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Prediction of Compression Strength of Cold formed Steel Columns

Natashya, N.J.W. and Narayanan,, S.P and Kurian, V.J. (2008) Prediction of Compression Strength of Cold formed Steel Columns. In: 2nd Engineering Conference 2008 (ENCON 2008), 18-19 December 2008, Kuching.

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Abstract

Abstract—Cold formed steel structures are fabricated from structural sections made by bending flat sheets at ambient temperatures into shapes which will support loads. They are currently designed based on “effective width” philosophy. The effective width philosophy is used in the British, European, American and Australian codes. The Direct Strength Method is a new design philosophy utilizing the buckling loads obtained from a buckling analysis. This method has been included in the American and Australian codes. The method has been calibrated using some standard sections. For other types of sections the design formula are applicable but with higher safety factors. The buckling analysis is carried out using finite strip method. A free software “CUFSM” is available for the buckling analysis. Only limited studies have been carried out in Malaysia on cold formed structures. Some limited compression tests on sections, of 500 mm and 1000 mm long lengths, available in Malaysia were carried out and the results analyzed. BS 5950 Part 5 is currently used in Malaysia for design of cold formed steel structures. This work examines the results of the experimental work reported in literature and compares it with the design load capacity obtained using provisions of BS code and the Direct strength method. Keywords: cold formed steel columns, Direct strength method, compression test, effective width method, buckling analysis

Item Type:Conference or Workshop Item (Paper)
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Departments / MOR / COE:Departments > Civil Engineering
ID Code:1226
Deposited By: Prof Dr Kurian V John
Deposited On:14 Apr 2010 09:48
Last Modified:19 Jan 2017 08:26

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