NONLINEAR FINITE ELEMENT ANALYSIS OF PVC-FRP CONFINED CONCRETE SHORT COLUMN UNDER AXIAL COMPRESSION

Yu Feng; Cheng Anchun; Xu Guoshi; Li Deguang

doi:10.13204/j.gyjz201504014

Volume 45 Issue 4

Jun. 2015

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Yu Feng, Cheng Anchun, Xu Guoshi, Li Deguang. NONLINEAR FINITE ELEMENT ANALYSIS OF PVC-FRP CONFINED CONCRETE SHORT COLUMN UNDER AXIAL COMPRESSION[J]. INDUSTRIAL CONSTRUCTION, 2015, 45(4): 77-82. doi: 10.13204/j.gyjz201504014

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Yu Feng, Cheng Anchun, Xu Guoshi, Li Deguang. NONLINEAR FINITE ELEMENT ANALYSIS OF PVC-FRP CONFINED CONCRETE SHORT COLUMN UNDER AXIAL COMPRESSION[J]. INDUSTRIAL CONSTRUCTION, 2015, 45(4): 77-82. doi: 10.13204/j.gyjz201504014

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NONLINEAR FINITE ELEMENT ANALYSIS OF PVC-FRP CONFINED CONCRETE SHORT COLUMN UNDER AXIAL COMPRESSION

doi: 10.13204/j.gyjz201504014

Publish Date: 2015-04-20

Abstract

Abstract

Using finite element analysis software，considering the non-linear behavior of core concrete under tri-axial state and interaction between the PVC tube and the core concrete，a finite element analysis model of PVC-FRP confined concrete short column was established． The results showed that the brittleness of plain concrete was greatly improved by PVC-FRP tube，and the non-linear finite element analysis results agreed well with test results． On this basis，the variation rules of the internal forces of core concrete，PVC tube and FRP strips during loading were analyzed by using the established finite element analysis model． The influence law of concrete strength，the layers of FRP strips，the thickness of PVC tube and the width of FRP strips on the stress-strain curve of PVC-FRP confined concrete short column was also discussed．
- PVC-FRP confined concrete column,
- finite element analysis,
- force mechanism,
- axial compression,
- stress-strain relationship

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