EP0987377B1 - Coffrage perdu pour planchers - Google Patents

Coffrage perdu pour planchers Download PDF

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Publication number
EP0987377B1
EP0987377B1 EP99118277A EP99118277A EP0987377B1 EP 0987377 B1 EP0987377 B1 EP 0987377B1 EP 99118277 A EP99118277 A EP 99118277A EP 99118277 A EP99118277 A EP 99118277A EP 0987377 B1 EP0987377 B1 EP 0987377B1
Authority
EP
European Patent Office
Prior art keywords
expendable
block
shaped seat
framework
stiffener
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.)
Expired - Lifetime
Application number
EP99118277A
Other languages
German (de)
English (en)
Other versions
EP0987377A2 (fr
EP0987377A3 (fr
Inventor
S.R.L. Bioisotherm
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.)
Bioisotherm Srl
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0987377A2 publication Critical patent/EP0987377A2/fr
Publication of EP0987377A3 publication Critical patent/EP0987377A3/fr
Application granted granted Critical
Publication of EP0987377B1 publication Critical patent/EP0987377B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
    • 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
    • E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
    • E04B5/026—Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of plastic
    • 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
    • E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
    • E04B5/04—Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement
    • E04B5/043—Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement having elongated 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

Definitions

  • the present invention relates to an expendable form for concrete floors as set forth in the preamble of claims 1 and 2.
  • US-A 4 157 640 discloses such forms in which the stiffener framework is embedded in the block exclusively in the areas of the V-shaped seats such that the upper portion of each stiffener element constituting the framework working in compression incorporated in a concrete slab cast on the floor, is removed from the insulating material.
  • the framework is not used as a reinforcement system for the expendable form per se, but it is used to be connected to and embedded in the concrete of the floor.
  • EP-A-0 459 924 discloses expendable panels or forms consisting of foamed plastic material, usually polystyrene, having a generically rectangular parallelepiped shape provided with lateral half seats or ribs, which forms are being laid on a temporary support frame for casting the floors.
  • the concrete lays on said expendable forms and on the framework of the beams forming, in this way, ribbed concrete floors.
  • the expendable forms are very useful since they replace the classical hollow floor bricks but, on the other hand, it is necessary to fit out a complex temporary support frame for the framework of the beams and for the expendable forms.
  • the subject matter of the present invention is a new panel or an expendable form as characterized in claim 1 and 2. It is provided with a conglomerated metallic falsework in order to be self supporting during the transport and the casting phase.
  • the expendable form has a rectangular plan with modular width (for example 60 cm.), or a different plan corresponding to the distance between the centres of the main falsework of the floor, said plan is three-five metres long in connection to the clear span.
  • the vertical section of the expendable form is particularly conformed, that is, generically rectangular and, in a first alternative, with a central V-shaped seat which is in upper position.
  • the width and the depth of said seat are as to house the falsework of the main beams of the floor for carrying out concrete ribbed floors.
  • the two sides of the section of the new expendable form have some parts with projection or flute shapes, in this way it is possible to position the expendable forms side by side inserting the projection of an expendable form to the flute of the adjacent one.
  • a falsework is conglomerated in the expendable form and in line with its length, said falsework supports the expendable form and the additional weight of the casting concrete of the slab and of the beams.
  • Said conglomerated falsework of the expendable form consists of one or more rods arranged in a triangle with the top vertex (or the bottom one) joined by means of rods with a smaller diameter.
  • said section bar constitutes a solid seat for fastening the assembly screws of the panels of the false ceiling.
  • the expendable form can be provided with lightening holes lined up with the largest dimension of said form. Said holes reduce the weight of the form as well as the quantity of plastic material used for carrying out a form.
  • the new expendable forms carried out in this way show many advantages, first of all when they are being laid directly on the lateral abutments of the floor they instantly make up the ribs on which the falsework of the beams is inserted.
  • a further advantage is that said form is self-supporting. In case of great distance between the points of support a temporary support (intermediate support) can be inserted.
  • Another important advantage is the insulating capacity of the form, both from a thermic point of view and a from an acoustic one, without the presence of thermic conductions.
  • the new form can be realized with a different shape; instead of the central seat V-shaped in which the main falsework of the floor is housed, a second alternative provides two half seats or ribs so that the two forms positioned side by side can generate a seat or a whole rib between them.
  • the section of the new form has an isosceles trapezoid shape with lateral ribs on the edges of the main base so as to space properly the two adjacent forms.
  • Figure 1 partially shows an axonometric view of the new form.
  • the shape of the part made of plastic material (1) is clearly shown with a generically rectangular section and a central upper section V-shaped (1.1), a projection (1.2) on one side and a flute (1.3) on the other side.
  • Figures 2 and 3 show two further forms of making the part made of plastic (1) in which in place of the central V-shaped seat there are two half-seats (1.5) so that two expendable forms positioned side by side can generate a whole seat between them.
  • the section of the part made of plastic material is isosceles trapezoid shaped with lateral rib (1.6) on the edges of the main base so as to space properly the two adjacent forms.
  • FIG. 3 shows a version of the new form in which there is a section bar (3) supporting the false ceiling.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Surgical Instruments (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Macromonomer-Based Addition Polymer (AREA)
  • Polyesters Or Polycarbonates (AREA)

Claims (5)

  1. Coffrage perdu pour planchers en béton, constitué d'un bloc longitudinal (1) en mousse de plastique ayant un section essentiellement rectangulaire qui présente, sur sa face supérieure, un logement (1.1) en forme de V, ledit bloc (1) comprenant une ou plusieures armatures de renfort (2) en tiges de fer, caractérisé par le fait que chaqune de ces armatures de renfort (2) est constituée de trois tiges formant une section triangulaire entièrement noyée dans ledit bloc (1) entre le logement (1.1) en forme de V et une arête latérale dudit bloc, tandis que le logement (1.1) en forme de V est libre pour accueillir l'armature des poutres principales du plancher.
  2. Coffrage perdu pour planchers en béton, constitué d'un bloc longitudinal (1) en mousse de plastique ayant un section essentiellement rectangulaire qui présente, sur sa face supérieure, des arêtes obliques latérales (1.5) de sorte que deux blocs longitudinaux positionnés l'un à côté de l'autre forment entre eux un logement (1.1) en forme de V, ledit bloc (1) comprenant une ou plusieures armatures de renfort (2) en tiges de fer, caractérisé par le fait que chaqune des armatures de renfort (2) est constituée de trois tiges formant une section triangulaire entièrement noyée dans ledit bloc (1) entre lesdites arêtes obliques laterales (1.5) dudit bloc, tandis que le logement (1.1) en forme de V est libre pour accueillir l'armature des poutres principales du plancher.
  3. Coffrage perdu selon la revendication 1 ou 2, caractérisé par le fait que les arêtes laterales du bloc longitudinal (1) présentent des parties en saillie (1.2; 1.6) sur un côté et des nervures ou gorges (1.3) sur l'autre côté.
  4. Coffrage perdu selon une des revendications précédentes, caractérisé par le fait que dans ledit bloc (1) des cavités d'allègement (1.4) sont formées entre lesdits logements (1.1) en forme de V.
  5. Coffrage perdu selon une des revendications précédentes, caractérisé par le fait que dans ledit bloc (1) une ou plusieures barres profilées (3) sont intégralement noyées pour la fixation d'un faux-plafond.
EP99118277A 1998-09-18 1999-09-15 Coffrage perdu pour planchers Expired - Lifetime EP0987377B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1998PD000220A IT1302499B1 (it) 1998-09-18 1998-09-18 Cassero a perdere per solai
ITPD980220 1998-09-18

Publications (3)

Publication Number Publication Date
EP0987377A2 EP0987377A2 (fr) 2000-03-22
EP0987377A3 EP0987377A3 (fr) 2001-02-07
EP0987377B1 true EP0987377B1 (fr) 2005-08-03

Family

ID=11392322

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99118277A Expired - Lifetime EP0987377B1 (fr) 1998-09-18 1999-09-15 Coffrage perdu pour planchers

Country Status (5)

Country Link
EP (1) EP0987377B1 (fr)
AT (1) ATE301218T1 (fr)
DE (1) DE69926454T2 (fr)
ES (1) ES2247752T3 (fr)
IT (1) IT1302499B1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100350113C (zh) * 2003-10-21 2007-11-21 邱则有 一种空腔模壳构件
US8997420B2 (en) * 2004-11-29 2015-04-07 Victor Amend Reinforced insulated forms for constructing concrete walls and floors
WO2006079355A1 (fr) * 2005-01-28 2006-08-03 Domopan, S.P.A. Panneau en matiere plastique expansee pour construire une construction a dalle, dalle et procede de construction impliquant un tel panneau
ME00560B (me) * 2005-11-15 2011-12-20 Milan Kekanović MOGUĆNOST SPECIJALNOG OLAKŠANJA, IZOLOVANJA I ARMIRANJA MEĐUSPRATNlH KONSTRUKCIJA
RS54106B1 (en) 2011-08-03 2015-10-30 Milan KEKANOVIĆ PROCEDURE FOR CONSTRUCTION OF BUILDINGS FROM MONTALLITE WALLS AND INTERMEDIATE PANELS
DE102016006779A1 (de) * 2016-06-01 2017-12-07 Nikolaus Kirsch Armierte Hartschaumplatten (Styropor) als Deckenschalung am Bau
IT201600099438A1 (it) * 2016-10-04 2018-04-04 Tekno Fabbrica S R L Panel made from expanded plastic meterial for building slab construction, slab and construction method comprising such a panel

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4272230A (en) * 1975-09-05 1981-06-09 Solai Vignola Di Faviani Orlando Ec Societa Slip form for building components
FR2361512A1 (fr) * 1976-08-12 1978-03-10 Joannes Andre Panneau de construction prefabrique et procede de fabrication
AU586425B2 (en) * 1985-05-17 1989-07-13 Radva Corporation Insulating building panel for column and beam structure
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.
IT1265542B1 (it) * 1993-10-05 1996-11-22 Ntc Srl Elemento prefabbricato per la realizzazione di solai di edifici.
IT1284961B1 (it) * 1996-10-15 1998-05-28 Plastedil Sa Elemento costruttivo autoportante in materia plastica espansa in particolare per la realizzazione di solai e pareti di edifici

Also Published As

Publication number Publication date
DE69926454T2 (de) 2006-06-08
IT1302499B1 (it) 2000-09-05
ES2247752T3 (es) 2006-03-01
DE69926454D1 (de) 2005-09-08
ATE301218T1 (de) 2005-08-15
ITPD980220A1 (it) 2000-03-18
EP0987377A2 (fr) 2000-03-22
EP0987377A3 (fr) 2001-02-07

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