ssc-452 aluminum structure design and fabrication guide ship

Aluminum Marine Structure Guide
2.6.3 Length of Extrusions 2-40
2.6.4 Limitations in Extrusion Thickness 2-40
2.6.5 Heat Treatment 2-42
2.6.6 Considerations for Extrusion Design 2-42
2.6.7 Dimensional Tolerances 2-47
2.7 Summary 2-49
3. Structural Design 3-1
3.1 Introduction 3-1
3.2 Structural Loads 3-3
3.2.1 Hull Girder Bending 3-4
3.2.2 Slamming Pressures 3-10
3.2.3 Hydrostatic Pressures 3-13
3.3 Structural Analysis Procedures 3-14
3.3.1 Frames and Stiffeners 3-14
3.3.2 Effective Plating 3-15
3.3.3 Analysis of Plating under Lateral Load 3-18
3.4 Allowable Stress Levels 3-28
3.5 Buckling Strength 3-30
3.5.1 Buckling Strength of Plating 3-30
3.5.2 Buckling Strength of Stiffeners 3-32
3.5.3 Stiffener Tripping 3-35
3.5.4 Stability of Stiffener and Frame Flanges and Webs 3-40
3.5.5 Stability of Grillages 3-41
3.6 Finite Element Analysis 3-41
3.7 Summary of Design 3-42
4 Structural Details 4-1
4.1 Introduction 4-1
4.2 Detail Classification 4-2
4.2.1 Beam Brackets 4-3
4.2.2 Tripping Brackets 4-11
4.2.3 Nontight Collars 4-13
4.2.4 Tight Collars 4-16
4.2.5 Gunwale Connection Details 4-18
4.2.6 Miscellaneous Opening Details 4-19
4.2.7 Miscellaneous Cutout Details 4-23
4.2.8 Deck Cutouts 4-25
4.2.9 Stanchion Heads and Heels 4-26
4.2.10 Stiffener End Details 4-30
4.2.11 Panel Breakers 4-32
4.3 Details Specific to Aluminum Structure 4-34
4.3.1 Deck Panels 4-35
4.3.2 Tubular Stiffeners 4-37
4.3.3 Egg Crate Detailing 4-38
4.3.4 Special Extrusions at the Gunwale 4-39
4.4 Conclusions 4-39
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