Flexural behaviour of cold formed steel beams with Diagonal stiffener

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
© 2014 by IJETT Journal
Volume-17 Number-8
Year of Publication : 2014
Authors : Pooja S.Ajay, Asst. Prof. J Samuel, Dr. P.S Joanna, Prof. Eapen Sakaria


Pooja S.Ajay, Asst. Prof. J Samuel, Dr. P.S Joanna, Prof. Eapen Sakaria "Flexural behaviour of cold formed steel beams with Diagonal stiffener ", International Journal of Engineering Trends and Technology (IJETT), V17(8),406-410 Nov 2014. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group


The adaptability of the different shapes and sizes of section that are available leads to the potential use of Cold Formed Steel as a complete building material. To improve the elastic buckling stress of the whole thin-walled I section including flanges and lips in pure shear, intermediate stiffeners are added. In this paper, the results of the experiments conducted on cold- formed steel beam encased with diagonal stiffened webs with a view to study their flexural strength are presented. A total of 6 specimens were tested. 2 specimens each of cold-formed steel I section, cold-formed steel I section with diagonal stiffeners and cold-formed steel I section with diagonal stiffeners in filled with concrete was used. All the specimens were tested for flexural strength under two point loading by using reaction type vertical loading frame. Ultimate load carrying capacity and ultimate deflection of each type of beam is calculated and compared. From the experimental investigations carried out to study the flexural behaviour of encased cold-formed steel beams with and without stiffeners, it was found that Cold-formed steel section with stiffeners in filled with concrete has resulted in increased resistance to lateral-torsion buckling.


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Cold-formed steel beam , diagonal stiffener, in filled beam, flexural behaviour.