( 4 ) introducing how to evaluate load capacity pn of wall stud considering post buckling strength of plate element . local buckling effects are determined according to the effective width method used in specifications gb50018 _ 2002 and aisi96 ( 4 )参照gb50018 、 aisi96二本现行规范，采用有效宽度法考虑局部屈曲后强度并对非弹性屈曲应力进行修正，给出了考虑局部屈曲影响和进行非弹性修正后立柱的稳定承载能力p _ n 。
