Introduction

This Recommended Practice deals with design to maintain the load-bearing function of the structures during accidental events. The overall goal of the design against accidental loads is to achieve a system where the main safety functions of the installation are not impaired.

The Recommended Practice has been developed for general world-wide application. Governmental legislation may include requirements in excess of the provisions of this Recommended Practice depending on type, location and intended service of the unit/installation.

The Design Accidental Loads and associated performance criteria are given in DNV-OS-A101. The Accidental Loads in this standard are prescriptive loads. This Recommended Practice may also be used in cases where the Design Accidental Loads are determined by a formal safety assessment (see DNV-OS-A101, Appendix C) or Quantified Risk Assessment (QRA).

The following main subjects are covered:

— Design philosophy

— Ship Collisions

— Dropped Objects

— Fire

— Explosions.