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

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Topography Factor E g<br />

0 Eg 1<br />

Proposed Formula<br />

E g<br />

-3 -2 -1 0 1 2 3 4 5 6<br />

X<br />

H<br />

<br />

S<br />

<br />

S<br />

1 1<br />

Return Period C<strong>on</strong>versi<strong>on</strong><br />

Factor k rW<br />

k<br />

rW<br />

0 .62( λ −1)ln<br />

r − 2.9λ<br />

+ 3.9<br />

=<br />

U<br />

U<br />

λ U<br />

= U 500<br />

U 0<br />

U 500<br />

U 0<br />

: 500-year<br />

year-recurrence recurrence wind speed<br />

<str<strong>on</strong>g>for</str<strong>on</strong>g> the meteorological standard<br />

c<strong>on</strong>diti<strong>on</strong>s<br />

: Basic wind speed<br />

(100-year<br />

year-recurrence)<br />

recurrence)<br />

16

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