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Experimental research and finite element analysis of square concrete columns confined by FRP sheets under uniaxial compression

, , and . Proc. 17th Australasian Conference on the Mechanics of Structures and Materials. Gold Coast, Australia,, page 71-76. Department of Civil Engineering, Tsinghua Univ., Beijing, China, (June 2002)

Abstract

ABSTRACT: In order to investigate the behavior of square concrete columns confined by fiber reinforced polymer (FRP) sheets, five specimens were tested and analyzed using finite element method (FEM). The loading behaviors of the confined concrete columns under uniaxial compression can be divided into three phases. As confirmed by experimental results, finite element analysis (FEA) can effectively simulate the behavior of square columns confined by FRP sheets when the proper numerical model is adopted. Based on the test and FEA, the stress distributions and the stress development are obtained. This provides theoretical understanding for establishing the stress-strain curve model. It is suggested that the FEM is a powerful method for further research on numerical test and parameter analysis.

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