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Wind Resistant Design AIJ Recommendations for Wind Loads on ...

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500-year<br />

year-recurrence recurrence <str<strong>on</strong>g>Wind</str<strong>on</strong>g><br />

Speed U 500 (m/s)<br />

38 36<br />

36<br />

40<br />

34<br />

36<br />

36<br />

38<br />

42<br />

34<br />

40<br />

42<br />

38<br />

38<br />

36<br />

38<br />

46<br />

44<br />

36<br />

34<br />

34 38<br />

36<br />

36<br />

40<br />

34<br />

40<br />

42 40<br />

34<br />

34<br />

36<br />

36<br />

44<br />

40<br />

48<br />

40<br />

44<br />

36<br />

48<br />

36<br />

34<br />

44<br />

48<br />

40<br />

38<br />

42<br />

40<br />

42<br />

44 48 40<br />

44 46<br />

48<br />

36<br />

38<br />

36 34<br />

36<br />

Okinawa: 58m/s<br />

Lower Limit: 34m/s<br />

Turbulence Intensity I Z<br />

at Height Z<br />

I =<br />

Z<br />

I<br />

rZ<br />

E<br />

gI<br />

I rZ<br />

E<br />

gI<br />

=<br />

E<br />

E<br />

I<br />

g<br />

: Turbulence Intensity <str<strong>on</strong>g>for</str<strong>on</strong>g><br />

flat terrains<br />

Topography factor <str<strong>on</strong>g>for</str<strong>on</strong>g><br />

fluctuati<strong>on</strong> wind speed σ u<br />

: Topography factor <str<strong>on</strong>g>for</str<strong>on</strong>g><br />

turbulence intensity<br />

Topography factor <str<strong>on</strong>g>for</str<strong>on</strong>g><br />

mean wind speed U<br />

17

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