In the end, the design formula of stiffener is put forward which can supply reference to engineering.最后提出了加劲肋设计公式，供工程参考。
The existence of perforation affects buckling characteristic and load capacity of members and makes the design formula d孔的存在导致薄膜应力的重新分布，影响构件的屈曲特性和承载能力，使得无孔构件的分析与设计公式不再适用于开孔构件，因此有必要研究开孔构件。