EP2678491B1 - Poutre de toit et élément de type plaque de toit préfabriqué comportant des poutres de toit - Google Patents

Poutre de toit et élément de type plaque de toit préfabriqué comportant des poutres de toit Download PDF

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Publication number
EP2678491B1
EP2678491B1 EP20120714553 EP12714553A EP2678491B1 EP 2678491 B1 EP2678491 B1 EP 2678491B1 EP 20120714553 EP20120714553 EP 20120714553 EP 12714553 A EP12714553 A EP 12714553A EP 2678491 B1 EP2678491 B1 EP 2678491B1
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EP
European Patent Office
Prior art keywords
roof
plates
sides
metal
roof girder
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EP20120714553
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German (de)
English (en)
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EP2678491A1 (fr
Inventor
Peehr Mathias Ørnfeldt SVENSSON
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Individual
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B7/00—Roofs; Roof construction with regard to insulation
    • E04B7/20—Roofs consisting of self-supporting slabs, e.g. able to be loaded
    • E04B7/22—Roofs consisting of self-supporting slabs, e.g. able to be loaded the slabs having insulating properties, e.g. laminated with layers of insulating material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/08—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders
    • E04C3/09—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders at least partly of bent or otherwise deformed strip- or sheet-like material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/11—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with non-parallel upper and lower edges, e.g. roof trusses
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0408—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section
    • E04C2003/0413—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section being built up from several parts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0426—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section
    • E04C2003/043—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section the hollow cross-section comprising at least one enclosed cavity
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
    • E04C2003/0465—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section square- or rectangular-shaped
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0486—Truss like structures composed of separate truss elements
    • E04C2003/0491—Truss like structures composed of separate truss elements the truss elements being located in one single surface or in several parallel surfaces

Definitions

  • the present invention concerns a roof girder of the kind indicated in the introduction of claim 1.
  • the invention also concerns a prefabricated roof plate element with one or more roof girders according to the invention.
  • Prefabricated roof girders and roof plate elements, respectively, of this kind can be made of 100% inorganic materials which is very significant to durability and maintenance. Besides, it is of great significance that the roof plate elements in question can have a free span of up to 22 metres, i.e. one single roof plate element may cover about 80 m 2 , which of course is very essential with regard to reducing the construction time.
  • EP 2 145 056 A1 ( WO2008/125109A1 ) describes a prefabricated roof plate element, including one or more longitudinal box-shaped roof girders that each consists of two predominantly U-shaped metal sections which at mutually facing, open sides are interconnected along narrow outwards bent lateral edges, the roof girders being connected at upper and lower narrow sides corrugated in longitudinal direction with metal plates corrugated in transverse direction and having approximately the same width as the roof plate element, the roof girders/support girders and roof plate element, respectively, designed with reduced height at an end part intended to form eaves.
  • WO 02/092937 A1 discloses a method of handling and joining at least two sectional steel elements together to form a load-bearing beam element, preferably for interaction with a separately-formed post footing, a beam element made from at least two sectional elements, and a beam element/post footing combination.
  • the method being characterised in that detached angle section elements are joined together to form a hollow sectional beam, and that at least one sleeve plate is externally attached around the hollow sectional beam thus obtained and is locked to this forming stop for receiving preferably board-shaped elements.
  • the roof girder according to the invention is peculiar in that the metal sections at the lower and lower open sides, respectively, are interconnected by means of a plurality of connecting plates which are fastened to inner, substantially vertical sides of the metal sections in such a way that there is a spacing between the narrow outwardly bent edges of respective lower and upper metal sections; that the cavity is filled with insulation material; and that the plurality of connection plates are provided at different positions along the rood girder.
  • the roof girder invention in a simple way is provided the required space for additional layers of insulating material in order to fulfil the raised requirements to insulation, i.e. meet the current standards of the building regulation to reduced ⁇ - and U-values (coefficient of thermal conductivity and thermal conductivity, respectively), which particularly is due the fact that the thermal bridge known from prior art roof girders is effectively counteracted in that the metal sections are not directly connected with each other.
  • the roof girder according to the invention may at the same time be provided a significantly increased span of up to more than 24 metres in that the spacing between the narrow outwardly bent edges amount to 50-500 mm, preferably 100-200 mm.
  • the spacing between the narrow outwardly bent edges amount to 50-500 mm, preferably 100-200 mm.
  • a roof girder according to the invention may advantageously be designed such that a lower of the U-shaped metal sections is shorter than an upper of the U-shaped metal sections, and that the upper U-shaped section is closed downwards at a projecting end part intended to form eaves in a roof plate element by means of a preferably U-shaped metal section, which is disposed internally of the upper U-shaped metal section and fastened to the latter.
  • the roof girder according to the invention may suitably be designed such that the connecting plates are constituted by prefabricated units, the width of which adapted to the internal width of the U-shaped metal sections, and the height and length of which varying in dependence on the height of the roof girder and the actual longitudinal disposition of the units in the roof girder.
  • the roof girder according to the invention can be designed such that the prefabricated units are constituted by box-shaped units having a core of mineral wool or insulating foam, where the core is connected at opposing outer sides by metal plates with low thermal conductivity (U-value), the metal plates preferably externally being covered with an insulating layer of e.g. so-called integral foam ( Figs. 7 and 8 ).
  • U-value thermal conductivity
  • the roof girder according to the invention can be designed such that the prefabricated units are constituted by box-shaped units with opposing outer sides and transverse sides consisting of fibre-reinforced construction plates or composite plates, and which have a core of mineral wool or insulating foam ( Figs. 9 and 10 ).
  • the roof girder according to the invention can be designed such that the prefabricated units are constituted by box-shaped units with opposing outer sides and transverse sides consisting of fibre-reinforced construction plates or composite plates, and which have a core of mineral wool or insulating foam, the outer sides further provided with upper and lower metal plates disposed with vertical spacing ( Figs. 11 and 12 ).
  • the roof girder according to the invention can be designed such that the connecting plates are constituted by connecting plates of metal or composite plates with low thermal conductivity (U-value) adapted to be connected with opposing vertical inner sides of the upper and lower U-shaped metal sections, and in the form of a transverse connecting partitioning integrated with the connecting plates.
  • U-value thermal conductivity
  • the invention additionally concerns a roof plate element of the kind indicated in the preamble of claim 9, the roof plate element being peculiar in that it includes an upper connection between the longitudinal roof girders, the connection consisting of a construction plate of inorganic and non-flammable material, a trapezoidal steel sheet or a sandwich panel, a layer of compression-resistant insulation, an upper roof membrane and an underside lining of laths and insulating plates.
  • the underlining consists of trapezoidal sheets of steel or light-alloy metal, the sheets optionally including suitable insets of insulating material.
  • the underlining may alternatively consist of ceiling boards of non-flammable, inorganic construction plates.
  • the roof girders and the roof plate elements can be made with heights adapted to span and loads. According to the invention, it is possible to produce roof girders and roof plate elements with built-in slope to one or two sides ( Figs. 23 and 24 ), implying a very great cost-saving as the roof slope is not to be built up on the construction site.
  • roof girders and roof plate elements according to the invention all fulfil current standards for environmental sustainability and CO 2 -saving, which is particularly due to the much prolonged service life because of the use of inorganic materials.
  • the use of steel sections as load-bearing elements rather than e.g. laminated wood also gives a much increased service lift in addition to increased span.
  • girders and elements according to the invention can advantageously be used as façade covering and as storey partitionings with a span up to even 15 metres.
  • Figs. 1 and 2 show sectional views of an embodiment of a roof plate element 2 according to the invention where side eaves 6 are established at a side of the roof plate element 2, as an outer protruding part 4 of the roof plate element 2 has reduced thickness which is produced by means of insert girders 5 supporting the upper extended part of the roofing, and which are inserted at the side of the roof plate element 2 and disposed in an interspace between upper reversed U-shaped metal sections 8 and lower U-shaped metal sections 10.
  • the upper and lower metal sections 8, 10 are not interconnected at the mutually facing narrow outwardly bent edges 14, 16.
  • the narrow outwardly bent edges 14, 16 have a vertical spacing A
  • roof girders 12 with increased height and thereby increased bending stiffness are thereby provided.
  • the spacing A can vary between 50 and 500 mm, preferably between 100 and 200 mm.
  • interspace 7 established between the metal sections 8, 10 provide for passing e.g. electric installations through tubes 9 provided in the interspace 7 ( Fig. 2 ).
  • the mechanical assembly between vertical inner sides of upper and lower metal sections 8, 10 takes place by means of the connecting plates shown in Figs. 7 - 12 , 14 and 16 -19 , where each will be explained separately in detail in the following.
  • the required space for additional layers of insulating material is provided in order to fulfil the raised requirements to insulation, i.e. meet the current standards of the building regulation to reduced ⁇ - and U-values (coefficient of thermal conductivity and thermal conductivity, respectively).
  • Figs. 1 - 6 show prefabricated roof plate elements 2 including one or more longitudinal roof girders 12 which are placed along opposing sides and at the centre between the opposing sides of the roof plate element 2 which includes an upper mechanical connection 18 between the longitudinal roof girders 12, the mechanical connection 18 consisting of a construction plate of inorganic and non-flammable material, a trapezoidal steel sheet or a sandwich panel, a layer of compression-resistant insulation 20, an upper roof membrane 22 and an underside lining 24 of laths 26 and insulating plates 30.
  • the underlining 24 may consist of trapezoidal sheets 32 of steel or light-alloy metal and possibly insulation integrated in the trapezoidal sheets.
  • roof girders 12 and roof plate elements 2 are filled with suitable insulation which, as most clearly shown in Figs. 1, 2, 3 and 5 , provide that the longitudinal spacing A between the metal sections 8, 10 can get additional insulation, the thickness of which as spacing A can vary between 50 and 200 mm.
  • the situation will be as follows by a roof girder 12 and a roof plate element 2, respectively, with a span of 24 metres.
  • Connecting plates will have a length with space for (10-20) x 2 screws 36.
  • connecting plates generally can be connected with the vertical inner sides of the metal profiles 8, 10 by means of gluing whereby the thermal conductivity can be further reduced.
  • Fig. 7 shows a box-shaped connecting plate 40 having a core 42 of mineral wool or insulating foam, where the core 42 is connected at opposing outer sides by metal plates 44 with low thermal conductivity (U-value), the metal plates 44 preferably externally covered with an insulating layer 46 of e.g. so-called integral foam.
  • Fig 8 is shows how connecting plate 40 has been mounted in a lower metal section 10 by means of eight screws 36 which are screwed from the outer side of the metal section 10 and through the latter and the insulating layer 46 and fastened in the metal plate 44.
  • Fig. 9 shows a second embodiment of a box-shaped connecting plate 48 with opposing outer sides and transverse sides consisting of fibre-reinforced construction plates 50, and which has a core 52 of mineral wool or insulating foam.
  • Fig 10 is shows how connecting plate 48 has been mounted in a lower metal section 10 by means of eight screws 36 which are screwed from the outer side of the metal section 10 and through the metal section 10 and fastened in the construction plate 50.
  • Fig. 11 shows a third embodiment of a box-shaped connecting plate 54 with opposing outer sides and transverse sides consisting of fibre-reinforced construction plate 50 and having a core 52 of mineral wool or insulating foam, the outer sides further provided with upper and lower metal plates 56, 58 which are disposed with vertical spacing B which in practice will correspond to the spacing A between the narrow outwardly bent edges 14, 16 of the metal sections 8, 10.
  • Fig 12 is shows how connecting plate 54 has been mounted in a lower metal section 10 by means of eight screws 36 which are screwed from the outer side of the metal section 10 and through the metal section 10 and fastened in the construction plate 50.
  • Fig. 13 shows a roof girder known per se where outwardly bent edges 14, 16 of the metal sections 8, 10 do not have any vertical spacing and where the previously used mechanical connection by clinching (press joint) is replaced by a connecting plate 60 fastened to each of the metal sections 8, 10 by means of 8 x 2 screws 36. Possibly, with regard to reducing the effect of a thermal bridge, non-woven material is placed between the inner sides of the metal sections 8, 10 and the outer side of the connecting plate 60.
  • Fig. 14 shows a roof girder 12 according to the invention where the mechanical connection between the metal sections 8, 10 that are disposed with spacing A is effected by means of a connecting plate 60 consisting of metal with modest heat conductivity, e.g. stainless steel. The latter is fastened to each metal section 8, 10 by means of 8 x 2 screws 36.
  • a connecting plate 60 consisting of metal with modest heat conductivity, e.g. stainless steel.
  • the latter is fastened to each metal section 8, 10 by means of 8 x 2 screws 36.
  • non-woven material is placed between the inner sides of the metal sections 8, 10 and the outer side of the connecting plate 60.
  • Fig. 15 shows a roof plate element 2 with eaves 7 supported on a support in the form of a strong steel beam 11.
  • the eaves 7 is established in that the roof girders 12 consist of an upper metal section 8 which has greater length than the lower metal section 10.
  • Fig. 16 shows a roof girder 12 according to the invention with eaves 7, i.e. the upper metal section 8 has greater length than the lower metal profile 10, where the mechanical connection between the metal sections 8, 10 disposed with spacing A is effected by means of a connecting plate 61 consisting of metal with modest heat conductivity, e.g. stainless steel. The latter is fastened to each metal section 8, 10 by means of 8 x 2 screws 36.
  • non-woven material is placed between the inner sides of the metal sections 8, 10 and the outer side of the connecting plate 60.
  • Fig. 17 shows yet an alternative embodiment of a connecting plate 62 which is very similar to that of Figs. 11 and 12 , as the opposing side plates 64 have greater height than the transverse plates 66, which is also shown in Fig. 18 showing a cross-section through a roof girder 12 where the side plates 64 are bearing directly against opposite short sides of the upper metal section 8 and the lower metal profile 10.
  • Fig. 19 shows a further embodiment for a connecting plate 68 which in a simple way can be made by shortening of a longer pre-bent metal section.
  • Figs. 20-22 show a completely alternative way of reducing the heat conductivity in a roof girder.
  • Fig. 20 shows a cross-section through an upper part of a roof girder 70 where the mutually facing outwardly bent edges of an upper and lower metal section are directly connected in a known way, e.g. by clinching.
  • the metal sections are made from coil sheets that have prefabricated lateral slits 72 disposed in relation to each other in such a pattern that a kind of labyrinth is formed with the object of increasing the heat conduction path through the side of the metal section, as indicated in Fig. 22 with broken line 74.
  • Fig. 23 shows a roof construction 76 with unilateral slope which is "incorporated" in the applied roof girders 78, i.e. the spacing increases upwards between upper inclined metal sections 8 and lower horizontal metal sections 10. At the bottom is used a standard connecting plate 34 whereas the other connecting plates are adapted to the increasing spacing between the metal sections 8, 10.
  • Fig. 24 shows a roof construction 80 with slope at two sides which is also "incorporated" in the applied roof girders 82. At opposing sides are used standard connecting plates 34 whereas the other connecting plates are adapted to the varying spacing between the upper inclined metal sections 8 and the lower horizontal metal sections 10.
  • Figs. 25-30 shows an alternative embodiment of a roof plate element 82 where three roof girders 84 are designed as lattice girders ( Fig. 26 ) constructed from two U-shaped metal sections 8, 10 where between is mounted end fish plate connections 86 ( Fig. 28 ) and plate-shaped struts 88 ( Figs. 29 and 30 ).
  • Fig. 31 shows a block 90 of insulating material intended to be mounted directly between two U-shaped steel sections 8, 10 as the insulating block 90 previously has been provided with cross-braces 92 of steel sheeting which is glued to opposite sides of the insulation block 90, and which subsequently is connected with side edge parts of the U-shaped metal profiles 8, 10 by means of screws.
  • Fig. 32 shows a corresponding block 90 of insulation material where cross-braces 94 consist of steel sheeting, where opposite side edges 96 are bent in a right angle and where the cross-braces 94 are fastened to opposite sides of the block 90 by fitting the side edges 96 into the block and possibly by supplementary gluing.
  • Fig. 33 shows yet a block 90 of insulation material where intersecting cross-braces 98 are fastened to opposing sides of the block 90 by gluing before this as mentioned above is fastened between U-shaped metal sections 8, 10.
  • Fig. 34 shows an edge joint between two roof plate elements 100 where between lower adjacent side edges 102 of respective roof plate elements 100 there is established a good pressure-tight connection between overlapping side edges 104 of vapour barrier 106.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)

Claims (10)

  1. Une poutre de toit (12) constituée de deux sections métalliques essentiellement en forme de U (8, 10), dont les faces ouvertes inférieure et supérieure sont tournées l'une vers l'autre, formant une cavité entre les deux, et qui est conçue avec des bords étroits cintrés vers l'extérieur (14, 16), la poutre de toit (12) étant ondulée au niveau des côtés étroits inférieurs et supérieurs opposés dans la direction longitudinale, caractérisée en ce que les sections métalliques (8, 10) au niveau des côtés ouverts inférieurs et supérieurs, respectivement, sont reliées l'un à l'autre au moyen d'une pluralité de plaques de connexion (34), qui sont fixées à des côtés intérieurs sensiblement verticaux des sections métalliques (8, 10) de telle sorte qu'il y a un espacement (A) entre les bords étroits cintrés vers l'extérieur (14, 16) des sections métalliques inférieures et supérieures respectives (8, 10); que la cavité est remplie d'un matériau isolant; et en ce que la pluralité de plaques de connexion (34) sont prévues au niveau de différentes positions le long de la poutre de toit.
  2. Poutre de toit (12) selon la revendication 1, caractérisée en ce que l'espacement (A) entre les bords étroits cintrés vers l'extérieur (14, 16) s'élève à 50-500 mm, de préférence de 100-200 mm.
  3. Poutre de toit (12) selon la revendication 1, caractérisée en ce qu'une partie inférieure des sections métalliques en forme de U (10) est plus courte qu'une partie supérieure des sections métalliques en forme de U (8), et en ce que la section supérieure en forme de U (8) est fermée vers le bas au niveau d'une partie d'extrémité en saillie destinée à former des avant-toits (7) dans un élément de plaque de toit (2) par l'intermédiaire d'un profilé de préférence métallique en forme de U, qui est disposé à l'intérieur de la section métallique supérieure en forme de U (8) et fixée à celle-ci.
  4. Poutre de toit (12) selon la revendication 1, caractérisée en ce que les plaques de connexion sont constituées par des unités préfabriquées, dont la largeur adaptée à la largeur intérieure des sections métalliques en forme de U, dont la hauteur et longueur variant en fonction de la hauteur de la poutre de toit et de la disposition longitudinale réelle des unités dans la poutre de toit.
  5. Poutre de toit selon la revendication 4, caractérisée en ce que les éléments préfabriqués sont constitués par des unités en forme de boîte ayant un noyau de laine minérale ou de mousse isolante, où les noyaux sont connectés au niveau de faces externes opposées par des plaques métalliques à faible conductivité thermique (valeur U), les plaques métalliques de préférence recouverte à l'extérieur d'une couche isolante par exemple de mousse dite intégrale (Figs. 7 and 8).
  6. Poutre de toit selon la revendication 4, caractérisée en ce que les éléments préfabriqués sont constitués par des unités en forme de boîte avec des faces extérieures et des faces transversales opposées et constituées de plaques de construction renforcées par des fibres ou plaques composites, et qui ont un noyau de laine minérale ou de mousse isolante (Figs. 9 and 10).
  7. Poutre de toit selon la revendication 4, caractérisée en ce que les éléments préfabriqués sont constitués par des unités en forme de boîte avec des faces extérieures et des faces transversales opposées et constituées de plaques de construction renforcées par des fibres ou de plaques composites, et qui ont un noyau de laine minérale ou de mousse isolante, les côtés extérieurs en outre prévus avec des plaques métalliques supérieure et inférieure, disposées avec un espacement vertical (Figs. 11 and 12).
  8. Poutre de toit selon la revendication 1, caractérisée en ce que les plaques de connexion sont constituées par des plaques de connexion métalliques ou composites à faible conductivité thermique (valeur U) adaptées pour être connectées avec les faces intérieures verticales opposées des sections métalliques supérieure et inférieure en forme de U, et en ce qu'il est prévu un partitionnement de raccordement transversal intégré avec les plaques de connexion.
  9. Élément de plaque de toit préfabriqué, comprenant une ou plusieurs poutres de toit longitudinales selon la revendication 1, les poutres de toit disposées le long de côtés opposés et entre les côtés opposés de l'élément de toit, caractérisé en ce qu'il comprend un raccord supérieur entre les poutres de toit longitudinales, le raccord constitué d'une plaque de construction de matériau non-inflammable et inorganique, d'une feuille d'acier trapézoïdal ou d'un panneau sandwich, d'une couche d'isolation résistant à la compression, d'une membrane de toit supérieure et d'une garniture inférieure de lattes et plaque de matériau isolant.
  10. Élément de plaque de toit préfabriqué selon la revendication 9, caractérisé en ce que la garniture inférieure est constituée de tôles d'acier trapézoïdaux, de métal léger, ou de plaques de construction inorganiques et non-inflammables.
EP20120714553 2011-02-25 2012-02-22 Poutre de toit et élément de type plaque de toit préfabriqué comportant des poutres de toit Active EP2678491B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12714553T PL2678491T3 (pl) 2011-02-25 2012-02-22 Dźwigar stropowy oraz prefabrykowany element płyty stropowej z dźwigarami stropowymi

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BR112015019966A2 (pt) * 2013-02-21 2017-07-18 Peehr Mathias Oernfeldt Svensson elemento de placa de telhado pré-fabricado, viga que transporta carga pré-fabricada, e, método para a produção de elementos de placa de telhado pré-fabricados
PL420892A1 (pl) * 2017-03-17 2018-09-24 Climatic Spółka Z Ograniczoną Odpowiedzialnością Spółka Komandytowa Bezmostkowy kompozyt konstrukcyjny do budowy ścian i stropów oraz sposób budowy ścian i stropów budynków przy użyciu bezmostkowych kompozytów konstrukcyjnych

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US5519978A (en) * 1994-02-07 1996-05-28 Sucato; Edward Stud assembly
CN2217661Y (zh) * 1995-02-11 1996-01-17 中屋营造工程股份有限公司 挑空梁模
US6250042B1 (en) * 1996-06-17 2001-06-26 University Of Central Florida Additional metal and wood composite framing members for residential and light commercial construction
SE521234C2 (sv) * 2001-05-14 2003-10-14 Ra I Hoegsby Ab Metod att åstadkomma hålprofil och en av U-formiga plåtprofiler sammanfogad hålprofilbalk
US7418807B1 (en) * 2004-05-28 2008-09-02 Epic Metals Corporation Decking
AU2008238434A1 (en) * 2007-04-16 2008-10-23 Peehr Mathias Ornfeldt Svensson Premanufactured roof plate element
CN201071565Y (zh) * 2007-07-19 2008-06-11 迈特建筑科技(武汉)有限公司 建筑用冷弯薄壁c型钢构件
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EP2678491A1 (fr) 2014-01-01
PL2678491T3 (pl) 2015-10-30
CN103562474A (zh) 2014-02-05
CN103562474B (zh) 2016-04-13
DK2678491T3 (en) 2015-07-20

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