Skip to main content
placeholder image

Effect of eccentric load on retrofitted reinforced concrete columns confined with FRP

Conference Paper


Download full-text (Open Access)

Abstract


  • Different behaviour of diverse sections of confined Reinforced Concrete (RC) columns under

    eccentric load is investigated in this study. Three types of sections are considered, which include square columns,

    square with rounded corners and modified circular columns. Twelve reinforced square concrete columns were

    made from normal strength concrete and subdivided into four groups. The first three columns were the Reference

    Group and had no modification.The next three columnswere modified with round corners and wrapped with three

    layers of Carbon Fibre Reinforced Polymer (CFRP), another three were bonded with four pieces of segmental

    circular concrete covers and wrapped with three layers of CFRP, and the last three were bonded with concrete

    covers and confined with steel straps. All columns were tested under concentric loading, 15mm and 25mm

    eccentric loading. Results from the study show that all confinement methods increase capacity and ductility of

    columns, in which segmental circular concrete covers considerably reduce the stress concentration on the corners

    and increase the efficiency of the confinement. Effect of eccentric load on the specimens wrapped with FRP is

    significantly higher than the Reference Group.

UOW Authors


  •   Pham, Thong m. (external author)
  •   Lei, Xu (external author)
  •   Hadi, Muhammad

Publication Date


  • 2013

Citation


  • Pham, T. M., Lei, X. & Hadi, M. N. S. (2013). Effect of eccentric load on retrofitted reinforced concrete columns confined with FRP. In B. Samali, D. J. Attard & J. Song (Eds.), 22nd Australasian Conference on the Mechanics of Structures and Materials (ACMSM22) (pp. 139-144). London, United Kingdom: Taylor & Francis Group.

Scopus Eid


  • 2-s2.0-84881181542

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=8179&context=engpapers&unstamped=1

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/5247

Start Page


  • 139

End Page


  • 144

Abstract


  • Different behaviour of diverse sections of confined Reinforced Concrete (RC) columns under

    eccentric load is investigated in this study. Three types of sections are considered, which include square columns,

    square with rounded corners and modified circular columns. Twelve reinforced square concrete columns were

    made from normal strength concrete and subdivided into four groups. The first three columns were the Reference

    Group and had no modification.The next three columnswere modified with round corners and wrapped with three

    layers of Carbon Fibre Reinforced Polymer (CFRP), another three were bonded with four pieces of segmental

    circular concrete covers and wrapped with three layers of CFRP, and the last three were bonded with concrete

    covers and confined with steel straps. All columns were tested under concentric loading, 15mm and 25mm

    eccentric loading. Results from the study show that all confinement methods increase capacity and ductility of

    columns, in which segmental circular concrete covers considerably reduce the stress concentration on the corners

    and increase the efficiency of the confinement. Effect of eccentric load on the specimens wrapped with FRP is

    significantly higher than the Reference Group.

UOW Authors


  •   Pham, Thong m. (external author)
  •   Lei, Xu (external author)
  •   Hadi, Muhammad

Publication Date


  • 2013

Citation


  • Pham, T. M., Lei, X. & Hadi, M. N. S. (2013). Effect of eccentric load on retrofitted reinforced concrete columns confined with FRP. In B. Samali, D. J. Attard & J. Song (Eds.), 22nd Australasian Conference on the Mechanics of Structures and Materials (ACMSM22) (pp. 139-144). London, United Kingdom: Taylor & Francis Group.

Scopus Eid


  • 2-s2.0-84881181542

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=8179&context=engpapers&unstamped=1

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/5247

Start Page


  • 139

End Page


  • 144