US3763616A - Structural unit having an expanded metal sheet and method for manufacturing the structural unit - Google Patents

Structural unit having an expanded metal sheet and method for manufacturing the structural unit Download PDF

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US3763616A
US3763616A US00195946A US3763616DA US3763616A US 3763616 A US3763616 A US 3763616A US 00195946 A US00195946 A US 00195946A US 3763616D A US3763616D A US 3763616DA US 3763616 A US3763616 A US 3763616A
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sheet
elongated
cutouts
sheet portions
portions
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R Pastorelli
P Martini
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D47/00—Making rigid structural elements or units, e.g. honeycomb structures
    • B21D47/01—Making rigid structural elements or units, e.g. honeycomb structures beams or pillars
    • B21D47/02—Making rigid structural elements or units, e.g. honeycomb structures beams or pillars by expanding
    • 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
    • E04C3/083—Honeycomb girders; Girders with apertured solid web
    • 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
    • E04C2003/0421—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 comprising one single unitary part
    • 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
    • E04C2003/0434—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 open cross-section free of enclosed cavities
    • 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
    • E04C2003/0482—Z- or S-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
    • 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
    • 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
    • E04C2003/0495—Truss like structures composed of separate truss elements the truss elements being located in several non-parallel surfaces
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/18—Expanded metal making

Definitions

  • ABSTRACT A structural unit to be used in a static building structure, and a method for manufacturing the structural unit.
  • the structural unit includes an expanded metal sheet which initially is formed with elongated narrow cut-outs which, when the sheet is stretched transversely of the cutouts, form triangular openings in the expanded metal sheet.
  • the sheet is then bent into a wave-shaped configuration having elongated uninter- 12 Claims, 18 Drawing Figures PAIENIEUUBI 9191s SHEET 1 [IF 3 PATENTED 9 973 SHEET 3 Bf STRUCTURAL UNIT HAVING AN EXPANDED METAL SHEET AND METHOD FOR MANUFACTURING THE STRUCTURAL UNIT BACKGROUND OF THE INVENTION
  • the present invention relates to static building structures.
  • the present invention relates to structural units to be used in static building structures as well as to a method for manufacturing such structural units.
  • the present invention relates to a structural building unit, and a method for manufacturing the same, of the type which is suitable for carrying loads in building structures, the structural unit of the invention being suitable for use in roofs, or for use in floors or balconies of buildings of alltypes.
  • load-bearing structures such as double-T Bates beams which have cores which are stretched after incisions are formed with shears, so as to form a reticulated planar framework having elongated portions which normally are inclined at 45, with respect to each other, these structures being used primaily, with other elements of the same type, to form pylons for carrying electric lines.
  • Yet another object of the present invention is to provide a structural unit, and method for manufacturing the same, which has sufficient open space to be capable of accommodating, without any difficulty, elongated pipes for fluids, unit heaters, electrical or airconditioning systems, or noise or temperature insulating materials as well as anti-vibration materials.
  • the object of the present invention also include the provision of a structural unit which not only can form conventional floors but also balconies with the structure of the invention being capable of assuming negative moments and forming cantilever types of structures.
  • the structural unit of the invention includes, as an important part thereof, an expanded metal sheet which is of a generally wave-shaped configuration having elongated uninterrupted sheet portions at the crests of the waves and having oppositely inclined sheet portions extending between these crests and formed with rows of oppositely oriented triangular openings which result from stretching of the sheet which initially is formed with elongated narrow cutouts.
  • a structural means is fixed to the crests where the elongated uniterrupted sheet portions are located, and this structural means maytake the form of suitable beams, slabs of concrete, or the like, and this structural unit of the invention is very strong while at the same time being light in weight and has an interior hollow space capable of accommodating any desired piping, insulation, or the like, normally situated between the floors of a building.
  • the expanded metal sheet is made in only one piece and is very strong, giving the structural unit of the invention great rigidity in strenth as well as light weight and low cost and the possibility of prefabrication before being transported to the site of a building.
  • the sheet from which the expanded metal sheet is formed is initially formed with rows of elongated narrow cutouts which, after the sheet is stretched transversely of the cutouts, form the triangular openings separated by elongated narrow sheet portions which, as a result of drawing, have a U-shaped cross section, so that while the expanded metal sheet is light in weight and has large spaces nevertheless it is of great strength.
  • FIG. 1 is a fragmentary illustration of a metal sheet from which, the expanded sheet of the invention is formed
  • FIG. 2 is a fragmentary perspective view schematically illustrating part of the method of the present invention for manufacturing an expanded metal sheet;
  • FIG. 3 is a view of the structure of FIG. ll showing how one of the pairs of rows of eleongated narrow cutouts form triangular openings after stretching of the sheet transversely of these cutouts;
  • FIG. 4 illustrates the final condition which the stretched sheet takes after it has been stretched transversely of the elongated narrow cutouts
  • FIG. 5 shows the configuration which the sheet of FIG. 4 takes after the sheet is bent into a substantially wave-shaped configuration
  • FIG. 6 is a fragmentary transverse section taken along line VI-VI of FIG. 5 and showing an elongated narrow sheet portion in cross section;
  • FIG. 7 is a fragmentary sectional elevation taken along line VII-VII of FIG. 5, illustrating the structure shown in FIG. 6 in a longitudinal view with FIG. 7 also showing the parts of the sheet which are joined to the elongated narrow sheet portion;
  • FIG. 8 is a fragmentary elevation showing a structural unit of the invention as it appears when looking toward one of the sides thereof;
  • FIG. 9 sjows the structure of FIG. 8 as it appears when viewed perpendicularly to the view shown in FIG.
  • FIG. 10 is an end elevation illsutrating one possible way in which a pair of sheets can be joined to each other;
  • FIG. 11 illustrates another manner of joining a pair of sheets to each other
  • FIG. 12 shows yet a third way of joining a pair of sheets to each other
  • FIG. 13 is a fragmentary partly sectional elevation showing another type of structural unit of the invention, utilizing concrete slabs rather than beams as shown in FIGS. 8 and 9;
  • FIG. 14 is a fragmentary elevation of the structure of FIG. 13 as seen when viewed perpendicularly to the view shown in FIG. 13;
  • FIG. 15 illustrates how the structure of FIGS. 13 and 14 can be supported
  • FIG. 16 illustrates how the structure of FIGS. 13 and 14 can be supported by a wall so as to form a floor, for example;
  • FIG. 17 illustrates how units as shown in, FIGS. 13 and 14 can be joined to each other.
  • FIG. 18 is a schematic partly sectional elevation fragmentarily illustrating another way in which the structural unit of the invention can be supported in a static building structure.
  • FIG. 1 there is fragmentarily illustrated therein a part of a metal sheet 1 made of any desired metal which can be expanded in a manner described below to form the expanded metal part of the structural unit of the invention.
  • This metal sheet 1 has a pair of opposed parallel straight end edges, one of which is fragmentarily shown at the upper horizontal edge of FIG. 1.
  • the sheet 1 also has a pair of opposed parallel side edges, one of which appears at the left of FIG. 1, these side edges being perpendicular to the end edges so that the sheet I is of a generally rectangular or square configuration.
  • the sheet 1 is initially formed with a plurality of cutouts 2. These cutouts in the illustrated example are in the form of elongated narrow notches which are punched through the sheet I so that these notches have the illustrated configuration. It is to be noted that instead of actually punching notches through the body of the sheet 1, it is also possible to provide extremely thin portions of the sheet 1 which will tear when these thin portions forming grooves in the initial sheet, for example, are transversely stretched. Any cutout structure which has the elongated configuration shown for the notches 2 will suffice. It is only required that when the sheet 1 is stretched transversely of the elongated cutouts, the latter will expand to form openings referred to below. i
  • the elongated cutouts 2 extend in a direction which is generally parallel to the end edges of the sheet 1. Moreover, these elongated cutouts 2 are arranged in rows which also extend parallel to the end edges. The rows themselves are arranged in pairs which are separated from each other by the elongated sheet portions 4 which are uninterrupted and extend all the way across the sheet between its opposed side edges, these elongated sheet portions 4 also being parallel to the opposed end edges.
  • the pairs of rows of cutouts 2 have outer edges adjoining the elongated uniterrupted sheet portions 4 and inner edges which are directed toward each other.
  • the spacing between the cutouts 2 in any one row is such that the distance from one cutout 2 up to the next cutout 2 is substantially shorter than the lengths of the several cutouts, all of which are the same.
  • the cutouts in each pair of adjoining rows of cutouts are symmetrically staggered.
  • FIG. 2 the above-described sheet of FIG. 1 is stretched in a manner illustrated in FIG. 2.
  • a suitable ⁇ clamping means 5 schematically represented in FIG. 2, clamps the sheet 1 at the elongated uninterrupted sheet portions 4 thereof.
  • the action of the clamping bars 5 is such that they prevent longitudinal contraction of the elongated sheet portions 4, while the latter are spread apart from each other.
  • clamping elements 5 arranged as shown in FIG. 2, clamping a pair of successive elongated sheet portions 4, these clamping elements are spread apart from each other, as indicated by the arrows shown in FIG. 2, and the result is that the part of the sheet between the pairs of clamping members 5 will assume the configuration shown at the upper part of FIG. 3.
  • the sheet is stretched transversely of the cutouts 2 between each pair of elongated uninterrupted sheet portions 4, so
  • the triangular openings 6 are arranged in a series as illustrated in FIG. 3, where the successive triangular openings are oriented oppositely from each other with the bases of the triangles adjoining the elongated uninterrupted portions 4 while the successive oppositely oriented triangular openings 6 of each row are separated from each other by an elongated narrow sheet portion 7 separating the inclined edges of the successive triangles in the manner shown at the upper part of FIG. 3.
  • the pairs of clamping members 5 as shown in FIG. 2 may be successively applied to successive elongated uninterrupted sheet portions 4 so as to successivley transversely stretch the sheet to provide a structure as shown in FIG. 4, or an entire series of pairs of clamping members 5 may be applied to all of the elongated transverse uninterrupted portions 4, with all of the clamping units shifted with respect to each other, in a direction parallel to the opposed side edges of the sheet, so as to achieve a structure as shown in FIG. 4 in a single operation.
  • the elongated portions 4 of the sheet are prevented from contracting longitudinally, as the triangular openings 6 are formed during stretching of the sheet transversely of the elongated cutouts 2, the narrow sheet portions 3 are longitudinally drawn, while being inclined to form the portions 7.
  • the longitudinal drawing of the narrow portions 3 to form the portions 7 is controlled in such a way that these portions 7 assume a channel-shaped configuration providing the expanded metal sheet with the inclined strut portions 8 shown in FIG. 5 and illustrated in section in FIGS. 6 and 7. Moreover it will be noted from FIG.
  • the elongated narrow portions 3 are swung through approximately 45 angles so that the triangular openings 6 have opposed inclined side edges which are substantially at right angles to each other and which form substantially 45 angles with the base edges which join the elongated uninterrupted sheet portions 4.
  • the expanded metal sheet which is still in a substantially planar condition is then given the substantially wave-shaped configuration shown in FIG. 5.
  • This configuration shown in FIG. 5 is brought about by inclining the sheet portions which are formed with the series of openings 6 oppositely to each other on opposite sides of alternating elongated uninterrupted sheet portions 4, so that the successive portions of the sheet which are formed with the series of openings 6 are oppositely inclined with respect to each other in the manner shown most clearly in FIG. 8.
  • These oppositely inclined portions formed with the openings 6 terminate in longitudinal edge regions 9 which are inclined with respect to the elongated uninterrupted sheet portions 4, and because of this substantially wave-shaped configuration, alternate sheet portions 4 are located in one plane while the remaining sheet portions 4 are located in a parallel plane, giving the expanded metal the threedimensional configuration shown in FIG. 5.
  • pairs of sheet portions which are oppositely inclined with respect to the alternate elongated uninterrupted sheet portions 4 are inclined, for example, through an angle 30 form an arrangement as shown in FIG. 5. Also, at its ends the sheet portions formed with the openings 6 are bent into a vertical plane, as viewed in FIG. 8, so
  • the elongated uninterrupted sheet portions 4 which are located at the crests of the waves are fixed with a structural means which serves to complete the structural unit of the invention.
  • this structural means is formed by the beams 12 and 13.
  • the upper sheet portions 4 are fixed, as by welding, for example, with a series of transversely extending beams 12 which are parallel to each other, and the lower elongated uninterrupted sheet portions 4 are fixed in a similar manner to beams 13.
  • a strong, lightweight structural unit is provided, and this unit is capable of carrying a very substantial load.
  • This unit may be used in a roof structure, for example, or at any part of a standard building structure in order to form part of a load-carrying assembly.
  • FIG. 10 shows how a pair of expanded metal sheets of the invention may be joined to each other in end-to-end relation, by placing the vertical end portions 11 thereof next to each other and by then joining the metal sheets with a weld 14.
  • a weld 14 it is possible to use bolt-and-nut assemblies 15 and 16.
  • FIG. 12 shows an arrangement as shown in FIG. 12 where the ends of the expanded metal sheet are not inclined into a vertical plane and instead are left in the inclined planes illustrated in FIG. 12. Now the end regions are not bent to form the flanges 10, and instead they are simply overlapped and joined to each other as illustrated in FIG. 12.
  • FIGS. 13 and 14 show metallic networks 18 composed of reinforcing elements 17 in the form of reinforcing rods or wires, and these networks may, for ex ample, be welded directly to the elongated uninterrupted sheet portions 4. Then these networks are embedded in the concrete slabs 19 and 20 illustrated in FIGS.
  • the expanded metal sheet of the invention has free end portions 22 extending beyond the concrete slabs 19 and 20.
  • the ends of the expanded metal sheet may be provided with the flanges 21 shown in FIG. 13, so that adjoining structural units of the invention can have these flanges embedded in concrete for the purpose of integrally uniting a series of structural units to form a complete floor assembly.
  • the free end portions 22 enable the structural unit of the invention to be joined with a supporting means.
  • FIG. 15 diagrammatically illustrates how the free end portions 22 are embedded in an elongated concrete beam 23 which forms part of a building structure.
  • the beam 23 serves to support the structural units of the invention.
  • the beam 23 serves to support the structural units of the invention.
  • the successive structural units are joined at the end flanges 21, there wo;; be spaces 24, illustrated in FIG. 15, and these spaces will be filled with concrete so that in this way it is possible to form a continuous floor.
  • any conduits whether for gas, electric conductors, water, or the like, and it is is equally possible to situate very readily in the space between the slabs 19 and 20 suitable insulation, sound or vibration-deadening materials, etc.
  • FIG. 16 shows a wall 25 which is formed with an opening through which the expanded metal structure extends.
  • the expanded metal sheet of the invention is first placed through the opening of the wall 25, and then the reinforced concrete slabs are joined with the parts of the expanded metal sheet which extend beyond the wall 25.
  • the opening in the wall 25 is first filled with concrete 26, so that in this way the expanded metal sheet structure is rigidly fixed with the wall 25.
  • the structural unit of the invention has sufficient strength so that it can extend freely from the wall 25 forming a cantilever structure which is capable of supporting large loads and forming, for example, a balcony.
  • FIG. 17 illustrates an arrangement where the metal sheets have the configuration shown in FIG. 5.
  • these expanded metal sheets may be joined to each other in the manner shown in any one of FIGS. -12, and the reinforced concrete slabs l9 and 20 are joined to the expanded metal sheets in the manner shown in FIG. 17, so that with this structure also it is possible to provide large units of any desired area.
  • the weld 14 is used to join the successive expanded metal sheets to each other.
  • FIG. 18 the structure of FIGS. 13 and 14 is joined with an elongated metal beam 27 which has the hollow C-shaped configuration shown in FIG. 18.
  • the free end portions 22 will become situated within the supporting beam 27 next to the upper and lower flanges thereof, and suitable lines of welding 28 are used in this case for welding the projecting ends 22 of the expanded metal sheet directly to the supporting beam 27.
  • the expanded metal sheet either by stretching the latter and drawing the narrow portions 7 while they are cold or while they are hot, or the operation can be one which is partly cold and partly hot.
  • the elongated cutouts 2 can have many different forms and can simply take the form of removed material from the body of the sheet 1, either in the form of punched openings, as pointed out above, or by engraving or thinning of the sheet along predetermined areas or lines, so as to provide the sheet with weakened portions which will form the openings when the sheet is stretched transversely of these weakened portions.
  • the stretching of the sheet transversely of the cutouts can take place either simultaneously at all of the cutouts or successively at the successive pairs of rows of adjoining cutouts, the stretching preferably being carried out in such a way that the elongated uninterrupted portions 4 cannot contract longitudinally. In all cases the stretching operation is terminated conveniently before the area at predetermined locations of the sheet becomes too small.
  • a structure as shown in FIG. 5 can also be used without the structural means joined to the opposed elongated portions 4 at the crests of the waves.
  • a structure as shown in FIG. 5 can directly form a structural load-bearing element utilized directly as a reticulated three-dimensional roof-supporting structure, or some part of a static building structure, although for this purpose it is also convenient to join to the expanded metal sheet the beams 12 and 13 as shown in FIGS. 8 and 9.
  • the thickness of the structural assembly an be doubled by placing the expanded metal sheets as shown in FIG. 5 one on top of the other with the lower elongated uninterrupted portions 4 of the upper sheet joined, as by welding, for example, to the upper elongated uninterrupted portions for the lower sheet.
  • the thickness of the entire assembly can be regulated as desired.
  • a structural unit comprising an expanded metal sheet of substantially wave-shaped configuration having a first set of elongated uninterrupted sheet portions forming crests situated along their entire lengths at one plane and a second set of elongated uninterrupted sheet portions parallel to and alternating with said first set and forming crests situated along their entire lengths at another plane spaced from and substantially parallel to said one plane, and between the latter sheet portions elongated apertured substantially flat sheet portions which connect said elongated uninterrupted sheet portions to each other and which are oppositely inclined one with respect to the next and sequentially situated respectively in oppositely inclined planes, and each of which is formed with a row of triangular openings which are located in one of said inclined planes and which are oppositely oriented one with respect to the next and separated by inclined relatively narrow, longitudinally drawn sheet portions which are of substantially U- shaped cross section and which are situated in the same plane as the triangular openings which they separate.
  • the structural unit of claim 5 including a plurality of the expanded metal sheets which are located one next to the other and which are fixed to each other.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Panels For Use In Building Construction (AREA)
US00195946A 1970-11-06 1971-11-05 Structural unit having an expanded metal sheet and method for manufacturing the structural unit Expired - Lifetime US3763616A (en)

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IT4011870 1970-11-06
IT4011670 1970-11-06
IT4011770 1970-11-06

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Cited By (15)

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WO1992013658A1 (en) * 1991-02-08 1992-08-20 Tage Steffensen Method for making a supporting crossbar construction and a crossbar construction made according to the method
WO1997006321A1 (en) * 1995-08-08 1997-02-20 Chicago Metallic Continental Nv Various methods for making a profile for supporting ceiling plates and for the thus obtained profiles
WO1997009496A1 (en) * 1995-09-07 1997-03-13 Mikael Hellsten Aktiebolag Beam
EP0815332A2 (en) * 1995-03-17 1998-01-07 McGregor, Duncan Clift A method of forming a structural panel
WO1998022674A1 (en) * 1996-11-20 1998-05-28 Laserplus Oy Method for manufacturing a lattice structure
US5896635A (en) * 1997-05-27 1999-04-27 Cominco Ltd. Apparatus for forming expanded mesh
US6330777B1 (en) 1999-07-20 2001-12-18 Tcw Technologies Inc. Three dimensional metal structural assembly and production method
WO2005123297A1 (en) * 2004-06-17 2005-12-29 Dallan S.P.A. Method for producing expanded metal profiles and profile produced by the method
WO2005123298A1 (en) * 2004-06-17 2005-12-29 Dallan S.P.A. Method for producing expanded metal profiles and profile produced by the method
US20070237923A1 (en) * 2006-04-07 2007-10-11 Dorsy Sean C Expandable panel structures and methods of manufacturing the same
US20070256387A1 (en) * 2006-04-07 2007-11-08 Dorsy Sean C Multi-tiered, expandable panel structures and methods of manufacturing the same
US20110056886A1 (en) * 2009-06-26 2011-03-10 Nicholas De Luca Oil spill recovery process
WO2011151565A1 (fr) * 2010-06-03 2011-12-08 Td Structure Armature de construction tridimensionnelle, procede de realisation d'une telle armature et machine de mise en œuvre du procede
US8486507B2 (en) 2009-06-26 2013-07-16 Cryovac, Inc. Expandable foam sheet that locks in expanded configuration
US20170144210A1 (en) * 2003-08-05 2017-05-25 Jeffrey A. Anderson Method of manufacturing a metal framing member

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WO1992013658A1 (en) * 1991-02-08 1992-08-20 Tage Steffensen Method for making a supporting crossbar construction and a crossbar construction made according to the method
US5845379A (en) * 1991-02-08 1998-12-08 Steffensen; Tage Method for making a supporting crossbar construction and a crossbar construction made according to the method
EP0815332A4 (en) * 1995-03-17 1999-02-03 Duncan Clift Mcgregor PROCESS FOR SHAPING A BUILDING BOARD
EP0815332A2 (en) * 1995-03-17 1998-01-07 McGregor, Duncan Clift A method of forming a structural panel
WO1997006321A1 (en) * 1995-08-08 1997-02-20 Chicago Metallic Continental Nv Various methods for making a profile for supporting ceiling plates and for the thus obtained profiles
WO1997009496A1 (en) * 1995-09-07 1997-03-13 Mikael Hellsten Aktiebolag Beam
WO1998022674A1 (en) * 1996-11-20 1998-05-28 Laserplus Oy Method for manufacturing a lattice structure
US5896635A (en) * 1997-05-27 1999-04-27 Cominco Ltd. Apparatus for forming expanded mesh
US6330777B1 (en) 1999-07-20 2001-12-18 Tcw Technologies Inc. Three dimensional metal structural assembly and production method
US20170144210A1 (en) * 2003-08-05 2017-05-25 Jeffrey A. Anderson Method of manufacturing a metal framing member
WO2005123297A1 (en) * 2004-06-17 2005-12-29 Dallan S.P.A. Method for producing expanded metal profiles and profile produced by the method
WO2005123298A1 (en) * 2004-06-17 2005-12-29 Dallan S.P.A. Method for producing expanded metal profiles and profile produced by the method
US20070137013A1 (en) * 2004-06-17 2007-06-21 Sergio Dallan Method for producing expanded metal profiles and profile produced by the method
US7934300B2 (en) 2004-06-17 2011-05-03 Dallan S.P.A. Method for producing expanded metal profiles
EA010050B1 (ru) * 2004-06-17 2008-06-30 ДАЛЛАН С.п.А. Способ изготовления гнутых металлических профилей и профиль, изготавливаемый данным способом
AU2005254198B2 (en) * 2004-06-17 2009-07-30 Dallan S.P.A. Method for producing expanded metal profiles and profile produced by the method
US20070237923A1 (en) * 2006-04-07 2007-10-11 Dorsy Sean C Expandable panel structures and methods of manufacturing the same
US7803467B2 (en) 2006-04-07 2010-09-28 Dorsy Sean C Multi-tiered, expandable panel structures and methods of manufacturing the same
US20110011025A1 (en) * 2006-04-07 2011-01-20 Dorsy Sean C Expandable Panel Structures And Methods Of Manufacturing The Same
US7803466B2 (en) 2006-04-07 2010-09-28 Dorsy Sean C Expandable panel structures and methods of manufacturing the same
US8084141B2 (en) 2006-04-07 2011-12-27 Dorsy Sean C Expandable panel structures and methods of manufacturing the same
US20070256387A1 (en) * 2006-04-07 2007-11-08 Dorsy Sean C Multi-tiered, expandable panel structures and methods of manufacturing the same
US20110056886A1 (en) * 2009-06-26 2011-03-10 Nicholas De Luca Oil spill recovery process
US8486507B2 (en) 2009-06-26 2013-07-16 Cryovac, Inc. Expandable foam sheet that locks in expanded configuration
WO2011151565A1 (fr) * 2010-06-03 2011-12-08 Td Structure Armature de construction tridimensionnelle, procede de realisation d'une telle armature et machine de mise en œuvre du procede
FR2960895A1 (fr) * 2010-06-03 2011-12-09 Td Structure Armature de construction tridimensionnelle, procede pour la realisation d'une telle armature et une machine de mise en oeuvre du procede

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DE2155100A1 (de) 1972-05-10
FR2112507B3 ( ) 1974-06-21
FR2112507A3 ( ) 1972-06-16

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