MIL-HDBK-1027/4A
2.2.4.3
Loading Dock Ramp Protection. Each facility requiring a loading
dock ramp should be provided side-edge protection in compliance with Section
1910.23c of Public Law 29, Code of Federal Regulations, Occupational Safety
and Health Act Standards Manual.
2.2.5
Structural. Structural design should comply with MIL-HDBK-1002
series, Structural Engineering, and NAVFAC P-355, Seismic Design for
Buildings. Base an economical structural system on facility size, projected
load requirements, quality of locally available materials, local labor and
construction materials, and local wind, snow, seismic, geologic and
permafrost conditions. Design in flexibility for future high bay ceiling
height extensions.
Depress structural framing and slabs in lab areas where access
flooring occurs to provide uniform, continuous finish floor levels between
adjacent spaces.
Include the weight of any classified file safe such as those in
Library/Learning Centers in floor loading.
2.2.5.1
Clearspan requirements. Columns in the high bay training area are
typically prohibited. Check excursion limits for device and accommodate
flexibility.
2.2.5.2
Weight Handling Equipment. Cranes and monorails should comply with
DM 38.01, Weight Handling Equipment. Conform to NAVFAC NFGS-14637, Cranes,
Overhead Electric, Underrunning (Under 50,000 Pounds), and NFGS-L14622,
Monorails with Electric Powered Hoists, where applicable. Provide platforms,
catwalks, access ladders, and any other provisions for inspection and
maintenance of cranes and hoists.
Three-ton bridge cranes or monorails are normally required for dome
type devices. Obtain user and device manufacturer input regarding controls
and speed criteria for hoist, trolley, and bridge, hook heights, capacities
and service area. Micro-inching is required in horizontal and vertical
movement. Bridge cranes allow more extensive area of service and may
alleviate need for redundant smaller special purpose cranes. Acknowledge
crane area of service. A 1/2 ton hoist may be required for servicing the
visual displays, gravity ("G") seats, and canopy removal. Where mezzanine
areas are used for storage, provide a 1/2 ton crane and rail. Provide crane
hook height clearance and bridge crane operating limit diagrams on drawings
as required by the device manufacturer for the highest expected level and
area of operation. Note that lifting the device will require more clearance
than necessary for stationary position.
2.2.5.3
Floors.
Design floor slabs along the travel path of any equipment
to withstand the heaviest wheel loads anticipated during the installation.
Obtain the weights and attachment locations of the simulator and associated
equipment from the equipment manufacturer via the procuring activity.
Current computer equipment trends are toward more compact, yet denser and
heavier components. Future floor loads will probably localize into more
extreme concentrated loads. Some training systems may be highly sensitive to
external shock and vibration and may require damping or shock isolation
mounting. Six DOF motion systems require a substantial reaction mass to
resist the forces and moments placed on the floor. Motion systems may
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