ABS Standards

abs

Currently, in SDC Verifier, it is possible to perform plate buckling check according to ABS Buckling and Ultimate Strength Assessment for Offshore Structures (April 2004) and ABS Floating Production Installations (July 2014).

ABS 2004 Guide for Buckling and Ultimate Strength assessment for offshore structures, published April 2004 (updated February 2012)

Section 3 Plates, Stiffened Panels and Corrugated Panels are implemented in SDC Verifier.

An important aspect in the design of an offshore steel structure is the buckling and ultimate strength behavior of its fundamental structural components. Calculations according to ABS Plate Buckling (2004) standard are performed for each element with converted stresses (into plate direction) or Plate Average Stresses and using Plate dimensions. The standard deals with ensuring high technical quality plate buckling check. Plate Buckling Check is calculated on Sections. With the help of Panel Finder it is possible to automatically recognize Section and Plates with their dimensions. Check is passed if Ultimate Strength Limit ≤1 and Buckling State Limit ≤1.

Read the help article on implementation of ABS Plate Buckling 2004 in SDC Verifier.

ABS 2014 Guide for Building and Classing – Floating Production Installations, published July 2014

Part 5A Ship-Type Installations are implemented in SDC Verifier.

To ensure high technical quality plate buckling check according to ABS 2014 Guide for building and Classing – Floating Production Installations, published July 2014. For individual loads and loads sets, plate buckling is calculating based on formulas using stresses from the load. For Load Group plate buckling is calculated as an envelope. Load Group items are calculated using formulas and then min/max/abs is found. Load Group contains the worst values for each parameter and gives a possibility to check the highest Ultimate Strength and Buckling State Limits for all items at once.

Ultimate Strength Limit and Buckling State Limit depend on plate results (stresses) and the plate dimensions (length, width, and thickness).

Info on ABS Standards

ABS Rules & Guides were developed by the American Bureau of Shipping (ABS) – an American maritime classification society established in 1862. ABS was first chartered in New York in 1862 as the American Shipmasters’ Association (ASA) to certify qualified ship captains, or shipmasters, for safe ship operations during the Civil War. ABS Rules & Guides form the basis for assessing the design and construction of new vessels and the integrity of existing vessels and marine structures. The primary responsibility of ABS as a classification society is to verify that ABS-classed ships and marine structures comply with the established ABS Rules for design, construction, and periodic survey.

ABS also develops standards for the design, construction, and operational maintenance of offshore drilling and production units and for gas carriers of all types. These standards cover mobile offshore drilling units (such as jack-up rigs, semisubmersible rigs, and drillships), floating offshore production installations (spars, tension leg platforms, semisubmersibles, and FPSOs/FSOs), fixed offshore structures, pipelines, risers, and single point moorings. ABS was responsible for classing the first mobile offshore drilling unit, the first production spar, the first semisubmersible offshore wind turbine, and the first offshore support vessel in the Gulf of Mexico to use hybrid power.