EP2248963A1 - Verschalungssystem für das Herstellen von Betonmauern unter Verwendung von Kunststoffprofilen - Google Patents

Verschalungssystem für das Herstellen von Betonmauern unter Verwendung von Kunststoffprofilen Download PDF

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Publication number
EP2248963A1
EP2248963A1 EP10305460A EP10305460A EP2248963A1 EP 2248963 A1 EP2248963 A1 EP 2248963A1 EP 10305460 A EP10305460 A EP 10305460A EP 10305460 A EP10305460 A EP 10305460A EP 2248963 A1 EP2248963 A1 EP 2248963A1
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EP
European Patent Office
Prior art keywords
profiles
walls
section
front wall
profile
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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.)
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Application number
EP10305460A
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English (en)
French (fr)
Inventor
Dominique Bargues
Joceline Gehanno
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Individual
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Individual
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Publication of EP2248963A1 publication Critical patent/EP2248963A1/de
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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
    • E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
    • E04G15/02—Forms or shutterings for making openings, cavities, slits, or channels for windows, doors, or the like
    • 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
    • E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
    • E04G15/06—Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
    • E04G15/063—Re-usable forms

Definitions

  • the present invention is in the field of building construction and more particularly the realization of concrete walls for such buildings.
  • the invention more specifically relates to the reservation of openings, mainly for doors or windows, in a wall to be obtained by pouring concrete, in place or in prefabrication, and relates specifically to the devices used for this purpose and their implementation. .
  • a formwork also known as a manikin
  • the formwork is provided with reinforcements to maintain the spacing of the opposite walls and to avoid their deflection under the pressure of liquid concrete.
  • the formwork is removed by sliding it transversely to the plane of the wall.
  • the walls of the latter a slight obliquity or clearance, also called "fruit", which facilitates the stripping. This is well known and also allows to recover the formwork without being damaged, for later reuse.
  • the frames or frames of doors or windows can then be put in place and fixed in the openings thus obtained, in various ways known to those skilled in the art.
  • the forms used in the first case are made by assembling boards of wood or plywood to form a generally rectangular frame. It has also been proposed to make these frames, or dummies, from planks or profiles of plastic, in particular PVC.
  • the document FR-2915220 describes a formwork system by assembling PVC sections of flattened section, corresponding to the wooden planks. To obtain the required fruit, these flat profiles are connected by molded corner pieces with the inclinations required to give the proper draft. Thus, it is sufficient to assemble a single flat profile, with parallel faces, with such a corner piece to obtain the desired inclination of the outer surfaces of the formwork, as is clearly explained in the aforementioned document.
  • the aim of the invention is to propose a solution to these problems and to provide an economical, reusable, recyclable formwork system that can adapt to various wall thicknesses, and that can form forms or dummies for openings as indicated for the first case mentioned above, or to reinforce frame frames in the second case, or to form abutment forms, etc. It also aims to facilitate the production of openings with edges having particular shapes in section, for example the realization of regingots, or an increase or reduction of the fruit, while retaining the use of the same basic elements of the formwork .
  • the invention relates to a formwork system for producing, in cast-in-place or prefabricated concrete walls, openings or abutments, this formwork system using plastic profiles for constitute walls in contact with which the concrete is poured.
  • this formwork system is characterized in that said profiles have a section comprising side walls having opposite respective outer faces parallel to a base plane, corresponding to the general plane of the wall to be produced, and a front wall having a flat outer face and inclined relative to a normal to said base plane.
  • This inclination is equal to that of the desired fruit, for example an angle ⁇ of 1 to 5 degrees, corresponding to a slope of approximately 2 to 5%, typically about 3%, this value being however in no way limiting.
  • the term "wall” here means any element having a certain thickness, having two generally parallel faces, and whatever the internal structure of these walls.
  • the profiles are preferably cellular profiles, the walls of which may comprise one or more layers of cells, but they could also be profiles formed of a shell wall, solid or not, in a first plastic material, filled with another material such as for example a polymer foam.
  • the sections have a section of generally U-shaped shape, said side walls forming the wings of the U and the planes of the outer faces of the flanges of the U being parallel to the base plane, and the front wall forming the bottom of the U, the outer face of the bottom of the U being flat and inclined relative to a normal to said base plane.
  • the profiles may also have a section of generally square or rectangular shape, constituted by said parallel side walls, the front wall, and a fourth wall, opposite and parallel to the front wall and extending between the edges of the side walls, in preferably leaving a small overhang of these with respect to the outer face of said fourth wall.
  • profiles according to the invention makes it possible to retain the advantages of plastic profiles of known type, in particular with regard to sliding during stripping, allowing the same elements to be recovered and reused many times. It adds in addition a great improvement of rigidity, facilitating the implementation, and limiting the needs for reinforcement elements and support to prevent bending under the pressure of poured concrete.
  • the profiles are assembled to form frames, or mannequins, in the format of the desired openings, the outer faces of the end walls of the constituent sections being located at the periphery and facing outwardly of the manikin.
  • the assembly is preferably performed in the corners by gluing or welding, after cutting the ends of each profile member beveled at 45 ° for a conventional assembly at right angles.
  • the edges of the side walls, opposite to the front wall, as well as the inside face of the front wall are in a plane orthogonal to the base plane of the frame, corresponding to the overall plan of the wall to be made, and the inner faces of the side walls, as well as the planes of the outer faces of said side walls, remaining parallel to said base plane.
  • the reinforcements may consist of simple boards formed of plastic profiles, and width corresponding to that of the space between the side walls.
  • a rectangular frame formed of U-shaped profiles it will be possible to place reinforcing planks with their ends inserted between the flanges of the U, and others at right angles to the first, abutting at their ends against the edges of the flanges. . It will be possible to do similarly in a frame made of sections of square or rectangular section, placing the ends of the board between the edges of the walls side which are overflowing with respect to the fourth wall.
  • the height of the wings of the U will be of the order of 100 mm, and the thickness of the bottom of the U of about 40 mm.
  • U-shaped sections are used whose internal width between the inner faces of the side walls, that is to say the U flanges, as well as the thickness of the front wall, that is to say from the bottom of the U, are identical for all the profiles used, and the outer width, between the parallel planes of the outer faces of the wings of the U is defined according to the thickness of the wall to be made.
  • the base profile in a basic configuration, suitable for making openings or abouts in walls of the smallest thickness envisaged, ie 150 mm, the base profile will have a width corresponding to this minimum wall thickness, so 150 mm.
  • a suitable section whose section includes a portion having shapes and dimensions identical to that of the base profile and incorporating widening elements, located laterally on both sides at least at the wall front, to extend the outer surface of the front wall on each side, and therefore increase its width.
  • These widening elements preferably consist of an additional cell added on each side of the U-shaped base, and obtained directly during the extrusion of the profile.
  • the profile will have on each side a 5 mm thick cell; for a wall of 180 mm, the dimension of these cells will be 15 mm, and for a wall of 200 mm, the dimension of these cells will be 25 mm.
  • similar widening elements are formed at the edges of the walls laterally remote from the front wall, that is to say at the ends of the wings of the U in the case of a U-shaped profile. As will be better understood later, this ensures a better maintenance of the profile. between the panels, avoiding in particular that the profile tends to rotate on itself.
  • the width inside the U, or between the inner faces of the side walls remains constant, for example about 80 mm in the case of the above examples.
  • this reinforcement typically consisting of a single cellular plastic board, is inserted between the flanges of the U or between the side walls . Since the width between these wings or walls is identical regardless of the outer width of the profile, one can always use the same reinforcing plank section, width 80 in the above example, regardless of the outer width of the profile.
  • Another advantage is that, for the manufacture of the different widths of the profile, it is possible to use a single basic extrusion die, corresponding to the maximum width of the profiles, ie 250 mm in the aforementioned example, and this die is added inserts to reduce the width according to that of the profile to be obtained, which limits the manufacturing costs due to the die, using in fact a single flexible die.
  • the profile is provided on its inclined face with a complementary cellular profile having a small face located in the plane of one of the outer faces of a lateral wall, a first large face inclined relative thereto by an angle complementary to the angle of inclination of the outer face of the front wall, and a second large face having a section of complementary shape to said particular shape.
  • This complementary shape may consist simply of a flat surface more inclined relative to the base plane than the outer surface of the front wall. It is then in fact to increase the fruit of the formwork. It may also, conversely, be less inclined, or even perpendicular to said base plane, so as to reduce or cancel the fruit. It can still have an inclined profile, on only a part of the width of the profile, to achieve for example a regingot.
  • the profiles according to the invention can also be used, without being assembled in the form of frames or manikin, for the realization of abouts of veil or abouts of wall.
  • the profiles are then placed in a simple alignment between the panels, the wings of the U, or side walls, extending outwardly of the formwork.
  • the wings of the U or side walls, with the possible additional widening elements or cells, then participate in maintaining the profiles and preventing any pivoting on themselves between the panels.
  • the profiles used comprise magnets, integrated in some of the walls of said sections, and can be distributed over the length thereof.
  • magnets make it possible to keep the profiles against metal elements having magnetic properties, such as, for example, steel shuttering panels, or frames metal door frames.
  • magnets can be placed in the side walls of the profiles, to maintain them against the panels between which the mannequins or profiles are placed.
  • magnets can also be placed in the fitting profiles to hold them against metal frames.
  • the manikin 1 represented in Figures 1 to 3 is in the form of a rectangular frame whose four sides are constituted by a plastic honeycomb section 10, for example extruded PVC.
  • This frame extends along a basic plane P, corresponding to the general plane of the wall where it will be used, that is to say the plane of the drawing sheet of the figure 2 .
  • the section of the profile 10, shown figure 4 has a generally U-shaped having a bottom 11 and two wings 12 and 13, the assembly constituting several cells juxtaposed 15. The number and the relative disposition of these cells are not limited to what is shown figure 4 .
  • the wings 12 and 13 of the U extend parallel to the base plane P, the overall width of the U, that is to say the distance between the outer faces 122 and 132 of the wings, being typically 150 mm in width. presented example figure 1 .
  • the inner faces 121, 131 of the wings are parallel, for example 81 mm apart, and of the same height h1, for example 65 mm.
  • the inner face 111 of the bottom 11 of the U is perpendicular to the plane P.
  • the outer face 112 of the bottom of the U is inclined relative to the normal to the plane P and therefore with respect to the inner face 111, of an angle ⁇ corresponding to the value of the desired fruit, a slope of about 2 to 3%, so that the height h2 of the outer face 122 of the wing 12 of the U is a few mm lower than the height h3 of the outer face 132 of the wing 13, which is for example 105 mm. It will be noted that the end faces 123, 133 of the wings of the U are in the same plane orthogonal to the plane P.
  • the sections 10 are cut to the desired length, at 45 °, as shown figure 3 , then assembled by gluing or welding at the corners. It will also be possible of course to make assemblies at angles other than 90 °, depending on the needs.
  • reinforcing boards 21, 22, also made of cellular plastic sections The figure 8 shows the cross-section of such a board, whose width is substantially equal to the distance between the inner faces of the flanges of the U-shaped section 10. For example, this width is 80 mm, and the thickness of about 34 mm , or substantially the thickness of said wings of the U.
  • a board 21 is placed with its ends inserted between the wings of the U profiles 10 facing each other.
  • the other boards 22 are placed between the edges 123, 133, wings of the other two sections, thus framing the board 21, as can be seen figure 1 .
  • the width and the thickness of the boards 21 and 22 are determined, for example respectively 80 and 34 mm, so, on the one hand, that a board 21 is inserted virtually without clearance between the wings of the U, and on the other hand, that the ends of the boards 22 fit just on the end faces 123, 133 of the wings of the U.
  • the fixing of these boards is also achieved by gluing or welding.
  • FIGS. 5 to 7 show the section sections 10a, 10b, 10c, adapted for the production of thicker walls, typically 160, 180 and 200 mm respectively.
  • All these sections have a central portion of section identical to that of the profile of the figure 4 , and first widening elements 115, 116, which extend the bottom of the U laterally, beyond the outer faces 122, 132 of the wings of the base profile.
  • These widening elements comprise cells like the rest of the profile and are formed of a piece with this one during extrusion manufacturing.
  • Second widening elements 125, 135, of the same width, are formed at the ends of the wings of the U, and constitute heels which ensure a better holding of the profiles between the panels, and in particular prevent them from pivoting on themselves.
  • Figures 11 and 12 illustrate the use of a second complementary profile 40, whose section is arranged to come over-thickness only over a portion of the width of the base profile, to form a regingot.
  • FIGS. 13 and 14 show the use of a third complementary section 50, then used to reduce or cancel the fruit of a manikin formed profiles 10b.
  • width of these complementary profiles can of course be adapted to each use, depending on the width of the base profile.
  • this adjustment can be made by eliminating excess cells from an extruded profile in the greatest usable width by simple longitudinal cuts of the complementary profiles, before they are assembled on the base profile.
  • a manikin of the type represented figure 1 can also be used to support a metal frame embedded in a wall during concrete pouring. This particular application is schematically illustrated Figures 15 to 17 .
  • the profile shown figure 18 comprises two parallel side walls 1120, 1130 and a front wall 1110 respectively corresponding to the wings 12, 13 and the bottom 11 of the previously described U-profile. It further comprises a fourth wall 1140 extending between the side walls, preferably leaving slight overhangs 1121, 1131 thereof relative to the fourth wall 1140. These overhangs allow for example to house between them ends of the boards 21, as described above for use with U-profiles.
  • the figure 19 illustrates a particular embodiment of a profile of greater width, wherein the increase in width is obtained by adding a row of cells 1150 on each side wall, thereby increasing the thickness of these walls, and therefore the width of the profile.
  • This last arrangement could also be used for the wings of U-section profiles. It will be possible to play on the number and / or the width of the rows of additional cells to adapt the width of the profile according to the thickness of the wall under construction. .

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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)
EP10305460A 2009-05-01 2010-04-29 Verschalungssystem für das Herstellen von Betonmauern unter Verwendung von Kunststoffprofilen Withdrawn EP2248963A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0952939A FR2945062B1 (fr) 2009-05-01 2009-05-01 Systeme de coffrage pour la realisation de murs en beton, utilisant des profiles en matiere plastique

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EP2248963A1 true EP2248963A1 (de) 2010-11-10

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EP10305460A Withdrawn EP2248963A1 (de) 2009-05-01 2010-04-29 Verschalungssystem für das Herstellen von Betonmauern unter Verwendung von Kunststoffprofilen

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EP (1) EP2248963A1 (de)
FR (1) FR2945062B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3035131A1 (fr) * 2015-04-16 2016-10-21 Coffrabat Procede de fabrication d'un element de coffrage et element de coffrage

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3025543B1 (fr) * 2014-09-10 2016-09-02 Atout Coffrage Systeme de coffrage avec des profiles en bois

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2359754A1 (de) * 1973-11-30 1975-06-12 Huennebeck Gmbh Mittel zum befestigen einer aussparung an einer staehlernen schalflaeche
FR2346544A1 (fr) * 1976-04-02 1977-10-28 Technal International Sa Procede de preparation de feuillures pour huisserie
JPS5366828U (de) * 1976-11-08 1978-06-05
FR2657109A1 (fr) * 1990-01-18 1991-07-19 Cecam Sarl Procede d'assemblage des elements de coffrage destines a amenager les espaces vides des batiments.
EP1710383A1 (de) * 2004-01-09 2006-10-11 José Angel Navarro Pradas Schutzrahmen zur montage von verschalungen
FR2915220A1 (fr) 2007-04-23 2008-10-24 Dominique Bargues Element d'assemblage d'angle pour coffrage et coffrage ainsi obtenu

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2359754A1 (de) * 1973-11-30 1975-06-12 Huennebeck Gmbh Mittel zum befestigen einer aussparung an einer staehlernen schalflaeche
FR2346544A1 (fr) * 1976-04-02 1977-10-28 Technal International Sa Procede de preparation de feuillures pour huisserie
JPS5366828U (de) * 1976-11-08 1978-06-05
FR2657109A1 (fr) * 1990-01-18 1991-07-19 Cecam Sarl Procede d'assemblage des elements de coffrage destines a amenager les espaces vides des batiments.
EP1710383A1 (de) * 2004-01-09 2006-10-11 José Angel Navarro Pradas Schutzrahmen zur montage von verschalungen
FR2915220A1 (fr) 2007-04-23 2008-10-24 Dominique Bargues Element d'assemblage d'angle pour coffrage et coffrage ainsi obtenu

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3035131A1 (fr) * 2015-04-16 2016-10-21 Coffrabat Procede de fabrication d'un element de coffrage et element de coffrage

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Publication number Publication date
FR2945062A1 (fr) 2010-11-05
FR2945062B1 (fr) 2011-07-22

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