WO1999055978A1 - Structure de sol - Google Patents

Structure de sol Download PDF

Info

Publication number
WO1999055978A1
WO1999055978A1 PCT/SE1999/000657 SE9900657W WO9955978A1 WO 1999055978 A1 WO1999055978 A1 WO 1999055978A1 SE 9900657 W SE9900657 W SE 9900657W WO 9955978 A1 WO9955978 A1 WO 9955978A1
Authority
WO
WIPO (PCT)
Prior art keywords
case
floor structure
structure according
profiles
former
Prior art date
Application number
PCT/SE1999/000657
Other languages
English (en)
Inventor
Anders GRANSTRÖM
Nils-Gustav Svensson
Original Assignee
Granstroem Anders
Svensson Nils Gustav
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 Granstroem Anders, Svensson Nils Gustav filed Critical Granstroem Anders
Priority to EP99947043A priority Critical patent/EP1073808A1/fr
Publication of WO1999055978A1 publication Critical patent/WO1999055978A1/fr
Priority to NO20005325A priority patent/NO20005325L/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

  • a building used as an office, industrial plant, or occasionally as a residential building, is generally made of in situ poured concrete or is alternatively constructed with a frame of columns and beams or wall slabs made of concrete or steel or sometimes timber
  • the beams and/or the wall slabs bear in turn floor elements with additional jointing, reinforcement, and top casting or flow filling
  • the elements are painted or covered by a false ceiling in order to obtain space for installations and improved sound comfort
  • the most common type of floor element is the cellular floor unit, which can span over large bays at reasonable cost
  • the weight of the units requires an expensive crane for the assembling, especially where the out-reach of the jib has to be great
  • the in situ poured concrete frame is more time-consuming to build, is not economically capable of large spans, requires scaffolding and pulling down of the form-work, and involves extensive costs for cleaning and filling etc
  • the in situ pouring forms a rigid frame, which easily can be adapted to various requirements for installations and cantilevering floors and can be given good sound and fire protection properties
  • corrugated sheet In North America corrugated sheet is often used as dead mould for a poured concrete layer The free span is even smaller than for an ordinary in situ poured structure, and the system requires a beam grid, an additional false ceiling e t c As an other opportunity the sheet could be propped by ledgers, which is a nuisance especially where propping is required several storeys down the building The same situation applies to dead mould made of concrete, so-called filiform floor units A few years ago efforts were made to use case profiled steel sheet units filled with concrete These units needed also propping that left visible intrusions after the pulling down of the ledgers In order to save reinforcement 2 and to use the sheet as reinforcement in the finished structure the corrugated sheet is often shaped with irregularities, which at static loading clamp to the concrete and produce composite action between the sheet and the concrete. In most cases a false ceiling is required with these types of structures.
  • the aim of the invention is to provide an overall solution to the actual problem without said disadvantages.
  • the invention is a further development of the technology described in SE, C2, 501 583 for bridges and similar structures, where steel case profiles, with at the top closely spaced cuts for reinforcement bars, by mechanical contact to the reinforcement bars perform in composite action with concrete poured in- and onto the profiles. Since space is left for a sufficient number of fasteners through the bottom of the case profile into the load bearing beam there is a possibility to obtain composite action with the beam, which increases its stiffness and load bearing capacity.
  • the shape is further developed for buildings.
  • thin plate in the thickness range 1 to 3 mm used, which may be produced as plate strip on 3 coils with finished coating at low cost. Since composite action is obtained by mechanical contact at the cuts at the top of the case profile the concrete in the bottom of the case may be substituted by a light porous and sound insulating material such as haydite, aerated concrete or mineral wool. Since the cost for such a material is only a fraction of that of concrete, and since the floor is not intended for as great concentrated loads as those on a bridge, the case profile may be shaped deeper than in the above mentioned patent and be furnished with one or more grooves when needed to prevent local buckling.
  • transverse embossments may be used for part of the lower flange in order to improve walking comfort. Since the dead load is small the case profile may span over 12 m without propping at only 1.5 mm plate thickness and about 300 mm total floor thickness.
  • the lower flange acts as tensile reinforcement, the webs of the case profile as shear reinforcement, the reinforcement bars as shear connectors, and the concrete as compression zone. Since the lower flange is larger than the top flanges of the case profile but smaller than the concrete compression zone the floor can bear a considerably greater load than in the construction state.
  • the load bearing capacity at supports may be increased by locally pouring concrete all the way down to the bottom of the case profile, and continuity moments at intermediate supports may be carried by additional top reinforcement in the direction of the case profile.
  • the smooth painted underside of the case profile requires no false ceiling. Installations may easily be located in the light filling material and connections may be arranged through the concrete slab or the case profile.
  • the sound insulating 4 properties may be further improved by perforation of the lower flange of the case profile as in an acoustic board.
  • the fire insulation of the case profile is good due to the fact that its top is cased in the cast concrete and its bottom is painted by a fire-retarding paint.
  • By filling the bottom of the case profile with a thin layer of a material with good thermal capacity, such as a layer of concrete grout or plaster it is sufficient with a single treatment of fire-retarding paint.
  • the underside of the case profile could always be covered with some board and painted.
  • the floor could preferably be used on sleeper walls. Since all the included material is resistant to humidity the ventilation of the foundation may be reduced.
  • the interior filling material is also heat insulating. Water-conducted under-floor heating may easily be placed in those cuts of the case profiles where reinforcement is not located. Where the shear load capacity is sufficient the webs of the case profile may also be perforated. All these factors reduce the energy consumption of the building.
  • the surface When pouring the concrete light insulation products not in the shape of board, such as haydite, may have a tendency to float up.
  • the surface may be stabilised by concrete grout or covered by a net, a mat or a board. It may be foil-lined in order to reflect heat back to the building.
  • the floor is very easy to assemble, even as simply constructed that it may be used for self-construction. All included components are so light that they may be installed by hand without big jibs. Case profiles equipped by sealing strips may be shot-fastened to the support. Installations may be put into the case profiles. Insulation boards may be pre-installed in the bottom of the case profiles, or haydite may be poured or blown into it. Reinforcement is placed into the cuts and the concrete is poured by concrete pump and finished. 5
  • Figure 1 shows in cross section through the case profiles a floor construction.
  • Figure 2 shows in longitudinal section a floor supported by a steel frame at an exterior wall.
  • Figure 3 shows in longitudinal section a floor supported by a timber or light gage steel structure at an exterior wall.
  • Figure 4 shows in longitudinal section a floor supported by a sleeper wall.
  • Figure 5 shows in longitudinal section a floor used as a roof.
  • Figure 6 shows in longitudinal section a floor at an intermediate support.
  • a floor in cross section may look like figure 1.
  • the bottom of the floor (1) consists of case profiles made of galvanised and paint coated steel sheet.
  • the case profile may be painted by fire-retarding paint.
  • a heat absorbent material (2 ) At bottom of the case profile is a heat absorbent material (2 ), which is covered by a light sound- and heat insulating spacer material (3).
  • reinforcement bars (4) In some of the cuts in the case profiles are reinforcement bars (4).
  • the top flange of the case profile and the reinforcement are cased in a concrete casting (5).
  • the gap between the case profiles is sealed by a sealing tape (6) or by pre-set sealing strips (8) located in groves (7) used to prevent local buckling.
  • On top of the floor may any surface layer (9) be put, such as linoleum, an impact sound reduction mat, parquet, additional sealing, clinker e t c. 6
  • Figures 2, 3 and 4 show longitudinal sections of the floor supported by a steel frame (11), a timber- or light gage steel structure (12) or sleeper walls (13). In cuts without reinforcement (4) floor heating pipes (10) may be located.
  • figure 5 is shown a construction used as a roof with a coping (14) and with a concrete termination (15).
  • figure 6 is shown a construction at an intermediate support as an underlying beam (16).
  • the concrete (17) is cast all the way down to the bottom flange of the case profile in order to stabilise the web of the case profile and to form a compression zone for the supporting moment.
  • Reinforcement (18) is put to bear that part of the moment tension force which is not carried by the top flange of the case profile.
  • the case profile (1 ) is made of black, galvanised or aluminium-galvanised coiled plate strip that may be painted, or of stainless steel in the thickness range 1 to 3 mm.
  • the cuts in the case profiles are punched.
  • the case profile is roll formed, which allows for excess height, or edge pressed.
  • the case profiles are 100 to 300 mm deep and 300 to 600 mm wide.
  • the spacer material consists of haydite or mineral wool or glass wool or a combination of these with particular densities in order to obtain the best sound performance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Floor Finish (AREA)
  • Building Environments (AREA)

Abstract

L'invention concerne une technologie permettant de construire des sols que l'on peut installer sur de larges étendues à faible coût. Le sol contient des profilés caissons d'acier (1) qui, à l'état de construction, sont auto-porteurs. A l'état de service, le sol est une structure composite ayant la capacité de supporter des charges élevées, mêmes des charges mobiles élevées. Le sol permet l'extension d'une installation sans nécessiter de faux-plafond. Il a une face inférieure lisse et déjà peinte et une surface supérieure lisse, prête à recevoir une finition, éventuellement des surfaces d'usure. Le sol s'adapte à des murets, à des sols et plafonds intermédiaires, voire même à des ponts avec trafic.
PCT/SE1999/000657 1998-04-24 1999-04-22 Structure de sol WO1999055978A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP99947043A EP1073808A1 (fr) 1998-04-24 1999-04-22 Structure de sol
NO20005325A NO20005325L (no) 1998-04-24 2000-10-23 Bjelkelagskonstruksjon

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9801464A SE512156C2 (sv) 1998-04-24 1998-04-24 Bjälklagskonstruktion
SE9801464-0 1998-04-24

Publications (1)

Publication Number Publication Date
WO1999055978A1 true WO1999055978A1 (fr) 1999-11-04

Family

ID=20411096

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1999/000657 WO1999055978A1 (fr) 1998-04-24 1999-04-22 Structure de sol

Country Status (4)

Country Link
EP (1) EP1073808A1 (fr)
NO (1) NO20005325L (fr)
SE (1) SE512156C2 (fr)
WO (1) WO1999055978A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1258574A2 (fr) * 2001-05-16 2002-11-20 Rautaruukki OYJ Dalle composite porteuse pour bâtiments
EP1528175A1 (fr) * 2003-10-30 2005-05-04 Arcelor Construction France Panneau autoportant résistant au feu pour le bâtiment
WO2007056833A1 (fr) * 2005-11-21 2007-05-24 Bluescope Steel Limited Dalle de beton coulee sur place
JP2016151160A (ja) * 2015-02-19 2016-08-22 新日鐵住金株式会社 デッキ合成床構造

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2098568A5 (fr) * 1970-07-10 1972-03-10 Catesson Claude
SE445569B (sv) * 1983-01-03 1986-06-30 Dobel Ab Kassett vid gjutning av bjelklag
SE501583C2 (sv) * 1992-10-29 1995-03-20 Anders Granstroem Brokonstruktion
SE505550C2 (sv) * 1996-05-30 1997-09-15 Plannja Ab Samverkansbjälklag - kvarsittande form

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2098568A5 (fr) * 1970-07-10 1972-03-10 Catesson Claude
SE445569B (sv) * 1983-01-03 1986-06-30 Dobel Ab Kassett vid gjutning av bjelklag
SE501583C2 (sv) * 1992-10-29 1995-03-20 Anders Granstroem Brokonstruktion
SE505550C2 (sv) * 1996-05-30 1997-09-15 Plannja Ab Samverkansbjälklag - kvarsittande form

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1258574A2 (fr) * 2001-05-16 2002-11-20 Rautaruukki OYJ Dalle composite porteuse pour bâtiments
EP1258574A3 (fr) * 2001-05-16 2003-09-03 Rautaruukki OYJ Dalle composite porteuse pour bâtiments
EP1528175A1 (fr) * 2003-10-30 2005-05-04 Arcelor Construction France Panneau autoportant résistant au feu pour le bâtiment
FR2861770A1 (fr) * 2003-10-30 2005-05-06 Arcelor Construction France Panneau autoportant resistant au feu pour le batiment
WO2007056833A1 (fr) * 2005-11-21 2007-05-24 Bluescope Steel Limited Dalle de beton coulee sur place
JP2016151160A (ja) * 2015-02-19 2016-08-22 新日鐵住金株式会社 デッキ合成床構造

Also Published As

Publication number Publication date
NO20005325L (no) 2000-10-24
SE512156C2 (sv) 2000-02-07
EP1073808A1 (fr) 2001-02-07
SE9801464D0 (sv) 1998-04-24
NO20005325D0 (no) 2000-10-23
SE9801464L (sv) 1999-10-25

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