dear Sir,

When we assigned a wind shape factor in CII, the load case shown four wind cases (Win-1 , to Win-4). Why this four case? How to apply this four case? Is it require to make four operating case like

W+P1+T1+Win1+D1+H
W+P1+T1+Win2+D1+H
W+P1+T1+Win3+D1+H
W+P1+T1+Win4+D1+H

and four sus case like

W+P1+Win1+H
W+P1+Win2+H
W+P1+Win3+H
W+P1+Win4+H

Why four case? please read the above and clear my doubts?

regards