User:Vincecate/Tension circle marina

Description

The idea is to use a tension circle to make a marina.

Detail

• Material issues - concrete, foam inside wall. Since it does not go far below the water foam and concrete should be ok. With foam cracks in the concrete will not be fatal.
• Tension members could be plastic rope or steel cable (note they are not in drawing above)

Requirements Analysis

• Safety
  • It is very wide compared to boats and so should be very stable
  • Wall is filled with foam so essentially unsinkable
  • No active ballast controls so no chance of that going wrong
  • Not clear how we make boats inside safe during hurricanes

• Comfort
  • Should have a gentle motion on normal days but significant response to large waves.

• Cost
  • This should be one of the cheapest designs. It's very simple. Although it is as wide as a large cruise ship, most of the area is just cables over open space.

• Pretty
  • Looks nice.

• Modular
  • May be able to scale by adding wall sections. Can make multiple marinas.

• Cargo
  • Very easy for a boat to come into the marina and transfer cargo to other boats.

• Free Floating
  • Yes

• Scalable
  • Scales up but not clear what the minimum reasonable size is.

• Standards

• Mobile
  • If tension members were removed from wall it could go through the water like a snake so moving was very economical.

• Draft
  • Very shallow draft.