Structural analysis of pipe line risers. II
Computerized stress analysis for installed pipeline risers is described. Pipe line riser systems on fixed offshore platforms can be made safer by proper choice of riser configuration and supports. The design of risers must take into consideration effects of the platform movements, boundary effects from the seabed pipe line and the deck piping, operating pressures and temperatures as well as environmental forces, dead-weight and riser contents. When stress analysis is performed, all components of a riser including the part of the pipe line at seabed plus the boundary elements at pipe line end and parts of the deck piping and equipment must be considered. Use of computerized stress analysis will enable a comprehensive simulation of the complete pipe line riser system. A comparison of DNV-1976 and ANSI B31.4 and ANSI B31.8 codes show major differences between the load combinations and allowable stress levels recommended by each code. Each design code has a different approach to load combination and allowable stress levels and the design of a pipe line riser system using a combination of all three code requirements is recommended.
- Research Organization:
- Brown and Root, Inc., Houston, TX
- OSTI ID:
- 7293602
- Journal Information:
- Pipe Line Ind.; (United States), Journal Name: Pipe Line Ind.; (United States) Vol. 47:2; ISSN PLINA
- Country of Publication:
- United States
- Language:
- English
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42 ENGINEERING
420500 -- Engineering-- Materials Testing
CHEMICAL REACTIONS
COMPUTERS
CORROSION
FATIGUE
MECHANICAL PROPERTIES
MECHANICAL STRUCTURES
OFFSHORE PLATFORMS
PIPELINES
SEA BED
STABILITY
STRESS ANALYSIS
STRESSES
SUPPORTS