Common Structural Rules

What is CSR BC & OT?

It is a comprehensive and consistent rule set which will set the standard for oil tankers and bulk carriers. The new rule set consists of two main parts: The first is a common part covering general hull requirements applicable to both ship types, such as wave loads, hull girder strength, buckling and fatigue requirements. The second part covers ship-type specific requirements only applicable to bulk carriers or oil tankers. The rule application has not changed from CSR-OT and CSR-BC. The rules will also comply with SOLAS II-1 Regulation 3-10 “Goal-based ship construction standards for bulk carriers and oil tankers” (GBS).

For which vessel types and sizes is the CSR BC & OT applicable?

CSR BC & OT applies to:

Tankers for oil and oil product, with length 150m or above
Bulk carriers with length of 90m or above

Excluded by the CSR are: Ore carriers, open hatch bulk carriers without hopper and top side tanks, OBOs, self-unloaders and some other specialized bulk carriers

Key features of the CSR BC & OT compared to CSR-OT and CSR-BC

Extended verification scope, including FE analysis of all cargo holds
More transparent and consistent requirements, including technical background
Improved load model/formulations based on direct wave load analysis
Enhanced fatigue standard, including detail design standard
Hull girder buckling, also including lateral pressure and the combination with shear stress
Hull girder ultimate limit state assessment, including damaged condition
Compliance with IMO Goal Based Standards (GBS)
Increased design grab weight for Panamax and Capesize vessels (Applicable only for Bulk Carriers)

Common Structural Rules

What is CSR BC & OT?

For which vessel types and sizes is the CSR BC & OT applicable?

Key features of the CSR BC & OT compared to CSR-OT and CSR-BC

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Common structural rules

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