EP0955421B1 - Thermal cut-off panel with a continuous insulation, and its production process - Google Patents

Thermal cut-off panel with a continuous insulation, and its production process Download PDF

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Publication number
EP0955421B1
EP0955421B1 EP99201398A EP99201398A EP0955421B1 EP 0955421 B1 EP0955421 B1 EP 0955421B1 EP 99201398 A EP99201398 A EP 99201398A EP 99201398 A EP99201398 A EP 99201398A EP 0955421 B1 EP0955421 B1 EP 0955421B1
Authority
EP
European Patent Office
Prior art keywords
wall
fillets
panel
panel composed
composed according
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.)
Expired - Lifetime
Application number
EP99201398A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0955421A2 (en
EP0955421A3 (en
Inventor
Alberto Dal Lago
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.)
DLC Srl
Original Assignee
DLC Srl
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 DLC Srl filed Critical DLC Srl
Publication of EP0955421A2 publication Critical patent/EP0955421A2/en
Publication of EP0955421A3 publication Critical patent/EP0955421A3/en
Application granted granted Critical
Publication of EP0955421B1 publication Critical patent/EP0955421B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/26Building 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
    • E04C2/284Building 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
    • E04C2/288Building 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
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04Building 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
    • E04C2/049Building 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 completely or partially of insulating material, e.g. cellular concrete or foamed plaster

Definitions

  • This invention refers to a thermal cut-off panel with a continuous insulation, without thermal bridges and with a possible ventilation, as well as to a production process for the same (cf. US 5 491 945 A and FR 2 697 858 A).
  • the construction branch especially that dealing with the construction of prefabricated elements, uses panels of the most diverse shapes and compositions.
  • the general scope of this invention is to solve the mentioned technical problems in an extremely simple, economical and particularly functional manner, for the final purpose of producing a panel capable of offering an optimum degree of insulation without thermal bridges and at the same time of allowing, with an eventual summer ventilation, to eliminate the accumulation of heat inside a building.
  • thermal cut-off panel with a continuous insulation without thermal bridges and the possibility of aeration or ventilation is indicated, in its overall form in the examples shown, by the reference number 10.
  • the panel 10 provides for four longitudinal chambers 11, which are non-continuous but transversally interrupted on their head sections and opposite the lifting hooks.
  • the panel 10 according to the invention, fitted with internal chambers, in this example also includes a supporting inner wall 12 and a supporting outer wall 13, made of concrete and appropriately fitted with armatures, as seen in the simplified drawings offered only for exemplifying purposes and indicated by the number 30 in its various views.
  • each panel 10 is generally fitted on one side with a continuous hollow 14 and on the other side, in a complementary section and form, with a projecting rib 15, which produce the continuity of a wall formed by multiple panels 10.
  • the inner supporting wall 12 is essentially fitted with three thickened longitudinal ribs 16, projecting from the inner wall 12 toward the outer wall. These ribs 16 support, in addition to the armatures 30, some mobile and some fixed suspending elements, which will be better explained in the course of the description.
  • the three ribs 16 also provide a few hollow recesses 17, which are in this example shown as a pair set in a longitudinal direction.
  • the outer supported wall 13 is on the other hand substantially smooth, despite the fact that parts of several of the mentioned mobile and fixed suspending elements are resting on it.
  • the longitudinal ventilation chambers 11 are formed by the particular casting of two different types of insulating material.
  • These chambers 11 are in fact formed by a first insulating material 18, which is arranged in the shape of fillets spaced out between each other, extended longitudinally and appropriately bounded at their extremities by finishing heads 19.
  • These fillets are made of an insulating material of low conductivity, for example of expanded polyurethane.
  • the inner wall 12, which contains the two mentioned hollow recesses 17, also holds further elements of an insulating material 20 of a different type, made for example of expanded polystyrene or other material.
  • These elements 20 are made in the form of lightening and insulating plates, and are usually made of low-density polystyrene.
  • This second type of insulating material usually serves the function of lightening the weight, and is of low cost.
  • the arrangement of the two insulating materials, one of which has about half the transmittance of the other, allows the unit to provide a uniform insulation.
  • the mobile connecting elements 21 comprise in a simplified form a rope 23 with a frayed open end 24 buried in the material of the outer wall 13 and a second extremity 29 fixed to a bushing 25 firmly attached and buried in the inner supporting wall 12 in the rib 16.
  • the bushing 25 ends in this application next to the fillets 18 of the first insulating material, so that the out-coming rope 23 leaves it a possibility to slide between the two walls 12, 13 of the panel. This possibility of sliding between the supporting and the supported layer without inducing deformations is favored by the presence of the two fillets 18 made of an insulating material of reduced transmittance but of equal thickness.
  • the fixed connecting elements 22 are installed at other points of the longitudinal ribs 16 of the inner walls 12 and portions of the outer wall 13, facing each other.
  • These connecting elements 22 provide pins 26 and spring elements 27 which may eventually allow only a slight shifting along the axis of the pins, in a direction perpendicular to the walls 12 and 13 of the panel 10.
  • these insulating materials are generally sized in a thickness directly proportional to their transmission.
  • an armature grid 41 fitted with a fastening section for supports (42) is set into an appropriately profiled and shaped caisson 40.
  • the supported outer wall 13 is then cast so as to fill out the armature grid 41.
  • the plates 20 are then laid down above the fillets 18, so as to achieve a complete separation between the inner and outer walls.
  • the plates 20, which are lightweight and insulating, are in fact resting on the fillets 18 and produce a complete insulation inside the thermal cut-off panel with a continuous insulation.
  • Figure 12 shows the way the positioning of a second armature grid 45 is performed.
  • This prefabrication presupposes that the various layers of concrete are cast in a horizontal fashion, so as to produce the chambers and other holes in an economical manner, thus saving on insulating material.
  • the insulating material constituting the fillets arranges itself in an almost peripheral fashion, as also seen in Figure 6, so that a complete insulation is achieved by a panel constructed in this manner.
  • the figures 14-17 show a few views of a panel according to the invention, in which no ventilation is provided.
  • some closed chambers 111 are formed, which lighten the panel and render it more insulated, while increasing the thermal cut-off. Any thermal bridges are in fact eliminated.
  • This kind of design can in any case achieve an aeration, by applying passing holes 32 to the extremities in the headers 19. This prevents the formation of condensation.
  • the shaping process is rather similar to that previously described for a ventilated panel with open longitudinal chambers.
  • the fillets are positioned easily and precisely against the flanks of the caisson, whatever its length.
  • the fillets advantageously remain at the same width, regardless of the change in panel width.
  • any thermal bridges have in fact been eliminated, achieving a high degree of insulation.
  • the structure according to the invention eliminates any potential fissuring and deformation.
  • the arrangement of the two insulating materials used to create the longitudinal chambers also generates an optimal ventilation of the panel.
  • the aeration or ventilation eliminate the internal condensation problem, which is particularly penalizing during the winter, and prevents heating the inner space formed by the panels of the invention during the summer, thus preventing any accumulation of radiation heat, which would end up raising the temperature of the internal environment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
  • Thermal Insulation (AREA)
EP99201398A 1998-05-06 1999-05-06 Thermal cut-off panel with a continuous insulation, and its production process Expired - Lifetime EP0955421B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI980978 1998-05-06
IT1998MI000978A IT1303061B1 (it) 1998-05-06 1998-05-06 Pannello a taglio termico con isolamento continuo e suo procedimentodi produzione

Publications (3)

Publication Number Publication Date
EP0955421A2 EP0955421A2 (en) 1999-11-10
EP0955421A3 EP0955421A3 (en) 2001-08-08
EP0955421B1 true EP0955421B1 (en) 2004-01-02

Family

ID=11379961

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99201398A Expired - Lifetime EP0955421B1 (en) 1998-05-06 1999-05-06 Thermal cut-off panel with a continuous insulation, and its production process

Country Status (5)

Country Link
EP (1) EP0955421B1 (it)
AT (1) ATE257201T1 (it)
DE (1) DE69913881T2 (it)
ES (1) ES2213974T3 (it)
IT (1) IT1303061B1 (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1316775B1 (it) * 2000-02-18 2003-05-12 Sergio Zambelli Pannello prefabbricato in calcestruzzo per l'edilizia industrializzata ad elevato isolamento termico e/o acustico
FR3008115B1 (fr) * 2013-07-05 2016-12-09 Camille Jose Pothin Procede de mur prefabrique avec isolation integre

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2697858B1 (fr) * 1992-11-10 1995-01-27 Alain Guenee Procédé de fabrication d'un panneau de construction de type sandwich à trois couches et panneau obtenu par la mise en Óoeuvre de ce procédé.
US5491945A (en) * 1994-03-16 1996-02-20 Meirick; Herbert J. Thermally insulated columnar structure formed with isolated front and back faces

Also Published As

Publication number Publication date
ATE257201T1 (de) 2004-01-15
IT1303061B1 (it) 2000-10-23
EP0955421A2 (en) 1999-11-10
ITMI980978A1 (it) 1999-11-06
DE69913881T2 (de) 2004-12-30
DE69913881D1 (de) 2004-02-05
ES2213974T3 (es) 2004-09-01
EP0955421A3 (en) 2001-08-08

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