18-04-2014, 12:02 PM
FLOATING STRUCTURE
Design load considerations
In the design of FS, the following loads must be considered:
Dead load
hydrostatic pressure
live load
abnormal loads
earth pressure
wind load.
Material Considerations for Floating Body
Steel, or concrete or steel-concrete composite.
Watertight concrete or offshore concrete
High-performance concrete - suitable for floating structures.
Various types of floating structures
The various types of offshore platform shown as below:
Fixed Steel Structure
Compliant Tower
Jack-up Platform
Concrete Gravity Base Structure
Tension Leg Platform (TLP)
Semi-submersible Vessel
Floating Production System
Spar Platform
Fixed steel structures:
Consists of weld steel, tubular framework or jacket to support the topside facilities.
Piles driven into the seafloor secure the jacket.
water depth about 1500 ft.
Conclusion :
A unique concept of ocean structures
Requires massive investment of resources and is considered a megaproject.
Technology utilized must be reliable to reduce risk of investment.
An awareness and interest in structural and civil engineers on the subject