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Experimental investigation on cold-formed steel beams under pure bending

Lee, Yeong Huei and Lee, Yee Ling and Tan, Cher Siang (2012) Experimental investigation on cold-formed steel beams under pure bending. Jurnal Teknologi, 58 . pp. 13-20. ISSN 127-9696 (Print); 2180-3722 (Electronic)

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Official URL: https://dx.doi.org/10.11113/jt.v58.1257

Abstract

This paper presents the flexural behaviour of cold-formed double lipped channels beams under pure bending action. Two channel sections are bolted back-to-back to form an I-shape structural beam member. A series of six experiment tests were carried out on beam specimens DC200 and DC250, each with 200 mm depth and 250 mm depth respectively. The thickness of beam section is 2 mm and the design yield strength is 350 N/mm2. All beams failed at local buckling at top-flange due to lateral instability of the cold-formed steel structural members. The moment resistance for DC200 is 17.87 kNm and DC250 is 31.53 kNm. The experimental results are compared to theoretical resistance prediction based on British Standard and Eurocode. The comparison showed that the experimental moment capacity is lower than the theoretical bending moment resistance but higher than theoretical buckling moment resistance from Eurocode. This showed that a better agreement is achieved between experimental data and Eurocode buckling moment resistance for cold-formed steel beam under pure bending.

Item Type:Article
Uncontrolled Keywords:Flexural behaviour, bending test, buckling moment, cold-formed steel, lipped channel sections
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Civil Engineering
ID Code:32678
Deposited By: Fazli Masari
Deposited On:17 Jun 2013 06:33
Last Modified:31 Jan 2019 11:30

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