EP1207241A1 - Wandelement - Google Patents

Wandelement Download PDF

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Publication number
EP1207241A1
EP1207241A1 EP01402904A EP01402904A EP1207241A1 EP 1207241 A1 EP1207241 A1 EP 1207241A1 EP 01402904 A EP01402904 A EP 01402904A EP 01402904 A EP01402904 A EP 01402904A EP 1207241 A1 EP1207241 A1 EP 1207241A1
Authority
EP
European Patent Office
Prior art keywords
element according
cover element
insulating layer
box
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.)
Granted
Application number
EP01402904A
Other languages
English (en)
French (fr)
Other versions
EP1207241B1 (de
Inventor
Yves Brugeaud
Ramez Kamel
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.)
Brugeaud Yves
Conseil Services Investissements
Original Assignee
Les Composants Precontraints
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 Les Composants Precontraints filed Critical Les Composants Precontraints
Publication of EP1207241A1 publication Critical patent/EP1207241A1/de
Application granted granted Critical
Publication of EP1207241B1 publication Critical patent/EP1207241B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E04C2/02—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

Definitions

  • the present invention relates to an element of wall and more particularly a covering element usable in particular in the roofs of buildings not residential buildings such as industrial buildings or collective buildings.
  • the roof of such buildings includes usually a metal, concrete or wooden frame, on which cover elements are fixed.
  • cover elements formed of ribbed metal plates fixed on purlins extending between beams of the frame. These plates are covered with insulation and layers bituminous waterproofing.
  • cover elements require a complex frame and implement multiple components which are assembled on the site. The realization of such roofs is therefore relatively long and expensive and also proves to be dangerous considering the number of operations it is necessary to perform in height.
  • the layers bituminous require maintenance and relatively frequent maintenance and have a duration of life that does not exceed fifteen years. Through elsewhere, given their composition, the layers bituminous tends to facilitate the spread of fires.
  • the roofs of this type are usually covered with a layer of several centimeters of gravel limiting the flame spread to the top of the roof.
  • this complicates the realization of the roof and weighs it down significantly.
  • cover elements of cover made of corrugated metal sheets framing an insulating layer.
  • cover elements are relatively long, so that it is possible to mount these directly between the structural beams without resorting to breakdowns.
  • these cover elements generally have significant thicknesses, of the order of two meters for longer spans. The use of such cover elements therefore leads to either notable increase in the external height of the building, a significant decrease in height interior of it.
  • a cover element comprising a frame box in concrete having at least one longitudinal part prestressed, and an insulating layer extending in the frame box.
  • the cover element can be used for large spans, around 12 to 20 meters, while having a relatively thick weak, of the order of 40 centimeters.
  • the mass of such elements is also relatively small.
  • the elements hedges thus constituted also have a duration of significant life equivalent to that of the structure in concrete of the building they equip. Otherwise, the cover element can easily be machined to allow its adjustment to a support structure such that a frame and / or roofing elements surrounding.
  • the frame box includes two plates that extend on either side of the insulating layer and are joined by side walls, the plates having surfaces internal ribs and / or the frame box being internally partitioned.
  • This structure has mechanical strength particularly important.
  • the concrete of the framework box has a cement matrix and reinforcing fillers such as metallic fibers, fibers synthetic or organic fibers.
  • the insulating layer is made of concrete light advantageously comprising a matrix of cement and polystyrene beads.
  • an insulating layer having a density of the order of 200 to 400 kg / m 3 and a compressive strength at 28 days of the order of 1 to 2 megapascals.
  • the insulating layer is easily machinable, which facilitates the manufacture of the wall element, in particular when the framework box is internally ribbed and the insulating layer is used as an insert in the formwork in which the concrete forming the box is poured.
  • this type of material is substantially non-combustible or non-flammable.
  • the wall element which will now be described is intended to be fixed to a frame to form a cover element.
  • This wall element can also be used in combination with a structure support to form cladding.
  • the cover element comprises a framework box generally designated as 1 and an insulating layer 2 extending inside the frame box 1.
  • the frame box 1 comprises two plates 3, 4 which extend on either side of the insulating layer 2 and are joined by side walls 5, 6.
  • the ends 1 ′ of the box are closed by internal transverse partitions 14 which insulate the interior of the framework box 1 and the insulating layer 2 from outside and in particular fire in case fire or water.
  • the transverse partitions internal 14 also mechanically reinforce the box frame 1.
  • the frame box 1 is made of a material comprising a cement matrix in which are dispersed metallic fibers, synthetic fibers or organic fibers.
  • This material is made from aggregates having a small particle size, preferably less than 0.3 mm, and water.
  • the composition of the material is determined so that the material has good resistance to the freeze-thaw cycle (no deterioration of its properties after 300 cycles), a low capillary porosity advantageously less than 10 ⁇ m (or less than 1%) , a low total porosity advantageously between 2% and 6% and a shrinkage after curing less than 10 -5 .
  • the combination of these characteristics gives the material a longer service life than conventional concrete and intrinsic impermeability in the absence of cracks.
  • the concrete constituting the framework box and more particularly at the level of the plate intended for be oriented towards the interior of the building, can include plastic fibers so that in case temperature increase, fiber melting plastics allow at least partial release of internal constraints.
  • the external surface of plates 3, 4 and more particularly one that is intended to be oriented towards the interior of the building can be covered in any or part of a layer of intumescent paint.
  • the internal surface of plates 3, 4 and more particularly that of the plate 4 intended to be find inside the building is preferably covered in whole or in part with a layer of plaster in particular, in the event of a fire, to slow down the diffusion heat towards the inside of the case.
  • the insulating layer 2 is preferably made in a light insulating concrete which is advantageously composed of a cement matrix in which are dispersed polystyrene beads.
  • a light insulating concrete which is advantageously composed of a cement matrix in which are dispersed polystyrene beads.
  • the insulating layer 2 can be made from foam blocks of polystyrene or polyurethane foam or even from any other low insulating material density.
  • the plate referenced 4 is that which is intended for be on the inside of the building.
  • the plates 3, 4 have smooth internal surfaces.
  • longitudinal ribs 7 and transverse ribs 8 extend over the surfaces internal plates 3, 4. These ribs exert a frame stiffening function 1.
  • the frame box 1 includes a part longitudinal prestressing extending here in the part side walls 5, 6 adjacent to the plate 4, that is to say in the part of these extending the most often below the zero constraint line.
  • the prestressing is ensured by means of adhesive cables 9 embedded in concrete to exert a compressive force on this part of each side wall 5, 6.
  • the insulating layer 2 not shown here, has grooves that receive the ribs longitudinal and transverse 7, 8.
  • Prestressing elements 9 extend here longitudinally in the parts of the side walls 5, 6 and internal partitions 10, 11 adjacent to the plate 4.
  • the ends 1 'of the box 1 include several internal transverse walls 14 parallel to each other closing off the ends 1 '. This allows, when cutting the element of cover to decrease its length, keep at minus a transverse partition 14 after cutting for protect and insulate the interior of the frame box 1 and the insulating layer 2 from the outside and for example flames in case of fire or water.
  • the walls internal cross-sections also contribute to mechanical reinforcement of the framework box 1.
  • the framework box is partitioned internally by partitions 10, 11, 12, 13 extending longitudinally between plates 3 and 4 parallel at the side walls 5, 6.
  • Prestressing elements 9 extend in the parts of the side walls 5, 6 and of the partitions internal 10, 11, 12, 13 adjacent to the plate 4.
  • the wall element can be easily machined (e.g. cut) to make pass vertically through ducts or conduits or allow adjustments to other items.
  • the manufacture of the wall element in accordance with the invention begins with the production of the layer insulating 2 by pouring concrete into a formwork whose dimensions correspond to those of the interior space of the frame box 1.
  • grooves corresponding are machined in insulating layer 2 after hardening thereof.
  • grooves are machined in the insulating layer 2.
  • the layer insulator 2 is deposited on the plate 4 then the assembly is covered with concrete to form the side walls 5, 6 and plate 3.
  • the insulating layer 2 has grooves, it is necessary that the concrete enters these grooves so that they form a rib molding imprint. It is the same when the insulating layer has grooves.
  • the light insulating concrete used for the layer insulating material is considered non-combustible or not flammable and its thermal insulation properties slow the diffusion of heat thus limiting temperature increase at the plate top and also side walls and internal partitions.
  • this type of wall element it is possible to have a fire stability of the order of 60 minutes minimum. The fire behavior of such cover element is therefore particularly interesting.
  • This embodiment provides good adhesion between the concrete forming the framework box and the one forming the insulating layer. In case of cracking of the wall element, this adhesion tends to maintain the parts cracked with the rest of the element of wall.
  • the deterioration of the plate 4 does not noticeably the appearance of form instability at level of the rest of the wall element.
  • the configuration of the ribs internal and / or internal partitions of the box framework and arrangement and / or number of elements prestressing can be modified in particular by function of the efforts that the element of wall and the direction of application of these, mechanical properties of the insulating layer, mechanical properties of the concrete used ...
EP01402904A 2000-11-17 2001-11-13 Wandelement Expired - Lifetime EP1207241B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0014852A FR2816972B1 (fr) 2000-11-17 2000-11-17 Element de paroi
FR0014852 2000-11-17

Publications (2)

Publication Number Publication Date
EP1207241A1 true EP1207241A1 (de) 2002-05-22
EP1207241B1 EP1207241B1 (de) 2007-03-07

Family

ID=8856587

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01402904A Expired - Lifetime EP1207241B1 (de) 2000-11-17 2001-11-13 Wandelement

Country Status (5)

Country Link
EP (1) EP1207241B1 (de)
AT (1) ATE356260T1 (de)
DE (1) DE60127075T2 (de)
ES (1) ES2282217T3 (de)
FR (1) FR2816972B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202018105997U1 (de) * 2018-10-19 2020-01-21 Rehau Ag + Co Leichtbau-Wandmodul

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2166574A5 (de) * 1971-12-30 1973-08-17 Zucco Noel
WO1980000232A1 (en) * 1978-07-17 1980-02-21 Ametex Ltd Method for manufacturing insulating construction elements
WO1999051829A1 (en) * 1998-04-07 1999-10-14 Phillip Boot Holdings Pty. Ltd. Pre-cast concrete walling system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4232494A (en) * 1979-04-27 1980-11-11 Tamil D. Bauch Composite construction panel
DE4112785A1 (de) * 1991-04-19 1992-10-22 Hubert Hasenfratz Verbundplatte
WO1997019031A1 (de) * 1995-11-17 1997-05-29 Alpha Brevet S.A. Dämmstoff zur schall- und/oder wärmedämmung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2166574A5 (de) * 1971-12-30 1973-08-17 Zucco Noel
WO1980000232A1 (en) * 1978-07-17 1980-02-21 Ametex Ltd Method for manufacturing insulating construction elements
WO1999051829A1 (en) * 1998-04-07 1999-10-14 Phillip Boot Holdings Pty. Ltd. Pre-cast concrete walling system

Also Published As

Publication number Publication date
FR2816972B1 (fr) 2003-07-25
FR2816972A1 (fr) 2002-05-24
ATE356260T1 (de) 2007-03-15
ES2282217T3 (es) 2007-10-16
EP1207241B1 (de) 2007-03-07
DE60127075T2 (de) 2007-11-15
DE60127075D1 (de) 2007-04-19

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