EP2526243B1 - Élément de coffrage comprenant une poutrelle - Google Patents

Élément de coffrage comprenant une poutrelle Download PDF

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Publication number
EP2526243B1
EP2526243B1 EP11701071.0A EP11701071A EP2526243B1 EP 2526243 B1 EP2526243 B1 EP 2526243B1 EP 11701071 A EP11701071 A EP 11701071A EP 2526243 B1 EP2526243 B1 EP 2526243B1
Authority
EP
European Patent Office
Prior art keywords
formwork
panel according
support
formwork panel
carrier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP11701071.0A
Other languages
German (de)
English (en)
Other versions
EP2526243A1 (fr
Inventor
Walter Holawe
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.)
Doka GmbH
Original Assignee
Doka 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 Doka GmbH filed Critical Doka GmbH
Publication of EP2526243A1 publication Critical patent/EP2526243A1/fr
Application granted granted Critical
Publication of EP2526243B1 publication Critical patent/EP2526243B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
    • E04G11/48—Supporting structures for shutterings or frames for floors or roofs
    • E04G11/50—Girders, beams, or the like as supporting members for forms

Definitions

  • the following invention relates to a formwork element with at least one carrier.
  • carriers can be used for laying shuttering panels. Furthermore, they may be suitably provided with a surface suitable as a formwork, so that they act as narrow, strip-like formwork elements. Finally, one or more carriers in a formwork element, such. B. a shuttering panel be integrated and be provided here at the edges and / or between the edges as a cross member.
  • the invention has for its object to provide an improved in terms of handling formwork element.
  • this has at least one carrier.
  • This preferably consists at least partially of metal, in particular steel, but may be any other suitable material, such as. As wood, aluminum or fiber reinforced plastic.
  • a particular challenge is to be able to continue to manipulate the carrier or a plurality of such carriers, which may be integrated into a formwork element.
  • the carrier should save as much weight as possible while at the same time meeting the requirements imposed on the strength. This is achieved according to the invention by the measures described below.
  • the carrier is arched at least slightly in the direction of the concrete to be filled. This essentially means a certain "preload” in the direction of the load, which results in that the load can be absorbed particularly well. This is possible in particular without the risk of bending against the direction of curvature, which would lead to undesired bulges or bulges at the bottom in the finished concrete floor.
  • the curvature described may be formed as a uniform curvature and may be on the order of a few millimeters, depending on the length of the carrier, for example, about 4 millimeters.
  • the carrier may have openings whose size and / or shape and / or orientation and / or distribution changed over the length of the carrier so that the carrier is weakened less in a central region than in at least one end region.
  • a support is usually mounted at its ends, and in its course a uniform line load is applied. This results in a load in middle areas, which is greater than in end areas.
  • the carrier is provided with openings which are either increasingly smaller and / or less in the central region.
  • the openings over the entire carrier can have a substantially constant shape, for example circular, but become smaller towards the middle.
  • the shape and / or orientation of the openings in the direction of the center changed in such a way that a smaller weakening occurs here.
  • such an embodiment optionally in combination with one or more of the features described above or below, as well as the use of at least one opening in a carrier for hanging at least one strap for receiving a further, preferably a timber formwork support as subject of the present application to watch.
  • a clip which can be suspended in at least one opening of a carrier.
  • This can be largely U-shaped with a bottom whose "width" (viewed from above) corresponds approximately to the width of a carrier (also viewed from above, measured perpendicular to the longitudinal extent of the carrier).
  • two legs may be attached to different sides, so that they extend in use largely vertically to different sides of the formwork support.
  • brackets By mutually directed, but offset by the length of the bottom projections or hooks of the bracket can for example in two adjacent openings of a formwork support hung and used for placing one or more wooden formwork beams. It has heretofore been known to provide laterally strip-like projections over substantially the entire length of the carrier in the case of formwork carriers, which have an elevation at their end, so that the described brackets can be suspended.
  • the measure described above, to use openings in the support for hanging ironing, on the other hand offers the advantage that there is a much lower risk of contamination than in the described strip-shaped projections.
  • a support of the formwork panel according to the invention is provided at least at one end with at least two supports directed in the same (usually vertical) direction, arranged at different vertical heights such that the support is at least two different horizontal levels can be placed on other elements of a slab formwork system.
  • the formwork support is arranged substantially horizontally in use, but it is also conceivable that the use position of the formwork support is vertical, and thus that different positions are possible in the lateral direction.
  • at least two supports ensure that the formwork panel according to the invention is particularly versatile.
  • a support of the formwork panel is nailable, for example by a suitable wood insert
  • the supports directed in the same direction have the advantage that this nailability applies to the use on the two (or more) horizontal levels.
  • the "height" of the carrier decreases towards the end, which is associated with the above-described change in shape of the wearer along its length, and also provides for a simple procedure when hanging up.
  • At least one support is sleeve-shaped.
  • Such a form forms a substantially vertically extending cavity into which a substantially vertical projection or pin of a counter-bearing, for example, to a support, can be inserted.
  • the cavity described is limited to at least three, preferably four sides in the horizontal direction and / or provided with a rounded contour, so that a particularly good interaction with round pins, such as a column head, is possible.
  • a formwork panel according to the invention it is further preferred for a formwork panel according to the invention to have at least two existing carriers, in particular between edge carriers transversely extending carriers, less space in a middle region of the panel than in end regions , As a result, the particularly loaded middle region can be reinforced in some way, while weight is saved in the end regions.
  • an embodiment of a formwork panel has proven to be particularly favorable, in which any edge support are not curved, and this measure is used only for the particularly stressful cross member between the edge beams.
  • Fig. 1 is shown exaggerated in a side view and in terms of the curvature of a carrier 10, which is integrated in the example shown in a formwork element, of which, however, only edge profiles 12 are shown.
  • a formwork panel In the final state is above the profiles 12 and the support 10, a formwork panel, is poured onto the concrete.
  • the resulting line load loads the carrier in particular at its central region comparatively extensive, since it is supported at its edges on suitable supports.
  • the carrier according to the invention in the in Fig. 1 shown embodiment curved in the direction of the expected load.
  • This vault is in Fig. 1
  • a few millimeters At the in Fig.
  • the carrier shown may in particular be one of possibly a plurality of such cross members, which are arched at least partially in the manner described, while this may not necessarily be provided for the edge supports or profiles 12 got to.
  • openings 14 are shown which are unevenly distributed over the length of the carrier.
  • openings 14 are according to an alternative inventive measure, but with the in Fig. 1 can be combined over the course of the carrier 20 in terms of their size changed.
  • the openings towards the center are smaller and are completely omitted in the illustrated embodiment in the central region, so that this particularly stressed area is much less weakened than the end regions.
  • the strength can be ensured over the entire course of the carrier, weight being saved especially in the less loaded end regions.
  • FIG. 3 shown third embodiment of a carrier 30 which is additionally designed in the end regions A (according to the position of use) less "high" than in a central region. At the ends of support 32 can be seen.
  • Over the course of the carrier 30 is further provided with openings whose shape, orientation and distribution varies over the length of the carrier.
  • openings are provided in the end regions in the form of a respective comparatively flat triangle whose corners are rounded with different radii.
  • two sides of the triangle are substantially parallel to edges of the beam, namely to the top edge and the bottom edge inclined in this area. The radius of curvature is greatest towards the end of the beam and smallest at the top, toward the inside of the beam.
  • oval or elliptical and rectangular openings may be provided with rounded portions at their ends and, for example, be aligned substantially parallel to the inclined in this area lower edge of the carrier.
  • Elliptical or oval openings and / or openings in any of the shapes described above may be substantially vertically aligned with the center of the carrier as shown, and may be substantially horizontally aligned further toward the center. In the middle of the carrier are also found circular openings. Overall, it could be found for the example shown a special distribution, shape and orientation change of the openings that weight can be saved and at the same time the strength is ensured over the entire course of the wearer.

Landscapes

  • 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)

Claims (9)

  1. Panneau de coffrage avec au moins une poutrelle (10, 20, 30) préférentiellement en acier,
    laquelle est au moins légèrement cintrée vers le béton à introduire, et
    (1) est quant à ses dimensions configurée sur sa longueur de telle manière que la poutrelle (10, 20, 30) soit moins amincie dans une zone centrale que dans des zones d'extrémité (A), et/ou
    (2) présente des ouvertures (14) dont la grandeur et/ou la forme et/ou l'alignement et/ou la distribution sur la longueur de la poutrelle (10, 20, 30) sont variées de telle manière que la poutrelle (10, 20, 30) soit moins fragilisée dans une zone centrale que dans des zones d'extrémité (A).
  2. Panneau de coffrage selon la revendication 1, caractérisé en ce qu'au moins une armature en étrier peut être accrochée dans au moins une ouverture (14) pour la pose d'une autre poutrelle de coffrage, préférentiellement en bois.
  3. Panneau de coffrage selon l'une des revendications précédentes, caractérisé en ce que la poutrelle est disposée pratiquement horizontalement en cours d'usage et est pourvue à au moins une extrémité de deux semelles (32) orientées dans la même direction, lesquelles sont disposées à des hauteurs différentes de manière à pouvoir appliquer la poutrelle (30) sur d'autres éléments d'un système de coffrage de dalle sur au moins deux niveaux horizontaux différents.
  4. Panneau de coffrage selon la revendication 3, caractérisé en ce que la semelle la plus haute est plus proche de l'extrémité de la poutrelle de coffrage de dalle (30) que la semelle la plus basse.
  5. Panneau de coffrage selon la revendication 3 ou 4, caractérisé en ce qu'au moins une semelle (32) est réalisée au moins partiellement en métal et/ou en matière synthétique renforcée par des fibres.
  6. Panneau de coffrage selon une des revendications 3 à 5, caractérisé en ce qu'au moins une semelle (32) est réalisée en forme de manchon.
  7. Panneau de coffrage selon au moins une des revendications 3 à 6, caractérisé en ce qu'au moins une semelle est située sous une autre semelle (32) de manière à pourvoir être déployée et rabattue par pivotement.
  8. Panneau de coffrage selon l'une des revendications précédentes, avec plusieurs poutrelles (10, 20, 30), dont au moins deux sont moins espacées dans une zone centrale du panneau de coffrage que dans des zones d'extrémité.
  9. Panneau de coffrage selon l'une des revendications précédentes, avec des poutrelles de bord et des poutrelles transversales entre les poutrelles de bord, caractérisé en ce que seules une ou plusieurs poutrelles transversales sont cintrées.
EP11701071.0A 2010-01-20 2011-01-19 Élément de coffrage comprenant une poutrelle Active EP2526243B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010001041 DE102010001041A1 (de) 2010-01-20 2010-01-20 Deckenschalungsträger und Schalungselement mit einem Träger
PCT/EP2011/050664 WO2011089149A1 (fr) 2010-01-20 2011-01-19 Poutrelle de coffrage de dalles et élément de coffrage comprenant une poutrelle

Publications (2)

Publication Number Publication Date
EP2526243A1 EP2526243A1 (fr) 2012-11-28
EP2526243B1 true EP2526243B1 (fr) 2014-12-24

Family

ID=43761952

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11701071.0A Active EP2526243B1 (fr) 2010-01-20 2011-01-19 Élément de coffrage comprenant une poutrelle

Country Status (4)

Country Link
EP (1) EP2526243B1 (fr)
DE (1) DE102010001041A1 (fr)
ES (1) ES2532390T3 (fr)
WO (1) WO2011089149A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012206353A1 (de) 2012-04-18 2013-10-24 Doka Industrie Gmbh Hebevorrichtung für Deckenschalungselemente sowie Verfahren

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2386161A (en) * 1943-05-24 1945-10-02 Bryant & Son Ltd C Temporary support for use in casting concrete floors and similar purposes
US2727281A (en) * 1951-08-07 1955-12-20 Cruciani Eusebio Centering for construction of arches
DE1818217U (de) * 1960-06-07 1960-09-15 Wuppermann Gmbh Theodor Kelch- oder aehnliches profil, insbesondere fuer schalungstraeger.
US4569501A (en) * 1984-05-29 1986-02-11 Economy Forms Corporation Cambered truss header for a shoring structure
ES2196951B1 (es) * 2001-04-18 2004-10-16 Ingenieria De Encofrados Y Servicios, S.L. Encofrado recuperable.
ITPN20050085A1 (it) * 2005-11-28 2007-05-29 Ezio Sedran Trave in plastica per la realizzazione di armamenti di strutture edili orizzontali.
DE102007026499B3 (de) * 2007-06-05 2009-02-05 Peri Gmbh Trägerelement für eine Betonschalung mit Vorrichtung zur automatischen Kompensation von Biegeverformungen

Also Published As

Publication number Publication date
DE102010001041A1 (de) 2011-07-21
EP2526243A1 (fr) 2012-11-28
ES2532390T3 (es) 2015-03-26
WO2011089149A1 (fr) 2011-07-28

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