The Wind wizard (EC1991 1-4) can be run to create a series of static forces that are combined with other actions due to dead and imposed loads in accordance with BS EN 1990.

The following assumptions/limitations exist:

• The shape of the building meets the limitations allowed for in the code.

• It must be a rigid structure.

• The structure must be either enclosed or partially enclosed.

• Parapets and roof overhangs are not explicitly dealt with.

Simple wind loading

If use of the wind wizard is not appropriate for your structure then wind loads can be applied via element or structure loads instead.

Definition of psi factors for wind loadcases

In the Loadcase dialog when a wind loadcase is selected, the default values of Ψ₀, Ψ₁ and Ψ₂ are displayed. These vary depending on the National Annex being worked to. The values can be edited if required. See “psi factors”.