BV NI 575：内河船舶状况评估程序CAP inland 2012

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【船级社】BV（ Bureau Veritas）的内河船舶状态评估程序——CAP内陆2012年版，是针对内河航行船舶制定的一套全面的标准和指南。该文档（NI 575 DNIR 00E）由Marine Division发布，隶属于BV的网站（http://www.veristar.com），反映了船级社在确保水上交通安全和维护设施性能方面的重要角色。作为全球知名的船舶检验机构，BV的目的是对各类船舶、艇或结构进行分类，包括但不限于海船、内河船、潜艇、气垫船、钻井平台、海上设施等，无论它们是在海洋或内陆水域运营，或者部分位于陆地。此外，程序也涵盖了与这些单位相关的辅助设备，如海底设施（如井口和管道）、系泊装置等。此规则笔记明确了CAP Inland（内河船舶条件评估计划）的目标，它是一个系统性的方法，用于定期评估船舶的状态，以确保其符合相关法规、标准和行业最佳实践。这包括但不限于结构完整性、机械性能、电气系统、通信设备以及船员的安全培训和证书状态。通过实施CAP Inland，船东和运营商可以确保他们的船只持续符合法定要求，并保持高效、安全的运行。认证证书可在NR217的Part A中获取，位于比利时安特卫普Mechelsesteenweg 128/136的Inland Navigation Management处，用户可以通过电话+32(0)32479400/+32(0)32479470联系或电子邮件bvnirulesbelgium@be.bureauveritas.com获取更多信息。值得注意的是，所有内容均受2012年BV版权保护，体现了船级社对知识产权的尊重。在执行CAP Inland的过程中，遵循ARTICLE 1中的规定至关重要，其中包括船舶的初次检验、定期检验、中间检验和特定情况下的附加检验，以确保船舶在整个生命周期内的持续适航性。此文档对于内河船舶的所有者、运营商、船员以及相关服务提供者来说，是理解和执行内河船舶安全管理与维护的重要参考工具，确保了航行安全、环境保护和经济效率的平衡。

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NI 575, Sec 1

July 2012 Bureau Veritas 11

6.7 Condition Assessment Reporting

6.7.1 On the completion of the condition assessment surveys, the lead CAP Inland surveyor provides a report that details

the extent of surveys carried out, the condition of the vessel and vessel sub-systems at the time of survey, details of repairs

and upgrades together with photographic records.

6.7.2 Where a structural condition assessment survey has been carried out and a critical area review has been under-

taken, then a Structural Monitoring Plan (SMP) shall be proposed if any anomalies were found that would warrant moni-

toring. This plan shall include a list of items to be monitored, a proposed timeframe for monitoring and

sketches/photographs, if applicable.

6.7.3 The BV CAP Inland report shall normally be issued within the period of one month to three months from the end of

the survey, depending on the scope of the client's requirements for CAP Inland survey and certification. The CAP Inland

report is provided with both paper and electronic copies according to the client's needs and requirements for reporting.

6.7.4 All BV condition assessment reports include an Executive Summary which gives an overview of the surveys carried

out, the surveys’ findings and the CAP rating(s) awarded.

6.7.5 The format of the condition assessment report varies depending on the scope of surveys and this format is normally

agreed with the client prior to the commencement of the surveys. For an extensive CAP Inland, the following report lay-

out is typical:

a) Cover page (Identifying the type of report with the vessel’s photo.)

b) Bureau Veritas general conditions

c) CAP Inland report index of documents

d) Vessel's particulars

e) CAP Inland Certificate (CERT)

f) CAP Inland report Executive Summary (EXEC SUM)

g) Request for CAP Inland survey (RFCAP)

h) CAP Inland Planning Document (PLAN DOC)

i) Surveyor's CAP Inland survey report summary (REP SUM)

• Gap/defects report (GAP)**

j) Vessel history report (VHR) **

• Class Hull Condition Evaluation Report **

• Class Ballast Tanks Protection Report **

• Previous Structural and Condition Assessments carried out **

k) Structure & Fatigue Analysis (SFA)**

• Areas to be monitored **

• Repair proposal **

l) Critical Structure Area Review (CSAR) **

m) Hull Structure Report - with photos (HSR) **

n) Ultrasonic thickness measurements review (TMA) **

o) Structural Monitoring Plan (SMP) **

p) Cargo containment system report - with photos (CCR) **

q) Hull machinery, fittings and systems report - with photos (HMR) **

r) Propulsion & auxiliary machinery, fittings & systems report - with photos (PMR) **

Note 1: **: If not applicable these items are left empty

6.8 Safety During Surveys

6.8.1 The client is responsible for providing the necessary facilities for the safe execution of the CAP Inland surveys.

6.8.2 The client will assume, with respect to the BV CAP Inland surveyor(s), all the responsibility of an employer for his

workforce, such as to meet the provision of applicable legislation. As a rule, the surveyor(s) have to be constantly accom-

panied during surveys by the client’s personnel.

NI 575, Sec 1

Bureau Veritas July 2012

6.8.3 Tank and void spaces are to be made safe for access i.e. gas freed, ventilated and illuminated. Adequate ventilation

and lighting is also to be provided for machinery spaces and accommodation areas if they are under survey.

6.8.4 In preparation for survey and to allow a thorough examination, all spaces, machinery, fittings and piping are to be

cleaned, including removal from surfaces of all loose accumulated corrosion scale. Spaces are to be sufficiently clean

and free from water, scale, dirt, oil residues, etc. to reveal corrosion, deformation, fractures, damages or other structural

deterioration. However, those areas of structures whose renewal has already been decided and planned by the owner,

need only be cleaned and de-scaled to a necessary extent allowing to determine the limits of the areas that are to be

renewed.

6.8.5 Sufficient illumination is to be provided to reveal corrosion, deformation, fractures, damages or other deteriora-

tion.

6.8.6 Where soft coatings have been applied, safe access is to be provided for the surveyor to verify the effectiveness of

the coating and to carry out an assessment of the conditions of internal structures which may include spot removal coat-

ing. When safe access cannot be provided, the soft coating is to be removed.

6.8.7 For overall survey, means of inspection are to be provided by the client to enable the surveyor to examine the hull

structure in a safe and practical way.

6.8.8 For close-up survey, one or more of the following means for access, acceptable to the surveyor, is to be provided:

a) Permanent staging and passages through structures

b) Temporary staging and passages through structures

c) Lifts and movable platforms

d) Other equivalent means

6.8.9 Survey afloat or at anchorage may be accepted provided that the surveyor is given the necessary assistance from

the personnel on board

6.8.10 Communication system is to be arranged between the survey party in the tank and the responsible officer on

deck.

6.8.11 Explosimeter, oxygen meter, breathing apparatus, life line and whistles are to be at hand during the survey.

NI 575, Sec 2

July 2012 Bureau Veritas 13

SECTION 2 HULL STRUCTURE

1 General

1.1 Concept of condition assessment of hull structure

1.1.1 Bureau Veritas’ Condition Assessment Programme for hull structure makes use of modern techniques in survey and

verification to extensively analyse, identify and report on the actual condition of the vessel’s structure. CAP Inland struc-

tural surveys may be carried out either in dry-dock or with the vessel is afloat.

1.1.2 The concept of condition assessment programme for hull structure combines the results of expert examination

from design data with an extensive vessel structural survey to produce a thorough assessment of the vessel’s condition

and the assignment of a CAP rating. The BV rating system for inland vessels is broadly defined in Sec 1, [5].

The range of structural CAP Inland surveys offered by Bureau Veritas varies depending on the client’s requirements.

The extent of surveys required to be carried out and the subsequent reporting requirements, are discussed and agreed with

the client prior to inputting the survey scope into the CAP Inland Planning document (PLAN DOC) (See

Sec 1, [6.2]

1.2 Scope of CAP Inland for hull structure surveys

1.2.1 For vessels that are less than 15 years of age, the scope of surveys shall be equivalent to the scope of overall sur-

veys, close-up surveys and ultrasonic thickness gauging as required for the vessel’s third class renewal survey, with an

additional 30% increase in structural close-up surveys and an additional 30% increase in ultrasonic thickness gauging

above that specified by the BV Inland Rules applicable at the time of the CAP Inland surveys.

1.2.2 For vessels that are 15 years of age or more, the scope of surveys shall be equivalent to the scope of overall sur-

veys, close-up surveys and ultrasonic thickness gauging as required for the vessel’s fourth class renewal survey, with an

additional 30% increase in structural close-up surveys and an additional 30% increase in ultrasonic thickness gauging

above that specified by the BV Inland Rules applicable at the time of the CAP Inland surveys.

1.2.3 A comprehensive structural analysis is recommended. A fatigue analysis may also be carried out, depending on

the vessel characteristics and operating conditions.

1.2.4 A Vessel History Report (VHR) is collated based on the previous 10 years of the vessels service life to enable a

review of the structural history of the vessel (See [3]).

1.2.5 A Critical Structural Area Review (CSAR) is carried out which assesses the results of structural computations and/or

review the vessel history report, so that critical areas can be identified and included for inspection within the survey

scope. A review report is provided (See [4]).

1.2.6 On the completion of all CAP Inland surveys, Structural Monitoring Plan (SMP) is compiled, in cooperation with

the client, as an aid for future monitoring of the vessel’s structure (See [11.2]).

2 CAP Inland Structure and Fatigue Analysis

2.1 General

2.1.1 CAP Inland Structural and Fatigue Analysis (SFA) is carried out using BV’s calculation programs. These programs

use direct engineering calculations and 2D/3D modelling to provide information regarding the strength of the vessel

structure (hull girder, secondary stiffeners, plating, primary supporting members) and to estimate eventually the design

fatigue life of structural details.

The Structural and Fatigue Analysis report calculations should be performed prior to the commencement of the physical

onboard condition assessment survey in order to provide information on structural items that may require specific

inspection during the close-up surveys as part of the CAP Inland surveys.

Note 1: The Vessel History Report is reviewed to identify repairs and/or modifications that may have been carried out so that these can be taken

into consideration during calculations.

NI 575, Sec 2

Bureau Veritas July 2012

2.2 Structural Strength Calculations

2.2.1 Structural strength calculations are to be carried out using the ‘Net Scantling’ approach in accordance with Bureau

Veritas’ Rules for the classification of inland navigation vessels.

As a first step, Bureau Veritas’ MARS Inland is employed to analyse the midship section in order to check the overall lon-

gitudinal strength of the vessel and the local strength of plates and stiffeners.

The analysis of the stress and buckling behaviour of the primary supporting members within the cargo area is then carried

out on coarse 3D models using the finite element method. Fine mesh 3D models are carried out subsequently on areas

where important gradient of stress are present in coarse modelling.

On completion of the structural strength calculations, the results are assessed against BV's rules to identify whether the

following items fulfill the rules requirements:

a) Longitudinal Strength (Hull section modulus at deck and at bottom of the midship section are assessed against the

strength criteria).

b) Local strength of plates

c) Local strength of secondary stiffeners

d) Buckling and Stress (The results are displayed with ratio of the actual value of stress over the permissible one). The fol-

lowing stresses are shown in ratio:

• Yielding and buckling criteria

• Longitudinal stress

•Transversal stress

• Shear stress

• Von Mises combined stress

2.3 Fatigue assessment

2.3.1 Depending on the vessel characteristics and operating conditions, the fatigue analysis may be included in the

scope of a tailor-made condition assessment and carried out in accordance with Society’s Rules, using the 'Notch Stress'

approaches.

2.4 CAP Inland Structure and Fatigue Analysis Report (SFA)

2.4.1 On the completion of the structure analysis, a comprehensive report is issued which includes the following deliv-

erables:

a) A report on the structural strength calculations and identifications of hot-spots.

b) If applicable according to [2.3], a report on fatigue analysis and identification of a 'List of structures found critical for

fatigue'.

c) Recommendations on structural areas to be modified, if any, and/or a repair methodology is to be proposed.

d) Recommendations on structural areas to be monitored, if any, including the provision of sketches to identify the hot-

spots areas.

Should this comprehensive analysis identify areas which require regular inspection or monitoring then the results are

added to the scope of close-up surveys, included in the Structure Monitoring Plan (SMP) and are reported within the Crit-

ical Structural Areas Review (CSAR).

2.5 Alternative Structure Analysis

2.5.1 In some cases, clients may require an alternative Structure Analysis for a particular vessel due to the size of the ves-

sel, type of the vessel, recurring damage in a specific location, or for a specific charterer's requirement.

In such cases, Bureau Veritas' experts are able to give advice on specific requirements and can assemble a tailor-made

package of Structural Analysis which covers specific requirement in this regard.

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BV NI 575：内河船舶状况评估程序CAP inland 2012

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