WO2012113423A1 - Élément structural léger porteur - Google Patents

Élément structural léger porteur Download PDF

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Publication number
WO2012113423A1
WO2012113423A1 PCT/EP2011/005960 EP2011005960W WO2012113423A1 WO 2012113423 A1 WO2012113423 A1 WO 2012113423A1 EP 2011005960 W EP2011005960 W EP 2011005960W WO 2012113423 A1 WO2012113423 A1 WO 2012113423A1
Authority
WO
WIPO (PCT)
Prior art keywords
chambers
lightweight
lightweight construction
construction element
element according
Prior art date
Application number
PCT/EP2011/005960
Other languages
German (de)
English (en)
Inventor
Peter Meyer
Harry Klein
Original Assignee
Peter Meyer
Harry Klein
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
Priority claimed from DE102011014206A external-priority patent/DE102011014206A1/de
Application filed by Peter Meyer, Harry Klein filed Critical Peter Meyer
Priority to EP11794641.8A priority Critical patent/EP2678490B1/fr
Priority to DK11794641.8T priority patent/DK2678490T3/en
Publication of WO2012113423A1 publication Critical patent/WO2012113423A1/fr
Priority to HRP20190636 priority patent/HRP20190636T1/hr

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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
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/34—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts
    • E04C2/36—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by transversely-placed strip material, e.g. honeycomb panels
    • E04C2/365—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by transversely-placed strip material, e.g. honeycomb panels by honeycomb structures
    • 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
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/34—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts
    • E04C2/3405—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by profiled spacer sheets
    • 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
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/34—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts
    • E04C2/3405—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by profiled spacer sheets
    • E04C2002/3444—Corrugated sheets
    • E04C2002/3466—Corrugated sheets with sinusoidal corrugations
    • 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
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/34—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts
    • E04C2/3405—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by profiled spacer sheets
    • E04C2002/3472—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by profiled spacer sheets with multiple layers of profiled spacer sheets
    • 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
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/34—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts
    • E04C2002/3477—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by tubular elements parallel to the sheets

Definitions

  • the invention relates to a load bearing or carrying
  • Lightweight element with one or more rows of parallel chambers, each surrounded by tubular boundary walls, wherein the boundary walls are at least partially made of paper.
  • lightweight element of the type mentioned is known with a support structure consisting of juxtaposed and / or superimposed tubular hollow bodies and carries a coating to form the wall surfaces.
  • the elongated tubular hollow bodies are made of paper, cardboard,
  • Recycled paper is particularly preferred as a low-cost starting material for producing the hollow body, since the rough surface in this case the adhesion of the preferably formed as a plaster layer
  • the plaster layer increases the weight of the lightweight elements without them
  • untreated tubular hollow bodies of paper or paperboard have only a limited carrying capacity in their longitudinal direction, unless they have very thick boundary walls, which in turn increases the weight of the lightweight components.
  • Another disadvantage of the known lightweight components is that made of paper tubular hollow body easily from the environment or from the plaster layer of water
  • the present invention seeks to provide a sustainable or lightweight structural element of the type mentioned with a very high load capacity and a very low weight or weight per unit area.
  • boundary walls are interconnected and form a multi-chamber hollow profile, which has a constant cross section in the direction of the longitudinal center axes of the chambers, and that the chambers facing the inner surfaces and facing away from the chambers outer surfaces of the Boundary walls with a water repellent and the bending and / or
  • Compressive strength of the paper-enhancing coating and / or impregnation are provided.
  • the load-bearing capacity of the multi-chamber hollow profile is higher than that of the side-by-side tubular hollow body made of untreated paper according to DE 100 18, which is provided with a plaster layer and increases the bending and / or compressive strength of the paper 710 AI can be increased many times over with corresponding cross-sectional dimensions and wall thicknesses, and thus also the load-bearing capacity of the entire lightweight component.
  • the water-repellent coating after assembly of the lightweight element that moisture penetrates into the paper over the life of the lightweight element, which could affect the strength of the hollow section and thus the carrying capacity of the lightweight element.
  • Multi-chamber hollow sections hard foam is applied.
  • a hard foam as a topcoat or
  • Hollow sections and an additional cover layer can be in comparison to the known lightweight element further reduce the weight and on the other hand increase the strength, since hard foam despite a very low specific weight has a higher strength than plaster or plaster. Also by the mutual connection of the boundary walls of the chambers can the carrying capacity can be increased, since in this way buckling of individual boundary walls or wall sections is difficult.
  • Chambers expediently connected to each other by the applied to the outer surfaces of the boundary walls water-repellent coating, which adheres the abutting boundary walls together.
  • a hard foam is applied to the outside of the multi-chamber hollow profile
  • the boundary walls of the adjacent chambers are suitably interconnected by the hard foam, which also acts as an adhesive or binder and the boundary walls
  • the boundary walls of the chambers are provided both at its inner and outer periphery with the coating and / or impregnation so that neither from inside nor from the outside moisture penetrate to the paper and thereby the bending and /or
  • Impregnation a greater increase in bending and / or Compressive strength than in the case of a one-sided coating and / or impregnation and thus a further increase in the carrying capacity of the lightweight components can be achieved.
  • the coating and / or impregnation consists of a resin which is applied to the inner and outer peripheral surfaces of the tubular hollow bodies either after or during the manufacture of the tubular hollow body of paper in the liquid state and then cured.
  • a resin is used which cures rapidly with or without the application of heat, preferably a thermosetting reaction resin in the form of a two-component system comprising, in addition to the reaction resin, an accelerator or catalyst for accelerating the curing.
  • a preferred embodiment of the invention provides for the use of a polyisocyanuric or Epoxyisocyanuratharzes, for example a P.oly- or Epoxyisocyanuratharzes, the company Bayer MaterialScience under the name
  • Blendur is available. Alternatively, however, other resins can be used, such as epoxy resins or
  • Phenolic resins which are also water repellent when cured and increase the flexural and / or compressive strength of the tubular hollow body made of paper.
  • the hollow profile consists of one or more rows of tubular bodies arranged side by side, which abut with their outer periphery against the outer periphery of adjacent tubular hollow body and are glued to the adjacent hollow bodies, each hollow body defining one of the parallel chambers.
  • the hollow profile may alternatively be made of one or more
  • Rows of spaced apart tubular hollow bodies are made, so that the flowable rigid foam from one side into a previously equipped with the hollow bodies
  • Form can be introduced where he passes through the gaps between penetrates through the adjacent hollow bodies and so fills the entire shape.
  • This alternative is particularly suitable for wall elements containing only one or two rows of elongated, embedded in hard foam hollow bodies.
  • such wall element can be used well for the production of walls of freight containers, railway cars or other means of transport, where a low basis weight is particularly advantageous.
  • these advantageously have cylindrical outer and inner peripheral surfaces or a circular cross section, so that they can be used on existing machines
  • These hubs can be used, for example, in the manufacture of paper or cardboard wrapping cores from kitchen rolls or toilet paper rolls. These hubs are made by two or more strip-shaped
  • hollow bodies are also produced by wrapping wider sheets or webs of paper in the circumferential direction of the tubular hollow bodies in several layers one above the other.
  • This invention alternative has a particularly high
  • the lightweight supporting structural element can be further stiffened and, in the case of an insert as a plate-shaped wall element or as a columnar supporting element its compressive strength in the vertical direction can be further increased as the adjacent
  • tubular hollow body support each other and themselves hold each other in their position, which counteracts kinking of individual tubular hollow body under load.
  • Hollow body can also reduce the volume of the chambers inside the tubular hollow body compared to the total volume of the
  • tubular hollow bodies is delivered.
  • the hollow profile of two or more plates is formed with preferably wave-shaped profile having alternating parallel projections and depressions and are placed on each other so that the projections of adjacent plates abut each other and can be glued together.
  • the parallel chambers are created, which are arranged in a row next to each other and as well as the chambers in the tubular hollow bodies of adjacent chambers are separated.
  • the bonding between the adjacent panels ensures that they support each other and prevent buckling of individual panels.
  • the water-repellent coating applied to the surfaces of the boundary walls is expediently used.
  • the paper used is preferably
  • the boundary walls according to a further advantageous embodiment of the invention from less than eight superimposed layers or layers, preferably from less than five layers or layers and best of only two to three layers or layers of paper, so that the wall thickness the boundary walls is less than 4 mm, preferably less than 2 mm and most preferably less than 1 mm.
  • the chambers may conveniently have cross-sectional dimensions of about 50 mm so that the ratio between the wall thickness of the tubular hollow bodies and the cross-sectional dimensions is desirably less than 1:25, preferably less than 1:50 and most preferably about 1: 100 , With such dimensions can be load-bearing
  • the lightweight element is to be used as a plate-shaped wall element or as a columnar support element, the hollow profile is aligned so that the longitudinal axes of the parallel chambers have a vertical orientation. As a result, the boundary walls in the direction in which the
  • Wall or support element acts, their greatest compressive strength, so that the wall or support member receives a maximum load capacity.
  • the hollow profile extends advantageous
  • the hollow profile expediently encloses only a single row of juxtaposed chambers whose longitudinal central axes in the cross section expediently lie on a line.
  • two or more rows of chambers can be arranged side by side for larger wall thicknesses, wherein the chambers of adjacent rows expediently offset from each other longitudinal central axes, in order to ensure the most dense packing of the chambers and a low basis weight.
  • the hard foam fills the gusset between the tubular hollow bodies, wherein it connects adjacent hollow body together and prevents mutual displacement or displacement of adjacent hollow body under load.
  • An additional stiffening of the lightweight element can be achieved by one or more layers of a fiber-reinforced resin, such as
  • polyurethane with a fiber fabric or fiber fabric embedded therein may be applied, preferably directly onto the flat surface of the rigid foam.
  • a surface cover layer may be applied as a termination.
  • each wall or support member At the upper and lower ends of each wall or support member, end members are preferably attached which close the open upper and lower ends of the chambers.
  • the end elements of lightweight wall elements are preferably elongated and extend along the top and bottom ends, being on one side with projections
  • the closing elements ensure that the upper and lower end of the chambers
  • End elements are suitably connected by the rigid foam with the rest of the lightweight element, for example by being attached prior to curing of the rigid foam.
  • the lightweight element as a plate-shaped bottom or
  • the parallel chambers also have vertical longitudinal central axes, in which case, however, a plurality of short tubular hollow bodies or short plates with wavy profile in rows offset from each other are arranged so that they are aligned perpendicular to the broad side surfaces of the floor or ceiling element and together form a honeycomb structure.
  • the upper and lower ends of the chambers or the honeycomb structure can be closed by plates which abut against the aligned upper and lower end faces of the hollow profile.
  • the upper and lower ends of the chambers or honeycomb structure may also be closed by one or more layers of fiber reinforced resin or resin, for example by fiber reinforcement as a nonwoven, woven fabric or scrim of fibers on the respective upwardly turned or facing broadsides the honeycomb structure is placed so that the fleece, fabric or scrim the open ends of the
  • the resin may preferably be a thermosetting synthetic resin which cross-links upon application of heat or UV radiation and thereby harden, or a two-component resin.
  • the fiber reinforcement can consist of glass, carbon, aramid or synthetic fibers. If required, one or more further layers of fiber-reinforced resin and optionally an additional surface covering layer may be applied as a finish.
  • the honeycomb structure can also be placed with its broadside turned downwards on a resin impregnated layer of the nonwoven fabric, fabric or -gelege to close the ends of the chambers.
  • the ends of the boundary walls of the chambers connect with the curing of the resin with the latter, so that they are then firmly bonded to the layers of fiber reinforced resin and form a floor or ceiling element with high bending stiffness.
  • This type of lightweight element can be used with advantage as a floor or ceiling element for a cargo or living container, such as a sea or transport container, since the floors and ceilings of the latter are currently made of so-called multiplex panels from a tropical wood, not more is available for a long time.
  • a hard foam As a hard foam, a hard foam is preferably used, which has a large total pore volume and thus a low specific gravity, but in which the individual pores are very small and preferably have cross-sectional dimensions of less than 1 mm, more preferably less than 0.5 mm.
  • the rigid foam can be a curing reaction foam, for example a higher crosslinked rigid polyurethane foam, which is also referred to as PIR foam.
  • PIR foam crosslinked rigid polyurethane foam
  • two or more components of the starting material may be introduced into a mold containing the tubular hollow body and crosslinked or cured in the mold.
  • a rigid foam may be used, which consists of a plurality of microcavities in a surrounding matrix, for example, so-called microballs, that is, microscopic hollow bodies of glass, which are embedded in the matrix.
  • the lightweight structural elements are used in the construction of buildings or the like, they must have sufficient fire resistance, in Germany at least Fire protection class B1S-D0 required, but fire protection class A is preferred.
  • a material with a relatively high temperature resistance is advantageously used for a coating or impregnation of the tubular hollow body, such as the aforementioned poly- or Epoxyisocyanuratharz, and on the other a temperature-resistant, dimensionally stable foam at higher temperatures, such as For example, the already mentioned PIR foam of fire protection class B1S-D0 or AI.
  • Hard foam has a specific weight of 40 kg / m 3 and is thus very light, but on the other hand has such a hardness that it can be drilled or otherwise processed. This makes it possible to hard foam on the opposite narrow sides of the adjacent lightweight components in their
  • the grooves and springs on the opposite narrow sides of adjacent lightweight components can also be formed by profiles made of metal or plastic, which are glued by the rigid foam with the hollow profile.
  • Fire protection class AI can also be achieved in that the hard foam consists of microscopic hollow spheres of glass, which are embedded in a non-combustible matrix, such as a waterglass adhesive.
  • the transport weight of the lightweight components according to the invention is the lowest when the parallel chambers are filled with air. However, it is also possible for sound and / or
  • Thermal insulation already in the manufacture of lightweight construction a suitable material with a low specific weight to introduce into the chambers, such as a polystyrene granules, paper flakes or a fibrous insulating material.
  • a suitable material with a low specific weight to introduce into the chambers such as a polystyrene granules, paper flakes or a fibrous insulating material.
  • Heavier soundproofing materials and especially sand which has a very good sound-insulating effect, are preferably filled only in the course of assembly of the lightweight components in the chambers.
  • sound insulation materials preferably flowable materials, such as sand or polystyrene granules are used, because these materials can be easily filled from above into the open-topped chambers, where they then fall by gravity down.
  • the chambers can also be filled with a fibrous or flake-shaped sound and / or heat-insulating material which can be blown into the chambers, for example, or with an open-cell foam with which the chambers are foamed for sound and / or thermal insulation become.
  • a filling of the chambers with the hard foam is also a preferred embodiment of the invention.
  • a further advantageous embodiment of the invention provides that the rigid foam has at least one and preferably above all wall elements forms two flat broadside surfaces.
  • the lightweight component may also be provided with one or two additional cover layers, which are formed by a voltage applied to a broad side against the hard foam and / or the hollow profile plate.
  • the refractory plates of a mineral material used preferably mineral plates of magnesium oxide and magnesium chloride with a glass fiber reinforcement, which are commercially available under the name Megapan and in a thickness of a few millimeters as a topcoat on the Lightweight element can be attached so that they form the visible outer surfaces.
  • the plates are preferably connected by the rigid foam with the hollow profile or glued to this.
  • Figure 1 is a partially cut away perspective view of parts of two lightweight wall elements.
  • FIG. 2 is an enlarged cross-sectional view of a portion of one of the lightweight wall elements of FIG. 1;
  • FIG. Fig. 3 is a partially cut away perspective view of parts of two modified lightweight wall elements;
  • FIG. 4 is an enlarged cross-sectional view of a portion of one of the lightweight wall elements of FIG. 3;
  • Fig. 5 is a partially cut away perspective view of parts of two further modified lightweight wall elements
  • Fig. 6 is an enlarged cross-sectional view of a part of one of the lightweight wall elements of Fig. 5;
  • Fig. 7 is a partially cut away perspective view of a portion of yet another modified lightweight wall element
  • Fig. 8 is an enlarged cross-sectional view of a portion of the lightweight wall elements of Fig. 7; 9 is an enlarged side view of a portion of a top bar for the upper or lower end of the
  • Fig. 10 is an enlarged bottom view of the portion of the end strip of Fig. 4;
  • FIG. 11 is an enlarged cross-sectional view of a portion of another lightweight wall element
  • Fig. 12 is an enlarged cross-sectional view of a part of still another lightweight wall element
  • Figure 13 is an enlarged cross-sectional view corresponding to Figure 10, but with a heat-insulating granules in a part of the chambers ..;
  • Fig. 14 is a cross-sectional view of a columnar
  • Fig. 15 is a sectional view of a formed as a floor or ceiling plate lightweight construction element
  • Fig. 16 is a partially cut away enlarged
  • Fig. 17 is a partially cut away enlarged
  • FIG. 1 perspective cutaway view of another designed as a floor or ceiling slab lightweight construction element.
  • the structural or supporting lightweight components 2 shown in the drawing each contain a multi-chamber hollow section 4, the one or more rows of chambers 6 with parallel longitudinal central axes 8 and one in the direction of the longitudinal central axes
  • the hollow body 12 are embedded in a hard foam 18, which the gusset 20 between the adjacent tubular
  • Hollow bodies 12 fills and the hollow body 12 also
  • the tubular hollow bodies 12 are arranged inside the lightweight member 2 in a parallel and vertical alignment side by side.
  • the hollow body 12 of the lightweight components 2 in Figures 1 to 8 and 14 to 17 lie with their outer peripheral surfaces 14 against the outer peripheral surfaces 14 of adjacent hollow body 12, so that the hollow body 12 are mutually supported.
  • the lightweight wall elements 2 in Figures 1 to 8 depending on the thickness of the wall member 10 and the
  • the lightweight wall element 2 includes a plurality of rows of tubular hollow bodies 12, the longitudinal center axes 8 are the
  • this is the volume of filled with foam 18
  • the tubular hollow bodies 12 consist of several completely or partially glued together wound layers or layers of recycled paper.
  • Each of the layers or layers may consist of helical paper strips that are continuously wound on a mandrel so that they overlap with adjacent coils or strips, adhering to one another at the points of overlap.
  • the layers may also consist of wider sheets or webs wound in the circumferential direction of the hollow body 12.
  • the recycled paper has no special quality requirements.
  • the tubular hollow bodies 12 In lightweight construction elements 2 in the form of wall or support elements, the tubular hollow bodies 12 have a length corresponding to the height of the wall or support element 2 and are open at their opposite ends. The ratio between the outer diameter and the wall thickness of the tubular
  • Hollow body 12 is greater than 25: 1, preferably greater than 50: 1 and is best between about 50: 1 and about 100: 1. In the latter case, the wall thickness of
  • Hollow body 12 at a diameter of about 50 mm about 0.5 mm.
  • the weight of the hollow body 12 coated with resin 10 prior to its embedding in the hard foam 18 is less than 100 g per meter length, preferably less than 50 g and most preferably less than 25 g.
  • Resin 10 used for coating is an MDI based epoxy or polyisocyanurate reactive resin or a modified epoxy or polyisocyanurate reaction resin, both commercially available under the name
  • Blendur are available from Bayer MaterialScience. Depending on the composition, these resins either trimerize after addition of a catalyst by the addition of heat or without the need for a catalyst by heat alone to form a highly crosslinked thermosetting resin or plastic having excellent thermal stability. The crosslinking or curing of the resin occurs subsequent to the application of the resin 10 to the outer and inner peripheral surfaces
  • the finished tubular hollow body 12 are introduced in the desired number and arrangement in a closable mold with a shape corresponding to the shape and dimensions of the lightweight elements 2 mold cavity, so that the open ends of the chambers 6 to the opposite Front ends of the hollow body 12 are closed by mold walls of the mold. Subsequently, the gaps or gussets 20 are foamed between the adjacent hollow bodies 12 with the hard foam 18, which consists of a PIR foam and is cured in the mold.
  • the hard foam 18 which consists of a PIR foam
  • the lightweight wall elements 2 in Figures 1, 2, 5, 6, 7 and 8 are not provided at its two opposite broad sides 22 with one or two additional cover layers, so that they essentially only from the tubular hollow bodies 12 and the hard foam 18th exist, which fills the gaps or gusset 20 between the outer periphery 14 of the adjacent hollow body 12 and in this case, the surfaces of the two broad sides 22 of the lightweight elements 2 forms.
  • foam can be used as rigid foam with advantage a so-called integral foam, in which the hardness of the cured foam in the direction of the surfaces of the broadsides 22 increases.
  • tubular hollow bodies 12 having an outer diameter of 50 mm have a weight per unit area of less than 3 kg / m 2 and preferably less than 2 kg / m 2 .
  • the weight per unit area of these lightweight components 2 is approximately 1.5 to 2 kg / cm 2 , the weight per unit area of the untreated
  • Coating used resin 10 0.55 to 0.60 kg / m 2 and the basis weight of the rigid foam 18 is 0.55 to 0.65 kg / m 2 , so that these three components thus deliver about one-third of the basis weight.
  • the resin may, for example, be polyurethane, in which a woven or scrim of glass fibers, synthetic fibers or carbon fibers is embedded.
  • cover layers of other materials such as, for example, mineral fiber cover plates, which consist of one with glass fibers reinforced mixture of magnesium oxide and magnesium chloride, abut with their inner surfaces against the adjacent row of hollow bodies 12 and are bonded by the hard foam 18 with the tubular hollow bodies 12. Possibly.
  • the rigid foam 18 is a PIR foam, ie polyurethane foam, which is crosslinked higher than the conventional polyurethane foam and is thus dimensionally stable even at higher temperatures. Due to the dimensional stability and the relatively small pore dimensions of less than 1 mm, the hard foam 18 in the production of the lightweight wall elements 2 in Figures 1 to 8 on the two opposite vertical narrow sides of each wall element 2 to a groove 30 and to a spring 32nd be formed so that adjacent wall elements 2 by means of a tongue and groove joint 30, 32 are interconnected.
  • PIR foam ie polyurethane foam
  • the lightweight wall elements 2 are each provided at its upper and lower ends with a closure strip 34.
  • the end strip 34 has a planar broad side 36 facing away from the ends of the hollow bodies 12.
  • Broadside 38 is a series of cylindrical projections 40 whose outer diameter is slightly smaller than that
  • the tubular hollow body 12 so that they can be inserted into the open ends of the chambers 6 at the front ends of the hollow body 12 and thus improve the cohesion of the hollow body 12 at the top and bottom.
  • the free ends of the projections 40 are tapered or chamfered.
  • the end strips 34 have a length and width of the lightweight wall elements 2 corresponding length and width and can at the
  • the strips 34 can each be offset from the tongue and groove joints 30, 32 are attached to the joints of adjacent lightweight wall elements 2, so that they the shocks
  • lightweight wall elements 2 having a height of 980 mm, a width of 250 mm and a thickness of 56 mm, consisting of a series of cylindrical tubular hollow bodies 12, which at their outer and inner peripheral surfaces 14, 16 with an epoxy or polyisocyanurate
  • Reaction resin 10 are coated, and two cover layers 28 of mineral fiber cover plates with a thickness of 3 mm on both broad sides and a filling of rigid PIR foam 18 in the interstices or gussets 20 between the tubular hollow bodies 12 and the cover layers 28 of FIG
  • the high carrying capacity of the lightweight elements 2 in the direction of the longitudinal center axes 8 of the tubular hollow body 12 is achieved by the coating of the outer and inner peripheral surfaces 14 and 16 of the hollow body 12 with the resin 10, after its crosslinking and curing the compressive strength of the hollow body 12 in the direction of their Longitudinal central axes 8 increased by a multiple.
  • the multi-chamber hollow profile 4 does not consist of one or more rows of individual interconnected hollow bodies 12, but of two or more
  • abutting and interconnected plates 42 each having a cross section in the form of a sine wave with alternating projections in the form of wave crests 44 and
  • Wave crests 44 and the wave troughs 46 of adjacent plates 42 are offset from each other by one half-wave, so that in each case the wave crests 44 and the wave troughs 46 of the two plates 42 are opposite, with respective opposite wave crests 44 abut with their crests 50 against each other and the crests 50 together are glued.
  • a row of juxtaposed chambers 6, which have the same cross sections, which remain the same in the direction of the longitudinal axes of the chambers 6, is formed between two adjacent plates 42.
  • the adjacent chambers 6 are separated from each other by the adhesive 50 at the apexes 50.
  • Panels 42 like the hollow profiles 6, consist of one or more paper layers and are on their chambers 6
  • Hollow body 12 described.
  • the resin 10 used for coating is the same as previously described.
  • Form the boundary walls of the chambers 6 are similar, as previously described for the hollow body 12.
  • the lightweight construction elements 2 in FIGS. 11 to 13 are wall elements.
  • the wall element 2 in Fig. 11 is like the wall element 2 in Fig. 3 and 4 with two flat cover layers 28 in the form of thin mineral fiber plates or from a Provided fiber-reinforced resin, which abut against the apex 56 of the troughs 46 and are glued between them with hard foam 18 to the multi-chamber hollow section 4, wherein the hard foam 18, the gusset 20 between the chambers 6 facing away from the outer surfaces 54 of the plates 42 and the
  • Cover layers 28 fills.
  • the multi-chamber hollow section 4 of the wall element 2 in Fig. 11 consists of two superimposed plates 4
  • the chambers 6 of adjacent rows are each in the lateral direction by half the chamber width
  • the inner plates 42 are each with the crests 50 of their peaks 44 against one of the two
  • Hard foam 18 fills the gusset 20 between the outer surfaces facing away from the chambers 6 54 of the outermost plates 42 and forms the surfaces of the two broad sides 22 of the
  • the lightweight construction element 2 shown in FIGS. 15 and 16 in the form of a plate-shaped ceiling or floor element consists of a plurality of short tubular hollow bodies 12 embedded in the hard foam 18 (shown only in FIG. 15).
  • the hollow body 12 are vertically aligned and are each with its outer periphery 14 against the outer periphery 14 of adjacent hollow body 12, with which they are glued back through the hard foam 18 in the interstices or gussets 20.
  • the cover layers 28 may be made of any suitable material. Grooves (not shown) and springs 32 are again provided on the narrow sides of the lightweight components 2, so that adjacent elements 2 can be connected to each other by tongue and groove joints 30, 32.
  • Fig. 17 shows a cross section through a part of another lightweight element 2 in the form of a plate-shaped ceiling or floor element, in which the open ends of the chambers 6 are closed instead of by plate-shaped cover layers 28 by layers 60 of a fiber-reinforced synthetic resin 62.
  • the hollow body 12 as in the ceiling or
  • Hollow body 12 rests with its outer peripheral surface 14 against the outer peripheral surfaces 14 of six adjacent hollow bodies 12. Subsequently, the mutually adjacent hollow body 12 by means of the resin 10 existing
  • the fiber reinforced resin 62 closed by a fleece 64, fabric or scrim made of synthetic resin, glass or carbon fibers on each upturned broadside of the honeycomb structure is placed so that it completely covers the open ends of the chambers 6. Subsequently, the nonwoven fabric 64, fabric or scrim is impregnated with the curable synthetic resin 62, which is cast in a thin layer on the upper side of the nonwoven fabric 64, fabric or scrim, and through the nonwoven fabric 64, fabric or scrim to the ends of the hollow bodies 12 penetrates where it adheres during curing.
  • tubular chambers 6 enclosed by the multi-chambered hollow profile 4 can either be empty or contain a heat- or sound-insulating material, for example

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

L'invention concerne un élément structural léger porteur (2) doté d'une ou de plusieurs rangées de chambres (6) parallèles entourées respectivement par des parois de délimitation (12, 42) tubulaires, les parois de délimitation (12, 42) étant constituées au moins en partie de papier. L'objet de l'invention est d'augmenter la capacité portante des éléments structuraux légers (2) et de réduire leur masse surfacique. A cet effet, les parois de délimitation (12, 42) sont reliées ensemble et forment un profilé creux à chambres multiples (4) présentant une section transversale constante en direction des axes longitudinaux médians (8) des chambres (6) et les surfaces intérieures (16, 52) tournées vers les chambres (6) et les surfaces extérieures (14, 54), opposées aux chambres, des parois de délimitations (12, 42) sont pourvues d'un revêtement (10) et/ou d'une imprégnation hydrophobe et augmentant la résistance à la flexion et/ou à la compression du papier.
PCT/EP2011/005960 2011-02-25 2011-11-28 Élément structural léger porteur WO2012113423A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP11794641.8A EP2678490B1 (fr) 2011-02-25 2011-11-28 Élément structural léger porteur
DK11794641.8T DK2678490T3 (en) 2011-02-25 2011-11-28 SUSTAINABLE OR CARRIING LIGHT WEIGHT ELEMENT
HRP20190636 HRP20190636T1 (hr) 2011-02-25 2019-04-02 Lagani građevinski element koji je sposoban nositi ili je nosiv

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102011012492 2011-02-25
DE102011012492.6 2011-02-25
DE102011014206.1 2011-03-17
DE102011014206A DE102011014206A1 (de) 2011-03-17 2011-03-17 Tragfähiges oder tragendes Leichtbauelement

Publications (1)

Publication Number Publication Date
WO2012113423A1 true WO2012113423A1 (fr) 2012-08-30

Family

ID=45346410

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/005960 WO2012113423A1 (fr) 2011-02-25 2011-11-28 Élément structural léger porteur

Country Status (4)

Country Link
EP (1) EP2678490B1 (fr)
DK (1) DK2678490T3 (fr)
HR (1) HRP20190636T1 (fr)
WO (1) WO2012113423A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014090787A1 (fr) * 2012-12-12 2014-06-19 Krones Ag Dispositif pour le traitement de boissons avec des éléments de paroi en plastique
WO2018178191A3 (fr) * 2017-03-28 2018-11-22 Heying Und Herzsprung Gbr Plaque de construction résistante à la chaleur et à la compression

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH323528A (de) * 1956-05-23 1957-08-15 Senn Duerig Jakob Hohlplatte
DE2117794A1 (de) * 1970-04-13 1971-11-04 Jacquelin, Guy, Grenoble (Frankreich) Wellpappe und Verfahren zu deren Herstellung
DE10018710A1 (de) 2000-04-14 2001-10-18 Hasit Trockenmoertel Gmbh Leichtbauwand, Verfahren als auch System zu deren Herstellung sowie Wandelement
EP1522648A1 (fr) * 2003-10-10 2005-04-13 Unda Maris B.V. Elément de paroi plat en cellulose
WO2007123398A2 (fr) * 2006-04-21 2007-11-01 Unda Maris Holding N.V. Matériau en forme de plaque
WO2009045095A1 (fr) * 2007-10-02 2009-04-09 Axxion Technology B.V. Panneau composite et son procédé de production

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2836418A1 (de) * 1978-08-19 1980-02-28 Helmut Dipl Phys Nussbaum Halbzeug fuer sandwich-leichtbauweisen, hergestellt aus roehrchen von vlies-werkstoff, z.b. aus papier
GB2341619A (en) * 1995-10-24 2000-03-22 H H Robertson Panel with open cell honeycomb structure

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH323528A (de) * 1956-05-23 1957-08-15 Senn Duerig Jakob Hohlplatte
DE2117794A1 (de) * 1970-04-13 1971-11-04 Jacquelin, Guy, Grenoble (Frankreich) Wellpappe und Verfahren zu deren Herstellung
DE10018710A1 (de) 2000-04-14 2001-10-18 Hasit Trockenmoertel Gmbh Leichtbauwand, Verfahren als auch System zu deren Herstellung sowie Wandelement
EP1522648A1 (fr) * 2003-10-10 2005-04-13 Unda Maris B.V. Elément de paroi plat en cellulose
WO2007123398A2 (fr) * 2006-04-21 2007-11-01 Unda Maris Holding N.V. Matériau en forme de plaque
WO2009045095A1 (fr) * 2007-10-02 2009-04-09 Axxion Technology B.V. Panneau composite et son procédé de production

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014090787A1 (fr) * 2012-12-12 2014-06-19 Krones Ag Dispositif pour le traitement de boissons avec des éléments de paroi en plastique
WO2018178191A3 (fr) * 2017-03-28 2018-11-22 Heying Und Herzsprung Gbr Plaque de construction résistante à la chaleur et à la compression

Also Published As

Publication number Publication date
EP2678490B1 (fr) 2019-01-02
EP2678490A1 (fr) 2014-01-01
DK2678490T3 (en) 2019-04-23
HRP20190636T1 (hr) 2019-11-01

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