750
Cost and Time Analysis: First Cost
751.3.2
Additional Space Resulting from the Use of a Structural Module
The criticism of "waste space" could be directed at the use of modular
structural dimensions that allowed building width to vary only in rather
large increments such as the 4'6" structural module of the Prototype
Design. That is, if conventional design procedures working with standard
area formulas produced a building width which could not be reduced
further than, say, 74'6", the next larger modular dimension, 76'6", would
have to be used. However, if it is assumed that the extra foot of space on
each side of the building was not used for increasing the number of rooms
but was simply added to some of the original rooms, only "raw space"
costs are involved, e.g., structure, ceiling, finishes, partitions without doors
or services, etc. The following items should be deducted from the basic
construction costs of the total building:
$/OGSF
Cost Item
Heating-ventilating-cooling
4.50
Plumbing
3.50
Electrical
4.00
Casework, building equipment, etc.
4.00
Vertical transportation
1.00
Site work
1.25
Services (medical gasses, etc.)
1.75
Total non-applicable costs
.00
Subtracting from .60, the incremental space is priced at only .60,
or about 60% of the overall cost of the minimized configuration. It must be
emphasized that "raw space" costs apply only to increments of space
small enough that lighting, HVC, plumbing, etc., are not affected.
The effect of this added space on the total cost of a hospital can be
illustrated by application of these figures to the Example Building
Schematic Design presented in Section 730. The total area of the building
shown in about 843,000 square feet. It the nursing wards are composed
of space modules which could have been four feet narrower in width if not
constrained by modular dimensions, then about 18,000 square feet of
incremental space has been added to allow conformance to the module.
That is, the total area has been increased by 2.2%.
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