CDC - Administrative Offices (Building 24)

When the Centers for Disease Control needed to expand their world-class facilities, they turned to world-class builder Turner Construction for Design-Build services. Turner’s dream team included architects, Tvsdesign and engineers, Uzun & Case. Known simply as CDC-24, the project is a 12 story, 311,000 gross square feet, support facility for Infectious Disease Research. This is the third CDC project for United Forming and the second in partnership with Turner Construction / Tvsdesign / Uzun & Case. The ground floor design accommodates flexible meeting spaces and restaurant style amenities sporting exterior views of the campus green space and water feature. The upper floors provide plentiful office space for approximately 1,000 administrative and support personnel.
Plans call for the core of the building to be surrounded by enclosed offices, team spaces and service elements, which allow the perimeter of each floor to be open. The exterior glass facade, extending from floor to ceiling, allows streaming natural light into the interior. Exit stairs located at the ends of the building, share in the natural lighting while maintaining the open floor plan.

Accomplishing the desired spacious interior, while ensuring the integrity of the structure, was no small task. The CDC requires the structure to resist progressive collapse, which typically precludes the use of unbounded, monostrand post-tensioning. Designing an open-space structure with long spans without post-tensioning can become complicated and costly. United Forming worked closely with Turner Construction and Uzun & Case Engineers to determine the most efficient design. Ultimately, a one-way concrete joist design with deep girders was chosen. This solution provided the open areas required by the owner utilizing an economical structural scheme that also provided an opportunity to accelerate schedule. There was one remaining obstacle; the specifications required a minimum Class “C” finish for the finished work. United Forming quickly solved that problem by using a longform pan system to form the cast in place decks. The longforms employed by United were one-piece pan forms that spanned from girder to girder in thirty-foot lengths. The system was a great success and the client was delighted with the finish. So much so, that Turner has since required other one-way joist projects to have a Class “C” finish using longforms.