Total views : 317

Behaviour of Cold Formed Steel Starred Section Subjected to Axial and Eccentric Load Condition

Affiliations

  • Department of Civil Engineering, Chennai, Tamil Nadu, India

Abstract


Objectives: This paper presents the ultimate load carrying capacity and behaviour of Cold Formed Steel (CFS) starred section with different end conditions and the specimens are subjected to axial compression. Methods: Theoretical study is carried out by using Euler’s load equation. Six plain sections of different sizes of 2mm thickness were tested as short columns. The analytical study is carried out using FEM software. The specimen used for testing have different dimensions, 60×60×2mm and 50×50×2mm with welded end condition, balled end condition and bolted end condition. The specimens are also tested experimentally by applying axial compression loading. Findings: The analysis is numerically carried out using FEM software and the results are compared. The experimental investigation of the cold-formed steel column is carried out by testing the column under loading frame with load applied manually and the test results are found match with the theoretical values. Compression tests were carried out on cold-formed steel starred angles under different end connections. As a result, welded end condition provides more strength than balled end condition where balled end condition provides more strength than the bolted end condition. Applications: This results can be further used with different section size or with different end condition under different loading conditions to find the ultimate strength of cold formed steel.

Keywords

Axial Deformation, Axial Load, Cold−formed Steel, Eccentric Load, Starred Section

Full Text:

 |  (PDF views: 245)

References


  • Vishnuvardhan S, Knight GMS. Behaviour of cold-formed steel single and compound plain angles in compression.Advanced Steel Construction. 2008; 4(1):46–58.
  • Goodarzian H, Hejazi SS. Optimization of the cross section of car lift column under pressure load using genetic algorithms. Indian Journal of Science and Technology. 2011 Jun; 4(6):1–5. DOI: 10.17485/ijst/2011/v4i6/30078.
  • Ayhan D, SchaferBW. Cold-formed steel member bending stiffness prediction. Journal of Constructional Steel Research. 2015 Dec; 115:148–59.
  • Sadovsky Z, Krivacek J, Ivanco V, Duricova A. Computational modelling of geometric imperfections and buckling strength of cold-formed steel. Journal of Constructional Steel Research. 2012 Nov; 78:1–7.
  • Zhao O, Rossi B, Gardner L, Young B. Behaviour of structural stainless steel cross-sections under combined loading – Part II: Numerical modelling and design approach. Engineering Structures. 2015 Apr; 89:247–59.
  • Young B, Liu Y. Experimental investigation of cold-formed stainless steel columns. Journal of Structural Engineering. 2003 Feb; 129(2):169–76.
  • Teh LH, Yazici V. Shear lag and eccentricity effects of bolted connections in cold-formed steel sections. Engineering Structures.2013 Aug; 52:536–44.
  • Keerthan P, Mahendran M. Improved shear design rules of cold-formed steel beams. Engineering Structures. 2015 Sep; 99:603–15.
  • Sakthivel M, Sureshbabu S. Experimental study on the flexural behaviour of cold formed steel section. International Journal of Engineering and Technology. 2015 May; 3(5):1– 6.
  • Monteiro G, Chodraui D, Neto JM, Gonçalves RM, Malite M. Distortional buckling of cold-formed steel members. Journal of Structural Engineering. 2006; 132(4):515–28.

Refbacks

  • There are currently no refbacks.


Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.