Reliability Assessments of Concrete Filled FRP Tube Columns

Abstract:

This paper has investigated the reliability of concrete filled FRP tube columns using the FRP confined concrete theory developed recently by the authors. The reliability index of the column is assessed by Monte Carlo method. The importance of the use of partial safety factors of FRP and concrete in the reliability design of concrete filled FRP tube columns is studied. The results indicate that the reliability index of concrete filled FRP tube columns increases remarkably as the FRP partial safety factor increased. It is concluded that the FRP partial safety factor is independent on the coefficient of variation of FRP strength but is highly sensitive to the coefficient of variation of concrete strength especially in the case of low confinement ratio. Considering the actual situation in engineering applications, to reach a target reliability index of 3.5, a partial safety factor of 1.4 is finally recommend for both FRP and concrete.

• Periodical: Applied Mechanics and Materials (Volumes 405-408)
• Pages: 731-734
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.405-408.731
• Online since: September 2013
• Authors: Ying Wu Zhou, Feng Xing, Li Li Sui
• Keywords: Confined Concrete, FRP Tube Columns, Partial Safety Factor, Reliability Index

References

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DOI: 10.1016/s0950-0618(03)00045-x

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