Axial compressive behavior of FRP-confined concrete: Experimental test database and a new design-oriented model
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(Accepted version)
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2013
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Ozbakkaloglu, T.
Lim, J.
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Journal article
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Composites Part B: Engineering, 2013; 55:607-634
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Togay Ozbakkaloglu, Jian C. Lim
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Abstract
A large number of experimental studies have been conducted over the last two decades to understand the behavior of FRP-confined concrete columns. This paper presents a comprehensive test database constructed from the results of axial compression tests on 832 circular FRP-confined concrete specimens published in the literature. The database was assembled through an extensive review of the literature that covered 3042 test results from 253 experimental studies published between 1991 and the middle of 2013. The suitability of the results for the database was determined using carefully chosen selection criteria to ensure a reliable database. This database brings reliable test results of FRP-confined concrete together to form a unified framework for future reference. Close examination of the test results reported in the database led to a number of important observations on the influence of important parameters on the behavior of FRP-confined concrete. A new design-oriented model that was developed to quantify these observations is presented in the final part of the paper. It is shown that the predictions of the proposed model are in close agreement with the test results and the model provides improved predictions of the ultimate conditions of FRP-confined concrete compared to any of the existing models. © 2013 Elsevier Ltd. All rights reserved.
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© 2013 Elsevier Ltd. All rights reserved.