非均匀受压一边支承、一边自由板件的容许宽厚比

Permissible Width-Thickness Ratios of Flange Elements under Non-Uniform Compression with One Longitudinal Side Supported and Other Longitudinal Side Free

为修订《薄壁型钢结构技术规范》(TJ 18-75)的需要,本文对一边支承、一边自由板件在非均匀压力和剪力共同作用下的屈曲性能作了分析,并就现行《冷弯薄壁型钢结构技术规范》(GBJ 18-87)中有关非均匀受压的一边支承、一边自由板件的容许宽厚比的计算方法作了说明,列示了其计算公式及有关系数的来源和结果。

In order to revise the<<Specification for the Design of Thin-Walled Steel Structures>>(TJ 18-75), the behavior of flange elements subjected to a combination of non-uniform compression and shear with one longitudinal side supported and the other longitudinal side free are analyzed in this paper. The paper expounds the calculation method of the permissible width-thickness ratios of such elements and presents the corresponding formulas and coefficients, the latter being listed in a table, used in the <<Specification for the Design of Cold-Formed Thin-Walled Steel Structures>> (GBJ 18-87 ).