EP0474310A1 - Procédé pour la fabrication d'un plancher en béton et tôle d'acier - Google Patents

Procédé pour la fabrication d'un plancher en béton et tôle d'acier Download PDF

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Publication number
EP0474310A1
EP0474310A1 EP91202275A EP91202275A EP0474310A1 EP 0474310 A1 EP0474310 A1 EP 0474310A1 EP 91202275 A EP91202275 A EP 91202275A EP 91202275 A EP91202275 A EP 91202275A EP 0474310 A1 EP0474310 A1 EP 0474310A1
Authority
EP
European Patent Office
Prior art keywords
concrete
steel plate
elements
tensioning elements
tensioning
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.)
Granted
Application number
EP91202275A
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German (de)
English (en)
Other versions
EP0474310B1 (fr
Inventor
Wolter R. De Sitter
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.)
Hollandsche Beton Groep NV
Original Assignee
Hollandsche Beton Groep NV
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Publication date
Application filed by Hollandsche Beton Groep NV filed Critical Hollandsche Beton Groep NV
Publication of EP0474310A1 publication Critical patent/EP0474310A1/fr
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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
    • 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 invention relates to a method for the production of a steel plate concrete floor, comprising the pouring of concrete mortar onto a steel plate which, for the purpose of increasing the adhesion between concrete and steel, is provided beforehand with anchoring elements projecting from the plane of the steel plate.
  • Prefabricated steel plate floor elements produced by this method are known.
  • the steel plate is U-shaped in cross-section, with a flat bottom. Owing to the self-weight of the prefab element and the effective load expected, the bottom side of the floor elements will be subjected to a tensile load. Although the tensile load is absorbed up to a certain value by the steel plate, the maximum permissible span of the floor elements will be limited on account of the fact that concrete can absorb only a very low tensile load. The maximum permissible span of the prefab elements produced with steel plate can be increased by using a thicker steel plate.
  • the object of the invention is to provide a method such as that indicated in the preamble which leads to steel plate concrete floors which can span a considerable length without the concrete being subjected to too great a tensile load under the influence of the weight of the floors themselves and the effective load, and without the deformations standing in the way a practical use.
  • one or more elements of elastic material such as steel which will bond to the concrete are subjected to a tensile load in the lengthwise direction of the steel plate.
  • the steel plate In order further to improve the bending resistance in the lengthwise direction, it is highly preferable for the steel plate to have a wavy or crenellated profile at right angles to the lengthwise direction.
  • tensioning elements are guided through the channels before or after pouring of the concrete mortar, and said tensioning elements are placed under a tensile load after setting of the concrete, the ends of the tensioning elements being anchored in the set concrete.
  • Said tensioning elements can be, for example, bars, wires or bunches of wires which can be made of steel or glass such as fibres which may or may not be embedded in epoxy resin, plastic such as aromatic polyamide filaments which may or may not be embedded in epoxy resin, or carbon fibres which may or may not be embedded in epoxy resin.
  • Parallel rectilinear tensioning elements which are pre-tensioned can be fitted at different levels in the thickness of the concrete. The same or better results can, however, be achieved with fewer tensioning elements if the tensioning elements extend in a wavy form through the concrete, the wave valleys being situated approximately halfway between the places where the floor is to be supported permanently in a building.
  • the steel plate can also be subjected to a tensile load in the lengthwise direction before the concrete mortar is poured by, for example, applying tensile forces to the ends. After setting of the concrete, the forces are removed from the ends.
  • the method according to the invention could be applied to the production of prefab floor elements, but it is pre-eminently suitable for application to construction itself for the production of extended floors, for example with a total length of 40 metres and spans of, for example, 10 metres.
  • the steel plate is supported at at least two opposite-lying edges by supporting elements of a building and between them by a number of temporary additional bearing elements such as screw jacks, the concrete mortar is poured onto the steel plate serving as the formwork element, and the above-mentioned additional bearing elements are removed after setting and pre-stressing of the concrete.
  • the anchoring elements are preferably made of studs rolled into the steel plate. These studs prevent the steel plate and the concrete from shifting relative to each other. The inside of the studs can be used at the bottom side of the floors for suspending ceilings, lines of cables and pipes and the like.
  • the floor shown in Figure 1 has a steel plate 1 with a crenellated profile extending at right angles to the lengthwise direction thereof, on which a layer of concrete 2 is poured.
  • the latter is provided with projecting anchoring elements in the form of studs 3 rolled into the steel plate.
  • form- retaining pipes 4 or the like are fitted over the steel plate in the lengthwise direction of the profile, through which tensioning elements 5 are guided before or after pouring of the concrete mortar.
  • tensioning elements 5 are pre-tensioned, and the ends of the tensioning elements are anchored in the concrete by means of anchoring elements 6.
  • Resin or mortar is injected into the pipes 4 for the purpose of anchoring and/or protection.
  • pre-tensioning is the use of virtually rectilinear tensioning elements running in the lengthwise direction of the steel plate floor virtually parallel to each other and at different levels in the thickness, which elements are not fitted in pipes. These tensioning elements are pre-tensioned before the concrete is poured by applying temporary forces to the ends, and the pre-tensioning is removed from the ends of the tensioning elements after the setting of the concrete, as a result of which the concrete is pre-stressed through the adhesion of concrete and tensioning elements. It goes without saying that all kinds of pre-tensioning combinations are possible.
  • the tensioning elements 5 for pre-tensioning run in a wavy form and, as can be seen from Figure 2, the wave parts are situated approximately halfway between the fixed supports 7 of the floor. So long as the concrete has not yet set, temporary bearing elements 8 such as screw jacks are placed under the floor and are removed after the concrete has set.
  • the method described above is particularly suitable for use in construction for the production of floors of large dimensions, in particular length dimensions.
  • the steel plate 1 forms a formwork element and replaces the main reinforcement consisting of a woven-wire cloth.
  • the pre-tensioned tensioning elements 5 lead to a very great maximum span length, in particular in conjunction with the profiling of the steel plate. As a result of this profiling and as a result of the steel plate being made thicker, less cable is needed.
  • tensioning elements 5 to be pre-tensioned do not run in a wavy form, they can be fitted at different levels parallel to each other in the concrete.
  • the steel plate 1 will have no side edges, so that for pouring of the concrete mortar temporary formwork boards will have to be fitted at the sides of the plate 1.
  • tensioning elements 5 for pre-tensioning and the steel plate 1 can absorb tensile load at the bottom side of the floor.
  • reinforced concrete floors can be made for a very great span without woven-wire cloth, with low thickness, a good bearing capacity, good rigidity and low deformation behaviour.
EP19910202275 1990-09-06 1991-09-05 Procédé pour la fabrication d'un plancher en béton et tÔle d'acier Expired - Lifetime EP0474310B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9001970 1990-09-06
NL9001970A NL9001970A (nl) 1990-09-06 1990-09-06 Werkwijze ter vervaardiging van een staalplaatbetonvloer.

Publications (2)

Publication Number Publication Date
EP0474310A1 true EP0474310A1 (fr) 1992-03-11
EP0474310B1 EP0474310B1 (fr) 1996-12-11

Family

ID=19857644

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910202275 Expired - Lifetime EP0474310B1 (fr) 1990-09-06 1991-09-05 Procédé pour la fabrication d'un plancher en béton et tÔle d'acier

Country Status (3)

Country Link
EP (1) EP0474310B1 (fr)
DE (1) DE69123517T2 (fr)
NL (1) NL9001970A (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998051878A1 (fr) * 1997-05-09 1998-11-19 Skone James, Robert, Edmund Construction de dallage
KR20040018808A (ko) * 2002-08-27 2004-03-04 전찬진 철근콘크리트 슬래브의 데크 패널
GB2426531A (en) * 2003-03-04 2006-11-29 Roxbury Ltd Forming building foundations
WO2015059321A1 (fr) * 2013-10-25 2015-04-30 Universidad De Sevilla Procédé d'obtention d'une dalle mixte à partir d'une tôle nervurée collaborante précontrainte par post-tension, à grandes portées
WO2016177920A1 (fr) * 2015-05-01 2016-11-10 Elastic Potential, S.L. Système de construction et procédé de montage dudit système de construction
ES2590536R1 (es) * 2015-05-01 2017-03-09 Elastic Potential, S.L. Sistema constructivo y procedimiento de montaje de este

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7013151A (fr) * 1970-09-04 1972-03-07
US3712010A (en) * 1970-08-17 1973-01-23 Univ Iowa State Res Found Prestressed metal and concrete composite structure
FR2233464A1 (en) * 1973-06-12 1975-01-10 Mascia Luciano Composite prestressed concrete and steel beam - has steel I beam with its bottom flange encased in stressed concrete
US3862479A (en) * 1972-10-06 1975-01-28 Maurice Laderoute Method for locating and supporting tendons in reinforced concrete structures
US4709456A (en) * 1984-03-02 1987-12-01 Stress Steel Co., Inc. Method for making a prestressed composite structure and structure made thereby
WO1988001330A1 (fr) * 1986-08-22 1988-02-25 Vainionpaeae Pentti W Production d'une coulee sur une tole profilee et tole profilee servant a l'application dudit procede
US4809474A (en) * 1988-04-01 1989-03-07 Iowa State University Research Foundation, Inc. Prestressed composite floor slab and method of making the same

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3712010A (en) * 1970-08-17 1973-01-23 Univ Iowa State Res Found Prestressed metal and concrete composite structure
NL7013151A (fr) * 1970-09-04 1972-03-07
US3862479A (en) * 1972-10-06 1975-01-28 Maurice Laderoute Method for locating and supporting tendons in reinforced concrete structures
FR2233464A1 (en) * 1973-06-12 1975-01-10 Mascia Luciano Composite prestressed concrete and steel beam - has steel I beam with its bottom flange encased in stressed concrete
US4709456A (en) * 1984-03-02 1987-12-01 Stress Steel Co., Inc. Method for making a prestressed composite structure and structure made thereby
WO1988001330A1 (fr) * 1986-08-22 1988-02-25 Vainionpaeae Pentti W Production d'une coulee sur une tole profilee et tole profilee servant a l'application dudit procede
US4809474A (en) * 1988-04-01 1989-03-07 Iowa State University Research Foundation, Inc. Prestressed composite floor slab and method of making the same

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998051878A1 (fr) * 1997-05-09 1998-11-19 Skone James, Robert, Edmund Construction de dallage
KR20040018808A (ko) * 2002-08-27 2004-03-04 전찬진 철근콘크리트 슬래브의 데크 패널
GB2426531A (en) * 2003-03-04 2006-11-29 Roxbury Ltd Forming building foundations
GB2426531B (en) * 2003-03-04 2007-05-23 Roxbury Ltd Forming building foundations
WO2015059321A1 (fr) * 2013-10-25 2015-04-30 Universidad De Sevilla Procédé d'obtention d'une dalle mixte à partir d'une tôle nervurée collaborante précontrainte par post-tension, à grandes portées
ES2537258A1 (es) * 2013-10-25 2015-06-03 Universidad De Sevilla Procedimiento para la obtención de un forjado mixto mediante chapa nervada colaborante postensado de grandes luces
WO2016177920A1 (fr) * 2015-05-01 2016-11-10 Elastic Potential, S.L. Système de construction et procédé de montage dudit système de construction
ES2590536R1 (es) * 2015-05-01 2017-03-09 Elastic Potential, S.L. Sistema constructivo y procedimiento de montaje de este

Also Published As

Publication number Publication date
DE69123517T2 (de) 1997-06-12
NL9001970A (nl) 1992-04-01
DE69123517D1 (de) 1997-01-23
EP0474310B1 (fr) 1996-12-11

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