Analytical Solution of Plastoelastic Buckling of Rectangular Section Column Strengthened by Carbon Fibre Sheets

摘要

Based on the Jezek method of computing elastic-plastic buckling of compression-bending member, analytical solutions of buckling ultimate load for rectangular column strengthened by carbon fibre sheets are derived. A new method of theoretical research on elastic-plastic buckling of steel member is provided. Some conclusions are obtained by analyzing the stress of rectangular column before and after being pasted with carbon fiber sheets. The effects of different thickness of composites on the ultimate load of rectangular column are discussed, the theoretical analysis is proved correct by the numerical simulation test.