Classifications

• • 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
  • E04C3/06—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web
  • E04C3/07—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web at least partly of bent or otherwise deformed strip- or sheet-like material
• • 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
  • B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
  • B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
  • B21D35/005—Processes combined with methods covered by groups B21D1/00 - B21D31/00 characterized by the material of the blank or the workpiece
  • B21D35/006—Blanks having varying thickness, e.g. tailored blanks
• • 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
  • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
  • B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
  • B21D5/08—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles making use of forming-rollers
• • 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
  • E04C2003/0473—U- or C-shaped

Definitions

• the invention relates to a stud for a stud frame for a wall construction to be produced in dry construction.
• the invention relates to a wall construction with sound protection.
• metal studs standard C- or U- studs
• studs made from thicker metal sheets are used, which also means that they are stiffer and show stronger acoustic coupling. A better static performance thus brings about poorer acoustic properties.
• the invention is therefore based on the object of disclosing a stud of the type mentioned in the introduction, which allows sufficient static performance for higher than usual room height constructions and at the same time sufficient sound protection.
• This object is achieved by a metal stud, the material (e.g. a metal sheet, preferably cold rolled) of which is thicker in parts, i.e. sections or parts have a higher material thickness.
• the stud material in the region of the web, at least in a section of the web width, is thicker than in the region of the flanges.
• the cross-section of the stud comprising the web and the flanges shows at least a U-shape, preferably a C-shape.
• the studs are used to construct a stud frame, to which at least one layer of building boards, preferably based on a cementitious, more preferably based on a gypsum material, is affixed.
• the present invention demonstrates that it is possible to meet static requirements essentially over the thickness of the material in the web region, particularly when the decisive failure criterion under load is “torsional buckling”. With the features mentioned above, no serious losses in the sound protection have to be accepted, since the material thickness of the flanges remains relatively thin, in any case thinner than parts of the web. The lower material thickness of the flanges preserves the sound protection properties of the (standard) stud.
• the reinforced web also has acoustic advantages, apart from its static function, since it is less prone to natural oscillations. Natural oscillations can also lead to acoustic problems. But, in the case of a thicker or stronger web, natural oscillations can be favorably detuned with respect to the natural frequencies of the bending modes of the web. This is particularly advantageous for larger web widths. For example, according to the invention, web widths of not only 50 mm, 75 mm and 100 mm but, for example, 150 mm can also be used. These dimensions can vary internationally, so that the values given are to be understood as an example of orders of magnitude without limiting the invention to specific values.
• Typical material thicknesses for the flange regions are, for example, between 0.45 mm and about 0.75 mm, preferably about 0.6 mm. Material thicknesses for the thick web section may be about 1.5 mm to about 2.5 mm, preferably about 2.0 mm.
• the thick web section preferably has at least twice the material thickness of the rest of the stud, particularly the flanges. According to a development of the invention, the thick section of the web can be made of multiple material layers. Preferably, at least one further material layer can be attached to the web material for this purpose.
• the fastening can be effected by a friction-lock and/or form-fitting method, for example riveting, welding, gluing, clinching etc.
• the stud as well as the reinforcement is made from a metal sheet.
• all sections of the stud consist of one layer, i.e. the web is made from one piece of material, which means it has only one layer albeit the thickness of the layer varies. This can be achieved by rolling out the thicker section differently, for example with less pressure, than the remainder of the stud. This means that the remaining regions of the stud have a different material thickness than the web. Preferably, they are thinner in cross-section. In this way a stud, according to this development, can be manufactured relatively easily, cost-effectively and with precision.
• the web comprises a thick section, which is situated centrally within the overall web when looking at the cross-section of a stud orthogonally to its length, framed by at least one thin edge sections, the width of the edge section being > 0.1 mm and ⁇ 6 mm.
• the edge sections border on the respective flange.
• the reinforcement or thickening of the web ends about 4 mm to 5 mm, preferably, for example, 4.4 mm before the transition of the web to the flange (i.e. the edge section).
• the transition region between the web and the flange including the edge section of the web, has elastic properties.
• the edge section of the web, the transition edge itself or the flange can be modified for more elasticity. This modification can be present additionally to the differing material thicknesses of web and flange.
• edge section has a material deformation. This can be, for example, a beading that extends over the entire length of the stud or sections thereof.
• the edge section has a material deformation, especially a weakening.
• This can be a material weakening, for example, in the region of the beading.
• the edge section provides one or a plurality of recesses in the web, particularly the edge section of the web, or the edge section of the flange.
• these recesses could be fashioned as slots or holes extending over longitudinal sections of the stud.
• Fig. 1 an embodiment of a stud according to the invention in a partially sectioned front view.
• a cross-sectional profile of a stud is shown enlarged in order to indicate the different material thicknesses in the different regions.
• the cutaway view of the stud is shown interrupted over its width by dash-dotted lines 1.
• the cross-section of the stud has essentially a C-shape, which is formed from a web 2, two flanges 3 adjoining it and end regions 4 arranged at an angle to the flanges.
• the central web section 5 of the web 2 has a higher material thickness than the rest of the stud. This can be achieved by rolling out this web section 5 less intensely and less thinly before angling the flanges 3 and the end regions 4.
• the central web section 5 can be formed by providing a plurality of layers in this region of the web 2, preferably two layers. Additional strips of material can be applied to the web 2 and be joined to the web 2, for example by gluing, welding or riveting.
• the thickening of the web section 5 ends near the transition or the edge 7 to the respective flange 3.
• the respective edge section 6 is more elastic than the central web section 5.
• the flanges 3 are not only more elastic, but also elastically connected to the web 2. As a result, they can absorb acoustic vibrations of the attached building boards without passing these vibrations on to the web 2.
• the transmission of the acoustic vibrations through the web 2 from one side of the wall to the other is effectively prevented or at least strongly reduced.
• the web 2 is compromised by natural oscillations which negatively influence the sound insulation.
• the flanges 3 can be designed more elastically by material recesses, for example, by slots in the material.
• the edge sections 6 of the web 2 could also be designed more elastically.
• This elastic design is not necessarily limited to the edge sections 6 of the web 2, but can additionally or alternatively be realized in the edge sections of the flanges 3 near the transition edge 7.
• the edge sections 6 of the web 2 and/or the edge sections of the flanges 3 could be designed elastically, if, for example, the thickening of the web 2 should extend out to the respective transition edge 7 for production-related reasons.

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Publications (1)

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• 2018
  • 2018-08-02 EP EP18759253.0A patent/EP3830358A1/de active Pending
  • 2018-08-02 JP JP2020572842A patent/JP7254838B2/ja active Active
  • 2018-08-02 WO PCT/EP2018/000382 patent/WO2020025095A1/en active Application Filing
  • 2018-08-02 MX MX2021001197A patent/MX2021001197A/es unknown
• 2019
  • 2019-07-31 AR ARP190102170A patent/AR115880A1/es active IP Right Grant

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