RULES FOR CLASSIFICATION Ships Edition July 2016 Amended July 2017 Part 3 Hull Chapter 1 General principles The content of this service document is the subject of intellectual property rights reserved by DNV GL AS ("DNV GL"). The user accepts that it is prohibited by anyone else but DNV GL and/or its licensees to offer and/or perform classification, certification and/or verification services, including the issuance of certificates and/or declarations of conformity, wholly or partly, on the basis of and/or pursuant to this document whether free of charge or chargeable, without DNV GL's prior written consent. DNV GL is not responsible for the consequences arising from any use of this document by others. The electronic pdf version of this document, available free of charge from http://www.dnvgl.com, is the officially binding version. DNV GL AS FOREWORD DNV GL rules for classification contain procedural and technical requirements related to obtaining and retaining a class certificate. The rules represent all requirements adopted by the Society as basis for classification. © DNV GL AS July 2016 Any comments may be sent by e-mail to [email protected] If any person suffers loss or damage which is proved to have been caused by any negligent act or omission of DNV GL, then DNV GL shall pay compensation to such person for his proved direct loss or damage. However, the compensation shall not exceed an amount equal to ten times the fee charged for the service in question, provided that the maximum compensation shall never exceed USD 2 million. In this provision "DNV GL" shall mean DNV GL AS, its direct and indirect owners as well as all its affiliates, subsidiaries, directors, officers, employees, agents and any other acting on behalf of DNV GL. CHANGES – CURRENT t n e r This document supersedes the October 2015 edition of DNVGL-RU-SHIP Pt.3 Ch.1. r Changes in this document are highlighted in red colour. However, if the changes involve a whole chapter, u c section or sub-section, normally only the title will be in red colour. - s Amendments July 2017 e g n • General a — References have been updated. h C 1 Amendments January 2017 r e t • Sec.3 Verification of compliance p — Sec.3 [2]: The text has been clarified. a h C Main changes July 2016, entering into force as from date of 3 publication t r a • Sec.1 Application P — Sec.1 [1]: Scope of documentation and certification for CSR ships clarified. • Sec.3 Verification of compliance — Sec.3 [2] and Sec.3 [3]: The requirement to VL material certificate for hull structure is clarified for CSR and non-CSR ships. Scope of documentation for CSR ships clarified. — Sec.3 Table 1: Modified documentation requirements. Editorial corrections In addition to the above stated changes, editorial corrections may have been made. Rules for classification: Ships — DNVGL-RU-SHIP Pt.3 Ch.1. Edition July 2016, amended July 2017 Page 3 General principles DNV GL AS CONTENTS s t n e Changes – current.................................................................................................. 3 t n o Section 1 Application...............................................................................................6 C 1 Scope of application............................................................................ 6 1 1.1 General........................................................................................... 6 r e 2 Rule application................................................................................... 6 t p 2.1 Rule description................................................................................6 a 2.2 Rule requirements............................................................................ 6 h C 3 Section 2 Rule principles.........................................................................................8 t 1 General................................................................................................ 8 r 1.1 Rule objectives.................................................................................8 a P 2 General assumptions........................................................................... 8 2.1 Application and implementation of the rules.........................................8 3 Design basis........................................................................................ 8 3.1 General........................................................................................... 8 3.2 Hull form limit..................................................................................9 3.3 Transverse strength.......................................................................... 9 3.4 Design life....................................................................................... 9 3.5 Environmental conditions...................................................................9 3.6 Operating draughts......................................................................... 10 3.7 Internal environment.......................................................................10 3.8 Maximum service speed...................................................................10 4 Design principles............................................................................... 11 4.1 Overall principles............................................................................ 11 4.2 Design load scenarios......................................................................11 4.3 Structural capacity assessment.........................................................12 5 Rule design methods......................................................................... 12 5.1 General..........................................................................................12 5.2 Minimum requirements.................................................................... 13 5.3 Load-capacity based requirements.................................................... 13 5.4 Acceptance criteria..........................................................................14 Section 3 Verification of compliance..................................................................... 17 1 General.............................................................................................. 17 1.1 Newbuilding................................................................................... 17 2 Documentation...................................................................................17 Rules for classification: Ships — DNVGL-RU-SHIP Pt.3 Ch.1. Edition July 2016, amended July 2017 Page 4 General principles DNV GL AS 2.1 Calculation data and results............................................................. 17 s 2.2 Documentation requirement for design assessment of vessels...............17 t n 3 Certification....................................................................................... 22 e t 3.1 Certification requirements................................................................ 22 n o 4 Equivalence procedures..................................................................... 24 C 4.1 Rule applications.............................................................................24 1 4.2 Novel designs................................................................................. 25 r e 4.3 Alternative calculation methods........................................................ 25 t p Section 4 Symbols and definitions........................................................................ 26 a h 1 Primary symbols and units................................................................ 26 C 1.1 General..........................................................................................26 3 t 2 Symbols............................................................................................. 27 r 2.1 Ship’s main data.............................................................................27 a P 2.2 Materials........................................................................................ 28 2.3 Loads............................................................................................ 28 2.4 Scantlings...................................................................................... 30 3 Definitions..........................................................................................31 3.1 Principal particulars.........................................................................31 3.2 Position 1 and position 2................................................................. 34 3.3 Standard height of superstructure.....................................................35 3.4 Type 'A' and type 'B' freeboard ships.................................................35 3.5 Operation definition.........................................................................36 3.6 Reference coordinate system............................................................36 3.7 Naming convention......................................................................... 36 3.8 Glossary........................................................................................ 39 Section 5 Loading manual and loading instruments..............................................49 1 General requirements........................................................................ 49 1.1 Application..................................................................................... 49 2 Loading manuals................................................................................49 2.1 General requirements.....................................................................