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

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<str<strong>on</strong>g>Wind</str<strong>on</strong>g> Directi<strong>on</strong>ality Factor<br />

in Japan<br />

• Hybrid use of meteorological data<br />

during typho<strong>on</strong> passage and Typho<strong>on</strong><br />

Simulati<strong>on</strong> technique<br />

→ Reflecting effects of large-scale<br />

topography and terrain roughness<br />

- Correlati<strong>on</strong>s between observed wind<br />

speed and simulated fricti<strong>on</strong> free<br />

wind speed<br />

- Correlati<strong>on</strong>s between observed wind<br />

directi<strong>on</strong> and simulated fricti<strong>on</strong> free<br />

wind directi<strong>on</strong><br />

p 1<br />

Generati<strong>on</strong> of Virtual<br />

Meteorological Data in Tropical<br />

Cycl<strong>on</strong>e Pr<strong>on</strong>e Regi<strong>on</strong><br />

Simulated Fricti<strong>on</strong> Free <str<strong>on</strong>g>Wind</str<strong>on</strong>g><br />

(FFW)<br />

- <str<strong>on</strong>g>Wind</str<strong>on</strong>g> Speed U FF<br />

Correlati<strong>on</strong>s<br />

- <str<strong>on</strong>g>Wind</str<strong>on</strong>g> Directi<strong>on</strong> D FF<br />

Typho<strong>on</strong> Path<br />

p 3<br />

Meteorological Records<br />

p p - <str<strong>on</strong>g>Wind</str<strong>on</strong>g> Speed U<br />

p 2 i<br />

p ME<br />

4 - <str<strong>on</strong>g>Wind</str<strong>on</strong>g> Directi<strong>on</strong> D ME Pressure Records at<br />

Meteorological Stati<strong>on</strong>s<br />

Typho<strong>on</strong> Simulati<strong>on</strong><br />

Virtual<br />

(FFW)<br />

Meteorological Data<br />

5000 years 5000 years<br />

7

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