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【船级社】 DNV-RU-FD.pdf
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【船级社】 DNV-RU-FD
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RULES FOR CLASSIFICATION
Floatingdocks
EditionJuly2022
Floatingdocks
ThecontentofthisservicedocumentisthesubjectofintellectualpropertyrightsreservedbyDNVAS(“DNV”).Theuser
acceptsthatitisprohibitedbyanyoneelsebutDNVand/oritslicenseestoofferand/orperformclassification,certification
and/orverificationservices,includingtheissuanceofcertificatesand/ordeclarationsofconformity,whollyorpartly,onthe
basisofand/orpursuanttothisdocumentwhetherfreeofchargeorchargeable,withoutDNV’spriorwrittenconsent.DNV
isnotresponsiblefortheconsequencesarisingfromanyuseofthisdocumentbyothers.
ThePDFelectronicversionofthisdocumentavailableattheDNVwebsitednv.comistheofficialversion.Ifthere
areanyinconsistenciesbetweenthePDFversionandanyotheravailableversion,thePDFversionshallprevail.
DNVAS
FOREWORD
DNVrulesforclassificationcontainproceduralandtechnicalrequirementsrelatedtoobtainingand
retainingaclasscertificate.TherulesrepresentallrequirementsadoptedbytheSocietyasbasis
forclassification.
©
DNVASJuly2022
Anycommentsmaybesentbye-mailto[email protected]
Thisservicedocumenthasbeenpreparedbasedonavailableknowledge,technologyand/orinformationatthetimeofissuanceofthis
document.TheuseofthisdocumentbyotherpartiesthanDNVisattheuser'ssolerisk.Unlessotherwisestatedinanapplicablecontract,
orfollowingfrommandatorylaw,theliabilityofDNVAS,itsparentcompaniesandsubsidiariesaswellastheirofficers,directorsand
employees(“DNV”)forprovedlossordamagearisingfromorinconnectionwithanyactoromissionofDNV,whetherincontractorintort
(includingnegligence),shallbelimitedtodirectlossesandunderanycircumstancebelimitedto300,000USD.
CHANGES–CURRENT
ThisdocumentsupersedestheJuly2021editionofDNV-RU-FD.
Thenumberingand/ortitleofitemscontainingchangesishighlightedinred.
ChangesJuly2022,enteringintoforce1January2023
Topic Reference Description
Surveyrequirementsforfleet
inservice
Ch.6Sec.1,
Ch.6Sec.2,
Ch.6Sec.3,
Ch.6Sec.4
CompleterevampofCh.6inlinewithDNV-RU-SHIPPt.7
Ch.1.
Editorialcorrections
Inadditiontotheabovestatedchanges,editorialcorrectionsmayhavebeenmade.
Changes-current
Rulesforclassification:Floatingdocks—DNV-RU-FD.EditionJuly2022 Page3
Floatingdocks
DNVAS
CONTENTS
Changes–current............................................................3
Chapter1Classification.................................................... 7
Section1Principles............................................................................................................. 7
1Introduction......................................................................................................... 7
2Definitions............................................................................................................8
3Proceduralrequirements......................................................................................8
Chapter2Steelhullstructures....................................... 12
Section1Generalregulationsanddefinitions................................................................... 12
1Classification...................................................................................................... 12
2Definitions..........................................................................................................12
3Testing............................................................................................................... 13
Section2Materials,corrosionpreventionandwelding..................................................... 14
1General...............................................................................................................14
2Steelmaterials...................................................................................................14
3Alternativestructuralmaterials......................................................................... 15
4Corrosionpreventionandcorrosionadditions....................................................15
5Weldingandweldconnections.......................................................................... 15
Section3Designpressures............................................................................................... 16
1General...............................................................................................................16
2Externalpressures............................................................................................. 16
3Internalpressures............................................................................................. 17
Section4Longitudinalstrength.........................................................................................18
1General...............................................................................................................18
2Loadingconditions............................................................................................. 19
3Permissiblestresses.......................................................................................... 20
4Sectionmodulusandbucklingstrength............................................................. 20
5Deflectionandwaterlevelmonitoring...............................................................21
Section5Transversestrength...........................................................................................22
1General...............................................................................................................22
2Loadingconditions............................................................................................. 22
3Permissiblestresses.......................................................................................... 22
4Sectionmodulusandbucklingstrength............................................................. 23
Section6Platingandstiffeners.........................................................................................24
1General...............................................................................................................24
Contents
Rulesforclassification:Floatingdocks—DNV-RU-FD.EditionJuly2022 Page4
Floatingdocks
DNVAS
2Strengthevaluation............................................................................................24
Section7Localstrength....................................................................................................26
1General...............................................................................................................26
2Pontoonstrength............................................................................................... 26
3Dockwings........................................................................................................ 26
4Bulkheads...........................................................................................................27
5Anchorageattachments..................................................................................... 28
Chapter3Stabilityandfreeboard...................................29
Section1Stability..............................................................................................................29
1General...............................................................................................................29
Section2Freeboard...........................................................................................................31
1General...............................................................................................................31
Chapter4Machineryinstallations...................................32
Section1General...............................................................................................................32
1Scope................................................................................................................. 32
2Surveyduringconstruction................................................................................33
3Functionaltesting.............................................................................................. 33
4Operatingmanual.............................................................................................. 33
Section2Pipingsystems...................................................................................................34
1Ballastandbilgesystem....................................................................................34
2Coolingwatersystem........................................................................................ 35
Chapter5Fireprotection,detectionandextinction........ 36
Section1General...............................................................................................................36
1Scope................................................................................................................. 36
2Waterextinguishingsystems.............................................................................36
3Extinguishingsystemsinengineandboilerrooms............................................ 37
4Structuralfireprotection................................................................................... 38
5Portableextinguishers....................................................................................... 38
6Fireman'soutfit..................................................................................................38
Chapter6Surveyrequirements...................................... 39
Section1Introduction....................................................................................................... 39
1General...............................................................................................................39
Section2Generalrequirements........................................................................................ 42
1Fleetinserviceclasssystematic........................................................................42
2Planningandpreparation...................................................................................43
Contents
Rulesforclassification:Floatingdocks—DNV-RU-FD.EditionJuly2022 Page5
Floatingdocks
DNVAS
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