The parking structure on the California State University, Sacramento, campus comprises two connected six-story units, totaling approximately 1 million square feet and 3,000 stalls. Figure 1 is a recent photograph of the structure, looking east. International Parking Design was the architect of record, and Miyamoto International was the structural engineer for this university-owned building project. During the structural system selection process, steel, precast, and cast-in-place concrete framing and concrete shear wall alternatives were considered. The cast-in-place design proved to be the most economical option that met the university’s requirements. Unbonded post-tensioning was added to the east-west beams to make the design even more cost-efficient. All floors are 5-inch-thick, normal-weight concrete slabs with one-way post-tensioning.
Amir S. J. Gilani, Kit Miyamoto, and Lon Determan
Miyamoto International, Inc., West Sacrament, CA