Definition(s)
Action
External load applied to the structure (direct action) or an imposed deformation or acceleration (indirect action). EXAMPLE An imposed deformation can be caused by fabrication tolerances, settlement, temperature change or moisture variation. NOTE An earthquake typically generates imposed accelerations. [ISO 19900:2002, 2.1]
Source: API RP 2MOP, Marine Operations, Upstream Segment, First Edition, July 2010. Global Standards
Source: ISO 19900:2013, Petroleum and natural gas industries – General requirements for offshore structures. Global Standards
Action
External load applied to the structure (direct action) or an imposed deformation or acceleration (indirect action). EXAMPLE An imposed deformation can be caused by fabrication tolerances, settlement, temperature change or moisture variation. NOTE An earthquake typically generates imposed accelerations. [ISO 19900:2002]
Source: ISO 19901-7:2013, Petroleum and natural gas industries – Specific requirements for offshore structures – Part 7: Stationkeeping systems for floating offshore structures and mobile offshore units. Global Standards
Action
External load applied to the structure (direct action) or an imposed deformation or acceleration (indirect action). EXAMPLE An imposed deformation can be caused by fabrication tolerances, settlement, temperature change or moisture variation. NOTE An earthquake typically generates imposed accelerations. [ISO 19900:2002, definition 2.1].
Source: ISO 19905-1:202, Petroleum and natural gas industries – Site-specific assessment of mobile offshore units – Part 1: Jack-ups. Global Standards