Performance Evaluation on Compressive Behaviour of Contrary Cold Formed Steel Sections
Praveen Kumar S1, Suresh Babu S2
1Praveen Kumar S, M.E. in Structural Engineering from SRM Valliammai Engineering College, Kattankulathur, Tamil Nadu, India
2Suresh Babu S, Assistant Professor, Department of Civil Engineering, SRM Valliammai Engineering College, Kattankulathur, Tamil Nadu, India
Manuscript received on 02 June 2019 | Revised Manuscript received on 10 June 2019 | Manuscript published on 30 June 2019 | PP: 475-482 | Volume-8 Issue-8, June 2019 | Retrieval Number: H6510068819/19©BEIESP
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Abstract: This paper exhibits an investigation on various cold formed steel channel sections which are placed Back-to-Back and Face-to-Face column members. The thickness of cold formed steel is confined to 3mm. A methodological investigation of uniaxial compression was performed numerically and experimentally. For this purpose, a total of four back-to-back channel sections and four face-to-face channel sections are assessed numerically using ANSYS 18.2 workbench. Breaking down the results of numerical investigation, three sections have demonstrated promising outcomes in carrying up the uniaxial load. Due to the clear evidence obtained in the test that three different sections show higher load carrying capacity and henceforth recommended for experimental investigation. Experimental tests are carried upon the chosen sections with a uniaxial load supported using pin-ended joints. The finite element model made utilizing numerical analysis demonstrates great concurrence with the test results. Using the experimental results and numerical results it is shown that the chosen sections provide better load carrying capacity. Inference of the results show that the section FF200-S0-C20- 3 takes up higher load carrying capacity of about 1.73 times the basic back-to-back channel section, which is viewed as better among the remainder of sections. Local buckling is the kind of failure accomplished when the section gets pass the ultimate strength.
Keyword: Cold Formed Steel, Compression, Buckling behaviour, Channel sections.
Scope of the Article: Behaviour of Structures under Seismic Loads.