Question

Yes or no — if you were designing a pneumatic structure you would:
A. Be more concerned about stresses induced by wind than earthquakes.
B. Design the footings to resist uplift loading.
C. Be concerned about the pressure differential between the interior and the exterior air.

Answer

All yes. Pneumatic structures are typically constructed with an impervious fabric membrane supported by interior air pressure that is greater than the exterior air pressure. Highly flexible, they are often held in form and place by a grid of exterior cables that tie down to a foundation that must resist uplift forces caused by wind on the structure.