Section 3 Load cases
Clasification Society 2024 - Version 9.40
Clasifications Register Guidance Information - Guidance Notes for the Polar Class Vessel and Criteria for Non-Linear Analysis, January 2022 - Chapter 3 Design Loads - Section 3 Load cases

Section 3 Load cases

Parent topic: Chapter 3 Design Loads

3.1 Design load cases

3.1.1 Design load cases are given in Ch 3, 3.1 Design load cases 3.1.2 for transversely framed ice belt and Ch 3, 3.1 Design load cases 3.1.2 for longitudinally framed ice belt, respectively. Details of the load patch locations are shown in Ch 3, 3.1 Design load cases 3.1.2 and Ch 3, 3.1 Design load cases 3.1.2 for transverse framed ice belt, and Ch 3, 3.1 Design load cases 3.1.2 and Ch 3, 3.1 Design load cases 3.1.2 for longitudinally framed ice belt, respectively.

3.1.2 Additional load cases may need to be examined where capacity of the grillage primary member under the combined effects of bending and shear is minimised.

Table 3.3.1 Design load cases for transversely framed ice belt

Load case Horizontal location of ice patch load, see Note 2 Vertical location
T1 Between web frames in way of centre of hold Stringer, see Note 1
T2 Between adjacent web frame and transverse bulkhead Stringer, see Note 1
T3 Between web frames in way of centre of hold Deck
T4 Between adjacent web frame and transverse bulkhead Deck
T5 Centre of web frame in way of centre of hold Above stringer
T6 Centre of adjacent web frame in way of transverse bulkhead Above stringer
T7 Centre of web frame in way of centre of hold Between stringers/decks
T8 Centre of adjacent web frame in way of transverse bulkhead Between stringers/decks
T9 Centre of web frame in way of centre of hold Above deck
T10 Centre of adjacent web frame in way of transverse bulkhead Above deck
T11 Centre of transverse bulkhead Stringer
T12 Centre of transverse bulkhead Between stringers/decks
T13 Centre of transverse bulkhead Deck
Note If several horizontal stringers are arranged with same dimension and details within the ice belt as (A) in Ch 3, 3.1 Design load cases 3.1.2 , one of the representatives is to be analysed.
Note If port and starboard have different structural configuration, additional load cases are to be analysed.

Figure 3.3.1 Load cases and ice patch loading on stringer and deck between transverse web frames

Figure 3.3.2 Load cases and ice patch loading on stringer and deck at centre of transverse web frames and transverse bulkhead

Table 3.3.2 Design load cases for longitudinally framed ice belt

Load case Horizontal location of ice patch load, see Note 2 Vertical location
L1 Between web frames in way of centre of hold Stringer, see Note 1
L2 Between adjacent web frame and transverse bulkhead Stringer, see Note 1
L3 Between web frames in way of centre of hold Deck
L4 Between adjacent web frame and transverse bulkhead Deck
L5 Centre of web frame in way of centre of hold Above stringer
L6 Centre of adjacent web frame in way of transverse bulkhead Above stringer
L7 Centre of web frame in way of centre of hold Between stringers/decks
L8 Centre of adjacent web frame in way of transverse bulkhead Between stringers/decks
L9 Centre of web frame in way of centre of hold Above deck
L10 Centre of adjacent web frame in way of transverse bulkhead Above deck
L11 Centre of transverse bulkhead Above stringer
L12 Centre of transverse bulkhead Between decks/stringers
L13 Centre of transverse bulkhead Above deck
Note If several horizontal stringers are arranged with same dimension and details within the ice belt as (A) in Ch 3, 3.1 Design load cases 3.1.2 , one of the representatives is to be analysed.
Note If port and starboard have different structural configuration, additional load cases are to be analysed.

Figure 3.3.3 Load cases and ice patch loading on stringer and deck between transverse web frames

Figure 3.3.4 Load cases and ice patch loading on stringer and deck at centre of transverse web frames and transverse bulkhead
Copyright 2022 Clasifications Register Group Limited, International Maritime Organization, International Labour Organization or Maritime and Coastguard Agency. All rights reserved. Clasifications Register Group Limited, its affiliates and subsidiaries and their respective officers, employees or agents are, individually and collectively, referred to in this clause as 'Clasifications Register'. Clasifications Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Clasifications Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract.