EP2505731B1 - Method for manufacturing a sheet with open ribs intended for forming a framework for a composite floor - Google Patents
Method for manufacturing a sheet with open ribs intended for forming a framework for a composite floor Download PDFInfo
- Publication number
- EP2505731B1 EP2505731B1 EP20120161639 EP12161639A EP2505731B1 EP 2505731 B1 EP2505731 B1 EP 2505731B1 EP 20120161639 EP20120161639 EP 20120161639 EP 12161639 A EP12161639 A EP 12161639A EP 2505731 B1 EP2505731 B1 EP 2505731B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- metal sheet
- process according
- ribs
- sheet
- band
- 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.)
- Not-in-force
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
- E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
- E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
- E04B5/40—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element with metal form-slabs
Definitions
- some reliefs 13 are located in a zone Z for overlapping between two sheets 2 when the latter are in position to form a collaborating floor.
- the term "covering” designates the covering, on at least one part, of at least one rib 5 of a sheet 2 by a rib 5 of another sheet 2 and not the only covering of the flat portions 9 of two sheets 2.
- This Z zone has a width of between 5 and 50 mm and advantageously close to 25 mm. It extends over the entire large dimension L of the sheets 2, in the vicinity of the overlapping edges of the sheets 2.
- the reliefs 13 of the covered sheet have a portion oriented towards the covering sheet devoid of reliefs, in this case a flattened portion 14, 15 or 16.
- the profiling of the grooves 8, 10 and ribs 5 is advantageously made in several successive passes until the desired dimensions of the grooves 8, 10 and ribs 5 are obtained.
- the grooves 8, 10 are formed. and ribs 5 is obtained in a single pass using a tool of complex shape.
- the cutting of the strip is carried out so that it defines, here, the small dimension l of the sheet 2.
- the cut is made so as to define the largest dimension of the finished sheet 2
- this band metallic tool known per se shear type, not shown, comprising at least one support jaw and a movable jaw.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Moulds, Cores, Or Mandrels (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Description
L'invention a trait à un procédé de fabrication d'une tôle à nervures ouvertes destinée à servir de coffrage et à former une armature pour un plancher collaborant.The invention relates to a method of manufacturing an open-ribbed sheet to serve as formwork and to form a frame for a collaborating floor.
Un plancher collaborant est un plancher qui combine deux matériaux, à savoir du béton et de l'acier. Dans un tel plancher, le béton assure une résistance à la pression tandis que l'acier permet une résistance à la traction.A collaborative floor is a floor that combines two materials, namely concrete and steel. In such a floor, concrete provides resistance to pressure while steel allows tensile strength.
De plus, l'absence de coffrage autre que la tôle à nervures ouvertes, permet une mise en oeuvre plus rapide en utilisant moins de béton que pour une dalle pleine en béton.In addition, the absence of formwork other than the open-ribbed sheet, allows a faster implementation using less concrete than for a solid concrete slab.
L'acier utilisé dans un plancher collaborant se présente généralement sous forme de tôle à nervures ouvertes, empilables pour faciliter leur transport. La couverture de la surface à recouvrir est assurée avec un chevauchement partiel des tôles. Ces tôles en chevauchement définissent une armature pour le plancher collaborant.The steel used in a collaborative floor is generally in the form of sheet with open ribs, stackable for easy transport. The coverage of the surface to be covered is ensured with a partial overlap of the sheets. These overlapping sheets define a reinforcement for the collaborating floor.
La liaison entre le béton et l'acier est assurée par les nervures des tôles. Il s'agit d'une liaison par frottement.The connection between concrete and steel is provided by the ribs of the sheets. This is a friction bond.
Des reliefs ménagés sur les flancs des nervures évitent un glissement du béton sur la tôle selon une direction parallèle à un axe longitudinal des nervures.Reliefs formed on the flanks of the ribs prevent slippage of the concrete on the sheet in a direction parallel to a longitudinal axis of the ribs.
Si elles optimisent la liaison entre le béton et l'acier, de telles tôles équipées de reliefs sur les flancs des nervures présentent comme inconvénient, lors de leur mise en place, de ne pas se recouvrir parfaitement au niveau de la zone de chevauchement. La présence des reliefs dans la zone de recouvrement induit un espace dans lequel du laitier peut passer lors du coulage du béton sur les tôles.If they optimize the connection between the concrete and the steel, such plates equipped with reliefs on the flanks of the ribs have the disadvantage, when they are put in place, of not overlapping perfectly at the level of the overlap zone. The presence of reliefs in the overlap zone induces a space in which slag can pass during the pouring of concrete on the sheets.
C'est à ces inconvénients qu'entend plus particulièrement remédier l'invention en proposant de fabriquer une tôle à nervures ouvertes pour plancher collaborant, présentant un recouvrement optimal, tout en garantissant la liaison entre le béton et l'acier.It is these drawbacks that the invention intends to remedy more particularly by proposing to manufacture a sheet with open ribs for collaborating flooring, presenting an optimal covering, while guaranteeing the connection between the concrete and the steel.
A cet effet, l'invention a pour objet un procédé de fabrication d'une tôle à nervures ouvertes, tel que défini à la revendication 1.For this purpose, the subject of the invention is a method of manufacturing an open-ribbed sheet, as defined in claim 1.
En réalisant des zones de recouvrement où les reliefs sont, au moins partiellement, absents, on minimise le jour entre les deux tôles lorsqu'elles se recouvrent et donc on limite les risques de coulure du laitier entre ces dernières, cela tout en préservant une liaison optimale, d'une part, entre les tôles et, d'autre part, entre la tôle et le béton.By producing overlapping areas where the reliefs are at least partially absent, the day between the two sheets is minimized when they overlap and therefore the risks of slag flow between them are limited, while preserving an optimal connection, on the one hand, between the sheets and, on the other hand, between the sheet and the concrete.
Des aspects avantageux mais non obligatoires de l'invention sont spécifiés aux revendications dépendantes.Advantageous but non-mandatory aspects of the invention are specified in the dependent claims.
L'invention sera mieux comprise et d'autres avantages de celle-ci apparaîtront plus clairement à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple et faite en se référant aux dessins annexés dans lesquels :
- la
figure 1 est une vue de côté d'un plancher collaborant fini réalisé avec une tôle fabriquée conformément à l'invention, - la
figure 2 est une vue générale en perspective, à la même échelle que lafigure 1 , de la tôle de lafigure 1 , représentée seule, - la
figure 3 est une vue générale, à plus petite échelle et sous un autre angle, de deux tôles similaires à celle illustrée auxfigures 1 et 2 , en configuration de pré-montage, - la
figure 4 est une vue, à plus grande échelle, du détail IV à lafigure 3 , - la
figure 5 est une vue de côté selon la flèche V et à la même échelle que lafigure 3 , - la
figure 6 est une vue analogue à lafigure 3 , à la même échelle que celle ci, les tôles étant représentées en position montée, c'est-à-dire se recouvrant partiellement et - la
figure 7 est une vue à plus grande échelle du détail \/II à lafigure 6 .
- the
figure 1 is a side view of a finished collaborating floor made with a sheet made according to the invention, - the
figure 2 is a general perspective view, on the same scale as thefigure 1 , sheet metalfigure 1 , represented alone, - the
figure 3 is a general view, on a smaller scale and from another angle, of two sheets similar to the one illustrated inFigures 1 and 2 , in pre-assembly configuration, - the
figure 4 is a view, on a larger scale, from detail IV tofigure 3 , - the
figure 5 is a side view along arrow V and at the same scale as thefigure 3 , - the
figure 6 is a view similar to thefigure 3 , on the same scale as this one, the sheets being represented in mounted position, that is to say partially overlapping and - the
figure 7 is a larger-scale view of detail \ / II to thefigure 6 .
Le plancher collaborant 1 représenté à la
Dans le béton 3, on insère à une distance donnée au dessus de la tôle 2, en regardant la
En regardant la
La tôle 2 comprend plusieurs nervures ouvertes 5. Ces nervures 5 sont régulièrement disposées parallèlement à la plus petite dimension ℓ de la tôle 2. En variante, elles peuvent être disposées parallèlement à la plus grande dimension L de la tôle 2.The
Il est à noter que, généralement, les tôles sont rectangulaires. Dans un mode de réalisation non illustré, elles sont carrées.It should be noted that, generally, the sheets are rectangular. In a non-illustrated embodiment, they are square.
Comme cela est plus particulièrement visible à la
La face supérieure 7 de chaque nervure 5, à savoir le sommet du trapèze de chaque nervure 5, est pourvue d'au moins une rainure longitudinale 8. La partie 9 plane de la tôle 2 située entre deux nervures 5 et reliant les bases 6 de ces deux nervures 5 voisines, est également équipée d'au moins une rainure longitudinale 10. Les rainures 8 et 10 sont disposées parallèlement. Elles sont orientées selon une direction parallèle à un axe longitudinal A de chaque nervure 5. En d'autres termes, les rainures 8 et 10 sont également orientées parallèlement à la petite dimension ℓ de la tôle 2.The
Ces rainures 8, 10 sont ménagées sur, respectivement, toutes les nervures 5 et toutes les parties planes 9 de la tôle 2. En variante, elles n'équipent que certaines des nervures 5 et/ou certaines des parties planes 9. Dans un mode de réalisation non illustré, la face 7 et les parties 9 de chaque nervure 5 sont dépourvues de rainures.These
Les largeurs des rainures 8 et 10 sont différentes. En variante elles peuvent être identiques.The widths of the
Les rainures 8 et 10 forment des guides et des logements de réception pour des éléments de fixation des tôles 2. La fixation des tôles 2 l'une sur l'autre est réalisée par des organes connus en soi, par exemple des vis, des rivets ou des boulons.The
Les flancs 11 et 12 de chaque nervure 5, c'est-à-dire les parois reliant sa base 6 à son sommet 7, sont dans l'exemple légèrement inclinées par rapport à un axe vertical B. Cet axe B est perpendiculaire à un plan principal P de la tôle 2 dans lequel se situent les parties planes 9. L'angle d'inclinaison a entre, d'une part, un flanc 11 ou 12 et, d'autre part, l'axe B peut être compris entre 10° et 170°.The
Les flancs 11, 12 de chaque nervure 5 sont pourvus de reliefs 13. En l'espèce, ces reliefs sont en forme de parallélogramme rectangle. En variante non illustrée, ils peuvent avoir d'autres formes, par exemple trapézoïdale, carrée ou circulaire. Ils sont régulièrement espacés et de dimensions telles qu'ils occupent la majeure partie de la largeur L11-L12 des flancs 11 et 12. Dans un mode de réalisation non illustré, la répartition des reliefs 13 est différente. Avantageusement, la répartition des reliefs 13 sur les flancs 11 et 12 est identique sur toutes les nervures 5. En variante non illustrée, elle est différente d'une nervure à l'autre.The
Ces reliefs 13 s'étendent vers l'extérieur, à partir du flanc 11 ou 12 d'une nervure 5 sur lequel ils sont ménagés, en direction du flanc 12 ou 11 d'une nervure 5 voisine. Les reliefs 13 sont répartis, en l'espèce de manière régulière, sur toute la longueur de chaque nervure 5, c'est-à-dire sur toute la petite dimension ℓ de la tôle 2.These
Comme illustré aux
Comme illustré à la
Le flanc 12 de chaque nervure 5, visible aux
Une telle liaison entre les tôles 2, à jeu J minimal, à savoir voisin de 1 mm, permet également lors des opérations de fixation mutuelle des tôles 2 entre elles, couramment dénommées « couturage », d'insérer de manière efficace des organes de fixation, tels que des vis, des pointes, des boulons ou des rivets dans les rainures 8 et/ou 10. En variante, la fixation mutuelle des tôles 2 est réalisée par d'autres techniques connues en soi, par exemple par soudage ou collage.Such a connection between the
Le nombre de reliefs 13 susceptibles d'empiéter, au moins partiellement, dans la zone Z varie d'une tôle 2 à l'autre compte tenu du procédé de fabrication de ces dernières. Ce procédé est maintenant décrit. Dans un mode de réalisation non représenté, les parties planes 9 et/ou les sommets 7 des nervures 5 sont également pourvus de relief 13.The number of
On réalise les tôles 2 à nervures ouvertes destinées à former une armature pour un plancher collaborant à partir de bandes métalliques enroulées pour former des bobines, non illustrées et connues en soi.
La première opération consiste à former par emboutissage, à l'aide d'un outil de type poinçon et connu en soi, des reliefs 13 dans la bande lorsque celle-ci est déroulée. Cette première étape permet également, par la présence des reliefs 13, de définir la position des nervures 5 et des rainures 8, 10 sur la bande, pour une réalisation dans une étape ultérieure. En d'autres termes, les reliefs 13, alignés sur la bande forment des lignes discontinues de guidage.The first operation is to form by stamping, using a punch-type tool and known per se,
Dans deux étapes suivantes, par profilage ou, éventuellement, par emboutissage et à l'aide d'un outil de forme adaptée et différente de la forme de celui utilisé lors de la première étape, on réalise d'abord les rainures 8, 10 et ensuite les nervures 5.In two following steps, by profiling or, optionally, by stamping and with the aid of a tool of suitable shape and different from the shape of the one used in the first step, the
Le profilage des rainures 8, 10 et des nervures 5 est réalisé avantageusement en plusieurs passes successives jusqu'à obtenir les dimensions voulues des rainures 8, 10 et des nervures 5. Dans un mode de réalisation non représenté, la réalisation des rainures 8, 10 et des nervures 5 est obtenue en une seule passe à l'aide d'un outil de forme complexe.The profiling of the
Lorsque la bande est profilée et/ou emboutie et présente l'ensemble des nervures 5, des rainures 8, 10 et des reliefs 13 que l'on retrouve sur une tôle 2 finie, on coupe régulièrement cette bande afin d'individualiser chaque tôle 2.When the strip is profiled and / or stamped and has all the
La coupure de la bande s'effectue de manière à ce qu'elle définisse, ici, la petite dimension ℓ de la tôle 2. En variante non illustrée, la coupure est réalisée de manière à définir la plus grande dimension de la tôle finie 2. On utilise pour couper cette bande métallique un outil connu en soi de type cisaille, non illustré, comprenant au moins une mâchoire d'appui et une mâchoire mobile.The cutting of the strip is carried out so that it defines, here, the small dimension ℓ of the
Lors de la coupe de chaque tôle 2 dans la bande, on dispose, au niveau de la mâchoire mobile de la cisaille, un contre-outil dont les dimensions correspondent à celles de la zone Z. Avantageusement, il s'agit d'un poinçon à face plane, connu en soi. La face plane du poinçon a une largeur correspondant à celle de la zone Z. Ainsi, lors de la séparation d'une tôle de la bande, on écrase ou « aplanit » simultanément tous les reliefs 13 situés à proximité de la ligne de coupe et s'étendant dans une région dont la largeur correspond à la longueur de la zone Z. L'aplanissement des reliefs 13 par cet outil est effectué sur le bord libre de la bande destinée à former un bord 200 ou 201 d'une autre tôle 2. Ainsi, on réalise l'aplanissement des reliefs 13 avant la séparation de la tôle 2 de la bande. En variante, l'aplanissement des reliefs 13 est effectué après la séparation, étant entendu que cela nécessite une reprise des tôles 2 individualisées.When cutting each
Un tel procédé est simple à mettre en oeuvre et ne nécessite qu'un contre-outil, pour l'aplanissement des reliefs 13, fixé sur l'outil de coupe de la bande. En d'autres termes, il est aisé de fabriquer de telles tôles 2 en utilisant des installations connues de fabrication de tôles 2, après adaptation de celles-ci pour incorporer un poinçon à face plane ou un organe d'aplanissement équivalent.Such a method is simple to implement and requires only a counter-tool for flattening the
Un tel procédé permet de réaliser, sur chaque tôle, un détrompeur indiquant que chaque tôle 2 a un côté destiné à recouvrir une tôle 2 et un autre côté pouvant être recouvert pour une tôle 2.Such a method makes it possible to produce, on each sheet, a polarizer indicating that each
En fonction de la zone que l'on veut recouvrir, on modifie le contre-outil pour un outil plus ou moins large, afin d'écraser les reliefs 13 sur une position plus ou moins importante.Depending on the area to be covered, it modifies the counter-tool for a tool more or less wide, to crush the
Claims (12)
- Process for the production of a metal sheet (2) with open ribs intended to be used for shuttering and to form a reinforcement for a floor with cast-in-place topping (1), comprising successive steps consisting of:a) forming aligned raised areas (13) in a metal band by embossing,b) forming ribs (5) in the same band by shaping or by embossing in at least one pass so that the raised areas (13) are distributed over one of the two opposing flanks (11, 12) of one of the ribs, andc) cutting the band in order to customise the metal sheet (2),
characterised in that the process comprises at least one step of:d) for the or each raised area (13) that is at least partially located in a zone (Z) of the metal sheet (2) intended to be covered by another metal sheet to form a floor with cast-in-place topping (1), smoothing off the raised area over a distance corresponding to the part (14; 15; 16) of the raised area located in said zone of the metal sheet. - Process according to claim 1, characterised in that step d) is performed during step c) after the metal sheet (2) is separated from the band.
- Process according to claim 1, characterised in that step d) is performed during step c) before the metal sheet (2) is separated from the band.
- Process according to claim 3, characterised in that the or each raised area (13) that is smoothed off during step d) is located close to a cutting line of the metal sheet (2) formed in step c).
- Process according to claim 4, characterised in that to smooth off the or each raised area (13) during step d), a die is used that is fixed to a tool for cutting the band used to conduct step c).
- Process according to claim 5, characterised in that the die is a punching die with a plane face, the width of which corresponds to that of said zone (Z) of the metal sheet (2).
- Process according to any one of claims 1 to 3, characterised in that the or each raised area (13) that is smoothed off during step d) is located on a free edge of the band.
- Process according to any one of the preceding claims, characterised in that during step a) a sufficient number of raised areas (13) are formed to be distributed, in step b), over the entire length of the two opposing flanks (11, 12) of one, or even each of the ribs (5).
- Process according to one of the preceding claims, characterised in that the raised areas (13) formed in step a) are parallelepipedal in form.
- Process according to any one of the preceding claims, characterised in that said zone (Z) of the metal sheet (2) has a width ranging between 5 and 50 mm.
- Process according to claim 10, characterised in that said zone (Z) of the metal sheet (2) has a width close to 25 mm.
- Process according to any one of the preceding claims, characterised in that during step b) at least one groove (8, 10) is additionally formed on the metal sheet (2) parallel to the ribs (5) by shaping.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1152586A FR2973404A1 (en) | 2011-03-29 | 2011-03-29 | OPEN GROOVED SHEET FOR FORMING A FRAME FOR A COLLABORATING FLOOR AND METHOD FOR MANUFACTURING SUCH SHEET |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2505731A1 EP2505731A1 (en) | 2012-10-03 |
EP2505731B1 true EP2505731B1 (en) | 2013-10-23 |
Family
ID=45872869
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20120161639 Not-in-force EP2505731B1 (en) | 2011-03-29 | 2012-03-28 | Method for manufacturing a sheet with open ribs intended for forming a framework for a composite floor |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2505731B1 (en) |
FR (1) | FR2973404A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021121636A1 (en) | 2021-08-20 | 2023-02-23 | swiss-park-GmbH | soil profile |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL147819B (en) * | 1970-09-04 | 1975-11-17 | Hollandse Bouwcombinatie Holla | PROFILED FLOOR PLATE, AS WELL AS CASTED CONCRETE FLOOR IN IT. |
US4106249A (en) * | 1977-06-30 | 1978-08-15 | Verco Manufacturing, Inc. | Method and apparatus for interlocking and venting a structural diaphragm |
JPS58168608U (en) * | 1982-05-06 | 1983-11-10 | 日本鋼管ライトスチ−ル株式会社 | Deck plate for synthetic flooring |
US5056348A (en) * | 1989-06-01 | 1991-10-15 | Robertson-Ceco Corporation | Method of making a profiled sheet metal building unit |
GB2306526B (en) * | 1995-11-02 | 1999-06-30 | Richard Lees Steel Decking Ltd | Floor decking |
US7779590B2 (en) * | 2006-06-20 | 2010-08-24 | New Jersey Institute Of Technology | Composite floor system having shear force transfer member |
-
2011
- 2011-03-29 FR FR1152586A patent/FR2973404A1/en not_active Withdrawn
-
2012
- 2012-03-28 EP EP20120161639 patent/EP2505731B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
EP2505731A1 (en) | 2012-10-03 |
FR2973404A1 (en) | 2012-10-05 |
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