BS 7608-1993 Fatigue design and assessment of steel structures
|
ID： |
71D24BE9945E4F45A50F1DE841CEC7FB |
|
文件大小(MB)： |
1.55 |
|
页数： |
88 |
|
文件格式： |
|
|
日期： |
2009-3-3 |
|
购买： |
文本摘录（文本识别可能有误，但文件阅览显示及打印正常，pdf文件可进行文字搜索定位）：
BRITISH STANDARD BS 7608:1993,Incorporating,Amendment No. 1,Code of practice for,Fatigue design and,assessment of steel,structures,BS 7608:1993,This British Standard, having,been prepared under the,direction of the Welding,Standards Policy Committee,was published under the,authority of the Standards,Board and comes into,effect on,15 April 1993,. BSI 03-1999,The following BSI references,relate to the work on this,standard:,Committee reference WEE/44,Draft for comment 87/77328 DC,ISBN 0 580 21281 5,Committees responsible for this,British Standard,The preparation of this British Standard was entrusted by the Welding,Standards Policy Committee (WEE/-) to Technical Committee WEE/44, upon,which the following bodies were represented:,AEA Technology,Association of Consulting Engineers,British Constructional Steelwork Association Ltd.,British Railways Board,Department of Transport,Department of Transport (Transport Research Laboratory),ESDU International Ltd.,Electricity Association,Federation of Manufacturers of Construction Equipment and Cranes,Institution of Civil Engineers,Institution of Structural Engineers,Ministry of Defence,Process Plant Association,Railway Industry Association of Great Britain,Society of British Aerospace Companies Limited,United Kingdom Offshore Operators Association,Welding Institute,Amendments issued since publication,Amd. No. Date Comments,8337 February 1995 Indicated by a sideline in the margin,BS 7608:1993,. BSI 03-1999 i,Contents,Page,Committees responsible Inside front cover,Foreword iv,Section 1. General,1.1 Scope 1,1.2 References 1,1.3 Definitions 1,1.4 Symbols and units 3,1.5 Assessment 3,1.6 Design life 3,1.7 Fatigue loading 3,1.8 Basis of fatigue analysis 4,1.9 Factors on fatigue life 4,1.10 Features influencing fatigue behaviour 5,1.11 Fracture mechanics 5,Section 2. Classification of details,2.1 General 6,2.2 Classification of details 6,2.3 Unclassified details 24,2.4 Workmanship and inspection 24,2.5 Welded steel decks 25,Section 3. Stress calculations,3.1 General 27,3.2 Stress range in parent material 27,3.3 Stress range for welds 27,3.4 Effective stress range for details in unwelded members in,which the whole or part of the stress is compressive 27,3.5 Calculation of stresses 27,3.6 Geometrical stress concentrations 28,3.7 Stresses in welds attaching shear connectors 29,3.8 Axial stresses in bolts 30,3.9 Derivation of stress spectra 30,Section 4. Allowable fatigue stresses,4.1 Tensile stress limitations 31,4.2 S-N curves 31,4.3 Modifications to basic S-N curves 31,4.4 Treatment of low stress cycles 33,4.5 Treatment of high stress cycles 34,4.6 Joints subjected to single stress range 34,4.7 Joints subjected to a stress spectrum 34,Annex A (normative) Fatigue design philosophy 46,Annex B (normative) Explanatory notes on detail classification 47,Annex C (normative) Guidance on the calculation of stress,concentration factors 51,Annex D (normative) Guidance on the use of fracture mechanics 61,Annex E (normative) Fatigue testing and the use of test data to,define design stresses 69,Annex F (normative) Cycle counting by the reservoir method 70,Annex G (informative) Background notes on sources of data 71,BS 7608:1993,ii . BSI 03-1999,Page,Annex H (informative) Bibliography 80,Figure 1 — Weld quality category determined by adjacent detail 35,Figure 2 — Reference stress in parent metal 36,Figure 3 — Reference stress in weld throat 36,Figure 4 — Typical example of stress concentrations due to,geometrical discontinuity 37,Figure 5 — Typical example of stress concentration caused by a,geometrical hard spot 38,Figure 6 — Stress concentration factors 39,Figure 7 — Example of hot spot stresses in a nodal joint 40,Figure 8 — Summary of mean-line Sr-N curves 41,Figure 9 — Summary of standard basic design Sr-N curves 42,Figure 10 — Sr/UTS-N curves for bolts with cut or, ground or rolled,threads under axial loading (class X) 43,Figure 11 — Toe grinding to improve fatigue strength 44,Figure 12 — Grinding of weld at tubular nodal joint 45,Figure 13 — Typical Sr-N relationship 45,Figure B.1 — Edge distance 52,Figure B.2 — Failure modes at weld ends 52,Figure B.3 — Failure modes in cruciform and T-joints 53,Figure B.4 — Failure modes in transverse butt welds 53,Figure B.5 — T-junction of two flange plates 53,Figure B.6 — Cruciform junction between flange plates 54,Figure B.7 — Alternative method of joining two flange plates 54,Figure B.8 — Local grinding adjacent to cope hole in type 7.1 joint 55,Figure B.9 — Use of continuity plating to reduce stress,concentrations in type 8.1 and 8.2 joints 55,Figure B.10 — Example of type 8.3 or 8.4 joint 56,Figure B.11 — Sing……
……