GB/T 40528.1-2021Requirements for structural dimensions of multi-hull yacht—Part 1:Composite material (English PDF)

National Standard of the People's Republic of China

ICS

47.020

Classification

U 18

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Contents

• Preface
• Introduction
• 1 Scope
• 2 Normative references
• 3 Terms and definitions
• 4 Minimum board thickness requirement
• 5 Hull shell
• 5.1 Flat keel
• 5.2 Outboard bottom plate
• 5.3 Inboard bottom plate
• 5.4 Outboard plating
• 5.5 Inboard outboard
• 5.6 Wet deck
• 5.7 Tail sealing plate
• 5.8 Reinforcement of beams
• 5.9 Lower hull
• 5.10 Special structure
• 6 Outer frame
• 6.1 General provisions
• 6.2 Outboard bottom longitudinals
• 6.3 Outboard bottom stringers
• 6.4 Lateral reinforcement ribs on the outer bottom of the boat
• 6.5 Lateral ribs of outboard bottom
• 6.6 Lateral strong ribs of outboard bottom
• 6.7 Inboard bottom longitudinals
• 6.8 Inboard bottom stringers
• 6.9 Longitudinal stiffeners of the inner bottom of the boat
• 6.10 Transverse ribs of the inner bottom of the boat
• 6.11 Lateral strong ribs on the inner bottom of the boat
• 6.12 Outboard longitudinals
• 6.13 Outboard longitudinal girders
• 6.14 Lateral stiffeners of outboard plating
• 6.15 Transverse frame of outboard plating
• 6.16 Lateral strong frame of outboard plating
• 6.17 Inboard longitudinals
• 6.18 Inboard longitudinal girders
• 6.19 Lateral stiffeners of inboard shell
• 6.20 Transverse frame of inboard outboard plate
• 6.21 Lateral strong frame of inboard outboard plate
• 6.22 Wet deck longitudinals
• 6.23 Wet deck stringers
• 6.24 Wet deck beam
• 6.25 Wet deck transverse frame
• 6.26 Wet deck strong frame
• 6.27 Special structure
• 7 Single-layer bottom structure and accessory components
• 7.1 General provisions
• 7.2 Keel
• 7.3 Middle inner keel
• 7.4 Side stringer
• 7.5 Horizontal solid ribs
• 7.6 Transverse solid ribs of engine room
• 7.7 Front heel and first post
• 7.8 Brackets of tail seal plate
• 8 Double bottom structure
• 8.1 General provisions
• 8.2 Flat keel
• 8.3 Middle inner keel
• 8.4 Side stringers
• 8.5 Horizontal solid ribs
• 9 Bulkheads and deep tanks
• 9.1 General provisions
• 9.2 Longitudinal bulkhead structure of connecting bridge
• 9.3 Transverse bulkhead structure of connecting bridge
• 9.4 Additional strength requirements for overall load
• 9.5 Through hole
• 9.6 Local strength
• 9.7 Composite structure of structural tank/deep tank and connecting bridge
• 10 Deck structure
• 10.1 General provisions
• 10.2 Arrangement
• 10.3 Connecting bridge laminate
• 10.4 Strengthening of the connecting bridge
• 10.5 Special structure
• 11 Superstructures, deckhouses, bulwarks and pillars
• Appendix A (normative) Minimum layering value
• Appendix B (Normative) Design requirements for hull paving of non-displacement yachts
• Appendix C (Normative) Design requirements for hull paving of displacement yachts
• Appendix D (Normative) Requirements for the values of hydrostatic pressure and dynamic wave pressure of the hull
• Appendix E (Normative) Permissible Tensile Stress and Compressive Stress Limit Value Table
• Appendix F (Normative) Values of Shear Force, Bending Moment and Deflection Coefficient
• Appendix G (Normative) Limit span deflection ratio value table
• Appendix H (Normative) Geometrical Characteristics of Member Sections
• Appendix I (Normative) Requirements for effective width of strip plate
• Appendix J (Normative) Deck Opening Requirements Reference