Study on the Impact Response of Concrete Filled FRP-Steel Tube Structures

Abstract:

This paper studies the impact performance of concrete filled FRP-steel tube which is a composed structure made by filling concrete into steel tube and wrapping outside with fiber reinforced polymer (FRP) sheet. Numerical simulations have been conducted to study the dynamic response of fixed-pined supported beams of concrete filled FRP-steel tubes. The finite element models of concrete filled FRP-steel tubes are established to analyse its lateral impact dynamic characteristics under different loading situations, with respective kinds of FRP and thicknesses of steel tubes. The impact force and displacement histories were recorded. Comparing to the traditional concrete filled steel tube structure, the concrete filled FRP-steel tube indicates a promising structure with more advantages in the mechanical and constructional performance. Especially with its higher loading-carrying capacity and better toughness, it is more adaptable for the structures subjected to accidental impact load. Analytical solution is compared with experimental result to show the correctness and the effectiveness of present study.

• Periodical: Advanced Materials Research (Volumes 368-373)
• Pages: 549-552
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.368-373.549
• Online since: October 2011
• Authors: Chen Chen, Ying Hua Zhao, Chun Yang Zhu, Li Wei
• Keywords: Concrete Filled FRP-Steel Tube, Impact, Numerical Simulation

References

[1] S.J. Prichard, S.H. Perry: Struct Eng 78(17), 23-27 (2000)

[2] Li Z, Li BC, Li YG et al: The research of the dynamic property of steel tube-confined concrete short column under axial impact loads, Taiyuan Univ Technol 37(4), 383-385 (2006) (in Chinese)

[3] Xiao Y, Zhang WX, Shan JH et al: Impact tests of concrete-filled tubes and confined concrete filled tubes, 6th international conference on shock & impact loads on structures, Perth, W. Australia, (2005)

DOI: 10.1260/136943307780429725

[4] Zhang B: analysis on Steel Tube-Confined Concrete Under the Lateral Impact, Taiyuan Univ Technol (in Chinese)