DE19504399C1 - Aluminium rod for bridge framework construction - Google Patents

Aluminium rod for bridge framework construction

Info

Publication number
DE19504399C1
DE19504399C1 DE1995104399 DE19504399A DE19504399C1 DE 19504399 C1 DE19504399 C1 DE 19504399C1 DE 1995104399 DE1995104399 DE 1995104399 DE 19504399 A DE19504399 A DE 19504399A DE 19504399 C1 DE19504399 C1 DE 19504399C1
Authority
DE
Germany
Prior art keywords
rod
reinforcement
framework construction
bridge framework
tube
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 - Fee Related
Application number
DE1995104399
Other languages
German (de)
Inventor
Hans-Norbert Dr Ing Wiedeck
Wolfgang Diefendahl
Johann Dipl Ing Matuschek
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.)
MT Aerospace AG
Original Assignee
Krupp Foerdertechnik GmbH
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 Krupp Foerdertechnik GmbH filed Critical Krupp Foerdertechnik GmbH
Priority to DE1995104399 priority Critical patent/DE19504399C1/en
Application granted granted Critical
Publication of DE19504399C1 publication Critical patent/DE19504399C1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K21/00—Making hollow articles not covered by a single preceding sub-group
    • B21K21/12—Shaping end portions of hollow articles
    • 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
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional framework structures
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/08—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders
    • 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
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional framework structures
    • E04B1/1903—Connecting nodes specially adapted therefor
    • E04B2001/1918—Connecting nodes specially adapted therefor with connecting nodes having flat radial connecting surfaces
    • 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
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional framework structures
    • E04B2001/1924—Struts specially adapted therefor
    • E04B2001/1927—Struts specially adapted therefor of essentially circular cross section
    • 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
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional framework structures
    • E04B2001/1924—Struts specially adapted therefor
    • E04B2001/1927—Struts specially adapted therefor of essentially circular cross section
    • E04B2001/193—Struts specially adapted therefor of essentially circular cross section with flattened connecting parts, e.g. ends
    • 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
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional framework structures
    • E04B2001/1957—Details of connections between nodes and struts
    • E04B2001/1963—Screw connections with axis at an angle, e.g. perpendicular, to the main axis of the strut
    • 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
    • E04C2003/0486—Truss like structures composed of separate truss elements
    • E04C2003/0491—Truss like structures composed of separate truss elements the truss elements being located in one single surface or in several parallel surfaces

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

Metal rod (5) made from a single piece of tube with the reinforcement section (6) produced simultaneously with the connection element (7). The reinforcement section is produced by pressure rolling. The tube and the connection element are made from an aluminium material. The rod forms the understrap (2) for a collapsible bridge.

Description

Die Erfindung bezieht sich auf einen aus einem Rohr gebildeten metallenen Stab für Fachwerke, der mindestens an einem Ende zur Anordnung eines Anschlußelementes eine Verstärkung seiner Wand aufweist.The invention relates to a tube formed metal rod for trusses, the least at one end for arranging a connection element Reinforcing its wall.

Stäbe dieser Art sind beispielsweise bekannt für Raum­ fachwerke. Als Verstärkung werden an den Enden der Stäbe besonders gefertigte Guß- oder Schmiedestücke zur Auf­ nahme der beweglichen Anschlußelemente, in der Regel Bolzen angeschweißt oder auf andere Weise fest verbunden angeordnet, die die Stäbe mit einem Knotenelement oder direkt miteinander verbinden. Solche Schweißnähte be­ deuten insbesondere bei einer dynamischen Beanspruchung, wie sie bei diesen Bauteilen häufig auftritt, eine erhebliche Verschwächung. Das gilt besonders für Stäbe, die aus einem Aluminiumwerkstoff bestehen.Bars of this type are known, for example, for space trusses. As reinforcement at the ends of the bars specially manufactured castings or forgings for opening took the movable connecting elements, usually Bolt welded or otherwise firmly connected arranged which the rods with a node element or connect directly to each other. Such welds be indicate especially with dynamic stress, as it often occurs with these components, one significant weakening. This is especially true for rods, which consist of an aluminum material.

Aus der DE 42 02 249 A1 ist es bereits vorbekannt, bei einem Fachwerk-Stab am inneren Auslauf seines Gewinde­ eingriffs für Deckelelemente, die zur Aufnahme eines Spannbolzens als Verbindungselement für die Verbindung mit einem Knotenelement dienen, das Stabende zur Redu­ zierung der Längsspannungen durch Anstauchen zu ver­ stärken. Teile wie derartige Deckelelemente, zugehörige bewegliche Druckmuffen und Spannbolzen weist der An­ meldungsgegenstand jedoch nicht auf.It is already known from DE 42 02 249 A1, at a truss rod at the inner outlet of its thread intervention for cover elements that hold a Clamping pin as a connecting element for the connection serve with a node element, the rod end to reduce adornment of the longitudinal stresses by upsetting strengthen. Parts such as cover elements, associated movable pressure sleeves and clamping bolts are indicated by the operator However, the subject of the report does not.

Der Erfindung liegt die Aufgabe zugrunde, einen Stab der eingangs genannten Art hinsichtlich seiner Dauer­ festigkeit zu verbessern. The invention has for its object a rod type mentioned in terms of its duration improve strength.  

Die Lösung der Aufgabe besteht darin, daß der Stab aus einem Stück gefertigt ist und daß die Verstärkung gleichzeitig das Anschlußelement einformt.The solution to the problem is that the rod is made of is made in one piece and that the reinforcement at the same time the connection element is molded.

Wenn erforderlich, kann hierbei die besondere Formgebung der Anschlußelemente, beispielsweise als Hammerkopf, Karabinerverschlußnocken oder deren jeweilige Gegen­ elemente, durch geeignete mechanische Bearbeitung erfol­ gen. Auf diese Weise wird ein besonders hochbelastbarer Stab hergestellt.If necessary, the special shape can be used the connection elements, for example as a hammer head, Lobster clasp cam or their respective counter elements, by suitable mechanical processing gen. In this way, a particularly heavy duty Rod made.

Gemäß einer Ausgestaltung der Erfindung ist vorgesehen, daß die Verstärkung durch Drückwalzen hergestellt ist. Dieses Herstellungsverfahren ermöglicht unterschiedliche Ausformungen der Verstärkung, angepaßt an die ver­ schiedenartig gestalteten Anschlußelemente.According to an embodiment of the invention, that the reinforcement is made by pressure rolling. This manufacturing process enables different Formations of the reinforcement, adapted to the ver differently designed connection elements.

Der neue Stab ermöglicht die Verwendung aller geeigneten metallenen Werkstoffe. Nach der Erfindung ist bevorzugt vorgesehen, daß das Rohr und die Anschlußelemente aus einem Aluminiumwerkstoff bestehen. Da die Schweiß­ verbindungen bei einem solchen Werkstoff in Bezug auf ihre Dauerfestigkeit besonders empfindlich sind, ist die erfindungsgemäße Vermeidung eines stumpfen Anschweißens des Anschlußelements bei der Verwendung von Aluminium­ werkstoffen, wobei es sich in der Regel um hochfeste Aluminiumlegierungen handelt, von besonderem Vorteil.The new rod enables the use of all suitable ones metallic materials. According to the invention is preferred provided that the tube and the connecting elements from an aluminum material. Because the sweat connections in relation to such a material their fatigue strength is particularly sensitive Avoiding butt welding according to the invention of the connection element when using aluminum materials, which are usually high-strength Aluminum alloys is of particular advantage.

Die Erfindung sieht weiter vor, den Stab bevorzugt als Ober- und/oder Untergurt für eine zerlegbare Brücke zu verwenden. Diese im Regelfall aus einem Aluminiumwerk­ stoff bestehenden Bauteile sind - besonders im Einsatz bei zerlegbaren Pionierbrücken - in hohem Maße Wechsel­ beanspruchungen ausgesetzt. The invention further provides the rod as preferred Upper and / or lower flange for a dismountable bridge use. This usually from an aluminum plant existing components are - especially in use with demountable pioneer bridges - to a large extent change exposed to stress.  

Die Verwendung des neuen Stabes beschränkt sich jedoch nicht auf zerlegbare u. a. Brücken. Vielmehr eröffnet dieser eine Reihe von Einsatzmöglichkeiten, wobei ins­ besondere Raumfachwerken im Vordergrund stehen.However, the use of the new staff is limited not on demountable u. a. Bridges. Rather opened this a number of possible uses, ins special spatial frameworks are in the foreground.

Im Hinblick auf die Verbesserung der Dauerfestigkeit ist es besonders vorteilhaft, wenn in an sich bekannter Weise beim Stab die Verstärkung zum Stabende hin an Wandstärke zunimmt.In order to improve fatigue strength it is particularly advantageous if in known per se For the staff, instruct the reinforcement towards the end of the staff Wall thickness increases.

Ein Ausführungsbeispiel des Stabes nach der Erfindung und seiner Verwendung sind in der Zeichnung schematisch dargestellt und nachfolgend erläutert. Es zeigen:An embodiment of the rod according to the invention and its use are schematic in the drawing shown and explained below. Show it:

Fig. 1 ein Fachwerkelement einer zerlegbaren Brücke in Seitenansicht; Figure 1 shows a truss element of a collapsible bridge in side view.

Fig. 2 das Stabende des in Fig. 1 als Untergurt einge­ setzten Stabes im Längsschnitt und in größerem Maßstab; Fig. 2 shows the rod end of the rod inserted in Fig. 1 as a lower chord in longitudinal section and on a larger scale;

Fig. 3 das Stabende nach Fig. 2 in Stirnansicht. Fig. 3 shows the rod end of FIG. 2 in front view.

Das in Fig. 1 dargestellte Fachwerkelement weist einen Obergurt 1, einen Untergurt 2 und vier Fachwerkstäbe 3 auf, die mit ihren Enden jeweils mit am Ober- bzw. Untergurt angeordneten Laschen 4 verschraubt sind. Der als Untergurt 2 eingesetzte rohrförmige Stab 5 weist an den Enden 5′ jeweils eine Verstärkung 6 auf, die zum Stabende hin zunimmt, wie es in Fig. 2 erkennbar ist. In dieser Ausführungsform ist als Anschlußelement ein Hammerkopf 7 in das Stabende gleichzeitig mit der Herstellung des Stabes 5 eingeformt. Das Anschlußelement dient zum Verbinden des Untergurts 2 mit einem benach­ barten Gegenelement, das in der Zeichnung nicht darge­ stellt ist. Zum Verbinden wird der Untergurt 2, und damit der Hammerkopf 5, um 90° gedreht, wie es Fig. 3 zeigt.The truss element shown in FIG. 1 has an upper chord 1 , a lower chord 2 and four truss bars 3 , the ends of which are screwed to tabs 4 arranged on the upper and lower chord, respectively. The tubular bar 5 used as the lower chord 2 has a reinforcement 6 at the ends 5 ', which increases towards the bar end, as can be seen in FIG. 2. In this embodiment, a hammer head 7 is molded into the rod end as a connecting element at the same time as the rod 5 is being produced. The connecting element is used to connect the lower flange 2 with a neigh disclosed counter element, which is not shown in the drawing. To connect the lower flange 2 , and thus the hammer head 5 , is rotated by 90 °, as shown in FIG. 3.

Claims (4)

1. Aus einem Rohr gebildeter metallener Stab für Fach­ werke, der mindestens an einem Ende zur Anordnung eines Anschlußelementes eine Verstärkung seiner Wand aufweist, dadurch gekennzeichnet, daß der Stab (5) aus einem Stück gefertigt ist und daß die Ver­ stärkung (6) gleichzeitig das Anschlußelement (7) einformt.1. From a tube formed metal rod for works, which has at least at one end for arranging a connecting element a reinforcement of its wall, characterized in that the rod ( 5 ) is made in one piece and that the United reinforcement ( 6 ) at the same time the connecting element ( 7 ) is molded. 2. Stab nach Anspruch 1, dadurch gekennzeichnet, daß die Verstärkung (6) durch Drückwalzen hergestellt ist.2. Bar according to claim 1, characterized in that the reinforcement ( 6 ) is made by spinning. 3. Stab nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Rohr (5) und die Anschlußelemente (7) aus einem Aluminiumwerkstoff bestehen.3. Rod according to claim 1 or 2, characterized in that the tube ( 5 ) and the connecting elements ( 7 ) consist of an aluminum material. 4. Verwendung des Stabes nach einem der vorhergehenden Ansprüche, insbesondere nach Anspruch 3, als Ober­ und/oder Untergurt (2) für eine zerlegbare Brücke.4. Use of the rod according to one of the preceding claims, in particular according to claim 3, as an upper and / or lower flange ( 2 ) for a dismountable bridge.
DE1995104399 1995-02-10 1995-02-10 Aluminium rod for bridge framework construction Expired - Fee Related DE19504399C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1995104399 DE19504399C1 (en) 1995-02-10 1995-02-10 Aluminium rod for bridge framework construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1995104399 DE19504399C1 (en) 1995-02-10 1995-02-10 Aluminium rod for bridge framework construction

Publications (1)

Publication Number Publication Date
DE19504399C1 true DE19504399C1 (en) 1996-09-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE1995104399 Expired - Fee Related DE19504399C1 (en) 1995-02-10 1995-02-10 Aluminium rod for bridge framework construction

Country Status (1)

Country Link
DE (1) DE19504399C1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012024199A1 (en) * 2012-12-10 2014-06-12 Boris Pushkin Rod element for forming mountable framework in e.g. building, has tube housing with area of variable intersection, where area is narrowed towards ends of housing such that area has smaller inner dimension than outer dimension of components
DE19946558B4 (en) * 1999-09-29 2016-10-27 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Support structure for bodies of motor vehicles

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4202249A1 (en) * 1992-01-28 1993-07-29 Erich Tausend Coaxial screw connector for scaffolding framework assemblies - has tubular struts with conical inserts for tensile and thrust forces and threaded spacer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4202249A1 (en) * 1992-01-28 1993-07-29 Erich Tausend Coaxial screw connector for scaffolding framework assemblies - has tubular struts with conical inserts for tensile and thrust forces and threaded spacer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19946558B4 (en) * 1999-09-29 2016-10-27 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Support structure for bodies of motor vehicles
DE102012024199A1 (en) * 2012-12-10 2014-06-12 Boris Pushkin Rod element for forming mountable framework in e.g. building, has tube housing with area of variable intersection, where area is narrowed towards ends of housing such that area has smaller inner dimension than outer dimension of components

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Legal Events

Date Code Title Description
8100 Publication of the examined application without publication of unexamined application
D1 Grant (no unexamined application published) patent law 81
8327 Change in the person/name/address of the patent owner

Owner name: KRUPP FOERDERTECHNIK GMBH, 45143 ESSEN, DE

8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: MAN TECHNOLOGIE AG, 86153 AUGSBURG, DE

8339 Ceased/non-payment of the annual fee