BS6349:Pat6:1989UDC(624.034.31.4+69.034.3/.4)98年7月2

British Standard Code of practice for Maritime structures Part 6. Design of inshore moorings and floating structures Structures maritimes-Code de bonne pratique Partie 6. Conception des mouillages cotiers et structures flottantes Leitfaden fur Bauten im Meer Teil 6. Ausfuhrung der kustennahen Verankerungen und von schwimmenden Bauten British Standards Institution Contents Page Page Foreword Inside front cover 3.5 Analysis of moorings Committees responsible Back cover 3.5.1 General 23. 5.2 Methods of analysis Code of practice 3.5.3 Mooring line characteristics 3.5.4 Directional effects Section one. General 3.5.5 Factors of safety 23 1.1 Scope 33.6 Design of mooring dolphins and booms 21.2 Definitions 33.6.1 Dolphins 41.3 Symbols 3.6.2 Mooring booms 24 3.6.3 Fendering and guides 24 Section two. Environmental loads 3.7 Anchors 2.1 General 53.7.1 Types 42.2 Return period and limiting conditions 3.7.2 Anchor holding power 25 2.3 Combined loading 5 3.7.3 Summary of features 25 2.4 Wave loading 5 3.7.4 Manufacture and certification 26 2.4.1 Wave climate 3.8 Mooring equipment 2.4.2 Description of wave loading 5 3.8.1 Chains 52 6 2.4.3 Basic design principles 3.8.2 Chain fittings 2.4.4 Simple estimates of forces and motions 63 3.8.3 Wire ropes 22 2.4.5 Physical models 3.8.4 Fibre ropes 0 2.4.6 Computational models 3.8.5 Winches, windlasses and capstans 3.8.6 Permanent mooring buoys 30 2.5 Wind loading 3.8.7 Miscellaneous fittings 3 2.5.1 General 7 3.8.8 Inspection 32 2.5.2 Basic wind speed (3 s gust) 2.5.3 Design wind speeds 3.9 Maintenance and inspection of 2.5.4 Force coefficient moorings 31 2.5.5 Trim and heel 9 3.9.1 General 31 3.9.2 Admiralty type and general inshore 2.5.6 Simplified method of evaluating wind loading 9 moorings 31 3.9.3 Floating docks and pontoons 31 2.6 Current loading 11 3.9.4 Light vessel and similar moorings in 2.6.1 General 11 exposed locations 31 2.6.2 Design speed 11 3.9.5 Single point moorings (SPMs) 3.6.3 Force coefficients 11 3.9.6 Inspection of wire rope during service 32 2.6.4 Evaluation of model tests and 3.9.7 Inspection of fibre rope during service 32 theoretical formulae 14 3.9.8 Inspection of chain during service 2.6.5 Simplifications in design 3.9.9 Inspection of connections in service 3.9.10 Inspection of anchors 33 Section three. Mooring 3.1 General 15 Section four. Floating structures 3.2 Types of moorings 15 4.1 General 34 3.2.1 General 15 Loads 3.2.2 Anchor leg moorings 15 4.2.1 Types 3.2.3 Mooring dolphins and booms 18 4.2.2 Load conditions 44 20 4.2.3 Load factors 3.3 Selection of mooring system 3.3.1 Operational and environmental 4.3 Codes and classification society rules 35 considerations 20 4.3.1 General 3.3.2 Commonly adopted mooring systems 20 4.3.2 Steel structures 3.4 Design of anchor leg mooring 20 4.3.3 Concrete structures 53 3.4.1 Checklist of design activities 24 4.4 Stability 3.4.2 Environmental and geotechnical data 21 4.4.1 General 3.4.3 Selection of number of mooring legs 21 4.4.2 Stability calculations 3.4.4 Length of mooring line 21 4.4.3 Intact stability 3.4.5 Selection of mooring components 21 4.4.4 Damage stability 38 3.4.6 Capacity of mooring components 21 [error] Page 3-28 21 11-url format illegal [/error]