General Dry Cargo Ships - Guidelines for Surveys, Assessment and Repair of Hull Structures (IACS Rec 55)

Number of Pages:
Published Date:
November 2017
Book Height:
298 mm
Book Width:
210 mm
1 kg
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Updated to IACS Rec 55, this publication is a guide to the survey, assessment and repair of the hull structures of general dry cargo ships.

This guide to the survey, assessment and repair of the hull structures of general dry cargo ships includes information on:

  • Class survey requirements
  • the technical background for surveys
  • planning, preparing and executing surveys.

It also includes visual examples of structural deterioration and damage related to each structural area (including details of issues to be aware of, possible causes and recommended repair methods).

The International Association of Classification Societies (IACS) is introducing a series of Guidelines with the intention of assisting the Surveyors of IACS Member Societies, and other interested parties involved in the survey, assessment and repair of hull structures for certain ship types.

The Guidelines are intended for a general dry cargo ship, single skin, which is designed with one or more decks specifically for the carriage of diverse forms of dry cargo.

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

The Guidelines include a review of survey preparation criteria 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 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 Guidelines 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.

The Procedure for Failure Incident Reporting and Early Warning of Serious Failure Incidents - "Early Warning Scheme - EWS", with the emphasis on the proper reporting of significant hull damages by the respective classification societies, will enable the analysis of problems as they arise, including revisions of these Guidelines.

These Guidelines have been developed using the best information currently available. It is intended only as guidance in support of the sound judgment of surveyors and is to be used at the surveyors’ discretion. It is recognized that alternative and satisfactory methods are already applied by surveyors. Should there be any doubt with regard to interpretation or validity in connection with particular applications, clarification should be obtained from the Classification Society concerned.

Chapter 1: Introduction

Chapter 2: Class Survey Requirements

2.1 Periodical classification surveys

2.2 Damage and repair surveys

2.3 Voyage repairs and maintenance

Chapter 3: Technical Background for Surveys

3.1 General

3.2 Definitions

3.3 Structural damages and deterioration

3.4 Structural detail failures and repairs

Chapter 4: Survey Planning, Preparation and Execution

4.1 General

4.2 Conditions for survey

4.3 Access arrangement and safety

4.4 Equipment and tools

4.5 Survey at sea or anchorage

4.6 Documentation on board

Chapter 5: Structural Detail Failures and Repairs

5.1 General

5.2 Catalogue of structural detail failures and repairs

Dedicated to safe ships and clean seas, IACS makes a unique contribution to maritime safety and regulation through technical support, compliance verification and research development. More than 90% of the world’s cargo carrying tonnage is covered by the classification design, construction and through-life compliance rules and standards set but the twelve Members Societies of IACS.

IACS is a not for profit membership organisation of classification societies that establish minimum technical standards and requirements that address maritime safety and environmental protection and ensures their consistent application. It carries out this responsibility through its panels, expert groups and project teams and provides a Quality System Certification Scheme (QSCS) that its Members comply with, as an assurance of professional integrity and maintenance of high professional standards. IACS is recognized as the principle technical advisor of IMO.

Number of Pages:
Published Date:
November 2017
Binding Format:
Book Height:
298 mm
Book Width:
210 mm
1 kg