Numerical simulation of FRP-jacketed RC columns subjected to cyclic and seismic loading

Jinguang Teng, L. Lam, G. Lin, J. Y. Lu, Q. G. Xiao

Research output: Journal article publicationJournal articleAcademic researchpeer-review

31 Citations (Scopus)

Abstract

This paper presents a numerical model for the cyclic/seismic behavior of reinforced concrete (RC) columns retrofitted with fiber-reinforced polymer (FRP) confining jackets. Such a column model has previously been unavailable despite the popularity of FRP jacketing as a seismic retrofit method for RC columns. The proposed numerical column model is based on a recent stress-strain model for FRP-confined concrete subjected to cyclic axial compression and a hysteretic moment-rotation model to account for the effect of strain penetration of the longitudinal steel bars in the column footing (i.e., effect of fixed-end rotations). This column model was implemented into OpenSees (Open System for Earthquake Engineering Simulation) using its fiber-section force-based nonlinear beam-column element. Predictions of the numerical column model for three FRP-jacketed RC columns subjected to either double-curvature bending or single-curvature bending are shown to be in close agreement with the test results.
Original languageEnglish
Article number04015021
JournalJournal of Composites for Construction
Volume20
Issue number1
DOIs
Publication statusPublished - 1 Feb 2016

Keywords

  • Columns
  • Confinement
  • Cyclic loading
  • Fiber-reinforced polymer (FRP)
  • Numerical modeling
  • OpenSees
  • Reinforced concrete
  • Seismic loading
  • Seismic retrofit

ASJC Scopus subject areas

  • Ceramics and Composites
  • Civil and Structural Engineering
  • Building and Construction
  • Mechanics of Materials
  • Mechanical Engineering

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