When the sofistik does the RSA earthquake analysis it calculates the seimic forces per x and y plane direction.
However in my case it is possible that the x and y direction is not the worst seismic direction. meaning that the seismic force can have an inclination of 45 degrees to the x or y axis. Do you have any suggestion how can i get the worse seismic force in any direction? (Not parrarel to the x or y global axis)