Section 10 Deck support structure
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Classification of Inland Waterways Ships, July 2022 - Part 4 Ship Structures (Ship Types) - Chapter 5 Tankers of Type G - Section 10 Deck support structure

Section 10 Deck support structure

Parent topic: Chapter 5 Tankers of Type G

10.1 General

10.1.1 The deck support structure is to comply with Table 5.10.1 Deck support structure.

Table 5.10.1 Deck support structure

Item Parameter Requirements
Transverse framing
Deck beams in flush deck ships Modulus Zb = 3,1 ksle 2 cm3
Trunk deck beams    
Trunk side stiffeners Modulus Z = Z b cm3
Deck beams abreast trunks    
Deck girders Modulus Z = (0,33 + 0,062Ll) kSle2 cm3
Longitudinal framing
Deck longitudinals in flush deck ships    
Trunk deck longitudinals Modulus Z = (0,073Ll – 0,5) ksle 2 cm3
Trunk side longitudinals    
Deck longitudinals abreast trunks Inertia I = le 2 Z cm4
Deck transverses in flush deck ships Modulus Z t = 3,1kSle 2 cm3
Trunk deck transverses    
Trunk side transverses Modulus Z = Z t cm3
Deck transverses abreast trunks    
Symbols
L, S, s, le, Z, k and I are as defined in Pt 4, Ch 5, 1.10 Symbols and definitions 1.10.1
L1 = L but is to be taken as not less than 50 m, nor more than 100 m
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