EP2540933A1 - Élément de coffrage en béton de type plaques - Google Patents

Élément de coffrage en béton de type plaques Download PDF

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Publication number
EP2540933A1
EP2540933A1 EP11172007A EP11172007A EP2540933A1 EP 2540933 A1 EP2540933 A1 EP 2540933A1 EP 11172007 A EP11172007 A EP 11172007A EP 11172007 A EP11172007 A EP 11172007A EP 2540933 A1 EP2540933 A1 EP 2540933A1
Authority
EP
European Patent Office
Prior art keywords
formwork
formwork skin
skin element
element according
longitudinal
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.)
Withdrawn
Application number
EP11172007A
Other languages
German (de)
English (en)
Inventor
Niels Hollmann
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.)
Hofin GmbH
Original Assignee
Hofin 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 Hofin GmbH filed Critical Hofin GmbH
Priority to EP11172007A priority Critical patent/EP2540933A1/fr
Publication of EP2540933A1 publication Critical patent/EP2540933A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements
    • E04G9/05—Forming boards or similar elements the form surface being of plastics
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements
    • E04G2009/023—Forming boards or similar elements with edge protection
    • E04G2009/025—Forming boards or similar elements with edge protection by a flange of the board's frame

Definitions

  • Conventional concreting frame formwork panels consist essentially of a rectangular frame, which has two edge longitudinal members, two edge cross member and typically at least transverse intermediate support, as well as a mounted on the frame formwork.
  • the most widespread, conventional construction is the construction of several crosswise glued together wood veneers and a plastic layer outside on one or both flat sides.
  • Such Schalnosute have a high weight per square meter and typically survive no more than 50 to 100 inserts.
  • Mechanical influences due to the iron reinforcement for the concrete to be cast and concrete vibrators, as well as the rather aggressive concrete sludge, are attributable to the material of the formwork skins.
  • the invention has for its object to provide a formwork skin element available, which is characterized by an optimal combination of high durability and low production costs per square meter.
  • the formwork skin element according to the invention withstands 150 to 200 inserts.
  • Cladding element use is understood as incorporation (eg combined with the framework of a frame formwork) into the overall formwork for the concreting task in question, formwork function during concreting, stripping of the hardened concrete, and storage or transport to the next application ,
  • the molded body of the formwork skin element according to the invention is double-walled and offers - in conjunction with the connecting walls - the best conditions for an outstanding combination of load-carrying capacity and production costs (material weight!).
  • the molding which consists at least for the most part of plastic, can be manufactured inexpensively.
  • the shaped body of the formwork skin element according to the invention may be a fiber-reinforced part, more preferably a fiber-reinforced extrusion part.
  • As reinforcing fibers e.g. Suitable for glass fibers; These can be used in lengths of less than 1 mm.
  • the shaped body of the formwork skin element contains wood fibers.
  • This special training can be realized in the formwork skin element according to the entry paragraph of the application, but also in one or more of the above-discussed, more specific training.
  • the shaped body may be an extrusion part.
  • the wood fibers act as reinforcing fibers and can, but do not have to be used with diameters and lengths in a range like the known glass fibers. The reinforcing effect is similarly good.
  • Hot-plastic plastic-wood fiber mixtures are significantly gentler in the production of the molding for the extrusion screw and the extrusion die as plastic-glass fiber mixtures. Recycle after service life is easier and cheaper because the mill is less stressed.
  • Wood fibers come from renewable resources and are therefore ecologically favorable. It is possible to use several different types of fibers in a molding simultaneously. You can work with about 50 to 70% by weight wood fibers on 100% plastic plus wood fibers.
  • the multilayer formwork made of glued wood veneer described at the beginning has the advantage of being nailable. You can z. B. in a simple manner on the top of the formwork skin of a total formwork wood strips for recesses or the like in the concrete to be produced. By adding wood fibers to the base plastic one can achieve good nailability.
  • a plastic layer is superimposed on the shaped body on the front side or on the front side and on the rear side.
  • This special training can be realized in the formwork skin element according to the entry paragraph of the application, but also in one or more of the above-discussed, more specific training.
  • the plastic layer (s) may be applied by coextrusion during the extrusion of the molded article; but this is not the only way of applying the plastic layer, you can, for. B. extrude one or two plastic layers on a previously prepared molding or at the same time a plurality of juxtaposed, previously prepared moldings.
  • the plastic layer may be connected over its entire surface with the molding.
  • the plastic layer helps to ensure a high surface quality of the concrete and to facilitate the ability of the concrete to be dismantled, and protects the molded body against mechanical damage.
  • the shaped body of the formwork skin element is filled in each case at least partially with foam plastic.
  • foam plastic can be a rigid foam plastic be.
  • the foam plastic may be a prefabricated, inserted into the respective hollow channel molding, which can be pulled out before recycling.
  • the foam plastic filling creates or improves the nailability of the formwork element in the places where it is present.
  • the foam plastic filling prevents penetration of concrete vapors into the interior of the molding, even if the "old" nail holes in the first wall of the molding have not closed well enough.
  • the shaped body of the formwork skin element has at its two transverse sides and / or on at least one longitudinal side in each case at least one machined surface.
  • This special training can be realized in the formwork skin element according to the entry paragraph of the application, but also in one or more of the above-discussed, more specific training.
  • the machined (n) surface (s) result in an improved dimensional accuracy, which is advantageous in the case of the frame formwork when assembled with the frame, but also in the co-positioning of several moldings or shell skin elements.
  • Another object of the invention is a concrete formwork panel, characterized in that it contains a plurality of formwork skin elements, as have been disclosed above, the longitudinal side-to-longitudinal side are positioned side by side.
  • the maximum size of the molding especially on the maximum width of the molding. Therefore, it is a favorable possibility, if one overcomes these limitations, that one produces a formwork panel according to the invention, which includes several Schalhautiata.
  • the plurality of formwork skin elements may be combined to form the unitary formwork facing panel.
  • the adjacent two moldings are in positive engagement with each other, which is bidirectionally effective in the direction perpendicular to the first wall and / or in the lateral direction of the moldings.
  • the formwork panel according to the invention at least one common superimposed plastic layer for a plurality of adjacent moldings, low for all moldings in the formwork panel, front and / or back, provided.
  • This special training can be realized in the formwork panel according to the penultimate, preceding paragraph of the application, but also in a formwork panel according to the last, preceding paragraph of the application, but also in a formwork panel with the features of the two preceding paragraphs together.
  • the use is such that the formwork skin element or the formwork panel is stored at least at three points or at more than three points of his or her length.
  • the formwork skin element or the formwork panel or the compassionschalungstafel is superimposed only in the region of the two ends of the longitudinal extent.
  • the shaped body of the formwork skin element according to the invention or the shaped body of the formwork panel according to the invention are well suited for recycling.
  • Plastic moldings (with or without reinforcing fibers) can be recycled by crushing and remelting. If a plastic layer is present on the molding or the juxtaposition of several moldings, this is not contrary to recycling. Depending on the plastic materials used, the plastic layer will be removed in a first step for recycling or the whole structure will be shredded. For recycling, it is most advantageous if the shaped body and the plastic layer (s) consist of the same type of plastic. Foamed plastic in the hollow channels, if present, is best pulled out prior to recycling.
  • PE polyethylene
  • PP polypropylene
  • PVC polyvinyl chloride
  • the single molded article has a width of at least 115 cm, more particularly a width of at least 175 cm, and more particularly a width of at least 205 cm.
  • Such widths are large enough that the Schalhautelement with a single molded body has such a size that you can use it well alone alone as a formwork on a frame formwork panel or (with or without frame) in a slab formwork.
  • the moldings have a width of 25 to 65 cm, more particularly a width of 25 to 40 cm in a special embodiment.
  • Such narrower moldings are particularly well suited to be combined into several side by side to form a formwork panel according to the invention.
  • the length of the molded article is usually not subject to manufacturing limitations.
  • the molded article or bodies have a length of at least 265 cm, more particularly a length of at least 295 cm.
  • the molded article or bodies have a thickness of 17 to 28 mm, more particularly a thickness of 18 to 24 mm. So you can z. B. produce with a molded body thickness of 20 mm molded body, which can be assembled with conventional frame (as usual for formwork from multi-layer panel of glued wood veneers).
  • the weight of the formwork skin according to the invention is significantly lower than in this common formwork skin.
  • Fig. 1 shows a concrete formwork skin element 2, hereinafter short formwork skin element 2, which is supported by a formwork support supported as part of a concreting formwork suitable.
  • the formwork skin element 2 is plate-like and in plan view (arrow D) is substantially rectangular.
  • the formwork skin element 2 is constructed from a plate-like, in plan view, rectangular shaped body 4, a front-side, first plastic layer 6, and a rear-side, second plastic layer 8.
  • the molded body 4 consists in this embodiment of polyethylene (PE), has a width b of almost 30 cm, has a height h of 20 mm, and has a length I of almost 270 cm.
  • the plastic layers 6, 8 consist in this embodiment of polyethylene (PE). It is possible to provide only the first plastic layer 6 or to provide the shaped body 4 entirely without plastic layers 6, 8.
  • the molded body 4 has a front-side, first wall 10, a rear-side, second wall 12, and connecting walls 14 which, in the case of the cross-sectionally shaped molded body 4, extend at right angles to the first wall 10 and the second wall 12.
  • connecting walls 14 In each case between two adjacent connecting walls 14 extends a rectangular cross-section hollow channel 16 in the longitudinal direction of the shaped body 4. Am in Fig. 1 left end and at in Fig. 2 right end is in each case a half, to the side open hollow channel 16 '.
  • the pitch, in which the connecting walls 14 are provided, in this embodiment is about 30 mm.
  • a rectangular-prismatic foam plastic block 18 is shown, which is just inserted with a tight fit in one of the hollow channels 16.
  • Fig. 2 on the one hand illustrates a modified embodiment of the formwork skin element and on the other hand a concreting frame formwork panel 20, hereinafter referred to as frame formwork panel 20.
  • the frame formwork panel 20 is rectangular in plan view on its front side and has two edge side members 22 (of which in Fig. 2 only the left can be seen), two edge cross members 24 (of which in Fig. 2 only the rear can be seen), and several transverse subcarriers 26 (of which in Fig. 2 a cut transverse intermediate beam 26 can be seen) on.
  • the carrier 22, 24, 26 consist in this embodiment of sheet steel profiles, z. B. but also consist of extruded profiles made of aluminum or an aluminum alloy.
  • the moldings 4 are each attached at least at the two ends to the edge cross members 24, z. B. by screws.
  • Fig. 2 one sees on the left a shaped body 4 in full width b and right next to it a shaped body 4 with only a part of its width b; the remaining width is cut off to the right in the longitudinal direction of the molding 4.
  • the edge side members 22 each have a step.
  • Fig. 2 drawn moldings 4 differ from the in Fig. 1 shown molding 4 in that - as in Fig. 3 shown in detail - is given at the transition between two adjacent moldings 4, a positive engagement of the two moldings 4, in the direction perpendicular to the first wall extending direction (which corresponds to the direction of the top view D) and in the lateral direction of the mold body 4 (ie from the left to the right in Fig. 2 and 3 ) is bidirectionally effective.
  • bidirectional is meant that two adjacent moldings 4 can not shift up or down relative to each other at the junction between them or can not shift to the left or right relative to each other.
  • the in Fig. 2 and Fig. 3 left moldings 4 at its right longitudinal edge on an undercut groove 30.
  • the right adjacent shaped body 4 has at its left longitudinal edge on a longitudinal projection 32.
  • the channel 30 is at its - measured in the direction of the height h - least high point 34 less high than the - measured in the direction of height h - the largest height 36 of the projection 32.
  • the two adjacent moldings 4 can either by relative movement in the longitudinal direction or be brought by relative movement in the transverse direction in the positive engagement. In the latter case, the projection 32 under local elastic deformation of the in Fig. 3 upper gutter end and / or the in Fig. 3 upper projection end are snapped.
  • the in Fig. 3 lead right mold 4 obliquely from right-up to left-down.
  • the in Fig. 3 right mold body 4 counterclockwise relative to the in Fig. 3 Swivel left mold body 4.
  • Fig. 4 shows a way of securing a sleeve 38 provided in the frame 25 for the passage of a tensioning anchor to the frame 25 by means of the relevant molded article 4 (which in turn is fastened to the frame 25 by screws or rivets, for example).
  • the sleeve 38 has in its front end region two outwardly projecting collar 40, each extending to slightly more than half of the circumference of the sleeve 38.
  • the in Fig. 4 lower collar 40 lies down on the step 28 of the frame 25.
  • the second wall 12 of the molded body 4 is so far except that it passes by the movement of the molded body 4 from top to bottom of the two collar 40, so that the second wall 12 also rests down on the step 28 of the frame 25.
  • the first wall 10 of the molded body 4 is less far removed so that it rests down (ie with its front side opposite the front) on the upper collar 40 and thereby presses and fixes the sleeve 38 against the step 28 of the frame 25.
  • Fig. 2 and 4 can be seen a gap 48 between the local edge-side member 22 of the frame 25 and the left edge of the leftmost mold body 4.
  • a resilient sealing strip is introduced in a subsequent manufacturing step.
  • An identical sealing strip is located on the other longitudinal member 22. Analogous sealing strips are present between the edge cross members 24 and the ends of the shaped bodies 4.
  • All moldings 4 are machined at the two ends where the hollow channels 16 terminate to a planar end plane, e.g. sawed or milled so that a good fit in frame 25 results. The same applies to the left edge of the leftmost mold 4 and the right edge of the right mold 4.
  • Both Fig. 2 . 3 . 4 is the frame formwork panel without plastic layers 4, 6 drawn on the moldings 4.
  • each shaped body 4 is at the same time a formwork skin element 2.
  • plastic layers 6, 8 on the front side and / or on the back side.
  • the plastic layer (s) 6 and / or 8 can be made so wide that in each case one or more moldings 4 are covered next to each other by one and the same plastic layer, particularly even all moldings 4 of the relevant formlining panel 20.
  • Such a design has the advantage that the column 42 are covered at the transition of adjacent moldings 4.
  • Fig. 2 visualized creation of a contiguous group of formwork elements 2 or moldings 4 is not limited to the case of an arrangement on the frame 25 of a frame formwork panel 20.
  • the in the Fig. 1 to 4 drawn moldings 4 were all extruded parts. They can be made with reinforcing fibers, in particular wood fibers.
  • the slab formwork from the in Fig. 5 a detail is drawn in plan view, has main carrier 44, which are positioned at a greater distance parallel to each other and rest on invisible columns.
  • main carrier 44 On the main beams 44 are secondary beams 46, which are positioned at right angles to the main beams 44 and at a smaller mutual distance than the main beams 44.
  • secondary beams 46 On the main beams 44 are secondary beams 46, which are positioned at right angles to the main beams 44 and at a smaller mutual distance than the main beams 44.
  • four sub-carriers 46 close to a row of either formwork panels 2 or formwork panels (from several formwork elements) or compassionschalungstafeln (with formwork elements or at least one formwork panel on a frame) on.
  • the longitudinal direction of the formwork skin elements 2 is perpendicular to the longitudinal direction of the secondary supports 46.

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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)
EP11172007A 2011-06-29 2011-06-29 Élément de coffrage en béton de type plaques Withdrawn EP2540933A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11172007A EP2540933A1 (fr) 2011-06-29 2011-06-29 Élément de coffrage en béton de type plaques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11172007A EP2540933A1 (fr) 2011-06-29 2011-06-29 Élément de coffrage en béton de type plaques

Publications (1)

Publication Number Publication Date
EP2540933A1 true EP2540933A1 (fr) 2013-01-02

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EP11172007A Withdrawn EP2540933A1 (fr) 2011-06-29 2011-06-29 Élément de coffrage en béton de type plaques

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EP (1) EP2540933A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013107303A1 (de) * 2013-07-10 2015-01-15 Polytech Gmbh Schaltafel für Betonierungsschalungen
DE102015110129A1 (de) * 2015-06-24 2016-12-29 Guido Schulte Sichtbeton-Schalung
WO2019012477A1 (fr) * 2017-07-14 2019-01-17 Sabic Global Technologies B.V. Objet profilé de forme allongée renforcé par des fibres
DE102018106221A1 (de) * 2018-03-16 2019-09-19 Polytech Gmbh Schalhaut aus Kunststoff für eine Rahmenschalungs-Schaltafel für das Betonieren
CN113463907A (zh) * 2021-07-30 2021-10-01 沭阳县益同木业有限公司 一种再生节能型建筑工程用模板

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2012032A1 (de) * 1970-03-13 1971-09-23 Massenberg, Gert, 4300 Essen Schalungstafel
DE20013321U1 (de) * 2000-07-31 2000-11-30 Fanelsa, Kurt, 76571 Gaggenau Schaltafel
DE19961062A1 (de) * 1999-12-17 2001-06-28 Betoratio Gmbh Schalungssystem
EP1362966A1 (fr) * 2002-05-15 2003-11-19 Hussor S.A. Panneau composite pultrudé
EP1728942A1 (fr) * 2004-03-26 2006-12-06 Kanaflex Corporation Chassis de moulage en resine thermoplastique
DE202007000742U1 (de) * 2007-01-12 2008-05-15 Quitka Schalungstechnik Gmbh & Co. Kg Schaltafel und Schalung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2012032A1 (de) * 1970-03-13 1971-09-23 Massenberg, Gert, 4300 Essen Schalungstafel
DE19961062A1 (de) * 1999-12-17 2001-06-28 Betoratio Gmbh Schalungssystem
DE20013321U1 (de) * 2000-07-31 2000-11-30 Fanelsa, Kurt, 76571 Gaggenau Schaltafel
EP1362966A1 (fr) * 2002-05-15 2003-11-19 Hussor S.A. Panneau composite pultrudé
EP1728942A1 (fr) * 2004-03-26 2006-12-06 Kanaflex Corporation Chassis de moulage en resine thermoplastique
DE202007000742U1 (de) * 2007-01-12 2008-05-15 Quitka Schalungstechnik Gmbh & Co. Kg Schaltafel und Schalung

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013107303A1 (de) * 2013-07-10 2015-01-15 Polytech Gmbh Schaltafel für Betonierungsschalungen
US10890001B2 (en) 2013-07-10 2021-01-12 Polytech Gmbh Formwork panel for concrete-work shutterings
DE102013107303B4 (de) 2013-07-10 2024-06-06 Polytech Gmbh Schaltafel für Betonierungsschalungen
DE102015110129A1 (de) * 2015-06-24 2016-12-29 Guido Schulte Sichtbeton-Schalung
WO2019012477A1 (fr) * 2017-07-14 2019-01-17 Sabic Global Technologies B.V. Objet profilé de forme allongée renforcé par des fibres
CN110892124A (zh) * 2017-07-14 2020-03-17 沙特基础工业全球技术有限公司 纤维增强的细长压型物体
US20200139652A1 (en) * 2017-07-14 2020-05-07 Sabic Global Techologies B.V. Fiber reinforced elongate profiled object
DE102018106221A1 (de) * 2018-03-16 2019-09-19 Polytech Gmbh Schalhaut aus Kunststoff für eine Rahmenschalungs-Schaltafel für das Betonieren
CN113463907A (zh) * 2021-07-30 2021-10-01 沭阳县益同木业有限公司 一种再生节能型建筑工程用模板
CN113463907B (zh) * 2021-07-30 2022-02-15 沭阳县益同木业有限公司 一种再生节能型建筑工程用模板

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