12-02 2011-12-02 Lightweight permanent formwork including an external mesh

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES2011/000347 WO2013079731A1 (en) 2011-12-02 2011-12-02 Lightweight permanent formwork including an external mesh

Publications (1)

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WO2013079731A1 true WO2013079731A1 (en) 2013-06-06

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4700523A (en) * 1984-12-28 1987-10-20 Fujikigyo Co., Ltd. Reinforcing frame work for constructing reinforced concrete structure
ES1026405U (en) * 1993-11-26 1994-04-16 Vidal Patus Self-supporting panel.
US5353560A (en) * 1992-06-12 1994-10-11 Heydon Building Systems International, Limited Building structure and method of use
ES2122881A1 (en) * 1995-07-21 1998-12-16 Pedreno Lopez Miguel Improvements to the systems for constructing partition walls, walls and extradoses
EP1146179A2 (en) * 2000-04-10 2001-10-17 Angelo Candiracci Pre-armed formwork building panel
US20080209843A1 (en) * 2007-02-20 2008-09-04 Sure-Way, Llc Rebar Holding and Positioning Apparatus and Method for Reinforcing Concrete Using Rebar
WO2010134093A2 (en) * 2009-05-05 2010-11-25 Fabtech Technologies International Pvt. Ltd. Plastic wall spacer
ES1073323U (en) * 2010-07-09 2010-12-01 Angel Fernandez Fernandez Freestanding permanent formwork

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4700523A (en) * 1984-12-28 1987-10-20 Fujikigyo Co., Ltd. Reinforcing frame work for constructing reinforced concrete structure
US5353560A (en) * 1992-06-12 1994-10-11 Heydon Building Systems International, Limited Building structure and method of use
ES1026405U (en) * 1993-11-26 1994-04-16 Vidal Patus Self-supporting panel.
ES2122881A1 (en) * 1995-07-21 1998-12-16 Pedreno Lopez Miguel Improvements to the systems for constructing partition walls, walls and extradoses
EP1146179A2 (en) * 2000-04-10 2001-10-17 Angelo Candiracci Pre-armed formwork building panel
US20080209843A1 (en) * 2007-02-20 2008-09-04 Sure-Way, Llc Rebar Holding and Positioning Apparatus and Method for Reinforcing Concrete Using Rebar
WO2010134093A2 (en) * 2009-05-05 2010-11-25 Fabtech Technologies International Pvt. Ltd. Plastic wall spacer
ES1073323U (en) * 2010-07-09 2010-12-01 Angel Fernandez Fernandez Freestanding permanent formwork

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