Datasheet

238
Common information
Wind load calculations
SAT 90
W = 740 N
L =1,2 m
(free length)
upper mounting
lower mounting
5050
M
comp.
= M
Pipe
+ W
Ant.
±L
Worked sample SAT 90
740 N
.
1,2 m + 41 Nm = 929 Nm
ASTRO-Type
5050 5076
5060
L (m) Ø 60 mm Ø 76 mm
0,50 7 Nm 9 Nm
0,60 10 Nm 13 Nm
0,70 14 Nm 18 Nm
0,80 18 Nm 23 Nm
0,90 23 Nm 30 Nm
1,00 29 Nm 36 Nm
1,10 35 Nm 44 Nm
1,20 41 Nm 53 Nm
1,30 49 Nm 62 Nm
1,40 56 Nm 72 Nm
1,50 65 Nm 82 Nm
1,60 74 Nm 93 Nm
1,70 83 Nm 105 Nm
1,80 93 Nm 118 Nm
1,90 104 Nm 132 Nm
2,00 115 Nm 146 Nm
2,10 127 Nm 161 Nm
2,20 139 Nm 177 Nm
2,30 153 Nm 193 Nm
2,40 166 Nm 210 Nm
2,50 180 Nm 228 Nm
2,60 195 Nm 247 Nm
2,70 210 Nm 266 Nm
2,80 226 Nm 286 Nm
2,90 242 Nm 307 Nm
3,00 259 N
m328 Nm
maximum
permitted
side load for
masts
1375 Nm
1565 Nm
2350 Nm
3640 Nm
Type 5001 u. 5007 =
Type 5050 =
Type 5060 =
Typ 5076 =
The advices for antenna-installations (VDE 0855 part 1) imply requirements at the mounting
of antenna-installations.
When the side load is higher, the installation must be checked by a stress analyst and a
statics confirmation must be written.
The maximum side load is due to the addition:
1. of the wind load values of the mounted antennas and support shafts multiplied with their
mounting hights each and
2. the wind load of the free length of the stand pipe (see table).
Wind load of masts:
The calculations for stand pipes are an important factor that must be considered. Values for
wind load data are indicated for a back pressure of 800 Pa. They are valid for a mounting
position 20 m above the ground. When the mounting position is more than 20 m above the
ground (e. g. a house with 8 floors) the considered back pressure must be 1100 Pa. Further-
more the wind load value must be multiplied by the factor 1,4. You must note that the
maximum side load at the upper mounting point must not exceed 1650 Nm, resp. the
maximum acceptable value for the pipe (DIN/VDE 0855).
Free
length
Parabolic-antenna
maximum permitted side load for mast
type 5050 (see below) = 1565 Nm;
this combination is permitted