EN 1993-1-9-2025 欧洲规范3 eurocode 3 Design of steel structures Part 1-9

史蒂文 2025-04-04 246 4.77MB 124 页 20星币
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EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
EN 1993-1-9
March 2025
ICS 91.010.30; 91.080.13 Supersedes EN 1993-1-9:2005, EN 1993-1-
9:2005/AC:2009
English Version
Eurocode 3: Design of steel structures - Part 1-9: Fatigue
Eurocode 3: Calcul des structures en acier - Partie 1-9:
Fatigue
Eurocode 3: Bemessung und Konstruktion von
Stahlbauten - Teil 1-9: Ermüdung
This European Standard was approved by CEN on 29 December 2024.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved
worldwide for CEN national Members.
Ref. No. EN 1993-1-9:2025 E
EN 1993-1-9:2025 (E)
2
Contents Page
European foreword ............................................................................................................................................ 4
0 Introduction ............................................................................................................................................ 6
1 Scope .......................................................................................................................................................... 9
1.1 Scope of EN 1993-1-9 ........................................................................................................................... 9
1.2 Assumptions ........................................................................................................................................... 9
2 Normative references ........................................................................................................................ 10
3 Terms, definitions and symbols .................................................................................................... 10
3.1 Terms and definitions ....................................................................................................................... 10
3.1.1 General.................................................................................................................................................... 10
3.1.2 Fatigue actions ..................................................................................................................................... 15
3.1.3 Fatigue action effect ........................................................................................................................... 17
3.1.4 Fatigue resistance ............................................................................................................................... 20
3.1.5 Fatigue verification ............................................................................................................................ 25
3.2 Symbols .................................................................................................................................................. 26
3.2.1 Latin upper-case letters .................................................................................................................... 26
3.2.2 Latin lower-case letters .................................................................................................................... 27
3.2.3 Greek upper-case letters .................................................................................................................. 27
3.2.4 Greek lower-case letters .................................................................................................................. 28
4 Basis of fatigue design ....................................................................................................................... 28
5 Fatigue design concepts .................................................................................................................... 29
6 Fatigue design methods .................................................................................................................... 30
6.1 Design stress methods ...................................................................................................................... 30
6.2 Verification methods ......................................................................................................................... 30
7 Fatigue action effect ........................................................................................................................... 31
7.1 Calculation of nominal stresses ..................................................................................................... 31
7.2 Relevant nominal stresses ............................................................................................................... 32
7.3 Calculation of nominal stress ranges ........................................................................................... 35
7.3.1 General.................................................................................................................................................... 35
7.3.2 Design value of nominal stress range .......................................................................................... 35
7.4 Effective design value of stress range .......................................................................................... 36
8 Fatigue resistance ............................................................................................................................... 37
8.1 Fatigue resistance curves ................................................................................................................. 37
8.2 Classification of constructional details ....................................................................................... 43
8.3 Fatigue resistance modifications .................................................................................................. 44
8.3.1 Size effect ............................................................................................................................................... 44
8.3.2 Post-fabrication treatment .............................................................................................................. 44
9 Fatigue verification ............................................................................................................................ 45
9.1 Verification with respect to elastic behaviour ......................................................................... 45
9.2 Verification with respect to reference value of fatigue resistance ................................... 45
9.3 Verification with respect to fatigue limit ................................................................................... 46
9.4 Verification for multiaxial fatigue ................................................................................................ 46
10 Classified constructional details for the nominal stress method ...................................... 47
Annex A (normative) Verification using cumulative linear damage model ............................... 82
A.1 Use of this annex ................................................................................................................................. 82
A.2 Scope and field of application ........................................................................................................ 82
EN 1993-1-9:2025 (E)
3
A.3 Fatigue action effect ........................................................................................................................... 82
A.3.1 Stresses from fatigue actions.......................................................................................................... 82
A.3.2 Calculation of stress ranges ............................................................................................................ 82
A.3.3 Number of cycles corresponding with stress ranges ............................................................. 83
A.4 Fatigue resistance ............................................................................................................................... 83
A.4.1 Endurance for the nominal stress method ................................................................................ 83
A.4.2 Endurance for the hot spot stress method ................................................................................ 85
A.4.3 Endurance for the effective notch stress method ................................................................... 86
A.4.4 Endurance for welded joints subjected to High Frequency Mechanical Impact
Treatment .............................................................................................................................................. 86
A.5 Fatigue verification ............................................................................................................................ 86
Annex B (normative) Hot spot stress method ....................................................................................... 89
Annex C (normative) Effective notch stress method ........................................................................... 99
Annex D (informative) Recommendations for magnification factors k1 and stress
concentration factors kf ................................................................................................................. 103
D.1 Use of this annex .............................................................................................................................. 103
D.2 Scope and field of application ..................................................................................................... 103
D.3 Secondary moments in lattice girders ..................................................................................... 103
D.4 Flanges of I-section girders with transitions in thickness or width .............................. 104
D.5 Thickness transitions in plates ................................................................................................... 106
D.6 Shell structures ................................................................................................................................ 106
Annex E (informative) Recommendations for preloaded bolts and rods subject to tension
................................................................................................................................................................ 107
Annex F (informative) Fatigue design of welded joints subjected to High Frequency
Mechanical Impact treatment ..................................................................................................... 110
Annex G (informative) Hot spot stress reference detail method ................................................. 121
Bibliography .................................................................................................................................................... 123

标签： #欧洲规范

摘要：

EN 1993-1-9-2025是欧洲规范3（Eurocode 3）中关于钢结构设计的第1-9部分，专门针对钢材结构的疲劳强度评估与设计方法进行了全面更新。该标准为工程师、设计师和建筑行业专业人员提供了最新的技术规范，涵盖疲劳荷载作用下的钢结构构件和连接节点的耐久性计算、应力范围分类以及安全系数取值。与早期版本相比，2025版引入了更精确的疲劳寿命预测模型，并整合了近年来在焊接细节、高强钢应用及循环荷载试验方面的研究成果。通过遵循该规范，设计人员能够确保钢结构在桥梁、起重机轨道、海上平台及高层建

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作者：史蒂文 分类：国际标准 价格：20星币 属性：124 页 大小：4.77MB 格式：PDF 时间：2025-04-04

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