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| CPMC - Cathedral Hill Hospital (SAN FRANCISCO, ca, usa)
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| Four story concrete shear wall
basement + fourteen story Steel
Special Moment Resisting Frame (SMRF)
building with viscous wall dampers,
with a total footage of 1,160,000 sq.ft.
FSA designed the below grade
structure (four stories) in SAP 2000.
Instead of employing conventional mat
foundation, the foundation system
used continuous wall footings around
the perimeter concrete walls, spread
footings for the interior columns and
with grade beams supporting the
Moment Frames. The analysis model
used no restraints, and all loads were resisted by soil vertical springs,
friction and passive non-linear springs
applied on the foundation and walls.
The diaphragms-concrete filled metal deck, and composite steel beams were checked for biaxial load transfer mechanism that are
not quantified in the US code. Separate SAP models of the floor |
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| diaphragm were modeled to study and quantify the axial load
distribution between beams and the concrete filled metal deck and the buckling capacity of the floor diaphragm with gravity
loads. Apart from the basement structure, few ancillary elements were designed by FSA. A 30 foot screen wall and the cooling
tower platform at the roof, and composite beams that are to be penetrated by fire sprinkler lines were checked for adequacy. |
Architect: SmithGroup
Structural Engineer of Record: Degenkolb Engineers, Oakland
Structural Engineer: FSA, India
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HEALTHCARE FACILITIES
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