Skip to main content
placeholder image

Seismic Performance of Hybrid Columns of Concrete-Filled Square Steel Tube with FRP-Confined Concrete Core

Journal Article


Abstract


  • An experimental program that investigated the seismic performance of concrete-filled square steel tube with fiber-reinforced

    polymer (FRP)–confined concrete core (FCCC) column (SCFC) was conducted. Fourteen SCFC specimens were fabricated with four

    parameters of axial compression ratio, strength grade of concrete, thickness of FRP tube, and thickness of steel tube and tested under constant

    axial compression and reversed-cyclic lateral loading. Examinations of the test data resulted a number of significant conclusions with

    regard to the influence of the investigated column parameters on the performance of SCFC columns. Of primary importance, SCFC columns

    exhibit favorable energy dissipation and ductility, even when the columns were subjected to high axial loads. The results also indicate that

    SCFC columns delivered satisfactory lateral moment-bearing capacity and displacement ductility under high axial compression ratio.

    In addition, a good level of average stiffness and equivalent viscous damping ratio were examined. Furthermore, the variations of hoop

    strains along column height, the relationship of axial displacement–lateral drift ratio, and the plastic hinge length were examined to

    evaluate the seismic performance of SCFC columns.

UOW Authors


  •   Feng, Peng (external author)
  •   Cheng, Shi (external author)
  •   Yu, Tao

Publication Date


  • 2018

Citation


  • Feng, P., Cheng, S. & Yu, T. (2018). Seismic Performance of Hybrid Columns of Concrete-Filled Square Steel Tube with FRP-Confined Concrete Core. Journal of Composites for Construction, 22 (4),

Scopus Eid


  • 2-s2.0-85046651174

Volume


  • 22

Issue


  • 4

Place Of Publication


  • United States

Abstract


  • An experimental program that investigated the seismic performance of concrete-filled square steel tube with fiber-reinforced

    polymer (FRP)–confined concrete core (FCCC) column (SCFC) was conducted. Fourteen SCFC specimens were fabricated with four

    parameters of axial compression ratio, strength grade of concrete, thickness of FRP tube, and thickness of steel tube and tested under constant

    axial compression and reversed-cyclic lateral loading. Examinations of the test data resulted a number of significant conclusions with

    regard to the influence of the investigated column parameters on the performance of SCFC columns. Of primary importance, SCFC columns

    exhibit favorable energy dissipation and ductility, even when the columns were subjected to high axial loads. The results also indicate that

    SCFC columns delivered satisfactory lateral moment-bearing capacity and displacement ductility under high axial compression ratio.

    In addition, a good level of average stiffness and equivalent viscous damping ratio were examined. Furthermore, the variations of hoop

    strains along column height, the relationship of axial displacement–lateral drift ratio, and the plastic hinge length were examined to

    evaluate the seismic performance of SCFC columns.

UOW Authors


  •   Feng, Peng (external author)
  •   Cheng, Shi (external author)
  •   Yu, Tao

Publication Date


  • 2018

Citation


  • Feng, P., Cheng, S. & Yu, T. (2018). Seismic Performance of Hybrid Columns of Concrete-Filled Square Steel Tube with FRP-Confined Concrete Core. Journal of Composites for Construction, 22 (4),

Scopus Eid


  • 2-s2.0-85046651174

Volume


  • 22

Issue


  • 4

Place Of Publication


  • United States