DNV DNV-RU-SHIPS PART 6 CHAPTER 1 PDF

The scope of additional class notation Grab is to add an additional level of safety in relation to the strengthening of those parts of the hull structure that are exposed to impact loads from grabs. The rules in this section are considered to satisfy the requirements for determining the net thickness [strengthening] of structural elements, such as inner bottom and lower parts of transverse and longitudinal bulkheads; aligned with, and dependent upon, selected qualifiers as shown in Table 1.