Discrete finite element model of reactive powder concrete columns confined with fiber reinforced polymer

Muhammad Abbassi; Hooshang Dabbagh

doi:10.15282/jmes.15.2.2021.17.0642

Authors

M. Abbassi Department of Civil Engineering, Faculty of Engineering, University of Kurdistan, Sanandaj, Iran. Phone: +988716660073; Fax: +988716668513
H. Dabbagh Department of Civil Engineering, Faculty of Engineering, University of Kurdistan, Sanandaj, Iran. Phone: +988716660073; Fax: +988716668513

DOI:

https://doi.org/10.15282/jmes.15.2.2021.17.0642

Keywords:

Finite Element Analysis (FEA), Reactive Powder Concrete Columns, FRP Wrapping, Compressive Load, Discrete Finite Element Model

Abstract

Numerous finite element methods have been widely used to predict the response of normal/high strength concrete columns confined with Fiber Reinforced Polymer (FRP) under different loading conditions. In this regard, simulating the response of FRP-confined reactive powder concrete (RPC) columns has been less emphasized. The present study aimed to propose a finite element model based on fiber finite element methodology in order to predict the behavior of FRP confined RPC columns under axial compressive load with different eccentricities. The columns were modeled with a nonlinear beam-column element with two nodes with distributed plasticity. In addition, the proposed finite element model in the present study indicated its simplicity, low computational efforts, and flexibility by adopting a perfect bond between RPC and FRP. Further, the obtained results from the finite element analysis were compared to those from available tested specimens. Based on the comparisons, the proposed model can provide highly satisfactory predictions. Finally, the proposed model can be useful for efficient applications in practical engineering projects.

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