EP0906482B1 - Element de construction et son procede de fabrication - Google Patents

Element de construction et son procede de fabrication Download PDF

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Publication number
EP0906482B1
EP0906482B1 EP97929237A EP97929237A EP0906482B1 EP 0906482 B1 EP0906482 B1 EP 0906482B1 EP 97929237 A EP97929237 A EP 97929237A EP 97929237 A EP97929237 A EP 97929237A EP 0906482 B1 EP0906482 B1 EP 0906482B1
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EP
European Patent Office
Prior art keywords
structural member
member according
profile
frame
beam profile
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.)
Expired - Lifetime
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EP97929237A
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German (de)
English (en)
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EP0906482A1 (fr
Inventor
Gerhard Dingler
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Individual
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Individual
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Publication date
Priority claimed from DE19724701A external-priority patent/DE19724701A1/de
Application filed by Individual filed Critical Individual
Publication of EP0906482A1 publication Critical patent/EP0906482A1/fr
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Publication of EP0906482B1 publication Critical patent/EP0906482B1/fr
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • 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
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/15—Scaffolds primarily resting on the ground essentially comprising special means for supporting or forming platforms; Platforms
    • E04G1/153—Platforms made of plastics, with or without reinforcement

Definitions

  • the invention relates to a component according to the preamble of claim 1 and a method for producing a component according to the preamble of Claim 60.
  • EP 0 353 637 A1 describes a formwork panel with a formwork panel made of plastic for system formwork for concrete formwork.
  • This Formwork panel has a profile frame formed from hollow profile frame legs on.
  • One made of PVC granulate, foamed using a foamable plastic Formwork panel is attached to the profile frame by, for example, gluing or attached in a conventional manner by riveting or screwing.
  • This formwork panel has the disadvantage that foaming of the PVC granulate is required which requires the addition of binders. Beyond that the time portion for a complete foaming considerably. It also requires a complex assembly of the formwork panel on the profile frame.
  • scaffolding coverings have also become known. which are used in work scaffolds. These have a work surface that is made of wood. These work surfaces face at least on the narrow sides two hook elements, with which the scaffolding coverings on the scaffolding to be assembled.
  • the wooden work surfaces have the well-known disadvantages on.
  • the object of the invention is therefore to create a component, which enables a simplification in production and still the Operations can absorb the corresponding loads and the previous one Construction largely corresponds.
  • the invention is also based on the object of a method for the production to create a component that allows the inventive Manufacture component quickly and inexpensively.
  • the inventive design of a component as an injection molded part has the advantage that a shorter working time is required for its production is, whereby high wage and ancillary wage costs can be saved.
  • the component also has the advantage that the work surface or Formwork sheet due to the use of a polymer material without splinters and can be made insensitive to impact. This can maintain the load-bearing capacity stay.
  • the use of polymer materials for the element also leads to the fact that a long service life can be given.
  • the polymeric materials are opposite Wood, or a multi-layer wood panel, weatherproof and lighter to clean.
  • a steam jet cleaner can easily and the formwork sheet can be cleaned quickly. This is relatively thin and has almost no thermal inertia. This leads to, for example, spraying the formwork panel with a steam jet cleaner occur between the concrete layer and the plastic, so that the concrete layer jumps off the formwork panel and the connection is released immediately.
  • the use of Suitable polymer materials for the component lead to less adhesion cement glue and therefore the use of release agents can be dispensed with.
  • such a component designed as an injection molded part has the advantage that, compared to the components known hitherto, consisting of a metal profile frame and a multilayer board made of high-quality plywood, a further weight reduction of 10 to 20% can be achieved with the same dimensions. This allows even more manageable work and thus quick work.
  • This reduction in weight advantageously has no loss in a concrete pressure or load to be absorbed, so that, just as in the known construction of the components with a metal profile frame, for example in the case of formwork elements, a concrete pressure of up to 60 kN / m 2 can be absorbed.
  • the Profile frame is formed by frame legs, which at least partially with Plastic molded carrier profiles exist. It can thereby be achieved that several elements for wall formwork can be securely connected. Furthermore, these support profiles can increase the rigidity of the elements cause so that the element is torsionally stiff and robust for construction site use is trained. In particular, the free ends of the profile frame are through Support profiles are less sensitive to impact than an impact-resistant polymer material educated.
  • these support profiles have the advantage that they are used for Slab formwork on a drop head or column head as well as main and / or secondary beams can be hung.
  • This advantageously made of an aluminum alloy trained carrier profiles also have the advantage that the element is insensitive to creep.
  • the polymer materials generally have one very high creep index and can hardly reduce creep stresses.
  • Metals and synthetic resins have a very low creep index, so that even after one prolonged and high stress due to the preferred reinforcement by the Support profiles is given, creep can be almost prevented. So are high-performance elements designed that almost no delay - even after a long time Use - have.
  • the design of a profile frame with a support profile can be completely recyclable. It can Items that require repair due to the use of a thermoplastic Polymer material no longer seems worthwhile to be recycled.
  • the Beam profiles are operated as electrical resistance, which makes them very heat up strongly and the plastic can be detached from the carrier profiles. This separation process can make up about 90% of the proportions of the carrier profile be removed from the plastic. Then the plastic and also the only parts of the carrier profile contained therein are shredded and ground so that after reprocessing this waste it can be reused for an element or other metal-plastic components for use in the construction industry, such as for formwork panels in slab formwork.
  • the Support profiles extend along side surfaces of the profile frame and with at least a connecting element such as a corner connecting element are interconnectable to form a support profile frame.
  • a connecting element such as a corner connecting element
  • the support profiles are pre-fixed to each other and arranged securely in an injection mold be so that due to the high injection pressures a position shift within the Tool can be avoided.
  • this corner connection can be achieved be that the rigidity of the profile frame can be increased, which in turn the connection rigidity and the absorption of the concrete pressure can be increased can.
  • the frame leg comprises a partially overmolded carrier profile, which has a free contact surface arranged at an angle to the vertical axis of the frame leg and a further, not overmolded, internal one at the free end of the frame leg Contact surface and a non-molded foot extending along the vertical axis.
  • the remaining sections of the carrier profile are essentially extrusion-coated.
  • These non-overmolded contact surfaces serve to arrange a switch lock in order to connect one or more elements to one another.
  • a claw of the formwork lock can engage on the contact surface arranged at an angle to the vertical axis of the frame leg.
  • the further inward-facing contact surface at the end of the frame leg can serve to create a projection in the root area of the claws.
  • the foot which extends freely along the vertical axis of the frame leg, enables the formwork lock to be braced towards the first contact surface, so that alignment of the two elements is made possible.
  • This configuration of the non-overmolded contact surfaces advantageously enables a 5-point contact of the formwork lock, as a result of which the concrete pressure can be absorbed up to 60 kN / m 2 . At least one 3-point system is ensured so that the elements can be aligned and aligned.
  • the invention is for the formation of a profile frame of an element a support profile is provided for wall and ceiling formwork, which the Stiffened profile frame and a secure by a lower L-shaped foot Allows attachment to main and secondary beams, drop heads or support heads. At the same time there is an insensitive closure through the lower foot.
  • the carrier profile has the advantage that at the upper vertical section of the An end portion is provided which can be designed such that this End portion forms a tight seal in an injection mold, so that the adjoining upper part of the carrier profile at least partially overmolded can be.
  • a claw connects to the end section in the upper section of the support profile.
  • the left and right of the system level extending webs, profile webs, V-shaped Crosspieces and the end section each in a parallel to the system level End plane and each have a contact surface or support surface in the injection mold form. This can make it possible that the carrier profiles in the injection molding tool maintain their position during the spraying process and not under the influence can experience disorientation due to the high spray pressure.
  • the element is preloaded which largely neutralizes itself under the intended load. This leaves enough reserves for the elements to meet the required Demonstrate safety and strength in limit loads.
  • the carrier profiles are advantageously plastic during the encapsulation with plastic and / or positioned pre-deformed elastically in the tool.
  • the support profiles plastically preferably in the direction the vertical axis are preformed and then individually or as a frame in the tool can be inserted.
  • the carrier profile or the one thereby composite frames are positioned undeformed in the tool and deformed via a tool control before and / or during the spraying process become.
  • an element can be formed which has a center of the area the formwork panel, which at least partially increases relative to the edge zones is.
  • other dome-shaped or curved designs of the Formwork panel provided according to the specific application and application be.
  • the advantageous embodiments also apply, for example for a scaffold covering, a work platform to which brackets can be attached or for further components that build on the component according to the invention or tie in with it.
  • the method according to the invention for producing an element for wall and ceiling formwork has the advantage that a complex pretreatment and subsequent Coating the profile frame can be saved. Furthermore can produce a significant number by producing the element in one injection molding process saved from work steps such. B. attaching a silicone gasket in the formwork frame to accommodate a multi-layer panel. This can cause a considerable savings can be made. At the same time, the production rate can be significantly increased by the production of the element as an injection molded part.
  • a Prefabricated formwork panel which is preferably a sandwich structure with stiffeners has, is inserted into the injection mold. This allows the injection molding process be shortened, while at the same time by overmolding the inserted parts, such as a formwork panel and a support profile frame, a firm connection to a one-piece element is possible.
  • the formwork element 12 has a scarf height of 160 cm and a width of 80 cm.
  • the Scarf elements 13 are designed as a small version with a scarf height of 160 cm and a width of 40 cm.
  • the formwork element 12 has a profile frame 14 which revolves around the outside and has a vertical central web 16. In the fields between extend the vertical frame legs of the profile frame 14 and the central web 16 horizontal crossbars 17 at an even distance. In between the central web 16 and the cross webs 17 enclosed fields is a ribbing 18 provided, which are formed by two ribs lying in the diagonal of the fields is. Other configurations that allow the fields to be stiffened, are also conceivable. For example, the height of the ribbing from the center of the surface remove the formwork panel 22 from the outside.
  • the adjacent vertical frame legs of the profile frame 14 of the Formwork elements 12, 13 are connected to formlocks 19, of which here, for example four are used.
  • the formwork element 13 has an outer circumferential Profile frame 14 on. Between the vertical frame legs of the profile frame 14 are transverse webs 17 which are arranged at a regular distance from one another are. A ribbing 18 is also provided between the crossbars 17, which is designed analogously to the formwork element 12.
  • the profile frame 14 of the formwork elements 12, 13 have an analog structure made of the same material with the same Cross section on.
  • the formwork element 12 is with the formwork element 13 by means of form locks 19 connected. These engage on the frame legs of the profile frame 14 and define the two adjacent profile frames 14 to each other.
  • the formwork elements 12, 13 can be arranged horizontally and / or vertically to one another.
  • FIG. 2 shows a schematic partial cross section along the line II-II in FIG. 1.
  • the formwork panel 12 is shown as an injection molded part and has a frame leg 23 of the profile frame 14, which is formed from a partially extruded carrier profile 27 is.
  • the frame leg 23 is arranged substantially perpendicular to the formwork plate 22.
  • a front side 24 of the formwork plate 22, against which concrete rests during concreting the ribs 18 are arranged in order to allow a rigid construction of the formwork plate 22.
  • the ribs 18 run diagonally to the left into a corner region 26.
  • the frame leg 23 has one along a cross-sectional area of the carrier profile 27 a system level 28.
  • the carrier profile 27 has a lower section 29 which is not overmoulded with plastic and an upper section overmolded with plastic 31 on.
  • the lower section 29 is formed by an L-shaped foot 32, whose horizontal section 33 faces the center of the formwork element 12.
  • This L-shaped foot 32 is used for the secure arrangement and support of the formwork element 12 Main and secondary girders of a scaffold for slab formwork. Furthermore serves the lower contact surface 34 for aligning the formwork element 12 to another Scarf element 12 or 13 with a scarf lock 19.
  • a vertical section 36 of the foot 32 is delimited by an end section 37. The end section 37 separates the lower, not overmolded section 29 from the upper overmolded section 31.
  • This End section 37 also serves to make the injection molding tool opposite the one from the Injection mold to complete protruding foot 32.
  • the end section has one right arm 38, which is L-shaped. This is opposite left projection 39 is provided, the height of which essentially corresponds to the wall thickness, with which the carrier profile 27 is extrusion-coated to the outside substantially.
  • One The inside of the carrier profile 27 is significantly less than the outside trained wall thickness provided.
  • the inner strength of a plastic layer can be, for example, 1 to 2 mm.
  • the end section 37 follows at a distance then an upper and lower guide groove 41, 42, which is U-shaped and are arranged facing each other.
  • This to the middle of the formwork element 12 facing guide groove 41, 42 serves to receive a corner connecting element 43, in order to fix two carrier profiles 27 arranged at right angles to one another.
  • the corner connecting element 43 can be designed as an isosceles angle be formed, the free ends of which can be inserted into the guide grooves 41, 42.
  • the carrier profiles 27 can be arranged relative to one another to form a carrier profile frame 46 that forms the profile frame 14 after at least partial extrusion coating.
  • connection of the support profiles 27 over a corner should have a certain rigidity, however, on the other hand, it should also be possible for the support profile frame formed thereby 46 is so flexible that when inserting the support profile frame 46 in an injection mold still a slight alignment and Arrangement is possible.
  • the corner connecting element 43 can be clamped, Snap / snap connection or the like with the guide grooves 41, 42 be connectable.
  • the guide grooves 41, 42 are extrusion-coated with plastic and serve as a claw to the plastic. This can make a better connection be given between the plastic and the carrier profile 27.
  • a crank 47 is provided, which is used to stiffen the support profile 27 is provided.
  • the carrier profile 27 has from the end section 37 to the end region 49 has a substantially constant cross section.
  • the wall thickness is about 1.5 mm.
  • In the area of the offset 47 are in the longitudinal axis of the support profile 27 seen several holes (not shown) provided. The plastic can get from the outside of the frame leg 23 through the bore to the inside and completely surround the area between the guide grooves 41, 42.
  • the lower Web 51 is larger than the top web 51.
  • the webs 51 are preferably arranged at an angle of approximately 100 ° to one another.
  • the lower footbridge 51 is provided, for example, at an angle of approximately 25 to 45 ° to system level 28.
  • the upper and lower web surface 51 are functional surfaces as well as an outer one Contact surface 53 of the right arm 38 from the end portion 37. These functional surfaces are not encapsulated in plastic. This applies to these surfaces 51, 53 and 34 Shawl lock 19 on.
  • This configuration allows a 5-point support , a claw of the formwork lock 19 at least on the lower web surface 51 abuts and with a projection in the root area of the claw on the contact surface 53 abuts and at the same time to align the front 24 of the formlining 22 of two Formwork panels arranged to each other through the contact surface 34 enables. It follows also that the end portions 52 and abutment surface 53, which in a Level runs parallel to the system level 28, are provided.
  • the guide groove also serves for the lower web 51 52 as reinforcement or stiffening.
  • a web 54 arranged essentially at right angles to the system level 28 is provided.
  • the web 54 is formed with interruptions when viewed in the longitudinal direction.
  • An end face 56 of the web 54 rests in a tool wall.
  • the end area 49 has two opposing profile webs 58, 59, which in are arranged substantially perpendicular to the system plane 28.
  • the left profile web 58 forms a stiffening of an edge 61 which between the frame leg 23 and the Front 24 of the formwork plate 22 is formed.
  • An end face 62 of the profile web 58 directly adjoins a contact surface 63 of the projection 64.
  • the amount of the projection 64 corresponds to the height of a projection 66 as seen from the system level 28, the latter being arranged opposite the guide groove 41.
  • the carrier profile 27 is designed as an extruded profile and is preferably made of aluminum or an aluminum alloy, such as AlMgiSI 0.5 or titanium or Titanium alloy. Furthermore, other light metals as well as metals can be used become. High-strength plastics or fiber-reinforced plastics, for example, are also carbon-kevlar reinforced plastic, for the formation of carrier profiles possible.
  • the wall thickness of the support profile 27 can be enlarged.
  • the carrier profile 27 is formed as a hollow profile body with one or more chambers is, which in turn has a higher stiffness or torsional stiffness of a Formwork element 12 can be achieved.
  • the carrier profiles 27 can be preformed be, preferably plastically pre-deformed.
  • FIG. 3 shows a schematic partial section along the line III-III according to FIG. 1.
  • the partial section shows the arrangement of the crossbar 17 to the support profile 27 as also its design.
  • the crossbar 17 has a T-profile 67, which at one lower end with a Completes crossbar 68.
  • the crossbar 17 is completely embedded in the plastic.
  • This T-profile 67 is also an extruded profile made of aluminum or an aluminum alloy educated.
  • At an end 69 facing the support profile 27 there is an opposite the width of the T-profile 67 tapered projection 71 formed on the Free end has two tabs 72 and 73, which in a bore 74 of the support profile 27 intervene.
  • the bore 74 is provided in the area of the crank 47.
  • the tabs 72, 73 are bent in the opposite direction (FIG. 5), whereby the crossbar 17 is fixed in its position relative to the support profile 22.
  • the crossbar 17 extends from the formwork plate 22 to below the crossbar 68 of the T-profile 67.
  • bores 76 Seen in the longitudinal direction of the T-profile 67, several bores 76 are provided that between a left and right to the T-profile 67 formed plastic wall Bridge or connection can be created.
  • the bores 76 are V-shaped to one another staggered at regular intervals.
  • two fingers 77 are on one upper edge region of the T-shaped profile two fingers 77 at regular intervals provided in the opposite direction from the longitudinal plane of the T-profile 67th be deflected. This can maintain a distance for the T-profile 67 in the tool be created. This can alternatively take place in that on a finger 77 of the T-profile 67 a plastic clip or the like is placed.
  • both the tab-shaped connection between the crosspiece 17 and the carrier profile 27 and the crossbar 17 are completely encapsulated.
  • the transverse webs 17 can furthermore have an opening which acts as a handle opening is trained.
  • Handle can be arranged so that easy handling of the formwork elements 12, 13th can be given.
  • FIG. 6 is a side view of a component designed as scaffolding covering 80 shown.
  • the scaffolding covering 80 has a profile frame which supports the working surface 22 14, which is arranged perpendicular to the work surface 22.
  • the profile frame 14 forms Frame legs 23 that surround the work surface 22.
  • the function and the Structure of the scaffolding covering 80, as shown in Figures 6 to 9, corresponds the formwork elements 12, 13.
  • the scaffolding covering 80 With the scaffolding covering 80, it is provided that 81, 82 on narrow end faces Fastening elements 83, 84 are attached to the scaffolding covering 80 on a scaffolding, preferably frame frame to attach. Such scaffolds are particularly used for plastering, painting or the like.
  • the Fastening elements 83 are designed as hooks, as shown schematically 8 shows an enlarged side view.
  • the hooking element 83 is on attached to the carrier profile 27, for example by a welded connection, clamp connection, Adhesive connection or the like.
  • the scaffolding covering 80 can be used in a simpler manner Be used from above in a horizontal tube, not shown.
  • the carrier profiles 27 are advantageously as hollow chamber profiles educated. This can also be provided for the formwork elements 12, 13 be.
  • the extrusion coating can be carried out analogously to the configuration according to the support profiles 27 of the formwork elements 12, 13.
  • the fastening element 84 is preferably used as an anti-lift device formed, as shown in Fig. 9 enlarged. This can increase Building security can be made possible.
  • the anti-lift device 84 is first placed on horizontal pipes of the Scaffolding, in order to then lower the scaffolding covering 80 into the horizontal plane, the fasteners 83 also on a horizontal tube of the scaffold intervenes.
  • the lead-in chamfer 86 can preferably be used.
  • 81, 82 of the scaffold covering also on both end faces 80 hooking elements are provided as fastening element 83.
  • horizontal cross bars 17 are provided, which optionally introduced through a T-profile or other type of profile.
  • the beam profiles 27 have inclined surfaces 51 on their outside. This enables be that in the case of a plurality of scaffolding coverings 80 arranged parallel to one another a connection of the scaffolding coverings 80 can be created by means of scarf locks, so that a closed work surface 22, which serve as a tread or shelf can, is trained.
  • the component in which the work surface 22 and the profile frame 14 are integrally formed as an injection molded part, as a working platform is used.
  • the profile frame 14 can be modified in this way, for example be that shots are attached that allow the attachment of consoles.
  • 14 more attachment options can be attached to the profile frame be provided to attach a railing, preferably foldable.
  • the component according to the invention thus offers a basic concept for a large number of embodiments that can not only be used in construction.
  • the component according to the invention is produced by the method described below manufactured.
  • the support profiles 27 are cut to the appropriate length and width tailored.
  • the carrier profiles 27 are via corner connecting elements 43 assembled into a carrier profile frame 46.
  • the carrier profile frame 47 thus represents a relatively rigid frame, however is slightly resilient in itself.
  • This support profile frame 46 is into a multi-part injection molding tool formed with a plurality of slides inserted. The injection mold is then closed, the end section 37 is arranged such that it is a termination to the injection molding tool forms.
  • thermoplastic is made under high pressure of, for example, 300 to 500 bar via one or more injection points, preferably at the intersection of the Ribs 18 and the central and transverse webs 16, 17 are provided in the injection molding tool brought in.
  • the spraying time for a formwork element 13 of 160 cm 40 cm is about 6 to 8 seconds. After a slight hold and foaming of the plastic and a certain cooling time the finished Formwork element 12 can be removed from the injection mold.
  • the carrier profile 27 is or will advantageously be before the introduction of the thermoplastic coated with an adhesion promoter, so that full-surface adhesion of the plastic on the support profile 27 is made possible.
  • Polypropylene is preferably used to produce the formwork element 12, 13, which is preferably filled with a glass fiber content of 5 to 40% and beyond is provided with a blowing agent which preferably foams between 5 and 30% effects.
  • additives such as for UV resistance, for lower water absorption, for good concrete repellency or the like added or applied as a top layer.
  • polyamide or other thermoplastics can be used have high rigidity and low water absorption. The plastic is advantageous bright white to eggshell colored, so that the formwork element 12, 13 does not absorb heat when exposed to sunlight.
  • the formwork plate 22 has stiffeners, for example, by a continuous or at least partially coherent metal or Light metal insert as well as a woven, knitted or knitted fabric can. Furthermore, it can alternatively be provided that after the support profile frame 46 is inserted into the tool, a formwork panel with a sandwich structure, the has two metal inserts to stiffen it, inserted into the injection mold is and by subsequent molding to a formwork element 12, 13 with each other is connected.
  • a lamination is inserted into the tool is so that the formwork element 12, 13 by the lamination provided on the formwork plate 22 is recognizable.
  • the formwork panel 22 or the front 24 can be used simultaneously serve as advertising space.
  • the central web 16 can be designed analogously to the cross section 17. Likewise, at the crossing points of which an analogous attachment is provided.
  • the structure and design of the elements 12, 13 described above is not only limited to formwork elements, but can be used for all other support systems be where the creeping of the plastic is a significant hindrance represents that by metallic reinforcements or plastic reinforcements, such as can be compensated for by the support profiles.
  • Such support systems can for example doors, cassettes, roof covers, molded parts in Vehicle construction, roof panels and emergency shelters.

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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)
  • Finishing Walls (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Forging (AREA)

Claims (66)

  1. Elément de construction avec une surface de travail (22) et un cadre profilé (14) portant la surface de travail (22), qui présente des montants (23) perpendiculaires à la surface de travail (22) et formant le cadre profilé (14), qui sont formés à partir de profilés porteurs (27) au moins partiellement recouverts de plastique par extrusion, le montant (23) présentant un segment supérieur (31) se raccordant immédiatement à la surface de travail (22) et recouvrant par extrusion le profilé porteur (27), lequel segment supérieur présente à l'intérieur au moins une surface d'appui libre (50) du profilé porteur (27) et présentant un segment inférieur (29) ne couvrant pas par extrusion le profilé porteur (27), qui présente une surface d'appui (34) disposée essentiellement perpendiculairement au plan du système (28) au niveau d'un pied (32) du segment inférieur (29) non couvert par extrusion s'étendant le long du plan du système (28), caractérisé en ce que les surfaces de travail (22) et les montants (23) sont formés d'une pièce en tant que pièce moulée par injection, et la surface d'appui libre (50) du profilé porteur (27) est disposée à un certain angle par rapport au plan du système (28) du montant (23).
  2. Elément de construction selon la revendication 1, caractérisé en ce que la surface de travail (22) est un panneau de coffrage et l'élément de construction est prévu en tant que tableau de coffrage pour un coffrage de mur et de plafond.
  3. Elément de construction selon la revendication 1, caractérisé en ce que la surface de travail (22) est formée en tant que surface de plancher et l'élément de construction est prévu en tant que garniture d'échafaudage pour des échafaudages, de préférence des échafaudages de cadre.
  4. Elément de construction selon la revendication 1, caractérisé en ce que les profilés porteurs (27) et la portion en plastique de la surface de travail (22) et du cadre profilé (14) présentent essentiellement le même degré de force portante.
  5. Elément de construction selon l'une quelconque des revendications précédentes, caractérisé en ce que la force portante s'élève jusqu'à 60 kN/m2.
  6. Elément de construction selon la revendication 1, caractérisé en ce que le segment inférieur (29) est formé en tant que pied en forme de L (32).
  7. Elément de construction selon la revendication 1, caractérisé en ce que le montant (23) présente, sur sa surface extérieure, deux surfaces d'appui (62, 65) faisant saillie par rapport à une paroi latérale, qui forment, lors de la formation d'un coffrage de mur et de plafond une surface d'appui pour un autre montant (23).
  8. Elément de construction selon la revendication 7, caractérisé en ce que la première surface d'appui (62) se raccorde à une arête (61) limitant le panneau de coffrage (22), et la deuxième surface d'appui (65) est formée par une saillie (66) disposée à proximité du segment inférieur (29).
  9. Elément de construction selon la revendication 8, caractérisé en ce que la première et la deuxième surfaces d'appui (64, 65) présentent essentiellement deux ailettes (51, 52), disposées de préférence en V l'une par rapport à l'autre, pour recevoir une griffe d'une fermeture de coffrage (19) dans la partie du milieu du montant (23).
  10. Elément de construction selon la revendication 1, caractérisé en ce qu'entre les montants (23) sont prévues des branches médianes (16) et/ou des traverses (17), qui sont formées par un profilé (67) recouvert par extrusion.
  11. Elément de construction selon la revendication 10, caractérisé en ce que le profilé (67) recouvert par extrusion est en forme de T.
  12. Elément de construction selon la revendication 10 ou 11, caractérisé en ce que le profilé (67) présente à ses extrémités libres (69) une saillie (71), sur laquelle des moyens de liaison (72, 73) peuvent être disposés au niveau d'un profilé porteur (27).
  13. Elément de construction selon la revendication 12, caractérisé en ce que les éléments de liaison (72, 73) sont formés en tant que pattes qui viennent en prise dans un alésage (74) du profilé porteur (27) et sont recourbées l'une par rapport à l'autre.
  14. Elément de construction selon la revendication 10, caractérisé en ce qu'entre les branches médianes (16) et/ou les traverses (17) est prévu un nervurage (18) en plastique.
  15. Elément de construction selon la revendication 14, caractérisé en ce que le nervurage (18) s'étend en étoile pour former des points d'intersection entre la branche médiane (16) et la traverse (17), ou en ce que le nervurage (18) s'étend suivant des diagonales entre les branches médianes (16) et le montant (23) ou est formé en nid d'abeilles ou en forme polygonale.
  16. Elément de construction selon la revendication 15, caractérisé en ce qu'entre le montant (23) et le nervurage (18) est formée une poche d'ancrage (21) pour recevoir des barres d'ancrage.
  17. Elément de construction selon la revendication 1, caractérisé en ce que les profilés porteurs (27) s'étendent le long des montants (23) du cadre profilé (14).
  18. Elément de construction selon la revendication 1, caractérisé en ce qu'à l'extrémité libre du montant (23) est prévue une autre surface d'appui (53) disposée vers l'intérieur.
  19. Elément de construction selon la revendication 1, caractérisé en ce que les profilés porteurs (27) peuvent être reliés les uns aux autres avec au moins un élément de liaison à coin (43) pour former un cadre de profilés porteurs (46).
  20. Elément de construction selon la revendication 19, caractérisé en ce que les profilés porteurs (27) et l'élément de liaison à coin (43) peuvent être connectés les uns aux autres par un raccord à fiche, un raccord à pince et/ou un raccord par encliquetage.
  21. Elément de construction selon la revendication 19 ou 20, caractérisé en ce que l'élément de liaison à coin (43) peut être inséré dans un moyen de crampon du profilé porteur (27) formé par les rainures de guidage (41, 42).
  22. Elément de construction selon la revendication 14, caractérisé en ce que les branches médianes et les traverses (16, 17) sont formées avec une plus grande largeur par rapport à un nervurage (18) se trouvant entre elles.
  23. Elément de construction selon la revendication 14, caractérisé en ce que la branche médiane et la traverse (16, 17) sont formées avec des largeurs différentes, les traverses (17) étant de préférence plus larges que les branches médianes (16).
  24. Elément de construction selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une épaisseur de paroi de la surface de travail (22) est supérieure ou égale à l'épaisseur des branches médianes et/ou des traverses (16, 17) et/ou du nervurage (18).
  25. Elément de construction selon l'une quelconque des revendications 23 ou 24, caractérisé en ce qu'une ouverture est prévue au niveau d'une branche médiane (16) et/ou d'une traverse (17), qui est formée en tant que poignée ou dans laquelle une poignée peut être insérée.
  26. Elément de construction selon l'une quelconque des revendications précédentes, caractérisé en ce qu'on utilise un matériau polymère à résistance élevée aux chocs, de préférence du polypropylène ou du polyamide.
  27. Elément de construction selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un matériau polymère est chargé d'une proportion de fibre de verre d'au moins 5%.
  28. Elément de construction selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une proportion d'au moins 5% du matériau polymère est expansée.
  29. Elément de construction selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un matériau polymère est chargé ou recouvert d'additifs résistants aux intempéries, résistants aux UV et/ou anti-béton.
  30. Elément de construction selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un matériau polymère a une couleur allant de blanc à coquille d'oeuf.
  31. Elément de construction selon la revendication 1, caractérisé en ce que le profilé porteur (27) s'étend le long d'un plan du système (28) et présente un segment supérieur (31) pouvant être recouvert par extrusion avec des segments (38, 39, 41, 42, 51, 52, 54, 58, 59) s'étendant à gauche et à droite du plan du système (28), et un segment inférieur (29) ne pouvant pas être recouvert par extrusion, avec un pied (32).
  32. Elément de construction selon la revendication 31, caractérisé en ce que le segment inférieur et le segment supérieur (29, 31) sont séparés par un segment d'extrémité (37) .
  33. Elément de construction selon la revendication 31 ou 32, caractérisé en ce que le pied (32) est en forme de L et présente une surface d'appui (34) sur sa face inférieure.
  34. Elément de construction selon la revendication 32, caractérisé en ce que le segment d'extrémité (37) présente un bras droit (38) en forme de L qui présente une surface d'appui (53) s'étendant parallèlement au plan du système (28).
  35. Elément de construction selon l'une quelconque des revendications 31 à 34, caractérisé en ce que le segment d'extrémité (37) présente une saillie gauche (39) dont la hauteur correspond essentiellement à l'épaisseur de la paroi d'un montant (23) se composant de plastique et se trouvant du côté extérieur.
  36. Elément de construction selon l'une quelconque des revendications 31 à 35, caractérisé en ce qu'au-dessus du segment d'extrémité (37) sont prévues une rainure de guidage inférieure et une rainure de guidage supérieure (41, 42).
  37. Elément de construction selon la revendication 36, caractérisé en ce qu'entre les rainures de guidage inférieure et extérieure (41, 42) est prévu un coude (47).
  38. Elément de construction selon la revendication 37, caractérisé en ce que celui-ci présente, le long du segment coudé (47), des alésages qui sont disposés de préférence à intervalles réguliers les uns des autres.
  39. Elément de construction selon l'une quelconque des revendications 32 à 38, caractérisé en ce que dans la zone centrale (48) du segment supérieur (31) deux ailettes (51) disposées essentiellement en V l'une par rapport à l'autre forment une moulure et les ailettes (51) présentent des segments d'extrémité (52) s'étendant essentiellement parallèlement au plan du système (28).
  40. Elément de construction selon la revendication 39, caractérisé en ce qu'à l'opposé d'une base formée par deux ailettes (51) disposées en V l'une par rapport à l'autre est disposée une ailette (54) s'étendant essentiellement à angle droit par rapport au plan du système (28).
  41. Elément de construction selon la revendication 40, caractérisé en ce que l'ailette (54) est interrompue de manière segmentée, vu dans la direction longitudinale.
  42. Elément de construction selon l'une quelconque des revendications 33 à 41, caractérisé en ce qu'entre le segment central (48) et une zone d'extrémité (49) du segment supérieur (31) est formé un coude (57), qui présente de préférence des alésages s'étendant à intervalles réguliers les uns des autres dans la direction longitudinale.
  43. Elément de construction selon l'une quelconque des revendications 31 à 42, caractérisé en ce que le segment supérieur (31) présente une zone d'extrémité (49) avec au moins deux ailettes profilées (58, 59) tournées dans des directions opposées et disposées essentiellement perpendiculairement au plan du système (28).
  44. Elément de construction selon l'une quelconque des revendications 31 à 43, caractérisé en ce que les ailettes (38, 39, 51, 52, 54, 58, 59) s'étendant à gauche et à droite par rapport au plan du système (28) se terminent respectivement dans un plan parallèle au plan du système (28).
  45. Elément de construction selon l'une quelconque des revendications 31 à 44, caractérisé en ce que le segment d'extrémité (37) et la zone d'extrémité (49) présentent un épaississement.
  46. Elément de construction selon l'une quelconque des revendications 31 à 45, caractérisé en ce que le profilé porteur (27) est un profilé filé.
  47. Elément de construction selon l'une quelconque des revendications 31 à 45, caractérisé en ce que le profilé porteur (27) est un profilé laminé.
  48. Elément de construction selon la revendication 46, caractérisé en ce que le profilé porteur (27) est formé en métal léger, de préférence en aluminium ou en un alliage d'aluminium.
  49. Elément de construction selon la revendication 47, caractérisé en ce que le profilé porteur (27) est en métal.
  50. Elément de construction selon la revendication 31 à 45, caractérisé en ce que le profilé porteur (27) est en plastique, de préférence en plastique renforcé.
  51. Elément de construction selon la revendication 50, caractérisé en ce qu'il est prévu un plastique renforcé par des fibres ou à doublure de renfort arrière.
  52. Elément de construction selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins un segment supérieur (31) du profilé porteur (27) présente un moyen d'adhésion.
  53. Elément de construction selon la revendication 1, caractérisé en ce que les profilés porteurs (27) sont préformés plastiquement et/ou élastiquement.
  54. Elément de construction selon la revendication 53, caractérisé en ce que les profilés porteurs (27) sont préformés dans la direction de l'axe vertical.
  55. Elément de construction selon la revendication 1, caractérisé en ce que les profilés porteurs (27) sont formés après l'insertion dans un moule pour coulage par injection avec une commande d'outil.
  56. Elément de construction selon la revendication 53 ou 55, caractérisé en ce qu'un point central de la surface se trouvant dans le tableau de coffrage est surélevé par rapport aux bords du tableau de coffrage.
  57. Elément de construction selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le profilé porteur (27) est formé au moins partiellement en tant que profilé en forme de chambre creuse.
  58. Elément de construction selon la revendication 3, caractérisé en ce que des éléments de fixation (84, 86) sont prévus au moins sur deux côtés opposés de la surface de travail (22).
  59. Elément de construction selon la revendication 58, caractérisé en ce que l'élément de fixation (84) est formé d'un côté en tant qu'élément d'accrochage et du côté opposé en tant que sécurité contre le décollage (86).
  60. Procédé de fabrication d'un élément de construction (12) selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que,
    au moins un profilé porteur (27) et au moins une traverse (17) sont coupés à dimensions,
    les profilés porteurs (27) et les traverses (17) qui y sont disposées sont insérés dans un outil de coulage par injection, et
    au cours du processus d'injection, un élément (12) est formé avec un panneau de coffrage (22) et un cadre profilé (14) périphérique extérieur, qui présente des montants (23) s'étendant verticalement par rapport au panneau de coffrage (22), lesquels sont formés par des profilés porteurs (27) partiellement recouverts par extrusion.
  61. Procédé selon la revendication 60, caractérisé en ce que les profilés porteurs (27) forment au moyen d'éléments de liaison à coin (43) un cadre de profilé porteur (46) de préférence souple, qui est intégré dans l'outil de coulage par injection.
  62. Procédé selon la revendication 60 ou 64, caractérisé en ce qu'avant le processus d'injection, au moins un insert renforçant le panneau de coffrage (22), de préférence une feuille ou un treillis, un tissu, un tissu à mailles ou similaire, métallique ou non métallique est intégré dans l'outil de coulage par injection.
  63. Procédé selon la revendication 60 à 62, caractérisé en ce qu'un panneau de coffrage (22) préfabriqué, qui présente de préférence une construction en sandwich avec des renforcements, est intégré dans l'outil de coulage par injection et est au moins partiellement recouvert par extrusion.
  64. Procédé selon l'une quelconque des revendications 60 à 63, caractérisé en ce qu'au cours d'un processus d'injection en l'espace de moins de 10 secondes, un élément (12) d'une longueur allant jusqu'à 300 cm et d'une largeur allant jusqu'à 125 cm est fabriqué.
  65. Procédé selon l'une quelconque des revendications 60 à 64, caractérisé en ce qu'entre des points d'intersection de traverses (17) et de branches médianes (16) sont prévus des points d'injection, par le biais desquels le matériau polymère est injecté.
  66. Procédé selon l'une quelconque des revendications 60 à 65, caractérisé en ce que pour des éléments (12) d'une largeur de 40 cm au niveau des points d'intersection d'un nervurage (18), des points d'injection sont prévus, par l'intermédiaire desquels le matériau polymère est injecté.
EP97929237A 1996-06-26 1997-06-20 Element de construction et son procede de fabrication Expired - Lifetime EP0906482B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19625473 1996-06-26
DE19625473 1996-06-26
DE19724701A DE19724701A1 (de) 1996-06-26 1997-06-12 Bauelement und Verfahren zur Herstellung eines Bauelementes
DE19724701 1997-06-12
PCT/EP1997/003240 WO1997049881A1 (fr) 1996-06-26 1997-06-20 Element de construction et son procede de fabrication

Publications (2)

Publication Number Publication Date
EP0906482A1 EP0906482A1 (fr) 1999-04-07
EP0906482B1 true EP0906482B1 (fr) 1999-12-22

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EP97929237A Expired - Lifetime EP0906482B1 (fr) 1996-06-26 1997-06-20 Element de construction et son procede de fabrication

Country Status (6)

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US (1) US6148575A (fr)
EP (1) EP0906482B1 (fr)
AT (1) ATE188006T1 (fr)
AU (1) AU3341997A (fr)
BR (1) BR9710015A (fr)
WO (1) WO1997049881A1 (fr)

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DE19961062A1 (de) * 1999-12-17 2001-06-28 Betoratio Gmbh Schalungssystem
US20040261342A1 (en) * 2002-12-31 2004-12-30 Hatem Hannawa Re-usable non-metallic construction forming system
ITSV20030051A1 (it) * 2003-12-23 2005-06-24 Pasotti Ind Legno Struttura per la realizzazione di casseforme prefabbricate,
US7392628B2 (en) * 2005-01-06 2008-07-01 Tapco International Corporation Functional shutter
GB2432549A (en) * 2005-11-25 2007-05-30 Motorola Inc Moulded structural member, method of producing the member and a portable communication device including the member
US20090241447A1 (en) * 2008-03-26 2009-10-01 Mark Vollan Foundation Wall For Modular Structures
PL2487429T3 (pl) * 2011-02-10 2017-08-31 Trox Gmbh Prostopadłościenna, zwłaszcza sześcienna, obudowa do umieszczenia w niej części składowych urządzenia klimatyzacyjnego i/lub wentylacyjnego
RU2507355C1 (ru) * 2012-08-01 2014-02-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Поволжский государственный технологический университет Термоактивная опалубка с автоматическим программным управлением процессом тепловой обработки бетона
US9279260B2 (en) * 2012-10-12 2016-03-08 Norton Baum Modular panel concrete form for self-lifting concrete form system
US10718114B2 (en) * 2017-10-30 2020-07-21 Samsung C&T Corporation High-damping reinforced concrete (RC) lattice beam and substructure using same
US10920433B2 (en) * 2018-06-13 2021-02-16 Wilian Holding Co. Heavy duty spanning forms and related systems and methods

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JPS49145417U (fr) * 1973-04-13 1974-12-16
DE3345592A1 (de) * 1983-12-16 1985-08-01 Gerhard 7274 Haiterbach Dingler Grossflaechige, plattenfoermige bauteile
CH676134A5 (en) * 1987-05-07 1990-12-14 Rolf Zollinger Shuttering multisection for concrete structures - comprises reinforced non-porous section body on rigid frame, preventing sticking to hardening concrete
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Also Published As

Publication number Publication date
EP0906482A1 (fr) 1999-04-07
US6148575A (en) 2000-11-21
BR9710015A (pt) 2000-01-11
AU3341997A (en) 1998-01-14
ATE188006T1 (de) 2000-01-15
WO1997049881A1 (fr) 1997-12-31

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