UFC 4-159-03
3 October 2005
Figure 3-5. Ratio of Wind Speeds for Various Gusts (after ASCE 7-95)
1.30
1.25
1.20
1.15
1.10
1.05
1.00
NON-HURRICANE
0.95
0.90
0.85
0.80
HURRICANE
0.75
0.70
1
10
100
1000
10000
GUST DURATION, t (sec)
t
Vt/V30
Vt/V30
(sec)
Non-Hurricane
Hurricane
1
1.182
1.221
2
1.160
1.196
3
1.145
1.175
5
1.124
1.147
10
1.080
1.097
20
1.030
1.034
30
1.000
1.000
40
0.977
0.971
50
0.955
0.950
60
0.938
0.932
70
0.924
0.917
100
0.891
0.879
200
0.846
0.822
400
0.815
0.780
1000
0.783
0.739
3600
0.753
0.706
43
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