AS/NZS 1170 Wind Design Calculator
Annual Probability of Exceedance (AEP)
and Regional Wind Speed
VR
Part 1 — Annual Probability of Exceedance (AEP)
Reference: AS/NZS 1170.0:2002 — Table 3.3
Reference: AS/NZS 1170.0:2002 — Table 3.3
Standard Reference
AS/NZS 1170.0:2002 — Structural Design Actions
Part 0: General Principles
Table 3.3 — Annual Probability of Exceedance
AS/NZS 1170.0:2002 — Structural Design Actions
Part 0: General Principles
Table 3.3 — Annual Probability of Exceedance
Annual Probability of Exceedance (AEP):
—
AS/NZS 1170.0 Table 3.3
Average Recurrence Interval, R:
—
R = 1 / AEP
Select the parameters and calculate the AEP.
The annual probability of exceedance is selected
according to design working life, importance level,
limit state and action type.
ULS = Ultimate Limit State.
SLS = Serviceability Limit State.
ULS = Ultimate Limit State.
SLS = Serviceability Limit State.
Part 2 — Regional Wind Speed
VR
Reference: AS/NZS 1170.2:2011 — Clause 3.2 & Table 3.1
Reference: AS/NZS 1170.2:2011 — Clause 3.2 & Table 3.1
Standard Reference
AS/NZS 1170.2:2011 — Structural Design Actions
Part 2: Wind Actions
Clause 3.2 — Regional Wind Speeds (VR)
Table 3.1 — Regional Wind Speeds
AS/NZS 1170.2:2011 — Structural Design Actions
Part 2: Wind Actions
Clause 3.2 — Regional Wind Speeds (VR)
Table 3.1 — Regional Wind Speeds
Selected Wind Region:
A2
Important:
The city/location selector provides a preliminary
wind-region selection only.
Confirm the actual project wind region using the
applicable AS/NZS 1170.2 wind-region map.
The Wind Region field above can be manually changed
by the user.
Selected Location:
Manual selection
Wind Region:
—
Confirm against wind-region map
Average Recurrence Interval:
—
VR =
—
m/s
AS/NZS 1170.2:2011 —
Clause 3.2 & Table 3.1
Complete Part 1 first,
then select the city/location
or manually select the wind region.
Regional wind speed
VR
is determined using the selected
average recurrence interval and wind region.
Selecting a city automatically pre-fills an indicative wind region. The user can manually override the region before calculating the regional wind speed.
Selecting a city automatically pre-fills an indicative wind region. The user can manually override the region before calculating the regional wind speed.