35
Q
1
= 0.40 kN/m
2
Q
2,b
= 24.5 kN/m
3
x d [m]
Q
4
= 0.10 x Q
2,b
0.75 kN/m
2
≤ Q
4
≤ 1.75 kN/m
2
Q
2,p
= 0.75 kN/m
2
Q = Q
1
+ Q
2,b
+ Q
2,p
+ Q
4
b
Main girder spacing
b
a
a
a
Secondary girder spacing
c
Prop spacing
c
c
MULTIFLEX
Secondary Girder: VT 20
Main Girder: 2 x VT 20
0.35 0.40 0.45 0.50 0.60 0.70 0.80 0.90 1.00
10.6 11.9 13.3 14.6 17.3 20.0 22.5 25.0 27.4
0.50 0.40 0.50 0.40 0.50 0.40 0.50 0.40 0.50 0.40 0.50 0.40 0.50 0.40 0.50 0.40 0.50 0.40
0.25 0.50
2.51 2.70 2.40 2.59 2.31 2.49 2.24 2.41 2.11 2.27 2.00 2.16 1.89 2.07 1.76 1.99 1.61 1.91
13.9 15.0 15.0 16.2 16.1 17.4 17.2 18.5 19.2 20.6 21.0 22.7 22.3 24.4 23.1 26.1 23.1 27.5
0.375 0.75
2.51 2.70 2.40 2.59 2.31 2.49 2.24 2.41 2.11 2.27 2.00 2.16 1.89 2.07 1.76 1.99 1.61 1.91
20.9 22.5 22.6 24.3 24.2 26.0 25.7 27.7 28.7 31.0 31.5 34.0 33.4 36.6 34.7 39.1 34.7 41.2
0.50 1.00
2.51 2.70 2.40 2.59 2.31 2.49 2.24 2.41 2.11 2.27 2.00 2.09 1.86 1.86 1.68 1.68 1.53 1.53
27.8 30.0 30.1 32.4 32.2 34.7 34.3 37.0 38.3 41.3 42.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0
0.50 1.25
2.51 2.70 2.40 2.59 2.31 2.49 2.24 2.29 1.94 1.94 1.67 1.67 1.49 1.49 1.34 1.34 1.22 1.22
34.8 37.5 37.6 40.5 40.3 43.4 42.9 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0
0.50 1.50
2.51 2.64 2.34 2.34 2.10 2.10 1.91 1.91 1.61 1.61 1.40 1.40 1.24 1.24 1.12 1.12 1.02 1.02
41.8 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0
0.50 1.75
2.26 2.26 2.01 2.01 1.80 1.80 1.64 1.64 1.38 1.38 1.20 1.20 1.06 1.06 0.96 0.96 0.87 0.87
44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0
0.50 2.00
1.98 1.98 1.76 1.76 1.58 1.58 1.43 1.43 1.21 1.21 1.05 1.05 0.93 0.93 0.84 0.84 0.76 0.76
44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0
Prop Spacing c [m]
Slab Thickness
d [m]
Load
q* [kN/m
2
]
Sec. Girder
Spacing a [m]
2.61
44.0
Dead load
Concrete load
Equivalent load: concreting
Equivalent load: working conditions
Total load
Calculation basis:
*Load according to EN 12812
Table values mean the following:
perm. main girder spacing b [m]
actual prop load [kN]
– The deflection has been limited to l/500
– Secondary girder assumed as single span
– For prop loads < 22.0 kN, 1 x VT 20 as main
beam is sufficient.
Cantilever e [m]
For cantilevers:
c < 75 cm; e = c/2
c ≥ 75 cm; e = 50 cm
c: width of main beam interior span or
prop spacing
e: length of cantilever
e
c
c
cc
e
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