MIL-HDBK-1191
and public water supply, on-site water storage capacity, sizes and quality of
on-site fire mains, fire pumps sizes, capacities, and pressures, and types of
supply to buildings. Evaluate the fire protection system, noting extent and
quality of sprinkler systems, dry standpipes, wet standpipes, and portable
extinguishers.
6.8.1.5
Hazardous Materials. Evaluate bulk oxygen storage, fuel storage
facilities and the natural gas supply for earthquake vulnerability and damage.
Evaluate the methods of bracing or anchoring medical and/or flammable gas
cylinders and the methods of storing laboratory reagents, radioactive
isotopes, and other dangerous chemicals.
6.8.1.6
Electrical Power. Electrical power will be assumed to be
unavailable from public utilities following an earthquake. Determine the
availability, capability and capacity of the alternate power source (on-site
generator(s)) to provide the necessary power to operate the facility following
an earthquake. Make particular notes of all pertinent characteristics of the
alternate power source, with emphasis on capacity, mounting arrangement,
starter reliability, fuel supply, age, and degree of automation. Also note
the general vulnerability to earthquake-induced damage of the transfer
switches, electrical distribution system, and items to be serviced by the
alternate source power system.
6.8.1.7
Mechanical Systems & Equipment. Inspect the boiler plant to
determine the type of construction, type of boilers, anchorage of boilers,
bracing of critical piping, and the location, type, and mounting of critical
auxiliaries. Evaluate the domestic cold water systems for bracing of main
lines, storage tanks, and distribution points. Inspect all mechanical rooms
and critical equipment (such as heating, ventilating and air conditioning
equipment) for methods of anchorage, mounting, and bracing. Check required
connections to other equipment elements.
6.8.1.8
Site Accessibility. Evaluate public access to the facility.
Provide at least two separate on-site entrance roads to the facility, each
preferably connecting to a different off-site public access road. Identify
potential earthquake hazards to roads, bridges, overpasses, and retaining
walls. Inspect the site to determine if a safe and reliable on-site space for
emergency helicopter landings is within close proximity of the hospital
buildings.
6.8.1.9
Facility Upgrade Report. Include all of the above considerations,
along with the Structural Design system evaluation and the site hazards
assessments, in a facility upgrade report (SEE SECTION 2)
6.8.2
Final Evaluation. Based on the review and approval of the seismic
facility upgrade report, a final evaluation of the facility will determine the
most satisfactory method to upgrade the seismic resistance to the prescribed
criteria. Proposed solutions will be thoroughly analyzed and cost estimates
prepared. As an alternate concept, a base isolation system may be considered
to upgrade the seismic resistance of facility. Base isolation will limit the
seismic forces transmitted to the super structure and minimize the seismic
upgrade provisions for the non-structural elements. If considered, the base
isolation requirements for new medical facilities apply.
6.9
Design of Essential Non-structural systems. The seismic restraint,
protection, site-storage, and other seismic design features and requirements
addressed by the following criteria will be applicable according to the level
of the seismic threat and the designated operational level of the facility.
6-5
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