WO2003048471A1 - Moule du type a enrobage pour la fabrication de structures de dalles de construction - Google Patents

Moule du type a enrobage pour la fabrication de structures de dalles de construction Download PDF

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Publication number
WO2003048471A1
WO2003048471A1 PCT/EP2002/010872 EP0210872W WO03048471A1 WO 2003048471 A1 WO2003048471 A1 WO 2003048471A1 EP 0210872 W EP0210872 W EP 0210872W WO 03048471 A1 WO03048471 A1 WO 03048471A1
Authority
WO
WIPO (PCT)
Prior art keywords
embedment
hollow body
mould element
type mould
element according
Prior art date
Application number
PCT/EP2002/010872
Other languages
English (en)
Inventor
Roberto Il Grande
Original Assignee
Daliform S.R.L.
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11453314&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2003048471(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Daliform S.R.L. filed Critical Daliform S.R.L.
Priority to AU2002347034A priority Critical patent/AU2002347034A1/en
Publication of WO2003048471A1 publication Critical patent/WO2003048471A1/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
    • E04B5/326—Floor structures wholly cast in situ with or without form units or reinforcements with hollow filling elements

Definitions

  • the present invention refers to an embedment-type mould, preferably made of recycled plastic material, for manufacturing slabs intended for use in building construction in general.
  • These slab structures generally consist of reinforced-concrete plates, which may be either simple or ribbed, and constitute the load-bearing structure of various elements entering a building construction, such as floors, beams, foundations and the like.
  • a slab structure can be noticed to be formed by two flat plates, i.e. slabs, arranged above each other and spaced from each other through the interposition of concrete ribs extending orthogonal to each other and forming a kind of connection between the two slabs.
  • Such a structure must meet high-strength requirements for adequate resistance to loads, but must at the same time be as light as possible.
  • blocks of plastic material such as for instance polystyrene, which then remains included, i.e. embedded in the concrete casting.
  • the publication EP 0 884 427 discloses a slab structure capable of being manufactured at the building yard with the use of box-like elements (lost moulds) made of recycled plastic materials that are incorporated in a concrete casting.
  • the box-like elements are constituted by a container, or housing, in the shape of a pyramid with the major base thereof that is open upwards and adapted to be closed by means of a planar cover resting on frusto-conical elements rising vertically inside said container. From the closed bottom of the container there extend downwards feet that are capable of getting inserted in the meshes of a metal net which actually constitutes the reinforcement of the slab structure.
  • the publication WO 01 /57335 describes a solution that differs from the above-described ones in that the embedment-type mould element is constituted by a hollow body having its cavity facing downwards, in which said hollow body is arranged between a lower reinforcement layer and an upper reinforcement layer of the slab structure. Along the lower edge and the upper edge thereof, the body is provided with spacers; in addition, there are provided vertical reinforcements that are mounted between blocks of three adjoining hollow bodies.
  • This solution is simpler than the afore described ones.
  • the new mould element must furthermore be capable of being manufactured in the form of a single piece moulded out of recycled plastic material, so as to reduce both manufacturing and installation costs.
  • the new mould must enable slab structures to be manufactured and set up to the required sizes directly at the building yard in a particularly low-cost manner, while reducing both time and labour requirements to a minimum.
  • a mould that is constituted by a hollow body in the shape of a frustum of a pyramid having its vertex directed upwards, whose side walls are provided with grooved pilaster strips, and whose surface is subdivided into sectors that are shaped to include a plurality of relieves.
  • FIG. 1 is an axonometric view of a mould according to the present invention.
  • Figure 2 is a plan view of the mould illustrated in Figure 1 ;
  • Figures 3 to 7 are a front view and a side view, respectively, of the mould illustrated in Figure 1 and 2, along the section lines A-A, B-B. C-C;
  • - Figure 8 is a schematic, axonometric and partially cross-sectional view of a group of assembled moulds
  • - Figure 9 is a schematic, axonometric view of a group of assembled moulds embedded in concrete;
  • FIG. 10 is a cross-sectional view along the line D-D of the group of assembled moulds shown in Figure 9.
  • the embedment-type mould element illustrated in Figures 1 through to 7 is constituted by a single hollow body 11 in a downward-open, frusto- pyramidal shape.
  • the mould 11 is preferably manufactured with the use of recycled plastics.
  • the four vertical corners 12 of the hollow body 11, which substantially form corresponding pilaster strips, are chamfered along a conical or pyramidal surface with the vertex directed downwards, while the side wall 13 are slightly inclined with respect to the vertical plane, so as to enable the moulds to be easily and conveniently piled up into stacks to facilitate transport and handling.
  • a downward-directed foot 14 At the base of each vertical corner 12 there is provided a downward-directed foot 14 in a preferably frusto-conical shape.
  • These feet 14 may be of a different height, according to the type of slab structure that must be obtained, and enable the lower edge of the mould 11 to be spaced from the resting plane of the slab structure, so as to allow for reinforcement rods to be arranged also in the lower part of the slab structure, and to obtain a different thickness of the concrete under the elements of the mould.
  • the pilaster strips 12 allow for improved stackability of the hollow bodies 11 during transport and storage. They may be provided also in the side surfaces of the body 11, in which case they would contribute to an improved rigidity and strength of the same body.
  • the upper surface 15 of the body 11 is shaped so as to feature two channels 16 and 17 extending orthogonal to both each other and the sides of said surface, the elements of possible power or piping installations, such as pipes, cables or the like, being capable of being contained in such channels.
  • the channels 16 and 17 divide the upper surface 15 of the body 11 into four sectors provided with a plurality of relieves 18.
  • These relieves are preferably in the shape of a parallelepiped and are oriented according to directions that are orthogonal to each other and parallel to the diagonals of the surface 15.
  • the relieves 18 of two mutually opposing sectors along a diagonal are arranged parallel to each other and orthogonal to the relieves of the other two sectors that are mutually opposing along the other diagonal of the surface 15.
  • These relieves 18 serve the purpose of strengthening the upper surface of the body 11 in view of enabling the workers to safely tread on it during the phases of setting up the slab structure.
  • they form corresponding spacer elements for spacing the reinforcement rods from the upper surface of the body 11.
  • the surface 15 Under the surface 15 there are provided in a usual manner a number of stiffening ribs (not shown), which further contribute to strengthen said upper surface of the body 11 in order to enhance the resistance thereof to the working loads. Furthermore, the surface 15 is provided with some holes 19 ( Figure 2), the dimensions of which must be suitably small so as to allow air to be vented from the cavity of the body 11 , while preventing concrete to seep therethrough.
  • a further feature of the mould element 11 is represented by the fact that from each side of the lower edge thereof there extends a planar lug 20, which is provided with either a plurality of holes or a pin, respectively, for connection with the corresponding lug of an adjoining mould element.
  • the plurality of holes allows for the distance between adjoining moulds to be defined according to the need, so as to obtain slab structures of different size.
  • Figure 8 illustrates, in a schematic, axonometric view, an example of four moulds 11 assembled on a support boarding 30. The remarkable simplicity of the required assembly operation can be readily appreciated, along with the easy manner in which the moulds can be adapted to the actual size of the slab structure that must be manufactured. All it takes in this connection is in fact to arrange the various hollow bodies 11 close to each other and to connect the respective lugs 20 by inserting the pins of some of them in the selected holes of the other ones.
  • Figure 9 illustrates, again in a schematic, axonometric and partially cross-sectional view, a slab structure obtained with the use of moulds 11 according to the present invention.
  • a metal net 31 which constitutes a lower strengthening reinforcement
  • a second metal net 32 constituting an upper strengthening reinforcement.
  • the concrete casting 33 fills up all spaces between the moulds 11 and forms a lower layer that incorporates the reinforcement net 31 , owing to its being able to flow below the moulds 11 , which remain in a raised position with respect to the boarding 30 due to the presence of the feet 14.
  • the particular design of the surface 15 of the moulds 11, as clearly visible in the Figures and described earlier in this description, is such as to facilitate the upper reinforcement net 32 to be incorporated in the concrete casting 33.
  • the concrete in fact, by seeping through between the relieves 18 of the surface 15, is able to fully envelop the rods of the reinforcement.
  • Figure 10 can be noticed to be a cross-sectional view of the group of assembled moulds shown in Figure 9, so as to show in full evidence the manner in which the concrete 33 is able to distribute and penetrate between the various elements that make up the structure, in particular by fully incorporating the rods of the reinforcement 31 and 32 arranged below and above the mould elements.

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)

Abstract

Cette invention se rapporte à un élément de moule du type à enrobage, en matériau plastique, pour la fabrication de structures de dalles à utiliser dans la construction, comprenant au moins un corps creux (11) ouvert vers le bas comportant des pieds (14) sur son bord inférieur. Chaque corps creux a la forme d'une pyramide tronquée dont le sommet est dirigé vers le haut et comporte des bandes piliers rainurées (12), correspondant en particulier avec ses angles, ainsi que plusieurs reliefs (18) sur sa surface supérieure (15). Ce nouvel élément de moule est beaucoup plus léger que les éléments de moule de la technique antérieure et il peut être produit par moulage en une seule pièce de plastiques recyclés, de façon à réduire les coûts de fabrication et d'installation.
PCT/EP2002/010872 2001-12-05 2002-09-27 Moule du type a enrobage pour la fabrication de structures de dalles de construction WO2003048471A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002347034A AU2002347034A1 (en) 2001-12-05 2002-09-27 Embedment-type mould for manufacturing building slab structures

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPN01A000085 2001-12-05
ITPN20010085 ITPN20010085A1 (it) 2001-12-05 2001-12-05 Cassero a scomparsa per la costruzione di solette da impiegare nell'edilizia.

Publications (1)

Publication Number Publication Date
WO2003048471A1 true WO2003048471A1 (fr) 2003-06-12

Family

ID=11453314

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/010872 WO2003048471A1 (fr) 2001-12-05 2002-09-27 Moule du type a enrobage pour la fabrication de structures de dalles de construction

Country Status (3)

Country Link
AU (1) AU2002347034A1 (fr)
IT (1) ITPN20010085A1 (fr)
WO (1) WO2003048471A1 (fr)

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