Unified model for evaluating ultimate strain of FRP confined concrete based on energy method

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

29 Scopus Citations
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Original languageEnglish
Pages (from-to)23-35
Journal / PublicationConstruction and Building Materials
Online published28 Nov 2015
Publication statusPublished - 30 Jan 2016
Externally publishedYes


An energy balance approach is adopted to develop the model for calculating the ultimate strain of fiber-reinforced polymer (FRP) confined concrete columns in this work. The proposed model can be used to predict the ultimate strain of columns under both concentric and eccentric loading. In the meantime, it makes use of a unified form so that it can be applied to different shapes of columns. A database that includes a large number of updated test results is used to evaluate the model parameters and coefficients. Compared with other existing models reported in extant literature, the proposed model exhibits a better performance.

Research Area(s)

  • Concrete column, Confinement, Energy method, FRP, Ultimate strain