Tests of LiteSteel Beams subject to combined shear and bending actions
Keerthan, Poologanathan, Hughes , David, & Mahendran, Mahen (2012) Tests of LiteSteel Beams subject to combined shear and bending actions. In Australian Structural Engineering Conference 2012 ( ASEC2012), Engineers Australia, Perth, Western Australia.
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This paper presents the details of an experimental study of a cold-formed steel beam known as LiteSteel Beam (LSB) subject to combined shear and bending actions. The LSBs have the beneficial characteristics of torsionally rigid rectangular hollow flanges combined with economical fabrication processes from a single strip of high strength steel. They combine the stability of hot-rolled steel sections with the high strength to weight ratio of conventional cold-formed steel sections. The LSB sections are commonly used as flexural members in residential, industrial and commercial buildings. In order to ensure safe and efficient designs of LSBs, many research studies have been undertaken on the flexural and shear strengths of LSBs. To date, however, no investigation has been conducted into the strength of LSB sections under combined shear and bending actions. Hence a detailed experimental study involving 18 tests was undertaken to investigate the behaviour and strength of LSBs under combined shear and bending actions. Test results showed that AS/NZS 4600 design rules for unstiffened webs grossly underestimated the capacity of LSBs. Therefore improved design equations were proposed for the combined shear and bending capacities of LSBs based on experimental results.
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|Item Type:||Conference Paper|
|Keywords:||LiteSteel beams, Combined shear and bending actions, Experiments, Cold-formed steel structures, Hollow flanges|
|Subjects:||Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Structural Engineering (090506)|
|Divisions:||Current > QUT Faculties and Divisions > Science & Engineering Faculty|
|Copyright Owner:||Copyright 2012 Please consult the authors.|
|Deposited On:||27 Jul 2012 08:14|
|Last Modified:||01 Aug 2012 11:46|
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