EP2559821B1 - Füllkörper aus Material mit einer geringen Dichte - Google Patents

Füllkörper aus Material mit einer geringen Dichte Download PDF

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Publication number
EP2559821B1
EP2559821B1 EP12178971.3A EP12178971A EP2559821B1 EP 2559821 B1 EP2559821 B1 EP 2559821B1 EP 12178971 A EP12178971 A EP 12178971A EP 2559821 B1 EP2559821 B1 EP 2559821B1
Authority
EP
European Patent Office
Prior art keywords
interjoists
rigidifier
polystyrene
infill block
infill
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
EP12178971.3A
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English (en)
French (fr)
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EP2559821A1 (de
Inventor
Laurent Abric
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.)
KP1 SAS
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KP1 SAS
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Publication date
Application filed by KP1 SAS filed Critical KP1 SAS
Priority to PL12178971T priority Critical patent/PL2559821T3/pl
Publication of EP2559821A1 publication Critical patent/EP2559821A1/de
Application granted granted Critical
Publication of EP2559821B1 publication Critical patent/EP2559821B1/de
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Classifications

    • 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
    • E04B5/265—Monolithic filling members with one or more hollow cores
    • 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 invention relates to the field of building construction and more particularly to the construction of floors.
  • the construction of a floor consists of initially installing parallel beams regularly spaced from each other, such as inverted T-section beams. Interjoists are then installed on these beams: each interjoists rests by its two longitudinal edges on two beams.
  • slab compression When all the interjoists have been installed, they delimit together with the beams that carry them a surface intended to support a concrete slab, called slab compression.
  • the concrete is poured from the compression slab which then covers the interjoists and beams and any reinforcement steels.
  • Such interjoists which is known in particular from patent applications FR2829780 and FR2922916 , is made of polystyrene, so that it also participates in the thermal insulation offered by the floor that it constitutes with the compression slab.
  • such a interjoist comprises a polystyrene body delimited by two longitudinal edges intended to rest on two beams, by two transverse edges, and by an upper face and a lower face.
  • Each longitudinal edge has a side face from which a spout which extends to protrude transversely from the rest of the interjoists body.
  • the free space located above the spout defines the geometry of the keyway, which provides a connecting function between the compression slab and the beam.
  • the applicable standards require that this keying has a minimum height of 4 cm in the case of prestressed beams.
  • interjoists must not give way under the weight of an operator moving on the assembly formed by the beams and interjoists, during the phases prior to the casting of the compression slab.
  • the applicable standards require that a interjoists in place be able to support a weight of 150 kilograms without yielding.
  • the object of the invention is to provide a solution for reducing the thickness of the spoiler of a interstice polystyrene type or the like, without penalizing its mechanical strength.
  • the subject of the invention is an interjoists comprising a body of low density material such as polystyrene and having two longitudinal edges each having a transversely protruding spout, said interjoists being intended to be installed on two beams of the inverted T-section type or the like, having a spout in abutment on each beam.
  • the interjoists comprises at least one stiffener made of material having a higher resistance than the material of the interjoists body, this stiffener being arranged to increase the cohesion of a spout with the rest of the interjoists body.
  • the stiffener is in the form of a Z-section angle defining an upper portion, a middle portion and a lower portion, the upper portion covering a lower face of the nozzle, and is molded with the polystyrene of the body interjoists, such way that the lower portion of the stiffener is taken in the thickness of the polystyrene forming the body of interjoists
  • the invention also relates to a interjoiset thus defined, wherein the stiffener has in its lower portion holes or openings through which its anchoring in the polystyrene forming the interjoists body is improved.
  • each stiffener is made of a material such as plastic that can be cut with a hand saw tool.
  • the invention also relates to a interjoiset thus defined, wherein the stiffener comprises ribs extending transversely, to strengthen the connection of the middle portion with the upper portion.
  • the interjoists according to the invention which is identified by 1 in the figure 1 , comprises a polystyrene body 2 extending in a longitudinal direction DL. This body is delimited by an upper face 3, a lower face 4, a first longitudinal edge 6, a second longitudinal edge 7, a first transverse edge 8 and a second transverse edge 9.
  • the faces 3 and 4 are respectively the upper and lower faces of the interjoists when it is in place on two beams, that is to say when it is oriented as in the figure 1 .
  • the lower portion of this interjoists which is indicated by 11, has the general shape of a relatively thick parallelepipedal planar wall, which protrudes transversely well beyond the longitudinal edge 6.
  • the longitudinal edge 6 has a generally vertical lateral face 12, of which transversely protrudes a spout 13 constituting a flange which extends over the entire length of the interjoists body 1.
  • This spout 13 has a lower face 14 which extends the upper part of the lateral face 12, the lower portion of this side face 12 joining the lower portion 11 of the interjoists which exceeds beyond the longitudinal edge 12.
  • the longitudinal edge 7 also has a substantially vertical lateral face 16, of which transversely extends a spout 17 which is situated at the level of the upper part of the vertical wall 16, this spout 17 having a lower face 18 which extends the upper part of the vertical wall 16.
  • the underside 14 of the spout 13 bears on the edge of the heel of an inverted T-section beam
  • the lower face 18 of the spout 17 bears on the heel of a spider. other inverted T-section beam.
  • the interjoists comprise a polystyrene body provided with stiffeners which reinforce the cohesion of each spout with the rest of the polystyrene body.
  • the interjoists according to the invention comprises a first stiffener 19 reinforcing the mechanical strength of the spout 13, and a second stiffener 21 reinforcing the mechanical strength of the second spout 17.
  • stiffeners 19 and 21 here extend in the mass of the polystyrene interjoists body: their integration is ensured by putting them in place in the mold for manufacturing the polystyrene body, before injection and constitution of the expanded polystyrene in this mold. .
  • the body of interjoists is molded around the stiffeners.
  • the stiffener 21 is in the form of an angle having in cross section a shape corresponding to that of the letter Z. It comprises a medial portion 22, in the form of a generally flat rectangular wall, extended in the upper part by a portion upper 23 also in form of a rectangular wall, and extended in its lower part by a lower portion 24 in form also a generally rectangular wall.
  • this stiffener or stiffener 21 also comprises a plurality of ribs 26 each extending in a plane oriented transversely to the longitudinal direction DL, and each joining the middle portion 22 with the upper portion 23 to increase the mechanical strength of the connection between these two portions.
  • These ribs 26 are distributed along the stiffener 21 so as to be evenly distributed along the longitudinal direction DL, that is to say along the edge 25 corresponding to the junction of the middle portion 22 with the portion superior 23.
  • the ribs 26 protrude from the outer faces of the portion 22 and the portion 23, that is to say they exceed the convex shape that jointly delimit these two generally planar portions.
  • each rib 26 may extend to the lower portion 24, so as to also stiffen the mechanical connection joining the middle portion 22 and the lower portion 24.
  • Other forms of ribs are possible to stiffen the connection of the middle portion 22 at the upper portion 23 and the lower portion 24.
  • the lower portion 24 advantageously comprises different holes 27 uniformly distributed over its entire length, which significantly improve the setting of the stiffener in the mass of polystyrene constituting the interjoists body.
  • the fact that the lower portions are firmly anchored in the mass of the polystyrene forming the interjoin body 1 significantly improves the holding mechanics of this interjoists.
  • holes may also be provided in particular at the middle portion 22, in order to further increase the mechanical quality of the anchoring of the stiffener in the polystyrene mass of the interjoists body, in order to increase still significantly the mechanical strength of the whole.
  • stiffeners 19 and 21 have substantially the same shapes, and they are arranged symmetrically in the interjoists body, so as to stiffen the spouts 13 and 17 which have opposite orientations relative to the longitudinal direction DL.
  • stiffeners 19 and 21 make it possible to significantly increase the mechanical strength of the interjoists by stiffening the junction of each spout 19, 21 with the remainder of the polystyrene interjoists body.
  • the stiffener 19 makes it possible to reinforce the edge corresponding to the junction of the lateral face 12 with the lower face of the nose 14, which makes it possible to avoid the appearance in this region of a rupture primer when the interjoists is solicited by the application of a large load.
  • the interjoists 21 is arranged to reinforce the edge corresponding to the junction of the lateral face 16 with the lower face 18 of the spout 17 in order to avoid the appearance of a rupture primer in this zone.
  • the stiffener 21 is positioned in the mass of the interjoists body so that its lower portion 24 is completely embedded in the thickness of the interjoists body, and that its middle portion is also embedded in this polystyrene while skirting the side face 12.
  • the stiffener 21 is implanted in a similar manner in the interjoists body.
  • stiffeners 19 and 21 are also advantageously made of a material of course with a higher mechanical strength than polystyrene, but can still be cut with a tool usually available on site, such as a handsaw.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Body Structure For Vehicles (AREA)

Claims (4)

  1. Einschub (1), umfassend einen Körper aus einem Material mit geringer Dichte, wie z. B. Polystyrol, und mit zwei Längskanten (6, 7), die jeweils einen Schnabel (13, 17) haben, der in Querrichtung übersteht, wobei dieser Einschub (1) dazu bestimmt ist, auf zwei Trägern vom Typ mit umgekehrten T-Profil oder dergleichen angebracht zu werden, indem ein Schnabel (13, 17) auf jedem Träger aufliegt, dadurch gekennzeichnet, dass er mindestens eine Versteifung (19, 21) aus einem Material umfasst, das einen höheren Widerstand als das Material des Einschubkörpers hat, wobei diese Versteifung (19, 21) so ausgebildet ist, dass es die Kohäsion eines Schnabels (13, 17) mit dem Rest des Einschubkörpers (1) erhöht, wobei die Versteifung (19, 21) die Form eines Winkeleisens mit Z-Profil hat, das einen oberen Abschnitt (23), einen mittleren Abschnitt (22) und einen unteren Abschnitt (24) begrenzt, wobei der obere Abschnitt (23) eine Unterseite (14, 18) des Schnabels (13, 17) bedeckt, wobei die Versteifung (19, 21) mit dem Polystyrol des Einschubkörpers (1) derart vergossen ist, dass der untere Abschnitt (24) der Versteifung (19, 21) in der Dicke des den Einschubkörper (1) bildenden Polystyrols aufgenommen ist.
  2. Einschub nach Anspruch 1, bei dem die Versteifung (19, 21) in ihrem unteren Abschnitt (24) Löcher oder Öffnungen umfasst, durch die ihre Verankerung in dem den Einschubkörper (1) bildenden Polystyrol verbessert wird.
  3. Einschub nach einem der Ansprüche 1 bis 2, bei dem die Versteifung (19, 21) aus einem Material, wie z. B. Kunststoff, hergestellt ist, das mit einem Werkzeug nach Art eines Fuchsschwanzes geschnitten werden kann.
  4. Einschub nach einem der Ansprüche 1 bis 3, bei dem die Versteifung (19, 21) sich quer erstreckende Rippen (26) umfasst, um die Verbindung des mittleren Abschnittes (22) mit dem oberen Abschnitt (23) zu verstärken.
EP12178971.3A 2011-08-03 2012-08-02 Füllkörper aus Material mit einer geringen Dichte Active EP2559821B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12178971T PL2559821T3 (pl) 2011-08-03 2012-08-02 Wypełnienie stropu z materiału o małej gęstości

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1157133A FR2978778B1 (fr) 2011-08-03 2011-08-03 Entrevous en materiau a faible densite

Publications (2)

Publication Number Publication Date
EP2559821A1 EP2559821A1 (de) 2013-02-20
EP2559821B1 true EP2559821B1 (de) 2019-03-27

Family

ID=46581854

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12178971.3A Active EP2559821B1 (de) 2011-08-03 2012-08-02 Füllkörper aus Material mit einer geringen Dichte

Country Status (5)

Country Link
EP (1) EP2559821B1 (de)
ES (1) ES2731442T3 (de)
FR (1) FR2978778B1 (de)
PL (1) PL2559821T3 (de)
PT (1) PT2559821T (de)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
UA27743U (en) * 2007-07-12 2007-11-12 Yefimov Yurii Petrovych Casing of floors and floorings
UA29025U (en) * 2007-10-30 2007-12-25 Pohrebniak Oleksandr Anatoliio Casing

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2662730B1 (fr) * 1990-05-29 1992-09-25 Eurostyrene Sarl Procede de fabrication de hourdis autocoffrants et isolants, dispositif pour la mise en óoeuvre de ce procede et hourdis ainsi obtenus.
IT1319246B1 (it) * 2000-10-27 2003-09-26 Plastedil Sa Elemento costruttivo composito, in particolare per la realizzazione distrutture di rivestimento o strutture di parete di edifici.
FR2829780B1 (fr) * 2001-09-18 2004-11-05 B D I Sas Entrevous isolant a hautes performances pour la construction de planchers
FR2871489B1 (fr) * 2004-06-15 2008-04-04 Knauf Snc Snc Entrevous en matiere plastique alveolaire comprenant des elements de renforts
FR2922916B1 (fr) * 2007-10-30 2017-01-13 Placoplatre Sa Element modulaire prefabrique de plancher sec, procede de fabrication d'un tel element modulaire et plancher sec constitue d'une pluralite d'elements modulaires.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
UA27743U (en) * 2007-07-12 2007-11-12 Yefimov Yurii Petrovych Casing of floors and floorings
UA29025U (en) * 2007-10-30 2007-12-25 Pohrebniak Oleksandr Anatoliio Casing

Also Published As

Publication number Publication date
FR2978778B1 (fr) 2014-05-09
FR2978778A1 (fr) 2013-02-08
PT2559821T (pt) 2019-06-04
ES2731442T3 (es) 2019-11-15
EP2559821A1 (de) 2013-02-20
PL2559821T3 (pl) 2019-09-30

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