Applying wind loads to structures with rigid diaphragms can be done automatically in RISA-3D. In the image below we have a structure that has rigid diaphragms and the wind load has already been applied at each diaphragm level.

To do this, go to Insert >Wind Loads and input the code and the necessary parameters to calculate the wind force in the structure.

Once we hit the Calc Loads button the program calculates the forces at each diaphragm level in each orthogonal direction and gives the parameters used to calculate these forces.

If we then hit OK, these loads are added to your Basic Load Cases automatically.

Tags: Diaphragms, RISA-3D, Wind