EP3947856B1 - Structure porteuse construite en matière synthétique pour un panneau de coffrage - Google Patents

Structure porteuse construite en matière synthétique pour un panneau de coffrage Download PDF

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Publication number
EP3947856B1
EP3947856B1 EP20719945.6A EP20719945A EP3947856B1 EP 3947856 B1 EP3947856 B1 EP 3947856B1 EP 20719945 A EP20719945 A EP 20719945A EP 3947856 B1 EP3947856 B1 EP 3947856B1
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EP
European Patent Office
Prior art keywords
supporting structure
edge
supports
reinforcement
transverse
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.)
Active
Application number
EP20719945.6A
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German (de)
English (en)
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EP3947856A1 (fr
Inventor
Kai Hollmann
Marco Girardi
Luca Liverani
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Polytech GmbH
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Polytech GmbH
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Publication of EP3947856A1 publication Critical patent/EP3947856A1/fr
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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
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements
    • E04G9/05—Forming boards or similar elements the form surface being of plastics
    • 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
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements
    • E04G2009/023—Forming boards or similar elements with edge protection
    • E04G2009/025—Forming boards or similar elements with edge protection by a flange of the board's frame
    • 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
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements
    • E04G2009/028—Forming boards or similar elements with reinforcing ribs on the underside

Definitions

  • DE 3810613 A1 discloses a profile bar in the manner of a support, which is intended as a component for the frame of formwork panels to be used in concrete construction.
  • This profile bar has, as a central part, a profile body made of plastic, on the top and bottom of which profile pieces made of metal are arranged as reinforcements, which complement the cross section of the profile body and, with the help of internally attached webs, in a force-fitting and/or positive manner in groove-shaped recesses the top and bottom of the profile body are anchored.
  • Support structures in plastic construction for formwork panels are known. Compared to supporting structures made of wood or metal, they have a whole range of advantages: high durability, low weight, low aging, inexpensive Production and cheap recyclability. On the disadvantage side, it should be noted that in order to achieve high strength values, effort is required in the construction, and the practical design of the transition to the formlining is a challenge.
  • edge of the formlining is understood to mean the outline surface of the formlining, extending from the front of the formlining (which is the shaping surface for the concrete) to the back of the formlining.
  • edge of the formlining is not intended to denote the line at which the surface of the front of the formlining intersects with the outline surface of the formlining, and is not intended to describe a line at which a virtual plane is located on the back of the formlining, parallel to the front of the formlining, intersects with the outline surface of the formlining.
  • the invention includes a support structure for a formwork panel according to claim 1, a formwork panel according to claim 10 and a method for producing a support structure according to claim 15. Further embodiments of the invention are given in the dependent claims.
  • the support structure according to the invention has an edge protection for protecting at least part of the edge of the formlining after it has been attached to the support structure.
  • the edge of the formlining is a comparatively sensitive formlining area where damage can occur relatively easily, whether when erecting formwork from formwork panels positioned close together or when handling the formwork panels in rough construction site operations. This sensitivity is particularly pronounced when formwork panels with a plastic support structure are used.
  • the invention creates a support structure with very effective provisions for protecting the edge of the formlining to be attached to the support structure.
  • the protruding area of the edge protection mentioned at the beginning can protrude so far that the outline of the formlining is protected right up to the transition into the front of the formlining.
  • the support structure according to the invention has, in the area of the front sides of the two longitudinal edge supports and/or the two transverse edge supports, and/or in the area of the rear sides of the two longitudinal edge supports and/or the two transverse edge supports, a reinforcement made of a material that is different from the material of the said supports of the support structure.
  • the provision of such reinforcement does indeed complicate the support structure.
  • On the advantage side however, there is an increase in the load capacity of the support structure, which is achieved in a lower weight manner than would be possible, for example, through increased use of plastic material in the support structure.
  • the reinforcement in the area of the front sides of the two longitudinal edge supports and/or the two transverse wheel supports can also be designed as the edge protection described. Or described from a different perspective:
  • the edge protection described can be designed in such a way that it also has the function of reinforcement in the relevant areas of the supporting structure.
  • the support structure according to the invention has an edge protection and / or a reinforcement, which consists of a separately manufactured part or of several separately manufactured parts, which is combined with the support structure main body after its production or . become.
  • edge protection and/or the reinforcement into the relevant area of the main body during the production of the support structure main body.
  • the support structure according to the invention can additionally be characterized in that the edge protection and / or the (relevant) reinforcement contains several strips of material.
  • the expression "the (relevant) reinforcement” was chosen because in the first paragraph of the description two types of reinforcement are mentioned, namely a reinforcement assigned to the front of the support structure (or the front sides of the two longitudinal edge beams and / or the front faces of the two transverse edge beams). , and a reinforcement assigned to the back of the support structure (or the backs of the two longitudinal edge beams and / or the back sides of the two transverse edge beams).
  • the construction of the edge protection and/or the (relevant) reinforcement from strips of material offers the advantage of being inexpensive to produce.
  • the material strips can be used specifically where edge protection and/or reinforcement are most needed.
  • edge protection and/or the (relevant) reinforcement has the shape of a rectangular frame.
  • This edge protection and/or this reinforcement is particularly comprehensive in its function, and the frame can be combined very efficiently with the main body of the supporting structure.
  • edge protection which is also reinforcement for the front of the support structure
  • reinforcement made of several strips of material for the back of the support structure.
  • the support structure according to the invention can additionally be characterized in that the edge protection - seen in a cross-sectional plane perpendicular to the longitudinal extent of the carrier in question - has a first leg essentially parallel to the front of the carrier in question and a second leg, which projects forward from the first leg.
  • This structure optimally brings together the functions of combining the edge protection with the supporting structure main body and protecting the edge of the formlining.
  • the design can be such that the edge protection essentially only contains these two legs or consists of these two legs.
  • the edge protection can have something else, for example a third leg which projects backwards from the first leg.
  • the support structure according to the invention can also be characterized in that the reinforcement in question - seen in a cross-sectional plane perpendicular to the longitudinal extent of the support in question - has a lying rectangular cross-section.
  • the term "lying rectangular cross-section” means that - viewed in the cross-sectional plane mentioned - the cross-section of the reinforcement has a longer dimension measured parallel to the front or back of the main body and a shorter dimension (in most cases a significantly shorter dimension) measured perpendicular thereto . Reinforcements with this geometry are particularly easy to produce and can be combined with the main body.
  • edge protection according to the invention and/or the (relevant) reinforcement according to the invention metal or elements made of long fiber-reinforced plastic are good options.
  • metal steel or light metal (in particular aluminum, aluminum alloys and magnesium) are possible.
  • the edge protection or its parts and/or the reinforcement(s) or their parts can be sheet metal parts.
  • thermoset plastic parts with embedded long fibers e.g. glass fibers, aramid fibers and carbon fibers, are particularly mentioned.
  • reinforcements made of metal can be made as sheet metal parts, the main plane of which is essentially parallel to the front of the main body.
  • the edge protection according to the invention can be designed as a sheet metal part or as several sheet metal parts (each) with a bent edge for the edge protection function.
  • the support structure according to the invention is further characterized in that the edge protection and/or the reinforcement (in question) has holes and the support in question has several extensions on its front and/or back, which each protrude into one of these holes.
  • the row of holes can, but does not have to, be straight; The only important thing here is that several holes are provided along the relevant support for the edge protection or reinforcement.
  • the form-fitting hole/extension interventions effect a shear-resistant anchoring of the edge protection or the reinforcement on the relevant support, so that the edge protection and the relevant support or reinforcement and the relevant support form a unit with regard to the load-carrying capacity of the support structure.
  • shear-resistant means that forces that act parallel to the front of the support structure are transmitted in a form-fitting manner.
  • the support structure according to the invention can further be characterized in that the edge protection and / or the (relevant) reinforcement is at least partially embedded in the plastic material of the relevant support.
  • a typical example of how such an embedding can be produced is set out below in connection with a manufacturing method according to the invention.
  • the embedding can go so far that at least the relevant part of the edge protection or reinforcement is surrounded all around by the plastic material of the relevant carrier. But you can also go less far and, for example, only embed the edge protection or reinforcement in the plastic material of the carrier on three sides and leave a fourth side uncovered by the plastic material. Embedding in the plastic material of the carrier in question can also be combined with the hole/projection intervention described in the previous paragraph.
  • the support structure according to the invention can further be characterized in that its main body has the two longitudinal edge supports, the two transverse edge supports and a plurality of transverse intermediate supports.
  • the design can be such that the main body has no other supports apart from these carriers or no other parts at all. However, the design can also be such that the main body has additional parts, e.g. longitudinal intermediate supports.
  • the main body can be a one-piece plastic part.
  • the main body may be a one-piece injection molded plastic part.
  • the main body can be made of fiber-reinforced plastic, in particular glass-fiber-reinforced plastic.
  • the support structure according to the invention can additionally be characterized in that the two longitudinal edge beams and / or the two transverse edge beams as double walls with two partial walls and with first connecting walls between them, which are extension planes transverse to the longitudinal extension direction of the relevant support have, are trained.
  • the two longitudinal edge beams and/or the two transverse edge beams can be designed as double walls with two partial walls and with a second connecting wall between them on the front of the double wall or with a third connecting wall between them on the back of the double wall.
  • the described double-wall configurations of the two longitudinal edge beams and/or the two transverse edge beams result in a support structure in which the material utilization of the plastic is optimized.
  • the support structure according to the invention can additionally be characterized in that at least a partial number of the transverse intermediate supports have two partial walls which are further spaced apart from one another on the side closer to the front of the support structure than on the side further away from the front of the support structure.
  • a trapezoidal shape or a triangular shape are typical embodiments.
  • the support structure according to the invention can additionally be characterized in that at least a partial number of the transverse intermediate supports - measured at right angles to the front of the support structure - is less high than the support structure and at the distance from the front of the support structure Side ends at a distance from the back of the supporting structure.
  • at least a partial number of the transverse intermediate beams only takes up part of the height of the supporting structure.
  • the support structure according to the invention can also be characterized in that on its front there is a support plane for the formlining, to which support plane there are areas on the front sides of the two longitudinal edge beams, areas on the front sides of the two transverse edge beams and areas on the front sides of the transverse intermediate beams contribute.
  • the formlining is supported by the longitudinal edge beams, the transverse edge beams and the relevant transverse intermediate beams, so that formlining support can be achieved with relatively small support distances.
  • a further object of the invention is a formwork panel, characterized in that it has a support structure according to the invention, as disclosed in the previous part of the description, and a formlining positioned on the front of the support structure and attached to the support structure.
  • the formlining can be made of plastic.
  • the formwork panel according to the invention can further be characterized in that the edge protection and / or the reinforcement provided in the area of the front sides of the relevant supports is positioned in a sandwich-like manner between the relevant supports of the support structure and the formlining and that by attaching the formlining to the support structure at the same time an attachment of the Edge protection and / or reinforcement is formed on the support structure.
  • This is a particularly rational way of integrating the edge protection and/or the relevant reinforcement into the formwork panel.
  • the formlining can have clip extensions formed on its back, with which it is attached to the support structure.
  • the formlining can have extensions formed on its back and the formlining can be attached to the support structure by means of screws which are screwed into at least a partial number of these extensions from the back of the support structure.
  • Screw in means that the screw in question sits positively in the material of the supporting structure. It can be self-tapping screws. If you work with screws to fasten the formlining to the support structure, it is a possibility according to the invention that at least a partial number of these screws each go through a hole in the reinforcement provided in the area of the back of the support in question, whereby this reinforcement is attached to the support structure.
  • each screw can serve both to fasten the edge protection and/or the reinforcement provided in the area of the front sides of the relevant supports as well as to fasten the reinforcement provided in the area of the rear sides of the relevant supports
  • the invention does not include a method for producing a support structure according to the invention, as has been disclosed in the previous part of the description, characterized in that the edge protection is at least partially positioned and / or the reinforcement is at least partially positioned in an injection mold and during injection molding Support structure is at least partially embedded in the plastic of the support structure by overmolding.
  • "Overmolding” refers to a method of production in which plastic, particularly during injection molding, embeds a part that has previously been inserted into the injection mold - at least on one side - in such a way that a uniform component is created in close connection between the two components.
  • edge protection collectively refers to the several components that together form the edge protection (if the edge protection consists of several components). The same applies accordingly to the reinforcement provided in the area of the front sides of the relevant supports and to that in the area reinforcement provided on the backs of the supports in question (if they consist of several components).
  • Support structure 2 shown has a main body 4 made of plastic and an edge protection 12 made of metal to protect the edge of a Support structure 2 formlining to be attached (see Fig. 10-16 ) on.
  • the main body 4 is rectangular overall in plan view.
  • the edge protection 12 has the shape of a rectangular frame when viewed from above.
  • the main body 2 has two longitudinal edge supports 6, two transverse edge supports 8 and, in this exemplary embodiment, a total of seven transverse intermediate supports 10.
  • the main body 4 is a one-piece injection molded part made of plastic.
  • the transverse edge beams 8 lie at right angles to the longitudinal edge beams 6 and are approximately half as long as the longitudinal edge beams 6.
  • the transverse intermediate beams 10 run parallel to the transverse edge beams 8.
  • the longitudinal edge beams 6 have a length of slightly less than 2 m - measured on the outside over everything and the transverse edge supports 8 have a length of just under 1 m - measured on the outside - of slightly less than 1 m.
  • Other formats of the main body 4 are possible. Further geometric details of the supports 6, 8, 10 are described below.
  • the edge protection 12 can be seen in more detail in the Fig. 2 , 3, 4 .
  • the edge protection 12 is in one piece and has the shape of a rectangular frame with a large free interior space, the four sections 14 of the edge protection 12, each adjoining one another at the corner, each having a width 16 - measured transversely to the longitudinal extent of the section 14.
  • the width 16 is so large that the relevant section 14 almost completely covers the width of the associated longitudinal edge support 6 or the width of the associated transverse edge support 8. Further details on this are described below.
  • the relevant section 14 of edge protection 12 has the shape of a lying rectangle with a bent-up, lateral edge 18 along the relevant outer edge of the support structure 2.
  • the in the 3 and 4 Vertically measured thickness 20 of the cross-sectional rectangle is small compared to the width 16.
  • each of the four sections 14 of the edge protection 12 has a series of, for example, round holes 22 along its outer edge.
  • each longitudinal edge support 6 and each transverse edge support 8 has a row of short extensions 24, which are circular in plan view. The positioning and size of the extensions 24 are coordinated with the holes 22 of the edge protection 12.
  • the extensions 24 When joining the main body 4 and the edge protection 12, the extensions 24 each go into one of the holes 22, as is best done in Fig. 3 sees.
  • This multiple hole 22/extension 24 engagement creates an overall positive fixation of the edge protection 12 with the front 80 of the main body 4, this positive connection being effective with regard to forces that act parallel to the front of the main body 4.
  • Each of the four sections 14 of the edge protection 12 has a series of holes 16 which are rectangular in plan view.
  • the holes 26 are positioned along the inner edge of the edge protection 12. In total, in this exemplary embodiment there are nine holes 26 along each longitudinal edge support 6 and five holes 26 along each transverse edge support 8.
  • each of the transverse edge beams 8 looks the same in a section at right angles to its longitudinal extent.
  • the cross-sectional shape of the edge supports 6 and 8 can be described as a double wall with two partial walls 28 and 30 which extend between the front and the back of the main body 4.
  • the two partial walls 28 and 30 are connected to one another by a third connecting wall 32 lying parallel to the front side 80 of the main body 4.
  • each longitudinal edge support 6 and each transverse edge support 8 has a flange 34 directed outwards (ie directed away from the center of the main body 4).
  • the extensions 24 described are provided on the front of the flange 34.
  • the edge protection 12 rests with its first leg 36, which is parallel to the front side 80 of the main body 4, on the front side of the flange 34 and covers the space between the two partial walls 28 and 30.
  • the first leg 36 ends on the outward-facing side of the inner partial wall 30, but could also rest on the front side of the inner partial wall 30.
  • the transition from the first leg 36 into the second leg 37 is a curve with a relatively small bending radius.
  • first connecting walls 38 In Fig. 6 one can see that in the longitudinal edge beams 6 and in the transverse edge beams 8 the two partial walls 28 and 30 are connected to one another by a series of spaced, first connecting walls 38.
  • the first connecting walls 38 each have an extension plane which lies at right angles transversely to the longitudinal extension direction of the relevant support 6 or 8.
  • the rectangular holes 26 of the edge protection 12 are positioned so that they lie in front of the free space between the two partial walls 28 and 30.
  • Holes 40 are provided in the third connecting wall 32, each at a position aligned with the position of a rectangular hole 26. The function of the pairs of holes 26 and 40 is described below.
  • the 5 and 6 show the main body 4 without the edge protection 12, so that you can see into the space between the two partial walls 28 and 30 at the longitudinal edge walls 6 and the transverse edge walls 8.
  • FIGS. 10, 11 , 14 , 15 , 16 , 17 , 19 , 20 , 21 , 22, 23 show a formwork panel 50 as it was produced by attaching a formlining 52 to the previously described support structure 2 or to the support structure 2 yet to be described in the second to fifth embodiments.
  • the formlining 52 is made of plastic and has the shape of a plate with extensions 60 to be described below on its inside Fig. 10 downward facing back. This plate has a small thickness of a few centimeters compared to its plan view size of essentially 2 x 1 m.
  • the formlining 52 has such a top view size that it fits tightly onto and into the edge protection 12, with an edge region 54 of the formlining 52 resting all around on the first leg 36 of the edge protection 12 and the front end of the inner partial wall 30 and with the edge 56 of the Formlining 52 all around the second leg 37 or bent edge 18 of the edge protection 12 is bordered.
  • the second leg 37 of the edge protection 12 projects so far forward from the front of the relevant longitudinal edge beam 6 or transverse edge beam 8 that the edge 56 of the formlining 52 is just completely covered.
  • the upward-facing front of the formlining 52 lies in the same plane as that in 10 and 11 upper end of the second leg 37 of the edge protection 12.
  • the already mentioned rear extensions 60 of the formlining 52 are positioned and dimensioned so that they each fit into one of the described holes 26 of the edge protection 12.
  • the shape of the extensions 60 is best seen on the Fig. 11 and 13 .
  • the relevant extension 60 is cylindrical on the outside with two small stiffening ribs.
  • the extension 60 in question is hollow on the inside for at least part of its length.
  • For each pair of extension 60 and hole 40 in the third connecting wall 32 of the two partial walls 28 and 30 of the relevant longitudinal edge support 6 or transverse edge support 8 is from the in Fig.
  • a screw 62 is screwed in on the lower back 82 of the support structure 2 or the formwork panel 50. With her in 10 and 11 In the upper end region, the screw 62 is screwed into a cavity 59 of the associated extension 60 and is thus positively connected to the inner circumference of the cavity 59. The head 64 of the screw 62 sits at the rear end of the relevant hole 40 in the third connecting wall 32. The screws 62 thus pull the formlining 52 with the flat part of its back against the first leg 36 of the edge protection 12, the inner partial wall 30 of the edge supports 6 and 8, and, as will be described in more detail below, the front sides of the transverse intermediate supports 10. As a result, the edge protection 12 is clamped in exactly the same position between the main body 4 and the formlining 52.
  • the transverse intermediate supports 10 - seen in a section transverse to their longitudinal extent - have a cross section in the form of an open trapezoid.
  • the open, larger trapezoid side is located on the front 80 of the main body 4.
  • the shorter, closed trapezoid side 67 is located approximately halfway between the front 80 and the back 82 of the main body 4.
  • On the open trapezoid side there is one on the left and one on the right narrow flange 68, which extends in the direction of length of the main body 4 protrudes (see Fig. 2 ).
  • Each transverse intermediate beam 10 has four connecting walls 70 distributed over its length.
  • each transverse intermediate support 10 - measured in the longitudinal direction of the main body 4 - is essentially the same size as the clear distance between two adjacent transverse intermediate supports 10 or between the last transverse intermediate support 10 and the relevant transverse edge support 8.
  • the front sides of the flange 68 lie in the same plane such as the front of the first leg 36 of the edge protection 12 and the front end of the inner partial wall 30 of the edge supports 6 and 8. All of this together is located in a common plane, which serves as a support plane or in total as a support surface for the formlining 52.
  • the exploded view of the Fig. 14 shows again how the components main body 4, edge protection 12, formlining 50 are put together using the screws 62.
  • the Fig. 15 and 16 illustrate the formwork panel 50 in the fully assembled state.
  • the second embodiment of the 17 and 18 differs from the exemplary embodiment described so far in that the two partial walls 28 and 30 of the longitudinal edge supports 6 and the transverse edge supports 8 on the front of the double wall are connected by a second connecting wall 72, which is parallel to the front 80 of the main body 4.
  • a third connecting wall 32 as was present in the first exemplary embodiment, is not present in the second exemplary embodiment.
  • the extensions 60 are designed as clip extensions 60 on the back of the formlining 52. Instead of the rectangular holes 26, round holes 74 are provided in the edge protection 12.
  • the formlining 52 is connected to the support structure 4 in a less labor-intensive manner in that its clip extensions 72 are inserted through the described holes 74 in the edge protection 12 and through holes 76 aligned therewith in the relevant second connecting wall 72. When fully inserted, the end regions of the clip extensions 60 diverge elastically and snap into place behind the back of the second connecting wall 72 in question.
  • the width 16 of the edge protection 12 is smaller than in the previous embodiments.
  • the edge protection 12 no longer extends over the free space between the two partial walls 28 and 30 of the relevant longitudinal edge support 6 or transverse edge support 8.
  • each edge support 6 or 8 is on the back a third connecting wall 32 is provided, but no second connecting wall 72, as was present in the second exemplary embodiment.
  • the rear extensions 60 of the formlining 50 are designed so that they fit tightly into the free space between the two walls 28 and 30 of the edge beam 6 and 8 in question.
  • screws 62 extend from the back of the main body 4 into a cavity 59 of an extension 60.
  • the fourth exemplary embodiment shown differs from the first exemplary embodiment in that a reinforcement 84 is provided in the area of the rear sides of the longitudinal edge supports 6.
  • the reinforcement 84 includes two strip-shaped elements 86 made of metal.
  • the strip-shaped elements 86 are each punched out of sheet metal.
  • the strip-shaped elements 86 are each as long as the longitudinal edge supports 6 on their back.
  • the strip-shaped elements 86 each have a row of 39 holes 22.
  • a rear extension 24 of the relevant longitudinal edge support 6 protrudes into 30 of these holes 22, as has been described in the first exemplary embodiment for the front 80 of the support structure 2.
  • the holes 22 are located approximately in the middle of the width 16 of the strip-shaped element 86 in question.
  • a screw 62 passes through the remaining 9 holes 22, which are distributed over the length of the relevant strip-shaped element 86.
  • a hole 88 is provided in the third connecting wall 32 at points that are aligned with these holes 22 for screws 62.
  • the screw head 64 of each of these screws 62 is located on the back of the relevant strip-shaped element 86. The screws 62 thus pull the formlining 50, the edge protection 12, the main body 4 and the strip-shaped elements 86 of the reinforcement 84 together as a sandwich.
  • FIG. 22 and 23 A front edge protection 12 and a rear reinforcement of the support structure 2 are provided.
  • This exemplary embodiment differs from the previously described exemplary embodiments primarily in that the edge protection 12 and the reinforcement 84 have been combined with the main body 4 of the support structure 2 by so-called overmolding.
  • four angle rail-like metal parts 90 which adjoin one another at the corner to form the edge protection 12, are positioned in an injection mold in such a way that essentially only the relevant second leg 37 of the edge protection 12 was not inside the mold cavity of the injection mold.
  • the four angle rail-like parts 90 each have a miter bevel at their two ends, so that the second legs 37 of these parts as a whole form a protruding edge to protect the edge 56 of the formlining 50.
  • both the angle rail-shaped parts 90 and the strip-shaped elements 86 each distributed over the length, have several holes 92.
  • these parts were placed on stepped positioning pins, one pin per hole 92.
  • the edge protection 12 also forms a reinforcement in the area of the front sides of the two longitudinal edge supports 6 and the two transverse edge supports 8.
  • the invention also creates a support structure 2 in which there is no edge protection 12, but only on the front side and/or rear reinforcement of the support structure 2 or the longitudinal edge support 6 and/or the transverse edge support 8 is provided.
  • the edge protection 12 two or four strip-shaped elements are provided, which are designed similarly to the described strip-shaped elements 86 on the back or which are designed similarly to the edge protection 12, but without a protruding edge 18.
  • edge protection 12 does not necessarily have to cover the two longitudinal edges of the formlining 50 and the two transverse edges of the formlining 50.
  • edge protection 12 may be sufficient to provide edge protection only on these edges.
  • the reinforcement 84 which in the exemplary embodiments described was only provided in the area of the longitudinal edge supports 6, is also "all around", i.e. both on the longitudinal edge supports 6 (front and/or back) and on the transverse edge supports 8 ( front and/or back).
  • the particularly metallic edge protection represents the most externally protruding area of the support structure 2 or the formwork panel 50 and thus provides particularly effective protection for the edge 56 of the formlining 50.
  • the front reinforcement and / or the rear reinforcement 84 can be through Parts can be formed, the dimension of which - measured at right angles to the front of the support structure 2 - is smaller than the dimension measured in the direction parallel to the front of the support structure 2.
  • the front reinforcement and/or the rear reinforcement 84 can be applied to the area of the front of the support structure (or the front of the two longitudinal edge supports and/or the two transverse edge supports) and/or to the area of the rear of the support structure 2 (or the area of the Back of the two longitudinal edge beams and / or the two transverse edge beams) be concentrated so that they optimally provide an increase in the strength of the support structure 2.
  • the described reinforcement 84 in the area of the back of the longitudinal edge beam 6 reinforces both the outside of the outer partial wall 28 in its rear end region and the rear end of the double wall of the longitudinal edge beam 6, which increases the stability against damage in these two areas.
  • edge protection 12 and/or the reinforcement 84 from long fiber reinforced plastic instead of sheet metal, these parts will look quite similar to the sheet metal parts shown, perhaps with small roundings instead of sharp corners and slightly thicker in the perpendicular to the front 80 of the support structure 2 measured dimension.

Claims (14)

  1. Structure porteuse (2) en matière plastique pour un panneau de coffrage (50), qui comprend la structure porteuse (2) et une peau coffrante (52) positionnée sur la face avant (80) de la structure porteuse (2) et fixée à la structure porteuse (2),
    la structure porteuse (2) comportant un corps principal (4) en matière plastique avec deux supports de bord longitudinal (6) et deux supports de bord transversal (8) et, dans la zone des faces avant des deux supports de bord longitudinal (6) et/ou des deux supports de bord transversal (8), une protection de bord (12) destinée à protéger au moins une partie du bord de la peau coffrante (52) après sa mise en place sur la structure porteuse (2), la protection de bord (12) étant réalisée dans un matériau différent de celui desdits supports de la structure porteuse (2) et comportant une partie (37) faisant saillie vers l'avant à partir desdits supports (6 ; 8) ; et/ou
    la structure porteuse (2) comportant un corps principal (4) en matière plastique avec deux supports de bord longitudinal (6) et deux supports de bord transversal (8) et, dans la zone des faces avant des deux supports de bord longitudinal (6) et/ou des deux supports de bord transversal (8), et/ou dans la zone des faces arrière des deux supports de bord longitudinal (6) et/ou des deux supports de bord transversal (8), un renforcement (84) en un matériau différent du matériau desdits supports (6 ; 8) de la structure porteuse (2),
    caractérisé en ce que les faces avant des supports de bord pourvues de la protection de bord (12) et/ou du renforcement (84) et/ou les faces arrière des supports de bord pourvues du renforcement (84) comportent chacune une série de prolongements (24) faisant saillie à partir de la face avant ou arrière respectif et pénétrant dans des trous (22) de la protection de bord (12) ou du renforcement (84), respectivement.
  2. Structure porteuse (2) selon la revendication 1, caractérisée en ce que la protection de bord (12) et/ou le renforcement (84) respectif comportent une pluralité de bandes de matériau ou bien ont la forme d'un cadre rectangulaire.
  3. Structure porteuse (2) selon la revendication 1 ou 2, caractérisée en ce que la protection de bord (12) - vue dans un plan de coupe transversale perpendiculaire à l'extension longitudinale du support (6 ; 8) respectif - comporte une première branche (36) sensiblement parallèle à la face avant du support (6 ; 8) respective et une seconde branche (37) qui fait saillie vers l'avant à partir de la première branche (36).
  4. Structure porteuse (2) selon l'une des revendications 1 à 3, caractérisée en ce que le renforcement (84) concerné, vu dans un plan de coupe transversale perpendiculaire à l'extension longitudinale du support (6 ; 8) concerné, présente une section transversale rectangulaire horizontale, la dimension la plus longue de la section transversale rectangulaire étant parallèle à la face avant (80) ou à la face arrière (82) du corps principal (4) de la structure de support (2).
  5. Structure porteuse (2) selon l'une des revendications 1 à 4, caractérisée en ce que la protection de bord (12) et/ou le renforcement (84) concerné sont réalisés en métal ou en matière plastique renforcée de fibres longues.
  6. Structure porteuse (2) selon l'une des revendications 1 à 5, caractérisée en ce que la protection de bord (12) et/ou le renforcement (84) (concerné) est au moins en partie noyé dans la matière plastique du support (6 ; 8) concerné.
  7. Structure porteuse (2) selon l'une des revendications 1 à 6, caractérisée en ce que son corps principal (4) comprend les deux supports de bord longitudinal (6), les deux supports de bord transversal (8) et une pluralité de supports intermédiaires transversaux (10), de préférence au moins un nombre partiel de supports intermédiaires transversaux (10) comprenant deux parois partielles qui sont plus espacées l'une de l'autre sur la face la plus proche de la face avant (80) de la structure porteuse (2) que sur la face la plus éloignée de la face avant (80) de la structure porteuse (2).
  8. Structure porteuse (2) selon l'une des revendications 1 à 7, caractérisée en ce que son corps principal (4) est une pièce monobloc en matière plastique.
  9. Structure porteuse (2) selon l'une des revendications 1 à 8, caractérisée en ce que les deux supports de bord longitudinal (6) et/ou les deux supports de bord transversal (8) sont conçues comme des parois doubles avec deux parois partielles (28, 30) et avec des premières parois de liaison (38) entre elles, qui présentent des plans d'extension transversaux à la direction d'extension longitudinale du support respectif (6 ; 8) ; et/ou en ce que les deux supports de bord longitudinal (6) et/ou les deux supports de bord transversal (8) sont conçues comme des parois doubles avec deux parois partielles (28 ; 30) et avec une seconde paroi de liaison (72) entre elles sur la face avant de la paroi double ou avec une troisième paroi de liaison (32) entre elles sur la face arrière de la paroi double.
  10. Panneau de coffrage (50), caractérisé en ce qu'il comporte la structure porteuse (2) selon l'une des revendications 1 à 9 et une peau coffrante (52), de préférence en matière plastique, positionnée sur la face avant (80) de la structure porteuse (2) et fixée à la structure porteuse (2).
  11. Panneau de coffrage (50) selon la revendication 10, caractérisé en ce que la protection de bord (12) et/ou le renforcement (84) prévu dans la zone des faces avant des supports (6 ; 8) respectifs est positionné en sandwich entre les faces avant des supports (6 ; 8) respectifs de la structure porteuse (2) et la peau coffrante (32), et en ce que la fixation de la peau coffrante (52) sur la structure porteuse (2) forme en même temps une fixation de la protection de bord (12) et/ou du renforcement (84) sur le panneau de coffrage (50).
  12. Panneau de coffrage (50) selon la revendication 10 ou 11, caractérisé en ce que la peau coffrante (52) présente des prolongements de clips (60) formés sur sa face arrière, au moyen desquels elle est fixée à la structure porteuse (2).
  13. Panneau de coffrage (50) selon l'une des revendications 10 à 12, caractérisé en ce que la peau coffrante (52) présente des prolongements de clips (60) formés sur sa face arrière ; et en ce que la peau coffrante (52) est fixée à la structure porteuse (2) au moyen de vis (62) qui sont vissées, depuis la face arrière de la structure porteuse (2), dans au moins une partie de ces prolongements (60), de préférence au moins un nombre partiel de ces vis (62) passant chacune à travers un trou (40) du renforcement (84) prévu au niveau des faces arrière des supports (6 ; 8) respectifs, ce qui permet de fixer ce renforcement (84) au panneau de coffrage (50).
  14. Panneau de coffrage (50), caractérisé en ce qu'il comprend la structure porteuse (2) selon la revendication 9 et une peau coffrante (52), de préférence en matière plastique, positionnée sur la face avant (80) de la structure porteuse (2) et fixée à la structure porteuse (2) ;
    que la peau coffrante (52) présente des prolongements de clips (60) formés sur sa face arrière, au moyen desquels elle est fixée à la structure porteuse (2), ou présente des prolongements de clips (60) formés sur sa face arrière ; la peau coffrante (52) étant fixée à la structure porteuse (2) au moyen de vis (62) qui sont vissées, depuis la face arrière de la structure porteuse (2), dans au moins une partie de ces prolongements (60) et, de préférence, au moins un nombre partiel de ces vis (62) passant chacune à travers un trou (40) du renforcement (84) prévu au niveau des faces arrière des supports (6 ; 8) respectifs, ce qui permet de fixer ce renforcement (84) au panneau de coffrage (50) ;
    que lesdits prolongements de clips (60) ou lesdits prolongements vissés (60) de la peau coffrante (52) font saillie dans l'espace entre les deux parois partielles (28, 30) de la double paroi de support respective ;
    et en ce que la protection de bord (12) et/ou le renforcement (84) prévu dans la zone des faces avant des supports (6 ; 8) respectifs est positionné en sandwich entre les faces avant des supports (6 ; 8) respectifs de la structure porteuse (2) et la peau coffrante (32) et est serré entre le corps principal (4) de la structure porteuse (2) et la peau coffrante (52) fixée à la structure porteuse (2).
EP20719945.6A 2019-04-01 2020-03-31 Structure porteuse construite en matière synthétique pour un panneau de coffrage Active EP3947856B1 (fr)

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DE102019002356.0A DE102019002356A1 (de) 2019-04-01 2019-04-01 Tragstruktur in Kunststoffbauweise für Schalungspaneel
PCT/EP2020/059109 WO2020201278A1 (fr) 2019-04-01 2020-03-31 Structure porteuse construite en matière synthétique pour un panneau de coffrage

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DE3810613A1 (de) * 1988-03-29 1989-10-19 Huennebeck Roero Gmbh Profilstab
DE19724701A1 (de) * 1996-06-26 1998-01-02 Gerhard Dingler Bauelement und Verfahren zur Herstellung eines Bauelementes
IT1315769B1 (it) * 2000-12-13 2003-03-18 E M As Srl Elementi modulari per la realizzazione di casseforme
CN2499493Y (zh) * 2001-10-10 2002-07-10 陈广振 建筑施工用组合塑钢模板
KR100469849B1 (ko) * 2002-09-04 2005-02-02 주식회사 삼우공간건축사사무소 보강 구조를 가지는 유로폼 타입 거푸집 및 그 제조방법
DE102009036647A1 (de) * 2009-08-07 2011-02-17 Hofin Gmbh Betonierungs-Schaltafel
DE102013107303A1 (de) * 2013-07-10 2015-01-15 Polytech Gmbh Schaltafel für Betonierungsschalungen
DE102015223764A1 (de) * 2015-11-30 2017-06-01 Peri Gmbh Schalelement und Deckenschalung mit einem solchen Schalelement
CN105735632A (zh) * 2016-02-25 2016-07-06 中国建筑股份有限公司 一种多次周转使用的带框塑料模板及其施工方法
CN206428964U (zh) * 2017-01-04 2017-08-22 广州市艺达机械有限公司 一种建筑用组合型铝模板装置
CN108316643A (zh) * 2018-03-22 2018-07-24 浙江谊科建筑技术发展有限公司 一种啮合型组合铝模板

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WO2020201278A1 (fr) 2020-10-08
DE102019002356A1 (de) 2020-10-01
CN113906187A (zh) 2022-01-07
US20220049508A1 (en) 2022-02-17
EP3947856A1 (fr) 2022-02-09

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