EP0208651B1 - Frame for a dome-like roof - Google Patents

Frame for a dome-like roof Download PDF

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Publication number
EP0208651B1
EP0208651B1 EP86810227A EP86810227A EP0208651B1 EP 0208651 B1 EP0208651 B1 EP 0208651B1 EP 86810227 A EP86810227 A EP 86810227A EP 86810227 A EP86810227 A EP 86810227A EP 0208651 B1 EP0208651 B1 EP 0208651B1
Authority
EP
European Patent Office
Prior art keywords
ribs
sections
skeleton according
circular
girder sections
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.)
Expired
Application number
EP86810227A
Other languages
German (de)
French (fr)
Other versions
EP0208651A1 (en
Inventor
Werner Rieder
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.)
Alcan Holdings Switzerland AG
Original Assignee
Schweizerische Aluminium 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 Schweizerische Aluminium AG filed Critical Schweizerische Aluminium AG
Priority to AT86810227T priority Critical patent/ATE46736T1/en
Publication of EP0208651A1 publication Critical patent/EP0208651A1/en
Application granted granted Critical
Publication of EP0208651B1 publication Critical patent/EP0208651B1/en
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/32—Arched structures; Vaulted structures; Folded structures
    • E04B1/3211—Structures with a vertical rotation axis or the like, e.g. semi-spherical structures
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B7/00—Roofs; Roof construction with regard to insulation
    • E04B7/08—Vaulted roofs
    • E04B7/10—Shell structures, e.g. of hyperbolic-parabolic shape; Grid-like formations acting as shell structures; Folded structures
    • E04B7/105—Grid-like structures
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/32—Arched structures; Vaulted structures; Folded structures
    • E04B2001/3235—Arched structures; Vaulted structures; Folded structures having a grid frame
    • E04B2001/3241—Frame connection details
    • E04B2001/3247—Nodes
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/32—Arched structures; Vaulted structures; Folded structures
    • E04B2001/3235—Arched structures; Vaulted structures; Folded structures having a grid frame
    • E04B2001/3252—Covering details
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/32—Arched structures; Vaulted structures; Folded structures
    • E04B2001/3294—Arched structures; Vaulted structures; Folded structures with a faceted surface
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/34—Branched
    • Y10T403/347—Polyhedral
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/44—Three or more members connected at single locus
    • Y10T403/443—All encompassed

Definitions

  • the invention relates to a skeleton, in particular for dome-shaped roofs, consisting of support profiles which run together in a star shape at node points and are fastened to one another by means of circular blanks and form a multiplicity of irregular triangles and optionally quadrilaterals, two plate-shaped circular blanks being used at the nodes.
  • Dome-shaped roofs for covering round structures such as tanks, clarifiers, but also halls and the like, which can reach up to 100 m in diameter, are known.
  • the supporting structure or the framework consists of support elements that have a large number of irregular triangles, some of them. if necessary, also form quadrilaterals, and are connected to one another in a bending-resistant manner.
  • This framework supports the actual roof skin, e.g. made of sheet metal, which are attached to the brackets using special clamping strips. If necessary, such roofs can be equipped with accessories such as overpressure and vacuum membrane valves, ventilation hoods, manholes, sockets or catwalks, work platforms, etc.
  • the inventor has set itself the goal of providing a frame of the type mentioned at the outset which, while maintaining the same strength, enables a reduction in weight and can be produced more cost-effectively by the corresponding material savings.
  • a framework according to claim 1 leads to the achievement of the object according to the invention. It has proven to be advantageous to provide the hollow profiles used as supports with internal longitudinal stiffening ribs.
  • the dome-shaped roof structure 1 is composed by support profiles 2, which are connected at their ends to form circular joints 3 on round plates 4.
  • the profiles 2 form a multitude of irregular triangles underneath, whereby they can also determine square fields on the roof circumference.
  • six profiles 2 usually meet in a star shape at the nodes 3, and four or five profiles 2 also meet on the roof circumference.
  • a favorable cross section of the carrier profiles 2 is shown in FIG. 4: it is a hollow profile of a quadrangular cross section, the height of which is greater than the width.
  • the hollow profile 2 has on the inside on its side walls 6, 7 and on its lower sole 8 longitudinal stiffening ribs 9.
  • the thickness of the sole 8 is advantageously thicker than that of the side walls 6 and 7.
  • the upper wall 10 of the hollow support profile is expediently at least as thick as the sole 8.
  • This upper wall 10 has an outwardly directed longitudinal rib 11 on both sides of its center line Which ribs provide a support surface for the formwork sheets 12, and also between the ribs a longitudinal thickening 13 into which internal threads for bolts 14 can be cut.
  • a cover strip 15, which is fastened to the support profiles 2 with the screw bolts 14, is used to fix the formwork sheets 12. As is normally the case, the joint between the cover strip and sheet metal is sealed, for which purpose the cover strip 15 can be provided with sealing profiles 17.
  • an upper circular 4 and a lower circular 5 serve to connect the profiles 2 meeting at the node 3, at least one of them, here the lower round blank 4, has a hand hole 17.
  • the ends of the profiles 2 are chamfered laterally so that they can be brought far enough towards the center of the round plates 4, 5.
  • the resulting beveled surfaces 18, which also trim the inner stiffening ribs 9, are also visible in FIG. 3.
  • the ribs 11 and any protruding thickenings 13 are cut back on the upper wall 10 of the profiles 2, so that this wall 10 offers a flat contact surface for the upper circular blank 4.
  • bolts can then be pushed through holes made on the upper wall 10 and on the sole 8 of the profiles 2 and on the upper and lower round plates 4 and 5 for a provisional holding together.
  • locking ring bolts 19 are used for the definitive fastening instead of the provisional screw bolts and fastened from above or below.
  • the framework has high stability.
  • the upper circular blank 4 has recesses 22 on its edge, into which the ends of the ribs 11 can be inserted.
  • the projections 23 remaining between these recesses 22 are so long that the round diameter resulting there is approximately the same as that of the cover 20.
  • the thickness of the upper circular blank 4 is as large as the height of the support ribs 11, as a result of which the surfaces of the projections 23 and the ribs 11 are flush with one another and also form a flat contact surface for the narrow sides 24 of the shuttering surface 12 between the support profiles 2 .
  • the joint between the cover 20 and the supported edge of the sheet 12 can be sealed properly and permanently.
  • the upper round blank 4 also has a screw hole 25 which, of course before the cover 20 is attached, at selected nodes, e.g. can be used for the temporary fixing of eyebolts, on which suspension ropes of a rope sling can engage for the purpose of lifting and installing the finished cathedral roof on a building.
  • the edge 26 of the hand hole 17 is rounded in the direction of the upper round 3, as a reinforcement for the round and as a protective measure for the hand of the fitter.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Tents Or Canopies (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)

Abstract

A frame, in particular for dome shaped roofs, is made up of support sections which run together at junction points where they are joined together; rectangular hollow sections are employed as the support sections and at each junction point two dish-shaped plates at least one of which features a hole providing access by hand to introduce joining means such as threaded bolts, locking ring bolts to attach the ends of the hollow sections to the round plates.

Description

Die Erfindung betrifft ein Gerippe, insbesondere für domförmige Dächer, bestehend aus Trägerprofilen, die untereinander sternförmig an Knotenpunkten zusammenlaufen und miteinander mittels Ronden aneinander befestigt sind und eine Vielzahl von unregelmässigen Dreiecken und gegebenenfalls Vierecken bilden, wobei bei den Knotenpunkten je zwei tellerförmige Ronden verwendet werden.The invention relates to a skeleton, in particular for dome-shaped roofs, consisting of support profiles which run together in a star shape at node points and are fastened to one another by means of circular blanks and form a multiplicity of irregular triangles and optionally quadrilaterals, two plate-shaped circular blanks being used at the nodes.

Domförmige Dächer zur Abdeckung von runden Bauwerken, wie Tanks, Klärbecken, aber auch Hallen u.dgl., die bis über 100 m Durchmesser erreichen können, sind bekannt. Dabei besteht die Tragkonstruktion oder das Gerippe aus Trägerelementen, die eine Vielzahl unregelmässiger Dreiecke, z.T. gegebenenfalls auch Vierecke bilden, und in Knotenpunkten biegefest miteinander verbunden sind. Dieses Gerippe trägt die eigentliche Dachhaut, z.B. aus Blechen, welche mittels speziellen Klemmleisten auf den Trägern befestigt werden. Bei Bedarf können solche Dächer mit Zubehören ausgestattet werden, wie Über-und Unterdruckmembranventilen, Lüftungshauben, Mannlöcher, Stutzen oder aber Laufstegen, Arbeitsplattformen usw.Dome-shaped roofs for covering round structures, such as tanks, clarifiers, but also halls and the like, which can reach up to 100 m in diameter, are known. The supporting structure or the framework consists of support elements that have a large number of irregular triangles, some of them. if necessary, also form quadrilaterals, and are connected to one another in a bending-resistant manner. This framework supports the actual roof skin, e.g. made of sheet metal, which are attached to the brackets using special clamping strips. If necessary, such roofs can be equipped with accessories such as overpressure and vacuum membrane valves, ventilation hoods, manholes, sockets or catwalks, work platforms, etc.

Ein Gerippe der eingangs erwähnten Art ist aus der US-A-3 909 994 bekannt. Die Trägerprofile sind dort als Doppel-T-Profile ausgebildet und ermöglichen auf diese Weise eine einfache und von aussen gut zugängliche Verschraubung mit den tellerförmigen Ronden. Nachteilig bei dieser Bauart ist die relativ schwere und daher kostspielige Konstruktion.A framework of the type mentioned in the opening paragraph is known from US-A-3 909 994. The carrier profiles are designed as double-T profiles and in this way enable simple and easily accessible screwing with the plate-shaped circular blanks. A disadvantage of this design is the relatively heavy and therefore expensive construction.

Angesichts dieser Gegebenheiten hat sich der Erfinder das Ziel gesetzt, ein Gerippe der eingangs erwähnten Art bereitzustellen, welches bei gleichbleibender Festigkeit eine Gewichtsverminderung ermöglicht und durch die entsprechende Materialeinsparung kostengünstiger hergestellt werden kann.In view of these circumstances, the inventor has set itself the goal of providing a frame of the type mentioned at the outset which, while maintaining the same strength, enables a reduction in weight and can be produced more cost-effectively by the corresponding material savings.

Zur erfindungsgemässen Lösung der Aufgabe führt ein Gerippe gemäss Anspruch 1. Es hat sich als günstig erwiesen, die als Träger verwendeten Hohlprofile mit inneren längsverlaufenden Versteifungsrippen zu versehen.A framework according to claim 1 leads to the achievement of the object according to the invention. It has proven to be advantageous to provide the hollow profiles used as supports with internal longitudinal stiffening ribs.

Die Erfindung soll nun nachstehend anhand eines Ausführungsbeispiels und der entsprechenden Figuren näher erläutert werden.The invention will now be explained in more detail below using an exemplary embodiment and the corresponding figures.

Es zeigen:

  • Fig. 1 Eine Perspektivansicht auf das Gerippe eines domförmigen Daches.
  • Fig. 2 Einen durch einen Knotenpunkt des Gerippes verlaufenden Querschnitt der fertigen Bedachung mit zwei Trägerprofilen in Seitenansicht dargestellt.
  • Fig. 3 Eine Draufsicht auf den Knotenpunkt nach Figur 2, und zwar in der linken Hälfte auf die fertige Bedachung und in der rechten Hälfte auf das nackte Gerippe.
  • Fig. 4 Einen Querschnitt durch ein Trägerprofil nach Linie A - B von Fig. 3.
Show it:
  • Fig. 1 is a perspective view of the skeleton of a dome-shaped roof.
  • Fig. 2 shows a cross-section of the finished roofing with two support profiles running through a node of the framework in side view.
  • Fig. 3 is a plan view of the node of Figure 2, in the left half of the finished roofing and in the right half of the bare skeleton.
  • 4 shows a cross section through a carrier profile along line A - B of FIG. 3.

Wie aus Figur 1 ersichtlich, wird das domförmige Dachgerippe 1 durch Trägerprofile 2 zusammengesetzt, die an ihren Enden unter Bildung von Knotenpunkten 3 an Ronden 4 biegefest verbunden sind. Unter sich bilden die Profile 2 eine Vielzahl von unregelmässigen Dreiecken, wobei sie am Dachumfang auch viereckige Felder bestimmen können. Im eigentlichen Dom treffen sich bei den Knotenpunkten 3 üblicherweise sechs Profile 2 sternförmig, am Dachumfang auch vier oder fünf Profile 2.As can be seen from FIG. 1, the dome-shaped roof structure 1 is composed by support profiles 2, which are connected at their ends to form circular joints 3 on round plates 4. The profiles 2 form a multitude of irregular triangles underneath, whereby they can also determine square fields on the roof circumference. In the actual cathedral, six profiles 2 usually meet in a star shape at the nodes 3, and four or five profiles 2 also meet on the roof circumference.

Ein günstiger Querschnitt der Trägerprofile 2 ist in Fig. 4 dargestellt: es handelt sich dabei um ein Hohlprofil viereckigen Querschnitts, dessen Höhe grösser ist als die Breite. Inwendig weist das Hohlprofil 2 auf seinen Seitenwänden 6, 7 sowie an seiner unteren Sohle 8 längsverlaufende Versteifungsrippen 9 auf. Die Dicke der Sohle 8 ist vorteilhafterweise stärker als diejenige der Seitenwände 6 und 7. Die obere Wand 10 des hohlen Trägerprofils ist zweckmässigerweise mindestens so dick wie die Sohle 8. Diese obere Wand 10 weist beidseitig seiner Mittellinie je eine nach aussen gerichtete längsverlaufende Rippe 11 auf, welche Rippen eine Abstützungsfläche für die Verschalungsbleche 12 liefern, und ferner zwischen den Rippen eine längsverlaufende Verdickung 13, in welche Innengewinde für Schraubenbolzen 14 eingeschnitten werden können. Zur Fixierung der Verschalungsbleche 12 dient eine Deckleiste 15, welche mit den Schraubenbolzen 14 an den Trägerprofilen 2 befestigt wird. Wie es sich normalerweise gehört, wird die Fuge zwischen Deckleiste und Blech abgedichtet, wozu die Deckleiste 15 mit Dichtungsprofilen 17 versehen werden kann.A favorable cross section of the carrier profiles 2 is shown in FIG. 4: it is a hollow profile of a quadrangular cross section, the height of which is greater than the width. The hollow profile 2 has on the inside on its side walls 6, 7 and on its lower sole 8 longitudinal stiffening ribs 9. The thickness of the sole 8 is advantageously thicker than that of the side walls 6 and 7. The upper wall 10 of the hollow support profile is expediently at least as thick as the sole 8. This upper wall 10 has an outwardly directed longitudinal rib 11 on both sides of its center line Which ribs provide a support surface for the formwork sheets 12, and also between the ribs a longitudinal thickening 13 into which internal threads for bolts 14 can be cut. A cover strip 15, which is fastened to the support profiles 2 with the screw bolts 14, is used to fix the formwork sheets 12. As is normally the case, the joint between the cover strip and sheet metal is sealed, for which purpose the cover strip 15 can be provided with sealing profiles 17.

Die Art und Weise, wie mit den beschriebenen Hohlprofilen 2 ein Knotenpunkt 3 verwirktlicht werden kann, lässt sich anhand der Figuren 3 und 4 erläutern: für die Verbindung der sich beim Knotenpunkt 3 treffenden Profile 2 dient eine obere Ronde 4 sowie eine untere Ronde 5, wobei mindestens eine davon, hier die untere Ronde 4, ein Handloch 17 aufweist.The manner in which a node 3 can be realized with the hollow profiles 2 described can be explained with reference to FIGS. 3 and 4: an upper circular 4 and a lower circular 5 serve to connect the profiles 2 meeting at the node 3, at least one of them, here the lower round blank 4, has a hand hole 17.

Wie in Fig. 3 gezeigt, werden die Enden der Profile 2 seitlich abgeschrägt, damit sie weit genug gegen die Mitte der Ronden 4, 5 herangeführt werden können. Die daraus resultierenden Abschrägungsflächen 18, die auch die inneren Versteifungsrippen 9 beschneiden, sind auch in Fig. 3 sichtbar. Im weiteren werden auf der oberen Wand 10 der Profile 2 die Rippen 11 und die gegebenenfalls vorspringenden Verdickungen 13 zurückgeschnitten, damit diese Wand 10 eine ebene Auflagefläche für die obere Ronde 4 bietet. Durch das Handloch 17 können dann für ein provisorisches Zusammenhalten Schraubenbolzen durch an der oberen Wand 10 und an der Sohle 8 der Profile 2 sowie an der oberen und unteren Ronde 4 bzw. 5 angebrachte Bohrungen durchgesteckt werden. Wenn das Gerippe 1 bzw. etappenweise ein Teil davon auf diese Art zusammengesetzt ist und die Trägerprofile 2 untereinander den passenden Winkel eingenommen haben, so werden für die definitive Befestigung anstelle der provisiorischen Schraubenbolzen Schliessringbolzen 19 eingesetzt und von oben bzw. unten festgemacht. Im gezeigten Ausführungsbeispiel sind es für jedes Profil je vier Schliessringbolzen 19 für die Verbindung zur oberen, bzw. zur unteren Ronde 4 bzw. 5. Hierdurch wird zwischen den Bauteilen ein biegefester Zusammenhalt erreicht. Ferner erreicht das Gerippe dank der Verwendung der beschriebenen hohlen Trägerprofile eine hohe Stabilität.As shown in Fig. 3, the ends of the profiles 2 are chamfered laterally so that they can be brought far enough towards the center of the round plates 4, 5. The resulting beveled surfaces 18, which also trim the inner stiffening ribs 9, are also visible in FIG. 3. Furthermore, the ribs 11 and any protruding thickenings 13 are cut back on the upper wall 10 of the profiles 2, so that this wall 10 offers a flat contact surface for the upper circular blank 4. Through the hand hole 17, bolts can then be pushed through holes made on the upper wall 10 and on the sole 8 of the profiles 2 and on the upper and lower round plates 4 and 5 for a provisional holding together. If the skeleton 1 or a part of it is assembled in this way and the support profiles 2 have taken the appropriate angle with one another, then locking ring bolts 19 are used for the definitive fastening instead of the provisional screw bolts and fastened from above or below. In the exemplary embodiment shown, there are four locking ring bolts 19 for each profile for the connection to the upper or lower round plate 4 or 5. This results in a bending-resistant cohesion between the components. In addition, thanks to the use of the hollow support profiles described, the framework has high stability.

Nach Verlegen der die Dachhaut bildenden Bleche 12 auf das fertige Gerippe 1 wird der Bereich der Knotenpunkte 3 jeweils durch eine Haube 20 abgedeckt, die mittels an den Deckleisten 15 bzw. durch diese hindurch an die Tragprofile 2 befestigten, z.B. verschraubten Klemmstücke 21 festgehalten wird.After laying the sheets 12 forming the roof skin on the finished frame 1, the area of the knot ten points 3 each covered by a hood 20 which is held by means of, for example, screwed clamping pieces 21 attached to the cover strips 15 or through this to the support profiles 2.

Im dargestellten Ausführungsbeispiel weist die obere Ronde 4 auf ihrem Rand Ausnehmungen 22 auf, in welche die Enden der Rippen 11 eingeführt werden können. Die zwischen diesen Ausnehmungen 22 verbleibenden Vorsprünge 23 sind so lang, dass der sich dort ergebende Rondendurchmesser etwa demjenigen der Abdeckhaube 20 gleicht. Mindestens bei diesen Vorsprüngen 23 ist die Dicke der oberen Ronde 4 so gross wie die Höhe der Abstützungsrippen 11, wodurch die Oberflächen der Vorsprünge 23 und der Rippen 11 miteinander fluchten und eine ebene Auflagefläche für die Schmalseiten 24 der Verschalungsfläche 12 auch zwischen den Tragprofilen 2 bilden. Als Folge davon lässt sich die Fuge zwischen der Abdeckhaube 20 und dem unterstütztem Rand des Bleches 12 einwandfrei und dauerhaft abdichten. Im weiteren weist die obere Ronde 4 noch ein Schraubenloch 25 auf, das, - selbstverständlich vor Aufsetzen der Abdeckhaube 20 -, an ausgewählten Knotenpunkten z.B. zur vorübergehenden Fixierung von Tragösen benutzt werden kann, an welche Tragseile eines Seilgehanges eingreifen können zwecks Heben und Installieren des fertigen Domdachs auf einem Bauwerk.In the exemplary embodiment shown, the upper circular blank 4 has recesses 22 on its edge, into which the ends of the ribs 11 can be inserted. The projections 23 remaining between these recesses 22 are so long that the round diameter resulting there is approximately the same as that of the cover 20. At least in the case of these projections 23, the thickness of the upper circular blank 4 is as large as the height of the support ribs 11, as a result of which the surfaces of the projections 23 and the ribs 11 are flush with one another and also form a flat contact surface for the narrow sides 24 of the shuttering surface 12 between the support profiles 2 . As a result, the joint between the cover 20 and the supported edge of the sheet 12 can be sealed properly and permanently. In addition, the upper round blank 4 also has a screw hole 25 which, of course before the cover 20 is attached, at selected nodes, e.g. can be used for the temporary fixing of eyebolts, on which suspension ropes of a rope sling can engage for the purpose of lifting and installing the finished cathedral roof on a building.

Bei der unteren Ronde 5 ist der Rand 26 des Handlochs 17 in Richtung obere Ronde 3 abgerundet, dies als Verstärkung für die Ronde und als Schutzmassnahme für die Hand des Monteurs.In the case of the lower round 5, the edge 26 of the hand hole 17 is rounded in the direction of the upper round 3, as a reinforcement for the round and as a protective measure for the hand of the fitter.

Claims (6)

1. Skeleton, in particular for dome-shaped roofs, composed of girder sections (2) which mutually intersect in a stellar manner at junction points (3) and are fixed to each other by means of circular blanks (4, 5) and form a multiplicity of irregular triangles and in some cases quadrilaterals, two plate-shaped circular blanks (4, 5) being used at each of the junction points, characterized in that hollow sections of substantially rectangular cross section are used as girder sections (2) and at least one of the circular blanks (4, 5) possesses a handhold (17) in its centre, through which fixing means (19) such as rivets, locking ring bolts, threaded bolts or the like can be introduced in order to fix the ends of the section (2) to the circular blanks (4 and 5).
2. Skeleton according to Claim 1, characterized in that the hollow girder sections (2) possess, on their inside, longitudinally extending reinforcing ribs (9) on their lateral walls (6, 7) and/or on their base (8).
3. Skeleton according to Claim 1 or 2, characterized in that the girder sections (2) possess tow projecting ribs (11) on their upper wall (10) to support the covering sheet (12).
4. Skeleton according to Claim 3, characterized in that the girder sections possess, on their upper wall (10) between the projecting ribs (11), a a thickening (13) for the provision of female threads for threaded bolts (14).
5.Skeleton according to one of Claims 3 or 4, characterized in that the ribs (11) and the optionally projecting thickening (13) are cut back in the region of the junction points and, as a result, the upper wall (10) of the sections (2) forms a level bearing surface for the upper circular blank (4).
6. Skeleton according to one of Claims 1 to 5, characterized in that the upper circular blank possesses projections (23) which extend between the remaining ends of the ribs (11), and in that their upper surface is flush with that of the ribs (11) and forms with the latter a level bearing surface for the sheet (12).
EP86810227A 1985-06-10 1986-05-28 Frame for a dome-like roof Expired EP0208651B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86810227T ATE46736T1 (en) 1985-06-10 1986-05-28 FRAME FOR DOME-SHAPED ROOFING.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH244385 1985-06-10
CH2443/85 1985-06-10

Publications (2)

Publication Number Publication Date
EP0208651A1 EP0208651A1 (en) 1987-01-14
EP0208651B1 true EP0208651B1 (en) 1989-09-27

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EP86810227A Expired EP0208651B1 (en) 1985-06-10 1986-05-28 Frame for a dome-like roof

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US (1) US4698941A (en)
EP (1) EP0208651B1 (en)
AT (1) ATE46736T1 (en)
DE (1) DE3665899D1 (en)

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FR2666603A1 (en) * 1990-09-12 1992-03-13 Jacquemin Guillaume Daniel Assembly device for a polygonal framework
GB2277539B (en) * 1993-04-27 1996-07-17 Ramco Ykk Truss structure
DE29502486U1 (en) * 1995-02-15 1995-04-27 Fischer, Klaus, 74388 Talheim Staff knot
US6748712B2 (en) * 2002-06-14 2004-06-15 Usg Interiors, Inc. Scalable suspension system for dome shaped ceilings
US7152384B1 (en) * 2002-09-10 2006-12-26 Mccarty Gerald Joseph Dome kit, structure and method
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EP0208651A1 (en) 1987-01-14
DE3665899D1 (en) 1989-11-02
US4698941A (en) 1987-10-13
ATE46736T1 (en) 1989-10-15

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