Abstract: A reinforced arch made of arcuate panel sections is disclosed. The addition of stiffening elements such as bracing or a tensioning apparatus to the arch increases the strength and stability of the arch. By attaching a plurality of these arches together in a spaced-apart relationship with a series of purlins, a high strength frame for a soft-covered building could be produced.

Abstract: A containment system for particulate materials comprises a substantially vertical annular wall defining a substantially cylindrical storage area. A plurality of membrane supports are each attached near an outer end thereof to an upper edge of the wall and extend inwardly and upwardly to a central location above a central portion of the storage area where inner ends of each membrane support are secured to each other. An impermeable flexible membrane is attached at an outer edge thereof to the wall and extends over the membrane supports to enclose the storage area. Curved membrane supports are provided that reduce flapping of the membrane in the wind, and the supports may also be provided with a lower tensioner, thereby increasing strength.