EP0017647B1 - Load-bearing, surface composing section element of sheet or plate - Google Patents

Load-bearing, surface composing section element of sheet or plate Download PDF

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Publication number
EP0017647B1
EP0017647B1 EP19800890034 EP80890034A EP0017647B1 EP 0017647 B1 EP0017647 B1 EP 0017647B1 EP 19800890034 EP19800890034 EP 19800890034 EP 80890034 A EP80890034 A EP 80890034A EP 0017647 B1 EP0017647 B1 EP 0017647B1
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Prior art keywords
transverse
webs
corner
upper chord
engravements
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EP19800890034
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German (de)
French (fr)
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EP0017647A1 (en
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Hans Taborsky
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    • 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

Definitions

  • the invention relates to a load-bearing, area-forming sheet metal profile element, in particular roof element for the production of hall roofs.
  • Elements of this type are known as so-called trapezoidal profile sheets. They consist of a large number of support flanges and belts which are offset in height from one another and which are connected by means of webs to form a meandering sheet metal profile formed from a large number of trapezoids arranged next to one another. Such profiles are used for covering rooms and roofs by placing them side by side over purlins or trusses.
  • the roof structure is applied to roofs thus formed, e.g. a multi-layer layer consisting of bitumen roof slabs is applied and sprinkled with a layer of gravel or covered with a roofing film.
  • the channel-shaped troughs of the trapezoidal sheets are poured out with concrete.
  • sheet profile elements have the disadvantage that they have a high weight with a relatively low load capacity.
  • the known elements also have a low torsional strength.
  • the adhesion of the pouring concrete to the sheet metal elements is not sufficient, so that in order to prevent migration, additional means, e.g. Wire inserts are required.
  • Sheet metal profiles with a trapezoidal cross-section are also known, which are formed from two outer support flanges, webs emanating from them and a single upper flange connecting the webs, impressions or bulges arranged at a distance from one another transversely to the longitudinal extension of the elements.
  • these trapezoidal profiles according to the preamble of claim 1, as described for example in AT-B-345525 have only a low bending stiffness in the transverse direction, which is why their assembly is difficult and requires considerable effort. So it is either necessary to increase the sheet thickness or to use bearing plates with webs and base flanges spread by special lugs as installation aids when laying such profiles, which increases the sheet metal work and the weight accordingly and complicates the assembly.
  • the invention aims to avoid the difficulties and disadvantages described and has as its object to create an improved ratio of load capacity to dead weight compared to the known elements, but increasing the rigidity in the transverse direction, stabilizing the angle between the top flange and web and during assembly no additional aids are required.
  • the invention solves this problem in a load-bearing, area-forming sheet metal profile element, in particular roof element for the production of hall roofs, with two outer support flanges, two webs extending from these and a top flange connecting the webs, the transverse embossments arranged at a distance from one another transversely to the longitudinal extent of the element has, characterized in that between each two transverse embossments of the upper chord on the upper chord and on the lateral webs around the edges, a corner embossment extending transversely to the longitudinal extent is provided on both edges, the embossed rear wall of which is angled, the transverse embossments end with the upper chord at a predetermined distance from the webs, whereas the ends of the corner embossments which extend into the upper chord engage behind the transverse embossments.
  • corner indentations can also be provided in the area of the pressure-absorbing upper chord, which engage behind the transverse indentations, i.e. that you can get by without a straight zone in the pressure area without affecting the load-bearing capacity.
  • corner impressions are known from US-A-2 226 682 and NL-A-7 204140
  • US-A-2 226 682 is wall cladding, in particular for railroad cars which have no load-bearing function.
  • the known corner embossments as in accordance with the invention, are not sufficient around the corner, i.e. the back wall of the corner embossing is straight. Since trapezoidal sheets only tolerate minor deformations, such a corner embossing is not an option for trapezoidal sheets.
  • the corner embossments are only in the lower flange. i.e. in the train zone.
  • the cladding panels known from this publication are those which have a plurality of upper and lower chords, with no transverse embossments being present.
  • a preferred embodiment of the invention is characterized in that the parts of the corner embossments extending into the webs extend over at least one third of the web height.
  • Fig. 1 shows a diagonal view
  • Fig. 2 shows a section along the line II-II
  • Fig. 3 shows a section along the line III-III.
  • Fig. 4 the laying of such elements as a roof structure or as a floor ceiling is shown graphically.
  • the element 1 according to FIG. 1 consists of the two outer support flanges 2, 2 ', the inclined webs 3, 3' and the upper flange 4 connecting these webs.
  • These transverse impressions 5 could also be designed as elevations.
  • groove-shaped corner impressions 7 which run transversely to the longitudinal extent of the profile and extend around the edges are also embossed to a lesser depth than the beads 5. Instead of the corner impressions 7, bulges could also be present.
  • the parts of the corner embossments protruding into the webs expediently extend over at least a third of the web height 9, in the exemplary embodiment shown up to about half the web height.
  • the transverse embossments 5 and the corner embossments 7, 7 '' mesh with one another in a tooth-like manner, whereby they engage behind one another by the dimension 10, viewed in the longitudinal direction of the element.
  • the transverse impressions 5 each end at a distance 11 in front of the edges 6, 6 'and are each arranged at a distance 12 from the corner impressions 7, 7', so that the flat undeformed part of the upper flange 4 is located between the transverse and corner Imprints extend meandering over the entire length of the element. This ensures that the course of forces on the upper chord is not caused by the impressions 5; 7, 7 'is interrupted, so that a further material saving is possible by using even thinner sheets with the same load capacity.
  • FIG. 4 shows how several elements 1 are placed over support profiles 13, 14 and joined together with the flanges, the guide grooves 8, 8 'of adjacent elements coming to lie one above the other. This results in a firm association.
  • the troughs 15 formed between adjacent elements can be poured with concrete, the corner impressions 7, 7 'preventing the concrete from migrating relative to the elements.
  • concrete can also be placed over the belts 4, in which case the transverse embossments 5 further increase the adhesion, so that migration of the concrete relative to the sheet metal profiles 1 is not possible.
  • no auxiliary support devices are used for assembly.
  • a spreading of the webs is also in the case of elements that are not yet firmly attached to the support profiles, but rather only in the case of initially placed elements as a result of the corner impressions 7, 7 'and their “engagement dimension 10 with the transverse impressions 5, even under greater loads, for example by the assembly personnel , effectively prevented.
  • the sheet metal profiles designed according to the invention can advantageously be produced from thin sheets with thicknesses of 0.75 to 2 mm, the height 9 of the profile, i.e. the vertical distance of the top flange from the support flanges can be 75 mm to 250 mm depending on the load.
  • the weight saving compared to conventional sheet metal profiles, in particular trapezoidal profile sheets - with the same load capacity of the profiles - is considerable, as can also be seen from the following example.
  • a trapezoidal profile sheet was used for a certain predetermined load, which had a width of 625 mm and a height of 100 mm.
  • These profiles were formed in a known manner from four support flanges, six webs and three top chords into a meandering shape.
  • These known profiles were made from a sheet metal strip with a width of 1 250 mm.
  • the sheet thickness required for the specified load was 0.88 mm.
  • This sheet profile was replaced on the basis of the same load by an element according to the invention.
  • the height of the profile according to the invention was 175 mm with the same width.
  • the sheet metal profile according to the invention was formed with two webs, two support flanges and an upper flange from a sheet metal strip with a width of 1,000 mm and a thickness of 1 mm.
  • the sheet volume for 1 m length is 1,100 cm 3 for the known trapezoidal profile sheet, but only 1,000 cm 3 for the sheet profile element according to the invention. This results in a saving of 10% when using the sheet metal profile element according to the invention instead of a trapezoidal sheet metal that has been conventionally used up to now. This saving is even greater when using sheet metal profile elements according to the invention of greater height (for a correspondingly greater load).
  • the depth of the transverse and corner impressions 5 and 7, 7 'or the height of the bulges can vary in wide ranges, from single to multiple sheet thicknesses, the depth of the transverse impressions 5 advantageously being greater than that of the corner impressions 7, 7 'in the edge region.
  • the sheet metal profiles according to the invention can be galvanized or surface-coated. In addition to steel, they can be made from light metal alloys. They are fastened with screws or set bolts. In the construction according to FIG. 4, the flanges 2 lying one on top of the other are riveted together.

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Description

Die Erfindung betrifft ein tragendes, flächenbildendes Blechprofilelement, insbesondere Dachelement für die Herstellung von Hallendächern.The invention relates to a load-bearing, area-forming sheet metal profile element, in particular roof element for the production of hall roofs.

Elemente dieser Art sind als sogenannte Trapezprofilbleche bekannt. Sie bestehen aus einer Vielzahl von Auflagerflanschen und zu diesen höhenversetzt angeordneten Gurten, die mittels Stege zur einem meanderförmigen, aus einer Vielzahl nebeneinander angeordneter Trapeze gebildeten Blechprofil verbunden sind. Solche Profile werden für die Überdeckung von Räumen sowie für Dächer verwendet, indem sie nebeneinander über Pfetten bzw. Binder gelegt werden. Auf so gebildete Dächer wird der Dachaufbau aufgebracht, z.B. eine mehrlagige, aus Bitumendachplatten bestehende Schicht aufgelegt und mit einer Kiesschicht bestreut oder mit einer Dachfolie beklebt. Bei Verwendung der Elemente als Geschoßabdeckung werden die rinnenförmigen Mulden der Trapezbleche mit Beton ausgegossen.Elements of this type are known as so-called trapezoidal profile sheets. They consist of a large number of support flanges and belts which are offset in height from one another and which are connected by means of webs to form a meandering sheet metal profile formed from a large number of trapezoids arranged next to one another. Such profiles are used for covering rooms and roofs by placing them side by side over purlins or trusses. The roof structure is applied to roofs thus formed, e.g. a multi-layer layer consisting of bitumen roof slabs is applied and sprinkled with a layer of gravel or covered with a roofing film. When using the elements as a floor covering, the channel-shaped troughs of the trapezoidal sheets are poured out with concrete.

Diese Blechprofilelemente haben den Nachteil, daß sie ein hohes Eigengewicht bei relativ geringer Belastbarkeit aufweisen. Die bekannten Elemente haben auch eine geringe Torsionsfestigkeit. Bei Verwendung als Geschoßabdeckung ist die Haftung des Ausgußbetons an den Blechelementen nicht ausreichend, sodaß, um ein Wandern zu verhindern, zusätzliche mittel, z.B. Drahteinlagen, erforderlich sind.These sheet profile elements have the disadvantage that they have a high weight with a relatively low load capacity. The known elements also have a low torsional strength. When used as a floor covering, the adhesion of the pouring concrete to the sheet metal elements is not sufficient, so that in order to prevent migration, additional means, e.g. Wire inserts are required.

Es ist für aus Blech gebildete verlorene Verschalungen von Betondecken bekannt (FR-A-1 129 998), die Verschalungen mit Mulden zu versehen, wobei zwischen den Mulden liegende Teile Aushöhlungen aufweisen und an den Seitenwänden der Mulden an ihrem Grund Falze vorgesehen sind, die eine Relativbewegung des Betons zur verlorenen Verschalung verhindern. Diese bekannten Verschalungen weisen ebenfalls eine geringe Torsionsfestigkeit und eine geringe Steifigkeit in Querrichtung auf.It is known for lost cladding of concrete ceilings formed from sheet metal (FR-A-1 129 998) to provide the cladding with depressions, parts lying between the depressions having hollows and folds being provided on the side walls of the depressions at their base, which prevent the concrete from moving relative to the lost formwork. These known formworks also have low torsional strength and low transverse rigidity.

Es sind auch Blechprofile mit trapezförmigem Querschnitt bekannt, die aus zwei äußeren Auflagerflanschen, von diesen ausgehenden Stegen und einem einzigen, die Stege verbindenden Obergurt gebildet sind, wobei quer zur Längserstreckung der Elemente im Abstand voneinander angeordnete Einprägungen bzw. Aufwölbungen vorgesehen sind. Diese trapezförmigen Profile gemäß dem Oberbegriff des Anspruchs 1, wie sie beispielsweise in der AT-B-345525 beschrieben sind, haben jedoch nur eine geringe Biegesteifigkeit in Querrichtung, weshalb ihre Montage schwierig ist und einen erheblichen Aufwand erfordert. So ist es entweder notwendig, die Blechdicke zu erhöhen oder bei der Verlegung solcher Profile Auflagerbleche mit durch spezielle Laschen verspreizten Stegen und Bodenflanschen als Montagehilfsmittel zu verwenden, was den Blechaufwand und das Gewicht entsprechend erhöht und die Montage kompliziert.Sheet metal profiles with a trapezoidal cross-section are also known, which are formed from two outer support flanges, webs emanating from them and a single upper flange connecting the webs, impressions or bulges arranged at a distance from one another transversely to the longitudinal extension of the elements. However, these trapezoidal profiles according to the preamble of claim 1, as described for example in AT-B-345525, have only a low bending stiffness in the transverse direction, which is why their assembly is difficult and requires considerable effort. So it is either necessary to increase the sheet thickness or to use bearing plates with webs and base flanges spread by special lugs as installation aids when laying such profiles, which increases the sheet metal work and the weight accordingly and complicates the assembly.

Die Erfindung bezweckt die Vermeidung der geschilderten Schwierigkeiten und Nachteile und stellt sich die Aufgabe, ein gegenüber den bekannten Elementen verbessertes Verhältnis von Belastbarkeit zum Eigengewicht zu schaffen, wobei jedoch die Steifigkeit in Querrichtung erhöht, der Winkel zwischen Obergurt und Steg stabilisiert wird und bei der Montage keine zusätzlichen Hilfsmittel erforderlich sind.The invention aims to avoid the difficulties and disadvantages described and has as its object to create an improved ratio of load capacity to dead weight compared to the known elements, but increasing the rigidity in the transverse direction, stabilizing the angle between the top flange and web and during assembly no additional aids are required.

Die Erfindung löst diese Aufgabe bei einem tragenden, flächenbildenden Blechprofilelement, insbesondere Dachelement für die Herstellung von Hallendächern, mit zwei äußeren Auflageflanschen, zwei von diesen ausgehenden Stegen und einem die stege verbindenden Obergurt, der quer zur Längserstreckung des Elementes im Abstand voneinander angeordnete Quer-Einprägungen aufweist, dadurch, daß zwischen jeweils zwei Quer-Einprägungen des Obergurtes am Obergurt und an den seitlichen Stegen um die Kanten herumreichend an beiden Kanten je eine quer zur Längserstreckung verlaufende Eck-Einprägung vorgesehen ist, deren eingeprägte Rückwand abgewinkelt ist, wobei die Quer-Einprägungen mit Obergurt in einem vorbestimmten Abstand von den Stegen enden, wogegen die in den Obergurt sich erstreckenden Enden der Eck-Einprägungen die Quer-Einprägungen hintergreifen.The invention solves this problem in a load-bearing, area-forming sheet metal profile element, in particular roof element for the production of hall roofs, with two outer support flanges, two webs extending from these and a top flange connecting the webs, the transverse embossments arranged at a distance from one another transversely to the longitudinal extent of the element has, characterized in that between each two transverse embossments of the upper chord on the upper chord and on the lateral webs around the edges, a corner embossment extending transversely to the longitudinal extent is provided on both edges, the embossed rear wall of which is angled, the transverse embossments end with the upper chord at a predetermined distance from the webs, whereas the ends of the corner embossments which extend into the upper chord engage behind the transverse embossments.

Die erfinderische Erkenntnis besteht darin, daß man auch im Bereich des Druck aufnehmenden Obergurtes Eck-Einprägungen vorsehen kann, welche die Quer-Einprägungen hintergreifen, d.h. daß man ohne geradlinig durchlaufende Zone im Druckbereich auskommen kann, ohne die Tragfähigkeit zu beeinträchtigen.The inventive finding consists in the fact that corner indentations can also be provided in the area of the pressure-absorbing upper chord, which engage behind the transverse indentations, i.e. that you can get by without a straight zone in the pressure area without affecting the load-bearing capacity.

Der Anordnung der erfindungsgemäßen Eck-Einprägungen an einem aus der AT-B-345525 bekannten Trapezblech stehen die gemäß dieser AT-B-345525 vorgesehenen und für das dort beschriebene Trapezblech als wesentlich angesehenen am Obergurt längsverlaufenden Versteifungsfalten im Wege.The arrangement of the corner embossings according to the invention on a trapezoidal sheet known from AT-B-345525 is hampered by the stiffening folds provided according to this AT-B-345525 and regarded as essential for the trapezoidal sheet described there as essential on the upper chord.

Aus der US-A-2 226 682 und der NL-A-7 204140 sind zwar Eck-Einprägungen bekannt, jedoch handelt es sich bei der US-A-2 226 682 um Wandverkleidungen, insbesondere für Einsenbahnwagen, die keine tragende Funktion haben. Die bekannten Eck-Einprägungen reichen nicht, wie erfindungsgemäß, um die Ecke herum, d.h. die Rückwand der Eck-Einprägung ist geradlinig. Da Trapezbleche nur geringe Verformungen ertragen, kommt eine derartige Eck-Einprägung für Trapezbleche nicht in Frage. Gemäß der NL-A-7 204140 sind die Eck-Einprägungen nur im Untergurt. d.h. in der Zugzone, angeordnet. Außerdem handelt es sich bei den aus dieser Druckschrift bekannten Verkleidungsplatten um solche, die mehrere Ober- und Untergurte aufweisen, wobei keine Quer-Einprägungen vorhanden sind.Although corner impressions are known from US-A-2 226 682 and NL-A-7 204140, US-A-2 226 682 is wall cladding, in particular for railroad cars which have no load-bearing function. The known corner embossments, as in accordance with the invention, are not sufficient around the corner, i.e. the back wall of the corner embossing is straight. Since trapezoidal sheets only tolerate minor deformations, such a corner embossing is not an option for trapezoidal sheets. According to NL-A-7 204140, the corner embossments are only in the lower flange. i.e. in the train zone. In addition, the cladding panels known from this publication are those which have a plurality of upper and lower chords, with no transverse embossments being present.

Eine bevorzugte Ausführungsform der Erfindung ist dadurch gekennzeichnet, daß die sich in die Stege erstreckenden Teile der Eck-Einprägungen über mindestens ein Drittel der Steghöhe reichen.A preferred embodiment of the invention is characterized in that the parts of the corner embossments extending into the webs extend over at least one third of the web height.

Die Erfindung ist an einem Ausführungsbeispiel in der Zeichnung näher erläutert, wobei Fig. 1 einen Schrägriß, Fig. 2 einen Schnitt nach der Linie II-II und Fig. 3 einen Schnitt nach der Linie III-III darstellen. In Fig. 4 ist die Verlegung solcher Elemente als Dachkonstruktion bzw. als Geschoßdecke schaubildlich gezeigt.The invention is explained in more detail using an exemplary embodiment in the drawing, in which Fig. 1 shows a diagonal view, Fig. 2 shows a section along the line II-II and Fig. 3 shows a section along the line III-III. In Fig. 4 the laying of such elements as a roof structure or as a floor ceiling is shown graphically.

Das Element 1 gemäß Fig. 1 besteht aus den beiden äußeren Auflagerflanschen 2, 2', den schrägen Stegen 3, 3' und dem diese Stege verbindenden Obergurt 4. Quer zur Längserstreckung des Elementes 1 sind zueinander paralele rillenförmige Quer-Sicken 5 eingeprägt, die eine hohe Quersteifigkeit und damit eine höhere Belastbarkeit verleihen. Diese Quer-Einprägungen 5 könnten auch als Erhebungen ausgebildet sein. Im Bereich der Kanten 6, 6' zwischen dem Obergurt4 und den Stegen 3, 3' sind ebenfalls quer zur Längserstreckung des Profils verlaufende, um die Kanten herumreichende rillenförmige Eck-Einprägungen 7 mit geringerer Tiefe als die Sicken 5 eingeprägt. Statt der Eck-Einprägungen 7 könnten auch Aufwölbungen vorhanden sein. Die Eck-Einprägungen 7, die sich zum Teil in den Obergurt und zum Teil in die Stege hineinerstrecken, verhindern ein Spreizen der Stege 3, 3'. Dies ist insbesondere beim Verlegen der Elemente, bevor diese montiert werden, von besonderem Vorteil, da die Elemente ohne die Verwendung von eigenen Aussteifungen auch im noch nicht fixierten Zustand begehbar sind. Die in die Stege ragenden Teile der Eck-Einprägungen reichen zweckmäßig über mindestens ein Drittel der Steghöhe 9, im dargestellten Ausführungsbeispiel bis etwa zur Hälfte der Steghöhe.The element 1 according to FIG. 1 consists of the two outer support flanges 2, 2 ', the inclined webs 3, 3' and the upper flange 4 connecting these webs. Crosswise to the longitudinal extension of the element 1, parallel grooved transverse beads 5 are embossed, which provide a high degree of transverse rigidity and thus greater resilience. These transverse impressions 5 could also be designed as elevations. In the area of the edges 6, 6 'between the upper chord 4 and the webs 3, 3', groove-shaped corner impressions 7 which run transversely to the longitudinal extent of the profile and extend around the edges are also embossed to a lesser depth than the beads 5. Instead of the corner impressions 7, bulges could also be present. The corner embossments 7, which extend partly into the upper flange and partly into the webs, prevent the webs 3, 3 'from spreading. This is of particular advantage when laying the elements before they are installed, since the elements can be walked on without using their own stiffeners even when they are not yet fixed. The parts of the corner embossments protruding into the webs expediently extend over at least a third of the web height 9, in the exemplary embodiment shown up to about half the web height.

Zweckmäßig besitzen die Flansche 2, 2' in Längsrichtung verlaufende aufgewölbte Führungsrillen bzw. 8', die einerseits eine Festigkeitserhöhung bewirken und andererseits die Verbindung aneinander stoßender benachbarter Elemente durch eine Zentrierwirkung verbessern.The flanges 2, 2 'expediently have curved guide grooves 8 or 8' running in the longitudinal direction, which on the one hand increase the strength and on the other hand improve the connection of adjoining adjacent elements by a centering effect.

Wie insbesondere aus Fig. ersichtlich ist, greifen die Quer-Einprägungen 5 und die Eck-Einprägungen 7, 7' « zahnartig ineinander, wobei sie sich, in Längsrichtung des Elementes gesehen, um das Maß 10 hintergreifen. Die Quer-einprägungen 5 endigen jeweils im Abstand 11 vor den Kanten 6, 6' und sind jeweils im Abstand 12 von den Eck-Einprägungen 7, 7' angeordnet, sodaß sich der ebene unverformte Teil des Obergurtes 4 zwischen den Quer- und Eck-Einprägungen meanderförmig über die gesamte Länge des Elementes erstreckt. Dadurch ist sichergestellt, daß der Kräfteverlauf am Obergurt nicht durch die Einprägungen 5 ; 7, 7' unterbrochen ist, sodaß eine weitere Materialersparnis durch Verwendung noch dünnerer Bleche bei gleicher Belastbarkeit möglich ist.As can be seen in particular from FIG. 1, the transverse embossments 5 and the corner embossments 7, 7 '' mesh with one another in a tooth-like manner, whereby they engage behind one another by the dimension 10, viewed in the longitudinal direction of the element. The transverse impressions 5 each end at a distance 11 in front of the edges 6, 6 'and are each arranged at a distance 12 from the corner impressions 7, 7', so that the flat undeformed part of the upper flange 4 is located between the transverse and corner Imprints extend meandering over the entire length of the element. This ensures that the course of forces on the upper chord is not caused by the impressions 5; 7, 7 'is interrupted, so that a further material saving is possible by using even thinner sheets with the same load capacity.

In der Darstellung nach Fig. 4 ist gezeigt, wie mehrere Elemente 1 über Tragprofile 13, 14 gelegt und mit den Flanschen aneinandergefügt sind, wobei die Führungsrillen 8, 8' benachbarter Elemente übereinander zu liegen kommen. Damit ergibt sich ein fester Verband. Die gebildeten Mulden 15 zwischen benachbarten Elementen können mit Beton ausgegossen werden, wobei die Eck-Einprägungen 7, 7' ein Wandern des Betons gegenüber den Elementen verhindern. Es kann auch über die Gurte 4, je nach der auftretenden Belastung, Aufbeton gelegt werden, in welchem Fall die Quer-Einprägungen 5 die Haftung weiter erhöhen, sodaß ein Wandern des Betons gegenüber den Blechprofilen 1 nicht möglich ist. Wie aus Fig. 4 ersichtlich ist, werden zur Montage keinerlei Hilfs-Stützeinrichtungen verwendet. Ein Spreizen der Stege ist auch bei noch nicht fest an den Tragprofilen montierten, sondern bei zunächst nur aufgelegten Elementen infolge der Eck-Einprägungen 7, 7' und deren « Hintergreifungsmaß 10 mit den Quer-Einprägungen 5 auch bei größerer Belastung, beispielsweise durch das Montagepersonal, wirkungsvoll verhindert.4 shows how several elements 1 are placed over support profiles 13, 14 and joined together with the flanges, the guide grooves 8, 8 'of adjacent elements coming to lie one above the other. This results in a firm association. The troughs 15 formed between adjacent elements can be poured with concrete, the corner impressions 7, 7 'preventing the concrete from migrating relative to the elements. Depending on the load occurring, concrete can also be placed over the belts 4, in which case the transverse embossments 5 further increase the adhesion, so that migration of the concrete relative to the sheet metal profiles 1 is not possible. As can be seen from Fig. 4, no auxiliary support devices are used for assembly. A spreading of the webs is also in the case of elements that are not yet firmly attached to the support profiles, but rather only in the case of initially placed elements as a result of the corner impressions 7, 7 'and their “engagement dimension 10 with the transverse impressions 5, even under greater loads, for example by the assembly personnel , effectively prevented.

Die erfindungsgemäß gestalteten Blechprofile können vorteilhaft aus dünnen Blechen mit Dicken von 0,75 bis 2 mm hergestellt werden, wobei die Höhe 9 des Profiles, d.h. der Vertikalabstand des Obergurtes von den Auflagerflanschen 75 mm bis 250 mm je nach Belastung betragen kann. Die Gewichtsersparnis gegenüber herkömmlichen Blechprofilen, insbesondere Trapezprofilblechen - bei gleicher Belastbarkeit der Profile - ist beträchtlich, wie auch aus dem folgenden Beispiel hervorgeht.The sheet metal profiles designed according to the invention can advantageously be produced from thin sheets with thicknesses of 0.75 to 2 mm, the height 9 of the profile, i.e. the vertical distance of the top flange from the support flanges can be 75 mm to 250 mm depending on the load. The weight saving compared to conventional sheet metal profiles, in particular trapezoidal profile sheets - with the same load capacity of the profiles - is considerable, as can also be seen from the following example.

Für eine bestimmte vorgegebene Belastung wurde bisher ein Trapezprofilblech verwendet, welches eine Breite von 625 mm und eine Höhe von 100 mm aufwies. Diese Profile waren in bekannter Weise aus vier Auflagerflanschen, sechs Stegen und drei Obergurten zu meanderförmiger Gestalt geformt. Diese bekannten Profile wurden aus einem Blechband mit 1 250 mm Breite gefertigt. Als für die vorgegebene Belastung erforderliche Blechdicke ergab sich 0,88 mm. Dieses Blechprofil wurde unter Zugrundelegung der gleichen Belastung durch ein erfindungsgemäßes Element ersetzt. Die Höhe des erfindungsgemäßen Profils betrug bei gleicher Breite 175 mm. Das erfindungsgemäße Blechprofil wurde mit zwei Stegen, zwei Auflagerflanschen und einem Obergurt aus einem Blechband mit einer Breite von 1 000 mm und einer Stärke von 1 mm geformt. Das blechvolumen für 1 m Länge beträgt für das bekannte Trapezprofilblech 1 100 cm3, für das erfindungsgemäße Blechprofilelement hingegen nur 1 000 cm3. Somit ergibt sich bei Verwendung des erfindungsgemäßen Blechprofilelementes anstelle eines bisher üblicherweise verwendeten Trapezprofilbleches eine Einsparung von 10%. Diese Einsparung ist bei Verwendung von erfindungsgemäßen Blechprofilelementen größerer Höhe (für eine entsprechend größere Belastung) noch größer.Up to now, a trapezoidal profile sheet was used for a certain predetermined load, which had a width of 625 mm and a height of 100 mm. These profiles were formed in a known manner from four support flanges, six webs and three top chords into a meandering shape. These known profiles were made from a sheet metal strip with a width of 1 250 mm. The sheet thickness required for the specified load was 0.88 mm. This sheet profile was replaced on the basis of the same load by an element according to the invention. The height of the profile according to the invention was 175 mm with the same width. The sheet metal profile according to the invention was formed with two webs, two support flanges and an upper flange from a sheet metal strip with a width of 1,000 mm and a thickness of 1 mm. The sheet volume for 1 m length is 1,100 cm 3 for the known trapezoidal profile sheet, but only 1,000 cm 3 for the sheet profile element according to the invention. This results in a saving of 10% when using the sheet metal profile element according to the invention instead of a trapezoidal sheet metal that has been conventionally used up to now. This saving is even greater when using sheet metal profile elements according to the invention of greater height (for a correspondingly greater load).

Die Tiefe der Quer- und Eck-Einprägungen 5 und 7, 7' bzw. die Höhe der Aufwölbungen kann in weiten Bereichen, von einfacher bis mehrfacher Blechdicke, variieren, wobei vorteilhaft die Tiefe der Quer-Einprägungen 5 größer ist als die der Eck-Einprägungen 7, 7' im Kantenbereich.The depth of the transverse and corner impressions 5 and 7, 7 'or the height of the bulges can vary in wide ranges, from single to multiple sheet thicknesses, the depth of the transverse impressions 5 advantageously being greater than that of the corner impressions 7, 7 'in the edge region.

Die erfindungsgemäßen Blechprofile können verzinkt oder oberflächenveredelt werden. Sie können außer aus Stahl aus Leichtmetallegierungen hergestellt sein. Ihre Befestigung erfolgt mit Schrauben oder Setzbolzen. In der Konstruktion gemäß Fig. 4 sind die aufeinanderliegenden Flansche 2 miteinander vernietet.The sheet metal profiles according to the invention can be galvanized or surface-coated. In addition to steel, they can be made from light metal alloys. They are fastened with screws or set bolts. In the construction according to FIG. 4, the flanges 2 lying one on top of the other are riveted together.

Eine besonders hohe Gewichtseinsparung ergibt sich bei Verwendung der erfindungsgemä-Ben Blechprofilelemente für Deckenkonstruktionen, bei denen die von jeweils zwei benachbarten Elementen 1 gebildeten Mulden 15 mit Beton ausgegossen werden, gegenüber den bekannten Trapezprofilblechen, da bei den bekannten Trapezprofilblechen wesentlich mehr rinnenförmige Mulden mit insgesamt größerem Volumen ausgegossen werden mußten.A particularly high weight saving results when using the sheet metal profile elements according to the invention for ceiling constructions, in which the troughs 15 formed by two adjacent elements 1 are poured out with concrete, compared to the known trapezoidal profile sheets, since in the known trapezoidal profile sheets, significantly more trough-shaped troughs with a larger overall size Volume had to be poured out.

Claims (2)

1. Load-bearing, surface composing section .ekmxmt(1) of sheet or plate, in particular roof element for the production of hall roofs, comprising two outer supporting flanges (2, 2'), two webs (3, 3') departing therefrom, and an upper chord (4) connecting the webs (3, 3'), which upper chord has transverse engravements (5) arranged at a distance from one another transverse to the longitudinal extension of the element (1), characterized in that between two transverse engravements (5) each, of the upper chord (4), a corner engravement (7, 7') extending transverse to the longitudinal extension is each provided on both edges (6, 6') on the upper chord (4) and on the lateral webs (3, 3'), reaching about the edges (6, 6'), whose engraved rear wall is angled, wherein the transverse engravements (5) in the upper chord (4) end at a predetermined distance (11) from the webs (3, 3'), whereas the ends of the corner engravements (7, 7') extending into the upper chord (4) reach behind the transverse engravements (5).
2. Element according to claim 1, characterized in that the portions of the corner engravements (7, 7') extending into the webs (3, 3') reach over at least one third of the web height (9).
EP19800890034 1979-03-29 1980-03-14 Load-bearing, surface composing section element of sheet or plate Expired EP0017647B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2328/79 1979-03-29
AT232879A AT365269B (en) 1979-03-29 1979-03-29 SUPPORTING, AREA-FORMING SHEET PROFILE

Publications (2)

Publication Number Publication Date
EP0017647A1 EP0017647A1 (en) 1980-10-15
EP0017647B1 true EP0017647B1 (en) 1982-02-03

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EP (1) EP0017647B1 (en)
AT (1) AT365269B (en)
DE (1) DE3060169D1 (en)

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Publication number Priority date Publication date Assignee Title
EP0179150A1 (en) * 1984-04-30 1986-04-30 Aulis Lundell Oy Standard for partition
DE9104701U1 (en) * 1991-04-17 1991-08-22 Zambelli, Franz, 8352 Grafenau Roof covering consisting of sheet metal panels arranged side by side
DE19742603B4 (en) * 1997-09-26 2005-08-18 Volkswagen Ag Double-layered sheet for a motor vehicle
GR1004253B (en) * 2000-05-25 2003-06-04 Σεκιουριτυ Αλουμινουμ Ελλας Αβεε Metallic profiles (cross sections) for dry building with specialreinforcements for increasing their mechanical strength
US7707791B2 (en) 2004-03-05 2010-05-04 Reuven Peleg Roofing method for self supporting roofing plate
WO2016034906A1 (en) * 2014-09-05 2016-03-10 Hadley Industries Overseas Holdings Ltd. Profiles

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1129998A (en) 1954-04-22 1957-01-29 Improvements to floors, walls, and other similar walls
GB1249997A (en) 1968-09-26 1971-10-13 Brownbuilt Ltd Improvements in and relating to sheet structural roofing members
SE390045C (en) 1975-04-28 1984-07-09 Plannja Ab sheet profile

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ATA232879A (en) 1980-02-15
AT365269B (en) 1981-12-28
DE3060169D1 (en) 1982-03-11
EP0017647A1 (en) 1980-10-15

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