Table 3.1. Typical Simplified Geometry Used in Preliminary 
Design Calculations 
Solid, two way slab structurally adequate 
to span spacing between supports. 
Three deck levels consisting of flight deck 
plus two lower-level decks with 20-ft clear- 
ance for middle deck and 8-ft clearance for 
bottom deck. 
Multiple 
Baceestypen hulle 100-ft beam with 50-ft clear span between 
hulls; U-shaped cross section. 
25-f£t diameter, cylindrical, spaced at 
Elevated platform 50-ft and 43-ft centers each way respec- 
columns or legs tively for the single and multi-level 
decks.* 
Semi-submersible with 26-f£t diameter, cylindrical columns, spaced 
36-ft. diameter hulls as for the elevated platform, atop horizon- 
and column supports. tal cylindrical hulls transversely spaced 
to match 50-ft or 43-ft spacing of columns. 
sh 
“Selected spacing was for purpose of maintaining same draft for the 
single and multi-level decked platforms. 
Multi-Level Deck for Elevated and Semi-Submersible Platforms. All 
three decks were designed as two-way slabs. Drop panels, column capi- 
tols and interior circular columns were designed to support dead and 
live loads between deck levels (the longitudinal axes of the deck 
columns were assumed coincidental with the axes of the vertical buoyant 
legs). The clearance between the flight deck and the first interior 
deck was fixed at 20 feet to meet the mission requirement for aircraft 
storage. An 8-foot eeiling height was provided for the lower interior 
deck. The peripheral deck columns (rectangular in cross-section) were 
covered by an outer wall, designed to resist the hydrostatic pressure 
that would be present if the deck were launched and floated to an at- 
sea assembly site. 
Single-Slab Deck for Elevated and Semi-Submersible Platforms. A 
much simpler design than the preceeding one, the deck was designed as 
a two-way slab supported at 50-feet centers by the vertical buoyant legs. 
The weight totals determined included an estimate of the mass of the 
connection between the deck and legs. 
