EP2119845A1 - Verlorenes Schalungselement zur Herstellung eines Balkens mit auskragendem Längsrand; Balken und Verfahren mit Anwendung dieses Schalungselements - Google Patents

Verlorenes Schalungselement zur Herstellung eines Balkens mit auskragendem Längsrand; Balken und Verfahren mit Anwendung dieses Schalungselements Download PDF

Info

Publication number
EP2119845A1
EP2119845A1 EP09290358A EP09290358A EP2119845A1 EP 2119845 A1 EP2119845 A1 EP 2119845A1 EP 09290358 A EP09290358 A EP 09290358A EP 09290358 A EP09290358 A EP 09290358A EP 2119845 A1 EP2119845 A1 EP 2119845A1
Authority
EP
European Patent Office
Prior art keywords
plate
spoiler
formwork
edge
folded
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Withdrawn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
EP09290358A
Other languages
English (en)
French (fr)
Inventor
Thierry Peney
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
Original Assignee
KP1 SAS
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 KP1 SAS filed Critical KP1 SAS
Publication of EP2119845A1 publication Critical patent/EP2119845A1/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/20—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members

Definitions

  • the present invention relates to building and construction and, more particularly, prefabricated beams for the building.
  • a spoiler is a concrete protrusion which forms a projection of the upper face along one of its longitudinal edges and which has an outer face in continuity with the lateral face of the beam which ends at said longitudinal edge.
  • This spoiler is intended either to form a formwork for a compression slab cast on site on a pre-slab or on a slab alveolate, or to provide a level enhancement for elements of different thicknesses (pre-slabs, hollow slabs, ).
  • the qualities required for a spoiler are, whatever its destination, the greatest possible dimensional accuracy and well-controlled surface qualities.
  • this spoiler is strong enough to form a formwork able to contain the pressure of the compression slab during casting, not to crumble or be destroyed during transport (including the lashing straps on transport vehicles) and its handling and to offer a good recovery concreting that is to say have a rough surface for hanging concrete poured in situ.
  • the invention therefore relates to a lost formwork element for the manufacture of a prefabricated beam spoiler made of reinforced concrete, characterized in that it comprises a plate, each of whose faces has reliefs and whose edge lower is folded square to the side of the formwork side of the plate and is provided with a plurality of orifices.
  • a spoiler beam has a succession of stirrups which belong to the passive reinforcement of the beam, each stirrup generally being formed by a vertical plane shaped loop. Rectangular pin with on one of its sides, a free strand going up to "sew" the spoiler to the body of the beam.
  • the formwork element according to the invention cooperates with at least two of these ascending strands which are housed in the orifices provided in the aforementioned angle return. This cooperation allows, with the vertical strand adjacent the loop of the stirrup, to wedge and maintain the plate in an upright position acceptable for casting the spoiler.
  • the upper edge of the plate is folded back on itself beyond a right angle, to constitute a stiffener of the plate and a regular leveling edge and an anchoring flange of this formwork in the spoiler.
  • a second object of the invention is a spoiler beam made by means of the previous formwork, characterized in that the plate angle return is located in the body of the beam so that a same plate can participate in the manufacture of beam. spoiler whose spoiler dimensions are different.
  • a third and final object of the invention is a method of producing a spoiler beam which consists, once the beam body is cast, to set up a succession of shuttering plates along one side of the beam by dipping the angled edge of each plate into the fresh concrete of the beam of a height adapted to the height of the spoiler of the beam corresponding to the width of the raised portion of the plate, possibly increased by the width of a riser formed by a plate of the same structure as the formwork plate of the invention, having taken care to pass at least two free strands of reinforcement stirrups in the perforations of the angled flanges and those, where appropriate of the lower flange of the enhancement. The free ends of the other stirrups pass outside the edge at right angles.
  • the formwork plates are held vertical by the vertical amount of each rectangular loop that is close to its free strand.
  • the lost formwork 1 shown is derived from a sheet 2, for example a steel sheet coated with a galvanized protection.
  • a sheet 2 for example a steel sheet coated with a galvanized protection.
  • Each of the faces 2a and 2b of this sheet is textured. It therefore has R reliefs that give each face roughness significantly improving the attachment of concrete that will come to their contact.
  • This texturing is obtained mechanically by passing the sheet, where the central part thereof between two forming rollers, in the manner of a knurling.
  • This metal strip (whose width is of the order of 10 to 40 cm) has a lateral edge, lower in the figure, folded into a square back 3 on the side of the face 2a of the formwork which will be in contact with the concrete spoiler, as will be illustrated later.
  • This return is pierced with successive orifices 4 whose diameter is at less equal to the wire diameter of the passive reinforcement brackets of the beam as also illustrated later.
  • the spacing pitch of these orifices is of the order of 50 mm, the length of the plate being of the order of 2 m to allow easy manual handling.
  • each stirrup 15 is in the form of a loop, here rectangular, with a vertical free run 16 which extends along the side of the mold the highest, so as to ensure the reinforcement of the spoiler is its connection with the beam.
  • the concrete of the body 17 of the beam was cast and leveled to the upper level of the lower mold flank 11.
  • the figure 3 illustrates the method of the invention for overcoming the beam of a lateral spoiler.
  • This method involves sliding a formwork 1 on the free ends 16 of the stirrups, with at least two strands such as 16a which are slid into the orifices 4 which lend themselves to it and the other strands 16b which pass outside the rim 3 by being deflected towards the inside of the spoiler.
  • the density of the strands 16 stirrups and holes 3 is such that there will always be two strands fac two holes. If necessary, we can slightly wander a bit to get it into a hole that is slightly off: it is will produce a slight elastic pinch of the formwork by the reinforcement favorable to maintain it in place in the mold at the time of casting spoiler.
  • the strands such as 16b also favor the correct retention of the formwork in the mold and tend to place it in abutment against the vertical upright 15a adjacent to the strand 16 of each stirrup 15.
  • the spoiler form is embedded in the fresh concrete of the beam on a height h which will be of the order of 6 - 7 cm to avoid cracking.
  • the successive forms along the flank 12 of the mold of the beam are slightly overlapped to seal the formwork.
  • This spoiler can have, as said in the introduction, either a formwork function of a compression slab cast on pre-slabs carried by the beam 20, a raising level to constitute steps in a floor or on the contrary to catch different thicknesses on the same level.
EP09290358A 2008-05-16 2009-05-14 Verlorenes Schalungselement zur Herstellung eines Balkens mit auskragendem Längsrand; Balken und Verfahren mit Anwendung dieses Schalungselements Withdrawn EP2119845A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0802649A FR2931179B1 (fr) 2008-05-16 2008-05-16 Element de coffrage perdu pour la fabrication d'une poutre a becquet. poutre et procede faisant application

Publications (1)

Publication Number Publication Date
EP2119845A1 true EP2119845A1 (de) 2009-11-18

Family

ID=40149545

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09290358A Withdrawn EP2119845A1 (de) 2008-05-16 2009-05-14 Verlorenes Schalungselement zur Herstellung eines Balkens mit auskragendem Längsrand; Balken und Verfahren mit Anwendung dieses Schalungselements

Country Status (2)

Country Link
EP (1) EP2119845A1 (de)
FR (1) FR2931179B1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0039661A2 (de) * 1980-05-01 1981-11-11 Heinz Witschi Verwendung von Streckmetall als verlorene Abschalung
DE20012891U1 (de) * 2000-07-26 2001-02-15 Hummel Heinz Randschalungselement
WO2005047624A1 (en) * 2003-11-14 2005-05-26 Bent John Habberstad Device for closing off an edge barrier when pouring concrete
WO2007068063A1 (en) * 2005-12-12 2007-06-21 Bluescope Steel Limited Formwork

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0039661A2 (de) * 1980-05-01 1981-11-11 Heinz Witschi Verwendung von Streckmetall als verlorene Abschalung
DE20012891U1 (de) * 2000-07-26 2001-02-15 Hummel Heinz Randschalungselement
WO2005047624A1 (en) * 2003-11-14 2005-05-26 Bent John Habberstad Device for closing off an edge barrier when pouring concrete
WO2007068063A1 (en) * 2005-12-12 2007-06-21 Bluescope Steel Limited Formwork

Also Published As

Publication number Publication date
FR2931179A1 (fr) 2009-11-20
FR2931179B1 (fr) 2010-06-04

Similar Documents

Publication Publication Date Title
EP0288385B1 (de) Vorgefertigtes Bauelement mit integrierter Wärmedämmung, insbesondere Deckenelement und Verfahren zu dessen Herstellung
EP2549028B1 (de) Verfahren zur Herstellung eines gestützten Bauwerks und Gesamtheit der Schalungen für seine Erstellung
FR2903437A1 (fr) Element prefabrique pour la realisation d'une paroi en beton arme et paroi ainsi realisee
FR2620153A1 (fr) Panneau de construction, notamment panneau de bardage, a isolation thermique integree
EP0011555A1 (de) Verfahren zur Herstellung vorgefertigter Betonträger
FR2692924A1 (fr) Structure porteuse telle qu'un plancher, comprenant des poutres et une dalle de béton et procédé pour son obtention.
EP2119845A1 (de) Verlorenes Schalungselement zur Herstellung eines Balkens mit auskragendem Längsrand; Balken und Verfahren mit Anwendung dieses Schalungselements
FR3006701A1 (fr) Procede et dispositif pour la fabrication de murs banches au moyen d'un coffrage reutilisable et comportant au moins un cadre ajoure
FR2973407A1 (fr) Plaque mince en beton fibre comportant des moyens de liaison avec une piece en beton, et element de construction comportant une telle plaque mince
FR3006700A1 (fr) Procede et dispositif pour la fabrication de murs banches au moyen d'un coffrage reutilisable et d'un ferraillage d'armement
FR2927645A1 (fr) Coffre-tunnel bi-matiere pour volet roulant
FR1465570A (fr) Panneau d'armature creux préfabriqué, à parois coffrantes minces, armées et entretoisées, pour la réalisation d'éléments de construction
FR2508956A1 (fr) Elements constructifs isothermes prefabriques en beton vibre, pour construction de murs, et procede de montage correspondant
FR2903336A1 (fr) Procede de fabrication d'une dalle nervuree prefabriquee et dalle nervuree obtenue
EP0360682B1 (de) Dehnungsfuge für Betonbodenbelag
FR3106147A1 (fr) Mur comportant des fibres végétales et un renfort en béton armé.
FR2913993A1 (fr) Entrevous en matrice minerale, dispositif de plancher a entrevous et son procede de realisation
FR2878877A1 (fr) Bloc de coffrage
FR2835272A1 (fr) Dispositif de mur isolant et procede pour sa fabrication
WO2011135235A1 (fr) Paroi moulee avec parement prefabrique
EP2444567B1 (de) Verschalungselement zum Bau eines Trägers
FR2812323A1 (fr) Piscine du type composee d'elements prefabriques en beton arme
FR2697857A1 (fr) Poutrelle légère en treillis à base préenrobée de béton, à raideur améliorée.
EP1248890B1 (de) Verfahren zum errichten eines gebäudes
EP1009891B1 (de) Hohlraumplatte aus beton mit sicherheitsausrüstung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20100519