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EP0141318A2 - Sheet metal structural girder with a vaulted, transversely profiled upper flange - Google Patents

Sheet metal structural girder with a vaulted, transversely profiled upper flange Download PDF

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Publication number
EP0141318A2
EP0141318A2 EP84112288A EP84112288A EP0141318A2 EP 0141318 A2 EP0141318 A2 EP 0141318A2 EP 84112288 A EP84112288 A EP 84112288A EP 84112288 A EP84112288 A EP 84112288A EP 0141318 A2 EP0141318 A2 EP 0141318A2
Authority
EP
European Patent Office
Prior art keywords
sheet metal
upper flange
metal structural
vaulted
upper chord
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Withdrawn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
EP84112288A
Other languages
German (de)
French (fr)
Other versions
EP0141318A3 (en
Inventor
Heinz Rosenstock
Georg Thierauf
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.)
ThyssenKrupp Technologies AG
Original Assignee
Thyssen Industrie AG
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 Thyssen Industrie AG filed Critical Thyssen Industrie AG
Publication of EP0141318A2 publication Critical patent/EP0141318A2/en
Publication of EP0141318A3 publication Critical patent/EP0141318A3/en
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
    • E04D3/24—Roof covering by making use of flat or curved slabs or stiff sheets with special cross-section, e.g. with corrugations on both sides, with ribs, flanges, or the like
    • E04D3/30—Roof covering by making use of flat or curved slabs or stiff sheets with special cross-section, e.g. with corrugations on both sides, with ribs, flanges, or the like of metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/32—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure formed of corrugated or otherwise indented sheet-like material; composed of such layers with or without layers of flat 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
    • E04C3/06—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
    • 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 sheet metal profile carrier according to the preamble of the main claim.
  • a sheet metal profile carrier is known, the upper flange of which has transverse ribs (transverse beads) (patent specification DE 2616058 C2).
  • the transverse ribs of this known sheet metal profile support are designed in such a way that the web inclination is reduced with a downward load on the top chord and thus the overall height of the sheet profile support is also reduced. It is generally known that the load-bearing capacity of a sheet-metal profile beam with a trapezoidal cross-section is reduced by this load-bearing behavior. This load-bearing behavior cannot be changed with the known design of the transverse ribs.
  • the invention has for its object to provide a sheet profile support according to the preamble of claim 1, which has an improved load-bearing capacity. This object is achieved by the features given in the characterizing part of claim 1.
  • the upper belt is provided according to the invention with a convex profiling (7), so as ß in a downward load of the upper flange horizontal arise outwardly directed forces, which in its tendency, the web inclination and thus the capacity of the Blechprofiltr g gers as roofing or as Enlarge wall bracket.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Escalators And Moving Walkways (AREA)
  • Laminated Bodies (AREA)

Abstract

To increase the load-carrying capacity of sheet metal structural girders of large overall width and low dead weight, the upper flange is vaulted upwards and profiled so that, upon loading, a spreading of the webs occurs. As a result, an increase in the sustainable loading with lower deflections of the sheet metal structural girder is achieved. <IMAGE>

Description

Die Erfindung betrifft einen Blechprofilträger nach dem Oberbegriff des Hauptanspruchs. Es ist ein Blechprofilträger bekannt, dessen Obergurt Querrippen (Quersicken) aufweist (Patentschrift DE 2616058 C2). Die Querrippen dieses bekannten Blechprofilträgers sind so ausgeführt, daß sich die Stegneigung bei einer abwärts gerichteten Belastung des Obergurtes verringert und sich damit auch die Gesamthöhe des Blechprofilträgers verkleinert. Es ist allgemein bekannt, daß sich durch dieses Tragverhalten die Belastbarkeit eines Blechprofilträgers mit trapezförmigem Querschnitt verringert. Dieses Tragverhalten kann mit der bekannten Ausführung der Querrippen nicht verändert werden.The invention relates to a sheet metal profile carrier according to the preamble of the main claim. A sheet metal profile carrier is known, the upper flange of which has transverse ribs (transverse beads) (patent specification DE 2616058 C2). The transverse ribs of this known sheet metal profile support are designed in such a way that the web inclination is reduced with a downward load on the top chord and thus the overall height of the sheet profile support is also reduced. It is generally known that the load-bearing capacity of a sheet-metal profile beam with a trapezoidal cross-section is reduced by this load-bearing behavior. This load-bearing behavior cannot be changed with the known design of the transverse ribs.

Der Erfindung liegt die Aufgabe zugrunde, einen Blechprofilträger nach dem Oberbegriff des Anspruchs 1. zu schaffen, der eine verbesserte Tragwirkung aufweist. Diese Aufgabe wird durch die im kennzeichnenden Teil des Anspruchs 1. gegebenen Merkmale gelöst.The invention has for its object to provide a sheet profile support according to the preamble of claim 1, which has an improved load-bearing capacity. This object is achieved by the features given in the characterizing part of claim 1.

Der Obergurt wird erfindungsgemäß mit einer konvexen Profilierung (7) versehen, so daß bei einer abwärts gerichteten Belastung des Obergurtes horizontale, nach außen gerichtete Kräfte entstehen, welche in ihrer Tendenz die Stegneigung und damit die Belastbarkeit des Blechprofiltrggers als Dach- oder als Wandträger vergroßern.The upper belt is provided according to the invention with a convex profiling (7), so as ß in a downward load of the upper flange horizontal arise outwardly directed forces, which in its tendency, the web inclination and thus the capacity of the Blechprofiltr g gers as roofing or as Enlarge wall bracket.

Im folgenden wird die Erfindung unter Hinweis auf die Zeichnung anhand eines Ausführungsbeispiels näher erläutert. Es zeigen

  • Fig.1 eine perspektivische Ansicht einer Ausführungsform eines Blechprofilträgers; die Belastung des Obergurtes ist durch die eingetragenen Lastpfeile gekennzeichnet,
  • Fig.2 einen Querschnitt des Blechprofilträgers gemäß Linie I-I, Fig.l,
  • Fig.3 die kennzeichnenden Teile des Querschnittes in getrennter Darstellung mit Eintragung der Belastung und der Verschiebungsrichtung der Eckkanten (4),
  • Fig.4 eine AusfUhrungsmöglichkeit der Profilierung des Obergurtes in der Draufsicht und im Schnitt II-II. Durch die konvexe Formgebung des Obergurtes entstehen vertikal gerichtete Kräfte V und horizontal gerichtete Kräfte H (Fig.3), die mit der Belastung ein Gleichgewichtssystem bilden. Die horizontal gerichteten Kräfte H wirken so auf die beiden Stege ein, daß die Stegneigung vergrößert wird. Die Profilierung des Obergurtes wird so ausgeführt, daß bei den Ublichen Belastungen dieses Verformungsverhalten dominiert und daß ein Durchschlagen des Obergurtes nach unten hin mit der erforderlichen Sicherheit nicht eintritt. Durch die damit erreichte Tragwirkung ist es - in Verbindung mit den Versteifungs- sicken nach Anspruch 2. - möglich, größere Spannweiten bei geringerem Eigengewicht der Blechprofilträger zu erreichen.
The invention is explained in more detail below with reference to the drawing using an exemplary embodiment. Show it
  • 1 shows a perspective view of an embodiment of a sheet metal profile carrier; the load on the top chord is indicated by the load arrows,
  • 2 shows a cross section of the sheet metal profile support according to line II, Fig.l,
  • 3 the characteristic parts of the cross section in a separate representation with entry of the load and the direction of displacement of the corner edges (4),
  • 4 shows an embodiment of the profiling of the top chord in plan view and in section II-II. The convex shape of the top chord creates vertically directed forces V and horizontally directed forces H (Fig. 3), which form a balance system with the load. The horizontally directed forces H act on the two webs in such a way that the web inclination is increased. The profiling of the top chord is carried out in such a way that this deformation behavior dominates under the usual loads and that the top chord does not break down with the required certainty. By reaching structural action is - in conjunction with the stiffening - sicken claim second - possible to achieve longer spans with less dead weight of the sheet-metal profile support.

Hierzu 2 Blatt ZeichnungenWith this 2 sheets of drawings

Claims (2)

1. Rlechprofilträger für Dach- oder Wandkonstruktionen mit trapezförmigem Querschnitt, der aus einem Obergurt (1), daran anschließenden abwärts gerichteten, geneigten Stegen (2) und daran anschließenden, zum Obergurt parallelen Untergurten (3) besteht, dadurch gekennzeichnet, daß der Obergurt so profiliert ist, daß sich bei Belastung des Obergurtes in vertikaler Richtung (in Richtung der Stege) die Stegneigung durch Entstehung von horizontalen Verschiebungen der Eckkanten (4) des Obergurtes vergrößert.1. Rlechprofilträger for roof or wall structures with a trapezoidal cross-section, which consists of an upper chord (1), adjoining downward, inclined webs (2) and adjoining lower chords parallel to the upper chord (3), characterized in that the upper chord It is profiled that when the upper chord is loaded in the vertical direction (in the direction of the webs), the web inclination increases due to the horizontal displacements of the corner edges (4) of the upper chord. 2. Blechprofilträger nach Anspruch 1., dadurch gekennzeichnet, daß einer oder mehrere (oder alle) der kennzeichnenden Ouerschnittsteile (Obergurt, Stege, Untergurte) durchlaufende Versteifungssicken (5,6) aufweisen.2. Profile support according to claim 1, characterized in that one or more (or all) of the characteristic Ouerschnittsteile (upper flange, webs, lower chords) have continuous stiffening beads (5,6).
EP84112288A 1983-10-29 1984-10-12 Sheet metal structural girder with a vaulted, transversely profiled upper flange Withdrawn EP0141318A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3339445 1983-10-29
DE19833339445 DE3339445A1 (en) 1983-10-29 1983-10-29 SHEET PROFILE CARRIER WITH CURVED, CROSS-PROFILED UPPER BELT

Publications (2)

Publication Number Publication Date
EP0141318A2 true EP0141318A2 (en) 1985-05-15
EP0141318A3 EP0141318A3 (en) 1986-12-17

Family

ID=6213151

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84112288A Withdrawn EP0141318A3 (en) 1983-10-29 1984-10-12 Sheet metal structural girder with a vaulted, transversely profiled upper flange

Country Status (3)

Country Link
EP (1) EP0141318A3 (en)
DE (1) DE3339445A1 (en)
DK (1) DK505184A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987004747A1 (en) * 1986-01-29 1987-08-13 Ahlsell Profil Aktiebolag Sheet metal section, especially for roof, wall or floor structures
FR2703380A1 (en) * 1993-03-31 1994-10-07 Dubosc Eric Sheet-metal roof pan equipped with an integrated snow trap device
GB2536952A (en) * 2015-04-02 2016-10-05 Gbt Design Services Ltd Support frame member and floor support frame
US10479654B2 (en) 2014-05-26 2019-11-19 Hans Künz GmbH Crane girder for a crane

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR79020E (en) * 1961-01-11 1962-10-13 Self-supporting formwork for ribbed floors
FR1568010A (en) * 1968-01-02 1969-05-23
DE2616058A1 (en) * 1975-04-28 1976-11-11 Norrbottens Jaernverk Ab SHEET PROFILE

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR79020E (en) * 1961-01-11 1962-10-13 Self-supporting formwork for ribbed floors
FR1568010A (en) * 1968-01-02 1969-05-23
DE2616058A1 (en) * 1975-04-28 1976-11-11 Norrbottens Jaernverk Ab SHEET PROFILE

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987004747A1 (en) * 1986-01-29 1987-08-13 Ahlsell Profil Aktiebolag Sheet metal section, especially for roof, wall or floor structures
FR2703380A1 (en) * 1993-03-31 1994-10-07 Dubosc Eric Sheet-metal roof pan equipped with an integrated snow trap device
US10479654B2 (en) 2014-05-26 2019-11-19 Hans Künz GmbH Crane girder for a crane
GB2536952A (en) * 2015-04-02 2016-10-05 Gbt Design Services Ltd Support frame member and floor support frame

Also Published As

Publication number Publication date
DK505184D0 (en) 1984-10-23
EP0141318A3 (en) 1986-12-17
DE3339445A1 (en) 1985-05-09
DK505184A (en) 1985-04-30

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Inventor name: THIERAUF, GEORG

Inventor name: ROSENSTOCK, HEINZ