Nonlinear finite element analysis of reinforced concrete beams strengthened by fiber-reinforced plastics

Hsuan Teh Hu, Fu Ming Lin, Yih Yuan Jan

Research output: Contribution to journalArticle

88 Citations (Scopus)

Abstract

Numerical analyses are performed using the ABAQUS finite element program to predict the ultimate loading capacity of rectangular reinforced concrete beams strengthened by fiber-reinforced plastics applied at the bottom or on both sides of these beams. Nonlinear material behavior, as it relates to steel reinforcing bars, plain concrete, and fiber-reinforced plastics is simulated using appropriate constitutive models. The influences of fiber orientation, beam length and reinforcement ratios on the ultimate strength of the beams are investigated. It has been shown that the use of fiber-reinforced plastics can significantly increase the stiffnesses as well as the ultimate strengths of reinforced concrete beams. In addition, with the same fiber-reinforced plastics layer numbers, the ultimate strengths of beams strengthened by fiber-reinforced plastics at the bottom of the beams are much higher than those strengthened by fiber-reinforced plastics on both sides of the beams.

Original languageEnglish
Pages (from-to)271-281
Number of pages11
JournalComposite Structures
Volume63
Issue number3-4
DOIs
Publication statusPublished - 2004 Jan 1

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Civil and Structural Engineering

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