Buckling Behaviors of Cold-Formed Steel Built-Up Columns under Axial Compression Tests: Review Paper
Thu Ya Mon1, Janani Selvam2

1Thu Ya Mon*, Ph.D., Engineering, Faculty of Engineering, Lincoln University College, Malaysia.
2Janani Selvam, Faculty of Engineering, Lincoln University College, Petaling Jaya, Selangor Darul Ehsan, Malaysia.

Manuscript received on March 27, 2021. | Revised Manuscript received on April 06, 2021. | Manuscript published on May 30, 2021. | PP: 7-11 | Volume-10 Issue-1, May 2021. | Retrieval Number: 100.1/ijrte.A55930510121 | DOI: 10.35940/ijrte.A5593.0510121
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Abstract: In modern-day construction industry, cold-formed steel channels have been more interested as the conventional structural materials in place of hot-rolled steel members in order to reduce the weight of beams and girders without reducing their strength. Cold-formed steel becomes extensively used as structural and non-structural materials in building construction and engineering presentations. Various types of buckling behaviors usually govern the design strength of cold-formed steel channel sections. Because of their complex behaviors, the design guides for cold-formed steel are insufficient to be provided. This leads the questions to investigate the governing modes of failure of cold-formed steel built-up sections in both horizontal and vertical profiles. This article reviews the recent researches on cold-formed steel built up columns of diverse geometric shapes and connections under axial compression load. The objective is to summarize various modes of buckling in each built-up column. At the end of the study, the results are compared in detail through their geometric sections and provide recommendation for further studies.
Keywords: Buckling Behavior, Built-up Columns, Cold-Formed Steel, Fertical Profile.