EP4006251A1 - Verstärktes strukturelement - Google Patents

Verstärktes strukturelement Download PDF

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Publication number
EP4006251A1
EP4006251A1 EP21197227.8A EP21197227A EP4006251A1 EP 4006251 A1 EP4006251 A1 EP 4006251A1 EP 21197227 A EP21197227 A EP 21197227A EP 4006251 A1 EP4006251 A1 EP 4006251A1
Authority
EP
European Patent Office
Prior art keywords
section
structural element
central body
wing
element according
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.)
Withdrawn
Application number
EP21197227.8A
Other languages
English (en)
French (fr)
Inventor
Enrico BENASCIUTTI
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.)
Manni Green Tech SRL
Original Assignee
Manni Green Tech SRL
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 Manni Green Tech SRL filed Critical Manni Green Tech SRL
Publication of EP4006251A1 publication Critical patent/EP4006251A1/de
Withdrawn legal-status Critical Current

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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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/08—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders
    • E04C3/09—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders at least partly of bent or otherwise deformed strip- or sheet-like material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • 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
    • E04C2003/0443—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
    • E04C2003/0452—H- or I-shaped

Definitions

  • the present invention relates to a reinforced structural element that can be used for the construction of building structures.
  • the present invention relates to a reinforced structural element constituting a beam.
  • a double “T” beam as it is known, comprises a first and a second wing, which are spaced apart and parallel to each other and mutually connected through a central body called "core".
  • WO2019123388A1 concerns a lightweight structural element shaped as a double "T" beam with two wings spaced apart and parallel to each other, and a central body, the core, which extends between the first wing and the second wing, thereby connecting them.
  • This structural element when used in combination with other elements in the construction of building structures, requires high mechanical strength and improved load bearing.
  • the points of the structural element that are most subject to mechanical stress are the wings and the connection points between the wings and the core of the beam.
  • the lightweight structural element discussed in WO2019123388A1 could have very heavy load and strength limits, if used in the construction of building structures.
  • the main object of the present invention is to improve the state of the art concerning the structural elements that can be used in the construction of building structures.
  • Another object of the present invention is to provide a structural element that can be used in the construction of building structures capable of supporting loads higher than the solutions in accordance with the state of the art as well as providing a high mechanical resistance to stress.
  • a further object of the present invention is to provide a reinforced structural element of practical use and construction, in the context of a flexible use solution that facilitates the production of various formats, if desired with overall dimensions that are different from each other, according to specific needs of use.
  • Another object of the present invention is to provide a structural element capable of replacing the C-shaped press-folded steel profiles currently used as covering beams or ceilings, providing the same characteristics of lightness and also being free from torsion problems occurring with C-shaped profiles.
  • a structural element which can be used for the construction of a building structure according to claim 1.
  • the structural element 1 is basically configured as a double "T" beam.
  • the structural element can be obtained by profiling or press bending of a sheet strip, for example galvanized, with small thickness, if desired between 1 and 10 mm or better between 3 and 7 mm, which sheet is therefore obtained in a single piece.
  • the sheet strip has a first wing 2, a second wing 3 spaced apart and substantially parallel to each other, and a central body or core 4 which extends between the first wing 2 and the second wing 3, connecting them or in any case constituting a section of connection or continuation between wings 2, 3.
  • the central body 4 is preferably substantially orthogonal to the main extension dimension or width of the first wing 2 and of the second wing 3 and has a first surface 5 and a second surface 6 opposite each other.
  • the central body 4 essentially consists of an intermediate part of the sheet and is preferably flat.
  • This construction as a single body allows to optimize the timing necessary for the production of the structural element 1.
  • the structural element 1 can be made by bending a metal sheet, for example a metal strip, so as to configure the first wing 2, the second wing 3 and the central body 4.
  • the material of the sheet or strip can be steel with different strengths and thicknesses according to specific use requirements or even aluminum.
  • the structural element 1 can be made by means of a sheet or a strip or the like made of composite material.
  • the composite material can preferably comprise fiber material of the type comprising at least reinforcing fibers associated or embedded in a matrix.
  • the structural element 1 comprises a first dimension or height H substantially defined by the main extension dimension of the central body 4, a second dimension or width W substantially defined by the main extension dimension of the wings 2, 3 and a third dimension or length L or longitudinal development, which is orthogonal to the other two dimensions.
  • the structural element 1 has a front or cross section substantially defined in the plane identified by the first H and the second W dimension, which extends or repeats or remains constant along the longitudinal extension of the element 1 (see figure 3 ), that is the extension of the element 1 along the third dimension or length L (see figures 1 and 2 ).
  • the structural element 1 is configured in such a way that the first wing 2 and the second wing 3 each have at least one first section 2a, 3a and at least one second section 2b, 3b overlapping or side by side.
  • the first section 2a, 3a and the second section 2b, 3b are preferably flat.
  • each wing 2, 3 the first and second section are approached or rested against each other, so that the area between them has a width of less than 5 mm, even more preferably less than 2 or 1 mm, if desired with the two sections abutting one against the other or rather folded one over the other.
  • the first section 2a, 3a and the second section 2b, 3b are advantageously parallel and orthogonal to the central body 4.
  • first section 2a, 3a and the second section 2b, 3b of each wing 2, 3 are connected to each other by spot welding or also by other suitable continuous or discrete method, for example glue, screws, rivets, etcetera.
  • This connection allows to oppose, in addition to providing a solid connection between the sections 2a, 3a and 2b, 3b, phenomena of local instability of the sheet forming the profile and is useful for obtaining a wing 2, 3 of reduced thickness and consequently, a structural element 1 with a lower overall weight, while at the same time maintaining a high solidity and mechanical resistance to stresses.
  • both the first 2 and the second wing 3 also comprise a third section 2d, 3d of the sheet extending from the central body 4 and between the latter and a first end 2a1, 3a1 of the first section 2a, 3a, while the second section 2b, 3b extends from a second end 2a2, 3a2 of the first section 2a, 3a approaching the central body 4.
  • the third section 2d, 3d is substantially aligned with the second section 2b, 3b, so that each wing 2, 3 comprises in succession starting from a respective end of the central body 4, the third section 2d, 3d, the first section 2a, 3a and the second section 2b, 3b, between the first 2a, 3a and the third 2d, 3d section being provided a first connecting or continuation piece 2e, 3e, if desired curved, preferably substantially U-shaped, and between the first 2a, 3a and the second section 2b, 3b being provided a second connecting or continuation piece 2f, 3f, if desired curved, preferably substantially U-shaped.
  • the third section 2d, 3d has an extension equal to the second section 2b, 3b, while the first section 2a, 3a has an extension substantially equal to the sum of the second 2b, 3b and the third section 2d, 3d.
  • the second 2b, 3b and the third section 2d, 3d are superimposed or placed side by side with a respective first section 2a, 3a so that the area between them, i.e. between the second 2b, 3b and the third 2d, 3d, on the one hand, and the first section 2a, 3a, on the other hand, has a width less than 5 mm.
  • the width W of the structural element is defined by the width of the first section 2a, 3a or by the sum of the width of the second 2b, 3b and third section 2d, 3d.
  • the third section 2d, 3d is preferably flat.
  • the third section 2d, 3d is advantageously orthogonal to the central body 4.
  • the structural element 1 is shaped like an IPE beam, in particular an IPE 270 beam, although it is understood that the same can in any case have further configurations, in which the proportions between the wings and the central body can be different, even if they fall within the same inventive concept of the present invention.
  • the central body 4 has an extension or height between about 200 and about 300 mm, for example about 270 mm.
  • the two wings 2, 3 have an extension or width between about 100 mm and about 150 mm, for example equal to about 135 mm.
  • the sheet then comprises at least one free section or edge 2c, 3c extending from one end of one or both of the second sections 2b, 3b, which free section or edge 2c, 3c is substantially parallel and approached to at least one portion 4c of the first and/or of the second surface 5, 6 of the central body 4.
  • the free section or edge 2c, 3c is in fact folded over a portion of the first and/or second surface 5, 6 of the central body 4.
  • the free section or edge 2c, 3c is connected to the at least one portion of the first and/or second surface 5, 6 of the central body 4 by means of suitable connection means, for example by welding, one or more self-tapping screws and/or one or more rivets.
  • the free section or edge 2c, 3c is orthogonal to the second section 2b, 3b from which it extends.
  • the purpose is to stiffen the sections 2b and 3b in order to avoid local instability phenomena in these sections of the profile and to make the width completely effective and not to be partialized in the static calculation phase.
  • the free section or edge 2c, 3c does not have through openings and the same applies to the respective constraint portion 4c of the central body 4.
  • the free section or edge 2c, 3c can have an extension or height between about 5 mm and about 15 mm, if desired equal to or greater than about 10 mm.
  • connection means are preferably applied uniformly along the entire longitudinal extension of the structural element. If a weld is provided as a connection means, then it is preferably applied continuously in the direction of the length or longitudinal extension of the structural element 1.
  • connection means can also be applied discontinuously, if desired by points or areas.
  • connection means involve or are applied for a good part, at least 70%, 80% of the length of the structural element 1.
  • the structural element or rather the respective metal has each of the two wings 2, 3 which comprises, in sequence, starting from a respective end 4a, 4b of the central body or core 4:
  • the longitudinal symmetry plane of the structural element 1 is defined by the height H and length L of the latter and the central body or core 4 preferably lies in it.
  • the two free sections or edges 2c, 3c thus constitute the free ends of the sheet which, following bending or appropriate shaping of the sheet, are close to or abutting with a respective portion 4c of the central body or core 4 at a respective end 4a, 4b of the latter.
  • payload we mean the maximum variable load that the structural element can withstand without breaking.
  • the central body 4 which can have different lengths L according to specific needs, can advantageously delimit a through opening 8 or a plurality of through openings 8 along its longitudinal extension.
  • the through openings 8 can be made along the sheet or the strip prior to the step of folding or forming the same, thereby simplifying its construction.
  • the structural element 1 comprises at least one aligned row of through openings 8 extending along the central body 4, for example in a central position.
  • the structural element 1 can comprise two or more rows of through openings 8 which extend along the central body 4.
  • the through opening 8 or each of the through openings 8 is delimited along its entire perimeter by a raised edge 9 which extends from one side of the central body 4, outside the first surface 5 or the second surface 6 and results resting on it.
  • the raised edge 9 is folded on itself acting as a stiffening element for the portion of the central body 4 at the through opening 8.
  • the raised edge 9 of all the through openings 8 to be found along the central body 4 can protrude from the same side of the central body 4 itself, i.e. from the first surface 5 or from the second surface 6.
  • some through openings 8 may have the respective raised edge 9 which protrudes from the first surface 5 while other through openings 8 may have the respective raised edge 9 which protrudes from the second surface 6.
  • the raised edge 9 can protrude alternately from the first surface 5 or from the second surface 6 at least every two or more through openings 8 in succession along the central body 4 or according to a distribution any, alternating or non-alternating, according to specific needs of use, without any limitation.
  • the through openings 8 can be circular or elliptical shaped.
  • the through openings 8 allow the passage of cables and utilities through the central body 4 of the structural element 1.
  • the raised edge 9 at each of the through openings 8 facilitates the sliding of a cable or a utility through the central body 4, preventing unwanted jamming from occurring due to the presence of an edge pointy or sharp.
  • the structural element may not have through openings 8 (see in particular figure 1 ).
  • connection of the first section 2a, 3a with the second section 2b, 3b by spot welding allows to obtain a very compact structural element 1.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Golf Clubs (AREA)
  • Laminated Bodies (AREA)
  • Rod-Shaped Construction Members (AREA)
EP21197227.8A 2020-11-27 2021-09-16 Verstärktes strukturelement Withdrawn EP4006251A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102020000028835A IT202000028835A1 (it) 2020-11-27 2020-11-27 Elemento strutturale rinforzato

Publications (1)

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EP4006251A1 true EP4006251A1 (de) 2022-06-01

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EP21197227.8A Withdrawn EP4006251A1 (de) 2020-11-27 2021-09-16 Verstärktes strukturelement

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IT (1) IT202000028835A1 (de)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2065378A (en) * 1935-12-13 1936-12-22 Fred E Kling Structural shape
GB561505A (en) * 1942-08-18 1944-05-23 Mills Scaffold Co Ltd Improvements in or relating to metal constructional members
US2384849A (en) * 1943-06-23 1945-09-18 Nat Steel Corp Structural member
DE2459421A1 (de) * 1974-12-16 1976-06-24 Galler Kg Kaltgewalzter profiltraeger aus stahlblech
WO1999038416A1 (de) * 1998-01-30 1999-08-05 Tegometall (International) Ag Regaltraverse
WO2000034599A1 (en) * 1997-05-23 2000-06-15 Roger Ericsson Lightweight i-beam and lightweight building unit
WO2019123388A1 (en) 2017-12-22 2019-06-27 Manni Green Tech S.R.L. Frame structure for walls

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2065378A (en) * 1935-12-13 1936-12-22 Fred E Kling Structural shape
GB561505A (en) * 1942-08-18 1944-05-23 Mills Scaffold Co Ltd Improvements in or relating to metal constructional members
US2384849A (en) * 1943-06-23 1945-09-18 Nat Steel Corp Structural member
DE2459421A1 (de) * 1974-12-16 1976-06-24 Galler Kg Kaltgewalzter profiltraeger aus stahlblech
WO2000034599A1 (en) * 1997-05-23 2000-06-15 Roger Ericsson Lightweight i-beam and lightweight building unit
WO1999038416A1 (de) * 1998-01-30 1999-08-05 Tegometall (International) Ag Regaltraverse
WO2019123388A1 (en) 2017-12-22 2019-06-27 Manni Green Tech S.R.L. Frame structure for walls

Also Published As

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