BS ISO 15402-2000 Ships and marine technology Bulk carriers Repair quality of hull structure《船舶和海洋技术 货物运输船 船体结构维修质量》.pdf

1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS ISO 15402:2000 ICS 47.

2、020.10 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Ships and marine technology Bulk carriers Repair quality of hull structureThis British Standard, having been prepared under the direction of the Engineering Sector Committee, was published under the authority of the Standa

3、rds Committee and comes into effect on 15 March 2000 BSI 03-2000 ISBN 0 580 34353 7 BS ISO 15402:2000 Amendments issued since publication Amd. No. Date Comments National foreword This British Standard reproduces verbatim ISO 15402:2000 and implements it as the UK national standard. The UK participat

4、ion in its preparation was entrusted by Technical Committee SME/32, Ships and marine technology - Steering Committee, to Subcommittee SME/32/8, Ships and marine technology - Structures, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/Eu

5、ropean committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secreta

6、ry. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards E

7、lectronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages Thi

8、s document comprises a front cover, an inside front cover, the ISO title page, pages ii to v, a blank page, pages 1 to 18, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued.Referencenumber ISO15402:2000(E) INTERNATI

9、ONAL STANDARD ISO 15402 Firstedition 2000-02-15 ShipsandmarinetechnologyBulk carriersRepairqualityofhullstructure Navires et technologie maritime Vraquiers Qualit de rparation de la structure de la coqueISO15402:2000(E) ii ISO15402:2000(E)iii Contents Page Foreword.iv Introduction.v 1 Scope1 2 Norma

10、tivereference1 3 Termsanddefinitions.1 4 Inspectionandmaintenance2 4.1 Inspection.2 4.2 Maintenanceofcoatingsystem.5 5 Repairofthehullstructure.6 5.1 Assessmentofthehullstructure.6 5.2 Requirementsforhullstructurerepair12 5.3 Protectionofthehullstructurefromcorrosion.15 5.4 Approvalanddocumentationa

11、fterrepairofthehullstructure17 Bibliography18ISO15402:2000(E) iv Foreword ISO(theInternationalOrganizationforStandardization)isaworldwidefederationofnationalstandardsbodies(ISO memberbodies).TheworkofpreparingInternationalStandardsisnormallycarriedoutthroughISOtechnical committees.Eachmemberbodyinte

12、restedinasubjectforwhichatechnicalcommitteehasbeenestablishedhas therighttoberepresentedonthatcommittee.Internationalorganizations,governmentalandnon-governmental,in liaisonwithISO,alsotakepartinthework.ISOcollaboratescloselywiththeInternationalElectrotechnical Commission(IEC)onallmattersofelectrote

13、chnicalstandardization. InternationalStandardsaredraftedinaccordancewiththerulesgivenintheISO/IECDirectives,Part3. DraftInternationalStandardsadoptedbythetechnicalcommitteesarecirculatedtothememberbodiesforvoting. PublicationasanInternationalStandardrequiresapprovalbyatleast75%ofthememberbodiescasti

14、ngavote. AttentionisdrawntothepossibilitythatsomeoftheelementsofthisInternationalStandardmaybethesubjectof patentrights.ISOshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights. InternationalStandardISO15402waspreparedbyTechnicalCommitteeISO/TC8, Ships and marine technology, SubcommitteeSC

15、8, Structures.ISO15402:2000(E)v Introduction TheaimofthisInternationalStandardistoprovideguidelinesforgoodship-repairconditions. Details,whereappropriate,giveninthisInternationalStandardweredevelopedwithreferencetoapplicable InternationalAssociationofClassificationSocieties(IACS)rulesandrequirements

16、.INTERNATIONALSTANDARD ISO15402:2000(E)1 ShipsandmarinetechnologyBulkcarriersRepairqualityof hullstructure SAFETYPRECAUTIONSItistheresponsibilityoftheuserofthisInternationalStandardtoestablish appropriatesafetyandhealthpractices,anddeterminetheapplicabilityofregulatorylimitationspriorto use. 1 Scope

17、 ThisInternationalStandardspecifiesthequalityrequirementsforthehullstructuremaintenanceandrepairofsteel bulkcarriers.Itdoesnotapplytodouble-skinbulkcarriers. RequirementsfortheconstructionofsteelbulkcarriersaregiveninISO15401. 2 Normativereference Thefollowingnormativedocumentcontainsprovisionswhich

18、,throughreferenceinthistext,constituteprovisionsof thisInternationalStandard.Foradatedreference,subsequentamendmentsto,orrevisionsof,thepublicationdo notapply.However,partiestoagreementsbasedonthisInternationalStandardareencouragedtoinvestigatethe possibilityofapplyingthemostrecenteditionofthenormat

19、ivedocumentindicatedbelow.Foranundated reference,thelatesteditionofthenormativedocumentreferredtoapplies.MembersofISOandIECmaintain registersofcurrentlyvalidInternationalStandards. ISO15401: 1) , Ships and marine technology Bulk carriers Construction quality of hull structure. 3 Termsanddefinitions

20、ForthepurposesofthisInternationalStandard,thefollowingtermsanddefinitionsapply. 3.1 bulkcarrier shipwhichisgenerallyconstructedwithasingledeck,topsidetanksandhoppersidetanksincargospaces,andis intendedprimarilytocarrydrycargoinbulk 3.2 length L NOTE Thedefinitionistakenfromtherulesofclassificationso

21、cieties. 3.3 coatingcondition 3.3.1 goodcoating conditionwithonlyminorspotrusting 1)Tobepublished.ISO15402:2000(E) 2 3.3.2 faircoatingcondition conditionwithlocalbreakdownatedgesofcoatingofstiffenersandweldconnectionsand/orlightrustingover20% ormoreofareasunderconsideration,butlessthanasdefinedforpo

22、orcoatingconditions 3.3.3 poorcoatingcondition conditionwithgeneralbreakdownofcoatingover20%ormoreofareasorhardscaleon10%ormoreofareas underconsideration 4 Inspectionandmaintenance 4.1 Inspection 4.1.1 Inspectionpurposes Inspectionofthehullstructureshallbecarriedoutearnestlybyspeciallyhiredinspectio

23、ncrews(referredtoas “crew”inthefollowingtext).Thisisinadditiontotheperiodicalinspectionbytheclassificationsociety.Thepurpose ofthisinspectionistoensurethesafetyofabulkcarrierwhileonavoyageandduringloadingand/orunloadingat theport,andtobereadyforrepairsindockand/orberth.Corrosion,fractureanddeformati

24、onofthehullstructure andanyothercircumstancerelatingtothestrengthofthehullstructureandthesafetyoftheshipshallbe discoveredbythecrewsintime.Theinspectionshouldbecarriedoutinaccordancewithawrittenestablished procedurevalidforthecharacteristicsofthevessel. Theloading/unloadingsequenceconditionshouldber

25、ecorded.ISO15402:2000(E)3 4.1.2 Inspectionitemsandperiods Thecrewsinspectionshallbecarriedoutinaccordancewiththerequirementsfortheitemsandperiodsgivenin Table1. Table1Itemsandperiodsofcrewsinspection No. Area Kindof deterioration Mainpoints Maximum period 1 Shellplate Corrosion Deformation Weldcorro

26、sion Fracture Corrosion and deformation of side shell 6 months 2 Upperdeck Corrosion Deformation Fracture Weldcorrosion a) Fracture at the hatch corner of the deck; b) Corrosion and fracture at the transition fromcross-deckplatingtothestrength-deck plating; c) Corrosion and deformation of cross-deck

27、 platingbetweenhatchesandtheunderdeck stiffeners/structure; d) Fracture at the connections of the hatch- endbeamsandthetop-sidetank; e) Corrosion and fracture of the deck plating aroundthefoundationsofdeckfittings; f) Fracture of the deck plating at the toes of end/staybracketsofhatchwaycoamings; g)

28、 Fracture of the deck at the toes of the bulwarkstay,especiallyattheexpansion joints; h) Corrosion at the connections of the upper deckandairpipe,ventilationduct,fillingpipe andsoundingpipe. Fracture: 3months Corrosion: 6months 3 Superstructure a Corrosion Deformation Fracture Corrosion at the lower

29、 ends of the super- structureanddeck-housewalls; 6months 4 Hatchcoaming Corrosion Deformation Fracture a) Corrosion and fracture in the form of cut- outsandnotchesofthecoamingsandtheir end/staybrackets; b) Fracture in the fillet-weld connection of the coamingstothedeck,particularlyatthe coamingplate

30、atthecornerjunctionofthe longitudinalandtransversehatchcoamings; c) Corrosion and fracture at the termination ofthehatch-coamingextensionbrackets. 3months 5 Hatchcover Corrosion Deformation Watertight a) Corrosion of plating and stiffeners; b) Damaged sealing; c) Damaged moving mechanism. Everyvoyag

31、e a Intheaccommodationspace,steelsurfacescannotbeinspectedfromtheinsidebecausewallsanddecksarecovered withliningsandceilings.Inspectionscanbemadefromtheoutsideofthespace.ISO15402:2000(E) 4 Table1(continued) No. Area Kindof deterioration Mainpoints Maximum period 6 Cargohold Corrosion Deformation Fra

32、cture Weldcorrosion Detachmentof frames a) Corrosion, fracture and detachment of side-shellframesontheirwebs; b) Corrosion, fracture and detachment at the toesoftheupperandlowerbracketsofthe sideframes; c) Fracture at the weld connections of the corrugatedbulkheadtothestool; d) Fracture at the weld

33、connections of transversebulkheadsorstoolstructureto boundary-deckplate,side-shellplate,sloping plateoftopsidetanksandhoppertanks,inner- bottomplate,etc.; e) Corrosion at the midheight and bottom of thetransversebulkheads; f) Fracture at the transition regions with fore bulkheadofengineroomandcollis

34、ionbulk- headduetodiscontinuitiesofthelongitudinal structures. Side-shellframes ofvesselabove 15years: 6months Anyothercase: 12months 7 Innerbottom Lowpartof bulkhead Side-shell structure Deformation Fracture Damage of inner bottom, lower part of bulk- headsandside-shellstructureduetoloading/ unload

35、ingoperations. Everyvoyage 8 Topsidetank, hoppertankand otherballast tanks Corrosion Deformation Fracture a) Corrosion of the internal structure of the topsidetankandinlet/outletseawatervalves duetotheheatofupperdeckandthe moistureinthetank; b) Fracture at the corners of transverse webs intopsidetan

36、k,hoppertank,andatthe transversebracketswherethereisnotrans- verseweb; c) Fracture at the connections of longitu- dinalstotransversewebs,i.e.,atthecut-out oftransversewebinthetopsidetankand hoppertank; d) Fracture due to the knuckle between the innerbottomandhoppertankslopingplating; e) Fracture in

37、the double bottom at the connectionsoflongitudinalstofloors,i.e.,at thecut-outoffloorsandatthediscontinuities ofthelongitudinals; f) Fracture at the edges of the unreinforced openingsandmanholes; g) Fracture at the connections of the deck longitudinalstothebulkheads. h) Corrosion / fracture of plati

38、ng and internal stiffeningoftransversetanksontopof bulkheads(ifany). Coatingin good condition: 30months Coatingin fair / poor condition,or vesselabove 15years: 12monthsISO15402:2000(E)5 Table1(continued) No. Area Kindof deterioration Mainpoints Maximum period 9 Engineroom Corrosion Deformation Fract

39、ure a) Corrosion of the inner-bottom plating in theengineroom; b) Corrosion and fracture at the weld connectionsofthetop/bottomendofside- shellplatingtothefore/aftbulkheadsofthe engineroom. Coatingin good condition: 30months Coatingin fair / poor condition,or vesselabove 15years: 12months 10 Forecas

40、tle spaces Bosunstore Corrosion Deformation Fracture a) Corrosion at the bottom of forecastle spacesandBosunstore; b) Corrosion at the joint of the top of fore peakandtheaftwallofforecastle; c) Corrosion and deformation at side-shell platingsoftheforecastleduetoroughseasor contactwithotherobjectssuc

41、hasquay,buoy orothervessels. Coatingin good condition: 30months Coatingin fair / poor condition,or vesselabove 15years: 12months 11 Fore/aftpeak Corrosion Deformation Fracture Weldcorrosion Detachmentof frames a) Corrosion at the top of fore/aft peak; b) Fracture of the side shell and damage of thei

42、nternalstructureintheforepeakdueto collision/orsloshing; c) Fracture of the internal structure of the aft peakduetopropellervibration; d)Inspectionoftheanti-corrosionzincplates intheforeandaftpeakshallbecarriedout. Coatingin good condition: 30months Coatingin fair / poor condition,or vesselabove 15y

43、ears: 12months 4.1.3 Inspectionreports Theinspectionreportsshallbewrittenafterthecrewsinspectionofthehullstructure,andbefiledonboard. Personnelname,date,location,contents,resultoftheinspectionandsuggestedfollow-onactionsshallbeincluded inthereports.Reportswithproposalsforremedialactionsshallbeforwar

44、dedtotheoperatorofthevessel.Follow- upproceduresshallbeestablished. 4.2 Maintenanceofcoatingsystem 4.2.1 Maintenancepurposes Maintenanceoftheareaswhichaffectthesafetyoftheshipshallbecarriedoutintimebythecrewafterthe inspectionofthehullstructure.Themaintenanceshallbecarriedoutwithinthelimitsofthecrew

45、sabilityandthe crewssafetyshallbeinsured.ISO15402:2000(E) 6 4.2.2 Maintenanceitemsandperiods Thecrewsmaintenanceofthehull-structurecoatingshallbecarriedoutinaccordancewiththerequirementsfor theitemsandperiodsgiveninTable2. Table2Itemsandperiodsofcrewsmaintenance No. Area Item Period 1 Shellplateabov

46、elightwaterlines Removecorrosion Patchupcoating 6months 2 Upperdeck,forecastleandpoopdeck,superstructure Removecorrosion Patchupcoating 6months 3Bulwark Removecorrosion Patchupcoating 6months 4 Hatchcoaming Removecorrosion Patchupcoating 6months 5 Hatchcover,pressurepipesofhydraulichatchcover Remove

47、corrosion Patchupcoating 6months 6 Cargohold Removecorrosion Patchupcoating 30months or12 3 months a 7 Topsidetank Removecorrosion Patchupcoating 30months or12 3 months a 8 Hoppertank,ballasttankindoublebottom Removecorrosion Patchupcoating 30months or12 3 months a 9 Foreandaftpeak Removecorrosion P

48、atchupcoating 30months or12 3 months a a Forthosebulkcarriershavingagesof15yearsormore,themaintenanceperiodof12 3monthsisrequired. 4.2.3 Maintenancerecords Themaintenancerecordsshallbewrittenafterthecrewsmaintenanceofthehullstructure.Personnelname,date, locationandcontentsofthemaintenanceshallbeincl

49、udedintherecords. 5 Repairofthehullstructure 5.1 Assessmentofthehullstructure 5.1.1 Thicknessmeasurementofthehullstructure 5.1.1.1 General Inordertodeterminetheextenttowhichthelongitudinalstrengthandlocalstrengthofabulkcarrierareweakened duetothestructuralwastage/corrosionandtoadoptnecessaryrepairmeasurestoreinforcethehullstructure,itis requiredtomeasurethethicknessofthehullstructuralmembersduringtherelatedsurvey.ISO15402:2000(E)7 5.1.1.2 Measurementmethod 5.1.1.2.1 Thethickness-measuringequipmentshallbecalibratedbeforeuse. 5.1.1.2.2 Coatingandrus