EP2500481B1 - Verschalungsblindboden aus Plastikmaterial mit Wabenstruktur für Decken - Google Patents

Verschalungsblindboden aus Plastikmaterial mit Wabenstruktur für Decken Download PDF

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Publication number
EP2500481B1
EP2500481B1 EP20120159992 EP12159992A EP2500481B1 EP 2500481 B1 EP2500481 B1 EP 2500481B1 EP 20120159992 EP20120159992 EP 20120159992 EP 12159992 A EP12159992 A EP 12159992A EP 2500481 B1 EP2500481 B1 EP 2500481B1
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European Patent Office
Prior art keywords
face
structural floor
interjoists
lateral
slot
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EP20120159992
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English (en)
French (fr)
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EP2500481A1 (de
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Placoplatre SA
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Placoplatre SA
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/17—Floor structures partly formed in situ
    • E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
    • E04B5/26—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated with filling members between the beams
    • E04B5/261—Monolithic filling members
    • E04B5/263—Monolithic filling members with a flat lower surface
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/17—Floor structures partly formed in situ
    • E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
    • E04B5/26—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated with filling members between the beams
    • E04B5/266—Filling members covering the undersurface of the beams

Definitions

  • the interjoists described in the document FR-A-2871489 have at their opposite lateral ends respectively two opposite props of vertical support on the joists.
  • the spikes extend over the entire length of the interjoists, which is of identical section over its entire length.
  • the rabbet thus defines a horizontal face of vertical support on a joist, which horizontal face belongs to the support spoiler, and a vertical face of horizontal support on the same joist, which vertical face is located immediately below the support spoiler .
  • a disadvantage of these interjoists is that, being made in a relatively fragile material, they are relatively fragile and can break during the casting of the concrete screed if they are not sufficiently sized.
  • Another solution could be to increase the density of the interjoists material, but this would also increase its cost.
  • the slot may advantageously start from the stop joining said horizontal bearing face and the tongue, that is to say from the lower end of the horizontal bearing face.
  • the invention relates to a method according to claim 8 for manufacturing a interjoists as described above.
  • Another aspect of the invention relates to a method of constructing a floor according to claim 10 comprising a step of placing interjoists on supporting joists to form a waterproof form, and a step of casting a screed of concrete on the formwork thus formed.
  • slot means an opening cavity delimiting a long, narrow mouth.
  • the slot preferably has a mouth with straight and parallel edges. In all cases, the length of the mouth of the slot is much greater than its width, at least ten times greater.
  • the interjoists 1 is of cellular plastic material, that is to say that its body is made of cellular plastic material, which does not exclude the presence of other materials reported on or present in the interjoists 1.
  • the upper face 10A has a trapezoidal cross-section, more generally an upward convex cross-section.
  • the upper face 10A nevertheless has a geometry of any suitable type.
  • Tab 24 provides insulation under the joist 4.
  • the slots 30 have a width of 1mm.
  • the width of the slot is the distance between the longitudinal edges of the slot.
  • the width of the slot 30 is for example, but not necessarily constant over its entire depth and / or length. Width means the maximum width of the slot.
  • the or each slot 30 has, for example, but not necessarily a portion of straight cross section, for example horizontal and / or for example proximal.
  • the local inclination at any point of the slot is between 0 ° and 60 °.
  • This is generally a slot having a curved portion with a total inclination, for example at least one point, for example at any point, between 0 ° and 60 ° relative to the horizontal.
  • the cellular plastic material has a density of between 10 and 50 kg / m 3 .
  • the density was lower here in the lower half of the block.
  • the application of the force was 10daN / s and the rupture detection at 30%.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Floor Finish (AREA)

Claims (11)

  1. Verschalungsblindboden (1) für Decken mit einem Körper aus Kunststoffmaterial mit Wabenstruktur, wobei der Blindboden (1) begrenzt ist durch eine obere Fläche (10A), eine untere Fläche (10B) und vier Flächen (10c, 10D, 10E, 10F), die die obere Fläche (10A) und die untere Fläche (10B) zusammenfügen, davon zwei einander gegenüberliegende Querflächen (10E, 10F) und zwei einander gegenüberliegende seitliche Flächen (10C, 10D),
    wobei mindestens eine der seitlichen Flächen (10C, 10D), einen seitlichen Stützvorsprung (12) vertikal des Blindbodensauf einem Trägerbalken (4) begrenzt, wobei der Blindboden (1) auf der oder jeder seitlichen Fläche (10C, 10D), die einen seitlichen Stützvorsprung (12) begrenzt, eine längliche keilförmige Einkerbung (20), beispielweise eine rechtwinklige Einkerbung, aufweist, die zwei aneinander angrenzende Flächen bildet:
    - eine vertikale Stützfläche (18) auf dem entsprechenden Trägerbalken (4), die den unteren Teil des jeweiligen seitlichen Stützvorsprungs (12) begrenzt; und
    - eine Fläche zum horizontalen Stützen (22) auf demselben Trägerbalken (4), unter dem seitlichen Stützvorsprung (12),
    dadurch gekennzeichnet, dass der Blindboden (1) auf der oder auf jeder seitlichen Fläche, die einen seitlichen Stützvorsprung begrenzt, mindestens einen länglichen inneren, offenen und nicht durchgehenden Spalt (30) aufweist, der sich jeweils auf Höhe des unteren Teils der Fläche zum horizontalen Stützen (22) oder unterhalb der Fläche zum horizontalen Stützen (22) von der seitlichen Fläche in Richtung des Inneren des Blindbodenkörpers (1) erstreckt.
  2. Blindboden (1) nach Anspruch 1, wobei der oder jeder Spalt (30) eine Geometrie und eine Position aufweist, die angepasst sind, dass eine Zunahme der vertikalen Last aufder oberen Fläche (10A) des Blindbodens (1), insbesondere auf dem mittleren Abschnitt der oberen Fläche (10A), eineBeabstandung der einander gegenüberliegenden horizontalen Stützflächen (22) verursacht, wenn der Blindboden (1) auf den Trägerbalken (4) gestützt ist.
  3. Blindboden (1) nach Anspruch 1 oder 2, wobei der oder jeder Spalt (30) einen Abschnitt aufweist, der zumindest eine lokale Neigung im Bereich zwischen 0° und 60° in Bezug auf die Horizontale aufweist, beispielsweise ein Spalt mit gewölbtem oder geradem Querschnitt.
  4. Blindboden (1) nach einem der vorhergehenden Ansprüche, wobei der oder jeder Spalt (30) auf eine Breite von weniger oder gleich 5 mm geöffnet ist.
  5. Blindboden (1) nach einem der vorhergehenden Ansprüche, wobei der oder jeder Spalt (30) auf eine maximale Tiefe von mindestens 20 mm, vorzugsweise auf eine Tiefe von mindestens 50 mm geöffnet ist.
  6. Blindboden (1) nach einem der vorhergehenden Ansprüche, wobei der Blindboden (1) eine Zunge (24) aufweist, die in Bezug auf den entsprechenden seitlichen Vorsprung (12) übersteht, und dazu bestimmt ist, unter dem Trägerbalken (4), auf den der seitliche Vorsprung (12) gestützt ist, aufgenommen zu werden.
  7. Blindboden (1) nach Anspruch 6, wobei die Mündung des oder jedes Spalts (30) sich auf der Höhe der Zunge (24) oder unterhalb der Zunge (24) oder vorzugsweise auf Höhe der Kante (32), die an der Verbindungsstelle der Zunge (24) und der vertikalen Fläche zum horizontalen Stützen (22) auf der Seite der Zunge (24) und/oder auf der der Zunge (24) gegenüberliegenden Seite gebildet ist, befindet.
  8. Verfahren zur Herstellung eines Verschalungsblindbodens (1) für Decken nach einem der vorhergehenden Ansprüche.
  9. Verfahren zur Herstellung einesBlindbodens (1) nach Anspruch 8, wobei der oder jeder Spalt (30) aus dem Körper des Blindbodens ausgeschnitten wird, beispielsweise mittels eines Drahts.
  10. Verfahren zurKonstruktion einer Decke, umfassend einen Schritt des Aufsetzens des Blindbodens (1) auf die Trägerbalken (4) zum Bilden einer dichten Verschalung, und umfassend einen Schritt des Vergießens einer Betonschicht auf die so gebildete Verschalung, wobei mindestens bestimmte Blindböden, beispielsweise alle Blindböden, gemäß dem Oberbegriff von Anspruch 1 ausgestaltet sind und dadurch gekennzeichnet sind, dass sie auf der oder jeder seitlichen Fläche, die einen seitlichen Stützvorsprung (12) begrenzt, mindestens einen inneren, offenen und nicht durchgehenden Spalt (30) aufweisen, der sich jeweils auf Höhe der Fläche zum horizontalen Stützen (22) oder unterhalb der horizontalen Stützfläche (22) von der seitlichen Fläche in Richtung des Inneren des Blindbodenkörpers (1) erstreckt.
  11. Verfahren nach Anspruch 10, wobei mindestens bestimmte Blindböden, beispielsweise alle Blindböden, nach einem der Ansprüche 1 bis 7 ausgestaltet sind.
EP20120159992 2011-03-18 2012-03-16 Verschalungsblindboden aus Plastikmaterial mit Wabenstruktur für Decken Active EP2500481B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1152259A FR2972744B1 (fr) 2011-03-18 2011-03-18 Entrevous de coffrage de planchers, en materiau plastique alveolaire

Publications (2)

Publication Number Publication Date
EP2500481A1 EP2500481A1 (de) 2012-09-19
EP2500481B1 true EP2500481B1 (de) 2014-06-25

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ID=45812737

Family Applications (1)

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EP20120159992 Active EP2500481B1 (de) 2011-03-18 2012-03-16 Verschalungsblindboden aus Plastikmaterial mit Wabenstruktur für Decken

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EP (1) EP2500481B1 (de)
FR (1) FR2972744B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2996569B1 (fr) * 2012-10-05 2015-03-06 Knauf Sas Entrevous avec reservations
FR3039572A1 (fr) * 2015-07-31 2017-02-03 Knauf Entrevous a fente longitudinale en forme de t

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2606323B1 (fr) * 1986-07-08 1989-04-21 Valeo Piece en matiere plastique alveolaire, notamment piece de construction telle qu'un entrevous, presentant une resistance amelioree a la flexion et au dechirement et procede d'obtention d'une telle piece
FR2614336B1 (fr) * 1987-04-23 1991-09-27 Rech Etudes Tech Element de construction prefabrique a isolation thermique integree, notamment element de plancher, et procede pour sa fabrication
FR2840933B1 (fr) * 2002-06-14 2005-06-10 Knauf Snc Entrevous en matiere plastique alveolaire renforce
FR2871489B1 (fr) * 2004-06-15 2008-04-04 Knauf Snc Snc Entrevous en matiere plastique alveolaire comprenant des elements de renforts

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FR2972744A1 (fr) 2012-09-21
EP2500481A1 (de) 2012-09-19
FR2972744B1 (fr) 2013-03-22

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