EP4123099A1 - Plaque préfabriquée multi-usage - Google Patents

Plaque préfabriquée multi-usage Download PDF

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Publication number
EP4123099A1
EP4123099A1 EP22183192.8A EP22183192A EP4123099A1 EP 4123099 A1 EP4123099 A1 EP 4123099A1 EP 22183192 A EP22183192 A EP 22183192A EP 4123099 A1 EP4123099 A1 EP 4123099A1
Authority
EP
European Patent Office
Prior art keywords
slab
prefabricated slab
prefabricated
lightening
concrete
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.)
Pending
Application number
EP22183192.8A
Other languages
German (de)
English (en)
Inventor
Francesco CENZON
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.)
Eiseko Engineering Di Cenzon Francesco E Pomini Giorgio
Original Assignee
Eiseko Engineering Di Cenzon Francesco E Pomini Giorgio
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 Eiseko Engineering Di Cenzon Francesco E Pomini Giorgio filed Critical Eiseko Engineering Di Cenzon Francesco E Pomini Giorgio
Publication of EP4123099A1 publication Critical patent/EP4123099A1/fr
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/44—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose
    • E04C2/50—Self-supporting slabs specially adapted for making floors ceilings, or roofs, e.g. able to be loaded
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/044—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres of concrete
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/06—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres reinforced
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
    • E04C2/288—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and concrete, stone or stone-like material
    • E04C2/2885—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and concrete, stone or stone-like material with the insulating material being completely surrounded by, or embedded in, a stone-like material, e.g. the insulating material being discontinuous
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2002/001—Mechanical features of panels
    • E04C2002/002—Panels with integrated lifting means, e.g. with hoisting lugs

Definitions

  • the present invention relates, in general, to a multi-purpose prefabricated slab, called "Eisekofly-Dalle-Beton-Papier". More specifically, it is a prefabricated reinforced concrete (R.C.) or prestressed reinforced concrete (P.C.) slab with special features that allow it to be used in an easy and advantageous manner compared to known precast slabs.
  • R.C. prefabricated reinforced concrete
  • P.C. prestressed reinforced concrete
  • prefabricated two-dimensional structures known as precast slabs
  • precast slabs are usually used to quickly construct slabs.
  • the best known prefabricated slab is the hollow core slab. It is a self-supporting structure, made of concrete with pre-stressed reinforcement made of strands, without shear reinforcement or distribution nets.
  • the honeycomb slab usually has a width of 120 cm or less and a height between 12 and 70 cm.
  • Holes are cut into the inside of the honeycomb slab to make the structure lighter.
  • the honeycomb slab is usually manufactured using an automatic extrusion machine that also creates the lightening holes, the number of which varies depending on the manufacturer and the application requirements.
  • honeycomb slab The most significant problem with the honeycomb slab is precisely the need to use special machines to make it, which increases its cost and, above all, makes it inflexible in terms of size and shape.
  • Another well-known prefabricated slab type is the 'Predalle' slab, which has a width of 250 cm or less and a height of between 15 and 70 cm.
  • the 'Predalle' slab is self-supporting and is made of pre-stressed concrete and prestressed reinforcement.
  • the 'Predalle' slab has reinforcement made of strands and/or slow reinforcement, nets and stirrups. Lightening is achieved by means of polystyrene shapes.
  • the production of the "Predalle" slab takes place in successive steps on a flat bench, working in layers. As a result, it is not possible to cut holes as in the case of the honeycomb slab, but by means of polystyrene shapes that can have various conformations, although the typical one is rectangular in cross-section.
  • the 'Predalle' slab cannot be used in all those countries where the use of non-eco-compatible materials is prohibited.
  • the purpose of the present invention is to offer a prefabricated slab that is lightened without the aid of polluting lighteners.
  • Another purpose of the invention is to provide a prefabricated slab that is easily fabricated.
  • a further purpose of the invention is to provide a prefabricated slab whose mode of construction allows it to be manufactured flexibly, varying in size, shape and characteristics according to the requirements of use.
  • a prefabricated slab comprising a concrete structure and reinforcement.
  • the prefabricated slab according to the invention is characterised by comprising within it at least one lightening element made of a material typically chosen from paper or cardboard or both, said element being capable of creating a volume of lower density than the concrete portion within the prefabricated slab.
  • the lightening of the slab according to the invention is achieved without the aid of polystyrene moulds or other petroleum-derived and therefore environmentally unfriendly material.
  • the one or more lightening elements can be internally filled, so as to avoid any bending or folding.
  • the one or more lightening elements may be internally hollow, so as to further decrease the weight of the slab of the invention.
  • one or more lightening elements may have a parallelepiped shape and/or a cylindrical shape depending on the overall volume and dimensions of the prefabricated slab to be lightened.
  • This reinforcement usually comprises at least one strand or mesh or both.
  • the prefabricated slab may comprise at least one strand and/or at least one mesh and/or one U-element.
  • the U-shaped element may protrude from the structure, so as to be a useful coupling element for an eventual casting above the prefabricated slab itself.
  • the prefabricated slab may comprise at least one fastening element useful for lifting the prefabricated slab when it is to be placed in the desired position.
  • a prefabricated slab according to the invention is referred to as 10 in its entirety.
  • the precast slab 10 comprises a concrete structure 12 in the shape of a parallelepiped in which strands are embedded.
  • a lower mesh 16 and an upper mesh 18, both made of a metal alloy, are also embedded in the concrete structure 12 so as to make, together with the strands 14, a reinforcement embedded in the concrete structure 12.
  • Three parallelepiped lightening elements 20 are included in the concrete structure 12 to lighten the precast slab 10.
  • parallelepiped elements 20 are made entirely of cardboard; in other words, the volume defined by such parallelepiped elements is entirely occupied by cardboard.
  • such parallelepiped elements 20 may be internally hollow, i.e. made with only the perimeter faces of cardboard.
  • the prefabricated slab 10 according to the invention also comprises first U-shaped elements 22, which are entirely embedded in the concrete structure 12, and second U-shaped elements 24, which protrude superiorly from the same structure 12.
  • Such second U-shaped elements 24 serve to allow for a better coupling with the possible casting arranged above the precast slab 10.
  • fastening elements 26 useful for lifting the prefabricated slab 10 when it is to be arranged in the desired position.
  • a prefabricated slab 110 comprises a parallelepiped-shaped concrete structure 112 in which strands are embedded.
  • a lower mesh 116 and an upper mesh 118, both of metal alloy, are also embedded in the concrete structure 112, so as to create, together with the strands, a reinforcement embedded in the concrete structure 112.
  • cylindrical elements 120 are made entirely of cardboard; in other words, the volume defined by such parallelepiped elements is entirely occupied by cardboard.
  • cylindrical elements 120 may be internally hollow, i.e. made with only the perimeter faces of cardboard.
  • the prefabricated slab 110 according to the invention also comprises first U-shaped elements 122, entirely embedded in the concrete structure 112, and second U-shaped elements 124, which protrude superiorly from the same structure 112.
  • Such second U-shaped elements 124 serve to allow for a better coupling with the possible casting disposed above the precast slab 110.
  • Fixing elements 126 are arranged at the four corners of the structure 112, which are useful for lifting the prefabricated slab 110 when it is to be arranged in the desired position.
  • the shape of the lightening elements may be other than parallelepiped or cylindrical.
  • lightening elements such as parallelepiped elements 20 or cylindrical elements 120 makes it possible to avoid the use of shapes of polystyrene or other petroleum-derived material, while still achieving the desired lightening.
  • the lightening element realised can comprise a containing structure made of paper and/or cardboard inside which is arranged a honeycomb or lattice structure, also typically made of paper and/or cardboard or another nonpolluting material, with the purpose of lightening the slab, but at the same time giving solidity to the lightening element itself.
  • the honeycomb or lattice structure can be filled with lightening material with a lower density than concrete.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
EP22183192.8A 2021-07-06 2022-07-05 Plaque préfabriquée multi-usage Pending EP4123099A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT202100017796 2021-07-06

Publications (1)

Publication Number Publication Date
EP4123099A1 true EP4123099A1 (fr) 2023-01-25

Family

ID=84389187

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22183192.8A Pending EP4123099A1 (fr) 2021-07-06 2022-07-05 Plaque préfabriquée multi-usage

Country Status (1)

Country Link
EP (1) EP4123099A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE626689A (fr) *
EP0857836A2 (fr) * 1997-02-06 1998-08-12 Miguel Maria Imaz Odriozola Améliorations dans la construction de dalles sans poutres
US6272805B1 (en) * 1993-06-02 2001-08-14 Evg Entwicklungs- U. Verwertungs- Gesellschaft M.B.H. Building element
CN1337510A (zh) * 2001-09-30 2002-02-27 邱则有 一种现浇预制组合空心钢筋砼平板楼盖

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE626689A (fr) *
US6272805B1 (en) * 1993-06-02 2001-08-14 Evg Entwicklungs- U. Verwertungs- Gesellschaft M.B.H. Building element
EP0857836A2 (fr) * 1997-02-06 1998-08-12 Miguel Maria Imaz Odriozola Améliorations dans la construction de dalles sans poutres
CN1337510A (zh) * 2001-09-30 2002-02-27 邱则有 一种现浇预制组合空心钢筋砼平板楼盖

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