EP1633937A1 - Element de construction composite, notamment destine a la fabrication de structures de paroi pour des batiments, et procede de fabrication de celui-ci - Google Patents

Element de construction composite, notamment destine a la fabrication de structures de paroi pour des batiments, et procede de fabrication de celui-ci

Info

Publication number
EP1633937A1
EP1633937A1 EP04731931A EP04731931A EP1633937A1 EP 1633937 A1 EP1633937 A1 EP 1633937A1 EP 04731931 A EP04731931 A EP 04731931A EP 04731931 A EP04731931 A EP 04731931A EP 1633937 A1 EP1633937 A1 EP 1633937A1
Authority
EP
European Patent Office
Prior art keywords
section bar
central portion
reinforcing section
construction element
openings
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
EP04731931A
Other languages
German (de)
English (en)
Other versions
EP1633937B1 (fr
Inventor
Piero Cretti
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.)
Plastedil SA
Original Assignee
Plastedil SA
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 Plastedil SA filed Critical Plastedil SA
Priority to PL04731931T priority Critical patent/PL1633937T3/pl
Publication of EP1633937A1 publication Critical patent/EP1633937A1/fr
Application granted granted Critical
Publication of EP1633937B1 publication Critical patent/EP1633937B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • E04C2/296—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 non-metallic or unspecified sheet-material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
    • E04B5/026—Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of plastic
    • 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
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/20—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of plastics
    • E04C2/205—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of plastics of foamed plastics, or of plastics and foamed plastics, optionally reinforced
    • 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
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/20—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of plastics
    • E04C2/22—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of plastics reinforced

Definitions

  • Composite construction element in particular for making wall structures for buildings and process for its manufacture
  • the present invention refers to a composite construction element, which has preferred although not exclusive use for making vertical or horizontal wall structures or coating structures for housing units, industrial warehouses and buildings in general, as well for making external or dividing walls of bodies for lorries or similar containment structures.
  • the present invention concerns, more specifically, a composite construction element comprising:
  • At least one reinforcing section bar transversely extending in said body between said faces and incorporated in said expanded plastics material, said at least one reinforcing section bar comprising a central portion having at least one fm extending in a cantilevered fashion from said central portion and forming a longitudinal edge therewith.
  • construction elements made of expanded plastics material, preferably expanded polystyrene, in the form of sheets or sections of suitable shape and size, having the function of thermal- and soundproofing elements, have been used for some time.
  • expanded plastics material preferably expanded polystyrene
  • self-supporting is used to indicate the ability of the construction element to withstand without structural yields or permanent deformations the stresses undergone during transportation and/or installation.
  • a self-supporting construction element made of expanded plastics material is described, in particular a floor element, comprising a substantially parallelepipedic central body in which a reinforcing section bar, made of a thin metal sheet shaped as an I-beam, is integrated during the molding operations.
  • the present invention therefore has the object of providing a composite construction element made of expanded plastics material which is provided with improved self- supporting characteristics and, more specifically, with an improved resistance to bending loads applied to the construction element during transportation and/or installation.
  • this problem is solved by a construction • element of the type indicated above, which is characterized in that said at least one reinforcing section bar comprises a plurality of openings at least partially formed in the central portion of the section bar at said longitudinal edge.
  • this problem is also solved by a construction element of the type indicated above, which is characterized in that said at least one reinforcing section bar comprises a plurality of openings formed in the central portion of the section bar at a predetermined distance from said longitudinal edge comprised between about 1% and about 4% and, more preferably, between about 2% and about 3%, of the width of the central portion of the section bar.
  • the distance between the opemngs formed in the central portion of the section bar and the aforementioned longitudinal edge is understood to be measured from the peripheral edge of the openings and along a direction substantially perpendicular to the longitudinal edge itself.
  • the Applicant has perceived in particular that the desired improved self-supporting characteristics and the improved characteristics of resistance to bending loads of a composite construction element of the type indicated above can be achieved by improving the integration of the reinforcing section bar in the mass of expanded plastics material at the zones which may trigger possible cracks or fissures, i.e. at the longitudinal edge formed by the fin with respect to the central portion of die section bar.
  • this improved integration of the reinforcing section bar in the mass of expanded plastics material can advantageously and effectively be achieved by forming a plurality of openings in the central portion of the section bar at, or immediately adjacent to, the aforementioned longitudinal edge.
  • the openings formed in the central portion of the reinforcing section bar are made at the aforementioned longitudinal edge
  • the openings are preferably formed astride the longitudinal edge so as to comprise a first portion extending in the aforementioned at least one fin and a second portion extending in the central portion of the reinforcing section bar, the first portion of the openings having an area lower than the area of the second portion.
  • an optimal integration of the reinforcing section bar in the body of expanded plastics material of the construction element can advantageously be achieved with a substantial improvement of the resistance to the bending loads of the construction element itself without penalizing at the same time the mechanical characteristics of the fin(s) extending from the central portion of the reinforcing section bar.
  • the area of the first portion of the openings is comprised between about 10% and about 40% of the total area of the openings formed astride the longitudinal edge.
  • such an area is comprised between about 20% and about 30% of the total area of the openings formed astride the longitudinal edge.
  • the openings formed in the central portion of the reinforcing section bar are made at the aforementioned longitudinal edge, the openings can be substantially tangent to such an edge.
  • openings substantially tangent to the longitudinal edge is used to indicate not only openings exactly tangent to such an edge but also openings formed at a maximum distance from the edge equal to about 1% of the width of the central portion of the reinforcing section bar.
  • the distance between such openings and the longitudinal edge be comprised between about 2 mm and about 5 mm and preferably between about 3 mm and about 4 mm.
  • the shape of the openings formed at or near the aforementioned longitudinal edge is not critical.
  • the openings in fact, can have any suitable geometric shape such as for example circular, polygonal (for example triangular, rectangular, square), elliptical and so forth.
  • suitable geometric shape such as for example circular, polygonal (for example triangular, rectangular, square), elliptical and so forth.
  • the preferred shape is the circular one.
  • the aforementioned openings have a transversal size, measured along a direction substantially perpendicular to the longitudinal axis of the central portion of the section bar, comprised between about 10 mm and about 60 mm and, still more preferably, comprised between about 20 mm and about 50 mm.
  • the aforementioned openings are longitudinally spaced apart pitchwise and can be arranged according to one or more rows parallel to the longitudinal edge formed by the aforementioned at least one fin of the reinforcing section bar.
  • the reinforcing section bar is made of any material having suitable structural characteristics compatible with the expanded plastics material, for example cold laminated steel, preferably galvanized, rigid plastics materials such as for example PNC, polyester polymers, polycarbonate, acrylonitrile-butadiene-styrene (ABS) copolymers and the like.
  • suitable structural characteristics compatible with the expanded plastics material for example cold laminated steel, preferably galvanized, rigid plastics materials such as for example PNC, polyester polymers, polycarbonate, acrylonitrile-butadiene-styrene (ABS) copolymers and the like.
  • the reinforcing section bar is transversely extending in the central body of the construction element along the entire thickness thereof.
  • the reinforcing section bar also is longitudinally extending in the central body of the construction element along substantially the entire length thereof.
  • the reinforcing section bar is provided with a pair of fins perpendicularly extending from axially opposite sides with respect to the central portion of the section bar.
  • the reinforcing section bar is preferably C-shaped, Z-shaped, ⁇ -shaped or I-shaped for example by adjoining together two C-shaped elements making the respective central portions fit each other so that the openings formed at or in the immediate vicinity of the longitudinal edge are preferably coaxial with each other, so as to have the desired optimal structural continuity of the expanded plastics material at opposite sides of the reinforcing element.
  • the construction element is also provided with optimal supporting characteristics.
  • the fin(s) of the reinforcing section bar extend(s) flush with and substantially parallel to at least one face of the body made of expanded plastics material of the construction element.
  • the fin(s) of the reinforcing section bar is/are completely incorporated in the expanded plastics material of die body made of expanded plastics material of the construction element.
  • the fin that extends flush with the construction element carries out the function of providing an adequate supporting surface to which possible outer finishing elements may be fixed, whereas the fm(s) completely incorporated in the expanded plastics material carry out the advantageous function of increasing the compression resistance of the reinforcing section bar, increasing the self-supporting characteristics of the construction element.
  • the fm(s) comprise(s) at least one first rectilinear portion, substantially perpendicular to the central portion of the reinforcing section bar and possibly a second inclined end portion forming an angle of predetermined value with the first rectilinear portion.
  • this second end portion forms an angle comprised between about 40° and about 120° and, still more preferably, equal to about 90° with respect to the first portion of the fin.
  • the reinforcing section bar has a thickness comprised between about 0.4 mm and about 1.2 mm and, still more preferably, between about 0.6 mm and about 1.0 mm.
  • the central portion of the reinforcing section bar has, after formation of the fins, a width comprised between about 50 mm and about 180 mm and, still more preferably, between about 60 mm and about 120 mm, whereas the opposite fin(s) of the section bar have a width comprised between about 15 mm and about 60 mm and, still more preferably, comprised between about 30 mm and about 50 mm.
  • the fin(s) comprise a first rectilinear portion, substantially perpendicular to the central portion of the reinforcing section bar and a second inclined end portion
  • a first portion has a width comprised between about 15 mm and about 60 mm and, still more preferably, comprised between about 30 mm and about 50 mm
  • the second portion has a width comprised between about 4 mm and about 10 mm and, still more preferably, comprised between about 4 mm and about 6 mm.
  • the reinforcing section bar is advantageously provided with a second plurality of openings formed in the central portion thereof.
  • Such openings carry out the two-fold advantageous function of lightening the reinforcing section bar improving the self-supporting characteristics of the construction element, and of allowing an even more intimate integration of the reinforcing section bar in the mass of expanded plastics material.
  • the mass of expanded plastics material is able to interpenetrate with the reinforcing section bar during molding, integrating and stably holding in position the reinforcing section bar in the central body of the construction element.
  • these additional openings formed in the central portion of the reinforcing section bar can advantageously be equipped, along the peripheral edge thereof, with a protruding lip or, alternatively, with one or more protrusions distributed along the peripheral edge and angularly offset with one another, adapted to constitute an additional attaching means of the reinforcing section bar to the mass of expanded plastics material.
  • Such protrusions can extend either from a single side of the reinforcing section bar or from opposite sides thereof.
  • these additional openings are formed astride the longitudinal axis of the central portion of the reinforcing section bar.
  • the total area of all of the openings formed in the reinforcing section bar is comprised between about 10% and about 60% of the total area of the section bar, meaning with this term the area of the overall side surface of the section bar including that of its fin(s) (i.e. the area of the overall side surface before forming the fins and the openings).
  • the total area of all the openings formed in the reinforcing section bar is comprised between about 30% and about 40% of the total area thereof.
  • the shape of the openings of this second plurality - obtainable in a way known er se, such as for example by punching - is not critical; however, it is preferably circular for clear reasons of simplicity of realization.
  • the aforementioned additional openings have a transversal size, measured along a direction substantially perpendicular to the longitudinal axis of the central portion of the section bar, comprised between about 15 mm and about 100 mm and, still more preferably, comprised between about 30 mm and about 80 mm.
  • the openings are formed in the reinforcing section bar according to three parallel rows: a first central row of circular openings, having a prevailing diameter, arranged pitchwise along the longitudinal axis of the central portion of the reinforcing section bar and two lateral rows of circular openings of smaller diameter, arranged pitchwise at opposite sides of the aforementioned central row and formed at or near the longitudinal edge formed by the fins with the central portion of the section bar.
  • the circular openings of d e lateral rows have parallel axes and are positioned between two consecutive openings of the central row, as shall become clearer in the following description.
  • the pitch of the openings of the central row is proportional to their size and is equal to that of the lateral rows and is comprised between about 80 mm and about 100 mm and, still more preferably, is equal to about 90 mm.
  • the openings formed at or at a predetermined distance from the aforementioned longitudinal edge have an overall area comprised between about 15% and about 40% of the total area of all of the openings formed in the reinforcing section bar.
  • the construction element can further comprise at least one rigid covering element associated to the reinforcing section bar.
  • such a covering element is a panel of plasterboard, wood, rigid plastics material or another suitable material having a decorative and/or structural function and optionally coated with ceramic tiles.
  • the construction elements of the invention can also achieve advantageous supporting characteristics, i.e. be able to autonomously support possible static loads applied thereon, as a function of the predetermined covering element chosen, having or not structural characteristics.
  • the construction elements described above comprising a plurality of openings formed in the central portion of the section bar at or near the longitudinal edge formed between the aforementioned at least one fin and said central portion, can be obtained by means of a process as defined in the attached claim 22 or 23, respectively.
  • the invention also relates to a wall structure for buildings comprising at least one composite construction element of the type described above and, preferably, comprising a plurality of such construction elements arranged next to each other.
  • the invention finally relates to a coating structure for covering buildings comprising a plurality of composite construction elements of the type described above arranged next to each other on a supporting structure.
  • Fig. 1 shows a perspective view, in partial cross-section, of a first embodiment of a construction element according to the invention
  • Fig. 2 shows an enlarged scale perspective view of some details of the reinforcing section bar incorporated in the construction element of figure 1 ;
  • Fig. 3 shows a perspective view, in partial cross-section, of a further embodiment of a construction element according to the invention
  • figs. 4 and 5 show respective enlarged scale perspective views of some details of some alternative embodiments of the reinforcing section bar incorporated in the construction element according to the invention
  • Fig. 6 shows a perspective view, in partial cross-section, of a further embodiment of a construction element according to the invention
  • Fig. 7 shows a cross section view of a further embodiment of a construction - element according to the invention.
  • FIG. 8 shows a plan view of a strip of structural material that can be used for making a construction element according to the invention
  • Fig. 9 shows an enlarged scale plan view of a detail of the strip of figure 8.
  • a composite construction element made of expanded plastics material for example expanded polystyrene, according to a first embodiment of the present invention is generally indicated at 1.
  • the construction element 1 of the illustrated example can advantageously be used for making supporting and dividing walls for buildings and comprises a body 2, in which a plurality of parallel recesses 3 are longitudinally defined.
  • construction element 1 of the illustrated example can also be advantageously used for making bodies for lorries or similar structures.
  • the body 2 is also laterally equipped with opposite sides 4, 5 respectively provided with a groove 6 and, respectively, with a rib 7, having a mating shape, longitudinally extending along the entire length of the construction element 1.
  • a plurality of construction elements 1 can be stably connected with each other by means of a substantially mating joint.
  • the construction element l is also provided with opposite, upper and respectively lower, faces 8, 9 and incorporates two structurally identical reinforcing section bars 10, 11, arranged in a mirror-like fashion with respect to a longitudinal plane of symmetry Y-Y of the construction element 1.
  • the faces 8, 9 are substantially planar, it goes without saying that their shape is not critical for the purposes of the invention; the shape of the faces, in fact, may assume any other geometrical configuration useful for the intended purposes.
  • the reinforcing section bars 10, 11 are longitudinally extending in the body 2 of the construction element 1 along substantially the entire length thereof between the aforementioned upper and lower faces 8, 9.
  • the reinforcing section bars 10 and 11 are substantially C-shaped and each comprise a central portion 12 and a pair of upper and, respectively, lower fins 13, 14, extending in a cantilevered fashion from the central portion 12 and forming axially opposite longitudinal edges 15a, 15b therewith.
  • the fins 13, 14 are extending from the ends of the central portion 10 substantially perpendicularly to the same.
  • the reinforcing section bars 10 and 11 are obtained by suitably shaping a sheet of cold laminated galvanized steel having a thickness of about 0.8 mm, by means of apparatuses knownper se and as will be better apparent in the following.
  • the reinforcing section bars 10, 11 are transversely extending in the body 2 of the construction element 1 substantially along the entire thickness thereof, so that - as illustrated in figure 1 - the fins 13, 14 extend substantially flush with the faces 8, 9 of the body 2.
  • the opposite fins 13, 14 comprise a first portion 13a, 14a substantially perpendicular to the central portion 12 of the reinforcing section bars 10, 11 and a second inclined end portion 13b, 14b forming an angle having a predetermined value with the first portion 13 a, 14a.
  • the central portion 12 of the reinforcing section bars 10, 11 has a width equal to about 80 mm
  • the first portion 13 a, 14a of the fins 13, 14 has a width equal to about 45 mm
  • the end portion 13b, 14b has a width equal to about 5 mm and forms an angle equal to about 90° with respect to the first portion 13a, 14a.
  • the reinforcing section bars 10, 11 comprise two rows of openings respectively indicated with reference numerals 16 and 17, substantially parallel to each other and to the longitudinal axis X-X of the central portion 12.
  • the openings 16 and 17 are circular holes obtained by punching and are longitudinally spaced apart pitchwise.
  • the openings 16 and 17 are at least partially formed in the central portion 12 of the reinforcing section bars 10, 11 at the longitudinal edges 15a, 15b.
  • Such openings carry out the advantageous function of providing the expanded plastics material which constitutes the body 2 of the construction element 1 with a structural continuity that substantially completely eliminates the problems of insufficient resistance to bending loads which affect the composite construction elements of the prior art.
  • the openings 16 and 17 maximize the resistance of the construction element to bending loads applied on the zones 2a, 2b of the body 2 that are positioned at the outer sides of the reinforcing section bars 10, 11.
  • the openings 16 and 17 also carry out the additional advantageous functions of lightening the reinforcing section bars 10, 11 and of fixing them as tightly as possibly to the mass of expanded plastics material.
  • the openings 16 and 17 are formed astride the respective longitudinal edges 15a, 15b and comprise a first portion 16a, 17a extending in the fins 13, 14 and a second portion 16b, 17b extending in the central portion 12 of the reinforcing section bars 10, 11.
  • the first portion 16a, 17a of the openings 16, 17 has in this case an area lower than the area of the second portion 16b, 17b.
  • the area of the aforementioned first portion 16a, 17a of the openings 16, 17 is equal to about 30% of the total area of the openings themselves.
  • the reinforcing section bars 10, 11 are advantageously provided with an additional plurality of openings 18, preferably circular holes obtained by punching, formed in the central portion 12.
  • the reinforcing section bars 10, 11 are provided with three parallel rows of openings: a first central row including the circular openings 18, having a prevailing diameter, pitchwise arranged astride the longitudinal axis X-X of the central portion 12 of the section bars, and two lateral rows including the circular openings 16, 17 having a smaller diameter, positioned at opposite sides of the aforementioned central row.
  • the circular openings 16, 17 of the lateral rows have parallel axes and are positioned between two consecutive openings 18 of the central row, as illustrated in figure 1.
  • the openings 18 have a diameter equal to about 60 mm, whereas the openings 16 and 17 have a diameter equal to about 30 mm, whereas the pitch of all of the rows of holes 16-18 is equal to about 90 mm.
  • the aforementioned openings 16-18 therefore, define a perforated area or void area equal to about 30% of the total area of the reinforcing section bars 10 and 11, meaning with the term “total area” the area of the overall side surface of the section bars (central portion 12 and fins 13, 14).
  • the openings 16, 17 have an overall area equal to about 30% of the total area of all of the openings 16-18 formed in the reinforcing section bars 10, 11.
  • the construction element 1 described above is able to achieve the desired improved self-supporting characteristics imparted to the same by d e reinforcing section bars 10, 11 suitably integrated without any substantial interruption in the structural continuity of the mass of expanded plastics material ensured by the openings 16, 17.
  • the construction element 1 can further comprise a rigid covering element, such as for example a panel of plasterboard, indicated with reference numeral 19 and illustrated with dotted and dashed lines in the figures, associated to one or both the fins 13, 14 of the reinforcing section bars 10, 11.
  • a rigid covering element such as for example a panel of plasterboard, indicated with reference numeral 19 and illustrated with dotted and dashed lines in the figures, associated to one or both the fins 13, 14 of the reinforcing section bars 10, 11.
  • the construction element 1 comprises a pair of panels 19 associated to the fins 13, 14 of the reinforcing section bars 10, 11 on the faces 8, 9 of the construction element 1 in a way known per se, for example by means of a series of screws or pegs which are not shown.
  • the construction element 1 of the invention is capable to achieve advantageous supporting characteristics, i.e. is capable of autonomously supporting possible static loads applied thereon.
  • the reinforcing section bars 10, 11 of the construction element 1, fins included, are completely incorporated in the expanded plastics material of the body 2.
  • the fins 16, 17 carry out in this case the advantageous additional function of increasing the compression resistance of the reinforcing section bars 10, 11, increasing the self-supporting characteristics of the construction element 1.
  • the openings 16, 17 formed in the central portion 12 of the reinforcing section bars 10, 11 - only the upper part of which being shown in such a figure for clear reasons of symmetry - are substantially tangent to the longitudinal edges 15a, 15b.
  • the openings 16, 17 are formed in the central portion 12 of the reinforcing section bars 10, 11 - only the upper part of which being shown here as well in such a figure for clear reasons of symmetry - at a predetermined distance d from the longitudinal edges 15a, 15b comprised between about 1% and about 4% of the width of the central portion 12 of the section bars themselves.
  • such a distance d is equal to about 3 mm.
  • the reinforcing section bars 10, 11 of the construction element 1 are substantially Z-shaped and each comprise a pair of lower and, respectively, upper fins 16, 17 perpendicularly extending from the ends of the central portion 12 from opposite sides thereof.
  • the reinforcing section bars 10, 11 are transversely extending in the body 2 of the construction element 1 substantially for its entire thickness, so that - as illustrated in figure 6 - the fins 13, 14 extend substantially flush with the opposite faces 8, 9 of the body 2.
  • the fins 13, 14 comprise also in this case a first rectilinear portion 13 a, 14a substantially perpendicular to the central portion 12 of the reinforcing section bars 10, 11 and a second inclined end portion 13b, 14b forming an angle of predetermined value with the first portion 13a, 14a.
  • the first portion 13a, 14a of the fins 13, 14 has a width equal to about 45 mm, whereas the end portion 13b, 14b has a width equal to about 5 mm and forms an angle equal to about 90° with respect to the first portion.
  • the characteristics of resistance to bending loads of the construction element 1 are further improved in this additional embodiment.
  • the substantially Z- shaped reinforcing section bars 10, 11 of the construction element 1 are completely incorporated in the expanded plastics material of the body 2.
  • the fins 13, 14 carry out also in this case the advantageous additional function of increasing the compression resistance of the reinforcing section bars 10, 11, increasing the self-supporting characteristics of the construction element 1.
  • a strip 20 of rigid structural material, for example galvanized steel, intended to form the reinforcing section bars 10, 11, is provided.
  • the strip 20 has a predetermined thickness and width for example equal to about 0.8 mm and to about 180 mm, respectively.
  • the strip 20 comprises a central portion 21 and a pair of side portions 22, 23 extending from axially opposite sides with respect to the central portion 21, which portions are intended to constitute the central portion 12 and, respectively, the fins 13, 14 of the reinforcing section bars 10, 11 being manufactured, as shall become clearer hereafter.
  • the process according to the invention comprises the formation in the strip 20 of the openings 16 and 17 extending at least partially in the central portion 21 at the opposite side portions 22 and 23.
  • the openings 16 and 17 are circular and form a pair of parallel rows extending in the longitudinal direction along the strip 20.
  • the additional row including the openings 18, also preferably circular, is also simultaneously formed astride the longitudinal axis X-X of the strip 20.
  • Such a forming operation of the openings 16-18 can be carried out in a conventional way knownper se , for example by punching.
  • the construction element 1 starting from a pre-perforated strip wound in a reel and positioned upstream of the bending station.
  • the strip 20 is bent in a way knownper se - for example by means of a profiler - along a pair of longitudinal bending lines 24, 25 substantially parallel to each other and intersecting the openings 16 and 17.
  • the reinforcing section bars 10, 11 are formed comprising the aforementioned central portion 12 and the fins 13, 14 extending in a cantilevered fashion from the same both below or above the lying plane of the strip 20 and forming the opposite longitudinal edges 15a and 15b.
  • the bending step is carried out in such a way that the fins 16 and 17 form an angle of about 90° with respect to the lying plane of the central portion 21 of the strip 20.
  • the bending lines 24, 25 extend parallel to the row of openings 16, 17 at a distance d' from the longitudinal axis Z-Z of the row comprised between about 15% and about 50%) of the maximum transversal size D of the aforementioned openings (in this case equal to the diameter of the circular openings) measured along a direction substantially perpendicular to the longitudinal axis X-X of the central portion 21 of the strip 20.
  • the distance d' is preferably equal to about 5 mm.
  • the alternative embodiments of the construction element 1 of the invention in which the openings 16 and 17 are substantially tangent to the longitudinal edges 15a and 15b or are positioned in their immediate vicinity, can be produced by bending the strip 20 along bending lines 24, 25 that are suitably positioned with respect to the aforementioned openings.
  • the distance between the longitudinal bending lines 24 and 25 and the openings 16, 17 is between about 1% and about 4% of the width of the central portion 12 of the resulting section bar, in this case coinciding with the width of the central portion 21 of the strip 20.
  • the distance d is preferably equal to about 3 mm.
  • the bending step of the strip 20 can be carried out, still using apparatuses knownper se , in such a way as to further bend the fins 13, 14 by about 90° so as to obtain the aforementioned first portion 13 a, 14a substantially perpendicular to the central portion 21 of the strip 20 and the second inclined end portion 13b, 14b forming an angle of predetermined value with respect to the first portion 13 a, 14a.
  • the bending step of the strip 20 can be carried out, still using apparatuses knownper se , in such a way as to further bend the fins 13, 14 respectively over and under the lying plane of the strip 20 itself, so as to obtain the construction element structures 1 illustrated in figures 6 and 7.
  • the reinforcing section bars 10, 11 thus obtained are positioned in a molding seat of a suitable apparatus for molding plastics material that is conventional per se and not shown.
  • the steps of feeding granules of expandable plastics material into said space and of subjecting the granules of plastics material in the molding seat to expansion and subsequent welding are then carried out, so as to form the body 2 of the construction element 1 incorporating reinforcing section bars 10, 11.
  • the forming step of the body 2 made of expanded plastics material is carried out in such a way that the fins 13, 14 of the reinforcing section bars 10, 11 extend flush with and substantially parallel to the faces 8, 9 of the body 2 itself, so as to obtain the construction element structures 1 illustrated in figures 1, 2 and 6.
  • the forming step of the body 2 made of expanded plastics material can be carried out in such a way that the fins 13, 14 of the reinforcing section bars 10, 11 are completely incorporated in the body 2 itself, so as to obtain the construction element structures 1 illustrated in figures 3 and 7.
  • the process finally comprises a final step, also carried out with apparatuses knownper se , in which the body 2 is cut to size so as to obtain a construction element having the desired length.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Finishing Walls (AREA)
  • Building Environments (AREA)
  • Panels For Use In Building Construction (AREA)

Abstract

L'invention concerne un élément de construction composite (1) comprenant un corps (2) conçu dans un matériau plastique expansé placé sur des surfaces opposées (8, 9) et au moins une barre de section de renfort (10, 11) s'étendant de manière transversale dans le corps (2) entre les surfaces (8, 9) et incorporée dans le matériau plastique expansé. La barre de section de renfort (10, 11) comprend une partie centrale (12) présentant au moins une ailette (13, 14) s'étendant en saillie à partir de celle-ci et formant un bord longitudinal (15a, 15b) avec celle-ci, ainsi qu'une pluralité d'ouvertures (16, 17) au moins partiellement formées dans la partie centrale (12) de la barre de section (10, 11) au niveau du bord longitudinal (15a, 15b). L'élément de construction (1) présente un caractère avantageux en ce qu'il possède des caractéristiques autonomes et des caractéristiques améliorées de résistance aux charges de flexion auxquelles il est soumis pendant l'installation.
EP04731931.4A 2003-05-16 2004-05-10 Element de construction composite, notamment destine a la fabrication de structures de paroi pour des batiments, et procede de fabrication de celui-ci Expired - Lifetime EP1633937B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04731931T PL1633937T3 (pl) 2003-05-16 2004-05-10 Kompozytowy element konstrukcyjny, w szczególności do wykonywania struktur ściennych dla budynków i sposób jego wytwarzania

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT000985A ITMI20030985A1 (it) 2003-05-16 2003-05-16 Elemento costruttivo composito, in particolare per la realizzazione di strutture di parete per edifici e procedimento per la sua fabbricazione.
US51108503P 2003-10-15 2003-10-15
PCT/EP2004/005001 WO2004101905A1 (fr) 2003-05-16 2004-05-10 Element de construction composite, notamment destine a la fabrication de structures de paroi pour des batiments, et procede de fabrication de celui-ci

Publications (2)

Publication Number Publication Date
EP1633937A1 true EP1633937A1 (fr) 2006-03-15
EP1633937B1 EP1633937B1 (fr) 2016-09-07

Family

ID=33454679

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04731931.4A Expired - Lifetime EP1633937B1 (fr) 2003-05-16 2004-05-10 Element de construction composite, notamment destine a la fabrication de structures de paroi pour des batiments, et procede de fabrication de celui-ci

Country Status (10)

Country Link
US (1) US20070039266A1 (fr)
EP (1) EP1633937B1 (fr)
CA (1) CA2522163C (fr)
ES (1) ES2606167T3 (fr)
IT (1) ITMI20030985A1 (fr)
MX (1) MXPA05012339A (fr)
PL (1) PL1633937T3 (fr)
PT (1) PT1633937T (fr)
RU (1) RU2346118C2 (fr)
WO (1) WO2004101905A1 (fr)

Families Citing this family (14)

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Publication number Priority date Publication date Assignee Title
US8006450B2 (en) 2004-10-13 2011-08-30 Plastedil S.A. Composite floor structure with a protruding bar upper portion in a floor element groove
ITMI20041934A1 (it) * 2004-10-13 2005-01-13 Plastedil Sa Elemento costruttivo composito in particolare per la realizzazione di strutture di solaio e strutture di parete per edifici e procedimento per la sua fabbricazione
US8752348B2 (en) 2005-02-25 2014-06-17 Syntheon Inc. Composite pre-formed construction articles
MX2007010381A (es) * 2005-02-25 2007-12-12 Nova Chem Inc Paneles de construccion previamente formados compuestos, una construccion y un montaje de formacion de marco.
US7677009B2 (en) 2007-02-02 2010-03-16 Nova Chemicals Inc. Roof truss system
IT1404214B1 (it) * 2011-02-28 2013-11-15 Pontarolo Engineering Spa Modulo costruttivo autoportante adatto per la costruzione di solai in cemento armato.
JP6280746B2 (ja) * 2011-03-18 2018-02-14 ニール，ピーター・メルビン 複合壁パネル、壁システムおよびそれらの構成部品、ならびにそれらの構築方法
ITMI20121022A1 (it) * 2012-06-12 2012-09-11 Dst Const Ltd Elemento modulare in polistirene espanso sinterizzato per la formazione di solai in calcestruzzo armato e solaio in calcestruzzo armato comprendente una pluralita' di detti elementi modulari.
US9617724B2 (en) 2012-10-17 2017-04-11 Matthew John Lubberts Building systems and methods
CA2887945C (fr) 2012-10-17 2021-02-02 Matthew John LUBBERTS Systemes et procedes de construction
WO2016205656A1 (fr) * 2015-06-19 2016-12-22 Syntheon, Inc. Panneau de construction composite ayant des éléments de fourrure intégrés
IT201800003210A1 (it) * 2018-03-02 2019-09-02 Angelo Candiracci Struttura di pannello edilizio in polistirene espanso sinterizzato con predisposizione al rivestimento
US20240167264A1 (en) * 2021-03-26 2024-05-23 Feris Corporation Modular, customizable, prefabricated building envelope system
CN113389269A (zh) * 2021-07-08 2021-09-14 海南大学 装配式混凝土梁柱节点及其施工方法

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Also Published As

Publication number Publication date
PT1633937T (pt) 2016-12-22
RU2005135150A (ru) 2006-08-10
CA2522163A1 (fr) 2004-11-25
CA2522163C (fr) 2011-11-22
US20070039266A1 (en) 2007-02-22
EP1633937B1 (fr) 2016-09-07
WO2004101905A1 (fr) 2004-11-25
ES2606167T3 (es) 2017-03-23
ITMI20030985A1 (it) 2004-11-17
RU2346118C2 (ru) 2009-02-10
PL1633937T3 (pl) 2017-06-30
MXPA05012339A (es) 2006-01-30

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