17
München
Augsburg
Regensburg
Nürnberg
Würzburg
Stuttgart
Freiburg
Saarbrücken
Mannheim
Frankfurt
Wiesbaden
Köln
Düsseldorf
Bonn
Essen
Dortmund
Erfurt
Chemnitz
Dresden
Leipzig
Halle
Magdeburg
Berlin
Potsdam
Hannover
Bremen
Hamburg
Schwerin
Rostock
Kiel
3.4 Installation with regard to the wind zone/wind speed
When installing air-termination systems, the wind zones must be observed. These wind zones differ
from region to region. When installing air-termination systems outside of Germany, the
countryspecific requirements concerning wind zones/wind speeds must be considered (see Fig. 3.4).
To calculate the actual wind load to be expected, the zone-dependent wind load, building height
and local conditions (detached building, building in open terrain or building surrounded by other
buildings) must be considered.
When designing self-supporting air-termination rods, the following requirements must be fulfilled
with regard to the wind load:
Tilt resistance
Break resistance
Wind load zone: 2 (wind speed up to 142 km/h)
Site category: suburban, industrial area
Height above ground: max. 40 m
Height above sea level: 800 m above sea level
Fig. 3.4
Installation with regard to the wind zone/wind speed
Parameters for calculation:
Environment III: suburban, industrial area
Height of the building: 40 m
Height above sea level: up to 800 m above sea level
wind zone
base wind
speed (fix)
wind zone 1
22,5 m/s
128 km/h
wind zone 2
25,0 m/s
142 km/h
wind zone 3
27,5 m/s
156 km/h
wind zone 4
30,0 m/s
170 km/h
gust wind
speed
