Architect: Parsons - Brinkerhoff
Engineer: Parsons - Brinkerhoff
Developer: CEI Development LLC
General Contractor: WM Jordan
This project consists of a three-story, 60,000 square foot office building featuring a total precast structural system, and a 138,000 square foot precast parking deck. These two buildings are adjacent to each other, separated by an expansion joint. A precast ramp provides access to the elevated parking level. Two additional buildings, an 81,000 square foot primary maintenance facility, and an 18,000 square foot fuel island and bus washing facility complete the project. These two buildings are steel framed with architectural precast cladding panels. A precast pedestrian bridge connects the parking facility with the maintenance facility.
To maximize open space within the office building, interior shear walls could not be used. Therefore, moment frames were used to create the lateral resisting system. Due to foundation limitations, the column to foundation connections could only be designed as pinned, not fixed. This created huge forces on the column to beam moment frame connections at each level. Heavily welded connections were designed to withstand these loads, and the beams were precast, not prestressed, to eliminate shrinkage forces on the connections.
The lower level of the parking deck will be used for bus parking and maintenance, which required an unusually large open interior space to allow for bus maneuverability. To accommodate this open interior space, seventy foot long double tees were used to maximize bay widths.
Numerous architectural features were provided for each of the four buildings. These features consisted of thin-set brick, buff-colored concrete, two different sandblast depths, projecting concrete sections, and reveals. An integral clock tower was built into the parking facility, and precast architectural cap pieces were set on top of the exterior walls. Large openings were framed into the roof and upper floor level of the office building for the installation of skylights to provide natural lighting.
A green roof on top of the office building, and the use of local and recycled materials helped the project achieve LEED Silver Certification.
An exceptionally tight triangular site, and the existence of power lines made erection difficult.