By building entitative model, the local buckling of steel I-section column is studied.We have build different slender ratio column and find the slender ratio will influence the form of local bulking.

• 建立了钢框架柱的实体模型,考察了火灾中钢框架柱的局部屈曲现象,并通过对不同长细比的H型钢柱的局部屈曲分析,发现长细比的变化会影响火灾中H型钢柱的变形形式;