| 摘要 |
<p>A container dome (12) with arch-like structures in elevation and polygon-shaped structures in plan. The arch-like structures are provided by pairs of chordal stiffening facets (30, 30a) disposed in an endwise adjacent array extending transversely about the periphery of the dome (12) to enhance top loading capability. Each pair of facets (30, 30a) has an inwardly-convex chordal stiffening rib (36) which defines a regular transverse polygon having an uneven number of sides to prevent dome ovalization. Preferably, multiple vertically-stacked tiers (42, 44) of facet pairs (30, 30a) arrays are utilized with each array being radially offset from adjacent tiers (42, 44).</p> |
