Experimental study of concrete beams reinforced with hybrid bars (SFCBs and BFRP bars)

Abstract

This paper presents the flexural performance of new hybrid concrete beams reinforced with steel fiber-reinforced polymer composite bars (SFCBs) and basalt fiber-reinforced polymer (BFRP) bars. Ten concrete beams reinforced with hybrid SFCBs, BFRP bars, and steel bars were constructed and tested. The main parameters were the reinforcement ratio and the ratio of FRP and steel content. The new hybrid-RC beams (with SFCBs and BFRP bars) exhibited good serviceability and ductility compared to the traditional hybrid-RC beams (with steels and BFRP bars), and the proposed model can accurately predict the moment capacity, deflection and crack width of all types of hybrid-RC beams (with SFCBs, BFRP bars and steel bars) based on the experimental results and the predictions.

This is a preview of subscription content, log in to check access.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10

References

  1. 1.

    Bossio A, Lignola GP, Fabbrocino F et al (2017) Nondestructive assessment of corrosion of reinforcing bars through surface concrete cracks. Struct Concr 18(1):104–117

    Article  Google Scholar 

  2. 2.

    Sanz B, Planas J, Sancho JM (2017) Influence of corrosion rate on the mechanical interaction of reinforcing steel, oxide and concrete. Mater Struct 50(4):195

    Article  Google Scholar 

  3. 3.

    Micelli F, Cascardi A, Aiello M A (2018) A Study on FRP-confined concrete in presence of different preload levels. In: Proceedings of the 9th international conference on fibre-reinforced polymer (FRP) composites in civil engineering—CICE, Paris, France, pp 17–19

  4. 4.

    Said AM, Nehdi ML (2004) Use of FRP for RC frames in seismic zones: part I. Evaluation of FRP beam-column joint rehabilitation techniques. Appl Compos Mater 11(4):205–226

    Article  Google Scholar 

  5. 5.

    Antonopoulos CP, Triantafillou TC (2003) Experimental investigation of FRP-strengthened RC beam-column joints. J Compos Constr 7(1):39–49

    Article  Google Scholar 

  6. 6.

    Mirmiran A, Shahawy M, Samaan M et al (1998) Effect of column parameters on FRP-confined concrete. J Compos Constr 2(4):175–185

    Article  Google Scholar 

  7. 7.

    Tan KH (1997) Behaviour of hybrid FRP-steel reinforced concrete beams. In: Proceedings of the 3rd international symposium on non-metallic (FRP) reinforcement for concrete structures (FRPRCS-3), Japan Concrete Institute, Sapporo

  8. 8.

    Tepfers R, Apinis A, Modniks J et al (1998) Ductility of hybrid fiber composite reinforcement FRP for concrete. In: Proceedings of the ECCM-8, European conference on composite materials, pp 89–96

  9. 9.

    Aiello MA, Ombres L (2002) Structural performances of concrete beams with hybrid (fiber-reinforced polymer-steel) reinforcements. J Compos Construct 6(2):133–140

    Article  Google Scholar 

  10. 10.

    Leung HY, Balendran RV (2003) Flexural behaviour of concrete beams internally reinforced with GFRP rods and steel rebars. Struct Surv 21(4):146–157

    Article  Google Scholar 

  11. 11.

    Qu W, Zhang X, Huang H (2009) Flexural behavior of concrete beams reinforced with hybrid (GFRP and steel) bars. J Compos Construct 13(5):350–359

    Article  Google Scholar 

  12. 12.

    Safan MA (2013) Flexural Behavior and Design of Steel-GFRP Reinforced Concrete Beams. ACI Mater J 110(6):677–685

    Google Scholar 

  13. 13.

    Qin R, Zhou A, Lau D (2017) Effect of reinforcement ratio on the flexural performance of hybrid FRP reinforced concrete beams. Compos Part B-Eng 108:200–209

    Article  Google Scholar 

  14. 14.

    ACI Committee 440 (2015) Guide for the design and construction of concrete reinforced with FRP bars. ACI 440:1R–15

    Google Scholar 

  15. 15.

    Wu G, Wu Z, Luo Y et al (2010) Mechanical properties of steel-FRP composite bar under uniaxial and cyclic tensile loads. J Mater Civ Eng 22(10):1056–1066

    Article  Google Scholar 

  16. 16.

    Sun ZY, Yang Y, Qin WH et al (2012) Experimental study on flexural behavior of concrete beams reinforced by steel-fiber reinforced polymer composite bars. J Reinf Plast Comp 31(24):53–61

    Article  Google Scholar 

  17. 17.

    Yang Y, Wu G, Wu ZS et al (2015) Structural performance of ballastless track slabs reinforced with BFRP and SFCB. Compos Part B-Eng 71:103–112

    Article  Google Scholar 

  18. 18.

    GB 50010-2010 (2010) Code for design of concrete structures. China Building Industry Press, Beijing (in Chinese)

  19. 19.

    ACI Committee 440 (2017) Guide test methods for fiber reinforced polymers (FRPs) for reinforcing or strengthening concrete structures. ACI b:440.3R

  20. 20.

    William KJ, Warnke ED (1975) Constitutive model for the triaxial behavior of concrete. In: Proceedings of the, international association for bridge and structural engineering, Zurich, Switzerland

  21. 21.

    Hognestad E, Hanson NW, McHenry D (1955) Concrete stress distribution in ultimate strength design. ACI J 52(12):455–479

    Google Scholar 

  22. 22.

    Kim YJ (2010) Flexural response of concrete beams prestressed with AFRP tendons: numerical investigation. J Compos Construct 14(6):647–658

    Article  Google Scholar 

  23. 23.

    Bischoff PH (2005) Reevaluation of deflection prediction for concrete beams reinforced with steel and fiber reinforced polymer bars. J Struct Eng 131(5):752–767

    Article  Google Scholar 

  24. 24.

    Gergely P, Lutz LA (1968) Maximum crack width in reinforced concrete flexural members. ACI Spec Publ 20:87–117

    Google Scholar 

  25. 25.

    Naaman AE, Jeong SM (1995) Structural ductility of concrete beams prestressed with FRP tendons. In: Taerwe L (ed) Non-metallic (FRP) reinforcement for concretes structures. E & FN Spon, London

  26. 26.

    Mufti AA, Newhook JP, Tadros G (1996) Deformability versus ductility in concrete beams with FRP reinforcement. In: Proceedings of the advanced composite materials in bridges and structures, Canadian Society for Civil Engineering, Montreal

  27. 27.

    Zou PXW (2003) Flexural behavior and deformability of fiber reinforced polymer prestressed concrete beams. J Compos Construct 7(4):275–284

    Article  Google Scholar 

  28. 28.

    Rashid MA, Mansur MA, Paramasivam P (2005) Behavior of aramid fiber-reinforced polymer reinforced high strength concrete beams under bending. J Compos Construct 9(2):117–127

    Article  Google Scholar 

  29. 29.

    Pang L, Qu WJ, Zhu P et al (2015) Design propositions for hybrid FRP-steel reinforced concrete beams. J Compos Construct 20(4):04015086

    Article  Google Scholar 

Download references

Acknowledgements

The authors would like to acknowledge financial support from the Natural Science Foundation of Jiangsu Province, China (Grant No: BK20180931), the National Natural Science Foundation of China (Grant No: 51908486), the National Natural Science Foundation of China (Grant No: 51528802) and the National Natural Science Foundation of China (Grant No: 51525801).

Author information

Affiliations

Authors

Corresponding author

Correspondence to Gang Wu.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and Permissions

About this article

Verify currency and authenticity via CrossMark

Cite this article

Yang, Y., Sun, Z., Wu, G. et al. Experimental study of concrete beams reinforced with hybrid bars (SFCBs and BFRP bars). Mater Struct 53, 77 (2020). https://doi.org/10.1617/s11527-020-01514-8

Download citation

Keywords

  • Flexural behavior
  • Steel fiber-reinforced polymer composite bar (SFCB)
  • Basalt fiber-reinforced polymer (BFRP)
  • Hybrid bars