Clasification Society Rules and Regulations - Rules and Regulations for the Classification of Offshore Units, January 2016 - Part 4 STEEL UNIT STRUCTURES - Chapter 2 Materials - Section 3 Design temperature
Section 3 Design temperature
3.1 General
3.1.1 The Minimum Design Temperature (MDT) is a reference temperature used as a criterion for the selection of the grade of steel to be used in the structure and is to be determined in accordance with Pt 3, Ch 1, 4 Materials.
3.1.2 The MDT is not to exceed the lowest service temperature of the steel as appropriate to the position in the structure.
3.1.3 A design temperature of 0°C is generally acceptable for determining the steel grades for structure which is normally underwater, see also Pt 4, Ch 2, 4.1 General 4.1.4.
3.1.4 For column-stabilised units of conventional design, the lower hulls need not normally be designed for a design temperature lower than 0°C.
3.1.5 The design temperature for internal structure of all units is to be separately defined, see Lloyd’s Register's Provisional Rules for the Winterisation of Ships.
3.1.6 Internal structures in way of permanently heated compartments need not normally be designed for temperatures lower than 0°C.
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