prov:value
| - This is accomplished by providing a support columnadapted to be anchored to a foundation, a plurality of identical, inverted, doubly-curved, umbrella, hyperbolic paraboloid shells whose edges form a plane figure, and a thin, horizontal, upper slab integrated with the edges of the plane figure so as toform a diaphragm which provides both a working, horizontal surface, such as in a floor, and also m
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