110
The Prototype Design: Building Subsystems
113.3
SERVICES
Distribution from the building's central stations to vertical risers should be
located in a highly accessible service space, such as a service basement,
or a service zone between floors. For purposes of the Prototype Design, it
is assumed that the use of a service basement will be the typical case.
The pre-organization of this space was not considered appropriate due to
the extreme variability of site conditions, hospital size and program, and
design configuration. Once the design configuration for a particular
hospital has been determined, the service basement can be organized by
establishing reserved zones in a manner suggested by the Prototype
Design for the service modules.
The principle criterion for the location of service shafts and risers is the
minimum obstruction to functional space planning that can be achieved
with a reasonably efficient distribution network. Vertical distribution is
largely limited to the building perimeter and concentrated in the service
bays.
Horizontal distribution within the service module is restricted to the service
zone above the ceiling. This zone is organized into a series of subzones,
each exclusively reserved for a specific class of service distribution
components. With the exception of gravity drains, all services downfeed
through the ceiling. Wherever feasible, surface mounted service lines and
terminals are clustered and concealed in furred out partition components
or in proprietary enclosures.
113.4
PERMANENT AND ADAPTABLE COMPONENTS
Certain components of the building subsystems are either assumed to
rarely require renovation during the life of the building or are sized in
original design to minimize the probability of such a requirement; these
components are designated "permanent". They include most structure
and ceiling components, two-hour partitions, and certain main distribution
lines of the service subsystems. All other components are designated
"adaptable" in the sense that they are subject to alteration on a random
basis during the life of the building. They are specifically designed to
facilitate extension, relocation and replacement. Accessibility to all
components for purposes of efficient maintenance is stressed in overall
system design, regardless of classification as permanent or adaptable.
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