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Compressive Behavior of Sustainable Steel-FRP Composite Bars with Different Slenderness Ratios

Author

Listed:
  • Yu Tang

    (Key Laboratory of Concrete and Prestressed Concrete Structures of the Ministry of Education, Southeast University, Nanjing 210096, China)

  • Zeyang Sun

    (Key Laboratory of Concrete and Prestressed Concrete Structures of the Ministry of Education, Southeast University, Nanjing 210096, China)

  • Gang Wu

    (Key Laboratory of Concrete and Prestressed Concrete Structures of the Ministry of Education, Southeast University, Nanjing 210096, China)

Abstract

This paper presents experimental studies on the compressive behavior of a sustainable steel-fiber reinforced composite bar (SFCB) under uniaxial compressive loading. The SFCB, combined with steel and fiber reinforced polymer (FRP), is expected to significantly enhance structural safety and sustainability. A new test method with LVDT and extensometer sensors was developed and verified through experiments to test the tensile and compressive behavior of the SFCB. Fifty-four specimens including SFCB and inner steel bar (ISB) with different slenderness ratios were tested. The test results indicated that the initial compressive elastic modulus of the SFCB was essentially the same as its initial tensile elastic modulus. The compressive yield load of the SFCB was essentially irrelevant to the slenderness ratio, and the ultimate compressive stress of the SFCBs varied inversely with the slenderness ratios. The squash load of the SFCB tended to be conservative for predicting the compressive yield load of the SFCB, while the equivalent critical global buckling load of the SFCB was much higher than its corresponding compressive yield load and ultimate load due to the inelastic buckling mechanism of the SFCB within the range of the equivalent slenderness ratios studied in this paper.

Suggested Citation

  • Yu Tang & Zeyang Sun & Gang Wu, 2019. "Compressive Behavior of Sustainable Steel-FRP Composite Bars with Different Slenderness Ratios," Sustainability, MDPI, vol. 11(4), pages 1-16, February.
    • Handle: RePEc:gam:jsusta:v:11:y:2019:i:4:p:1118-:d:207739
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    References listed on IDEAS

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    1. Santi Maria Cascone & Vincenzo Sapienza & Irene Lionti & Simona Maria Carmela Porto, 2016. "Fiber-Reinforced Polymer Nets for Strengthening Lava Stone Masonries in Historical Buildings," Sustainability, MDPI, vol. 8(4), pages 1-10, April.
    2. Yeou-Fong Li & Habib Armel Meda & Walter Chen, 2018. "The Design and Analysis of Internally Stiffened GFRP Tubular Decks—A Sustainable Solution," Sustainability, MDPI, vol. 10(12), pages 1-15, December.
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    Cited by:

    1. Goran Vizentin & Darko Glujić & Vedrana Špada, 2021. "Effect of Time-Real Marine Environment Exposure on the Mechanical Behavior of FRP Composites," Sustainability, MDPI, vol. 13(17), pages 1-20, September.
    2. Mostafa Kazemi & Mohammad Daneshfar & Yousef Zandi & Alireza Sadighi Agdas & Negin Yousefieh & Leili Mohammadifar & Aida Rahmani & Mohammad Saberian & Amr Mamdouh & Mohamed Amine Khadimallah & Jie Li, 2022. "Effects of the Concrete Strength and FRP Reinforcement Type on the Non-Linear Behavior of Concrete Deep Beams," Sustainability, MDPI, vol. 14(7), pages 1-28, March.
    3. Mohammadamin Mirdarsoltany & Alireza Rahai & Farzad Hatami & Reza Homayoonmehr & Farid Abed, 2021. "Investigating Tensile Behavior of Sustainable Basalt–Carbon, Basalt–Steel, and Basalt–Steel-Wire Hybrid Composite Bars," Sustainability, MDPI, vol. 13(19), pages 1-13, September.
    4. Yeou-Fong Li & Jian-Yu Lai & Chung-Cheng Yu, 2019. "The Push-Over Test and Numerical Analysis Study on the Mechanical Behavior of the GFRP Frame for Sustainable Prefabricated Houses," Sustainability, MDPI, vol. 11(23), pages 1-19, November.

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    1. Yeou-Fong Li & Jian-Yu Lai & Chung-Cheng Yu, 2019. "The Push-Over Test and Numerical Analysis Study on the Mechanical Behavior of the GFRP Frame for Sustainable Prefabricated Houses," Sustainability, MDPI, vol. 11(23), pages 1-19, November.

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