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Nominal curvature design of circular HSC columns confined with post-tensioned steel straps

Ma, C. K. and Awang, A. Z. and Garcia, R. and Omar, W. and Pilakoutas, K. and Azimi, M. (2016) Nominal curvature design of circular HSC columns confined with post-tensioned steel straps. Structures, 7 . pp. 25-32. ISSN 2352-0124

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Official URL: http://dx.doi.org/10.1016/j.istruc.2016.04.002

Abstract

This article proposes new parameters for the practical design of circular high-strength concrete (HSC) columns confined with an innovative Steel Strapping Tensioning Technique (SSTT) using a nominal curvature approach. Previous experimental research has proven the effectiveness of the SSTT at providing active confinement and enhancing the ductility of HSC columns, but to date no practical procedures are available so that the technique can bewidely adopted in design practice. The proposed design approach is based on results fromsegmental analyses of slender SSTT-confined circular columns subjected to eccentric loads. The results obtained fromthe analyses are used to determine the variables governing the design of such columns. The use of the proposed design parameters predicts conservatively the capacity of small-scale slender HSC circular columns confined using the SSTT, and can be thus used in the practical design of reinforced concrete (RC) structures.

Item Type:Article
Uncontrolled Keywords:confinement, high-strength concrete, nominal curvature
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Built Environment
ID Code:70061
Deposited By: Narimah Nawil
Deposited On:22 Nov 2017 08:45
Last Modified:22 Nov 2017 08:45

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