see the snap below
only one of the wind -y or wind -z is permissible
the wind is in z direction only in staad.it goes off , when i make as "Wind Y".please clarify.
In RCDC, Load type combination of either 'Wind X' and 'Wind Z' or 'Wind X' and 'Wind Y' can be selected.
As RCDC is compatible for importing both STAAD and ETABS model, all the 3 wind load types i.e. Wind X, Wind Y, Wind Z is available to use.
However, as STAAD has global axis Y upwards, we suggest you to assign Wind X type to wind load case in X direction & Wind Z type to wind load case in Z direction.
Whenever you assign all the 3 wind load types of RCDC to 3 different Load cases, you get the warning message with an exclamation mark.
Hope this clarifies. Kindly get back to us in case of further clarification required in this regard.