The voided slab approach economically stretched the limits of concrete construction on this project. The resulting long spans enabled the large spaces envisioned by the architect, for example, a 45’ x 100’ open gallery. The use of voided slabs was key to meeting the challenge of controlling the self-weight of the concrete structure. This approach held the structure’s weight within the limits of the auger pile foundation.

PROJECT VOIDED SLAB ACHIEVEMENTS:

• Large, column-free exhibit spaces

• Large spans with flat soffits

• Load reduction on auger piles: 1,893 tons

• Concrete reduction: 935 cubic yards