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This multi-family
project in Seattle has five levels of concrete construction – a slab
on grade and four levels of post-tensioned concrete slabs. The
concrete levels are connected with vehicular ramps. Transfer
girders collect the ramp and slab loads and carry them to concrete
columns.
The superstructure steps
back as it rises from the street level, reducing building mass so
that it would not overwhelm the neighboring St. Spiridon Orthodox
Cathedral. This superstructure steps create framing complexity
at plan changes from floor to floor. Steel girders work within
the overall timber framing in order to carry the collected loads to
common bearing points
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