DE1983738U - LATTICE BEAM FOR REINFORCED CONCRETE RIBBED CEILINGS. - Google Patents

Description

PA 1iriq-Q * 24 2 M

Bottrop, April 24, 1958

Usage inusie-r

eä3r% registration

Paul Merrettig

Bottrop, Kirchhellener-Str »56

Lattice girder for reinforced concrete rigging corners

Lattice girders come in different designs, preferably known as lightweight steel girders for the production of reinforced concrete ribbed ceilings = lattice girders, such as lightweight steel girders, whose upper chord is made of profiled sheet metal, are known in particular and whose lower chord is formed from round bars »The diagonals are made from continuous, freely profiled, zig = zag-shaped bent iron band, disadvantageous in these lattice girders is that the zigzag curved ones Diagonals are relatively complex to manufacture and because of their instability, cumbersome to process. the

innovation

inu avoids this disadvantage »

The -un relates to lattice girders, preferably lightweight steel girders, in which the upper chord is profiled from a U-shape Sheet metal is produced. The lower chord is made of round iron, The diagonals are made of individual V-shaped bent, arbitrarily profiled flat belts are produced »Preferably the Diagonals arched towards the lower chord to increase the moment of inertia »For better fastening of the V-shaped Pieces on the top chord, the legs get horizontal at their ends Turns. At the bottom of the V-shaped parts are also arranged horizontal sections that serve to accommodate the reinforcement holder. The arranged V = shaped Curved parts are connected at the top with the top chord and at the bottom with the round iron, thus forming a lattice girder. The reinforcement brackets, which are inserted into the horizontal parts of the V-shaped bent pieces, get bends downwards »Die The ends of the reinforcement brackets are bent inwards. the Reinforcement brackets are firmly connected to the diagonals »The Connection can be made in any form »The entire lower chord the beam can be encased with a concrete foot »

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In the following, the - based on siner, is only a

Embodiment illustrated drawing explained?

show it?

N & uerunä 1 shows the girder according to the iun in the side view, Figure 2 shows a cross-section of the truss structure, Figure 3 is a representation of the diagonal 4 shows the lower chord with the details, Figure 5 shows the lattice girder in a perspective view.

The girder shown in the figures consists of a U-shaped profile, open at the top upper chord 1 and formed from round steel bottom chord Z ₀ The diagonals 3 are made of, curved in the direction of the lower chord 2 V-shaped bent _s ribbon made "The ends of the Diagonals 3 are bent horizontally »Reinforcement brackets 4 are inserted in the horizontal part of diagonals 3« The reinforcement brackets 4 are hoisted around the diagonals 3 5 and thus fixed = the lower chord 2 with the reinforcement brackets 4, can be encased with a concrete foot »

Claims (1)

S ^ h> ui-z
ai χι claims _S-like 1 "G-itter carrier ₉ is preferably lightweight steel carriers for the production of reinforced concrete ribbed floor] !, consisting of a U ~ upwardly open top chord (i) and _s in the bottom chord of Rundeiseii (2), characterized in that the diagonals (3) comprises individual , in the direction of the lower chord (2) curved, V-shaped pieces, the ends of which are bent horizontally and which have a horizontal intermediate piece at the lower apex} » Lattice girder according to claim 1, characterized in that in the horizontal spacers of the diagonals (3) reinforcement holder (4) are inserted, with the diagonals (3) on any kind are connected. 3- lattice girder according to claims 1 and 2, characterized in that that the reinforcement holders (4) are connected to the diagonals (3) by pushing them in from the side (5) » Paul Merrettig