Research on Buckling Performance of Cold-Formed Uniformly Compressed Plates with Complex Edge Stiffeners

GAO Shuran; ZHANG Junfeng; LI Bo; HAN Dongguang; REN Liqun

doi:10.3724/j.gyjz.G22122203

Volume 55 Issue 3

Mar. 2025

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2025 > 55(3): 88-99

GAO Shuran, ZHANG Junfeng, LI Bo, HAN Dongguang, REN Liqun. Research on Buckling Performance of Cold-Formed Uniformly Compressed Plates with Complex Edge Stiffeners[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(3): 88-99. doi: 10.3724/j.gyjz.G22122203

Citation:

GAO Shuran, ZHANG Junfeng, LI Bo, HAN Dongguang, REN Liqun. Research on Buckling Performance of Cold-Formed Uniformly Compressed Plates with Complex Edge Stiffeners[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(3): 88-99. doi: 10.3724/j.gyjz.G22122203

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Research on Buckling Performance of Cold-Formed Uniformly Compressed Plates with Complex Edge Stiffeners

doi: 10.3724/j.gyjz.G22122203

1. School of Water Conservancy and Transportation, Zhengzhou University, Zhengzhou 450001, China;
2. School of Civil Engineering, Zhengzhou University, Zhengzhou 450001, China;
3. The Second Construction Co., Ltd. of China Construction First Group, Beijing 102600, China

Received Date: 2022-12-22
Available Online: 2025-06-07
Publish Date: 2025-03-20

Abstract

Abstract

Compared with simple edge stiffeners， complex edge stiffeners have been widely used in design because of their superior performance in limiting plate buckling and improving local stability. However， most research on complex edge stiffeners is qualitative. In this paper， based on the buckling performance analysis of the plate under uniform compression， the judgment principle based on the buckling half-wavelength and buckling coefficient was put forward. The limits and configuration of the complex edge stiffeners were analyzed and suggested. The minimum limit of edge stiffeners was based on the principle of whether the stiffness was greater than the minimum edge stiffness and the buckling half-wavelength was less than the width of plates. The maximum limit of the edge stiffeners was based on the principle of whether the uniformly compressed plate buckled before the stiffened plate and the economic consideration. Based on the comparison and analysis of the Chinese and American codes on simple edge stiffeners， the limits were determined：the minimum limit met the requirements that the buckling half-wavelength was equal to the width of the stiffened plate or the buckling coefficient was greater than 4.24， and the maximum limit was no more than the width of the stiffened plate. Based on the parametric analysis of the complex edge stiffeners， the design table and calculation formula of the limits of height-thickness ratios were obtained. Based on the optimization algorithm， the suggestions and the optimum size of complex edge stiffeners of cold-formed uniformly compressed plates were obtained with consideration of economy and mechanics.
- complex edge stiffener,
- finite strip method,
- cold-formed thin-walled,
- buckling,
- height- thickness ratio

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References(24)

References

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