Owensboro health regional hospital
Owensboro, Kentucky
Sharon Jankiewicz
Structural Option
Proposal
Structural Depth
The current gravity and lateral systems for Owensboro Health Regional Hospital meet prescriptive code requirements set by the Kentucky Building Code. Detailing of the Special Moment Frames and Special Concentrically Braced Frames yield R = 8 and R = 6, respectively, implying that there will be potential damage associated to the structure in a seismic event. Using performance based design, the building could have better system performance and allow for more immediate occupancy to serve as an essential facility. During the spring semester, the Bed Tower lateral system will be redesigned as concrete shear walls. This redesin introduces ductility in to the system, reducing damage sustained by the building. The gravity system will be redesigned in places where existing lateral elements are no longer needed. Lateral system placement will be based on member performance (story drift and member stress) and architectural impact.
Construction Management Breadth
Prefabrication and shop assembly of steel systems economized original steel erection cost and construction time. By switching to a new lateral system, some of that economy is lost and will impact overall time to construct. In terms of construction cost, it is impossible to put a price on reliability. Adding in an expensive system such as viscous fluid dampers may exceed an owner’s budget, but the value of a more resilient design might far outweigh any cost concerns. Cost and schedule comparisons between the two systems will indicate a viable redesign.
Mechanical Coordination Breadth
Although a relatively simple mechanical layout in the Bed Tower and Spine, any change to plenum space or the presence of shear walls will affect mechanical coordination. Placement of lateral elements will minimize impact on the mechanical system. Mechanical system placement distribution will be checked early on in progress and if need, it will be resized or redistributed.
MAE Requirements
MAE Requirements
As per requirements for the Graduate School of the Pennsylvania State University, work for this thesis will incorporate modeling techniques covered in AE 530 - Computer Modeling of Building Structures. A three dimensional model in ETABS supplemented by two dimensional analysis in SAP2000 will allow better understanding of building performance due to its unique architectural layout and high seismic forces.