in what cases wind load will be act?
I can't really answer this one. Check your project specifications, this should be detailed there.
how i suggest wind load in caser5.1 wind is .65 maximum....
I presume you mean your
Shape Factor is 0.65? To define the wind loads, use the [Wind] tab of the
Static Load Case Editor.
what u mean by uniform load?
I don't think I mentioned uniform loads ?