What is Gravity Base Structure?

Information about Gravity Base Structure

Enlarge picture
A Condeep type GBS under construction in Norway.


A gravity base structure (GBS) is a support structure held in place by gravity. A common application is for offshore oil platforms. These GBSs are often constructed in Norwegian fjords since its protected area and sufficient depth is preferred for construction. GBSs intended for offshore oil platforms are constructed of steel reinforced concrete, often with tanks or cells which can be used to control the buoyancy of the finished GBS. When completed, GBSs are towed to their intended location and sunk. The platform structure which a GBS supports is called the topsides.

External links

Gravitation is a natural phenomenon by which all objects with mass attract each other. In everyday life, gravitation is most familiar as the agency that endows objects with weight.
..... Read more.
oil platform is a large structure used to house workers and machinery needed to drill and then produce oil and natural gas wells in the ocean. Depending on the circumstances, the platform may be attached to the ocean floor, consist of an artificial island, or be floating.
..... Read more.
Motto
Royal: Alt for Norge ("Everything for Norway")
1814 Eidsvoll oath: Enige og tro til Dovre faller
("United and faithful until the mountains of Dovre crumble")

Anthem
Ja, vi elsker

..... Read more.
fjord (or fiord) is a long, narrow estuary with steep sides, made when a glacial valley is filled by rising sea water levels. The seeds of a fjord are laid when a glacier cuts a U-shaped valley through abrasion of the surrounding bedrock by the rocks and sediment it carries.
..... Read more.
Reinforced concrete, also called ferroconcrete in some countries, is concrete in which reinforcement bars ("rebars") or fibers have been incorporated to strengthen a material that would otherwise be brittle.
..... Read more.