Largest Inverted Shell Houses Two Theaters

by Jacob Eldar, (F.ASCE), Partner; Amman & Whitney, New York, N.Y.,


Serial Information: Civil Engineering—ASCE, 1979, Vol. 49, Issue 6, Pg. 74-75


Document Type: Feature article

Abstract: A meeting center in Albany, New York, has such a complex shape that it took months just to design its surface mathematically. Perched on a pedestal, it is nearly elliptical in plan. From the side, it looks like a giant devilled egg. The shell is 200 ft wide, 280 ft long and 80 ft deep. It is of reinforced concrete and has a posttensioned ring girder to minimize deformations. It was designed three times; first, by analyzing a series of slices, then by a method of similar shells to check the first design. Later, to cut construction time, it was redesigned using finite elements to incorporate a steel truss-and-deck roof in place of the original concrete slab-and-girder design. The structure took seven years to build.

Subject Headings: New York | Reinforced concrete | Shell structures

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