DNVGL-RP-C203-2019 (2020) 海上钢结构疲劳设计 Fatigue design of offshore steel structures

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RECOMMENDED PRACTICE

DNVGLRPC203 EditionSeptember2019

AmendedJanuary2020

Fatiguedesignofoffshoresteelstructures

TheelectronicPDFversionofthisdocument,availableattheDNVGLwebsitednvgl.com,istheofficial,bindingversion.

DNVGLAS

This copy of the document is intended for use by turner, trey at Atkins Ltd. only. Downloaded 2020-07-22.

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FOREWORD

DNVGLrecommendedpracticescontainsoundengineeringpracticeandguidance.

©DNVGLASSeptember2019

Anycommentsmaybesentbyemailtorules@dnvgl.com

Thisservicedocumenthasbeenpreparedbasedonavailableknowledge,technologyand/orinformationatthetimeofissuanceofthis

document.TheuseofthisdocumentbyothersthanDNVGLisattheuser'ssolerisk.DNVGLdoesnotacceptanyliabilityorresponsibility

forlossordamagesresultingfromanyuseofthisdocument.

This copy of the document is intended for use by turner, trey at Atkins Ltd. only. Downloaded 2020-07-22.

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CHANGES–CURRENT

ThisdocumentsupersedestheApril2016editionofDNVGLRPC203.

Changesinthisdocumentarehighlightedinredcolour.However,ifthechangesinvolveawholechapter,

sectionorsubsection,normallyonlythetitlewillbeinredcolour.

AmendmentsJanuary2020

Topic Reference Description

Correction TableA5 Figure4andFigure5havebeenreplaced.

AmendmentsDecember2019

Topic Reference Description

NominalstressandSCFin

simpletubularjoints FigureF17 Anerrorinthefigureshowingthepotentialfatiguecracks

withnominalstressandstressconcentrationfactorshasbeen

correctedandexplanatorytexthasbeenadded.

ChangesSeptember2019

Topic Reference Description

Application [1.4] Thevalidityoftherecommendedpracticeforuseinseawater

withcathodicprotectionhasbeenincreasedfrom690MPto

759MPa.

[2.3.2] Addedmoreinformation.

[2.4.3] Textrelatedtothereferencethicknesshasbeencorrected.

[2.4.6] TexthasbeenaddedtoexplainthedifferenceinSNcurves

fortheoutsideandtheinsideoftubularjointsweldedfromthe

outsideonly.

FatigueanalysisbasedonSN

data

[2.9] Asectiononfrictionweldedboltshasbeenadded.

[3.1] Therecommendedvaluesofδ0hasbeenchangedforplated

structures.

SentencewithSCF=1.0fortheinsidehasbeenremovedas

thisisnotalwayscorrect.

[3.3.7.2]

Therecommendedvaluesofδ0hasbeenchangedfortubular

structures.

[3.3.7.3] Therecommendedvaluesofδ0hasbeenchangedatgirth

weldsintubularstructureswiththicknesstransitions.

Stressconcentrationfactors

[3.3.9] Referencehasbeenaddedto[F.17]withstressconcentration

factorswherethethicknessoftheconicalsectionisdifferent

fromthetubular.

Changescurrent

Recommendedpractice—DNVGLRPC203.EditionSeptember2019,amendedJanuary2020 Page3

Fatiguedesignofoffshoresteelstructures

DNVGLAS

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No further distribution shall be made. Requires a valid subscription to be used

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标签： #钢 #结构 #钢结构

摘要：

DNVGL-RP-C203-2019 (2020) 是DNV（挪威船级社）与GL（德国劳氏船级社）合并后发布的海上钢结构疲劳设计标准规范，适用于海上风电、油气平台及船舶结构的疲劳强度评估与设计。该文件提供了基于S-N曲线和断裂力学方法的详细技术指南，涵盖焊接接头、焊缝细节、环境腐蚀影响、载荷谱分析及疲劳寿命预测等内容，旨在确保海上钢结构在极端海洋环境下的长期安全性与可靠性。标准适用于新结构设计及在役结构评估，是海洋工程、船舶工程及相关领域的权威参考依据。

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DNVGL-RP-C203-2019 (2020) 海上钢结构疲劳设计 Fatigue design of offshore steel structures

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