Very large floating structure

Steel, concrete (prestressed or reinforced hybrid) or steel-concrete composite materials may be used to build the floating structure.

The motion of the floating structure due to wind or wave action must be substantially neutralized, to ensure the safety of people and facilities on a VLFS, and to allow useful activities.

Its basic element is a simple box structure; it usually offers high stability, low manufacturing cost and easy maintenance and repair.

The pontoon type is flexible compared to other kinds of offshore structures, so that the elastic deformations are more important than their rigid body motions.

Many large floating structures have been conceptualized, including a golf course,[4] a farm,[5] and habitable long-term living complexes (seasteading).

(https://www.smithsonianmag.com/air-space-magazine/how-to-save-a-sinking-airport-180968985/) In the 2010s, SpaceX contracted with a Louisiana shipyard to build a floating landing platform for reusable orbital launch vehicles.

[15] A concept has been patented for a floating automotive parking barge with angled sides to deflect wind shear.

[19] In December 2018, Shell announced that the wells have been opened and the plant was ready to begin the initial phase of production.

[20] In June 2019, it reached a significant milestone, shipping its first liquefied natural gas cargo to customers in Asia.