CONFINEMENT OF CONCRETE CYLINDERS WITH CREEP

Preliminary testing of concrete cylinders and columns wrapped with advanced composite material (ACM) sheets has already shown that the confinement improved their compressive strength and ductility. An additional experimental program was carried on, in which more complex configurations of the wrapping sheets were studied. The present article focuses on these recent experimental results, obtained by testing a series of confined circular and short concrete columns with rectangular and square sections in compression. Results for various confinement configurations and shapes are presented. In the first series of tests presented, axial loads were applied to concrete cylinders wrapped with different carbon laminae orientations. A relationship was found between the orientation of the fibres and the stiffness of the confined cylinder. The second series of tests presented here, which were conducted on square and rectangular confined prisms, have provided satisfying results. It was found that the uniaxial compressive strength is greatly improved by rounding the corners of the columns.

• Corporate Authors:

  University of Arizona, Tucson

  Department of Civil Engineering and Engineering Mechanics
  1209 E 2nd Street
  Tucson, AZ  United States  85721-0072
• Authors:
  • Picher, F
  • ROCHETTE, P
  • Labossiere, P
• Conference:
  • First International Conference on Composites in Infrastructure
  • Location: Tucson, Arizona
  • Date: 1996-1-15 to 1996-1-17
• Publication Date: 1996-1

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 829-841

Subject/Index Terms

• TRT Terms: Axial loads; Carbon fibers; Columns; Composite materials; Compressive strength; Concrete structures; Confining pressure; Rectangles; Reinforced concrete; Shape; Stiffness; Uniaxial stress
• Uncontrolled Terms: Composite wrapping; Orientation; Square sections
• Subject Areas: Geotechnology; Highways; Materials; I32: Concrete; I34: Steels and Metals;

Filing Info

• Accession Number: 00762513
• Record Type: Publication
• Files: TRIS
• Created Date: Apr 19 1999 12:00AM