RATIONAL APPROACH TO SHEAR DESIGN IN FIBER-REINFORCED POLYMER-PRESTRESSED CONCRETE STRUCTURES

The use of plasticity-based shear design methods for fiber-reinforced polymer (FRP) reinforced and prestressed concrete, as they are used at present, is inappropriate in the long term. In particular, the use of a plasticity-based truss model for shear behavior seems to be unsound, as reliance is placed on a predominantly elastic zone to redistribute stresses. A better approach to shear design would be to employ a model incorporating force equilibrium and compatibility of strains so that the elastic properties of the FRP could be included rationally. This would help to develop a real understanding and form a basis on which new guides and codes could be founded. In tandem with a more rational analytical approach, new configurations and types of FRP reinforcement need to be developed and researched so that these materials can be used more efficiently. An analytical approach to investigate the shear response of FRP-reinforced and -prestressed concrete has been developed, based on equilibrium and compatibility across a shear discontinuity. The analytical model presented here was developed in conjunction with an experimental program. Correlation between the analytical and experimental results is good and more accurate than the current guideline provisions for concrete beams containing FRP reinforcement.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/10900268
• Supplemental Notes:
  • This issue of the Journal of Composites for Construction carries a date of January/February 2005
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Whitehead, P A
  • IBELL, T J
• Publication Date: 2005-1

Language

• English

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: p. 90-100
• Serial:
  • Journal of Composites for Construction
  • Volume: 9
  • Issue Number: 1
  • Publisher: American Society of Civil Engineers
  • ISSN: 1090-0268
  • EISSN: 1943-5614
  • Serial URL: http://ascelibrary.org/journal/jccof2

Subject/Index Terms

• TRT Terms: Bonding; Composite materials; Concrete structures; Fiber reinforced plastics; Mathematical models; Numerical analysis; Plasticity; Prestressed concrete; Shear properties; Trusses
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 00986496
• Record Type: Publication
• Files: TRIS
• Created Date: Feb 14 2005 12:00AM