Page 128 - Marine Structural Design

104 Part I Structural Design Principles

Post weld heat treatment
Minimum access for welding
Marine growth type and thickness

Temporary Phases
Design criteria for relevant temporary phases includes:
Limiting permanent, variable, environmental, and deformation action criteria
Procedures associated with construction, including major lifting operations
Essential design parameters associated with the temporary phase
Relevant Accidental Limit-state (ALS)

Operational Design Criteria
Design criteria for relevant operational phases includes:
Limiting permanent, variable, environmental, and deformation action criteria
Deck load description (maximum and minimum)
Wave motion accelerations on appurtenances
Mooring actions
Tank loading criteria
Fatigue and fracture criteria
Air gap requirements
Accidental event criteria

In-service Inspection and Repair
Criteria for inspecting the structure post-fabrication and in-service and criteria for allowing
repairs to be efficiently carried out and recorded include:
Description of the in-service inspection hierarchy and general philosophy
Access for inspection and repair
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Redundancy and criticality of components
Reassessment
The data needed for re-assessment include:
Inspection records
Fabrication and welding records
Details of cracked and damaged components
Details of replaced or reinforced components
Details of on-site measurements
Details of corrosion protection methods and marine growth state