Buckling behavior of cold-formed stub channels under compression

10th Asia Pacific Structural Engineering and Construction Conference 2018

工业技术（总论）

Ismail, R.^1^2 ; Bisnan, N.I.^2 ; Bon, Y.C.^2 ; Ishak, I.S.^2

Institute for Infrastructure Engineering and Sustainable Management (IIESM), Universiti Teknologi Mara (UiTM), Shah Alam, Selangor, Malaysia^1

Department of Civil Engineering Universiti Teknologi Mara (UiTM), Shah Alam, Selangor, Malaysia^2

关键词: Axial displacements;    Buckling behaviors;    Buckling behaviour;    Cold-formed steel members;    Compression member;    Load displacements;    Local buckling loads;    Maximum load capacity;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/513/1/012022/pdf
DOI  :  10.1088/1757-899X/513/1/012022

学科分类：工业工程学

来源: IOP

【 摘 要 】

Channel section is one of the most common cold-formed steel sections uses today. Cold formed steel members are widely used in roof trusses. Yielding and crushing are the modes of failure for short compression members or stub column. Design equations can be used to determine local buckling load capacity of stub column. In building construction, the stub column is found in the roof trusses. The purpose of this study is to understand buckling behaviour of the cold formed stub channels under compression. Seven (7) specimens were tested in this study. The results of local buckling, maximum load capacity and axial displacement of seven (7) cold-formed stub channels specimens were obtained by conducting the stub column test (compression test) and tensile test. Five (5) specimens are conservative to mean ratio and two (2) specimens are unconservative. Load-displacement graphs were plotted and two (2) specimens had achieved the expected curve. The failure patterns of the stub channels showed that the buckling occurred at the top edge and bottom edge of stub channels.