Lattice girders in stock for half slabs and double walls

Lattice girders GT for half slabs are girders in stock that are used in half slabs and double walls. The diameters of the chords and diagonals have been selected so that the AVI lattice girders GT for half slabs are ideally suited for standard applications in building construction.

Lattice girders GT for half slabs

Benefits

  • Girder heights from 90 mm to 250 mm
  • Immediately available from stock
  • For standard applications in building construction
  • Standard length 14 m
  • Secures the connection between precast half slabs and in-situ concrete after hardening
  • Load-bearing capacity and serviceability of precast half slabs during installation
  • Spacer for the top reinforcement layer
  • Lower chords as flexural tensile reinforcement
  • Diagonal truss wires do no project over the upper chord
  • Multiple constructive options
  • Welded at all joints
  • Good transfer of shear forces
  • Perfect straightness
  • Available to order at short notice (minimum order quantity)

Lattice girders GT for half slabs

Composition

Lattice girders GT are three-dimensional, industrially prefabricated reinforcing elements. They consist of an upper chord, two lower chords, and continuous diagonal truss wires. Truss wires are connected to the chords by means of electric resistance welding. The lattice girder GT for half slabs is kept in stock and, therefore, is available at short notice.

Lattice girders GT for half slabs

Types

Promptly available from stock, the lattice girders GT for half slabs are available in heights from 90 mm to 250 mm. The standard length is 14 m.

Girder
height
H
Upper
chord
d3
Diagonal
wires
d2
Lower
chord
d1
Angle of
inclination
α
Factory
length
Weight
per m
Shear resistance
VRds/z
Resistance during
installation
Permissible
buckling
moment of
upper chord
Permissible
shear force
of diagonal
wires
mm mm mm mm ° m kg/m kN/m kNm/girder kN/girder
90 7,2 4,6 5,0 42,0 14,0 0,98 48,4*(1,110+cotθ) 0,49 4,30
110 7,2 4,6 5,0 47,7 14,0 1,02 53,5*(0,910 +cotθ) 0,60 4,05
120 7,2 4,6 5,0 50,2 14,0 1,04 55,5*(0,833+cotθ) 0,66 3,81
130 7,2 4,6 5,0 52,4 14,0 1,06 57,3*(0,770+cotθ) 0,72 3,57
140 7,2 4,6 5,0 54,5 14,0 1,08 58,8*(0,714+cotθ) 0,78 3,33
150 7,2 4,6 5,0 56,3 14,0 1,10 60,1*(0,667+cotθ) 0,84 3,10
170 8,0 5,0 5,0 59,5 14,0 1,31 73,6*(0,589+cotθ) 1,44 3,75
180 8,0 5,0 5,0 60,9 14,0 1,34 74,6*(0,556+cotθ) 1,53 3,49
190 8,0 5,0 5,0 62,2 14,0 1,37 75,5*(0,527+cotθ) 1,62 3,24
200 8,0 5,0 5,0 63,4 14,0 1,39 76,4*(0,501+cotθ) 1,71 3,02
230 8,0 5,0 5,0 66,5 14,0 1,48 78,3*(0,435+cotθ) 1,97 2,46
240 8,0 5,0 5,0 67,4 14,0 1,50 78,8*(0,416+cotθ) 2,06 2,31
250 8,0 5,0 5,0 68,2 14,0 1,53 79,3*(0,400+cotθ) 2,15 2,16

VRds = (ASW/s)·z·fywd·(cotα + cotθ )·sinα … Design value of shear resistance of inclined reinforcement

α… Angle of inclination of diagonal wires
θ… Angle of compression strut
z … Lever arm of internal forces [m]

Lattice girders GT for half slabs

Installation / Placement

Lattice girders GT for half slabs

Gallery

Lattice girders GT for half slabs

Downloads

Date issue 04/17

Version 05/22

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