MATEC Web Conf.
Volume 281, 2019International Conference of Engineering Risk (INCER 2019)
|Number of page(s)||6|
|Section||Civil Infrastructures: Bridges, Structures, Dams|
|Published online||21 May 2019|
A robust 3D finite element model for concrete columns confined by FRCM system
1 Faculty (lecturer), College of Engineering, University of Babylon, Hilla, Iraq.
2 Faculty (lecturer), Kerbala Technical Institute, Al-Furat Al-Awsat Technical University, 56001 Kerbala, Iraq.
3 Faculty (lecturer), Department of Construction and Projects, University of Babylon, Hilla, Iraq.
* Corresponding author: firstname.lastname@example.org
Fibre reinforced cementitious matric (FRCM) is a recent application of fibre reinforced polymer (FRP) reinforcement, developed to overcome several limitations associated with the use of organic adhesive [e.g. epoxies] in FRPs. It consists of two dimensional FRP mesh saturated with a cement mortar, which is inorganic in nature and compatible with concrete and masonry substrates. In this study, a robust three-dimensional (3D) finite element (FE) model has been developed to study the behaviour of slender reinforced concrete columns confined by FRCM jackets, and loaded concentrically and eccentrically. The model accounts for material nonlinearities in column core and cement mortar, composite failure of FRP mesh, and global buckling. The model response was validated against several laboratory tests from literature, comparing the ultimate load, load-lateral deflection and failure mode. Maximum divergence between numerical and experimental results was 12%. Following the validation, the model will be used later in a comprehensive parametric analysis to gain a profound knowledge of the strengthening system, and examine the effects of several factors expected to influence the behaviour of confined member.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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