eSubsea estimate the design loads and do project specific design load estimation as part of the subsea engineering, design and verification assignment. This include establishing the basic loads, load and design factors and combining these into load combinations to be used in the structural analysis and design of the structure or object.

Do you have a subsea project involving estimation of design loads that we can help with? Contact us now!
Faster and More Cost Effective
Get Your Design Loads Estimated Before Requesting a Full Quote
Design load estimation is often the very first step in any subsea project — and one of the most time-sensitive. Waiting days for an engineering firm to compile environmental loads, installation loads and operational load combinations can stall your project schedule before it has even started.

esubsea.ai automates design load compilation per DNV, NORSOK N-001 and ISO standards. Submit your site data and structure type and receive a structured load summary — suitable for use as a preliminary design basis — within hours. When your project requires a full, stamped design basis document, our engineering team is ready to take over.
Typical saving: Automated load estimation via esubsea.ai reduces preliminary engineering hours by 60–80%, giving you reliable numbers to work with while your full project scope is being defined.

Limit State Design

eSubsea perform structural design according to the principles of limit state design method. All identified forms of failure are checked within the respective group of limit states (ultimate limit state ULS, accidental limit state ALS, serviceability limit state SLS, progressive collapse limit state PLS and fatigue limit state FLS). The factor of safety (FoS) is established.

Loads and Load Factors

The design loads and forces including all required factors adding to the total level of safety will be established using the codes, standards and recommendation applicable for subsea structures and offshore use (ASME, DNV, NORSOK, ISO, API, Eurocode etc.)

eSubsea estimate the following design loads for the design of offshore and subsea structures, parts or components:

  • Fabrication and handling loads
  • Testing loads
  • Load out loads
  • Transportation loads
    • Loads from vessel accelerations
  • Installation loads
    • Weight and buoyancy
    • Wave slamming loads
    • Seabed impact loads
    • Suction and levelling loads
    • Impact loads from other modules
    • Connection loads from jumpers, pipeline or flowlines
    • Wing hub connection loads
  • Operation loads
  • Accidental loads
  • Intervention loads
    • BOP and Xmas tree impact loads
    • ROV impact loads
  • Retrieval loads
    • Overpressure in suction anchors

Subsea design load estimation is usually the first step on any subsea or offshore engineering task and will hence be included in most assignments and documented in the project design basis.

Translate this page to Norwegian – Estimering av Design Laster