PowerPoint by Dr Fong - The Hong Kong Institute of Steel Construction

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Second-order Analysis and Design Method‣ Structural global imperfection• Shape <strong>of</strong> imperfection• 1) Notional horizontal force method- Suitable for regular structures• 2) Elastic buckling mode- Applicable for all structures• Value <strong>of</strong> imperfection• Storey height/20014
Second-order Analysis and Design Method‣ P-Δ Moment-Structural global imperfection+ Nodal geometric change0.5V 0.5V 0.5VV V V0.5H HUse in Moment Amplification factor in linear analysis15
Page 1 and 2: Second-order Direct Analysis Method
Page 3 and 4: 3Commonly used analysis and design
Page 5 and 6: First-order Linear Analysis Method
Page 7 and 8: Effective Length• How to define t
Page 9 and 10: What is Buckling?Buckling behavior9
Page 11 and 12: Second-order Analysis and Design Me
Page 13: Second-order Analysis and Design Me
Page 17 and 18: 17Commonly Used Analysis and Design
Page 23 and 24: Comment questionsRecommended by man
Page 25 and 26: 25Snap-through buckling problem
Page 27: Thank youYoung Members Group (YMG)H

PowerPoint by Dr Fong - The Hong Kong Institute of Steel Construction

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