Axial Behavior and Modeling of Confined Small-, Medium-, and Large-Scale Circular Sections with Carbon Fiber-Reinforced Polymer Jackets

This article reports on a study of the axial behavior and modeling of confined circular sections of concrete with carbon fiber-reinforced polymer (FRP) jackets. The authors note that the axial stress-strain behaviors of unconfined and confined concrete differ significantly. Confined concrete shows improved compressive strength and axial strain capacity over unconfined concrete. The study involved axial load tests of small-scale (152 mm diameter by 305 mm tall cylinders), medium-scale (254 mm diameter by 762 mm tall), and large-scale (610 mm in diameter by 1.83 m tall) circular concrete specimens, all of which had a height-to-diameter ratio less than or equal to 3.0. At the relatively high level of confinement provided, a scale effect was not observed; similar results were observed regardless of column size. The authors conclude by presenting appropriate parameters for modeling confined concrete and by making recommendations for the modeling and design of axially-loaded confined concrete.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/13846957
• Authors:
  • Carey, Shawn A
  • Harries, Kent A
• Publication Date: 2005-7

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 596-604
• Serial:
  • ACI Structural Journal
  • Volume: 102
  • Issue Number: 4
  • Publisher: American Concrete Institute (ACI)
  • ISSN: 0889-3241
  • Serial URL: http://www.concrete.org/PUBS/JOURNALS/SJHOME.ASP

Subject/Index Terms

• TRT Terms: Axial compression; Axial loads; Carbon fibers; Columns; Compressive strength; Confined concrete; Deformation curve; Fiber reinforced plastics; Jacketing (Strengthening)
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 01002955
• Record Type: Publication
• Files: TRIS
• Created Date: Aug 1 2005 11:52AM