Investigation on the hysteretic behavior of axially loaded cold-formed thick-walled steel members. (April 2022)

• Record Type: Journal Article
• Authors: Li, Gong-Wen; Li, Yuan-Qi; Ji, Han; Li, Ting; Zheng, Jin
• Is Part Of: Structures. Volume 38(2022)
• Page Start: 1411
• Page End: 1425
• Publication Date: 2022-04
• Subjects: Cold-formed steel -- Thick-walled -- Hysteretic behavior -- Ductility -- Width-to-thickness ratio -- Slenderness ratio; Structural engineering -- Periodicals; 624.1
• DOI: 10.1016/j.istruc.2022.02.060
• Languages: English
• ISSNs: 2352-0124

Abstract

Abstract: 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.