Uniaxial tension behavior of reinforced concrete members strengthened with carbon fiber sheets

Khalid Farah*, Yasuhiko Sato

*この研究の対応する著者

研究成果: Article査読

12 被引用数 (Scopus)

抄録

A two-dimensional (2D) nonlinear numerical analysis code by using the rigid body spring method (RBSM) was developed by the writers at Hokkaido University to simulate the behavior of reinforced concrete (RC) members strengthened with fiber-reinforced polymer (FRP) sheets. The code supports the nonlinear constitutive laws for the different materials and nonlinear bond stress-slip relationships for steel-concrete and FRP sheet-concrete interfaces. This study uses the aforementioned code to examine the uniaxial tension behavior of RC members strengthened with carbon fiber sheets (CFS). Experimental results are compared with relevant numerical outputs to validate the model and confirm its ability to simulate the experimental observations. This study also assesses the influence of the amount of CFS strengthening on the tension-stiffening behavior of strengthened members. Finally, this research also suggests new analytical expressions for the average stress-strain relationships of concrete and steel in tension in the presence of stiffening contributions from internal steel reinforcement bars and externally bonded CFS reinforcement.

本文言語English
ページ(範囲)215-228
ページ数14
ジャーナルJournal of Composites for Construction
15
2
DOI
出版ステータスPublished - 2011 3
外部発表はい

ASJC Scopus subject areas

  • セラミックおよび複合材料
  • 土木構造工学
  • 建築および建設
  • 材料力学
  • 機械工学

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