Experimental Performance of RC Hollow Columns Confined with CFRP

Column jacketing with fiber-reinforced polymer (FRP) composite materials has been extensively investigated in the last decade to address the issue of seismic upgrade and retrofit of existing reinforced concrete (RC) columns. Researchers have mainly focused their attention on solid columns, while very little research has been done on hollow columns strengthened with FRP. To study the behavior of noncircular hollow cross sections subjected to combined axial load and bending and to contribute to the comprehension of the resistant mechanisms present in FRP confinement, a total of 7 specimens were tested in this work, which is the first step in a broader endeavor aimed at evaluating the benefits generated by a FRP wrapping, computing (P-M) interaction diagrams for hollow columns confined with FRP, and defining design criteria for strengthening these elements using composite jackets. The theoretical analyses also assesses conditions under which standard approaches for columns with solid cross sections could be extended to the case of hollow columns.

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  • Supplemental Notes:
    • Abstract reprinted with permission from ASCE
  • Authors:
    • Lignola, G P
    • Prota, Andrea
    • Manfredi, Gaetano
    • COSENZA, E
  • Publication Date: 2007-1


  • English

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  • Accession Number: 01045051
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Mar 17 2007 8:36PM