Subsea Structure Design

Dee Subsea have provided structural engineering design services on several subsea structures (manifolds, SSIV structures, PLETs, ILTs, etc.). This ranges from initial concept studies, through FEED and detailed design stages, and construction/installation support.

This includes the following:

  • Structural analysis & design of structural steelwork members and joints for in-place and lifting conditions;
  • Transportation analysis & design;
  • Seismic analysis & design;
  • Dropped object assessment & design;
  • Foundation analysis & design (gravity based and piled foundations);
  • Piping analysis & design;
  • Lift point design;
  • Design of equipment supports;
  • Installation aid design;
  • Design in accordance with AISC, API, BS, DNV, ISO and Norsok codes.

Examples of various subsea structure designed by Dee Subsea are shown below.

Subsea Structure Design - SDU Support Frame FEED - Lift Analysis
SDU Support Frame FEED – Lift Analysis
Subsea Structure Design - PLET Detailed Design - In-place Analysis
PLET Detailed Design – In-place Analysis
Subsea Structure Design - Valve Skid Detailed Design - Lift Analysis
Valve Skid Detailed Design – Lift Analysis
Subsea Structure Design - Deepwater Manifold FEED - In-place Analysis
Deepwater Manifold FEED – In-place Analysis

For more information about our services and how we can help you, please contact us.