EP3242983A1 - Frame-panel formwork element - Google Patents

Frame-panel formwork element

Info

Publication number
EP3242983A1
EP3242983A1 EP16701908.2A EP16701908A EP3242983A1 EP 3242983 A1 EP3242983 A1 EP 3242983A1 EP 16701908 A EP16701908 A EP 16701908A EP 3242983 A1 EP3242983 A1 EP 3242983A1
Authority
EP
European Patent Office
Prior art keywords
formwork
frame
support
support grid
support frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP16701908.2A
Other languages
German (de)
French (fr)
Other versions
EP3242983B1 (en
Inventor
Werner Schneider
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Peri GmbH
Original Assignee
Peri GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Peri GmbH filed Critical Peri GmbH
Publication of EP3242983A1 publication Critical patent/EP3242983A1/en
Application granted granted Critical
Publication of EP3242983B1 publication Critical patent/EP3242983B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G9/00Forming or shuttering elements for general use
    • E04G9/02Forming boards or similar elements

Definitions

  • the invention relates to a frame sheet formwork element for the production of concrete components with a circumferential support frame and with a fixed to the support frame formwork.
  • the invention further relates to a formwork with a plurality of such frame panel formwork elements.
  • concrete formwork elements are used to produce concrete components, in particular walls or ceilings, from in-situ concrete.
  • the concrete formwork elements are in direct contact with the fresh concrete during the production of the concrete components and determine the shape and surface structure of the finished concrete component. They must withstand the hydrostatic pressure of the initially liquid concrete and derive this pressure suitable. In particular, in the production of high walls or columns, the concrete pressure can reach very high levels. This results in demanding demands on strength and rigidity of the , -
  • Frame panel formwork elements offer the advantage that they can be modularly joined together in a simple and time-saving manner in order to be able to produce any dimensioned concrete components. At the same time, they simplify the construction process by, for example, being able to handle several interconnected frame panel formwork elements together, which saves time and helps to avoid mistakes.
  • Frame panel formwork elements are reusable concrete formwork elements, i. they are, after the fresh concrete is cured, removed from the concrete component (Ausschalvorgang) and can be used for the production of other concrete components. They differ so far from so-called lost formwork elements that remain permanently on the concrete component, and therefore constructed differently.
  • the support frame of the market available on the market frame formwork elements can, for. T. consuming struts and Abstitzungen for the usually very thick to be executed Schalophute have to withstand the loads of liquid concrete can.
  • the large thickness of the formwork is necessary so that they can withstand arranged in between the support elements areas the concrete pressure without deforming inadmissible or even break.
  • Frame panel formwork elements are therefore correspondingly heavy and expensive to manufacture.
  • the circumferential support frame is formed from interconnected rectangular frame profiles.
  • the support frame is additionally reinforced by stiffening profiles, i. H. Longitudinal and transverse bars, stiffened, to which the formwork skin is additionally screwed.
  • stiffening profiles i. H. Longitudinal and transverse bars, stiffened, to which the formwork skin is additionally screwed.
  • This design requires increased manufacturing costs, because the plurality of profiles must be attached to the formwork and the frame elements. In order to achieve a sufficient stabilizing effect of the longitudinal and transverse bars, they must be connected at many points with the formwork, z. B. with screws or rivets. Even a replacement of a worn or damaged formwork skin is possible due to the large number of attachment points only with great time and expense.
  • the nailability of the formwork is affected by the large-scale investment of the edge regions of the longitudinal and transverse beams on the formwork, since nails hammered from the front into the formwork can completely penetrate the formwork only in those formwork areas in which the formwork on any of the longitudinal or . Transverse bar of the support frame rests.
  • the frame panel formwork element has a great weight and is therefore difficult to handle.
  • a frame sheet formwork element for the production of concrete components with the features specified in claim 1 and by a formwork according to claim 15.
  • the support grid which is non-positively connected to the support frame, it can be ensured that the formwork does not bend excessively under the pressure of the fresh concrete.
  • the support grid spans an opening formed in the peripheral support frame.
  • the formwork skin rests, preferably on the entire surface of the support grid, on the support grid and is supported on the back by the support grid.
  • the formwork skin can be made thinner overall. This saves costs and weight.
  • the latter benefits the handling of the frame panel formwork element.
  • the support grid attached to the support frame can record during the concreting process beyond the fresh concrete pressure resulting shear, tensile or compressive forces, so that the support frame itself can be made thinner overall and thus easier.
  • the flat formwork support on the support grid also makes it possible to use a material with lower inherent rigidity for the formwork.
  • the material of the formwork skin can therefore be largely freely selected in the frame panel formwork element according to the invention without the existing limitations in conventional frame panel formwork elements.
  • the material of the formwork can be optimized in terms of its properties affecting the quality of the concrete component to be produced. Likewise, increased attention can be paid to properties such as nailability, abrasion resistance or recyclability (type purity of the formwork material) of the formwork.
  • the supporting grid is understood to mean a planar, substantially plate-shaped grid element with structural elements, between which a multiplicity of meshes or openings / recesses are formed.
  • the support grid can be understood in other words in the sense of a grid. - -
  • the support grid includes a plurality of structural elements, each aligned along and spaced from one another along a second direction, such that structural elements intersect along the first direction with structural elements along the second direction.
  • the structural elements of the first and the second direction can intersect in such a way that the meshes or recesses between the structural elements in each case have internal angles between 30 ° and 90 ° or between 150 ° and 90 °.
  • the distances between adjacent structural elements of each direction, measured orthogonal to the structural elements, may be the same throughout the entire support grid. In addition, the distances between adjacent features may be equal along both directions.
  • the number of stiffening profiles (in particular longitudinal and / or transverse struts) of the support frame can be reduced or it can even be completely dispensed with such stiffening profiles.
  • an overall simpler and more cost-effective production of the frame panel formwork element and a reduced weight of the frame panel formwork element is made possible.
  • the support frame can of course have such stiffening profiles.
  • the support frame of the frame panel formwork element can be formed in a manner known per se from circumferentially arranged frame profiles or profile elements.
  • the support frame interconnected, z. B. welded together, hollow sections, such as rectangular tubes include.
  • the profile elements of the support frame are also used in a conventional manner to be able to connect several frame panel formwork together. Through the use of the support grid can be ensured that remains on the rotating support frame enough space for attaching straightening locks.
  • the surrounding support frame also acts as edge protection for the formwork.
  • the support frame can - - For example, made of steel, aluminum or fiber composite material.
  • the structural elements of the support grid preferably have an average thickness transverse to a longitudinal direction of the structural elements, which is substantially smaller than the thickness of the support grid, measured perpendicular to the plane in which the support grid extends or which is spanned by the support grid.
  • the thickness of the support grid corresponds to the (construction) height of the structural elements.
  • the thickness of the structural elements according to the invention can be in particular less than half, preferably less than a quarter, of the height of the structural elements.
  • the average thickness of the structural elements of the support grid may preferably be smaller than the distance between two adjacent structural elements along a common direction.
  • the distance between two adjacent structural elements is more than five times, preferably more than ten times as large as the average thickness of the structural elements.
  • the structural elements can advantageously be embodied as a solid material under production engineering aspects.
  • the structural elements may, for example, have a round, a polygonal, in particular rectangular or else an elliptical or oval cross section.
  • the support grid may in particular be formed in one piece according to a preferred embodiment of the frame panel formwork element.
  • Such a support grid is inexpensive to manufacture and can be realized at the same time with a high load capacity.
  • the support grid may comprise structural elements which are jammed or welded together.
  • the structural elements can be designed in particular as flat profiles.
  • the formwork skin of the frame panel formwork element according to the invention may consist of any suitable material or composite material. In particular, it may, for. Example of wood, a wood material, a multiplex board or a plastic, in particular a fiber-reinforced plastic or a multilayer plastic laminate, be made. It is understood that the formwork can be coated in a known manner on the front side to facilitate the stripping of the frame panel formwork element or to improve the surface quality of the concrete components to be produced.
  • a releasable fastening means a fastening in which, at least, the fastening means, such as, for example, screws or rivets, are damaged or destroyed during the loosening of the fastening, while the components connected to the fastening means, in particular the formlining, the supporting frame and the supporting grid, not be damaged.
  • the support grid is fixed circumferentially on the support frame.
  • the support grid is thus attached to all peripheral frame profiles or profile elements of the support frame (especially directly). This allows a particularly rigid and secure connection of the support grid can be achieved on the support frame.
  • the formwork is supported particularly well.
  • the support frame can be stiffened by the support grid itself.
  • the profile elements of the support frame can be realized in each case with a smaller cross-section or with a smaller wall thickness. This offers further cost and weight advantages.
  • the support grid may be attached to inner wall portions of the support frame according to an embodiment of the invention.
  • Support grid is preferably aligned flush with the front of the support frame or its profile elements. This can be provided by the support frame and the support grid a stepless and plane creafiambae for the formwork.
  • the formwork skin is then supported with a first portion on the support frame and with a second portion supported on the support grid.
  • the profile elements of the support frame can be provided with a (raised) profile edge, the peripheral side of the formwork, d. H. laterally, overlaps protectively to counteract damage to the front edge of the formwork during transport and during construction site use of the frame panel formwork element.
  • the support grid may advantageously be glued or welded to the inner wall sections.
  • the positioning of the support grid in the manufacture of the frame panel formwork element can be simplified.
  • the support grid can be screwed to the support frame or riveted to it.
  • the support grid can be fixed positively on the support frame.
  • the support grid can then be installed very easily. Due to the positive engagement, the correct positioning of the support grid on the support frame during assembly of the frame panel formwork element is simplified. In particular, care must be taken in this embodiment only to make a front of the support grid precisely and set correctly aligned on the support frame, so that the support of the formwork skin is guaranteed. In the plane in which the support grid extends, a certain play, on the order of a half mesh size, can exist relative to the support frame without impairing the function of the frame panel formwork element.
  • the support grid is arranged clamped between the formwork skin and the support frame.
  • the support grid is thereby fixed between the formwork skin and arranged on the support frame or trained investment elements. This simplifies the assembly of the Frame panel formwork element by the support grid when attaching the formwork to the support frame can be determined without additional effort.
  • the support grid can be welded to the support frame according to the invention, screwed, riveted and / or glued. For a secure connection of support grid and support frame is ensured, which can be implemented in the manufacture of the frame panel formwork element in a simple manner.
  • the majority of the formwork can be made opaque.
  • more than 70%, preferably more than 90%, of the surface formed by the formwork skin may be made opaque to light.
  • the formwork skin is completely opaque.
  • the majority of the surface formed by the formwork skin may be water impermeable.
  • more than 70%, preferably more than 90%, of the surface formed by the formwork skin may be made impermeable to water.
  • the formwork skin is completely impermeable to water.
  • the support grid may in particular be formed of crossed structural elements which are connected to one another in a material-locking manner. As a result, a particularly high rigidity and strength of the support grid is achieved.
  • the support grid is preferably designed as a stretched grid.
  • the expanded metal can in particular consist of steel or aluminum, d. H. be formed by an expanded metal.
  • the stitches of the grid-like material made from sheets or strips are neither braided nor welded.
  • the expanded metal may have, for example, diamond meshes, hexagonal meshes or square meshes. Such expanded metal or expanded metal is available inexpensively on the market prefabricated.
  • the support or expanded metal can also be made of plastic.
  • a plastic is in particular a fiber reinforced plastic, z.
  • a glass fiber reinforced plastic suitable.
  • the aforementioned structural elements of the support grid have a cross-section which is at least partially tapering towards the formwork skin.
  • a further preferred embodiment of the invention provides that the support grid has a maximum mesh size which is smaller than a width of a profile element of the peripheral support frame.
  • the width of the profile element is measured perpendicular to a longitudinal direction of the profile element and parallel to the plane of the formwork skin.
  • the support of the formwork in this case is particularly even.
  • the structural elements can be made thinner, since the mechanical stability of the support grid is ensured by the larger number of structural elements. As a result, the nailability or the ability to screw the formwork skin can be further improved.
  • the support grid may according to the invention have two or more surface areas, which differ in their maximum mesh size from each other. - -
  • the maximum mesh size of the individual area regions is preferably aligned with a fresh concrete pressure load of the surface area or the shell surface area supported thereon during operation of the frame panel formwork element in order to ensure adequate formwork skin support.
  • the formwork skin can be fastened to the support grid and to the support frame from behind by bolts projecting through the support grid.
  • the screws preferably do not project out of the formwork on the front side.
  • the support grid can be defined as explained above on the support frame.
  • the screws for fixing the formwork can be supported directly on the back of the support grid.
  • the support grid can be welded, for example, with the support frame.
  • contact elements can be provided, against which the support grid rests on the front side.
  • the support frame of the frame panel formwork element can consist essentially only of circumferentially arranged profile elements, ie the support frame has no further longitudinal or transverse bar, which span an opening formed in the support frame opening. In this case, only the support grid spans the opening formed in / from the support frame.
  • the frame panel formwork element can be constructed in a lightweight construction and at the same time the production of the frame panel formwork element can be further simplified.
  • This embodiment of the frame panel formwork element is particularly suitable for smaller sizes, in which the rotating support frame is already sufficiently stabilized by the support grid attached to it.
  • the support frame in addition to the support grid at least one transverse and / or longitudinal stiffening profile (preferably a hollow profile) may have.
  • the stiffening profile can be designed as a hollow profile in a manner corresponding to the profile elements or have a profile cross section corresponding profile elements.
  • the load capacity of the frame panel formwork element can be further increased. This may be necessary in particular for larger dimensions of the frame panel formwork element.
  • an additionally stiffened frame sheet formwork element is particularly suitable for the production of concrete components that exert a large concrete pressure on the formwork, or if particularly high demands are placed on the dimensional accuracy of the concrete component to be produced.
  • the object according to the invention is furthermore achieved by a formwork for producing a stationary concrete structure, wherein the formwork has at least two frame panel formwork elements arranged next to one another and described above.
  • Figure 1 is a frame panel formwork with a partially broken formwork facing, a support frame arranged underneath and with a support frame attached to the support frame for the formwork, in a shell-side view.
  • Fig. 3 is a frame panel formwork element, in which the formwork skin and the
  • Support grid are bolted to arranged on the support frame Aniage instituten, in a rear view;
  • FIGS. 5 shows the support grid of a frame panel formwork element according to FIGS.
  • Fig. 6 shows a formwork with several frame panel formwork elements.
  • FIG. 1 shows a frame panel formwork element 10 according to the invention with a circumferential support frame 12 and with a formwork skin 14 in a shell-side view.
  • the formwork skin 14 is shown partially broken in Fig. 1 to make the underlying components recognizable.
  • the frame panel formwork element 10 can basically be used for wall or ceiling formwork.
  • the profile elements 16 are each designed as hollow profiles and can in particular be welded together.
  • the support frame 12 can in addition to the profile elements 16 arranged at the edge, one or more transverse or longitudinally arranged stiffening profiles have, as indicated in Fig. 1 with a dashed line (not designated). So / che stiffening profiles may for example have a profile elements 16 of the support frame 12 corresponding cross-section and how these may each be formed as a hollow profile.
  • the support frame 12 has an opening 20 which is circumferentially bounded by the individual profile elements 16 of the support frame 12.
  • a support grid 22 for the formwork skin 14 is arranged in the area between the profile elements 16 of the peripheral support frame 12.
  • the support grid 22 covers the opening 20 of the support frame 12.
  • the formwork skin 14 is located at the rear on a front side 24 of the profile elements 16 of the peripheral support frame 12 and on the support grid 22 and is supported on these.
  • the formwork skin 14 may be releasably secured to the support frame 12 in a manner not shown in detail, in particular screwed. It is understood that the formwork 14 can also be riveted to the support frame 12.
  • the support grid 22 prevents the formwork skin 14 during operation of the ahmentafelschalungselements 10 under a acting on the formwork facing 14 concrete pressure continues to bend as permissible.
  • the formwork skin 14 can be designed specifically for their nailability, their surface structure, Ausschal zucchini, weight, recyclability (sorted structure), wear resistance and abrasion resistance in their material properties.
  • the formwork skin 14 can be made thinner overall and thus lighter and less expensive.
  • the support grid 22 is formed by a plurality of crossed arranged structural elements 26. A plurality of stitches 28 are thereby formed between the structural elements 26.
  • Meshes 28 may be diamond-shaped, as shown in FIG. 1, or have a different shape, for example square, hexagonal or even rounded.
  • the individual meshes of the support grid have first angles al with al> 90 ° and second angles a2 with a2 ⁇ 90 °.
  • the structural elements 26 of the support grid 22 may be materially connected to one another at their intersection points 30 in order to realize a large load-bearing capacity of the support grid 22.
  • the support grid 22 may be integrally formed as an expanded metal, in particular aluminum, or plastic.
  • the expanded metal mesh is thus formed as a so-called expanded metal.
  • the frame panel formwork element 10 can be realized with an even lower weight.
  • the meshes 28 of the support grid 22 have a uniform maximum mesh size MW, which is smaller than the (uniform) width BP of the profile elements 16 of the peripheral support frame 12. Thus, a uniform support of the formwork skin 14 can be achieved. If necessary, the support grid can also have meshes or surface areas with a different maximum mesh width MW.
  • frame panel formwork element 10 can have bores for the passage of anchor rods (not shown) in a manner known per se.
  • FIG. 2 shows the frame panel formwork element 10 from FIG. 1 in a sectioned sectional view.
  • the support grid 22 is in the illustrated embodiment to inner wall portions 32 of all four profile elements 16 of the rotating support frame 12 and is welded to each of these.
  • the support grid 22 is thereby arranged like a net between the profile elements 16 of the support frame (clamped) held.
  • the support grid 22 also screwed to the profile elements 16 of the support frame 12, riveted or glued to the profile elements 16.
  • the support grid 22 is aligned flush with the front sides 24 of the profile elements 16 of the peripheral support frame 12 in the direction of a formwork orthogonally oriented axis 34 of the frame panel formwork element 10, so as to enable together with the support frame 12, a smooth and planar conditioning of the formwork skin 14.
  • the profile elements 16 are executed for reasons of weight as hollow profiles and have a rectangular cross-section.
  • the thickness DS of the support grid 22 is in each case less than half the thickness DT of the support frame 12. In the present case, the thickness DS of the support grid 22 is less than a quarter of the thickness DT of the support frame 12. The thickness DS of the support grid 22 can be even smaller be less than one-eighth of the thickness DT of the support frame 12, for example. This thickness DS of the support grid 22 is sufficient to ensure the desired support effect for the formwork skin 14. At the same time, sufficient free space still remains at the inner wall sections 32 of the profile elements 16 in order to be able to connect a plurality of frame panel formwork elements 10, for example for shelling walls, with the aid of directional locks (not shown) or the like. It is understood that the support frame for this purpose may have in known manner undercuts for the directional locks or recesses for other connecting means (not shown).
  • FIG. 3 shows a rear view of a further frame panel formwork element 10, in which the formwork skin 14 is screwed to the support frame 12 through the support grid 22.
  • the support frame 12 has abutment elements 36 for the support grid 22.
  • the abutment elements 36 are attached to the support frame 12, but may also be formed by the support frame 12.
  • the abutment elements 36 are designed, for example, as angle profiles welded to the support frame 12.
  • screws 38, - - which extend through the contact elements 36 and the support grid 22 and which engage with its free end in the formwork skin 14. It is understood that a plurality of such screws 38 in the circumferential direction of the support grid 22 must be arranged spaced from each other to attach the support grid 22 on all sides of the support frame 12.
  • FIG. 4 shows the frame panel formwork element 10 from FIG. 3 in a fragmentary cross section.
  • the screws 38 are supported by way of example with their screw heads 40 on the rear side against the abutment elements 36 and extend through bores 42 of the abutment elements 36 and the support grid 22 and engage in the rear of the formwork 14.
  • the length (not labeled) of the screws 38 is in each case selected such that the screws 38 do not completely penetrate the formwork skin 14. This ensures that the formlining 14 has on its surface 44 no impurities by protruding screws 38 (or rivets with alternative attachment). With the frame panel formwork element 10 according to the invention, concrete components of the highest quality of exposed concrete can thereby be produced.
  • the support grid 22 is located on the front side 24 of the support frame 12 and its profile elements 16 directly on.
  • the support grid 22 is clamped by the force of the engaging in the formwork 14 screws 38 on the formwork skin 14 with the support frame 12 and fixed to the support frame 12.
  • the support grid 22 may be arranged completely in the back frame in the support frame 12 formed opening 20 (similar to the embodiment shown in Fig. 2), so that the support grid 22 on the outside of the inner wall sections 32 of the profile elements 16 of the support frame 12 adjacent.
  • the formwork skin 14 is then pressed by the screws 38 to the support frame 12.
  • the support grid 16 is in this case form-fitting between formwork skin 14, inner wall portions 32 of the support frame 12 and the Investment elements 36 set.
  • the positive connection is limited to a direction perpendicular to the plane of the formwork skin 14. In the plane of the formwork skin 14, the fixation is effected by adhesion due to the prestressing of the screws 38.
  • FIG. 5 shows a detailed view of the contact situation between formwork skin 14 and support grid 22, as can be realized in the frame panel formwork elements 10 explained above in connection with FIGS. 1 to 4.
  • the structural elements 26 of the support grid 22 have a cross section which tapers along the axis 34 of the frame panel formwork element 10 in the direction of the formwork skin 14.
  • the structural elements 26 thus have side edges 46, which are arranged obliquely to each other.
  • the side edges 46 can be arranged obliquely in particular under a shell-side flank angle ⁇ with 90 ° ⁇ ⁇ 30 °.
  • the structural elements 26 are all web-shaped and have a mean thickness DE which is (substantially) less than the thickness (structural height) DS of the support grid 22.
  • the average thickness DE can, as in FIG. 5, be round a third of DS or even less.
  • DE is less than a quarter of DS.
  • the distance between two adjacent structural elements 26 may be, for example, three to twenty times the mean thickness DE of the structural elements 20.
  • FIG. 6 shows a formwork 50 with a plurality of frame panel formwork elements 10 described above.
  • the frame panel formwork elements 10 can be connected to one another by at least one formwork lock (not shown) of the formwork 50.
  • the support frame 12 of the frame panel formwork elements 10 are partially directly adjacent to each other.
  • the frame panel formwork element 10 can be made lighter overall by the use of the support grid 22, and thereby be handled more easily in practice.
  • the support frame 12 and the formwork 14 overall with a lower material use, d. H. each with a reduced wall thickness than previously possible, be realized.

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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)

Abstract

The invention relates to a frame-panel formwork element (10) for producing concrete components, comprising a peripheral supporting frame (12) and a formwork lining (14) fastened to the supporting frame (12), wherein a supporting grid (22) is fastened to the supporting frame (12), on the back side of which supporting grid the formwork lining (14) lies and is supported, and wherein the thickness of the supporting grid (22) is at most half of the thickness of the supporting frame (12).

Description

Rahmentafelschalungselement  Panel formwork element
Die Erfindung betrifft ein Rahmentafelschalungselement zur Herstellung von Betonbauteilen mit einem umlaufenden Tragrahmen sowie mit einer am Tragrahmen befestigten Schalhaut. Die Erfindung betrifft weiterhin eine Schalung mit mehreren solcher Rahmentafelschalungselemente. The invention relates to a frame sheet formwork element for the production of concrete components with a circumferential support frame and with a fixed to the support frame formwork. The invention further relates to a formwork with a plurality of such frame panel formwork elements.
In der Baupraxis werden Betonschalungselemente zur Herstellung von Betonbauteilen, insbesondere Wänden oder Decken, aus Ortbeton eingesetzt. Die Betonschalungselemente stehen während der Herstellung der Betonbauteile in direktem Kontakt mit dem Frischbeton und bestimmen Form und Oberflächenstruktur des fertigen Betonbauteils. Sie müssen dabei dem hydrostatischen Druck des zunächst flüssigen Betons widerstehen und diesen Druck geeignet ableiten. Insbesondere bei der Herstellung von hohen Wänden oder Säulen kann der Betondruck sehr große Werte erreichen. Daraus ergeben sich anspruchsvolle Forderungen an Festigkeit und Steifigkeit der . - In building practice, concrete formwork elements are used to produce concrete components, in particular walls or ceilings, from in-situ concrete. The concrete formwork elements are in direct contact with the fresh concrete during the production of the concrete components and determine the shape and surface structure of the finished concrete component. They must withstand the hydrostatic pressure of the initially liquid concrete and derive this pressure suitable. In particular, in the production of high walls or columns, the concrete pressure can reach very high levels. This results in demanding demands on strength and rigidity of the , -
Betonschalungselemente. Ferner wird die Oberflächengüte des Betons von der an ihm anliegenden Schalhaut wesentlich mitbestimmt, woraus sich bei der Herstellung von Sichtbetonbautetlen weitere Anforderungen an die Betonschalungselemente ergeben. Concrete formwork elements. Furthermore, the surface quality of the concrete is significantly influenced by the applied to him formwork skin, resulting in the production of Sichtbetonbautetlen further demands on the concrete formwork elements.
Bei einem als Rahmentafelschalungselement ausgebildeten Betonschalungselement sind die Schalhaut und die Tragstruktur, d.h. der Tragrahmen, zu einer vormontierten Einheit zusammengefasst. Rahmentafelschalungs- elemente bieten dadurch den Vorteil, dass sie in einfacher und zeitsparender Weise modular aneinander gefügt werden können, um beliebig dimensionierte Betonbauteile herstellen zu können. Gleichzeitig vereinfachen sie den Bauablauf, indem beispielsweise mehrere miteinander verbundene Rahmentafelschalungs- elemente gemeinsam gehandhabt werden können, was Zeit spart und hilft, Fehler zu vermeiden. In a concrete formwork element designed as a frame panel formwork element, the formwork skin and the supporting structure, i. the support frame, combined into a preassembled unit. Frame panel formwork elements offer the advantage that they can be modularly joined together in a simple and time-saving manner in order to be able to produce any dimensioned concrete components. At the same time, they simplify the construction process by, for example, being able to handle several interconnected frame panel formwork elements together, which saves time and helps to avoid mistakes.
Rahmentafelschalungselemente sind wiederverwendbare Betonschalungselemente, d.h. sie werden, nachdem der Frischbeton ausgehärtet ist, vom Betonbauteil entfernt (Ausschalvorgang) und können zur Herstellung weiterer Betonbauteile verwendet werden. Sie unterscheiden sich insofern von sogenannten verlorenen Schalungselementen, die am Betonbauteil dauerhaft verbleiben, und die daher andersartig aufgebaut sind. Frame panel formwork elements are reusable concrete formwork elements, i. they are, after the fresh concrete is cured, removed from the concrete component (Ausschalvorgang) and can be used for the production of other concrete components. They differ so far from so-called lost formwork elements that remain permanently on the concrete component, and therefore constructed differently.
Die Tragrahmen der am Markt verfügbaren Rahmentafelschalungselemente können z. T. aufwendige Verstrebungen und AbStützungen für die zumeist sehr dick auszuführenden Schalhäute aufweisen, um den Lasten des flüssigen Betons widerstehen zu können. Die große Dicke der Schalhaut ist dabei notwendig, damit diese in zwischen den Abstützungselementen angeordneten Bereichen dem Betondruck standhalten kann, ohne sich unzulässig zu verformen oder gar zu brechen. Rahmentafelschalungselemente sind daher entsprechend schwer und in der Herstellung teuer. The support frame of the market available on the market frame formwork elements can, for. T. consuming struts and Abstützungen for the usually very thick to be executed Schalhäute have to withstand the loads of liquid concrete can. The large thickness of the formwork is necessary so that they can withstand arranged in between the support elements areas the concrete pressure without deforming inadmissible or even break. Frame panel formwork elements are therefore correspondingly heavy and expensive to manufacture.
DE 10 2013 204 999 AI offenbart ein Rahmentafelschalungselement, bei dem die Schalhaut eine geringe Eigensteifigkeit aufweist (insbesondere ist eine - - DE 10 2013 204 999 AI discloses a frame sheet formwork element, in which the formwork has a low inherent rigidity (in particular, is a - -
Kunststoffschalhaut mit einem Elastizitätsmodul von weniger als 4000 MPa vorgesehen). Der umlaufende Tragrahmen ist aus miteinander verbundenen Rechteck-Rahmenprofilen gebildet. Der Tragrahmen ist zusätzlich durch Aussteifungsprofile, d. h. Längs- und Querriegel, ausgesteift, an denen die Schalhaut zusätzlich festgeschraubt ist. Diese Konstruktion erfordert einen erhöhten Fertigungsaufwand, weil die Vielzahl der Profile an der Schalhaut und den Rahmenelementen befestigt werden müssen. Um eine ausreichende Stabilisierungswirkung der Längs- und Querriegel zu erzielen, müssen diese an vielen Punkten mit der Schalhaut verbunden werden, z. B. mit Schrauben oder Nieten. Auch ein Austausch einer verschlissenen oder beschädigten Schalhaut ist aufgrund der Vielzahl von Befestigungsstellen nur mit großem Zeit- und Kostenaufwand möglich. Ferner wird durch die großflächige Anlage der Randbereiche der Längs- und Querträger an der Schalhaut die Nagelbarkeit der Schalhaut beeinträchtigt, da von vorne in die Schalhaut eingeschlagene Nägel die Schalhaut nur in denjenigen Schalhautbereichen vollständig durchdringen können, in denen die Schalhaut an keinem der Längs- bzw. Querriegel des Tragrahmens anliegt. Darüber hinaus weist das Rahmentafelschalungselement ein großes Gewicht auf und ist deshalb nur schwer handzuhaben. Plastic shell with a modulus of elasticity of less than 4000 MPa provided). The circumferential support frame is formed from interconnected rectangular frame profiles. The support frame is additionally reinforced by stiffening profiles, i. H. Longitudinal and transverse bars, stiffened, to which the formwork skin is additionally screwed. This design requires increased manufacturing costs, because the plurality of profiles must be attached to the formwork and the frame elements. In order to achieve a sufficient stabilizing effect of the longitudinal and transverse bars, they must be connected at many points with the formwork, z. B. with screws or rivets. Even a replacement of a worn or damaged formwork skin is possible due to the large number of attachment points only with great time and expense. Furthermore, the nailability of the formwork is affected by the large-scale investment of the edge regions of the longitudinal and transverse beams on the formwork, since nails hammered from the front into the formwork can completely penetrate the formwork only in those formwork areas in which the formwork on any of the longitudinal or . Transverse bar of the support frame rests. In addition, the frame panel formwork element has a great weight and is therefore difficult to handle.
Aufgabe der Erfindung Object of the invention
Es ist deshalb die Aufgabe der Erfindung, ein Rahmentafelschalungselement zur Herstellung von Betonbauteilen mit hohen Steifigkeits- und Festigkeitswerten anzugeben, das insgesamt einfacher und kostengünstiger herzustellen ist, und bei dem die Schalhaut bei einer weiter verbesserten Nagelbarkeit zugleich kompakter ausgeführt werden kann. Es ist weiterhin Aufgabe der Erfindung, eine Schalung mit mehreren solcher Rahmentafelschalungselemente anzugeben.  It is therefore an object of the invention to provide a frame sheet formwork element for the production of concrete components with high stiffness and strength values, which is generally simpler and cheaper to produce, and in which the formwork can be made more compact at the same time improved nailability. It is a further object of the invention to provide a formwork with a plurality of such frame panel formwork elements.
Kurze Beschreibung der Erfindung Brief description of the invention
Diese Aufgabe wird erfindungsgemäß durch ein Rahmentafelschalungselement zur Herstellung von Betonbauteilen mit den im Patentanspruch 1 angegebenen Merkmalen sowie durch eine Schalung gemäß Patentanspruch 15 gelöst. Durch das Stützgitter, das kraftschlüssig mit dem Tragrahmen verbunden ist, kann sichergestellt werden, dass sich die Schalhaut unter dem Druck des Frischbetons nicht übermäßig durchbiegt. Das Stützgitter überspannt dabei eine in dem umlaufenden Tragrahmen ausgebildete Öffnung. Die Schalhaut liegt, vorzugsweise auf der gesamten Fläche des Stützgitters, an dem Stützgitter an und wird von dem Stützgitter rückseitig abgestützt. Dadurch ist auch bei einer Dicke des Stützgitters von weniger als der Hälfte der Dicke des Tragrahmens eine gute Abstützwirkung der Schalhaut gegeben, ohne dass das Stützgitter dafür unnötig schwer ausgeführt werden muss. Durch die erfindungsgemäße Integration eines flächigen und relativ zum Tragrahmen dünnen Schalhaut- Stützgitters in das Rahmentafelschalungselement kann die Schalhaut insgesamt dünner ausgeführt werden. Dies spart Kosten und Gewicht. Letzteres kommt der Handhabbarkeit des Rahmentafelschalungs-elements zugute. Das am Tragrahmen befestigte Stützgitter kann beim Betoniervorgang darüber hinaus aus dem Frischbetondruck resultierende Schub-, Zug- bzw. Druckkräfte aufnehmen, so dass der Tragrahmen selbst insgesamt dünner und damit leichter ausgeführt werden kann. Durch die flächige Schalhautabstützung am Stützgitter kann für die Schalhaut außerdem ein Werkstoff mit geringerer Eigensteifigkeit verwendet werden. Der Werkstoff der Schalhaut kann daher bei dem erfindungsgemäßen Rahmentafelschalungselement ohne die bei konventionellen Rahmentafelschalungselementen bestehenden Einschränkungen weitgehend frei gewählt werden. Insbesondere kann der Werkstoff der Schalhaut im Hinblick auf seine die Qualität des herzustellenden Betonbauteils beeinflussenden Eigenschaften optimiert werden. Genauso kann verstärktes Augenmerk auf Eigenschaften wie Nagelbarkeit, Abriebfestigkeit oder Recyclingfähigkeit (Sortenreinheit des Schalhautmaterials) der Schalhaut gelegt werden. This object is achieved by a frame sheet formwork element for the production of concrete components with the features specified in claim 1 and by a formwork according to claim 15. By the support grid, which is non-positively connected to the support frame, it can be ensured that the formwork does not bend excessively under the pressure of the fresh concrete. The support grid spans an opening formed in the peripheral support frame. The formwork skin rests, preferably on the entire surface of the support grid, on the support grid and is supported on the back by the support grid. As a result, even with a thickness of the support grid of less than half the thickness of the support frame, a good supporting effect of the formwork is given, without the support grid must be made unnecessarily difficult. The inventive integration of a flat and relative to the support frame thin formwork support grid in the frame panel formwork element, the formwork skin can be made thinner overall. This saves costs and weight. The latter benefits the handling of the frame panel formwork element. The support grid attached to the support frame can record during the concreting process beyond the fresh concrete pressure resulting shear, tensile or compressive forces, so that the support frame itself can be made thinner overall and thus easier. The flat formwork support on the support grid also makes it possible to use a material with lower inherent rigidity for the formwork. The material of the formwork skin can therefore be largely freely selected in the frame panel formwork element according to the invention without the existing limitations in conventional frame panel formwork elements. In particular, the material of the formwork can be optimized in terms of its properties affecting the quality of the concrete component to be produced. Likewise, increased attention can be paid to properties such as nailability, abrasion resistance or recyclability (type purity of the formwork material) of the formwork.
Unter dem Stützgitter wird in der vorliegenden Anmeldung ein flächenhaftes, im Wesentlichen plattenförmiges Gitterelement mit Strukturelementen verstanden, zwischen denen eine Vielzahl von Maschen bzw. Durchbrüchen/Ausnehmungen ausgebildet sind. Das Stützgitter kann mit anderen Worten im Sinne eines Gitterrosts aufgefasst werden. - - In the present application, the supporting grid is understood to mean a planar, substantially plate-shaped grid element with structural elements, between which a multiplicity of meshes or openings / recesses are formed. The support grid can be understood in other words in the sense of a grid. - -
Das Stützgitter umfasst eine Mehrzahl von Strukturelementen, die jeweils entlang einer ersten bzw. entlang einer zweiten Richtung ausgerichtet und voneinander beabstandet angeordnet sind, so dass sich Strukturelemente entlang der ersten Richtung mit Strukturelementen entlang der zweiten Richtung kreuzen. Die Strukturelemente der ersten und der zweiten Richtung können sich erfindungsgemäß derart kreuzen, dass die Maschen bzw. Ausnehmungen zwischen den Strukturelementen jeweils Innenwinkel zwischen 30° und 90° bzw. zwischen 150° und 90° aufweisen. Die Abstände zwischen benachbarten Strukturelementen einer jeden Richtung, gemessen orthogonal zu den Strukturelementen, können innerhalb des gesamten Stützgitters gleich groß sein. Darüber hinaus können die Abstände zwischen benachbarten Strukturelementen entlang beider Richtungen gleich groß sein. The support grid includes a plurality of structural elements, each aligned along and spaced from one another along a second direction, such that structural elements intersect along the first direction with structural elements along the second direction. According to the invention, the structural elements of the first and the second direction can intersect in such a way that the meshes or recesses between the structural elements in each case have internal angles between 30 ° and 90 ° or between 150 ° and 90 °. The distances between adjacent structural elements of each direction, measured orthogonal to the structural elements, may be the same throughout the entire support grid. In addition, the distances between adjacent features may be equal along both directions.
Durch die Abstützung der Schalhaut an dem Stützgitter kann die Anzahl von Aussteifungsprofilen (insbesondere Längs- und/oder Querstreben) des Tragrahmens verringert werden oder es kann sogar vollständig auf solche Aussteifungsprofile verzichtet werden. Dadurch wird eine insgesamt einfachere und kostengünstigere Fertigung des Rahmentafelschalungselements sowie ein verringertes Gewicht des Rahmentafelschalungselements ermöglicht. Bei besonders hohen Anforderungen an das Lastaufnahmevermögen und die Verwindungssteifigkeit des Rahmentafelschalungselements kann der Tragrahmen selbstverständlich derartige Aussteifungsprofile aufweisen. By supporting the formwork on the support grid, the number of stiffening profiles (in particular longitudinal and / or transverse struts) of the support frame can be reduced or it can even be completely dispensed with such stiffening profiles. As a result, an overall simpler and more cost-effective production of the frame panel formwork element and a reduced weight of the frame panel formwork element is made possible. For particularly high demands on the load-carrying capacity and the torsional stiffness of the frame panel formwork element, the support frame can of course have such stiffening profiles.
Der Tragrahmen des Rahmentafelschalungselements kann in an sich bekannter Weise aus umlaufend angeordneten Rahmenprofilen bzw. Profilelementen gebildet sein. Insbesondere kann der Tragrahmen miteinander verbundene, z. B. miteinander verschweißte, Hohlprofile, wie beispielsweise Rechteckrohre, umfassen. Die Profilelemente des Tragrahmens dienen ferner in an sich bekannter Weise dazu, mehrere Rahmentafelschalungselemente miteinander verbinden zu können. Durch den Einsatz des Stützgitters kann dabei sichergestellt werden, dass an dem umlaufenden Tragrahmen genügend Platz zum Anbringen von Richtschlössern verbleibt. Der umlaufende Tragrahmen wirkt darüber hinaus als Kantenschutz für die Schalhaut. Der Tragrahmen kann - - beispielsweise aus Stahl, Aluminium oder auch aus einem Faserverbundwerkstoff bestehen. The support frame of the frame panel formwork element can be formed in a manner known per se from circumferentially arranged frame profiles or profile elements. In particular, the support frame interconnected, z. B. welded together, hollow sections, such as rectangular tubes include. The profile elements of the support frame are also used in a conventional manner to be able to connect several frame panel formwork together. Through the use of the support grid can be ensured that remains on the rotating support frame enough space for attaching straightening locks. The surrounding support frame also acts as edge protection for the formwork. The support frame can - - For example, made of steel, aluminum or fiber composite material.
Die Strukturelemente des Stützgitters weisen bevorzugt eine mittlere Dicke quer zu einer Längsrichtung der Strukturelemente auf, die wesentlich geringer ist, als die Dicke des Stützgitters, gemessen senkrecht zu der Ebene, in der sich das Stützgitter erstreckt bzw. die durch das Stützgitter aufgespannt ist. Die Dicke des Stützgitters entspricht dabei der (Bau-)Höhe der Strukturelemente. The structural elements of the support grid preferably have an average thickness transverse to a longitudinal direction of the structural elements, which is substantially smaller than the thickness of the support grid, measured perpendicular to the plane in which the support grid extends or which is spanned by the support grid. The thickness of the support grid corresponds to the (construction) height of the structural elements.
Die Dicke der Strukturelemente kann nach der Erfindung insbesondere weniger als die Hälfte, bevorzugt weniger als ein Viertel, der Höhe der Strukturelemente betragen. The thickness of the structural elements according to the invention can be in particular less than half, preferably less than a quarter, of the height of the structural elements.
Weiterhin kann die mittlere Dicke der Strukturelemente des Stützgitters vorzugsweise kleiner als der Abstand zweier benachbarter Strukturelemente entlang einer gemeinsamen Richtung sein. Typischerweise ist der Abstand zweier benachbarter Strukturelemente mehr als fünfmal, bevorzugt mehr als zehnmal so groß wie die mittlere Dicke der Strukturelemente. Furthermore, the average thickness of the structural elements of the support grid may preferably be smaller than the distance between two adjacent structural elements along a common direction. Typically, the distance between two adjacent structural elements is more than five times, preferably more than ten times as large as the average thickness of the structural elements.
Die Strukturelemente können unter fertigungstechnischen Aspekten vorteilhaft als Vollmaterial ausgeführt sein. Die Strukturelemente können beispielsweise einen runden, einen polygonalen, insbesondere rechteckigen oder auch einen elliptischen bzw. ovalen Querschnitt aufweisen. The structural elements can advantageously be embodied as a solid material under production engineering aspects. The structural elements may, for example, have a round, a polygonal, in particular rectangular or else an elliptical or oval cross section.
Das Stützgitter kann nach einer bevorzugten Ausführungsform des Rahmentafelschalungselements insbesondere einstückig ausgebildet sein. Ein solches Stützgitter ist kostengünstig herzustellen und kann zugleich mit einem hohen Lastaufnahmevermögen realisiert werden. The support grid may in particular be formed in one piece according to a preferred embodiment of the frame panel formwork element. Such a support grid is inexpensive to manufacture and can be realized at the same time with a high load capacity.
Alternativ kann das Stützgitter miteinander verklemmte oder miteinander verschweißte Strukturelemente umfassen. Die Strukturelemente können dabei insbesondere als Flachprofile ausgeführt sein. Die Schalhaut des erfindungsgemäßen Rahmentafelschalungselements kann aus einem beliebigen geeigneten Werkstoff oder Werkstoffverbund bestehen. Insbesondere kann sie z. B. aus Holz, einem Holzwerkstoff, einer Multiplex-Platte oder aus einem Kunststoff, insbesondere einem faserverstärktem Kunststoff oder aus einem mehrlagigen Kunststofflaminat, gefertigt sein. Es versteht sich, dass die Schalhaut in bekannter Weise vorderseitig beschichtet sein kann, um das Ausschalen des Rahmentafelschalungselements zu erleichtern bzw. die Oberflächengüte der herzustellenden Betonbauteile zu verbessern. Alternatively, the support grid may comprise structural elements which are jammed or welded together. The structural elements can be designed in particular as flat profiles. The formwork skin of the frame panel formwork element according to the invention may consist of any suitable material or composite material. In particular, it may, for. Example of wood, a wood material, a multiplex board or a plastic, in particular a fiber-reinforced plastic or a multilayer plastic laminate, be made. It is understood that the formwork can be coated in a known manner on the front side to facilitate the stripping of the frame panel formwork element or to improve the surface quality of the concrete components to be produced.
Die Schalhaut ist vorzugsweise lösbar am Tragrahmen befestigt, um diese bei Verschleiß oder Beschädigung auf einfache und kostengünstige Weise austauschen zu können. Darüber hinaus kann die Schalhaut dadurch auch bei Bedarf an die gewünschte Betonoberflächengüte bzw. -struktur, angepasst werden. Unter einer lösbaren Befestigung wird vorliegend eine Befestigung verstanden, bei der beim Lösen der Befestigung allenfalls die Befestigungsmittel, wie beispielsweise Schrauben oder Nieten, beschädigt oder zerstört werden, während die mit den Befestigungsmitteln verbundenen Bauteile, hier insbesondere die Schalhaut, der Tragrahmen und das Stützgitter, nicht beschädigt werden. The formwork is preferably releasably secured to the support frame to replace them in case of wear or damage in a simple and cost-effective manner. In addition, the formwork can thereby be adapted to the desired Betonoberflächengüte or structure, if necessary. In the present case, a releasable fastening means a fastening in which, at least, the fastening means, such as, for example, screws or rivets, are damaged or destroyed during the loosening of the fastening, while the components connected to the fastening means, in particular the formlining, the supporting frame and the supporting grid, not be damaged.
Nach einer bevorzugten Ausführungsform des Rahmentafelschalungselements ist das Stützgitter umlaufend am Tragrahmen befestigt. In diesem Fall ist das Stützgitter mithin an allen umlaufenden Rahmenprofilen bzw. Profilelementen des Tragrahmens (insbesondere direkt) befestigt. Dadurch kann eine besonders steife und sichere Anbindung des Stützgitters am Tragrahmen erreicht werden. Somit wird auch die Schalhaut besonders gut abgestützt. Darüber hinaus kann der Tragrahmen durch das Stützgitter selbst ausgesteift werden. Die Profilelemente des Tragrahmens können dadurch jeweils mit einem geringeren Querschnitt bzw. mit einer geringeren Wandstärke realisiert werden. Dies bietet weitere Kosten- und Gewichtsvorteile. According to a preferred embodiment of the frame panel formwork element, the support grid is fixed circumferentially on the support frame. In this case, the support grid is thus attached to all peripheral frame profiles or profile elements of the support frame (especially directly). This allows a particularly rigid and secure connection of the support grid can be achieved on the support frame. Thus, the formwork is supported particularly well. In addition, the support frame can be stiffened by the support grid itself. The profile elements of the support frame can be realized in each case with a smaller cross-section or with a smaller wall thickness. This offers further cost and weight advantages.
Das Stützgitter kann nach einer Ausführungsform der Erfindung an Innenwandabschnitten des Tragrahmens befestigt sein. Eine Vorderseite des - - The support grid may be attached to inner wall portions of the support frame according to an embodiment of the invention. A front of the - -
Stützgitters ist dabei vorzugsweise mit der Vorderseite des Tragrahmens bzw. dessen Profilelementen bündig ausgerichtet. Dadurch kann durch den Tragrahmen und das Stützgitter eine stufenfreie und plane Anlagefiäche für die Schalhaut bereitgestellt werden. Die Schalhaut liegt dann mit einem ersten Teilbereich am Tragrahmen und mit einem zweiten Teilbereich am Stützgitter abgestützt an. Es versteht sich, dass die Profilelemente des Tragrahmens mit einem (hochgezogenen) Profilrand versehen sein können, der die Schalhaut umfangsseitig, d. h. seitlich, schützend übergreift, um Beschädigungen an der Stirnkante der Schalhaut beim Transport sowie beim Baustelleneinsatz des Rahmentafelschalungselements entgegenzuwirken. Support grid is preferably aligned flush with the front of the support frame or its profile elements. This can be provided by the support frame and the support grid a stepless and plane Anlagefiäche for the formwork. The formwork skin is then supported with a first portion on the support frame and with a second portion supported on the support grid. It is understood that the profile elements of the support frame can be provided with a (raised) profile edge, the peripheral side of the formwork, d. H. laterally, overlaps protectively to counteract damage to the front edge of the formwork during transport and during construction site use of the frame panel formwork element.
Das Stützgitter kann an den Innenwandabschnitten vorteilhaft festgeklebt oder festgeschweißt sein. Durch die Anlage des Stützgitters an Innenwandabschnitten des Tragrahmens kann die Positionierung des Stützgitters bei der Fertigung des Rahmentafelschalungselements vereinfacht werden. Alternativ kann das Stützgitter am Tragrahmen angeschraubt oder mit diesem vernietet sein. The support grid may advantageously be glued or welded to the inner wall sections. By placing the support grid on inner wall portions of the support frame, the positioning of the support grid in the manufacture of the frame panel formwork element can be simplified. Alternatively, the support grid can be screwed to the support frame or riveted to it.
Nach der Erfindung kann das Stützgitter formschlüssig am Tragrahmen festgelegt sein. Das Stützgitter kann dann besonders einfach eingebaut werden. Durch die formschlüssige Anlage wird die korrekte Positionierung des Stützgitters am Tragrahmen bei der Montage des Rahmentafelschalungselements vereinfacht. Insbesondere ist bei dieser Ausführungsform nur darauf zu achten, eine Vorderseite des Stützgitters präzise zu fertigen und korrekt ausgerichtet am Tragrahmen festzulegen, so dass die Abstützung der Schalhaut gewährleistet ist. In derjenigen Ebene, in der sich das Stützgitter erstreckt, kann ein gewisses Spiel, etwa in der Größenordnung einer halben Maschenweite, relativ zu dem Tragrahmen bestehen, ohne dass dadurch die Funktion des Rahmentafelschalungselements beeinträchtigt wird. According to the invention, the support grid can be fixed positively on the support frame. The support grid can then be installed very easily. Due to the positive engagement, the correct positioning of the support grid on the support frame during assembly of the frame panel formwork element is simplified. In particular, care must be taken in this embodiment only to make a front of the support grid precisely and set correctly aligned on the support frame, so that the support of the formwork skin is guaranteed. In the plane in which the support grid extends, a certain play, on the order of a half mesh size, can exist relative to the support frame without impairing the function of the frame panel formwork element.
Nach einer bevorzugten Weiterbildung der Erfindung ist das Stützgitter zwischen der Schalhaut und dem Tragrahmen geklemmt gehalten angeordnet. Das Stützgitter wird dabei zwischen der Schalhaut und am Tragrahmen angeordneten oder ausgebildeten Anlageelementen fixiert. Dies vereinfacht die Montage des Rahmentafelschalungselements, indem das Stützgitter beim Befestigen der Schalhaut am Tragrahmen ohne zusätzlichen Aufwand festgelegt werden kann. According to a preferred embodiment of the invention, the support grid is arranged clamped between the formwork skin and the support frame. The support grid is thereby fixed between the formwork skin and arranged on the support frame or trained investment elements. This simplifies the assembly of the Frame panel formwork element by the support grid when attaching the formwork to the support frame can be determined without additional effort.
Das Stützgitter kann mit dem Tragrahmen erfindungsgemäß verschweißt, verschraubt, vernietet und/oder verklebt sein. Damit ist eine sichere Verbindung von Stützgitter und Tragrahmen gewährleistet, die bei der Fertigung des Rahmentafelschalungselements in einfacher Weise umgesetzt werden kann. The support grid can be welded to the support frame according to the invention, screwed, riveted and / or glued. For a secure connection of support grid and support frame is ensured, which can be implemented in the manufacture of the frame panel formwork element in a simple manner.
Der Großteil der Schalhaut kann lichtundurchlässig ausgebildet sein. Insbesondere kann mehr als 70%, vorzugsweise mehr als 90%, der von der Schalhaut aufgespannten Fläche lichtundurchlässig ausgebildet sein. Besonders bevorzugt ist die Schalhaut vollständig lichtundurchlässig ausgebildet. The majority of the formwork can be made opaque. In particular, more than 70%, preferably more than 90%, of the surface formed by the formwork skin may be made opaque to light. Particularly preferably, the formwork skin is completely opaque.
Alternativ oder zusätzlich dazu kann der Großteil der von der Schalhaut aufgespannten Fläche wasserundurchlässig sein. Insbesondere kann mehr als 70%, vorzugsweise mehr als 90%, der von der Schalhaut aufgespannten Fläche wasserundurchlässig ausgebildet sein. Besonders bevorzugt ist die Schalhaut vollständig wasserundurchlässig ausgebildet. Alternatively or additionally, the majority of the surface formed by the formwork skin may be water impermeable. In particular, more than 70%, preferably more than 90%, of the surface formed by the formwork skin may be made impermeable to water. Particularly preferably, the formwork skin is completely impermeable to water.
Das Stützgitter kann insbesondere aus gekreuzten Strukturelementen gebildet sein, die stoffschlüssig miteinander verbunden sind. Dadurch wird eine besonders große Steifigkeit und Festigkeit des Stützgitters erreicht. The support grid may in particular be formed of crossed structural elements which are connected to one another in a material-locking manner. As a result, a particularly high rigidity and strength of the support grid is achieved.
Unter fertigungstechnischen Aspekten ist das Stützgitter vorzugsweise als ein Streckgitter ausgeführt. Das Streckgitter kann insbesondere aus Stahl oder Aluminium bestehen, d. h. durch ein Streckmetall gebildet sein. Die Maschen des aus Tafeln oder Bändern gefertigten gitterartigen Materials sind dabei weder geflochten noch geschweißt. Das Streckmetall kann beispielsweise Rautenmaschen, Sechseckmaschen oder Quadratmaschen aufweisen. Ein solches Streckgitter bzw. Streckmetall ist am Markt kostengünstig vorkonfektioniert verfügbar. Under production engineering aspects, the support grid is preferably designed as a stretched grid. The expanded metal can in particular consist of steel or aluminum, d. H. be formed by an expanded metal. The stitches of the grid-like material made from sheets or strips are neither braided nor welded. The expanded metal may have, for example, diamond meshes, hexagonal meshes or square meshes. Such expanded metal or expanded metal is available inexpensively on the market prefabricated.
Das Stütz- bzw. Streckgitter kann darüber hinaus auch aus Kunststoff bestehen. Als Kunststoff ist insbesondere ein faserverstärkter Kunststoff, z. B. ein glasfaserverstärkter Kunststoff, geeignet. Mit diesen Werkstoffen kann einerseits die notwendige Stabilität des Stützgitters erreicht werden, ohne dabei das Gewicht des Rahmentafelschalungselements unnötig zu vergrößern. Andererseits bietet das Rahmentafelschalungselement dadurch beim Einsatz in korrosiven Umgebungen Vorteile. In addition, the support or expanded metal can also be made of plastic. As a plastic is in particular a fiber reinforced plastic, z. As a glass fiber reinforced plastic, suitable. With these materials, on the one hand, the necessary stability of the support grid can be achieved without unnecessarily increasing the weight of the frame panel formwork element. On the other hand, the frame panel formwork element thereby offers advantages when used in corrosive environments.
Nach einer besonders bevorzugten Weiterbildung der Erfindung weisen die vorgenannten Strukturelemente des Stützgitters einen sich zur Schalhaut hin zumindest teilweise verjüngenden Querschnitt auf. Dadurch steht nur ein kleiner Flächenanteil der Schalhautrückseite in direktem Kontakt mit dem Stützgitter, während die Stabilität des Stützgitters und damit seine Stützwirkung erhalten bleiben. Durch den lokal eng begrenzten Kontakt von Stützgitter und Schalhaut wird die Nagelbarkeit der Schalhaut verbessert. Nägel oder Schrauben, die zur Befestigung von Anbauteilen an der Schalhaut von vorne in die Schalhaut eingeschlagen bzw. eingeschraubt werden und diese durchdringen, können beim Auftreffen auf das Stützgitter von den Schrägseiten (= Seitenflanken) der Strukturelemente in die von den Maschen des Stützgitters gebildeten Freiräume abgeleitet werden. According to a particularly preferred development of the invention, the aforementioned structural elements of the support grid have a cross-section which is at least partially tapering towards the formwork skin. As a result, only a small area of the formwork back is in direct contact with the support grid, while the stability of the support grid and thus its supporting effect are maintained. Due to the locally limited contact of support grid and formwork skin, the nailability of the formwork skin is improved. Nails or screws, which are taken or screwed into the formwork for attachment of attachments to the formwork from the front and penetrate this, when hitting the support grid from the oblique sides (= side edges) of the structural elements in the free spaces formed by the mesh of the support grid be derived.
Eine weitere bevorzugte Ausführungsform der Erfindung sieht vor, dass das Stützgitter eine maximale Maschenweite aufweist, die kleiner ist als eine Breite eines Profilelements des umlaufenden Tragrahmens. Die Breite des Profilelements wird dabei senkrecht zu einer Längsrichtung des Profilelements und parallel zur Ebene der Schalhaut gemessen. Die Abstützung der Schalhaut erfolgt in diesem Fall besonders gleichmäßig. Weiterhin können die Strukturelemente dünner ausgeführt werden, da durch die größere Anzahl an Strukturelementen die mechanische Stabilität des Stützgitters sichergestellt wird. Dadurch kann die Nagelbarkeit bzw. die Schraubbarkeit der Schalhaut nochmals weiter verbessert werden. A further preferred embodiment of the invention provides that the support grid has a maximum mesh size which is smaller than a width of a profile element of the peripheral support frame. The width of the profile element is measured perpendicular to a longitudinal direction of the profile element and parallel to the plane of the formwork skin. The support of the formwork in this case is particularly even. Furthermore, the structural elements can be made thinner, since the mechanical stability of the support grid is ensured by the larger number of structural elements. As a result, the nailability or the ability to screw the formwork skin can be further improved.
Das Stützgitter kann erfindungsgemäß zwei oder auch mehr Flächenbereiche aufweisen, die sich in ihrer maximalen Maschenweite voneinander unterscheiden. - - The support grid may according to the invention have two or more surface areas, which differ in their maximum mesh size from each other. - -
Die maximale Maschenweite der einzelnen Flächenbereiche ist dabei vorzugsweise auf eine beim Betriebseinsatz des Rahmentafelschalungselements jeweils zu erwartende Frischbetondruckbelastung des Flächenbereichs bzw. des daran abgestützten Schalhautflächenbereichs ausgerichtet, um so eine hinreichende Schalhautabstützung zu gewährleisten. The maximum mesh size of the individual area regions is preferably aligned with a fresh concrete pressure load of the surface area or the shell surface area supported thereon during operation of the frame panel formwork element in order to ensure adequate formwork skin support.
Bei einer besonders bevorzugten Ausführungsform eines erfindungsgemäßen Rahmentafelschalungselements kann die Schalhaut von hinten mit durch das Stützgitter ragenden Schrauben an dem Stützgitter und an dem Tragrahmen befestigt sein. Die Schrauben ragen dabei vorzugsweise vorderseitig nicht aus der Schalhaut heraus. Durch diese Art der Verschraubung ist die Befestigung der Schalhaut besonders einfach möglich. Das Stützgitter kann dabei wie vorstehend erläutert am Tragrahmen festgelegt sein. Insbesondere können sich die Schrauben zur Befestigung der Schalhaut direkt rückseitig am Stützgitter abstützen. Das Stützgitter kann dabei beispielsweise mit dem Tragrahmen verschweißt sein. Alternativ können Anlageelemente vorgesehen sein, an denen vorderseitig das Stützgitter anliegt. Rückseitig dieser Anlageelemente können sich dann die Schrauben abstützen und durch die Anlageelemente und das Stützgitter hindurch in die Schalhaut eingreifen, so dass Schalhaut, Stützgitter und Tragrahmen fest miteinander verbunden werden. Durch die rückseitige Verschraubung mit die Schalhaut nicht durchragenden Schrauben wird weiterhin eine ebene Schalhautvorderseite ohne Störstellen ermöglicht, wodurch die optische Qualitätsanmutung der hergestellten Betonbauteile verbessert wird. In a particularly preferred embodiment of a frame panel formwork element according to the invention, the formwork skin can be fastened to the support grid and to the support frame from behind by bolts projecting through the support grid. The screws preferably do not project out of the formwork on the front side. By this type of screw the attachment of the formwork is particularly easy. The support grid can be defined as explained above on the support frame. In particular, the screws for fixing the formwork can be supported directly on the back of the support grid. The support grid can be welded, for example, with the support frame. Alternatively, contact elements can be provided, against which the support grid rests on the front side. The back of this investment elements can then support the screws and engage through the contact elements and the support grid into the formwork, so that formwork, support grid and support frame are firmly connected. By the back screw with the formwork not protruding screws a flat formwork facing side is still possible without impurities, whereby the visual appearance quality of the concrete components produced is improved.
Der Tragrahmen des Rahmentafelschalungselements kann im Wesentlichen nur aus umlaufend angeordneten Profilelementen bestehen, d. h. der Tragrahmen weist keine weiteren Längs- oder Querriegel auf, die eine in dem Tragrahmen ausgebildete Öffnung überspannen. In diesem Fall überspannt allein das Stützgitter die in/von dem Tragrahmen ausgebildete Öffnung. Dadurch kann das Rahmentafelschalungselement in Leichtbauweise ausgeführt und zugleich die Herstellung des Rahmentafelschalungselements weiter vereinfacht werden. Diese Ausführungsform des Rahmentafelschalungselements eignet sich insbesondere bei kleineren Baugrößen, bei denen der umlaufende Tragrahmen bereits durch das an ihm befestigte Stützgitter ausreichend stabilisiert wird . The support frame of the frame panel formwork element can consist essentially only of circumferentially arranged profile elements, ie the support frame has no further longitudinal or transverse bar, which span an opening formed in the support frame opening. In this case, only the support grid spans the opening formed in / from the support frame. As a result, the frame panel formwork element can be constructed in a lightweight construction and at the same time the production of the frame panel formwork element can be further simplified. This embodiment of the frame panel formwork element is particularly suitable for smaller sizes, in which the rotating support frame is already sufficiently stabilized by the support grid attached to it.
Es versteht sich, dass der Tragrahmen zusätzlich zum Stützgitter mindestens ein quer und/oder längs verlaufendes Aussteifungsprofil (bevorzugt ein Hohlprofil) aufweisen kann . Das Aussteifungsprofil kann dabei in einer zu den Profilelementen entsprechenden Weise als Hohlprofil ausgebildet sein bzw. einen den Profilelementen entsprechenden Profilquerschnitt aufweisen. Dadurch kann das Lastaufnahmevermögen des Rahmentafelschalungselements weiter erhöht werden. Dies kann insbesondere bei größeren Abmessungen des Rahmentafelschalungselements notwendig sein. Auch eignet sich ein zusätzlich versteiftes Rahmentafelschalungselement besonders zur Herstellung von Betonbauteilen, die einen großen Betondruck auf die Schalhaut ausüben, oder wenn besonders hohe Anforderungen an die Maßhaltigkeit des herzustellenden Betonbauteils gestellt werden. It is understood that the support frame in addition to the support grid at least one transverse and / or longitudinal stiffening profile (preferably a hollow profile) may have. The stiffening profile can be designed as a hollow profile in a manner corresponding to the profile elements or have a profile cross section corresponding profile elements. As a result, the load capacity of the frame panel formwork element can be further increased. This may be necessary in particular for larger dimensions of the frame panel formwork element. Also, an additionally stiffened frame sheet formwork element is particularly suitable for the production of concrete components that exert a large concrete pressure on the formwork, or if particularly high demands are placed on the dimensional accuracy of the concrete component to be produced.
Die erfindungsgemäße Aufgabe weiterhin gelöst durch eine Schalung zur Herstellung einer ortsfesten Betonstruktur, wobei die Schalung zumindest zwei nebeneinander angeordnete, zuvor beschriebene Rahmentafelschalungselemente aufweist. The object according to the invention is furthermore achieved by a formwork for producing a stationary concrete structure, wherein the formwork has at least two frame panel formwork elements arranged next to one another and described above.
Weitere Vorteile der Erfindung ergeben sich aus der Beschreibung und der Zeichnung. Ebenso können die vorstehend genannten und die noch weiterausgeführten Merkmale erfindungsgemäß jeweils einzeln für sich oder zu mehreren in beliebigen Kombinationen Verwendung finden. Die gezeigten und beschriebenen Ausführungsformen sind nicht als abschließende Aufzählung zu verstehen, sondern haben vielmehr beispielhaften Charakter für die Schilderung der Erfindung. Further advantages of the invention will become apparent from the description and the drawings. Likewise, according to the invention, the above-mentioned features and those which are further developed can each be used individually for themselves or for several in any desired combinations. The embodiments shown and described are not to be understood as exhaustive enumeration, but rather have exemplary character for the description of the invention.
Die Erfindung ist und wird nachstehend anhand von in der Zeichnung dargestellten Ausführungsbeispielen näher erläutert. Es zeigen : Fig. 1 ein Rahmentafelschalungselement mit einer teilweise gebrochen dargestellten Schalhaut, einem darunter liegend angeordneten Tragrahmen und mit einem am Tragrahmen befestigten Stützgitter für die Schalhaut, in einer schalhautseitigen Ansicht; The invention is and will be explained below with reference to exemplary embodiments illustrated in the drawing. Show it : Figure 1 is a frame panel formwork with a partially broken formwork facing, a support frame arranged underneath and with a support frame attached to the support frame for the formwork, in a shell-side view.
Fig. 2 das Rahmentafelschalungselement aus Fig. 1 mit dem an Fig. 2, the frame panel formwork of Fig. 1 with the
Innenwandabschnitten des Tragrahmens befestigten Stützgitter, in einer Schnittdarstellung;  Interior wall sections of the support frame fixed support grid, in a sectional view;
Fig, 3 ein Rahmentafelschalungselement, bei dem die Schalhaut und das Fig. 3 is a frame panel formwork element, in which the formwork skin and the
Stützgitter mit am Tragrahmen angeordneten Aniageelementen verschraubt sind, in einer rückseitigen Ansicht;  Support grid are bolted to arranged on the support frame Aniageelementen, in a rear view;
Fig. 4 das Rahmentafelschalungselement aus Fig. 3, in einer Fig. 4, the frame panel formwork of Fig. 3, in a
Schnittdarstellung;  Section;
Fig. 5 das Stützgitter eines Rahmentafelschalungselements gemäß den Fign. 5 shows the support grid of a frame panel formwork element according to FIGS.
1 und 2 mit sich verjüngenden Strukturelementen, wobei die Strukturelemente schmalseitig an der Schalhaut anliegen; und  1 and 2 with tapered structural elements, wherein the structural elements lie on the narrow side of the formwork skin; and
Fig. 6 eine Schalung mit mehreren Rahmentafelschalungselementen. Fig. 6 shows a formwork with several frame panel formwork elements.
Figur 1 zeigt ein erfindungsgemäßes Rahmentafelschalungselement 10 mit einem umlaufenden Tragrahmen 12 und mit einer Schalhaut 14 in einer schalhautseitigen Ansicht. Die Schalhaut 14 ist in Fig. 1 teilweise gebrochen dargestellt, um die dahinter liegenden Bauelemente erkennbar zu machen. Das Rahmentafelschalungselement 10 kann grundsätzlich für Wand- oder Deckenschalungen eingesetzt werden. FIG. 1 shows a frame panel formwork element 10 according to the invention with a circumferential support frame 12 and with a formwork skin 14 in a shell-side view. The formwork skin 14 is shown partially broken in Fig. 1 to make the underlying components recognizable. The frame panel formwork element 10 can basically be used for wall or ceiling formwork.
Der Tragrahmen 12 ist aus einzelnen Profilelementen 16 (= Rahmenprofile) gebildet, die an ihren einander zuweisenden Enden 18 dauerhaft miteinander verbunden sind. Die Profilelemente 16 sind jeweils als Hohlprofile ausgeführt und können insbesondere miteinander verschweißt sein. Der Tragrahmen 12 kann zusätzlich zu den randseitig angeordneten Profilelementen 16 ein oder mehrere quer- bzw. längsverlaufend angeordnete Aussteifungsprofile aufweisen, wie dies in Fig. 1 mit strichlierter Linie (nicht bezeichnet) angedeutet ist. So/che Aussteifungsprofile können beispielsweise einen den Profilelementen 16 des Tragrahmens 12 entsprechenden Querschnitt aufweisen und wie diese jeweils als Hohlprofil ausgebildet sein. The support frame 12 is formed from individual profile elements 16 (= frame profiles), which are permanently connected to each other at their facing ends 18. The profile elements 16 are each designed as hollow profiles and can in particular be welded together. The support frame 12 can in addition to the profile elements 16 arranged at the edge, one or more transverse or longitudinally arranged stiffening profiles have, as indicated in Fig. 1 with a dashed line (not designated). So / che stiffening profiles may for example have a profile elements 16 of the support frame 12 corresponding cross-section and how these may each be formed as a hollow profile.
Der Tragrahmen 12 weist eine Öffnung 20 auf, die durch die einzelnen Profilelemente 16 des Tragrahmens 12 umlaufend begrenzt ist. Im Bereich zwischen den Profilelementen 16 des umlaufenden Tragrahmens 12 ist ein Stützgitter 22 für die Schalhaut 14 angeordnet. Das Stützgitter 22 überdeckt die Öffnung 20 des Tragrahmens 12. Die Schalhaut 14 liegt rückseitig an einer Vorderseite 24 der Profilelemente 16 des umlaufenden Tragrahmens 12 sowie an dem Stützgitter 22 an und ist an diesen abgestützt. Die Schalhaut 14 kann am Tragrahmen 12 in nicht näher gezeigter Weise lösbar befestigt, insbesondere festgeschraubt sein. Es versteht sich, dass die Schalhaut 14 auch am Tragrahmen 12 festgenietet sein kann. The support frame 12 has an opening 20 which is circumferentially bounded by the individual profile elements 16 of the support frame 12. In the area between the profile elements 16 of the peripheral support frame 12, a support grid 22 for the formwork skin 14 is arranged. The support grid 22 covers the opening 20 of the support frame 12. The formwork skin 14 is located at the rear on a front side 24 of the profile elements 16 of the peripheral support frame 12 and on the support grid 22 and is supported on these. The formwork skin 14 may be releasably secured to the support frame 12 in a manner not shown in detail, in particular screwed. It is understood that the formwork 14 can also be riveted to the support frame 12.
Durch das Stützgitter 22 wird verhindert, dass sich die Schalhaut 14 während eines Betriebseinsatzes des ahmentafelschalungselements 10 unter einem an der Schalhaut 14 angreifenden Betondruck weiter als zulässig durchbiegt. Beim konstruktiven Aufbau sowie der Materialwahl der Schalhaut 14 muss dadurch nicht vorrangig auf eine möglichst große Steifigkeit und Festigkeit der Schalhaut geachtet werden, so dass diese dem Betondruck ohne flächige Abstützung gewachsen ist. Vielmehr kann die Schalhaut in ihren Materialeigenschaften spezifisch auf deren Nagelbarkeit, deren Oberflächenstruktur, Ausschalbarkeit, Gewicht, Recyclingfähigkeit (sortenreiner Aufbau), Verschleißbeständigkeit bzw. Abriebfestigkeit ausgelegt werden. Insbesondere kann die Schalhaut 14 insgesamt dünner und somit leichter und kostengünstiger ausgeführt sein. By the support grid 22 prevents the formwork skin 14 during operation of the ahmentafelschalungselements 10 under a acting on the formwork facing 14 concrete pressure continues to bend as permissible. When constructing and choosing the material of the formwork skin 14, it is not necessary to give priority to the greatest possible rigidity and strength of the formwork skin, so that it can withstand the concrete pressure without extensive support. Rather, the formwork can be designed specifically for their nailability, their surface structure, Ausschalbarkeit, weight, recyclability (sorted structure), wear resistance and abrasion resistance in their material properties. In particular, the formwork skin 14 can be made thinner overall and thus lighter and less expensive.
Wie aus Fig. 1 hervorgeht, ist das Stützgitter 22 durch eine Mehrzahl von gekreuzt angeordneten Strukturelementen 26 gebildet. Zwischen den Strukturelementen 26 ist dadurch eine Vielzahl von Maschen 28 ausgebildet. Die - - As is apparent from Fig. 1, the support grid 22 is formed by a plurality of crossed arranged structural elements 26. A plurality of stitches 28 are thereby formed between the structural elements 26. The - -
Maschen 28 können rautenförmig ausgeführt sein, wie dies in Fig. 1 gezeigt ist, oder aber eine andere, beispielsweise quadratische, sechseckige oder auch gerundete, Form aufweisen. Die einzelnen Maschen des Stützgitters weisen erste Winkel al mit al > 90° und zweite Winkel a2 mit a2 < 90° auf. Meshes 28 may be diamond-shaped, as shown in FIG. 1, or have a different shape, for example square, hexagonal or even rounded. The individual meshes of the support grid have first angles al with al> 90 ° and second angles a2 with a2 <90 °.
Die Strukturelemente 26 des Stützgitters 22 können an ihren Kreuzungspunkten 30 stoffschlüssig miteinander verbunden sein, um ein großes Lastaufnahmevermögen des Stützgitters 22 zu realisieren. The structural elements 26 of the support grid 22 may be materially connected to one another at their intersection points 30 in order to realize a large load-bearing capacity of the support grid 22.
Das Stützgitter 22 kann einstückig als ein Streckgitter aus Metall, insbesondere Aluminium, oder aus Kunststoff ausgebildet sein. Im erstgenannten Fall ist das Streckgitter somit als ein sogenanntes Streckmetall ausgebildet. In dem Falle, dass das Streckgitter aus Kunststoff oder einem Kunststoffverbundmaterial besteht, kann das Rahmentafelschalungselement 10 mit einem nochmals geringeren Gewicht realisiert werden. The support grid 22 may be integrally formed as an expanded metal, in particular aluminum, or plastic. In the former case, the expanded metal mesh is thus formed as a so-called expanded metal. In the case that the expanded metal mesh consists of plastic or a plastic composite material, the frame panel formwork element 10 can be realized with an even lower weight.
Die Maschen 28 des Stützgitters 22 weisen eine einheitliche maximale Maschenweite MW auf, die kleiner ist, als die (einheitliche) Breite BP der Profilelemente 16 des umlaufenden Tragrahmens 12. Dadurch kann eine gleichmäßige Abstützung der Schalhaut 14 erreicht werden. Das Stützgitter kann bedarfsweise auch Maschen bzw. Flächenbereiche mit einer unterschiedlichen maximalen Maschenweite MW aufweisen. The meshes 28 of the support grid 22 have a uniform maximum mesh size MW, which is smaller than the (uniform) width BP of the profile elements 16 of the peripheral support frame 12. Thus, a uniform support of the formwork skin 14 can be achieved. If necessary, the support grid can also have meshes or surface areas with a different maximum mesh width MW.
Es versteht sich, dass das Rahmentafelschalungselement 10 in an sich bekannter Weise Bohrungen für das Durchführen von Ankerstäben (nicht gezeigt) aufweisen kann. It is understood that the frame panel formwork element 10 can have bores for the passage of anchor rods (not shown) in a manner known per se.
Figur 2 zeigt das Rahmentafelschalungselement 10 aus Fig. 1 in einer ausschnittsweisen Schnittdarstellung. Das Stützgitter 22 liegt bei dem gezeigten Ausführungsbeispiel an Innenwandabschnitten 32 aller vier Profilelemente 16 des umlaufenden Tragrahmens 12 an und ist mit diesen jeweils verschweißt. Das Stützgitter 22 ist dadurch netzartig zwischen den Profilelementen 16 des Tragrahmens (aufgespannt) gehalten angeordnet. Alternativ oder zusätzlich kann das Stützgitter 22 auch an den Profilelementen 16 des Tragrahmens 12 festgeschraubt, angenietet oder auch mit den Profilelementen 16 verklebt sein. FIG. 2 shows the frame panel formwork element 10 from FIG. 1 in a sectioned sectional view. The support grid 22 is in the illustrated embodiment to inner wall portions 32 of all four profile elements 16 of the rotating support frame 12 and is welded to each of these. The support grid 22 is thereby arranged like a net between the profile elements 16 of the support frame (clamped) held. Alternatively or additionally the support grid 22 also screwed to the profile elements 16 of the support frame 12, riveted or glued to the profile elements 16.
Das Stützgitter 22 ist in Richtung einer zur Schalhaut 14 orthogonal ausgerichteten Achse 34 des Rahmentafelschalungselements 10 zu den Vorderseiten 24 der Profilelemente 16 des umlaufenden Tragrahmens 12 bündig ausgerichtet, um so gemeinsam mit dem Tragrahmen 12 eine stufenfreie und plane Anlage der Schalhaut 14 zu ermöglichen. Die Profilelemente 16 sind aus Gewichtsgründen als Hohlprofile ausgeführt und weisen einen Rechteckquerschnitt auf. The support grid 22 is aligned flush with the front sides 24 of the profile elements 16 of the peripheral support frame 12 in the direction of a formwork orthogonally oriented axis 34 of the frame panel formwork element 10, so as to enable together with the support frame 12, a smooth and planar conditioning of the formwork skin 14. The profile elements 16 are executed for reasons of weight as hollow profiles and have a rectangular cross-section.
Die Dicke DS des Stützgitters 22 beträgt in jedem Falle weniger als die Hälfte der Dicke DT des Tragrahmens 12. Vorliegend beträgt die Dicke DS des Stützgitters 22 weniger als ein Viertel der Dicke DT des Tragrahmens 12. Die Dicke DS des Stützgitters 22 kann auch noch kleiner sein und beispielsweise weniger als ein Achtel der Dicke DT des Tragrahmens 12 betragen. Diese Dicke DS des Stützgitters 22 ist ausreichend, um die gewünschte Stützwirkung für die Schalhaut 14 zu gewährleisten. Gleichzeitig verbleibt dadurch an den Innenwandabschnitten 32 der Profilelemente 16 noch genügend Freiraum, um mehrere Rahmentafelschalungselemente 10, beispielsweise für das Schalen von Wänden, mit Hilfe von Richtschlössern (nicht dargestellt) oder dergl. miteinander verbinden zu können. Es versteht sich, dass der Tragrahmen hierzu in an sich bekannter Weise Hinterschneidungen für die Richtschlösser bzw. Ausnehmungen für andere Verbindungsmittel aufweisen kann (nicht gezeigt). The thickness DS of the support grid 22 is in each case less than half the thickness DT of the support frame 12. In the present case, the thickness DS of the support grid 22 is less than a quarter of the thickness DT of the support frame 12. The thickness DS of the support grid 22 can be even smaller be less than one-eighth of the thickness DT of the support frame 12, for example. This thickness DS of the support grid 22 is sufficient to ensure the desired support effect for the formwork skin 14. At the same time, sufficient free space still remains at the inner wall sections 32 of the profile elements 16 in order to be able to connect a plurality of frame panel formwork elements 10, for example for shelling walls, with the aid of directional locks (not shown) or the like. It is understood that the support frame for this purpose may have in known manner undercuts for the directional locks or recesses for other connecting means (not shown).
Figur 3 zeigt eine rückseitige Ansicht eines weiteren Rahmentafelschalungselements 10, bei dem die Schalhaut 14 durch das Stützgitter 22 hindurch mit dem Tragrahmen 12 verschraubt ist. Der Tragrahmen 12 weist Anlageelemente 36 für das Stützgitter 22 auf. Die Anlageelemente 36 sind am Tragrahmen 12 befestigt, können jedoch auch durch den Tragrahmen 12 ausgebildet sein. Die Anlageelemente 36 sind vorliegend beispielhaft als am Tragrahmen 12 angeschweißte Winkelprofile ausgeführt. Zur gemeinsamen Befestigung des Stützgitters 22 und der Schalhaut 14 am Tragrahmen 12 dienen Schrauben 38, - - die sich durch die Anlageelemente 36 und das Stützgitter 22 hindurcherstrecken und die mit ihrem freien Ende in die Schalhaut 14 eingreifen. Es versteht sich, dass eine Vielzahl solcher Schrauben 38 in Umfangsrichtung des Stützgitters 22 voneinander beabstandet angeordnet sein müssen, um das Stützgitter 22 allseitig am Tragrahmen 12 zu befestigen. FIG. 3 shows a rear view of a further frame panel formwork element 10, in which the formwork skin 14 is screwed to the support frame 12 through the support grid 22. The support frame 12 has abutment elements 36 for the support grid 22. The abutment elements 36 are attached to the support frame 12, but may also be formed by the support frame 12. In the present case, the abutment elements 36 are designed, for example, as angle profiles welded to the support frame 12. For common attachment of the support grid 22 and the formwork 14 on the support frame 12 are screws 38, - - which extend through the contact elements 36 and the support grid 22 and which engage with its free end in the formwork skin 14. It is understood that a plurality of such screws 38 in the circumferential direction of the support grid 22 must be arranged spaced from each other to attach the support grid 22 on all sides of the support frame 12.
Die Figur 4 zeigt das Rahmentafelschalungselement 10 aus Fig. 3 in einem ausschnittsweisen Querschnitt. Die Schrauben 38 stützen sich beispielhaft mit ihren Schraubenköpfen 40 rückseitig an den Anlageelementen 36 ab und erstrecken sich durch Bohrungen 42 der Anlageelemente 36 sowie das Stützgitter 22 hindurch und greifen rückseitig in die Schalhaut 14 ein. FIG. 4 shows the frame panel formwork element 10 from FIG. 3 in a fragmentary cross section. The screws 38 are supported by way of example with their screw heads 40 on the rear side against the abutment elements 36 and extend through bores 42 of the abutment elements 36 and the support grid 22 and engage in the rear of the formwork 14.
Die Länge (nicht bezeichnet) der Schrauben 38 ist jeweils derart gewählt, dass die Schrauben 38 die Schalhaut 14 nicht vollständig durchdringen. Dadurch ist gewährleistet, dass die Schalhaut 14 an ihrer Oberfläche 44 keine Störstellen durch vorstehende Schrauben 38 (oder Nieten bei alternativer Befestigung) aufweist. Mit den erfindungsgemäßen Rahmentafelschalungselement 10 können dadurch Betonbauteile in höchster Sichtbetonqualität hergestellt werden. The length (not labeled) of the screws 38 is in each case selected such that the screws 38 do not completely penetrate the formwork skin 14. This ensures that the formlining 14 has on its surface 44 no impurities by protruding screws 38 (or rivets with alternative attachment). With the frame panel formwork element 10 according to the invention, concrete components of the highest quality of exposed concrete can thereby be produced.
Wie in Fig. 4 gezeigt ist, liegt das Stützgitter 22 auf der Vorderseite 24 des Tragrahmens 12 bzw. dessen Profilelemente 16 unmittelbar auf. Das Stützgitter 22 ist durch die Kraftwirkung der in die Schalhaut 14 eingreifenden Schrauben 38 über die Schalhaut 14 mit dem Tragrahmen 12 verspannt bzw. am Tragrahmen 12 festgelegt. As shown in Fig. 4, the support grid 22 is located on the front side 24 of the support frame 12 and its profile elements 16 directly on. The support grid 22 is clamped by the force of the engaging in the formwork 14 screws 38 on the formwork skin 14 with the support frame 12 and fixed to the support frame 12.
Nach einem in der Zeichnung nicht näher dargestellten Ausführungsbeispiel kann das Stützgitter 22 auch bei rückseitiger Verschraubung vollständig innerhalb der im Tragrahmen 12 ausgebildeten Öffnung 20 angeordnet sein (ähnlich wie bei dem in Fig. 2 gezeigten Ausführungsbeispiel), so dass das Stützgitter 22 außenseitig an die Innenwandabschnitte 32 der Profilelemente 16 des Tragrahmens 12 angrenzt. Die Schalhaut 14 wird dann von den Schrauben 38 an den Tragrahmen 12 gepresst. Das Stützgitter 16 ist in diesem Fall formschlüssig zwischen Schalhaut 14, Innenwandabschnitten 32 des Tragrahmens 12 und den Anlageelementen 36 festgelegt. Bei der in Fig. 4 dargestellten Einbausituation beschränkt sich der Formschluss demgegenüber auf eine Richtung senkrecht zur Ebene der Schalhaut 14. In der Ebene der Schalhaut 14 erfolgt die Fixierung durch Kraftschluss aufgrund der Vorspannung der Schrauben 38. According to an embodiment not shown in detail in the drawing, the support grid 22 may be arranged completely in the back frame in the support frame 12 formed opening 20 (similar to the embodiment shown in Fig. 2), so that the support grid 22 on the outside of the inner wall sections 32 of the profile elements 16 of the support frame 12 adjacent. The formwork skin 14 is then pressed by the screws 38 to the support frame 12. The support grid 16 is in this case form-fitting between formwork skin 14, inner wall portions 32 of the support frame 12 and the Investment elements 36 set. In contrast, in the case of the installation situation shown in FIG. 4, the positive connection is limited to a direction perpendicular to the plane of the formwork skin 14. In the plane of the formwork skin 14, the fixation is effected by adhesion due to the prestressing of the screws 38.
Figur 5 zeigt eine Detailansicht der Kontaktsituation zwischen Schalhaut 14 und Stützgitter 22, wie diese bei den vorstehend im Zusammenhang mit den Figuren 1 bis 4 erläuterten Rahmentafelschalungselementen 10 verwirklicht sein kann. FIG. 5 shows a detailed view of the contact situation between formwork skin 14 and support grid 22, as can be realized in the frame panel formwork elements 10 explained above in connection with FIGS. 1 to 4.
Die Strukturelemente 26 des Stützgitters 22 weisen einen Querschnitt auf, der sich längs der Achse 34 des Rahmentafelschalungselements 10 in Richtung der Schalhaut 14 hin verjüngt. Die Strukturelemente 26 weisen mithin Seitenflanken 46 auf, die zueinander schräg verlaufend angeordnet sind. Die Seitenflanken 46 können insbesondere unter einem schalhautseitigen Flankenwinkel ß mit 90° < ß < 30° zueinander schrägverlaufend angeordnet sein. Dadurch steht bei gleicher Stabilität des Stützgitters 22 im Vergleich zu sich nicht verjüngenden Strukturelementen 26 ein vergleichsweise kleiner Flächenbereich der Schalhaut in direktem Kontakt mit Anlage- und Abstützflächen 48 der Strukturelemente 26 des Stützgitters 22. Dies verbessert die Nagelbarkeit der Schalhaut 14. So treffen von vorne in die Schalhaut 14 eingeschlagene Nägel oder eingeschraubte Schrauben dadurch mit einer geringeren Wahrscheinlichkeit auf ein an der Schalhaut 14 anliegendes Strukturelement 26 des Stützgitters 22. Darüber hinaus können die Nägel/Schrauben von den Schrägseiten bzw. Seitenflanken 46 der Strukturelemente 26 zuverlässig in die Maschen 28 des Stützgitters 16 abgeleitet werden. Wenn die Strukturelemente 26 in Richtung der Schalhaut 14 schmal genug auslaufen, d.h. die Anlageflächen 48 der Strukturelemente 26 für die Schalhaut 14 hinreichend schmal ausgeführt ist, können selbst Nägel, die direkt von vorne auf ein einzelnes Strukturelement 26 treffen, an den Seitenflanken 46 abgelenkt und in die Maschen des Stützgitters 22 abgeleitet werden, wenn die Nägel - wie dies in der Praxis üblich ist - leicht schräg in die Schalhaut 14 eingeschlagen werden. Es versteht sich, dass die Strukturelemente 26 im Hinblick auf die Nagelbarkeit der Schalhaut 14 auch eine andere geeignete Querschnittsform, insbesondere mit konvex ausgeformten Seitenflanken 46, aufweisen können. The structural elements 26 of the support grid 22 have a cross section which tapers along the axis 34 of the frame panel formwork element 10 in the direction of the formwork skin 14. The structural elements 26 thus have side edges 46, which are arranged obliquely to each other. The side edges 46 can be arranged obliquely in particular under a shell-side flank angle β with 90 ° <β <30 °. As a result, with the same stability of the support grid 22 in comparison to non-tapered structural elements 26, a comparatively small surface area of the formwork skin is in direct contact with abutment and support surfaces 48 of the structural elements 26 of the support grid 22. This improves the nailability of the formwork skin 14. Thus meeting from the front in the formwork skin 14 taken nails or screws screwed by thereby less likely to an applied to the formwork skin 14 structural element 26 of the support grid 22. In addition, the nails / screws from the sloping sides or side edges 46 of the structural elements 26 reliably in the mesh 28 of Support grid 16 are derived. If the structural elements 26 taper in the direction of the formwork skin narrow enough, ie, the contact surfaces 48 of the structural elements 26 for the formwork skin 14 is sufficiently narrow, even nails that meet directly from the front of a single structural element 26, deflected at the side edges 46 and are derived in the mesh of the support grid 22 when the nails - as is common in practice - are slightly inclined obliquely into the formwork skin 14. It is understood that the structural elements 26 with regard to the nailability of the formwork skin 14 also another suitable Cross-sectional shape, in particular with convex side edges 46 may have.
Die Strukturelemente 26 sind allesamt stegförmig ausgebildet und weisen eine mittlere Dicke DE auf, die (wesentlich) geringer ist, als die Dicke (Bauhöhe) DS des Stützgitters 22. Die mittlere Dicke DE kann, wie dies in Fig. 5 der Fall ist, rund ein Drittel von DS oder auch weniger betragen. Bevorzugt ist DE kleiner als ein Viertel von DS. Der Abstand zweier benachbarter Strukturelemente 26 kann beispielsweise das Drei- bis Zwanzigfache der mittleren Dicke DE der Strukturelemente 20 betragen. Dadurch wird eine auf das Gewicht des Stützgitters 22 bezogen hohe Stabilität des Stützgitters 16 erreicht. Auch wird die IMagelbarkeit der Schalhaut 14 durch schmale Strukturelemente 26 des Stützgitters 22 verbessert. The structural elements 26 are all web-shaped and have a mean thickness DE which is (substantially) less than the thickness (structural height) DS of the support grid 22. The average thickness DE can, as in FIG. 5, be round a third of DS or even less. Preferably, DE is less than a quarter of DS. The distance between two adjacent structural elements 26 may be, for example, three to twenty times the mean thickness DE of the structural elements 20. As a result, based on the weight of the support grid 22 high stability of the support grid 16 is achieved. Also, the IMailability of the formwork skin 14 is improved by narrow structural elements 26 of the support grid 22.
Figur 6 zeigt eine Schalung 50 mit mehreren zuvor beschriebenen Rahmentafelschalungselementen 10. Die Rahmentafelschalungselemente 10 können durch zumindest ein Schalschloss (nicht gezeigt) der Schalung 50 miteinander verbunden sein. Die Tragrahmen 12 der Rahmentafelschalungselemente 10 liegen abschnittsweise unmittelbar aneinander an. FIG. 6 shows a formwork 50 with a plurality of frame panel formwork elements 10 described above. The frame panel formwork elements 10 can be connected to one another by at least one formwork lock (not shown) of the formwork 50. The support frame 12 of the frame panel formwork elements 10 are partially directly adjacent to each other.
Das erfindungsgemäße Rahmentafelschalungselement 10 kann durch den Einsatz des Stützgitters 22 insgesamt leichter ausgeführt werden, und dadurch in der Praxis einfacher gehandhabt werden. Darüber hinaus kann der Tragrahmen 12 sowie die Schalhaut 14 insgesamt mit einem geringeren Materialeinsatz, d. h. jeweils mit einer verringerten Wandstärke als bislang möglich, realisiert werden. The frame panel formwork element 10 according to the invention can be made lighter overall by the use of the support grid 22, and thereby be handled more easily in practice. In addition, the support frame 12 and the formwork 14 overall with a lower material use, d. H. each with a reduced wall thickness than previously possible, be realized.

Claims

Patentansprüche claims
1. Rahmentafelschalungselement (10) zur Herstellung von Betonbauteilen, mit einem umlaufenden Tragrahmen (12) und mit einer am Tragrahmen (12) befestigten Schalhaut (14), wobei unmittelbar am Tragrahmen (12) ein Stützgitter (22) kraftschlüssig befestigt ist, an dem die Schalhaut (14) rückseitig anliegt und abgestützt ist, und wobei die Dicke (DS) des 1. Frame panel formwork element (10) for the production of concrete components, with a peripheral support frame (12) and with a support frame (12) attached formwork skin (14), wherein directly to the support frame (12) a support grid (22) is fixed non-positively, on the the formwork skin (14) rests on the back and is supported, and wherein the thickness (DS) of the
Stützgitters (22) maximal die Hälfte der Dicke (DT) des Tragrahmens (12) beträgt.  Support grid (22) is at most half the thickness (DT) of the support frame (12).
2. Rahmentafelschalungselement nach Anspruch 1, dadurch gekennzeichnet, dass das Stützgitter (22) umlaufend am Tragrahmen (12) befestigt ist. 2. Frame panel formwork element according to claim 1, characterized in that the support grid (22) is fixed circumferentially on the support frame (12).
3. Rahmentafelschalungselement nach Anspruch 1 oder 2, dadurch 3. Frame panel formwork element according to claim 1 or 2, characterized
gekennzeichnet, dass das Stützgitter (22) an Innenwandabschnitten (32) des Tragrahmens (12) befestigt ist.  in that the support grid (22) is fastened to inner wall sections (32) of the support frame (12).
4. Rahmentafelschalungselement nach einem der vorhergehenden 4. Frame panel formwork element according to one of the preceding
Ansprüche, dadurch gekennzeichnet, dass das Stützgitter (22)  Claims, characterized in that the support grid (22)
formschlüssig an dem Tragrahmen (12) festgelegt ist.  positively fixed to the support frame (12).
5. Rahmentafelschalungselement nach Anspruch 4, dadurch gekennzeichnet, dass das Stützgitter (22) zwischen der Schalhaut (14) und dem 5. Frame panel formwork element according to claim 4, characterized in that the support grid (22) between the formwork skin (14) and the
Tragrahmen (12) geklemmt gehalten angeordnet ist.  Support frame (12) is arranged clamped held.
6. Rahmentafelschalungselement nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Stützgitter (22) mit dem Tragrahmen (12) verschweißt, verschraubt, vernietet und/oder verklebt ist. 6. Frame panel formwork element according to one of claims 1 to 3, characterized in that the support grid (22) to the support frame (12) welded, screwed, riveted and / or glued.
7. Rahmentafelschalungselement nach einem der vorhergehenden 7. Frame panel formwork element according to one of the preceding
Ansprüche, dadurch gekennzeichnet, dass die Schalhaut (14)  Claims, characterized in that the formwork skin (14)
lichtundurchlässig ausgebildet ist. is formed opaque.
8. Rahmentafelschalungselement nach einem der vorhergehenden 8. Frame panel formwork element according to one of the preceding
Ansprüche, dadurch gekennzeichnet, dass die Schalhaut (14)  Claims, characterized in that the formwork skin (14)
wasserundurchlässig ist.  impermeable to water.
9. Rahmentafelschalungselement nach einem der vorhergehenden 9. Frame panel formwork element according to one of the preceding
Ansprüche, dadurch gekennzeichnet, dass das Stützgitter (22) aus Stahl, Aluminium oder aus einem Kunststoff besteht.  Claims, characterized in that the support grid (22) made of steel, aluminum or a plastic.
10. Rahmentafelschalungselement nach einem der vorhergehenden 10. Frame panel formwork element according to one of the preceding
Ansprüche, dadurch gekennzeichnet, dass das Stützgitter (22) aus gekreuzten Strukturelementen (26) gebildet ist, die stoffschlüssig miteinander verbunden sind.  Claims, characterized in that the support grid (22) of crossed structural elements (26) is formed, which are materially interconnected.
11. Rahmentafelschalungselement nach einem der vorhergehenden 11. Frame panel formwork element according to one of the preceding
Ansprüche, dadurch gekennzeichnet, dass das Stützgitter (22) aus einem Streckmetall gebildet ist.  Claims, characterized in that the support grid (22) is formed of an expanded metal.
12. Rahmentafelschalungselement nach einem der vorhergehenden 12. Frame panel formwork element according to one of the preceding
Ansprüche, dadurch gekennzeichnet, dass sich die Strukturelemente (26) des Stützgitters (22) in ihrem Querschnitt zumindest teilweise zur  Claims, characterized in that the structural elements (26) of the support grid (22) in its cross section at least partially to
Schalhaut (14) hin verjüngen.  Rejuvenate the formwork (14).
13. Rahmentafelschalungselement nach einem der vorhergehenden 13. Frame panel formwork element according to one of the preceding
Ansprüche, dadurch gekennzeichnet, dass der umlaufende Tragrahmen (12) Profilelemente (16) mit einer Breite (BP) und das Stützgitter (22) eine maximale Maschenweite (MW) aufweist, wobei die maximale Maschenweite (MW) kleiner ist als die Breite (BP) der Profilelemente (16).  Claims, characterized in that the circumferential support frame (12) profile elements (16) having a width (BP) and the support grid (22) has a maximum mesh size (MW), wherein the maximum mesh size (MW) is smaller than the width (BP ) of the profile elements (16).
14. Rahmentafelschalungselement nach einem der vorhergehenden 14. Frame panel formwork element according to one of the preceding
Ansprüche, dadurch gekennzeichnet, dass die Schalhaut (14) mit  Claims, characterized in that the formwork skin (14) with
Schrauben (38) an dem Stützgitter (22) und an dem Tragrahmen (12) befestigt ist, die sich durch das Stützgitter (22) hindurcherstrecken. Schalung (50) zur Herstellung eines ortsfesten Betonelements, wobei die Schalung (50) mehrere nebeneinander angeordnete Screws (38) on the support grid (22) and on the support frame (12) is fixed, which extend through the support grid (22). Formwork (50) for producing a stationary concrete element, wherein the formwork (50) a plurality of juxtaposed
Rahmentafelschaiungselemente (10) nach einem der Ansprüche 1 bis 14 aufweist. Frame paneling elements (10) according to any one of claims 1 to 14.
EP16701908.2A 2015-01-07 2016-01-07 Frame-panel formwork element Active EP3242983B1 (en)

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DE102015200083.4A DE102015200083A1 (en) 2015-01-07 2015-01-07 Panel formwork element
PCT/EP2016/050209 WO2016110539A1 (en) 2015-01-07 2016-01-07 Frame-panel formwork element

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DE102019216341A1 (en) * 2019-10-23 2021-04-29 Peri Gmbh Computer-aided process for dimensioning a formwork arrangement to be manufactured additively as well as a device for carrying out the process
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GB2206633A (en) * 1987-06-12 1989-01-11 Sgb Group Plc A formwork panel
US5787642A (en) * 1993-06-18 1998-08-04 Paul E. Coyle Storm shutters with light transmittance
DE19636895C2 (en) * 1996-09-11 2000-04-20 Reent Obernolte Gmbh & Co Kg Formwork panel
CN2296385Y (en) * 1996-09-19 1998-11-04 诗豪工业有限公司 Forwork
JP2006183313A (en) * 2004-12-27 2006-07-13 Nippon Rittai Chushajo Kaihatsu Kk Slab form unit and supporting frame unit
CN200985639Y (en) * 2006-12-01 2007-12-05 金永发 Floor moulding plate
IT1393723B1 (en) * 2009-03-27 2012-05-08 Faresin Building Division S P A CASSERATURE STRUCTURE FOR THE EXECUTION OF FLOORS AND THE LIKE
KR101007774B1 (en) * 2010-04-06 2011-01-14 김장식 A recycling euro-form with a strenghten part and its manufacturing method
DE102011057121B4 (en) * 2011-12-29 2013-11-14 Friedr. Ischebeck Gmbh Panel for a system slab formwork and system slab formwork
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CN202937002U (en) * 2012-11-23 2013-05-15 广东浩和建筑股份有限公司 Metal net supporting fabricated formwork

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EP3242983B1 (en) 2018-10-03

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