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DE406193C - Wood connection by ring dowel - Google Patents

Wood connection by ring dowel

Info

Publication number
DE406193C
DE406193C DEL56519D DEL0056519D DE406193C DE 406193 C DE406193 C DE 406193C DE L56519 D DEL56519 D DE L56519D DE L0056519 D DEL0056519 D DE L0056519D DE 406193 C DE406193 C DE 406193C
Authority
DE
Germany
Prior art keywords
timber
fiber
pressure
dowel
groove
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
DEL56519D
Other languages
German (de)
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.)
Dr-Ing Dr Viktor Lewe
Original Assignee
Dr-Ing Dr Viktor Lewe
Publication date
Priority to DEL56519D priority Critical patent/DE406193C/en
Application granted granted Critical
Publication of DE406193C publication Critical patent/DE406193C/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38Connections for building structures in general
    • E04B1/48Dowels, i.e. members adapted to penetrate the surfaces of two parts and to take the shear stresses

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)

Description

Holzverbindung durch Ringdübel. Bei den Knotenpunkten hölzerner Fachwerkträger sind die durch die bekannten Ringdübel in den Nutenwandungen ausgeübten Drücke z. T. schräg zur Holzfaser gerichtet. Die Abb. 3 zeigt beispielsweise eine übliche Knotenpunktausbildung mit einteiligem Untergurt u und zweiteiligem Schrägstab d. Schrägstab und Untergurt werden durch in Kreisnuten eingelegte Ringdübel und Bolzen miteinander verbunden. DervomRingdübelauf die Nutwandungen des Untergurtholze.s ausgeübte Leibungsdruck ist schräg zur Holzfaser gerichtet, während in dem Schrägstab der Leibungsdruck gleichlaufend mit der Faser ist. Zur besseren Ausnutzung des in der Richtung der Holzfasern größeren zulässigen Leibungsdrucks wird deshalb nach der Erfindung die Nuttiefe b in dem Holze, welches auf Leibungsdruck schräg oder quer zur Faser beansprucht wird, größer gewählt als die Nuttiefe a in dem Holze mit Laibungsdruck parallel zur Faser. Das kann entweder, wie es, in der Abb. i veranschaulicht ist, dadurch geschehen, daß bei verschiedener Tiefe der Nuten in den beiden sich berührenden Hölzern doch die Nut in jedem einzelnen Holz gleichmäßig ausgebildet wird, so daß der Dübel von durchweg gleichbleibender Breite verschieden tief in die beiden Hölzer von deren Berührungsfläche c aus eingelassen wird, oder er wird nach Abb. 2 die Nut in dem auf Leibungsdruck schräg oder quer zur Faser beanspruchten Holze mit veränderlicher Tiefe ausgebildet, und zwar so, daß die entsprechenden breiteren Teile des Ringdübels an den Stellen zu liegen kommen, wo der Leibungsdruck quer zur Faser auftritt.Wood connection through ring dowels. At the junctions of wooden lattice girders, the pressures exerted by the known ring dowels in the groove walls are e.g. T. directed obliquely to the wood fiber. Fig. 3 shows, for example, a common nodal design with a one-piece lower chord u and a two-piece inclined rod d. The inclined bar and the lower chord are connected to one another by ring dowels and bolts inserted in circular grooves. The soffit pressure exerted by the ring dowel on the groove walls of the lower chord is directed diagonally to the wood fiber, while in the inclined bar the soffit pressure is parallel to the fiber. In order to better utilize the higher permissible soffit pressure in the direction of the wood fibers, according to the invention, the groove depth b in the timber which is subjected to soffit pressure at an angle or across the fiber is selected to be greater than the groove depth a in the timber with soffit pressure parallel to the fiber. This can either be done, as illustrated in Fig. I, by the fact that the groove in each individual wood is formed evenly with different depths of the grooves in the two woods touching each other, so that the dowels are of uniform width throughout is embedded deep into the two woods from their contact surface c, or it is formed according to Fig come to rest where the soffit pressure occurs across the grain.

Claims (2)

PATENT- ANSPRÜCHE: i. Verbindung .aufeinanderliegender Hölzer durch in Nuten der Hölzer eingelassene Ringdübel, dadurch gekennzeichnet, daß bei gleichbleibender Breite des Dübels die Nuttiefe indem auf Leibungsdruck schräg oder quer zur Faser beanspruchten HoIzegrößerausgebildeb ist als in dem auf Leibungsdruck parallel zur Faser beanspruchten Holze. PATENT CLAIMS: i. Connection of timber lying on top of one another by ring dowels embedded in grooves in the timber, characterized in that, while the width of the dowel remains the same, the depth of the groove in the timber subjected to reveal pressure at an angle or transverse to the fiber is larger than in the timber subjected to reveal pressure parallel to the fiber. 2. Verbindung nach Anspruch i, dadurch gekennzeichnet, daß die Nuttiefe und dementsprechend die Breite des Dübelbandes in dem auf Leibungsdruck schräg oder quer zur Faser beanspruchten Holze abgestuft ausgebildet ist. 2. A compound according to claim i, characterized in that the depth of the groove and, accordingly, the width of the dowel strip in the timber subjected to the pressure of the reveal obliquely or transversely to the fiber is formed in a stepped manner.
DEL56519D Wood connection by ring dowel Expired DE406193C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL56519D DE406193C (en) Wood connection by ring dowel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL56519D DE406193C (en) Wood connection by ring dowel

Publications (1)

Publication Number Publication Date
DE406193C true DE406193C (en) 1924-11-21

Family

ID=7277829

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL56519D Expired DE406193C (en) Wood connection by ring dowel

Country Status (1)

Country Link
DE (1) DE406193C (en)

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