Double Hull Oil Tankers: Guidelines for Surveys, Assessment and Repair of Hull Structures, 2nd Edition 2020

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Language English
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SKU 9781856099127
Publisher Witherby Seamanship International
ISBN 9781856099127
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This manual (REC. 96) gives guidelines for a double hull oil tanker which is constructed primarily for the carriage of oil in bulk. It includes a review of survey preparation guidelines. This book illustrates examples of structural deterioration and damage, and highlights what to look for, possible cause and recommended repair methods.

The guidelines focus on the IACS Member Societies’ survey procedures but may also be useful in connection with survey/examination schemes of other regulatory bodies, owners and operators.

This manual has been developed using the best information currently available. It is intended only as guidance in support of the sound judgement of Surveyors, and is to be used at the Surveyors' discretion.

This book includes a review of survey preparation guidelines, which cover the safety aspects related to the performance of the survey, the necessary access facilities, and the preparation necessary before the surveys can be carried out.

The survey guidelines encompass the different main structural areas of the hull where damages have been recorded, focusing on the main features of the structural items of each area.

An important feature of the manual is the inclusion of the section which illustrates examples of structural deterioration and damages related to each structural area and gives what to look for, possible cause, and recommended repair methods, when considered appropriate.


1 Introduction

2 Classification survey requirements

2.1 General

2.2 Annual Surveys

2.3 Intermediate Surveys

2.4 Special Surveys

2.5 Drydocking (Bottom) Surveys

2.6 Damage and Repair Surveys

3 Technical background for surveys

3.1 General

3.2 Definitions

3.3 Structural Load Descriptions

3.4 Structural defects, damages and deterioration

3.5 Structural detail failures and repairs

4 Survey planning, preparation and execution

4.1 General

4.2 Survey Programme

4.3 Survey Planning Meeting

4.4 Conditions for survey

4.5 Access arrangement and safety

4.6 Use of Boats and Rafts

4.7 Personal equipment

4.8 Thickness measurement and fracture detection

4.9 Survey at sea or at anchorage

4.10 Documentation on board

4.11 Reporting and Evaluation of Survey

5 Structural detail failures and repairs

5.1 General

5.2 Actions to be taken by the Classification Society when Fatigue Failures have been Identified

5.3 Catalogue of structural detail failures and repairs

1 Bilge Hopper

2 Wing Ballast Tank

3 Bottom Ballast Tank

4 Web Frames in Cargo Tanks

5 Transverse Bulkhead in Cargo Tank

6 Deck Structure

7 Fore and Aft End Regions

8 Machinery and Accommodation Spaces


Title: Double Hull Oil Tankers: Guidelines for Surveys, Assessment and Repair of Hull Structures 2nd Edition 2020
Number of Pages: 140
Product Code: WS1742K
ISBN: ISBN 13: 978-1-85609-912-7 (9781856099127), ISBN 10: 1-85609-912-1 (1856099121)
ISBN for eBook: ISBN 13: 978-1-85609-913-4 (9781856099134), ISBN 10: 1-85609-913-X (185609913X)
Published Date: April 2020
Binding Format: Hardback
Book Height: 11 mm
Book Width: 25 mm
Book Spine: 14 mm
Weight: 0.90 kg

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