COMPRESSION FIELD MODELING OF REINFORCED CONCRETE SUBJECTED TO REVERSED LOADING: VERIFICATION

General constitutive models for reinforced concrete subjected to reversed cyclic loading were developed for use in 2-D nonlinear finite element analyses, based on the smeared rotating crack assumption. The algorithm used was based on a total-load secant stiffness approach incorporating the compatibility, equilibrium, and constitutive relationships of the Modified Compression Field Theory. In this paper, verification is provided through analyses that include slender walls, controlled by flexural effects, and squat walls, where response is dominated by shear-related mechanisms. The formulations are found to accurately simulate behavior of structural walls, demonstrating that a secant stiffness procedure can effectively be adapted to model response to general loading. Behavioral aspects such as ultimate strength, ductility, energy dissipation, and failure mechanisms are well simulated. Second-order mechanisms are also examined and discussed, including the vertical elongation of flange walls, and the in-plane horizontal expansion of central web walls, which affect the failure load and failure modes of structures. Shortcomings of the compression field approach are also examined.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/13846957
• Corporate Authors:

  American Concrete Institute (ACI)

  38800 Country Club Drive
  Farmington Hills, MI  United States  48331
• Authors:
  • Palermo, D
  • Vecchio, F J
• Publication Date: 2004-3

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 155-164
• Serial:
  • ACI Structural Journal
  • Volume: 101
  • Issue Number: 2
  • Publisher: American Concrete Institute (ACI)
  • ISSN: 0889-3241
  • Serial URL: http://www.concrete.org/PUBS/JOURNALS/SJHOME.ASP

Subject/Index Terms

• TRT Terms: Algorithms; Compression; Concrete structures; Dissipation; Ductility; Failure; Finite element method; Mathematical models; Reinforced concrete; Repeated loads; Secant; Stiffness; Ultimate strength; Walls
• Subject Areas: Bridges and other structures; Design; Energy; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00971260
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 6 2004 12:00AM