Astro AMS 506 360 061 User Manual

238

Common information 

Wind load calculations

SAT 90

W = 740 N

L = 1,2 m
(free length) 

upper mounting

 

lower mounting

 

5050

Worked 

sample

 SAT

 90

740 N 

. 

1,2 m + 41 Nm = 929 Nm

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 Nm

328 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