Heavy Marine Transport Analysis Procedure: Spar Transport Case Studies

The analysis procedure for heavy marine transports is based on spectral approaches and on the use of 3D hydrodynamic and structural models. The analyses are aimed at designing the transport supports and at guaranteeing the structural safety during the voyage. The analyses are typically conducted concurrently with the design of the spar structures. Brief description is given of the analysis procedure. Its application is illustrated with examples from recently completed projects. Main effort in most projects is in local strength and fatigue issues caused by localized support loads between the spar and ship hulls. The spar transports have had relatively large overhanging sections, which are subject to wave slamming and impact loads under rough seas.