EP0461450B1 - Rohrförmiger Fachwerkstab, insbesondere in dünnwandiger Ausführung für Raumfachwerke - Google Patents

Rohrförmiger Fachwerkstab, insbesondere in dünnwandiger Ausführung für Raumfachwerke

Info

Publication number
EP0461450B1
EP0461450B1 EP91108542A EP91108542A EP0461450B1 EP 0461450 B1 EP0461450 B1 EP 0461450B1 EP 91108542 A EP91108542 A EP 91108542A EP 91108542 A EP91108542 A EP 91108542A EP 0461450 B1 EP0461450 B1 EP 0461450B1
Authority
EP
European Patent Office
Prior art keywords
members
annular
tubular
screw head
case
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 - Lifetime
Application number
EP91108542A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0461450A1 (de
Inventor
Helmut Dr. Eberlein
Reinhard Schmidek
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.)
Mero Raumstruktur GmbH and Co
Original Assignee
Mero Raumstruktur GmbH and Co
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 Mero Raumstruktur GmbH and Co filed Critical Mero Raumstruktur GmbH and Co
Publication of EP0461450A1 publication Critical patent/EP0461450A1/de
Application granted granted Critical
Publication of EP0461450B1 publication Critical patent/EP0461450B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional [3D] framework structures
    • E04B1/1903—Connecting nodes specially adapted therefor
    • 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 [3D] 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 [3D] framework structures
    • E04B2001/1957—Details of connections between nodes and struts
    • E04B2001/196—Screw connections with axis parallel to the main axis of the strut

Definitions

  • the invention relates to a tubular truss rod, in particular a thin-walled design for space trusses, the rods of which are connected at the nodes by respective head screws protruding from the ends of each rod with corresponding threaded bores, the head screws being rotatable and axially displaceable in the end regions of the rods are stored and their axial displacement to the outside is limited by a stop in the end region of each rod, the stop being formed by an end portion of the tubular rods, which is bent inwards into the cavity of the rods
  • the invention has for its object to avoid the above disadvantages and to take measures to markedly reduce the deformability of the end sections and to increase the bending stiffness of the rods in the connection area.
  • each end portion which is bent inward into the hollow space of the tubular rods engages in a coaxial annular groove on the inner annular end face of the screw head and the annular, coaxial projection which adjoins the groove radially outward Grips the screw head in a form-fitting manner.
  • the bending stiffness of the rods in the connection area is further improved if the end section projecting into the interior of each tubular rod fills the clear cross section of the annular groove in the screw head appropriately.
  • the desired positive connection between the rod end and the screw head is facilitated in that the inner edges of the annular groove and / or the annular projection on the screw head are rounded.
  • FIG. 1 shows the connection of, for example, a cylindrical tubular rod 10 to a knot piece 11 by means of a cap screw 12.
  • a cylindrical tubular rod 10 to a knot piece 11 by means of a cap screw 12.
  • the rods 10 can consist of relatively thin-walled metal tubes for these applications.
  • the node piece 11 has numerous threaded bores 13 intersecting with its axes in the center thereof and a corresponding number of flats 14 which surround the threaded bores 13 on the outside and form contact surfaces for one end face 15 of a drive sleeve 16 for the cap screw 12.
  • the cap screw 12 is screwed with its threaded portion 17 into one of the threaded bores 13.
  • the head screw 12 sits axially displaceably with its shaft 18, but non-rotatably in the through bore 19 of the drive sleeve 16.
  • the head screw 12 is rotatably and axially displaceable in the end region of the rod 10 before the assembly described above.
  • the cap screw 12 has an essentially cylindrical head 25, on the inner annular end face of which a coaxial annular groove 26 is formed.
  • An annular projection 27 of the screw head 25 adjoins this groove 26 radially outward.
  • the tubular rod 10 has at both ends inward in its cavity by an angle of 180 0 bent end portions 21, each forming a stop for the cap screw 12 to limit its axial displacement to the outside.
  • the end section 21 projecting into the interior or into the cavity of the rod 10 fits into the clear cross-section of the groove 26 in the screw head 25, the end section 21 being the annular projection 27 on the screw head 25 includes.
  • the drive sleeve 16 is clamped between the node piece 11 and the rounded end edge 28 of the rod 10.
  • the inner edges 29 or the base of the annular groove 26 and the annular projection 27 on the screw head 25 are preferably rounded.
  • Both ends of the rod 10 are of the same design and the two cap screws 12 are inserted into the cavity of the rod 10 before the end sections 21 are bent inwards.
  • the rods 10a and 10b of the exemplary embodiments shown in FIGS. 4 and 5 have conical ends 30 which carry the end sections 21 which are bent inwards into the cavity of these ends 30.
  • the cap screws 12 with the grooves 26, into which these end sections 21 also engage when the screw connection is produced, are not shown in FIGS. 4 and 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Body Structure For Vehicles (AREA)
  • Rod-Shaped Construction Members (AREA)
EP91108542A 1990-06-15 1991-05-24 Rohrförmiger Fachwerkstab, insbesondere in dünnwandiger Ausführung für Raumfachwerke Expired - Lifetime EP0461450B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4019243A DE4019243C1 (enExample) 1990-06-15 1990-06-15
DE4019243 1990-06-15

Publications (2)

Publication Number Publication Date
EP0461450A1 EP0461450A1 (de) 1991-12-18
EP0461450B1 true EP0461450B1 (de) 1992-12-23

Family

ID=6408517

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91108542A Expired - Lifetime EP0461450B1 (de) 1990-06-15 1991-05-24 Rohrförmiger Fachwerkstab, insbesondere in dünnwandiger Ausführung für Raumfachwerke

Country Status (6)

Country Link
EP (1) EP0461450B1 (enExample)
AT (1) ATE83820T1 (enExample)
DE (2) DE4019243C1 (enExample)
DK (1) DK0461450T3 (enExample)
ES (1) ES2037567T3 (enExample)
GR (1) GR3006818T3 (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4202249C2 (de) * 1992-01-28 1998-10-29 Erich Tausend Koaxial verschraubte Stabverbindung für Fachwerkkonstruktionen
DE102016102643B3 (de) * 2016-02-15 2017-05-11 Stefan OGINSKI Stabförmige Baugruppe mit Umkrempelung sowie Verfahren zur Herstellung der stabförmigen Baugruppe und Verwendung eines Mantels aus Gewebelage zum Bilden der Umkrempelung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8703940U1 (de) * 1987-03-16 1987-06-11 Kreusel, Ulrich, 6531 Gensingen Gelenkverbindung für Rohre
DE3830738A1 (de) * 1988-09-09 1990-03-22 Mero Raumstruktur Gmbh & Co Rohrfoermiger fachwerkstab, insbesondere in duennwandiger ausfuehrung fuer raumfachwerke

Also Published As

Publication number Publication date
DE59100021D1 (de) 1993-02-04
ATE83820T1 (de) 1993-01-15
DE4019243C1 (enExample) 1991-09-19
EP0461450A1 (de) 1991-12-18
GR3006818T3 (enExample) 1993-06-30
DK0461450T3 (da) 1993-02-15
ES2037567T3 (es) 1993-06-16

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