The South Crescent site presented a number of design challenges, including poor site soils subject to liquefaction, a high water table only a few feet below the lower basement, and the presence of methane requiring a collection and venting system. A pile foundation system supports the structure. A combination of conventionally reinforced and post-tensioned flat plate construction was used for the podium and parking level to keep the lowest level above the water table.
The project includes two (2) separate 4-story luxury apartment buildings built on concrete podiums over the parking. Ceiling heights vary from 9 to 11 feet with some volume spaces reaching 17 feet. Balconies are both recessed and projected as well as other architectural articulation required careful framing and detailing to incorporate these conditions as they varied at each floor. Significant coordination with the architect and MEP team early in design ensured that an economical shear wall system was possible and that structural elements and MEP systems did not conflict.
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