IBC 2006

State Supplement to 2006 IBC

Hospital Campus

Zoning Classification: C-3

Max Building Height: 162'

Connection to an existing patient tower with proper story elevations and to fit in amongs the style of the srounding campus buildings.

Wilmot Sanz was the architecture firm that designed the Patient Tower as part of the 2015 Capital Improvement Project, of which the Tower Expansion is one of the earlier phases. The new patient will connect with an existing patient tower at every floor by a bank of elevators separated into two sections one for visitors and the other for patients. The Patient Tower will blend in with the existing buildings by keeping some of the red brick on the exterior but also taking on a more modern look by incorporating aluminum curtain wall and precast concrete panels. One of the main design considerations is individual patient rooms. Based on the Hospitals goals for care the individual patient rooms were a large factor in the design of the floor plan. Another design factor is the future addition of a womens care facility as part of the Improvement plan.

There are a few different type of material that make up the façade of the Patient Tower.  The major façade materials is a precast concrete panel with a thin brick face. The front entrance way is enclosed with a glass and aluminum curtain wall on the first two levels before transforming in to a mixture of different styles of precast concrete panels with fix glazing. On the 5th floor the building is enclosed with architectural louver to allow the mechanical systems on the floor to get the air needed. See Figure 2.

The Foundations of the patient tower is set on piles, with pile caps and grade beams. Each column location has a range from 4 to 12 piles. The slab on grade for the tower is 5” with integrated slab pile caps in locations of high stress such as the elevator shaft and stair well. During the excavation for the new tower the existing basement and caissons supporting the connecting structure were exposed that will support a small portion of the new tower.
The column layout of the patient tower is very regular with a few variations on the 1st through 3rd floors. The bay spacing in the patient tower is mostly square 29’ x 29’ with a few exceptions as see in Figure 3 to the right. The main column size is 24” x 24” with vertical reinforcing of #11 bars numbering from 12 to 4 as they move up the structure. The vertical reinforcing is tied together with #4 bars placed every 18”. The structural system of the Patient Tower utilizes column capitals to resist punching shear with in the slab.
The Floor system for this patient tower is a 9 ½” 2-way flat plate. For the ground floor through the 4th floor the slab is 5000 psi concrete with the remaining floors at 4000 psi concrete. The flat plate system has both top and bottom steel reinforcing. The top steel placed at places of negative moment is typical notated with a number of #5 bars. The bottom reinforcing is a 2-way mat of #5 bars at 12” on center.
The lateral system in the new patient tower consists of seven 12” reinforced concrete shear walls. These walls are located in different locations thought out the building depicted to the right. This system of two shear wall cores resists lateral loads in both the north-south and east-west direction based on the orientation of the wall.

The Construction began this early this fall with the excavation of an existing driveway and entrance to the existing tower. Since this new patient tower is connecting to an existing structure the one end of the site access will be limited. With the site being built on the campus of the hospital there will be room for staging and equipment storage around the grounds without disturbing operation.

There is not much in the way of building security. The lobby will be monitored by hospital staff. There are a few locations in the tower that will have secure access these are areas where median in is kept.