The non-linear finite element method for plate-shell structure is proposed to trace up whole-process analysis of tapered H-section steel column,while the effects of many factors on member such as residual stress,initial geometric imperfections and so on are focused.

Then take a nonlinear buckling calculation, based on the eigenvalue buckling analysis, which considered the effects of initial imperfection and more accurately reflected the performance of column on fire; studied effect of different elevated temperature conditions on fire resistance performance of H-section column.

The construction of frame structure installation of multi-layer H section steel mast;

Anti-fire Experimental Research on H-section Steel Beams;

The behaviours of three H-section steel columns under fire are investigated.

Behaviors of four H-section steel columns under fire were investigated in this paper.

Based on document ,this paper detailed the formula of critical load of for, variable section column with two sides hinged support by method of weighed residuals and proved that conclusion of document was a special case .