DG 1110-3-106
schools to achieve compactness, but all schools are
A school of 30,000 sq. ft. (gross area) consisting
q
limited in height to three stories or less so that stairs
entirely of classroom space and a small
can be used as the primary mode of vertical
administration area.
circulation. Furthermore, the circulation grid in each
q A school of 150,000 sq. ft. (gross area) consisting
school allows a section of the school to be set aside
of shop and classroom instructional spaces in a 3 to
for multi-use occupancy during all school hours.
1 ratio and an administration area equal to 20% of
Designated sections of the school can be opened for
the total school area.
q A school of 400,000 sq. ft. (gross area) consisting
use and the required entrances and exits maintained,
while the remainder of the school is secured. For
of equal areas of shop and classroom instructional
example, in the 30,000 sq. ft. school, the half of the
spaces and an administration area equal to 25% of
building on either side of the central entrance can be
the total school area.
used; in the larger schools, any single section between
B. Electrical Systems.
circulation nodes can be opened during off school
Electrical system requirements will be based on the
hours.
following:
D. Time.
(1) Lighting and Miscellaneous Power.
Total KVA
School
Allowances (watts/s.f.)
(1) Rapid Construction.
As discussed in paragraphs 3-2b and 3-2c, the
5
150
30,000 sq. ft.
illustrative designs employ simple rectangular spatial
150,000 sq. ft.
5
750
2,000
forms and common framing dimensions. This enhances
400,000 sq. ft.
5
the ease of construction and thereby reduces the
amount of time required for construction.
(2) Mechanical Power
(Heating and Ventilation Only).
Total KVA
(2) Planning for Expansion.
School
Allowances (watts/s.f.)
As discussed in paragraph 5-3c(2) the designer must
2
60
30,000 sq. ft.
plan for the future expansion of the service school.
150,000 sq. ft.
2
300
Figure 6-5 illustrates one way in which expansion
2
800
400,000 sq. ft.
planning can be accomplished. Based on estimates of
the educational mission and student load at future
(3) Mechanical Power
points in time, the school is planned to expand in
(Heating, Ventilation, and Cooling).
Allowances (watts/s.f.)
Total KVA
three phases. In each phase of construction, the
School
existing facility maintains its functional organization
8
240
30,000 sq. ft.
and is not significantly affected by construction
1,200
8
150,000 sq. ft.
8
activities. For example, there is no overhead, vertical
3,200
400,000 sq. ft.
expansion which could seriously impair instructional
programs on lower floors. Furthermore, each phase is
(4) Total Load Summary.
designed so that upon its completion, the school can
Total KVA
Total KVA
With A/C
Without A/C
adapt to a new functional organization quickly and
School
210
390
easily. This is accomplished by expanding each
30,000 sq. ft.
functional element along its periphery in such a way
1,050
1,950
150,000 sq. ft.
that the total facility maintains a compact form.
2,800
5,200
400,000 sq. ft.
6-7 Utilities Requirements for Illustrative Designs
(5) Special Equipment.
Considerations for electrical systems include providing
A. Mechanical Requirements.
power for heavy shop equipment, computer
The planning factors developed in this paragraph are
equipment, and other special items with large electrical
based on paragraph 2-2h., General Planning Factors,
demands. Requirements of this kind must be identified
and on the representative spatial organizations listed
by the using activity as required by TM 5-800-3,
Project Development Brochures. Special electrical
below. These planning factors are not for design of
service school mechanical systems. Their function is to
demands such as these have not been included in the
provide a quick estimate of mechanical requirements
electrical system requirements.
for initial planning and funding projections.
6-7
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