Can you emerge two or more staad files into form one structure? If so will it renumber the joints and beams and retain the loadings on each member. I have additonal questions if this can be done.
What would be the differential pressure on a tight structure when a tornado pass nearby. Internal pressure of the building did not have time to equalize with the external pressure, thus causing an outward pressure or a failure (explosion) of the weakest area of the building and then equalizing...
