EP1847665A1 - Aluminium beam for flagstone casing or similar - Google Patents

Aluminium beam for flagstone casing or similar Download PDF

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Publication number
EP1847665A1
EP1847665A1 EP07354023A EP07354023A EP1847665A1 EP 1847665 A1 EP1847665 A1 EP 1847665A1 EP 07354023 A EP07354023 A EP 07354023A EP 07354023 A EP07354023 A EP 07354023A EP 1847665 A1 EP1847665 A1 EP 1847665A1
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EP
European Patent Office
Prior art keywords
paint
aluminum
product
beam according
melting temperature
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
Application number
EP07354023A
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German (de)
French (fr)
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EP1847665B1 (en
Inventor
Edmond Souvignet
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Alphi SAS
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Alphi SAS
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    • 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
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
    • E04G11/48—Supporting structures for shutterings or frames for floors or roofs
    • E04G11/50—Girders, beams, or the like as supporting members for forms
    • 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
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs

Definitions

  • the invention relates to an aluminum beam for slab formwork support structures or the like.
  • a support structure of a form is generally used for the manufacture of such slabs.
  • Such a support structure is conventionally composed of a set of primary beams supported by a plurality of vertical struts and supporting two by two a plurality of secondary beams.
  • the primary and secondary beams of such a support structure must meet many criteria in terms of safety, maneuverability and robustness.
  • the beams are in particular made from light metal profiles, aluminum type or the like, in particular to meet the criterion of strength and lightness.
  • the invention aims to overcome the aforementioned drawbacks and is intended to provide an aluminum beam that is robust, lightweight and deter potential thieves steal by preventing the recycling of the beam.
  • the object of the invention is characterized in that the beam comprises at least one strip of paint comprising a solid or liquid product mixed with the paint, said product having a melting temperature equal to or greater than the melting temperature of the aluminum.
  • said product is in the form of a metal powder.
  • said product is in the form of mineral particles or of composite material.
  • Such a product mixed with the paint serves as anti-theft protection, in particular by deteriorating the melt of the aluminum obtained after remelting.
  • the aluminum thus obtained is then downgraded and its resale is difficult or impossible because it is no longer recyclable effectively.
  • the aluminum beam 10 is more particularly intended for the formation of a support structure for a slab formwork or the like.
  • the aluminum beam 10 is an exemplary embodiment of a primary beam of such a support structure.
  • the aluminum beam 10 is an exemplary embodiment of a secondary beam of such a support structure.
  • the beam 10 is shaped according to an aluminum honeycomb profile having a lower recess 12, preferably of substantially circular section and flared upwards, and an upper recess 13, serving as housing for a board of wood participating in the formwork.
  • the upper cell 13 has two upper flanges 14 extending horizontally.
  • the profile 11 of the beam 10 also comprises a median cell 15 serving as stiffening spacer between the lower cell 12 and the upper cell 13.
  • the aluminum beam 10 advantageously comprises two strips of paint 16, composed of a paint, preferably resistant to high temperatures and having a melting point, preferably slightly less than the melting temperature of the aluminum, and a solid or liquid product mixed with the paint, whose melting temperature is equal to or greater than the melting temperature of the aluminum.
  • the product melts with the aluminum during its remelting.
  • the melting temperature of the product is higher, preferably much higher, than the melting temperature of aluminum, the product does not melt with aluminum and mixes with the aluminum bath and the paint, obtained after recasting. In any case, this results in the deterioration and downgrading of the quality of the aluminum obtained after recasting, which makes it very difficult to resell, because potential resellers can no longer recycle the aluminum obtained after recasting.
  • the product mixed with the paint may be a solid product in the form of a metal powder, or in the form of filings.
  • the solid product is, for example, an iron powder, whose melting point is of the order of 1500 ° C., that is to say, much higher than the melting temperature of aluminum, of the order of 700 ° C. at 800 ° C.
  • the solid product mixed with the paint may be in the form of inorganic or organic particles, particles of composite material, a material selected from silica, glass, limestone, or a mixture of these materials. , whose melting temperatures are higher than the melting point of aluminum.
  • the mineral particles are glass beads or glass fibers, having a melting point of about 1000 ° C. to 1500 ° C.
  • the paint strips 16 are applied, preferably symmetrically with respect to the longitudinal axis of the beam 10, between the upper flanges. 14 of the beam 10 and lugs 17 protruding from the central cavity 15 and delimiting an area of width I, to locate the application of the paint strip 16 ( Figure 1). Moreover, as shown in FIG. 2, the paint strips 16 extend longitudinally, preferably over the entire length L of the aluminum beam 10.
  • each strip of paint 16 has a width I of the order of 20 mm to 30 mm and a thickness e, preferably of the order of 1 mm to 2 mm (FIG. 1).
  • the quantity of product must be sufficient to destroy the aluminum bath obtained after recasting.
  • the necessary amount of product is at least of the order of 2% to 3% of the total weight of the aluminum beam 10.
  • the aluminum beam 10 differs from the beam shown in Figures 1 and 2 in particular by the shape of the aluminum profile serving as a frame.
  • the beam 10 is shaped according to a honeycomb section 18, generally of substantially Y-shaped, comprising in particular an upper cell 19, of U-section, extended by two striated horizontal flanges extending perpendicular to the end of the vertical branches of the U .
  • the beam 10 also comprises two strips of paint 16, as previously described, composed of a paint and a solid or liquid product mixed with the paint, with a melting temperature equal to or greater than the melting temperature of the aluminum.
  • the product may be in the form of a metal powder, for example iron powder, or in the form of mineral particles or composite material, for example glass fibers or glass beads, or organic particles.
  • the paint strips 16 are preferably applied symmetrically to each vertical branch of the upper cavity 19 of the profile 18 and between the horizontal flanges 20 and lugs 21 projecting from the projections. vertical branches of the upper cavity 19 of the profile 18.
  • the paint strips 16 have a thickness e, preferably of the order of 1 mm to 2 mm and a width I, preferably of the order of 20mm to 30mm.
  • the paint strips 16 extend longitudinally over the entire length L of the beam 10.
  • the product is not filterable, otherwise to deteriorate the filter, and thus serves as antitheft protection, because the aluminum obtained after recasting is completely downgraded and can not be resold and recycled with great difficulty. Such a recycling operation would be too expensive to be of any interest.
  • the product mixed with the paint of the paint strips 16 applied to the beam 10 may be any type of solid or liquid product, as long as its melting temperature is equal to or greater than the melting temperature of the aluminum.
  • the shape of the beams 10 may be different, the number, the position and the dimensions of the paint strips 16 applied to the beam 10 may be different, as long as the amount of solid or liquid product mixed with the paint is sufficient to destroy the bath melting obtained and to impede quality recycling, and the resale of the aluminum obtained after recasting.
  • the paint strips 16 may have a different color depending on the size, shape and type of the aluminum beams 10.

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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)
  • Paints Or Removers (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

The beam (10) has paint strips (16) with a liquid or solid product mixed with a paint. The product has a melting temperature equal to or higher than a melting temperature of aluminum constituting the beam. Quantity of the mixed product ranges between 2-3 percentages of total weight of the beam for reducing melting of the aluminum obtained after re-melting of the beam. The product is in the form of metal powder e.g. iron powder, mineral particles e.g. glass fibers or beads, or is made of organic/composite material.

Description

Domaine technique de l'inventionTechnical field of the invention

L'invention concerne une poutre en aluminium pour des structures de soutien de coffrage de dalle ou analogue.The invention relates to an aluminum beam for slab formwork support structures or the like.

État de la techniqueState of the art

Dans le domaine du bâtiment, plus particulièrement des techniques de construction de dalles de béton ou analogue, une structure de soutien d'un coffrage est généralement utilisée pour la fabrication de telles dalles. Une telle structure de soutien est classiquement composée d'un ensemble de poutres primaires supportées par une pluralité d'étais verticaux et supportant deux à deux une pluralité de poutres secondaires.In the field of building, particularly concrete slab construction techniques or the like, a support structure of a form is generally used for the manufacture of such slabs. Such a support structure is conventionally composed of a set of primary beams supported by a plurality of vertical struts and supporting two by two a plurality of secondary beams.

Les poutres primaires et secondaires d'une telle structure de soutien doivent notamment satisfaire à de nombreux critères en termes de sécurité, de maniabilité et de robustesse. Les poutres sont notamment réalisées à partir de profilés en métal léger, du type aluminium ou analogue, afin notamment de satisfaire au critère de robustesse et de légèreté.The primary and secondary beams of such a support structure must meet many criteria in terms of safety, maneuverability and robustness. The beams are in particular made from light metal profiles, aluminum type or the like, in particular to meet the criterion of strength and lightness.

Cependant, il est courant de voir que de telles poutres sont régulièrement volées sur les chantiers, qui ne sont pas suffisamment sécurisés, afin d'être revendues et recyclées par refonte de l'aluminium.However, it is common to see that such beams are regularly stolen on construction sites, which are not sufficiently secure, to be resold and recycled by remelting aluminum.

Objet de l'inventionObject of the invention

L'invention a pour but de remédier aux inconvénients précités et a pour objet la réalisation d'une poutre en aluminium qui soit robuste, légère et qui permette de dissuader des voleurs potentiels de la voler en empêchant le recyclage de la poutre.The invention aims to overcome the aforementioned drawbacks and is intended to provide an aluminum beam that is robust, lightweight and deter potential thieves steal by preventing the recycling of the beam.

L'objet de l'invention est caractérisé en ce que la poutre comporte au moins une bande de peinture comprenant un produit solide ou liquide mélangé à la peinture, ledit produit ayant une température de fusion égale ou supérieure à la température de fusion de l'aluminium.The object of the invention is characterized in that the beam comprises at least one strip of paint comprising a solid or liquid product mixed with the paint, said product having a melting temperature equal to or greater than the melting temperature of the aluminum.

Selon un mode de réalisation particulier, ledit produit est sous forme d'une poudre métallique.According to a particular embodiment, said product is in the form of a metal powder.

Selon une variante de réalisation de l'invention, ledit produit est sous forme de particules minérales ou en matériau composite.According to an alternative embodiment of the invention, said product is in the form of mineral particles or of composite material.

Un tel produit mélangé à la peinture sert de protection antivol, notamment en détériorant le bain de fusion de l'aluminium obtenu après sa refonte. L'aluminium ainsi obtenu est alors déclassé et sa revente est difficile voir impossible, car il n'est plus recyclable efficacement.Such a product mixed with the paint serves as anti-theft protection, in particular by deteriorating the melt of the aluminum obtained after remelting. The aluminum thus obtained is then downgraded and its resale is difficult or impossible because it is no longer recyclable effectively.

Description sommaire des dessinsBrief description of the drawings

D'autres avantages et caractéristiques ressortiront plus clairement de la description qui va suivre de modes particuliers de réalisation de l'invention donnés à titre d'exemples non limitatifs et représentés aux dessins annexés, dans lesquels :

  • Les figures 1 et 2 représentent, respectivement, une vue de face et une vue en perspective d'un mode particulier de réalisation d'une poutre en aluminium selon l'invention.
  • Les figures 3 et 4 représentent, respectivement, une vue de face et une vue en perspective d'un autre mode particulier de réalisation d'une poutre en aluminium selon l'invention.
Other advantages and features will emerge more clearly from the following description of particular embodiments of the invention given by way of non-limiting example and represented in the accompanying drawings, in which:
  • Figures 1 and 2 show, respectively, a front view and a perspective view of a particular embodiment of an aluminum beam according to the invention.
  • Figures 3 and 4 show, respectively, a front view and a perspective view of another particular embodiment of an aluminum beam according to the invention.

Description de modes particuliers de réalisationDescription of particular embodiments

En référence aux figures 1 à 4, la poutre en aluminium 10 selon l'invention est plus particulièrement destinée à la formation d'une structure de soutien d'un coffrage de dalle ou analogue. Sur les figures 1 et 2, la poutre en aluminium 10 est un exemple de réalisation d'une poutre primaire d'une telle structure de soutien. Sur les figures 3 et 4, la poutre en aluminium 10 est un exemple de réalisation d'une poutre secondaire d'une telle structure de soutien.With reference to FIGS. 1 to 4, the aluminum beam 10 according to the invention is more particularly intended for the formation of a support structure for a slab formwork or the like. In Figures 1 and 2, the aluminum beam 10 is an exemplary embodiment of a primary beam of such a support structure. In Figures 3 and 4, the aluminum beam 10 is an exemplary embodiment of a secondary beam of such a support structure.

Dans le mode particulier de réalisation des figures 1 et 2, la poutre 10 est conformée selon un profilé alvéolé en aluminium présentant une alvéole inférieure 12, de préférence de section sensiblement circulaire et évasée vers le haut, et une alvéole supérieure 13, servant de logement pour une planche de bois participant au coffrage. L'alvéole supérieure 13 comporte deux rebords supérieurs 14 s'étendant à l'horizontale. Le profilé 11 de la poutre 10 comporte également une alvéole médiane 15, servant d'entretoise de rigidification entre l'alvéole inférieure 12 et l'alvéole supérieure 13.In the particular embodiment of Figures 1 and 2, the beam 10 is shaped according to an aluminum honeycomb profile having a lower recess 12, preferably of substantially circular section and flared upwards, and an upper recess 13, serving as housing for a board of wood participating in the formwork. The upper cell 13 has two upper flanges 14 extending horizontally. The profile 11 of the beam 10 also comprises a median cell 15 serving as stiffening spacer between the lower cell 12 and the upper cell 13.

La poutre en aluminium 10 comporte avantageusement deux bandes de peinture 16, composée d'une peinture, de préférence, résistante à des hautes températures et ayant une température de fusion, de préférence, légèrement inférieure à la température de fusion de l'aluminium, et d'un produit solide ou liquide mélangé à la peinture, dont la température de fusion est égale ou supérieure à la température de fusion de l'aluminium.The aluminum beam 10 advantageously comprises two strips of paint 16, composed of a paint, preferably resistant to high temperatures and having a melting point, preferably slightly less than the melting temperature of the aluminum, and a solid or liquid product mixed with the paint, whose melting temperature is equal to or greater than the melting temperature of the aluminum.

Dans le cas où la température de fusion du produit mélangé à la peinture est sensiblement égale à la température de fusion de l'aluminium, le produit fond avec l'aluminium pendant sa refonte. Dans le cas où la température de fusion du produit est supérieure, de préférence très supérieure, à la température de fusion de l'aluminium, le produit ne fond pas avec l'aluminium et se mélange au bain d'aluminium et à la peinture, obtenus après refonte. Dans tous les cas, il en résulte la détérioration et le déclassement de la qualité de l'aluminium obtenu après refonte, qui le rend très difficile à revendre, car les revendeurs potentiels ne peuvent plus recycler l'aluminium obtenu après refonte.In the case where the melting temperature of the product mixed with the paint is substantially equal to the melting temperature of the aluminum, the product melts with the aluminum during its remelting. In the case where the melting temperature of the product is higher, preferably much higher, than the melting temperature of aluminum, the product does not melt with aluminum and mixes with the aluminum bath and the paint, obtained after recasting. In any case, this results in the deterioration and downgrading of the quality of the aluminum obtained after recasting, which makes it very difficult to resell, because potential resellers can no longer recycle the aluminum obtained after recasting.

À titre d'exemple, le produit mélangé à la peinture peut être un produit solide sous la forme d'une poudre métallique, ou sous la forme de limailles. Le produit solide est, par exemple, une poudre de fer, dont la température de fusion est de l'ordre de 1500°C, à savoir très supérieure à la température de fusion de l'aluminium, de l'ordre de 700°C à 800°C.By way of example, the product mixed with the paint may be a solid product in the form of a metal powder, or in the form of filings. The solid product is, for example, an iron powder, whose melting point is of the order of 1500 ° C., that is to say, much higher than the melting temperature of aluminum, of the order of 700 ° C. at 800 ° C.

Dans une variante de réalisation, le produit solide mélangé à la peinture peut être sous la forme de particules minérales ou organiques, de particules en matériau composite, en une matière choisie parmi la silice, le verre, le calcaire, ou un mélange de ces matières, dont les températures de fusion sont supérieures à la température de fusion de l'aluminium. À titre d'exemple, les particules minérales sont des billes de verre ou des fibres de verre, ayant une température de fusion de l'ordre de 1000°C à 1500°C.In an alternative embodiment, the solid product mixed with the paint may be in the form of inorganic or organic particles, particles of composite material, a material selected from silica, glass, limestone, or a mixture of these materials. , whose melting temperatures are higher than the melting point of aluminum. By way of example, the mineral particles are glass beads or glass fibers, having a melting point of about 1000 ° C. to 1500 ° C.

Dans le mode particulier de réalisation représenté sur les figures 1 et 2, les bandes de peinture 16 sont appliquées, de préférence de façon symétrique par rapport à l'axe longitudinal de la poutre 10, entre les rebords supérieurs 14 de la poutre 10 et des ergots 17, faisant saillie de l'alvéole médiane 15 et délimitant une zone de largeur I, pour localiser l'application de la bande de peinture 16 (figure 1). Par ailleurs, comme représenté sur la figure 2, les bandes de peinture 16 s'étendent longitudinalement, de préférence, sur toute la longueur L de la poutre en aluminium 10.In the particular embodiment shown in FIGS. 1 and 2, the paint strips 16 are applied, preferably symmetrically with respect to the longitudinal axis of the beam 10, between the upper flanges. 14 of the beam 10 and lugs 17 protruding from the central cavity 15 and delimiting an area of width I, to locate the application of the paint strip 16 (Figure 1). Moreover, as shown in FIG. 2, the paint strips 16 extend longitudinally, preferably over the entire length L of the aluminum beam 10.

A titre d'exemple, chaque bande de peinture 16 a une largeur I de l'ordre de 20mm à 30mm et une épaisseur e, de préférence, de l'ordre de 1 mm à 2mm (figure 1). Quel que soit le produit solide ou liquide mélangé à la peinture, la quantité de produit doit être suffisante pour détruire le bain d'aluminium obtenu après refonte. La quantité nécessaire de produit est au minimum de l'ordre de 2% à 3% du poids total de la poutre en aluminium 10.By way of example, each strip of paint 16 has a width I of the order of 20 mm to 30 mm and a thickness e, preferably of the order of 1 mm to 2 mm (FIG. 1). Whatever the solid or liquid product mixed with the paint, the quantity of product must be sufficient to destroy the aluminum bath obtained after recasting. The necessary amount of product is at least of the order of 2% to 3% of the total weight of the aluminum beam 10.

Dans la variante de réalisation représentée sur les figures 3 et 4, la poutre en aluminium 10 se distingue de la poutre représentée sur les figures 1 et 2 notamment par la forme du profilé en aluminium lui servant d'ossature. La poutre 10 est conformée selon un profilé alvéolé 18, de forme générale sensiblement en Y, comprenant notamment une alvéole supérieure 19, de section en U, prolongée par deux rebords horizontaux 20 striés s'étendant perpendiculairement à l'extrémité des branches verticales du U.In the embodiment shown in Figures 3 and 4, the aluminum beam 10 differs from the beam shown in Figures 1 and 2 in particular by the shape of the aluminum profile serving as a frame. The beam 10 is shaped according to a honeycomb section 18, generally of substantially Y-shaped, comprising in particular an upper cell 19, of U-section, extended by two striated horizontal flanges extending perpendicular to the end of the vertical branches of the U .

La poutre 10 comporte également deux bandes de peinture 16, comme décrites précédemment, composées d'une peinture et d'un produit solide ou liquide mélangé à la peinture, avec une température de fusion égale ou supérieure à la température de fusion de l'aluminium. Le produit peut être sous la forme d'une poudre métallique, par exemple de la poudre de fer, ou sous la forme de particules minérales ou en matériau composite, par exemple des fibres de verre ou des billes de verre, ou des particules organiques.The beam 10 also comprises two strips of paint 16, as previously described, composed of a paint and a solid or liquid product mixed with the paint, with a melting temperature equal to or greater than the melting temperature of the aluminum. . The product may be in the form of a metal powder, for example iron powder, or in the form of mineral particles or composite material, for example glass fibers or glass beads, or organic particles.

Dans le mode particulier de réalisation représenté sur la figure 3, les bandes de peinture 16 sont appliquées, de préférence, symétriquement sur chaque branche verticale de l'alvéole supérieure 19 du profilé 18 et entre les rebords horizontaux 20 et des ergots 21 faisant saillie des branches verticales de l'alvéole supérieure 19 du profilé 18. Comme précédemment, les bandes de peinture 16 ont une épaisseur e, de préférence, de l'ordre de 1 mm à 2mm et une largeur I, de préférence, de l'ordre de 20mm à 30mm. Comme représenté sur la figure 4, les bandes de peinture 16 s'étendent longitudinalement sur toute la longueur L de la poutre 10.In the particular embodiment shown in FIG. 3, the paint strips 16 are preferably applied symmetrically to each vertical branch of the upper cavity 19 of the profile 18 and between the horizontal flanges 20 and lugs 21 projecting from the projections. vertical branches of the upper cavity 19 of the profile 18. As previously, the paint strips 16 have a thickness e, preferably of the order of 1 mm to 2 mm and a width I, preferably of the order of 20mm to 30mm. As shown in FIG. 4, the paint strips 16 extend longitudinally over the entire length L of the beam 10.

Un tel produit solide ou liquide comme décrit ci-dessus, incorporé à la peinture des bandes de peinture 16 appliquées sur une poutre 10 en aluminium selon l'invention, permet donc de détériorer le bain de fusion obtenu par refonte de l'aluminium. Le produit n'est pas filtrable, sinon à détériorer le filtre, et sert donc de protection antivol, car l'aluminium obtenu après refonte est complètement déclassé et ne peut être revendu et recyclé que très difficilement. Une telle opération de recyclage serait d'ailleurs trop onéreuse pour présenter un intérêt quelconque.Such a solid or liquid product as described above, incorporated in the paint of the paint strips 16 applied to an aluminum beam 10 according to the invention, thus makes it possible to deteriorate the melt obtained by remelting the aluminum. The product is not filterable, otherwise to deteriorate the filter, and thus serves as antitheft protection, because the aluminum obtained after recasting is completely downgraded and can not be resold and recycled with great difficulty. Such a recycling operation would be too expensive to be of any interest.

L'invention n'est pas limitée aux différents modes de réalisation décrits ci-dessus. Le produit mélangé à la peinture des bandes de peinture 16 appliquées sur la poutre 10 peut être tout type de produit solide ou liquide, tant que sa température de fusion est égale ou supérieure à la température de fusion de l'aluminium.The invention is not limited to the various embodiments described above. The product mixed with the paint of the paint strips 16 applied to the beam 10 may be any type of solid or liquid product, as long as its melting temperature is equal to or greater than the melting temperature of the aluminum.

La forme des poutres 10 peut être différente, le nombre, la position et les dimensions des bandes de peinture 16 appliquées sur la poutre 10 peuvent être différents, tant que la quantité de produit solide ou liquide mélangé à la peinture est suffisante pour détruire le bain de fusion obtenu et pour gêner un recyclage de qualité, et la revente de l'aluminium obtenu après refonte.The shape of the beams 10 may be different, the number, the position and the dimensions of the paint strips 16 applied to the beam 10 may be different, as long as the amount of solid or liquid product mixed with the paint is sufficient to destroy the bath melting obtained and to impede quality recycling, and the resale of the aluminum obtained after recasting.

Les bandes de peinture 16 peuvent avoir une couleur différente selon la taille, la forme et le type des poutres en aluminium 10.The paint strips 16 may have a different color depending on the size, shape and type of the aluminum beams 10.

Claims (9)

Poutre en aluminium (10) pour des structures de soutien de coffrage de dalle ou analogue, caractérisée en ce qu'elle comporte au moins une bande de peinture (16) comprenant un produit solide ou liquide mélangé à la peinture, ledit produit ayant une température de fusion égale ou supérieure à la température de fusion de l'aluminium.Aluminum beam (10) for slab formwork support structures or the like, characterized in that it comprises at least one strip of paint (16) comprising a solid or liquid product mixed with the paint, said product having a temperature melting point equal to or greater than the melting temperature of aluminum. Poutre selon la revendication 1, caractérisée en ce que ledit produit est sous forme d'une poudre métallique.Beam according to claim 1, characterized in that said product is in the form of a metal powder. Poutre selon la revendication 2, caractérisée en ce que ledit produit est une poudre de fer.Beam according to claim 2, characterized in that said product is an iron powder. Poutre selon la revendication 1, caractérisée en ce que ledit produit est sous forme de particules minérales ou en matériau composite ou organique.Beam according to Claim 1, characterized in that the said product is in the form of mineral particles or of composite or organic material. Poutre selon la revendication 4, caractérisée en ce que les particules minérales sont des fibres de verre ou des billes de verre.Beam according to claim 4, characterized in that the mineral particles are glass fibers or glass beads. Poutre selon l'une quelconque des revendications 1 à 5, caractérisée en ce que la quantité dudit produit mélangé à la peinture est au minimum de l'ordre de 2% à 3% du poids total de la poutre (10), pour suffisamment détériorer le bain d'aluminium obtenu après refonte de la poutre (10).Beam according to any one of claims 1 to 5, characterized in that the amount of said product mixed with the paint is at least of the order of 2% to 3% of the total weight of the beam (10), to sufficiently deteriorate the aluminum bath obtained after reshaping of the beam (10). Poutre selon l'une quelconque des revendications 1 à 6, caractérisée en ce que chaque bande de peinture (16) a une épaisseur (e) de l'ordre de 1 mm à 2mm.Beam according to any one of claims 1 to 6, characterized in that each strip of paint (16) has a thickness (e) of the order of 1 mm to 2mm. Poutre selon l'une quelconque des revendications 1 à 7, caractérisée en ce que chaque bande de peinture (16) a une largeur (I) de l'ordre de 20mm à 30mm.Beam according to any one of claims 1 to 7, characterized in that each strip of paint (16) has a width (I) of the order of 20mm to 30mm. Poutre selon l'une quelconque des revendications 1 à 8, caractérisée en ce que chaque bande de peinture (16) s'étend longitudinalement sur toute la longueur (L) de la poutre (10).Beam according to any one of claims 1 to 8, characterized in that each strip of paint (16) extends longitudinally over the entire length (L) of the beam (10).
EP20070354023 2006-04-20 2007-04-19 Aluminium beam for slab formworks Active EP1847665B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0603519A FR2900177B1 (en) 2006-04-20 2006-04-20 ALUMINUM BEAM FOR SLAB OR SIMILAR FORMWORK

Publications (2)

Publication Number Publication Date
EP1847665A1 true EP1847665A1 (en) 2007-10-24
EP1847665B1 EP1847665B1 (en) 2013-09-25

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EP (1) EP1847665B1 (en)
FR (1) FR2900177B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10982452B1 (en) * 2020-07-31 2021-04-20 Bond Formwork Systems, LLC Secondary joist profile for grid systems
US11047142B1 (en) 2020-07-31 2021-06-29 Bond Formwork Systems, LLC Main beam structure and profile for formwork grid systems
US11268289B2 (en) 2020-07-31 2022-03-08 Bond Formwork Systems, LLC Drophead nut for formwork grid systems

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3127438B1 (en) 2021-09-27 2023-10-06 Alphi METHOD FOR REDUCING THE ADHESION OF FOREIGN BODIES ON THE SURFACE OF A METAL SUBSTRATE

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2110335A (en) * 1981-11-28 1983-06-15 Stevecleave Ltd Buoyant scaffold pole
GB2191460A (en) 1986-06-13 1987-12-16 Pa Consulting Services Discouraging theft and unauthorised smelting of metal containers
EP0351243A1 (en) * 1988-07-14 1990-01-17 Kentek Limited An extendible structural beam
DE3921064A1 (en) * 1989-06-28 1991-01-10 Udo Rose Supporting beam for concrete shuttering - has end plates with flanges joined to sidewalls forming U=shaped connectors
EP1234929A1 (en) 2001-02-22 2002-08-28 Alphi Modular support structure of a shuttering for a slab or similar
GB2418436A (en) * 2004-09-23 2006-03-29 Lung Ching Shih Moldboard support beam

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2110335A (en) * 1981-11-28 1983-06-15 Stevecleave Ltd Buoyant scaffold pole
GB2191460A (en) 1986-06-13 1987-12-16 Pa Consulting Services Discouraging theft and unauthorised smelting of metal containers
EP0351243A1 (en) * 1988-07-14 1990-01-17 Kentek Limited An extendible structural beam
DE3921064A1 (en) * 1989-06-28 1991-01-10 Udo Rose Supporting beam for concrete shuttering - has end plates with flanges joined to sidewalls forming U=shaped connectors
EP1234929A1 (en) 2001-02-22 2002-08-28 Alphi Modular support structure of a shuttering for a slab or similar
GB2418436A (en) * 2004-09-23 2006-03-29 Lung Ching Shih Moldboard support beam

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10982452B1 (en) * 2020-07-31 2021-04-20 Bond Formwork Systems, LLC Secondary joist profile for grid systems
US11047142B1 (en) 2020-07-31 2021-06-29 Bond Formwork Systems, LLC Main beam structure and profile for formwork grid systems
US20220034104A1 (en) * 2020-07-31 2022-02-03 Bond Formwork Systems, LLC Secondary joist profile grid systems
US11268289B2 (en) 2020-07-31 2022-03-08 Bond Formwork Systems, LLC Drophead nut for formwork grid systems
US11473321B2 (en) 2020-07-31 2022-10-18 Bond Formwork Systems, LLC Main beam structure and profile for formwork grid systems
US11585105B2 (en) * 2020-07-31 2023-02-21 Bond Formwork Systems, LLC Secondary joist profile for grid systems

Also Published As

Publication number Publication date
FR2900177B1 (en) 2008-06-27
FR2900177A1 (en) 2007-10-26
EP1847665B1 (en) 2013-09-25

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