Common Structural Rules - Common Structural Rules for Bulk Carriers and Oil Tankers, January 2019 - Part 1 General Hull Requirements - Chapter 3 Structural Design Principles - Section 6 Structural Detail Principles - 9 Deck Structure
9 Deck Structure
9.1 Structural arrangement
9.1.1 Framing system
Deck areas contributing to the longitudinal strength are to be longitudinally framed.
9.1.2 Stringer plate
Stringer plates are to have breadths not less than 0.8 + L/200 m, measured parallel to the deck, but need not be greater than 1.8 m.
Rounded stringer plates, where adopted, are to comply with the requirements in [8.2.4].
9.1.3 Connection of deckhouses and superstructures
Connection of deckhouses and superstructures to the strength deck are to be designed such that loads are transmitted into the under deck supporting structure.
9.2 Deck scantlings
9.2.1 The web depth of deck stiffeners is not to be less than 60 mm.
The web depth of PSMs is not to be less than 10% and 7% of the unsupported span in bending in tanks and in dry spaces, respectively, and is not to be less than 2.5 times the depth of the slots if the slots are not closed. Unsupported span in bending is the bending span as defined in Ch 3, Sec 7 or in case of a grillage structure, the distance between connections to other PSMs.
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