EP0596207A1 - Sheet metal, preferably cold rolled section for the construction of supporting frameworks, platforms or the like - Google Patents

Sheet metal, preferably cold rolled section for the construction of supporting frameworks, platforms or the like Download PDF

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Publication number
EP0596207A1
EP0596207A1 EP93113383A EP93113383A EP0596207A1 EP 0596207 A1 EP0596207 A1 EP 0596207A1 EP 93113383 A EP93113383 A EP 93113383A EP 93113383 A EP93113383 A EP 93113383A EP 0596207 A1 EP0596207 A1 EP 0596207A1
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EP
European Patent Office
Prior art keywords
sheet metal
profile
web
metal profile
height
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Withdrawn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
EP93113383A
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German (de)
French (fr)
Inventor
Rudolf Richard Hollander
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Nedcon BV
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Nedcon BV
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    • 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
    • E04C2003/0413—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 being built up from several parts
    • 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
    • E04C2003/043—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 hollow cross-section comprising at least one enclosed cavity
    • 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
    • E04C2003/0452—H- or I-shaped
    • E04C2003/0456—H- or I-shaped hollow flanged, i.e. "dogbone" metal beams
    • 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
    • E04C2003/0465—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 square- or rectangular-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
    • E04C2003/0404—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, preferably in a cold-rolled version, for creating support structures, stages and the like.
  • Cold rolled sheet metal profiles of this type are used in different heights, thicknesses and lengths primarily in the field of warehouse technology. Here they serve e.g. as a support beam for pallet racking systems. They are also used as main and secondary beams in the creation of intermediate stage constructions. In this case, a bar grid is first assembled from the sheet metal profiles in question, on which the stage plates are then placed. In this way, large stage constructions for storage purposes can be erected in a relatively short time.
  • the invention has for its object to provide a sheet metal profile for creating support structures, platforms and the like. With improved torsional behavior, which moreover enables a wider range of applications in practical use than the known sheet metal profiles.
  • a sheet metal profile of the type mentioned is proposed, with an overall cross-section inscribed in a rectangle with a height which clearly exceeds the width, with the narrow sides which delimit the top and bottom and which extend over its entire width and which have a multi-angled edge Web are connected to each other, the web, starting from two opposite edges of the narrow sides, initially extending a short distance along one broad side of the rectangle circumscribing the profile, the web then bends obliquely at an obtuse angle to the other broad side, where the web finally forms a flat middle piece arranged exactly in the plane of the other broad side.
  • the sheet profile also has the advantage of being particularly easy to connect to other structural parts, and in particular an identical, symmetrically positioned sheet profile. In practical use, the sheet profile is therefore available for a wide range of applications.
  • the sheet metal profile is shaped symmetrically with respect to the plane defined by half the height. In this way, the advantages of the sheet metal profile are achieved in any installation position.
  • connection with other structural parts and in particular with an identically designed and symmetrically attachable sheet profile is significantly improved if, according to a preferred embodiment of the invention, on those two opposite edges of the narrow sides from which the web does not extend, short anglings oriented at right angles to the narrow sides are molded on, which lie exactly in the plane of the center piece.
  • the sheet profile has a particularly favorable torsional behavior if the height-width ratio is between 2.5: 1 to 6: 1.
  • the ratio of the height of the profile to the height of the center piece is from 1.5: 1 to 2.5: 1.
  • the center piece has openings at regular intervals.
  • the weight of the sheet metal profile can be reduced considerably, so that it is also suitable for the production of lightweight structures.
  • the middle piece is above and below it Provide lines of symmetry with rows of holes. These rows of holes allow two identical sheet metal profiles of the type mentioned to be connected symmetrically to one another in order to obtain a high-strength beam in which the center of thrust and the line of action of the load lie exactly in the same plane. In this case, for optimal connection technology, it is advantageous if the distance between the top and bottom row of holes is 55 to 75% of the height of the center piece.
  • Fig. 1 shows a closed, symmetrical profile, as is known in various designs from the prior art.
  • the decisive advantage of such a profile is that the shear center SM of the profile is exactly on the line of action WL of a load acting perpendicular to the profile.
  • Such a profile is free of torsional moments. This applies in the same way to the profile, which also belongs to the prior art, in the form of a double T according to FIG. 2.
  • Fig. 6 shows that this profile is inscribed in a rectangle R, which has a significantly greater height than width.
  • the narrow sides of the rectangle R coincide with the upper narrow side 1 and the lower narrow side 2 of the profile.
  • Short bends 5, 6 are formed at right angles on two opposite edges 3, 4 of the narrow sides 1, 2. These bends 5, 6 are located in the plane of one of the broad sides of the rectangle R and are short compared to the height of the profile.
  • the edge 7, 8 respectively opposite the edges 3, 4 of the upper and lower narrow sides 1, 2 forms the transition to a connecting piece 9, 10, each of these connecting pieces 9, 10 being located in the plane of the rectangle R defined above.
  • the upper narrow side 1 and the lower narrow side 2 therefore merge into the angled portions 5 and 6 on one side, and into the connecting piece 9 and 10, which is also angled at right angles, on the other side.
  • the connecting pieces 9, 10 are part of a multi-angled web 11, which connects the upper narrow side 1 to the lower narrow side 2.
  • This web 11 includes inclined pieces 12, 13 which connect to the respective connecting piece 9, 10.
  • the transition between the connecting pieces 9, 10 and the respective inclined pieces 12, 13 is obtuse, as can be clearly seen in FIGS. 5 to 7.
  • the length of the inclined pieces 12, 13 is such that they extend to the opposite, broad side of the rectangle R, that is to say to the plane in which the bends 5, 6 are also located. There, the web 11 bends again at an obtuse angle, resulting in a longer, completely flat center piece 14.
  • Fig. 7 also shows that the connection of the two profiles via screw connections 15 in Area of the center pieces 14 is carried out.
  • FIGS. 5 and 6 show that the middle piece 14 has rows of holes 16 on both sides of the axis of symmetry S of the profile, which enable the screw connections 15 to be pushed through.
  • the distance between the upper and lower row of holes 16 is 55 to 75% of the height H of the middle piece 14.
  • the profile formed from a piece of sheet metal has a height-width ratio of approximately 4: 1 in the exemplary embodiment.
  • the ratio of the height of the profile to the height H of the middle piece 14 is approximately 1.85: 1.
  • the center piece 14 is provided with larger openings 17 at regular intervals.
  • FIG. 6 shows the position of the shear center SM in comparison to the line of action WL of the load in a sheet metal profile according to the invention. It can be seen that the special design of this sheet profile enables the center of thrust SM and the line of action WL to be brought close to one another, with it being an additional advantage that the center of thrust SM of this sheet profile lies approximately in the middle of the profile cross section.

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Abstract

The invention proposes a sheet-metal profile which, preferably of cold-rolled configuration, serves to erect load-bearing frameworks, platforms and the like. The sheet-metal profile has a cross-section which, as a whole, fits into a rectangle (R), the width substantially exceeding the height. The sheet-metal profile is closed off at the top and bottom by narrow sides (1, 2) which extend over the entire width of the profile and are connected to one another via a web (11) which is angled off a number of times. Starting from two mutually opposite edges (7, 8) of the narrow sides, the web (11) extends first of all some way along one broad side of the rectangle (R) enclosing the profile. Subsequently, the web (11) bends off obliquely at an obtuse angle to the opposite, other broad side, where the web (11) finally forms a flat centre piece (14) arranged precisely in the plane of the other broad side. Such a sheet-metal profile has improved torsional behaviour and, in practice, permits a wider application range than the known sheet-metal profiles. <IMAGE>

Description

Die Erfindung betrifft ein Blechprofil, vorzugsweise in kaltgewalzter Ausführung, zum Erstellen von Traggerüsten, Bühnen und dgl.The invention relates to a sheet metal profile, preferably in a cold-rolled version, for creating support structures, stages and the like.

Kaltgewalzte Blechprofile dieser Art werden in unterschiedlichen Höhen, Dicken und Längen in erster Linie im Bereich der Lagertechnik verwendet. Hier dienen sie z.B. als Tragbalken bei Palettenregalanlagen. Ferner finden sie bei der Erstellung von Zwischenbühnenkonstruktionen als Haupt- und Sekundärträger Verwendung. In diesem Fall wird aus den betreffenden Blechprofilen zunächst ein Balkenraster zusammengesetzt, auf das dann die Bühnenplatten aufgelegt werden. Auf diese Weise lassen sich in relativ kurzer Zeit große Bühnenkonstruktionen für Lagerzwecke errichten.Cold rolled sheet metal profiles of this type are used in different heights, thicknesses and lengths primarily in the field of warehouse technology. Here they serve e.g. as a support beam for pallet racking systems. They are also used as main and secondary beams in the creation of intermediate stage constructions. In this case, a bar grid is first assembled from the sheet metal profiles in question, on which the stage plates are then placed. In this way, large stage constructions for storage purposes can be erected in a relatively short time.

Zur Erstellung derartiger Konstruktionen ist es bereits bekannt, Blechprofile in Form eines Sigma zu verwenden. Hierbei handelt es sich um Profile mit einem insgesamt in ein Rechteck eingeschriebenen Querschnitt, dessen Höhe die Breite deutlich übersteigt, wobei in der Mitte dieser Profile eine Vertiefung in Form einer Sicke ausgebildet ist. Diese Vertiefung hat Bedeutung für die Fähigkeit derartiger Profile, Torsionskräfte aufzunehmen. Derartige Torsionskräfte entstehen immer dann, wenn sich der Schubmittelpunkt des Profils nicht genau auf der Wirkungslinie der Last befindet.To create such constructions, it is already known to use sheet metal profiles in the form of a sigma. These are profiles with an overall cross-section inscribed in a rectangle, the height of which clearly exceeds the width, a recess in the form of a bead being formed in the middle of these profiles. This deepening is important for the ability of such profiles to absorb torsional forces. Such torsional forces always arise when the shear center of the profile is not exactly on the line of action of the load.

Während Profile in Form eines "C" sehr große Torsionsmomente aufweisen, da die Wirkungslinien der Last und der Schubmittelpunkt des Profils sehr weit voneinander beabstandet sind, wird das Torsionsmoment bei einem Blechprofil in Form eines Sigma dadurch reduziert, daß infolge der Vertiefung der Abstand zwischen der Wirkungslinie und dem Schubmittelpunkt verringert wird. Prinzipiell ist es bei derartigen Profilen sogar möglich, den Schubmittelpunkt des Profils mit der Wirkungslinie der Last zusammenfallen zu lassen. Es besteht dann jedoch die Gefahr lokaler Ausbeulungen des Profils, die unter dem Einfluß einer stark konzentrierten Lasteinleitung, z.B. unterhalb eines Palettenklotzes, entstehen können.While profiles in the form of a "C" have very large torsional moments, since the lines of action of the load and the center of thrust of the profile are very far apart, the torsional moment in a sheet metal profile in the form of a sigma is reduced in that, as a result of the deepening, the distance between the Line of action and the thrust center is reduced. In principle, it is even possible with such profiles to let the center of thrust of the profile coincide with the line of action of the load. However, there is then the risk of local buckling of the profile, which under the influence of a highly concentrated load application, e.g. below a pallet block.

Die genannten Probleme eines Auseinanderfallens der Wirkungslinie der Last mit dem Schubmittelpunkt des Profils bestehen bei geschlossenen oder doppelsymmetrischen Profilen, wie z.B. Hohlprofilen oder Doppel-T-Profilen, nicht. Diese Profile lassen sich jedoch in der Regel nicht durch Kaltwalzen herstellen. Außerdem ist das Anwendungsspektrum solcher symmetrischer Profile wegen fehlender Anschlußmöglichkeiten bzw. einer aufwendigen Verbindungstechnik begrenzt.The mentioned problems of the line of action of the load falling apart with the shear center of the profile exist with closed or double-symmetrical profiles, e.g. Hollow sections or double-T sections, not. However, these profiles cannot usually be produced by cold rolling. In addition, the range of applications of such symmetrical profiles is limited due to the lack of connection options or a complex connection technology.

Der Erfindung liegt die Aufgabe zugrunde, ein Blechprofil zum Erstellen von Traggerüsten, Bühnen und dgl. mit verbessertem Torsionsverhalten zu schaffen, welches überdies im praktischen Einsatz ein breiteres Anwendungsspektrum ermöglicht, als die bekannten Blechprofile.The invention has for its object to provide a sheet metal profile for creating support structures, platforms and the like. With improved torsional behavior, which moreover enables a wider range of applications in practical use than the known sheet metal profiles.

Zur Lösung dieser Aufgabe wird ein Blechprofil der eingangs genannten Art vorgeschlagen, mit einem insgesamt in ein Rechteck eingeschriebenen Querschnitt mit einer die Breite deutlich übersteigenden Höhe, mit das Profil oben und unten begrenzenden, sich über dessen gesamte Breite erstreckenden Schmalseiten, die über einen mehrfach abgewinkelten Steg miteinander verbunden sind, wobei sich der Steg, von zwei einander gegenüberliegenden Kanten der Schmalseiten ausgehend, zunächst ein kurzes Stück entlang der einen Breitseite des das Profil umschreibenden Rechtecks erstreckt, der Steg anschließend unter einem stumpfen Winkel zur gegenüberliegenden, anderen Breitseite schräg abknickt, wo der Steg schließlich ein exakt in der Ebene der anderen Breitseite angeordnetes, flaches Mittelstück bildet.To solve this problem, a sheet metal profile of the type mentioned is proposed, with an overall cross-section inscribed in a rectangle with a height which clearly exceeds the width, with the narrow sides which delimit the top and bottom and which extend over its entire width and which have a multi-angled edge Web are connected to each other, the web, starting from two opposite edges of the narrow sides, initially extending a short distance along one broad side of the rectangle circumscribing the profile, the web then bends obliquely at an obtuse angle to the other broad side, where the web finally forms a flat middle piece arranged exactly in the plane of the other broad side.

Bei einem solchen Blechprofil kommen sich der Schubmittelpunkt des Profils sowie die Wirkungslinie einer vertikal auf das Profil einwirkenden Last sehr nahe, so daß ein im Vergleich zu den bekannten Blechprofilen verbessertes Torsionsverhalten erreicht wird. Das Blechprofil weist zudem den Vorteil auf, besonders gut mit anderen Konstruktionsteilen, und insbesondere einem identischen, symmetrisch angesetzten Blechprofil verbindbar zu sein. Im praktischen Einsatz steht das Blechprofil daher für ein breites Anwendungsspektrum zur Verfügung.With such a sheet metal profile, the center of thrust of the profile and the line of action of a load acting vertically on the profile come very close, so that an improved torsional behavior compared to the known sheet metal profiles is achieved. The sheet profile also has the advantage of being particularly easy to connect to other structural parts, and in particular an identical, symmetrically positioned sheet profile. In practical use, the sheet profile is therefore available for a wide range of applications.

Von Vorteil ist es, wenn das Blechprofil bezüglich der durch die halbe Höhe definierten Ebene symmetrisch geformt ist. Auf diese Weise werden die Vorteile des Blechprofils in jeder Einbaulage erreicht.It is advantageous if the sheet metal profile is shaped symmetrically with respect to the plane defined by half the height. In this way, the advantages of the sheet metal profile are achieved in any installation position.

Die Verbindung mit anderen Konstruktionsteilen und insbesondere mit einem identisch gestalteten und symmetrisch ansetzbaren Blechprofil wird wesentlich verbessert, wenn gemäß einer bevorzugten Ausgestaltung der Erfindung an jenen zwei einander gegenüberliegenden Kanten der Schmalseiten, von denen der Steg nicht ausgeht, rechtwinklig zu den Schmalseiten ausgerichtete, kurze Abwinklungen angeformt sind, die exakt in der Ebene des Mittelstücks liegen.The connection with other structural parts and in particular with an identically designed and symmetrically attachable sheet profile is significantly improved if, according to a preferred embodiment of the invention, on those two opposite edges of the narrow sides from which the web does not extend, short anglings oriented at right angles to the narrow sides are molded on, which lie exactly in the plane of the center piece.

Das Blechprofil weist ein besonders günstiges Torsionsverhalten auf, wenn das Höhen-Breiten-Verhältnis zwischen 2,5 : 1 bis 6 : 1 beträgt. Hierzu wird ferner vorgeschlagen, daß das Verhältnis der Höhe des Profils zur Höhe des Mittelstücks von 1,5 : 1 bis 2,5 : 1 beträgt.The sheet profile has a particularly favorable torsional behavior if the height-width ratio is between 2.5: 1 to 6: 1. For this purpose, it is also proposed that the ratio of the height of the profile to the height of the center piece is from 1.5: 1 to 2.5: 1.

Mit der Erfindung wird ferner vorgeschlagen, daß das Mittelstück in regelmäßigen Abständen Öffnungen aufweist. Hierdurch läßt sich das Gewicht des Blechprofils erheblich reduzieren, so daß dieses auch zur Erstellung von Leichtbaukonstruktionen geeignet ist.With the invention it is further proposed that the center piece has openings at regular intervals. As a result, the weight of the sheet metal profile can be reduced considerably, so that it is also suitable for the production of lightweight structures.

Gemäß einer bevorzugten Ausgestaltung ist das Mittelstück oberhalb sowie unterhalb seiner Symmetrieachse mit Lochreihen versehen. Diese Lochreihen gestatten es, zwei identische Blechprofile der genannten Art symmetrisch miteinander zu verbinden, um auf diese Weise einen hochfesten Träger zu erhalten, bei dem Schubmittelpunkt und Wirkungslinie der Last exakt in derselben Ebene liegen. Für eine optimale Verbindungstechnik ist es in diesem Fall von Vorteil, wenn der Abstand der oberen zur unteren Lochreihe 55 bis 75 % der Höhe des Mittelstücks beträgt.According to a preferred embodiment, the middle piece is above and below it Provide lines of symmetry with rows of holes. These rows of holes allow two identical sheet metal profiles of the type mentioned to be connected symmetrically to one another in order to obtain a high-strength beam in which the center of thrust and the line of action of the load lie exactly in the same plane. In this case, for optimal connection technology, it is advantageous if the distance between the top and bottom row of holes is 55 to 75% of the height of the center piece.

Weitere Einzelheiten und Vorteile des Gegenstandes der Erfindung ergeben sich aus der nachfolgenden Beschreibung der zugehörigen Zeichnung. Darin zeigen:

  • Fig. 1 ein Blechprofil nach dem Stand der Technik;
  • Fig. 2 ein weiteres Blechprofil nach dem Stand der Technik;
  • Fig. 3 ein weiteres Blechprofil nach dem Stand der Technik;
  • Fig. 4 ein weiteres Blechprofil nach dem Stand der Technik;
  • Fig. 5 in einer perspektivischen Darstellung ein gemäß der Erfindung ausgebildetes Blechprofil;
  • Fig. 6 das Blechprofil gemäß Fig. 5 in einer Schnittdarstellung und
  • Fig. 7 einen Träger, welcher aus zwei der in den Figuren 5 und 6 dargestellten Blechprofile zusammengesetzt ist.
Further details and advantages of the subject matter of the invention result from the following description of the accompanying drawing. In it show:
  • Figure 1 is a sheet metal profile according to the prior art.
  • 2 shows a further sheet metal profile according to the prior art;
  • 3 shows a further sheet metal profile according to the prior art;
  • 4 shows a further sheet metal profile according to the prior art;
  • 5 shows a perspective view of a sheet metal profile designed according to the invention;
  • Fig. 6 shows the sheet profile according to FIG. 5 in a sectional view and
  • Fig. 7 shows a carrier, which is composed of two of the sheet metal profiles shown in Figures 5 and 6.

Fig. 1 zeigt ein geschlossenes, symmetrisches Profil, wie es aus dem Stand der Technik in verschiedenen Ausführungen bekannt ist. Der entscheidende Vorteil eines solchens Profils besteht darin, daß der Schubmittelpunkt SM des Profils sich genau auf der Wirkungslinie WL einer senkrecht auf das Profil einwirkenden Last befindet. Ein solches Profil ist frei von Torsionsmomenten. Dies gilt in gleicher Weise für das ebenfalls zum Stand der Technik zählende Profil in Gestalt eines Doppel-T gemäß Fig. 2.Fig. 1 shows a closed, symmetrical profile, as is known in various designs from the prior art. The decisive advantage of such a profile is that the shear center SM of the profile is exactly on the line of action WL of a load acting perpendicular to the profile. Such a profile is free of torsional moments. This applies in the same way to the profile, which also belongs to the prior art, in the form of a double T according to FIG. 2.

Sehr hohe Torsionsmomente treten hingegen bei einem C-förmigen Profil auf, wie es zur Erläuterung des Standes der Technik in Fig. 3 dargestellt ist. Der Schubmittelpunkt SM befindet sich hier weit außerhalb des Profilquerschnittes. In Fig. 4 ist ein weiterentwickeltes C-förmiges Profil dargestellt, welches ebenfalls zum Stand der Technik zählt. Die Gestaltung des Profilquerschnitts ähnelt einem Sigma. Charakteristisch an diesem Profil ist die Gestaltung des Steges, welcher die obere mit der unteren Schmalseite verbindet. Dieser Steg verfügt über ein in die Mitte des Profils versetztes Mittelstück, welches über Schrägstücke mit den Schmalseiten verbunden ist. Das Mittelstück bildet hierbei eine Vertiefung, die diesem Profil einen höheren Widerstand gegen Torsionsmomente verleiht als dies bei einem C-förmig gestalteten Profil gemäß Fig. 3 der Fall ist. Gegenüber den Profilen gemäß der Figuren 1 und 2 weist ein Profil in Form eines Sigma ein breiteres Anwendungsspektrum auf, da die Gestaltung des Profiles dessen Verbindung mit anderen Konstruktionselementen bereits wesentlich vereinfacht.On the other hand, very high torsional moments occur with a C-shaped profile, as is shown in FIG. 3 to explain the prior art. The shear center SM is located far outside the profile cross-section. 4 shows a further developed C-shaped profile, which also belongs to the prior art. The design of the profile cross-section resembles a sigma. The characteristic of this profile is the design of the web, which connects the upper with the lower narrow side. This bridge has a center piece which is offset in the middle of the profile and which is connected to the narrow sides via inclined pieces. The middle piece here forms a depression which gives this profile a higher resistance to torsional moments than is the case with a C-shaped profile according to FIG. 3. Compared to the profiles according to FIGS. 1 and 2, a profile in the form of a sigma has a wider range of applications, since the design of the profile already considerably simplifies its connection to other construction elements.

Ein in dieser Hinsicht nochmals verbessertes Profil ist in den Figuren 5 bis 7 dargestellt. Fig. 6 läßt erkennen, daß dieses Profil einem Rechteck R einbeschrieben ist, welches eine deutlich größere Höhe als Breite aufweist. Die Schmalseiten des Rechtecks R stimmen mit der oberen Schmalseite 1 sowie der unteren Schmalseite 2 des Profils überein. An zwei einander gegenüberliegenden Kanten 3,4 der Schmalseiten 1,2 sind jeweils im rechten Winkel kurze Abwinklungen 5,6 angeformt. Diese Abwinklungen 5,6 befinden sich in der Ebene einer der Breitseiten des Rechtecks R und sind im Vergleich zur Höhe des Profils kurz ausgebildet.A profile which has been further improved in this regard is shown in FIGS. 5 to 7. Fig. 6 shows that this profile is inscribed in a rectangle R, which has a significantly greater height than width. The narrow sides of the rectangle R coincide with the upper narrow side 1 and the lower narrow side 2 of the profile. Short bends 5, 6 are formed at right angles on two opposite edges 3, 4 of the narrow sides 1, 2. These bends 5, 6 are located in the plane of one of the broad sides of the rectangle R and are short compared to the height of the profile.

Die den Kanten 3,4 der oberen und unteren Schmalseiten 1,2 jeweils gegenüberliegende Kante 7,8 bildet jeweils den Übergang zu einem Verbindungsstück 9,10, wobei sich jedes dieser Verbindungsstücke 9,10 in der Ebene des oben definierten Rechtecks R befindet. Obere Schmalseite 1 sowie untere Schmalseite 2 gehen daher jeweils auf der einen Seite in die Abwinklung 5 bzw. 6 über, und auf der anderen Seite in das ebenfalls rechtwinklig abgewinkelte Verbindungsstück 9 bzw. 10.The edge 7, 8 respectively opposite the edges 3, 4 of the upper and lower narrow sides 1, 2 forms the transition to a connecting piece 9, 10, each of these connecting pieces 9, 10 being located in the plane of the rectangle R defined above. The upper narrow side 1 and the lower narrow side 2 therefore merge into the angled portions 5 and 6 on one side, and into the connecting piece 9 and 10, which is also angled at right angles, on the other side.

Die Verbindungsstücke 9,10 sind Bestandteil eines mehrfach abgewinkelten Steges 11, der die obere Schmalseite 1 mit der unteren Schmalseite 2 verbindet. Zu diesem Steg 11 gehören Schrägstükke 12,13, die sich an das jeweilige Verbindungsstück 9,10 anschließen. Der Übergang zwischen den Verbindungsstücken 9,10 und den betreffenden Schrägstücken 12,13 ist stumpfwinklig, wie die Figuren 5 bis 7 gut erkennen lassen. Die Länge der Schrägstücke 12,13 ist dergestalt, daß diese sich bis zur gegenüberliegenden, anderen Breitseite des Rechtecks R erstrecken, also bis in jene Ebene, in der sich auch die Abwinklungen 5,6 befinden. Dort knickt der Steg 11 erneut stumpfwinklig ab, wobei sich ein längeres, völlig flach ausgebildetes Mittelstück 14 ergibt. Da sich das Mittelstück 14 in derselben Ebene befindet, wie die beiden Abwinklungen 5,6, lassen sich zwei der so ausgebildeten Blechprofile zu einem Doppelprofil zusammensetzen, wie dies in Fig. 7 dargestellt ist. Hierbei werden zwei dieser Profile symmetrisch zueinander angeordnet, wobei die Außenseiten der Mittelstücke 14 sowie der kurzen Abwinklungen 5,6 flächig aneinanderliegen. Auf diese Weise entsteht ein Träger ähnlich einem Doppel-T-Träger mit hoher Festigkeit und Torsionssteifigkeit.The connecting pieces 9, 10 are part of a multi-angled web 11, which connects the upper narrow side 1 to the lower narrow side 2. This web 11 includes inclined pieces 12, 13 which connect to the respective connecting piece 9, 10. The transition between the connecting pieces 9, 10 and the respective inclined pieces 12, 13 is obtuse, as can be clearly seen in FIGS. 5 to 7. The length of the inclined pieces 12, 13 is such that they extend to the opposite, broad side of the rectangle R, that is to say to the plane in which the bends 5, 6 are also located. There, the web 11 bends again at an obtuse angle, resulting in a longer, completely flat center piece 14. Since the center piece 14 is in the same plane as the two bends 5, 6, two of the sheet metal profiles formed in this way can be assembled to form a double profile, as shown in FIG. 7. Here, two of these profiles are arranged symmetrically to one another, the outer sides of the center pieces 14 and the short bends 5, 6 lying flat against one another. This creates a beam similar to a double-T beam with high strength and torsional rigidity.

Fig. 7 läßt ferner erkennen, daß die Verbindung der beiden Profile über Verschraubungen 15 im Bereich der Mittelstücke 14 erfolgt.Fig. 7 also shows that the connection of the two profiles via screw connections 15 in Area of the center pieces 14 is carried out.

In den Figuren 5 und 6 ist hierzu dargestellt, daß das Mittelstück 14 beiderseits der Symmetrieachse S des Profils Lochreihen 16 aufweist, die ein Durchstecken der Verschraubungen 15 ermöglichen. Der Abstand zwischen der oberen und der unteren Lochreihe 16 beträgt hierbei 55 bis 75 % der Höhe H des Mittelstücks 14. Das aus einem Stück Blech geformte Profil weist beim Ausführungsbeispiel ein Höhen-Breiten-Verhältnis von etwa 4 : 1 auf. Hierbei beträgt das Verhältnis der Höhe des Profils zur Höhe H des Mittelstücks 14 in etwa 1,85 : 1.FIGS. 5 and 6 show that the middle piece 14 has rows of holes 16 on both sides of the axis of symmetry S of the profile, which enable the screw connections 15 to be pushed through. The distance between the upper and lower row of holes 16 is 55 to 75% of the height H of the middle piece 14. The profile formed from a piece of sheet metal has a height-width ratio of approximately 4: 1 in the exemplary embodiment. The ratio of the height of the profile to the height H of the middle piece 14 is approximately 1.85: 1.

Zur Gewichtseinsparung ist das Mittelstück 14 in regelmäßigen Abständen mit größeren Öffnungen 17 versehen.To save weight, the center piece 14 is provided with larger openings 17 at regular intervals.

In der Fig. 6 ist die Lage des Schubmittelpunktes SM im Vergleich zur Wirkungslinie WL der Last bei einem erfindungsgemäßen Blechprofil eingezeichnet. Zu erkennen ist, daß es durch die besondere Gestaltung dieses Blechprofils gelingt, Schubmittelpunkt SM und Wirkungslinie WL in die Nähe zueinander zu bringen, wobei es von zusätzlichem Vorteil ist, daß der Schubmittelpunkt SM dieses Blechprofils etwa in der Mitte des Profilquerschnittes liegt.6 shows the position of the shear center SM in comparison to the line of action WL of the load in a sheet metal profile according to the invention. It can be seen that the special design of this sheet profile enables the center of thrust SM and the line of action WL to be brought close to one another, with it being an additional advantage that the center of thrust SM of this sheet profile lies approximately in the middle of the profile cross section.

BezugszeichenlisteReference list

  • 1 obere Schmalseite1 upper narrow side
  • 2 untere Schmalseite2 lower narrow side
  • 3 Kante3 edge
  • 4 Kante4 edge
  • 5 Abwinklung5 bend
  • 6 Abwinklung6 bend
  • 7 Kante7 edge
  • 8 Kante8 edge
  • 9 Verbindungsstück9 connector
  • 10 Verbindungsstück10 connecting piece
  • 11 Steg11 bridge
  • 12 Schrägstück12 sloping piece
  • 13 Schrägstück13 sloping piece
  • 14 Mittelstück14 center piece
  • 15 Verschraubung15 screw connection
  • 16 Lochreihe16 row of holes
  • 17 Öffnung17 opening
  • H Höhe MittelstückH height center piece
  • R RechteckR rectangle
  • S SymmetrieachseS axis of symmetry
  • SM SchubmittelpunktSM thrust center
  • WL Wirkungslinie der LastWL line of action of the load

Claims (8)

1. Blechprofil, vorzugsweise in kaltgewalzter Ausführung, zum Erstellen von Traggerüsten, Bühnen und dgl., mit einem insgesamt in ein Rechteck (R) eingeschriebenen Querschnitt mit einer die Breite deutlich übersteigenden Höhe, mit das Profil oben und unten begrenzenden, sich über dessen gesamte Breite erstreckenden Schmalseiten (1,2), die über einen mehrfach abgewinkelten Steg (11) miteinander verbunden sind, wobei sich der Steg (11), von zwei einander gegenüberliegenden Kanten (3,4) der Schmalseiten (1,2) ausgehend, zunächst ein kurzes Stück entlang der einen Breitseite des das Profil umschreibenden Rechtecks (R) erstreckt, der Steg (11) anschließend unter einem stumpfen Winkel zur gegenüberliegenden, anderen Breitseite schräg abknickt, wo der Steg (11) schließlich ein exakt in der Ebene der anderen Breitseite angeordnetes, flaches Mittelstück (14) bildet.1. Sheet metal profile, preferably in a cold-rolled version, for the construction of supporting scaffolds, platforms and the like, with a cross section inscribed overall in a rectangle (R) with a height which significantly exceeds the width, with the profile delimiting at the top and bottom, over its entire length Width-extending narrow sides (1, 2) which are connected to one another via a multi-angled web (11), the web (11) starting from two opposite edges (3, 4) of the narrow sides (1,2) a short distance along one broad side of the rectangle circumscribing the profile, the web (11) then bends obliquely at an obtuse angle to the opposite, other broad side, where the web (11) finally ends exactly in the plane of the other broad side arranged, flat middle piece (14) forms. 2. Blechprofil nach Anspruch 1, dadurch gekennzeichnet, daß dieses bezüglich der durch die halbe Höhe definierten Ebene symmetrisch geformt ist.2. Sheet metal profile according to claim 1, characterized in that it is shaped symmetrically with respect to the plane defined by half the height. 3. Blechprofil nach Anspruch 1, dadurch gekennzeichnet, daß an jenen zwei einander gegenüberliegenden Kanten (7,8) der Schmalseiten (1,2), von denen der Steg (11) nicht ausgeht, rechtwinklig zu den Schmalseiten (1,2) ausgerichtete, kurze Abwinklungen (5,6) angeformt sind, die exakt in der Ebene des Mittelstücks (14) liegen.3. Sheet metal profile according to claim 1, characterized in that on those two opposite edges (7,8) of the narrow sides (1,2), from which the web (11) does not extend, aligned at right angles to the narrow sides (1,2) , short bends (5,6) are formed, which lie exactly in the plane of the center piece (14). 4. Blechprofil nach einem der Ansprüche 1 bis 3, gekennzeichnet durch ein Höhen-Breiten-Verhältnis von 2,5 : 1 bis 6 : 1.4. Sheet metal profile according to one of claims 1 to 3, characterized by a height-width ratio of 2.5: 1 to 6: 1. 5. Blechprofil nach einem der Ansprüche 1 bis 4, gekennzeichnet durch ein Verhältnis der Höhe des Profils zur Höhe (H) des Mittelstücks (14) von 1,5 : 1 bis 2,5 : 1.5. Sheet metal profile according to one of claims 1 to 4, characterized by a ratio of the height of the profile to the height (H) of the center piece (14) from 1.5: 1 to 2.5: 1. 6. Blechprofil nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Mittelstück (14) in regelmäßigen Abständen größere Öffnungen (17) aufweist.6. Sheet metal profile according to one of claims 1 to 5, characterized in that the center piece (14) has larger openings (17) at regular intervals. 7. Blechprofil nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das Mittelstück (14) oberhalb sowie unterhalb seiner Symmetrieachse (S) mit Lochreihen (16) versehen ist.7. Sheet metal profile according to one of claims 1 to 6, characterized in that the central piece (14) above and below its axis of symmetry (S) is provided with rows of holes (16). 8. Blechprofil nach Anspruch 7, dadurch gekennzeichnet, daß der Abstand der oberen zur unteren Lochreihe (16) 55 bis 75 % der Höhe (H) des Mittelstücks (14) beträgt.8. Sheet metal profile according to claim 7, characterized in that the distance of the upper to the lower row of holes (16) is 55 to 75% of the height (H) of the central piece (14).
EP93113383A 1992-11-02 1993-08-21 Sheet metal, preferably cold rolled section for the construction of supporting frameworks, platforms or the like Withdrawn EP0596207A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9214871U 1992-11-02
DE9214871U DE9214871U1 (en) 1992-11-02 1992-11-02 Cold rolled sheet profile in the shape of a sigma

Publications (1)

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EP0596207A1 true EP0596207A1 (en) 1994-05-11

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Cited By (5)

* Cited by examiner, † Cited by third party
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WO1996017143A1 (en) * 1994-12-01 1996-06-06 Metal Deploye S.A. Supporting member for lattice structures
WO1996029490A1 (en) * 1995-03-17 1996-09-26 Mark Alan Gebbie Fabricated elongate metal construction of support element
EP0884013A1 (en) * 1997-06-12 1998-12-16 SDI Display Ltd Display panels
EP1113121A2 (en) * 2000-01-03 2001-07-04 Hermann Moll Frame, respectively support frame
EP1258575A3 (en) * 2001-05-17 2003-01-08 HILTI Aktiengesellschaft Profile with two slide rails

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9214871U1 (en) * 1992-11-02 1993-01-07 Nedcon Magazijninrichting B.V., Doetinchem Cold rolled sheet profile in the shape of a sigma
DE29915443U1 (en) 1999-09-02 1999-11-25 Hölscher, Andreas, Dr., 50933 Köln Cantilever rack
DE202009007245U1 (en) * 2009-04-28 2009-08-20 Kocher Regalbau Gmbh High-bay warehouse and support for a high-bay warehouse

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GB445476A (en) * 1934-10-09 1936-04-09 Robert Kemsley Newcomb Improvements in or relating to building walls, floors, partitions, roofs and the like
US2508032A (en) * 1945-12-22 1950-05-16 Benjamin H Kennedy Structural metal member
GB1001679A (en) * 1962-03-20 1965-08-18 Jacques Marchand Improvements in or relating to girders and beams
DE1509054A1 (en) * 1964-02-21 1968-12-19 Willats William Henry Beams and beam constructions
GB1603516A (en) * 1978-05-25 1981-11-25 Rayid Metal Dev Ltd Formwork soldier
US4429507A (en) * 1979-11-01 1984-02-07 Csongrad Megyei Ianacsi Epitoipari Vallalat Universal building frame
EP0132894A1 (en) * 1983-07-22 1985-02-13 Thomas Regout N.V. Cold-rolled girder section
US4745666A (en) * 1987-07-17 1988-05-24 Etco Building Systems, Inc. Spring clip for sheet metal construction
DE9214871U1 (en) * 1992-11-02 1993-01-07 Nedcon Magazijninrichting B.V., Doetinchem Cold rolled sheet profile in the shape of a sigma

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996017143A1 (en) * 1994-12-01 1996-06-06 Metal Deploye S.A. Supporting member for lattice structures
FR2727712A1 (en) * 1994-12-01 1996-06-07 Metal Deploye Sa SUPPORTING ELEMENT FOR MESH STRUCTURES
US5899041A (en) * 1994-12-01 1999-05-04 Metal Deploye S.A. Supporting member for lattice structures
WO1996029490A1 (en) * 1995-03-17 1996-09-26 Mark Alan Gebbie Fabricated elongate metal construction of support element
EP0884013A1 (en) * 1997-06-12 1998-12-16 SDI Display Ltd Display panels
EP1113121A2 (en) * 2000-01-03 2001-07-04 Hermann Moll Frame, respectively support frame
EP1113121A3 (en) * 2000-01-03 2001-11-14 Hermann Moll Frame, respectively support frame
DE10000011C2 (en) * 2000-01-03 2002-07-11 Hermann Moll Scaffolding or support frame
EP1258575A3 (en) * 2001-05-17 2003-01-08 HILTI Aktiengesellschaft Profile with two slide rails
US6807791B2 (en) 2001-05-17 2004-10-26 Hilti Aktiengesellschaft Double-rail profile

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