WO1996002711A1 - Plancher a action composite - Google Patents

Plancher a action composite Download PDF

Info

Publication number
WO1996002711A1
WO1996002711A1 PCT/SE1995/000756 SE9500756W WO9602711A1 WO 1996002711 A1 WO1996002711 A1 WO 1996002711A1 SE 9500756 W SE9500756 W SE 9500756W WO 9602711 A1 WO9602711 A1 WO 9602711A1
Authority
WO
WIPO (PCT)
Prior art keywords
concrete
floor structure
composite floor
sheet
structure according
Prior art date
Application number
PCT/SE1995/000756
Other languages
English (en)
Inventor
Jan Strömberg
Original Assignee
Plannja Ab
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 Plannja Ab filed Critical Plannja Ab
Priority to AU29942/95A priority Critical patent/AU2994295A/en
Publication of WO1996002711A1 publication Critical patent/WO1996002711A1/fr
Priority to DK199700035A priority patent/DK174207B1/da
Priority to NO970121A priority patent/NO308144B1/no

Links

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
    • E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
    • E04B5/40—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element with metal form-slabs

Definitions

  • the present invention relates to a composite floor structure according to the preamble of Claim 1.
  • So-called composite floor structures are cast with the aid of a profiled plate as a working platform and permanent mould.
  • the profiled plate coacts with the concrete.
  • the profiled plate is not normally capable of supporting the load exerted by the wet concrete laid down in conjunction with concrete casting operations, making it necessary to support the structure from beneath.
  • the task of propping-up or likewise supporting a newly cast concrete floor structure is both expensive and time-consuming.
  • the building construction schedule as a whole is thus controlled essentially by the process of casting the concrete floor structures.
  • the object of the present invention is to provide a composite floor structure which in the concrete casting stage is able to withstand the same bearing stresses as the finished floor structure, so as to eliminate the need of supporting the structure from beneath.
  • This object is achieved with a composite floor structure that has the characteristic features set forth in the following Claims.
  • One advantage afforded by the invention is that it enables a building to be erected in a much more effective manner than was previously possible, due to the fact that it is no longer necessary to shore or prop-up the floor structure from beneath.
  • the invention enables the floor structures of a multi-storey building to be continued right up to the roof of the building, with all floor structures being cast sequentially in succession. The invention thus enables time to be saved and the work involved to be carried out in a more effective and efficient manner.
  • An inventive composite floor structure also requires less reinforcement and therewith provides gains by virtue of smaller material consumption.
  • Fig. 1 is a cross-sectional view of part of an inventive composite floor structure
  • Fig. 2 is a perspective view of the part of said floor structure shown in Fig. 1
  • Figs. 3 and 4 are cross-sectional views of parts of alternative embodiments of the inventive composite floor structure.
  • the invention first involves the construction of a floor structure from prefabricated sandwich elements which function as a mould and which are designed to coact with the concrete in a manner to obtain an ideal composite floor structure.
  • the sandwich elements are sufficiently strong and rigid to withstand short-term loads, the core material of said elements will contract or shrink with time, making the sandwich elements unsuitable for long-term floor structures.
  • Fig. 1 shows two juxtapositioned sandwich elements 1 which, although not shown, may be placed on a number of primary beams, and which are mutually connected along their long side-edges such as to form a casting platform.
  • the sandwich element 1 may be prefabricated and includes an upper sheet 2, made of sheet metal or steel plate, for instance, a core part 3 made of lightweight material, such as expanded polystyrene, polyurethane or mineral wool, and a bottom sheet 4 made of sheet metal or steel plate, for instance.
  • the sheets 2 and 4 are joined to the core 3 by gluing, heat-fusion or by adhesion.
  • An undercut 10 is provided along the longitudinal side edges of the core 3.
  • the longitudinal side edges of the bottom sheet 4 have an outwardly projecting part 11 which is terminated with an angled end-part 12 which includes concrete-engagement means in the form of holes 13, so as to obtain the best possible engagement of the element with the concret .
  • the top sheet 2 is provided along its longitudinally extending side edges with an outwardly projecting part 14 which is angled downwards slightly and which also includes concrete-engagement means in the form of holes 15, to obtain the best possible concrete engagement.
  • the sandwich elements 1 are placed on the primary beams and mutually joined together with the aid of a connecting strip 20 which is screwed firmly to the outwardly projecting parts 11 of juxtapositioned sandwich elements 1, as made apparent in Figs. 1 and 2.
  • a connecting strip 20 which is screwed firmly to the outwardly projecting parts 11 of juxtapositioned sandwich elements 1, as made apparent in Figs. 1 and 2.
  • the thus mutually connected sandwich elements 1 are then ready for the casting of concrete 90, optionally after laying-out further reinforcements (not shown) , this concrete filling-out the gaps between the cores 3 of juxtapositioned sandwich elements 1 to a level 91, indicated by a chain line in Fig. 1.
  • this concrete filling-out the gaps between the cores 3 of juxtapositioned sandwich elements 1 to a level 91, indicated by a chain line in Fig. 1.
  • Subsequent to casting the concrete 90 there is obtained a highly effective composite floor structure in which the concrete 90 engages with the outwardly projecting parts 11 of the bottom sheet 4 and in which the concrete 90 is also in engagement with the outwardly projecting parts 14 of the top sheet 2.
  • the bottom sheet takes-up tension forces of bending moments
  • the overlying concrete takes-up compression forces of bending moments
  • the concrete present between the sandwich elements transmits shear forces between the bottom sheet and the overlying concrete, optionally strengthened with shear reinforcements. Any tendency of the core 3 to settle is counteracted by virtue of the engagement of the concrete 90 with the undercuts 10 in the cores 3.
  • Fig. 3 illustrates an alternative embodiment in which the outwardly projecting parts 11' of the bottom sheets 4' are angled so as to enable mutually adjacent or contiguous sandwich elements 1' to be screwed together without using separate connecting strips.
  • the outwardly projecting parts 11' and 14' of this embodiment also include concrete engaging means in the form of holes 13' and 15' .
  • the concrete level 91 is shown by a chain line.
  • Fig. 4 shows an alternative embodiment in which the outwardly projecting parts 11" of the bottom sheets 4" are angled upwards so that the concrete engaging means/holes 13" will be located above the vertical level of the top sheet 2".
  • the outwardly projecting parts 14" of the top sheets 2" are all angled upwards such that the concrete engagement means/holes 15" will be located above the vertical level of the top sheet 2".
  • This embodiment enables tight abutment to be achieved between the longitudinally extending side-edges of respective sandwich elements 1" .
  • the concrete level 91 is shown by a chain line.
  • the Figure also shows reinforcement bars 80 extending through the holes 13". In the case of this embodiment, the outwardly folded bottom sheet takes-up the shear forces acting between the bottom sheet and the cast concrete.
  • top sheet, core and bottom sheet of the sandwich element may be comprised of materials other than those recited in the aforegoing, without departing from the scope of the invention.
  • the top sheet may also be given a profiled structure which enhances its ability to take-up pressure forces that prevail when concrete is being cast. If desired, the top sheet may be provided with embossments over the whole of its surface, with the intention of promoting the coaction between the components of the composite floor structure. If desired, the bottom sheet may also be given a profiled structure and provided with embossments, in addition to that exemplified in the Figures.
  • inventive composite floor structure may be further strengthened if necessary, by including reinforcement bars or some other appropriate reinforcement .

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Floor Finish (AREA)
  • Bridges Or Land Bridges (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Abstract

La présente invention concerne une structure de plancher composite comportant un moule permanent sur lequel est coulé du béton (90). Ledit moule est constitué d'une pluralité d'éléments sandwich (1). Chaque élément sandwich (1) est constitué d'une feuille de couverture (2), d'une âme (3) et d'une feuille de fond (4). La feuille de fond (4) comporte une partie (11) qui déborde de l'âme (3) le long des chants longitudinaux de la feuille, la partie (11) saillante extérieurement comportant des éléments (13) assurant l'ancrage dans le béton coulé (90).
PCT/SE1995/000756 1994-07-13 1995-06-21 Plancher a action composite WO1996002711A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU29942/95A AU2994295A (en) 1994-07-13 1995-06-21 Deck with composite action
DK199700035A DK174207B1 (da) 1994-07-13 1997-01-10 Dæk med virkning som en sammensat konstruktion
NO970121A NO308144B1 (no) 1994-07-13 1997-01-10 Komposittgulvkonstruksjon

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9402465-0 1994-07-13
SE9402465A SE506735C2 (sv) 1994-07-13 1994-07-13 Samverkansbjälklag, i vilket ett sandwichelement använts som förlorad form

Publications (1)

Publication Number Publication Date
WO1996002711A1 true WO1996002711A1 (fr) 1996-02-01

Family

ID=20394714

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1995/000756 WO1996002711A1 (fr) 1994-07-13 1995-06-21 Plancher a action composite

Country Status (5)

Country Link
AU (1) AU2994295A (fr)
DK (1) DK174207B1 (fr)
NO (1) NO308144B1 (fr)
SE (1) SE506735C2 (fr)
WO (1) WO1996002711A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997045604A1 (fr) * 1996-05-30 1997-12-04 Plannja Ab Plancher composite et plateau destine a celui-ci
NL1026388C2 (nl) * 2004-06-11 2005-12-15 O & P Res And Dev Werkwijze voor het vervaardigen van een bouwconstructie, alsmede bekisting daarvoor.
WO2007056833A1 (fr) * 2005-11-21 2007-05-24 Bluescope Steel Limited Dalle de beton coulee sur place
WO2009010994A1 (fr) * 2007-07-16 2009-01-22 Metecno S.P.A. Panneau autoportant pour des planchers de bâtiment et plancher résultant de celui-ci
CN104032741A (zh) * 2014-06-30 2014-09-10 河北省水利工程局 一种水利工程大体积温控的快速施工方法
CN112211197A (zh) * 2020-11-11 2021-01-12 山东省水利科学研究院 一种水利工程大体积温控的快速施工方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU782222B2 (en) * 2000-04-06 2005-07-14 Stramit Corporation Pty Limited Improved structural decking

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1256387B (de) * 1959-11-20 1967-12-14 Fond S Batiments Et Travaux Pu Massivdecke
FR2098568A5 (fr) * 1970-07-10 1972-03-10 Catesson Claude
DE2339638B2 (de) * 1973-08-04 1978-06-22 Walter Dr.-Ing. 6101 Rossdorf Sowa Als Bewehrung für eine Betonverbunddecke dienende Schalungsplatte aus Blech
WO1984002734A1 (fr) * 1983-01-03 1984-07-19 Dobel Ab Cassette destinee au coulage d'une ossature en beton

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1256387B (de) * 1959-11-20 1967-12-14 Fond S Batiments Et Travaux Pu Massivdecke
FR2098568A5 (fr) * 1970-07-10 1972-03-10 Catesson Claude
DE2339638B2 (de) * 1973-08-04 1978-06-22 Walter Dr.-Ing. 6101 Rossdorf Sowa Als Bewehrung für eine Betonverbunddecke dienende Schalungsplatte aus Blech
WO1984002734A1 (fr) * 1983-01-03 1984-07-19 Dobel Ab Cassette destinee au coulage d'une ossature en beton

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997045604A1 (fr) * 1996-05-30 1997-12-04 Plannja Ab Plancher composite et plateau destine a celui-ci
NL1026388C2 (nl) * 2004-06-11 2005-12-15 O & P Res And Dev Werkwijze voor het vervaardigen van een bouwconstructie, alsmede bekisting daarvoor.
US7845138B2 (en) 2004-06-11 2010-12-07 Op-Deck Holdings B.V. Method for the production of a building construction as well as formwork therefor
WO2007056833A1 (fr) * 2005-11-21 2007-05-24 Bluescope Steel Limited Dalle de beton coulee sur place
WO2009010994A1 (fr) * 2007-07-16 2009-01-22 Metecno S.P.A. Panneau autoportant pour des planchers de bâtiment et plancher résultant de celui-ci
CN104032741A (zh) * 2014-06-30 2014-09-10 河北省水利工程局 一种水利工程大体积温控的快速施工方法
CN112211197A (zh) * 2020-11-11 2021-01-12 山东省水利科学研究院 一种水利工程大体积温控的快速施工方法

Also Published As

Publication number Publication date
NO308144B1 (no) 2000-07-31
DK174207B1 (da) 2002-09-23
DK3597A (da) 1997-01-10
NO970121D0 (no) 1997-01-10
SE9402465D0 (sv) 1994-07-13
NO970121L (no) 1997-01-10
SE506735C2 (sv) 1998-02-02
AU2994295A (en) 1996-02-16
SE9402465L (sv) 1996-01-14

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