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dc.contributor.authorChitawadagi, M.V.-
dc.contributor.authorNarasimhan, M.C.-
dc.contributor.authorKulkarni, S.M.-
dc.date.accessioned2020-03-31T08:18:32Z-
dc.date.available2020-03-31T08:18:32Z-
dc.date.issued2010-
dc.identifier.citationJournal of Constructional Steel Research, 2010, Vol.66, 10, pp.1248-1260en_US
dc.identifier.urihttp://idr.nitk.ac.in/jspui/handle/123456789/10023-
dc.description.abstractThis paper presents the effect of changes in diameter of the steel tube (D), wall thickness of the steel tube (t ), strength of in-fill concrete (f cu), and length of the tube (L) on ultimate axial load (P ue) and axial shortening at the ultimate point (?ue ) of circular Concrete Filled steel Tubes (CFT). Taguchi's approach with an L9 orthogonal array is used to reduce the number of experiments. With the help of initial experiments, linear regression models are developed to predict the axial load and the axial shortening at the ultimate point. A total of 243 circular CFT samples are tested to verify the accuracy of these models at three factors with three levels. The experimental results are analyzed using Analysis Of Variance to investigate the most influencing factor on strength and axial shortening of CFT samples. Comparisons are made with predicted column strengths using the existing design codes, AISC-LRFD-2005 and EC4-1994. 2010 Elsevier Ltd. All rights reserved.en_US
dc.titleAxial strength of circular concrete-filled steel tube columns - DOE approachen_US
dc.typeArticleen_US
Appears in Collections:1. Journal Articles

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