Investigation on the hysteretic behavior of axially loaded cold-formed thick-walled steel members

作者：Li, Gong-Wen^*; Li, Yuan-Qi; Ji, Han; Li, Ting; Zheng, Jin

来源：Structures, 2022, 38: 1411-1425.

DOI：10.1016/j.istruc.2022.02.060

• Cold-formed steel
• Thick-walled
• Hysteretic behavior
• Ductility
• Width-to-thickness ratio
• Slenderness ratio

Many researches have been carried out on the material properties, residual stress, and bearing capacity on the cold-formed thick-walled steel members. However, researches on the hysteretic behavior are quite few. An experimental study on the hysteretic behavior of axially loaded cold-formed thick-walled steel members was presented in this paper. It was shown that the width-to-thickness ratio and slenderness ratio had a significant influence on the failure mode and hysteretic behavior. Then finite element models in accordance with the test specimens were built and parametric analyses were conducted. The influence of width-to-thickness ratio and slenderness ratio on the hysteretic behavior and ductility was studied. On the basis of test and parametric analysis results, design recommendations for the limitation of width-to-thickness ratio and slenderness ratio were proposed.

• 单位
  同济大学