An Analytical and Experimental Investigation of Cold-Formed Stiffened Channel Section in Compression
M. Ranjitham1, N. V. Manjunath2
1M. Ranjitham, Assistant Professor, Department of Civil Engineering, Bannari Amman Institute of Technology Sathyamangalam, Erode (Tamil Nadu), India.
2N. V. Manjunath, Assistant Professor, Department of Civil Engineering, Bannari Amman Institute of Technology Sathyamangalam, Erode (Tamil Nadu), India.
Manuscript received on 10 December 2018 | Revised Manuscript received on 29 December 2018 | Manuscript Published on 09 January 2019 | PP: 71-74 | Volume-7 Issue-4S November 2018 | Retrieval Number: E1872017519/19©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: This research paper reports on the numerical, experimental study of the cold formed steel column. The primary objective is to study the buckling modes, load carrying capacity and failure load of the stiffened channel sections. The buckling mode and load carrying capacity was determined using both analytical and experimental investigation. Analytical investigation is carried using finite element model in ANSYS 16.1 and results are documented for comparison. Two types of columns are considered one without stiffeners which is open cold formed steel thin walled section, with web width of 80 mm, thickness 5mm and length of lip is 25mm.Another member with stiffeners having web width of 80 mm thickness 5mm and length of lip is 25mm. The thickness of intermediate stiffeners is varied from 10 mm, 20 mm and 30 mm. The length of the Cold formed steel column is 1000 mm. The comparison of analytical and experimental study shows that error percentage is 5% only. It’s observed that cold formed steel column may fail due to local and distortional buckling. This failure can be rectified by introducing stiffener throughout the length of the column. Also use of stiffener in the column increase the load carrying capacity. The load carrying capacity was increased by increasing width of the stiffener.
Keywords: Cold Formed Steel, Stiffener, Finite Element Analysis And Local Buckling.
Scope of the Article: Structural Reliability Analysis