Project Overview
With nearly 40,000 active students and enrollment rates increasing each year, the University of South Carolina (USC) in Columbia, S.C., faces an escalating need for additional housing. In May 2023, university officials set their sights on a new development that would not only provide a safe and exceptional experience for students, but also one that could be fast-tracked for completion just over two years later, in summer 2025. As officials considered which building material to work with, cast-in-place concrete was originally in the mix. However, with an aggressive timeline and the need for a long-term, resilient solution for both USC and its students, the project team, including precast concrete manufacturer Metromont, architect Cooper Carry Inc., and general contractor New South Construction, turned to an all–precast concrete solution consisting of more than 4600 pieces.
Precast Concrete Everywhere
Gateway 737 offers a high-end experience for residents, thanks primarily to its design-build, total–precast concrete approach. The 750,000-ft2 structure uses a precast concrete floor and ceiling system that allowed for long spans and clear openings, with minimal interior bearing walls. This approach enabled more design flexibility, as well as the capability for future adaptive reuse. Multiple large, precast, prestressed concrete transfer beams support the building’s 11 levels, carrying the load to a combination of columns and walls. Some of these beams support approximately 1 million lb of precast concrete self-weight and concrete-topped floors. Ultimately, leveraging this design allowed for an optimal project workflow, expediting construction.
“Precast concrete was selected for this project primarily due to speed of construction,” says Clay Putnam, project manager for Metromont. “The overall project schedule was very condensed, but with precast, the building could become operational by August 2025.”
Beyond the floor and ceiling system, precast concrete played a pivotal role in several other elements of the development, which features 311 fully furnished residential units in one-, two-, three-, and four-bedroom configurations. A steel roof terrace structure on the top level designed for socializing and events is supported by precast concrete. An elevated courtyard framed entirely out of precast concrete with a large pool is located in the center of Gateway 737. The pool was constructed with precast concrete beams, columns, spandrels, and double tees.
On the building’s ground level, which consists of the bottom two floors, the need for multipurpose spaces, including restaurant and retail, necessitated a complex arrangement of precast concrete walls and columns to allow for the required doors, openings, and egress—all while adequately supporting the structure above. The development is even supported by a six-level, 130,000-ft2 parking structure that provides approximately 600 spaces for the community. This structure, along with the courtyard and pool area, leverages precast concrete columns, walls, and spandrels to support the double tees. Gateway 737’s stair and elevator towers also consist of precast concrete stair treads and risers, allowing safe access to the structure as it was being built.
In addition to the design flexibility and aesthetic advantages offered by precast concrete, Gateway 737 also benefits from the material’s resilient attributes. The total–precast concrete solution contributed to improved storm resistance for the structure while also creating a safe building envelope that protects residents and their belongings. Precast concrete’s ability to withstand the effects of severe weather—especially compared with alternative materials such as conventional metal studs or hand-laid brick and stucco—means that the development will serve as a source of pride and joy to USC students and the wider community well into the future.
“The Gateway 737 project provides university students with an attractive option for living, socializing, and studying within walking distance of campus,” Putnam says.
Mason Nichols is a Grand Rapids, Mich.-based writer and editor who has covered the precast concrete industry since 2013.
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