ES2277479A1 - Formwork for prismatic columns, has tubular core with prismatic housing and cylindrical outer surface, covered by outer sheath at its periphery - Google Patents

Formwork for prismatic columns, has tubular core with prismatic housing and cylindrical outer surface, covered by outer sheath at its periphery Download PDF

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Publication number
ES2277479A1
ES2277479A1 ES200400853A ES200400853A ES2277479A1 ES 2277479 A1 ES2277479 A1 ES 2277479A1 ES 200400853 A ES200400853 A ES 200400853A ES 200400853 A ES200400853 A ES 200400853A ES 2277479 A1 ES2277479 A1 ES 2277479A1
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Spain
Prior art keywords
formwork
prismatic
rigid
invention patent
folding
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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
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ES200400853A
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Spanish (es)
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ES2277479B1 (en
Inventor
Jesus Sanchez Reñasco
Jose Maria Sanchez Reñasco
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Individual
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Individual
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Filing date
Publication date
Priority claimed from ES200202498A external-priority patent/ES2208106B1/en
Priority claimed from ES200400446A external-priority patent/ES2270651B1/en
Application filed by Individual filed Critical Individual
Priority to EP04734695A priority Critical patent/EP1719856A1/en
Priority to PCT/ES2004/000235 priority patent/WO2005083199A1/en
Publication of ES2277479A1 publication Critical patent/ES2277479A1/en
Application granted granted Critical
Publication of ES2277479B1 publication Critical patent/ES2277479B1/en
Anticipated expiration legal-status Critical
Withdrawn - After Issue legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
    • E04G13/02—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor
    • E04G13/021—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor for circular columns
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
    • E04G13/02—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor
    • E04G13/023—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor with means for modifying the sectional dimensions

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

Abstract

The formwork has a tubular core (1) consisting of a cylindrical outer surface and an inner prismatic housing (2). The periphery of the core is covered by an outer sheath (4) formed with a slit (8), to facilitate fixing of the sheath to the core. The core is folded by an impermeable inner tubular lining (6), during transportation and storage.

Description

Mejoras introducidas en la patente de invención P 200400446 por: "Encofrado plegable para columnas prismáticas"Improvements introduced in the invention patent P 200400446 by: "Column folding formwork binoculars "

Objeto de la invenciónObject of the invention

La presente invención se refiere a unas mejoras introducidas en el encofrado plegable para columnas prismáticas objeto de la patente de invención P 200400446, encofrado consistente a su vez en un cuerpo tubular exteriormente cilíndrico, determinante de un alojamiento interior prismático, núcleo dotado de un revestimiento interior impermeable y de una envolvente estabilizadora exterior, de alta resistencia mecánica, flexible para permitir el plegado del encofrado cuando éste se encuentra en situación inoperante, es decir durante su almacenaje y transporte.The present invention relates to improvements introduced in the folding formwork for prismatic columns object of the invention patent P 200400446, formwork consisting in turn of an externally cylindrical tubular body, determinant of a prismatic interior housing, core equipped with  a waterproof inner liner and an envelope external stabilizer, high mechanical strength, flexible to allow the folding of the formwork when it is in inoperative situation, that is, during storage and transport.

El objeto de la invención es dotar a dicho encofrado de medios que, en el momento de su utilización, le hagan recuperar con toda exactitud su teórica configuración cilíndrica, perdida durante el almacenaje y transporte del mismo, para que pueda cumplir perfectamente su función como tal encofrado.The object of the invention is to provide said formwork of means that, at the time of its use, make it recover with complete accuracy its theoretical cylindrical configuration, lost during storage and transportation, so that It can perfectly fulfill its function as such formwork.

Antecedentes de la invenciónBackground of the invention

En la patente de invención P 200400446 se describe un encofrado para columnas prismáticas, dotado de un núcleo tubular, determinante de un alojamiento interior prismático, como por ejemplo prismático cuadrangular, prismático hexagonal, etc, y de una superficie exterior cilíndrica, estando el citado núcleo estructurado a base de una pluralidad de piezas ligeras en forma de segmento cilíndrico, unidas entre sí mediante un revestimiento impermeable interior materializado en un tubo determinante de una superficie continua que, convenientemente fijado a las citadas piezas en forma de segmento cilíndrico, permite el plegado del encofrado en situación de almacenaje y transporte. Además dicho encofrado incorpora como envolvente estabilizadora exterior una lámina o malla flexible, de alta resistencia mecánica, de manera que esta envolvente soporta las presiones generadas en el interior hueco del encofrado durante el uso del mismo, pero permite también su plegado cuando se encuentra en situación inoperante.In the invention patent P 200400446 describes a formwork for prismatic columns, equipped with a tubular core, determinant of a prismatic inner housing, such as quadrangular prismatic, hexagonal prismatic, etc, and of a cylindrical outer surface, said core being structured based on a plurality of light pieces in the form of cylindrical segment, joined together by a lining waterproof inside materialized in a determining tube of a continuous surface that, conveniently fixed to those mentioned Cylindrical segment-shaped pieces, allows the folding of the formwork in storage and transport situation. Also said formwork incorporates as an outer stabilizer envelope a flexible sheet or mesh, high mechanical strength, so that this envelope supports the pressures generated inside formwork hollow while using it, but also allows its folding when it is in an inoperative situation.

Esta solución permite reducir de forma muy considerable la ocupación volumétrica del encofrado durante el almacenaje y transporte del mismo, concretamente plegándolo, lo que supone un mayor rendimiento tanto de las zonas de almacenaje como de los vehículos de transporte y facilitando de forma muy considerable su posterior implantación en obra, al carecer de una envolvente exterior semirrígida y desmontable, que requiere de operaciones de montaje, cierre y fijación en obra.This solution allows to reduce very considerable volumetric occupancy of the formwork during storage and transport of the same, specifically folding it, what supposes a greater performance of both the storage areas and of transport vehicles and facilitating very considerable its subsequent implementation in work, lacking a semi-rigid and removable outer shell, which requires assembly, closing and fixing operations on site.

Sin embargo la puesta en práctica de la citada patente de invención ha demostrado que los resultados previsibles desde el punto de vista teórico no se dan con toda exactitud en la práctica, de manera que la permanencia durante un periodo de tiempo más o menos largo del encofrado en situación de plegado, hace que a la hora de su implantación en obra quede una deformación residual, que impide que el encofrado adopte la necesaria configuración exterior cilíndrica, y consecuentemente una perfecta configuración interior prismática, lo que dificulta el posicionamiento en obra de dicho encofrado antes de verter hormigón en el seno del mismo, concretamente durante las maniobras de aplomo y sustentación lateral del encofrado con los clásicos soportes o puntales laterales y oblicuos, lo que en la práctica trae como resultado que la columna pueda quedar ligeramente girada con respecto a su posición teórica correcta.However, the implementation of the aforementioned invention patent has shown that predictable results from the theoretical point of view they do not occur exactly in the practice, so that permanence for a period of time more or less length of the formwork when folded, it makes the time of its implementation on site is a residual deformation, which prevents the formwork from adopting the necessary configuration cylindrical exterior, and consequently a perfect configuration Prismatic interior, which makes positioning on site difficult said formwork before pouring concrete into it, specifically during poise and lift maneuvers side formwork with the classic supports or side struts and obliques, which in practice results in the column may be slightly rotated with respect to its theoretical position correct.

Descripción de la invenciónDescription of the invention

Las mejoras objeto del presente certificado de adición tienen como finalidad específica evitar el problema anteriormente expuesto, permitiendo que el encofrado adopte una configuración exterior perfectamente cilíndrica en el momento de su montaje, de manera que este último pueda efectuarse de forma absolutamente correcta.The improvements object of this certificate of addition are specifically intended to avoid the problem previously exposed, allowing the formwork to adopt a perfectly cylindrical exterior configuration at the time of its assembly, so that the latter can be done so absolutely correct.

Para ello y de forma más concreta dichas mejoras consisten en dotar al encofrado propiamente dicho de dos o más casquillos de diámetro interno coincidente con el diámetro externo del encofrado, de reducida cota axial, que durante las fases de almacenaje y transporte se mantienen independizados del encofrado propiamente dicho, constituyendo objetos con escasa ocupación volumétrica, que pueden ser fácilmente implantados sobre el encofrado en el momento del montaje de este último, concretamente dos ellos en las zonas extremas de dicho encofrado y uno o más en sus zonas intermedias, en función de la longitud del encofrado, y que en cualquier caso van a hacer que este último adopte la pretendida configuración cilíndrica necesaria para un correcto montaje del mismo.To do this and more specifically these improvements they consist of providing the formwork itself with two or more internal diameter bushings coinciding with the external diameter of the formwork, of reduced axial dimension, that during the phases of storage and transport remain independent of the formwork proper, constituting objects with low occupancy volumetric, which can be easily implanted on the formwork at the time of assembly of the latter, specifically two of them in the extreme areas of said formwork and one or more in its intermediate zones, depending on the length of the formwork, and that in any case they will make the latter adopt the intended cylindrical configuration necessary for correct assembly of it.

Los citados casquillos pueden estar obtenidos a partir de cualquier material rígido o semirrígido, configurando un anillo cerrado, o bien pueden materializarse en un aro abierto, por ejemplo de hierro otro material similar, con cualquier dispositivo de cierre convencional, de manera que en este segundo caso los casquillos resultan reutilizables indistintamente, estando en poder del constructor, y además dicho cierre puede ser regulable para que un mismo aro sea válido para encofrados de diferentes diámetros.The aforementioned bushings may be obtained at from any rigid or semi-rigid material, configuring a closed ring, or they can materialize in an open ring, by example of iron other similar material, with any device of conventional closure, so that in this second case the bushings are reusable interchangeably, being in power of the builder, and also said closure can be adjustable so that The same ring is valid for formwork of different diameters.

Complementariamente los citados casquillos pueden estar dotados de soportes que faciliten la fijación de los puntales oblicuos que estabilizan el encofrado en la posición vertical correspondiente al montaje del mismo.In addition, the aforementioned bushings they can be provided with supports that facilitate the fixation of the oblique struts that stabilize the formwork in position vertical corresponding to its assembly.

Descripción de los dibujosDescription of the drawings

Para complementar la descripción que se está realizando y con objeto de ayudar a una mejor comprensión de las características del invento, de acuerdo con un ejemplo preferente de realización práctica del mismo, se acompaña como parte integrante de dicha descripción, un juego de dibujos en donde con carácter ilustrativo y no limitativo, se ha representado lo siguiente:To complement the description that is being performing and in order to help a better understanding of the characteristics of the invention, according to a preferred example of practical realization of it, is accompanied as part member of that description, a set of drawings where with illustrative and non-limiting nature, what has been represented next:

La figura 1.- Muestra una vista en perspectiva de un encofrado plegable para columnas prismáticas al que son aplicables las mejoras del presente certificado de adición, encofrado que aparece en situación de plegado, es decir en situación de almacenaje y transporte.Figure 1.- Shows a perspective view of a folding formwork for prismatic columns to which they are the improvements to this certificate of addition apply, formwork that appears in a folded situation, that is to say in storage and transport situation.

La figura 2.- Muestra, también según una vista en perspectiva, el encofrado de la figura anterior, en posición de uso y al que aparecen adaptados una pareja de casquillos extremos sobre los que se centran las mejoras de la invención.Figure 2.- Shows, also according to a view in perspective, the formwork of the previous figure, in the position of use and to which a pair of end caps are adapted on which the improvements of the invention are centered.

Realización preferente de la invenciónPreferred Embodiment of the Invention

A la vista. de las figuras reseñadas, y en especial de la figura 1, puede observarse cómo las mejoras de la invención son aplicables a un encofrado constituido a partir de un cuerpo tubular (1) en el que se define interiormente un alojamiento prismático (2), en el ejemplo de realización práctica mostrado en las figuras prismático-cuadrangular, con chaflanes (3) en sus aristas, pero que puede adoptar cualquier otra configuración prismático-poligonal, materializándose dicho núcleo (1) en una pluralidad de segmentos cilíndricos (4), de poliuretano expandido u otro material ligero similar, con un revestimiento interior (5) estanco, concretamente un cuerpo tubular de naturaleza plástica, que actúa como bisagra para los elementos cilíndricos (5), tanto en el caso de existir los citados chaflanes (3) del ejemplo de realización de las figuras como cuando dichos chaflanes no existen, complementándose esta estructura con una envolvente exterior (6) materializada en una lámina o malla, flexible y de alta resistencia mecánica, arrollada sobre el resto del núcleo tubular (1) y fijada al mismo mediante adhesivo o por cualquier otro medio apropiado, de manera que esta envolvente (6), además de estabilizar mecánicamente el núcleo tubular (1), permite el plegamiento de dicho núcleo sobre sí mismo, tal como muestra la figura 1.In sight. of the figures outlined, and in special figure 1, it can be seen how the improvements of the invention are applicable to a formwork constituted from a tubular body (1) in which a housing is defined internally prismatic (2), in the example of practical embodiment shown in Prismatic-quadrangular figures, with chamfers (3) in its edges, but that can be adopted by any other prismatic-polygonal configuration, materializing said core (1) in a plurality of cylindrical segments (4), of expanded polyurethane or other similar lightweight material, with a watertight inner lining (5), specifically a tubular body plastic nature, which acts as a hinge for the elements cylindrical (5), both in the case of said chamfers (3) of the embodiment of the figures as when said chamfers do not exist, complementing this structure with a outer envelope (6) materialized in a sheet or mesh, flexible and high mechanical resistance, rolled over the rest of the tubular core (1) and fixed thereto by adhesive or by any other appropriate means, so that this envelope (6), In addition to mechanically stabilizing the tubular core (1), it allows the folding of said core on itself, as the Figure 1.

Pues bien, de acuerdo con las mejoras de la invención la estructura del encofrado propiamente dicho se complementa con al menos una pareja de casquillos (7), rígidos o semirrígidos, de diámetro interno coincidente con el diámetro externo del núcleo tubular (1), destinados a acoplarse exteriormente a este último al menos en las zonas extremas del mismo, pudiendo existir otros casquillos intermedios cuando la longitud u otras características del encofrado así lo requieran.Well, according to the improvements of the invention the formwork structure itself is complements with at least one pair of bushings (7), rigid or semi-rigid, internal diameter coinciding with the diameter external tubular core (1), intended for external coupling to the latter at least in its extreme areas, being able to there are other intermediate bushings when the length or other formwork characteristics so require.

La configuración cilíndrica de estos casquillos (7) y su carácter rígido o semirrígido, hacen que al ser acoplados al encofrado (1), éste recobre su perfecta configuración cilíndrica exterior, para un correcto montaje del mismo sobre su lugar de ubicación, montaje que se verá favorecido por la existencia sobre la envolvente exterior (6) de una cinta longitudinal (8), sobre una de sus generatrices, que identifique por ejemplo una de las aristas de la columna a obtener.The cylindrical configuration of these bushings (7) and its rigid or semi-rigid character, make when coupled to the formwork (1), it recovers its perfect cylindrical configuration outside, for a correct assembly of the same on its place of location, assembly that will be favored by the existence on the outer envelope (6) of a longitudinal belt (8), on a of its generatrices, which identifies for example one of the edges of the column to obtain.

Aunque en el ejemplo de realización práctica de las figuras se han representado casquillos cerrados, evidentemente y como ya se ha dicho con anterioridad, puede tratarse de aros abiertos, como por ejemplo aros de hierro dotados de un cierre regulable, lo que además de facilitar notablemente el montaje de los mismos sobre el encofrado propiamente dicho, permite su reutilización de forma prácticamente indefinida, haciendo innecesario que junto con el encofrado sean suministrados al consumidor los casquillos estabilizadores objeto de la invención, puesto que el propio constructor dispondrá de casos anteriores de los citados aros abiertos con cierre regulable.Although in the example of practical realization of the figures have been represented closed caps, obviously and as it has been said before, it can be hoops open, such as iron hoops equipped with a closure adjustable, which in addition to significantly facilitating the assembly of the same on the formwork itself, allows its reuse virtually indefinitely, making unnecessary that together with the formwork be supplied to the consumer stabilizer caps object of the invention, since the builder himself will have previous cases of the aforementioned open rings with adjustable closure.

Claims (4)

1. Mejoras introducidas en la patente de invención P 200400446 por "Encofrado plegable para columnas prismáticas", que teniendo como finalidad eliminar la deformación residual generada en dichos encofrados por el tiempo de permanencia en situación de plegado de la mitad de sus segmentos cilíndricos, con sus correspondientes envolventes interior y exterior, con respecto a la otra mitad, se caracterizan porque consisten en al menos una pareja de casquillos rígidos o semirrígidos físicamente independientes del encofrado propiamente dicho, con un diámetro interno coincidente con el diámetro externo de este último, en situación de montaje para el mismo, de manera que dichos casquillos fuerzan al encofrado a la recuperación de su configuración exterior cilíndrica en el momento de su montaje.1. Improvements introduced in the invention patent P 200400446 for "Folding formwork for prismatic columns", whose purpose is to eliminate the residual deformation generated in said formwork by the time of permanence in the folded situation of half of its cylindrical segments, with their corresponding inner and outer envelopes, with respect to the other half, are characterized in that they consist of at least one pair of rigid or semi-rigid bushings physically independent of the formwork itself, with an internal diameter coinciding with the external diameter of the latter, in situation for mounting it, so that said bushings force the formwork to recover its cylindrical exterior configuration at the time of assembly. 2. Mejoras introducidas en la patente de invención P 200400446 por "Encofrado plegable para columnas prismáticas", según reivindicación 1ª, caracterizadas porque con cada encofrado colaboran al menos dos casquillos rígidos o semirrígidos destinados a ubicarse cerca de los extremos del mismo, y opcionalmente casquillos intermedios, adecuadamente distribuidos, en función de la altura y diámetro de la columna a obtener.2. Improvements introduced in the invention patent P 200400446 for "Folding formwork for prismatic columns", according to claim 1, characterized in that at least two rigid or semi-rigid bushes collaborate with each formwork intended to be located near the ends thereof, and optionally bushes intermediate, properly distributed, depending on the height and diameter of the column to be obtained. 3. Mejoras introducidas en la patente de invención P 200400446 por "Encofrado plegable para columnas prismáticas", según reivindicaciones anteriores, caracterizadas porque cada uno de dichos casquillos configura un anillo cerrado.3. Improvements introduced in the invention patent P 200400446 for "Folding formwork for prismatic columns", according to previous claims, characterized in that each of said bushings forms a closed ring. 4. Mejoras introducidas en la patente de invención P 200400446 por "Encofrado plegable para columnas prismáticas", según reivindicaciones 1ª y 2ª, caracterizadas porque cada casquillo configura un aro abierto, preferentemente de hierro, con un cierre a su vez preferentemente regulable.4. Improvements introduced in the invention patent P 200400446 for "Folding formwork for prismatic columns", according to claims 1 and 2, characterized in that each bushing configures an open ring, preferably of iron, with a preferably adjustable closure.
ES200400853A 2002-10-30 2004-04-06 IMPROVEMENTS INTRODUCED IN THE PATENT OF INVENTION P2000400446 BY "FOLDING FORMWORK PASSES PRISMATIC COLUMNS". Withdrawn - After Issue ES2277479B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP04734695A EP1719856A1 (en) 2004-02-24 2004-05-25 Formwork for prismatic columns
PCT/ES2004/000235 WO2005083199A1 (en) 2004-02-24 2004-05-25 Formwork for prismatic columns

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200202498A ES2208106B1 (en) 2002-10-30 2002-10-30 MACHINE FOR THE MANUFACTURE OF TUBULAR BODIES.
ES200400446A ES2270651B1 (en) 2004-02-25 2004-02-25 FOLDING FORMWORK FOR PRISMATIC COLUMNS.

Publications (2)

Publication Number Publication Date
ES2277479A1 true ES2277479A1 (en) 2007-07-01
ES2277479B1 ES2277479B1 (en) 2008-05-16

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ES200400853A Withdrawn - After Issue ES2277479B1 (en) 2002-10-30 2004-04-06 IMPROVEMENTS INTRODUCED IN THE PATENT OF INVENTION P2000400446 BY "FOLDING FORMWORK PASSES PRISMATIC COLUMNS".

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB805437A (en) * 1956-07-31 1958-12-03 Sonoco Products Co Double section paper tube form for concrete columns
US3990672A (en) * 1975-01-27 1976-11-09 C. O. Buchanan Concrete column form
US4749165A (en) * 1987-04-09 1988-06-07 Thomas Moraca Supporting device for multi-floor column forms
US5328142A (en) * 1992-07-17 1994-07-12 Sonoco Products Company Concrete column forming tube
ES2113777A1 (en) * 1994-03-29 1998-05-01 Ruiz Navarro Dolores G Improvements to recoverable formwork (shuttering) for the formation of polygonal pillars
ES2168049A1 (en) * 2000-01-04 2002-05-16 Salinas Jose Manuel Valero Formwork for cylindrical columns using narrow laminae of plastified wood or rigid plastic

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB805437A (en) * 1956-07-31 1958-12-03 Sonoco Products Co Double section paper tube form for concrete columns
US3990672A (en) * 1975-01-27 1976-11-09 C. O. Buchanan Concrete column form
US4749165A (en) * 1987-04-09 1988-06-07 Thomas Moraca Supporting device for multi-floor column forms
US5328142A (en) * 1992-07-17 1994-07-12 Sonoco Products Company Concrete column forming tube
ES2113777A1 (en) * 1994-03-29 1998-05-01 Ruiz Navarro Dolores G Improvements to recoverable formwork (shuttering) for the formation of polygonal pillars
ES2168049A1 (en) * 2000-01-04 2002-05-16 Salinas Jose Manuel Valero Formwork for cylindrical columns using narrow laminae of plastified wood or rigid plastic

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